The plug of the working cylinder of the hydraulic device and the working cylinder of the hydraulic device
A technology of hydraulic devices and working cylinders, applied in the direction of fluid pressure actuating devices, mechanical equipment, etc., which can solve problems such as longer closing time, piston 2 crawling, and unstable closing time, so as to increase the starting speed and increase the driving force force, increase the effect of starting force
Active Publication Date: 2020-11-06
PINGGAO GRP +1
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Problems solved by technology
[0004] The above-mentioned working cylinder has the following problems: when the switch is closed, before the buffer sleeve 3 leaves the plug 4, the initial oil action area is only the inner hole area of the buffer sleeve 3, resulting in insufficient initial driving force of the oil on the buffer sleeve 3 , which in turn causes insufficient initial driving force on piston 2, and the phenomenon of "crawling" occurs on piston 2, resulting in longer closing time or unstable closing time
Method used
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Embodiment Construction
[0038] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0039] Specific embodiment one of hydraulic device working cylinder of the present invention, 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 .
[0040] 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 inserti...
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The invention relates to a plug of a working cylinder of a hydraulic device and the working cylinder of the hydraulic device. The plug of the working cylinder of the hydraulic device comprises a central hole, the central hole is used for allowing a buffer shaft on a piston of the working cylinder of the hydraulic device to be inserted into, the plug is further provided with a stopping end surfacefor plugging an oil passing hole in a buffer sleeve during being combined with the buffer sleeve, a groove is formed in the stopping end surface, the groove communicates with the central hole, or a communicating channel is arranged on the plug, an opening in one end of the communicating channel is formed in the stopping end surface, and an opening in the other end is formed in the corresponding wall surface of the plug so as to communicate with the working cylinder of the hydraulic device. During starting of the working cylinder of the hydraulic device, the oil liquid in the groove or in the position, located in the opening of the stopping end surface of the communicating channel plays a promotion role in the end surface, close to the working cylinder of the hydraulic device, of the buffersleeve, the promotion force of the oil liquid on the buffer sleeve is increased, and the starting force of the working cylinder of the hydraulic device is increased.
Description
technical field [0001] The invention relates to a plug of a working cylinder of a hydraulic device and the working cylinder of the hydraulic device. 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 and 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 cavity. The working process of the working cylinder when the hydraulic operating mechanism is closed and star...
Claims
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IPC IPC(8): F15B15/14F15B15/22
CPCF15B15/1423F15B15/221F15B2215/30
Inventor 李海文胡月萍刘煜雷琴刘宇杨晓威逯丹
Owner PINGGAO GRP