CN1320773A

CN1320773A - Steel belt clutch

Info

Publication number: CN1320773A
Application number: CN 01111562
Authority: CN
Inventors: 杨斌彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-26
Filing date: 2001-03-18
Publication date: 2001-11-07

Abstract

A steel belt clutch has drive wheel and driven wheel in axial line opposite as well as steel belts rounding on the circuit face of the driven wheel. One end of steel belt is connected in fix mode or in moving mode with the drive wheel and the other end or the drawing friction block connected on this end is connected in relative fixture with the drive wheel and contacted in friction with the driven wheel. There are pressing mechanisms at the end part of frictional contacting between the steel belt and the driven wheel or on the drawing friction block. At least one pressing mechanism has the controlling mechanism of the clutch to transfer the stibilized and single direction torque power for single direction engagement and feedback control of the clutch.

Description

Steel belt clutch

The present invention relates to the clutch that a kind of power car transmits engine rotation power, particularly the automobile of existing land locomotion transmits the clutch of engine rotation power, and be the one way engagement transferring power, feed back the not clutch of transferring power, and further utilize the clutch operation solenoidoperated cluthes to separate and combine, and one way engagement, the controlled clutch of feedback.

The clutch of existing vehicle transmission rotational power all has driving disc and driven disc, has in conjunction with the frictional connection parts between driving disc and the driven disc, and must be furnished with and handle the clutch operation that the frictional connection parts merge, leave.The clutch of these transmission rotational powers, under bonding state, the forward transferring power is fed back also transferring power.Existing automatic clutch just divides to be unable to do without after motor reaches certain rotating speed, just cannot shift gears, so can't use separately.Driven disc is fixedlyed connected with frictional connection parts friction plate, and clutch produces pressure by driving platen to friction plate, and with driving disc (flywheel) frictional engagement, make motor and flywheel and gearbox interlock.When double-action mechanism (clutch operation) by being connected with platen, the oil cylinder working-pressure or the elastic pressure of platen are removed, platen and friction plate are left, also make friction plate leave flywheel and no longer compress, also just not mutual transferring power.So when each shift speed change, all will step on dynamic clutch, make that driver's pin and leg are very tired.When automobile slide or when the revolution of engine crankshaft, descend, car body is under effect of inertia, and the gearbox input shaft also will keep original revolution, and motor will be driven by the input shaft of gearbox on the contrary, to change the consumption part energy virtually, also make motor fatigue simultaneously and the minimizing life-span.Will step on the dynamic clutch pedal by the driver in case of necessity, change neutral gear into, make motor not with the gear-box axle interlock, this just requires the driver often to step on dynamic clutch, has increased driver's fatigue strength greatly.

The rotating speed that the purpose of this invention is to provide a kind of driven disc is higher than that the driving disc rotating speed just can separate automatically, and can be steadily in conjunction with the one way engagement steel belt clutch of transmitting torque power, and then provide a kind of can one way engagement again can two-way engagement steel belt clutch.

Steel belt clutch of the present invention still has relative driving disc of coaxial line and driven disc, it is characterized in that: the steel band that is looped around the driven disc side face in addition; The steel band two ends are connected with driving disc, can fixedly connected with driving disc by an end, and the other end is connected with the driving disc relative fixed, also can all be connected with the driving disc relative fixed at two ends; One end of steel band or relative fixed fixedly connected with driving disc is connected, and the traction brake pad that this other end of the other end of steel band or steel band connects is connected with the driving disc relative fixed, and with the driven disc rubbing contact; The steel band two ends all are connected with the driving disc relative fixed, traction brake pad and driven disc rubbing contact that this end of a wherein end of steel band or steel band connects; In order to guarantee the rubbing contact of steel band and driven disc, prevent that particularly the centrifugal force that the steel band high speed rotating forms from making the rubbing contact separation or having reduced frictional force, the end of steel band and driven disc rubbing contact or traction brake pad have steel band or draw the pressure mechanism that brake pad is pressed to driven disc.Driving disc rotates along the steel band direction from this end of steel band and driven disc rubbing contact, and steel band is just along with rotation.When the rotating speed of driving disc is desired to be higher than the rotating speed of driven disc, be equivalent to the relative driving disc counter-rotating of driven disc.At this moment, between steel band rubbing contact position and the driven disc frictional force is arranged, driven disc is just drawing steel band and is binding round tightly at driven disc, and then steel band passes to driven disc with rotational power, is being with driven disc to rotate, and is equivalent to existing clutch and is in bonding state.When the rotating speed of driving disc is desired to be lower than the rotating speed of driven disc, be equivalent to driven disc this end from rubbing contact, rotate relative to driving disc to the other end along steel band, steel band rubbing contact position in the driven disc effect makes steel band form relaxed state, transfer motion power not then between driving disc and the driven disc is equivalent to existing clutch and is in separated state.At this moment steel belt clutch is in and surmounts state.

So-called pressure mechanism is exactly the traction brake pad generation pressure to steel band rubbing contact end or connection, presses to the structure member of driven disc.Pressure mechanism can be spring or elastic member or hydraulic mechanism or electromagnetic pressure mechanism, perhaps the cam rotation mechanism or the connecting rod toggle mechanism of driving of centrifugal gravity piece or flexible drive.Pressure mechanism is arranged on the back side of the traction brake pad of steel band rubbing contact end or connection, and the traction brake pad of steel band rubbing contact end or connection is pressed to driven disc.General pressure mechanism be arranged on driving disc and steel band rubbing contact end or the traction brake pad that is connected between.For circle rubbing contact in the traction brake pad that connects and the driven disc, and adopt centrifugal pressure mechanism, centrifugal only is arranged on the traction brake pad, preferably with draw brake pad and be integral.These pressure mechanisms can reach the pressure state of setting or pressure relief mechanism by the control of clutch operation.As stirring spring, stir the hydraulic pressure changing valve, stirring cam or connecting rod, reach the pressure state of setting, pressure relief mechanism.The steel band end is connected with driving disc, can be fixedly connected, also can be that relative fixed connects, as hinged, clamping, articulate, be slidingly connected etc.The steel band end that has pressure mechanism is to be connected with the driving disc relative fixed, and is the relative connection of the circumferential play of driving disc relatively, as the connection by shackle member, by being slidingly connected of the articulating of hanging part, slide block or sliding pin and chute etc.

The traction brake pad of steel band rubbing contact end or connection can with the cylindrical rubbing contact of driven disc, also can with the interior round rubbing contact of driven disc, can also with the axial sides rubbing contact of driven disc.Steel band is the parts of transferring power, is equivalent to the friction plate of friction clutch.Steel band affects by end and driven disc frictional force, binds round tightly at driven disc, by the rubbing action transferring power.So steel band is general and the driven disc facing surfaces, is preferably with friction layer, can plate or scribble friction layer, also can be with the friction lining.The traction brake pad also can be regarded the part of the end of steel band and driven disc rubbing contact as, be a kind of structural type of steel band end, be steel band and the end of driven disc rubbing contact and the traction brake pad that is connected with steel band, can be referred to as the rubbing contact end of steel band or the end of being called for short steel band.So the steel band end has the traction brake pad, can be connected with driving disc by the traction brake pad.The two ends of steel band are connected with driving disc, and wherein an end of steel band has the pressure mechanism of the traction brake pad of steel band or steel band connection being pressed to driven disc at least; The steel band two ends all have pressure mechanism, the pressure mechanism of at least one end should have clutch operation, so that as existing clutch, can be at any time with the pressure of clutch operation pressure relief mechanism and this steel band rubbing contact end to the pressure rubbing contact of driven disc, form the clutch operation of clutch.Being connected and connecting by pressure mechanism between the end of steel band and the driving disc.Pressure mechanism can more effectively keep the rubbing contact between steel band rubbing contact end and the driven disc, increases the influence of driven disc to steel band, make steel band more reliable more tightly with the driven disc frictional engagement.So just can divide several situations.

First kind of situation: an end of steel band is connected with driving disc, the other end of steel band is pressed to driven disc and driven disc rubbing contact and is had the pressure mechanism of the steel band end being pressed to driven disc, and this other end of steel band can be connected with the driving disc relative fixed with the link of pressure mechanism by pressure mechanism or steel band; Perhaps, the two ends of steel band are connected with driving disc, wherein at least one end is that relative fixed is connected with driving disc, one end of steel band is pressed to driven disc and driven disc rubbing contact, and have a pressure mechanism of steel band being pressed to driven disc, this end of steel band and being connected of driving disc are exactly that relative fixed connects, the steel band end connection of driving disc play relatively just, as be slidingly connected, clamping etc.Like this, driving disc rotates along the steel band direction from this end (being provided with the steel band end of pressure mechanism) of steel band and driven disc rubbing contact, and steel band is just along with rotation.When the rotating speed of driving disc is desired to be higher than the rotating speed of driven disc, be equivalent to the relative driving disc counter-rotating of driven disc.At this moment, driven disc is pressed in the steel band end, between steel band end and the driven disc frictional force is arranged, driven disc is just drawing steel band and is binding round tightly at driven disc, then steel band passes to driven disc with the rotational power of driving disc, is being with driven disc to rotate, and is equivalent to existing clutch and is in bonding state.When the rotating speed of driving disc is desired to be lower than the rotating speed of driven disc, this end (being provided with the steel band end of pressure mechanism) that is equivalent to steel band and driven disc rubbing contact, rotate to the other end along steel band, it is loosening to (driven disc) with respect to oneself that frictional force band between driven disc and the steel band (moving back) steel band, transfer motion power not then between driving disc and the driven disc is equivalent to existing clutch and is in separated state.At this moment steel belt clutch is in and surmounts state.This has just formed unidirectional delivery power, oppositely the clutch that separates automatically.

Second kind of situation: the two end part of steel band are connected with the driving disc relative fixed, the two end part of steel band all have the pressure mechanism of steel band being pressed to driven disc, wherein at least one end has clutch operation, and driven disc and driven disc rubbing contact can be pressed in the two end part of steel band.Like this, the steel belt clutch of formation just can bi-directional power, and it is consistent that the process that both direction transmits rotational power and above-mentioned first kind of situation clutch are in the bonding state process.Have clutch operation as an end, just can change the clutch state of this direction transferring power, form one way engagement, the controlled steel belt clutch of feedback by the solenoidoperated cluthes operating mechanism.All have clutch operation as two ends, just can change the clutch state of both direction transferring power, form the controlled steel belt clutch of two-way engagement by the solenoidoperated cluthes operating mechanism.When removing the pressure of an end pressure mechanism by clutch operation, desire to be lower than the rotating speed of driven disc as the revolution of driving disc, be equivalent to driven disc this end (the steel band end that does not have pressure relief) from steel band and driven disc rubbing contact, rotate along the steel band end of steel band to pressure relief, driven disc has pressure to wipe this end rubbing action that contacts with steel band, be with (moving back) steel band loosening to (driven disc) with respect to oneself, transfer motion power not then between driving disc and the driven disc is equivalent to existing clutch and is in separated state.

By above content as can be known, driven disc is pressed in the end of steel band, can come from self of steel band with the pressure of driven disc rubbing contact, this end as steel band produces the pressure of pressing to driven disc, the preferably outer haulage gear that is added with pressure mechanism or affects with driven disc to driven disc transition bending.The pressure mechanism that one end of steel band has can be the spring that is connected between this end of steel band and the driving disc, it also can be the oil hydraulic cylinder that is connected between driving disc and the steel band end, can also be the centrifugal lever that is rotatably connected between driving disc and the steel band end, more can be to be rotatably connected on cam and the centrifugal fork of driving disc side face contact at the steel band end.Pressure mechanism can directly be connected with steel band, also can connect by middle link.Steel band this end the brake pad relative with driven disc can also be set, pressure mechanism is connected between brake pad and the driving disc.Be arranged on the inner peripheral surface of driven disc as brake pad, pressure mechanism can be and centrifugal of brake pad all-in-one-piece then just quite to have formed a kind of driven disc haulage gear.

Concrete more a kind of situation:

Steel belt clutch of the present invention still has relative driving disc and driven disc, it is characterized in that: the steel band that is looped around driven disc in addition; One end of steel band and driving disc relative fixed, perhaps this end of steel band is stuck in the deck of driving disc, and perhaps the contract piece of this end of steel band is stuck in the deck of driving disc; The contract piece of the other end of steel band is stuck in the deck of driving disc, is provided with the pressure mechanism of contract piece and steel band end being pressed to driven disc between the contract piece of this other end of steel band and the fixed base of driving disc.The contract piece that the end of the end of steel band and driving disc relative fixed or steel band is stuck in the deck of driving disc or steel band end is stuck in the deck of driving disc, and steel band is just along with driving disc rotates.Steel band can be the end and the driving disc relative fixed of an end, and the other end of steel band has the contract piece, and the contract piece is stuck in the deck of driving disc.Between the contract piece of this other end of steel band and the fixed base of driving disc, be provided with the pressure mechanism that driven disc is pressed in the contract piece and the steel band end of this end.The two end part of steel band can all have the contract piece, and the contract piece at two ends is stuck in the corresponding deck of driving disc, all are provided with the pressure mechanism of contract piece and steel band end being pressed to driven disc between the contract piece at steel band two ends and the fixed base of driving disc.Just, the end that deck was fixed or be stuck in to steel band and driving disc also changes into and has the contract piece, is stuck in its corresponding deck of driving disc, between the fixed base of this contract piece and driving disc, also is provided with the pressure mechanism of this contract piece and this end of steel band being pressed to driven disc.Be looped around the steel band of driven disc, preferably more than the driven disc half-turn, can be around near a circle or a circle half or two circles or two circles half or three circles, generally at three circles below half.The above steel band of one circle is that spiral surrounding is outside driven disc.Be preferably with leaf spring between contract piece and the pressure mechanism.

Like this, steel belt clutch of the present invention can be the end of steel band one end, and with driving disc relative fixed or clamping, the other end of steel band has the contract piece, the contract piece is stuck in the deck of driving disc, and and the fixed base of driving disc between be provided with the pressure mechanism of contract piece and steel band end being pressed to driven disc.Steel band becomes flexible with respect to driven disc.At this moment, driving disc is from being provided with the steel band end of pressure mechanism, along around steel band rotate to the steel band end that pressure mechanism is not set, steel band is just along with the driving disc rotation.When the rotating speed of driving disc is desired to be higher than the rotating speed of driven disc, be equivalent to the relative driving disc counter-rotating of driven disc.Because pressure mechanism is always pressed to driven disc with contract piece and steel band end, having the driven dribbling of frictional force steel band between steel band end and the driven disc binds round tightly at driven disc, then steel band passes to driven disc with the rotational power of driving disc, is equivalent to existing clutch and is in bonding state.Driving disc just can be normally by steel band to the driven disc transferring power.Between motor car engine and gearbox, just can normally drive gearbox and vehicle driving as this clutch device.When the rotating speed of driving disc is desired to be lower than the rotating speed of driven disc, be equivalent to driven disc relative to driving disc from the steel band end that is provided with pressure mechanism along around steel band rotate to the steel band end that pressure mechanism is not set, because pressure mechanism is always pressed to driven disc with contract piece and steel band end, it is loosening to (driven disc) with respect to oneself that (moving back) steel band in driven dribbling, transfer motion power not then between driving disc and the driven disc is equivalent to existing clutch and is in separated state.Such clutch is used in the automobile, as when needs are shifted gears, needn't step on dynamic clutch, makes clutch on-off work, as long as decontrol or lift accelerator pedal (minimizing fuel delivery), engine revolution is dropped to be lower than the revolution of one of gearbox, just can shift gears.This is that gearbox does not drive motor because clutch is the unidirectional delivery moment of torsion, and transferring power not between motor and the gearbox then can be shifted gears easily.After the gearshift, opening the throttle improves engine revolution again, and driving disc just binds round at driven disc by steel band again a little more than with the driven disc revolution of an interlock of gearbox the time tightly, the clutch of the unidirectional delivery moment of torsion that forms drives the gearbox co-rotation, drives gearbox and vehicle.Same vehicle also needn't stepping on clutch when sliding, and motor just can not driven by vehicle and gearbox feedback, and the wearing and tearing of minimizing motor.In order to make clutch of the present utility model can also control clutch at any time, pressure mechanism can have stirs by control turning lever or shift fork etc. that pressure mechanism is provided with or the clutch operation of pressure relief.Clutch operation pressure relief mechanism is during to the pressure of steel band, steel band integral body just can keep with respect to the loosening state of driven disc, even the driving disc rotating speed is higher than driven disc, driven disc can not draw and drive steel band lock ring oneself (driven disc), can not constitute the clutch bonding state, and form the long separated state of clutch.When recovering to be provided with pressure mechanism to the pressure of steel band, just recovered required unidirectional delivery torque condition again as clutch operation.

Pressure mechanism can be spring or elastic member or hydraulic mechanism or electromagnetic pressure mechanism, perhaps the cam rotation mechanism or the connecting rod toggle mechanism of driving of centrifugal gravity piece or flexible drive.These pressure mechanisms can reach the pressure state of setting or pressure relief mechanism by the control of clutch operation.As stirring spring, stir the hydraulic pressure changing valve, stirring cam or connecting rod, reach the pressure state of setting, pressure relief mechanism.In order to make unidirectional delivery power still is but that two-way all transferring power reach controlled, the two end part of steel band can all have the contract piece, the contract piece at two ends is stuck in the corresponding deck of driving disc, all is provided with the pressure mechanism of contract piece and steel band end being pressed to driven disc between the contract piece at steel band two ends and the fixed base of driving disc.Just, the end of steel band and driving disc being fixed or be stuck in deck also has the contract piece, is not fixing and is the deck that is stuck in driving disc, between the fixed base of contract piece and driving disc, also is provided with the pressure mechanism of contract piece and steel band end being pressed to driven disc.Like this, this end of the steel band of the utility model steel belt clutch also is the deck that is stuck in driving disc by the contract piece, one cover pressure mechanism is set between the contract piece of this end and the driving disc fixed base again, also just is equivalent between driving disc and driven disc, be provided with the opposite unidirectional delivery torque mechanism of two cover directions.The pressure mechanism of this contract piece of steel band has the clutch operation or the similar operating mechanism of pressure relief, or perhaps the pressure mechanism of steel band two ends contract piece must have at least the pressure mechanism of an end to have the clutch operation of pressure relief.Structures such as bar of having dialled by clutch operation control or shift fork like this, releasing spring equal pressure mechanism has been equivalent to remove the working state of a direction transmitting torque to the pressure of this end of steel band, and at this moment steel band is in the working state of one way engagement.When driving disc is lower than when needing driven disc to drive driving disc when the driven disc rotating speed also needs to mesh in other words, when perhaps using the vehicle of this clutch and gearbox to drive motor, as in the ice and snow sky and sliding road surface need brake with motor the time, can make the pressure mechanism of another contract piece of the controlled steel band state of resuming work by clutch operation etc.Be in long bonding state like this between driving disc and the driven disc, be equivalent to the bonding state of existing clutch.After making driving disc turn to certain speed, could drive driven disc, can have the centrifugal gravity piece at hydraulic mechanism, these pressure mechanisms of electromagnetic mechanism.

When pressure mechanism is hydraulic mechanism or electromagnetic pressure mechanism or leverage 225,221 or centrifugal gravity block mechanism, the driver part of hydraulic mechanism or electromagnetic pressure mechanism or centrifugal mechanism has return spring 220,8,48 as oil cylinder 68 or armature or lever 208,222 or centrifugal gravity piece 55,99,101.When return spring can guarantee that hydraulic pressure or electromagnetic pressure or centrifugal force drop to the elastic force that is equal to or less than return spring like this, just can make the pressure of pressure mechanism reduce to zero in time, make steel belt clutch be in separated state automatically.Specifically see embodiment.

Compared with the prior art the present invention when the needs driving disc drives driven disc, just makes the steel band lock ring at driven disc under the speed discrepancy effect, and combination automatically; When the driving disc rotating speed is lower than driven disc, when not needing driven disc to drive driving disc, under the speed discrepancy effect, make steel band lax again, driven disc separates automatically.Further can also realize the long clutch state of existing clutch, the control of bi-directional drive functional status.This steel belt clutch is contained in vehicles such as automobile, as the clutch between motor and the gearbox, needn't just can successfully shift gears under steam by stepping on clutch, when sliding, vehicle also needn't step on clutch for the abrasion and the minimizing idle work that reduce motor, driver operation is simplified greatly, significantly reduced driver's degree of fatigue; When further needing car to drive engine rotation, also can realize that under the situation of ice ways face motor is to vehicle braked by structure recovery bi-directional drive functions such as clutch operations.

Accompanying drawing has been represented the steel belt clutch structural representation that the present invention wherein uses between eight kinds of motor car engines and the gearbox.Wherein, Fig. 1 is an one way engagement steel belt clutch structural representation, Fig. 2 is an oppositely controlled steel belt clutch structural representation of one way engagement, Fig. 3 is the one way engagement steel belt clutch structural representation of band traction brake pad, Fig. 4 is the reverse controlled steel belt clutch structural representation of band traction brake pad one way engagement, Fig. 5 is the one way engagement steel belt clutch structural representation of the pincerlike traction of hydraulic pressure brake pad, Fig. 6 is the steel belt clutch structural representation of the centrifugal traction brake pad of round belt one way engagement in the driven disc, Fig. 7 is an oppositely controlled steel belt clutch structural representation of strap cam link lever press structure one way engagement, Fig. 8 is the steel belt clutch plan view between of a kind of engine flywheel and the gearbox, its left sectional view of Fig. 9.

Further specify technological scheme of the present invention and working procedure below in conjunction with these accompanying drawing examples.

Embodiment's 1 one way engagement steel belt clutch (see figure 1) has coaxial line relative driving disc 3 and driven disc 6, is looped around the steel band 10 of driven disc side face in addition; The end of steel band to two ends are connected with driving disc, and wherein an end and driving disc are hinged 9, deck 1 clamping of the other end 2 and driving disc.This other end of steel band and driving disc clamping and driven disc rubbing contact; Between the end and deck of steel band and driven disc rubbing contact, have the pressure mechanism pressure spring 7 of steel band being pressed to driven disc.The steel band inboard has one deck friction lining 4.Driving disc counterclockwise rotates along steel band from this end of steel band and driven disc rubbing contact, and steel band is just along with rotation.When the rotating speed of driving disc is desired to be higher than the rotating speed of driven disc, be equivalent to the relative driving disc counter-rotating of driven disc.At this moment, between steel band rubbing contact position and the driven disc frictional force is arranged, driven disc is just drawing steel band and is binding round tightly at driven disc, and then steel band passes to driven disc with rotational power, be with driven disc and driven disc axle 5 to rotate, be equivalent to existing clutch and be in bonding state.When the rotating speed of driving disc is desired to be lower than the rotating speed of driven disc, be equivalent to driven disc this end from rubbing contact, counterclockwise rotate to the other end along steel band relative to driving disc, steel band rubbing contact position in the driven disc effect makes steel band form relaxed state, transfer motion power not then between driving disc and the driven disc, be equivalent to existing clutch and be in separated state, just clutch is in and surmounts state.At this moment, just can carry out the gearbox shifting that the driven disc rear end connects.

Embodiment 2, one way engagement be controlled steel belt clutch (see figure 2) oppositely, and driven disc 14 and driven shaft 15 are arranged, and the driving disc 16 relative with the driven shaft coaxial line is looped around the steel band 21 of driven disc side face near a circle in addition; The two ends of steel band all are connected with the driving disc deck, and driving disc has two and is fixedly coupled deck 11,18, and the steel band two ends all have dop 12,20, are stuck in deck and are connected with driving disc; All have pressure spring 17,19 between steel band two ends 12,20 and the deck 11,18, driven disc is all pressed at the steel band two ends, the end of formation and driven disc rubbing contact has formed the pressure mechanism that is made of pressure spring in the end of steel band.Driving disc counterclockwise rotates along steel band from 12 ends of steel band and driven disc rubbing contact, and steel band is just along with rotation.When the rotating speed of driving disc is desired to be higher than the rotating speed of driven disc, be equivalent to the relative driving disc counter-rotating of driven disc.At this moment, between steel band rubbing contact position and the driven disc frictional force is arranged, driven disc is just drawing steel band and is binding round tightly at driven disc, and then steel band passes to driven disc with rotational power, is being with driven disc to rotate, and is equivalent to existing clutch and is in bonding state.Equally, driving disc rotates along the steel band clockwise direction from 20 ends of steel band and driven disc rubbing contact, and steel band is just along with rotation.When the revolution of driving disc is desired to be higher than the revolution of driven disc, be equivalent to the relative driving disc counter-rotating of driven disc.At this moment, between steel band rubbing contact position 20 and the driven disc frictional force is arranged, driven disc is just drawing steel band and is binding round tightly at driven disc, and then steel band passes to driven disc with rotational power, is being with driven disc to rotate, and is equivalent to existing clutch and is in bonding state.The two-way like this bonding state that all is in, the driven disc direction also can drive driving disc.When just the rotating speed of driven disc is higher than driving disc, being equivalent to driven disc rotates with respect to driving disc, because the rubbing contact position at steel band two end part all and frictional force arranged between the driven disc, no matter driven disc is with respect to the driving disc forward or reverse, driven disc all will draw steel band and bind round tightly at driven disc, then steel band passes to driving disc with the rotational power driven disc, is being with driving disc to rotate, and is equivalent to existing clutch and is in bonding state.Want to realize separated state, two springs that constitute pressure mechanism will at least one have clutch operation, as existing clutch, use clutch operation, remove the pressure of spring, just removed the pressure rubbing contact of this steel band rubbing contact end, be in the state of one way engagement driven disc.As using clutch operation to deck direction squeeze pressure spring 19 (or 17), the pressure spring of an end 20 (or 12) of pressure relief rubbing contact is pressed to the pressure of driven disc.When the revolution of driving disc is desired to be lower than the revolution of driven disc, be equivalent to driven disc from also being in an end 12 (or 20) of rubbing contact, along steel band to an end 20 of pressure relief rubbing contact counterclockwise (or 12 clockwise directions) rotate relative to driving disc, steel band rubbing contact position 12 (or 20) in the driven disc effect, make steel band form relaxed state, transfer motion power not then between driving disc and the driven disc, this direction is equivalent to existing clutch and is in separated state, and clutch is in and surmounts state (promptly being in embodiment 1).Pressure spring as the steel band two end part is provided with clutch operation simultaneously, removed the pressure of pressing to driven disc simultaneously by clutch operation separately, the two-way separated state that all is in of clutch then is equivalent to the separated state of existing general clutch (non-one way engagement clutch).The steel band inboard has friction lining 13.

The one way engagement steel belt clutch (see figure 3) of embodiment 3, band traction brake pad has coaxial line 30 relative driving disc 32 and driven disc 31, is looped around the steel band 29 of driven disc side face in addition; The two ends of steel band are connected with driving disc, and wherein an end and driving disc are hinged 28, also can be fixedly connected, and the other end 23 is hinged with traction brake pad 26,27.The traction brake pad has body 26 and friction layer 27 to constitute.The body of traction brake pad has bayonet socket, with deck 22 clampings of driving disc.Between the traction brake pad and deck 22 of steel band end, have the pressure mechanism pressure spring 25 of the traction brake pad of steel band being pressed to driven disc, formed traction brake pad and driven disc pressure rubbing contact.The steel band inboard has one deck friction lining 24.Driving disc is from this

end

23,26,27 of steel band and driven disc rubbing contact, and when steel band counterclockwise rotated, its working principle was identical with embodiment 1.Steel band is just along with driving disc rotates.Desire to be higher than the rotating speed of driven disc when the rotating speed of driving disc, when being equivalent to the counter-rotating of the relative driving disc of driven disc, between the traction brake pad of steel band and the driven disc frictional force is arranged, driven disc is just drawing steel band and is binding round tightly at driven disc, then steel band passes to driven disc with rotational power, be with driven disc and driven disc axle to rotate, be equivalent to existing clutch and be in bonding state.When the revolution of driving disc desires to be lower than the revolution of driven disc or driving disc counter-rotating, be equivalent to driven disc this end from the traction brake pad, rotate relative to driving disc to the other end along steel band, the traction brake pad that steel band in the driven disc effect makes steel band form relaxed state, transfer motion power not then between driving disc and the driven disc is equivalent to existing clutch and is in separated state.

The reverse controlled steel belt clutch (see figure 4) of one way engagement of embodiment 4, band traction brake pad has a driving disc 45 and a driven disc 44 of the relative coaxial line of 43 ends, is looped around the steel band 42 of driven disc side face near a circle in addition; Two ends 35, the 41 all articulated traction brake pads 34,40 of steel band, traction brake pad 34,40 inboards all have friction layer 38, and the bayonet socket of traction brake pad 34,40 is connected with

driving disc deck

33,39 respectively.All have pressure spring 37 respectively between the traction brake pad 34,40 at steel band two end part and the

deck

33,39, the traction brake pad 34,40 of steel band is pressed to driven disc, the end of formation and driven disc rubbing contact, the pressure mechanism that constitutes by pressure spring in the end of steel band.Driving disc is from the end 34 or 40 of steel band and driven disc rubbing contact, and during along steel band counter clockwise direction or clockwise direction rotation, steel band is just along with rotation.Its working principle is similar to embodiment 2.When the rotating speed of driving disc is desired to be higher than the rotating speed of driven disc, be equivalent to the relative driving disc counter-rotating of driven disc.At this moment, between steel band rubbing contact position and the driven disc frictional force is arranged, driven disc is just drawing steel band and is binding round tightly at driven disc, and then steel band passes to driven disc with rotational power, is being with driven disc to rotate, and is equivalent to existing clutch and is in bonding state.Equally, driven disc is from the traction brake pad 34 or 40 of steel band, counterclockwise or the clockwise direction rotation along steel band, when the revolution of driven disc is desired to be higher than the revolution of driving disc, the traction brake pad 40 of steel band or 34 and driven disc between frictional force is arranged, driven disc is just drawing steel band and is binding round tightly at driven disc, then steel band will be along with rotation, and pass through

deck

39 or 33 and give driving disc with transmission of power, be with driving disc to rotate, be equivalent to existing clutch and be in bonding state.The two-way like this bonding state that all is in, the driven disc direction also can drive driving disc.When just the rotating speed of driven disc is higher than driving disc, being equivalent to driven disc rotates with respect to driving disc, because the rubbing contact position at steel band two end part all and frictional force arranged between the driven disc, no matter driven disc is with respect to the driving disc forward or reverse, driven disc all will draw steel band and bind round tightly at driven disc, then steel band passes to driving disc with the rotational power driven disc, is being with driving disc to rotate, and is equivalent to existing clutch and is in bonding state.Want to realize separated state, two springs that constitute pressure mechanism will at least one have clutch operation, as existing clutch, use clutch operation, remove the pressure of spring, just removed the pressure rubbing contact of this steel band rubbing contact end driven disc.As with clutch operation to deck direction squeeze pressure spring 37, the pressure relief spring is pressed to the pressure of driven disc, has also just removed corresponding traction brake pad 34 or 40 and the pressure rubbing contact of driven disc.At this moment, when the revolution of driving disc is desired to be lower than the revolution of driven disc, be equivalent to the end 40 or 34 of driven disc from steel band, rotate relative to driving disc to the end 34 or 40 of pressure relief rubbing contact along steel band, the traction brake pad 34 or 40 that steel band in the driven disc effect makes steel band form relaxed state, transfer motion power not then between driving disc and the driven disc is equivalent to existing clutch and is in separated state.Removed the pressure of pressing to driven disc by clutch operation separately simultaneously as the pressure spring at steel band two end part, the two-way separated state that all is in of clutch then is equivalent to the separated state of existing general clutch.

The one way engagement steel belt clutch (see figure 5) of embodiment 5, the pincerlike traction of hydraulic pressure brake pad has relative driving disc 64 of diaxon 68,75 coaxial lines and driven disc 65,76, is looped around the steel band 78 of driven disc 76 side faces in addition.The two ends of steel band are connected with driving disc.Wherein, an end articulates by the hanging part 73 of hanging part 74 with driving disc, and the other end is connected with the traction brake pad 81 that is clamped in driven disc side 65.Traction brake pad and another are clamped in the brake pad 71 of driven disc another side, and traction brake pad 81 and brake pad 71 all are made of body and friction layer 72.The body of traction brake pad has mouth hanging, articulates with the sliding seat 70 of driving disc.The chute 69 of sliding seat and driving disc circumferentially is slidingly matched.This other end steel band end of steel band is connected with the relative fixed that forms slip between the driving disc by sliding seat 70 and traction brake pad 81.Between traction brake pad and the sliding seat, also have hydraulic pressure and divide oil cylinder (dividing cylinder or wheel cylinder or clutch release slave cylinder) 80, the piston external part that hydraulic pressure divides oil cylinder is pressed to the side of driven disc with the traction brake pad 81 of steel band, has formed the pressure rubbing contact of traction brake pad and driven disc side.Hydraulic pressure divides the power resources of oil cylinder in the centrifugal piston master cylinder (master cylinder or master cylinder) 68 that is arranged on driving disc, and the oil nozzle of centrifugal piston master cylinder 68 divides the oil nozzle 79 usefulness oil pipes of oil cylinder to be communicated with hydraulic pressure.The steel band inboard has one deck friction lining 77.Driving disc is from an end 81 of steel band, rotates along the steel band direction, and the steel band that articulates with driving disc is just along with rotation.After the rotating speed of driving disc improves, centrifugal piston master cylinder 68 is transmitted to hydraulic pressure with the pressure that produces and divides oil cylinder under action of centrifugal force, and hydraulic pressure divides the piston external part of oil cylinder to act on the traction brake pad, press to the side 65 of driven disc, cooperate another piece brake pad and driven disc to be in clamp position.At the driving disc rotation process, the pressure that hydraulic pressure divides oil cylinder always traction brake pad 81 to be produced to the driven disc side makes the traction brake pad keep contacting with the driven disc side friction like this.Desire to be higher than the rotating speed of driven disc when the rotating speed of driving disc, between the traction brake pad of steel band and the driven disc side frictional force is arranged, driven disc is just drawing steel band and is binding round tightly at driven disc, then steel band passes to driven disc with rotational power, and the rotation of driven disc axle, be equivalent to existing clutch and be in bonding state.Desire to be lower than the rotating speed of driven disc when the rotating speed of driving disc, be equivalent to driven disc this end from the traction brake pad, rotate counterclockwise to the relative driving disc of the other end along steel band, the traction brake pad that steel band in the driven disc effect makes steel band form relaxed state, transferring power not then between driving disc and the driven disc, this steel belt clutch is in and surmounts state, is equivalent to existing clutch and is in separated state.Can shift gears this moment be used between motor car engine and the gearbox as this clutch, just.If the rotating speed of driven shaft 75 and driven disc 76 descends zero the time when bringing to a halt (as), the rotating speed of driving disc also descends thereupon, but when the rotating speed of driving disc 64 drops to certain value, because the rotating speed of driving disc 64 descends when making the interior centrifugal force of centrifugal piston master cylinder be equal to or less than the elastic force of return spring in the cylinder, at this moment there is not oil pressure output, just be equivalent to remove pressure to traction brake pad 81, traction brake pad and driven disc side (flange) do not have the pressure rubbing contact, steel band and driven disc just form relaxed state, transferring power not then between principal and subordinate's Moving plate.

The one way engagement steel belt clutch (see figure 6) of embodiment 6, centrifugal interior circle traction brake pad has coaxial line relative driving disc 51 and driven disc 104, is looped around the steel band 61 of driven disc side face in addition.The steel band inboard has one deck friction lining 62.The two ends of steel band all have hanging part 46,52, and the hanging part 54,53 with driving disc articulates respectively.Wherein, an end 52 also hinged 63 has lever 50, and balance pivot sleeve pipe 47 is enclosed within the driven disc axle movingly, the other end of lever and traction brake pad 57 hinged 58.The traction brake pad 57 of arc is arranged on the driven disc inboard, and is relative with the inner headed face of driven disc.What the traction brake pad was relative with driven disc has worn friction layer 56.The traction brake pad back side has weight 55.Weight can become one with the traction brake pad.Weight is exactly the pressure mechanism of traction brake pad.Be connected with return spring 48 between the pin 59 of weight and the pin 49 of lever.Driving disc counterclockwise rotates along steel band from an end 52 of steel band, and the steel band that articulates with driving disc is just along with rotation.Steel band is being with lever and traction brake pad and weight to rotate again.Weight rotate to produce centrifugal force, and under the action of centrifugal force of weight, the traction brake pad is pressed to the driven disc inner headed face, and under the situation of rotating, keeping with driven disc in the state of circle rubbing contact.Desire to be higher than the rotating speed of driven disc when the rotating speed of driving disc, between the traction brake pad 57 of steel band and the driven disc inner headed face frictional force is arranged, fast and lever is drawing steel band and is binding round tightly at driven disc driven disc by traction friction, then steel band passes to driven disc with rotational power, and 60 rotations of driven disc axle, be equivalent to existing clutch and be in bonding state.When the rotating speed of driving disc is desired to be lower than the rotating speed of driven disc, be equivalent to a end 52 from steel band, counterclockwise rotate relative to driving disc to the other end 46 along steel band, the traction brake pad 57 of steel band in the driven disc effect, and by traction friction fast and lever leads the connecting end 63 that is pushing away steel band and makes steel band form relative and the driven disc relaxed state, transferring power not then between driving disc and the driven disc, this clutch is in and surmounts state, is equivalent to existing clutch and is in separated state.Be used between motor car engine and the gearbox as this clutch, just the gearshift that can manually keep off this moment.If the rotating speed of driven disc 104 descends zero the time when bringing to a halt (as), the rotating speed of driving disc also descends thereupon, but when the rotating speed of driving disc 51 drops to certain value, make the centrifugal force of centrifugal weight 55 be equal to or less than the elastic force of return spring 48, leave the driven disc inner headed face and be pulled the position, removed the pressure to traction brake pad 81, circle does not have the pressure rubbing contact in traction brake pad and the driven disc, steel band and driven disc just form relaxed state, transferring power not then between principal and subordinate's Moving plate.The other end 46 as this steel belt clutch also has traction brake pad and the pressure mechanism that a cover is similar to parts 63,50,58,57,55,56, just formed the situation that the steel band two end part all have pressure mechanism, the pin 59 of centrifugal 55 of the pressure mechanism of steel band one end 52 has clutch operation like this.The shift fork of clutch operation just can be stirred pin 59, and centrifugal and traction brake pad 57 circle in the driven disc are separated from, and does not form the pressure rubbing contact.So just reached control to pressure mechanism.

Embodiment 7, this is oppositely controlled steel belt clutch (see figure 7) of a kind of strap cam link lever press structure one way engagement.

Can use this steel belt clutch between of engine flywheel and gearbox, relative driving disc (flywheel) 83 and driven disc 96 are arranged, driving disc and driven disc and axle 100 are in same axis, coaxial fixing of driven disc and gearbox.Driving disc has fixed base 85,92.Be looped around the outer steel band 82 near a circle of driven disc in addition, the contract piece 86 of an end of steel band is stuck in the fixed base 85 of driving disc, and the contract piece 88 of the other end of steel band also is stuck in the fixed base 92 of driving disc, and steel band is along with driving disc rotates.The steel band inboard has one deck friction lining.Be provided with the pressure mechanism of contract piece and steel band end being pressed to driven disc between the contract piece 88 of the other end of steel band and the driving disc.Between the contract piece and driving disc that steel band one end has, also be provided with the pressure mechanism of contract piece and steel band end being pressed to driven disc.Pressure mechanism is the cam link pressure mechanism, mainly by the cam 87,89 that is rotationally connected with driving disc, and with the fixing continuous motion stem 97,103 of cam, centrifugal gravity piece 99,101 that is connected with continuous motion stem and extension spring 94 formations.Be connected with between the continuous motion stem pin 84,93 of two pressure mechanisms and keep return spring 8.The continuous motion stem 97 of steel band one end contract piece pressure mechanism is connected with centrifugal gravity piece 99 and is integral.The continuous motion stem of steel band the other end contract piece 103 pressure mechanisms is connected with driving disc by the extension spring 94 of connecting pin 93,95 and connection, and continuous motion stem is two section 103,101 that links by cardan axle 91, and hinge joint place is with control and overlaps 98.The hypomere of continuous motion stem has centrifugal 101.Sliding up and down the control cover by stirring pin 90, making two sections bars be in the state of fixedly connected state or hinge joint.Leave hinge joint place when controlling cover, two sections bars are in the hinge joint state, and extension spring 94 or centrifugal gravity piece 101 can only spur the hypomere bar and rotate relative to the epimere bar, can not produce pressure to contract piece and this end of steel band by continuous motion stem and cam, and suitable and this end does not have pressure mechanism.At this moment after driving disc rotates in the counterclockwise direction and reaches certain rotating speed, under centrifugal action, centrifugal gravity piece 99 outwards moves by driving continuous motion stem 97, make cam 87 press to contract piece 86, and make contract piece 86 and steel band end press to driven disc, have only this end pressure mechanism of steel band in running order, formed the clutch of unidirectional delivery moment of torsion.Like this, when the revolution of driving disc is desired to be higher than the revolution of driven disc, be equivalent to the relative driving disc counter-rotating of driven disc, driven disc steel band to the clockwise direction band and is bound round tightly at driven disc, is equivalent to existing clutch and is in bonding state.Driving disc can be by steel band to the driven disc transferring power.When the revolution of driving disc is lower than the revolution of driven disc, be equivalent to driven disc relative to driving disc from the steel band end that is provided with pressure mechanism along around steel band counterclockwise rotate to the steel band end that pressure mechanism is not set, because steel band end 86 and driven disc rubbing action, driven disc is being with (moving back) steel band to counter clockwise direction, loosening to (driven disc) with respect to oneself, transfer motion power not then between driving disc and the driven disc, at this moment this clutch is in and surmounts state.The automobile that uses such clutch is as when needs are shifted gears, as long as decontrol or lift the pedal (minimizing fuel delivery) of acceleration, engine revolution dropped to be lower than the revolution of one of gearbox, just can shift gears.After the gearshift, opening the throttle improves engine revolution again, and driving disc just binds round at driven disc by steel band again during a little more than one of gearbox and driven disc revolution tightly, and the driving disc of formation and driven disc bonding state are driving gearbox and vehicle.Same vehicle also needn't stepping on clutch when sliding, and motor just can not driven by vehicle and gearbox feedback, and the wearing and tearing of minimizing motor.

When control is overlapped 98 flip sleeves at cardan axle 91 places, make two sections bars be in the state of being rigidly connected, two sections bars of extension spring 94 stretchies rotate simultaneously, produce pressure by 89 pairs of contract pieces 88 of continuous motion stem 103 interlock cams and this end of steel band, and suitable and this end is provided with pressure mechanism again.At this moment after driving disc rotated, under centrifugal action, centrifugal gravity piece 99,101 drives continuous motion stem 97,103 respectively and cam 87,89 is pressed to contract piece 86,88 and steel band, made the end of steel band press to driven disc formation rubbing contact.Desire to be higher than driven disc when the revolution of driving disc, driven dribbling steel band and is bound round tightly at driven disc, and clutch is in bonding state.When the rotating speed of driving disc is lower than driven disc and since the steel band two end part all with the driven disc rubbing action, driven disc is being with (moving back) steel band with respect to oneself (driven disc) play slightly at an end of steel band in the opposite direction, it is motionless just to be stuck in fixed base.Because contract piece 88 and this end of steel band are also being pressed driven disc, are being with steel band 82 to bind round tightly at driven disc to counter clockwise direction again with same principle driven disc, still are equivalent to existing clutch and are in bonding state.Driven disc can make clutch always be in bonding state by steel band to the driving disc transferring power.Here it is, and driving disc is lower than the working state that the driven disc rotating speed also needs to mesh needs driven disc to drive driving disc in other words, when perhaps using the vehicle of this clutch and gearbox to drive motor, as in the ice and snow sky and when sliding road surface or vehicle lower long slope, the working state that need brake with motor.The slip of control cover is to overlap the clutch operation that has pressure relief by control to control, by structures such as clutch operation control turning lever or shift forks, stir control cover and slide, reach and remove or recover protruding 89 and take turns the pressure state of pressure mechanism this end of steel band.Be used between motor car engine and the gearbox as this clutch, just the gearshift that can manually keep off this moment.If the rotating speed of driven disc 104 descends zero the time when bringing to a halt (as), the rotating speed of driving disc also descends thereupon, but when the rotating speed of driving disc 51 drops to certain value, make the centrifugal force of centrifugal weight 99,101 be equal to or less than the elastic force of return spring, and be pulled the position, promptly cam 87,89 has been removed the pressure rubbing contact to pressure and 86,88 pairs of driven discs of steel band end contract piece of steel band end contract piece 86,88.Steel band and driven disc just form relaxed state, transferring power not then between principal and subordinate's Moving plate.This is to be equivalent to existing clutch to be in separated state, makes motor unlikely flame-out.

Embodiment 8, a kind of steel belt clutch (seeing Fig. 8,9) that is contained between of engine flywheel and the gearbox, relative flywheel driving disc 205 and driven disc 204 are arranged, flywheel driving disc and driven disc are in same axis, and driven disc is coaxial fixing with one 202 of gearbox.Driving disc has fixed base 214.Fixed base has bayonet socket with outer two the relative positions of driven disc, has constituted deck A, the B of driving disc.Be looped around the outer steel band 206 near a circle of driven disc in addition, the contract piece 213 of an end of steel band is stuck in the deck A of driving disc, and the contract piece 212 of the other end of steel band also is stuck in the deck B of driving disc, and steel band is along with driving disc rotates.The steel band inboard has one deck friction lining 207.Be provided with the pressure mechanism of contract piece and steel band end being pressed to driven disc between the contract piece 212 of the other end of steel band and the fixed base of driving disc.Between the contract piece that steel band one end has and the fixed base of driving disc, also be provided with the pressure mechanism of contract piece and steel band end being pressed to driven disc.The two end part of Here it is steel band all have the contract piece, and the contract piece at two ends is stuck in the corresponding deck of driving disc, between the contract piece at steel band two ends and the fixed base of driving disc, all are provided with the pressure mechanism of contract piece and steel band end being pressed to driven disc.Pressure mechanism is the cam press structure, mainly by the cam 210,211 that is rotationally connected with driving disc and fixed base, and with the fixing continuous motion stem 208,221 of cam, the centrifugal gravity piece of the generation pressure that is connected with continuous motion stem or extension spring formation.Have between the cam 211,210 of contract piece 212,213 and pressure mechanism and the fixing leaf spring 215,216 of contract piece.The continuous motion stem 208 of steel band one end contract piece pressure mechanism is connected with centrifugal gravity piece 201 by extension spring 218, and the centrifugal gravity piece is enclosed within the guide rod 219 that is connected with driving disc.Be connected with between the continuous motion stem of two pressure mechanisms and keep return spring 220.The continuous motion stem of steel band the other end contract piece 213 pressure mechanisms is connected with driving disc by extension spring 203, and continuous motion stem is the two sections bars 209,221 by cardan axle 222 hinge joints, and hinge joint place is with control cover 217.By the Sliding Control cover, make two sections bars be in the state of fixedly connected state or hinge joint.Leave hinge joint place when controlling cover, two sections bars are in the hinge joint state, and extension spring 203 can only spur the hypomere bar and rotate relative to the epimere bar, can not produce pressure to contract piece and this end of steel band by continuous motion stem and cam, and suitable and this end does not have pressure mechanism.At this moment after the flywheel driving disc rotates along the C direction, under centrifugal action, the centrifugal gravity piece drives continuous motion stem 208 by spring 218 and moves to the G direction, make cam 211 press to the leaf spring 215 of contract piece 212, and make contract piece 212 press to driven disc, have only this end pressure mechanism of steel band in running order, formed the clutch of unidirectional delivery moment of torsion.Like this, when the revolution of driving disc is desired to be higher than the revolution of driven disc, be equivalent to the relative driving disc counter-rotating of driven disc, driven disc steel band to E direction band and is bound round tightly at driven disc, is equivalent to existing clutch and is in bonding state.Driving disc can be by steel band to the driven disc transferring power.When the revolution of driving disc is lower than the revolution of driven disc, be equivalent to driven disc relative to driving disc from the steel band end that is provided with pressure mechanism along around steel band rotate to the steel band end D direction that pressure mechanism is not set, because steel band end and driven disc rubbing action, it is loosening to (driven disc) with respect to oneself that driven disc (moving back) steel band to the opposite direction band of E, transfer motion power not then between driving disc and the driven disc is equivalent to existing clutch and is in separated state.When using the automobile of such clutch such as needs to shift gears,, engine revolution is dropped to be lower than the revolution of one of gearbox, just can shift gears as long as decontrol or lift accelerator pedal (minimizing fuel delivery).After the gearshift, opening the throttle improves engine revolution again, and driving disc just binds round at driven disc by steel band again during a little more than one of gearbox and driven disc revolution tightly, and the driving disc of formation and driven disc bonding state are driving gearbox and vehicle.Same vehicle also needn't stepping on clutch when sliding, and motor just can not driven by vehicle and gearbox feedback, and the wearing and tearing of minimizing motor.If the control mechanism of similar clutch operation is set at continuous motion stem 208, just can stir continuous motion stem to G direction reverse motions, remove cam to the pressure of contract block plate spring 215 and steel band to the pressure of driven disc, can make clutch always be in separated state.

When control is overlapped 217 flip sleeves at cardan axle 222 places, make two sections bars be in the state of being rigidly connected, two sections bars of extension spring 203 stretchies rotate simultaneously, leaf spring 216 and this end of steel band by 210 pairs of contract pieces 213 of continuous motion stem 221 interlock cams produce pressure, and suitable and this end is provided with pressure mechanism again.At this moment after the flywheel driving disc rotated, under centrifugal action, centrifugal gravity piece 201 drives continuous motion stem 208 again and cam 211 is pressed to the leaf spring 215 of contract piece 212, and makes contract piece 212 and this end of steel band press to driven disc.Desire to be higher than driven disc when the revolution of driving disc, driven dribbling steel band and is bound round tightly at driven disc, and clutch is in bonding state.When the revolution of driving disc is lower than driven disc, being equivalent to driven disc rotates to the D direction relative to driving disc, since the steel band two end part all with the driven disc rubbing action, driven disc (moving back) steel band with respect to oneself (driven disc) play slightly at an end of steel band to the opposite direction band of E, and it is motionless just to be stuck in deck.Because contract piece 213 and this end of steel band are also being pressed driven disc, bind round tightly at driven disc to the steel band 206 that F direction band this end again with same principle driven disc, still be equivalent to existing clutch and be in bonding state.Driven disc can make clutch always be in bonding state by steel band to the driving disc transferring power.Here it is, and driving disc is lower than the working state that the driven disc rotating speed also needs to mesh needs driven disc to drive driving disc in other words, when perhaps using the vehicle of this clutch and gearbox to drive motor, as in the ice and snow sky and when sliding road surface or vehicle lower long slope, the working state that need brake with motor.The slip of control cover is to overlap the clutch operation that has pressure relief by control to control, by structures such as clutch operation control turning lever or shift forks, stir the control cover and slide, reach releasing or recover the pressure state of cam press structure this end of steel band.

Claims

1, a kind of steel belt clutch, driving disc 3 and driven disc 6 that coaxial line is arranged, it is characterized in that: the steel band 10,29 that is looped around the driven disc side face in addition, steel band two ends 2,9 are connected with driving disc, wherein the traction brake pad 26 of an end 2 of steel band or steel band one end connection is connected with the driving disc relative fixed, and with the driven disc rubbing contact, the traction brake pad that the end of steel band and driven disc rubbing contact or steel band end connect has the pressure mechanism 7,25 of steel band or traction brake pad being pressed to driven disc.

2, as the said steel belt clutch of claim 1, it is characterized in that: steel band two ends 12,20 are connected with the driving disc relative fixed, the traction brake pad 34,40 that the end of steel band or steel band end connect respectively with the driven disc rubbing contact, the traction brake pad that steel band is connected with the end or the steel band end of driven disc rubbing contact has the steel band end or draws the pressure mechanism 17,19,37 that brake pad is pressed to driven disc, and wherein the pressure mechanism of steel band one end has clutch operation at least.

3, as claim 1 or 2 said steel belt clutchs, it is characterized in that: pressure mechanism is hydraulic mechanism or electromagnetic pressure mechanism or leverage 225,221 or centrifugal gravity block mechanism, and the driver part oil cylinder 68 of hydraulic mechanism or electromagnetic pressure mechanism or centrifugal mechanism or armature or lever 208,222 or centrifugal gravity piece 55,99,101 have return spring 220,8,48.

4, as the said steel belt clutch of claim 1, it is characterized in that: an end of steel band and driving disc relative fixed or be stuck in the deck A of driving disc, the contract piece 12 of the steel band the other end is stuck in the deck B of driving disc, is provided with the pressure mechanism 11,8,18,1 of contract piece and steel band end being pressed to driven disc between the contract piece of this other end of steel band and the fixed base 14 of driving disc.

5, as the said steel belt clutch of claim 4, it is characterized in that: pressure mechanism has stirs by control turning lever or shift fork etc. that pressure mechanism is provided with or the clutch operation of pressure relief.

6, as the said steel belt clutch of claim 4, it is characterized in that: this end that steel band is stuck in deck also has contract piece 13, the contract piece also is stuck in the deck A of driving disc, also be provided with the pressure mechanism of this contract piece and this end of steel band being pressed to driven disc between the fixed base of contract piece and driving disc, its pressure mechanism has the clutch operation that pressure is removed, the two ends of steel band all have the contract piece, the contract piece at two ends is stuck in the corresponding deck of driving disc, all is provided with the pressure mechanism of contract piece and steel band end being pressed to driven disc between the contract piece at steel band two ends and the fixed base of driving disc.

7, as claim 4 or 5 or 6 said steel belt clutchs, it is characterized in that: the pressure mechanism of contract piece and steel band end being pressed to driven disc that is provided with between the contract piece of steel band end and the fixed base of driving disc is spring or resilient intermediate pressure means or electromagnetic pressure mechanism or hydraulic mechanism, perhaps cam rotation mechanism or the connecting rod toggle mechanism that the centrifugal gravity piece drives or elasticity drives.

8, as the said steel belt clutch of claim 7, it is characterized in that: have the centrifugal gravity piece at hydraulic mechanism or electromagnetic mechanism pressure mechanism.

9, as claim 1 or 2 or 4 or 5 or 6 said steel belt clutchs, it is characterized in that: be looped around the steel band of driven disc, more than the driven disc half-turn, three circles are below half, and the above steel band of a circle is that spiral surrounding is outside driven disc.

10, as claim 4 or 5 or 6 said steel belt clutchs, it is characterized in that: have leaf spring 15 between contract piece 12 and the pressure mechanism.