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Bidirectional cushioning piston

A two-way buffer and piston technology, applied in the field of mechanical parts design, can solve problems such as the inability to meet buffer requirements, and achieve the effects of reducing impact, avoiding dynamic unbalanced force, and fast starting speed.

Pending Publication Date: 2019-01-08
LONGTAN HYDROPOWER DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The piston body of the traditional buffer cylinder is mainly designed for mechanical parts that move axially reciprocatingly. It is rarely used in the two compound motion conditions of axial reciprocating and circumferential rotation, and it cannot be realized when the traditional buffer piston moves in both directions. different buffer requirements

Method used

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  • Bidirectional cushioning piston
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] A two-way buffer piston, including a piston body 4; two fluid passages 3 are arranged in the piston body 4, a throttling plug 1 is arranged in one of the fluid passages, and a check valve is arranged in the other fluid passage 5; A U-shaped seal 2 is provided on the outside of the piston body 4 .

[0026] The fluid passage 3 is "L" shaped, one end of the fluid passage 3 passes through the top of the piston body 4, and the other end passes through the side of the piston body 4; the throttle plug 1 and the one-way valve 5 are arranged symmetrically on the 4 sides of the piston body.

[0027] The throttle plug 1 and the one-way valve 5 are respectively embedded in both sides of the piston body 4 .

[0028] The U-shaped seal 2 is embedded on the outside of the piston body 4 .

[0029] How this example works:

[0030] The U-shaped seal 2 is located above the opening of the lower end of the fluid channel 3; the U-shaped seal 2 is arranged around the outer surface of the pi...

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PUM

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Abstract

The invention discloses a bidirectional cushioning piston, comprising a piston body. The piston body is provided with two fluid passages, a throttle plug is arranged in one fluid passage, and a one-way valve is arranged in the other fluid passage. The outside of the piston body is provided with a U-shaped seal. The invention has a simple structure and ingenious design, and can obtain different cushioning functions through the assistance of the one-way valve and a throttle valve, so as to obtain a faster starting speed, meet the air supplement requirements of a hydraulic turbine, obtain a slower closing speed, and reduce the impact between a valve disc and a valve seat.

Description

technical field [0001] The invention belongs to the field of mechanical part design and relates to a bidirectional buffer piston. Background technique [0002] During the rapid movement of mechanical parts, strong impact, noise and even mechanical collision will be generated at the end of the stroke, which seriously affects the service life of mechanical parts. The traditional buffer piston relies on the damping hole in the piston body to achieve the buffering effect. [0003] The piston body of the traditional buffer cylinder is mainly designed for mechanical parts that move axially reciprocatingly. It is rarely used in the two compound motion conditions of axial reciprocating and circumferential rotation, and it cannot be realized when the traditional buffer piston moves in both directions. Different buffering requirements. Contents of the invention [0004] Aiming at the deficiencies of the prior art, the present invention proposes a two-way cushioning piston capable o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B11/00F03B15/00
CPCF03B11/002F03B15/00Y02E10/20
Inventor 陈峰兵王鹏宇向小峰李平张波涛俸梅
Owner LONGTAN HYDROPOWER DEV