Rotating shaft center steel ball power feeding device

The invention discloses a rotating shaft center steel ball power feeding device, and relates to the technical field of power feeding devices, the rotating shaft center steel ball power feeding device comprises a rotating shaft, one end of the rotating shaft is provided with a taper center hole, and a steel ball is fixedly arranged in the taper center hole; one end of the electric brush is connected with a power inlet wire, and the other end of the electric brush is in contact connection with the surface of the steel ball. The rotating shaft center steel ball electricity feeding device is simple in structure, economical and practical; the cost is low; the working life is long; torque is low, noise is low, operation is smooth, and stability and reliability are high; the method is suitable for high-speed and large-current; and after being abraded, the steel balls have good interchangeability, and the retention degree of rotation precision after interchanging is high. 本发明公开一种旋转轴中心钢珠进电装置，涉及进电装置技术领域，包括旋转轴，所述旋转轴一端开设