Double-port supporting locking oil cylinder and control method of double-port supporting locking oil cylinder

Abstract

The invention relates to a double-port supporting locking oil cylinder, which comprises a cylinder tube, an upper end cover, a lower end cover and a guide sleeve, wherein the upper end cylinder, the lower end cylinder and the guide sleeve are fixedly arranged on the cylinder tube, the upper end cover, the lower end cover, the guide sleeve and the cylinder tube form an accommodating cavity, a piston rod assembly is arranged in the accommodating cavity, a piston and a locking sleeve sheath the piston rod assembly from top to bottom, the locking sleeve and the cylinder tube are in interference fit, the upper end of the cylinder tube is provided with an upper oil nozzle used for controlling the action of the oil cylinder, and the lower end of the cylinder tube is provided with a lower oil nozzle used for controlling the action of the oil cylinder and unlocking the oil cylinder. The invention also relates to a control method of the double-port supporting locking oil cylinder. The double-port supporting locking oil cylinder has the advantages that an oil path is simplified, the cost is reduced, the reliability and the effective stroke are improved, in addition, the work state of the cylinder tube is better during the unlocking, and abrasion and groove forming cannot easily occur, so that the application is more convenient and reliable.

Description

technical field [0001] The invention relates to a dual-port support locking oil cylinder and a control method thereof. Background technique [0002] Many engineering applications require actuating elements with small size, large thrust and precise positioning, and hydraulic cylinders (hydraulic cylinders) with any position locking function are a good choice, so they are widely used in automobiles, trailers, Support and locking of trailers and other mobile carriers. [0003] Hydraulic cylinders with the above functions are divided into steel ball self-locking cylinders and interference-type locking cylinders according to the locking principle. The steel ball self-locking cylinder relies on the friction self-locking between the steel ball installed on the inner slope of the piston and the cylinder to lock the piston. This kind of cylinder has two working oil ports and does not need a special unlocking oil port. The working method is the same as The ordinary oil cylinder is t...

AI Technical Summary

Problems solved by technology

The complexity of connecting pipelines increases the number of hydraulic system connectors, increases the number of nodes where oil leakage occurs, and reduces the reliability of the system. Moreover, since pipelines are often installed on parts that are difficult to maintain such as the bottom of the vehicle, it is difficult to deal with problems such as oil leakage.

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