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Vacuum circuit breaker closing drive mechanism

A technology of vacuum circuit breaker and transmission mechanism, which is applied to high-voltage air circuit breakers, circuits, and high-voltage/high-current switches, etc. Eliminate the effect of closing bounce

Inactive Publication Date: 2019-04-05
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of vacuum circuit breakers, the requirements for the closing bounce time of vacuum circuit breakers are getting higher and higher, and the level of supporting operating mechanisms has also been improved accordingly. However, due to the unreasonable design of the closing transmission mechanism, the closing bounce problem still serious

Method used

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  • Vacuum circuit breaker closing drive mechanism
  • Vacuum circuit breaker closing drive mechanism
  • Vacuum circuit breaker closing drive mechanism

Examples

Experimental program
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Embodiment 1

[0020] Such as figure 1 and figure 2 As shown, this embodiment includes: main shaft connecting rod 1, crank arm 2, transmission shaft 9, crank 4, guide groove 5, moving contact connecting rod 6, moving contact 11 and static contact 8, wherein: main shaft connecting rod 1 is hinged with the crank arm 2, the crank arm 2 is provided with a crank shaft hole, the crank arm shaft hole is fixedly connected with one end of the transmission shaft 9, the transmission shaft 9 is arranged in the bearing hole of the frame 3, and the other end of the transmission shaft 9 is connected to the crank 4 ends are fixedly connected, the top of the crank 4 is set in the guide groove 5, the moving contact connecting rod 6 is set above the guiding groove 5, the moving contact connecting rod 6 is set with a limit sleeve 7 and the top is equipped with a moving contact 11, The moving contact 11 is set corresponding to the static contact 8;

[0021] The guide groove 5 includes a linear groove part and...

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Abstract

The invention discloses a vacuum circuit breaker closing transmission mechanism in the technical field of circuit breakers. The vacuum circuit breaker closing transmission mechanism comprises a spindle connection rod, a crank arm, a transmission shaft, a crank shaft, a guiding groove, a moving contact connection rod, a moving contact and a static contact, wherein the spindle connection rod and the crank arm are hinged; the crank arm is provided with a crank arm shaft hole; the crank arm shaft hole is fixedly connected with one end of the transmission shaft; the transmission shaft is arranged in the shaft hole in a rack; the other end of the transmission shaft is fixedly connected with the tail end of the crank shaft; the top end of the crank shaft is arranged in the guiding groove; the moving contact connection rod is arranged above the guiding groove; the moving contact connection rod is movably provided with a limiting shaft sleeve; the top part of the moving contact connection rod is provided with the moving contact; and the moving contact and the static contact are arranged correspondingly. The vacuum circuit breaker closing transmission mechanism has the advantages that the closing bouncing problem can be solved, the reliability is high, the transmission is smooth and the like.

Description

technical field [0001] The invention relates to a technology in the field of circuit breakers, in particular to a closing transmission mechanism of a vacuum circuit breaker. Background technique [0002] The closing transmission mechanism connects the operating mechanism and the vacuum bubble, and converts the rotary motion output by the operating mechanism into the linear motion of the moving contact of the vacuum bubble. With the rapid development of vacuum circuit breakers, the requirements for the closing bounce time of vacuum circuit breakers are getting higher and higher, and the level of supporting operating mechanisms has also been improved accordingly. However, due to the unreasonable design of the closing transmission mechanism, the closing bounce problem Still serious. Contents of the invention [0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention proposes a closing transmission mechanism of a vacuum circuit breaker, which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/666
CPCH01H33/666
Inventor 赵梓杰任书锋罗兆瑞钟泽杉郭为忠
Owner SHANGHAI JIAO TONG UNIV
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