A circuit breaker spring operating mechanism

A technology of operating mechanism and circuit breaker, applied in the direction of high-voltage air circuit breaker, circuit, high-voltage/high-current switch, etc., can solve the problems of complex overall structure, slow opening and tripping action, etc., and achieve simple overall structure and tripping operation. Quick and easy effects

Active Publication Date: 2019-04-26
HENAN PINGGAO GENERAL ELECTRIC CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a circuit breaker spring operating mechanism to solve the problem that the existing spring operating mechanism is equipped with an opening detent and a buckle plate to cooperate with the opening half shaft, which makes the opening and tripping action slow and the overall structure is relatively complicated. technical issues

Method used

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  • A circuit breaker spring operating mechanism
  • A circuit breaker spring operating mechanism
  • A circuit breaker spring operating mechanism

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Embodiment Construction

[0018] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0019] The specific embodiment of the circuit breaker spring operating mechanism provided by the present invention is as Figure 1 to Figure 5 As shown, the spring operating mechanism in this embodiment includes a mechanism box 200. The mechanism box 200 mainly includes a plurality of mounting plates arranged laterally along the left and right sides, and these mounting plates are correspondingly assembled together through a plurality of shafts extending laterally.

[0020] On the mounting plate of the mechanism box 200, there is a camshaft 2 extending laterally from left to right. The camshaft 2 is also called an energy storage shaft. The closing cam 13 is coaxially fixed on the camshaft 2. The left and right ends of 2 are provided with energy storage toggle arms 3, and each energy storage toggle arm 3 is connected with a closing spring 1, and double clo...

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Abstract

The invention relates to a spring operating mechanism of a circuit breaker, which comprises a mechanism box, in which a camshaft is arranged, and a closing cam is arranged on the camshaft, and the closing camshaft is connected to the closing spring through an energy storage crank arm. There is also a driving main shaft in the middle, on which the closing lever part, the driving lever part and the closing holding plate are fixed, and the mechanism box is equipped with a tripping semi-axis, which has the same rotation stroke as the tripping semi-axis. The closing holding plate is contacted and stopped to cooperate with the closing holding plate and the drive main shaft to lock the driving crank arm part in the closing holding position of the closing position, and also has a tripping avoidance position of the closing holding plate. Use the tripping half shaft to directly stop and limit the closing holding plate, and then realize the closing and holding limit of the driving main shaft. It only needs to drive the tripping half shaft to rotate to the avoidance position, and the opening holding plate can be quickly tripped , the overall structure is relatively simple, and the tripping operation is quick and convenient.

Description

technical field [0001] The invention relates to a circuit breaker spring operating mechanism, belonging to the field of circuit breaker operating mechanisms. Background technique [0002] At present, the operating mechanism used in the domestic 40.5kV medium voltage circuit breaker belongs to the structure of sliding curved wheel, crank arm and four-linkage. The upper four-link structure is an unstable structure, which causes unstable operation characteristics, often resulting in insufficient closing, secondary energy storage failure, and changes in opening and closing speeds. It adds a lot of hidden dangers to the circuit breaker in the operation process, and also brings unstable factors to people's production and life. [0003] In the Chinese Utility Model Patent Specification whose authorized announcement number is CN200965845Y, a small spring operating mechanism of a high-voltage circuit breaker is disclosed, including a mechanism box in which an energy storage transmis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/40
CPCH01H33/40
Inventor 许海超刘晓焱许晓明张海卓会丹刘宁高正付沈景贵赵辉王强
Owner HENAN PINGGAO GENERAL ELECTRIC CO LTD
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