A gear transmission mechanism on a ground knife

Abstract

The invention relates to a motor transmission mechanism, in particular to a gear transmission mechanism used in a high-voltage switchgear for controlling grounding or disconnection of a ground knife. The present invention adopts the following technical solutions: a gear transmission mechanism on the grounding knife, which is characterized in that: the toothed disc includes an inner disc and an outer disc, wherein the inner disc is sleeved on the grounding knife installation shaft and cooperates with the installation shaft in a circumferential direction. The outer disk is rotatably arranged on the inner disk, a pinball locking mechanism is arranged between the inner disk and the outer disk, and a tooth pattern is arranged on the outer surface of the outer disk, and concave grooves are arranged on both sides of the tooth pattern. By adopting the above scheme, the present invention overcomes the deficiencies in the prior art, and provides a new type of switch that can operate the grounding knife to close or disconnect, and will not damage the gear or burn the motor when the motor is out of control. The gear transmission mechanism on the ground knife.

Description

technical field [0001] The invention relates to a motor transmission mechanism, in particular to a gear transmission mechanism used in a high-voltage switchgear for controlling grounding or disconnection of a ground knife. Background technique [0002] In the prior art, the closing and disconnecting of the grounding knife can be divided into two situations, one is manual operation, which is very common and a very conventional way, and the other is electric mode, such as patent number 201220169326.3 The patent of "An Electric Grounding Knife", the grounding knife is driven through the gear set, so that the motor can control the closing or disconnecting of the grounding knife. The disadvantage of this method is: when the motor is out of control, the gear Mutual force just easily destroys between, and just can't rotate after the shaft of grounding knife rotates to switch-on or break-off position like this, then gear set will damage or burn motor, and so just easily takes place ...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the closing and disconnecting of the grounding knife can be divided into two situations, one is manual operation, which is very common and a very conventional way, and the other is electric mode, such as patent number 201220169326.3 The patent of "An Electric Grounding Knife", the grounding knife is driven through the gear set, so that the motor can control the closing or disconnecting of the grounding knife. The disadvantage of this method is: when the motor is out of control, the gear It is easy to be damaged by mutual force between them, so that the shaft of the grounding knife cannot rotate after it is turned to the closing or disconnecting position, and the gear set will be damaged or the motor will be burned, which is prone to safety accidents

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