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High-flow hydraulic control one-way valve

A hydraulically controlled check valve, large flow technology, applied in mining equipment, earthwork drilling, pillars/supports, etc., can solve the problems of low service life and adaptability, difficult maintenance, and high hydraulic shock of the hydraulically controlled check valve , to achieve the effect of easy installation and maintenance, long service life and high integration

Inactive Publication Date: 2012-02-29
JULONG GROUP WUHU XINGLONG HYDRAULIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a large flow hydraulic control check valve to solve the problems of high hydraulic shock, low service life and adaptability and difficult maintenance of the column hydraulic control check valve in the prior art

Method used

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Embodiment Construction

[0009] refer to figure 1 , a large flow hydraulic control one-way valve, including a valve body 1, a valve sleeve 2, characterized in that: the valve sleeve 2 is threaded in the valve body 1 of the plate structure, and the valve sleeve 2 is provided with a large spring 3 , the valve core 4 is pressed by the large spring 3 and cooperates with the valve seat 5 to form a metal ring line seal; the valve seat 5 is threaded on the valve sleeve 2, the inner side of the valve seat 5 has a spring 6, and there is a push rod 7 between the springs 6, and the top One end of the rod 7 is limited inside the valve seat 5 , the other end of the push rod 7 is threadedly fixed on the piston 8 , and the other end of the valve body 1 is threadedly connected with a joint 9 .

[0010] As shown in the figure, the A' working port is sealed on the interface of the lower chamber of the column through four bolts fixing the plane, and the PA port is connected to the working fluid chamber of the reversing ...

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Abstract

The invention discloses a high-flow hydraulic control one-way valve, which comprises a valve body and a valve bush, wherein the valve bush is in threaded connection with the interior of the valve body of a plate-like structure, a big spring is arranged in the valve bush, and a valve core is matched with a valve seat under the pressure of the big spring to form metallic loop line seal; and the valve seat is in threaded connection with the valve bush, springs are arranged inside the valve seat, an ejection rod is arranged between the springs, one end of the ejection rod is limited in the valve seat, the other end of the ejection rod is fixed on a piston by screw threads, and the other end of the valve body is in threaded connection with a joint. The hydraulic control one-way valve is high in integration level, strong in reliability, long in service life and easy in installation and maintenance; and the upright post hydraulic control one-way valve is repaired directly, simply, conveniently and reliably by changing a plug-in hydraulic assembly.

Description

technical field [0001] The invention relates to a hydraulically controlled one-way valve, in particular to a large flow hydraulically controlled one-way valve. Background technique [0002] Since the beginning of fully mechanized mining in coal mines, due to the different coal mining environments, there have been stricter requirements on hydraulic supports and supporting equipment. Hydraulic support technology has been rapidly developing towards high-end. The support has exceeded 7 meters, and the cylinder diameter of the column has exceeded 0.5 meters. Such a large support urgently needs a hydraulic control check valve with large flow rate and reliable performance to control the lifting. After independent development, we have launched a column hydraulic control check valve with large flow rate, long service life and convenient maintenance. It adopts a plug-in hard seal structure, which can adapt to high pressure and large flow conditions. Both surfaces adopt a metal ring h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D15/51
Inventor 李福洪朱述群
Owner JULONG GROUP WUHU XINGLONG HYDRAULIC