High voltage circuit breaker transmission shaft device

The utility model relates to a high voltage circuit breaker transmission shaft device, including the transmission main shaft, respectively be provided with the support that is used for supporting thetransmission main shaft at the both ends of transmission main shaft, support and transmission main shaft pass through joint bearing and connect. The utility model discloses can reduce the machining precision of transmission main shaft and supporting seat to can provide the operating physical force to electrically conductive main contact reliably. 本实用新型涉及种高压交流断路器传动轴装置，包括传动主轴，在传动主轴的两端各设置有用以支撑传动主轴的支座，所述支座和传动主轴通过关节轴承连接。本实用新型能够降低传动主轴及其支撑座的加工精度，并能可靠地向导电主触头提供操作力。