Buffer piston energy accumulator

Abstract

The invention discloses a buffer piston energy accumulator. According to the buffer piston energy accumulator, an end cover of a cylinder body is arranged at one end of the cylinder body, a piston is arranged in the cylinder body and located at one side of the end cover of the cylinder body, an oil discharge opening is formed in the circle center of the end cover of the cylinder body and penetrates through the end cover of the cylinder body, one side, opposite to the end cover of the cylinder body, of the piston is provided with a boss, the surface, opposite to the piston, of the end cover of the cylinder body is provided with a buffer hole, a throttle plug is arranged in the buffer hole, the side face of the end cover of the cylinder body is provided with a process hole, and a process plug is arranged in the process hole. When the piston moves towards the end cover of the cylinder body, the boss plugs up the oil discharge opening to enable oil to flow to the oil discharge opening through the throttle plug, and the section area of the throttle plug is far smaller than that of the oil discharge opening, so that the movement speed of the piston is reduced, and the buffer effect is achieved. The buffer piston energy accumulator is simple in structure, adjustable in buffer effect and low in manufacturing cost, eliminates abnormal sounds of the hydraulic system generated when the piston hits against the end cover of the cylinder body, eliminates hydraulic impact generated when the piston hits against the end cover of the cylinder body and prolongs the service life of the energy accumulator and sealing pieces.

Description

technical field [0001] The invention relates to an accumulator, in particular to a buffer piston accumulator. Background technique [0002] Piston accumulator is one of the commonly used accumulators in hydraulic system. Due to its simple structure and easy manufacture, it has been widely used in hydraulic system. like figure 1 as shown, figure 1 It is a structural diagram of a piston accumulator in the prior art, and the piston accumulator is composed of a cylinder body 12, a piston 13, a seal, and front and rear end covers 11. At present, most of the commonly used piston accumulators on the market do not have a buffer device. In actual work, the phenomenon of piston hitting the bottom often occurs; the bottoming phenomenon will generate excessive hydraulic shock to the seal inside the piston while generating noise. , resulting in local high heat and high pressure, reducing the service life of accumulators and seals, such as figure 1 Arrows shown indicate the direction ...

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Problems solved by technology

[0003] In view of this, the present invention proposes a cushioning piston accumulator to solve the problem that the piston of the prior art piston-type accumulator hits the bottom and generates noise. After a long time, local high heat and high pressure will be generated, reducing the storage capacity. Energy life issues

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