CN102628481B - Push type self-aligning hydraulic release bearing wheel cylinder unit - Google Patents
Push type self-aligning hydraulic release bearing wheel cylinder unit Download PDFInfo
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- CN102628481B CN102628481B CN201210104039.9A CN201210104039A CN102628481B CN 102628481 B CN102628481 B CN 102628481B CN 201210104039 A CN201210104039 A CN 201210104039A CN 102628481 B CN102628481 B CN 102628481B
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Abstract
The invention discloses a push type self-aligning hydraulic release bearing wheel cylinder unit, relating to a vehicular release bearing unit. The push type self-aligning hydraulic release bearing wheel cylinder unit is especially suitable for passenger cars and commercial vehicles using push type clutches, in particular cars using the push type clutches and belongs to the technical field of automobile bearings. The push type self-aligning hydraulic release bearing wheel cylinder unit comprises a self-aligning bearing mechanism, a hydraulic wheel cylinder mechanism and an air bleeder, wherein the self-aligning bearing mechanism consists of an outer ring, an inner ring, a retainer, a steel ball, an inner dustproof cover, an outer cover, an aligning leaf spring, a sleeve and a sleeve seat; the hydraulic wheel cylinder mechanism consists of a cylinder body, a mandrel, a leather ring, a mandrel sealing ring, a return spring and a spring seat; and the air bleeder comprises an oil feeding connector, a clamp, a first O-shaped ring, a second O-shaped ring, an exhaust valve tee joint, an air bleed screw sealing ring, an air bleed screw, an air bleed screw cap, an air feeding connector screw and a choke plug. The push type self-aligning hydraulic release bearing wheel cylinder unit disclosed by the invention has the use function of the release bearing and the function of the wheel cylinder and is hydraulically driven. The push type self-aligning hydraulic release bearing wheel cylinder unit has the advantages of higher service efficiency, longer service life and higher flexibility in operation.
Description
Technical field
What pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder of the present invention unit related to is a kind of automobile-used release bearing unit, is specially adapted to use passenger car, the commercial car of push type clutch, especially uses the car of push type clutch, belongs to automobile bearing technical field.
Background technique
Traditional automobile clutch working principle is divided into two kinds, one is mechanical type brace agency: let slip the clutch, pull shift fork by tie rod, and shift fork promotes or pulls release bearing that the active and passive friction plate of clutch is separated, cut off the power output of motor, thereby realize clutch function.Another kind is to adopt fluid drive mechanism: let slip the clutch, power is sent to clutch master cylinder, master cylinder output oil pressure is to wheel cylinder, wheel cylinder promotes shift fork, shift fork promotes or pulls release bearing that the active and passive friction plate of clutch is separated, cut off the power output of motor, thereby realize clutch function.
But no matter be mechanical type or hydraulic type transmission, release bearing all plays the effect removing of holding.And all realize transmission by shift fork in gearbox.Shifting fork structure adopts lever principle to realize carry-over moment.Because traditional release bearing is by shift fork carry-over moment, between noise, separating bearing sleeve barrel and the axle clashing between bearing and separation finger, fricative noise generates heat, particularly uses after a period of time, after the lubricant oil of smearing while assembling in shift fork and sleeve scatters and disappears, noise can continue to increase.Strike note between shift fork and sleeve also can strengthen.Along with the aggravation of wearing and tearing, release travel increases, and causes separating the defects such as not thorough.
Summary of the invention
The object of the invention is provides a kind of pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder unit for above-mentioned deficiency, for the passenger car, the commercial car that use push type clutch provide a kind of special release bearing.Clutch separation can effectively be realized in pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder unit, and automatically adjusts the bearing and the concentric synchronous rotary of clutch diaphragm spring separation finger that are arranged on gearbox.The present invention is mated use with general push type clutch, can, along with the wearing and tearing of clutch, automatically adjust release travel.
Pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder unit takes following technological scheme to realize: pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder unit comprises Self-aligning gear mechanism, hydraulic shunt pump mechanism and means of deflation; Self-aligning gear mechanism is made up of outer ring, inner ring, retainer, steel ball, interior dust-proof cover, outer cover, aligning spring sheet, sleeve and receiver, bearing adopts angle contacting design, by aligning spring sheet aligning, aligning force is that the positive pressure that the size of the radial displacement required power of aligning spring sheet after compressed is produced by the aligning spring sheet after compressed is carried out homeostasis.
Hydraulic shunt pump mechanism is made up of cylinder body, mandrel, apron, stem seal circle, return spring and spring seat.Described sealability design meets QC/T77 " hydraulic vehicle braking wheel cylinder technical specifications " low pressure seal performance: will in assembly, pass into the positive and negative 7Kp hydraulic pressure of 140Kp, and pressurize 30 seconds, pressure drop must not be greater than 7Kpa; High pressure sealing performance: in assembly, pass into Maximum operating pressure, pressurize 30 seconds, pressure drop is not more than 0.3Mpa; Withstand voltage properties: assembly is passed into 130% hydraulic pressure of Maximum operating pressure, keep pressure 10 ~ 20 seconds, assembly is without leakage.
Means of deflation comprises fuel inlet fitting, clamp, the first round section joint ring, the second round section joint ring, outlet valve threeway, bleed screw seal ring, bleed screw, bleeder cap, fuel inlet fitting screw and chock plug etc., means of deflation is discharged air in oil circuit after installation, ensures hydraulic chamber sealability; Outlet valve threeway one end and fuel inlet fitting are fixedly connected by clamp, and one end and bleed screw are fixedly connected by clamp, and the other end is fixedly connected with by clamp with fuel inlet fitting screw; The second round section joint ring is housed on fuel inlet fitting, the first round section joint ring is housed on fuel inlet fitting screw, bleed screw seal ring is housed on bleed screw, make the inner maintenance sealing of outlet valve threeway.
Self-aligning gear mechanism is arranged on mandrel, and receiver is riveted on sleeve, and one end of aligning spring sheet is installed in the groove in receiver, is fitted on interior dust-proof cover in the other end of aligning spring sheet; Interior dust-proof cover is arranged on inner ring end face, and interior dust-proof cover bottom external diameter matches with inner ring internal diameter; Gap between interior dust-proof cover bottom internal diameter and the groove external diameter of receiver head is center adjusting value, described center adjusting value is 1.2 ~ 2.2mm, the required power of radial displacement after aligning spring sheet is compressed is that aligning force is 30 ~ 120N, and interior dust-proof cover can stop the dust at clutch separation place and greasy dirt to enter bearing inside; Outer cover is wrapped on outer ring, and outer cover head is riveted on outer ring; Band rubber position, outer cover bottom becomes interference fit with inner ring external diameter, seals, and not only stops bearing internal grease to spill, and can also stop external dust, the dirty bearing that enters.
Described bearing adopts outer ring rotation or inner ring rotation, and outer ring rotation is applicable to the clutch that separation finger diameter is larger, and inner ring rotation is applicable to the clutch that separation finger diameter is less, refers to diameter and pushing-type hydraulic pressure separating bearing wheel cylinder unitary space to meet clutch separation.
Together with mandrel passes through rivet with cylinder body, cylinder body and mandrel composition hydraulic chamber; Between mandrel and cylinder body, seal by stem seal circle, ensure the sealability of hydraulic chamber inside; After bearing packs into, the bending by mandrel head by spacing bearing on mandrel.Spring seat is arranged on bearing inner race bottom end face, and one end of return spring is arranged in spring seat, and the other end of return spring is fitted in cylinder body.The Main Function of return spring is to provide bearing and is installed to the normal contact force of separation finger on compressed, and described normal contact force is 50～100N.Apron is contained on cylinder body and between mandrel, becomes interference fit.Apron head is arranged on sleeve, is fixed by the step on sleeve.When oil is pressed into after hydraulic chamber, sealed up by apron, promote sleeve, sleeve is connected with bearing, and band dynamic bearing upwards promotes.Bearing outer ring refers to be connected with clutch separation, promotes clutch separation and refers to, makes clutch produce separating action.When pressure is withdrawn from, because pushing-type hydraulic pressure separating bearing is the normal way of contact, the elastic force self-return referring to by clutch separation.
The second round section joint ring is arranged in the groove of cylinder body filler opening head, and fuel inlet fitting is arranged on cylinder body filler opening head, and clamp is installed in cylinder body filler opening head recess, and fuel inlet fitting is fixed in cylinder body by clamp; One end of outlet valve three passband boss is arranged on fuel inlet fitting, after on bleed screw, cover has bleed screw seal ring, together packs in outlet valve threeway, fixes by clamp; Top at described bleed screw is provided with bleeder cap; The other end of outlet valve threeway is provided with fuel inlet fitting screw and the first round section joint ring, and fixes with clamp.In the time of entrucking, by bleed screw Rotate 180 degree, allow oil enter hydraulic chamber, discharge air, treat that in oil circuit, air drains, return turnback, seal up hydraulic chamber.
Working principle: let slip the clutch, clutch master cylinder oil pressure enters in pushing-type hydraulic pressure separating bearing wheel cylinder and produces thrust, band dynamic bearing, and bearing is pressed in clutch separation and refers to, make the active and passive friction plate combination of clutch, cut off the power transmission of motor and gearbox.Realize vehicle starting, gearshift function.Work as release the clutch pedal, master cylinder pressure disappears, and pushing-type hydraulic pressure separating bearing wheel cylinder also loses pressure thereupon, and the active and passive friction plate in clutch separates.Recover the power transmission in motor and gearbox.
Advantage of the present invention: pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder of the present invention unit has changed the linkage structure of orthodox car gearbox and clutch.Cancel shifting fork mechanism, clutch slave cylinder, an axle axle sleeve, saved gearbox space, alleviated the weight of car load.Improved release bearing usability, it is more simply firm to install, and changes hydraulic rotation into by mechanical transmission simultaneously.Cut-out engine moment is more thorough, soft, noise free, makes operation more easily comfortable.
The function of traditional pushing-type release bearing has been inherited in this pushing-type hydraulic pressure separating bearing wheel cylinder unit, has cancelled shifting fork mechanism in gearbox, axle axle sleeve and a wheel cylinder simultaneously, directly by pushing-type fluid bearing wheel cylinder cellular installation on gearbox.The oil pressure of clutch master cylinder is sent to clutch, thereby there is efficient service behaviour.Strengthen working life.Pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder unit requires to be connected with push type clutch, is a kind ofly to refer to clutch separation the structural type often contact, and the impact noise can avoid clutch on-off time, separation effect is high, operates light.Because pushing-type hydraulic pressure separating bearing adopts inner ring rotation, greasy property is good, adapts to high rotating speed, can effectively reduce radiography and improve working life.In order to overcome the decentraction existing after gearbox one axle and clutch are installed, adopt automatic aligning device, can effectively automatically adjust alignment error.Having solved clutch separation completely refers to contact with release bearing end face and rotates the circumferential fricative noise and the wearing and tearing that cause because of decentraction.And reduce bearing to be subject to the effect of alternating stress radially and the fatigue damage that produces, extend the working life of release bearing.
Pushing-type hydraulic pressure separating bearing wheel cylinder cellular installation is very simple and convenient on gearbox, adopts screw mounting type, is fixed on gearbox cover.Change the structure of gearbox, cancelled the parts such as the shifting fork mechanism in gearbox, an axle axle sleeve, clutch slave cylinder.Saved gearbox space, cancelled shifting fork device simultaneously, the noise having avoided shift fork and release bearing to clash into producing, install do not mate, the problem such as separating bearing sleeve barrel and an axle axle sleeve friction noise.After installation, make gearbox and clutch work more firm.Moment loss is less.Cut off Engine torque more thorough, thereby make operation more easily comfortable.
Product is combined in the present invention with clutch slave cylinder by release bearing, have the use function of release bearing, has again the function of wheel cylinder simultaneously, cancels original shift fork transmission and changes hydraulic transmission into.Make that transmission efficiency is higher, the advantage such as long service life, operation are lighter.
Brief description of the drawings
Below with reference to accompanying drawing, the invention will be further described:
Fig. 1 is the structural front view of pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder of the present invention unit.
Fig. 2 is the left view of Fig. 1 pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder unit.
Fig. 3 is the partial sectional view of Fig. 2 pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder unit.
In figure: 1, outer ring, 2, inner ring, 3, interior dust-proof cover, 4, retainer, 5, steel ball, 6, outer cover, 7, cylinder body, 8, aligning spring sheet, 9, receiver, 10, spring seat, 11, return spring, 12, sleeve, 13, apron, 14, stem seal circle, 15, mandrel, 16, clamp, 17, the first round section joint ring, 18, fuel inlet fitting, 19, outlet valve threeway, 20, bleed screw seal ring, 21, bleed screw, 22, bleeder cap, 23, fuel inlet fitting screw, 24, chock plug, 25, the second round section joint ring.
Embodiment
With reference to accompanying drawing 1 ~ 3, pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder unit comprises Self-aligning gear mechanism, hydraulic shunt pump mechanism and means of deflation; Self-aligning gear mechanism is made up of outer ring 1, inner ring 2, retainer 4, steel ball 5, interior dust-proof cover 3, outer cover 6, aligning spring sheet 8, sleeve 12 and receiver 9, the bearing of Self-aligning gear mechanism adopts angle contacting design, aligning function is realized by aligning spring sheet 8, and aligning force is that the positive pressure that the size of the radial displacement required power of aligning spring sheet 8 after compressed is produced by the aligning spring sheet 8 after compressed is carried out homeostasis.
Hydraulic shunt pump mechanism is made up of cylinder body 7, mandrel 15, apron 13, stem seal circle 14, return spring 11 and spring seat 10.Described sealability design meets QC/T77 " hydraulic vehicle braking wheel cylinder technical specifications " low pressure seal performance: will in assembly, pass into the positive and negative 7Kp hydraulic pressure of 140Kp, and pressurize 30 seconds, pressure drop must not be greater than 7Kpa; High pressure sealing performance: in assembly, pass into Maximum operating pressure, pressurize 30 seconds, pressure drop is not more than 0.3Mpa; Withstand voltage properties: assembly is passed into 130% hydraulic pressure of Maximum operating pressure, keep pressure 10 ~ 20 seconds, assembly is without leakage.
Means of deflation comprises fuel inlet fitting 18, clamp 16, the first round section joint ring 17, the second round section joint ring 25, outlet valve threeway 19, bleed screw seal ring 20, bleed screw 21, bleeder cap 22, fuel inlet fitting screw 23 and chock plug 24 etc., means of deflation is discharged air in oil circuit after installation, ensures hydraulic chamber sealability; Outlet valve threeway 19 one end and fuel inlet fitting 18 are fixedly connected by clamp 16, and one end and bleed screw 21 are fixedly connected by clamp 16, and the other end is fixedly connected with by clamp 16 with fuel inlet fitting screw 23; The second round section joint ring 25 is housed on fuel inlet fitting 18, the first round section joint ring 17 is housed on fuel inlet fitting screw 23, bleed screw seal ring 20 is housed on bleed screw 21, make the inner maintenance sealing of outlet valve threeway 19.
Self-aligning gear mechanism is arranged on mandrel 15, and receiver 9 is riveted on sleeve 12, and one end of aligning spring sheet 8 is installed in the groove in receiver 9, is fitted on interior dust-proof cover 3 in the other end of aligning spring sheet 8; Interior dust-proof cover 3 is arranged on inner ring 2 end faces, and interior dust-proof cover 3 bottom external diameters match with inner ring 2 internal diameters; Gap between interior dust-proof cover 3 bottom internal diameters and the groove external diameter of receiver 9 heads is center adjusting value, described center adjusting value is 1.2 ~ 2.2mm, the required power of radial displacement after aligning spring sheet 8 is compressed is that aligning force is 30 ~ 120N, and interior dust-proof cover 3 can stop the dust at clutch separation place and greasy dirt to enter bearing inside; Outer cover 6 is wrapped on outer ring, and outer cover 6 heads are riveted on outer ring 1; Outer cover 6 band rubber positions, bottom become interference fit with inner ring 2 external diameters, seal, and not only stop bearing internal grease to spill, and can also stop external dust, the dirty bearing that enters.
Described bearing adopts outer ring rotation or inner ring rotation, and outer ring rotation is applicable to the clutch that separation finger diameter is larger, and inner ring rotation is applicable to the clutch that separation finger diameter is less, refers to diameter and pushing-type hydraulic pressure separating bearing wheel cylinder unitary space to meet clutch separation.
Together with mandrel 15 passes through rivet with cylinder body 7, cylinder body 7 forms hydraulic chamber with mandrel 15; Between mandrel 15 and cylinder body 7, seal by stem seal circle 14, ensure the sealability of hydraulic chamber inside; After bearing packs into, the bending by mandrel 15 heads by spacing bearing on mandrel 15.Spring seat 10 is arranged on bearing inner race 2 bottom end faces, and one end of return spring 11 is arranged in spring seat 10, and the other end of return spring 11 is fitted in cylinder body 7.The Main Function of return spring 11 is to provide bearing and is installed to the normal contact force of separation finger on compressed, and described normal contact force is 50～100N.Apron 13 is contained on cylinder body 7 and between mandrel 15, becomes interference fit.Apron 13 heads are arranged on sleeve 12, are fixed by the step on sleeve 12.When oil is pressed into after hydraulic chamber, sealed up by apron 13, promote sleeve 12, sleeve 12 is connected with bearing, and band dynamic bearing upwards promotes.Bearing outer ring 1 refers to be connected with clutch separation, promotes clutch separation and refers to, makes clutch produce separating action.When pressure is withdrawn from, because pushing-type hydraulic pressure separating bearing is the normal way of contact, the elastic force self-return referring to by clutch separation.
The second round section joint ring 25 is arranged in the groove of cylinder body 7 filler opening heads, and fuel inlet fitting 18 is arranged on cylinder body 7 filler opening heads, and clamp 16 is installed in cylinder body 7 filler opening head recess, and fuel inlet fitting 18 is fixed in cylinder body 7 by clamp 16; One end of outlet valve three passband boss is arranged on fuel inlet fitting 18, after on bleed screw 21, cover has bleed screw seal ring 20, together packs in outlet valve threeway, fixes by clamp 16; On the top of described bleed screw 21, bleeder cap 22 is installed; The other end of outlet valve threeway is provided with fuel inlet fitting screw 23 and the first round section joint ring 17, and fixing with clamp 16.In the time of entrucking, by bleed screw 21 Rotate 180 degree, allow oil enter hydraulic chamber, discharge air, treat that in oil circuit, air drains, return turnback, seal up hydraulic chamber.
Working principle: let slip the clutch, clutch master cylinder oil pressure enters in pushing-type hydraulic pressure separating bearing wheel cylinder and produces thrust, band dynamic bearing, and bearing is pressed in clutch separation and refers to, make the active and passive friction plate combination of clutch, cut off the power transmission of motor and gearbox.Realize vehicle starting, gearshift function.Work as release the clutch pedal, master cylinder pressure disappears, and pushing-type hydraulic pressure separating bearing wheel cylinder also loses pressure thereupon, and the active and passive friction plate in clutch separates.Recover the power transmission in motor and gearbox.
The bearing that the present invention adopts is angular contact ball bearing structural type, and the carrying of bearing, to bear axial force as main, can be born again suitable radial force simultaneously, adapts to high speed rotating; The present invention has changed original automobile variable speed box structure, has cancelled the parts such as disengaging yoke, an axle axle sleeve, clutch slave cylinder, has simplified separating mechanism, becomes hydraulic transmission from mechanical lever transmission, and it is more firm to use, safety and comfort; The present invention does not have traditional release sleeve mechanism, without coordinating with an axle axle sleeve, therefore there is no the sliding friction of separating bearing sleeve barrel and axle sleeve in the past, do not rub and also just there is no the defect such as noise, interference, increase working life, is 2 to 3 times of general release bearing working life.Pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder cellular installation is more quick on gearbox, and fixing enhancing is installed.Tradition release bearing is installed and is subject to the impact of shift fork position, causes installing after not in place, assembling the problems such as abnormal work, affects the normal use of release bearing.Hydraulic pressure separating bearing wheel cylinder unit only need be fixed on cylinder body on gearbox cover.Unit of the present invention has larger use stroke, is generally 5 ~ 6 times of travel of clutch.So can fully meet the usage requirement of clutch.Avoid, because of design error between gearbox and engine air, causing the phenomenon that release travel is inadequate.Simultaneously it have automatic adjusting because of clutch separation refer to wear and tear after the change of release travel.There is efficient sealability; Can effectively transmit the pressure from clutch master cylinder, separating action is sensitive soft, and noise free operates more comfort and convenient; Motor and gearbox are had to certain protective action, improved vehicle performance.
Claims (4)
1. a pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder unit, is characterized in that: comprise Self-aligning gear mechanism, hydraulic shunt pump mechanism and means of deflation; Self-aligning gear mechanism is made up of outer ring, inner ring, retainer, steel ball, interior dust-proof cover, outer cover, aligning spring sheet, sleeve and receiver;
Hydraulic shunt pump mechanism is made up of cylinder body, mandrel, apron, stem seal circle, return spring and spring seat;
Means of deflation comprises fuel inlet fitting, clamp, the first round section joint ring, the second round section joint ring, outlet valve threeway, bleed screw seal ring, bleed screw, bleeder cap, fuel inlet fitting screw and chock plug; Outlet valve threeway one end and fuel inlet fitting are fixedly connected by clamp, and one end and bleed screw are fixedly connected by clamp, and the other end is fixedly connected with by clamp with fuel inlet fitting screw; The second round section joint ring is housed on fuel inlet fitting, the first round section joint ring is housed on fuel inlet fitting screw, bleed screw seal ring is housed on bleed screw, by bleed screw 21 Rotate 180 degree, allow oil enter hydraulic chamber, discharge air, treat that in oil circuit, air drains, return turnback, seal up hydraulic chamber, make the inner maintenance sealing of outlet valve threeway;
Self-aligning gear mechanism is arranged on mandrel, and receiver is riveted on sleeve, and one end of aligning spring sheet is installed in the groove in receiver, is fitted on interior dust-proof cover in the other end of aligning spring sheet; Interior dust-proof cover is arranged on inner ring end face, and interior dust-proof cover bottom external diameter matches with inner ring internal diameter; Gap between interior dust-proof cover bottom internal diameter and the groove external diameter of receiver head is center adjusting value; Outer cover is wrapped on outer ring, and outer cover head is riveted on outer ring; Band rubber position, outer cover bottom becomes interference fit with inner ring external diameter, seals;
Together with mandrel passes through rivet with cylinder body, cylinder body and mandrel composition hydraulic chamber; Between mandrel and cylinder body, seal by stem seal circle, ensure the sealability of hydraulic chamber inside; After bearing packs into, the bending by mandrel head by spacing bearing on mandrel; Spring seat is arranged on bearing inner race bottom end face, and one end of return spring is arranged in spring seat, and the other end of return spring is fitted in cylinder body; Apron is contained on cylinder body and between mandrel, becomes interference fit; Apron head is arranged on sleeve, is fixed by the step on sleeve; Bearing outer ring refers to be connected with clutch separation, promotes clutch separation and refers to, makes clutch produce separating action, when pressure is withdrawn from, and because pushing-type hydraulic pressure separating bearing is the normal way of contact, the elastic force self-return referring to by clutch separation;
The second round section joint ring is arranged in the groove of cylinder body filler opening head, and fuel inlet fitting is arranged on cylinder body filler opening head, and clamp is installed in cylinder body filler opening head recess, and fuel inlet fitting is fixed in cylinder body by clamp; One end of outlet valve three passband boss is arranged on fuel inlet fitting, after on bleed screw, cover has bleed screw seal ring, together packs in outlet valve threeway, fixes by clamp; Top at described bleed screw is provided with bleeder cap.
2. pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder according to claim 1 unit, is characterized in that: described center adjusting value is 1.2 ~ 2.2mm, and the required power of radial displacement after aligning spring sheet is compressed is that aligning force is 30 ~ 120N.
3. pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder according to claim 1 unit, is characterized in that: described bearing adopts outer ring rotation or inner ring rotation.
4. pushing-type Self-aligning hydraulic pressure separating bearing wheel cylinder according to claim 1 unit, is characterized in that: described return spring provides bearing to be installed to the normal contact force of separation finger on compressed, and described normal contact force is 50～100N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210104039.9A CN102628481B (en) | 2012-04-11 | 2012-04-11 | Push type self-aligning hydraulic release bearing wheel cylinder unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210104039.9A CN102628481B (en) | 2012-04-11 | 2012-04-11 | Push type self-aligning hydraulic release bearing wheel cylinder unit |
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| Publication Number | Publication Date |
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| CN102628481A CN102628481A (en) | 2012-08-08 |
| CN102628481B true CN102628481B (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210104039.9A Active CN102628481B (en) | 2012-04-11 | 2012-04-11 | Push type self-aligning hydraulic release bearing wheel cylinder unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107191505B (en) * | 2017-06-02 | 2023-05-23 | 华南理工大学 | Hydraulic release bearing assembly with stepped double cavities |
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| DE19958874A1 (en) * | 1999-12-07 | 2001-06-13 | Mannesmann Sachs Ag | Actuating device for the actuation, in particular pneumatic actuation of a friction clutch |
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| CN1594906A (en) * | 2003-09-12 | 2005-03-16 | 陈利祥 | Wheel cylinder assembly for automobile clutches |
| DE102007023275A1 (en) * | 2006-06-01 | 2007-12-06 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Central release bearing for e.g. motor vehicle coupling, has piston designed as hollow cylinder with ring shaped front surface which is provided with sealing and as pressure surface, where lateral surface of piston is provided with recess |
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| CN102628481A (en) | 2012-08-08 |
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