Servo hydraulic oil cylinder

Abstract

The invention relates to a servo hydraulic oil cylinder, which comprises a cylinder body, a piston rod is inserted into the cylinder body, a mounting plate is mounted at the top end of the piston rod, the outer surface of the cylinder body is sleeved with a first sleeve, a first piston is movably arranged in the first sleeve in a matched mode, and a linkage rod is mounted on the top wall of the first piston; the linkage rod is fixedly connected with the mounting plate, the outer surface of the first sleeve is sleeved with a first water box and a second water box, the first sleeve is communicated with the first water box, and a first pressing plate is movably arranged in the second water box in a matched mode. The cooling liquid is injected into the interlayer of a double-layer dust cover to reduce the temperature of the piston rod, and the phenomenon that high temperature generated by the friction piston rod is transmitted into an oil cylinder in a heat conduction mode, so that the temperature of hydraulic oil in the oil cylinder rises, and the hydraulic oil goes bad is avoided.

Description

technical field [0001] The invention relates to the technical field of hydraulic cylinders, in particular to a servo hydraulic cylinder. Background technique [0002] The hydraulic cylinder is one of the important components in the hydraulic system, and it is also a commonly used mechanical component. Many large mechanical equipment are equipped with hydraulic cylinders. [0003] After retrieval, Chinese Patent No. CN111894944A discloses a servo hydraulic cylinder, including a cylinder main body, the output end of the cylinder main body is located on one side, a piston rod is slidably connected to one side of the cylinder main body, and the end of the piston rod away from the cylinder main body is fixedly connected to a mounting A dust-proof mechanism and an oiling mechanism are installed between the mounting plate and the main body of the oil cylinder. The upper and lower ends of the mounting plate and the middle parts of the front and rear sides are fixedly connected with ...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a servo hydraulic oil cylinder to solve the problem in the above background technology that during the working process, the heat generated by the mutual friction between the piston rod and the oil cylinder cannot be dissipated quickly and accumulates in the dust cover and the piston rod. The heat between the cylinders is transferred to the inside of the cylinder through heat conduction, causing the temperature in the cylinder to rise, resulting in the deterioration of the hydraulic oil and reducing the service life of the hydraulic oil.

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