Piston for avoiding clamping stagnation
A piston and integrated technology, which is applied in the direction of piston, cylindrical piston, plunger, etc., can solve the problems of pilot control valve piston sticking, etc., and achieve the effects of reducing maintenance costs, long service life, improving use efficiency and use quality
Inactive Publication Date: 2016-06-15
龙工(上海)精工液压有限公司
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Abstract
The invention provides a piston that avoids sticking, which is characterized in that it includes a first part, a second part and a third part arranged in sequence from top to bottom, the first part and the second part are cylindrical, and the top of the third part The surface is circular, and its outer diameter is larger than that of the first part, and the outer diameter of the first part is larger than that of the second part, wherein the transition between the side surface of the second part and the top surface of the third part is rounded. The invention cancels the outer circular groove of the steel wire retaining ring, and adds a second cylindrical part and a third cylindrical part on the basis of the outer cylindrical surface of the traditional piston. The side of the second cylindrical part is connected with the third cylindrical part Round transitions are used between the top faces of the shaped parts. The invention has simple structure and long service life, can better solve the stuck situation of the piston, reduce the after-sale maintenance cost of the pilot control valve, and improve the use efficiency and quality of the hydraulic pilot control system of the whole machine.
Application Domain
Valve arrangementsPlungers +1
Technology Topic
PistonEngineering +2
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