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Damping shock absorber and switch device

A shock absorber and damping technology, applied in the field of switchgear, damping shock absorber

Inactive Publication Date: 2016-03-16
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 the opening and closing of the high and low voltage mechanical switches, but the damping force generated by the damping shock absorber is in the same direction as the closing bounce of the moving contact. The contact produces a closing bounce

Method used

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  • Damping shock absorber and switch device
  • Damping shock absorber and switch device
  • Damping shock absorber and switch device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0040] A kind of damping shock absorber of the present invention, as figure 1 As shown, it includes a cylinder 1, a piston mechanism 2, a pressure relief device 3, a channel 4 and a regulating valve 6. 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. T...

Embodiment approach 2

[0048] 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 connected in a sealed manner, and the regulating valve 6 is arranged on the second channel 42 and communicated with it in a sealed manner.

Embodiment approach 3

[0050] 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 damping shock absorber 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 cy...

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Abstract

The invention discloses a damping shock absorber and a switch device. The damping shock absorber comprises a cylinder body, a piston, a piston rod and a pressure relief device. One end of the piston rod penetrates a first end cover and extends into the cylinder body to be fixed to the piston in the cylinder body. The cylinder body is separated into a first cavity located in one side of the first end cover and a second cavity through the piston. The pressure relief device is assembled to the cylinder body. The valve element rod portion of a pressure relief valve element arranged in the pressure relief device extends to the first cavity. A telescopic rod is arranged in the pressure relief valve element. The pressure relief device is provided with an adjusting channel so that the extension length of the telescopic rod can be adjusted conveniently. The pressure relief device is communicated with the second cavity through a channel with a control valve. The switch device comprises a single-pole switch connected with the shock absorber in the axial direction. When the switch is switched on, in the last stage of the moving contact stroke, damping is released through the shock absorber, it is avoided that the switch moving contact switch-on bouncing is promoted through the damping force, and the switch-on time is shortened; and the strength of damping release is adjusted, the damping shock absorber and the switch device act in a synergistic manner, and switch-on performance is optimized.

Description

technical field [0001] The present invention relates to a damping shock absorber, in particular to a damping shock absorber that can be easily adjusted for the pressure relief trigger stroke and damping release strength at the end of the stroke, and the damping shock absorber The switchgear of the invention belongs to the field of damping 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 arcing. When the switch is closed, the high-speed moving moving contac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/32F16F9/34
CPCF16F9/3235F16F9/3242F16F9/34
Inventor 陈鸽
Owner 陈鸽
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