Three-phase asynchronous motor

The invention discloses a three-phase asynchronous motor comprising a machine body, a mounting frame and a power connection component, a trapezoidal seat is fixedly arranged at the top of the machine body, a control frame plate is fixedly arranged at the upper end of a sliding rail, two shielding shell sleeves are slidably connected to the upper side of the sliding rail, and a driving gear is rotatably connected to the inner side of the control frame plate. Racks are fixedly arranged at the inner ends of the two shielding shell sleeves, and a twisting type transmission mechanism for driving the shaft rod to rotate is arranged in a reducing sleeve. According to the invention, firstly, through the movable shielding shell sleeve, a worker can conveniently carry out operation treatment on power connection of the motor, the safety of the power connection operation of the worker can be ensured; secondly, the flexible rubber sleeve realizes wrapping of a line penetrating through the line hole groove, dust is prevent