CN105840755B - A kind of frictional infinitely variable speed device of ring cloth bipyramid platform - Google Patents
A kind of frictional infinitely variable speed device of ring cloth bipyramid platform Download PDFInfo
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- CN105840755B CN105840755B CN201610215527.5A CN201610215527A CN105840755B CN 105840755 B CN105840755 B CN 105840755B CN 201610215527 A CN201610215527 A CN 201610215527A CN 105840755 B CN105840755 B CN 105840755B
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- frustum
- clutch
- frictional disk
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- speed change
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/021—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings toothed gearing combined with continuous variable friction gearing
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of ring cloth bipyramid platform frictional variable speed device, belong to technical field of mechanical transmission, including casing, input shaft and output shaft, input shaft and output shaft diameter parallel, input shaft one end is provided with the frictional disk of taper type structure, frictional disk slides in the presence of fluid power pusher along input shaft, one end of output shaft is provided with bevel gear wheel, its middle friction tray and bevel gear wheel are located at box house, driven shaft is additionally provided with the side wall of casing, the axis of driven shaft is vertical with input shaft, bevel pinion is fixed with driven shaft, frustum is arranged with driven shaft, described frustum slides along driven shaft under the action of the spring, the surface of frictional disk and frustum is slidably matched, engaged between bevel gear wheel and bevel pinion.Contacting section radius of the invention by continuously changing frictional disk and ring cloth friction frustum, the smoothly variable speed in larger slewing range is realized, stable drive, high torque can be transmitted, suitable on high-power engine.
Description
Technical field
The invention belongs to technical field of mechanical transmission, and in particular to a kind of frictional stepless automatic transmission dress of ring cloth bipyramid platform
Put.
Background technology
The stepless transmission that requirement of the mechanical industry to power transmission gradually tends to be steady, buncher turn into focus.Become
The design of fast device has to consider transmission efficiency, reduces transmission series as far as possible on drive mechanism, while its structure is tried one's best
Design is simple, is easy to repair.
Traditional buncher CVT is simple and compact for structure, transmission efficiency, but when transmitting high torque, metal
Band easily skids, and can be used only in low-powered engine, requires in addition that its parts accuracy of manufacture height, considerably increases and be manufactured into
This, CVT fault diagnosis is difficult, and maintenance difficulty is big.The device of variable speed is realized with fluid power mode（Such as fluid torque-converter, liquid
Couple clutch etc.）, stable drive, but its is complicated, and maintenance difficulty is big, and transmission efficiency is low.Some new variable speed dresses
Put and arise at the historic moment, such as Patent No. CN101550995B design, but the parts of the design are fabricating and installed cloth
It is extremely harsh to put requirement, maintenance difficulty is big, relative complex in structure；Patent CN102401100A and patent
Chain conveyer and V belt translation are utilized respectively in CN103603934A design, structure is not compact；For CN102401100A and
CN103016650B design inner body structure is more complicated.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of frictional infinitely variable speed device of ring cloth bipyramid platform, the dress
Put the axial location by changing clutch frustum, change thrust of the clutch frustum to speed change frustum, realize moment of torsion transmission or
Do not transmit；By continuously changing the contacting section radius of frictional disk and ring cloth speed change frustum, realize and put down in larger slewing range
Quietly variable speed, and ensure frictional disk and ring cloth frustum stress balance, avoid producing unbalance stress and influenceing bevel gear
Coordinate, total stable drive, realize clutch and the integration of speed change, fluid drive, high torque can be transmitted.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of ring cloth bipyramid platform is frictionally stepless
Automatic transimission, it is characterised in that including casing, input shaft and output shaft, described input shaft and output are provided with casing
Axle diameter parallel, input shaft one end are provided with the frictional disk of taper type structure, and speed change of the frictional disk on fluid power pusher pushes away post work
To be slided with lower along input shaft, one end of output shaft is provided with bevel gear wheel, and its middle friction tray and bevel gear wheel are located at box house,
Driven shaft is additionally provided with the side wall of casing, the axis of driven shaft is vertical with input shaft, and driven shaft is provided with two, two driven shafts
Axis collinear and it is oppositely arranged, driven shaft is fixedly arranged in the middle of bevel pinion, and driven shaft free end is arranged with speed change frustum and clutch
Frustum, clutch of the clutch frustum on fluid power pusher pushes away can be axially moved under post effect on driven shaft, and spring housing is located at
Driven shaft, the both ends of spring are supported between bevel pinion and clutch frustum, and spring is in compressive state, in spring power
Under effect, the speed change frustum surfaces of two driven shaft ends and frictional disk intimate surface contact, and be slidably matched, bevel gear wheel and
Engaged between bevel pinion, while the axis co-planar of the axis of two driven shafts and input shaft.
Clutch frustum is arranged on driven shaft by special ball sliding bush in the present invention, can realize clutch frustum simultaneously
Axial movement and radial rotating, spring housing are located at driven shaft, and the both ends of spring are supported between bevel pinion and clutch frustum, bullet
Spring is in compressive state, and in the presence of spring power, clutch frustum applies thrust, fluid,matching power pusher to speed change frustum
To the thrust of frictional disk, the speed change frustum surfaces of two driven shaft ends and frictional disk intimate surface contact and it is slidably matched, greatly
Engaged between bevel gear and bevel pinion, while the axis co-planar of the axis of two driven shafts and input shaft.When not needing power
During transmission, clutch frustum is axially moveable compression spring in the presence of fluid power pusher, does not apply thrust to speed change frustum, rubs
Wipe disk to be no longer in close contact with speed change frustum, disconnect power transmission.Two driven shafts positioned opposite are designed in the present invention, can be with
Realize to frictional disk and bevel gear wheel uniform stressed, avoid producing unbalance stress and influenceing the cooperation of bevel gear, be further ensured that
Steady transmission, bipyramid platform is provided with each driven shaft, realizes that clutch is integrated with speed change.
Said structure is further qualified, described output shaft enter casing one end, be sequentially provided with bevel gear wheel and
Frictional disk, one block of plate affixed with casing is provided between bevel gear wheel and frictional disk, be fixed with the plate promote frictional disk and
The fluid power pusher that clutch frustum axially moves on corresponding axle, friction panel surface and the speed change frustum of two driven shaft ends
Intimate surface contact.This programme is on the basis of said structure, and a frictional disk, increased friction are added in output shaft end
Disk is oppositely arranged with original frictional disk, and two frictional disks are controlled by a fluid power pusher, the pressure phase of two frictional disks
Together, the on the one hand contact area of increase frictional disk and speed change frustum, increasing friction force, improves transmission efficiency, on the other hand can be with
Avoid driven shaft and clutch frustum because unidirectionally by lateral thrust it is uneven and caused by driven shaft flexural deformation, influence the equipment longevity
Life.
Said structure is further qualified, described clutch frustum can be realized around the rotation of driven shaft axis and edge simultaneously
Driven shaft moves axially.
Said structure is further qualified, gap is left in described two adjacent one end of driven shaft, and two shaft ends lead to
Axle sleeve c connections are crossed, the bearing coordinated with two driven shafts is provided with axle sleeve c.The program is further to two driven shafts
Adjacent shaft end is constrained, and in the case of parts assembly precision deficiency, avoids two driven shafts from being produced because of unbalance stress
Raw rotating speed is different, so as to produce the latch phenomenon of bevel gear, influences part service life.
Said structure is further qualified, the taper angle of described frictional disk is 60-90 degree, frictional disk and speed change frustum
Taper angle sum be 180 degree.Due between the frictional disk in this structure and speed change frustum being driven by frictional force, and pass
Dynamic direction requires 90 degree of deflectings, in order to improve transmission efficiency, avoids producing driven shaft during deflecting bending deflecting, it is therefore desirable to rub
The taper for wiping disk is less than or equal to the taper of speed change frustum, passes through theory analysis and experimental verification, it is determined that the taper angle of frictional disk.
Said structure is further qualified, described clutch frustum is adjacently positioned with speed change frustum, and clutch frustum passes through
On driven shaft, the big end of clutch frustum is provided with the annular groove coordinated with spring for inner sleeve, ball retainer and outer sleeve, from
Close frustum outer wall and be provided with the strip groove that post cooperation is pushed away with clutch, the big end of speed change frustum is provided with matches somebody with somebody with ball retainer and inner sleeve
The shoulder hole of conjunction.
Said structure is further qualified, described outer sleeve length and clutch frustum equal length, outer sleeve with from
Frustum interference fit is closed, is slided without relative, inner sleeve is interference fitted with driven shaft, is slided without relative, inner sleeve length and ball
Retainer length is all higher than outer sleeve length, and inner sleeve is integrated with ball retainer manufacture, and rolling is evenly equipped with ball retainer
Pearl.
Said structure is further qualified, described fluid power pusher is fixedly mounted on casing, in fluid power pusher
On be respectively equipped with that clutch pushes away post and speed change pushes away post, speed change pushes away post and is evenly arranged respectively along friction disk axis, and speed change pushes away post with rubbing
The one end for wiping disk contact is roller, and roller rotates with the rotation of frictional disk, and clutch pushes away one end that post contacts with clutch frustum
Provided with pushing away pin with what clutch frustum outside wall surface strip groove coordinated.In the program, clutch pushes away one end that post contacts with clutch frustum
Have and push away pin with what strip groove coordinated, ensure that clutch is steady.Because frictional disk is with input shaft and output shaft rotation, and fluid power pushes away
Dynamic device is fixed on casing, therefore in order to reduce both frictions, both contacts site are designed as flexible roller, and
The number of roller is distributed on the circumferencial direction of frictional disk, ensures uniform force.
Said structure is further qualified, each clutch pushes away post on described fluid power pusher and speed change pushes away the inside of post
Control interface is pooled to the ECU of outside, and ECU manipulates to the propulsive force of fluid power pusher, fluid power pusher
Post is separately pushed away by clutch post is pushed away to the axial location and speed change of clutch frustum and the axial location of frictional disk is controlled
System, the interruption and recovery of power transmission are realized, by tachometric survey of the sensor to output shaft, utilizes frictional disk and speed change frustum
Between the change of contacting section radius realize variable speed.In the program, fluid power pusher be provided with respectively to frictional disk and
The speed change of clutch frustum effect pushes away post and clutch pushes away post, and effect of the fluid power pusher to frictional disk and clutch frustum is separate
Carry out.When not needing passing power, fluid power pusher applies thrust to clutch frustum, while stops what frictional disk was applied
Thrust, when needing power to transmit, fluid power pusher applies thrust to frictional disk, while removes the thrust to clutch frustum, realizes
The effect of clutch.
Said structure is further qualified, between described spring and bevel pinion and bevel pinion and cabinet wall
Between be respectively equipped with sleeve b and sleeve a, between its middle sleeve b and driven shaft interference connect.Each spring is coaxially mounted to accordingly
Driven shaft on, the sleeve b being connected with driven shaft interference is installed, during reducing spring works between spring and bevel pinion
Infringement to bevel pinion, while sleeve b can play axially position effect to spring, coordinate another sleeve a on coaxial
Axially position effect can be played to bevel pinion.
Said structure is further qualified, described input shaft and output shaft placed coaxial, is further ensured that moment of torsion passes
The stabilization of whole device during passing.
The beneficial effects of the invention are as follows：The present invention being bored to clutch independently using ECU control fluid power pusher
Platform and frictional disk are uniformly pressed, and combine the spring on driven shaft, when needing power to transmit, continuously change input
The contacting section radius of frictional disk and ring cloth speed change frustum, then engaging by bevel pinion and bevel gear wheel, realize compared with
Smoothly variable speed in big slewing range, can be applied in powerful equipment, when not needing power to transmit, Ke Yiping
Frictional disk and speed change frustum are quietly separated, smoothly cuts off power.The present invention fully applies the combination that friction is engaged with gear
Effect, is dexterously applied in combination spring and fluid power pusher, realizes continuous change gearratio, can transmit larger transmission
Than.Used design of part is simple with installation site, and manufacturing cost is low, easy to maintenance.Fluid power pusher is utilized in the present invention
The thrust of offer has a self-regulating function, and liquid is compressible；Speed change pushes away post and the contact jaw of frictional disk is arranged to rolling element structure,
The stress of adaptive adjustment speed change frustum, prevents bias, causes two bevel gears asynchronous and produce stuck phenomenon.It is ingenious
Ground make use of the interaction that bipyramid platform coordinates, and it is integrated with speed change to realize clutch.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of another embodiment of the present invention；
Fig. 3 is the structural representation that frictional disk is connected with speed change frustum；
Fig. 4 is clutch frustum and speed change frustum and the structural representation of driven axis connection；
Fig. 5 is the cone angle cooperation schematic diagram of frictional disk and frustum；
Fig. 6 is fluid power pusher and its control device schematic diagram in the present invention.
In figure, 1, input shaft, 2, end cap, 3, fluid power pusher, 4, spring, 5, taper roll bearing, 6, casing, 7, cylinder
Roller bearing, 8, output shaft, 9, bevel gear wheel, 10, bevel pinion, 11, sleeve a, 12, driven shaft, 13, sleeve b, 14, clutch
Frustum, 15, trip bolt, 16, speed change frustum, 17, frictional disk, 18, axle sleeve c, 19, ECU, 20, speed change push away post, 21, from
Conjunction pushes away post, and 22, inner sleeve, 23, ball retainer, 24, outer sleeve.
Embodiment
It is such as attached present invention relates particularly to a kind of frictional infinitely variable speed device of ring cloth bipyramid platform using frictional drive
Shown in Fig. 1, casing 6 is specifically included, and input shaft 1, output shaft 8 and two inside casing 6 set on casing 6
The parts configured on axle, input shaft 1 and output shaft 8 are arranged on mission case 6 by cylinder roller bearing 7, and use axle
Socket end lid 2 carries out axially position to bearing, and to the dust seal of casing 6, input shaft 1 is co-axially mounted with output shaft 8, is further ensured that
The stabilization of whole device in moment of torsion transmittance process；Wherein the one end of input shaft 1 is provided with the frictional disk 17 of taper type structure, frictional disk 17
Slided in the presence of fluid power pusher 3 along input shaft 1, one end of output shaft 8 is provided with bevel gear wheel 9, input shaft 1 and output shaft
8 diameter parallels；The axis of driven shaft 12 is vertical with input shaft 1, is fixed with driven shaft 12 on bevel pinion 10 and input shaft 8
Bevel gear wheel 9 is engaged, and clutch frustum 14 and speed change frustum 16 are arranged with driven shaft 12, and described clutch frustum 14 passes through inner sleeve
For the ball sliding bush that cylinder 22, ball retainer 23 and outer sleeve 24 are formed located on driven shaft 12, clutch frustum 14 can be around transmission
Axle 12 is rotated and axially moved along power transmission shaft 12, and speed change frustum 16 is adjacently positioned with clutch frustum 14, and clutch frustum 14 is in bullet
Slided in the presence of spring 4 along driven shaft 12, the thrust of spring 4 is transferred to speed change frustum 16, frictional disk 17 promotes in fluid power
The impetus that device 3 pushes away post 20 by speed change moves along input shaft 1, under the mutual cooperation of fluid power pusher 3 and spring 4, rubs
The contacting section radius for wiping disk 17 and speed change frustum 16 continuously changes, and can continuously change gearratio, then pass through bevel pinion 10
Expand gearratio with engaging for bevel gear wheel 9, expand the gear range of device, realize in larger slewing range and
Variable speed in the case of high torque is transmitted.Clutch is additionally provided with fluid power pusher 3 and pushes away post 21, when need disconnect power transmission
When, fluid power pusher 3 pushes away post 21 by clutch and promotes clutch frustum 14 to be moved to the direction of spring 4, removes to speed change frustum 16
Thrust, speed change frustum 16 are no longer in close contact with frictional disk 17, cut off power transmission；When needing to recover power transmission, fluid power
Pusher 3 pushes away post 21 by clutch and removes thrust to clutch frustum 14, under the synergy of spring 4 and fluid power pusher 3,
Closely knot touches frictional disk 17 with speed change frustum 16, and it is integrated with speed change to realize clutch.
As can be seen that the driven shaft 12 in the present invention is provided with two in accompanying drawing 1 and accompanying drawing 2, axis collinear and relative set
Put, may be arranged as 4, be added to the front and rear surfaces of casing 6.Installed by taper roll bearing 5 one end of driven shaft 12
In transmission case body, spring 4 that the other end is arranged, the sleeve b13 that its both ends is in contact with the small end face of bevel pinion 10 respectively
Contacted with the large end face annular groove of clutch frustum 14, so in the presence of the elastic force of spring 4, clutch frustum 14 is along driven shaft
12 slide thrust being transferred to speed change frustum 16, ensure that the surface of speed change frustum 16 and the intimate surface contact of frictional disk 17, two
The axis of driven shaft 12 and the axis co-planar of input shaft 1.The arrangement of driven shaft 12, it is possible to achieve to frictional disk 17 and auger
The uniform stressed of gear 9, avoid producing unbalance stress and influenceing the cooperation of bevel gear, further ensure steady transmission.
Accompanying drawing 2 is another embodiment of the present invention, on the basis of accompanying drawing 1, enters one end of casing 6 in output shaft 8
Frictional disk 17 is added, the frictional disk 17 is sheathed on output shaft 8, and as output shaft 8 rotates, in bevel gear wheel 9 and friction
One block of plate affixed with casing 6 is provided between disk 17, the frictional disk 17 is promoted by the fluid power pusher 3 being fixed on plate, edge
Axial movement, the intimate surface contact of speed change frustum 16 on the surface of frictional disk 17 and two ends of driven shaft 12.In output shaft 8
Shaft end adds a frictional disk 17, and increased frictional disk 17 is oppositely arranged with original frictional disk 17, two frictional disks 17 by
Controlled to a fluid power pusher 3, the pressure of two frictional disks 17 is identical, on the one hand increases frictional disk 17 and speed change frustum 16
Contact area, increasing friction force, improve transmission efficiency, on the other hand can avoid driven shaft 12 because unidirectionally by lateral thrust not
The equal and caused flexural deformation of driven shaft 12, influences equipment life.
Shown in accompanying drawing 3, in order in the case of parts assembly precision deficiency, avoid two driven shafts 12 because of unbalance stress
And caused rotating speed is different, so as to produce the latch phenomenon of bevel gear, part service life is influenceed, to the phase of two driven shafts 12
Adjacent shaft end is constrained, and gap is left in two 12 adjacent one end of driven shaft, and two shaft ends are connected by axle sleeve c18, in axle
Cover the bearing for being provided with c18 and coordinating with two driven shafts 12.
In figure 4, bipyramid platform is adjacently positioned, and speed change frustum 16 is located on driven shaft 12 by spline, clutch frustum 14
It is located at by the ball sliding bush manufactured by inner sleeve 22, ball retainer 23 and outer sleeve 24 on driven shaft 12, ball retainer
23 are provided with the ball of even cloth, are wherein interference fitted between inner sleeve 22 and driven shaft 12, are slided without relative, the outer wall of inner sleeve 22
There is the arc groove for coordinating ball to rotate, inner sleeve 22 is integrated with the manufacture of ball retainer 23, outer sleeve 24 and clutch frustum
14 equal lengths, outer sleeve 24 are interference fitted with the inwall of clutch frustum 14, and both slide without relative, the outside wall surface of clutch frustum 14
There is strip groove, strip groove ensures that clutch pushes away post and contacted with clutch frustum, ensures that clutch is steady, clutch frustum 14 and spring 4
One end of contact is provided with annular groove.The one end adjacent with clutch frustum 14 of speed change frustum 16 is provided with to be protected with inner sleeve 22 and ball
Hold the shoulder hole of the cooperation of frame 23.
Due between the frictional disk 17 and speed change frustum 16 in this structure being driven by frictional force, and transmission direction will
90 degree of deflectings are asked, in order to improve transmission efficiency, avoids producing driven shaft 12 during deflecting bending deflecting, sets the cone of frictional disk 17
Degree angle α is 60-90 degree, and the taper angle sum of frictional disk 17 and speed change frustum 16 ensures that input shaft 1 hangs down with driven shaft 12 for 180 degree
Directly, as shown in Figure 5.Above-mentioned setting purpose is, it is necessary to which the taper of frictional disk 17 passes through reason less than or equal to the taper of speed change frustum 16
By analysis and experimental verification, it is determined that the taper angle of frictional disk 17.
In the present invention, fluid power pusher 3 is fixedly connected on the inwall of mission case 6 with the trip bolt 15 of uniform ring cloth
On, be respectively equipped with that clutch pushes away post 21 and speed change pushes away post 20 on fluid power pusher 3, fluid power pusher 3 it is corresponding push away post number with
Corresponding frustum number is equal, and alternate central angle is equal, is rubbed with ensureing that pressure that fluid power pusher 3 is acted on uniformly is applied to
Wipe on disk 17 and clutch frustum 14, each frictional disk 17 is identical with the CONTACT WITH FRICTION section of speed change frustum 16, ensures to transmit moment of torsion
Uniform and stable.Speed change pushes away post 20 and arranged respectively along the axisymmetrical of frictional disk 17, and speed change pushes away one that post 20 contacts with frictional disk 17
Hold and rotated for roller, roller with the rotation of frictional disk 17.The active force that speed change pushes away the application of post 20 is acted on frictional disk 17,
The axis of the centre normal of service portion facet and corresponding speed change frustum 16 is in a plane together, with this ensure to frictional disk 17 with
The active force of each speed change frustum 16 is balanced, to the contacting section radius knots modification phase of frictional disk 17 and ring cloth speed change frustum 16
Deng.Clutch pushes away post 21 and is also integrated on fluid power pusher 3, and clutch pushes away post 21 and corresponded with clutch frustum 14, and clutch pushes away post 21
One end that clutch frustum 14 contacts is provided with and pushes away pin with what the outside wall surface strip groove of clutch frustum 14 coordinated, when driven shaft 12 rotates
When clutch frustum 14 does not rotate, clutch frustum 14 can be smoothly promoted to axially move.
As shown in Figure 6, each internal control interface for pushing away post is pooled to outside on the fluid power pusher 3 in the present invention
ECU 19, ECU 19 is rationally manipulated to the propulsive force of fluid power pusher 3, by sensor to output shaft 8
Speed acquisition measures, and according to the related data gathered, the Reasonable Regulation And Control fluid power pusher 3 of ECU 19 is applied to frictional disk 17
On pressure, realize variable speed using the continuous change of the contacting section radius between frictional disk 17 and speed change frustum 16.
In the present invention, frictional disk 17 and speed change frustum 16 are the material manufactures big and wear-resisting by coefficient of friction, frictional disk
17 and speed change frustum 16 be connected to respectively by spline on input shaft 1 and driven shaft 12, the axiality of frictional disk 17 and input shaft 1 has
The axiality of certain requirement, speed change frustum 16 and clutch frustum 14 and corresponding driven shaft 12 has certain requirement, frictional disk 17
With the CONTACT WITH FRICTION of speed change frustum 16, frictional disk 17 together rotates with input shaft 1, and the rubbed disk 17 of moment of torsion of input shaft 1 passes to
Speed change frustum 16, driven shaft 12 is transferred to, rationally designs the size of input shaft 1 and driven shaft 12, ensure frictional disk 17 and speed change
Frustum 16 does not depart from corresponding axle.
In the present invention, the small end of clutch frustum 14 and speed change frustum 16 is near away from input shaft 1, and big end is remote away from input shaft 1, clutch
The big end open loop connected in star of frustum 14, the installation and one end for facilitating spring 4 are fixed, and weaken spring 4 at work and clutch frustum
14 mutual abrasion, speed change frustum 16 greatly end be provided with inner sleeve 22 and ball retainer 23 cooperation shoulder hole, ensure from
During closing the axial movement of frustum 14, the axial movement of speed change frustum 16 does not interfere, the axiality of spring 4 and driven shaft 12
Have certain requirement, the clutch of spring 4 and fluid power pusher 3 push away post 21 cooperate regulation can be achieved the interruption of power transmission with
Recover, spring 4 pushes away contact position of the mutual cooperation of the post 20 regulation frictional disk 17 with speed change frustum 16 with the speed change of fluid power pusher 3
Put, can continuously change the contacting section radius of the two, the continuous change of gearratio is realized, between spring 4 and bevel pinion 10
The sleeve b13 being connected with the interference of driven shaft 12 is installed, sleeve b13 can avoid the mutual abrasion of spring 4 and bevel pinion 10,
Extend its service life, while positioning action can be played to one end of spring 4 and bevel pinion 10 respectively.
In the present invention, the bevel pinion 10 of ring cloth distinguishes its corresponding spline of driven shaft 12 connection, frictional disk 17 with it is defeated
Enter axle 1 to connect by spline, speed change frustum 16 is connected with its respective spline of driven shaft 12, and each bevel pinion 10 is respective with it
The spline of driven shaft 12 connects, and bevel gear wheel 9 is connected with the spline of output shaft 8, reduces the input shaft 1, driven connected to it respectively
The strength reduction of axle 12 and output shaft 8, larger moment of torsion transmission, frictional disk 17, ring cloth speed change frustum 16 and each gear can be born
Guidance quality and centering it is preferable, it is critically important to sliding process of the frictional disk 17 with ring cloth speed change frustum 16 on axle；Small bevel gear
Wheel 10 has certain requirement with the axiality of corresponding driven shaft 12, be provided between bevel pinion 10 and the inwall of casing 6 with it is driven
The sleeve a11 of the interference of axle 12 connection, is positioned to bevel pinion 10.
In the present invention, each bevel pinion 10 engages with same bevel gear wheel 9, increases the transmission of whole speed change gear
Than expanding transmission range, bevel gear wheel 9 is connected with the spline of output shaft 8, can carry high torque, bevel gear wheel 9 and output shaft
8 have certain axiality requirement, and the structure design of output shaft 8 has the shaft shoulder to carry out axially position to bevel gear wheel 9.
In the present invention, on the axial direction of installation driven shaft 12, the both ends of mission case 6 are provided with circular hole, it is convenient from
The mounting arrangements of moving axis 12.
The present invention adjusts frictional disk contact with speed change frustum using the dexterously installation site of fluid power pusher and spring
Position, continuously change contacting section radius, reach the purpose of variable speed, ECU is according to equipment operating rate, intelligence
Ground controls fluid power pusher to press frictional disk, frictional disk is moved forwards, elastic compression of the ring cloth speed change frustum in spring
Under effect, when by pressure from frictional disk, input shaft is gradually distance from, continuously reduces frictional disk and speed change frustum
Contacting section radius, gearratio are continuously reduced.When needing to increase gearratio, ECU intelligent control fluid power pusher, subtract
The pressure that small fluid power pusher applies to frictional disk, while frictional disk reduces to the pressure of speed change frustum, when this pressure is less than bullet
When spring is to the elastic force of the frustum that rubs, friction frustum will be to input direction of principal axis movement, while frictional disk is in the pressure of ring cloth speed change frustum
Rearward moved under power, continuously increase the contacting section radius of frictional disk and speed change frustum, gearratio continuously increases.Work as torsion
After the rubbed disk of square is defeated by speed change frustum, the moment of torsion that driven shaft obtains engages transmission by ring cloth bevel pinion and bevel gear wheel
To output shaft.The present invention reliable and smoothly transmission, can transmit with the electrodeless variable-speed in larger transmission range is realized
Larger moment of torsion, realize the variable speed on powerful device.The present invention dexterously make use of the structure of bipyramid platform, need
When disconnecting power transmission, fluid power pusher is by promoting clutch frustum to remove and pushed away to speed change frustum application away from input shaft
Power, speed change frustum no longer keep being in close contact with frictional disk, when needing to recover power transmission, remove clutch and push away post to clutch cone
The promotion of platform, speed change frustum by from spring transmission come thrust, with frictional disk be in close contact, passing power, realize from
Close integrated with speed change, the stepless speed change device is compact-sized, simple, and it is simple to form the component structural of the device, repairs
It is convenient, low cost and other advantages.
Claims (10)
1. the frictional infinitely variable speed device of a kind of ring cloth bipyramid platform, it is characterised in that including casing（6）, in casing（6）On
Provided with input shaft（1）And output shaft（8）, described input shaft（1）And output shaft（8）Diameter parallel, input shaft（1）One end is provided with
The frictional disk of taper type structure（17）, frictional disk（17）In fluid power pusher（3）On speed change push away post（20）Act on lower edge input
Axle（1）Slide, output shaft（8）One end be provided with bevel gear wheel（9）, its middle friction tray（17）And bevel gear wheel（9）Positioned at casing
（6）Inside, in casing（6）Side wall on be additionally provided with driven shaft（12）, driven shaft（12）Axis and input shaft（1）Vertically, from
Moving axis（12）Provided with two, two driven shafts（12）Axis collinear and be oppositely arranged, driven shaft（12）It is fixedly arranged in the middle of conelet
Gear（10）, driven shaft（12）Free end is arranged with speed change frustum（16）With clutch frustum（14）, clutch frustum（14）In fluid power
Pusher（3）On clutch push away post（21）Can be in driven shaft under effect（12）On axially move, spring（4）It is sheathed on driven shaft
（12）, spring（4）Both ends be supported on bevel pinion（10）With clutch frustum（14）Between, spring（4）In compressive state,
Spring（4）In the presence of elastic force, two driven shafts（12）The speed change frustum of end（16）Surface and frictional disk（17）Surface is tight
Contiguity is touched and is slidably matched, bevel gear wheel（9）And bevel pinion（10）Between engage, while two driven shafts（12）Axis
With input shaft（1）Axis co-planar.
2. the frictional infinitely variable speed device of a kind of ring cloth bipyramid platform according to claim 1, it is characterised in that described
Output shaft（8）Into casing（6）One end, be sequentially provided with bevel gear wheel（9）And frictional disk（17）, in bevel gear wheel（9）With
Frictional disk（17）Between be provided with one piece and casing（6）Affixed plate, promotion frictional disk is fixed with the plate（17）Axial movement
Fluid power pusher（3）, frictional disk（17）Surface and two driven shafts（12）The speed change frustum of end（16）Intimate surface contact.
3. the frictional infinitely variable speed device of a kind of ring cloth bipyramid platform according to claim 1, it is characterised in that described
Clutch frustum（14）It can realize simultaneously around driven shaft（12）Axis rotates and along driven shaft（12）Axial movement.
4. the frictional infinitely variable speed device of a kind of ring cloth bipyramid platform according to claim 1, it is characterised in that described
Two driven shafts（12）Gap is left in adjacent one end, and two shaft ends pass through axle sleeve c（18）Connection, in axle sleeve c（18）Inside set
Have and two driven shafts（12）The bearing of cooperation.
5. the frictional infinitely variable speed device of a kind of ring cloth bipyramid platform according to any one in claim 1 or 2, its
It is characterised by described frictional disk（17）Taper angle be 60-90 degree, frictional disk（17）With speed change frustum（16）Taper angle it
With for 180 degree.
6. the frictional infinitely variable speed device of a kind of ring cloth bipyramid platform according to claim 1, it is characterised in that described
Clutch frustum（14）With speed change frustum（16）It is adjacently positioned, clutch frustum（14）Pass through inner sleeve（22）, ball retainer
（23）And outer sleeve（24）Located at driven shaft（12）On, clutch frustum（14）Big end is provided with and spring（4）The annular groove of cooperation,
Clutch frustum（14）Outer wall is provided with pushes away post with clutch（21）The strip groove of cooperation, speed change frustum（16）Big end is provided with to be protected with ball
Hold frame（23）And inner sleeve（22）The shoulder hole of cooperation.
7. the frictional infinitely variable speed device of a kind of ring cloth bipyramid platform according to claim 6, it is characterised in that described
Outer sleeve（24）Length and clutch frustum（14）Equal length, outer sleeve（24）With clutch frustum（14）Interference fit, no phase
To sliding, inner sleeve（22）With driven shaft（12）Interference fit, slided without relative, inner sleeve（22）Length and ball retainer
（23）Length is all higher than outer sleeve（24）Length, inner sleeve（22）With ball retainer（23）Manufacture is integrated, ball retainer
（23）Inside it is evenly equipped with ball.
8. the frictional infinitely variable speed device of a kind of ring cloth bipyramid platform according to claim 6, it is characterised in that described
Fluid power pusher（3）It is fixedly mounted on casing（6）On, in fluid power pusher（3）On be respectively equipped with clutch and push away post（21）And change
Speed pushes away post（20）, speed change pushes away post（20）Respectively along frictional disk（17）Axis is evenly arranged, and speed change pushes away post（20）With frictional disk
（17）One end of contact is roller, and roller is with frictional disk（17）Rotation and rotate, clutch pushes away post（21）With clutch frustum
（14）One end of contact is provided with and clutch frustum（14）What outside wall surface strip groove coordinated pushes away pin.
9. the frictional infinitely variable speed device of a kind of ring cloth bipyramid platform according to claim 5, it is characterised in that described
Fluid power pusher（3）Upper each clutch pushes away post（21）Post is pushed away with speed change（20）Internal control interface be pooled to outside it is automatically controlled
Unit（19）, ECU（19）To fluid power pusher（3）Propulsive force manipulated, fluid power pusher（3）Separately
Post is pushed away by clutch（21）To clutch frustum（14）Axial location and speed change push away post（20）To frictional disk（17）Axial location
It is controlled, the interruption and recovery of power transmission is realized, by sensor to output shaft（8）Tachometric survey, utilize frictional disk
（17）With speed change frustum（16）Between contact when section radius change realize variable speed.
10. the frictional infinitely variable speed device of a kind of ring cloth bipyramid platform according to claim 1, it is characterised in that described
Spring（4）With bevel pinion（10）Between and bevel pinion（10）With casing（6）Sleeve b is respectively equipped between inwall（13）
With sleeve a（11）, its middle sleeve b（13）With driven shaft（12）Between interference connect.
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| CN201610215527.5A CN105840755B (en) | 2016-04-08 | 2016-04-08 | A kind of frictional infinitely variable speed device of ring cloth bipyramid platform |
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| CN201610215527.5A CN105840755B (en) | 2016-04-08 | 2016-04-08 | A kind of frictional infinitely variable speed device of ring cloth bipyramid platform |
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| CN105840755B true CN105840755B (en) | 2017-12-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110985617B (en) * | 2019-11-22 | 2023-12-19 | 金宝兴电子(深圳)有限公司 | Improved mechanism based on existing continuously variable transmission |
| CN111485816A (en) * | 2020-04-15 | 2020-08-04 | 杨玉芹 | Convenient ground auger with rotating speed adjusting function |
| CN112249616A (en) * | 2020-09-29 | 2021-01-22 | 俞利明 | Transmission speed control mechanism |
| CN112296440B (en) * | 2020-10-27 | 2021-05-25 | 哈尔滨商业大学 | Intelligent cutting robot based on computer |
| CN112547402A (en) * | 2021-01-27 | 2021-03-26 | 深圳市一方玉贸易有限公司 | Multi-functional spraying equipment of polyurea of arbitrary ratio |
| CN116696771A (en) * | 2023-08-09 | 2023-09-05 | 鸿陆智能科技(山东)有限公司 | Lifting self-speed-regulating impeller device for MVR (mechanical vapor recompression) steam compressor |
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| US5230670A (en) * | 1990-12-25 | 1993-07-27 | Nissan Motor Co., Ltd. | Friction roller type continuously variable transmission |
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| CN105840755A (en) | 2016-08-10 |
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