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An integrated high pressure and large flow proportional overflow unloading valve

A large-flow, overflow-type technology, applied in the direction of fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve the problems of large system pressure shock, affecting the working capacity of valves, affecting the reliability of pumping stations, etc., and achieve reduction System pressure shock, simple and reasonable structure, and the effect of reducing unloading time

Active Publication Date: 2022-04-01
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] At present, the technical difficulties faced by fully mechanized mining liquid supply technology are mainly reflected in two aspects: on the one hand, the liquid supply capacity is insufficient: large mining height work faces higher requirements on the liquid supply flow and pressure of the support liquid supply system
On the other hand, the precise control resolution of the liquid supply system is insufficient: automated and intelligent work faces increasingly higher and higher precision control requirements for the flow and pressure of the liquid supply system, in order to adapt to fast follow-up, straightness control and timely support Waiting for the needs of working face equipment intelligent drive
However, the existing liquid supply systems all use the on-off unloading valve switch to control the high-pressure and large-flow emulsion pump station. It will affect the working ability of the valve and the reliability of the pumping station, so it is necessary to improve the control effect of the liquid supply system through a high-pressure and large-flow proportional overflow unloading valve

Method used

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  • An integrated high pressure and large flow proportional overflow unloading valve
  • An integrated high pressure and large flow proportional overflow unloading valve
  • An integrated high pressure and large flow proportional overflow unloading valve

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Embodiment Construction

[0044] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings, in which several embodiments of the present invention are shown, but the present invention can be realized in different forms, and is not limited to the text described On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0045] It should be noted that when an element is said to be "fixed on" another element, it can be directly on the other element or there can be an intervening element, and when an element is said to be "connected" to another element, it can be Directly connected to another element or possibly intervening elements at the same time, the terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

[0046] Unless otherwise defined, all technical and scien...

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Abstract

The invention provides an integrated high-pressure and large-flow proportional overflow unloading valve, which includes a valve body and a cartridge check valve arranged in the valve body, an unloading main valve, an overflow pilot valve, a liquid inlet mechanism, and a control piston mechanism and electro-mechanical conversion mechanism. It can reduce the pressure shock of the system when the high-pressure and large-flow liquid supply system adopts the switch unloading valve to unload, and prolong the service life of the unloading valve group; it can realize the proportional unloading of the pump station, and the control piston can realize rapid discharge after the proportional unloading. Unloading function: Through the plug-in structure design, the one-way function, unloading function and overflow function are integrated together, with compact volume, simple and reasonable structure, and low manufacturing cost.

Description

technical field [0001] The invention relates to the field of high-pressure, large-flow, and high-water-based hydraulic components, in particular to an integrated high-pressure, large-flow proportional overflow unloading valve. Background technique [0002] At present, the technical difficulties faced by fully mechanized mining liquid supply technology are mainly reflected in two aspects: on the one hand, the liquid supply capacity is insufficient: large mining height work faces higher requirements on the liquid supply flow and pressure of the support liquid supply system. On the other hand, the precise control resolution of the liquid supply system is insufficient: automated and intelligent work faces increasingly higher and higher precision control requirements for the flow and pressure of the liquid supply system, in order to adapt to fast follow-up, straightness control and timely support Wait for the needs of the working face to be equipped with intelligent drives. At p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
CPCF15B13/02F15B2013/004
Inventor 赵继云张晓春于鸣泉曹超黄笛王云飞
Owner CHINA UNIV OF MINING & TECH
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