A circuit breaker motor operated mechanism

Abstract

The utility model discloses a circuit breaker electric operating mechanism, including motor and the drive shaft, eccentric wheel and connecting rod subassembly of setting between left side plate and right side plate, motor connects drive shaft, and the eccentric wheel is rotatoryly set between left side plate and right side plate through drive shaft, and a group of bearings that are rotatoryly connected with drive shaft are correspondingly arranged on left side plate and right side plate, and the eccentric wheel promotes connecting rod subassembly to do reciprocating swing when being driven by motor. The drive shaft in this technical scheme is rotatoryly connected on the mechanism side plate in bearing mode, greatly reduces the friction coefficient and the wear rate, according to bearing has higher carrying capacity and rigidity, can inhibit radial runout through the stable support of drive shaft, reduces the mechanism vibration amplitude, guarantees the accuracy and stability of transmission relationship, thereby promotes the mechanical life and operation reliability of whole operating mechanism, makes operating mechanism run more quiet, stable.