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Hydraulic rod and hydraulic tensioner with hydraulic rod

A technology of hydraulic rods and shells, applied in the directions of belts/chains/gears, mechanical equipment, transmission devices, etc., can solve the problems of hydraulic tensioner failure and cylinder falling off, and achieve the effect of improving the pulling force and preventing failure.

Pending Publication Date: 2019-01-11
GATES UNITTA POWER TRANSMISSION SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The main function of the hydraulic tensioner in the automotive belt transmission system is to tension the transmission belt to ensure the normal operation of water pumps, air-conditioning compressors or generators. The structure of the hydraulic tensioner currently on the market is as follows: In the Japanese patent of JP 2000-205356, the cylinder body and the housing of the hydraulic tensioner are generally connected by an interference fit. This structure has the risk of the cylinder falling off the housing, resulting in failure of the hydraulic tensioner

Method used

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  • Hydraulic rod and hydraulic tensioner with hydraulic rod
  • Hydraulic rod and hydraulic tensioner with hydraulic rod
  • Hydraulic rod and hydraulic tensioner with hydraulic rod

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Embodiment Construction

[0030] The following is a detailed description of specific embodiments of the present invention based on the drawings.

[0031] like figure 1 As shown, the hydraulic rod has a barrel-shaped housing 1, the fixed end of the housing 1 is closed, and the other end opposite to the fixed end is open. The fixed end of the housing 1 is provided with a through hole, the bushing 2 is put into the through hole, and the pin sleeve 3 which is located in the bushing 2 and can rotate around the bushing 2; the pin (not shown) connects the housing through the pin sleeve 3 1 is connected to a fixed part, such as the engine body, or the mounting surface of the engine bracket, so that the housing 1 can swing around the central axis of the bushing 2.

[0032] A connecting portion is provided inside the fixed end of the housing 1 , and the cylindrical body 4 is located in the housing and its lower end is fixedly connected to the housing 1 at the connecting portion. A one-way valve 13 is arranged ...

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Abstract

The invention relates to a hydraulic rod and a hydraulic tensioner with the hydraulic rod. Compared with a traditional hydraulic rod or hydraulic tensioner, the hydraulic rod and the hydraulic tensioner are characterized in that a connecting piece is additionally arranged between a cylinder body and a shell body of the hydraulic rod, so that the cylinder body is prevented from being separated fromthe shell body, and the separating pulling force of the cylinder body is increased.

Description

technical field [0001] The invention relates to a hydraulic rod and a hydraulic tensioner with the hydraulic rod, in particular to a hydraulic tensioner used for tensioning a belt in a belt transmission system of an automobile. Background technique [0002] The main function of the hydraulic tensioner in the automotive belt transmission system is to tension the transmission belt to ensure the normal operation of water pumps, air-conditioning compressors or generators. The structure of the hydraulic tensioner currently on the market is as follows: In Japanese Patent Laid-Open No. 2000-205356, the cylinder body and the housing of the hydraulic tensioner are generally connected by an interference fit. This structure has the risk of the cylinder falling off the housing, resulting in failure of the hydraulic tensioner. Contents of the invention [0003] The main purpose of the present invention is to provide a hydraulic rod with a new structure and a hydraulic tensioner with th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/12F16H7/18
CPCF16H7/12F16H7/18F16H2007/0812
Inventor 傅红良骆晨浩
Owner GATES UNITTA POWER TRANSMISSION SHANGHAI
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