Scraper machine provided with return material clearing device

The utility model provides a scraper machine provided with a return material clearing device. The scraper machine comprises a machine head, a machine tail, a middle section, the return material clearing device, a speed reducer, a scraper chain, a return guide rail and a driving part, wherein the machine head and the machine tail are respectively positioned on two ends of the scraper machine; the middle section is arranged between the machine head and the machine tail; the return material clearing device and the scraper chain are positioned in the middle section; the return material clearing device and the outer wall of the middle section are fixed together; the return guide rail is positioned below the scraper chain; the driving part is positioned between the middle section and the machine head; the speed reducer is arranged above the driving part; the return material clearing device comprises a crank, flange bearings, a sweeping plate and a welding flat steel; the crank is connected with the welding flat steel; the flange bearings are fixedly arranged at two ends of the crank; the flange bearing is in bolted connection with the outer wall of the middle section; the lower end of the welding flat steel is connected with the sweeping plate. The scraper machine is capable of effectively clearing the scraper chain, is convenient to detach and simple to maintain and repair, and has a working state and a non-working state which are quite flexible to switch.