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An Improved Balance Valve

A balancing valve and improved technology, applied in servo motor components, mechanical equipment, fluid pressure actuating devices, etc., can solve the problem of high frequency of use of valve core or valve seat, affecting the safety and reliability of the whole machine, low-frequency load jitter and shock And other issues

Active Publication Date: 2019-11-19
ZHEJIANG DABLIN VALVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing hydraulic balance valve generally has such a shortcoming: when the load is lowered, due to the characteristics of sudden changes in the flow area of ​​the valve port of the hydraulic balance valve, it will cause low-frequency jitter and impact on the load, resulting in system instability and affecting the overall performance. Machine safety and reliability
When the load rises and falls, it passes through the same valve port, that is, the valve core and valve seat that form this valve port must be opened and closed once every time it rises and falls, which will cause the valve core or valve seat to be used too frequently , thereby shortening the service life of

Method used

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Embodiment Construction

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0024] A balance valve according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] like Figure 1 to Figure 3 As shown, a balance valve according to an embodiment of the present invention includes: a valve sleeve 1, an end plug 2, a bushing 3, a balance valve core 4, a first spring 5, a spring seat 6, a one-way valve plate 7, a second Spring 8, spring seat 9.

[0026] Specifically, the valve sleeve 1 has a valve sleeve through hole extending up and ...

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Abstract

The invention provides an improved type balance valve which comprises a valve sleeve, an end plug, a liner, a balance valve element, a first spring, a spring seat, a one-way valve sheet and a second spring. The improved type balance valve according to the embodiment of the invention is simple to process, compact in size and long in service life and does not have mutation in passage area.

Description

technical field [0001] The invention relates to a valve assembly for a hydraulic device, in particular to an improved balance valve. Background technique [0002] In modern construction machinery, construction machinery and other mechanical equipment, a large number of lifting hydraulic circuits are used. Among them, the balance valve is the key hydraulic component that controls the work of the hydraulic cylinder in the lifting circuit. The performance of the balance valve directly affects the performance of the main engine. [0003] The existing hydraulic balance valve generally has such a shortcoming: when the load is lowered, due to the characteristics of sudden changes in the flow area of ​​the valve port of the hydraulic balance valve, it will cause low-frequency jitter and impact on the load, resulting in system instability and affecting the overall performance. Machine safety and reliability. When the load is lowered and the load is raised, it passes through the same...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/042
CPCF15B13/023F15B13/029F15B13/0426
Inventor 不公告发明人
Owner ZHEJIANG DABLIN VALVE CO LTD