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CN110671319B - A spherical pump with hydrostatic support - Google Patents

A spherical pump with hydrostatic support Download PDF

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Publication number
CN110671319B
CN110671319B CN201911061558.XA CN201911061558A CN110671319B CN 110671319 B CN110671319 B CN 110671319B CN 201911061558 A CN201911061558 A CN 201911061558A CN 110671319 B CN110671319 B CN 110671319B
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CN
China
Prior art keywords
liquid
pressure
groove
flow channel
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201911061558.XA
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Chinese (zh)
Other versions
CN110671319A (en
Inventor
王陆一
李正平
张五星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Spherical Power Technology Co ltd
Original Assignee
Shenzhen Spherical Power Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Spherical Power Technology Co ltd filed Critical Shenzhen Spherical Power Technology Co ltd
Priority to CN201911061558.XA priority Critical patent/CN110671319B/en
Publication of CN110671319A publication Critical patent/CN110671319A/en
Priority to KR1020227014536A priority patent/KR102653700B1/en
Priority to PCT/CN2020/122673 priority patent/WO2021083019A1/en
Priority to EP20882813.7A priority patent/EP4053411B1/en
Priority to JP2022550043A priority patent/JP7430854B2/en
Priority to US17/728,939 priority patent/US11802560B2/en
Application granted granted Critical
Publication of CN110671319B publication Critical patent/CN110671319B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0096—Heating; Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/90—Improving properties of machine parts
    • F04C2230/91—Coating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/10—Stators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • F04C2240/54—Hydrostatic or hydrodynamic bearing assemblies specially adapted for rotary positive displacement pumps or compressors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The patent discloses a spherical pump with static pressure support, including cylinder cap (1), cylinder body (5), piston (2), carousel (4), main shaft (6) and main shaft support (7), be provided with spout (601) on the up end of cylinder cap (1) and cylinder body (5) formation spherical inner chamber, slide shoe (403) of carousel axle tip inserts in spout (601) of main shaft (6) upper end, constitute the rotor after piston (2) and carousel (4) articulated with upper end swing joint of main shaft (6), be provided with the static pressure support between two parallel sides of slide shoe (403) and spout (601), the static pressure support is including first liquid flow channel (404) that set up on carousel (4), second liquid flow channel (405) and the liquid pressure-bearing groove of setting on two parallel sides of slide shoe (403), the unbalanced force of spherical pump operation in-process has been eliminated to this patent's advantage, the consumption of spherical pump has been reduced.

Description

Spherical pump with static pressure support
Technical Field
The patent relates to a variable displacement mechanism, in particular to a spherical pump with a static pressure support.
Background
The spherical pump is a variable capacity mechanism with a brand new structure, which is newly invented in recent years, and has the advantages of no air inlet/outlet valve, less moving parts, surface contact among the moving parts, and surface sealing structure, so that the sealing is reliable, and the like, and high pressure and structure miniaturization can be realized. Spherical pumps are now used in practice for a number of applications, being new constructions for pumps. However, because a fixed included angle is formed between the axis of the piston and the main shaft of the spherical pump, the pressure in the two working chambers changes reciprocally, when one working chamber is at high pressure, the other working chamber is at low pressure, so that the piston and the rotary table deflect to one side of the low pressure, the spherical surface of the cylinder body is extruded, the gap between the rotary table and the spherical surface of the cylinder body at the side is reduced, an oil film or a water film is damaged, the friction force is increased, the power consumption is increased, and the rotor and the sliding shoes are abnormally worn.
Disclosure of Invention
The invention aims to design a spherical pump with a static pressure support, wherein the static pressure support is added on a spherical pump rotor sliding shoe, and unbalanced force generated by the spherical pump in the running process of the spherical pump is balanced through liquid pressure, so that the running power consumption is reduced, and the service life of the spherical pump is prolonged.
The technical scheme of the invention is that the spherical pump with the static pressure support comprises:
the cylinder body is provided with a hemispherical inner cavity, and a turntable shaft through hole penetrating through the outside of the cylinder is arranged on the cylinder body;
The cylinder cover is provided with a hemispherical inner cavity, the lower end of the cylinder cover is fixedly connected with the upper end of the cylinder body to form a spherical inner cavity, a piston shaft hole, a liquid inlet waist-shaped hole and a liquid outlet waist-shaped hole are arranged on the inner spherical surface of the cylinder cover, orifices of the liquid inlet waist-shaped hole and the liquid outlet waist-shaped hole on the inner spherical surface of the cylinder cover are respectively arranged in an annular space perpendicular to the axis of the piston shaft hole, the liquid inlet waist-shaped hole is communicated with the liquid inlet hole at the upper end of the cylinder cover, and the liquid outlet waist-shaped hole is communicated with the liquid outlet hole at the upper end of the cylinder cover;
the piston is provided with a spherical top surface, two side surfaces with a certain angle and piston pin seats at the lower parts of the two side surfaces, and a piston shaft is protruded in the center of the spherical top surface of the piston, and the axis of the piston shaft passes through the spherical center of the spherical top surface of the piston;
The rotary table is provided with a rotary table pin seat corresponding to the piston pin seat at the upper part, a rotary table shaft is protruded at the center of the lower end of the rotary table, the rotary table shaft passes through the spherical center of the spherical surface of the rotary table, and a sliding shoe is fixedly arranged at the end part of the rotary table shaft;
The main shaft is connected to the lower end of the cylinder body through the main shaft bracket, and the main shaft bracket is fixedly connected with the lower end of the cylinder body and provides support for the rotation of the main shaft;
The axes of the piston shaft hole and the turntable shaft pass through the sphere center of the spherical inner cavity, and an included angle is formed between the axis of the piston shaft hole and the axis of the main shaft; the rotary table pin seat and the piston pin seat are matched to form a cylindrical surface hinge, sealing running fit is formed between the matching surfaces of the cylindrical surface hinge, a rotary table shaft extends out of the lower end of the cylinder body, then the sliding shoes are inserted into a sliding groove at the upper end of the main shaft, two mutually parallel side surfaces of the sliding shoes are attached to the two side surfaces of the sliding groove to form sliding fit, the two parallel side surfaces of the sliding shoes are symmetrically arranged at two sides of the axis of the rotary table and are parallel to the axis of the cylindrical surface hinge, when the main shaft rotates to drive the rotary table and the piston, the sliding shoes slide in the sliding groove in a reciprocating manner, the piston and the rotary table relatively swing, two working chambers with alternating volumes are formed between the upper end surface of the rotary table, the two side surfaces of the piston and the spherical inner cavity, a static pressure support is arranged between the two parallel side surfaces of the sliding shoes and the sliding groove, the static pressure support comprises a first liquid flow channel, a second liquid flow channel and a liquid pressure bearing groove, wherein the inlet of the first liquid flow channel is communicated with one working chamber, the inlet of the second liquid flow channel is communicated with the other working chamber, and the outlet of the first liquid flow channel is communicated with the liquid pressure bearing groove, and the outlet of the liquid bearing groove is respectively communicated with the liquid bearing groove on the two parallel side surfaces of the sliding shoes;
the first liquid flow channel inlet and the first liquid flow channel outlet are respectively positioned at two sides of a plane parallel to two parallel sides of the sliding shoe where the axis of the turntable is positioned;
The rotary disc pin seat is of a semi-cylindrical structure, a groove is formed in the middle of the semi-cylindrical structure, a through piston pin hole is formed in the central axis of the semi-cylindrical structure, two ends of the rotary disc pin seat are provided with semi-cylindrical grooves, a convex semi-cylindrical is arranged in the middle of the rotary disc pin seat, a through rotary disc pin hole is formed in the central axis of the semi-cylindrical structure, a center pin is inserted into the pin hole formed by matching the rotary disc pin seat and the piston pin seat to form a cylindrical hinge, two ends of the center pin are provided with circular arcs, and the shape of the circular arcs is matched with that of a spherical inner cavity;
The first liquid flow channel inlet is arranged on the upper end surface of the rotary table and communicated with the working chamber, and the first liquid flow channel outlet is arranged on one of the two parallel side surfaces of the sliding shoe;
the sliding shoe lining plates are arranged between the sliding shoe side surfaces and the side surfaces attached to the sliding grooves, and the two parallel side surfaces of the sliding shoe are attached to the sliding shoe lining plates on the two sides and slide in the sliding grooves in a reciprocating manner along the surfaces of the sliding shoe lining plates;
The first liquid pressure-bearing groove and the second liquid pressure-bearing groove are arranged on two parallel side surfaces of the sliding shoe, the first liquid flow channel outlet is communicated with the first liquid pressure-bearing groove, the second liquid flow channel outlet is communicated with the second liquid pressure-bearing groove, the cross-sectional dimension of the first liquid pressure-bearing groove is larger than that of the first liquid flow channel outlet, the cross-sectional dimension of the second liquid pressure-bearing groove is larger than that of the second liquid flow channel outlet, and the surfaces of the first liquid pressure-bearing groove and the second liquid pressure-bearing groove are slightly lower than the planes of two sides of the sliding shoe;
The hydraulic pressure-bearing groove comprises a first multistage pressure-bearing groove and a second multistage pressure-bearing groove which are arranged on two parallel sides of the sliding shoe, wherein the first liquid flow channel outlet is communicated with the first multistage pressure-bearing groove, the second liquid flow channel outlet is communicated with the second multistage pressure-bearing groove, the cross-sectional dimension of the first multistage pressure-bearing groove is larger than that of the first liquid flow channel outlet, the cross-sectional dimension of the second multistage pressure-bearing groove is larger than that of the second liquid flow channel outlet, the surfaces of the first multistage pressure-bearing groove and the second multistage pressure-bearing groove are slightly lower than the planes of the two sides of the sliding shoe, the first multistage pressure-bearing groove and the second multistage pressure-bearing groove respectively comprise a basic pressure-bearing groove and a plurality of auxiliary pressure-bearing grooves, the basic pressure-bearing groove is arranged in the center of the two parallel sides of the sliding shoe, the bottom of the basic pressure-bearing groove is communicated with the first liquid flow channel outlet or the second liquid flow channel outlet, the plurality of auxiliary pressure-bearing grooves are respectively arranged on the periphery of the basic pressure-bearing groove, and the plurality of auxiliary pressure-bearing grooves encircle the periphery of the basic pressure-bearing groove in sequence;
the liquid pressure-bearing groove is a circular groove or a rectangular groove;
Further, the liquid suction device also comprises a cooling channel, a throttling step is arranged in the liquid inlet hole, and liquid in the liquid inlet hole enters the liquid suction working chamber and the cooling channel after being throttled by the throttling surface; the inlet of the cooling channel is communicated with the liquid inlet, and the cooling liquid which is shunted from the liquid inlet sequentially enters the cavity formed by the lower end of the cylinder body, the upper end of the main shaft and the upper end of the main shaft bracket through the cylinder cover shunting channel and the cylinder body shunting channel to form a liquid collecting tank, and then sequentially flows back into the liquid inlet through the main shaft bracket reflux slot, the cylinder body reflux channel and the cylinder cover reflux channel to be sucked into a liquid suction working chamber;
Furthermore, PEEK coating layers are arranged on the outer spherical surface of the piston and the rotary table, the outer cylindrical surface of the piston shaft and the semi-cylindrical surface of the piston pin seat, the material of the sliding shoe lining plate is PEEK, a cylinder body sleeve is arranged at the part of the main shaft matched with the lower end of the cylinder body, the cylinder body sleeve is made of PEEK material, and cooling grooves which are penetrated along the axial direction are arranged on the inner cylindrical surface and the outer cylindrical surface of the cylinder body sleeve.
The invention has the advantages of eliminating unbalanced force caused by asymmetric compression of two working chambers in the rotating process of a rotor, arranging smaller static pressure support force on the sliding shoe, obtaining larger balanced force on the turntable due to leverage, ensuring uniform clearance among the spherical surface of the piston, the spherical surface of the turntable and the spherical cavity, reducing friction loss and friction force, simultaneously reducing friction force between the sliding shoe and the sliding chute, eliminating unbalanced force in the running process of the spherical pump, ensuring clearance between the matching surfaces, reducing power consumption of the spherical pump, improving good cooling and lubrication conditions, prolonging failure time of parts, and being applicable to the oil pump and the water pump.
Drawings
FIG. 1 is a schematic diagram of a spherical pump configuration;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a sectional view B-B in FIG. 1;
FIG. 4 is a schematic diagram of a cylinder cover structure;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 4;
FIG. 6 is a schematic diagram of a cylinder structure;
FIG. 7 is a sectional view taken along line D-D of FIG. 6;
FIG. 8 is a schematic diagram of a spindle configuration;
FIG. 9 is a cross-sectional view E-E of FIG. 8;
FIG. 10 is a schematic view of a spindle carrier structure;
FIG. 11 is a sectional view H-H of FIG. 10;
FIG. 12 is a cross-sectional view F-F of FIG. 10;
FIG. 13 is a schematic diagram of a piston structure;
FIG. 14 is a sectional view taken along line L-L of FIG. 13;
FIG. 15 is a schematic diagram of a turntable structure;
FIG. 16 is a sectional view of K-K of FIG. 15;
FIG. 17 is a perspective view of the turntable structure;
FIG. 18 is a perspective view of a piston structure;
FIG. 19 is a schematic diagram of a skid shoe structure in which the multistage liquid pressure-bearing grooves are rectangular pressure-bearing grooves;
FIG. 20 is a cross-sectional view M-M of FIG. 19;
FIG. 21 is a schematic diagram of a slipper construction with a multi-stage liquid bearing groove being a circular bearing groove;
FIG. 22 is a cross-sectional view N-N of FIG. 21;
In the figure, a 1-cylinder cover, a 2-piston, a 3-center pin, a 4-turntable, a 5-cylinder, a 6-main shaft, a 7-main shaft bracket, an 8-bearing, a 9-sealing ring, a 10-slipper liner plate and an 11-cylinder sleeve are arranged;
101-liquid inlet holes, 102-liquid discharge holes, 103-cylinder cover diversion channels, 104-piston shaft holes, 105-liquid inlet kidney-shaped holes, 106-liquid discharge kidney-shaped holes, 107-cylinder cover backflow channels and 108-chip removal grooves;
201-piston matrix 202-piston PEEK coating;
401-a turntable substrate, 402-a turntable PEEK coating, 403-a shoe, 404-a first flow channel, 4041-a first flow channel inlet, 4042-a first flow channel outlet, 405-a second flow channel, 4051-a second flow channel inlet, 4052-a second flow channel outlet, 406-a first liquid bearing groove, 407-a second liquid bearing groove, 408-a first multi-stage rectangular groove, 409-a second multi-stage rectangular groove, 410-a first multi-stage circular groove, 411-a second multi-stage circular groove;
501-cylinder shunt channel, 502-cylinder reflux channel;
601-chute, 602-spindle overflow hole, 701-spindle bracket reflux slot and 1001-working chamber.
Detailed Description
As shown in fig. 1 to 3, the spherical pump in this patent comprises a cylinder cover 1, a piston 2, a rotary disk 4, a cylinder body 5, a main shaft 6, a main shaft support 7 and the like, wherein the cylinder body 5 and the cylinder cover 1 are provided with hemispherical inner cavities, the cylinder body 5, the cylinder cover 1 and the main shaft support 7 are sequentially connected through screws to form a spherical pump shell with the spherical inner cavities, namely a spherical pump stator, the piston 2, the rotary disk 4 and the main shaft 6 are sequentially connected to form a spherical pump rotor, the main shaft support 7 is used as a rotary support of the main shaft 6, the main shaft support 7 is fixedly connected to the lower end of the cylinder body 5 through screws, the piston 2 and the rotary disk 4 are hinged through a center pin 3, a piston shaft is inserted into a piston shaft hole 104 in the cylinder cover 1, and a sliding shoe 403 at the lower end of the rotary disk shaft is inserted into a sliding groove 601 at the upper end of the main shaft 6.
As shown in fig. 4 and 5, a liquid inlet hole 101 and a liquid outlet hole 102 are formed in the upper end face of the cylinder cover 1, a liquid inlet waist-shaped hole 105, a liquid outlet waist-shaped hole 106 and a piston shaft hole 104 are formed in the inner spherical face of the cylinder cover 1, the axis of the piston shaft hole 104 passes through the spherical center of the inner spherical face of the cylinder cover, the orifices of the liquid inlet waist-shaped hole 105 and the liquid outlet waist-shaped hole 106 on the inner spherical face of the cylinder cover 1 are respectively arranged in an annular space perpendicular to the axis of the piston shaft hole 104, the liquid inlet waist-shaped hole 105 is communicated with the liquid inlet hole 101 at the upper end of the cylinder cover 1, and the liquid outlet waist-shaped hole 106 is communicated with the liquid outlet hole 102 at the upper end of the cylinder cover 1. The liquid feeding and discharging control is realized through the rotation of the piston 2, and when liquid discharging or liquid feeding is needed in each working chamber, the corresponding working chamber is communicated with the liquid feeding kidney-shaped hole 105 or the liquid discharging kidney-shaped hole 106. In order to prevent the abrasive dust generated when the piston shaft rotates in the piston shaft hole 104 from entering between the spherical surface of the piston and the inner spherical surface of the cylinder cover 1, a chip removing groove 108 is arranged on the inner spherical surface of the cylinder cover 1, one end of the chip removing groove 108 is communicated with the liquid inlet kidney-shaped hole 105, the other end of the chip removing groove 108 extends along the inner spherical surface of the cylinder cover towards the direction of the piston shaft hole 104 and extends to the vicinity of an orifice of the piston shaft hole 104, the cross section of the chip removing groove 108 is U-shaped, a U-shaped opening is positioned on the inner spherical surface of the cylinder cover 1, the size of the cross section (namely the depth and the width of a liquid discharging groove) is based on the principle that the spherical pump does not leak, and the chip removing groove 108 can be communicated with the piston shaft hole 104 or not communicated with the piston shaft hole 104, so that the abrasive dust discharged from the piston shaft hole 104 gathers in the chip removing groove 108 and enters the working chamber 1001 to follow the liquid to be discharged out of the cylinder.
As shown in fig. 6 and 7, a rotary disc shaft passing hole penetrating through the outside of the cylinder is formed in the lower end of the cylinder 5, the size of the hole is used for ensuring that the rotary disc shaft does not interfere with the cylinder 5 in the rotating process of the rotary disc 4, a cylinder sleeve 11 is arranged at the matched part of the main shaft 6 and the lower end of the cylinder 5, a cylinder sleeve hole is formed in the lower end of the cylinder 5, the cylinder sleeve 11 is arranged in the cylinder sleeve hole and used for rotating an upper end rotating support (equivalent to a sliding bearing) of the main shaft 6 when the main shaft 6 rotates, the axis of the cylinder sleeve hole and the axis of the cylinder sleeve 11 coincide with the axis of the main shaft 6, the inner diameter of the cylinder sleeve 11 is matched with the journal at the upper end of the main shaft 6 through the spherical center of the cylinder, the outer diameter of the cylinder sleeve 11 is matched with the inner diameter of the cylinder sleeve hole, the cylinder sleeve 11 is made of PEEK, and through cooling grooves are formed in the outer cylinder and inner cylinder surfaces of the cylinder sleeve 11 in the axial direction and used for cooling and lubricating the main shaft 6 and the cylinder sleeve 11 through cooling liquid.
As shown in figures 13 to 14, the piston 2 is provided with a spherical top surface, two side surfaces with a certain angle and a piston pin seat at the lower part of the two side surfaces, a piston shaft is protruded in the center of the spherical top surface of the piston 2, the axis of the piston shaft passes through the sphere center of the spherical top surface of the piston, the piston shaft is inserted into a piston shaft hole 104 on the inner spherical surface of the cylinder cover 1, the spherical top surface of the piston and the spherical inner cavity are provided with the same sphere center and form sealed movable fit, the piston pin seat is of a semi-cylindrical structure, a through piston pin hole is arranged on the central axis of the semi-cylinder, a starting gear is arranged on the piston pin seat at the lower part of the piston 2, a semi-cylindrical groove is formed, the starting gear of the piston 2 is positioned in the middle of the piston pin seat and is perpendicular to the axis of the piston pin hole of the piston pin seat, the starting gear width of the piston 2 is matched with the width of the protruding semi-cylindrical body of the turntable pin seat, in practical production, a PEEK layer, namely a PEEK coating 202 is coated on a stainless steel metal matrix, namely the piston matrix 201 in an injection molding mode, and the outer circle of the piston sphere and the two side surfaces of the piston seat are ensured, the bottom surfaces of the semi-cylindrical surface and the bottom surface of the piston seat are provided with good friction resistance and corrosion resistance, and good friction resistance, and corrosion resistance to the friction resistance to the piston pin surface and the piston pin seat are formed with the piston.
As shown in figures 15 to 18, the turntable 4 is provided with a turntable pin seat corresponding to the piston pin seat at the upper part, a turntable shaft is protruded at the center of the lower end of the turntable 4, the turntable shaft passes through the spherical center of the turntable spherical surface, a sliding shoe 403 is arranged at the end part of the turntable shaft, the outer circumferential surface between the upper part and the lower end surface of the turntable 4 is the turntable spherical surface, the turntable spherical surface and the spherical cavity have the same spherical center and are tightly adhered to the spherical cavity to form a sealing movable fit, the two ends of the turntable pin seat are semi-cylindrical grooves, the middle part is a protruding semi-cylinder, a through turntable pin hole is arranged at the center of the semi-cylinder, a center pin 3 is inserted into a pin hole formed by matching the turntable pin seat and the piston pin seat to form a cylindrical hinge, sealing movable fit is formed between the two ends of the cylindrical hinge and the spherical cavity, the piston 2 and the turntable 5 form a sealing movable fit through the cylindrical hinge, and the two ends of the center pin 3 are provided with arc inserts made of PEEK material, and the shape of the arc is matched with the shape of the spherical cavity. In actual production, the turntable 4 is formed by coating a PEEK layer, namely a turntable PEEK coating 402, on a stainless steel metal substrate, namely a turntable substrate 401 in an injection molding mode, so that PEEK is ensured as surface coatings on two parallel side surfaces of the turntable spherical surface, the sliding shoes 403 and the sliding grooves 601, and a steel and PEEK friction pair is formed on a moving part. The two ends of the center pin 3 are arc surfaces, the cylindrical surface material of the matched part of the center pin 3 and the pin seat of the piston pin seat and the pin hole of the turntable is PEEK, and in order to ensure the strength of the center pin 3, the center pin 3 is coated with a layer of PEEK material on a steel substrate.
As shown in fig. 8 to 12, a spindle bracket 7 is fixed at the lower end of a cylinder body 5 through screws, a spindle 6 is connected at the lower end of the cylinder body 5 through the spindle bracket 7, a rectangular chute 601 is arranged on the upper end face of the spindle 6, the section size of the chute 601 is matched with the thickness size between two parallel side faces of a sliding shoe 403 on a rotary table 4, a rotary table shaft extends out of the lower end of the cylinder body 5, the sliding shoe 403 is inserted into the chute 601 at the upper end of the spindle 6, the two mutually parallel side faces of the sliding shoe 403 are jointed with the two side faces of the chute 601 to form sliding fit, a bearing 8 and a sealing ring 9 are arranged at the part of the lower end of the spindle 6 matched with the spindle bracket 7, a spindle bracket reflux groove 701 is arranged on the hole wall of the spindle bracket 7, the spindle bracket reflux groove 701 is communicated with a cylinder body reflux channel 502 on the lower end face of the cylinder body 5, a spindle overflow hole 602 is arranged on the bottom face of the chute 601, the spindle overflow hole 602 is used for introducing liquid at the upper end of the spindle 6 into a gap (more than the sealing ring 9) of a matched part of a journal at the lower end of the spindle 6 and the spindle bracket 7, and then the spindle bracket reflux is matched with the two side faces of the chute 601, a spherical pump 7 is provided for driving a power mechanism to rotate, and a spherical pump is connected with the lower end of the spindle bracket 7.
The cylinder head 1 is provided with a cylinder head diversion channel 103 and a cylinder head backflow channel 107, the cylinder body 5 is provided with a cylinder head diversion channel 501 and a cylinder head backflow channel 502, the upper end of the cylinder head diversion channel 103 and the upper end of the cylinder head backflow channel 107 are respectively communicated with the liquid inlet 101, the lower ends of the cylinder head diversion channel 103 and the cylinder head backflow channel 107 are arranged on the flange surface of the lower end of the cylinder head 1, the upper ends of the cylinder head diversion channel 501 and the cylinder head backflow channel 502 are arranged on the flange surface of the upper end of the cylinder body 5, the lower end of the cylinder head diversion channel 103 is communicated with the upper end of the cylinder head diversion channel 501, the upper end of the cylinder body backflow channel 502 is communicated with the lower end of the cylinder head backflow channel 107, the lower end of the cylinder body backflow channel 502 is communicated with the main shaft bracket backflow groove 701, a throttling step is arranged in the liquid inlet 101, liquid in the cylinder head backflow channel 101 is mainly enters the liquid suction working chamber 1001 after being throttled by the throttling surface, a small part of the liquid in the cooling channel enters the cooling channel, the cylinder head diversion channel 103, the cylinder head diversion channel 501, the liquid collecting tank, the main shaft bracket backflow groove 701, the cylinder head backflow channel 502 and the cylinder head backflow channel 107 are sequentially communicated with the upper end of the cylinder head backflow channel 7, and the main shaft bracket 701 are sequentially formed, and the main shaft backflow channel is sequentially connected with the main shaft bracket 7 is sequentially and the main shaft backflow channel 7 is sequentially sucked into the main shaft bracket 7 through the cooling channel 7, and the main shaft backflow channel is sequentially formed through the inlet end of the inlet port 7, and the main shaft backflow channel is sequentially connected with the main body circulation channel.
The axes of the piston shaft hole 104 and the turntable shaft pass through the sphere center of the spherical inner cavity, the included angles between the axes of the piston shaft hole 104 and the turntable shaft and the axis of the spindle 6 are alpha, the two parallel side surfaces of the sliding shoes 403 are symmetrically arranged at the two sides of the turntable axis and are parallel to the axis of the cylindrical hinge, when the spindle 6 rotates to drive the turntable 4 and the piston 2, the sliding shoes 403 slide back and forth in the sliding grooves 601, the piston 2 and the turntable 4 swing relatively, two working chambers 1001 with alternating volumes are formed between the upper end surface of the turntable 4, the two side surfaces of the piston 2 and the spherical inner cavity, when one working chamber 1001 absorbs liquid, the other working chamber 1001 compresses and discharges liquid, the spindle 6 rotates once around the axis of the piston shaft hole 104, the piston 2 swings once around the axis of the center pin 3 relative to the turntable 4, meanwhile, the sliding shoes 403 of the turntable 4 swing once in the sliding grooves 601 in the spindle 6, the swing is 2 alpha, and the two working chambers 1001 respectively generate a complete liquid absorption or compression and liquid discharge process once.
As shown in fig. 2,3, 15 to 18, a hydrostatic support is provided between the two parallel sides of the shoe 403 of the turntable 4 and the runner 601, the hydrostatic support including a first fluid flow channel 404, a second fluid flow channel 405 provided on the turntable 4, and fluid bearing grooves provided on the two parallel sides of the shoe 403, the fluid bearing grooves including a first fluid bearing groove 406 and a second fluid bearing groove 407 provided on the two parallel sides of the shoe 403.
A first fluid channel 404 and a second fluid channel 405 are arranged in the turntable 4, the first fluid channel 404 comprises a first fluid channel inlet 4041, a first channel and a first fluid channel outlet 4042, the first fluid channel inlet 4041 is arranged on the upper end surface of the turntable 4 and is communicated with one working chamber 1001, the first fluid channel outlet 4042 is arranged on one of two parallel sides of the sliding shoe 403, the first fluid channel inlet 4041 and the first fluid channel outlet 4042 are respectively positioned on two sides of the turntable axis parallel to the two parallel sides of the sliding shoe 403 (the planes are parallel to the two parallel sides of the sliding shoe 403 and pass through the spherical center of the turntable), the second fluid channel 405 comprises a second fluid channel inlet 4051, a second channel and a second fluid channel outlet 4052, the second fluid channel inlet 4051 is arranged on the upper end surface of the turntable 4 and is communicated with the other working chamber 1001, the second fluid channel outlet 4052 is arranged on the other side of the two parallel sides of the sliding shoe 403, the second fluid channel inlet 4051 and the second fluid channel outlet 5052 are respectively positioned on two opposite sides of the sliding shoe axis parallel to the two parallel sides of the sliding shoe 403 and pass through the spherical center of the turntable 4. In order to facilitate processing and reduce friction force between the sliding shoe 403 and the sliding groove 601, a sliding shoe lining board 10 is arranged between two parallel side surfaces of the sliding shoe 403 and the side surface of the sliding groove 601, the sliding groove lining board 10 is in a PEEK plate shape, the sliding groove lining board 10 is two pieces, the sliding groove lining board 10 is respectively arranged at two sides of the parallel side surfaces of the sliding shoe 403, one side of the sliding groove lining board 10 is attached to the side surface of the sliding groove 601, the other side of the sliding groove lining board 10 is attached to one side of the parallel side surface of the sliding shoe 403, the sliding groove lining board 10 can be integrally processed after being fixed with the sliding groove 601, the two side surfaces of the sliding groove lining board 10 are attached to the two side surfaces of the sliding shoe 403 during processing, gaps are controlled, and the two side surfaces of the sliding shoe 403 which are parallel to the sliding shoe lining board 10 are attached to the two side surfaces of the sliding shoe lining board 10 to slide reciprocally in the sliding groove 601.
The two parallel sides of the sliding shoe 403 are respectively provided with a first liquid pressure-bearing groove 406 and a second liquid pressure-bearing groove 407, the first liquid flow channel outlet 4042 is communicated with the first liquid pressure-bearing groove 406, the second liquid flow channel outlet 4052 is communicated with the second liquid pressure-bearing groove 407, and the flow area of the first liquid flow channel outlet 4042 and the second liquid flow channel outlet 4052 is reduced as much as possible, so that the liquid flow rate of the hydrostatic support is controlled, the drop of the apparent capacity efficiency is avoided, the cross section size of the first liquid pressure-bearing groove 406 is far larger than the cross section size of the first liquid flow channel outlet 4042, the cross section size of the second liquid pressure-bearing groove 407 is far larger than the cross section size of the second liquid flow channel outlet 4052, and the surfaces of the first liquid pressure-bearing groove 406 and the second liquid pressure-bearing groove 407 are slightly lower than the plane on two sides of the sliding shoe 403, and are generally lower than 1 millimeter. The diameters of the first fluid flow channel outlet 4042 and the second fluid flow channel outlet 4052 are generally selected to be 0.3 to 3mm, and the cross-sectional areas of the first fluid pressure-receiving groove 406 and the second fluid pressure-receiving groove 407 are as large as possible, at least 10 times or more, in order to increase the fluid supporting force of the hydraulic support.
When the spherical pump works, when the working chamber 1001 communicated with the first liquid flow channel 404 is at high pressure, the whole rotor is pressed unidirectionally towards the side (the side where the low-pressure working chamber 1001 is positioned) of the sliding shoe 403, so that the gap between the side surface of the sliding shoe 403 provided with the first liquid pressure groove 406 and the sliding shoe lining plate 10 in the matched sliding groove 601 is reduced, meanwhile, the gap between the spherical surface of the turntable and the spherical cavity of the rotor, which is positioned on the side where the first liquid pressure groove 406 is arranged, is correspondingly reduced, the friction force between the side surface of the sliding shoe provided with the first liquid pressure groove 406 and the sliding shoe lining plate 10 is increased, and the friction force between the spherical surface of the turntable and the spherical cavity is increased, but because high-pressure liquid in the first liquid flow channel 404 enters the first liquid pressure groove 406 at the moment, larger hydraulic pressure is generated in the first liquid pressure groove 406 and acts between the side surface of the sliding shoe 403 and the sliding shoe lining plate 10 as static pressure support, the gap between the side surface of the sliding shoe 403 and the spherical cavity of the sliding shoe lining plate 10 is balanced, the friction force between the spherical surface of the sliding shoe 406 and the spherical cavity of the spherical pump is reduced, and the spherical pump is designed to be normal, and the friction force between the spherical surface and the spherical surface of the spherical pump is reduced, and the spherical pump is designed to be normally running.
Similarly, when the working chamber 1001 connected to the second fluid passage 405 is at high pressure, the whole rotor is pressed in one direction toward the side of the sliding shoe 403 where the second fluid bearing groove 407 is provided (the side of the working chamber 1001 at low pressure), so that the gap between the side of the sliding shoe 403 where the second fluid bearing groove 407 is provided and the sliding shoe lining plate 10 in the matched sliding groove 601 becomes smaller, and at the same time, the gap between the spherical surface of the turntable and the spherical cavity on the side of the sliding shoe where the second fluid bearing groove 407 is provided and the spherical cavity correspondingly becomes smaller, the friction force between the side of the sliding shoe where the second fluid bearing groove 407 is provided and the sliding shoe lining plate 10 increases, and the friction force between the spherical surface of the turntable and the spherical cavity increases;
The spherical pump is operated periodically, the two working chambers 1001 alternately generate high pressure, the first liquid flow channel 404 and the second liquid flow channel 405 are alternately communicated with the working chambers 1001 with high pressure, unbalance force generated during operation of the rotor is balanced continuously, and gaps between working surfaces are adjusted, so that friction force between the matching surfaces during operation of the spherical pump is reduced, power consumption of the spherical pump is reduced, and normal service working time of the spherical pump is prolonged.
In this patent, the shape of the liquid bearing groove may be rectangular, circular or other shape, and is disposed at the center of each of the two parallel sides of the slipper 403; the liquid pressure-bearing groove can also be designed into a multi-stage pressure-bearing groove, namely a multi-stage liquid pressure-bearing groove, and the multi-stage liquid pressure-bearing groove can also be a multi-stage circular groove or a multi-stage rectangular groove; the multistage pressure-bearing groove comprises a first multistage pressure-bearing groove and a second multistage pressure-bearing groove which are arranged in the center of two parallel side surfaces of the sliding shoe 403, the first liquid flow channel outlet 4042 is communicated with the first multistage pressure-bearing groove, the second liquid flow channel outlet 4052 is communicated with the second multistage pressure-bearing groove, the cross-sectional size of the first multistage pressure-bearing groove is larger than that of the first liquid flow channel outlet 4042, the cross-sectional size of the second multistage pressure-bearing groove is larger than that of the second liquid flow channel outlet 4052, and the surfaces of the first multistage pressure-bearing groove and the second multistage pressure-bearing groove are slightly lower than the planes of two sides of the sliding shoe 403; the first multistage pressure-bearing groove and the second multistage pressure-bearing groove each comprise a basic pressure-bearing groove and a plurality of auxiliary pressure-bearing grooves, the basic pressure-bearing grooves are arranged in the center of two parallel sides of the sliding shoe 403, the first liquid flow channel outlet 4042 is arranged at the bottom of the basic pressure-bearing groove, so that the first liquid flow channel 404 is communicated with the first multistage pressure-bearing groove, the second liquid flow channel outlet 4052 is arranged at the bottom of the basic pressure-bearing groove, so that the second liquid flow channel 405 is communicated with the second multistage pressure-bearing groove, the plurality of auxiliary pressure-bearing grooves are respectively arranged at the periphery of the basic pressure-bearing groove, the plurality of auxiliary pressure-bearing grooves are sequentially arranged around the periphery of the basic pressure-bearing groove, the high-pressure liquid in the basic pressure-bearing groove is subjected to main hydraulic force, the high-pressure liquid in the basic pressure-bearing groove overflows and leaks into the peripheral adjacent auxiliary pressure-bearing grooves through the plane fit clearance part of the sliding shoe liner 10 and the side plane of the sliding shoe 403, the sliding shoes 403 of the high-pressure liquid in the auxiliary pressure bearing grooves also play a role in static pressure support, the support area is increased, the liquid in the auxiliary pressure bearing grooves overflows and leaks into the peripheral adjacent auxiliary pressure bearing grooves, the liquid sequentially flows outwards from the basic pressure bearing grooves to each stage of auxiliary pressure bearing grooves, the pressure of the liquid in the multistage pressure bearing grooves is gradually reduced, the liquid quantity is gradually reduced, the multistage pressure bearing grooves have the advantages that the pressure of the basic pressure bearing groove positioned in the center of the ring is ensured to be maximum, the liquid flow introduced from the high-pressure working chamber is effectively utilized, the static pressure support force of the liquid is stable and distributed uniformly, and the static pressure support effect is better.
As shown in fig. 19 to 20, the first multistage pressure-bearing groove and the second multistage pressure-bearing groove are rectangular grooves, that is, the first multistage pressure-bearing groove is a first multistage rectangular groove 408, the second multistage pressure-bearing groove is a second multistage rectangular groove 409, the first multistage rectangular groove 408 and the second multistage rectangular groove 409 are respectively arranged on two parallel sides of the slipper 403, the first fluid channel outlet 4042 is arranged at the bottom of the basic pressure-bearing groove of the first multistage rectangular groove 408, so that the first multistage rectangular groove 408 is communicated with the first fluid channel 404, the second fluid channel outlet 4052 is arranged at the bottom of the basic pressure-bearing groove of the second multistage rectangular groove 409, so that the second multistage rectangular groove 409 is communicated with the second fluid channel 405.
As shown in fig. 20 to 21, the first multi-stage pressure-bearing groove and the second multi-stage pressure-bearing groove are circular grooves, that is, the first multi-stage pressure-bearing groove is a first multi-stage circular groove 410, the second multi-stage pressure-bearing groove is a second multi-stage circular groove 411, the first multi-stage circular groove 410 and the second multi-stage circular groove 410 are respectively arranged on two parallel sides of the slipper 403, the first fluid channel outlet 4042 is arranged at the bottom of the basic pressure-bearing groove of the first multi-stage circular groove 410, so that the first multi-stage circular groove 410 is communicated with the first fluid channel 404, and the second fluid channel outlet 4052 is arranged at the bottom of the basic pressure-bearing groove of the second multi-stage circular groove 411, so that the second multi-stage circular groove 410 is communicated with the second fluid channel 405.
In order to simplify the processing technology, the first flow channel 404 and the second flow channel 405 can be formed by combining several sections of straight channels, when the first flow channel 404 is processed, firstly, a hole is drilled downwards from the position of the first flow channel inlet 4041 positioned on the upper end surface of the turntable 4 at a certain angle, then a hole is drilled upwards from the lower end part of the sliding shoe 403 to be communicated with the hole, then a first flow channel outlet hole 4042 is drilled and milled from the bottom of a liquid pressure-bearing groove on the side surface of the sliding shoe 403 to be communicated with the hole, finally, the hole on the lower end part of the sliding shoe 403 is plugged, and the second flow channel 405 is processed in the same method, firstly, a hole is drilled downwards from the position of the second flow channel inlet 4051 positioned on the upper end surface of the turntable 4 at a certain angle to be communicated with the hole, then a second flow channel outlet hole 4052 is drilled and milled from the bottom of the liquid pressure-bearing groove on the side surface of the sliding shoe 403 to be communicated with the hole, and finally, the hole on the lower end part of the sliding shoe 403 is plugged.

Claims (8)

1.一种带有静压支撑的球形泵，它包括：1. A spherical pump with hydrostatic support, comprising: 缸体（5），该缸体（5）具有半球形内腔，在缸体（5）上设置有贯通缸外的转盘轴过孔；A cylinder body (5), the cylinder body (5) having a hemispherical inner cavity, and a turntable shaft through hole penetrating the outside of the cylinder is provided on the cylinder body (5); 缸盖（1），该缸盖（1）具有半球形内腔，该缸盖（1）的下端与所述缸体（5）的上端固定连接形成一球形内腔，在该缸盖（1）的内球面上设置有活塞轴孔（104）、进液腰形孔（105）和排液腰形孔（106），进液腰形孔（105）和排液腰形孔（106）的孔口分别布置在缸盖（1）内球面上垂直于活塞轴孔（104）轴线的环形空间内，进液腰形孔（105）与缸盖（1）上端的进液孔（101）连通，排液腰形孔（106）与缸盖（1）上端的排液孔（102）连通；A cylinder head (1), the cylinder head (1) having a hemispherical inner cavity, the lower end of the cylinder head (1) being fixedly connected to the upper end of the cylinder body (5) to form a spherical inner cavity, a piston shaft hole (104), a liquid inlet waist-shaped hole (105) and a liquid discharge waist-shaped hole (106) being arranged on the inner spherical surface of the cylinder head (1), the openings of the liquid inlet waist-shaped hole (105) and the liquid discharge waist-shaped hole (106) being respectively arranged in an annular space on the inner spherical surface of the cylinder head (1) perpendicular to the axis of the piston shaft hole (104), the liquid inlet waist-shaped hole (105) being connected to the liquid inlet hole (101) at the upper end of the cylinder head (1), and the liquid discharge waist-shaped hole (106) being connected to the liquid discharge hole (102) at the upper end of the cylinder head (1); 活塞（2），该活塞（2）具有球形顶面、两个成一定角度的侧面和在两侧面下部的活塞销座，在活塞（2）的球形顶面中央凸出一活塞轴，活塞轴的轴线通过活塞球形顶面的球心；所述活塞球形顶面与所述球形内腔具有相同的球心并形成密封动配合；A piston (2), the piston (2) having a spherical top surface, two side surfaces at a certain angle and a piston pin seat at the lower part of the two side surfaces, a piston shaft protruding from the center of the spherical top surface of the piston (2), and the axis of the piston shaft passing through the center of the spherical top surface of the piston; the spherical top surface of the piston and the spherical inner cavity have the same center and form a sealed dynamic fit; 转盘（4），该转盘（4）在其上部具有与活塞销座相对应的转盘销座；在转盘（4）的下端中心凸出一转盘轴，转盘轴通过转盘球面的球心，在转盘轴的端部固定设置有滑靴（403）；该转盘（4）上部和下端面之间的外周面为转盘球面，该转盘球面与所述球形内腔具有相同的球心并紧贴球形内腔形成密封动配合；A turntable (4), the turntable (4) having a turntable pin seat corresponding to the piston pin seat at its upper portion; a turntable shaft protruding from the center of the lower end of the turntable (4), the turntable shaft passing through the center of the turntable spherical surface, and a sliding shoe (403) fixedly arranged at the end of the turntable shaft; the outer peripheral surface between the upper and lower end surfaces of the turntable (4) is the turntable spherical surface, the turntable spherical surface and the spherical inner cavity have the same center and are tightly attached to the spherical inner cavity to form a sealed dynamic fit; 主轴（6）及主轴支架（7），该主轴（6）通过主轴支架（7）连接在缸体（5）的下端，主轴支架（7）与缸体（5）的下端固定连接，主轴支架（7）为主轴（6）的旋转提供支撑；主轴（6）的上端面上设置有滑槽（601）；主轴（6）的下端与动力机构连接；A main shaft (6) and a main shaft support (7), wherein the main shaft (6) is connected to the lower end of the cylinder body (5) via the main shaft support (7), the main shaft support (7) is fixedly connected to the lower end of the cylinder body (5), and the main shaft support (7) provides support for the rotation of the main shaft (6); a slide groove (601) is provided on the upper end surface of the main shaft (6); and the lower end of the main shaft (6) is connected to the power mechanism; 其中，所述活塞轴孔（104）和转盘轴的轴线都通过所述球形内腔的球心，活塞轴孔（104）的轴线与主轴（6）的轴线的形成一夹角；所述转盘销座和活塞销座相配形成柱面铰链，柱面铰链的各配合面之间形成密封动配合；转盘轴从缸体（5）的下端伸出后滑靴（403）插入主轴（6）上端的滑槽（601）内，滑靴（403）相互平行的两侧面与滑槽（601）的两侧面相贴合并形成滑动配合；所述滑靴（403）平行的两侧面对称布置在转盘轴线的两侧并与所述柱面铰链的轴线平行；主轴（6）旋转驱动转盘（4）和活塞（2）时，滑靴（403）在滑槽（601）内往复滑动，活塞（2）和转盘（4）相对摆动，在所述转盘（4）的上端面、所述活塞（2）的两侧面与所述球形内腔之间形成容积交替变化的两个工作室（1001）； 在滑靴（403）的两平行侧面与滑槽（601）之间设置有静压支撑；所述静压支撑包括设置在转盘（4）上的第一液流通道（404）、第二液流通道（405）以及设置在滑靴（403）两平行侧面上的液体承压槽，第一液流通道进口（4041）与其中一个工作室（1001）接通，第二液流通道进口（4051）与另一个工作室（1001）接通，第一液流通道出口（4042）和第二液流通道出口（4052）分别与滑靴（403）两平行侧面上的液体承压槽接通；The axes of the piston shaft hole (104) and the turntable shaft both pass through the center of the spherical inner cavity, and the axis of the piston shaft hole (104) forms an angle with the axis of the main shaft (6); the turntable pin seat and the piston pin seat match to form a cylindrical hinge, and a sealing dynamic fit is formed between the matching surfaces of the cylindrical hinge; after the turntable shaft extends from the lower end of the cylinder body (5), the sliding shoe (403) is inserted into the sliding groove (601) at the upper end of the main shaft (6), and the two parallel side surfaces of the sliding shoe (403) are aligned with the two sides of the sliding groove (601). The side surfaces are attached to each other and form a sliding fit; the two parallel side surfaces of the sliding shoe (403) are symmetrically arranged on both sides of the axis of the rotating disk and are parallel to the axis of the cylindrical hinge; when the main shaft (6) rotates to drive the rotating disk (4) and the piston (2), the sliding shoe (403) slides back and forth in the sliding groove (601), and the piston (2) and the rotating disk (4) swing relative to each other, forming two working chambers (1001) with alternating volumes between the upper end surface of the rotating disk (4), the two side surfaces of the piston (2) and the spherical inner cavity; A static pressure support is provided between two parallel sides of the sliding shoe (403) and the sliding groove (601); the static pressure support comprises a first liquid flow channel (404), a second liquid flow channel (405) and a liquid pressure bearing groove provided on two parallel sides of the sliding shoe (403); the first liquid flow channel inlet (4041) is connected to one of the working chambers (1001), the second liquid flow channel inlet (4051) is connected to the other working chamber (1001), and the first liquid flow channel outlet (4042) and the second liquid flow channel outlet (4052) are respectively connected to the liquid pressure bearing grooves on the two parallel sides of the sliding shoe (403); 第一液流通道进口（4041）和第一液流通道出口（4042）分别处于转盘（4）轴线所在的与滑靴（403）两平行侧面平行的平面两侧；第二液流通道进口（4051）和第二液流通道出口（4052）分别处于转盘（4）轴线所在的与滑靴（403）两平行侧面平行的平面两侧；The first liquid flow channel inlet (4041) and the first liquid flow channel outlet (4042) are respectively located on both sides of a plane parallel to the two parallel sides of the sliding shoe (403) where the axis of the rotating disk (4) is located; the second liquid flow channel inlet (4051) and the second liquid flow channel outlet (4052) are respectively located on both sides of a plane parallel to the two parallel sides of the sliding shoe (403) where the axis of the rotating disk (4) is located; 所述活塞销座为半圆柱结构，半圆柱的中部有凹槽，在半圆柱的中心轴线上设置有贯通的活塞销孔；所述转盘销座的两端为半圆柱凹槽，中部为凸起的半圆柱，在半圆柱的中心轴线上设置有贯通的转盘销孔；中心销（3）插入所述转盘销座和活塞销座相配所形成的销孔中形成柱面铰链；中心销（3）的两端为圆弧，该圆弧的形状与球形内腔的形状相适配。The piston pin seat is a semi-cylindrical structure, with a groove in the middle of the semi-cylinder, and a through piston pin hole is arranged on the central axis of the semi-cylinder; the two ends of the turntable pin seat are semi-cylindrical grooves, the middle is a raised semi-cylinder, and a through turntable pin hole is arranged on the central axis of the semi-cylinder; the center pin (3) is inserted into the pin hole formed by the matching of the turntable pin seat and the piston pin seat to form a cylindrical hinge; the two ends of the center pin (3) are arcs, and the shape of the arc is adapted to the shape of the spherical inner cavity. 2.根据权利要求1所述的一种带有静压支撑的球形泵，其特征是：所述第一液流通道进口（4041）设置在转盘（4）上端面与一个工作室（1001）接通，第一液流通道出口（4042）设置在滑靴（403）的两平行侧面的其中一个侧面上；所述第二液流通道进口（4051）设置在转盘（4）上端面与另一个工作室（1001）接通，第二液流通道出口（4052）设置在滑靴（403）的两平行侧面的另一个侧面上。2. A spherical pump with static pressure support according to claim 1, characterized in that: the first liquid flow channel inlet (4041) is arranged on the upper end surface of the turntable (4) and connected to a working room (1001), and the first liquid flow channel outlet (4042) is arranged on one of the two parallel side surfaces of the sliding shoe (403); the second liquid flow channel inlet (4051) is arranged on the upper end surface of the turntable (4) and connected to the other working room (1001), and the second liquid flow channel outlet (4052) is arranged on the other side of the two parallel side surfaces of the sliding shoe (403). 3.根据权利要求1所述的一种带有静压支撑的球形泵，其特征是：在滑靴（403）侧面与滑槽（601）贴合的侧面之间设置有滑靴衬板（10）；滑靴（403）平行的两侧面与两侧的滑靴衬板（10）贴合并在滑槽（601）内沿滑靴衬板（10）表面往复滑动。3. A ball pump with static pressure support according to claim 1, characterized in that: a slipper lining (10) is arranged between the side of the slipper (403) and the side of the slide groove (601) in contact with each other; the two parallel side surfaces of the slipper (403) are in contact with the slipper linings (10) on both sides and slide back and forth along the surface of the slipper lining (10) in the slide groove (601). 4.根据权利要求1所述的一种带有静压支撑的球形泵，其特征是：所述液体承压槽包括设置在滑靴（403）两平行侧面上的第一液体承压槽（406）和第二液体承压槽（407），第一液流通道出口（4042）与第一液体承压槽（406）接通，第二液流通道出口（4052）与第二液体承压槽（407）接通，第一液体承压槽（406）的截面尺寸大于第一液流通道出口（4042）的截面尺寸，第二液体承压槽（407）的截面尺寸大于第二液流通道出口（4052）的截面尺寸，第一液体承压槽（406）和第二液体承压槽（407）的表面略低于滑靴两侧平面。4. A spherical pump with static pressure support according to claim 1, characterized in that: the liquid pressure groove includes a first liquid pressure groove (406) and a second liquid pressure groove (407) arranged on two parallel sides of the sliding shoe (403), the first liquid flow channel outlet (4042) is connected to the first liquid pressure groove (406), the second liquid flow channel outlet (4052) is connected to the second liquid pressure groove (407), the cross-sectional size of the first liquid pressure groove (406) is larger than the cross-sectional size of the first liquid flow channel outlet (4042), the cross-sectional size of the second liquid pressure groove (407) is larger than the cross-sectional size of the second liquid flow channel outlet (4052), and the surfaces of the first liquid pressure groove (406) and the second liquid pressure groove (407) are slightly lower than the planes on both sides of the sliding shoe. 5.根据权利要求1所述的一种带有静压支撑的球形泵，其特征是：所述液体承压槽包括设置在滑靴（403）两平行侧面上的第一多级承压槽和第二多级承压槽，第一液流通道出口（4042）与第一多级承压槽接通，第二液流通道出口（4052）与第二多级承压槽接通，第一多级承压槽的截面尺寸大于第一液流通道出口（4042）的截面尺寸，第二多级承压槽的截面尺寸大于第二液流通道出口（4052）的截面尺寸，第一多级承压槽和第二多级承压槽的表面略低于滑靴（403）两侧平面；第一多级承压槽和第二多级承压槽均包括一个基本承压槽和多个辅助承压槽，基本承压槽设置在滑靴（403）两平行侧面的中央，基本承压槽的底部与第一液流通道出口（4042）或者第二液流通道出口（4052）接通，在基本承压槽的外周分别设置有多个辅助承压槽，多个辅助承压槽依次环绕在基本承压槽的外周。5. A spherical pump with static pressure support according to claim 1, characterized in that: the liquid pressure-bearing groove includes a first multi-stage pressure-bearing groove and a second multi-stage pressure-bearing groove arranged on two parallel sides of the sliding shoe (403), the first liquid flow channel outlet (4042) is connected to the first multi-stage pressure-bearing groove, the second liquid flow channel outlet (4052) is connected to the second multi-stage pressure-bearing groove, the cross-sectional size of the first multi-stage pressure-bearing groove is larger than the cross-sectional size of the first liquid flow channel outlet (4042), and the cross-sectional size of the second multi-stage pressure-bearing groove is larger than the cross-sectional size of the second liquid flow channel outlet (4052). ), the surfaces of the first multi-stage pressure-bearing groove and the second multi-stage pressure-bearing groove are slightly lower than the planes on both sides of the sliding shoe (403); the first multi-stage pressure-bearing groove and the second multi-stage pressure-bearing groove each include a basic pressure-bearing groove and a plurality of auxiliary pressure-bearing grooves, the basic pressure-bearing groove is arranged at the center of two parallel sides of the sliding shoe (403), the bottom of the basic pressure-bearing groove is connected to the first liquid flow channel outlet (4042) or the second liquid flow channel outlet (4052), and a plurality of auxiliary pressure-bearing grooves are respectively arranged on the periphery of the basic pressure-bearing groove, and the plurality of auxiliary pressure-bearing grooves are sequentially surrounded on the periphery of the basic pressure-bearing groove. 6.根据权利要求1所述的一种带有静压支撑的球形泵，其特征是：液体承压槽为圆形槽或者矩形槽。6. A spherical pump with static pressure support according to claim 1, characterized in that the liquid pressure-bearing groove is a circular groove or a rectangular groove. 7.根据权利要求1所述的一种带有静压支撑的球形泵，其特征是：还包括一冷却通道，在进液孔（101）内设置有节流台阶，进液孔（101）内的液体通过节流面节流后进入到吸液的工作室（1001）和冷却通道内；冷却通道的进口与进液孔（101）接通，从进液孔（101）分流来的冷却液依次经缸盖分流通道（103）、缸体分流通道（501）进入到缸体（5）下端、主轴（6）上端及主轴支架（7）上端所形成空腔形成集液池，再依次经主轴支架回流槽（701）、缸体回流通道（502）、缸盖回流通道（107）回流到进液孔（101）内并被吸入到吸液的工作室（1001）内。7. A spherical pump with a static pressure support according to claim 1, characterized in that: it also includes a cooling channel, a throttling step is arranged in the liquid inlet hole (101), and the liquid in the liquid inlet hole (101) enters the liquid suction working room (1001) and the cooling channel after being throttled by the throttling surface; the inlet of the cooling channel is connected to the liquid inlet hole (101), and the coolant diverted from the liquid inlet hole (101) enters the cavity formed by the lower end of the cylinder body (5), the upper end of the main shaft (6) and the upper end of the main shaft support (7) in turn through the cylinder head diversion channel (103) and the cylinder body diversion channel (501) to form a liquid collecting pool, and then flows back to the liquid inlet hole (101) through the main shaft support reflux groove (701), the cylinder body reflux channel (502) and the cylinder head reflux channel (107) in turn and is sucked into the liquid suction working room (1001). 8.根据权利要求1所述的一种带有静压支撑的球形泵，其特征是：在所述活塞（2）和转盘（4）的外球面、活塞轴的外圆柱面、活塞销座的半圆柱的圆柱面设置有PEEK覆层；滑靴衬板（10）的材料为PEEK；在主轴（6）与缸体（5）下端相配合的部分设置有缸体套（11），所述缸体套（11）采用PEEK材料，在缸体套（11）的内圆柱面和外圆柱面上设置有沿轴向贯通的冷却沟槽。8. A spherical pump with hydrostatic support according to claim 1, characterized in that: a PEEK coating is provided on the outer spherical surface of the piston (2) and the turntable (4), the outer cylindrical surface of the piston shaft, and the semi-cylindrical cylindrical surface of the piston pin seat; the material of the sliding shoe liner (10) is PEEK; a cylinder sleeve (11) is provided at the part where the main shaft (6) and the lower end of the cylinder (5) cooperate, and the cylinder sleeve (11) is made of PEEK material, and cooling grooves are provided on the inner cylindrical surface and the outer cylindrical surface of the cylinder sleeve (11) and extend through the cylinder in the axial direction.
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CN201911061558.XA CN110671319B (en) 2019-11-01 2019-11-01 A spherical pump with hydrostatic support
KR1020227014536A KR102653700B1 (en) 2019-11-01 2020-10-22 A spherical pump having a rotor static pressure support structure and a static pressure support structure.
PCT/CN2020/122673 WO2021083019A1 (en) 2019-11-01 2020-10-22 Spherical pump rotor static pressure support and spherical pump provided with static pressure support
EP20882813.7A EP4053411B1 (en) 2019-11-01 2020-10-22 Spherical pump with hydrostatic pressure support
JP2022550043A JP7430854B2 (en) 2019-11-01 2020-10-22 Spherical pump rotor static pressure support structure and spherical pump with static pressure support structure
US17/728,939 US11802560B2 (en) 2019-11-01 2022-04-25 Hydrostatic pressure support for spherical pump rotor and spherical pump with same

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