Buffering hydraulic oil cylinder

Abstract

The invention discloses a buffer hydraulic oil cylinder. The hydraulic oil cylinder comprises a cylinder body, a piston is connected to the inner wall of the cylinder body in a sealed and sliding manner, a pull rod penetrating through the cylinder body is fixed to the side wall of the piston, a contraction pipe and an extension pipe are inserted into the side wall of the cylinder body in a penetrating manner, and a buffer box is fixed to the outer wall of the cylinder body. A push plate is connected to the inner wall of the buffer box in a sealed and sliding manner, a telescopic rod is fixed to the side wall of the push plate, and a magnetic block is fixed to the side wall of the piston. The buffer hydraulic oil cylinder has the advantages that magnetorheological fluid is arranged in the buffer box, the magnetic block is arranged on the piston, and when the piston gets close to the buffer box at a high speed, magnetic force acts on the magnetorheological fluid, so that the fluidity ofthe magnetorheological fluid is reduced, the movement of the push plate is limited, the movement of the piston is limited, and furthermore, the piston does not violently collide with the inner wall ofthe cylinder body, a buffering effect is achieved on movement of the piston, and the service life of the cylinder body and the service life of the piston are prolonged.

Description

technical field [0001] The invention relates to the technical field of hydraulic cylinders, in particular to a buffer hydraulic oil cylinder. Background technique [0002] Hydraulic cylinders generally refer to hydraulic cylinders, which are hydraulic actuators that convert hydraulic energy into mechanical energy and perform linear reciprocating motion. It is simple in structure and reliable in operation. It is mainly used in machinery. It is the most important component of construction machinery and an important core component that provides power for machinery. [0003] The hydraulic cylinder relies on the injection and outflow of oil to realize the moving operation of the piston. The piston moves at a high speed under the promotion of hydraulic oil, so the collision with the end of the cylinder is inevitable. However, some of the existing hydraulic cylinders are not equipped with buffer equipment, and some The effect of buffering equipment is poor, resulting in the reduct...

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Problems solved by technology

[0004]The purpose of the present invention is to solve the problem that the piston of the hydraulic oil cylinder runs too fast and collides with the cylinder body in the prior art, resulting in a reduction in the life of the cylinder body. buffer hydraulic cylinder

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