Hydraulic device working cylinder and plug thereof

A technology of hydraulic devices and working cylinders, applied in fluid pressure actuating devices, mechanical equipment, etc., can solve problems such as slow starting, and achieve the effect of increasing starting force, increasing driving force, and improving starting speed

Active Publication Date: 2019-09-17
PINGGAO GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a plug for a working cylinder of a hydraulic device to solve the technical problem that the hydraulic device working cylinder starts slowly in the prior art; the purpose of the present invention is also to provide a hydraulic device working cylinder

Method used

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  • Hydraulic device working cylinder and plug thereof
  • Hydraulic device working cylinder and plug thereof
  • Hydraulic device working cylinder and plug thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0032] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0033] An embodiment of the hydraulic device working cylinder of the present invention, such as image 3 As shown, the working cylinder of the hydraulic device includes a cylinder body 11 and a piston 12. The cylinder body 11 is provided with a piston chamber 112. The piston 12 is movably assembled in the piston chamber 112 along the axial direction of the cylinder body 11. The piston chamber 112 is used for connecting with the piston 12. A stop step 111 is provided on the inner wall of the end corresponding to the end of the buffer stroke, and a plug 14 is provided at the end of the end. A center hole 141 for inserting the buffer shaft 121 of the piston 12 is provided at the center of the plug 14 .

[0034] The working cylinder of the hydraulic device also includes a buffer sleeve 13. The buffer sleeve 13 is provided with an inner hole for the insertio...

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PUM

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Abstract

The invention relates to a hydraulic device working cylinder and a plug thereof. A center hole allowing a buffer shaft of a piston of the hydraulic device working cylinder to be inserted thereinto is formed in the plug of the hydraulic device working cylinder, the plug of the hydraulic device working cylinder is provided with a blocking-stop end used for blocking an oil passing hole in a buffering sleeve when being in blocking-stop fit with the buffering sleeve, the center hole of the plug of the hydraulic device working cylinder is provided with a diameter expanding section, and an opening of the end, close to the piston, of the center hole is formed by the diameter expanding section. An oil liquid in the diameter expanding section has a pushing effect on the end face, close to the plug of the hydraulic device working cylinder, of the buffering sleeve, so that the driving force of the oil liquid to the buffering sleeve is increased, and the starting force of the hydraulic device working cylinder is increased; and in addition, under the pushing action of the oil liquid in the diameter expanding section, the buffering sleeve can enable the blocking-stop end of the plug which is rapidly separated from the hydraulic device working cylinder to open the oil passing hole in the buffering sleeve, then the starting force of the hydraulic device working cylinder is increased by increasing the oil passing amount, and the starting speed of the hydraulic device working cylinder is increased.

Description

technical field [0001] The invention relates to a working cylinder of a hydraulic device and a plug thereof. Background technique [0002] The hydraulic operating mechanism uses the incompressible principle of liquid to send high-pressure oil to both sides of the working cylinder to realize the opening and closing of the circuit breaker, such as the hydraulic operating mechanism of the circuit breaker disclosed in the invention patent application with the publication number CN101527206A. [0003] Such as figure 1 with figure 2 As shown, the working cylinder of the hydraulic operating mechanism in the prior art includes a cylinder body 1, a plug 4 blocked at one end of the piston chamber, a piston 2 that is guided and moved in the piston chamber of the cylinder body 1, and moves axially Buffer sleeve 3 assembled in the piston chamber. The working process of the working cylinder when the hydraulic operating mechanism is closed and started is: the oil enters the lower part ...

Claims

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Application Information

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IPC IPC(8): F15B15/14F15B15/22F15B1/02
CPCF15B1/02F15B15/14F15B15/1438F15B15/22
Inventor 李海文胡月萍刘煜雷琴刘宇杨晓威逯丹
Owner PINGGAO GRP
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