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A Pressure Relief Valve with Adjusting Device to Suppress Howling

A pressure relief valve and adjustment technology, applied in the field of pressure relief valves, can solve the problems of large local pressure difference, large adjustment pressure interval, low precision, etc., and achieve the effect of suppressing whistling and precise adjustment

Active Publication Date: 2022-05-13
JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0002] In the pressure relief valve used in the past, the high-pressure oil flows out through the gap between the spring seat and the valve body after passing through the steel ball. The adjustment method of opening pressure is relatively complicated, the adjustment pressure interval is large, the precision is low, and it is not easy to use

Method used

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  • A Pressure Relief Valve with Adjusting Device to Suppress Howling
  • A Pressure Relief Valve with Adjusting Device to Suppress Howling

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] The structure of the pressure relief valve with adjustment device to suppress howling is as follows: figure 1 shown. Including steel ball 1, spring seat 2, sealing ring 3, protection ring 4, valve body 5, valve core 6, adjusting gasket 7, hexagon socket cap screw 8, adjusting stud 9, spring 10, valve seat 11; The adjusting stud 9 is threaded into the valve body 5 and contacts the left end of the valve core 6, the adjusting gasket 7 and the adjusting stud 9 form a gear internal mesh, and the hexagon socket head screw 8 is screwed through the through hole of the adjusting gasket 7. into the valve body 5.

[0024] Working principle: When the system pressure rises, the internal high-pressure return oil enters the pressure relief valve through the oil hole and acts on the steel ball 1. When the force is greater than the force of the spring 10, the steel b...

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Abstract

The invention belongs to the field of hydraulic engineering, and relates to a pressure relief valve with an adjustment device capable of suppressing howling. A spring (10) is sleeved on a valve core (6), a spring seat (2) is sleeved on the spring (10), and the spring seat (2), the spring (10) and the valve core (6) are installed in the valve body (5), and the valve seat (11) is inserted into the valve body (5) and positioned in contact with the valve body (5) through the raised end surface; adjust The stud (9) is threaded into the valve body (5) and contacts with the left end of the valve core (6), the adjusting gasket (7) forms a gear internal mesh with the adjusting stud (9), and the hexagon socket cap screw ( 8) Screw into the valve body (5) through the through hole of the adjusting washer (7), so as to constrain the degree of freedom of rotation of the adjusting stud (9) and the adjusting washer (7) along the thread direction. The invention has reliable structure and convenient pressure adjustment.

Description

technical field [0001] The invention belongs to the field of hydraulic engineering, and relates to a pressure relief valve with an adjustment device capable of suppressing howling. Background technique [0002] In the pressure relief valve used in the past, the high-pressure oil flows out through the gap between the spring seat and the valve body after passing through the steel ball. The adjustment method of the opening pressure is relatively complicated, the adjustment pressure interval is large, the precision is low, and it is not easy to use. Contents of the invention [0003] Purpose of the present invention: [0004] The invention proposes a pressure relief valve with an adjustment device that can suppress howling. In the design of the pressure relief valve, through the reasonable layout of the position of the oil hole and the combined use of adjustment studs, gear internal meshing gaskets and screws, the pressure relief valve is realized. Suppression of howling whe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
CPCF15B13/024
Inventor 邱海灵胡庆刚贾宸张嘉睿袁侃辉
Owner JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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