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Vibration eliminating device and switching apparatus

A cylinder block and pressure relief valve technology, applied in mechanical equipment, protection switches, emergency protection devices, etc., can solve problems such as closing and bouncing of moving contacts, and achieve the effects of promoting deceleration, improving efficiency, and improving dynamic performance

Inactive Publication Date: 2016-04-13
陈鸽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These measures have greatly improved the dynamic performance of opening and closing of the high and low voltage mechanical switches. However, the damping force generated by the vibration elimination device is in the same direction as the closing bounce of the moving contact. The head produces a closing bounce

Method used

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  • Vibration eliminating device and switching apparatus
  • Vibration eliminating device and switching apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0044] A kind of damping device of the present invention, as figure 1As shown, it includes a cylinder body 1, a piston mechanism 2, a pressure relief device 3 and a channel 4. The cylinder body 1 includes a first end cover 12, a cylinder barrel 11 and a second end cover 13, the first end cover 12 is sealed and fixed on the top end of the cylinder barrel 1, further, the first end cover 12 and the cylinder The barrel 1 is integrally formed; the second end cover 13 is fixed on the bottom end of the cylinder barrel 1 by bolts, and the second end cover 13 and the bottom end of the cylinder barrel 1 are sealed by the first sealing ring 15 . The piston mechanism 2 includes a piston 21 and a piston rod 22 . The piston 21 is arranged inside the cylinder 1 , and the side surface of the piston 21 and the inner surface of the cylinder 11 are sealed by a fourth sealing ring 25 , and the piston 21 can slide relative to the cylinder 11 along the axial direction. The piston 21 divides the i...

Embodiment approach 2

[0056] The difference between Embodiment 2 and Embodiment 1 is only: figure 2 As shown, the channel 4 includes a first channel 41 , a second channel 42 and a third channel 43 . The first channel 41 is built in the first end cover 12 and is in sealing communication with the pressure relief chamber 35 of the pressure relief device, distributed along the radial direction of the first end cover 12; the second channel 42 is arranged outside the cylinder 1, Distributed along the axial direction of the cylinder 11; the third channel 43 is arranged in the cylinder wall of the cylinder 11 and is located on the side of the second end cover 13 and is in sealing communication with the second chamber, distributed along the radial direction of the cylinder 11 . The first channel 41 , the second channel 42 and the third channel 43 are sequentially sealed and communicated with each other.

Embodiment approach 3

[0058] The difference between Embodiment 3 and Embodiment 1 is only: image 3 As shown, the pressure relief device 3 is assembled on the upper end of the cylinder wall of the cylinder 11 , that is, on the side of the first end cover 12 . The pressure relief chamber 35 of the pressure relief device 3 is arranged on the upper end of the cylinder wall of the cylinder 11, which is composed of a bottom wall and a side wall, and the top opening is opened at the outer end of the cylinder 11. Here, the pressure relief device 3 The axis direction determines the top and bottom of the spatial orientation of the pressure relief device 3, and the direction away from the vibration damping device is the top. The end of the stem of the pressure relief valve core 31 is inside the valve seat hole 37 , that is, the end of the stem of the valve core does not protrude from the inner surface of the cylinder 11 . The built-in telescopic rod 313 of the pressure relief valve core 31 extends into the ...

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Abstract

The present invention discloses a vibration eliminating device and a switching apparatus. The device comprises a cylinder, a piston, a piston rod and a pressure relief device. One end of the piston rod passes through a first end cover and stretches into the inside of the cylinder to be fixed with the piston in the cylinder. The piston divides an inner chamber of the cylinder into a first chamber and a second chamber on the first end cover side. The pressure relief device is assembled on the cylinder. A valve plug rod of a built-in pressure relief valve plug extends to the first chamber. A telescopic rod is disposed inside the pressure relief valve plug. The pressure relief device is provided with an adjusting channel suitable for adjusting the stretching length of the telescopic rod. A limiting mechanism is disposed between the telescopic rod and the pressure relief valve plug. The switching apparatus comprises a single pole switch that is connected with the above-mentioned vibration eliminating device in an axial direction. When the switching apparatus is closed, in the last stage of the moving contact travel, the vibration eliminating device relieves damping to avoid that the damping force facilitates the moving contact of the switching apparatus to close and bounce, thereby improving the closing performance. The pressure relief device is disposed on the cylinder, which is convenient for mounting, debugging, maintaining and regulating pressure relief triggering travel.

Description

technical field [0001] The present invention relates to a vibration damping device, in particular to a vibration damping device which releases the damping at the end of the stroke and triggers the stroke to be easily adjusted by the pressure release after the damping is released, and a switchgear using the vibration damping device, which belongs to the vibration damping and reducing device. field of vibration equipment. Background technique [0002] At present, new and higher requirements are continuously put forward for the opening and closing performance of high-voltage and low-voltage mechanical switches, and the opening and closing time is required to be shorter without arcing. This will inevitably make the moving contact of the vacuum bubble, which is the core component of the high and low voltage mechanical switch, have a higher speed when opening and closing, and the moving contact will not bounce when closing, and will not discharge and arc. No rebound, no discharge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/48F16F9/49F16F9/34F16F9/00H01H71/50
CPCF16F9/48F16F9/00F16F9/34F16F9/49F16F2230/18H01H71/504
Inventor 陈鸽
Owner 陈鸽
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