Tensioner

A tensioner, tensioning arm technology, applied in clutches, one-way clutches, belts/chains/gears, etc., can solve the problems of uneven wear of damping blocks, short service life, unstable movement, etc.

Active Publication Date: 2020-04-10
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a tensioner, which is used to realize the asymmetrical damping effect and solve the problems of uneven wear, short service life and unstable movement of the existing damping block

Method used

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Embodiment Construction

[0048]In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0049] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct ...

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PUM

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Abstract

The invention belongs to the technical field of wheel train transmission, and discloses a tensioner. The tensioner comprises a belt wheel assembly, a fixing mechanism, a reset piece, a tensioning arm,a one-way bearing and a damping fin, wherein a belt is wound on the belt wheel assembly; the reset piece is arranged on the fixing mechanism; the belt wheel assembly is rotationally arranged at one end of the tensioning arm, the other end of the tensioning arm is arranged in the fixing mechanism and can rotate relative to the fixing mechanism, and the reset piece is abutted against the fixing mechanism and the tensioning arm; the one-way bearing is arranged on the tensioning arm, and the rotating direction of the one-way bearing is the unloading direction of the tensioner; and one side of thedamping fin is connected to the fixing mechanism, the other side of the damping fin is abutted against the one-way bearing, the damping fin is of a plane structure, and the sliding friction force between the damping fin and the one-way bearing is larger than the rolling friction force of the one-way bearing. According to the tensioner, the damping fin is of the plane structure, the damping fin isuniformly abraded, the friction speed of the damping fin is reduced, the service life is prolonged, and the movement is more stable and reliable due to the fact that the abrasion is small in a long-time use process.

Description

technical field [0001] The invention relates to the technical field of gear train transmission, in particular to a tensioner. Background technique [0002] The tensioner specifically refers to the rotary automatic tensioner. Its main function is to be arranged on the loose side of the belt drive system to maintain the tension of the belt and ensure the normal transmission of system power. Through the swing of the tensioning arm, the length change of the belt after wear and aging is automatically compensated to eliminate the vibration and noise in the system caused by the belt elongation or swing. [0003] According to the different moving directions of the belt, the automatic tensioner has a loading stage and an unloading stage. In the loading stage, the tension arm rotates to generate friction torque. The total torque output by the tensioner in the loading stage is equal to the sum of the spring torque and the loading damping torque. The loading direction is the rotation d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/08F16D41/064
CPCF16D41/064F16H7/08F16H2007/0802F16H2007/0842
Inventor 卜祥玮黄鹏杜祥宁
Owner WEICHAI POWER CO LTD
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