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Dual-cavity semi-ring surface type power distribution continuously variable transmission

A continuously variable transmission, semi-toroidal technology, applied in belts/chains/gears, mechanical equipment, transmissions, etc., can solve the problem that the torque cannot meet the demand of high torque, meet the demand of high torque, improve the transmission Efficiency, the effect of overcoming the limit of transmission torque limit

Active Publication Date: 2011-08-10
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the shear limit of traction oil and the limit of bending strength of moving component materials, the torque transmitted only by the traction semi-torusal continuously variable transmission cannot meet the demand for large torque when construction machinery is working

Method used

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  • Dual-cavity semi-ring surface type power distribution continuously variable transmission
  • Dual-cavity semi-ring surface type power distribution continuously variable transmission
  • Dual-cavity semi-ring surface type power distribution continuously variable transmission

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Embodiment Construction

[0013] see figure 1 , 2 , double-cavity semi-torusal type power split continuously variable transmission, including a set of traction-driven double-cavity semi-torusal type continuously variable transmission unit, a set of two-degree-of-freedom differential gear train, fixed-axis gear train and output reversing mechanism . Among them, the double-chamber half-torus type continuously variable transmission unit includes 2 input cones (6a, 6b), 2 output cones (8a, 8b) and 6 power transmission rollers (7), the input cone (6a ) and the output cone (8a) form a semi-annular cavity, in which three power transmission rollers (7) are symmetrically distributed; similarly, the input cone (6b) and the output cone (8b) A semi-annular cavity is formed, and three power transmission rollers (7) are symmetrically distributed in the cavity; the fixed-axis gear train consists of the first gear (9), the eighth gear (29), the first countershaft (28 ), the seventh gear (26), the second reversing ...

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Abstract

The invention relates to a dual-cavity semi-ring surface type power distribution continuously variable transmission which comprises a dual-cavity semi-ring surface type continuously variable unit driven by traction, an ordinary gear train, a two-degree-of-freedom differential gear train and a reversing mechanism, wherein input power is transmitted by two paths, one path of input power is transmitted to a center shaft of the differential gear train from a main shaft, the other path of input power is transmitted to a second gear of the differential gear train through the dual-cavity semi-ring surface type continuously variable unit and the ordinary gear train, and the two parts of power are output through a planet carrier after being converged at the differential gear train. The invention ensures that one part of input torque is born by a second main shaft to reduce the torque born by the dual-cavity semi-ring surface type continuously variable unit, thereby having a capacity of transmitting a large torque. In the design, odd gears in the ordinary gear train are externally meshed, thus, power distribution is realized inside a closed system, and large torque output of the differential gear train is ensured. In order to meet the requirement for advancing and recessing during the operation of engineering machinery, the reversing mechanism is arranged in the dual-cavity semi-ring surface type power distribution continuously variable transmission during the output.

Description

Technical field [0001] The invention involves the transmission mechanism in the transmission system. Specifically, it is a stepless transmission. Background technique [0002] The metal band -free transmission used in the car is now loaded. Due to the limits of the friction coefficient of the metal and the restrictions of the pull -up resistance, it has not achieved breakthrough progress in large torque transmission.Compared with the metal band -no -transmission, the traction semi -semi -surface -shaped stepless transmission uses the traction performance of the traction performance of the input cone, passing wheel, and output cone contact with the help of traction oilThe friction conditions are improved, which improves the bearing capacity of a semi -ring -shaped transmission, and is suitable for medium and large displacement cars.Due to the limitation of the bending strength limit of the traction oil shear and the moving component material, the torque transmitted by the traction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/08
Inventor 张庆功李华姚进
Owner SICHUAN UNIV
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