CN2480211Y - Power-aid device for vehicle clutch - Google Patents
Power-aid device for vehicle clutch Download PDFInfo
- Publication number
- CN2480211Y CN2480211Y CN 01225114 CN01225114U CN2480211Y CN 2480211 Y CN2480211 Y CN 2480211Y CN 01225114 CN01225114 CN 01225114 CN 01225114 U CN01225114 U CN 01225114U CN 2480211 Y CN2480211 Y CN 2480211Y
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- CN
- China
- Prior art keywords
- piston
- power
- utility
- push rod
- cylinder
- 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 - Lifetime
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model relates to a clutch power assisting device for vehicles, having the advantages of simple structure, stable property and long life. A offsetting spring (3) of the clutch power assisting device for vehicles is arranged in a power assisting cylinder (2), wherein the power assisting cylinder (2) is provided with a boosting piston (4) which has a power assisting handspike (15). The offsetting spring is touched with the boosting piston. A hydraulic chamber (6) of the valve is provided with a relay piston (7) which is provided with a handspike (8). The utility model solve the problem that an offset grinding is generated by a piston and a cylinder wall because an acting force of the offsetting spring does not act on the centre line of the handspike, and achieves dust prevention and sealing for the purpose of long life. The utility model can be widely used in the automobile industry.
Description
The utility model relates to a kind of improvement invention of automobile-used clutch booster, and what be specifically related to is a kind of invention that retracing spring is installed in the novel automobile clutch servo device in the servo cylinder.
In the prior art, autoclutch generally is to utilize the pressure in modulated pressure chamber to change the pressure in clutch power-assisted chamber, thereby increase the propelling thrust of push rod, realize increasing the purpose of actuating force, it resets then is to rely on external extension spring to help the chamber inner carrier to reset, but because the application force of retracing spring is not on its piston line of centers, cause producing between piston and the cylinder wall eccentric wear phenomenon, after work a period of time, often cause between bucket cylinder monolateral air gap excessive and cause gas leakage that power-transfer clutch was lost efficacy, thereby the service life of power-transfer clutch is shorter, and its structure is more complicated also.
In view of the problem that known technology exists, the purpose of this utility model aims to provide a kind of simple in structure, and is scientific and reasonable, stable performance, the novel automobile clutch servo device of long service life.
The utility model is finished as follows: this novel automobile clutch servo device includes valve body, servo cylinder, control cock and retracing spring; Described valve body is provided with air by-pass passage and oil inlet; It is characterized in that described retracing spring is installed in the servo cylinder; And in described servo cylinder, be provided with the boosting piston of band power-assisted push rod; Described retracing spring contacts with boosting piston; Be provided with the relaying piston in the hydraulic pressure chamber of described valve body; And on the relaying piston, be provided with push rod; Be provided with control cock in the described air by-pass passage; And communicate with power-assisted chamber in the servo cylinder; Control cock in push rod on the described relaying piston and the air by-pass passage becomes moving and contacts; Described valve body is provided with dust boot; This dust boot is a totally enclosed.
The utility model is compared with known technology, just retracing spring is installed in the servo cylinder, just can solve the eccentric wear phenomenon that on the push rod line of centers, does not make the piston generation because of the application force of retracing spring effectively, and sealing and dustproof, the utility model is simple in structure, and is scientific and reasonable, stable performance, long service life according to the novel automobile clutch servo device of the utility model design motif made, brings positive result of use will for vast auto manufacturing.
The utility model has following accompanying drawing:
Fig. 1 is the utility model prior art constructions scheme drawing;
Fig. 2 is a structural representation of the present utility model.
Accompanying drawing has been represented structure of the present utility model and embodiment, describes the relevant details and the principle of work thereof of embodiment below more in conjunction with the accompanying drawings in detail.This novel automobile clutch servo device comprises valve body 1, servo cylinder 2, control cock 12 and retracing spring 3, described retracing spring 3 is installed in servo cylinder interior 2, and in servo cylinder 2, be provided with band power-assisted push rod 15 boosting pistons 4, boosting piston 4 contacts with retracing spring 3, the elastic force of retracing spring 3 can be acted on the boosting piston 4, the application force of retracing spring 3 can act on the line of centers of power-assisted push rod 15 by boosting piston 4, avoided boosting piston 4 eccentric wear phenomenon at work, described valve body 1 is provided with air by- pass passage 16,10 and oil inlet 5, described air by-pass passage 10 is by control cock 12 controls, and communicate with power-assisted chamber 14 in the servo cylinder 2, described oil inlet 5 is connected with clutch master cylinder, be provided with relaying piston 7 below in the hydraulic pressure chamber 6 of valve body 1, push rod (8) on this relaying piston 7 moves for 12 one-tenth with the control cock in the air by-pass passage 10 and contacts, control cock 12 is come the open and-shut mode of control air path 10 by relaying piston 7, on valve body 1, be provided with dust boot 17, this dust boot 17 is a totally enclosed, playing sealing and dustproof does in order to reach the purpose of its prolongation in service life, when the utility model is not worked, pressure in the hydraulic pressure chamber 6 is zero, boosting piston 4 is in right-hand member return state, exhaust passage 13 is an open mode, air by-pass passage 10 is in closure state, when the utility model is worked, let slip the clutch, the master cylinder pressure oil enters hydraulic pressure chamber 6 by oil inlet 5, because the pressure of pressure oil, promoting relaying piston 7 moves to left, the end face of the push rod 8 on the relaying piston 7 is with after control cock 12 contacts, closed exhaust passage 13, push rod on the relaying piston 78 continues to promote control cock 12 at this moment, pressurized air is entered in the power-assisted chamber 14 in the servo cylinder 2 by air by-pass passage 10, this moment, compressed-air actuated pressure acted on the boosting piston 4, the pressure of hydraulic pressure chamber 6 internal pressure oil acts on the power-assisted push rod 15 simultaneously, power-assisted push rod 15 is moved to the left, overcome the elastic force of retracing spring 3, disengage the clutch, clutch power-assisted intensity improves with the raising of master cylinder hydraulic pressure; Loosening pedal of clutch, hydraulic pressure chamber 6 internal pressures descend, relaying piston 7 moves to right under the effect of spring 9, control cock 12 moves to right under the effect of spring 11, has closed air by-pass passage 10, and this moment, opened exhaust passage 13, air is discharged by exhaust passage 13 in the power-assisted chamber 14, be power-assisted chamber 14 pressure decays, the application force of retracing spring 3 makes boosting piston 4 and power-assisted push rod 5 rapid returns, has promptly finished the power-assisted process of power-transfer clutch.
Claims (4)
1, a kind of novel automobile clutch servo device, include valve body (1), servo cylinder (2), control cock (12) and retracing spring (3), described valve body (1) is provided with air by-pass passage (10) and oil inlet (5), it is characterized in that described retracing spring (3) is installed in the servo cylinder (2), and in described servo cylinder (2), be provided with the band power-assisted push rod (15) boosting piston (4), described retracing spring (3) contacts with boosting piston (4), be provided with relaying piston (7) in the hydraulic pressure chamber (6) of described valve body (1), and on relaying piston (7), be provided with push rod (8).
2, novel automobile clutch servo device as claimed in claim 1 is characterized in that being provided with in the described air by-pass passage (10) control cock (12), and with servo cylinder (2) in power-assisted chamber (14) communicate.
3, novel automobile clutch servo device as claimed in claim 1 is characterized in that control cock (12) in push rod (8) and the air by-pass passage (10) on the described relaying piston (7) becomes moving and contacts.
4, novel automobile clutch servo device as claimed in claim 1 is characterized in that described valve body (1) is provided with dust boot (17), and this dust boot (17) is a totally enclosed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01225114 CN2480211Y (en) | 2001-06-01 | 2001-06-01 | Power-aid device for vehicle clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01225114 CN2480211Y (en) | 2001-06-01 | 2001-06-01 | Power-aid device for vehicle clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2480211Y true CN2480211Y (en) | 2002-03-06 |
Family
ID=33641260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01225114 Expired - Lifetime CN2480211Y (en) | 2001-06-01 | 2001-06-01 | Power-aid device for vehicle clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2480211Y (en) |
-
2001
- 2001-06-01 CN CN 01225114 patent/CN2480211Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: RAYLEIGH GROUP RUIAN AUTOMOBILE ACCESSORIES CO., Free format text: FORMER OWNER: ZHEJIANG RUILI INDUSTRY GROUP CO., LTD. Effective date: 20040430 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20040430 Address after: 325200, No. 12, Nong Qiao West Road, Zhejiang, Ruian Patentee after: Ruian Auto Parts Co., Ltd. of Ruili Group Address before: 325200, No. 12, Nong Qiao West Road, Zhejiang, Ruian Patentee before: Zhejiang Ruili Industry Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110601 Granted publication date: 20020306 |