Automobile hydraulic cylinder

Abstract

The invention discloses an automobile hydraulic cylinder. The automobile hydraulic cylinder structurally comprises a hydraulic cylinder body, a hydraulic rod, a pipe joint and a lining, wherein the hydraulic cylinder body is composed of a cylinder body, a sliding groove, a bottom cylinder buffer seat, a signal alarm and a positioning switch; and the hydraulic cylinder body utilizes a spring in a piston rod to cooperate with an arc-shaped top strip to solve the problems that when the hydraulic cylinder body does piston motion at a high speed, friction between a piston and the inner wall of thecylinder body is too fast, the oil temperature in the cylinder body is often too high, and the sealing performance of the cylinder body becomes poor after a long time under thermal expansion and coldcontraction. A pressing plate pushes oil dirt on the surface outwards through a dirt removing mechanism, so that the oil dirt is stored by a dirt containing groove in a check ring, the hydraulic cylinder body is warned through cooperation of the positioning switch and the signal alarm, the problem of outward leakage or outward leakage of sealing of the hydraulic cylinder body is solved, accidentscaused by use of the hydraulic cylinder body are avoided, and the safety performance is improved.

Description

technical field [0001] The invention relates to the field of hydraulic equipment, in particular to an automobile hydraulic cylinder. Background technique [0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swing motion). The hydraulic cylinder in the car is one of the essential actuators. When the hydraulic cylinder in the car is moving at high speed, the friction between the piston and the cylinder is too fast, which often causes the oil temperature in the cylinder to be too high, and it expands and contracts with heat In the long run, it will lead to poor sealing of the cylinder body, which will affect the service life of the car, and once the seal between the piston rod and the guide sleeve leaks or leaks, it will lead to accidents in the use of the hydraulic cylinder. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention ...

AI Technical Summary

Problems solved by technology

The hydraulic cylinder in the car is one of the essential actuators. When the hydraulic cylinder in the car is moving at high speed, the friction between the piston and the cylinder is too fast, which often causes the oil temperature in the cylinder to be too high, and it expands and contracts with heat In the long run, it will lead to poor sealing of the cylinder body, affecting the service life of the car, and once the seal between the piston rod and the guide sleeve leaks or leaks, it will lead to accidents in the use of the hydraulic cylinder

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