Tarpaulin driving device for compartment

The utility model relates to a tarpaulin driving device for a compartment. A motor installation seat is made of C-shaped channel steel, an installation seat cover plate is fixed to the position of an opening in the front end of the motor installation seat, and a small duplex wheel and a large duplex wheel are arranged in space defined by the rear end face of the installation seat cover plate and the motor installation seat and are each composed of a gear and a rope sheave which are connected into a whole and are coaxial with each other. The small duplex wheel is fixed to an output shaft of a motor driving mechanism, the large duplex wheel is fixed to a large duplex wheel shaft through a bearing, the two ends of the large duplex wheel are supported on the motor installation seat and the installation seat cover plate respectively, and a small gear of the small duplex wheel is meshed with a large gear of the large duplex wheel. A sliding block is fixed to the front end face of the installation seat cover plate,