阅读说明：本技术 一种机械式无级变速方法及装置 (Mechanical stepless speed change method and device ) 是由 韩喜胜 于 2021-08-27 设计创作，主要内容包括：一种机械式无级变速方法及装置。构造输出轴上多个可以自由循环或往复运动的机构,该机构是两个循环往复结构的合成,其中一个结构一直做循环或往复运动而另一个结构不做往复运动时,构造出相切但又互不干涉的曲面,推动一直做循环往复运动结构运转的机构与曲面的运动方向相同,但不同速,输出是推动一直做循环往复运动结构运转的机构与曲面产生叠加效果,此机构与曲面交替输出做功,调节在无输出时不做循环往复运动的结构,从而产生从零开始的无级变速。(A mechanical stepless speed change method and device. A plurality of mechanisms which can freely circulate or reciprocate on an output shaft are constructed, the mechanisms are the synthesis of two circulating and reciprocating structures, when one structure always performs circulating or reciprocating motion and the other structure does not perform reciprocating motion, curved surfaces which are tangent and do not interfere with each other are constructed, the mechanism which pushes the structure which always performs circulating and reciprocating motion has the same motion direction with the curved surfaces, but different speeds, the output is to push the mechanism which always performs circulating and reciprocating motion to generate a superposition effect with the curved surfaces, the mechanism and the curved surfaces alternately output work, and the structure which does not perform circulating and reciprocating motion when no output is adjusted, so that the stepless speed change from zero is generated.)

1. A mechanical stepless speed-changing method features that multiple mechanisms able to freely move cyclically or reciprocally are composed of two cyclically reciprocating mechanisms, one of which always moves cyclically or reciprocally while the other does not move reciprocally, to form tangent curved surfaces, and the other one moves in the same direction but at different speed.

2. The mechanical stepless speed change method according to claim 1, wherein a plurality of hollow gears 2 are connected to the output shaft at an angle, the gear shaft 1 is connected to the hollow gears 2 through a slide way, can slide up and down, and cannot generate rotational displacement, the eccentric circle 3 is connected to the gear shaft 1 through a chute to form linkage with the hollow gears 2, the hollow gears 2 are driven by the gear ring 7 to further drive the eccentric circle 3 linked with the gears 2 to rotate, and further the cyclic reciprocating effect of the eccentric circle 3 is generated, and it is not necessary that the gear 2 is driven by the gear ring 7 to further drive the eccentric circle 3, and the gear ring 7 is changed into a curved surface, and only the cyclic or reciprocating motion state on the output shaft needs to be realized.

3. The mechanical stepless speed change method according to claim 1, wherein the gear shaft 1 reciprocates up and down in the hollow gear 2, and the rotation speed of the eccentric circle 3 and the rotation speed of the hollow gear 2 generate relative acceleration and deceleration continuous motion effects, so that superposition of two cycles or reciprocating motions is realized to generate relative acceleration and deceleration continuous motion states.

4. A mechanical stepless speed change method according to claim 1, characterized in that when the gear ring 7 drives the hollow gear 2 to rotate, the eccentric circle 3 does not move relatively to the hollow gear 2, a rotating hyperboloid 6 is constructed, the hyperboloid 6 is always tangent to the eccentric circle 3 and does not interfere with the rotation of the eccentric circle 3, if the gear ring 7 is changed into a curved surface, the hyperboloid 6 can only remain an inner curved surface, the numbers of radians of the two curved surfaces are not equal, and when the eccentric circle does not reciprocate, the arcs do not interfere with each other.

5. The mechanical stepless speed change method according to claim 1, wherein the eccentric circle 3 is linked with the hollow gear 2 through the gear shaft 1, the eccentric circle 3 reciprocates to form a relative acceleration and deceleration continuous and continuous motion effect, and the gear shaft 1, the hollow gear 2 and the eccentric circle 3 can be applied to a rotary cylinder structure.

6. A mechanical stepless speed change method as claimed in claim 1, wherein the inner and outer surfaces of the hyperboloid 6 are not on the same plane, or are distributed on a plurality of planes, and the eccentric circle 3 has a two-layer or multi-layer structure, so as to ensure that the inner and outer surfaces can form a rolling effect when tangent to the hyperboloid 6.

Technical Field

The invention belongs to the field of stepless speed change, and relates to a purely mechanical stepless speed change method and a purely mechanical stepless speed change device.

Background

The transmission is a mechanism for changing the rotation speed and torque from the engine, and the cvt (continuously variable transmission) technology is a stepless speed change technology, which adopts a transmission belt and a main driven wheel with variable working diameter to cooperate to transmit power, and can realize continuous change of transmission ratio, thereby obtaining the best matching of the transmission system and the engine working condition. Common continuously variable transmissions are hydromechanical continuously variable transmissions and metal belt continuously variable transmissions (VDT-CVT). Infinitely variable speed automobiles are the main trend in the development of automobiles today. Automatic Transmissions (AT) required by the automobile industry in China all depend on import and are high in cost, and CVT transmissions are developed and produced by self in China, so that the market prospect is optimistic. .

Disclosure of Invention

The present invention is directed to a purely mechanical stepless speed change method and device to solve one or more of the above problems. The operation is simpler in the driving process, and the efficiency of the engine or the motor is further improved.

In order to realize the purpose, a plurality of mechanisms capable of freely circulating or reciprocating on an output shaft are constructed, the mechanisms are the synthesis of two circulating and reciprocating structures, when one structure always performs circulating or reciprocating motion and the other structure does not perform reciprocating motion, curved surfaces which are tangent and do not interfere with each other are constructed, the mechanism which pushes the structure which always performs circulating and reciprocating motion has the same motion direction with the curved surfaces, but different speeds, the output is to push the mechanism which always performs circulating and reciprocating motion to generate the superposition effect with the curved surfaces, the mechanism and the curved surfaces alternately output power, and the structure which does not perform circulating and reciprocating motion when no output is adjusted, so that the stepless speed change from zero is generated. As a further technical scheme, a plurality of circulating reciprocating mechanisms mounted on the output shaft are composed of a plurality of hollow gears, a gear shaft and a circle taking one point outside the gear shaft center as the center of the circle, namely an eccentric circle taking the gear shaft center as the rotation center. The hollow gears are respectively connected around the output shaft in an angle mode, two or more oblique grooves (not necessarily regular) are formed in the gear shaft and are connected with an eccentric circle, two or more rollers are arranged in the eccentric circle and inserted into the oblique surfaces on the gear shaft, the rollers can slide up and down in the oblique surfaces on the gear shaft, and when the eccentric circle slides up and down relative to the gear shaft, the eccentric circle can generate reciprocating rotary motion relative to the gears under the action of the oblique surfaces; meanwhile, two or more linear grooves are formed in the gear shaft and are connected with the gear, two or more rollers are arranged inside the gear, the gear shaft can slide up and down inside the gear, but does not generate relative rotary motion, when the gear is driven by the mechanism to rotate, the eccentric circle follows the gear to do circular motion, and meanwhile, when the mechanism drives the eccentric circle or the gear shaft to do reciprocating motion up and down, the eccentric circle can form a continuous circulating state with the rotating speed being accelerated and then decelerated relative to the box body.

When the gear rotates, the gear shaft and the eccentric circle are stationary relative to the gear, under a specific speed ratio, a rotating hyperboloid is made according to the motion state of the eccentric circle and rotates around the output shaft, the hyperboloid is tangent to two sides of the eccentric circle at the same time, and the rotation of the hyperboloid and the rotation of the eccentric circle keep tangent but do not interfere with each other. The inner surface and the outer surface of the hyperboloid are not on the same plane or distributed on a plurality of planes, and the eccentric circle is of a two-layer or multi-layer structure so as to ensure that the inner surface and the outer surface can form a rolling effect when tangent with the hyperboloid

At this time, the gear ring drives the gear to rotate, the hyperbola rotates in the same direction as the gear ring at the same time, but at different speeds, if the eccentric circle or the gear shaft starts to do up-and-down reciprocating motion, the rotating speed of the eccentric circle is enabled to generate continuous acceleration and then deceleration motion relative to the rotating speed of the gear, however, the track of the hyperboloid is the track under the condition that the rotating speed of the eccentric circle is the same as the rotating speed of the gear, so when the eccentric circle rotates towards the axis, the speed of the relative gear is increased, the hyperboloid blocks the motion of the eccentric circle, at this time, the gear ring drives the gear to revolve, namely output, when the eccentric circle moves away from the axis, the speed of the relative gear of the eccentric circle is reduced, at this time, the rotating speed of the eccentric circle becomes slow, because the track of the hyperboloid is the track under the condition that the rotating speed of the eccentric circle is the same as the rotating speed of the gear, at this time, the hyperboloid drives the eccentric circle to generate revolution, i.e., the output, from this one cycle. The output quantity depends on the amplitude of the up-and-down motion of the eccentric circle relative to the gear shaft, and the adjustment of the amplitude of the up-and-down motion of the eccentric circle relative to the gear shaft is the speed change and is a stepless speed change with zero initial speed.

The above is not a specific structure:

the gear ring drives the gear to further drive the eccentric circle to rotate, the purpose is to only give the eccentric circle a circular reciprocating motion state, if the gear is changed into a circle capable of sliding on the output shaft in the radial direction, the gear ring can also be changed into an envelope curve surface, and the double curve surface can only keep the inner surface.

The relative motion of the eccentric circle and the gear can also be applied to a rotary oil cylinder structure, and the aim is to generate relative continuous acceleration and deceleration.

The working principle and the beneficial effects of the invention are as follows:

1. a continuously variable transmission scheme is proposed starting from zero.

2. A pure mechanical stepless speed change scheme is provided, the defect that the existing CVT type friction force drive cannot bear large torque is overcome, and the CVT can be applied to various scenes including bicycles, heavy trucks, ships and the like.

3. A plurality of sensors are not needed, the operation is simpler, and the manual adjustment can be carried out according to the requirement.

4. The engine can improve the fuel efficiency and reduce the pollution.

5. The brake system can be applied to the brake system of the truck, and the accident caused by brake failure can be avoided for forced braking.

6. The endurance mileage of the electric automobile can be improved.

Description of the drawings:

are schematic drawings and do not represent specific dimensions and shapes

11-gear shaft, 2-hollow gear, 3-eccentric circle, 4-hyperboloid inner surface, 5-hyperboloid bottom, 6-hyperboloid, 7-gear ring and 8-hyperboloid outer surface.

FIG. 1 is a schematic view of an assembly.

Fig. 2 is a small assembly on the output shaft.

Fig. 3 is an eccentric circle.

Fig. 4 is a hollow gear.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

As shown in fig. 1, when there is no output, the gear 2 is driven by the gear ring 7, and the position of the eccentric circle 3 relative to the gear 2 is unchanged. The two curved surfaces are integrated (the double curved surfaces 6), namely the gear ring 7 drives the gear 2 to rotate and the double curved surfaces 6 rotate at the same time, under the condition of a specific speed ratio, the eccentric circle and the curved surfaces do not interfere with each other, and the gear 1 does not revolve, namely, output is not generated.

When the output is enabled, under the condition of a specific speed ratio, the hyperboloid 6 and the gear ring 7 rotate, and the eccentric circle 3 starts to do up-and-down reciprocating motion, namely: when the gear 2 drives the top of the eccentric circle 3 to move from the position farthest from the axis of the curved surface to the axis of the curved surface, an upward (or downward) movement is applied to the eccentric circle 3, so that a tendency that the movement towards the axis of the curved surface is accelerated relative to the case of no output is formed. However, the hyperboloids are tracks which guarantee no output, so that the two motions are superposed, the hyperboloids 6 can block the motion of the eccentric circle 3, the eccentric circle cannot normally move towards the axis direction of the hyperboloids, the speeds of the hyperboloids 6 and the gear ring 7 are unchanged, and the gear ring 7 can drive the gear 2 to form revolution, namely output; when the vertex of the eccentric circle 3 driven by the gear 2 moves outwards from the nearest position to the axis of the curved surface, the reciprocating motion of the eccentric circle 3 starts to move downwards (or upwards), so that the eccentric circle 3 has a tendency of decelerating to move away from the axis of the curved surface when no output exists, and because the curved surface 6 is a motion track ensuring no output, the gear ring 7 moves together with the curved surface 6, and the curved surface 6 pushes the eccentric circle 3 to revolve, namely, drives the gear 2 to revolve. The output quantity is related to the distance of the up-and-down reciprocating motion of the eccentric circle 3,

as a further technical solution, when there is output, the eccentric circle 3 makes reciprocating motion, and it is necessary to ensure that the vertex of the eccentric circle 3 just reaches the nearest axial center point of the hyperboloid 6, so that the frequency is matched, and the mechanism for controlling the reciprocating motion of the eccentric circle 3 needs to keep consistent with the rotating speed of the hyperboloid 6, and the speed is equal.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.