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Flow type balancing valve

A technology of balancing valve and flow, applied in fluid pressure actuating devices, servo motor components, mechanical equipment, etc., can solve problems such as affecting work efficiency, low-frequency load jitter and shock, and affecting the safety and reliability of the whole machine.

Active Publication Date: 2018-12-07
SHANGHAI ANGJI INSTR TECH
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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 is lowered and the load is raised, it passes through the same valve port, which will produce a throttling effect. In practice, when the load rises, the throttling effect is not needed, which seriously affects the efficiency of the operation.
In order to solve this problem, a check valve needs to be connected in parallel, which virtually increases the cost

Method used

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Embodiment Construction

[0024] 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.

[0025] A balance valve according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] 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 core 7, a second spring 8.

[0027] Specifically, the valve sleeve 1 has a valve sleeve through hole extending up and down. The throu...

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Abstract

The invention provides a flow type balancing valve. The flow type balancing valve comprises a valve sleeve, an end plug, a bush, a balancing valve element, a first spring, a spring seat, a one-way valve element and a second spring. According to the flow type balancing valve in the embodiment, machining is simple, sudden changes do not occur to the overflowing area, and the size is compact.

Description

technical field [0001] The invention relates to a valve assembly for a hydraulic device, in particular to a flow type 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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IPC IPC(8): F15B13/02
CPCF15B13/023
Inventor 不公告发明人
Owner SHANGHAI ANGJI INSTR TECH
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