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a hydraulic tensioner

A technology of hydraulic tensioner and locking end, which is applied in the field of transmission system, can solve the problems such as the hydraulic tensioner cannot be limited, and achieve the effects of easy switching, simple operation and low assembly difficulty

Active Publication Date: 2019-02-01
HUBEI SANJIANG BOATS SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The embodiment of the present invention provides a hydraulic tensioner, which solves the technical problem that the hydraulic tensioner cannot be limited during assembly in the prior art, realizes the effective position limitation of the hydraulic tensioner, and reduces the pressure of the hydraulic tensioner. The difficulty of assembly

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Embodiment Construction

[0025] The embodiment of the present invention provides a hydraulic tensioner, which solves the technical problem that the hydraulic tensioner cannot be limited during assembly in the prior art, realizes the effective position limitation of the hydraulic tensioner, and reduces the pressure of the hydraulic tensioner. difficulty of assembly.

[0026] see figure 1 , the embodiment of the present invention provides a hydraulic tensioner, the hydraulic tensioner includes: a housing 1, a steel ball 3, a one-way valve seat 2, a one-way valve cover 4, a plunger 6, an inner screw plug 5, Return spring 11 , push post 10 , plunger cover 9 , first circlip 8 and second circlip 7 . The housing 1 is provided with an inner cavity, and the steel ball 3 , the one-way valve seat 2 , the one-way valve cover 4 , the plunger 6 , the top post 10 , the inner screw plug 5 and the return spring 11 are arranged in the inner cavity of the housing 1 . The one-way valve seat 2 is arranged at the innermo...

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Abstract

The invention relates to the technical field of transmission systems, in particular to a hydraulic tensioner. The hydraulic tensioner comprises a shell, a plunger, a first elastic check ring and a second elastic check ring. The plunger is arranged in the shell and reciprocates along an inner cavity of the shell. A first limiting groove and a second limiting groove are formed in the side wall of the inner cavity of the shell. The first elastic check ring is arranged in the first limiting groove. The second elastic check ring is arranged in the second limiting groove. A third limiting groove and a fourth limiting groove are formed in the plunger. The third limiting groove is matched with the first elastic check ring. When the plunger and the shell move in the opposite directions to the maximum positions, the first elastic check ring enters the third limiting groove. The fourth limiting groove is matched with the second elastic check ring. When the plunger and the shell move away in the reverse directions to the maximum positions, the second elastic check ring enters the fourth limiting groove. According to the hydraulic tensioner, the plunger can only move between the third limiting groove and the fourth limiting groove, and the assembling difficulty of the hydraulic tensioner is lowered.

Description

technical field [0001] The invention relates to the technical field of transmission systems, in particular to a hydraulic tensioner. Background technique [0002] The tensioner is a commonly used holding device on the belt and chain transmission system. Its characteristic is to keep the belt and chain with proper tension during the transmission process, so as to avoid the belt slipping, or to prevent the synchronous belt from skipping teeth or detaching the teeth. Pull it out, or prevent the chain from loosening and falling off, and reduce the wear and tear of the sprocket and chain. The structure of the tensioner is various, which generally includes a fixed structure and an elastic automatic adjustment structure. Automatic rebound controls the tension of belts and chains. Most domestic chain tensioners that can be automatically adjusted use hydraulic spring structures. The existing hydraulic tensioner does not have a position limiting function, and cannot effectively limi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H7/08
CPCF16H7/08F16H2007/0812F16H2007/0842
Inventor 程玄耿巍麟顾冰
Owner HUBEI SANJIANG BOATS SCI & TECH