Hydraulic control one-way valve for hydraulic system
A technology of hydraulically controlled check valve and hydraulic system, applied in the direction of control valve, valve device, functional valve type, etc., can solve the problems such as the failure of the sealing pair of the valve to match, affect the sealing performance of the valve, and bend on business trips, so as to ensure reliability. , the effect of ensuring stability and reducing maintenance costs
Inactive Publication Date: 2017-02-15
EAST CHINA MINING EQUIP CO LTD
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Problems solved by technology
Because there is a direct relationship between the sealing pair and the valve stem, the valve stem is slender, and the gravity at both ends is very different, so it is easy to bend during the valve's multiple actions, which affects the sealing pair of the valve. Lead to sealing failure; at the same time, the valve stem is easily subjected to the pressure applied during processing, and may be bent on business trips, which will eventually affect the sealing performance of the valve
Method used
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[0014] 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.
[0015] Such as Figure 1 to Figure 3 As shown, a hydraulic control check valve for a hydraulic system includes a valve core, a valve stem 9 and a valve body 13. The left end of the valve body 13 is provided with a valve plug 1 and an end sleeve 4, and the right end of the valve body 13 is provided with There is a screw plug 12, and the valve body 13 is provided with an oil outlet, an oil inlet and an oil control port in turn from left to right, and the oil outlet, the oil inlet and the oil control port are installed in pairs on the valve body 13 The upper and lower sides of the upper and lower si...
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The invention discloses a hydraulic control one-way valve for a hydraulic system, and relates to the field of fully-mechanized coal mining hydraulic equipment. The hydraulic control one-way valve comprises a valve element, a valve rod and a valve body; a valve plug and an end sleeve are arranged at the left end of the valve body, a plug screw is arranged at the right end of the valve body, and the valve body is sequentially provided with an oil outlet, an oil inlet and an oil control opening from left to right; the valve rod is installed in a cavity inside the valve body, a first spring is arranged in the end plug, a second spring is arranged in the end sleeve, and the first spring and the second spring are electrically connected with the valve rod; the valve rod is sleeved with a guide sleeve, a valve sleeve is arranged in the valve body and connected to the valve rod in a sleeving manner, and the left end of the valve rod is sleeved with a spring base; the valve rod penetrates the spring base, a nut is installed on the part, extending out of the spring base, of the valve rod, and the valve element is arranged on the valve rod in a sleeving manner and located outside the valve sleeve; a piston is arranged at the portion, below the oil control opening, of the cavity, and the right end of the valve rod abuts against the left end face of the piston. By means of the hydraulic control one-way valve, the fully-mechanized coal mining working efficiency is improved, the maintaining cost is reduced in a multiplied manner, and the demonstration effect is more stable and reliable.
Description
technical field [0001] The invention relates to the field of fully mechanized mining hydraulic equipment, in particular, the invention relates to a hydraulic control check valve for a hydraulic system. Background technique [0002] In the existing hydraulically controlled one-way valve, the valve core is contained in the valve sleeve, so that the space for the liquid inlet and return is narrow, and the liquid inlet and return are somewhat affected. Moreover, the gap between the large end and the small end of the valve stem is too large, so that the valve stem will generate considerable impact and pulsation during the movement process, resulting in unstable valve operation. The sealing parts are respectively the sealing pair of the valve core and the valve seat, and the sealing pair of the valve cone and the valve core. Because there is a direct relationship between the sealing pair and the valve stem, the valve stem is slender, and the gravity at both ends is very different...
Claims
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IPC IPC(8): F15B13/02F16K15/06
CPCF15B13/027F16K15/063
Inventor 倪伟成王剑飞闻斌楠
Owner EAST CHINA MINING EQUIP CO LTD