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Low noise cone valve

A low-noise, poppet valve technology, applied in fluid pressure actuation devices, servo motor components, fluid pressure actuation system components, etc., can solve problems such as poppet valve noise, achieve cavitation suppression, high stability, and improve stability sexual effect

Active Publication Date: 2015-09-09
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the noise and stability problems of the cone valve in the background technology, the purpose of the present invention is to provide a low-noise cone valve, which realizes the low noise of the valve, and improves the stability of the valve by balancing the hydraulic power of the valve core

Method used

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with drawings and embodiments.

[0021] Such as figure 1 , figure 2 , image 3 As shown, the present invention includes a valve body 1, a spring 2, a valve sleeve 4 and a valve core 6; the spring 2, the valve sleeve 4 and the valve core 6 are coaxially installed in the center hole of the lower part of the valve body 1 sequentially from top to bottom, and the valve body 1. There is a central hole on the bottom surface as the oil inlet 11. The valve sleeve 4 is installed in the central hole of the valve body 1. The valve sleeve 4 and the valve body 1 are connected by threads. Sliding fit with the valve sleeve 4, the valve core 6 is connected with the bottom of the center hole of the valve body 1 through the spring 2.

[0022] Such as image 3 As shown, the upper and lower sides of the valve sleeve 4 are respectively provided with a valve sleeve oil outlet 3 and a valve sleeve oil inlet 7, and the cy...

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Abstract

The invention discloses a low noise cone valve. A center hole working as an oil inlet is formed in the bottom surface of a valve body; a valve sleeve is disposed in the center hole of the valve body; the valve sleeve is in a threaded connection with the valve body; a valve core is covered with the valve sleeve and in sliding cooperation with the valve sleeve; the valve core is connected to the bottom of the center hole of the valve body; a valve sleeve oil outlet and a valve sleeve oil inlet are respectively formed in the upper and lower side surfaces of the valve sleeve; an oil outlet communicated with the valve sleeve oil outlet is formed in the side wall of the valve body on the valve sleeve oil outlet; an annular gap channel communicated with the valve sleeve oil inlet is formed in the side wall of the valve body on the valve sleeve oil inlet; a gap forming a valve sleeve front throttling port is formed between the front end of the valve sleeve and the inner wall of the gap channel; and the oil inlet in the bottom surface of the valve body is connected with the gap channel via the valve sleeve throttling port. The low noise cone valve is advantaged by simple structure, great manufacturability and simple operation; and valve noise can be reduced.

Description

technical field [0001] The invention relates to a cone valve, in particular to a low-noise cone valve. Background technique [0002] The cone valve is one of the important components in the hydraulic system. It has a simple structure, a large contact stress between the valve core and the valve seat, good sealing performance, and high sensitivity. However, the pressure gradient at the valve port of the cone valve is large, often accompanied by cavitation. In practical applications, there are disadvantages such as high noise and poor stability, which greatly restrict the application of cone valves in hydraulic systems. [0003] The traditional cone valve design mostly adopts the single cone throttling method, and the entire pressure difference is distributed at the valve port of the cone valve. This design will lead to serious cavitation at the valve port, resulting in huge cavitation noise, which has a great impact on the cone valve. Stability can also cause adverse effects,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F15B21/04
CPCF15B13/02F15B21/04
Inventor 吉晨邹俊杨华勇
Owner ZHEJIANG UNIV
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