CN206958195U - A kind of steady drive stepless speed variator of lever rigidity high pulling torque - Google Patents

Abstract

A kind of steady drive stepless speed variator of lever rigidity high pulling torque, can not be compatible with rigid Large-torsion transmisson without smooth fluctuations transmission for buncher in the prior art the problem of, the utility model provides a kind of use and rotation is converted into linear reciprocating motion, then linear reciprocating motion is carried out to the buncher of speed change with the method for being then converted to rotate after the scaling of the ratio such as lever.It is main include the fixed mount for being used to set each part, will input be converted into the power input block of linear reciprocating motion, by linear reciprocating motion with the variable-speed unit for being then converted to rotate after the scaling of the ratio such as lever, power take-off unit in fixed position output will be rotated after speed change.The buncher can realize the rigid high torque transmission of non-model control, and power intake can be achieved and be driven to output end without smooth fluctuations, output end can be achieved and rotate by zero to the consecutive variations more than input rotating speed, reach the purpose of variable speed.

Description

A kind of steady drive stepless speed variator of lever rigidity high pulling torque

Technical field

It the utility model is related to the speed changer of mechanical transmission fields, and in particular to a kind of lever rigidity high pulling torque steadily passes Dynamic buncher.

Background technology

The speed changer of existing machinery transmission field is divided into step change transmission and buncher.Current buncher is big All it is the size that frictional resistance is limited by by frictional resistance transmission rather than positive drive so that such buncher Moment of torsion can not be very big, gearratio can not be very big, otherwise can skid；Also non-rely on that be designed as having part buncher is rubbed The positive drive of resistance is wiped, but transmission is unstable, and transmission has fluctuation.

Utility model content

In order to overcome, buncher can not be compatible with rigid Large-torsion transmisson without smooth fluctuations transmission in the prior art Problem, the utility model provide a kind of steady drive stepless speed variator of lever rigidity high pulling torque.

The utility model is that technical scheme is used by solving the above problems：A kind of lever rigidity high pulling torque steadily passes Dynamic buncher, it is a kind of using rotation is converted into linear reciprocating motion, then compares linear reciprocating motion lever etc. Scaling after be then converted to rotate method carry out speed change buncher.Including fixed mount, power input block, speed change list Member, power take-off unit.Wherein, power input block includes power input shaft, link chain mechanism in parallel, trapped orbit and slip Motion block is promoted mainly on trapped orbit；Variable-speed unit includes lever, the fluctuating orbit set parallel to trapped orbit, driven Track lifting and guiding device that fluctuating orbit is moved in parallel, be slidably mounted on fluctuating orbit from pushing block, be arranged on Two of fluctuating orbit both ends idle running right freewheel clutches in opposite direction and left freewheel clutch, around right freewheel clutch and Left freewheel clutch and be fixedly connected on from pushing block both sides form closed loop transmission belt I and be arranged on fluctuating orbit side Rotate integrating apparatus；Power take-off unit includes receiving the driving wheel that the output of variable-speed unit rotates, transmission belt III, guide wheel I, led Wheel II, driven pulley I, power output shaft and the driven pulley II being fixedly mounted on power output shaft, the rotation of driving wheel is through passing Dynamic band III is transferred to power output shaft output.

In the speed changer, fixed mount is used to set each part；The rotation that prime mover inputs is converted into by power input block Linear reciprocating motion, i.e.,：Rotation from prime mover drives link chain mechanism in parallel by power input shaft, and link chain mechanism in parallel is again Drive promotes mainly motion block and linear reciprocating motion is done on trapped orbit；Variable-speed unit is by the scaling of the ratio such as linear reciprocating motion lever After be then converted to rotate, i.e.,：Linear reciprocating motion promote mainly motion block drive lever around its branch spot wobble, lever drive again from Pushing block, the linear reciprocating motion parallel with motion block is promoted mainly is done on fluctuating orbit, and then fluctuating orbit is driven by transmission belt I The right freewheel clutch and left freewheel clutch at both ends, by from the linear reciprocating motion of pushing block be converted into right freewheel clutch and The rotation of left freewheel clutch, and the left mandrel progress for the right central shaft and left freewheel clutch for passing through right freewheel clutch is defeated Go out.Rotation integrating apparatus positioned at fluctuating orbit side, the rotation that right central shaft and left mandrel export is integrated into one and turned Move with output.

According to waiting than principle, from pushing block and the movement velocity ratio and lever swing fulcrum and from promotion of motion block are promoted mainly Block is equal with the ratio for the vertical range for promoting mainly both motion blocks motion place straight line, that is, is promoting mainly the certain feelings of motion block movement velocity It is directly proportional to the vertical range of lever swing fulcrum and fluctuating orbit from the speed of pushing block under condition.Lifted and be oriented to by track Device, it is continuous to change distance of the fluctuating orbit away from lever swing fulcrum, you can the continuous speed changed from pushing block, and then The continuous speed for changing output and rotating, reach the purpose of electrodeless variable-speed；Power take-off unit by variable-speed unit export with liter The rotation of track movement is dropped, the power output shaft output fixed in position.

Wherein, described fixed mount includes top plate and bottom plate arranged in parallel, the four corners position of top plate have respectively with Bottom plate several support bars connected vertically.Bearing block etc. is provided with fixed mount to be used to each part be installed.

Wherein, the chain-sprocket system and one that described link chain mechanism in parallel is distributed by two groups of identical speculars is had strong market potential Axle forms.Every group of chain-sprocket system include two sprocket wheels, one around two sprocket wheels form closed loop chain and one and wherein The drive gear of one sprocket coaxiality transmission.In link chain mechanism in parallel, two chains are located at both sides positioned at centre, two drive gears, and two Bar chain it is parallel and it is middle be provided with a gap, the two end portions of long pin shaft answer the bearing pin of chain link respectively as two chain one pair of which Connect two chains.Described power input shaft be provided be coaxial therewith transmission and with two sliding tooths in link chain mechanism in parallel Wheel engages two gears of setting respectively, and power input shaft drives two chains in link chain mechanism in parallel to do synchronization by gear Rotation.

Wherein, described motion block of promoting mainly is made up of main outer containment body and main core body, and main core body is pacified by the axle positioned at its both sides In the cavity of main outer containment body.Main core body is slidably mounted on lever, and main outer containment body is corresponding with guide rail by its both sides Carriage I is slidably mounted on trapped orbit.Main outer containment body passes through connecting rod and long pin shaft close to one side of link chain mechanism in parallel Be hinged, linear reciprocating motion can be done with the rotation of link chain mechanism in parallel on trapped orbit by making to promote mainly motion block.

Wherein, described trapped orbit is made up of two guide rails parallel to each other, and its both ends passes through positioned at fixed mount bottom The bearing of opposite sides is fixedly mounted on the bottom plate of fixed mount bottom setting, and parallel with bottom plate after installation.

Preferably, direction of the fixed mount plate outer side along trapped orbit is provided with extendable platform, power input shaft and chain in parallel Bar mechanism is arranged on extendable platform, and the direction of two sprocket wheel axial connecting lines and the guide rail of trapped orbit are put down in chain-sprocket system OK.

Wherein, described fluctuating orbit is made up of two guide rails parallel to each other, described track lifting and guiding device by Two be set on fixed mount opposite sides lowering or hoisting gears composition, often cover lowering or hoisting gear include two guide rods, a screw rod and A piece crossbeam, guide rod, screw rod with top plate and bottom plate vertical connection, are slidably connected with sliding block on guide rod, on screw rod Matching thread is connected with movable block, and the both ends of crossbeam are fixedly connected with the sliding block on two guide rods respectively, the centre of crossbeam with Movable block on screw rod is fixedly connected, and crossbeam is parallel with bottom plate.The both ends of fluctuating orbit are respectively fixedly connected with two sets of liftings On device, and the guide rail of fluctuating orbit and the guide rail parallel of trapped orbit after connection, can be right by the synchronous rotary of two screw rods Fluctuating orbit carries out parallel movement.

Wherein, it is described from pushing block by being formed from outer containment body and from core body, from core body pass through positioned at its both sides axle pacify Mounted in out of, outer containment body cavity.It is slidably mounted at from core body on lever, passes through its both sides and fluctuating orbit pair from outer containment body The carriage II answered is slidably mounted on fluctuating orbit, is fixedly connected from the both sides of outer containment body with the both ends of transmission belt I.

In the utility model, promote mainly motion block, from promote block structure it is similar, formed by internal and external parts, inside passes through bearing In cavity mounted externally, outside can in orbit slidably, and inside can be on lever slidably, and can opposite outer Swing.

Wherein, described lever is the straight bar of a length, and its top is provided with inverted U frame, and the both ends of inverted U frame rotate peace respectively Mounted in being located in two bearing blocks of fixed mount top plate lower surface.The lower end that motion block is arranged on lever is promoted mainly, is installed from pushing block It can be moved at the middle part of lever, and from pushing block with fluctuating orbit in the range of lever lower end to upper end, the U on lever top Type frame can make the position for being moved to lever swing fulcrum with fluctuating orbit from pushing block, now lever swing and from pushing block from Outer containment body is motionless, and then the freewheel clutch at fluctuating orbit both ends is not exported rotation.

Wherein, described rotation integrating apparatus, is arranged on the side of fluctuating orbit, including is fixedly mounted on left mandrel one The gear I at end, the counter gear set with the external toothing of gear I, the drive I being fixed together with counter gear, fixed installation Drive II in right central shaft one end, the transmission belt II for forming around drive I, drive II closed loop.Fluctuating orbit both ends Then the rotation direction of freewheel clutch central shaft output changes through counter gear on the contrary, left central axis is exported by gear I After changing direction, right central shaft is driven to through transmission belt II.In transmission process, the straight of adjustment gear I and counter gear can be passed through The diameter ratio of footpath ratio or drive I and drive II, and then left mandrel is adjusted to the gearratio of right central shaft.

Wherein, in described power take-off unit, driving wheel is fixedly mounted in the right side of the right freewheel clutch of fluctuating orbit In mandrel, driven pulley I is arranged on the lower surface of top plate, and driven pulley II is fixedly mounted on power output shaft, and power output shaft leads to The upper surface that bearing block is arranged on bottom plate is crossed, is located on fluctuating orbit on the side of driving wheel side, on the upper and lower both sides of driving wheel Guide wheel I, guide wheel II are respectively equipped with, transmission belt III is formed around driven pulley I, guide wheel I, driving wheel, guide wheel II, driven pulley II successively Closed loop.Wherein, part of the transmission belt III between driven pulley I, guide wheel I, transmission belt III are between guide wheel II, driven pulley II Part it is parallel with the moving direction of fluctuating orbit, can so ensure in the moving process of fluctuating orbit, the length of transmission belt III Degree is constant.

Space-time is rotated clockwise with respect to inner ring with left freewheel clutch outer shroud in the utility model and switchs to example；The utility model In exemplified by rotating integrating apparatus and the rotation that right central shaft and left mandrel export be integrated into right central shaft output.

In the utility model, the speed changer that is made up of one group of power input block, variable-speed unit and power take-off unit, if The rotation of prime mover input then when up and down both sides of the long pin shaft in sprocket wheel, promotes mainly motion block and does linear uniform motion at the uniform velocity, from Pushing block also does linear uniform motion therewith, finally exports up time in the right central shaft of the right freewheel clutch of fluctuating orbit right-hand member The uniform rotation in pin direction；When long pin shaft is moved on sprocket wheel, zero can be decelerated to and change direction by promoting mainly motion block, in now right Mandrel output velocity of rotation is reduced or exported without rotating.In whole process, the output of right central shaft is rotated as clockwise at the uniform velocity Rotate, output velocity of rotation reduces, the circulation of uniform rotation clockwise.Preferably, can multigroup power input block, variable-speed unit Speed changer is composed in parallel with power take-off unit, the uniform rotation for making to export between each group is connected with uniform rotation, makes speed changer most Continuous uniform rotation is exported eventually, reaches the purpose being steadily driven.

Further, to reduce speed changer volume, directly can be replaced with the main core body for promoting mainly motion block in link chain mechanism in parallel The chain of axis connection two of having strong market potential, the bearing pin of the axles of main core body both sides as two chain respective links.Even if chain directly drives master Core body and drive the mode of motion block promoted mainly without using connecting rod.In such cases, the extension that can cancel fixed mount plate outer side is put down Trapped orbit on platform, cancellation fixed mount bottom plate, power input shaft, link chain mechanism in parallel are arranged on to the bottom of fixed mount.This Kind of design, because main core body is respectively in the upper and lower sides of sprocket wheel, straight line where lever swing fulcrum moves away from main core body it is vertical away from From inconsistent, cause the speed from pushing block side-to-side movement inconsistent, cause fluctuating orbit both ends freewheel clutch central shaft defeated The velocity of rotation gone out is inconsistent, therefore also needs regulation to make left positioned at the gearratio of the rotation integrating apparatus of fluctuating orbit side The rotating speed that mandrel finally drives to right central shaft is consistent with right central shaft.

Further, can be only with the chain of link chain mechanism middle sprocket side in parallel（Such as upside）Motion block is promoted mainly in drive, in chain Take turns opposite side（Downside）It is corresponding only to promoting mainly motion block return, freewheel clutch only can be used in the corresponding one end of fluctuating orbit, The other end uses general drive, and cancels the rotation integrating apparatus positioned at fluctuating orbit side.

Beneficial effect：Transmission between each part of the utility model is rigidity, therefore, can do Large-torsion transmisson；Passing through will Uniform rotation is converted into linear reciprocating motion and then by linear reciprocating motion with being then converted at the uniform velocity turn after the scaling of the ratio such as lever Dynamic mode, ensure that transmission rotates at the uniform velocity without fluctuation, output, reached the purpose that rigid high pulling torque is steadily driven.It will can input The pulsation-free smooth transfer of rotating speed is held to output end, and output end rotating speed relative input end rotating speed, it can be achieved by zero to more than defeated Enter to hold the consecutive variations of rotating speed, reach the purpose of variable speed.

Brief description of the drawings

Fig. 1 is the schematic diagram of embodiment 1；

Fig. 2 is Fig. 1 front view；

Fig. 3 is the schematic diagram of embodiment 2；

Fig. 4 is Fig. 3 front view；

Fig. 5 is the schematic diagram of embodiment 3；

Fig. 6 is Fig. 5 right view；

Fig. 7 is the schematic diagram of embodiment 4；

Fig. 8 is Fig. 7 right view；

Fig. 9 is link chain mechanism schematic diagram in parallel in the utility model；

Figure 10 is Fig. 9 top view；

Figure 11 is the schematic diagram of main pushing block；

Figure 12 is the schematic diagram from pushing block；

Figure 13 is fluctuating orbit relevant portion schematic diagram in the utility model；

Figure 14 is Figure 13 top view；

Figure 15 is embodiment 1, the output velocity of rotation schematic diagram of embodiment 2.

Reference：1st, fixed mount, 101, top plate, 102, bottom plate, 103, support bar, 104, bearing block；2nd, power inputs Axle, 201, gear；3rd, link chain mechanism in parallel, 301, chain, 302, sprocket wheel, 303, drive gear, 304, long pin shaft；305th, even Bar；4th, trapped orbit, 5, promote mainly motion block, 501, main outer containment body, 502, main core body, 503, carriage I；6th, lever, 601, fall U Shape frame；7th, fluctuating orbit, 8, track lifting and guiding device, 801, guide rod, 802, sliding block, 803, crossbeam, 804, screw rod, 805, Movable block；9th, from pushing block, 901, from outer containment body, 902, from core body, 903, carriage II；10th, right freewheel clutch, 11, Left freewheel clutch, 12, right central shaft, 13, left mandrel, 14, transmission belt I, 15, rotate integrating apparatus, 1501, gear I, 1502nd, reverse gear, 1503, transmission belt II, 1504, drive I, 1505, drive II；16th, driving wheel, 17, transmission belt III, 18th, guide wheel I, 19, guide wheel II, 20, driven pulley I, 21, driven pulley II, 22, power output shaft.

Embodiment

With reference to specific embodiment, the utility model is described in further detail, so that those skilled in the art can be more Understanding the utility model well can be simultaneously practiced, but illustrated embodiment is not as to restriction of the present utility model.

Any feature disclosed in this specification (including any accessory claim, summary), unless specifically stated otherwise, By other equivalent or replaced with similar purpose alternative features.I.e., unless specifically stated otherwise, each feature is a series of etc. An example in effect or similar characteristics.

A kind of steady drive stepless speed variator of lever rigidity high pulling torque, the speed changer, which uses, is converted into rotation back and forth directly Line is moved, and linear reciprocating motion then is carried out into speed change with the method for being then converted to rotate after the scaling of the ratio such as lever, including solid Determine frame 1, power input block, variable-speed unit and power take-off unit.Wherein, the main composition of power input block is：Power Input shaft 2, link chain mechanism 3 in parallel, trapped orbit 4, it is slidably mounted on trapped orbit 4 and promotes mainly motion block 5；The master of variable-speed unit It is configured to：Lever 6, the fluctuating orbit 7 set parallel to trapped orbit 4, the track liter moved in parallel to fluctuating orbit 7 Guider 8 drops, be slidably mounted on fluctuating orbit 7 from pushing block 9, be arranged on two idle running sides at the both ends of fluctuating orbit 7 To opposite right freewheel clutch 10 and left freewheel clutch 11, around right freewheel clutch 10 and left freewheel clutch 11 and admittedly Surely be connected to from the both sides of pushing block 9 form closed loop transmission belt I 14, be arranged on the side of fluctuating orbit 7 with reverse gear 1502, Rotation integrating apparatus 15 based on transmission belt II 1503；The main composition of power take-off unit is：Receive the output of variable-speed unit Driving wheel 16, transmission belt III 17, guide wheel I 18, guide wheel II 19, driven pulley I 20, power output shaft 22 and the fixed installation of rotation Driven pulley II 21 on power output shaft 22, it is defeated that the rotation of driving wheel 16 through transmission belt III 17 is transferred to power output shaft 22 Go out.

Wherein, fixed mount 1 mainly includes top plate 101 and bottom plate 102 arranged in parallel, the four corners position of top plate 101 Have respectively and 102 connected vertically four support bars 103 of bottom plate.The grade of bearing block 104 is provided with fixed mount 1 to be used to each portion be installed Part.

In the speed changer, fixed mount 1 is used to set each part；The rotation that prime mover inputs is converted into by power input block Linear reciprocating motion, the rotation from prime mover drive link chain mechanism 3 in parallel by power input shaft 2, and link chain mechanism 3 in parallel is again Drive promotes mainly motion block 5 and does linear reciprocating motion on trapped orbit 4；Variable-speed unit is by the contracting of the ratio such as linear reciprocating motion lever It is then converted to rotate after putting, linear reciprocating motion promotes mainly motion block 5 and drives lever 6 to drive again around its branch spot wobble, lever 6 The linear reciprocating motion parallel with motion block 5 is promoted mainly is done from pushing block 9, on fluctuating orbit 7, and then is driven by transmission belt I 14 The right freewheel clutch 10 and left freewheel clutch 11 at the both ends of fluctuating orbit 7, it will be converted into from the linear reciprocating motion of pushing block 9 The rotation of right freewheel clutch 10 and left freewheel clutch 11, and surmounted by the right central shaft 12 and a left side of right freewheel clutch 10 The left mandrel 13 of clutch 11 exports, and rotates integrating apparatus 15 and the output of right central shaft 12 and left mandrel 13 is rotated into integration Rotate and export for one.

According to waiting than principle, from pushing block 9 and promote mainly motion block 5 movement velocity ratio and lever swing fulcrum with from pushing away Motion block 9 is equal with the ratio for the vertical range for promoting mainly both motion blocks 5 motion place straight line, and promoting mainly, the movement velocity of motion block 5 is certain In the case of, it is directly proportional to the vertical range of the swing pivot of lever 6 and fluctuating orbit 7 from the speed of pushing block 9；Pass through track liter Guider 8 drops, and it is continuous to change distance of the fluctuating orbit 7 away from the swing pivot of lever 6, you can continuous to change from pushing block 9 Speed, and then the continuous speed for changing output and rotating, reach the purpose of electrodeless variable-speed；Power take-off unit is by variable-speed unit The rotation moved with fluctuating orbit 7 of output, is exported in the power output shaft 22 that position is fixed.

Wherein, as shown in Figure 9, Figure 10, the chain sprocket system that link chain mechanism 3 in parallel is distributed by two groups of identical speculars System and a long pin shaft 304 form.Every group of chain-sprocket system includes two 302, one, sprocket wheels and forms closed loop around two sprocket wheels 302 Chain 301 and one and the wherein drive gear 303 of the coaxial transmission of a sprocket wheel 302.In link chain mechanism 3 in parallel, two chains 301 Positioned at centre, two drive gears 303 are located at both sides, two chains 301 it is parallel and it is middle be provided with a gap, the two of long pin shaft 304 The bearing pin of chain link is answered to connect two chains 301 respectively as the one pair of which of two chain 301 in end part.On described power input shaft 2 Provided with being coaxial therewith transmission and engage with two drive gears 303 in link chain mechanism 3 in parallel two gears of setting respectively 201, power input shaft 2 drives two chains 301 in link chain mechanism 3 in parallel to do synchronous rotation by gear 201.

Wherein, trapped orbit 4 is made up of two guide rails parallel to each other, and its both ends passes through relative positioned at the bottom of fixed mount 1 The bearing of both sides is fixedly mounted on the bottom plate 102 of fixed mount 1, and parallel with bottom plate 102 after installation.

Preferably, the outside of 1 bottom plate of fixed mount 102 is provided with extendable platform along the direction of trapped orbit 4, power input shaft 2 and Link chain mechanism 3 in parallel is arranged on extendable platform, and the direction of the axial connecting line of two sprocket wheel 302 and retaining rail in chain-sprocket system The guide rail parallel in road 4.

Wherein, as shown in Figure 1, shown in Figure 11, promote mainly motion block 5 to be made up of main outer containment body 501 and main core body 502, main core body 502 is logical The axle positioned at its both sides is crossed to be arranged in the cavity of main outer containment body 501.Main core body 502 is slidably mounted on lever 6, main periphery Body 501 is slidably mounted on trapped orbit 4 by its both sides carriage I 503 corresponding with guide rail.Main outer containment body 501 is leaned on One side of nearly link chain mechanism 3 in parallel is be hinged by connecting rod 305 and long pin shaft 304, and making to promote mainly motion block 5 can be with the rotation of chain 301 Linear reciprocating motion is done on trapped orbit 4.It is at the uniform velocity, when long pin shaft 304 is in the both sides up and down of sprocket wheel 302 that if input, which rotates, When, promote mainly motion block 5 and do linear uniform motion, when long pin shaft 304 is moved on sprocket wheel 302, promote mainly dynamic 5 pieces and be gradually decelerated to zero And change the direction of motion.Because of the mode that chain 301 promotes to the promotion for promoting mainly motion block 5 for chain middle bearing pin in parallel, so Exportable larger motive force.

Wherein, as shown in Figure 1, Figure 3, fluctuating orbit 7 is made up of two guide rails parallel to each other, track lifting and guiding device 8 lowering or hoisting gears that the opposite sides of fixed mount 1 is set on by two form, and often cover lowering or hoisting gear and include two guide rods 801, one Screw rod 804 and a crossbeam 803, guide rod 801, screw rod 804 with top plate 101 and the vertical connection of bottom plate 102, guide rod 801 On be slidably connected with sliding block 802, matching thread is connected with movable block 805 on screw rod 804, the both ends of crossbeam 803 respectively with The sliding block 802 of two guide rods 801 is fixedly connected, and the centre of crossbeam 803 is fixedly connected with the movable block 805 on screw rod 804, and Crossbeam 803 is parallel with bottom plate 102.The both ends of fluctuating orbit 7 are respectively fixedly connected with two sets of lowering or hoisting gears, and are lifted after connecting The guide rail of track 7 and the guide rail parallel of trapped orbit 4.By the synchronous rotary of two screw rods 804, fluctuating orbit 7 can be carried out Parallel movement.

Wherein, it is logical from core body 902 from pushing block 9 by being formed from outer containment body 901 and from core body 902 as shown in Fig. 1, Figure 12 The axle positioned at its both sides is crossed to be arranged on out of, outer containment body 901 cavity.It is slidably mounted at from core body 902 on lever 6, from periphery Body 901 is slidably mounted on fluctuating orbit 7 by its both sides carriage II 903 corresponding with the guide rail in fluctuating orbit 7, It is fixedly connected from the both sides of outer containment body 901 with the both ends of transmission belt I 14.

Wherein, lever 6 is the straight bar of a length, and its top is provided with inverted U frame 601, and the both ends of inverted U frame 601 rotate respectively In two bearing blocks 104 for being located at the lower surface of 1 top plate of fixed mount 101.The lower end that motion block 5 is arranged on lever 6 is promoted mainly, from Pushing block 9 is arranged on the middle part of lever 6, and can be moved from pushing block 9 with fluctuating orbit 7 in the range of the lower end of lever 6 to upper end Dynamic, the inverted U frame 601 on the top of lever 6 can make the position for being moved to the swing pivot of lever 6 with fluctuating orbit 7 from pushing block 9.This When lever 6 swing, it is and motionless from pushing block 6 from outer containment body 601, and then make the right freewheel clutch 10 at the both ends of fluctuating orbit 7 Rotation is not exported with left freewheel clutch 11.

Wherein, as shown in Figure 13, Figure 14, the side that integrating apparatus 15 is arranged on fluctuating orbit 7, its main composition are rotated For：It is fixedly mounted on the gear I 1501 of left one end of mandrel 13, and the counter gear 1502 of the external toothing of gear I 1501, and reversion Drive I 1504 that gear 1502 is fixed together, the drive II 1505 for being fixedly mounted on right one end of central shaft 12, around biography Driving wheel I 1504, drive II 1505 form the transmission belt II 1503 of closed loop.The He of right freewheel clutch 10 at the both ends of fluctuating orbit 7 The rotation direction that the right central shaft 12 of left freewheel clutch 11, left mandrel 13 export passes through tooth on the contrary, left mandrel 13 rotates I 1501 outputs are taken turns, then after counter gear 1502 changes direction, right central shaft 12 is driven to through transmission belt II 1503.Transmission During, the diameter ratio or drive I 1504 and drive II 1505 of adjustment gear I 1501 and counter gear 1502 can be passed through Diameter ratio, and then left mandrel 13 is adjusted to the gearratio of right central shaft 12.

Wherein, in variable-speed unit, lever 6 is swung with the reciprocating motion for promoting mainly motion block 5.Pendulum from pushing block 9 with lever 6 Move and do and promote mainly dynamic 5 pieces of similar linear reciprocating motions on fluctuating orbit 7.There is an elongated opening among transmission belt I 14, make Lever 6 can pass through from opening, lever 6 and transmission belt I 14 is independent of each other in motion process.From pushing block 9 in lever 6 When under drive to left movement, the right freewheel clutch 10 in the both ends of fluctuating orbit 7 and left freewheel clutch 11 are driven by transmission belt I 14 Outer shroud rotates clockwise, and now the right outer shroud of freewheel clutch 10 drives inner ring to rotate, and is exported clockwise by right central shaft 12 Rotation, and the outer shroud of left freewheel clutch 11 with respect to inner ring dally；When being moved right from pushing block 9, driven by transmission belt I 14 The right freewheel clutch 10 and the outer shroud of left freewheel clutch 11 at the both ends of fluctuating orbit 7 rotate counterclockwise, now right freewheel clutch 10 outer shrouds dally with respect to inner ring, and the outer shroud of left freewheel clutch 11 drives inner ring to rotate, and export the inverse time by left mandrel 13 Pin rotates, the rotation integrating apparatus 15 then through the side of fluctuating orbit 7, and it is clockwise defeated that change drives to right central shaft 12 backward Go out.Fluctuating orbit 7 and track lifting and guiding device 8 coordinate, it is ensured that from the motion of pushing block 9 are the motion with promoting mainly motion block 5 Parallel moves along a straight line, is adjustable from the motion of pushing block 9 place distance of the straight line away from lever swing fulcrum, and then adjusts from promotion The movement velocity of block 9, the final output velocity of rotation for changing power output shaft 22.

Wherein, as shown in Fig. 1, Fig. 3, Figure 13, Figure 14, in power take-off unit, driving wheel 16 is fixedly mounted on the right side and surmounted The right central shaft 12 of clutch 10 it is upper, driven pulley I 20 is arranged on the lower surface of top plate 101, and driven pulley II 21 is fixedly mounted on On power output shaft 22, power output shaft 22 is arranged on the upper surface of bottom plate 102 by bearing block 104, is located on fluctuating orbit 7 On the side of the side of driving wheel 16, be respectively equipped with guide wheel I 18, guide wheel II 19 on 16 upper and lower both sides of driving wheel, transmission belt III 17 according to It is secondary to form closed loop around driven pulley I 20, guide wheel I 18, driving wheel 16, guide wheel II 19, driven pulley II 21.Wherein, transmission belt III 17 Part, part of the transmission belt III 17 between guide wheel II 19, driven pulley II 21 between driven pulley I 20, guide wheel I 18 with The moving direction of fluctuating orbit 7 is parallel, can so ensure in the moving process of fluctuating orbit 7, and the length of transmission belt III 17 is Constant.

Described power input block, variable-speed unit and power take-off unit is at least one group, also can multigroup power input Unit, variable-speed unit and power take-off unit are in parallel.

In the utility model, input rotates（Rotated by input to illustrate exemplified by rotating clockwise at the uniform velocity）Inputted by power Axle 2 inputs, as shown in figure 9, power input shaft 2 passes through the drive gear in link chain mechanism 3 in parallel by gear 201 thereon 303 drive two chains 301 do it is synchronous rotate counterclockwise, and then drive long pin shaft 304 move；When long pin shaft 304 is in sprocket wheel 302 Upside when, it does linear uniform motion to the left, to left side sprocket wheel 302 on when, be gradually decelerated to zero and change direction to the right Motion, bearing pin 304 reach sprocket wheel 302 downside when, it does linear uniform motion to the right, to right side sprocket wheel 302 on when, gradually It is decelerated to zero and changes direction to left movement, reciprocation cycle.As shown in figure 1, long pin shaft 304 by connecting rod 305 drive promote mainly it is dynamic Block 5 does linear reciprocating motion on trapped orbit 4, promotes mainly the motion of motion block 5, is linear uniform motion at middle one section, two Side is gradually decelerated to zero and changes direction.Promote mainly motion block 5 drive lever 6 swing, lever 6 so drive from pushing block 9, lifting The similar linear reciprocating motion of motion block 5 is done and promoted mainly on track 7, i.e., is linear uniform motion at middle one section, it is gradual in both sides It is decelerated to zero and changes direction.Right freewheel clutch 10, left freewheel clutch 11 are driven from pushing block 9 by transmission belt I 14 Outer shroud rotates.When from pushing block 9 to left movement, right central shaft 12 is driven to export clockwise turn by right freewheel clutch 10 It is dynamic；When being moved right from pushing block 9, drive left mandrel 13 to export rotation counterclockwise by left freewheel clutch 11, enter And by rotating integrating apparatus 15, by this rotate counterclockwise change direction after in right 12 clockwise output of central shaft.Right center Axle 12 drives driving wheel 16 to rotate, and then by transmission belt III 17, drives the clockwise rotation of the final output of power output shaft 22, It is as shown in figure 15 that it exports the speed schematic diagram rotated.By track lifting and guiding device 8, it is continuous change fluctuating orbit 7 with The distance of the swing pivot of lever 6, you can the continuous speed changed from pushing block 9, and then change the rotation that central shaft 12 exports Speed, the speed of power output shaft 22 is continuously changed, reach the purpose of variable speed.

Embodiment 1

A kind of steady drive stepless speed variator of lever rigidity high pulling torque, the buncher of the embodiment is band link-type Structure, as shown in Figure 1 and Figure 2, the buncher includes fixed mount 1 and the power being each provided on fixed mount 1 to its concrete structure Input block, variable-speed unit and power take-off unit, power input block, variable-speed unit and power take-off unit are one group, The concrete structure of each part is with reference to above-mentioned setting.In the buncher, power input shaft 2 and link chain mechanism in parallel 3 are located at admittedly Determine on the extendable platform in the outside of bottom plate 102 of frame 1, link chain mechanism 3 in parallel is by connecting rod 305 and is slidably mounted on trapped orbit 4 On motion block 5 of promoting mainly connect.

Embodiment 2

A kind of steady drive stepless speed variator of lever rigidity high pulling torque, the embodiment make to reduce the volume of speed changer With without link rod structure, as shown in Figure 3, Figure 4, the buncher includes fixed mount 1 and is each provided at fixation its concrete structure Power input block, variable-speed unit and power take-off unit on frame 1, power input block, variable-speed unit and power output list Member is one group, and the concrete structure of each part is with reference to above-mentioned setting.In the buncher, eliminate outside fixed mount bottom plate 102 The extendable platform of side, cancel trapped orbit 4 on fixed mount bottom plate 102, power input shaft 2, link chain mechanism in parallel 3 are arranged on On the bottom plate 102 of fixed mount 1, directly the long pin shaft 304 in link chain mechanism 3 in parallel is replaced to connect with the main core body 502 for promoting mainly motion block 5 Connect two chains 301, the bearing pin of the axles of the both sides of main core body 502 as the respective link of two chain 301.Even if chain 301 directly drives Main core body 502 so drive lever 6 and without using connecting rod 305 drive promote mainly motion block 5 so that drive lever 6 mode.Such a feelings Under condition, because main core body 502 is respectively in the upper and lower sides of sprocket wheel 302, straight line where the swing pivot of lever 6 is moved away from main core body 502 Vertical range it is inconsistent, cause the speed from the side-to-side movement of pushing block 9 inconsistent, cause the both ends overdrive clutch of fluctuating orbit 7 The velocity of rotation that device central shaft 12,13 exports is inconsistent, therefore also needs regulation positioned at the rotation integrating apparatus of the side of fluctuating orbit 7 15 gearratio, make left mandrel 13 finally drive to right central shaft 12 rotating speed it is consistent with right central shaft 12.

Embodiment 3

A kind of steady drive stepless speed variator of lever rigidity high pulling torque, the embodiment are two groups of parallel connection shapes of embodiment 2 Formula, its concrete structure is as shown in Figure 5, Figure 6.In the case of two groups of parallel connections, power input block, variable-speed unit are two groups, And in two groups of variable-speed units, one group of track lifting and guiding device 8 is shared, two right central shafts 12 can merge into a right center Axle, two left mandrels 13 can with merge into a left mandrel.Accordingly, two groups of rotation integrating apparatus 15 can only retain one Group, two groups of power take-off units can only retain one group.In the embodiment, continuously rotated to export without smooth fluctuations, need parallel connection In link chain mechanism 3, the distance between axles of sprocket wheel 302 is more than the 1/2 of its girth, and position of two main core bodies 502 on two groups of chains 301 Be staggered 1/4 chain length.

Embodiment 4

A kind of steady drive stepless speed variator of lever rigidity high pulling torque, the embodiment are three groups of parallel connection shapes of embodiment 2 Formula, composed in parallel by fixed mount 1 and three groups of power input blocks, variable-speed unit, power take-off units, its concrete structure such as Fig. 7, Shown in Fig. 8, in the embodiment, only with the chain-driving main core body 502 positioned at the top of sprocket wheel 302 and then lever 6, final band are driven The dynamic right output of freewheel clutch 10 rotates, and the chain of the bottom of sprocket wheel 302 is only to the return of lever 6.Accordingly, the left end of fluctuating orbit 7 Left freewheel clutch 11 can be replaced with general drive.In such cases, the left mandrel 13 of the left end of fluctuating orbit 7 does not export Rotate, can cancel and rotate integrating apparatus 15.With embodiment 3, track lifting and guiding device 8 is only one group, three groups of variable-speed units pair The three right central shafts 12 answered can merge into one, and three groups of power take-off units can only retain 1 group.In the embodiment, for output Continuously rotate, needed in link chain mechanism 3 in parallel without smooth fluctuations, 1/3 of distance between axles more than chain girth of sprocket wheel 302, three Be staggeredly located 1/3 chain length of the main core body 502 on three groups of chains 301.

Be basic embodiment of the present utility model above, can more than on the basis of further improved, optimized and limited It is fixed：

Such as, the chain 301 in chain-sprocket system 3, sprocket wheel 302 can be replaced with timing belt, synchronizing wheel；

And for example, can be changed to surmount by rack drives by way of transmission belt I 14 drives freewheel clutch from pushing block 9 Clutch；

And for example, track can be increased around the path along chain 301, by long pin shaft 304（Or from core body 502）Both ends be limited in In track, make long pin shaft 304（Or from core body 502）Move in orbit, to offset long pin shaft 304 in transmission process（Or from core Body 502）To the lateral force of chain 301；

And for example, in the case where only promoting mainly motion block 5 by the drive of connecting rod 305 with the side of chain 301, trapped orbit 4 can be made Height and drive promote mainly motion block 5 side chain 301 it is highly consistent, to avoid promoting mainly the laterally pulling to chain 301 of motion block 5 Power；

And for example, promote mainly motion block 5, the side of the swing pivot of lever 6 can be located at from pushing block 9, can also be located at and swing branch The both sides of point；

And for example, the two end portions of long pin shaft 304 can be designed as to the form of twin shaft, the spacing of two axles is the section of chain 301 Away from then making this two axle to reduce the abrasion of single bearing pin as the bearing pin of wherein two pin-and-holes of chain link of chain 301.

And for example, the slide construction in the utility model, as sliding block slides on the guide bar, main outer containment body, from outer containment body Carriage slided on guide rail, main core body, slided on lever from core body, can be guide tracked slide construction, or Guide rod type slide construction；

And for example, discounting for the steady no fluctuation of variator, chain in parallel directly can be replaced with crank mechanism Mechanism 3 drives lever 6 to swing.

From the above, it can be seen that the transmission between each part of the utility model is rigidity transmission, therefore big torsion can be done Square is driven.It is motionless from pushing block 9 when the swing pivot of fluctuating orbit 7 and lever 6 is when on same straight line in speed-change process, Output end velocity of rotation is zero.When fluctuating orbit 7, which is gradually reduced, to be made from swing pivot of the pushing block 9 away from lever 6, from promotion The speed of block 9 gradually increases, and output end velocity of rotation also gradually increases, most fast to velocity of rotation is exported during lower limit.In theory may be used Size by adjusting right freewheel clutch 10, left freewheel clutch 11 and its follow-up drive makes the rotating speed of transmission output Relative input end is infinitely fast.

Technical scheme and embodiment and non-limiting cited by the utility model, with the skill cited by the utility model Art scheme and embodiment are equal or effect same approach is all in the range of the utility model is protected.

Claims (10)

1. A kind of 1. steady drive stepless speed variator of lever rigidity high pulling torque, it is characterised in that：The speed changer, which uses, to be rotated Linear reciprocating motion is turned to, is then become linear reciprocating motion with the method for being then converted to rotate after the scaling of the ratio such as lever Speed, including fixed mount（1）, power input block, variable-speed unit and power take-off unit,

   Wherein, power input block includes power input shaft（2）, link chain mechanism in parallel（3）, trapped orbit（4）And slide peace Mounted in trapped orbit（4）On promote mainly motion block（5）；

   Variable-speed unit includes lever（6）, parallel to trapped orbit（4）The fluctuating orbit of setting（7）, drive fluctuating orbit（7）Enter The track lifting and guiding device that row moves in parallel（8）, be slidably mounted on fluctuating orbit（7）On from pushing block（9）, be arranged on liter Track drops（7）The right freewheel clutch of two idle running at both ends in the opposite direction（10）With left freewheel clutch（11）, it is super around the right side More clutch（10）With left freewheel clutch（11）And it is fixedly connected on from pushing block（9）Both sides form the transmission belt I of closed loop （14）And it is arranged on fluctuating orbit（7）The rotation integrating apparatus of side（15）；

   Power take-off unit includes receiving the driving wheel that the output of variable-speed unit rotates（16）, transmission belt III（17）, guide wheel I （18）, guide wheel II（19）, driven pulley I（20）, power output shaft（22）And it is fixedly mounted on power output shaft（22）On from Driving wheel II（21）, driving wheel（16）Rotation through transmission belt III（17）It is transferred to power output shaft（22）Output；

   In the speed changer, fixed mount（1）For setting each part；The rotation that prime mover inputs is converted into past by power input block Linear motion, the rotation from prime mover pass through power input shaft（2）Drive link chain mechanism in parallel（3）, link chain mechanism in parallel （3）Drive again and promote mainly motion block（5）In trapped orbit（4）On do linear reciprocating motion；Variable-speed unit is by linear reciprocating motion thick stick It is then converted to rotate after the scaling of the ratio such as bar, linear reciprocating motion promotes mainly motion block（5）Drive lever（6）Put around its fulcrum It is dynamic, lever（6）Drive again from pushing block（9）, in fluctuating orbit（7）On do and promote mainly motion block（5）Parallel reciprocating linear fortune It is dynamic, and then pass through transmission belt I（14）Drive fluctuating orbit（7）The right freewheel clutch at both ends（10）With left freewheel clutch （11）, will be from pushing block（9）Linear reciprocating motion be converted into right freewheel clutch（10）With left freewheel clutch（11）Turn It is dynamic, and pass through right freewheel clutch（10）Right central shaft（12）With left freewheel clutch（11）Left mandrel（13）Output, Rotate integrating apparatus（15）By right central shaft（12）With left mandrel（13）Output rotate be integrated into one rotate and export；

   According to waiting than principle, from pushing block（9）With promote mainly motion block（5）Movement velocity ratio and lever swing fulcrum with from pushing away Motion block（9）With promote mainly motion block（5）The ratio of the vertical range of straight line is equal where both motions, is promoting mainly motion block（5）Motion speed In the case that degree is certain, from pushing block（9）Speed and lever（6）Swing pivot and fluctuating orbit（7）Vertical range into just Than；Pass through track lifting and guiding device（8）, continuously change fluctuating orbit（7）Away from lever（6）The distance of swing pivot, you can It is continuous to change from pushing block（9）Speed, and then the continuous speed for changing output and rotating, reach the purpose of electrodeless variable-speed； Power take-off unit by variable-speed unit export with fluctuating orbit（7）Mobile rotation, in the power output shaft that position is fixed （22）Output.
2. A kind of 2. steady drive stepless speed variator of lever rigidity high pulling torque according to claim 1, it is characterised in that：Institute The link chain mechanism in parallel stated（3）By the chain-sprocket system and a long pin shaft of two groups of identical specular distributions（304）Composition； Every group of chain-sprocket system includes two sprocket wheels（302）, one bypass two sprocket wheels（302）Form the chain of closed loop（301）And one An individual and wherein sprocket wheel（302）The drive gear of coaxial transmission（303）；Link chain mechanism in parallel（3）In, two chains（301）It is located at Centre, two drive gears（303）Positioned at both sides, two chains（301）It is parallel and middle be provided with a gap, long pin shaft（304）'s Two end portions are respectively as two chains（301）One pair of which answers the bearing pin of chain link to connect two chains（301）；Described power input Axle（2）Be provided be coaxial therewith transmission and with link chain mechanism in parallel（3）In two drive gears（303）Engagement is set respectively Two gears（201）, power input shaft（2）Pass through gear（201）Drive link chain mechanism in parallel（3）In two chains （301）Do synchronous rotation.
3. A kind of 3. steady drive stepless speed variator of lever rigidity high pulling torque according to claim 1, it is characterised in that：Institute That states promotes mainly motion block（5）By main outer containment body（501）And main core body（502）Composition, main core body（502）Pass through the axle positioned at its both sides Installed in main outer containment body（501）Cavity in, main core body（502）It is slidably mounted at lever（6）On, main outer containment body（501）It is logical Cross the carriage I of its both sides（503）It is slidably mounted on trapped orbit（4）On, main outer containment body（501）Close to link chain mechanism in parallel （3）One side pass through connecting rod（305）With long pin shaft（304）It is be hinged, make to promote mainly motion block（5）Can be with link chain mechanism in parallel（3）Turn It is dynamic, in trapped orbit（4）On do linear reciprocating motion.
4. 4. a kind of steady drive stepless speed variator of lever rigidity high pulling torque according to claim 1 or 3, its feature exist In：Described trapped orbit（4）It is made up of two guide rails parallel to each other, its both ends passes through positioned at fixed mount（1）Bottom is relative The bearing of both sides is fixedly mounted on fixed mount（1）The bottom plate that bottom is set（102）On, and install after with bottom plate（102）It is parallel.
5. A kind of 5. steady drive stepless speed variator of lever rigidity high pulling torque according to claim 4, it is characterised in that：Institute The fluctuating orbit stated（7）It is made up of two guide rails parallel to each other, described track lifting and guiding device（8）It is set on by two Fixed mount（1）The lowering or hoisting gear composition of opposite sides, often cover lowering or hoisting gear and include two guide rods（801）, a screw rod（804） An and crossbeam（803）, guide rod（801）, screw rod（804）With forming fixed mount（1）Top plate（101）And bottom plate（102） Vertical connection, guide rod（801）On be slidably connected with sliding block（802）, screw rod（804）Upper matching thread is connected with movable block （805）, crossbeam（803）Both ends respectively with two guide rods（801）On sliding block（802）It is fixedly connected, crossbeam（803）In Between and screw rod（804）On movable block（805）It is fixedly connected, and crossbeam（803）With bottom plate（102）It is parallel；Fluctuating orbit（7）'s Both ends are respectively fixedly connected with two sets of lowering or hoisting gears, and fluctuating orbit after connection（7）Guide rail and trapped orbit（4）Guide rail It is parallel, pass through two screw rods（804）Synchronous rotary, can be to fluctuating orbit（7）Carry out parallel movement.
6. A kind of 6. steady drive stepless speed variator of lever rigidity high pulling torque according to claim 1, it is characterised in that：Institute State from pushing block（9）By from outer containment body（901）With from core body（902）Composition, from core body（902）Pass through the axle positioned at its both sides Installed in from outer containment body（901）Cavity in, from core body（902）It is slidably mounted at lever（6）On, from outer containment body（901）It is logical Cross its both sides and fluctuating orbit（7）Corresponding carriage II（903）It is slidably mounted on fluctuating orbit（7）On.
7. A kind of 7. steady drive stepless speed variator of lever rigidity high pulling torque according to claim 1, it is characterised in that：Institute The lever stated（6）For the straight bar of a length, its top is provided with inverted U frame（601）, inverted U frame（601）Both ends be rotatablely installed respectively It is being located at fixed mount（1）Two bearing blocks of upper end（104）In, promote mainly motion block（5）Installed in lever（6）Lower end, from promotion Block（9）Installed in lever（6）Middle part, and from pushing block（9）Can be with fluctuating orbit（7）In lever（6）The model of lower end to upper end Enclose interior movement, lever（6）The inverted U frame on top（601）It can make from pushing block（9）With fluctuating orbit（7）It is moved to lever（6）Pendulum The position of activity supporting point.
8. A kind of 8. steady drive stepless speed variator of lever rigidity high pulling torque according to claim 1, it is characterised in that：Institute The rotation integrating apparatus stated（15）Including being fixedly mounted on left mandrel（13）The gear I of one end（1501）And gear I（1501） The counter gear that external toothing is set（1502）With counter gear（1502）The drive I being fixed together（1504）, be fixedly mounted In right central shaft（12）The drive II of one end（1505）, around drive I（1504）With drive II（1505）Form closed loop Transmission belt II（1503）, left mandrel（13）Rotation passes through gear I（1501）Output, then through counter gear（1502）Change Behind direction, through transmission belt II（1503）Drive to right central shaft（12）.
9. A kind of 9. steady drive stepless speed variator of lever rigidity high pulling torque according to claim 1, it is characterised in that：Institute In the power take-off unit stated, driving wheel（16）It is fixedly mounted on right central shaft（12）On, driven pulley I（20）It is solid installed in forming Determine frame（1）Top plate（101）Lower surface, driven pulley II（21）It is fixedly mounted on power output shaft（22）On, power output shaft （22）Pass through bearing block（104）Installed in composition fixed mount（1）Bottom plate（102）Upper surface, fluctuating orbit（7）It is upper to be located at master Driving wheel（16）On the side of side, in driving wheel（16）Upper and lower both sides are respectively equipped with guide wheel I（18）, guide wheel II（19）, transmission belt Ⅲ（17）Driven pulley I is bypassed successively（20）, guide wheel I（18）, driving wheel（16）, guide wheel II（19）With driven pulley II（21）Composition is closed Ring；Wherein, transmission belt III（17）Positioned at driven pulley I（20）, guide wheel I（18）Between part, transmission belt III（17）Positioned at guide wheel Ⅱ（19）, driven pulley II（21）Between part and fluctuating orbit（7）Moving direction it is parallel.
10. A kind of 10. steady drive stepless speed variator of lever rigidity high pulling torque according to claim 1, it is characterised in that： Described power input block, variable-speed unit and power take-off unit is at least one group, also can multigroup power input block, speed change Unit and power take-off unit are in parallel.