Piston provided with polyurethane and bowl-shaped rubber ring
A rubber ring and polyurethane technology, applied in the field of the piston of the mud pump, can solve the problems of large amount of wear, no compensation ability of the sealing surface, wear of the sealing surface, etc., and achieve the effect of small amount of wear, prolonged service life and low cost
Inactive Publication Date: 2017-06-09
佟易晟
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Problems solved by technology
[0002] The piston currently used is to fix the integral rubber ring with a pressure plate on the steel core, so the sealing surface on the piston will be worn, and the amount of wear is relatively large, and the sealing surface has no compensation ability.
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[0009] The present invention will be further explained below in conjunction with the accompanying drawings.
[0010] A polyurethane bowl-shaped rubber ring piston, characterized in that an overturning device is provided between the output end of the conveying device and the stacking input end of the device, and a buffer device is provided between the underside of the overturning device and the stacking device, and the buffer The device includes two air cylinders and two supporting plates, the two air cylinders are arranged symmetrically on the frame on both sides of the stacking device longitudinally, and the two supporting plates are respectively arranged on the piston rods of the air cylinders and are arranged opposite to each other; the valve The core is covered by a rubber ring, the rubber ring is made of polyurethane material and is bowl-shaped, and the polyurethane material has wear resistance; the elastic pressure plate is closely attached to the inner wall of the ru...
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The invention discloses a piston provided with a polyurethane and bowl-shaped rubber ring. The piston provided with the polyurethane and bowl-shaped rubber ring is characterized in that an overturning device is arranged between an output end of a conveying device and an input end of a device stacker; a buffering device is arranged between the lower side of the overturning device and a laminating device, and comprises two cylinders and two support plates; the two cylinders are symmetrically arranged on frames on the two longitudinal sides of the laminating device; the two support plates are respectively arranged on piston rods of the two cylinders, and are oppositely arranged; a valve element is sleeved by the rubber ring; the rubber ring is made of a polyurethane material, and is bowl-shaped; the polyurethane material has wear resistance; and an elastic pressing plate clings to the inner wall of the rubber ring, and is fixed with a pressing nut. The piston provided with the polyurethane and bowl-shaped rubber ring is simple in structure and convenient to manufacture, and can be compensated, and the wear extent of the piston is low, the service life of the piston is prolonged, and the cost of the piston is relatively low.
Description
technical field [0001] The invention relates to the field of pistons of mud pumps, in particular to a polyurethane bowl-shaped rubber ring piston. Background technique [0002] The piston used now is to fix the integral rubber ring with a pressing plate on the steel core, so the sealing surface on the piston will be worn, and the amount of wear is relatively large, and the sealing surface has no compensation ability. Contents of the invention [0003] In view of the above problems, the technical problem to be solved by the present invention is to provide a polyurethane bowl-shaped rubber ring piston. [0004] A polyurethane bowl-shaped rubber ring piston, characterized in that an overturning device is provided between the output end of the conveying device and the stacking input end of the device, and a buffer device is provided between the underside of the overturning device and the stacking device, and the buffer The device includes two air cylinders and two supp...
Claims
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IPC IPC(8): F04B53/14F04B53/02
Inventor 佟易晟
Owner 佟易晟