CN110043623A - A kind of stepless speed change device - Google Patents
A kind of stepless speed change device Download PDFInfo
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- CN110043623A CN110043623A CN201910249533.6A CN201910249533A CN110043623A CN 110043623 A CN110043623 A CN 110043623A CN 201910249533 A CN201910249533 A CN 201910249533A CN 110043623 A CN110043623 A CN 110043623A
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- driving
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- acting surface
- speed change
- circular cone
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- 230000008859 change Effects 0.000 title claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000007667 floating Methods 0.000 claims description 65
- 230000033001 locomotion Effects 0.000 claims description 28
- 238000009434 installation Methods 0.000 abstract description 2
- 239000000306 component Substances 0.000 description 23
- 238000013461 design Methods 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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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
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/44—Gearings providing a continuous range of gear ratios in which two members of non-uniform effective diameter directly co-operate with one another
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
- F16H61/664—Friction gearings
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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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/04—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism
- F16H63/06—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
The present invention provides a kind of stepless speed change devices, comprising: output shaft, the taper cone barrel including inner hollow, the lateral surface of the taper cone barrel are used for output driving power, and the medial surface of the taper cone barrel is the first acting surface；Input shaft, circular cone entity including the inside of the taper cone barrel is arranged in, the circular conical surface of the circular cone entity is the second acting surface, the circular cone direction of second acting surface is with the circular cone of first acting surface towards on the contrary, the first bus of first acting surface and the second bus of the second acting surface are parallel；Driving member；Shift drive mechanism, for driving the driving member to move along operating path to change the transmission ratio between the input shaft and the output shaft, the operating path extends along first bus and the second generatrix direction.Technical solution volume compact disclosed by the invention, to facilitate the layout and installation of engine room inside；Speed changing effect is smooth simultaneously, and speed changing effect is good.
Description
Technical field
The present invention relates to speed changer fields, more particularly to a kind of stepless speed change device.
Background technique
Stepless transmission is the key subject in development of automobile later period, in the epoch for pursuing car comfort, buncher
Accelerated steadily with it, fuel-efficient feature, enjoys great popularity under acceleration mode.Currently, the mode that stepless transmission is realized has fluid power biography
It is more reliable to belong to machine driving for dynamic, Electric Drive and machine driving.In the machine driving designed, if there is tooth
The engagement of shape structure, be the stepless transmission for belonging to infinite approach, is not real unlimited stepless torque changing.And the machine of unlimited bending moment
Tool transmission has disc type, circular cone type, spherical surface formula.Circular cone type is divided to directly contact and again with two kinds of intermediate parts mediate contact.
It discloses to hit for the ring of conical ring formula stepless transmission in the related technology and stops protecting structure, including the first transmission cone,
The surface of transmission ring, the first transmission cone is contacted with a surface of transmission ring, and the small end of the first transmission cone is set
There is the shaft shoulder opposite with poppet surface, the shaft shoulder has the shape of revolving body；The transmission ring, the shaft shoulder, poppet surface have
Following geometry matching relationship: when transmission ring contacts the shaft shoulder, there is a first contact point between transmission ring and the shaft shoulder, at the same transmission ring with
There is the second contact point between poppet surface, the distance of first contact point to axis of cone line is the first contact radius, the second contact point to cone
The distance of axis is the second contact radius, and first contact radius is less than the second contact radius.It is disclosed in the technological document
Transmission input shaft and output shaft arranged in space in dislocation, and pass through volume biggish conical ring transmission, whole speed change body
Product is big, the layout being unfavorable in cabin.
Summary of the invention
The present invention provides a kind of small in size, speed changing effect is good, the smooth stepless speed change device of speed-change process.
A kind of stepless speed change device, comprising:
The lateral surface of output shaft, the taper cone barrel including inner hollow, the taper cone barrel is used for output driving power, the circular cone
The medial surface of cylinder is the first acting surface；
Input shaft, the circular cone entity of the inside including the taper cone barrel is arranged in, the circular conical surface of the circular cone entity are the
Two acting surfaces, the circular cone of second acting surface is towards the circular cone with first acting surface towards on the contrary, first effect
First bus in face and the second bus of the second acting surface are parallel；
Driving member, positioned at the input shaft axis in the radial direction and transmission connection is in first acting surface and the
Between two acting surfaces；
Shift drive mechanism, for driving the driving member to move along operating path with change the input shaft with it is described defeated
Transmission ratio between shaft, the operating path extend along first bus and the second generatrix direction.
Several optional ways also provided below, but be not intended as the additional qualification to above-mentioned overall plan, only into
The supplement of one step is preferred, and under the premise of no technology or logical contradiction, each optional way can be individually for above-mentioned totality side
Case is combined, and be can also be and is combined between multiple optional ways.
Optionally, the driving member is the rotor with first acting surface and the second effect surface wearing drive.
Optionally, there are two the rotor is set and mutual frictional drive, two rotors are acted on described first respectively
Face and the second effect surface wearing drive.
Optionally, the shift drive mechanism includes:
Rotor casing, for limiting and guiding position of the rotor on the operating path；
Band is driven, is fixed with the rotor casing and for driving the rotor casing to change the position on the operating path
It sets；
Guide rod, for guiding the rotor casing to move along the operating path；
Driving source, for providing driving force for the driving band.
Optionally, the shift drive mechanism includes rigid guide rod and floating platform, and the floating platform includes:
Rotor casing, for limiting and guiding position of the rotor on the operating path and be hinged at both ends can
The first sliding block and the second sliding block to freely swing, first sliding block are slidably matched with the guide rod；
Floating frame, including the floating lever being slidably matched with second sliding block and the driving being mounted on the floating lever
Band, the driving band is for driving second sliding block to move along the floating lever；
Driving source, for providing driving force for the driving band.
Optionally, the rotor is installed on the rotor casing by shaft, and the shaft is arranged on the rotor casing
Strip-shaped hole, two rotors can mutually be drawn close or separate along the strip-shaped hole.
Optionally, the stepless speed change device further includes cabinet, and the input shaft is rotatably installed on the cabinet, described
Circular cone entity is housed in the cabinet；The shift drive mechanism is arranged around the circular cone entity, wherein the guiding
Bar is fixed with the cabinet, and the floating frame is movably arranged on the cabinet；The taper cone barrel is rotatably installed in the case
The circular cone entity and shift drive mechanism are accommodated in vivo and by internal hollow region, it is real that the rotor is in the circular cone
It offsets between body and taper cone barrel and with the two.
Optionally, the connection type of the floating platform and the cabinet are as follows:
The cabinet is equipped with the orientation elastic component for installing the floating platform, and the orientation elastic component can be in institute
It states stress and deformation on the floating direction of floating platform and keeps rigidity in the other direction；
Or
The cabinet is equipped with the electrical control mechanism for controlling the floating platform.
Optionally, the driving member has constant-speed ratio state, the movement side of the driving member under the constant-speed ratio state
To vertical with the plane where first bus and the second bus, the driving band is described for driving the driving member to exit
Constant-speed ratio state.
Optionally, the floating platform further includes for limiting the limited block of the driving with movement travel, the limit
Block is mounted on the driving and takes and move with driving band, the limited block when the driving band moves to design range
It offsets with the floating frame.
Technical solution disclosed by the invention can bring the technical effect of following optimization:
The form that volume compact, input shaft and output shaft are arranged can effectively reduce the volume of speed change gear, thus convenient
The layout and installation of engine room inside；
Speed changing effect is smooth, changes the transmission ratio between two circular conical surfaces by driving member, can be realized transmission ratio variation
Process uniform and smooth realizes that the different speed changes under different operating conditions need；
Speed changing effect is good, the speed of control driving member position and change location that can be fine and smooth by shift drive mechanism
Degree, so as to be precisely controlled speed ratio variation.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of stepless speed change device in the present embodiment；
Fig. 2 is the schematic diagram of internal structure that stepless speed change device omits after output shaft in Fig. 1；
Fig. 3 is enlarged drawing at A in Fig. 2.
The reference numerals are as follows in figure:
51, output shaft；511, taper cone barrel；512, asessory shaft；513, the first acting surface；514, the first bus；52, it inputs
Axis；521, circular cone entity；522, the second acting surface；523, the second bus；53, driving member；531, rotor；5311, shaft；54,
Shift drive mechanism；541, rotor casing；5411, the first sliding block；5412, the second sliding block；542, band is driven；543, guide rod；
544, turntable；545, floating platform；5451, limited block；546, floating frame；5461, floating lever.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
It should be noted that when component be referred to as with another component " connection " when, it can directly with another component
It connects or there may also be components placed in the middle.When a component is considered as " being set to " another component, it be can be directly
It connects and is arranged on another component or may be simultaneously present component placed in the middle.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body is not to be to limit the present invention.Term as used herein "and/or" includes one or more related
Listed item any and all combinations.
A kind of stepless speed change device, comprising:
Output shaft 51, the taper cone barrel 511 including inner hollow and the asessory shaft 512 with 511 frictional drive of taper cone barrel, circular cone
The lateral surface of cylinder 511 is the first acting surface 513 by 512 output driving power of asessory shaft, the medial surface of taper cone barrel 511；
Input shaft 52, the circular cone entity 521 of the inside including taper cone barrel 511 is arranged in, the circular conical surface of circular cone entity 521 are
Second acting surface 522, the circular cone of the second acting surface 522 is towards the circular cone with the first acting surface 513 towards on the contrary, the first acting surface
513 the first bus 514 is parallel with the second bus 523 of the second acting surface 522；
Driving member 53, positioned at input shaft 52 axis in the radial direction and transmission connection is in the first acting surface 513 and the
Between two acting surfaces 522；
Shift drive mechanism 54, for driving driving member 53 to move along operating path to change input shaft 52 and output shaft 51
Between transmission ratio, operating path (unlabeled in figure) extends along the first bus 514 and 523 direction of the second bus.
Input shaft 52 can freely be turned by 521 input power of circular cone entity that rotates with input shaft 52, circular cone entity 521
Dynamic, the taper cone barrel 511 being set in around circular cone entity 521 can also be freely rotated, the circular cone entity 521 backwards of taper cone barrel 511
Lateral surface the output power to outside stepless speed change device is used for by asessory shaft 512, round cone cylinder 511 is towards circular cone entity 521
Medial surface, i.e. the first acting surface 513, for receive circular cone entity 521 input power.Circular cone entity 521 and taper cone barrel 511
Circular cone towards on the contrary, i.e. indicate taper cone barrel 511 the lesser one end of diameter be located at one end that circular cone entity 521 is relatively large in diameter.
Therefore driving member 53 can be realized the transmission ratio variation of continuous stepless in drive cone cylinder 511 and circular cone entity 521.
Taper cone barrel 511 and circular cone entity 521 are circular conical surface, therefore are had without several buses, therefore 514 He of the first bus
Second bus 523 simultaneously refers not to specific bus, but indicates that a wherein bus for the first acting surface 513 is named as the first bus
514, while having a bus parallel with the first bus 514 on the second acting surface 522, which is named as the second bus 523.
When the first bus 514 is parallel with the second bus 523, a distance is formed between the first acting surface 513 and the second acting surface 522
Constant operating path, driving member 53 is moved along operating path and the moment keeps and the first acting surface 513 and the second acting surface 522
Transmission connection.
Therefore shift drive mechanism 54 only needs the position for limiting driving member 53 to can be achieved with the determination of transmission ratio, drives and passes
Moving part 53, which changes position, can be achieved with the variation of transmission ratio, and the accurate speed for controlling 53 change in location of driving member can be achieved with being driven
Than the speed of variation.Meet the needs of different operating condition different product different designs.
In one embodiment, driving member 53 is the rotor with 522 frictional drive of the first acting surface 513 and the second acting surface
531。
The design of rotor 531 can guarantee in transmission process, rotor 531, the first acting surface 513 and the second acting surface
The abrasion of 522 threes reduces, to effectively extend the service life of entire stepless speed change device.
In one embodiment, there are two rotor 531 is set and mutual frictional drive, two rotors 531 are acted on first respectively
522 frictional drive of face 513 and the second acting surface.
Two rotors 531 cooperate can be interior in a limited space, increases the contact area of transmission, to improve transmission
The service life of part 53.Meanwhile rotor 531 needs to change position between the first acting surface 513 and the second acting surface 522 and realizes transmission
The variation of ratio, therefore rotor 531 can be simultaneously by the active force between the first acting surface 513 and the second acting surface 522.Two turn
Son 531 can preferably alleviate the active force between the first acting surface 513 and the second acting surface 522 compared to single rotor 531,
Be conducive to movement of the driving member 53 between the first acting surface 513 and the second acting surface 522.More smooth speed change effect is provided
Fruit.
In one embodiment, shift drive mechanism 54 includes:
Rotor casing 541, for limiting simultaneously position of the guided rotor 531 on operating path；
Band 542 is driven, is fixed with rotor casing 541 and for driving rotor casing 541 to change the position on operating path；
Guide rod 543 is moved for guided rotor case 541 along operating path；
Driving source (not shown) can choose the motor being sequentially connected on turntable 544 in practice, for being driving band
542 provide driving force.
Because the needs of rotor 531 roll between the first acting surface 513 and the second acting surface 522, and will be in working ways
It is moved on diameter, spatial movement is complicated, and only the space constraint of accurate stable is just able to achieve good speed changing effect.Therefore rotor casing
541 roll between the first acting surface 513 and the second acting surface 522 for limiting simultaneously guided rotor 531, while can be in not shadow
Ringing while rotor 531 rolls drives it moving on operating path.Guide rod 543 can guarantee rotor 531 in working ways
Offset is not generated on diameter.Driving band 542 is can choose in actual use similar to design forms such as Timing Belts in engine,
Guarantee the precision of driving.
In one embodiment, shift drive mechanism 54 includes the guide rod 543 and floating platform 545 of rigidity, floating platform
545 include:
Rotor casing 541, for limit and position of the guided rotor 531 on operating path and both ends be hinged with can from
By the first sliding block 5411 and the second sliding block 5412 swung, the first sliding block 5411 is slidably matched with guide rod 543；
Floating frame 546 including the floating lever 5461 being slidably matched with the second sliding block 5412 and is mounted on floating lever 5461
On driving band 542, driving band 542 for drive the second sliding block 5412 moved along floating lever 5461；
Driving source, for providing driving force for driving band 542.
During input shaft 52 and output shaft 51 are mutually driven, when needing to change 53 position of driving member, first makees
Resistance can be applied to driving member 53 with face 513 and the second acting surface 522, the design of floating platform 545 is exactly to overcome this
Problem.541 both ends of rotor casing are equipped with the sliding block that can be swung, and the first sliding block 5411, which is arranged, to be slidably mounted on guide rod 543, because
This rotor casing 541 can be oppositely oriented bar 543 and slide and swing, and the second sliding, which is arranged, to be slidably mounted on floating lever 5461,
Floating lever 5461 and guide rod 543 are horizontal, therefore in the case where stable drive ratio, the rotating direction and operating path of rotor 531
Keep vertical, rotor casing 541 is parallel with the rotating direction of rotor 531.When needing to change transmission ratio, driving band 542 can be pulled
Second sliding block 5412 is moved along floating lever 5461, because hingedly will appear mistake between the first sliding block 5411 and the second sliding block 5412
Position, rotor casing 541 becomes like the shape of zigzag, the i.e. rotating direction of rotor 531 and operating path from straight line no longer at this time
Keep vertical, at this time because the overall length of rotor casing 541 is constant, between the guide rod 543 and floating lever 5461 of rigidity between
Away from will appear the trend to become smaller, which is discharged by the movement of floating lever 5461.
After the rotating direction of rotor 531 no longer keeps vertical with operating path, the rolling of rotor 531 can be on operating path
Component motion is generated, while the component motion not on working motion path can pass through rotor because of the guide rod 543 of rigidity
531 itself rolling discharge.Therefore it realizes that rotor 531 moves on operating path under the action of driving band 542, changes revolving speed
Than.
Other than it can smoothly change position of the rotor 531 on operating path, there are one important for floating platform 545
Be to a little be precisely controlled the rate that rotor 531 is displaced on operating path, that is, be precisely controlled rotation than variation speed
Rate.By the size of power or displacement that control driving band 542 applies the second sliding block 5412, the first sliding block can be controlled
5411 and second size that misplaces between sliding block 5412, so that the rotating direction of rotor 531 and the angle of operating path are controlled, from
And the component motion size that the rolling for controlling rotor 531 generates on operating path, the movement of cooperation driving band 542 can be accurate
The rate that is displaced on operating path of control rotor 531.
In one embodiment, rotor 531 is installed on rotor casing 541 by shaft 5311, and shaft 5311 is arranged in rotor casing
Strip-shaped hole (not shown) on 541, two rotors 531 can mutually be drawn close or separate along strip-shaped hole.
Two rotors 531 will appear abrasion in use, but the critical component of the busy transmission of rotor 531, abrasion
Rotor 531 later is it is possible that the case where being driven bad effect or even transmission failure, fills to extend whole variable speed
The service life set, rotor casing 541 are equipped with the strip-shaped hole for compensation, can adjust the spacing between rotor 531, so that extending makes
Use the service life.
In one embodiment, stepless speed change device further includes cabinet (not shown), and input shaft 52 is rotatably installed on cabinet,
Circular cone entity 521 is housed in cabinet；Shift drive mechanism 54 is arranged around circular cone entity 521, wherein guide rod 543 and case
Body is fixed, and floating frame 546 is movably arranged on cabinet；Taper cone barrel 511 is rotatably installed in cabinet and by the hollow of inside
Region accommodates circular cone entity 521 and shift drive mechanism 54, rotor 531 be between circular cone entity 521 and taper cone barrel 511 and with
The two offsets.
In actual use, taper cone barrel 511 is assemblied on cabinet by large size bearing, and circular cone entity 521 is turned by both ends
Dynamic to be mounted on cabinet, circular cone entity 521 is spatially positioned in the middle control region of the inside of taper cone barrel 511, and floating frame 546 is from circle
It is passed through between cone cylinder 511 and circular cone entity 521, the equal core components of rotor casing 541 are needed in taper cone barrel 511 and circular cone entity 521
Between, the equal matching components of guide rod 543, which can extend to outside taper cone barrel 511 and circular cone entity 521, facilitates fixed and arrangement.
In one embodiment, the connection type of floating platform 545 and cabinet are as follows:
Cabinet is equipped with the orientation elastic component for installing floating platform 545, and orientation elastic component can be in floating platform 545
Floating direction on stress and deformation and in the other direction keep rigidity；
Or
Cabinet is equipped with the electrical control mechanism for controlling floating platform 545.
What the direction of motion of driving member 53 referred to is the rotating direction of rotor 531.Floating platform 545 needs precise positioning to turn
Position of the son 531 on operating path, therefore floating platform 545 needs to keep rigidity on operating path direction, floats simultaneously
Therefore the deformation that platform 545 needs to discharge rotor casing 541 wants that certain distance can be moved in the direction of motion of driving member 53, because
It is unnecessary or harmful that this orientation elastic component can eliminate floating platform 545 while meeting the movement of floating platform 545 and needing
Movement.When specific implementation, the sliding slot for opening up 545 direction of motion of floating platform on cabinet can choose, turn
The fixed rotating shaft of disk 544 is slidably mounted in the sliding slot, and sliding slot consolidates fixed rotating shaft in the both ends of glide direction setting elastic component
It is fixed, it realizes to float and fix.The simple and stable structure of the benefit of the program.
Or floating platform 545 can also be fixed by automatically controlled form, such as turntable 544 is fixed on electromagnetism push rod
Fixed rotating shaft, adjust automatically is wanted according to position required for floating platform 545, the benefit of the program is that by accurately
Position is adjusted.
In one embodiment, driving member 53 has constant-speed ratio state, in the direction of motion of constant-speed ratio state lower transmission component 53
Vertical with the plane where the first bus 514 and the second bus 523, driving band 542 is for driving driving member 53 to exit constant-speed ratio
State.
So-called constant-speed ratio state is exactly the state that transmission ratio determines, when the direction of motion and the first bus 514 of rotor 531
When vertical with the plane where the second bus 523, transmission ratio is determined.When driving band 542 pulls driving member 53 along operating path
When movement, the rotating direction of rotor 531 and operating path generate angle, that is, exit constant-speed ratio state, and the rolling of rotor 531 can be
Component motion is generated on operating path, and the movement of speed change occurs.
In one embodiment, floating platform 545 further includes the limited block 5451 for limiting driving 542 movement travel of band,
Limited block 5451 is mounted on driving band 542 and moves with driving band 542, when driving band 542 to move to design range
Limited block 5451 offsets with floating frame 546.
Driving member 53 cannot exceed two ranges when moving on the first acting surface 513 and the second acting surface 522, therefore
Locating part is needed, and the first acting surface 513 and the second acting surface 522 are the state in high speed rotation, in the knot of setting limit above
Structure needs to meet a series of harsh conditions such as dynamic balancing, is unfavorable for reducing production manufacturing cost.Therefore limited block 5451
Setting is on driving band 542 for offseting with floating frame 546.In actual selection, driving band 542 be can choose to float
The design of 546 upper rotary of frame, revolution on one side for driving rotor casing 541, another side is for installing limited block 5451, when turning
When sub- case 541 moves to both ends, the correspondence of limited block 5451 moves to other both ends, to realize limit function.
In use:
When constant-speed ratio operation, the rotating direction of rotor 531 is vertical with operating path holding, rotor casing 541 and rotor 531
Rotating direction it is parallel.Input shaft 52 drives rotor 531 to drive 511 output power of taper cone barrel by circular cone entity 521 at this time.
When needing to change transmission ratio, driving band 542 can pull the second sliding block 5412 of rotor casing 541 along floating lever
5461 move, because hingedly misplacing between 5411 meeting of the first sliding block and the second sliding block 5412 on guide rod 543, this
When rotor casing 541 shape of zigzag is become like from straight line, i.e. the rotating direction of rotor 531 is no longer kept with operating path
Vertically, at this time because the overall length of rotor casing 541 is constant, the spacing meeting between the guide rod 543 and floating lever 5461 of rigidity
There is the trend to become smaller, which passes through the movement of floating lever 5461, the i.e. mass motion of floating frame 546, release.
After the rotating direction of rotor 531 no longer keeps vertical with operating path, the rolling of rotor 531 can be on operating path
Component motion is generated, while the component motion not on working motion path can pass through rotor because of the guide rod 543 of rigidity
531 itself rolling discharge.Therefore it realizes that rotor 531 moves on operating path under the action of driving band 542, changes revolving speed
Than.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In all possible combination of each technical characteristic be all described, if however, there is no contradiction in the combination of these technical features,
It all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of stepless speed change device characterized by comprising
The lateral surface of output shaft, the taper cone barrel including inner hollow, the taper cone barrel is used for output driving power, the taper cone barrel
Medial surface is the first acting surface；
Input shaft, the circular cone entity of the inside including the taper cone barrel is arranged in, the circular conical surface of the circular cone entity are the second work
With face, the circular cone of second acting surface is towards the circular cone with first acting surface towards on the contrary, first acting surface
Second bus of the first bus and the second acting surface is parallel；
Driving member, positioned at the input shaft axis in the radial direction and transmission connection in first acting surface and second make
With between face；
Shift drive mechanism, for driving the driving member to move along operating path to change the input shaft and the output shaft
Between transmission ratio, the operating path extends along first bus and the second generatrix direction.
2. stepless speed change device according to claim 1, which is characterized in that the driving member be and first acting surface
With the rotor of the second effect surface wearing drive.
3. stepless speed change device according to claim 2, which is characterized in that there are two the rotor is set and phase mutual friction passes
Dynamic, two rotors act on surface wearing drive with first acting surface and second respectively.
4. stepless speed change device according to claim 1, which is characterized in that the shift drive mechanism includes:
Rotor casing, for limiting and guiding position of the rotor on the operating path；
Band is driven, is fixed with the rotor casing and for driving the rotor casing to change the position on the operating path；
Guide rod, for guiding the rotor casing to move along the operating path；
Driving source, for providing driving force for the driving band.
5. stepless speed change device according to claim 1, which is characterized in that the shift drive mechanism includes rigid leads
To bar and floating platform, the floating platform includes:
Rotor casing, for limiting and guiding position of the rotor on the operating path and be hinged at both ends can be free
The first sliding block and the second sliding block swung, first sliding block are slidably matched with the guide rod；
Floating frame, including the floating lever being slidably matched with second sliding block and the driving band being mounted on the floating lever,
The driving band is for driving second sliding block to move along the floating lever；
Driving source, for providing driving force for the driving band.
6. stepless speed change device according to claim 4 or 5, which is characterized in that the rotor is installed on institute by shaft
Rotor casing is stated, the shaft is arranged in the strip-shaped hole on the rotor casing, and two rotors can be along the strip-shaped hole phase
It mutually draws close or separate.
7. stepless speed change device according to claim 5, which is characterized in that the stepless speed change device further includes cabinet,
The input shaft is rotatably installed on the cabinet, and the circular cone entity is housed in the cabinet；The shift drive mechanism
It is arranged around the circular cone entity, wherein the guide rod is fixed with the cabinet, the floating frame is movably arranged on institute
It states on cabinet；The taper cone barrel be rotatably installed in the cabinet and by internal hollow region accommodate the circular cone entity and
Shift drive mechanism, the rotor are between the circular cone entity and taper cone barrel and offset with the two.
8. stepless speed change device according to claim 7, which is characterized in that the connection of the floating platform and the cabinet
Mode are as follows:
The cabinet is equipped with the orientation elastic component for installing the floating platform, and the orientation elastic component can be described floating
On the floating direction of moving platform stress and deformation and in the other direction keep rigidity；
Or
The cabinet is equipped with the electrical control mechanism for controlling the floating platform.
9. stepless speed change device according to claim 5, which is characterized in that the driving member has constant-speed ratio state,
The direction of motion of the driving member is vertical with the plane where first bus and the second bus under the constant-speed ratio state, institute
Driving band is stated for driving the driving member to exit the constant-speed ratio state.
10. stepless speed change device according to claim 5, which is characterized in that the floating platform further includes for limiting
The limited block of the driving with movement travel, the limited block is mounted on the driving and takes and move with driving band, when described
Driving band moves to limited block when designing range and offsets with the floating frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910249533.6A CN110043623B (en) | 2019-03-29 | 2019-03-29 | Stepless speed change device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910249533.6A CN110043623B (en) | 2019-03-29 | 2019-03-29 | Stepless speed change device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110043623A true CN110043623A (en) | 2019-07-23 |
| CN110043623B CN110043623B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910249533.6A Active CN110043623B (en) | 2019-03-29 | 2019-03-29 | Stepless speed change device |
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| CN (1) | CN110043623B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191207878A (en) * | 1912-04-01 | 1913-03-06 | Charles Bertram Liddell | Improvements in Transmission Gear for Motor Cars and the like. |
| DE10227949A1 (en) * | 2002-06-18 | 2004-04-15 | Stefan Matuzic | Infinite three-wheeled friction gearing has inner cone and funnel-shaped cone body and one piece gearing system held by hydraulic contact pressure with cone wheels transferring rotary movement |
| JP2006112511A (en) * | 2004-10-14 | 2006-04-27 | Nissan Motor Co Ltd | Stepless speed change device |
| CN1862056A (en) * | 2005-05-09 | 2006-11-15 | 范泽林 | Automatic gear for automobile |
| DE102013020451B3 (en) * | 2013-12-06 | 2015-04-16 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Infinitely variable transmission |
| CN105889439A (en) * | 2016-06-23 | 2016-08-24 | 郭嘉辉 | Conical disc type continuously variable transmission |
| CN205715507U (en) * | 2016-06-23 | 2016-11-23 | 郭嘉辉 | A kind of cone disk type buncher |
| CN209943451U (en) * | 2019-03-29 | 2020-01-14 | 杭州莱本科技有限公司 | Stepless speed change device |
-
2019
- 2019-03-29 CN CN201910249533.6A patent/CN110043623B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191207878A (en) * | 1912-04-01 | 1913-03-06 | Charles Bertram Liddell | Improvements in Transmission Gear for Motor Cars and the like. |
| DE10227949A1 (en) * | 2002-06-18 | 2004-04-15 | Stefan Matuzic | Infinite three-wheeled friction gearing has inner cone and funnel-shaped cone body and one piece gearing system held by hydraulic contact pressure with cone wheels transferring rotary movement |
| JP2006112511A (en) * | 2004-10-14 | 2006-04-27 | Nissan Motor Co Ltd | Stepless speed change device |
| CN1862056A (en) * | 2005-05-09 | 2006-11-15 | 范泽林 | Automatic gear for automobile |
| DE102013020451B3 (en) * | 2013-12-06 | 2015-04-16 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Infinitely variable transmission |
| CN105889439A (en) * | 2016-06-23 | 2016-08-24 | 郭嘉辉 | Conical disc type continuously variable transmission |
| CN205715507U (en) * | 2016-06-23 | 2016-11-23 | 郭嘉辉 | A kind of cone disk type buncher |
| CN209943451U (en) * | 2019-03-29 | 2020-01-14 | 杭州莱本科技有限公司 | Stepless speed change device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110043623B (en) | 2024-03-15 |
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