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Piston type energy accumulator

An accumulator and piston-type technology, which is applied in the direction of mechanical equipment, can solve the problems of complex production, piston damage, and affecting the service life of piston-type accumulators, and achieve the effect of prolonging the use time and simple and reasonable structure

Inactive Publication Date: 2015-03-11
CHANGZHOU FEIYU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the currently known piston accumulators are designed with a ring groove on the side wall and a guide ring, which is complicated to manufacture, and it is easy to see the oil phase into the piston during the sliding process of the piston. Part of the oil phase is 10-60° hydraulic oil, which will damage the piston itself and affect the service life of the piston accumulator

Method used

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  • Piston type energy accumulator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Such as figure 1 The shown piston accumulator includes a housing 1 and a piston 2. The piston 2 is located inside the housing 1 and divides the cavity in the housing 1 into an air chamber 3 and an oil chamber 4. The top of the housing 1 is provided with an air port 5, the bottom of the housing 1 is provided with an oil inlet and outlet 6, the piston 2 and the inner wall of the housing 1 are provided with a matching sliding block 7, and the piston 2 is close to the side of the oil chamber 4 The end is provided with a rubber scraper 8.

[0014] The material of the rubber scraper 8 is nitrile rubber.

[0015] A sealing strip is arranged inside the sliding block 7 .

Embodiment 2

[0017] Such as figure 1 The shown piston accumulator includes a housing 1 and a piston 2. The piston 2 is located inside the housing 1 and divides the cavity in the housing 1 into an air chamber 3 and an oil chamber 4. The top of the housing 1 is provided with an air port 5, the bottom of the housing 1 is provided with an oil inlet and outlet 6, the piston 2 and the inner wall of the housing 1 are provided with a matching sliding block 7, and the piston 2 is close to the side of the oil chamber 4 The end is provided with a rubber scraper 8.

[0018] The material of the rubber scraper 8 is butyl rubber.

[0019] A sealing strip is arranged inside the sliding block 7 .

Embodiment 3

[0021] Such as figure 1 The shown piston accumulator includes a housing 1 and a piston 2. The piston 2 is located inside the housing 1 and divides the cavity in the housing 1 into an air chamber 3 and an oil chamber 4. The top of the housing 1 is provided with an air port 5, the bottom of the housing 1 is provided with an oil inlet and outlet 6, the piston 2 and the inner wall of the housing 1 are provided with a matching sliding block 7, and the piston 2 is close to the side of the oil chamber 4 The end is provided with a rubber scraper 8.

[0022] The material of the rubber scraper 8 is fluorine rubber.

[0023] A sealing strip is arranged inside the sliding block 7 .

[0024] The invention has longer service life, better oil and gas isolation effect, and the oil liquid is not easily oxidized. The viscosity of the working oil used by the components is 10 ~ 100cSt. When the oil temperature is low, the hydraulic oil with low viscosity can be selected.

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Abstract

The invention discloses a piston type energy accumulator. The piston type energy accumulator comprises a housing and a piston, wherein the piston is located inside the housing to divide the inner cavity of the housing into an air chamber and an oil chamber; an air hole is formed in the top of the housing; an oil inlet / outlet is formed in the bottom of the housing; a matching slider is arranged between the piston and the inner wall of the housing; a rubber scraper is arranged on the end portion, close to the side of the oil chamber, of the piston. The piston type energy accumulator is simple and reasonable in structure; cooperative sliding between the piston and the housing can be realized without a guide ring; the rubber scraper is preposed to scrape the oil phase in the process when the piston moves downwards so that the service life of the piston cannot be damaged, and therefore, the service time of the piston type energy accumulator is prolonged.

Description

technical field [0001] The invention relates to the technical field of hydraulic accessories, in particular to a piston type accumulator. Background technique [0002] An accumulator is an energy storage device in a hydropneumatic system. It converts the energy in the system into compression energy or potential energy at an appropriate time and stores it. When the system needs it, it converts the compression energy or potential energy into hydraulic or pneumatic energy and releases it to replenish the system. Most of the currently known piston accumulators are designed with a ring groove on the side wall and a guide ring, which is complicated to manufacture, and it is easy to see the oil phase into the piston during the sliding process of the piston. Part of the oil phase is 10-60° hydraulic oil, which will damage the piston itself and affect the service life of the piston accumulator. Contents of the invention [0003] In order to overcome the disadvantages of the above...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B1/04
CPCF15B1/04
Inventor 吴玉飞
Owner CHANGZHOU FEIYU CHEM
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