CN106536925B - Hydraulic press with the radial piston for including non-rotationally-symmetric shell - Google Patents
Hydraulic press with the radial piston for including non-rotationally-symmetric shell Download PDFInfo
- Publication number
- CN106536925B CN106536925B CN201580021448.4A CN201580021448A CN106536925B CN 106536925 B CN106536925 B CN 106536925B CN 201580021448 A CN201580021448 A CN 201580021448A CN 106536925 B CN106536925 B CN 106536925B
- Authority
- CN
- China
- Prior art keywords
- cam
- leaflet
- hydraulic press
- press according
- shell
- 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.)
- Expired - Fee Related
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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
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- 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 kind of hydraulic presses comprising: shell (100)；Cam (200) including multiple leaflets；Cylinder body (300) including multiple cylinders (310)；Piston (500) translatable movement and is supported in the leaflet of cam (200) in cylinder (310)；And the fluid dispensing subassembly being connect with cylinder, cam (200) and cylinder body (310) can surround rotation axis (O-O) relative rotation, and it is characterized by: the rotational symmetry around rotation axis (O-O) is not presented and has the smaller size opposite with the cam portion (110) of no function leaflet for the shell of shell (100).
Description
Technical field
The present invention relates to the fields of hydraulic electric motor and pump.
It is more particularly related to the field of hydraulic electric motor and pump with radial piston.
Background technique
Applicant has provided various types of hydraulic electric motor and pump with radial piston.
As shown in the longitudinal cross-section in Fig. 1 with the transversal cross-section in Fig. 2, the hydraulic electric motor with radial piston is logical
It often include hydraulic/mechanical energy converter in the room of shell 10 comprising:
More valve cams 20, such as formed by the inner surface of the element 22 of shell；
Cylinder body 30 is installed in the housing 10 with the relative rotation；
Axis 40 is rotationally coupled to cylinder body 30；
Piston 50 guides and guides for radially sliding in the respective cylinder 52 of cylinder body and be supported on cam 20
In leaflet, the quantity of this piston 50 is different from the quantity of the leaflet formed on cam 20；And
Distributor 60 is suitable for the fluid from pressure source continuously and being in a controlled manner applied to piston 50, make
The continuous promotion by piston 50 in the leaflet of cam 20 is obtained to drive cylinder body 30 and be associated with its element about shell
The relative rotation of body 10.
This system is reversible, i.e., drives if axis 40 or the element being mechanically coupled to it are rotated by external mechanical component
It is dynamic, then just the generation continuous pressure in cylinder 52 to show in fig. 1 and 2 for the cooperation of piston 50 and more valve cams 20
Then hydraulic/mechanical energy converter does not constitute motor but hydraulic pump.
It is described in file FR2872227 including the more valve cams in outside relevant with inner radial piston to cylinder body
This hydraulic press an Example embodiments.
It has been observed that in some specific machines construction, the constraint of the use space along special permission direction can be prevented
And/or the use of the aforementioned machine with the symmetrical piston of longitudinal axis is difficult.
Summary of the invention
In this context, the purpose of the present invention is improve the prior art.
Purpose is realized based on hydraulic press according to the present invention, which includes
Shell；
Cam including multiple leaflets；
Cylinder body including multiple cylinders；
Piston translatable movement and is supported in the leaflet of cam in the cylinder；And
The fluid dispensing subassembly being connect with the cylinder,
Cam and cylinder body can surround rotation axis relative rotation,
It is characterized by:
The shell of shell is not about rotation axis rotational symmetry and the portion with the cam towards no function leaflet
The smaller size divided.
Detailed description of the invention
This hair will be shown when reading following detailed description referring to the attached drawing provided by way of non-limiting examples
Bright other feature, purpose and advantage and in the accompanying drawings:
Previously described Fig. 1 and Fig. 2, which is respectively illustrated, has passed through the prior art along the section of the I-I marked in Fig. 2
The longitdinal cross-section diagram for the hydraulic electric motor known, and along the II-II marked in Fig. 1 section same motor transversal cross-section
Figure；
Fig. 3 shows the view in transverse section for meeting hydraulic press of the invention；And
Fig. 4 shows the similar view in transverse section for the hydraulic press for meeting variant of the invention with Fig. 5.
Specific embodiment
Hydraulic press includes shell 100, the cam 200 centered on rotation axis O-O, and including being distributed diameter inside it
Multiple leaflets of direction axes O-O on surface, cylinder body 300 are contained in the center of cam 200 and including closing
In multiple cylinders 310 that rotation axis O-O is oriented radially, and radially the opening on the outside of cylinder body 300 with
And translatable movement and the piston 500 being placed in the leaflet of cam 200 in cylinder 310.
Each leaflet 210 of cam 200 includes with the spill throat 212 relative to axes O-O relatively large radius, guiding
Two vertex 214 of adjacent leaflet are located at 212 two sides of spill throat.
The hydraulic press being shown in FIG. 3 further includes the fluid dispensing subassembly coupled with cylinder 310.However, for example as shown in figure 1
Shown in, this fluid dispensing subassembly that can meet known arrangement in the prior art hereinafter will not be described in detail.
As noted, according to the present invention, the shell of shell 100 be not about rotation axis O-O rotational symmetry and
The smaller size of part 110 with the cam towards no function leaflet.
" function leaflet " is meant, in the relative movement thereof when cylinder body 300 rotates, is caused towards piston
The region of the cam moved radially.It is meant as a result, " without the part of the cam of function leaflet ", the part of cam 200
110, its profile does not cause moving radially towards piston during the moving in rotation of cylinder body 300.
As noted, it is the liquid for proposing to be suitable for arranging as close to target that the present invention, which has as its primary and foremost purpose,
Press, such as close to vehicle heating unit or even as close to vehicle bottom surface.
Certainly the invention is not limited thereto two kinds of particular conditions and extending to wherein expectation makes hydraulic press by close-target positioning
Whole applications.
Label O in fig. 3 schematically shows this target and hereinafter will no longer be described more fully.
More specifically, as that can see in fig. 3, advantageously according to shell 100 of the invention shell preceding
Include platform or flat surfaces 112 at the part 110 stated, extends perpendicular to the radius extracted out from rotation axis O-O.
It will be observed that be, it is preferable that this device have across axes O-O and pass 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 forms inoperative cam region 110, in the phase
It hopes very close to each other in the angular domain 110 for reducing use space and there is the smallest thickness of shell.
It is directly associated with along the smallest radial size in the direction of free forward area with the diameter of cylinder body 300.
At neutral region 110, it is the spill along the direction of rotation axis O-O that cam 200, which has hollow profile,.
Even more accurately, preferably at part 110, the profile of cam 200 is provided between two vertex 214
The transition and in-profile of cam 200 is rotating cylindrical and centered on rotation axis O-O at part 110.In part
The retrieving position of this cam contour and piston 500 at 110, the i.e. diameter on the vertex 214 of cam leaflet are corresponding.
It is possible thereby to adjust the external dimensions of cam 200 Yu shell 100.Known piston is not including the neutral region of leaflet
Apply small thrust on 110, therefore is enough to keep the necessary minimum thickness for the intensity of cam 200.
If suitably, combined with the application such as every leaflet constant speed motor described in FR2872227, can provide convex
The irregular distribution of the leaflet of wheel.
Neutral fraction 110 does not include actuating cam.
The particular instance according to shown in Fig. 3 and non-exclusively, cam 200 have the angle for being evenly distributed in 300 °
Five activity leaflets on part, (its angle aperture is consequently equal to a leaflet to angle aperture of the neutral fraction 110 with 60 ° of specifications
Angle aperture and corresponding with the suppressing portion of leaflet or elimination portion with about conventional cam), and cylinder body 300 is wrapped
Include eight cylinders 310 for accommodating each piston 500.
In the neutral fraction 110 for not including the cam of actuating cam part, it is meant that there is no function leaflet, the shape of cam
Shape by continuously towards piston 500 be arranged into the retrieving position in cylinder body 300.It is not driven in this neutral fraction 110
Movement.However, it is possible to which be designed personnel adjusts driving leaflet without difficulty, in particular with irregular distribution arrangement to adjust
Period and obtain constant rate of speed motor.A kind of situation is that have other drive actions in other leaflets of cam, living simultaneously
Plug is by neutral fraction 110 so that motor can make complete rotation.
Preferably, low pressure is kept to supply towards the piston that neutral region 110 is arranged so that friction and minimization of loss.
More precisely, the supply port being arranged on the distributor 60 at neutral fraction 110 for this purpose is arranged in low
Piston 500 to be maintained in retrieving position at this position under pressure supply.In Fig. 3, these ports are referred to as 62 and 64.
Even more precisely, in order to avoid at neutral fraction 110 towards radially outside push piston 500, setting
Above-mentioned port 62 and 64 at neutral fraction 110 can be with:
It does not supply；
Or it is connected to the internal low-voltage of shell；
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.
It is shown in Fig. 4 and meets variant of the invention embodiment different from embodiment shown in Fig. 3, and first
Preceding description is, rotating associated central axis 40 with cylinder body 300 is hollow, i.e. tubulose, to allow asessory shaft, such as joins
It is connected to differential mechanism and passes through with the associated axis of general fastener rotation of driving wheel.In Fig. 4, it is formed in axis 40 for permitting
Perhaps the intermediate channel of asessory shaft passed through is marked as 42.
According to a specific and non-limiting embodiment, the present invention can will be met in the case where not reducing the road clearance
Machine be mounted on the lower section of vehicle body, the maximum outside diameter D1 (other than neutral fraction 110) of machine be less than 130mm and
The diameter D2 in channel 42 is in the specification of 30mm.Therefore, for integrated energy transmitting function, other than neutral fraction 110
The radius R1 of machine be the specification in 50mm.By using 30% distribution be used for cam, 60% for piston operation with
And 10% be used for inner shaft 40, the radial dimension for cam 100 be in 15mm specification R2 (in the throat 212 of cam
Place), for piston operation, cylinder body includes the R3 in 30mm specification, and for outer shaft 40, R4 is in the specification of 5mm.
Another selectional feature according to the present invention, for geometry character balances this machine, may include no function
Several parts 110 of energy leaflet, are distributed equally over around axes O-O, 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 about axes O-O diametrically two
A part 110.Then machine includes two platforms 112 about axes O-O diametrically.This arrangement allows along perpendicular to flat
The even greater reduction of the lateral dimension of the device in the direction of platform 112.
Certainly, the particular implementation that the present invention is not limited to just describe, and extend into any change for meeting its spirit
Type.
If appropriate, no matter it is motor style or pump type sample, by coaxially stacking type shown in Fig. 3
Multiple sub-components can construct hydraulic press by angularly deviating the piston of different sub-components.The stacking of multiple sub-components
The increase for allowing cylinder to be displaced, therefore the torque for the entire machine being consequently formed.Those of skill in the art will be understood that
It is, it is preferable that meeting machine of the invention will be with the symmetry about the plane P orthogonal with platform 112.
Claims (15)
1. a kind of hydraulic press comprising:
Shell (100)；
Cam (200) comprising multiple leaflets；
Cylinder body (300) comprising multiple cylinders (310)；
Piston (500) translatable movement and is supported in the leaflet of the cam (200) in the cylinder (310)；With
And
Fluid dispensing subassembly is connect with the cylinder,
The cam (200) and the cylinder body (300) can surround rotation axis (O-O) relative rotation, it is characterised in that:
The outer profile of the shell (100) is not rotational symmetry around the rotation axis (O-O) and has towards cam
The part (110) without function leaflet smaller size.
2. hydraulic press according to claim 1, which is characterized in that in the part (110) place of no function leaflet
Cam (200) is stated to be limited by the cylinder rotated centered on rotation axis (O-O).
3. hydraulic press according to claim 1, which is characterized in that in the part (110) place of no function leaflet
State the contour extension of cam (200) to cam adjacent leaflet vertex (214).
4. hydraulic press according to claim 1, which is characterized in that the outer profile of the shell (100) has towards described
The flat surfaces (112) of the part (110) without function leaflet of cam (200).
5. hydraulic press according to claim 4, which is characterized in that the shell (100) is towards the flat surfaces
(112) there is minimum thickness at the part (110) of the cam positioned.
6. hydraulic press according to claim 1, which is characterized in that the part (110) without function leaflet of the cam
Angle aperture be equal to a leaflet angle aperture.
7. hydraulic press according to claim 1, which is characterized in that including working as the cylinder (310) not having in the cam
The cylinder (310) is arranged in the device under low pressure supply when at the part (110) of functional leaflet.
8. hydraulic press according to claim 1, which is characterized in that the part without function leaflet of the cam is arranged in
(110) for supplying the port (62,64) for the cylinder (310) for accommodating the piston (500) at:
It does not supply；
Or it is connected to the internal low-voltage of the shell；
Or it is connected to specific selected low pressure,
The piston (500) is pushed to avoid outside is radially inwardly directed at the part (110) without function leaflet.
9. hydraulic press according to claim 4, which is characterized in that the hydraulic press has the flat surfaces with the shell
(112) orthogonal symmetrical plane.
10. hydraulic press according to claim 1, which is characterized in that including the irregular distribution for limiting constant speed motor
The leaflet.
11. hydraulic press according to claim 1, which is characterized in that more including being evenly distributed around the axis (O-O)
A part (110) without function leaflet.
12. hydraulic press according to claim 1, which is characterized in that including about the axis (O-O) diametrically two
A part (110) without function leaflet.
13. hydraulic press according to claim 1, which is characterized in that the outer profile of shell (100) includes about the axis
Two flat surfaces (112) of (O-O) diametrically.
14. hydraulic press according to claim 1, which is characterized in that including with the cylinder body (300) rotation be associated with
The central axis (40) for allowing asessory shaft to pass through.
15. hydraulic press according to claim 14, which is characterized in that the asessory shaft be connected to differential mechanism and with drive
The universal joint of driving wheel rotates associated axis.
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 CN106536925A (en) | 2017-03-22 |
| CN106536925B true 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 the radial piston for including non-rotationally-symmetric shell |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN106536925B (en) |
| FR (1) | FR3020415B1 (en) |
| WO (1) | WO2015162237A1 (en) |
Families Citing this family (1)
| 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 |
Citations (3)
| 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 | Hydraulic motor with constant-stress rolling track and radial spherical pistons |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB124569A (en) * | 1918-03-27 | 1919-03-27 | James Thorpe | Improvements in Rotary Pumps. |
| 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 |
| 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 WO PCT/EP2015/058875 patent/WO2015162237A1/en active Application Filing
- 2015-04-24 CN CN201580021448.4A patent/CN106536925B/en not_active Expired - Fee Related
Patent Citations (3)
| 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 | Hydraulic motor with constant-stress rolling track and radial spherical pistons |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3020415A1 (en) | 2015-10-30 |
| FR3020415B1 (en) | 2016-04-22 |
| WO2015162237A1 (en) | 2015-10-29 |
| CN106536925A (en) | 2017-03-22 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190604 |