Concrete surface polishing device

The utility model relates to a concrete surface polishing device which is characterized by comprising a main beam frame (1), a walking system (2), a transverse polishing system (3), a longitudinal polishing system (4), an outer side polishing system (5) and a device control system (6). The main beam frame (1) is formed by connecting two transverse supporting rods and two longitudinal supports. The longitudinal grinding system (4) is fixed on a transverse bracket of the main beam frame (1); the transverse grinding system (3) is fixedly connected with a transverse bracket and a longitudinal bracket of the main beam frame; the outer side polishing system (5) is fixed on the outer side of a longitudinal bracket of the main beam frame (1); and the device control system (6) is fixed on the main beam frame (1). The concrete surface polishing device is suitable for polishing concrete surfaces, is particularly suitable for polishing concrete track plates of high-speed railways, and has the advantages of being simple i