CN202867630U - Travel compensation valve - Google Patents
Travel compensation valve Download PDFInfo
- Publication number
- CN202867630U CN202867630U CN 201220545544 CN201220545544U CN202867630U CN 202867630 U CN202867630 U CN 202867630U CN 201220545544 CN201220545544 CN 201220545544 CN 201220545544 U CN201220545544 U CN 201220545544U CN 202867630 U CN202867630 U CN 202867630U
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- CN
- China
- Prior art keywords
- steel ball
- cavity
- spring
- ball seat
- clutch
- 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.)
- Withdrawn - After Issue
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model discloses a travel compensation valve. The travel compensation valve comprises a valve body, a first oil pipe connector, a first air exhaust bolt, a first spring, a first steel ball, a first steel ball seat, a second oil pipe connector, a second air exhaust bolt, a second spring, a second steel ball and a second steel ball seat, wherein the first air exhaust bolt and the second air exhaust bolt are respectively provided with an air exhaust hole. An upper cavity, a lower cavity, a left cavity and a right cavity are formed inside the valve body, and the top end of the left cavity, the top end of the lower cavity, the top end of the right cavity and the top end of the upper cavity are respectively and radially inserted into the front portion of the upper cavity, the front portion of the left cavity, the front portion of the lower cavity and the front portion of the right cavity. The travel compensation valve is connected with a clutch master cylinder through the first oil pipe connector and is connected with a clutch working cylinder through the second oil pipe connector. One end of the first spring is fixed to the first air exhaust bolt, the other end of the first spring is connected with the first steel ball seat, and the first steel ball is fixed on the first steel ball seat and seals up the top end of the left cavity. One end of the second spring is fixed to the second air exhaust bolt, the other end of the second spring is connected with the second steel ball seat, and the second steel ball is fixed on the second steel ball seat and seals up the top end of the right cavity.
Description
Technical field
The utility model relates to hydraulicdriven technical field, relates in particular to a kind of stroke recuperation valve, and it is mainly used in automobile liquid pressure type clutch operation.
Background technique
Automobile liquid pressure type clutch operation generally is comprised of clutch pedal, clutch master cylinder, clutch release slave cylinder, withdrawal fork, release bearing and pipe-line system.In order to make clutch separation thorough, necessarily require clutch master cylinder that enough pressure and flow are arranged.Pressure has determined the needed power of clutch separation, and flow has determined that clutch release slave cylinder makes clutch thoroughly separate needed stroke.The cylinder diameter that strengthens clutch master cylinder can augmented flow, but in order to guarantee pressure, the power that is applied to clutch pedal also must increase accordingly.Strengthen the effective travel of master cylinder, also can augmented flow, but clutch pedal will increase stroke accordingly.
Summary of the invention
For overcoming the defective of prior art, the technical problems to be solved in the utility model has provided the stroke recuperation valve that the pedal travel when under a kind of condition not increasing pedaling force clutch thoroughly being separated reduces.
The technical solution of the utility model is: this stroke recuperation valve, and it comprises valve body, the first oil connection, the first exhaust bolt with exhaust port, the first spring, the first steel ball, the first steel ball seat, the second oil connection, the second exhaust bolt with exhaust port, the second spring, the second steel ball, the second steel ball seat; Epicoele, cavity of resorption, left chamber, right chamber are arranged in the valve body, the first oil connection, the first exhaust bolt, the second oil connection, the second exhaust bolt are threadably connected to respectively the epicoele of valve body, left chamber, cavity of resorption, right chamber, the front portion of epicoele is radially inserted on the top in left chamber, the front portion in left chamber is radially inserted on the top of cavity of resorption, the front portion of cavity of resorption is radially inserted on the top in right chamber, and the front portion in right chamber is radially inserted on the top of epicoele; The stroke recuperation valve is connected to clutch master cylinder and is connected to clutch working cylinder by the second oil connection by the first oil connection; One end of the first spring is fixed to the first exhaust bolt and the other end connects the first steel ball seat, the first steel ball is fixed on the first steel ball seat and seals the top in left chamber, one end of the second spring is fixed to the second exhaust bolt and the other end connects the second steel ball seat, and the second steel ball is fixed on the second steel ball seat and seals the top in right chamber.
Stop up oil circuit in the valve body by the first spring compression the first steel ball and the second spring compression the second steel ball, make and have certain hydraulic oil in the clutch working cylinder, so when applying power to pedal, remaining hydraulic oil has played flow-compensated effect, thereby the pedal travel when clutch is thoroughly separated reduces.
Description of drawings
Fig. 1 is the fractionation structural representation according to stroke recuperation valve of the present utility model;
Fig. 2 is the package assembly schematic representation according to stroke recuperation valve of the present utility model;
Fig. 3 a is the fundamental diagram of automobile liquid pressure type clutch operation when applying power to pedal;
Fig. 3 b is the structural representation of stroke recuperation valve essence working portion when applying power to pedal;
Fig. 4 a is the fundamental diagram of automobile liquid pressure type clutch operation when unclamping pedal;
Fig. 4 b is the structural representation of stroke recuperation valve essence working portion when unclamping pedal;
The fundamental diagram of automobile liquid pressure type clutch operation when Fig. 5 is end-state.
Embodiment
Shown in Fig. 1-2, this stroke recuperation valve, it comprises valve body 13, the first oil connection A, the first exhaust bolt 1 with exhaust port 7, the first spring 2, the first steel ball 3, the first steel ball seat 12, the second oil connection B, the second exhaust bolt 6 with exhaust port 7, the second spring 5, the second steel ball 4, the second steel ball seat 14; Epicoele C, cavity of resorption D, left chamber E, right chamber F are arranged in the valve body 13, the first oil connection, the first exhaust bolt, the second oil connection, the second exhaust bolt are threadably connected to respectively the epicoele of valve body, left chamber, cavity of resorption, right chamber, the front portion of epicoele is radially inserted on the top in left chamber, the front portion in left chamber is radially inserted on the top of cavity of resorption, the front portion of cavity of resorption is radially inserted on the top in right chamber, and the front portion in right chamber is radially inserted on the top of epicoele; The stroke recuperation valve is connected to clutch master cylinder 15 and is connected to clutch working cylinder 16 by the second oil connection by the first oil connection; One end of the first spring is fixed to the first exhaust bolt and the other end connects the first steel ball seat, the first steel ball is fixed on the first steel ball seat and seals the top in left chamber, one end of the second spring is fixed to the second exhaust bolt and the other end connects the second steel ball seat, and the second steel ball is fixed on the second steel ball seat and seals the top in right chamber.
Stop up oil circuit in the valve body by the first spring compression the first steel ball and the second spring compression the second steel ball, make and have certain hydraulic oil in the clutch working cylinder, so when applying power to pedal, remaining hydraulic oil has played flow-compensated effect, thereby the pedal travel when clutch is thoroughly separated reduces.
Preferably, the first steel ball seat 12 is provided with the first pit of fixing the first steel ball 3, and the second steel ball seat 14 is provided with the second pit of fixing the second steel ball 4.
The working principle of this stroke recuperation valve is as follows:
When (1) this valve being installed for the first time to oil circuit, in the valve body air can residually be arranged.Because air has higher compression ratio, answer the air in the drain.First, second exhaust bolt is unclamped in rotation, and the exhaust port on the screw is communicated with atmosphere.Promote pedal 8, allow hydraulic oil be full of valve body, discharge air in the valve body.After air is all discharged, tighten first, second exhaust bolt to state shown in Figure 2.
(2) shown in Fig. 3 a-3b, apply certain pressure F1 for pedal 8.Master cylinder piston 9 promotes fluid and flows out clutch master cylinder 15 and enter valve body through the first oil connection A.After pressure acquires a certain degree, because the moving direction of fluid is consistent with the impacting force direction that the second spring 5 compresses the second steel ball 4, compress the impacting force opposite direction of the first steel ball 3 with the first spring 2, be pressed on the first steel ball 3 on the oil circuit so fluid is pushed open by the first spring 2.This moment, fluid was filled full valve body, and flowed into clutch working cylinder 16 through the second oil connection B, and the cylinder piston 10 that pushes the work forward is to left movement.
(3) shown in Fig. 4 a-4b, remove pedaling force F1, clutch master cylinder Returnning spring 11 acts on simultaneously with the reposition force of clutch release fork, slave cylinder piston 10 is moved right, the fluid reverse flow.Because the moving direction of fluid is consistent with the impacting force direction that the first spring 2 compresses the first steel ball 3, compress the impacting force opposite direction of the second steel ball 4 with the second spring 5, so pushing open by the second spring 5, fluid is pressed on the second steel ball 4 on the oil circuit.Last most of fluid has been got back to clutch master cylinder.
(4) because the second spring 5 provides certain impacting force can for the second steel ball 4, so when system reaches balance, can have certain residual pressure in the clutch working cylinder, it is V1 that residual solution force feed, volume are namely arranged in the clutch release slave cylinder.Such as Fig. 5.
(5) to the pedal F1 that exerts pressure, pedal travel is that L1(is V2 from the hydraulic oil volume that clutch master cylinder extrudes), suppose that this moment clutch separation is thorough.Namely satisfy clutch separation thoroughly condition be: pedaling force is F1, pedal travel L1, the volume V1+V2 of hydraulic oil in the clutch release slave cylinder.
(6) if this valve is not installed in the oil circuit, to the pedal F1 that exerts pressure, pedal travel is the oil pressure volume V1+V2 that L2(extrudes from active cylinder), suppose that this moment clutch separation is thorough.Because the cylinder diameter of clutch master cylinder is constant, and V1+V2＞V2, so L2＞L1.Namely under the condition that does not increase pedaling force, by this valve, the pedal travel when clutch is thoroughly separated reduces.
This shows, for reducing pedal travel L1, should increase the volume V1 of clutch working cylinder residual solution force feed, namely increase residual pressure, namely increase the elastic force of the second spring 5, namely the elastic force of the second spring 5 is larger within the specific limits, and pedal travel is less.
The beneficial effect of this valve is as follows:
1, simple for structure, low cost.
2, be widely used in hydraulic system on the every profession and trade.
3, simple to operate, easy to maintenance.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction; any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment all still belong to the protection domain of technical solutions of the utility model.
Claims (2)
1. stroke recuperation valve is characterized in that: it comprises the first exhaust bolt (1), the first spring (2), the first steel ball (3), the first steel ball seat (12), second oil connection (B) of valve body (13), the first oil connection (A), band exhaust port (7), the second exhaust bolt (6), the second spring (5), the second steel ball (4), the second steel ball seat (14) of band exhaust port (7); Epicoele (C), cavity of resorption (D), left chamber (E), right chamber (F) are arranged in the valve body (13), the first oil connection, the first exhaust bolt, the second oil connection, the second exhaust bolt are threadably connected to respectively the epicoele of valve body, left chamber, cavity of resorption, right chamber, the front portion of epicoele is radially inserted on the top in left chamber, the front portion in left chamber is radially inserted on the top of cavity of resorption, the front portion of cavity of resorption is radially inserted on the top in right chamber, and the front portion in right chamber is radially inserted on the top of epicoele; The stroke recuperation valve is connected to clutch master cylinder (15) and is connected to clutch working cylinder (16) by the second oil connection by the first oil connection; One end of the first spring is fixed to the first exhaust bolt and the other end connects the first steel ball seat, the first steel ball is fixed on the first steel ball seat and seals the top in left chamber, one end of the second spring is fixed to the second exhaust bolt and the other end connects the second steel ball seat, and the second steel ball is fixed on the second steel ball seat and seals the top in right chamber.
2. stroke recuperation valve according to claim 1, it is characterized in that: the first steel ball seat (12) is provided with the first pit of fixing the first steel ball (3), and the second steel ball seat (14) is provided with the second pit of fixing the second steel ball (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220545544 CN202867630U (en) | 2012-10-23 | 2012-10-23 | Travel compensation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220545544 CN202867630U (en) | 2012-10-23 | 2012-10-23 | Travel compensation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867630U true CN202867630U (en) | 2013-04-10 |
Family
ID=48034352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220545544 Withdrawn - After Issue CN202867630U (en) | 2012-10-23 | 2012-10-23 | Travel compensation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867630U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927153A (en) * | 2012-10-23 | 2013-02-13 | 上汽通用五菱汽车股份有限公司 | Travel compensation valve |
| CN105108773A (en) * | 2015-08-20 | 2015-12-02 | 温州乐控节能科技有限公司 | Robot joint and robot |
-
2012
- 2012-10-23 CN CN 201220545544 patent/CN202867630U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927153A (en) * | 2012-10-23 | 2013-02-13 | 上汽通用五菱汽车股份有限公司 | Travel compensation valve |
| CN102927153B (en) * | 2012-10-23 | 2015-07-29 | 上汽通用五菱汽车股份有限公司 | A kind of travel compensation valve |
| CN105108773A (en) * | 2015-08-20 | 2015-12-02 | 温州乐控节能科技有限公司 | Robot joint and robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130410 Effective date of abandoning: 20150729 |
|
| RGAV | Abandon patent right to avoid regrant |