Movable overhauling power supply vehicle for mine

The utility model relates to a movable maintenance power supply vehicle for a mine, which comprises a vehicle box and wheels, the wheels are arranged at the bottom of the vehicle box, a plurality of storage batteries connected with a coal mine cable are arranged in the vehicle box, a driving assembly capable of driving the wheels to rotate is arranged in the vehicle box, and the driving assembly comprises a driving motor, a driving gear, a driven gear and a chain. The driven gear is fixedly arranged on an axle of the wheel, the driving gear is connected with an output shaft of the driving motor, the chain is arranged on the driving gear and the driven gear in a sleeving mode, a containing groove matched with the storage battery is formed in the carriage, a cover plate is arranged on the storage battery, and reinforcing supporting rods capable of being hooked with the carriage are in threaded connection with the two ends of the cover plate. When the mine power supply device works at a deeper position in a mine