CN102213280A - Double-section automobile clutch master cylinder - Google Patents
Double-section automobile clutch master cylinder Download PDFInfo
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- CN102213280A CN102213280A CN 201010137281 CN201010137281A CN102213280A CN 102213280 A CN102213280 A CN 102213280A CN 201010137281 CN201010137281 CN 201010137281 CN 201010137281 A CN201010137281 A CN 201010137281A CN 102213280 A CN102213280 A CN 102213280A
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- piston
- master cylinder
- slide bar
- joint
- pump housing
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Abstract
The invention discloses a double-section automobile clutch master cylinder. The master cylinder is divided into upper and lower sections according to using conditions of a clutch master cylinder on an automobile. Because the upper section works in a normal pressure state under actual working conditions, an upper-section shell can be replaced by die-casting aluminum or engineering plastics; therefore, the cost and machining difficulty can be greatly reduced. The length of a lower-section shell is only half of that of an original product; therefore, the machining is simple, and the quality is easily guaranteed. The master cylinder cancels a compensating valve of the original product, and the service life of the master cylinder is greatly prolonged.
Description
Technical field
The invention belongs to the auto parts machinery field, relate to a kind of double-joint type automobile clutch master cylinder.
Background technique
At present, used clutch booster all is to provide pressure by master cylinder on the automobile both at home and abroad, and relying on hydraulic oil in hydraulic oil container and the high-pressure oil pipe as medium, the pressure transmission that foot treadle is provided makes pressurized air enter cylinder barrel and does work to the air valve switch on the clutch booster.Because existing master cylinder all is to continue to use traditional structure to produce, thereby cost of production is higher, difficulty of processing is also very big.Particularly the sealing means of recuperation valve is unreasonable, makes that the life-span of master cylinder is very short.
The purpose of this invention is to provide the simple double-joint type automobile clutch of a kind of processing rational in infrastructure master cylinder, not only can reduce production costs, and can also improve the working life of automobile clutch master cylinder greatly.
In order to illustrate that existing product has superiority than existing product, now the essential structure and the working principle of existing product are briefly introduced:
Consult shown in Figure 1.
Original master cylinder
3 is the master cylinder push rod, and 1 is hydraulic oil container, and in automobile dispatched from the factory preceding and later use, this fuel tank will maintain enough hydraulic oil all the time.Hydraulic oil in the case enters the inner chamber of total pump case 14 by oil pipe 2 and master cylinder oil intake nozzle 6.The mounting hole 4 that is connected with the foot treadle support in addition on the housing, stop screw 7, the housing inner chamber is equipped with total pump piston 8, and leather cup 5 on the master cylinder, master cylinder down cup 9 are housed on this piston, and recuperation valve 10, recuperation valve spring 11, compensation valve seat 12 also are equipped with in the lower end of this piston.The following total pump piston return spring 13 that also is equipped with of housing inner chamber, the lower end of housing have high-pressure oil pipe 15 to be connected with the oil intake nozzle 17 of clutch booster.
Its working principle is:
Step on clutch foot plate before the automobile gear shift, master cylinder push rod 3 will promote total pump piston 8 and move down, the top and the stop screw 7 of recuperation valve 10 are separated, and at this moment the recuperation valve leather cup will tightly contact with the bottom plane of total pump piston and form the sealing surface of an integral body with total pump piston down cup 9.When total pump piston continues when descending, the hydraulic oil below the sealing face will enter by high-pressure oil pipe 15 and oil intake nozzle in the middle of the big oil pocket of clutch booster with certain pressure.The pressure that hydraulic oil produces can be opened the air valve switch of clutch booster, and pneumatically promotes the big piston acting, makes clutch be in separated state;
When gearshift finishes when unclamping foot treadle, master cylinder push rod return, total pump piston is return under the effect of total pump piston return spring 13.The big piston return of clutch booster, clutch is in fit-state again.
Because above structure has caused this product to exist following drawback in the middle of using:
1. the inner chamber of total pump case (14) is the dark blind hole of 200mm nearly, and requirement on machining accuracy is very high.The consumption of not only processing difficulties, and cutter is also very big.Nonetheless, the processed workpiece quality also often upper semisection be better than lower semisection, and real useful part is a lower semisection.Therefore the quality of this product is difficult to guarantee.
2. on the piston (8) a microscler sliding eye is arranged, difficulty of processing is also very big
3. the internal structure relative complex of recuperation valve (10) is easy to damage, and is the weakest position of this product.
4. complex structure is installed and is adjusted all pretty troublesome.
Therefore, existing product has improved necessity, increases the new varieties of automobile clutch master cylinder.
Summary of the invention
The object of the present invention is to provide a kind of double-joint type automobile clutch master cylinder.Promptly master cylinder is divided into up and down joint, in actual conditions, under atmospheric pressure state, works, therefore can will go up the joint shell with nylon or engineering plastics manufacturing because go up joint according to the use condition of clutch master cylinder on automobile.Can reduce cost greatly and difficulty of processing like this.The length that saves shell down also has only half of original product, and therefore processing is simple, and quality also guarantees easily.
Consult shown in Figure 2.
Existing master cylinder
A kind of double-joint type automobile clutch master cylinder comprises: 1 fuel tank, 2 oil pipes, 3 master cylinder push rods, save mounting hole on 4,5 times snap rings, 6 master cylinder oil inlet holes, 7 slide bars, 8 connecting bolts, 9 piston cups, snap ring on 10,11 slide bar return springs, 12 pistons, 13 piston return springs, 14 pump housings are joint down, 15 high-pressure oil pipes, 16 times joint mounting holes, 17 slide bar leather cups, 18 piston wearing rings, 19 seal rings, 20O type circle saves on 21 pump housings, 22 piston bottom outlets.
The upper end-hole of joint 21 can allow master cylinder push rod 3 to insert on the described pump housing.Pump housing upper end one side has the joint of going up mounting hole 4, and the lower end of the pump housing adopts close-fitting mode to embed the upper end-hole of joint 14 under the pump housing.Its connecting part is sealed by O type circle 20, and fixing by connecting bolt 8.The inner chamber that saves on the pump housing is equipped with slide bar 7, slide bar return spring 11, slide bar leather cup 17 and last snap ring 10.
The described pump housing top of joint 14 down has master cylinder oil inlet hole 6, also has joint mounting hole 16 down.Inner chamber is equipped with the piston 12 that has piston bottom outlet 22, following snap ring 5.Piston cup 9 is equipped with on piston top, and piston wearing ring 18 is equipped with in the bottom.Inner chamber at piston is equipped with seal ring 19.The bottom of piston also has piston return spring 13.The pump housing bottom of joint down has high-pressure oil pipe 15 to link to each other with clutch booster.
The technical solution used in the present invention and working principle:
Double-joint type automobile clutch master cylinder of the present invention is made up of two joints up and down.Available nylon of last joint or plastics manufacturing can reduce cost greatly.Following joint shortens, and the back is easy to be processed, and can save processing cost and cutter expense again.Microscler mounting hole 16 is arranged on the described lower punch section shell,, therefore can replace the master cylinder of multiple model because the pitch-row in this hole can be held the mounting hole of multiple master cylinder.
When let slip the clutch, master cylinder push rod 3 will move down, and then promotion slide bar 7 moves down, slide bar return spring 11 is arranged at the bottom of slide bar, this slide bar and slide bar return spring all are installed in the chamber of joint 21 on the pump housing, thereby under the effect of return spring, slide bar can stepping on and lifting and pump along with foot treadle, when slide bar moves down, its ground level elder generation Contact Seal ring 19, piston bottom outlet 22 is closed, drive piston then and continue to move down, so just the hydraulic oil in the lower punch section shell inner chamber can be pushed in the clutch booster and makes its acting through pressuring oil pipe 15.
When lifting clutch pedal, master cylinder push rod 3 will on move, slide bar 7 is return under the effect of slide bar return spring 11, piston is return under the effect of piston return spring 13, when piston head touched down snap ring 5, return stopped.And slide bar also moves on continuing, make and form the gap between slide bar bottom plane and the seal ring 19, pent piston bottom outlet is opened, like this, the hydraulic oil in the fuel tank 1 will pass through oil pipe 2, master cylinder oil inlet hole 6, piston bottom outlet 22 and enters into the lower punch section shell inner chamber once more and use oil require when replenishing the clutch booster acting.
Described double-joint type master cylinder has been cancelled baroque recuperation valve in the existing product, thereby has also increased the working life of master cylinder greatly.
Clearly, the embodiment among the present invention and the description of accompanying drawing are understood the present invention just to better, to the protection domain of claim without limits.Those skilled in the art make simple adjustment or improvement to accompanying drawing and the foregoing description after reading this specification, still in the protection domain of following claim.
：
The present invention has following actively useful effect
1. this product is divided into two joints up and down with the master cylinder in the original automobile clutch booster system, makes the processing of master cylinder become very easy, and this is a major reform in the automobile clutch booster system.
2. the upward joint housing of this product can be made with nylon or plastics, thereby can reduce cost greatly.
3. the length of the following joint of this product is half of original product length, therefore can save the processing charges and the cost of charp tool.
4. this product has been cancelled baroque recuperation valve in the existing product, has reduced the fault point, thereby has also increased the working life of master cylinder greatly.
5. this product is installed simply, and is easy to use, safe and reliable, and great promotional value is arranged
Description of drawings
Fig. 1 is the schematic representation of master cylinder existing product:
Fig. 2 is a double-joint type master cylinder structural representation of the present invention.
Embodiment
Consult Fig. 2, shown in, a kind of double-joint type automobile clutch master cylinder comprises: 1 fuel tank, 2 oil pipes, 3 master cylinder push rods save mounting hole, 5 times snap rings, 6 master cylinder oil inlet holes on 4,7 slide bars, 8 connecting bolts, 9 piston cups, snap ring on 10,11 slide bar return springs, 12 pistons, 13 piston return springs, 14 pump housings are joint down, 15 high-pressure oil pipes, 16 times joint mounting holes, 17 slide bar leather cups, 18 piston wearing rings, 19 seal rings, 20O type circle saves on 21 pump housings, 22 piston bottom outlets.
The upper end-hole of joint 21 can allow master cylinder push rod 3 to insert on the described pump housing.Pump housing upper end one side has the joint of going up mounting hole 4, and the lower end of the pump housing adopts close-fitting mode to embed the upper end-hole of joint 14 under the pump housing.Its connecting part is sealed by O type circle 20, and fixing by connecting bolt 8.The inner chamber that saves on the pump housing is equipped with slide bar 7, slide bar return spring 11, slide bar leather cup 17 and last snap ring 10.
The described pump housing top of joint 14 down has master cylinder oil inlet hole 6, also has joint mounting hole 16 down.Inner chamber is equipped with the piston 12 that has piston bottom outlet 22, following snap ring 5.Piston cup 9 is equipped with on piston top, and piston wearing ring 18 is equipped with in the bottom.Inner chamber at piston is equipped with seal ring 19.The bottom of piston also has piston return spring 13.The pump housing bottom of joint down has high-pressure oil pipe 15 to link to each other with clutch booster.
This product is installed simple, and is easy to use, safe and reliable, and great promotional value is arranged.
Claims (3)
1. double-joint type automobile clutch master cylinder comprises:
Joint (21), the pump housing save (14) down on the pump housing, and joint connection back is fixed with fixing bolt (8) up and down, and the connecting part seals with O type circle (20);
It is characterized in that: described slide bar (7), under the effect of master cylinder push rod (3) and slide bar return spring (11), can do and pump, when descending, the slide bar bottom plane props up seal ring (19) small piston vent (22) is sealed, promoting piston (12) then continues descending, the hydraulic oil that the pump housing is saved in the inner chamber down pushes in the clutch booster through high-pressure oil pipe (15), makes its acting; When slide bar is up, piston is return under the effect of piston return spring (13), form the gap between slide bar bottom plane and the seal ring, the piston bottom outlet is opened, hydraulic oil in the fuel tank (1) will pass through the gap of oil pipe (2), master cylinder oil inlet hole (6) and slide bar and piston inner hole and the inner chamber that the piston bottom outlet enters joint under the pump housing, with the deficiency of compensation hydraulic oil;
2. double-joint type automobile clutch master cylinder according to claim 1 is characterized in that: described slide bar leather cup (17) and last snap ring (10) are installed in the lower end of joint (21) on the pump housing, upwards overflow to prevent hydraulic oil;
3. double-joint type automobile clutch master cylinder according to claim 1 is characterized in that: piston cup (9) is arranged at described piston top, and piston piston wearing ring 18 is arranged at the piston bottom, can guarantee that piston has long working life.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010137281 CN102213280A (en) | 2010-04-01 | 2010-04-01 | Double-section automobile clutch master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010137281 CN102213280A (en) | 2010-04-01 | 2010-04-01 | Double-section automobile clutch master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102213280A true CN102213280A (en) | 2011-10-12 |
Family
ID=44744728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010137281 Pending CN102213280A (en) | 2010-04-01 | 2010-04-01 | Double-section automobile clutch master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102213280A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016141638A1 (en) * | 2015-03-06 | 2016-09-15 | 洛阳市伟林液压机械有限公司 | Operation method for tractor clutch operation device having hydraulic assistance |
| CN108443356A (en) * | 2018-04-28 | 2018-08-24 | 芜湖稳乐制动系统有限公司 | Clutch power-assisted master cylinder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58188743A (en) * | 1982-04-28 | 1983-11-04 | Aisin Seiki Co Ltd | Master cylinder for vehicle |
| US5094079A (en) * | 1987-10-22 | 1992-03-10 | Automotive Products Plc | Master cylinder assembly |
| CN2723763Y (en) * | 2004-09-09 | 2005-09-07 | 李学龙 | Anti-bias wearing clutch hydraulic main cylinder for automobile |
| CN201086705Y (en) * | 2007-09-29 | 2008-07-16 | 傅强 | Master pump structure |
| CN201209641Y (en) * | 2008-06-20 | 2009-03-18 | 浙江吉利汽车研究院有限公司 | Clutch master cylinder assembly |
-
2010
- 2010-04-01 CN CN 201010137281 patent/CN102213280A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58188743A (en) * | 1982-04-28 | 1983-11-04 | Aisin Seiki Co Ltd | Master cylinder for vehicle |
| US5094079A (en) * | 1987-10-22 | 1992-03-10 | Automotive Products Plc | Master cylinder assembly |
| CN2723763Y (en) * | 2004-09-09 | 2005-09-07 | 李学龙 | Anti-bias wearing clutch hydraulic main cylinder for automobile |
| CN201086705Y (en) * | 2007-09-29 | 2008-07-16 | 傅强 | Master pump structure |
| CN201209641Y (en) * | 2008-06-20 | 2009-03-18 | 浙江吉利汽车研究院有限公司 | Clutch master cylinder assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016141638A1 (en) * | 2015-03-06 | 2016-09-15 | 洛阳市伟林液压机械有限公司 | Operation method for tractor clutch operation device having hydraulic assistance |
| CN108443356A (en) * | 2018-04-28 | 2018-08-24 | 芜湖稳乐制动系统有限公司 | Clutch power-assisted master cylinder |
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Effective date of abandoning: 20111012 |
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