A gas-liquid booster cylinder

Abstract

The invention discloses a gas-liquid pressurized cylinder, which comprises a front end cover, a working cylinder body, a hydraulic cylinder body, an oil filling middle cover, a cylinder body and a rear end cover which are sequentially sealed and connected. The air channel, the rear end cover is provided with a pressurized intake channel connected with the cylinder body, the cylinder body is provided with a pressurized piston rod, the pressurized piston rod is covered with a return spring, and the hydraulic cylinder body is provided with Fast air intake channel, the hydraulic cylinder block includes a plurality of hydraulic cylinder units, each hydraulic cylinder unit is provided with a buffer middle cover, and the oil filling middle cover and the buffer middle cover are provided with a pressure booster piston rod. There is a through hole, and a hydraulic sealing ring is set in the through hole. Multiple seals are used to effectively reduce the pressure difference of the liquid on both sides of the sealing ring in the buffer cover during the stamping process, making the sealing ring more durable, even if one of the sealing rings fails, there will be other sealing rings, prolonging the use of the overall pressurized cylinder time to increase its stability.

Description

technical field [0001] The invention relates to a gas-liquid pressurized cylinder. Background technique [0002] The air-liquid booster cylinder is widely used in stamping equipment and other occasions that require a large thrust. The working process of the air-liquid booster cylinder is generally preloading, boosting and return. The air-liquid pressurized cylinder generally has the following problems: 1) the service life is short and oil leakage; 2) the stamping force is unstable as the service time is extended; 3) the high-pressure liquid and the low-pressure liquid are sealed with a single seal ring, and the load Big. [0003] At the same time, due to the urgent need to improve the working efficiency of the pressurized cylinder, the factory blindly increases the pressure of the working air source, which will cause the sealing ring in the cylinder to bear an excessive load, and it is very easy to cause oil leakage after long-term work, and the working piston rod is weak a...

AI Technical Summary

Problems solved by technology

[0002] The air-liquid booster cylinder is widely used in stamping equipment and other occasions that require a large thrust. The working process of the air-liquid booster cylinder is generally preloading, boosting and return. The air-liquid pressurized cylinder generally has the following problems: 1) the service life is short and oil leakage; 2) the stamping force is unstable as the service time is extended; 3) the high-pressure liquid and the low-pressure liquid are sealed with a single seal ring, and the load Big

[0003] At the same time, due to the urgent need to improve the working efficiency of the pressurized cylinder, the factory blindly increases the pressure of the working air source, which will cause the sealing ring in the cylinder to bear an excessive load, and it is very easy to cause oil leakage after long-term work, and the working piston rod is weak and other failures. problems, greatly shortening the service life of the entire pressurized cylinder, and burying safety hazards for normal production

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