Long-distance transmission hydraulic cylinder

Abstract

The invention discloses a long-distance transmission hydraulic cylinder. The long-distance transmission hydraulic cylinder comprises a cylinder barrel, a cylinder head arranged at the two ends of the cylinder barrel, a piston rod arranged in the cylinder barrel and a piston, wherein sealing devices are arranged on the piston and the cylinder heads. The long-distance transmission hydraulic cylinder is characterized in that an exhaust hole communicated with the inside of the cylinder barrel is formed on the cylinder barrel, and a silencer is arranged on the exhaust hole. According to the long-distance transmission hydraulic cylinder, the noise produced by exhaust is eliminated by arranging the silencer in the position of the exhaust hole, thereby improving a production environment, simultaneously preventing dust or sundries from falling into the oil cylinder and ensuring the normal working of the oil cylinder.

Description

technical field [0001] The invention relates to a hydraulic oil cylinder, in particular to a long-distance transmission hydraulic oil 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). It has simple structure and reliable operation. When it is used to realize reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the motion is stable, so it is widely used in various mechanical hydraulic systems. Hydraulic cylinders are divided into piston type, plunger type, swing type and telescopic type according to the structure type, among which the piston type hydraulic cylinder is the most widely used. [0003] Piston hydraulic cylinders are divided into single-acting piston hydraulic cylinders and double-acting piston hydraulic cylinders according to the mode of action. The hydraulic cylin...

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Problems solved by technology

However, due to the small hole diameter, the gas will produce screaming noise during the rapid discharge process, which will affect the working environment of the staff, and because the small air release hole is opened on the cylinder, dust and small sundries will pass through The air release hole enters the hydraulic cylinder, and after a long time, the piston rod will be directly ground with impurities, causing the piston rod to be strained, and even damage the sealing device, resulting in serious consequences such as the failure of the hydraulic cylinder to work normally.

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