Hydraulic cylinder

Abstract

The invention relates to a hydraulic cylinder. The hydraulic cylinder comprises a cylinder barrel, wherein a reinforcing rib is arranged in the cylinder barrel and is provided with a sealing layer; apiston rod is arranged in an inner cavity of the cylinder barrel; the bottom part of the piston rod is connected with a piston; a supporting ring is arranged between the piston and the sealing layer and is connected with a Y-shaped sealing ring; clamping keys are connected to the bottom part of the piston and are provided with clamping key caps; an oil filter is arranged between the clamping key caps and is connected with a buffering device which is connected with the cylinder bottom; an oil nozzle is arranged on the cylinder bottom and is connected with an oil pipe; the oil pipe is fixed witha fixing part and divides the cylinder barrel and the cylinder bottom; ventilating holes are arranged in the fixing part; a cylinder cover is arranged at the junction of the piston rod and the cylinder barrel and is internally provided with a double-layer sealing ring; a blocking ring is arranged on the double-layer sealing ring and is connected with a guide sleeve; a U-shaped sealing ring is arranged on the guide sleeve; a bulge is arranged on the cylinder barrel at the lower end of the guide sleeve and is connected with an exhausting device. The hydraulic cylinder has the advantages of strong sealing performance, good stability and safety, no leakage and long service life.

Description

technical field [0001] The invention specifically relates to a hydraulic cylinder. Background technique [0002] Hydraulic cylinder is an essential equipment in the life and production process. Because of its tight sealing performance, it has good hydraulic effect, but because of its long-term use, it is easy to cause the sealing performance to decline, resulting in the entry of air, making its internal pressure uneven , causing damage to the structure. At the same time, under heavy pressure, the piston acts repeatedly. During the descent process, due to the influence of its gravity, the speed is too fast, which reduces the balance of the structure and shortens the service life. Contents of the invention [0003] The object of the present invention is a hydraulic cylinder to solve the existing technical problems. [0004] In order to achieve the above object, the present invention provides the following technical solutions: a hydraulic cylinder, including a cylinder, a re...

AI Technical Summary

Problems solved by technology

[0002] Hydraulic cylinder is an essential equipment in the life and production process. Because of its tight sealing performance, it has good hydraulic effect, but because of its long-term use, it is easy to cause the sealing performance to decline, resulting in the entry of air, making its internal pressure uneven , causing damage to the structure. At the same time, under heavy pressure, the piston acts repeatedly. Due to the influence of its gravity during the descent, the speed is too fast, which reduces the balance of the structure and shortens the service life.

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