CN103453044B - Automatic clutch for motorcycle actuator - Google Patents
Automatic clutch for motorcycle actuator Download PDFInfo
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- CN103453044B CN103453044B CN201310424384.5A CN201310424384A CN103453044B CN 103453044 B CN103453044 B CN 103453044B CN 201310424384 A CN201310424384 A CN 201310424384A CN 103453044 B CN103453044 B CN 103453044B
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Abstract
The invention discloses a kind of Vehicular electric clutch actuating mechanism, solve automatic clutch actuator efficiency low, the response time is long, and control accuracy is low, the problem that the life-span is short; Adopt brshless DC motor as power source, adopt ball screw as transmission device; Advance by controlling the brshless DC motor nut rotated on drive ball screw or retreat, nut, by rod member propelling vehicle clutch release fork, makes automobile clutch be separated or joint; Ball-screw-transmission efficiency is high, improves power and the speed of response of mechanism's output; The present invention also comprise the self-locking device of clutch actuating mechanism and Friction Facing on Clutch Disc in Heavy wearing and tearing after gap automatic regulating device, the while of ensureing that whole automatic clutch actuator is high efficiency, also can save electric energy when needs clutch is separated for a long time, improve motor working life; After clutch friction pad wear, the position of automatic adjusting mechanism motion parts, realizes control accuracy constant.
Description
Technical field
The invention belongs to motor-driven mechanical transmission fields, be specifically related to a kind of automatic clutch for motorcycle actuator.
Background technique
Automatic clutch system is by the operation automation of manual transmission clutch.This system is the basis of a lot of automatic speed changing form.First automatic clutch is the part forming AMT (Automated Manual Transmission), dry type DCT (Dual ClutchTransmission).Secondly, clutch is also widely used in the transmission system of motor vehicle driven by mixed power HEV (Hybrid ElectricVehicle).Although the type of belt drive of motor vehicle driven by mixed power is of all kinds, except the dynamic coupling device that some adopt planetary gears, most mixed power system still adopts clutch to realize the function such as vehicle shift and pattern switching.Wherein core is exactly the actuator of automatic clutch.
The actuator of automatic clutch mainly contains hydraulic pressure and electronic two kinds.But hydraulically powered automatic clutch system needs a set of hydraulic systems such as electric-motor pump, fuel tank, valve body, system complex.Motor-driven clutch actuating mechanism system architecture is relatively simple.Motor-driven clutch actuating mechanism adopts direct current generator as power source, common the rotary motion of motor is converted to straight line motion and the device slowed down comprises worm and gear, feed screw nut.Although structure is simple, transmission efficiency is low, causes the response time long, and car load power character is limited.Along with the development of mechanical transmissioning technology, ball screw [CN100427802C] becomes a kind of efficient, driving mechanism of can be used for the occasion of high-speed overload gradually, and the problem of noise have also been obtained solution.
Claimant proposes the clutch control based on CAN in patent of invention [a kind of motor-driven vehicle automatic clutch system, application number 201210072569.X], adopts direct current generator and ball screw as clutch actuating mechanism.But do not consider in this mechanism that the clearance self-regulating after mechanism's self-locking and clutch friction pad wear is whole, mechanism's power consumption can be caused to increase and be control strategy formulate bring difficulty.
The clearance self-regulating engagement positions that the present invention is directed to after the self-locking device and clutch friction pad wear do not related in the automatic clutch actuator mentioned in the patent of previous application is supplemented.For automatic clutch actuator, the realization of these two functions is very necessary.
Automobile clutch cohesive process is for engaging speed, and the requirement of engagement amount is very high, and requires that there are the ability and the self-lock ability that reliably rest on a certain position for a long time in automobile clutch actuator.Worm and gear, feed screw nut itself has self-lock ability, and adopt worm and gear, the electric actuator of feed screw nut need not consider the problem of this respect.But the reverse efficiency of ball screw is also very high, self-locking cannot be realized.If just install at motor and ball screw the object that Bidirectional non-return device can reach locking at an arbitrary position additional, but controlling continuous print shake can occur in the process that slowly engages of automobile clutch.
The friction plate of automobile clutch can produce certain wearing and tearing after a period of operation, after automobile clutch engages completely, diaphragm spring distortion on original base can strengthen, this just requires that clutch actuating mechanism can regulate initial position automatically according to Friction Facing on Clutch Disc in Heavy abrasion condition, after ensureing Friction Facing on Clutch Disc in Heavy wearing and tearing, automobile clutch still can engage completely.
Summary of the invention
Existing automatic clutch for motorcycle actuator efficiency is low, and the response time is long, and control accuracy is low, and the life-span is short, system complex.The invention provides a kind of novel automobile automatic clutch actuator, solve automatic clutch actuator efficiency low, the response time is long, and control accuracy is low, the problem that the life-span is short.
For solving the problems of the technologies described above, the present invention adopts following technological scheme to realize, and accompanying drawings is as follows:
A kind of automatic clutch for motorcycle actuator, form primarily of motor 1, ball-screw nut, clutch play automatic regulating apparatus and self-locking device, described ball-screw nut one end is connected with motor 1, the other end is connected with self-locking device, and ball-screw nut is made up of the screw rod 7 of ball screw and the nut 18 of ball screw; Described clutch play automatic regulating apparatus is arranged on the screw rod 7 of ball screw, between motor 1 and self-locking device, described clutch play automatic regulating apparatus by adjustment plate 21, balance spring 2, be contained in the adjustment block 3 in adjustment plate 21 outer rim and the adjustment cylinder 20 be contained on adjustment plate 21 sidewall forms; Described self-locking device is by overrunning clutch 9 and regulate hold down gag to form; It is inner that described ball-screw nut, clutch play automatic regulating apparatus and self-locking device are all contained in actuator's shell 10.
The screw rod 7 of ball screw described in technological scheme forms ball screw pair with the nut 18 of ball screw; The screw rod 7 of ball screw is connected by the projection of groove with motor 1, and the groove of the screw rod 7 of ball screw and the projection of motor 1 can move axially relatively;
The screw rod 7 of ball screw passes described adjustment plate 21 near motor 1 one end, balance spring 2 is installed between adjustment plate 21 and motor 1, it is inner that described adjustment block 3 is positioned at adjustment plate 21, adjustment spring 4 is had between adjustment block 3 and adjustment plate 21, adjustment block 3 has the trend of radially outward movement under the effect of adjustment spring 4 elastic force, described adjustment block 3 edge has sawtooth to be engaged mutually with the tooth on actuator shell 10 inwall, and described adjustment cylinder 20 to be inserted in adjustment plate 21 and vertically through adjustment block 3.
Adjustment plate 21 described in technological scheme is connected on the screw rod 7 of ball screw by the symmetrical angular contact bearing a19 that installs and angular contact bearing b23, described adjustment plate 21 relatively rotates with the screw rod 7 of ball screw, described angular contact bearing a19 and angular contact bearing b23 is positioned by the shaft shoulder of the screw rod 7 of ball screw and jump ring 24, and the screw rod 7 of adjustment plate 21 counter ball leading screw can not be axially moved.
Adjust described in technological scheme on cylinder 20 and be processed with inclined-plane, fit with the inclined-plane in described adjustment block 3; When described adjustment cylinder 20 deeply moves in adjustment plate 21, by inclined-plane, described adjustment block 3 is radially-inwardly moved, remove being engaged of adjustment block 3 and the tooth on actuator shell 10 inwall.
Described adjustment block 3 is provided with four pieces, and symmetry is arranged in the groove of adjustment plate 21;
Described adjustment cylinder 20 is provided with four.
Hold down gag is regulated to comprise compact heap 16, holddown spring 15, housing screw 14 and locking nut 13 described in technological scheme;
Described overrunning clutch 9 is provided with overrunning clutch inner ring 25 and External Ring of One-way Clutch 26, described overrunning clutch inner ring 25 is connected by the screw rod 7 of free-sliding spline with the ball screw away from motor 1 one end, and the screw rod 7 of ball screw can move axially by overrunning clutch relatively;
Described External Ring of One-way Clutch 26 is fixed on the bottom in clutch actuating mechanism shell 10 under the impacting force effect that housing screw 14, holddown spring 15, compact heap 16 compress successively; Described housing screw 14 is locked by locking nut 13;
During described overrunning clutch 9 reverse rotation, overrunning clutch inner ring 25 is External Ring of One-way Clutch 26 locking relatively.
The nut 18 of ball screw is provided with displacement transducer 6, and displacement transducer 6 is fixed in the widening 17 that is connected with the nut 18 of ball screw, and the measuring rod of displacement transducer 6 is fixed on clutch play regulating device.
The nut 18 of ball screw fixes pull bar 8, and one end of described pull bar 8 and the nut 18 of ball screw are fastenedly connected by widening 17, and the other end of pull bar 8, through clutch actuating mechanism shell 10, is fixed with the baffle plate 11 of outside; The nut 18 of ball screw drives widening 17, then drives pull bar 8 to promote baffle plate 11 to travel forward, the clutch of described baffle plate 11 drivening rod mechanism urges automobile clutch.
Described pull bar 8 is set to two.
Compared with prior art beneficial effect of the present invention is as follows:
Automatic clutch actuator of the present invention, because adopt ball screw as movement transforming device, so transmission efficiency is higher, responds more rapid.Gap automatic regulating device has been installed simultaneously, can after clutch friction pad wear, the position of automatic adjusting mechanism motion parts, realizes control accuracy constant.The while that the design of self-locking device ensure that whole automatic clutch actuator is high efficiency, also can save electric energy when needs clutch is separated for a long time, improve motor working life.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Fig. 1 is overall construction drawing of the present invention;
Fig. 2 is overall explosive view, gives shape and the position of each part of automatic clutch actuator;
Fig. 3 is the axial view of clutch actuating mechanism shell;
Fig. 4 is the plan view of clutch actuating mechanism shell;
Fig. 5 is the plan view of clutch actuating mechanism compact heap;
Fig. 6 is the plan view of clutch actuating mechanism compact heap;
Fig. 7 is the overrunning clutch erection drawing in clutch actuating mechanism;
Fig. 8 is the self-locking device erection drawing in clutch actuating mechanism;
Fig. 9 is the plan view of adjustment plate in clutch actuating mechanism;
Figure 10 is the left view of adjustment plate in clutch actuating mechanism;
Figure 11 is the sectional view of adjustment plate in clutch actuating mechanism;
Figure 12 is the plan view of adjustment block in clutch actuating mechanism;
Figure 13 is the left view of adjustment block in clutch actuating mechanism;
Figure 14 is the plan view adjusting cylinder in clutch actuating mechanism;
Figure 15 is the plan view of the state assembly relation of clutch actuating mechanism lash adjusting device when fixing;
Figure 16 is the left view of the state assembly relation of clutch actuating mechanism lash adjusting device when fixing;
The plan view of state assembly relation time Figure 17 is the suspension of clutch actuating mechanism lash adjusting device;
The left view of state assembly relation time Figure 18 is the suspension of clutch actuating mechanism lash adjusting device;
Figure 19 is regulating device before the adjustment of clutch actuating mechanism gap, the position erection drawing of ball screw and pull bar;
Figure 20 is regulating device after the adjustment of clutch actuating mechanism gap, the position erection drawing of ball screw and pull bar;
Figure 21 is the plan view of the position assembly relation between clutch actuating mechanism each part inner;
Figure 22 is the plan view of the position assembly relation between clutch actuating mechanism each part inner;
In figure:
1, motor; 2, balance spring; 3, adjustment block; 4, spring is adjusted; 5, pull bar set screw nut; 6, displacement transducer; 7, the screw rod of ball screw; 8, pull bar; 9, overrunning clutch; 10, actuator's shell; 11, baffle plate; 12, baffle plate set screw nut; 13, locking nut; 14, housing screw; 15, holddown spring; 16, compact heap; 17, widening; 18, the nut of ball screw; 19, angular contact bearing a; 20, cylinder is adjusted; 21, adjustment plate; 22, sensor attaching nut; 23, angular contact bearing b; 24, ball screw screw rod jump ring; 25, overrunning clutch inner ring; 26, External Ring of One-way Clutch; 27, overrunning clutch supported spring; 28, overrunning clutch roller.
Embodiment
Below in conjunction with accompanying drawing, the present invention is explained in detail:
This clutch actuating mechanism is followed successively by the baffle plate 11 of brshless DC motor 1, clutch play automatic regulating apparatus, ball-screw nut, displacement transducer 6, pull bar 8, self-locking device, outputting power from left to right.Clutch play regulating device comprises adjustment cylinder 20, the serrate adjustment block 3 of marginal zone, adjustment plate 21, adjustment spring 4, balance spring 2.Self-locking device comprises overrunning clutch 9, compact heap 16, holddown spring 15, housing screw 14, locking nut 13.
Screw rod 7 one end of ball screw is connected with the projection of motor by groove through clutch play regulating device, and the other end is connected with overrunning clutch inner ring 25 in self-locking device by free-sliding spline.External Ring of One-way Clutch 26 is fixed on bottom clutch actuating mechanism shell 10 under the impacting force effect of housing screw 14, holddown spring 15 and compact heap 16.
The adjustment plate 21 of clutch play regulating device is arranged on the screw rod 7 of ball screw by angular contact bearing a19 and angular contact bearing b23.Be with serrate adjustment block 3 to be positioned at adjustment plate 21 inner, and have the trend of radially outward movement under the effect of adjustment spring 4 elastic force, thus be engaged mutually with the tooth on actuator shell 10 inwall.Adjustment cylinder 20 is inserted in adjustment plate 21 vertically also through adjustment block 3.Adjustment cylinder 20 is processed with inclined-plane, fits with the inclined-plane in adjustment block 3.When adjustment cylinder 20 deeply moves in adjustment plate 21, adjustment block 3 radially-inwardly can be moved by inclined-plane, thus remove and being engaged of actuator's shell 10 inwall.
Displacement transducer 6 is fixed on the nut 18 of ball screw, and the measuring rod of displacement transducer 6 is fixed on clutch play regulating device.Through clutch actuating mechanism shell 10 on the nut 18 that pull bar 8 is fixed on ball screw, fix with the baffle plate 11 of outside.
The duty cycle signals that this electric clutch actuator is controlled by the motor sense of rotation and PWM receiving motor-drive circuit output reaches the object controlling automobile clutch Detaching and Lapping, and carries out feedback control by displacement transducer.Electric clutch actuator for this reason can be summed up and receive the expectation displacement signal of clutch control, and be realized.Random desired location can be parked in reliably for a long time, saving power when motor no signal inputs by self-locking device, simplify and control, improve electrical machinery life.Simultaneously gap adjust automatic engagement positions can after clutch friction pad wear automatic regulating gap, ensure that automobile clutch still can engage completely after friction disc wear.
Working procedure of the present invention is that motor 1 rotates, the screw rod 7 of ball screw is driven to rotate by the groove structure of the projection of motor 1 and the screw rod 7 of ball screw, the nut 18 of ball screw is made to drive the pull bar 8 be fixedly connected with by widening 17 to do axial-movement, pressed the withdrawal fork of automobile clutch again by baffle plate 11 drivening rod mechanism, automobile clutch is separated or combines.The present invention adopts brshless DC motor, the servo-system be made up of brushless direct current motor, has the advantages that torque is level and smooth, response is fast, control accuracy is high, therefore is applicable to the good power source of clutch actuating mechanism.This kind of motor had both had the feature that AC motor structure is simple, reliable, maintenance workload is little, had again excellent control performance same with direct current motor.Adopt the high ball screw of transmission efficiency can improve the speed of response of system as transmission device, promote the dynamic performance of car load.
Another aspect of the present invention relates to the self-locking device of automatic clutch actuator.
Due to reasons in structure, the transmission efficiency of ball-screw nut is very high, but also has very high reverse efficiency, when there being axial force to be applied on the nut 18 of ball screw simultaneously, the screw rod 7 of ball screw can rotate, the nut 18 of ball screw can axially move, if want to allow automobile clutch remain on a certain position for a long time, the voltage at motor two ends just can not be interrupted, now motor speed is zero, can electric energy be wasted like this, shorten electrical machinery life, be also unfavorable for the control of clutch.
In order to address this problem, install an overrunning clutch 9 and a set of adjustment hold down gag (compact heap 16, holddown spring 15, housing screw 14, locking nut 13) at ball screw additional away from motor 1 one end.It is very high that overrunning clutch 9 rotates forward efficiency, but overrunning clutch inner ring 25 External Ring of One-way Clutch 26 locking relatively during reverse rotation.Regulate hold down gag working principle to be that housing screw 14 presses holddown spring 15, then press compact heap 16, final compression External Ring of One-way Clutch 26.Locked by locking nut 13 after housing screw 14 mixes up impacting force.
The screw rod 7 of ball screw is connected by free-sliding spline with overrunning clutch inner ring 25, and External Ring of One-way Clutch 26 is arranged in clutch actuating mechanism shell 10, compresses by regulating the compact heap 16 in hold down gag.Drive the screw rod 7 of ball screw to rotate forward when motor 1 rotates forward, the overrunning clutch inner ring 25 that screw rod 7 tail end of ball screw is connected by free-sliding spline also efficiently rotates forward, External Ring of One-way Clutch 26 is motionless, the nut 18 of ball screw drives widening 17, drive pull bar 8 to promote baffle plate 11 again to travel forward, drive corresponding linkage mechanism propelling vehicle clutch to be separated rapidly.Because the External Ring of One-way Clutch of installing in the present invention 26 is subject to the impacting force effect of hold-down mechanism, when motor 1 no signal inputs, under the effect of Automobile Clutch Plate Spring restoring force, the screw rod 7 of ball screw has the trend of reversion, now overrunning clutch inner ring 25 is relative to External Ring of One-way Clutch 26 locking, but the moment of torsion that the impacting force that the moment of torsion only relying on the restoring force of Automobile Clutch Plate Spring to convert to cannot overcome hold down gag generation generates, so now clutch actuating mechanism can to remain on any given position when motor 1 does not have signal to input motionless, reach the object of self-locking.
When needs automobile clutch in conjunction with time, motor 1 counterrotating, the moment of torsion that the impacting force overcoming hold-down mechanism under the moment of torsion acting in conjunction that the moment of torsion of motor 1 generation and the restoring force of Automobile Clutch Plate Spring are changed produces, ensure that automobile clutch steadily can combine with arbitrary speed, the moment of torsion that the moment of torsion that motor 1 counterrotating produces converts to Automobile Clutch Plate Spring restoring force is the same, be a part for the moment of torsion driving External Ring of One-way Clutch 26 overcome friction to rotate, the phenomenon of shake can not be produced.
Gap automatic regulating device after the invention still further relates to Friction Facing on Clutch Disc in Heavy wearing and tearing.
After automobile running a period of time, Friction Facing on Clutch Disc in Heavy will produce certain wearing and tearing, the distortion after clutch engages completely of diaphragm spring in automobile clutch can strengthen, for push type clutch actuator, require that the pull bar 8 of clutch actuating mechanism after Friction Facing on Clutch Disc in Heavy wearing and tearing moves a certain distance backward on original base, ensure that automobile clutch still can engage completely.
Pull bar of the present invention 8 is fastenedly connected by widening 17 with the nut 18 of ball screw, and is suspend at the position ball-screw nut that automobile clutch engages completely together with pull bar 8.Automobile clutch can adjust ball-screw nut and pull bar 8 initial position according to concrete abrasion condition after engaging automatically.
For reaching this purpose, the present invention devises a set of gap automatic regulating device.Gap automatic regulating device comprises adjustment cylinder 20, the serrate adjustment block 3 of marginal zone, adjustment plate 21, adjustment spring 4, balance spring 2.The screw rod 7 of ball screw, is connected with motor 1 by groove through adjustment plate 21 near motor one end.The groove of the screw rod 7 of ball screw and the projection of motor can axial relative movement one segment distances and do not affect the transmission of rotation.One end away from motor of the screw rod 7 of ball screw is connected with overrunning clutch inner ring 25 by free-sliding spline, also can move axially a segment distance relative to overrunning clutch and not affect the transmission of rotating.This two segment distance and clutch play adjustment amount.A balance spring 2 is installed between adjustment plate 21 and motor 1.By two symmetrical angular contact bearing a19 of installing and angular contact bearing b23, adjustment plate 21 is connected on the screw rod 7 of ball screw, makes adjustment plate 21 can tension pressurized relative to the screw rod 7 of ball screw.Positioned by the shaft shoulder of the screw rod 7 of ball screw and jump ring 24 angular contact bearings a19 and angular contact bearing b23, the screw rod 7 of adjustment plate 21 counter ball leading screw cannot be axially moved, but the screw rod 7 of ball screw can rotate relative to adjustment plate 21.Adjustment block 3 has four, and symmetry is arranged in the groove of adjustment plate 21, and root inserts adjustment cylinder 20, and adjustment cylinder 20 and adjustment block 3 have the inclined-plane cooperatively interacted.Adjustment spring 4 is had between adjustment block 3 and adjustment plate 21.There is sawtooth at adjustment block 3 edge, act at adjustment spring 4 and lower full circle post 20 axially outwardly, adjustment block 3 radially outward is given prominence to, and makes to be engaged by sawtooth with the inwall of clutch actuating mechanism shell 10 in automobile clutch separation process always, axially cannot move.
Gap automatically adjusts and occurs in motor 1 counterrotating until time automobile clutch enters full jointing state.When Automotive Clutch Engagement closes to an end, the nut 18 on ball screw will press adjustment cylinder 20 outstanding in adjustment plate 21.Have skewed slot in the middle part of adjustment cylinder 20, pressed rear drive adjustment block 3 to central motion, the tooth that adjustment block 3 is engaged with actuator shell 10 inwall after central motion is separated.Lash adjusting device, ball-screw nut is in state of suspension together with pull bar 8.
If now Friction Facing on Clutch Disc in Heavy does not does not wear and tear, under the effect of balance spring 2, adjustment plate 21, it is motionless that ball-screw nut remains on original position together with pull bar 8.If Friction Facing on Clutch Disc in Heavy has certain wearing and tearing, after automobile clutch engages, automobile diaphragm spring finger tip still has axial force, and pull bar will have certain load.Therefore after Friction Facing on Clutch Disc in Heavy has certain wearing and tearing, the tooth be engaged when adjustment block 3 and actuator shell 10 inwall is separated, when ball-screw nut is in state of suspension together with pull bar 8, adjustment plate 21, ball-screw nut moves near motor side together with pull bar 8 is overall under the effect of this load.After load and balance spring 2 re-establish balance, ball-screw nut is parked in new equilibrium position again together with pull bar 8 adjustment plate 21.Motor rotates forward, and the nut 18 of ball screw separates with adjustment plate 21.Come back to original position at the pressure effect downward full circle post 20 and adjustment block 3 that adjust spring 4, edge and actuator's shell 10 inwall of adjustment block 3 are engaged in new position by sawtooth again, reach the self-adjusting object of post gap of clutch abrasion.
Sensor 6 itself is arranged in the widening 17 that is bolted with the nut 18 of ball screw.The measuring rod of sensor is arranged in adjustment plate 21 by nut 22.The nut 18 so just can measuring ball screw, relative to the position of the screw rod 7 of ball screw, also just can converse automobile clutch position.
Lower mask body introduces the overall process of automatic clutch actuator controlled clutch Detaching and Lapping of the present invention.
At first, automobile clutch is in complete jointing state, and namely the nut 18 of ball screw is in the position near motor 1 one end, is designated as dead-center position.The screw rod 7 of ball screw is connected with overrunning clutch inner ring 25 by free-sliding spline away from motor 1 one end.It is very high that overrunning clutch inner ring 25 rotates forward efficiency relative to External Ring of One-way Clutch 26, reverse locking.Motor 1 rotates forward and drives the screw rod 7 of ball screw to rotate forward, nut 18 travels forward, and the pull bar 8 be fastenedly connected by widening 17 with nut 18 is travelled forward, and promotes baffle plate 11, baffle plate 11 promotes linkage mechanism propelling vehicle clutch release fork, the quick and complete separation of automobile clutch.Because for the control of automobile clutch, require that automobile clutch separation process is quick, thoroughly.So whole process carry out very rapid.
After automobile clutch is separated, when motor 1 does not have signal to input, under the effect of automobile diaphragm spring restoring force, there is pull bar 8 rollback backward making clutch actuating mechanism, nut 18 rollback of ball screw, the trend of screw rod 7 counterrotating of ball screw.But the screw rod of ball screw 7 is connected with overrunning clutch inner ring 25 by free-sliding spline away from motor 1 one end, overrunning clutch inner ring 25 is relative to locking during External Ring of One-way Clutch 26 counterrotating, and outer shroud is compressed by hold down gag, the moment of torsion that the frictional force that now moment of torsion of the screw rod 7 of ball screw is not enough to overcome hold down gag generation converts to, so after automobile clutch is separated, when motor does not have signal to input, automobile clutch can reliably rest on any position.
When needs automobile clutch engages time, motor 1 counterrotating, drive screw rod 7 counterrotating of ball screw, now the moment of torsion of motor 1 adds the moment of torsion that moment of torsion that Automobile Clutch Plate Spring converts to is enough to overcome frictional force that External Ring of One-way Clutch 26 produces by hold-down mechanism and converts to, such automobile clutch just can be smooth-going, engages with arbitrary speed.
The screw rod 7 of ball screw is stuck in the adjustment plate 21 in gap automatic regulating device by the angular contact bearing a19 of two symmetrical installations and angular contact bearing b23 near motor 1 one end, cannot do relative motion.A balance spring 2 is had between adjustment plate 21 and motor 1.There is outstanding adjustment block 3 at adjustment plate 21 edge, and have adjustment spring 4 between adjustment block 3 and adjustment plate 21, there is sawtooth at the edge of adjustment block 3, is engaged mutually with the sawtooth of clutch actuating mechanism shell 10 inwall.Suffered by clutch actuating mechanism axial force all born by these sawtooth.The adjustment cylinder 20 be inserted between adjustment plate 21 and adjustment block 3 will be pressed when the nut 18 of ball screw return back to the dead-center position relative to screw rod 7 time.Coordinated by inclined-plane between adjustment cylinder 20 and adjustment block 3, after adjustment cylinder 20 is depressed, the power that adjustment block 3 overcomes adjustment spring 4 is driven, and to adjustment plate 21 central motion, now regulating device, ball-screw nut is in state of suspension together with pull bar 8.If Friction Facing on Clutch Disc in Heavy does not does not wear and tear, when the nut 18 of ball screw is in dead-center position, automobile clutch engages completely, and now clutch actuating mechanism can not be subject to the effect of axial force.Regulating device, ball-screw nut together with pull bar 8 suspend after under the effect of balance spring 2 by being still in original position, do not change.If Friction Facing on Clutch Disc in Heavy has certain wearing and tearing, when the nut 18 of ball screw is in dead-center position, automobile clutch does not engage completely, now clutch actuating mechanism will still be subject to the effect of axial force, regulating device, ball-screw nut retreats together with pull bar 8, rests on new equilibrium position after re-establishing balance with balance spring 2.The nut 18 that motor 1 rotates forward ball screw is again separated with adjustment plate 21, now adjust cylinder 20 to eject, the be adjusted effect of spring 4 of adjustment block 3 outwards extrudes, again be engaged with actuator shell 10 that (Friction Facing on Clutch Disc in Heavy does not does not wear and tear and is engaged in origin-location, new position is engaged in after wearing and tearing), bear automobile clutch and be separated the axial force produced.
Displacement transducer 6 is fixed in the widening 17 that is connected with the nut of ball screw, and measuring rod is fixed on clutch play regulating device.One end of pull bar 8 is fixed in the widening 17 of the nut of ball screw by bolt 5, the shell 10 through clutch actuating mechanism of the other end, same with the baffle plate 11 of outside fixing by bolt 12.Motor 1 rotates, and drive the screw rod 7 of ball screw to rotate, the nut 18 of ball screw axially moves, and drive widening 17, pull bar 8, and baffle plate 11 axially moves.Baffle plate 11, at the least significant end of clutch actuating mechanism, is the power output element of whole clutch actuating mechanism, controls automobile clutch Detaching and Lapping by a series of rod member.
Claims (9)
1. an automatic clutch for motorcycle actuator, form primarily of motor (1), ball-screw nut, clutch play automatic regulating apparatus and self-locking device, it is characterized in that: described ball-screw nut one end is connected with motor (1), the other end is connected with self-locking device, and described ball-screw nut is made up of the screw rod (7) of ball screw and the nut (18) of ball screw; Described clutch play automatic regulating apparatus is arranged on the screw rod (7) of ball screw, be positioned between motor (1) and self-locking device, described clutch play automatic regulating apparatus by adjustment plate (21), balance spring (2), be contained in the adjustment block (3) in adjustment plate (21) outer rim and the adjustment cylinder (20) be contained on adjustment plate (21) sidewall forms; Described self-locking device is by overrunning clutch (9) and regulate hold down gag to form; It is inner that described ball-screw nut, clutch play automatic regulating apparatus and self-locking device are all contained in actuator's shell (10);
The screw rod (7) of ball screw passes described adjustment plate (21) near motor (1) one end, it is inner that described adjustment block (3) is positioned at adjustment plate (21), adjustment spring (4) is had between adjustment block (3) and adjustment plate (21), adjustment block (3) has the trend of radially outward movement under the effect of adjustment spring (4) elastic force, described adjustment block (3) edge has sawtooth to be engaged mutually with the tooth on actuator shell (10) inwall, and described adjustment cylinder (20) to be inserted in adjustment plate (21) and vertically through adjustment block (3); Described adjustment cylinder (20) is deeply mobile in adjustment plate (21), removes being engaged of adjustment block (3) and the tooth on actuator shell (10) inwall.
2. a kind of automatic clutch for motorcycle actuator according to claim 1, is characterized in that:
The screw rod (7) of ball screw and the nut (18) of ball screw form ball screw pair; The screw rod (7) of ball screw is connected by the projection of groove with motor (1), and the groove of the screw rod (7) of ball screw and the projection of motor (1) can move axially relatively; Balance spring (2) is installed between adjustment plate (21) and motor (1).
3. a kind of automatic clutch for motorcycle actuator according to claim 2, is characterized in that:
Described adjustment plate (21) is by the symmetrical angular contact bearing a(19 installed) and angular contact bearing b(23) be connected on the screw rod (7) of ball screw, described adjustment plate (21) relatively rotates with the screw rod (7) of ball screw, described angular contact bearing a(19) and angular contact bearing b(23) positioned by the shaft shoulder of the screw rod (7) of ball screw and jump ring (24), the screw rod (7) of adjustment plate (21) counter ball leading screw can not be axially moved.
4. a kind of automatic clutch for motorcycle actuator according to claim 2, is characterized in that:
Described adjustment cylinder (20) is processed with inclined-plane, fits with the inclined-plane in described adjustment block (3); When described adjustment cylinder (20) is deeply moved in adjustment plate (21), by inclined-plane, described adjustment block (3) is radially-inwardly moved.
5. a kind of automatic clutch for motorcycle actuator according to claim 2, is characterized in that:
Described adjustment block (3) is provided with four pieces, and symmetry is arranged in the groove of adjustment plate (21);
Described adjustment cylinder (20) is provided with four.
6. a kind of automatic clutch for motorcycle actuator according to claim 1, is characterized in that:
Described adjustment hold down gag comprises compact heap (16), holddown spring (15), housing screw (14) and locking nut (13);
Described overrunning clutch (9) is provided with overrunning clutch inner ring (25) and External Ring of One-way Clutch (26), described overrunning clutch inner ring (25) is connected with the screw rod (7) of the ball screw away from motor (1) one end by free-sliding spline, and the screw rod (7) of ball screw can move axially by overrunning clutch relatively;
Described External Ring of One-way Clutch (26) is fixed on the bottom in clutch actuating mechanism shell (10) under the impacting force effect that housing screw (14), holddown spring (15), compact heap (16) compress successively; Described housing screw (14) is locked by locking nut (13);
During described overrunning clutch (9) reverse rotation, overrunning clutch inner ring (25) is External Ring of One-way Clutch (26) locking relatively.
7. a kind of automatic clutch for motorcycle actuator according to claim 1, is characterized in that:
The nut (18) of ball screw is provided with displacement transducer (6), and displacement transducer (6) is fixed in the widening (17) that is connected with the nut of ball screw (18), and the measuring rod of displacement transducer (6) is fixed on clutch play regulating device.
8. a kind of automatic clutch for motorcycle actuator according to claim 1, is characterized in that:
At the upper fixing pull bar (8) of the nut (18) of ball screw, one end of described pull bar (8) and the nut (18) of ball screw are fastenedly connected by widening (17), the other end of pull bar (8), through clutch actuating mechanism shell (10), is fixed with the baffle plate (11) of outside; The nut (18) of ball screw drives widening (17), then drives pull bar (8) promotion baffle plate (11) to travel forward, the clutch of described baffle plate (11) drivening rod mechanism urges automobile clutch.
9. a kind of automatic clutch for motorcycle actuator according to claim 8, is characterized in that:
Described pull bar (8) is set to two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310424384.5A CN103453044B (en) | 2013-09-17 | 2013-09-17 | Automatic clutch for motorcycle actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310424384.5A CN103453044B (en) | 2013-09-17 | 2013-09-17 | Automatic clutch for motorcycle actuator |
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| Publication Number | Publication Date |
|---|---|
| CN103453044A CN103453044A (en) | 2013-12-18 |
| CN103453044B true CN103453044B (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310424384.5A Active CN103453044B (en) | 2013-09-17 | 2013-09-17 | Automatic clutch for motorcycle actuator |
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| CN (1) | CN103453044B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019150B (en) * | 2014-05-16 | 2016-06-22 | 武汉合康动力技术有限公司 | A kind of ball screw type electric control clutch actuator with self-locking device |
| CN104595478B (en) * | 2015-01-26 | 2017-02-01 | 吉林大学 | Mechanical type automatic transmission gear selecting and shifting actuation mechanism for vehicle |
| CN108050169B (en) * | 2017-12-03 | 2019-10-18 | 中国直升机设计研究所 | A kind of manipulation apparatus for adjusting force |
| CN108284411B (en) * | 2018-03-31 | 2024-03-15 | 上汽通用五菱汽车股份有限公司 | Clutch pressing device |
| CN108709081B (en) * | 2018-05-25 | 2019-11-05 | 温州职业技术学院 | Bearing Mounting device |
| CN116771874B (en) * | 2023-08-16 | 2023-11-14 | 康辉医疗科技(苏州)有限公司 | Lifting type anti-reversing transmission device with screw rod |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2316822C2 (en) * | 1973-04-04 | 1984-09-06 | Knorr-Bremse, 1000 Berlin und 8000 München | Wear adjustment device for brakes, in particular rail vehicle brakes |
| RO97637B1 (en) * | 1987-04-17 | 1989-09-01 | Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Autovehicule | Mechanism for automatically regulating clutch clearance |
| CN102052415A (en) * | 2009-11-04 | 2011-05-11 | 同济大学 | Clutch electric control mechanism for vehicle |
| CN102518710B (en) * | 2011-10-27 | 2014-04-02 | 奇瑞汽车股份有限公司 | Semi energy storage type electromechanical brake and automobile |
| JP2013174277A (en) * | 2012-02-24 | 2013-09-05 | Exedy Corp | Actuator of clutch |
| CN203453332U (en) * | 2013-09-17 | 2014-02-26 | 吉林大学 | Automatic clutch executing mechanism for vehicle |
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