CN106536925A - Hydraulic machine with radial pistons comprising a casing not exhibiting symmetry of revolution - Google Patents
Hydraulic machine with radial pistons comprising a casing not exhibiting symmetry of revolution Download PDFInfo
- Publication number
- CN106536925A CN106536925A CN201580021448.4A CN201580021448A CN106536925A CN 106536925 A CN106536925 A CN 106536925A CN 201580021448 A CN201580021448 A CN 201580021448A CN 106536925 A CN106536925 A CN 106536925A
- Authority
- CN
- China
- Prior art keywords
- cam
- leaflet
- hydraulic press
- cylinder
- housing
- 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.)
- Granted
Links
- 230000001747 exhibiting effect Effects 0.000 title 1
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 230000007935 neutral effect Effects 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 abstract 1
- 238000002372 labelling Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- CUZMQPZYCDIHQL-VCTVXEGHSA-L calcium;(2s)-1-[(2s)-3-[(2r)-2-(cyclohexanecarbonylamino)propanoyl]sulfanyl-2-methylpropanoyl]pyrrolidine-2-carboxylate Chemical compound [Ca+2].N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1.N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1 CUZMQPZYCDIHQL-VCTVXEGHSA-L 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/22—Reciprocating-piston liquid engines with movable cylinders or cylinder
- F03C1/24—Reciprocating-piston liquid engines with movable cylinders or cylinder in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders
- F03C1/247—Reciprocating-piston liquid engines with movable cylinders or cylinder in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders with cylinders in star- or fan-arrangement, the connection of the pistons with an actuated element being at the outer ends of the cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/10—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
- F04B1/107—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders
- F04B1/1071—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Reciprocating Pumps (AREA)
- Prostheses (AREA)
- Retarders (AREA)
Abstract
The present invention relates to a hydraulic machine comprising a casing (100), a multi-lobed cam (200), a cylinder block (300) comprising a plurality of cylinders (310), pistons (500) translationally mobile in the cylinders (310) and resting against the lobes of the cam (200), and a fluid-distribution assembly connected to the cylinders, the cam (200) and the cylinder block (310) being capable of relative rotation about an axis of rotation (O-O), and is characterized in that the outer envelope of the casing (100) does not exhibit symmetry of revolution about the axis of rotation (O-O) and has a smaller dimension opposite a cam sector (110) that has no function lobe.
Description
Technical field
The present invention relates to the field of hydraulic electric motor and pump.
It is more particularly related to have the hydraulic electric motor of radial piston and the field of pump.
Background technology
Applicant has provided the hydraulic electric motor with radial piston and pump of Multiple Type.
As shown in longitudinal cross-section in FIG is with lateral cross section in fig. 2, the hydraulic electric motor with radial piston leads to
Often include hydraulic/mechanical transducer in the room of housing 10, which includes：
Many lobe cams 20, for example, formed by the inner surface of the element 22 of housing；
Cylinder body 30, which is installed in the housing 10 with the relative rotation；
Axle 40, which is rotationally coupled to cylinder body 30；
Piston 50, guiding are that radially sliding in the respective cylinder 52 of cylinder body guides and be supported on cam 20
In leaflet, the quantity of the leaflet of the quantity of this piston 50 different from being formed on cam 20；And
Allotter 60, which is suitable to for the fluid from pressure source to be applied to continuously and in a controlled manner piston 50, makes
Continuous promotion that must be by piston 50 in the leaflet of cam 20 drives cylinder body 30 and is associated with its element with regard to shell
Body 10 is rotated against.
This system is reversible, if that is, axle 40 or the element being mechanically coupled to which are driven by the rotation of outside mechanical component
It is dynamic, then piston 50 just in cylinder 52 produces continuous pressure with the cooperation of many lobe cams 20 and causes what is illustrated in fig. 1 and 2
Then hydraulic/mechanical transducer does not constitute motor but hydraulic pump.
Describe to include the outside many lobe cam related with inner radial piston to cylinder body in file FR2872227
This hydraulic press Example embodiments.
Have been observed that in some particular machine constructions, the constraint in the use space along special permission direction can be prevented
And/or so that the use of the aforementioned machine with the symmetrical piston of longitudinal axis is difficult.
The content of the invention
In this context, the purpose of the present invention is to improve prior art.
Purpose is realized based on hydraulic press of the invention, the hydraulic press includes
Housing；
Including the cam of multiple leaflets；
Including the cylinder body of multiple cylinders；
Piston, which translatable movement and is supported in the leaflet of cam in the cylinder；And
The fluid dispensing subassembly being connected with the cylinder,
Cam can be rotated against around rotation axiss with cylinder body,
It is characterized in that：
It is rotationally symmetrical and with towards the portion of the cam for not having function leaflet that the shell of housing is not about rotation axiss
The reduced size for dividing.
Description of the drawings
This will be manifested when the accompanying drawing that reference is provided by way of non-limiting examples reads detailed description below
Bright further feature, purpose and advantage and in the accompanying drawings：
Previously described Fig. 1 and Fig. 2 respectively illustrate the section of the I I along labelling in fig. 2 and have passed through prior art
The longitdinal cross-section diagram of the hydraulic electric motor known, and along the view in transverse section of the same motor in the section of the I II of labelling in Fig. 1；
Fig. 3 shows the view in transverse section of the hydraulic press for meeting the present invention；And
Fig. 4 shows the similar view in transverse section of the hydraulic press for meeting variant of the invention with Fig. 5.
Specific embodiment
Hydraulic press includes housing 100, the external cam 200 centered on rotation axiss O O, and including being distributed in inside which
Multiple leaflets of sensing axes O O on radial surface, cylinder body 300, during which is contained in the center of cam 200 and including
With regard to multiple cylinders 310 that rotation axiss O O are oriented radially, and the radially opening on the outside of cylinder body 300
And in cylinder 310 translatable movement and the piston 500 that is placed in the leaflet of cam 200.
Each leaflet 210 of cam 200 includes with the spill throat 212 relative to axes O-O relatively large radius, is oriented to
Two summits 214 of adjacent leaflet are located at 212 both sides of spill throat.
The hydraulic press that figure 3 illustrates also includes the fluid dispensing subassembly coupled with cylinder 310.However, for example as in Fig. 1
Shown, this fluid dispensing subassembly that can meet known arrangement of the prior art hereinafter will not be described in detail.
As noted, according to the present invention, the shell of housing 100 be not about rotation axiss O O it is rotationally symmetrical and
With the reduced size towards the part 110 of the cam for not having function leaflet.
" function leaflet " means, in the relative movement thereof when cylinder body 300 rotates, causes towards piston
The region of the cam for moving radially.Thus, " there is no the part of the cam of function leaflet " to mean, the part of cam 200
110, cylinder body 300 it is in rotary moving during its profile do not cause moving radially towards piston.
As noted, the present invention with as its primary and foremost purpose be propose be suitable to as close to target arrangement liquid
Press, such as close to vehicle heating unit or or even as close to vehicle bottom surface.
Certainly the invention is not restricted to this two kinds of particular conditions and extend to make hydraulic press position near target
Whole applications.
Labelling O in fig. 3 schematically shows this target and hereinafter no longer will be described more fully.
More specifically, as seen in fig. 3, advantageously according to the present invention housing 100 shell front
Include at the part 110 stated, platform or flat surfaces 112, which extends perpendicular to the radius extracted out from rotation axiss O O.
It will be observed that be, it is preferable that this device is with through axes O O and through transverse to the upper of platform 112
State the symmetrical plane of radius.
Those of skill in the art will be understood that the present invention thus form inoperative cam region 110, in the phase
Hope and reduce the very close to each other and thickness of shell with minimum in the angular domain 110 for using space.
Smallest radial size along the direction of free forward area is directly associated with the diameter of cylinder body 300.
At neutral region 110, cam 200 has hollow profile, is the spill in the direction along rotation axiss O O.
Even more accurately, preferably at part 110, the profile of cam 200 is there is provided between two summits 212
The transition and in-profile of cam 200 is rotating cylindrical and centered on rotation axiss O O at the part 110.In part
The retrieving position of this cam contour and piston 500 at 110, the i.e. diameter on the summit 214 of cam leaflet are corresponding.
It is possible thereby to the external dimensions of adjustment cam 200 and housing 100.Known piston is in neutral region not including leaflet
Apply little thrust on 110, therefore be enough to keep the necessary minimum thickness for the intensity of cam 200.
If suitably, combined with the application such as the every leaflet constant speed motor described in FR2872227, can provide convex
The leaflet of wheel is randomly distributed.
Neutral fraction 110 does not include actuating cam.
According to the particular instance illustrated in Fig. 3 and non-exclusively, external cam 200 have be evenly distributed in 300 °
Five activity leaflets on angle part, neutral fraction 110 have the angle aperture of 60 ° of specifications（Its angle aperture is consequently equal to one
The angle aperture of leaflet and corresponding with the suppressing portion of a leaflet or elimination portion with regard to conventional cam）, and cylinder body
300 eight cylinders 310 for including accommodating each piston 500.
Not including in the neutral fraction 110 of the cam of actuating cam part, it is meant that no function leaflet, the shape of cam
Shape by continuously towards piston 500 be arranged in the retrieving position in cylinder body 300.Without drive in this neutral fraction 110
Action.However, it is possible to being designed personnel adjusts driving leaflet without difficulty, arranged with being randomly distributed to adjust in particular
Cycle and obtain constant rate of speed motor.A kind of situation is that have other drive actions in other leaflets of cam, while living
Plug is through neutral fraction 110 so that motor can make complete rotation.
Preferably, the piston towards the arrangement of neutral region 110 keeps low pressure supply so that friction and minimization of loss.
More precisely, the supply port being arranged on the allotter 60 at neutral fraction 110 for this purpose is arranged in low
Press under supply to be maintained in retrieving position piston 500 at this position.In figure 3, these ports are referred to as 62 and 64.
Even more precisely, arrange towards piston 500 is radially outside promoted in order to avoid at neutral fraction 110
Above-mentioned port 62 and 64 at the neutral fraction 110 can be with：
Do not supply；
Or it is connected to the internal low-voltage of housing；
Or it is connected to low-pressure charging；
Or it is connected to specific selected low pressure.
Advantageously, the thickness of the metal in neutral fraction 110 can reduce because towards piston 500 be typically supplied with
Low pressure, this allows more to save diameter.
Show in Fig. 4 and meet variant of the invention embodiment different from the embodiment that illustrates in Fig. 3, and first
Front description is, the central shaft 40 associated with the rotation of cylinder body 30 is hollow, i.e. tubulose, to allow asessory shaft, for example, is joined
The axle for being connected to differential mechanism and being associated with the general fastener rotation of driving wheel is passed through.In the diagram, it is used for permitting in being formed in axle 40
Perhaps the center-aisle for passing through of asessory shaft is marked as 42.
According to a specific and non-limiting embodiment, the present invention can will be met in the case where the road clearance is not reduced
Machine be arranged on vehicle body lower section, the maximum outside diameter D1 of machine（In addition to neutral fraction 110）Less than 130mm and
Specifications of the diameter D2 of passage 42 in 30mm.Therefore, for integrated energy transmitting function, in addition to neutral fraction 110
The radius R1 of machine be specification in 50mm.By the distribution using 30% be used for cam, 60% be used for piston operation and
10% be used for inner shaft 40, for cam 100 radial dimension be the specification in 15mm R2（At the throat 212 of cam）,
For piston operation, cylinder body includes the R3 in 30mm specifications, and for outer shaft 40, specifications of the R4 in 5mm.
Another selectional feature of the invention, in order to geometry character balance this machine, which can include no work(
Several parts 110 of energy leaflet, which is distributed equally over around axes O O, and such as three parts 110 are distributed equally over axis
Around O-O.
According to another Advantageous embodiments, as shown in FIG. 5, can provide with regard to axes O O diametrically two
Individual part 110.Then machine includes two platforms 112 with regard to axes O O diametrically.This arrangement is allowed along perpendicular to flat
The even more big reduction of the lateral dimension of the device in the direction of platform 112.
Certainly, the invention is not restricted to the particular implementation for just having described, and extend into any change for meeting its spirit
Type.
If appropriate, no matter which is motor style or pump type sample, by coaxially stacking the type illustrated in Fig. 3
Multiple sub-components, by the piston for angularly offseting different sub-components, hydraulic press can be constructed,.The heap of multiple sub-components
The folded increase for allowing cylinder displacement, therefore the torque of the whole machine being consequently formed.Those of skill in the art will be understood that
Be, it is preferable that meet the present invention machine by with the symmetry with regard to plane P orthogonal with platform 112.
Claims (14)
1. a kind of hydraulic press, which includes：
Housing (100)；
Cam (200), which includes multiple leaflets；
Cylinder body (300), which includes multiple cylinders (310)；
Piston (500), which translatable movement and is supported in the leaflet of the cam (200) in the cylinder (310)；With
And
Fluid dispensing subassembly, which is connected with the cylinder,
Cam (200) can be rotated against around rotation axiss (O O) with the cylinder body (310), it is characterised in that：
The shell of housing (100) is not rotational symmetric and with towards no work(around the rotation axiss (O O)
The reduced size of the part (110) of the cam of energy leaflet.
2. device according to claim 1, it is characterised in that described convex at its part (110) place of no function leaflet
Wheel (200) is limited by the cylinder rotated centered on rotation axiss (O O).
3. the hydraulic press according in claim 1 to 2, it is characterised in that in the part of no function leaflet
(110) summit (214) of the adjacent leaflet of the profile extension of place's cam (200) to cam.
4. the hydraulic press according in claims 1 to 3, it is characterised in that the shell of housing (100) has face
To the flat surfaces (112) of the part (110) of the cam (200) of no function leaflet.
5. hydraulic press according to claim 4, it is characterised in that housing (100) are towards the flat surfaces
(112) part (11) place of the cam for positioning has minimum thickness.
6. the hydraulic press according in claim 1 to 5, it is characterised in that the cam of no feature leaflet
Partly the angle aperture of (110) covers the angle aperture of leaflet.
7. the hydraulic press according in claim 1 to 6, it is characterised in that include not having when the cylinder (310)
The cylinder (310) is arranged in into the device under low pressure supply during the cam portion (110) place of function leaflet.
8. the hydraulic press according in claim 1 to 7, it is characterised in that be arranged on the neutral fraction (110) place
For supply accommodate piston (500) cylinder (310) port (62,64)：
Do not supply；
Or it is connected to the internal low-voltage of the housing；
Or it is connected to low-pressure charging；
Or it is connected to specific selected low pressure,
To avoid being radially inwardly directed to outside promotion piston (500) at the neutral fraction (110) place.
9. the hydraulic press according in claim 1 to 8, it is characterised in that with the outer flat table with the housing
The orthogonal symmetrical plane in face (112).
10. the hydraulic press according in claim 1 to 9, it is characterised in that including the leaflet being randomly distributed
Limiting constant speed motor.
11. hydraulic presses according in claim 1 to 10, it is characterised in that include around axes O O equably
Multiple parts (110) for not having function leaflet of distribution.
12. hydraulic presses according in claim 1 to 11, it is characterised in that include with regard to axes O O radially
Two relative parts for not having function leaflet (110).
13. hydraulic presses according in claim 1 to 12, it is characterised in that include with regard to axes O O radially
Two relative flat surfaces (112).
14. hydraulic presses according in claim 1 to 13, it is characterised in that include and the hollow cylinder body
(30) central shaft (40) of rotary link, to allow what is be for example connected to differential mechanism and associate with the universal joint of driving wheel
The asessory shaft of axle is passed through.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1453747A FR3020415B1 (en) | 2014-04-25 | 2014-04-25 | RADIAL PISTON HYDRAULIC MACHINE COMPRISING A NON-SYMMETRIC REVOLUTION CASE |
| FR1453747 | 2014-04-25 | ||
| PCT/EP2015/058875 WO2015162237A1 (en) | 2014-04-25 | 2015-04-24 | Hydraulic machine with radial pistons comprising a casing not exhibiting symmetry of revolution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106536925A true CN106536925A (en) | 2017-03-22 |
| CN106536925B CN106536925B (en) | 2019-06-04 |
Family
ID=50877511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580021448.4A Expired - Fee Related CN106536925B (en) | 2014-04-25 | 2015-04-24 | Hydraulic press with radial piston including non-rotationally symmetrical housing |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN106536925B (en) |
| FR (1) | FR3020415B1 (en) |
| WO (1) | WO2015162237A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3489509A1 (en) * | 2017-11-23 | 2019-05-29 | Robert Bosch GmbH | Cam profile for a hydrostatic radial piston machine, and hydrostatic radial piston machine |
| FR3148633A1 (en) * | 2023-05-10 | 2024-11-15 | Poclain Hydraulics Industrie | Improved pressure adapter for hydraulic system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3267861A (en) * | 1963-11-21 | 1966-08-23 | Sigma | Fuel injection pumps comprising a distributing valve for use with five cylinders intenal combustion engines |
| US3922956A (en) * | 1971-11-09 | 1975-12-02 | Renold Ltd | Hydraulic motors |
| CN1052172A (en) * | 1989-11-28 | 1991-06-12 | 浙江省机电设计研究院 | Equal stress raceway radial spherical piston hydraulic motor |
| JPH1122638A (en) * | 1997-07-02 | 1999-01-26 | Tochigi Fuji Ind Co Ltd | Radial piston pump and coupling provided with the same |
| JP2004190520A (en) * | 2002-12-09 | 2004-07-08 | Eaton Hydraulics Co Ltd | Device for limiting axial movement of piston roller of multi-stroke type radial piston motor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB124569A (en) * | 1918-03-27 | 1919-03-27 | James Thorpe | Improvements in Rotary Pumps. |
| FR2872227B1 (en) * | 2004-06-28 | 2006-09-29 | Poclain Hydraulics Ind Soc Par | HYDRAULIC MOTOR |
| US20110283878A1 (en) * | 2004-10-28 | 2011-11-24 | Nordson Corporation | Rotary Pump |
| DE102008060596A1 (en) * | 2008-12-05 | 2010-06-10 | Robert Bosch Gmbh | Hydraulic transformer for hydrostatic drive system, has set of displacement bodies guided in rotor and designed as radial pistons, where pressurizing medium inflow and - outflow take place at spaces by rotor axle |
-
2014
- 2014-04-25 FR FR1453747A patent/FR3020415B1/en active Active
-
2015
- 2015-04-24 CN CN201580021448.4A patent/CN106536925B/en not_active Expired - Fee Related
- 2015-04-24 WO PCT/EP2015/058875 patent/WO2015162237A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3267861A (en) * | 1963-11-21 | 1966-08-23 | Sigma | Fuel injection pumps comprising a distributing valve for use with five cylinders intenal combustion engines |
| US3922956A (en) * | 1971-11-09 | 1975-12-02 | Renold Ltd | Hydraulic motors |
| CN1052172A (en) * | 1989-11-28 | 1991-06-12 | 浙江省机电设计研究院 | Equal stress raceway radial spherical piston hydraulic motor |
| JPH1122638A (en) * | 1997-07-02 | 1999-01-26 | Tochigi Fuji Ind Co Ltd | Radial piston pump and coupling provided with the same |
| JP2004190520A (en) * | 2002-12-09 | 2004-07-08 | Eaton Hydraulics Co Ltd | Device for limiting axial movement of piston roller of multi-stroke type radial piston motor |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3020415A1 (en) | 2015-10-30 |
| CN106536925B (en) | 2019-06-04 |
| WO2015162237A1 (en) | 2015-10-29 |
| FR3020415B1 (en) | 2016-04-22 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190604 |
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