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US20190368492A1 - Co-rotating scroll compressor and method of assembling the same - Google Patents

Co-rotating scroll compressor and method of assembling the same Download PDF

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Publication number
US20190368492A1
US20190368492A1 US16/480,073 US201816480073A US2019368492A1 US 20190368492 A1 US20190368492 A1 US 20190368492A1 US 201816480073 A US201816480073 A US 201816480073A US 2019368492 A1 US2019368492 A1 US 2019368492A1
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US
United States
Prior art keywords
driving
driven
side wall
scroll
end plate
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.)
Abandoned
Application number
US16/480,073
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English (en)
Inventor
Hirofumi Hirata
Takahide Ito
Takuma YAMASHITA
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD. reassignment MITSUBISHI HEAVY INDUSTRIES, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HIRATA, HIROFUMI, ITO, TAKAHIDE, YAMASHITA, Takuma
Publication of US20190368492A1 publication Critical patent/US20190368492A1/en
Abandoned legal-status Critical Current

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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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C27/009—Shaft sealings specially adapted for 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • F04C18/0223—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving with symmetrical double wraps
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/023—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where both members are moving
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/604—Mounting devices for pumps or compressors
    • 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
    • F04C2240/40—Electric motor
    • 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
    • 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
    • F04C2240/80—Other components
    • F04C2240/805—Fastening means, e.g. bolts

Definitions

  • the present disclosure relates to a co-rotating scroll compressor and a method of assembling the same.
  • a co-rotating scroll compressor has been known (see PTL 1).
  • the co-rotating scroll compressor includes a driving-side scroll and a driven-side scroll that rotates in synchronization with the driving-side scroll, and causes a drive shaft causing the driving-side scroll to rotate and a driven-shaft supporting rotation of the driven-side scroll to rotate in the same direction at the same angular velocity while the driven-shaft is offset by a revolving radius from the drive shaft.
  • each rotation around different rotation axes of the driving-side scroll member and the driven-side scroll member makes it difficult to assemble the two scroll members into the housing.
  • the present disclosure is made in consideration of such circumstances, and an object of the present disclosure is to provide a co-rotating scroll compressor that facilitates assembly work and an assembly method thereof.
  • a co-rotating scroll compressor and an assembly method thereof according to the present disclosure adopt the following solutions.
  • a co-rotating scroll compressor includes: a driving-side scroll member that is rotationally driven by a driving unit and includes a spiral driving-side wall disposed on a driving-side end plate; a driven-side scroll member that includes a driven-side wall corresponding to the driving-side wall, the driven-side wall being disposed on a driven-side end plate and engaging with the driving-side wall to form a compression space; a synchronous driving mechanism that transmits driving force from the driving-side scroll member to the driven-side scroll member to cause the driving-side scroll member and the driven-side scroll member to perform rotational movement in a same direction at a same angular velocity; and a housing accommodating the driving-side scroll member, the driven-side scroll member and the synchronous driving mechanism, in which the driving-side scroll member includes a first driving-side scroll portion, a second driving-side scroll portion, and a wall fixing part, the first driving-side scroll portion including a first driving-side end plate and a first driving-side wall and being driven by
  • the driving-side wall disposed on the end plate of the driving-side scroll member is engaged with the corresponding driven-side wall of the driven-side scroll member.
  • the driving-side scroll member is rotationally driven by the driving unit, and the driving force transmitted to the driving-side scroll member is transmitted to the driven-side scroll member through the synchronous driving mechanism.
  • the driven-side scroll member rotates as well as performs rotational movement in the same direction at the same angular velocity with respect to the driving-side scroll member.
  • the co-rotating scroll compressor in which both of the driving-side scroll member and the driven-side scroll member rotate is provided.
  • the housing is provided with a hole accessible to the wall fixing part and/or the first support fixing part and/or the second support fixing part.
  • a tool can be inserted through this hole to access the wall fixing part and/or the first support fixing part and/or the second support fixing part.
  • the hole may also be used for access to the reference pin or positioning pin of each component incorporated in the housing, or for passing a stopper to prevent rotation of the scroll member during assembly, as another application.
  • the co-rotating scroll compressor includes a sealing body that seals the hole.
  • the sealing body is attached to the hole and sealed after the work is performed using the hole. Therefore, the housing can be closely sealed.
  • a plurality of the holes are provided.
  • the hole is provided at end part opposite to the end part that is openable of the housing.
  • each component When the end part of the housing is openable, each component may be inserted into the housing from the openable end part during assembly. However, it may be necessary to access each component after each component is inserted into the housing and assembled in the housing. Therefore, providing a hole at the end part opposite to the openable end part enables access to each component assembled in the housing.
  • the co-rotating scroll compressor including: a driving-side scroll member that is rotationally driven by a driving unit and includes a spiral driving-side wall disposed on a driving-side end plate; a driven-side scroll member that includes a driven-side wall corresponding to the driving-side wall, the driven-side wall being disposed on a driven-side end plate and engaging with the driving-side wall to form a compression space; a synchronous driving mechanism that transmits driving force from the driving-side scroll member to the driven-side scroll member to cause the driving-side scroll member and the driven-side scroll member to perform rotational movement in a same direction at a same angular velocity; and a housing accommodating the driving-side scroll member, the driven-side scroll member and the synchronous driving mechanism, in which the driving-side scroll member includes a first driving-side scroll portion, a second driving-side scroll portion, and a wall fixing part, the first driving-side scroll portion including a first
  • the housing is formed with the hole that allows access to the first support fixing part or the second support fixing part.
  • a tool can be inserted through the hole accessible to the first support fixing part or the second support fixing part.
  • the co-rotating scroll compressor including: a driving-side scroll member that is rotationally driven by a driving unit and includes a spiral driving-side wall disposed on a driving-side end plate; a driven-side scroll member that includes a driven-side wall corresponding to the driving-side wall, the driven-side wall being disposed on a driven-side end plate and engaging with the driving-side wall to form a compression space; a synchronous driving mechanism that transmits driving force from the driving-side scroll member to the driven-side scroll member to cause the driving-side scroll member and the driven-side scroll member to perform rotational movement in a same direction at a same angular velocity; and a housing accommodating the driving-side scroll member, the driven-side scroll member and the synchronous driving mechanism, in which the driving-side scroll member includes a first driving-side scroll portion, a second driving-side scroll portion, and a wall fixing part, the first driving-side scroll portion including a first
  • the housing is formed with the hole accessible to the wall fixing part.
  • a tool can be inserted through this hole to access to the wall fixing part.
  • the co-rotating scroll compressor including: a driving-side scroll member that is rotationally driven by a driving unit and includes a spiral driving-side wall disposed on a driving-side end plate; a driven-side scroll member that includes a driven-side wall corresponding to the driving-side wall, the driven-side wall being disposed on a driven-side end plate and engaging with the driving-side wall to form a compression space; a synchronous driving mechanism that transmits driving force from the driving-side scroll member to the driven-side scroll member to cause the driving-side scroll member and the driven-side scroll member to perform rotational movement in a same direction at a same angular velocity; and a housing accommodating the driving-side scroll member, the driven-side scroll member and the synchronous driving mechanism, in which the driving-side scroll member includes a first driving-side scroll portion, a second driving-side scroll portion, and a wall fixing part, the first driving-side scroll portion including a first driving-side end
  • the first driving-side scroll portion and the second driving-side scroll portion, the first support member and the second support member are integrated to form an assembly.
  • centering of both scroll members can be performed before being incorporated into the housing, so that both scroll members can be accurately assembled.
  • the hole and the sealing body described above become unnecessary, and the number of parts can be reduced.
  • a hole is provided in the housing to allow access to the driving-side scroll member and the support member. This can facilitate assembly.
  • FIG. 1 is a longitudinal sectional view showing a co-rotating scroll compressor according to an embodiment of the present disclosure.
  • FIG. 2A is a longitudinal sectional view showing a first process of an assembly of the co-rotating scroll compressor of FIG. 1 .
  • FIG. 2B is a longitudinal sectional view showing a second process of the assembly of the co-rotating scroll compressor of FIG. 1 .
  • FIG. 2C is a longitudinal sectional view showing a third process of the assembly of the co-rotating scroll compressor of FIG. 1 .
  • FIG. 2D is a longitudinal sectional view showing a fourth process of the assembly of the co-rotating scroll compressor of FIG. 1 .
  • FIG. 2E is a longitudinal sectional view showing a fifth process of the assembly of the co-rotating scroll compressor of FIG. 1 .
  • FIG. 3A is a longitudinal cross-sectional view showing a first process of assembly of the co-rotating scroll compressor according to the reference embodiment.
  • FIG. 3B is a longitudinal cross-sectional view showing a second process of the assembly of the co-rotating scroll compressor according to the reference embodiment.
  • FIG. 1 and FIG. 2 An embodiment of the present disclosure is described below with reference to FIG. 1 and FIG. 2 .
  • FIG. 1 illustrates a co-rotating scroll compressor (scroll compressor) 1 .
  • the co-rotating scroll compressor 1 can be used as, for example, a supercharger that compresses combustion air (fluid) to be supplied to an internal combustion engine such as a vehicle engine.
  • the co-rotating scroll compressor 1 includes a housing 3 , a motor (driving unit) 5 accommodated on one end side in the housing 3 , and a driving-side scroll member 70 and a driven-side scroll member 90 that are accommodated on the other end side in the housing 3 .
  • the housing 3 has a substantially cylindrical shape, and includes a motor accommodation portion 3 a that accommodates the motor 5 , and a scroll accommodation portion 3 b that accommodates the scroll members 70 and 90 .
  • a cooling fin 3 c to cool the motor 5 is provided on an outer periphery of the motor accommodation portion 3 a.
  • a discharge opening 3 d from which compressed air (working fluid) is discharged is provided at an end part of the scroll accommodation portion 3 b.
  • the housing 3 includes an air suction opening from which air (working fluid) is sucked in.
  • an access hole 3 b 1 that is a through hole is formed at an end part of the scroll accommodation portion 3 b.
  • the plurality of access holes 3 b 1 are provided, and are formed in accordance with the position of the object to be accessed.
  • the number of access holes 3 b 1 may be one.
  • a sealing bolt (sealing body) 40 for sealing is provided in the access hole 3 b 1 .
  • the sealing bolt 40 is attached after the assembly is completed.
  • the sealing bolt 40 may be omitted. In this case, the through hole by the access hole 3 b 1 remains open.
  • the motor 5 is driven by being supplied with power from an unillustrated power supply source. Rotation of the motor 5 is controlled by an instruction from an unillustrated control unit.
  • a stator 5 a of the motor 5 is fixed to an inner periphery of the housing 3 .
  • a rotor 5 b of the motor 5 rotates around a driving-side rotation axis CL 1 .
  • a driving shaft 6 that extends on the driving-side rotation axis CL 1 is connected to the rotor 5 b.
  • the driving shaft 6 is connected to a first driving-side shaft portion 7 c of the driving-side scroll member 70 .
  • the driving-side scroll member 70 includes a first driving-side scroll portion 71 on the motor 5 side, and a second driving-side scroll portion 72 on the discharge opening 3 d side.
  • the first driving-side scroll portion 71 includes a first driving-side end plate 71 a and first driving-side walls 71 b.
  • the first driving-side end plate 71 a is connected to the first driving-side shaft portion 7 c connected to the driving shaft 6 , and extends in a direction orthogonal to the driving-side rotation axis CL 1 .
  • the first driving-side shaft portion 7 c is provided so as to be rotatable with respect to the housing 3 through a first driving-side bearing 11 that is a ball bearing.
  • the first driving-side end plate 71 a has a substantially disc shape in a planar view.
  • the plurality of first driving-side walls 71 b formed in a spiral shape are provided on the first driving-side end plate 71 a.
  • the first driving-side walls 71 b are disposed at an equal interval around the driving-side rotation axis CL 1 .
  • the second driving-side scroll portion 72 includes a second driving-side end plate 72 a and a second driving-side walls 72 b.
  • the plurality of second driving-side walls 72 b each formed in a spiral shape are provided similarly to the above-described first driving-side walls 71 b.
  • a second driving-side shaft portion 72 c in a cylindrical shape that extends in the driving-side rotation axis CL 1 is connected to the second driving-side end plate 72 a.
  • the second driving-side shaft portion 72 c is provided so as to be rotatable with respect to the housing 3 through a second driving-side bearing 14 that is a ball bearing.
  • the second driving-side end plate 72 a includes a discharge port 72 d extending along the driving-side rotation axis CL 1 .
  • Two seal members 16 are provided on a front end side (left side in FIG. 1 ) of the second driving-side shaft portion 72 c relative to the second driving-side bearing 14 , between the second driving-side shaft portion 72 c and the housing 3 .
  • the two seal members 16 and the second driving-side bearing 14 are disposed to include a predetermined interval in the driving side rotation axis CL 1 direction.
  • a lubricant that is a grease as a semi-solid lubricant is sealed between the two seal members 16 .
  • only one seal member 16 may be provided. In this case, the lubricant is sealed between the seal member 16 and the second driving-side bearing 14 .
  • the first driving-side scroll portion 71 and the second driving-side scroll portion 72 are fixed while the front ends (free ends) of the walls 71 b and 72 b face each other.
  • the first driving-side scroll portion 71 and the second driving-side scroll portion 72 are fixed by wall fixing bolts (wall fixing parts) 31 that are fastened to flange portions 73 provided at a plurality of positions in the circumferential direction.
  • the flange portions 73 are provided so as to protrude outward in the radial direction.
  • the wall fixing bolt 31 is in a position accessible by a tool from the access hole 3 b 1 formed in the scroll accommodation portion 3 b.
  • the driven-side scroll member 90 includes a driven-side end plate 90 a that is located at a substantially center in the axial direction (horizontal direction in figure).
  • the through hole 90 h is provided at a center of the driven-side end plate 90 a, and causes the compressed air to flow toward the discharge port 72 d.
  • a first driven-side walls 91 b are provided on one side surface of the driven-side end plate 90 a, and a second driven-side walls 92 b are provided on the other side surface of the driven-side end plate 90 a.
  • the first driven-side walls 91 b provided on the motor 5 side from the driven-side end plate 90 a engage with the first driving-side walls 71 b of the first driving-side scroll portion 71 .
  • the second driven-side walls 92 b provided on the discharge opening 3 d side from the driven-side end plate 90 a engage with the second driving-side walls 72 b of the second driving-side scroll portion 72 .
  • a first support member 33 and a second support member 35 are provided at both ends of the driven-side scroll member 90 in the axial direction (horizontal direction in the figure).
  • the first support member 33 is disposed on the motor 5 side, and the second support member 35 is disposed on the discharge opening 3 d side.
  • the first support member 33 is fixed to the front ends (free ends) on the outer peripheral side of the first driven-side walls 91 b by a first support fixing bolt (first support fixing part) 34
  • a second support member 35 is fixed to the front ends (free ends) on the outer peripheral side of the second driven-side walls 92 b by a second support fixing bolt (second support fixing part) 36
  • the second support fixing bolt 36 is in a position accessible by a tool from the access hole 3 b 1 formed in the scroll housing 3 b.
  • a shaft portion 33 a is provided on the center axis side of the first support member 33 , and the shaft portion 33 a is fixed to the housing 3 through a first support member bearing 37 .
  • a shaft portion 35 a is provided on the center axis side of the second support member 35 , and the shaft portion 35 a is fixed to the housing 3 through a second support member bearing 38 .
  • the driven-side scroll member 90 rotates around a driven-side center axis CL 2 through the support members 33 and 35 .
  • a pin-ring mechanism (synchronous driving mechanism) 15 is provided between the first support member 33 and the first driving-side end plate 71 a. More specifically, a rolling bearing (ring) is provided in the first driving-side end plate 71 a, and a pin member 15 b is provided on the first support member 33 .
  • the pin-ring mechanism 15 transmits the driving force from the driving-side scroll member 70 to the driven-side scroll member 90 , and causes the scroll members 70 and 90 to perform rotational movement in the same direction at the same angular velocity.
  • the co-rotating scroll compressor 1 including the above-described configuration operates in the following manner.
  • the driving shaft 6 rotates around the driving-side rotation axis CL 1 by the motor 5
  • the first driving-side shaft portion 7 c connected to the driving shaft 6 also rotates, and the driving-side scroll member 70 accordingly rotates around the driving-side rotation axis CL 1 .
  • the driving-side scroll member 70 rotates, the driving force is transmitted from the support members 33 and 35 to the driven-side scroll member 90 through the pin-ring mechanisms 15 , and the driven-side scroll member 90 rotates around the driven-side rotation axis CL 2 .
  • the pin members 15 b of the pin-ring mechanisms 15 move while being in contact with the inner periphery surface of the circular hole, the both scroll members 70 and 90 perform rotational movement at the same angular velocity in the same direction.
  • the air compressed by the first driving-side walls 71 b and the first driven-side walls 91 b passes through the through hole 90 h provided in the driven-side end plate 90 a, and is joined with the air compressed by the second driving-side walls 72 b and the second driven-side walls 92 b.
  • the resultant air passes through the discharge port 72 d and is discharged to outside from the discharge opening 3 d of the housing 3 .
  • the discharged compressed air is guided to an unillustrated internal combustion engine, and is used as combustion air.
  • the second support member 35 is inserted from the open end side of the scroll accommodation portion 3 b and assembled. Specifically, the shaft portion 35 a of the second support member 35 is inserted into the inner periphery of the inner ring of the second support member bearing 38 . At this time, the sealing bolt 40 (see FIG. 1 ) is not attached to the access hole 3 b 1 formed in the scroll accommodation portion 3 b.
  • the second driving-side scroll portion 72 is assembled. Specifically, the second driving-side shaft portion 72 c of the second driving-side scroll portion 72 is inserted into the inner periphery of the inner ring of the second driving-side bearing 14 .
  • the driven-side scroll member 90 is assembled. Specifically, after the front end of the second driven-side wall 92 b of the driven-side scroll member 90 and the front end of the second support member 35 are butted, the driven-side scroll member 90 and the second support member 35 are fixed using the second support fixing bolt 36 . This fixing work is performed by inserting a tool from the access hole 3 b 1 and rotating the second support fixing bolt 36 about its axis.
  • the fixing work may be performed by rotating the driven-side scroll member 90 and the second support member 35 by a predetermined angle using the same access hole 3 b 1 or the fixing work may be performed using a plurality of access holes 3 b 1 provided at corresponding angular positions without the driven-side scroll member 90 and the second support member 35 being rotated.
  • the first driving-side scroll portion 71 is assembled. Specifically, after the first driving-side wall 71 b is butted to the second driving-side wall 72 b of the second driving-side scroll portion 72 , the first driving-side scroll portion 71 and the second driving-side scroll portion 72 are fixed using the wall fixing bolt 31 . This fixing work is performed by inserting a tool from the access hole 3 b 1 and rotating the wall fixing bolt 31 about its axis.
  • the fixing work may be performed by rotating the driving-side scroll member 70 by a predetermined angle using the same access hole 3 b 1 , or the fixing work may be performed using a plurality of access holes 3 b 1 provided at corresponding angular positions without the driving-side scroll member 70 being rotated.
  • the first support member 33 is assembled. Specifically, after the front end of the first driven-side wall 91 b of the driven-side scroll member 90 and the front end of the first support member 33 are abutted, the driven-side scroll member 90 and the first support member 33 are fixed using the first support fixing bolt 34 . This fixing work is performed by accessing from the open end (right side end part in the same Figure) side of the scroll accommodation portion 3 b.
  • the sealing bolt 40 is fixed to the access hole 3 b 1 . Thereby, the inside of the housing 3 can be closely sealed.
  • the fixing work of the second support fixing bolt 36 described with reference to FIG. 2C may be performed after the driven-side scroll member 90 is temporarily fixed to the second support member 35 , and may be performed after the process of FIG. 2D or FIG. 2E , for example.
  • the fixing work of the wall fixing bolt 31 described with reference to FIG. 2D may be performed by accessing from the open end side of the scroll accommodation portion 3 b without using the access hole 3 b 1 .
  • the present embodiment achieves the following action effects.
  • a tool can be inserted through the access hole 3 b 1 to access the second support fixing bolt 36 and the wall fixing bolt 31 .
  • access can be performed from the outside of the housing 3 , and work can be performed, which facilitates assembly work.
  • the sealing bolt 40 is attached to the access hole 3 b 1 and sealed. This allows the housing 3 to be closely sealed.
  • the access hole 3 b 1 is provided at the end part opposite to the end part openable of the scroll accommodation portion 3 b. Therefore, the second support member 35 and the driving-side scroll member 70 can be accessed after being assembled in the scroll accommodation portion 3 b.
  • the co-rotating scroll compressor is used as the supercharger
  • the present disclosure is not limited to this, and it is possible to widely use it as long as it compresses fluid. It can also be used, for example, as a refrigerant compressor used in air conditioning machines. Moreover, it is also possible to apply the scroll compressor 1 of the invention to the air control apparatus using air force as a brake system for rail vehicles.
  • the access hole 3 b 1 can also be used for accessing the reference pins and positioning pins of each component incorporated in the scroll accommodation portion 3 b or passing a stopper to prevent the scroll members 70 and 90 from rotating during assembly as another application.
  • FIGS. 3A and 3B Reference embodiments are shown in FIGS. 3A and 3B .
  • the assembly is performed as follows. That is, as shown in FIG. 3A and FIG. 3B , the first driving-side scroll portion 71 and the second driving-side scroll portion 72 are fixed by the wall fixing bolt 31 , and the first support member 33 and the driven-side scroll member 90 are fixed by the first support fixing bolt 34 , and, the second support member 35 and the driven-side scroll member 90 are fixed by the second support fixing bolt 36 , then these are integrated to form a cartridge (assembly). Thereafter, the cartridge is inserted from the open end side of the scroll accommodation portion 3 b and assembled.
  • the cartridge is formed before being inserted into the scroll accommodation portion 3 b, which allows both scroll members 70 and 90 to be centered before the cartridge is inserted into the scroll accommodation portion 3 b. Therefore, the both scroll members 70 and 90 can be accurately assembled. Further, the access hole 3 b 1 and the sealing bolt 40 described above become unnecessary, and the number of parts can be reduced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
US16/480,073 2017-01-27 2018-01-25 Co-rotating scroll compressor and method of assembling the same Abandoned US20190368492A1 (en)

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JP2017013324A JP6854043B2 (ja) 2017-01-27 2017-01-27 両回転スクロール型圧縮機及びその組立方法
JP2017-013324 2017-01-27
PCT/JP2018/002294 WO2018139538A1 (fr) 2017-01-27 2018-01-25 Compresseur à spirale à double rotation, et procédé d'assemblage de celui-ci

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JP7017261B2 (ja) * 2020-02-12 2022-02-08 有限会社スクロール技研 スクロール型真空ポンプ
JP7096961B2 (ja) * 2020-06-11 2022-07-07 有限会社スクロール技研 廃熱回収システムおよびそれに使用される複合スクロール流体機械

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JPS5443132A (en) 1977-09-12 1979-04-05 Honda Motor Co Ltd Processing of porttopeninggsurface of 2 cycle engine cylinder
JP3261751B2 (ja) * 1992-08-19 2002-03-04 ダイキン工業株式会社 密閉横形スクロール圧縮機
JP4718831B2 (ja) * 2004-12-27 2011-07-06 アネスト岩田株式会社 スクロール流体機械
JP5931564B2 (ja) * 2012-04-25 2016-06-08 アネスト岩田株式会社 両回転型スクロール膨張機及び該膨張機を備えた発電装置
JP2014101791A (ja) * 2012-11-20 2014-06-05 Scroll Giken:Kk スクロール流体機械
US9435339B2 (en) * 2013-03-13 2016-09-06 Agilent Technologies, Inc. Vibration/noise management in a scroll compressor

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DE112018000557T5 (de) 2019-12-05
JP2018119520A (ja) 2018-08-02
WO2018139538A1 (fr) 2018-08-02

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