WO2017206951A1

WO2017206951A1 - Stepless speed change device

Info

Publication number: WO2017206951A1
Application number: PCT/CN2017/087022
Authority: WO
Inventors: 段海亮
Original assignee: 段海亮
Priority date: 2016-06-03
Filing date: 2017-06-02
Publication date: 2017-12-07
Also published as: CN105864371B; CN105864371A

Abstract

Provided is a stepless speed change device. A speed regulating mechanism (2) comprises a drive wheel axle (21) and a driven wheel axle (22). A drive axle of the drive wheel axle (21) is provided with at least two fixed wheels (24). A driven axle on the driven wheel axle (22) is provided with one-way wheels (25) conjugated with the fixed wheels (24). In any pair of the conjugated fixed wheels (24) or the one-way wheels (25), a tooth profile between a same root circle and addendum circle is a continuously varying involute in a tooth width direction. Wheel teeth of adjacent fixed wheels (24) are arranged in an offset manner such that two or more sets of conjugated gears achieve alternate meshing transmission. A predetermined axial-direction force is applied to the drive wheel axle (21) or the driven wheel axle (22), such that the fixed wheel (24) and the one-way wheel (25) are axially displaced relative to one another, the conjugated gears engage at areas with different base circle diameters, and the transmission ratio varies along with the continuous change in the corresponding base circle diameter. The stepless speed change device is stable in power transfer and avoids slippage.

Description

Instruction manual Name of invention: Infinitely variable speed device

Technical field

[0001] The present invention relates to the field of shifting mechanisms, and more particularly to an infinitely variable transmission.

Background technique

[0002] A continuously variable transmission is a type of automatic transmission in a transmission. The continuously variable transmission utilizes a belt and a main and driven wheel whose working diameter is variable to cooperate to transmit power, thereby achieving continuous change of the transmission ratio. The structure of the existing stepless transmission does not use the conventional gear transmission structure, but drives the two tapered belt pulleys of variable diameter with the transmission belt. The outer diameter of the pulley is steplessly changed by the oil pressure. However, the stepless transmission of this type has a small force, limited torque, easy slippage, and unstable power transmission. The gear transmission has high torque and high efficiency, but it cannot achieve stepless speed change.

technical problem

The invention provides an infinitely variable transmission device, which solves the problems of low force, limited torque and easy slippage of the prior art stepless transmission.

Problem solution

Technical solution

[0004] The technical solution of the present invention is implemented as follows:

[0005] A stepless speed change device, the speed control mechanism of the stepless speed change device comprises: a drive axle and a driven axle, wherein at least two fixed wheels are disposed on the drive shaft of the drive axle, and the driven axle of the driven axle is disposed with The unidirectional wheel of the fixed wheel conjugate, the pair of conjugated fixed wheel or unidirectional wheel has a continuously different gradual line in the tooth width direction between the same root circle and the addendum circle;

[0006] The misalignment of the teeth of the adjacent fixed wheels is such that two or more conjugate gears are alternately meshed and transmitted; a predetermined axial force acts on the driving axle or the driven axle, the fixed wheel and the one-way The wheel produces an axial relative displacement, the conjugate gears mesh in different base circle diameter regions, and the gear ratio changes as the diameter of the corresponding base circle changes continuously.

[0007] Preferably, in the stepless speed change device, the teeth of the fixed wheel have the same tooth root thickness in the tooth width direction, and the tooth top thickness is gradually thinned from the one end of the base circle to the end of the base circle. , the teeth of the one-way wheel are in the tooth width The thickness of the tooth tip is uniform, and the tooth root thickness is gradually thickened from one end of the base circle to the end of the base circle, and one end of the thick tooth tip of the fixed wheel corresponds to one end of the thin tooth root of the one-way wheel; or

[0008] the teeth of the fixed wheel have the same tooth top thickness in the tooth width direction, and the tooth root thickness gradually becomes thicker from the end of the base circle to the end of the base circle; the teeth of the one-way wheel are in the tooth width direction The root thickness is uniform, and the tooth tip thickness is gradually thinned from one end of the base circle to the end of the base circle, and one end of the thick tooth root of the fixed wheel corresponds to one end of the thin tooth tip of the one-way wheel.

[0009] Preferably, in the stepless speed change device, at least two fixed wheels are disposed on a driven shaft of the driven wheel shaft; and a fixed shaft and a driven shaft are fixed on the driving shaft of the driving wheel shaft. At least two one-way wheels conjugated to the wheel, a base pitch of the fixed wheel on the drive shaft and a one-way wheel on the driven shaft, and a fixed on the one-way wheel and the driven shaft on the drive shaft The base pitch of the wheel is inconsistent; the ratio of the base circle diameter of the fixed wheel on the drive shaft to the one-way wheel on the driven shaft at the meshing point is less than or equal to the fixed wheel on the one-way wheel and the driven shaft on the drive shaft. The base circle diameter ratio of the meshing point.

[0010] Preferably, in the stepless speed change device, the speed governing mechanism further includes a set of planetary gear assemblies, the planet carrier of the planetary gear assembly is meshed with the driven shaft, and the ring gear is coupled with the clutch gear. a mechanism engaging connection, when a predetermined force 吋 acts on the driven axle, the engaging wheel engaged with the carrier on the driven shaft is connected with the driven shaft through a sliding key; when the driving axle acts on a predetermined The force 吋, the engaging wheel on the driven shaft that meshes with the carrier is fixedly connected to the driven shaft.

[0011] Preferably, in the stepless speed change device, the gradual change line changes according to a continuous change in diameter of a base circle distributed by an exponential function having a base number and a base number of not 1.

[0012] Preferably, in the stepless transmission device, any one of the one-way wheel or the fixed wheel includes a working tooth profile and a positioning tooth profile, and the working tooth profiles of all the tooth teeth are located on the same side of the gear teeth. A positioning protrusion on a fixed wheel of the fixed wheel extends a positioning protrusion to the adjacent working tooth profile, and the thickness of the protrusion of the positioning protrusion becomes thicker as the base circle of the positioning tooth profile becomes larger, so that The next pair of working tooth profiles and the jaws are engaged.

[0013] Preferably, the stepless speed change device further includes an acceleration mechanism including a plurality of sets of continuously driven planetary gear members, a carrier of the first set of planetary gear members and a sun of the planetary gear assembly The wheel is rigidly coupled, the planet carrier of the latter set of planetary gear members is rigidly coupled to the sun gear of the previous set of planetary gear members, the ring gears of all of the planetary gear members are rigidly coupled, and all of the ring gears are fixed.

[0014] Preferably, in the stepless speed change device, the working tooth profile of any fixed wheel and the positioning tooth profile The gradual squall line is on a straight line parallel to the axis at the root circle or the top circle. All the grading lines of the working tooth profile and the positioning tooth profile of any one of the unidirectional wheels are at the addendum circle or the root circle. They are all on a straight line parallel to the axis.

[0015] Preferably, in the stepless transmission device, the clutch mechanism includes a clutch, a hollow shaft and a solid shaft, and the flywheel and the friction plate of the clutch are respectively connected with the hollow shaft and the solid shaft; Inside the hollow shaft, and the outer diameter of the solid shaft is smaller than the inner diameter of the hollow shaft; the hollow shaft is meshed with the driving shaft, and the solid shaft is meshed with the ring gear of the planetary gear assembly; Acting a predetermined force 吋, the engaging wheel on the driving shaft meshing with the hollow shaft is connected with the driving shaft through a sliding key, and when a predetermined force 吋 acts on the driven wheel shaft, the The meshing wheel engaged by the hollow shaft is fixedly connected to the driving shaft.

[0016] Preferably, in the stepless transmission device, a bearing is disposed between adjacent one-way wheels, a fixed wheel and a one-way wheel on the driving shaft; adjacent to the driven shaft Bearings are provided between the one-way wheel, the fixed wheel and the one-way wheel.

Advantageous effects of the invention

Beneficial effect

[0017] The beneficial effects of the present invention are: The infinitely variable transmission device of the present invention exerts a predetermined axial force on the driving axle or the driven axle, and the base of the tapered teeth of the conjugate gear is tapered. The diameter is continuously changed from one end to the other by an exponential function of the same bottom, so that the transmission ratio continuously changes with the change of the diameter of the corresponding base circle; the multiple sets of conjugate gears alternately transmit and transmit power, so that the The driven shaft of the moving axle is in a continuously driven or defined state. The infinitely variable transmission device of the present invention realizes continuous change of the transmission ratio and avoids slipping on the basis of realizing high torque, high efficiency, and stable power transmission; moreover, the gear transmission structure is used to increase the force and adjust the torque.

Brief description of the drawing

DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work. 1 is a schematic structural view of the present invention;

Figure 2 is a front elevational view of the fixed wheel of Figure 1;

3 is a front view of the one-way wheel shown in FIG. 1;

[0022] FIG. 4 is a comparison of the diameters of the base circle from one end to the other end of the conjugated fixed wheel and the unidirectional wheel of the conjugated fixed wheel and the unidirectional wheel in the tooth width direction from large to small. Figure

5 is a schematic structural view of the teeth of the fixed wheel shown in FIG. 2;

6 is a schematic structural view of the teeth of the one-way wheel shown in FIG. 3.

[0025] In the figure:

[0026] 1, clutch mechanism; 2, speed governing mechanism; 3, acceleration mechanism; 11, clutch; 12, hollow shaft; 13, solid shaft; 21, drive axle; 22, driven axle; 23, planetary gear assembly; 24, fixed wheel; 25, one-way wheel; 26, positioning convex; 27, bearing; 28, fixed wheel teeth; 29, one-way wheel teeth.

Embodiments of the invention

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

[0028] The infinitely variable transmission device shown in FIG. 1 includes a clutch mechanism 1, a speed governing mechanism 2, and an acceleration mechanism 3.

[0029] Embodiment: As shown in FIG. 1 to FIG. 6, the speed governing mechanism 2 includes: a driving axle 21, a driven axle 22 and a set of planetary gear assemblies 23, and at least two fixings are arranged on the driving shaft of the driving axle 21 The wheel 24, the driven shaft of the driven axle 2 2 is provided with a unidirectional wheel 25 conjugated with the fixed wheel, and any pair of conjugated fixed wheels 24 or unidirectional wheels 25 are at the same root circle and top The tooth profile between the circles is a continuous different gradual line along the tooth width direction; the teeth of the adjacent fixed wheel are misaligned so as to alternately mesh the transmission between the two sets of conjugate gears; The predetermined axial force acts on the moving axle, the fixed wheel and the one-way produce axial relative displacement, the conjugate gear meshes in different base circle diameter regions, and the transmission ratio changes with the continuous change of the diameter of the corresponding base circle. Speed control is achieved.

[0030] On the basis of the above embodiment, as shown in FIG. 1, the clutch mechanism 1 includes a clutch 11, a hollow shaft 12 and a solid shaft 13, and the flywheel and the friction plate of the clutch 11 are connected to the hollow shaft 12 and the solid shaft 13, respectively. Solid shaft 13 The hollow shaft 12 is disposed inside the hollow shaft 12, and the outer diameter of the solid shaft is smaller than the inner diameter of the hollow shaft; the hollow shaft is meshed with the driving shaft of the driving axle 21; the solid shaft 13 is meshed with the ring gear of the planetary gear assembly 23, when the driven axle Acting a predetermined force 吋, the engaging wheel engaged with the planet carrier on the driven shaft and the driven shaft are connected by a sliding key, and the engaging wheel of the driving shaft engaged with the hollow shaft is fixedly connected with the driving shaft; The predetermined force is applied, and the engaging wheel engaged with the hollow shaft on the driving shaft is connected with the driving shaft through a sliding key, and the engaging wheel engaged with the carrier on the driven shaft is fixedly connected with the driven shaft.

[0031] On the basis of the above embodiment, the teeth of the fixed wheel on the driving shaft have the same tooth root thickness in the tooth width direction, and the tooth top thickness is gradually thinned from the one end of the base circle to the end of the base circle; The teeth of the one-way wheel on the moving shaft are uniform in thickness in the tooth width direction, and the tooth root thickness is gradually thickened from one end of the base circle to the end of the base circle, and the thick tooth top of the fixed wheel on the driving shaft One end corresponds to one end of the thin tooth root of the one-way wheel to avoid interference of the conjugate gear. Alternatively, the teeth of the fixed wheel have the same tooth thickness in the tooth width direction, and the root thickness gradually becomes thicker from the end of the base circle to the end of the base circle; the tooth root thickness of the one-way wheel tooth is uniform in the tooth width direction The top of the tooth is gradually thinned from the end of the base circle to the end of the base circle, and one end of the thick tooth root of the fixed wheel corresponds to the end of the thin tooth tip of the one-way wheel to avoid interference of the conjugate gear.

[0032] On the basis of the above embodiment, in order to adjust the deceleration of the speed governing mechanism, at least two fixed wheels are disposed on the driven shaft of the driven axle 22; the driving shaft of the driving axle 21 is disposed on the driven shaft The fixed wheel is conjugated to at least two one-way wheels. In order to avoid axial movement of the driving axle or the driven axle, the fixed wheel on the driving shaft and the one-way wheel on the driven shaft, the one-way wheel on the driving shaft and the fixed wheel on the driven shaft interfere with each other on the driving shaft. The base circle pitch of the fixed wheel and the one-way wheel on the driven shaft does not coincide with the base circle pitch of the fixed wheel on the drive shaft and the fixed wheel on the driven shaft, that is, the fixed wheel and the driven wheel on the drive shaft When the one-way wheel on the shaft has a small difference in the pitch of the base circle in the meshing area, the difference between the fixed circle on the driven shaft and the one-way wheel on the driven shaft in the meshing area is larger; the opposite is true. Where the diameter of the base circle of a gear is large, the base circumference is long, the base circle diameter is small, the base circumference is long, and the number of teeth is the same regardless of whether the circumference is long or short, so the base circle diameter is large, and the base circle pitch is large. Where the base circle diameter is small, the base circle pitch is small; in order to avoid the rotation 吋, the rotational speeds of the meshing gears are inconsistent and interfere with each other, and the base circle of the fixed wheel on the drive shaft and the one-way wheel on the driven shaft at the meshing point The diameter ratio cannot be greater than the ratio of the base circle diameter at the meshing point of the fixed wheel on the drive shaft and the fixed wheel on the driven shaft. That is, when the driving shaft is actively rotated, the fixed wheel on the driving shaft transmits the rotational speed to the one-way wheel on the driven shaft, and the one-way wheel on the driven shaft drives the driven shaft, and the driven The shaft drives the fixed wheel on the rotating wheel, and the fixed wheel on the driven shaft transmits the rotational speed to the one-way wheel on the driving shaft. The speed of the one-way wheel on the driving shaft cannot be greater than the original speed of the driving shaft. The gradual entanglement of the tooth profile of either pair of conjugated fixed or unidirectional wheels varies according to the continuous change in the diameter of the base circle of the corresponding exponential function with the same number of bases and a base number other than one. The diameter of the base circle varies according to the exponential function of the same base, and the ratio of the base circle diameter of the conjugate gear is uniform.

[0033] On the basis of the above embodiment, in order to increase the stability of the axial movement of the fixed wheel on the driving axle, the adjacent one-way wheel 27, the fixed wheel 24 and the one-way wheel 27 on the driving shaft are disposed between Bearing 28; bearing 28 is disposed between adjacent one-way wheels, fixed wheels and one-way wheels on the driven shaft.

[0034] Based on the above embodiment, the acceleration mechanism 3 includes a plurality of sets of continuously driven planetary gear planetary members. The planet carrier of the first set of planetary gear members is rigidly coupled to the sun gear of the planetary gear assembly, the planet carrier of the latter set of planetary gear members is rigidly coupled to the sun gear of the previous set of planetary gear members, and the ring gears of all of the planetary gear members are rigid Connected, and all ring gears are fixed.

[0035] On the basis of the above embodiment, as shown in FIG. 5, any one of the one-way wheel or the fixed wheel includes a working tooth profile and a positioning tooth profile, and the working tooth profiles of all the tooth teeth are located on the gear teeth. On the same side of the positioning gear on each of the fixed wheels 24, a positioning protrusion 26 is extended to the adjacent working tooth profile, and the thickness of the protrusion of the positioning protrusion increases with the base circle of the positioning tooth profile. Thicken to engage the next pair of working tooth profiles and the cymbal. All the grading lines of the working tooth profile and the positioning tooth profile of any fixed wheel are on a straight line parallel to the axis at the root circle or the tip circle, the working tooth profile and the positioning tooth profile of any one of the unidirectional wheels All the gradual twist lines are on a straight line parallel to the axis at the tip circle or the root circle, so that the conjugate gear is engaged with the yoke, and there is a large contact area in the tooth width direction, thereby increasing the transmitted power; It facilitates the axial movement of the conjugate gear and realizes the speed adjustment quickly. When a one-way wheel decelerates under the action of the positioning tooth profile, the other one-way wheel on the coaxial continues to act on the shaft.

[0036] As shown in FIG. 4, the acceleration process of the speed governing mechanism is: when the driving axle and the driven axle rotate at a certain transmission ratio, along the small base circle direction or the driven axle along the large base on the driving axle The circular direction acts on the predetermined axial force. The fixed wheel of the driving axle is axially displaced with respect to the one-way wheel of the driven axle. The moving wheel on the driving shaft and the one-way wheel on the driven shaft are in the meshing region. The diameter of the base circle becomes larger from small to large, the fixed wheel speed on the drive shaft does not change, the speed of the one-way wheel on the driven shaft is increased, and the one-way wheel drives the driven shaft to accelerate the rotation speed. At the same time, the axial direction of the one-way wheel of the driving axle relative to the fixed wheel of the driven axle Although the rotational speed of the fixed wheel on the driven shaft and the driven shaft is increased, the base wheel on the driving shaft and the fixed wheel on the driven shaft are in the base circle of the meshing area after the driving axle or the driven axle moves. The diameter ratio also increases from small to large, and the one-way wheel speed on the driving axle does not change, further accelerating.

[0037] The speed reduction mechanism of the speed governing mechanism is: when the driving axle and the driven axle rotate according to a certain transmission ratio, a predetermined axis acts on the driving axle along a direction of a large base circle or a direction of a small base circle on the driven axle To the force, the unidirectional wheel of the driving axle is axially displaced relative to the fixed wheel of the driven axle, and the ratio of the base circle diameter of the unidirectional wheel on the driving shaft and the fixed wheel on the driven shaft in the meshing region is larger. Smaller, the one-way wheel on the drive shaft cannot be speeded up under the limit of the drive shaft. The fixed wheel on the driven shaft can only slow down. The fixed wheel drives the driven shaft to slow down the speed. At the same time, the drive axle is fixed. The wheel is also axially displaced with respect to the one-way wheel of the driven axle. Although the fixed wheel speed on the driven axle and the driven axle is slowed, the fixed axle and the slave on the drive axle are moved after the driving axle or the driven axle moves. The base circle diameter ratio of the unidirectional wheel on the moving shaft is also changed from large to small, and the unidirectional wheel rotation speed on the driven wheel shaft is constant, and the deceleration process is realized.

[0038] During the speed regulation process, only a predetermined axial force is applied to the driving axle or the driven axle, and the fixed axle and the one-way wheel of the driving axle and its axle are opposite to the driven axle and its axle. The axial direction of the one-way wheel and the fixed wheel, the fixed wheel and the one-way wheel of the driven wheel axle and its shaft will be axially displaced relative to the one-way wheel and the fixed wheel of the driving axle and its shaft; The applied force is less than the predetermined axial force 吋, and the fixed and unidirectional wheels on the drive shaft rotate only on the drive shaft; the fixed and unidirectional wheels on the driven shaft only rotate on the driven shaft.

[0039] The meshing process of the fixed wheel and the one-way wheel: any one of the fixed wheel drives and the corresponding one-way wheel rotates, so that the one-way wheel drives the axis where the wheel is rotated or the axis of the one-way wheel limits the one-way wheel rotation , thereby limiting the rotation of the fixed wheel. The number of teeth of any one of the fixed or one-way wheels is constant. The diameter of the base circle from one end to the other end of the fixed wheel or the one-way wheel is continuously changed, and the base circumference is also continuously changed. The circular pitch is also continuously variable, and the continuous change of the base pitch is achieved by the continuous change of the tapered line of the tooth profile.

[0040] a pair of conjugated fixed wheel and one-way wheel meshing process: the fixed wheel drives the one-way wheel to rotate, the meshing 吋, the base circular pitch of the one-way wheel can not be greater than the base circular pitch of the fixed wheel, when one-way The base circle pitch of the wheel and the fixed wheel in the meshing area is not equal, and the base circle pitch of the one-way wheel is smaller than the base circle pitch of the fixed wheel. After the working tooth profile of the fixed wheel and the working tooth profile of the one-way wheel are disengaged from the actual meshing point, the next working tooth profile is fixed The base circle pitch of the wheel is larger than the base circle pitch of the one-way wheel and cannot be meshed; since the positioning tooth profile of the fixed wheel and the one-way wheel is reverse meshed with respect to the working tooth profile, the positioning of the positioning tooth profile on the fixed wheel The convex tooth begins to interfere with the positioning tooth profile of the one-way wheel to continue to rotate at a constant speed, so that the one-way wheel is decelerated and rotated; after the one-way wheel is decelerated, the next working tooth profile on the one-way wheel and the next working tooth profile on the fixed wheel are meshed early. , the fixed wheel continues to drive the one-way wheel to continue to rotate.

[0041] Engagement process of multiple sets of conjugate gear continuous transmission: The fixed wheel drives the one-way wheel rotation, the base circle pitch of the fixed wheel and the base circle pitch of the one-way wheel are equal, and the single conjugate gear can achieve continuous meshing ; The base circle of the fixed wheel and the one-way wheel are not equal to each other, and the single fixed wheel cannot realize continuous driving and its corresponding one-way wheel rotation. The misalignment of the teeth of a plurality of fixed wheels on the same shaft, the conjugate gears are not disengaged from the same, there is always a set of conjugate gears that can continue to drive the one-way wheel rotation, and the rotating one-way wheel can drive the axis Rotate continuously or under the speed limit of the axis where the one-way wheel is located.

[0042] In the speed regulation process of the speed governing mechanism, after the rotational speed of the driven shaft changes, the rotational speed difference between the planet carrier and the ring gear of the planetary gear assembly changes, and the sun gear of the planetary gear assembly realizes a large rotational speed change, further realizing Speed regulation; the ring gear of the planetary gear assembly and the planet carrier have a certain speed difference, the sun gear has a speed, and when the speed of the clutch mechanism becomes faster, the difference between the ring gear of the planetary gear assembly and the carrier is also increased, the sun gear The speed is also faster. When the clutch is disengaged, the sun gear of the planetary gear assembly is free to rotate.

[0043] The shifting process of the infinitely variable transmission: the flywheel of the clutch mechanism transmits power to the driving axle of the governing mechanism through the hollow shaft, and then transmits the power to the driven shaft of the driven axle through the conjugate gear, and the driven axle will The power is transmitted to the planet carrier of the planetary gear assembly of the governing mechanism, and the ring gear of the planetary gear assembly is coupled with the friction plate of the clutch mechanism. When the rotational speed of the ring gear of the planetary gear assembly and the carrier reaches a certain rotational speed difference, The speed of the sun gear of the planetary gear assembly is output to the acceleration mechanism, and the speed is outputted by the acceleration mechanism. The speed difference between the ring gear and the carrier of the planetary gear assembly of the governor mechanism is different. The sun gear can be rotated forward, reversed and reversed to achieve forward, stop and reverse; when the clutch mechanism is broken, the planetary gear assembly The planet carrier and ring gear rotate freely.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are included in the spirit and principles of the present invention, should be included in Within the scope of protection of the present invention.

Claims

claims

[Claim 1] A continuously variable transmission device, characterized in that the speed regulating mechanism of the continuously variable transmission device includes: a driving axle and a driven axle, at least two fixed wheels are provided on the driving axle of the driving axle, and the driven axle of the driven axle is The moving shaft is provided with a one-way wheel that is conjugate to the above-mentioned fixed wheel. The tooth profile surface between any pair of conjugated fixed wheels or one-way wheels between the same tooth root circle and tooth tip circle is continuous along the tooth width direction. different asymptotes;

The gear teeth of adjacent fixed wheels are staggered, so that more than two groups of conjugate gears are alternately meshed for transmission; a predetermined axial force is exerted on the driving wheel shaft or the driven wheel shaft, and the fixed wheel and the one-way wheel generate an axis. To the relative displacement, the conjugate gear meshes in different base circle diameter areas, and the transmission ratio changes with the continuous change of the corresponding base circle diameter.

[Claim 2] The continuously variable transmission device according to claim 1, characterized in that the tooth root thickness of the fixed wheel teeth is consistent in the tooth width direction, and the tooth tip thickness is from the end with the larger base circle to the smaller end of the base circle. One end gradually becomes thinner, the gear teeth of the one-way wheel have the same tooth tip thickness in the tooth width direction, and the tooth root thickness gradually becomes thicker from the end with a larger base circle to the end with a smaller base circle. The thick tooth tip of the fixed wheel is One end corresponds to one end of the thin tooth root of the one-way wheel; or

The gear teeth of the fixed wheel have the same tip thickness in the tooth width direction, and the tooth root thickness gradually becomes thicker from the end with a larger base circle to the end with a smaller base circle; the gear teeth of the unidirectional wheel have the same tooth root thickness in the tooth width direction. , and the tooth tip thickness gradually becomes thinner from the end with a larger base circle to the end with a smaller base circle. One end of the thick tooth root of the fixed wheel corresponds to one end of the thin tooth tip of the one-way wheel.

[Claim 3] The continuously variable transmission device according to claim 1, characterized in that at least two fixed wheels are provided on the driven shaft of the driven wheel shaft; The fixed wheel on the driving shaft is conjugated to at least two one-way wheels. The base circle pitch of the fixed wheel on the driving shaft and the one-way wheel on the driven shaft is the same as that of the one-way wheel on the driving shaft and the driven shaft. The base circle pitch of the fixed wheel on the moving shaft is inconsistent;

The ratio of the base circle diameters of the fixed wheel on the driving shaft and the one-way wheel on the driven shaft at the meshing point is less than or equal to the ratio of the base circle diameters of the one-way wheel on the driving shaft and the fixed wheel on the driven shaft at the meshing point.

[Claim 4] The continuously variable transmission device according to claim 1, characterized in that the speed regulating mechanism further It includes a set of planetary gear assemblies, the planet carrier of the planetary gear assembly is meshed with the driven shaft, the ring gear is meshed with a clutch mechanism, when a predetermined force acts on the driven wheel shaft, the driven shaft The meshing wheel on the driving shaft that meshes with the planet carrier and the driven shaft are connected through a feather key; when a predetermined force acts on the driving wheel shaft, the meshing wheel that meshes with the planet carrier on the driven shaft and the driven shaft Fixed shaft connection.

[Claim 5] The continuously variable transmission device according to claim 1, wherein the asymptote changes according to the continuous change in the diameter of the corresponding base circle of an exponential function distribution with the same base and a base other than 1. .

[Claim 6] The continuously variable transmission device according to claim 1, characterized in that any gear tooth of any one-way wheel or fixed wheel includes a working tooth profile and a positioning tooth profile, and the working tooth profiles of all gear teeth are located at On the same side of the gear teeth; a positioning protrusion extends from the positioning tooth profile on any fixed wheel to the adjacent working tooth profile. The thickness of the positioning protrusion increases as the base circle of the positioning tooth profile becomes larger. Thicker to allow the next pair of working tooth profiles to mesh at the right time.

[Claim 7] The continuously variable transmission device according to claim 1, further comprising an acceleration mechanism

, the acceleration mechanism includes multiple sets of continuously driven planetary gear components, the planet carrier of the first set of planetary gear components is rigidly connected to the sun gear of the planetary gear assembly, and the planet carrier of the latter set of planetary gear components is connected to the previous set of planetary gears. The sun gear of the component is rigidly connected, the ring gears of all planetary gear components are rigidly connected, and all the ring gears are fixed.

[Claim 8] The continuously variable transmission device according to claim 1, characterized in that all the involute lines of the working tooth profile and the positioning tooth profile of any fixed wheel are aligned with each other at the tooth root circle or the tooth addendum circle. On a straight line parallel to the axis, all the involute lines of the working tooth profile and positioning tooth profile of any one-way wheel are on a straight line parallel to the axis at the tooth tip circle or tooth root circle.

[Claim 9] The continuously variable transmission device according to claim 4, wherein the clutch mechanism includes a clutch, a hollow shaft and a solid shaft, and the flywheel and friction plate of the clutch are connected to the hollow shaft and the solid shaft respectively; The solid shaft is arranged inside the hollow shaft, and the outer diameter of the solid shaft is smaller than the inner diameter of the hollow shaft; the hollow shaft is meshed with the drive shaft, and the solid shaft is meshed with the ring gear of the planetary gear assembly; When a predetermined force acts on the driving wheel shaft, the meshing wheel on the driving shaft that meshes with the hollow shaft is connected to the driving shaft through a feather key. Then, when a predetermined force acts on the driven wheel shaft, the meshing wheel on the driving shaft that meshes with the hollow shaft is fixedly connected to the driving shaft.

[Claim 10] The continuously variable transmission device according to claim 4, characterized in that, bearings are provided between adjacent one-way wheels, fixed wheels and one-way wheels on the driving shaft; the driven shaft Bearings are provided between adjacent one-way wheels, fixed wheels and one-way wheels on the shaft.