CN103148122A - Clutch master pump and clutch assembly equipped with clutch master pump - Google Patents
Clutch master pump and clutch assembly equipped with clutch master pump Download PDFInfo
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- CN103148122A CN103148122A CN2013100807088A CN201310080708A CN103148122A CN 103148122 A CN103148122 A CN 103148122A CN 2013100807088 A CN2013100807088 A CN 2013100807088A CN 201310080708 A CN201310080708 A CN 201310080708A CN 103148122 A CN103148122 A CN 103148122A
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- clutch master
- oil
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention relates to a clutch master pump and a clutch assembly equipped with the clutch master pump. A pump body is internally provided with an air cylinder (22), an ejection rod shaft (6) and a return spring (7); an air inflow seat (2) is connected with the pump body; the clutch master pump is characterized in that the pump body is internally provided with an oil cylinder (12); a power-assistance piston (5) is mounted at the front end of the ejection rod shaft (6); the power-assistance piston (5) and the front end of the pump body form the air cylinder (22); the rear end of the ejection rod shaft (6) and the rear end of the pump body form the oil cylinder (12); and the air cylinder (22) is linked with the oil cylinder (12) through reciprocating motion of the ejection rod shaft (6). The clutch master pump converts pneumatic power-assistance clutch to hydraulic power-assistance clutch through manipulation of a clutch pedal, so that the traditional hydraulic power-assistance clutch mode through the manipulation of the clutch pedal is changed, the manipulation comfortability is improved, and the working strength of a driver is reduced.
Description
Technical field
The present invention relates to the automobile clutch field, specifically relate to a kind of clutch master cylinder and the assembly of this clutch master cylinder is housed.
Background technique
Clutch master cylinder is the part that is connected to clutch foot plate and is connected with clutch booster by oil pipe.Effect is to gather the pedal travel information exchange to cross the effect of booster and make clutch realize separating.When controlled clutch separated, master cylinder was used for the clutch separation power-assisted, cuts off power temporarily, realized the easily effect of gearshift.Therefore, the clutch master cylinder performance directly has influence on the separation of clutch and the operation of Motor Vehicle.
The patent No. is that 201120395739.9 Chinese utility model patent discloses a kind of clutch master cylinder, comprises valve body, main piston and push rod; Main piston is arranged in valve body, consists of oil pocket between main piston and valve body; One end of push rod is provided with pushing block, and the other end of push rod stretches out outside valve body; Valve body is provided with filler opening, oil outlet; The end that valve body is positioned at oil pocket is provided with oil transportation channel and centre valve; Filler opening is communicated with oil transportation channel, and oil outlet is communicated with oil pocket; Centre valve is with oil pocket and oil transportation channel isolation; Be provided with return spring between centre valve and main piston; Clutch master cylinder also comprises sub-piston; The periphery of main piston is provided with seal ring; Sub-piston is between main piston and pushing block and contact with pushing block with main piston.Although be provided with seal ring on the main piston of this clutch master cylinder and piston ring, have seal ring and the advantage such as body wall is not easy to wear, shelf life is long.But the assist type of this clutch master cylinder is single, using effect is relatively poor.
Summary of the invention
Find in this product development process that the heavy problem of pedaling force appears in conventional clutch pedal control hydraulic booster clutch mode, by analysis: due to the restriction of operator cabin arrangement space, can't realize hydraulic pressure and adjust the clutch pedal lever and recently reduce the clutch-pedal load value by strengthening the hydraulic clutch master cylinder cylinder diameter, to reduce driving fatigue intensity.
For overcoming above-mentioned shortcomings and deficiencies of the prior art, the purpose of this invention is to provide a kind of clutch pedal that adopts and handle the clutch master cylinder that is converted to the hydraulic booster clutch through air assisted, changed the mode of conventional clutch pedal control hydraulic pressure or air pressure assisted clutch; Improve the travelling comfort of handling, reduced driver's working strength.
For achieving the above object, the invention provides a kind of clutch master cylinder, comprise the pump housing, be provided with cylinder and ejector rob axis and return spring in this pump housing, also connecting air inlet seat on the described pump housing, also have oil cylinder in the described pump housing, the front end of described ejector rob axis is equipped with boosting piston, the front end of boosting piston and the described pump housing consists of cylinder, and the rear end of described ejector rob axis and the rear end of the described pump housing consist of oil cylinder, and described cylinder is by to-and-fro motion and the interlock of described oil cylinder of ejector rob axis.
. preferably, the end of described cylinder is fixedly connected with described air inlet seat, and in order to guarantee the tightness of cylinder, the joint of cylinder and described air inlet seat is provided with seal washer, or adopts other modes that is tightly connected, to guarantee tightness.
Preferably, offer filler opening and oil outlet on the axial direction of described oil cylinder in above-mentioned arbitrary scheme, the cylindrical center of filler opening and oil outlet is perpendicular to the axis of the described pump housing.
In above-mentioned arbitrary scheme preferably, the offering in the radial direction compensate opening and connect with described oil cylinder of described oil cylinder.
Preferably, described oil inlet hole is by described compensate opening and described oil cylinder conducting in above-mentioned arbitrary scheme.
In above-mentioned arbitrary scheme preferably, the rear end of described ejector rob axis offers axial oil duct, the axially radial direction oil conducting of an end of oil duct and ejector rob axis rear end, the other end is equipped with reflux valve, opens/close by what control described reflux valve the flow of controlling liquid in described oil cylinder.
Preferably, the rear end of described ejector rob axis is by piston ring and described oil cylinder inner wall movable contact on it in above-mentioned arbitrary scheme.
Preferably, offer the axial admission road on the front end shaft core position of described ejector rob axis in above-mentioned arbitrary scheme, the radial air inlet road conducting that an end in axial admission road and described ejector rob axis front end are offered in the radial direction.
Preferably, offer suction port on described air inlet seat in above-mentioned arbitrary scheme, the intake duct of offering on described suction port and described air inlet seat connects and is connected.
Preferably, described intake duct is by the valve on described air inlet seat and the road conducting of described axial admission in above-mentioned arbitrary scheme.
Preferably, the bottom of described cylinder offers exhaust port in above-mentioned arbitrary scheme, and exhaust port is by pod apertures and the cylinder conducting of cylinder bottom.
Preferably, an end of described return spring contacts with boosting piston on described ejector rob axis in above-mentioned arbitrary scheme, and the other end contacts with the bottom interior wall of described cylinder and to pass through the positioning end of cylinder bottom spacing.
Preferably, described boosting piston is fixedly connected with described ejector rob axis by the axle sleeve on described ejector rob axis in above-mentioned arbitrary scheme.
Preferably, on the top of described ejector rob axis, cover has spring, an end of spring and the valve movable contact on described air inlet seat, the other end and described axle sleeve movable contact in above-mentioned arbitrary scheme.
Preferably, described air inlet seat is fixedly connected with an end of described push rod by the attachment hole that is located thereon section in above-mentioned arbitrary scheme, and the other end of push rod is fixedly connected with clutch pedal.
Preferably, described oil outlet is connected with the chamber perforation of described clutch separation in above-mentioned arbitrary scheme.
Second purpose of the present invention is to provide a kind of clutch assembly, and this assembly is equipped with the clutch master cylinder in the present invention.
Compared with prior art the invention has the advantages that: the clutch master cylinder in the present invention is arranged between clutch and clutch pedal, does not need the additional mechanical transmission component.Be applicable to handle through the gas power-assisted by clutch pedal and be converted in the Motor Vehicle of hydraulic power assisted clutch system, be particularly suitable for being applied on medium-sized, light truck.
Description of drawings
Fig. 1 is the structural representation of a preferred embodiment of the clutch master cylinder in the present invention.
reference character in figure: push rod: 1, air inlet seat: 2, valve: 3, spring: 4, boosting piston: 5, ejector rob axis: 6, return spring: 7, compensate opening: 8, reflux valve: 9, suction port: 10, oil outlet: 11, oil cylinder: 12, piston ring: 13, exhaust port: 14, pod apertures: 15, axle sleeve: 16, intake duct: 17, attachment hole: 18, filler opening: 19, axial oil duct: 20, radial direction oil: 21, cylinder: 22, radial air inlet road: 23, axial admission road: 24, positioning end: 25.
Embodiment
Below in conjunction with accompanying drawing, one of the clutch master cylinder in the present invention is preferably implemented to be further elaborated explanation.
Be illustrated in figure 1 as the preferred embodiment according to pneumatically controlled clutch master cylinder of the present invention, it comprises and is provided with cylinder 22 and ejector rob axis 6 and return spring 7 in the pump housing, this pump housing, also connecting air inlet seat (2) on the described pump housing, the front end of described ejector rob axis 6 is equipped with boosting piston 5, boosting piston 5 consists of cylinder 22 with the front end of the described pump housing, the rear end of described ejector rob axis 6 is placed in the described pump housing and consists of oil cylinder 12 with the rear end of the described pump housing, and described cylinder 22 links with described oil cylinder 12 by the to-and-fro motion of ejector rob axis 6.Changed the mode of conventional clutch employing hydraulic booster or air assisted, adopted the mode of gas-liquid combination to carry out the clutch power-assisted, this kind mode has improved the travelling comfort of handling, and has reduced driver's working strength.
In the present embodiment, the monolithic construction that the described pump housing adopts the aluminum alloy material manufacturing to form has been avoided the bad drawback of the corrosion phenomenon that the metal parts in original clutch control system causes because of external environment, has alleviated the weight of self.The end of described cylinder 22 is fixedly connected with described air inlet seat 2, is provided with gas check in described joint.For example, rubber washer.As another kind of replacement scheme, described cylinder 22 is connected by seal connector with air inlet seat 2.Described connection sealing element is provided with groove.The periphery of the air inlet seat 2 that is connected with the described pump housing is provided with dust-proof cover, and an end of described dust-proof cover is buckled on air inlet seat 2, and the other end is buckled in the groove of offering on the seal connector that is connected with the described pump housing.Also or, adopt the mode that is threaded to be connected between the end of described cylinder 22 and described air inlet seat 2, to guarantee the tightness of the described pump housing.Offer a step circle around suction port 10 inwalls on the circumferential inner wall of described suction port 10.Described step circle has leading role, and the reliability that makes compressed air line be connected with air inlet seat 2 is difficult for producing gas leak phenomenon.Equally, the circumferential inner wall of oil outlet 11, exhaust port 14 is same to be adopted as the structure of suction port 10 inwalls, has strengthened the tightness of joint, is difficult for the phenomenon of generation gas leak of the oil leakage, strengthened the pneumatically controlled clutch master cylinder overall reliability.
Offer filler opening 19 and oil outlet 11 on the axial direction of described oil cylinder 12, cylindrical center's line of filler opening 19 and oil outlet 11 is perpendicular to the axis of the described pump housing, and described oil inlet hole 19 is by described compensate opening 8 and described oil cylinder 12 conductings.On the axial direction of the described pump housing, filler opening 19 staggers certain distance and both parallel in the horizontal direction with described oil outlet.The offering in the radial direction compensate opening 8 and connect with described oil cylinder 12 of described oil cylinder 12, described compensate opening 8 has two or more on the axial direction of described oil cylinder.The rear end of described ejector rob axis 6 offers axial oil duct 20, axially radial direction oil 21 conductings of an end of oil duct 20 and ejector rob axis 6 rear ends, and the other end is equipped with reflux valve 9, opens/close by what control described reflux valve 9 the amount of controlling described oil cylinder 12 interior liquid.Compensate opening 8 can be by radial direction oil 21 conductings with described ejector rob axis rear end of moving left and right of described ejector rob axis 6, the liquid of filler opening 19 of flowing through enters compensate opening 8, liquid in compensate opening 8 is divided into two-way, the one tunnel axial oil duct 20 of process enters the gap between described ejector rob axis 6 and described oil cylinder 12, play lubricated effect, the axial oil duct 20 of another road by described ejector rob axis 6 inside enters oil cylinder 12 inside, and discharges by oil outlet 11.Described oil outlet 11 is connected with clutch separation chamber (not shown) perforation.The rear end of described ejector rob axis 6 by the piston ring 13 on it and described oil cylinder 12 inwall movable contacts and and described oil cylinder 12 between the airtight cavity of formation.The left end of two-piston ring 13 is cylinder 22, and the right-hand member of two-piston ring 13 is oil cylinder 12, forms airtight cavity between piston ring 13 and described boosting piston 5.
Offer axial admission road 24 on the front end shaft core position of described ejector rob axis 6, radial air inlet road 23 conductings that an end in axial admission road 24 and described ejector rob axis 6 front ends are offered in the radial direction.Described radial air inlet road 23 and described cylinder 22 conductings.Offer suction port 10 on described air inlet seat 2.The intake duct 17 of offering on suction port 10 and described air inlet seat 2 connects and is connected.The valve 3 of intake duct 17 by on described air inlet seat 2 and described axial admission road 24, cylinder 22 conductings.The effect of described valve 3 is to start or close described intake duct 17.The bottom of described cylinder 22 offers exhaust port 14, and exhaust port 14 is by the pod apertures 15 and cylinder 22 conductings of cylinder bottom.High-pressure air is through described suction port 10, enters described intake duct 17 by axial admission road 24 conductings on valve 3 and described ejector rob axis 6, enters described cylinder 22 through the high-pressure air in axial admission road 24 by radial air inlet road 23.High-pressure air in cylinder 22 is discharged through described pod apertures 15, exhaust port 14 again.Described exhaust port 14 is opened on the described pump housing, is both the integral type structure.
One end of described return spring 7 contacts with boosting piston 5 on described ejector rob axis 6, and the other end contacts with the bottom interior wall of described cylinder 22 and to pass through the positioning end 25 of cylinder 22 bottoms spacing.In the present embodiment, as shown in Figure 1, described aftertaste spring 7 is the turriform spring, one end of described turriform spring (bottom of turriform spring) and described boosting piston 5 movable contacts, the bottom interior wall movable contact of the other end (top of turriform spring) and described cylinder 22 or spacing by the positioning end 25 of cylinder 22 bottoms.
Boosting piston 5 is fixedly connected with described ejector rob axis 6 by 6 axle sleeve 16 on described ejector rob axis.On the top of described ejector rob axis 6, cover has spring 4.Described axle sleeve 16 is enclosed within on the combination of described ejector rob axis 6 and described spring 4, an end of spring 4 and valve 3 movable contacts on described air inlet seat 2, and spring 4 is provided with certain pretightening force, the other end of spring 4 and described axle sleeve 16 movable contacts.
When the clutch master cylinder in use the present invention, push rod 1 by dress on described air inlet seat 2 is connected with clutch pedal on vehicle, specifically described air inlet seat 2 is fixedly connected with an end of described push rod 1 by the attachment hole 18 on it, and the other end of push rod 1 is fixedly connected with clutch pedal.
When described clutch master cylinder provided power-assisted, the power that clutch pedal is subject to acted on air inlet seat 2 by described push rod 1, overcomes the pretightening force that is subject to described spring 4 on valve 3, described valve 3 acts on described ejector rob axis 6, at this moment, close described exhaust port 14, open described suction port 10.Pressurized air enters in described cylinder 22 and acts on boosting piston 5 by valve 3 and produces thrust.The thrust that boosting piston 5 produces promotes described ejector rob axis 6 and acts on oil cylinder 12.At this moment, close compensate opening 8, progressively set up hydraulic booster.Close described reflux valve 9, make hydraulic pressure in oil outlet 11 enters clutch separation chamber (not shown), produce the parting liquid pressure pressure, realize separating power-assisted, make clutch separation.
In the present embodiment, the top of described push rod 1 is spherical structure or has globoidal structure, is connected with attachment hole 18 on air inlet seat 2, and the bottom of the attachment hole 18 on air inlet seat 2 is for having the depression cambered surface, the connecting end of push rod 1 contacts with described attachment hole 18, guarantees the accuracy of transmission power.
When the clutch of removing described clutch master cylinder separates power-assisted, loosen foot treadle, remove the active force on push rod 1 and air inlet seat 2.At this moment, the spring 4 that contacts with described valve 3 restPoses, and throttle down 3 and suction port 10 are opened described relief opening 14, pressurized air through relief opening 14 discharged to atmosphere.Described boosting piston 5 returns to initial position under the effect of return spring 7, ejector rob axis 6 is also along with boosting piston 5 is got back to initial position simultaneously, open compensate opening 8, progressively reduce the fluid pressure in described oil cylinder 12, fluid loss when unlatching reflux valve 9(in time replenishes power-assisted in oil cylinder 12), remove the clutch power-assisted.
Need to prove, illustrated embodiment of the present invention is not limited to the present invention just in order more clearly to express the clutch master cylinder in the present invention; In addition, for the ease of understanding technical spirit of the present invention, in the present invention also for associated components is shown one by one.For example, clutch separation chamber.All any modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., within all being included in protection scope of the present invention.Every foundation technical spirit of the present invention all still belongs to the scope of technical solution of the present invention to any simple modification made for any of the above embodiments.
Claims (10)
1. pneumatically controlled clutch master cylinder, comprise the pump housing, be provided with cylinder (22) and ejector rob axis (6) and return spring (7) in this pump housing, also connecting air inlet seat (2) on the described pump housing, it is characterized in that: also have oil cylinder (12) in the pump housing, the front end of described ejector rob axis (6) is equipped with boosting piston (5), boosting piston (5) consists of cylinder (22) with the front end of the described pump housing, the rear end of described ejector rob axis (6) and the rear end of the described pump housing consist of oil cylinder (12), described cylinder (22) is by to-and-fro motion and described oil cylinder (12) interlock of ejector rob axis (6).
2. pneumatically controlled clutch master cylinder as claimed in claim 1, it is characterized in that: the end of described cylinder (22) is fixedly connected with described air inlet seat (2).
3. pneumatically controlled clutch master cylinder as claimed in claim 1, it is characterized in that: offer filler opening (19) and oil outlet (11) on the axial direction of described oil cylinder (12), the cylindrical center of filler opening (19) and oil outlet (11) is perpendicular to the axis of the described pump housing.
4. pneumatically controlled clutch master cylinder as described in claim 1 or 3 is characterized in that: the offering in the radial direction compensate opening (8) and connect with described oil cylinder (12) of described oil cylinder (12).
5. pneumatically controlled clutch master cylinder as claimed in claim 3 is characterized in that: described oil inlet hole (19) is by described compensate opening (8) and described oil cylinder (12) conducting.
6. pneumatically controlled clutch master cylinder as claimed in claim 1, it is characterized in that: the rear end of described ejector rob axis (6) offers axial oil duct (20), axially radial direction oil (21) conducting of an end of oil duct (20) and ejector rob axis (6) rear end, the other end is equipped with reflux valve (9), opens/close by what control described reflux valve (9) the flow of controlling the interior liquid of described oil cylinder (12).
7. pneumatically controlled clutch master cylinder as claimed in claim 6 is characterized in that: the rear end of described ejector rob axis (6) is by the piston ring (13) on it and described oil cylinder (12) inwall movable contact.
8. pneumatically controlled clutch master cylinder as claimed in claim 7, it is characterized in that: offer axial admission road (24) on the front end shaft core position of described ejector rob axis (6), radial air inlet road (23) conducting that an end in axial admission road (24) and described ejector rob axis (6) front end are offered in the radial direction.
9. pneumatically controlled clutch master cylinder as claimed in claim 1 or 2 is characterized in that: offer suction port (10) on described air inlet seat (2), the intake duct (17) of offering on described suction port (10) and described air inlet seat (2) connects and is connected.
10. a clutch assembly, comprise clutch master cylinder, it is characterized in that: adopt the clutch master cylinder in above-mentioned any one claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100807088A CN103148122A (en) | 2013-03-14 | 2013-03-14 | Clutch master pump and clutch assembly equipped with clutch master pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100807088A CN103148122A (en) | 2013-03-14 | 2013-03-14 | Clutch master pump and clutch assembly equipped with clutch master pump |
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| Publication Number | Publication Date |
|---|---|
| CN103148122A true CN103148122A (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100807088A Pending CN103148122A (en) | 2013-03-14 | 2013-03-14 | Clutch master pump and clutch assembly equipped with clutch master pump |
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| CN (1) | CN103148122A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570348A (en) * | 2014-11-10 | 2016-05-11 | 舍弗勒技术股份两合公司 | Hydraulic auxiliary actuator and vehicle comprising same |
| CN106314142A (en) * | 2015-06-26 | 2017-01-11 | 长城汽车股份有限公司 | Vehicle clutch pedal mechanism and vehicle comprising same |
| CN106402200A (en) * | 2016-11-29 | 2017-02-15 | 江苏大学 | Automobile clutch pedal auxiliary device |
| CN107208712A (en) * | 2015-02-06 | 2017-09-26 | 舍弗勒技术股份两合公司 | Clutch actuation device and method for actuating a clutch actuation device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05139171A (en) * | 1991-11-20 | 1993-06-08 | Kubota Corp | Operating device of hydraulic clutch in tractor with cabin |
| CN202082313U (en) * | 2011-05-05 | 2011-12-21 | 北汽福田汽车股份有限公司 | Pneumatic power assisting device and automobile clutch system with same |
| CN202301586U (en) * | 2011-10-24 | 2012-07-04 | 浙江科力车辆控制系统有限公司 | Novel balance piston assembly of clutch booster pump |
| CN203214707U (en) * | 2013-03-14 | 2013-09-25 | 瑞立集团瑞安汽车零部件有限公司 | Clutch master pump and clutch assembly provided with same |
-
2013
- 2013-03-14 CN CN2013100807088A patent/CN103148122A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05139171A (en) * | 1991-11-20 | 1993-06-08 | Kubota Corp | Operating device of hydraulic clutch in tractor with cabin |
| CN202082313U (en) * | 2011-05-05 | 2011-12-21 | 北汽福田汽车股份有限公司 | Pneumatic power assisting device and automobile clutch system with same |
| CN202301586U (en) * | 2011-10-24 | 2012-07-04 | 浙江科力车辆控制系统有限公司 | Novel balance piston assembly of clutch booster pump |
| CN203214707U (en) * | 2013-03-14 | 2013-09-25 | 瑞立集团瑞安汽车零部件有限公司 | Clutch master pump and clutch assembly provided with same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570348A (en) * | 2014-11-10 | 2016-05-11 | 舍弗勒技术股份两合公司 | Hydraulic auxiliary actuator and vehicle comprising same |
| CN107208712A (en) * | 2015-02-06 | 2017-09-26 | 舍弗勒技术股份两合公司 | Clutch actuation device and method for actuating a clutch actuation device |
| CN107208712B (en) * | 2015-02-06 | 2019-06-18 | 舍弗勒技术股份两合公司 | Clutch actuation device and method for actuating a clutch actuation device |
| CN106314142A (en) * | 2015-06-26 | 2017-01-11 | 长城汽车股份有限公司 | Vehicle clutch pedal mechanism and vehicle comprising same |
| CN106402200A (en) * | 2016-11-29 | 2017-02-15 | 江苏大学 | Automobile clutch pedal auxiliary device |
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Application publication date: 20130612 |