Hydraulic reversing valve fault automatic detection cleaning control device and control method

By designing the automatic detection and cleaning control device for hydraulic reversing valve failure, the automatic movement and cleaning of the valve core is achieved by using cylinder pushing and hydraulic oil flushing, the problem of oil circuit blockage caused by the jamming of the hydraulic reversing valve core is solved, and the production efficiency and safety are improved.

CN119712633APending Publication Date: 2025-03-28SHANGHAI MEISHAN IRON & STEEL CO LTD
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Patent Information

Application Number
CN202311252703.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-26
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The valve core of the hydraulic reversing valve is stuck and causes the oil circuit to be blocked, affecting the stable operation of the production process. It is difficult for the existing technology to achieve automatic detection and cleaning, and manual participation is required.

Method used

A hydraulic reversing valve fault automatic detection and cleaning control device is designed, including an automatic cylinder pushing control device and an automatic flushing and sewage discharge control device for the valve chamber of the hydraulic reversing valve. The automatic action of the valve core and the online cleaning of hydraulic oil are achieved through pneumatic push rods and flushing electrical control valves.

Benefits of technology

It realizes automatic detection and cleaning of the valve core of hydraulic reversing valves, avoids manual participation, improves production efficiency, and reduces safety risks, especially in harsh industrial environments.

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Abstract

The invention relates to a hydraulic reversing valve fault automatic detection cleaning control device which comprises an air cylinder, a pneumatic push rod, a handle, an electromagnetic coil, a coil power plug, a hydraulic reversing valve, a position switch, a flushing blow-off pipe, an oil pump, an oil tank, an oil pump oil outlet pipe, an oil tank oil return pipe, a hydraulic mechanism reverse oil inlet and a hydraulic mechanism forward oil inlet. The air cylinder is fixedly installed on one side of the handle, the pneumatic push rod and the handle are installed at a trigger distance, the pneumatic control valve is installed on one side of the bottom of the air cylinder, the top of the handle penetrates through and extends out to be installed on the top of the hydraulic reversing valve, and the function that the handle is pushed to change the displacement action of a valve element can be achieved. Wherein the electromagnetic coil wraps and is installed at one end of the right side of the hydraulic reversing valve, the coil power plug and the electromagnetic coil are fixedly installed, the oil pump is installed at the top end of the oil tank, the air cylinder is additionally installed on the hydraulic reversing valve to push the mechanical control handle, and the mechanical automatic control valve element action is achieved when a jamming fault occurs.
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