Re-closure transmission mechanism with clutching function in circuit breaker re-closure device

Abstract

The invention discloses a re-closure transmission mechanism with the clutching function in a circuit breaker re-closure device. The re-closure transmission mechanism comprises a shell, a forward and reverse rotation motor, a main shaft and a driving handle, wherein the forward and reverse rotation motor and the main shaft are arranged inside the shell, and the driving handle is used for driving linkage of a handle of a circuit breaker. A transmission piece and a transmission part are arranged on the main shaft in a rotating mode. A clutching sliding block is arranged on the shell in a slippage mode, wherein the axial direction of the main shaft is the same as that of the clutching sliding block. A linkage plate stretching into the shell is arranged at the inner end of the clutching sliding block. The main shaft is axially sleeved with the transmission part in a slippage mode. The linkage plate and the transmission part are in synchronous linkage in the axial direction of the main shaft. The clutching sliding block drives a linkage shaft of the transmission part to be gradually disengaged from an arc groove axially in the slippage process. The re-closure transmission mechanism has the advantages that clutching control can be carried out on linkage between the forward and reverse rotation motor and the driving handle, and therefore safe line repair is ensured.

Description

technical field [0001] The invention relates to a reclosing device of a circuit breaker, in particular to a reclosing transmission mechanism with a clutch function in the reclosing device of a circuit breaker. Background technique [0002] With the development of my country's smart grid, under the premise of requiring the grid to operate safely, it is urgent to control electrical appliances intelligently. For example, the combined use of prepaid energy meters and prepaid miniature circuit breakers (such as MM7S and MM10S series products produced by Zhejiang Mikeli Electric Co., Ltd.) can allow electricity users to automatically cut off the power supply when the prepaid electricity fee is exhausted. This greatly facilitates the distribution and control of electric energy by the power supply unit. However, after the user renews the fee, the user's circuit breaker cannot be automatically closed in time, and the user or the power supply staff need to manually operate, which bri...

AI Technical Summary

Problems solved by technology

Although this structure realizes the function of automatic closing, it has the following defects: when the user renews the fee, the threaded sleeve slides, drives the shift fork and the handle to perform the closing action, and the handle of the control mechanism then drives the handle of the circuit breaker clockwise. Rotate to close, but for the prepaid circuit device, when the user owes the fee or the circuit fails, it will automatically trip, and the handle of the circuit breaker will reset counterclockwise, but the electric operating mechanism of the above-mentioned reference document (101707169A) The control handle is always limited behind the handle of the circuit breaker, causing the handle of the circuit breaker to fail to turn and trip

[0005] When the automatic closing device of this structure is used in conjunction with the circuit breaker, if the remote control terminal misoperates when it is necessary to perform on-site maintenance on the energized line, it will send a drive signal to the forward and reverse motor to make the automatic closing device close again. action, and drive the circuit breaker to close, which will cause the maintenance line to be energized, which will cause great hidden dangers to the life safety of the maintenance workers

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