CN101298879A - Strong push type detaching mechanism of car clutch - Google Patents
Strong push type detaching mechanism of car clutch Download PDFInfo
- Publication number
- CN101298879A CN101298879A CNA2008100698323A CN200810069832A CN101298879A CN 101298879 A CN101298879 A CN 101298879A CN A2008100698323 A CNA2008100698323 A CN A2008100698323A CN 200810069832 A CN200810069832 A CN 200810069832A CN 101298879 A CN101298879 A CN 101298879A
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- push arm
- separating
- clutch
- hole
- detaching mechanism
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Abstract
The invention discloses a strength push-type separation mechanism of an automobile clutch, comprising a clutch shell, a front-end cover shaft sleeve, a release bearing, a separating ring, and a booster pump controlled by a control pedal. A separating pushing arm is arranged in the clutch shell. The pivot side of the separating pushing arm is articulated with an articulated component fixed on the clutch shell. The effort side of the separating pushing arm is articulated with a projecting shaft end of the booster pump. The middle part of the separating pushing arm is provided with a hole used for abdicating. The front-end cover shaft sleeve passes from the hole to sliding coordinate with the release bearing and the separating ring. The middle part of the separating pushing arm on both sides of the hole used for abdicating is provided with a salient contacted with the release bearing head face. The separating ring is connected with a separating claw of the clutch. The invention adopts a separating pushing arm structure to solve a problem of the separation mechanism early failure and guarantee the release bearing slides in parallel, and can improve separating force.
Description
Technical field
The present invention relates to the separating mechanism of clutch, particularly a kind of strong push type detaching mechanism of automobile clutch.
Background technique
In automobile clutch and the clutch linkage flywheel casing between motor and speed changer, be the assembly of getting in touch between motor and the transmission system.Its major function is the power that transmits or cut off from motor; steady to guarantee vehicle starting; guarantee that the transmission system gear shift is steady; reduce the mesh impact of gearshift procedure middle gear pair; prevent the power train overload simultaneously; play the effect of overload protection, its inefficacy will directly cause automobile normally not move.Usually, the structure of the clutch linkage of load-carrying lorry or motorbus comprises: disengaging yoke, declutch shaft; rocking arm; declutch shaft puts in the clutch housing; be in length and breadth cross-like with the front cover axle sleeve and arrange; declutch shaft is rotatably connected on the clutch housing; the circumferential fixedly connected rocking arm of the overhanging end of declutch shaft; the hole of rocking arm is hinged by the projecting shaft of pin and boost pump; disengaging yoke circumferentially is fixedly connected on the declutch shaft; two fork pin of disengaging yoke are positioned at the radially two ends of front cover axle sleeve (being that primary shaft bearing covers) contacts with release bearing end face on being slidingly fitted in the front cover axle sleeve.Shake arm by trying hard to recommend of granting of boost pump, driving declutch shaft thus rotates, disengaging yoke rotates with declutch shaft, two of disengaging yoke fork pin are stirred release bearing and eseparation ring is applied are moved axially thrust, eseparation ring is passed to platen by disengaging pawl with thrust, overcome the pressure of holddown spring, thereby make clutch separation.Usually the disengaging yoke because of this clutch linkage is connected with flat key with declutch shaft, and declutch shaft and rocking arm tooth spline less are connected or weld, and its Separating force that bears promptly is like this as the clutch linkage of steyr car about 5000N; According to market reaction, the phenomenon of disengaging yoke, declutch shaft fracture appears in the clutch linkage of this structure easily, causes clutch separation to lose efficacy; Phenomenons such as also exist clutch separation heavy simultaneously, separates not thoroughly, the withdrawal fork pin weares and teares inhomogeneous, and rocking arm attachment hole, the inordinate wear of front cover axle sleeve are serious.Trace it to its cause: three grooves are arranged on the declutch shaft of the clutch linkage of this structure of the first, and one of them is axial flat key groove, by flat key disengaging yoke circumferentially is fixed on the declutch shaft, makes the moment of torsion of declutch shaft can pass to disengaging yoke; Two other is a tangential recesses, by bolt disengaging yoke is held tightly on declutch shaft.Because after declutch shaft processes two tangential recesses, the cross-sectional area that processes the groove position reduces, make the strength reduction of declutch shaft, add tangential recesses and can only be arranged on and disengaging yoke could be held tightly on declutch shaft by the bigger place of stress, guarantee the transmission of moment of torsion.When the stress that is born reached capacity, the declutch shaft fracture caused declutch shaft to lose efficacy like this.It two is to be provided with keyway in the axis hole of disengaging yoke of clutch linkage of this structure, circumferentially fixedly connected with declutch shaft by key, because of thin, the strength reduction of wall thickness that the keyway place is set, also often rupture in this place under twisting force, causes disengaging yoke to lose efficacy.It three is to hold disengaging yoke tightly on declutch shaft two bolts, when disengaging yoke is worked, the bending stress maximum of leaning on this bolt of rocking arm direction and the synapsis that is coupling to be subjected to, when the Bolt Tightening Force square during not enough or distortion, under the effect of working force repeatedly, can cause that disengaging yoke is loosening with being connected of declutch shaft, the active force of declutch shaft can not effectively and equably be passed to two fork pin of disengaging yoke, two fork human hair combing waste lifes are reversed under the effect of torsion, make shift fork be single pin force-bearing situation on the one hand, what make release bearing on the other hand stressedly also is monolateral form, this state, fracture of shift fork fork pin or root are torn, bearing will be burnt because of unbalance stress, bolt breaks and ruins because of bearing bigger torsional shear.And analyze from mechanical model, this shift fork with two fork pin, since on the stress condition lower shaft apart from the different place of pivot distance, amount of deflection has difference, to cause two fork pin stressed differences, distortion inconsistent, thereby can not guarantee and the conduit parallel motion when causing release bearing to slide that actual glade plane space will be littler than theoretical calculation gap, thereby cause faults such as clutch separation is heavy, separation is thorough, the wearing and tearing of withdrawal fork pin are inhomogeneous, the inordinate wear of front cover axle sleeve.
In view of the foregoing, again because in recent years along with the increase of automobile factory to car load power setting performance, the clutch separation power of many passenger vehicles and bus increases.On some vehicle, the main engine factory that have are changed to φ 420 with the clutch driven disk of φ 380, the driven plate of φ 420 is changed to the diaphragm of φ 430, its Separating force will reach 6600N, and main engine factory are when increasing driven plate, reckon without the ability to bear of clutch linkage, because the clutch driven disk diameter increases, it is the reason that causes existing clutch linkage early failue that Separating force increases, the applying working condition of the car that particularly has is abominable, make the frequency of utilization of separating mechanism more high than other condition automobile, its separating mechanism rate of fault in use is high again.The situation of this clutch linkage early failue is especially obvious on the abominable relatively steyr public transport vehicle of operating mode, and therefore, the clutch linkage of a kind of new structure of needs solves the problem of above-mentioned existence.
Summary of the invention
The purpose of this utility model is the deficiency that exists at above-mentioned prior art, a kind of strong push type detaching mechanism of automobile clutch is provided, and it adopts the structure of separating push arm, to solve separating mechanism early failue problem, with assurance release bearing parallel sliding, and can improve Separating force.
The purpose of this utility model is achieved in that and comprises clutch housing, the front cover axle sleeve, release bearing, eseparation ring, boost pump by controlled pedal control, be provided with one in the described clutch housing and separate push arm, fulcrum one end of this separation push arm is hinged with the articulated elements that is fixed on the clutch housing, force one end of separation push arm and the projecting shaft end of boost pump are hinged, the middle part of separating push arm is provided with the hole that is used to step down, the front cover axle sleeve passes and release bearing from this hole, eseparation ring is slidingly matched, the both sides that separation push arm middle part is positioned at the hole that is used to step down is provided with the projection that contacts with the release bearing end face, and eseparation ring is connected with the disengaging pawl of clutch.
Owing to adopted such scheme, in clutch housing, be provided with one and separate push arm, the middle part of separating push arm is provided with the hole that is used to step down, the both sides that is positioned at the hole that is used to step down is provided with the projection that contacts with the release bearing end face, the two ends of separating push arm respectively with clutch housing, boost pump is hinged, make boost pump when promoting to separate the push arm motion, separate push arm and simultaneously the release bearing end face is granted identical thrust by the projection that is positioned at the both sides, hole that is used to step down, guarantee that release bearing is along front cover (being the transmission drive gear bearing lid) axle sleeve parallel sliding, promote eseparation ring and overcome the pressure of holddown spring, thereby make clutch separation by disengaging pawl drive platen.Because of the separating mechanism of this structure does not adopt disengaging yoke, declutch shaft, rocker structure, so eliminated the phenomenon of the separating mechanism early failue that exists because of disengaging yoke, declutch shaft fracture fully.Simultaneously, be positioned at the both sides in the hole that is used to step down of separating the push arm middle part because of the projection on the separation push arm with the contact of release bearing end face, fulcrum one end of this separation push arm is hinged with the articulated elements that is fixed on the clutch housing, force one end of separation push arm and the projecting shaft end of boost pump are hinged, the front cover axle sleeve of clutch passes and release bearing from this hole, eseparation ring is slidingly matched, when boost pump is granted thrust to separating push arm, the amount of deflection unanimity of separating push arm, two projectioies are stressed identical, the resiliently deformable unanimity, active force to release bearing is even, thereby guarantee that effectively release bearing is along front cover axle sleeve parallel sliding, eliminate the monolateral stressed situation of release bearing, avoided clutch separation heavy, separate not thorough, faults such as front cover axle sleeve inordinate wear.Again because the separation push arm of this structure separating mechanism is promoted along the axial motion of front cover axle sleeve by boost pump, the loss problem of the rocking arm, declutch shaft, shift fork that has overcome prior art moment when reversing transferring power, and this separating mechanism is to adopt lever principle, handle more laborsaving, its Separating force can reach more than the 8000N, greatly improved the Separating force of separating mechanism, made the separation of clutch rapid more, thorough, steady.
And force one end of described separation push arm is provided with a pointer, this pointer perpendicular to the front cover axle sleeve axially, and the bar hole from clutch housing is overhanging, and is corresponding with the other scale that is provided with of bar hole.After the separation push arm is assemblied on the clutch, adjust and separate the initial position of push arm under free state, after using repeatedly, separating push arm is under the free state, when observing pointer and in a single day departing from initial position 35mm, the wearing and tearing of just representing driven plate are comparatively serious, must upgrade driven plate, to guarantee the normal use of separating mechanism.Like this, need not take the wear condition that clutch just can be observed driven plate apart, help in time changing driven plate, avoid causing the generation of contingency because of the clutch fault.
Separating mechanism of the present invention is compared with existing separating mechanism as the steyr clutch, declutch shaft, shift fork and rocking arm have been cancelled, between boost pump and release bearing, the component of declutch shaft, rocking arm these medium taches have been reduced, separation effect is greatly improved, and structure is more succinct, clear.It separates push arm is overall structure, and strength and stiffness all are improved, and makes the strength and stiffness of whole separating mechanism improve more than 60%.And the active force to release bearing is even, has avoided the monolateral stressed situation of release bearing, thus the working life of also having improved release bearing.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is for separating the structure diagram of push arm
In the accompanying drawing, 1 is pressure spring, and 2 is first, and 3 is bent axle, and 4 is the front cover axle sleeve, 5 is release bearing, and 6 is driven plate, and 7 is flywheel, and 8 is driven disc, and 9 is disengaging pawl, 10 is platen, and 11 is cover plate, and 12 is spherical cap, and 13 is ball stud, and 14 is the housing of clutch, 15 for separating push arm, and 15a is the hole, and 15b is a projection, and 16 is front cover, and 17 is eseparation ring, 18 is support plate, and 19 is bolt, and 20 is boost pump, and 21 is projecting shaft, 22 is scale, and 23 is pointer, and 24 is lining, and 25 is flywheel casing.
Embodiment
Referring to Fig. 1, Fig. 2, a kind of embodiment of the strong push type detaching mechanism of automobile clutch of the present invention.Be provided with one in the described clutch housing 14 and separate push arm 15, this separations push arm 15 is wider than the structure at two ends for the middle part of one, is provided with the hole 15a that is used to step down in the middle part of it.The described hole 15a that is used to step down is the flat hole, the long of flat hole extended along the brachium direction of separating push arm, and the wide of flat hole extended along the arm cross direction that separates push arm, and the flat hole can be made as rectangular hole, or slotted eye, or one side is than the hole of the shape of another hem width.The both sides that separation push arm 15 middle parts are positioned at the hole 15 that is used to step down is provided with the protruding 15b that contacts with release bearing 5 end faces, and this projection 15b is symmetricly set on the both sides in the hole 15 that is used to step down, and has extension part in opposite directions.Described protruding 15 faces that contact with release bearing 5 end faces are involute shape or circular shape.Fulcrum one end of described separation push arm 15 is hinged with the articulated elements that is fixed on the clutch housing 14, force one end that separates push arm 15 is hinged with projecting shaft 21 ends of the boost pump of being controlled by controlled pedal 20, boost pump 20 is fastened on the support plate 18 by bolt, and support plate 18 is fastened on the clutch housing 14 by bolt 19.The front cover axle sleeve 2 of front cover 16 (being the primary shaft bearing lid) passes from the hole that is used to step down 15 of separating push arm 15 middle parts, be slidingly matched with release bearing 5, eseparation ring 17, the surface of contact that separates the protruding 15b of push arm 15 contacts with release bearing 5 end faces, the other end of release bearing 5 contacts with eseparation ring 17, and eseparation ring 17 cooperates with the force end clamping of the disengaging pawl 9 of clutch.The fulcrum of described disengaging pawl 9 is hinged on the supporting member fixedly connected on the platen 10 by bearing pin, the emphasis end of disengaging pawl 9 and driven disc 8 are hinged by bearing pin, be provided with pressure spring 1 between driven disc 8 and the platen 10, the driven plate 6 that is provided with on the driven disc 10 contacts with flywheel 7 end faces, flywheel 7 is arranged in flywheel casing 25, fixedlys connected with the bent axle 3 of motor.Described front cover axle sleeve 4 Spielpassung are on first 2 of speed changer, and first 2 axle head cooperates with bent axle 3 by bearing, driven disc 8 and first 2 spline fitted, and can be along first 2 axial displacement.Force one end of described separation push arm 15 is provided with a pointer 23, pointer 23 is fixed on the end of separating push arm 15 by screw thread or interference fit, this pointer 23 is axial perpendicular to front cover axle sleeve 4, and the bar hole from clutch housing 14 is overhanging, and is corresponding with the other scale 22 that is provided with of bar hole.Described pointer 23 can adopt elastic cylindrical pin.
The support end of described separation push arm 15 is provided with spherical groove, and the articulated elements that is fixed on the clutch housing 14 is provided with bulb, and the spherical groove that separates the support end of push arm 15 cooperates formation hinged with the bulb of articulated elements.For improving the flexibility of wear-resisting effect and rotation, in spherical groove, be provided with spherical cap 12, by the bulb Spielpassung of spherical cap 12 with articulated elements.Described articulated elements is the ball stud 13 that is threaded on the clutch housing 14, adopts ball stud 13 to have and is convenient to assembling or regulating action.Certainly, articulated elements also can adopt the bulb straight pin that welds or be riveted on the clutch housing 14, also can play hinged effect.It is hinged that the force end of described separation push arm 15 is respectively equipped with the bulb of projecting shaft 21 ends of groove and boost pump 20, for improving the flexibility of wear-resisting effect and rotation, in the groove of the force end that separates push arm 15, be provided with lining 24, by the bulb Spielpassung of lining 24 with projecting shaft 21 ends of boost pump.Corresponding push arm 15 support ends that separate are offered porosely on the clutch housing 14, and this hole covers with cover plate 11.
The present invention not only is confined to the foregoing description, the support end of described separation push arm also can be made as opening, by bearing pin and the bolted splice that is fixed on the band radial hole on the clutch housing, the force end that separates push arm also can be made as opening, the radial hole of the projecting shaft end by bearing pin and boost pump is hinged, also can realize directly promoting to separate the promotion of push arm to release bearing by the projecting shaft of boost pump.
When the strong push type detaching mechanism of this automobile clutch is in free state, separate push arm and release bearing is not granted pressure, pressure spring between platen and driven disc is exerted pressure to driven disc, driven plate and flywheel on the driven disc are close to, make flywheel drive the driven disc rotation, clutch is in jointing state, transferring power.When the driver handles the work of foot treadle control boost pump, the projecting shaft of boost pump promotes to separate the force end motion of push arm, separate push arm and grant pressure to release bearing, promote release bearing along the axial displacement of front cover axle sleeve, drive eseparation ring thus the force end of disengaging pawl is exerted pressure forward, the emphasis end of disengaging pawl drives driven disc and moves backward, and driven plate and flywheel are separated, interrupt transmission of power thus, the driver can carry out gear shift operation.After the driver abandoned control to foot treadle, boost pump was eliminated the pressure that separates push arm and grant, and driven disc is return under the pressure of pressure spring, and driven plate is close to flywheel again and is finished transmission of power.
Claims (10)
1. the strong push type detaching mechanism of an automobile clutch, comprise clutch housing, the front cover axle sleeve, release bearing, eseparation ring, boost pump by controlled pedal control, it is characterized in that: be provided with one in the described clutch housing and separate push arm, fulcrum one end of this separation push arm is hinged with the articulated elements that is fixed on the clutch housing, force one end of separation push arm and the projecting shaft end of boost pump are hinged, the middle part of separating push arm is provided with the hole that is used to step down, the front cover axle sleeve passes and release bearing from this hole, eseparation ring is slidingly matched, the both sides that separation push arm middle part is positioned at the hole that is used to step down is provided with the projection that contacts with the release bearing end face, and eseparation ring is connected with the disengaging pawl of clutch.
2. the strong push type detaching mechanism of automobile clutch according to claim 1, it is characterized in that: the support end of described separation push arm is provided with spherical groove, the articulated elements that is fixed on the clutch housing is provided with bulb, and the spherical groove that separates the support end of push arm cooperates formation hinged with the bulb of articulated elements.
3. the strong push type detaching mechanism of automobile clutch according to claim 2 is characterized in that: be provided with spherical cap in the spherical groove of the support end of described separation push arm, by the bulb Spielpassung of spherical cap and articulated elements.
4. according to the strong push type detaching mechanism of claim 2 or 3 described automobile clutches, it is characterized in that: described articulated elements is the ball stud that is threaded on the clutch housing.
5. according to the strong push type detaching mechanism of the arbitrary described automobile clutch of claim 1～3, it is characterized in that: it is hinged that the force end of described separation push arm is respectively equipped with the bulb of projecting shaft end of groove and boost pump.
6. the strong push type detaching mechanism of automobile clutch according to claim 5 is characterized in that: be provided with lining in the groove of the force end of described separation push arm, the bulb Spielpassung of the projecting shaft end by lining and boost pump.
7. the strong push type detaching mechanism of automobile clutch according to claim 1, it is characterized in that: the hole that is used to step down at described separation push arm middle part is the flat hole, the long of flat hole extended along the brachium direction of separating push arm, and the wide of flat hole extended along the arm cross direction that separates push arm.
8. the strong push type detaching mechanism of automobile clutch according to claim 1 is characterized in that: the projection at described separation push arm middle part is symmetricly set on the both sides in the hole that is used to step down, and has extension part in opposite directions.
9, the strong push type detaching mechanism of automobile clutch according to claim 8 is characterized in that: the face that described projection contacts with the release bearing end face is involute shape or circular shape.
10, the strong push type detaching mechanism of automobile clutch according to claim 1, it is characterized in that: force one end of described separation push arm is provided with a pointer, this pointer is axial perpendicular to the front cover axle sleeve, and the bar hole from clutch housing is overhanging, and is corresponding with the other scale that is provided with of bar hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100698323A CN101298879A (en) | 2008-06-13 | 2008-06-13 | Strong push type detaching mechanism of car clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100698323A CN101298879A (en) | 2008-06-13 | 2008-06-13 | Strong push type detaching mechanism of car clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101298879A true CN101298879A (en) | 2008-11-05 |
Family
ID=40078794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100698323A Pending CN101298879A (en) | 2008-06-13 | 2008-06-13 | Strong push type detaching mechanism of car clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101298879A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359510A (en) * | 2011-09-23 | 2012-02-22 | 孔凡鲁 | Shifting fork device of dry plate friction clutch |
| CN107939856A (en) * | 2017-12-20 | 2018-04-20 | 重庆小康工业集团股份有限公司 | Automobile liquid pressure type clutch assembly |
| CN109996971A (en) * | 2016-10-13 | 2019-07-09 | Zf腓特烈斯哈芬股份公司 | Control shell for clutch actuator |
-
2008
- 2008-06-13 CN CNA2008100698323A patent/CN101298879A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359510A (en) * | 2011-09-23 | 2012-02-22 | 孔凡鲁 | Shifting fork device of dry plate friction clutch |
| CN109996971A (en) * | 2016-10-13 | 2019-07-09 | Zf腓特烈斯哈芬股份公司 | Control shell for clutch actuator |
| CN107939856A (en) * | 2017-12-20 | 2018-04-20 | 重庆小康工业集团股份有限公司 | Automobile liquid pressure type clutch assembly |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081105 |