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Closing keeping and break-brake tripping device for breaker spring operating mechanism

It is a technology of closing and maintaining and operating mechanism, which is applied to the power device inside the switch, the operation/release mechanism of the protection switch, etc., which can solve the problems of system stability impact, reliability reduction, and high reliability requirements for system action response. Achieve the effect of reducing response time and improving reliability

Active Publication Date: 2015-01-28
西安西电高压开关操动机构有限责任公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure requires the device to complete two-stage locking in a short period of time, which requires high reliability of the system's action response; in addition, the operating impact force and the vibration of the mechanism support will affect the stability of the system.
The device may appear "closed and separated" phenomenon under the condition of large mechanism operation vibration, its reliability will be reduced, and product quality will be affected

Method used

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  • Closing keeping and break-brake tripping device for breaker spring operating mechanism
  • Closing keeping and break-brake tripping device for breaker spring operating mechanism
  • Closing keeping and break-brake tripping device for breaker spring operating mechanism

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Embodiment Construction

[0020] Such as figure 1 , 2 As shown, the device of the present invention includes an output crank arm 1, a movable crank arm 8, a closing latch 17, a cam driving device, and an opening and closing trigger device.

[0021] The output crank arm 1 is fixed on the output shaft 3 and has an irregular shape. In this embodiment, the output crank arm 1 is in the shape of a four-clawed fish. According to the clockwise direction, they are respectively the first, second, third and The fourth corner position; the opening lever 31 is fixed at the position of the first corner, and the other end of the opening lever 31 is connected with the opening spring 29; the connecting mechanism 7 is fixed at the second corner, and the connecting mechanism 7 The other end is connected with the circuit breaker; the position of the third corner is equipped with a movable crank arm 8 through the pin 9; the position of the fourth corner is fixedly installed with a roller 35, and the roller drives the outp...

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Abstract

The invention discloses a closing keeping and break-brake tripping device for breaker spring operating mechanism, the device is used for closing keeping and break-brake operation of the spring operating mechanism. The device comprises an output connecting lever, a closing keeping trigger, limit pin, breaking-closing trigger, an active connecting lever and a reset spring driven by a cam system and connected to a breaker through a connection mechanism, wherein the output connecting lever is provided with the active connecting lever, a guide piece and the reset spring, the closing keeping lock pin is mounted on the active connecting lever. After finishing closing, the closing keeping lock pin is locked by the second level closing keeping locking mechanism between the output connecting lever and the breaking trigger, the closing operation has the self-lock stable state. The device can stably keep the mechanism and the breaker at the closing position.

Description

technical field [0001] The invention relates to a spring operating mechanism of a circuit breaker, in particular to a closing, opening and tripping device of the spring operating mechanism of a circuit breaker. Background technique [0002] The closing and opening release device of the spring operating mechanism used in the original circuit breaker includes two-stage locks. The first stage is composed of the closing and holding latch pin on the output arm and the closing and holding detent. The second stage is composed of It consists of an opening trigger and a closing latch. The second-level lock is in the open state at the opening position of the mechanism, during the closing process, and before the closing is in place. The locks can be completed sequentially only after the device is reset. This structure requires the device to complete two-stage locking in a short period of time, which requires high reliability of the system's action response; in addition, the operating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10H01H3/30
CPCH01H3/30H01H71/10
Inventor 张强苏菊芳邓洪祥党德旺
Owner 西安西电高压开关操动机构有限责任公司
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