CN102927153B - A kind of travel compensation valve - Google Patents
A kind of travel compensation valve Download PDFInfo
- Publication number
- CN102927153B CN102927153B CN201210407241.9A CN201210407241A CN102927153B CN 102927153 B CN102927153 B CN 102927153B CN 201210407241 A CN201210407241 A CN 201210407241A CN 102927153 B CN102927153 B CN 102927153B
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- CN
- China
- Prior art keywords
- steel ball
- ball seat
- spring
- oil connection
- clutch
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- 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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Abstract
The present invention discloses a kind of travel compensation valve, and it comprises the second exhaust bolt, the second spring, the second steel ball, the second steel ball seat of valve body, the first oil connection, the first exhaust bolt being with exhaust port, the first spring, the first steel ball, the first steel ball seat, the second oil connection, band exhaust port; Have epicoele, cavity of resorption, left chamber, right chamber in valve body, the top in the top in left chamber, the top of cavity of resorption, right chamber, the top of epicoele radially insert the front portion of epicoele, the front portion in left chamber, the front portion of cavity of resorption, the front portion in right chamber respectively; Travel compensation valve is connected to clutch master cylinder by the first oil connection and is connected to clutch working cylinder by the second oil connection; One end of first spring is fixed to the first exhaust bolt and the other end connects the first steel ball seat, first steel ball is fixed on the first steel ball seat and the top in closed left chamber, one end of 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 the top in closed right chamber.
Description
Technical field
The present invention relates to hydraulicdriven technical field, particularly relate to a kind of travel compensation valve, it is mainly used in automobile liquid pressure type clutch operation.
Background technique
Automobile liquid pressure type clutch operation is generally made up 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, clutch master cylinder is necessarily required to have enough pressure and flow.Pressure determines the power required for clutch separation, and flow determines clutch release slave cylinder makes clutch thoroughly be separated required stroke.The cylinder diameter strengthening clutch master cylinder can augmented flow, but in order to ensure pressure, the power being 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 defect of prior art, the travel compensation valve that pedal travel when the technical problem to be solved in the present invention makes clutch thoroughly be separated under there is provided a kind of condition not increasing pedaling force reduces.
Technological scheme of the present invention is: this travel compensation valve, and it comprises the second exhaust bolt, the second spring, the second steel ball, the second steel ball seat of valve body, the first oil connection, the first exhaust bolt being with exhaust port, the first spring, the first steel ball, the first steel ball seat, the second oil connection, band exhaust port; Epicoele, cavity of resorption, left chamber, right chamber is had in valve body, first oil connection, the first exhaust bolt, the second oil connection, the second exhaust bolt are threadably connected to the epicoele of valve body, left chamber, cavity of resorption, right chamber respectively, 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; Travel compensation valve is connected to clutch master cylinder by the first oil connection and is connected to clutch working cylinder by the second oil connection; One end of first spring is fixed to the first exhaust bolt and the other end connects the first steel ball seat, first steel ball is fixed on the first steel ball seat and the top in closed left chamber, one end of 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 the top in closed right chamber.
The oil circuit in valve body is blocked by the first spring compression first steel ball and the second spring compression second steel ball, make in clutch working cylinder, there is certain hydraulic oil, so when applying power to pedal, remaining hydraulic oil serves flow-compensated effect, thus pedal travel when clutch being thoroughly separated under the condition not increasing pedaling force reduces.
Accompanying drawing explanation
Fig. 1 is the fractionation structural representation according to travel compensation valve of the present invention;
Fig. 2 is the package assembly schematic diagram according to travel compensation valve of the present invention;
Fig. 3 a is the fundamental diagram of the automobile liquid pressure type clutch operation when applying power to pedal;
Fig. 3 b is the structural representation of the travel compensation valve substantial work part when applying power to pedal;
Fig. 4 a is the fundamental diagram of the automobile liquid pressure type clutch operation when unclamping pedal;
Fig. 4 b is the structural representation of the travel compensation valve substantial work part when unclamping pedal;
The fundamental diagram of automobile liquid pressure type clutch operation when Fig. 5 is end-state.
Embodiment
As shown in Figure 1-2, this travel compensation valve, it comprises valve body 13, first oil connection A, the first exhaust bolt 1, first spring 2, first steel ball 3, first steel ball seat 12, second oil connection B of band exhaust port 7, the second exhaust bolt 6, second spring 5, second steel ball 4, second steel ball seat 14 of band exhaust port 7; Epicoele C, cavity of resorption D, left chamber E, right chamber F is had in valve body 13, first oil connection, the first exhaust bolt, the second oil connection, the second exhaust bolt are threadably connected to the epicoele of valve body, left chamber, cavity of resorption, right chamber respectively, 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; Travel compensation valve is connected to clutch master cylinder 15 by the first oil connection and is connected to clutch working cylinder 16 by the second oil connection; One end of first spring is fixed to the first exhaust bolt and the other end connects the first steel ball seat, first steel ball is fixed on the first steel ball seat and the top in closed left chamber, one end of 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 the top in closed right chamber.
The oil circuit in valve body is blocked by the first spring compression first steel ball and the second spring compression second steel ball, make in clutch working cylinder, there is certain hydraulic oil, so when applying power to pedal, remaining hydraulic oil serves flow-compensated effect, thus pedal travel when clutch being thoroughly separated under the condition not increasing pedaling force reduces.
Preferably, the first steel ball seat 12 is provided with the first pit fixing the first steel ball 3, and the second steel ball seat 14 is provided with the second pit fixing the second steel ball 4.
The working principle of this travel compensation valve is as follows:
(1), when first this valve of installation is to oil circuit, in valve body, air can be remained.Because air has higher compression ratio, answer the air in drain.First, second exhaust bolt is unclamped in rotation, and the exhaust port on screw is communicated with air.Promote pedal 8, allow hydraulic oil be full of valve body, air in exits valve body.After air is all discharged, tighten state shown in first, second exhaust bolt to Fig. 2.
(2) as shown in Figure 3 a-3b, certain pressure F1 is applied to 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, contrary with the impacting force direction that the first spring 2 compresses the first steel ball 3, so fluid pushes the first steel ball 3 be pressed on by the first spring 2 on oil circuit open.Now fluid fills full valve body, and flows 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) as shown in Fig. 4 a-4b, remove pedaling force F1, clutch master cylinder Returnning spring 11 acts on the reposition force of clutch release fork simultaneously, slave cylinder piston 10 is moved right, 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, contrary with the impacting force direction that the second spring 5 compresses the second steel ball 4, so fluid pushes the second steel ball 4 be pressed on by the second spring 5 on oil circuit open.Last most of fluid has got back to clutch master cylinder.
(4) because the second spring 5 provides certain impacting force can to the second steel ball 4, so when system reaches balance, can have certain residual pressure in clutch working cylinder, namely have residual solution force feed in clutch release slave cylinder, volume is V1.As Fig. 5.
(5) apply pressure F1 to pedal, pedal travel is L1(is V2 from the hydraulic oil volume that clutch master cylinder extrudes), assuming that now clutch separation is thorough.Namely meet clutch separation thoroughly condition be: pedaling force is F1, pedal travel L1, the volume V1+V2 of hydraulic oil in clutch release slave cylinder.
(6) if do not install this valve in oil circuit, apply pressure F1 to pedal, pedal travel is the oil pressure volume V1+V2 that L2(extrudes from active cylinder), assuming that now 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 not increasing pedaling force, by this valve, pedal travel when clutch is thoroughly separated reduces.
As can be seen here, 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, the hydraulic system in every profession and trade is widely used in.
3, simple to operate, easy to maintenance.
The above; it is only preferred embodiment of the present invention; not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong to the protection domain of technical solution of the present invention.
Claims (2)
1. a travel compensation valve, is characterized in that: it comprises the second exhaust bolt (6), the second spring (5), the second steel ball (4), the second steel ball seat (14) of valve body (13), the first oil connection (A), the first exhaust bolt (1) being with exhaust port (7), the first spring (2), the first steel ball (3), the first steel ball seat (12), the second oil connection (B), band exhaust port (7); Epicoele (C), cavity of resorption (D), left chamber (E), right chamber (F) is had in valve body (13), first oil connection, the first exhaust bolt, the second oil connection, the second exhaust bolt are threadably connected to the epicoele of valve body, left chamber, cavity of resorption, right chamber respectively, 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; Travel compensation valve is connected to clutch master cylinder (15) by the first oil connection and is connected to clutch working cylinder (16) by the second oil connection; One end of first spring is fixed to the first exhaust bolt and the other end connects the first steel ball seat, first steel ball is fixed on the first steel ball seat and the top in closed left chamber, one end of 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 the top in closed right chamber.
2. travel compensation valve according to claim 1, is characterized in that: the first steel ball seat (12) is provided with the first pit fixing the first steel ball (3), and the second steel ball seat (14) is provided with the second pit fixing the second steel ball (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210407241.9A CN102927153B (en) | 2012-10-23 | 2012-10-23 | A kind of travel compensation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210407241.9A CN102927153B (en) | 2012-10-23 | 2012-10-23 | A kind of travel compensation valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102927153A CN102927153A (en) | 2013-02-13 |
| CN102927153B true CN102927153B (en) | 2015-07-29 |
Family
ID=47642040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210407241.9A Expired - Fee Related CN102927153B (en) | 2012-10-23 | 2012-10-23 | A kind of travel compensation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102927153B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201700042094A1 (en) * | 2017-04-14 | 2018-10-14 | Italpresse Ind Spa | PRESSOCOLATA MACHINE WITH AUTOMATIC AIR BLEEDING SYSTEM |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2525740A (en) * | 1946-11-19 | 1950-10-10 | Dunlop Rubber Co | Master cylinder |
| US4566277A (en) * | 1981-05-21 | 1986-01-28 | Itt Industries, Inc. | Pressurized fluid supplying arrangement particularly a master cylinder of a clutch |
| CN1179737A (en) * | 1995-04-05 | 1998-04-22 | 坎贝尔·豪斯费尔德/斯科特·费策尔公司 | Airless paint sprayer outlet check valve |
| CN2321677Y (en) * | 1997-10-22 | 1999-06-02 | 王文彪 | Hydraulic braking booster for vehicle |
| CN201129509Y (en) * | 2007-12-21 | 2008-10-08 | 张强 | One-way back pressure oil compensating valve |
| CN101678823A (en) * | 2007-06-19 | 2010-03-24 | 卢卡斯汽车股份有限公司 | Brake equipment for a land vehicle |
| CN202176657U (en) * | 2010-05-14 | 2012-03-28 | F.波尔希名誉工学博士公司 | Residual pressure holding valve and suspension support |
| CN202867630U (en) * | 2012-10-23 | 2013-04-10 | 上汽通用五菱汽车股份有限公司 | Travel compensation valve |
-
2012
- 2012-10-23 CN CN201210407241.9A patent/CN102927153B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2525740A (en) * | 1946-11-19 | 1950-10-10 | Dunlop Rubber Co | Master cylinder |
| US4566277A (en) * | 1981-05-21 | 1986-01-28 | Itt Industries, Inc. | Pressurized fluid supplying arrangement particularly a master cylinder of a clutch |
| CN1179737A (en) * | 1995-04-05 | 1998-04-22 | 坎贝尔·豪斯费尔德/斯科特·费策尔公司 | Airless paint sprayer outlet check valve |
| CN2321677Y (en) * | 1997-10-22 | 1999-06-02 | 王文彪 | Hydraulic braking booster for vehicle |
| CN101678823A (en) * | 2007-06-19 | 2010-03-24 | 卢卡斯汽车股份有限公司 | Brake equipment for a land vehicle |
| CN201129509Y (en) * | 2007-12-21 | 2008-10-08 | 张强 | One-way back pressure oil compensating valve |
| CN202176657U (en) * | 2010-05-14 | 2012-03-28 | F.波尔希名誉工学博士公司 | Residual pressure holding valve and suspension support |
| CN202867630U (en) * | 2012-10-23 | 2013-04-10 | 上汽通用五菱汽车股份有限公司 | Travel compensation valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102927153A (en) | 2013-02-13 |
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Granted publication date: 20150729 Termination date: 20201023 |
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| CF01 | Termination of patent right due to non-payment of annual fee |