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Vibration damping device and switch equipment

A vibration damping device and cylinder block technology, which is applied in the direction of shock absorbers, electric switches, mechanical equipment, etc., to achieve the effect of convenient pressure relief trigger stroke, improve adjustment accuracy, and avoid rebound

Inactive Publication Date: 2016-04-06
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 opening and closing movement performance of the high and low voltage mechanical switches, but the damping force generated by the vibration damping device is in the same direction as the closing bounce of the moving contact. closing bounce

Method used

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  • Vibration damping device and switch equipment
  • Vibration damping device and switch equipment
  • Vibration damping device and switch equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0042] A damping device of the present invention, such as figure 1 As 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 inn...

Embodiment approach 2

[0053] 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

[0055] 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 . 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 cylinder body 1. The part is a spherical crown, and can also be incl...

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Abstract

The invention discloses a vibration damping device and switch equipment. The device comprises a cylinder, a piston, a piston rod and a pressure relief device. One end of the piston rod penetrates a first end cover and stretches into the cylinder, and the piston rod and the piston in the cylinder are fixed. An inner chamber of the cylinder is divided by the piston into a first chamber and a second chamber which are located on the side of the first end cover. The pressure relief device is assembled on the cylinder. A valve element rod of a pressure relief valve element arranged in the pressure relief device extends into the first chamber. A telescopic rod is arranged in the pressure relief valve element and used for adjusting the pressure relief trigger stroke. A first limiting mechanism for preventing the telescopic rod and the pressure relief valve element from relatively rotating is arranged between the telescopic rod and the pressure relief valve element. The switch equipment comprises a single-pole switch axially connected with the above vibration damping device. In the switch-on process of the switch, damping is relieved through the vibration damping device at the stroke tail segment of a movable contact, the situation that damping force promotes switch-on bouncing of the movable contact is avoided, and the switch-on performance is improved. The pressure relief device is arranged on the cylinder, and mounting, adjusting, maintaining and adjusting of the pressure relief trigger stroke are facilitated.

Description

technical field [0001] The present invention relates to a vibration damping device, in particular to a vibration damping device that generates damping at the front end of the stroke and releases damping at the end of the stroke, and can adjust the trigger stroke of the pressure relief after damping is released, and a switchgear using the vibration damping device. It belongs to the field of vibration 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 a...

Claims

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Application Information

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IPC IPC(8): F16F9/48F16F9/34F16F9/32H01H1/50
CPCF16F9/48F16F9/325F16F9/34H01H1/50
Inventor 陈鸽
Owner 陈鸽
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