Hydraulic control one-way valve
A technology of hydraulic control check valve and valve seat, which is applied in the direction of mining equipment, earthwork drilling, pillar/support, etc. It can solve the problems of normal operation and production of hydraulic supports, low service life, poor reliability, etc., and achieve simple installation, Easy maintenance and low resistance loss
Inactive Publication Date: 2018-02-09
HONGDA INTELLIGENT MACHINERY CO LTD
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Problems solved by technology
The currently used hydraulic control check valve has poor sealing reliability and low service life, and the hydraulic control check valve is composed of many structural parts. To replace the seals, many parts need to be disassembled, which is extremely inconvenient underground. Many problems plague the underground hydraulic support. normal working production
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[0019] The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.
[0020] Such as Figure 1 to Figure 5 As shown, the present invention provides a hydraulically controlled one-way valve, including a valve body 8, a valve sleeve 3, a valve core 6, a valve seat 4, a valve pad 5, a push rod 7, a first spring 1 and a second spring 2, The first spring 1 is sheathed on the push rod 7 . The valve sleeve 3, the valve core 6, the valve seat 4, the valve pad 5, the ejector rod 7, the first spring 1 and the second spring 2 constitute a plug-in hydraulic assembly, and the hydraulic assembly forms an integrated structure. The interior of the valve body 8 It has a valve cavi...
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The invention discloses a hydraulic control one-way valve. The hydraulic control one-way valve comprises a valve body, a valve sleeve, a top rod, a valve seat, a valve core and a valve pad, wherein the valve seat is arranged on the top rod in a sleeving mode, the valve core is arranged in the valve sleeve, and the valve pad is arranged on the valve seat and matched with the valve core. A first liquid passing hole allowing liquid to pass through is formed in the valve sleeve, the valve pad is prepared by adopting a metal material, the position between the valve core and the valve pad adopts hard sealing connection, and the sealing face of the valve core is a tapered face. The first liquid passing hole is obliquely formed in the valve sleeve, an included angle is formed between the axis of the first liquid passing hole and the axis of the valve sleeve, and the included angle is an acute angle. According to the hydraulic control one-way valve, both the valve core and the valve pad are prepared by adopting the metal materials, the position between the valve core and the valve pad is in hard sealing connection by adopting a metal loop wire, the sealing property is good, and the sealingreliability is high. The liquid passing hole in the valve sleeve adopts an oblique hole design, thus liquid can pass through more smoothly, and the resistance loss is less.
Description
technical field [0001] The invention belongs to coal mine fully mechanized mining hydraulic support, in particular, the invention relates to a 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. The currently used hydraulic control check valve has poor sealing reliability and low service life, and the hydraulic control check valve is composed of many structural parts. To replace the seals, many parts need to be disassembled, which is extremely inconvenient underground. Many problems plague the underground hydraulic support. normal working production. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention provides a hydraulically controlled one...
Claims
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IPC IPC(8): E21D15/51
CPCE21D15/51E21D15/512
Inventor 李子昂李福洪朱述群谢瑞
Owner HONGDA INTELLIGENT MACHINERY CO LTD