Power driving mechanism for rail robot

The power driving mechanism comprises a base, an installation base and a second motor box are fixedly connected to the upper surface of the base, a plurality of fixing holes are formed in the upper surface of the installation base, and a second servo motor is fixedly connected to the bottom of an inner cavity of the second motor box. The output end of the second servo motor penetrates through the top of the inner cavity of the base and is fixedly connected with a first gear, mounting plates are fixedly connected to the left side and the right side of the bottom of the inner cavity of the base, and second gears are movably connected to the inner sides of the mounting plates. Through the arrangement of the first motor box, the driving wheel, the first servo motor, the sliding block, the fixing frame, a screw rod, a second servo motor, a first gear, a mounting plate, a second motor box and a second gear, the purpose of conveniently adjusting the distance between the wheels is achieved, and the problem that an ex