A hydraulic cylinder with axial support and protection

Abstract

The invention discloses an axially supported and protected hydraulic oil cylinder, comprising a hydraulic cylinder body, a movable rod is connected to the movable end of the hydraulic cylinder body, a top plate is fixedly connected to the top of the hydraulic cylinder body, and an outer wall of the hydraulic cylinder body is fixedly connected with a The opposite side air cylinder, the side air cylinder is plugged with a micro pump, the end of the micro pump away from the side air cylinder is fixedly connected with an air guide cylinder, the end of the air guide cylinder close to the movable rod is fixedly connected with a sealing clip, and a cylindrical air bag is connected between the sealing clip and the top plate. , the lower end of the annular compression airbag is fixedly connected with a collar that matches the movable rod, and the upper side of the collar is provided with a floating pressure ring, which protects the hydraulic rod in real time, so that the leakage part is fully supported and protected, and the hydraulic rod is fully supported and protected. After being stretched and fixed, after the sealing ring is expanded by restarting, the floating pressure ring in it is compressed by air pressure to ensure the sealing between the movable rod and the main body of the hydraulic cylinder.

Description

technical field [0001] The invention relates to the field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder with axial support and protection. Background technique [0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It is simple in structure and reliable in operation; when it is used to realize reciprocating motion, the reduction device can be omitted, and there is no transmission gap, and the movement is stable, so it is widely used in various mechanical hydraulic systems. The hydraulic cylinder is basically composed of the cylinder barrel and the cylinder head, the piston and the piston rod, the sealing device, the buffer device and the exhaust device; the buffer device and the exhaust device depend on the specific application, and other devices are essential. [0003] During the working process of the piston rod, it is easy to cause w...

AI Technical Summary

Problems solved by technology

[0003] During the working process of the piston rod, the lateral load and the movement of the piston rod will easily cause wear, which will greatly reduce the sealing performance of the hydraulic cylinder and even cause hydraulic oil leakage; at the same time, the first seal between the piston rod and the guide sleeve can It is in direct contact with the hydraulic oil in the cylinder. During the operation of the servo hydraulic cylinder, it will be subjected to the force of the hydraulic oil. The first seal is in a high-pressure working environment, which is prone to wear, heat and even damage, resulting in a decrease in sealing effect or even damage. Loss of sealing performance, leakage of hydraulic oil occurs, reduces the working efficiency of the servo hydraulic cylinder and shortens the service life of the servo hydraulic cylinder

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