A buffer hydraulic cylinder

Abstract

The invention discloses a buffering hydraulic cylinder. The buffering hydraulic cylinder comprises a cylinder body, and is characterized in that the upper end of the cylinder body is fixedly providedwith an upper end cover, and the lower end of the cylinder body is fixedly provided with a lower end cover. The cylinder body is internally in sliding connection with a piston body, wherein the pistonbody is provided with a piston rod which penetrates out of the upper end cover, and the piston rod is in sliding connection with the upper end cover. A rod cavity is formed between the upper end cover and the piston body, and a non-cavity is formed between the lower end cover and the piston body. The side face of the circumference of the upper end cover is provided with a first oil hole, and theside face of the circumference of the lower end cover is provided with a second oil hole. An upper buffer assembly is arranged on the upper end cover of the cylinder body, and a lower buffer assemblyis arranged on the lower end cover of the cylinder body. According to the buffering hydraulic cylinder, the structure is simple, and brake buffering can generate when the piston body moves to the twoends of the cylinder body.

Description

technical field [0001] The invention belongs to the technical field of hydraulic cylinders, in particular to a buffer hydraulic 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, and is widely used in various mechanical hydraulic systems. During the commissioning and operation of the hydraulic cylinder, because the piston body itself has a certain mass, it has a large momentum under the pressure drive. When the piston body runs to the end, the moving piston body often collides with the cylinder head and the cylinder bottom. Mechanical collisions generate great impact pressure and noise. These impacts and collisions will also cause damage to the hydraulic cylinder itself and damage to related components such as piping, valves, and instruments in related systems, greatly affecting th...

AI Technical Summary

Problems solved by technology

During the commissioning and operation of the hydraulic cylinder, because the piston body itself has a certain quality, it has a large momentum under the pressure drive. When the piston body runs to the end, the moving piston body often collides with the cylinder head and the cylinder bottom. Mechanical collisions generate great impact pressure and noise. These impacts and collisions will also cause damage to the hydraulic cylinder itself and damage to related components such as piping, valves, and instruments in related systems, greatly affecting the performance of mechanical equipment.

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