CN209990863U

CN209990863U - Dish-shaped stepless speed change device

Info

Publication number: CN209990863U
Application number: CN201821476515.9U
Authority: CN
Inventors: 韩喜胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-15
Filing date: 2018-09-10
Publication date: 2020-01-24
Anticipated expiration: 2028-09-10
Also published as: WO2019114367A1; CN109083994A; CN107917170A

Abstract

The utility model belongs to the technical field of mechanical stepless transmission, and provides a disc-shaped stepless speed change device which comprises a disc-shaped disc, a tray and a transmission mechanism, wherein the disc-shaped disc limits the moving freedom degrees of the disc-shaped disc in the three directions of xyz, the tray is contacted with the disc-shaped disc to limit the rotating freedom degrees of the tray in the three directions of xyz, the distance between the tray and the center of the disc-shaped disc is less than the radius of the disc-shaped disc, the disc-shaped disc is stressed to be contacted with the tray, and the relative speed between the contact points of the disc-shaped disc and the tray is a fixed value, and along with the change of the distance between the disc-shaped disc and the tray, the ratio of the rotational speed of the projection of the radius of the disc on the tray to the rotational speed of the projection of the lowest point of the disc on the tray changes, through the technical scheme, the technical problem of a part of the existing CVT technology in the application process is solved.

Description

Dish-shaped stepless speed change device

Technical Field

The utility model belongs to the technical field of mechanical stepless transmission, a dish-shaped stepless speed change device is related to.

Background

The speed and the change of the running of the automobile are determined by two characteristics of stepless rotating speed of an engine and the stepless running of the automobile, so that a transmission of the automobile is required to achieve a stepless speed change ratio (CVT). Today, since the birth of automobiles is nearly three hundred years, automobiles do not use satisfactory stepless transmissions, which is the ineffectiveness and the shortage of automobiles, but transmission experts and scholars all over the world do not give up searching for new methods and devices for realizing ideal automobile stepless transmissions all the time, all automobile manufacturers in the world invest great enthusiasm to develop a great amount of financial resources and experts for CVTs, the practical process of the CVT in the automobile field is extremely emphasized, but no good results and scientific research effects exist so far.

At present, there are 3 kinds of commonly used automobile speed changers, the first is steel disc and steel belt type continuously variable transmission CVT technology represented by Japan, because the technology can only be applied in a small power range, most of the automobile speed changers are arranged on small-sized passenger cars, large-sized passenger cars and heavy trucks can not be popularized and applied, the second is a stepped automatic speed changer AD technology represented by American Europe, because the automatic speed changer has small transmission power, low transmission efficiency, complex structure, high cost, most of the automobile speed changers are arranged on high-sized small cars, large, medium and heavy vehicles can not be used, the third is that the most widely used traditional gear speed changer of the existing automobiles can be used no matter the light and heavy vehicles can use the large and small power, the gear speed changer still occupies the mainstream of the automobile speed changer by the obvious advantages of simple structure, low cost, large power, high efficiency and the like, and the defect is that a driver needs to always follow the running speed of the, Frequent shifting of the operating range to ensure a perfect match between the engine and the speed at which the vehicle is travelling requires a good physical quality and a good driving experience for the driver.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a disk-shaped stepless speed change device to solve one or more of the above technical problems.

In order to achieve the above object, according to an aspect of the present invention, there is provided a speed changing method of a disk-shaped continuously variable transmission, wherein a center of a circle of a ring is fixed so as not to displace, a horizontal radius of the ring is changed by changing an inclination angle of the ring, a driving ball of a driving disk rotates along the ring, and thereby a method of realizing continuously variable transmission by pushing the ring to rotate in a horizontal direction is provided. The disk-shaped stepless speed change device is of an annular structure which generates a stepless speed change effect due to stress. The center of the circle of the ring of the disk-shaped stepless speed change device is of a spherical structure without displacement. The circular ring and the middle central ball are connected together by two cylindrical connecting rods, the two connecting rods are positioned at two sides of the central ball and penetrate through one diameter line of the circular ring, or the two connecting rods are connected together by four cylindrical connecting rods and are positioned on two mutually perpendicular diameter lines of the circular ring. The circular ring and the central ball are concentric and connected together to form a disc-shaped disc structure. The method for fixing the center of a circular ring without displacement is characterized in that the insides of two ball sleeves at fixed positions are spherical cambered surfaces which surround a central ball in the middle, so that the ball sleeves do not displace. The ball sleeve is of a hollow hemispherical structure, and the contact surface between the interior of the ball sleeve and the central ball of the disc-shaped disc is a spherical cambered surface. The contact surface of the ball sleeve and the central ball of the disc-shaped disc is provided with a driving ball. The ball cover has two symmetrical or four evenly distributed gaps which extend from the hemispherical bottom to approximately the hemispherical top. The tray is characterized in that the tray is annular, the inner diameter of the tray is slightly larger than the ball sleeve, and the tray is arranged on a shaft of the ball sleeve for outputting power, can move up and down and cannot move horizontally.

According to another aspect of the present invention, there is provided a method for continuously variable speed control of a disc, comprising limiting the freedom of movement in three directions of the center xyz of the disc, and further comprising limiting the freedom of rotation in three directions of the tray xyz by a tray in contact with the disc, wherein the distance from the tray to the center of the disc is smaller than the radius of the disc, the disc is forced to contact with the tray, and the relative speed at the contact point between the disc and the tray is constant,

the ratio of the rotating speed of the projection of the radius of the disc on the tray to the rotating speed of the projection of the lowest point of the disc on the tray changes along with the change of the distance between the center of the disc and the tray.

As a further technical scheme, the disc-shaped tray comprises an output shaft, wherein a rotating shaft passes through the center of the disc-shaped tray, the rotating shaft of the output shaft is perpendicular to the tray, a poke rod is arranged on the output shaft, and a channel for the poke rod to pass through is arranged on the disc-shaped tray.

As a further technical scheme, the disc-shaped tray comprises an input shaft, wherein a rotating shaft passes through the center of the disc-shaped tray, the rotating shaft of the input shaft is perpendicular to the tray, a pressing ring device used for enabling the disc-shaped tray to incline is arranged on the input shaft, and the pressing ring device is in sliding contact with the disc-shaped tray.

According to the utility model discloses an on the other hand still provides a restriction the method of the three direction's of the central xyz freedom of dish shape dish, including the dish shape dish, dish shape dish center is provided with the through-hole, be provided with the center ball through the connecting rod in the through-hole, center ball centre of sphere with dish shape dish center coincidence still includes the ball cover, the center ball rotates and sets up in the ball cover, be provided with the confession on the ball cover the perforation that the connecting rod was worn out, the ball cover rotates and sets up on the base, the ball cover rotation axis passes center ball center.

According to the utility model discloses an on the other hand still provides a restriction the method of the three direction's of the central xyz freedom of movement of dish shape dish, including the dish shape dish, dish shape dish center is provided with the through-hole, be provided with central carousel through the connecting rod in the through-hole, central carousel rotates and sets up on the plate rail, central carousel rotation axis with the dish shape dish is radial the same, the plate rail rotates and sets up on the base, the plate rail rotation axis passes dish shape dish center.

According to the utility model discloses an on the other hand, still provide a dish-shaped infinitely variable transmission, which comprises a base, be provided with input shaft and output shaft along coaxial rotation on the base, be provided with the ball cover on the output shaft, it is provided with the center ball to rotate in the ball cover, the center ball is connected with the ring through the connecting rod, be provided with the confession on the ball cover the perforation that the connecting rod was worn out, it is vertical at least to perforate, still be provided with the tray through elevating gear on the base, the ring with both relative speeds of tray contact and contact point are the definite value, the input shaft is provided with and is used for pressing the press device of ring, press device with the ring contact.

According to the utility model discloses an on the other hand, still provide a dish-shaped infinitely variable device, which comprises a base, be provided with input shaft and output shaft along coaxial rotation on the base, be provided with the plate rail on the output shaft, it is provided with central carousel to rotate in the plate rail, central carousel is connected with the ring through the connecting rod, be provided with the confession on the plate rail the perforation that the connecting rod was worn out, it is vertical at least to perforate at least one border, still be provided with the tray through elevating gear on the base, the ring with both relative speeds of tray contact and contact point are the definite value, the input shaft is provided with and is used for pressing the press device of ring, press device with the ring contact.

As a further technical scheme, the ring includes the base ring, the base ring pass through the connecting rod with center ball or center carousel is connected, be provided with the clamping ring on the base ring, the clamping ring with the press device contact, it has a plurality of shell fragments to distribute along circumference on the base ring, the shell fragment with the clamping ring contact.

As a further technical scheme, the pressing device comprises a connecting portion arranged on the input shaft, the connecting portion is connected with a pressing ring device, the pressing ring device is in contact with the circular ring, and a telescopic device is arranged between the pressing ring device and the connecting portion or between the connecting portion and the input shaft.

As a further technical scheme, the pressing device comprises a rotating frame arranged on the input shaft, a pressing ring device is arranged on the rotating frame in a rotating mode, and one side of the pressing ring device is connected with the input shaft or the rotating frame through a telescopic device.

As a further technical scheme, a driving ball is arranged at the contact position of the pressure ring device and the circular ring.

As a further technical scheme, a rolling groove for the driving balls to roll is formed in the circular ring, and the rolling groove is formed in the circular ring along the circumferential direction.

As a further technical scheme, the telescopic device is a telescopic cylinder.

As a further technical scheme, the telescopic device comprises an adjusting ring sleeved on the input shaft, and the adjusting ring is connected with one side of the pressing ring device through a zipper.

As a further technical scheme, the ball sleeve comprises two hemispherical sleeves, gaps are formed in the hemispherical sleeves, and the gaps are spliced into the through holes when the hemispherical sleeves are spliced.

By applying the technical proposal of the utility model,

1. the utility model discloses a change of the angle of driving-disc and tray control dish or ring makes dish or ring radius take place relative change in the projection on the horizontal plane, drives dish or ring and rotates, drives the ball cover rotation then to the speed that makes the output changes and reaches infinitely variable's effect. During the rotation process, the generation of friction force is avoided as much as possible, so that unnecessary energy waste is avoided.

2. The utility model discloses the in-process of whole variable speed all is rolling among the device, links up, pure mechanical promotion. Compared with a gearbox with gears, the transmission reduces friction, inherits direct transmission of force, can bear very large torque, overcomes the defects of small bearing capacity, overload resistance and poor impact resistance compared with a stepless speed change CVT, and inherits the advantages of stepless speed change. Simultaneously the utility model discloses at the transmission in-process at whole motion in-process centre of sphere not take place any displacement. The utility model discloses the infinitely variable technology has been possessed to can start from zero, do not need the perfect realization infinitely variable process of cooperation of clutch. Therefore, the clutch can be eliminated by the technology described in the present invention.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a driving disk, which is a power input part, the cylinder under the disk and the disk are integrated without relative displacement, the top of the cylinder is a central ball installed at the bottom of the cylinder, the central ball can rotate in any direction, and the driving disk can move up and down and rotate along the shaft of FIG. 2;

fig. 2 is a ball sleeve, which is integrated with fig. 4, and has two or four notches, only two notches are shown in fig. 2 and 4, for better illustration, the ball sleeve is shaped like an "H", fig. 2 and 4 are combined together to form a complete ball sleeve, the ball sleeve has a spherical arc surface inside, the radian of the arc surface is slightly larger than that of the ball in the middle of fig. 3, a plurality of driving balls are arranged inside, the driving balls are used for fixing the central ball in the middle of the disc-shaped disc in fig. 3, so that the center of the central ball is not displaced, the center of the disc-shaped disc is positioned on the central line of the shaft of the ball sleeve, and the rotation of the central ball in fig. 3 is ensured to have the lowest friction force. The ball sleeve shaft handle and the ball sleeve are connected together to form a whole;

FIG. 3 is a disk-shaped plate, a central ball is arranged in the middle, a circular ring is arranged outside, the center of the central ball is also the center of the circular ring, the central ball and the circular ring are connected together through two or four cylindrical rods, the central ball and the circular ring are a whole body and do not have relative displacement, only two connecting rods are shown in FIG. 3 for better illustration, and the angle of every two adjacent connecting rods is 90 degrees if four connecting rods are arranged;

FIG. 4 is the same as FIG. 2, and is also a half ball sleeve, which is the power output part;

FIG. 5 is a tray for holding the annular portion of the disk of FIG. 3 and, together with FIG. 1, controlling angular changes of the disk of FIG. 3, mounted on the shaft of the ball sleeve of FIG. 4, movable up and down along the shaft, and horizontally relatively stationary;

FIG. 6 is an exploded view of the ball sleeve, disk and tray;

FIG. 7 is a schematic view of embodiment 1 with the drive plate removed;

FIG. 8 is a schematic structural view of example 1;

FIG. 9 is a schematic structural view of a butterfly-type continuously variable transmission;

FIG. 10 is a cross-sectional schematic view of a butterfly continuously variable transmission;

FIG. 11 is a schematic view showing the construction of a tap lever according to embodiment 5;

FIG. 12 is a schematic view of the structure of a dish in example 5;

fig. 13 is a schematic structural view of a pressure ring device according to embodiment 6;

fig. 14 is a schematic sectional view of a butterfly continuously variable transmission device according to embodiment 6;

FIG. 15 is a schematic view showing the construction of a tap lever according to embodiment 6;

FIG. 16 is a schematic view showing the structure of a dish in example 6;

FIG. 17 is a schematic view of the construction of the center turntable and the plate rack;

FIG. 18 is a schematic structural view of the continuously variable transmission after the spring plate is applied;

FIG. 19 is a schematic diagram of a first spring plate;

FIG. 20 is a schematic view of a second spring plate according to an embodiment;

in the figure: 1-dish-shaped disc, 11-through hole, 12-connecting rod, 13-center ball, 14-circular ring, 141-rolling groove, 142-base ring, 143-pressing ring, 144-shrapnel, 15-channel, 16-center turntable, 17-disc rack, 2-tray, 3-input shaft, 4-output shaft, 5-poke rod, 51-ball sleeve, 511-perforation, 52-half ball sleeve, 521-notch, 6-pressing ring device, 61-driving ball, 7-pressing device, 71-connecting part, 72-rotating frame, 8-base, 9-telescoping device, 91-adjusting ring, 92-pulling lock and 10-lifting device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1:

as shown in FIG. 1 ~ 8, the method of changing speed of a disk-shaped stepless speed change device is characterized in that the center of a circular ring is fixed so as not to displace, the horizontal radius of the circular ring is changed by changing the inclination angle of the circular ring, the driving balls of a driving disk rotate along the circular ring to push the circular ring to rotate horizontally so as to realize stepless speed change.

When the annular parts of the tray and the disc-shaped disc are superposed together, the tray is in surface contact with the disc-shaped disc, the disc-shaped disc has no inclination angle, when the disc-shaped disc is pressed by the driving disc to rotate, the central ball of the driving disc rolls, no force is applied, and the speed of the disc-shaped disc and the output ball sleeve is 0. And setting the perimeter of the edge of the dish as L, when the tray is superposed with the dish, the driving disk rotates for one circle, the contact length of the tray and the edge of the dish is L1, and L1 is L. When the tray and the driving disc move downwards under the action of pressure, the disc-shaped disc can generate an inclination angle due to the unchanged position of the circle center, the radius in the horizontal direction becomes small, the driving disc presses the disc-shaped disc to rotate for a circle, and the central ball of the disc-shaped disc can rotate randomly under the condition of unchanged position of the circle center, so that the contact length L1 between the edge of the disc-shaped disc and the tray at the moment is less than the perimeter L of the disc-shaped disc, L1 is less than the rotation angle L of the disc-shaped disc, and the ratio of the length difference of L and L1 to the original perimeter L is the rotation angle of the disc-shaped disc. With the continuous downward movement of the driving disc and the tray under the pressure, the inclination angle is larger and larger, the circumference L1 is continuously reduced, the output speed of the ball sleeve is faster and is continuously close to the speed of the driving disc, and otherwise, the speed is gradually reduced more and slower.

The force is an inclined plane thrust, like a right triangle, the inclined edge is gradually raised or lowered, the length difference between the inclined edge and the bottom edge is continuously enlarged or reduced, the driving disc and the tray control the inclined edge to be far away from or close to the bottom edge, the side edge is pushed to generate the thrust, the ball sleeve is driven to rotate, and the stepless speed change effect is generated.

The whole process is rolling, continuous and purely mechanical. Compared with a gearbox with gears, the transmission reduces friction, inherits direct transmission of force, can bear very large torque, overcomes the defects of small bearing capacity, overload resistance and poor impact resistance compared with a stepless speed change CVT, and inherits the advantages of stepless speed change. The utility model discloses simple structure, the size is little, and easy the maintenance, frictional force is little, and calorific capacity is low, infinitely variable is applicable to various vehicles boats and ships and mechanical equipment infinitely variable's demand.

Example 2:

as shown in figure 1 ~ 20 of the drawings,

a disk-shaped stepless speed change method is provided, which comprises a disk-shaped disk 1, a tray 2 contacted with the disk-shaped disk 1 and a disk-shaped disk 2, wherein the moving freedom degrees of the disk-shaped disk 1 in three directions of xyz are limited, the rotating freedom degrees of the tray 2 in three directions of xyz are limited, the distance between the tray 2 and the center of the disk-shaped disk 1 is smaller than the radius of the disk-shaped disk 1, the disk-shaped disk 1 is stressed to be contacted with the tray 2, and the relative speed between the contact points of the disk-shaped disk 1 and the tray 2 is a fixed value,

along with the change of the distance between the center of the disc 1 and the tray 2, the inclination angle of the disc 1 is changed, and the ratio of the rotating speed of the projection of the radius of the disc 1 on the tray 2 to the rotating speed of the projection of the lowest point of the disc 1 on the tray 2 is changed.

In this embodiment, three degrees of freedom of movement of the disk 1 as a center are restricted but can rotate or swing within a certain range around the center, the tray 2 is a structure that does not rotate but can adjust the distance between the tray and the center of the disk 1, and can be annular, the disk 1 tilts and contacts with the tray 2 in point, when the contact point between the disk 1 and the tray 2 does not slide relatively, the tilt angle of the disk 1 is α, the edge circumference of the disk 1 is L, the lowest point is the contact point, when the contact point on the disk 1 and the tray 2 rotates around the projection of the disk 1 on the tray 2 in a circle, because the disk 1 and the tray 2 do not slide, the movement of the disk 1 can be regarded as the combination of the rotation along with the contact point and the rollback with the tray 2, and one point on the outer edge of the disk 1 rolls back along with the lowest point while rotating, the projection rotating speed of the radius of the disc 1 on the tray 2 is (1-cos alpha) times of the projection rotating speed of the lowest point of the disc 1 on the tray 2, so that a rotating speed difference is formed, and a speed change effect is realized.

In the embodiment, the relative speed of the contact points of the disc-shaped disc 1 and the tray 2 is zero, which is the best implementation scheme, the contact points do not slide, no loss is generated due to the friction force acting, the transmission efficiency is highest, and the setting is scientific and reasonable.

Further, the tray type tray device further comprises an output shaft 4 with a rotating shaft passing through the center of the disc-shaped tray 1, the rotating shaft of the output shaft 4 is perpendicular to the tray 2, a poke rod 5 is arranged on the output shaft 4, and a channel 15 for the poke rod 5 to penetrate through is arranged on the disc-shaped tray 1.

In this embodiment, output shaft 4 is power output shaft 4, poker rod 5 is driven and drives output shaft 4 pivoted device by 15 edges of passageway when dish 1 swings, poker rod 5 and output shaft 4 are the setting of non-coaxial collineation, when dish 1 rotates around its central perpendicular line to

tray

2, 15 edges of passageway and poker rod 5 are sliding contact, can transmit the branch rotational speed of the radius at 15 edges of passageway on the face parallel with tray 2 to output shaft 4, and then realize exporting the projected rotational speed of dish 1 radius on tray 2.

Further, the tray device comprises an input shaft 3 with a rotating shaft passing through the center of the disc-shaped disc 1, the rotating shaft of the input shaft 3 is perpendicular to the tray 2, a pressure ring device 6 used for enabling the disc-shaped disc 1 to incline is arranged on the input shaft 3, and the pressure ring device 6 is in sliding contact with the disc-shaped disc 1.

In this embodiment, the input shaft 3 is a power input shaft 3, the disk 1 can be pressed to be inclined by the pressure ring device 6 arranged on the input shaft 3, and meanwhile, the rotation speed of the pressure ring device 6 can be kept synchronous with the rotation speed of the projection of the lowest point of the disk 1 on the tray 2, so that the rotation speed of the projection of the lowest point of the disk 1 on the tray 2 is expressed as the rotation speed of the input shaft 3.

Example 3:

as shown in figure 1 ~ 20 of the drawings,

the method for limiting the moving freedom degrees of the three directions of the center xyz of the disc-shaped disc 1 comprises the disc-shaped disc 1, wherein a through hole 11 is formed in the center of the disc-shaped disc 1, a central ball 13 is arranged in the through hole 11 through a connecting rod 12, the center of the central ball 13 coincides with the center of the disc-shaped disc 1, the method further comprises a ball sleeve 51, the central ball 13 is rotatably arranged in the ball sleeve 51, a through hole 511 for the connecting rod 12 to penetrate out is formed in the ball sleeve 51, the ball sleeve 51 is rotatably arranged on a base 8, and the rotating shaft of the ball sleeve 51 penetrates through the center of the central ball 13.

In this embodiment, the disc 1 includes a central ball 13, and further includes an annular structure connected to the central ball 13 through a connecting rod, the middle of the annular structure is a through hole 11, the central ball 13 can rotate freely in the ball sleeve 51, a through hole 511 is formed in the ball sleeve 51 to enable the connecting rod 12 to move in the through hole 511 when the central ball 13 rotates in the ball sleeve 51, so as to limit three degrees of freedom of movement of the disc 1, and at the same time, the ball sleeve can rotate relative to the base, and the central ball and the connecting rod on the ball sleeve can rotate relative to the ball sleeve, so that the disc can rotate freely in three directions relative to the base, and the disc 1 is allowed to swing and rotate within a certain range relative to the ball sleeve 51.

Example 4:

as shown in figure 1 ~ 20 of the drawings,

a method for limiting the freedom of movement of the center xyz of a disc-shaped disc in three directions comprises the disc-shaped disc 1, wherein a through hole 11 is formed in the center of the disc-shaped disc 1, a center turntable 16 is arranged in the through hole 11 through a connecting rod 12, the center turntable 16 is rotatably arranged on a disc frame 17, the rotating shaft of the center turntable 17 is the same as the radial direction of the disc-shaped disc 1, the disc frame 17 is rotatably arranged on a base, and the rotating shaft of the disc frame 17 penetrates through the center of the disc-shaped disc 1.

In this embodiment, the disc 1 includes a central turntable 16, and further includes an annular structure connected to the central turntable 16 through a connecting rod 12, a through hole 11 is formed in the middle of the annular structure, the central turntable 16 can freely rotate on a disc frame 17, the disc frame 17 can freely rotate on a base, wherein a rotation axis of the disc frame 17 relative to the base is perpendicular to a rotation axis of the central turntable 16 relative to the disc frame 17, so that the disc 1 can have rotational degrees of freedom in three directions, and the restriction on three degrees of freedom of movement of the disc 1 can be simultaneously performed, thereby allowing the disc 1 to swing and rotate relative to the ball sleeve 51.

Example 5:

as shown in fig. 8 ~ 20, a disk-shaped stepless speed change device comprises a base 8, an input shaft 3 and an output shaft 4 are coaxially and rotatably arranged on the base 8, a ball sleeve 51 is arranged on the output shaft 4, a center ball 13 is rotatably arranged in the ball sleeve 51, the center ball 13 is connected with a circular ring 14 through a connecting rod 12, a through hole 511 for the connecting rod 12 to penetrate through is arranged on the ball sleeve 51, at least one edge of the through hole 511 is vertical, a tray 2 is further arranged on the base 8 through a lifting device 10, the circular ring 14 is in contact with the tray 2, the relative speed of the two contact points is a fixed value, a pressing device 7 for pressing the circular ring 14 is arranged on the input shaft 3, and the pressing device 7 is in contact with the circular ring.

Meanwhile, in the implementation, the structure of the central ball and the ball sleeve can be replaced by the structure of a central turntable and a disc frame, specifically, the disc frame 17 is arranged on the output shaft 4, the central turntable 16 is rotatably arranged in the disc frame 17, the central turntable 16 is connected with a circular ring 14 through a connecting rod 12, and a through hole 511 for the connecting rod 12 to penetrate through is arranged on the disc frame 17.

In this embodiment, the pressing device 7 is a pressing rod, the contact point between the pressing device 7 and the ring 14 can slide freely, the rotation speed of the pressing device 7 is the same as that of the input shaft 3 along with the rotation of the input shaft 3, the rotation speed of the lowest point of the ring 14 relative to the tray 2 is the same as that of the input shaft 3 due to the pressing action of the pressing device 7 and the ring 14, the rotation speed of the lowest point of the ring 14 relative to the tray 2 is the same as that of the input shaft 3, the ring 14 slides at a fixed speed while rolling or connected with the tray 2, the ring 14 rotates along with the rotation of the pressing device 7 under the action of the tray 2, the ring 14 also drives the connecting rod 12 to move, the connecting rod 12 can drive the ball sleeve 51 to rotate through the through hole 511 on the ball sleeve 51, and because at least one edge of the through hole 511 is vertically arranged, the connecting rod 12 can output the partial motion of the, the power output is realized, wherein the pressing device 7 can adjust the inclination angle of the circular ring 14, and the lifting device 10 can adjust the height of the tray 2, so that the tray 2 and the circular ring 14 are kept in contact and abutting relation.

The pressing device 7 is in sliding contact with the ring 14, pressure exists between the ring 14 and the tray 2 at a contact point, the pressure can generate resistance, and further the relative sliding between the ring 14 and the tray 2 is prevented or the sliding is performed at a fixed speed, and the resistance is increased by changing the surface quality or structure of the contact surface of the ring 14 and the tray 2, so that the constraining force is increased, and the sliding between the ring 14 and the tray 2 is prevented.

In this embodiment, the lifting device 3 is a device for changing the height of the tray, and those skilled in the art can think of several embodiments for the purpose of changing the height of the tray 2, such as using a cylinder, a pneumatic cylinder, an electric cylinder, a screw rod, a nut, etc., which will not be described herein in detail.

Furthermore, two ends of the connecting rod 12 are rotatably connected with the central ball 13 and the circular ring 14 through bearings respectively, so that the connecting rod and the through hole can slide to roll, the sliding rate is reduced, and the transmission efficiency is improved.

Further, the ring 14 is in contact with the tray 2 and the relative speed of the two contact points is zero.

In this embodiment, when the relative sliding does not occur between the ring 14 and the tray 2, that is, the relative speed between the contact points of the ring 14 and the tray 2 is zero, the optimal implementation scheme is adopted, the contact points do not slide, the loss caused by the friction acting is avoided, the transmission efficiency is highest, and the setting is scientific and reasonable.

Further, the pressing device 7 includes a connecting portion 71 provided on the input shaft 3, the connecting portion 71 is connected to the ring pressing device 6, the ring pressing device 6 is in contact with the ring 14, and the expansion device 9 is provided between the ring pressing device 6 and the connecting portion 71 or between the connecting portion 71 and the input shaft 3.

In this embodiment, the connecting portion 71 and the input shaft 3 rotate together, and the pressure ring device 6 is disposed on the connecting portion 71, wherein the height of the pressure ring device 6 can be changed along with the expansion and contraction of the expansion and contraction device 9, so as to drive the inclination angle of the ring 14 to change, thereby realizing speed change.

Further, the connecting portion 71 includes a driving disk, the axis of the driving disk is collinear with the axis of the input shaft 3, and a pressure ring device 6 is disposed below the driving disk through a telescopic device 9. When the driving disc rotates, the compression ring device 6 is driven to rotate, and the inclination angle of the circular ring 14 can be adjusted by adjusting the telescopic device 9 and the lifting device 10 below the tray 2.

Further, a driving ball 61 is provided at a contact portion of the pressure ring device 6 and the ring 14.

In this embodiment, the driving balls 61 are disposed at the contact points of the pressure ring device 6 and the circular ring 14, so that the rolling friction force between the pressure ring device 6 and the circular ring 14 can be eliminated, the sliding is changed into rolling, the sliding rate is reduced, and the transmission efficiency is improved.

Further, the ring 14 is provided with a rolling groove 141 for rolling the driving balls 61, and the rolling groove 141 is provided in the circumferential direction in the ring 14.

In this embodiment, the driving balls 61 can roll in the rolling grooves 141 formed in the circular ring 14, so that the movement locus of the contact point between the pressure ring device 6 and the circular ring 14 is more regular, and the transmission accuracy and efficiency are improved.

Further, the expansion device 9 is an expansion cylinder having both ends connected to the ring pressing device 6 and the connecting portion 71, respectively, or both ends connected to the connecting portion 71 or the input shaft 3, respectively. The telescopic rod can be a cylinder hydraulic cylinder or an electric cylinder or other devices capable of adjusting the length in the prior art.

Further, the ball sleeve 51 comprises two semispherical sleeves 52, notches 521 are formed in the semispherical sleeves 52, and the notches 521 are spliced to form through holes 511 when the semispherical sleeves 52 are spliced.

In this embodiment, the ball sleeve 51 is formed by mutually splicing two semispherical sleeves 52, so that the ball sleeve 51 and the central ball 13 can be conveniently installed, the through hole 511 is also divided into two notches 521 which are respectively arranged on the two semispherical sleeves 52, and the connecting rod 12 can be conveniently inserted into the through hole 511 during installation.

In this embodiment, in a certain range of the inclination angle of the ring 14, since the pressure angle between the ring 14 and the tray 2 is smaller than the friction angle, self-locking is realized, the ring 14 and the tray 2 do not slide relatively, only roll, and non-sliding high-efficiency transmission is realized.

Example 6:

In this embodiment, the pressing device 7 is a pressing swash plate, the contact point between the pressing device 7 and the ring 14 can slide freely, the rotation speed of the pressing device 7 is the same as that of the input shaft 3 along with the rotation of the input shaft 3, the rotation speed of the lowest point of the ring 14 relative to the tray 2 is the same as that of the input shaft 3 due to the pressing action between the pressing device 7 and the ring 14, the rotation speed of the lowest point of the ring 14 relative to the tray 2 is the same as that of the input shaft 3, the ring 14 slides at a fixed speed while rolling or connected with the tray 2, the ring 14 rotates along with the rotation of the pressing device 7 under the action of the tray 2, the ring 14 also drives the connecting rod 12 to move, the connecting rod 12 can drive the ball sleeve 51 to rotate through the through hole 511 on the ball sleeve 51, and because at least one edge of the through hole 511 is vertically arranged, the connecting rod 12 can output the partial motion of, the power output is realized, wherein the pressing device 7 can adjust the inclination angle of the circular ring 14, the lifting device 10 can adjust the height of the tray 2, the tray 2 and the circular ring 14 are kept in contact and abutting relation,

the pressing device 7 is in sliding contact with the ring 14, pressure exists between the ring 14 and the tray 2 at a contact point, the pressure can generate resistance, and further the ring 14 and the tray 2 are prevented from sliding relatively or sliding at a fixed speed, and the resistance can be increased by changing the structure of the contact surface of the ring 14 and the tray 2 to increase the restraining force.

Meanwhile, in the embodiment, the through hole 511 is a strip-shaped hole, and the connecting rod 12 and two edges of the through hole 511 are in contact with each other, so that the output of the rotating speed of the radius of the circular ring 14 at the top of the upper head of the tray 2 can be realized.

In this embodiment, the lifting device 3 is a device for changing the height of the tray, and those skilled in the art can think of several embodiments for the purpose of changing the height of the tray, such as using a cylinder, a pneumatic cylinder, an electric cylinder, a screw rod, a nut, etc., which will not be described herein in detail.

Further, the pressing device 7 includes a rotating frame 72 provided on the input shaft 3, the rotating frame 72 is rotatably provided with a pressure ring device 6, and one side of the pressure ring device 6 is connected to the input shaft 3 or the rotating frame 72 through a telescopic device 9.

In this embodiment, the rotation of the pressure ring device 6 is arranged on the rotating frame 72, and when the expansion device 9 drives the pressure ring device 6 to rotate, the inclination angle of the circular ring 14 can be changed, so as to adjust the transmission ratio.

Further, the expansion device 9 is an expansion cylinder with two ends respectively connected with the pressure ring device 6 and the rotating frame 72 or two ends respectively connected with the pressure ring device 6 or the input shaft 3. The telescopic rod can be a cylinder hydraulic cylinder or an electric cylinder or other devices capable of adjusting the length in the prior art.

Further, the expansion device 9 includes an adjusting ring 91 sleeved on the input shaft 3, and the adjusting ring 91 is connected to one side of the pressure ring device 6 through a zipper 92. The telescoping device 9 can also be an adjusting ring 91, the adjusting ring 91 can slide along the input shaft 3, the adjusting ring 91 is far away from the pressure ring device 6, the pressure ring device 6 can be pulled to incline through the zipper 92, and then the speed change effect is realized.

Example 7:

as shown in fig. 18 ~ 20:

the ring 14 comprises a base ring 142, the base ring 142 is connected with the center ball 13 or the center turntable 16 through the connecting rod 12, a pressing ring 143 is arranged on the base ring 142, the pressing ring 143 is in contact with the pressing device 7, a plurality of elastic sheets 144 are distributed on the base ring 142 along the circumferential direction, and the elastic sheets 144 are in contact with the pressing ring 143.

In this embodiment, the pressing ring 143 can be pressed on the plurality of elastic pieces 144 by the pressing device, when the pressing device rotates along with the input shaft, the pressing ring 143 applies pressure to the pressing ring 143, the pressing ring 143 is pressed to deform the elastic pieces 144, the elastic pieces 144 generate elastic force after being deformed, the elastic force can apply resistance to the pressing ring 143, and meanwhile, as the pressing ring 143 receives resistance, the mutual acting force which can generate resistance pushes the base ring 142 to rotate, so as to drive the output shaft 4 to rotate through the ball sleeve 51 or the tray frame 17, so as to output power, and simultaneously, the pressing device 7 and the pressing ring 143 can directly generate mutual acting force, in the process of tilting and rolling the ring 14, the resistance is provided for the rotation of the ring 14 in the circumferential direction, so as to prevent the ring 14 from freely rotating in the circumferential direction, and meanwhile, the mutual acting force of the resistance drives the base ring 142 to rotate, so as to achieve a transmission effect, the impact force generated by the detonation of the engine is eliminated to a certain extent, so that the power output is more stable.

Further, the top surface of the base ring 142 is provided with a pressing ring 143 through a limiting ring arranged along the circumferential direction, and the outer diameter of the limiting ring is smaller than the inner diameter of the pressing ring 143.

In this embodiment, the base ring 142 is further provided with a limiting ring, the pressing ring 143 is sleeved on the limiting ring, the pressing ring 143 can be prevented from falling off, and meanwhile, the outer diameter of the limiting ring is smaller than the inner diameter of the pressing ring 143, so that the angle of the pressing ring 143 relative to the base ring 142 and the limiting ring can be allowed to change.

Furthermore, one end of the elastic sheet 144 is arranged on the base ring 142, the other end of the elastic sheet 144 is in contact with the side face of the press ring 143, and the middle part of the elastic sheet 144 is connected with the base ring 142 through a spring.

In this embodiment, the elastic sheet 144 may be a strip shape, and provides an elastic force through a spring, and when the elastic sheet 144 is pressed, the spring applies an elastic force in an opposite direction to provide a resistance force for the compression spring.

Furthermore, the elastic piece 144 is U-shaped, one end of the elastic piece 144 is arranged on the base ring 142, the other end of the elastic piece 144 is in contact with the base ring 142, and the middle of the elastic piece 144 is in contact with the pressing ring 143.

In this embodiment, the elastic piece 144 may also be U-shaped, one end of the elastic piece 144 is fixed to the base ring 142, and the other end of the elastic piece 144 is in sliding contact with the base ring 142.

The embodiments described herein are merely illustrative of the spirit of the invention and those skilled in the art can make various modifications, additions or substitutions to the embodiments described and illustrated herein without departing from the spirit of the invention or exceeding the scope of the claims. Although the terms 1-dish, 11-through hole, 12-link, 13-center ball, 14-ring, 141-rolling groove, 142-base ring, 143-press ring, 144-spring, 15-channel, 16-center turntable, 17-tray, 2-tray, 3-input shaft, 4-output shaft, 5-tap lever, 51-ball sleeve, 511-through hole, 52-half ball sleeve, 521-notch, 6-press ring device, 61-drive ball, 7-press device, 71-connection part, 72-rotating frame, 8-base, 9-telescopic device, 91-adjustment ring, 92-pull lock, 10-lifting device, etc. are used more often herein, the possibility of using other terms is not excluded, these terms are used merely for convenience in describing and explaining the essence of the present invention, and it is to be construed that any term name is contrary to the spirit of the present invention.

Claims

1. A dish-shaped stepless speed change device is characterized by comprising a base (8), an input shaft (3) and an output shaft (4) which are coaxially and rotatably arranged are arranged on the base (8), a ball sleeve (51) is arranged on the output shaft (4), a central ball (13) is rotatably arranged in the ball sleeve (51), the central ball (13) is connected with a circular ring (14) through a connecting rod (12), a through hole (511) for the connecting rod (12) to penetrate out is arranged on the ball sleeve (51), at least one edge of the through hole (511) is arranged in the vertical direction, a tray (2) is further arranged on the base (8) through a lifting device (10), the circular ring (14) is in contact with the tray (2), the relative speed of the contact point and the circular ring is a fixed value, and a pressing device (7) for pressing the circular ring (14) is arranged on the input shaft (3), the pressing device (7) is in contact with the ring (14).

2. The disc-shaped continuously variable transmission according to claim 1, wherein the ring (14) comprises a base ring (142), the base ring (142) is connected with the center ball (13) through a connecting rod (12), a pressing ring (143) is arranged on the base ring (142), the pressing ring (143) is in contact with the pressing device (7), a plurality of elastic sheets (144) are circumferentially distributed on the base ring (142), and the elastic sheets (144) are in contact with the pressing ring (143).

3. A dish-shaped stepless speed change device is characterized by comprising a base (8), an input shaft (3) and an output shaft (4) which are coaxially and rotatably arranged are arranged on the base (8), a dish rack (17) is arranged on the output shaft (4), a central turntable (16) is rotatably arranged in the dish rack (17), the central turntable (16) is connected with a circular ring (14) through a connecting rod (12), a through hole (511) for the connecting rod (12) to penetrate out is arranged on the dish rack (17), at least one edge of the through hole (511) is arranged in the vertical direction, the base (8) is further provided with a tray (2) through a lifting device (10), the circular ring (14) is in contact with the tray (2), the relative speed of the contact point is a fixed value, the input shaft (3) is provided with a pressing device (7) for pressing the circular ring (14), the pressing device (7) is in contact with the ring (14).

4. The disc-shaped stepless speed change device according to claim 3, wherein the ring (14) comprises a base ring (142), the base ring (142) is connected with the central turntable (16) through a connecting rod (12), a pressing ring (143) is arranged on the base ring (142), the pressing ring (143) is in contact with the pressing device (7), a plurality of elastic sheets (144) are distributed on the base ring (142) along the circumferential direction, and the elastic sheets (144) are in contact with the pressing ring (143).

5. A disc-shaped continuously variable transmission as claimed in claim 1 or 3, characterized in that said ring (14) is in contact with said tray (2) and the relative speed of both contact points is zero.

6. A disc-shaped continuously variable transmission according to claim 1 or 3, wherein said pressing means (7) comprises a connecting portion (71) provided on said input shaft (3), said connecting portion (71) being connected to a pressing ring means (6), said pressing ring means (6) being in contact with said circular ring (14), said pressing ring means (6) being provided with a telescopic means (9) between said connecting portion (71) or between said connecting portion (71) and said input shaft (3).

7. The disc-shaped continuously variable transmission according to claim 1 or 3, wherein the pressing device (7) comprises a rotating frame (72) arranged on the input shaft (3), a pressing ring device (6) is rotatably arranged on the rotating frame (72), and one side of the pressing ring device (6) is connected with the input shaft (3) or the rotating frame (72) through a telescopic device (9).

8. Disc-shaped continuously variable transmission according to claim 6, characterized in that drive balls are arranged at the contact of the pressure ring means (6) and the circular ring (14).

9. Disc-shaped continuously variable transmission according to claim 7, characterized in that drive balls are arranged at the contact of the pressure ring means (6) and the circular ring (14).

10. The disc-shaped continuously variable transmission according to claim 8, wherein a rolling groove (141) for rolling said drive balls (61) is provided in said circular ring (14), and said rolling groove (141) is provided in a circumferential direction in said circular ring (14).

11. The disc-shaped continuously variable transmission according to claim 9, wherein a rolling groove (141) for rolling said drive balls (61) is provided in said circular ring (14), and said rolling groove (141) is provided in a circumferential direction in said circular ring (14).

12. The disc-shaped continuously variable transmission according to claim 7, wherein the telescoping device (9) comprises an adjusting ring (91) sleeved on the input shaft (3), and the adjusting ring (91) is connected with one side of the pressure ring device (6) through a zipper (92).