Motor bidirectional adjusting mechanism and power assembly reverse dragging test bench

The utility model discloses a motor bidirectional adjusting mechanism and a power assembly reverse dragging test bench. The test bench comprises a belt tensioning device, a motor supporting seat, a bidirectional electric sliding table device and a motor. The motor is fixedly arranged on the upper end surface of the motor supporting seat; an output shaft of the motor is sleeved on one idle pulley of the double-layer belt idle pulley of the belt tensioning device through a primary belt transmission, and a secondary belt transmission of the power assembly is sleeved on the other idle pulley of the double-layer belt idle pulley of the belt tensioning device; the motor supporting seat is connected to the bidirectional electric sliding table device in a sliding manner, and the motor supporting seat can translate in the X direction and the Y direction relative to the bidirectional electric sliding table device; according to the utility model, the positions of the motor and the belt wheel can be accurately and quickl