Vibration remover and circuit breaker

Abstract

The invention discloses a vibration remover and a circuit breaker. The vibration remover comprises a cylinder, a piston, a piston rod and a pressure relief device. One end of the piston rod penetrates a first end cover, stretches into the cylinder and is fixed with the piston in the cylinder. 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 towards the first chamber. A telescopic rod is arranged in the pressure relief valve element. The pressure relief device is provided with an adjusting channel enabling the length of the stretching part of the telescopic rod to be conveniently adjusted. A limiting mechanism is arranged between the telescopic rod and the pressure relief valve element. The pressure relief device and the second chamber are communicated through a channel with an adjusting valve. The circuit breaker comprises a single-pole switch axially connected with the vibration remover. In the switch-on process, damping is relieved through the vibration remover at the stroke tail segment of a movable contact of the circuit breaker, the situation that damping force promotes switch-on bouncing of the movable contact is avoided, and switch-on time is shortened. The intensity of damping relieving is adjusted, the vibration remover and the circuit breaker synergistically act, and the switch-on performance is optimized.

Description

technical field

[0001] The present invention relates to a shock absorber, in particular to a shock absorber that can be easily adjusted for the pressure relief trigger stroke and damping release strength at the end of the stroke, and a circuit breaker using the shock absorber. , 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 arcing. When the switch is closed, the high-speed moving moving contact of the vacuum bub...

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