CN201265572Y - Hydraulic control apparatus - Google Patents
Hydraulic control apparatus Download PDFInfo
- Publication number
- CN201265572Y CN201265572Y CNU2008201351984U CN200820135198U CN201265572Y CN 201265572 Y CN201265572 Y CN 201265572Y CN U2008201351984 U CNU2008201351984 U CN U2008201351984U CN 200820135198 U CN200820135198 U CN 200820135198U CN 201265572 Y CN201265572 Y CN 201265572Y
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- control device
- cylinder body
- hydraulic control
- described cylinder
- piston
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
A hydraulic control device comprises a hydraulic cylinder and a release bearing (1). The inner ring of the release bearing (1) is fixedly connected with the piston (4) of the hydraulic cylinder, wherein the hydraulic cylinder comprises a cylinder body (7), a cylinder core (6) inserted in the cylinder body (7) to form an annular space with one close end together with the cylinder body (7), and the piston (4) which is arranged in the annular space with one close end and can move axially, the piston is hermetically contacted with the inner wall of the cylinder body (7) and the outer wall of the cylinder core (6), and the cylinder body (7) is provided with a passage (18) which is communicated with the annular space and connected with a hydraulic oil pipe (13). As the hydraulic cylinder adopts a mode that the cylinder body, the cylinder core and the piston are separated from each other, the structure is simple, and the difficulty in manufacturing parts and components is reduced.
Description
Technical field
The utility model relates to a kind of hydraulic control device, more particularly, relates to a kind of hydraulic control device that utilizes hydraulic transmission technology direct manipulation release bearing, in particular for solenoidoperated cluthes deciliter hydraulic control device.
Background technique
Hydraulic control device is to adopt hydraulics to control the actuator of the action of miscellaneous part, and the hydraulic control device that for example is used for clutch is meant that promoting clutch separation under the effect of hydraulic pressure directly or indirectly refers to, the device that makes the clutch compressing disc separation.
The hydraulic control device of existing clutch mainly is divided into indirect control and directly controls two types.In the hydraulic control device of indirect control types, the piston space ground connection of oil hydraulic cylinder (for example by lever or shift fork) promotes release bearing and separates.When oil hydraulic cylinder was oil-filled, the piston of oil hydraulic cylinder promoted lever and rotates around fulcrum, and lever pushing release bearing, release bearing promote clutch separation again and refer to, make clutch separation.On the contrary, when the oil hydraulic cylinder off-load, release bearing resets under the effect of clutch diaphragm spring, makes clutch.The hydraulic control device of this indirect control types need adopt the lever of mechanical structure or shift fork realize clutch deciliter, stationarity and symmetry properties that lever or shift fork load are relatively poor, and lever exists wearing and tearing and energy loss, the life-span of having reduced system in transmittance process.In the hydraulic control device of direct control types, the piston of oil hydraulic cylinder directly promotes release bearing to be separated, thereby has avoided the problem of the hydraulic control device of above-mentioned indirect control types.But directly the common structure more complicated of hydraulic control device of control types is not easy to processing.For example notification number is the clutch fluid pressure control device that discloses a kind of direct control types in the utility model patent of CN 201027849Y, it comprises oil hydraulic cylinder and release bearing, described oil hydraulic cylinder comprises cylinder body with annular cavity and the annular piston that slides sealedly at this annular cavity, and described piston is fixedlyed connected with described release bearing.Because the cylinder body of described oil hydraulic cylinder need integrally form annular cavity, and described annular piston need be inserted in this annular cavity hermetically, so the structure more complicated, is not easy to processing.
The model utility content
The purpose of this utility model is at the structure more complicated of existing hydraulic control device (the especially directly clutch fluid pressure control device of control types), the shortcoming that is not easy to process, a kind of relatively simple for structure, hydraulic control device of being easy to process is provided, perhaps is at least the public a kind of alternative technological scheme is provided.
The hydraulic control device that a kind of mode of execution of the present utility model provides comprises oil hydraulic cylinder and release bearing, the inner ring of described release bearing is fixedlyed connected with the piston of described oil hydraulic cylinder, wherein, described oil hydraulic cylinder comprises cylinder body, be plugged in the described cylinder body and form the cylinder core of the annulus of end sealing with described cylinder body, and be arranged in the annulus of this end sealing and can axially movable described piston, described piston contacts with the inwall of described cylinder body and the outer wall sealing of described cylinder core, described cylinder body is provided with the passage that is communicated with described annulus, and this passage is connected with hydraulic oil pipe.
The hydraulic control device that provides according to a kind of mode of execution of the present utility model, the form that oil hydraulic cylinder wherein adopts cylinder body, cylinder core to separate with piston, so relatively simple for structure has reduced the difficulty of processing of component.
Description of drawings
Fig. 1 is the schematic cross-section according to the hydraulic control device of a kind of mode of execution of the present utility model;
Fig. 2 is the monnolithic case schematic representation of hydraulic control device shown in Figure 1;
Fig. 3 is the partial enlarged drawing of I part among Fig. 1, and the limit structure between setting and cylinder core and the piston has been described;
Fig. 4 is the partial enlarged drawing of II part among Fig. 1, and the mounting type of y-shaped ring has been described;
Fig. 5 is the partial enlarged drawing of III part among Fig. 1, and the mode that is tightly connected of cylinder body, cylinder core and cylinder seat mainly has been described;
Fig. 6 is that hydraulic control device shown in Figure 1 is connected with clutch, and is in schematic cross-section under the depressurization phase at oil hydraulic cylinder;
Fig. 7 is that hydraulic control device shown in Figure 1 is connected with clutch, and is in schematic cross-section under the high pressure conditions at oil hydraulic cylinder.
Embodiment
Describe embodiment of the present utility model below with reference to the accompanying drawings in detail.
Before being elaborated, at first need to prove, do not having under the situation of specified otherwise, " front end " mentioned in the utility model claims and specification is meant that along the axial close release bearing side of oil hydraulic cylinder (be Fig. 1, left side among Fig. 6 and Fig. 7) end, " rear end " is meant that along the axial close gear-box side of oil hydraulic cylinder (be Fig. 1, right side among Fig. 6 and Fig. 7) end, similarly, " preceding " and " back " mentioned in the utility model claims and specification are meant Fig. 1 respectively, left side shown in Fig. 6 and Fig. 7 and right side are so that describe.
As depicted in figs. 1 and 2, this hydraulic control device comprises oil hydraulic cylinder and release bearing 1, the inner ring of described release bearing 1 is fixedlyed connected with the piston of described oil hydraulic cylinder 4, wherein, described oil hydraulic cylinder comprises cylinder body 7, be plugged in the described cylinder body 7 and form the cylinder core 6 of the annulus of end sealing with described cylinder body 7, and be arranged in the annulus of this end sealing and can axially movable described piston 4, described piston 4 contacts with the inwall of described cylinder body 7 and the outer wall sealing of described cylinder core 6, described cylinder body 7 is provided with the passage 18 that is communicated with described annulus, and this passage 18 is connected with hydraulic oil pipe 13.
The cylinder core 6 of described oil hydraulic cylinder is plugged in the cylinder body 7, and the annulus of cylinder core 6 and cylinder body 7 formation one ends (for example rear end) sealings, and piston 4 is set in this annulus from the untight the other end (for example front end) of this annulus.The structure of this end sealing can form by variety of way well known in the art, hereinafter will specify wherein a kind of concrete implementation.
Passage 18 is used for the hydraulic oil of hydraulic oil pipe 13 is introduced or discharged in the annulus, with moving of application piston 4.Passage 18 can be formed on the random position of cylinder body 7, and under the preferable case, described passage 18 is formed at the rear end of described cylinder body 7.Can make the structure of whole device compact like this, reduce its radial dimension.Thereby be more suitable in the space of less for example strip in space or tubulose, installing and using.Axial length be can determine simultaneously hereinafter as required arbitrarily, and the compactedness and the usability of entire product do not influenced the cylinder seat 12 of explanation.For example, as shown in Figure 1, be formed with flange 71 in the rear end of cylinder body 7, passage 18 in this flange 71 along the radially extension of oil hydraulic cylinder.This passage 18 can penetrate this flange 71, and seals in the steel ball 8 of the diameter of passage 18 by press-fiting slightly larger in diameter in the end of this passage 18.
Described piston 4 contacts with the inwall of described cylinder body 7 and the outer wall sealing of described cylinder core 6, and this can realize by variety of way well known in the art, for example by on the piston 4 and between the outer wall of the inwall of described cylinder body 7 and described cylinder core 6 seal ring being installed.Under the preferable case, as shown in Figure 1 and Figure 4, be embedded with y-shaped ring 5 on the ear end face of described piston 4, so that described piston 4 contacts with the inwall of described cylinder body 7 and the outer wall sealing of described cylinder core 6.Because y-shaped ring 5 sealings are reliable and high pressure resistant, therefore such sealing means is simple in structure and reliable, has simplified processing, mounting process.More particularly, described y-shaped ring 5 comprises a cardinal extremity and two Zhi Duan, in the formed dovetail groove, two ends contact with the inwall of described cylinder body 7 and the outer wall sealing of described cylinder core 6 respectively on the ear end face of the described piston 4 that described cardinal extremity can be fixed on.
Under the preferable case, as shown in Figure 1, be provided with the axially extended spring 3 along described cylinder body 7 between described piston 4 and the described cylinder body 7, described piston 4 is provided with guide ring 2, to guide the flexible of described spring 3.Described spring 3 can make described piston 4 move more reposefully under hydraulic pressure.Described guide ring 2 can prevent that spring 3 from tilting when compression, thereby makes that operation is more stable.
Preferably, be provided with limit structure between described cylinder core 6 and the described piston 4, to limit the move axially distance of described piston 4 with respect to described cylinder core 6.Thereby prevent that piston 4 from moving out limit position, and can design this limit position of piston 4 according to actual needs, promptly piston 4 is with respect to the maximum axial displacement distance of cylinder core 6.This limit structure can realize by variety of way well known in the art, for example on the external peripheral surface of the front end of cylinder core 6 defining flange etc. is set.Under the preferable case, as shown in figures 1 and 3, described limit structure comprises the circular groove of the external peripheral surface of the front end that is arranged on described cylinder core 6, the snap ring 14 that is arranged on the circular cross section in this circular groove and the hierarchic structure that is arranged on the front end of described piston 4, and the contact surface of this hierarchic structure and described snap ring 14 is the circular arc that is complementary with described snap ring 14.When piston 4 moved to limit position, circular cross-section snap ring 14 provided reaction force for piston 4, and piston 4 has limited the radially expansion of snap ring 14 simultaneously, makes snap ring 14 can not skid off the circular groove of cylinder core.The limit method of this circular section snap ring because surface of contact all is an arc surface, has been avoided stress to concentrate, and can not be stuck.
According to the hydraulic control device that a kind of mode of execution of the present utility model provides, the cylinder body 7 of described oil hydraulic cylinder can be installed by other mounting structure, for example is installed on the gearbox.Alternatively, as shown in Figure 1, described oil hydraulic cylinder can also comprise cylinder seat 12, and the front end of this cylinder seat 12 and described cylinder body 7 and described cylinder core 6 are tightly connected.The sealing mode can realize by variety of way well known in the art, under the preferable case, as Fig. 1 and shown in Figure 5, the rear end of described cylinder body 7 is formed with hierarchic structure, the front end of described cylinder seat 12 inserts in this hierarchic structure, the rear end of described cylinder core 6 is formed with flange 61, this flange 61 is clipped between the hierarchic structure of described cylinder seat 12 and described cylinder body 7, be provided with seal washer 9 between described flange 61 and the described cylinder seat 12 and/or between the hierarchic structure of described flange 61 and described cylinder body 7, the front end of described cylinder seat 12 is fixedlyed connected with described cylinder body 7.Though only in Fig. 1 and Fig. 5, be shown as and between the hierarchic structure of described flange 61 and described cylinder body 7, be provided with seal washer 9, obviously can be simultaneously/or only between described flange 61 and described cylinder seat 12, seal washer 9 is set.The front end of described cylinder seat 12 and described cylinder body 7 can be bolted to connection, as shown in Figure 1.When tighting a bolt 11 the time, the front-end face of cylinder seat 12 is pressed to the described flange 61 of cylinder core 6 and is compressed seal washer 9, thereby prevents that oil hydraulic cylinder from leaking.This is provided with and utilizes cylinder body 7 to be connected with the bolt of cylinder seat 12 to defeat tightening seal packing ring 9, simplified technology, has reduced the requirement on machining accuracy of part and simple in structure.
Preferably, as shown in Figure 1, the rear end of described cylinder seat 12 is formed with fitting seat 19.Thereby in long and narrow installing space, do not need to increase in addition rectangular fitting seat, reduce the quantity of part, simplified mounting process.
Described hydraulic oil pipe 13 is connected with hydraulic system, with operating hydraulically operated cylinder.Preferably, described hydraulic oil pipe 13 extends axially along described cylinder seat 12, and the interface of described hydraulic oil pipe 13 is formed with projection, and described hydraulic oil pipe 13 is fixed by adopting mesopore bolt 10 these projections of compressing.Because hydraulic oil pipe 13 along the extending axially of cylinder seat 12, therefore makes that the structure of whole device is compact, reduces its radial dimension, thereby be more suitable in the space of less for example strip in space or tubulose, installing and using.The interface of hydraulic oil pipe 13 adopts the mode of mesopore bolt 10 compressing interface projections, is connected with the hydraulic fitting of using always and compares, and seals simpler more reliable.As shown in Figure 1, the front end of hydraulic oil pipe 13 is fixed on by mesopore bolt 10 on the flange 71 of rear end of cylinder body 7, and is communicated with passages 18 of forming in this flange 71.The rear end of hydraulic oil pipe 13 is fixed on the flange 71 of cylinder seat 12 rear ends by mesopore bolt 10.
Above-mentioned hydraulic control device can be used for various occasion well known in the art as actuator, and as a kind of concrete mode of execution, described hydraulic control device is used for clutch, and the outer ring of described release bearing 1 is pressed against on the diaphragm spring 15 of described clutch.
To be example with the hydraulic control device that is used for clutch below, the working method of the hydraulic control device that provides according to a kind of mode of execution of the present utility model will be provided in detail.
As shown in Figure 6 and Figure 7, the outer ring of the release bearing 1 of described hydraulic control device is pressed against on the diaphragm spring 15 of clutch, and 19 of the fitting seats of cylinder seat 12 can be installed on the cover plate (not shown) of gearbox.
As shown in Figure 6, when oil hydraulic cylinder is in the pressure release state, piston 4 is in compressed limit position under the elastic force effect of the diaphragm spring 15 of clutch, the platen 17 pressing friction sheets 16 of clutch, and clutch is in jointing state.
As shown in Figure 7, when oil-filled in oil hydraulic cylinder by hydraulic oil pipe 13, oil liquid pressure passes to piston 4, promoting piston 4 stretches out forward, piston 4 promotes bearing 1 compressing diaphragm spring 15, make diaphragm spring 15 that deformation take place, the elastic force that overcomes diaphragm spring 15 moves forward, diaphragm spring 15 is by lever principle, and the power that imposes on platen 17 is removed toward direction (promptly backward) perk opposite with the center in submarginal place, thereby platen 17 is away from friction plate 16, when being compressed to certain position, stop to the oil hydraulic cylinder fuel feeding, clutch is in separated position.
After the oil hydraulic cylinder pressure release, the oil pressure of oil hydraulic cylinder is zero, diaphragm spring 15 bounce-backs, piston 4 is pressed in the cylinder body 7, and fluid flows out oil hydraulic cylinder by hydraulic oil pipe 13, under the effect of lever, diaphragm spring 15 submarginal local platen 17 pressing friction sheets 16, the clutch of promoting.
Claims (11)
1. hydraulic control device, this hydraulic control device comprises oil hydraulic cylinder and release bearing (1), the inner ring of described release bearing (1) is fixedlyed connected with the piston (4) of described oil hydraulic cylinder, it is characterized in that, described oil hydraulic cylinder comprises cylinder body (7), be plugged in the described cylinder body (7) and form the cylinder core (6) of the annulus of end sealing with described cylinder body (7), and be arranged in the annulus of this end sealing and can axially movable described piston (4), described piston (4) contacts with the inwall of described cylinder body (7) and the outer wall sealing of described cylinder core (6), described cylinder body (7) is provided with the passage (18) that is communicated with described annulus, and this passage (18) is connected with hydraulic oil pipe (13).
2. hydraulic control device according to claim 1 is characterized in that, described passage (18) is formed at the rear end of described cylinder body (7).
3. hydraulic control device according to claim 1 is characterized in that, is embedded with y-shaped ring (5) on the ear end face of described piston (4), so that described piston (4) contacts with the inwall of described cylinder body (7) and the outer wall sealing of described cylinder core (6).
4. hydraulic control device according to claim 1, it is characterized in that, be provided with the axially extended spring (3) along described cylinder body (7) between described piston (4) and the described cylinder body (7), described piston (4) is provided with guide ring (2), to guide the flexible of described spring (3).
5. hydraulic control device according to claim 1 is characterized in that, is provided with limit structure between described cylinder core (6) and the described piston (4), to limit the move axially distance of described piston (4) with respect to described cylinder core (6).
6. hydraulic control device according to claim 5, it is characterized in that, described limit structure comprises the circular groove of the external peripheral surface of the front end that is arranged on described cylinder core (6), the snap ring (14) that is arranged on the circular cross section in this circular groove and the hierarchic structure that is arranged on the front end of described piston (4), and the contact surface of this hierarchic structure and described snap ring (14) is the circular arc that is complementary with described snap ring (14).
7. hydraulic control device according to claim 1 is characterized in that, described oil hydraulic cylinder also comprises cylinder seat (12), and the front end of this cylinder seat (12) and described cylinder body (7) and described cylinder core (6) are tightly connected.
8. hydraulic control device according to claim 7, it is characterized in that, the rear end of described cylinder body (7) is formed with hierarchic structure, the front end of described cylinder seat (12) inserts in this hierarchic structure, the rear end of described cylinder core (6) is formed with flange (61), this flange (61) is clipped between the hierarchic structure of described cylinder seat (12) and described cylinder body (7), be provided with seal washer (9) between described flange (61) and the described cylinder seat (12) and/or between the hierarchic structure of described flange (61) and described cylinder body (7), the front end of described cylinder seat (12) is fixedlyed connected with described cylinder body (7).
9. hydraulic control device according to claim 7 is characterized in that, the rear end of described cylinder seat (12) is formed with fitting seat (19).
10. hydraulic control device according to claim 7, it is characterized in that, described hydraulic oil pipe (13) extending axially along described cylinder seat (12), the interface of described hydraulic oil pipe (13) is formed with projection, and described hydraulic oil pipe (13) is fixed by adopting mesopore bolt (10) to oppress this projection.
11. the hydraulic control device of a clutch, it is characterized in that, described hydraulic control device is that the outer ring of described release bearing (1) is pressed against on the diaphragm spring (15) of described clutch according to any described hydraulic control device in the claim 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201351984U CN201265572Y (en) | 2008-09-01 | 2008-09-01 | Hydraulic control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201351984U CN201265572Y (en) | 2008-09-01 | 2008-09-01 | Hydraulic control apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201265572Y true CN201265572Y (en) | 2009-07-01 |
Family
ID=40831940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201351984U Expired - Lifetime CN201265572Y (en) | 2008-09-01 | 2008-09-01 | Hydraulic control apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201265572Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666360B (en) * | 2008-09-04 | 2012-09-05 | 比亚迪股份有限公司 | Hydraulic control device |
| CN102661335A (en) * | 2012-05-16 | 2012-09-12 | 东风汽车股份有限公司 | Connection structure of clutch slave cylinder and release bearing |
| CN105202056A (en) * | 2014-06-18 | 2015-12-30 | 舍弗勒技术股份两合公司 | Actuating system for a friction clutch |
| CN108150561A (en) * | 2016-12-06 | 2018-06-12 | 通用汽车环球科技运作有限责任公司 | For the groups of springs component of torque transmission device |
-
2008
- 2008-09-01 CN CNU2008201351984U patent/CN201265572Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666360B (en) * | 2008-09-04 | 2012-09-05 | 比亚迪股份有限公司 | Hydraulic control device |
| CN102661335A (en) * | 2012-05-16 | 2012-09-12 | 东风汽车股份有限公司 | Connection structure of clutch slave cylinder and release bearing |
| CN105202056A (en) * | 2014-06-18 | 2015-12-30 | 舍弗勒技术股份两合公司 | Actuating system for a friction clutch |
| CN108150561A (en) * | 2016-12-06 | 2018-06-12 | 通用汽车环球科技运作有限责任公司 | For the groups of springs component of torque transmission device |
| CN108150561B (en) * | 2016-12-06 | 2019-12-03 | 通用汽车环球科技运作有限责任公司 | Groups of springs component for torque transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090701 |
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| CX01 | Expiry of patent term |