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A piston accumulator

An accumulator, piston-type technology, applied in the direction of actuator accumulator, fluid pressure actuating device, mechanical equipment, etc., can solve problems such as sealing failure, achieve reliable sealing performance, ensure sealing performance, ensure normal movement and The effect of speed of response

Active Publication Date: 2016-11-23
HENAN PINGGAO ELECTRIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a piston-type accumulator to solve the technical problem in the prior art that the sealing structure formed by the radial seal ring itself on the inner wall of the cylinder is prone to seal failure when encountering high-pressure gas

Method used

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  • A piston accumulator
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Embodiment Construction

[0022] Such as Figure 1 to Figure 3 As shown, an embodiment of an accumulator equipped with a sealed piston device, the accumulator in this embodiment includes a cylinder body 3 extending in the front and rear directions, and a sealed piston structure is arranged in the cylinder body 3, and the sealed piston structure includes Move the piston 2 assembled in the cylinder body 3 in the forward and backward direction, which divides the inner chamber of the cylinder body into an oil chamber 30 and an air chamber 11, and the outer peripheral surface of the piston 2 is coaxially fitted with a radial sealing ring that cooperates with the cylinder body 3 to move and seal 32. The piston 2 is provided with a thrust surface that cooperates with the thrust limit of the radial seal ring 32 at the rear of the radial seal ring 32. The guide connecting column 31 extending forward in the direction is set on the guiding connecting column 31 with a compression spring 14 extending in the front a...

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Abstract

The invention provides a piston type accumulator, which includes a cylinder body, a piston is installed in the cylinder body, and a front end cover structure is installed at the front end of the cylinder body. The block and the thrust block fixedly assembled at the front end of the cylinder block, the piston, the inner wall of the cylinder and the top pressure block enclose the corresponding cavity in the cylinder body, and the front end cover structure is mounted on the top pressure block and the top pressure block through a positioning clip. The end face seal between the thrust blocks is sealed and assembled with the inner wall of the cylinder. The end face seal has a radial outer peripheral surface that is sealed and pressed against the inner wall of the cylinder. The top pressure block has a rear end face that faces forward and presses against the end face seal A matched pressing surface, the thrust block has a rearward thrust surface that is thrust-fitted with the front end surface of the end face seal. The high-pressure fluid in the corresponding cavity acts on the top pressure block, and the end face sealing ring is pressurized to realize end face sealing, and the sealing performance is more reliable.

Description

technical field [0001] The invention relates to a piston type accumulator. Background technique [0002] In ultra-high voltage and ultra-high voltage circuit breakers, hydraulic operating mechanisms are mostly used. The operating mode of hydraulic operating mechanisms is constant high pressure maintenance and instantaneous action, which requires an energy storage element to store the energy required for operation for a long time , There are two forms of energy storage, one is to use compressed spring energy storage, the other is to use compressed gas energy storage, the way of compressed spring energy storage has the possibility of spring being compressed for a long time to produce creep, and the compressed gas energy storage method There is a possibility of gas leakage in the way. For the hydraulic operating mechanism with large operating power, the energy storage method of compressed gas is mostly used at present. [0003] The commonly used accumulators for compressing g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B1/04
CPCF15B1/04F15B1/24F15B2201/31F15B2201/312F15B2201/40
Inventor 顾根泉王亚辉张全民李海文王海军裴绍光
Owner HENAN PINGGAO ELECTRIC
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