CN-121993564-A - Infinitely variable speed has utmost point transmission formula derailleur

CN121993564ACN 121993564 ACN121993564 ACN 121993564ACN-121993564-A

Abstract

The stepless speed change polar transmission type transmission comprises a driving cone pulley assembly, a driven cone pulley assembly and a transmission steel belt, wherein the driving cone pulley assembly and the driven cone pulley assembly are formed by coaxially and fixedly connecting a fixed cone pulley and a movable cone pulley assembly and are connected through the steel belt, the movable cone pulley assembly consists of an internal gear, a movable cone pulley, a partition plate and a cone pulley support, the cone pulley support is formed by fixedly connecting a gear shaft with the fixed cone pulley, the internal gear is a cylindrical gear, an internal tooth I meshed with the cone pulley support is arranged on the wall of a central hole of the internal gear, an oil cylinder is formed by axially extending the outer side of one end of the internal gear, the partition plate provided with an oil hole is inserted into the oil cylinder, and the other end of the partition plate is connected with the movable cone pulley. The gear shifting device has the beneficial effects of simple structure and reasonable structure, effectively solves the problem that slipping sometimes occurs during large-torque transmission by means of meshing of the internal gear and the external gear, and realizes the functions of smooth gear shifting and large torque.

Inventors

LUO QILIANG
ZHANG ZIBING
YIN SHAOFENG
MA MING
GUO SHUHONG

Assignees

骆启良

Dates

Publication Date: 20260508
Application Date: 20240107

Claims (4)

1. The stepless speed change polar transmission comprises a driving cone pulley assembly (1), a driven cone pulley assembly (2) and a transmission steel belt (3), and is characterized in that the driving cone pulley assembly (1) is connected with the driven cone pulley assembly (2) through the transmission steel belt (3), the driving cone pulley assembly (1) and the driven cone pulley assembly (2) are identical in structure and are composed of a fixed cone pulley (4) and a movable cone pulley assembly (5), and the fixed cone pulley (4) is of a cone structure and is coaxially fixedly connected with the movable cone pulley assembly (5); the movable cone pulley assembly (5) consists of an internal gear (51), a movable cone pulley (52), a partition plate (53) and a cone pulley bracket (54), wherein the cone pulley bracket (54) is a gear shaft, the internal gear (51) is a cylindrical gear, an internal tooth I (511) is arranged on the hole wall of a central hole of the internal gear (51), the internal tooth I (511) is meshed with the cone pulley bracket (54), a cavity is formed by axially extending the outer side of one end of the internal gear (51), namely an oil cylinder (512), the partition plate (53) is inserted into the oil cylinder (512), the oil cylinder (512) is divided into a left oil cylinder and a right oil cylinder, oil holes (531) are respectively arranged at positions, corresponding to the left oil cylinder and the right oil cylinder, of the partition plate (53), and the other end of the partition plate (53) is connected with the movable cone pulley (52); The movable cone pulley (52) is of a truncated cone structure, a circular groove (521) is formed in the center of one end of the movable cone pulley (52), second internal teeth (5211) are formed in the inner wall of the circular groove (521), and the second internal teeth (5211) are meshed with the external teeth of the internal gear (51); the transmission steel belt is a multi-piece steel belt, and inner teeth are arranged on the inner side of the transmission steel belt and can be in meshed connection with the driving cone pulley assembly (1) and the driven cone pulley assembly (2); the end faces of the cone pulley bracket (54), the internal gear (51) and the movable cone pulley (52) corresponding to the fixed cone pulley (4) are conical surfaces.
2. The infinitely variable transmission of claim 1, wherein the baffle plate (53) and the oil cylinder (512) are provided with an oil seal (6) at the connection position.
3. The infinitely variable transmission of claim 1, wherein the outer diameter of the partition plate (53) is smaller than the inner diameter of the circular groove (521), and one end of the partition plate (53) far away from the oil cylinder (512) is fixedly connected with the inner bottom surface of the circular groove (521).
4. The infinitely variable transmission of claim 1, wherein the left cylinder is in communication with the left oil gallery and the right cylinder is in communication with the right oil gallery.

Description

Infinitely variable speed has utmost point transmission formula derailleur Technical Field The invention relates to a transmission structure, in particular to a stepless speed change polar transmission type transmission. Background With the progress of technology, the scenes of mechanical transmission equipment are more and more, such as the scenes of mechanical transmission equipment application can be seen in the aspects of mechanical processing equipment, logistics equipment, industrial machines, agricultural machines, automobiles and the like, in the process of mechanical transmission equipment application, the transmission efficiency and the transmission smoothness requirements of people on a mechanical transmission structure are also higher and higher, the current transmission equipment is provided with gear transmission, belt transmission, chain transmission and the like, but the transmission structures can not simultaneously meet the requirements of high transmission efficiency and smoothness, particularly for vehicles, the high transmission efficiency is pursued, the phenomenon of 'bump feeling' of the vehicles is avoided, and the phenomenon of slipping is avoided during high torque transmission, so that the design of a transmission device which simultaneously meets the requirements of high transmission efficiency and smoothness is very necessary. Disclosure of Invention Aiming at the problems existing in the prior art, the invention aims to provide a stepless speed change polar transmission type transmission, which adopts a gear hydraulic variable cone pulley to adjust the transmission ratio, and a steel belt is connected with a driving type transmission to ensure that the transmission with large torque force is ensured without slipping. In order to achieve the above object, the present invention is realized by the following technical scheme: The stepless speed change polar transmission type transmission comprises a driving cone pulley assembly, a driven cone pulley assembly and a transmission steel belt, wherein the driving cone pulley assembly and the driven cone pulley assembly are connected through the transmission steel belt, the driving cone pulley assembly and the driven cone pulley assembly are identical in structure and are composed of a fixed cone pulley and a movable cone pulley assembly, and the fixed cone pulley is of a cone structure and is coaxially fixedly connected with the movable cone pulley assembly; the movable cone pulley assembly consists of an internal gear, a movable cone pulley, a partition plate and a cone pulley bracket, wherein the cone pulley bracket is a gear shaft, the internal gear is a cylindrical gear, an internal tooth I is arranged on the hole wall of a central hole of the internal gear, the internal tooth I is meshed with the cone pulley bracket, the outer side of one end of the internal gear extends along the axial direction to form a cavity, namely an oil cylinder, the partition plate is inserted into the oil cylinder, the oil cylinder is divided into a left oil cylinder and a right oil cylinder, oil holes are respectively arranged at positions of the partition plate corresponding to the left oil cylinder and the right oil cylinder, and the other end of the partition plate is connected with the movable cone pulley; The movable cone pulley is of a truncated cone structure, a circular groove is formed in the center of one end of the movable cone pulley, and second internal teeth are meshed with external teeth of the internal gear on the inner wall of the circular groove; the transmission steel belt is a multi-piece steel belt, and inner teeth are arranged on the inner side of the transmission steel belt and can be in meshed connection with the driving cone pulley assembly and the driven cone pulley assembly; the end surfaces of the cone pulley bracket, the internal gear and the movable cone pulley corresponding to the fixed cone pulley are conical surfaces, Furthermore, an oil seal is arranged at the connecting position of the partition plate and the oil cylinder. Further, the outer diameter of the partition plate is smaller than the inner diameter of the circular groove, and one end, away from the oil cylinder, of the partition plate is fixedly connected with the inner bottom surface of the circular groove. Further, the left oil cylinder is communicated with the left oil duct, and the right oil cylinder is communicated with the right oil duct. Advantageous effects Compared with the prior art, the invention has the beneficial effects of simple structure and reasonable structure, improves the existing CVT, effectively solves the problem that slipping sometimes occurs during large-torque transmission by adopting an internal and external gear meshing mode, and realizes the functions of smooth gear shifting and large torque. Drawings FIG. 1 is an exploded view of the present invention; FIG. 2 is a schematic diagram of the transmission of the present invention with