Belt wheel mechanism, continuously variable transmission and automobile

A pulley mechanism and pulley technology, applied in the direction of belts/chains/gears, mechanical equipment, transmission devices, etc., can solve the problems of large spline tooth side clearance, large sliding friction resistance, long spline contact length, etc., to achieve The fit clearance is small, the friction resistance is small, and the effect of improving the performance of the pulley

Inactive Publication Date: 2018-12-28
SAIC MOTOR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the tooth side clearance of the spline is large, which is prone to vibration and impact, and the contact length of the spline is longer, and the sliding friction resistance is greater, resulting in a decrease in sliding efficiency

Method used

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  • Belt wheel mechanism, continuously variable transmission and automobile
  • Belt wheel mechanism, continuously variable transmission and automobile
  • Belt wheel mechanism, continuously variable transmission and automobile

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Embodiment Construction

[0030] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] In this article, terms such as "upper, lower, left, right" are established based on the positional relationship shown in the drawings, and the corresponding positional relationship may also change accordingly depending on the drawings. It is understood as an absolute limitation on the scope of protection; moreover, relative terms such as "first" and "second" are only used to distinguish one from another component with the same name, and do not necessarily require or No such actual relationship or order between these components is implied.

[0032] Please refer to figure 1 , figure 2 , image 3 , figure 1 A schematic diagram of an exploded structure of a pulley mechanism provided by an embodiment of the present invention;...

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Abstract

The invention discloses a belt wheel mechanism, a continuously variable transmission and an automobile. The belt wheel mechanism comprises a belt wheel (1), a belt wheel shaft (2) and a sliding part (3). The belt wheel (1) is provided with a first V-shaped roller path (1-1), and the belt wheel shaft (2) is provided with a second V-shaped roller path (2-1). The first V-shaped roller path (1-1) andthe second V-shaped roller path (2-1) constitute a pair of V-shaped roller path guide rails for containing the sliding part (3). The sliding part (3) comprises a first group of pin rollers (3-1) and asecond group of pin rollers (3-2), the first group of pin rollers (3-1) and the second group of pin rollers (3-2) are arranged in an X-shaped crossing mode and arranged alternately and can roll in the V-shaped roller path guide rails, and the belt wheel (1) can move in the axial direction of the sliding part (3) to change the speed ratio and transmit torque. The belt wheel mechanism can transmithigher torque, improves the system rigidity, is small in friction resistance and can remarkably reduce the problems of shock and impact in the belt wheel sliding process.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a pulley mechanism of an automobile continuously variable transmission. The present invention also relates to a continuously variable transmission and an automobile provided with the pulley mechanism. Background technique [0002] The pulley mechanism of the continuously variable transmission is mainly composed of a pulley, a pulley shaft and a sliding part connecting the two parts. During operation, the pulley moves axially along the pulley shaft and the sliding part to change the speed ratio and transmit torque through the sliding part. The existing pulley mechanisms mainly include the following types: [0003] In the first type, the inner hole of the pulley and the shaft diameter of the pulley shaft are provided with an arc-shaped raceway, and a plurality of short rollers are built in to form a sliding part. This structure has a large number of rollers and is not easy to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/02F16H7/20
CPCF16H7/02F16H7/20
Inventor 刘飞涛王瑾裴晓锐李金明李亚娟张瑞张军
Owner SAIC MOTOR
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