Application No.: 201010209087

Application Time: June 24, 2010

Announcement Time: Oct 20, 2010

Patentee: Chongqing Yunda Mechanical and Electrical Equipment Manufactur Co.,Ltd Huang Yilu Chen Chaoli

This patent relates to a kind of small size rail internal combustion belt sander including the machine frame, abrasive belt transmission installed on the machine frame, walking contour wheel and explosive motor or high-speed motor on the transmission. The machine frame rides on the rail through two walking contour wheels. The abrasive belt transmission device consists of driver, driven pulley, tension device and abrasive belt. The abrasive belt is tightly set on the driver, driven pulley and tension wheel in the form of triangular distribution, then it can tension with tension device linking with tension wheel. The adjusting device of polishing depth uses the threaded rod adjustment structure, including adjusting handle, threaded rod, nut, fixed jacket and feather key. This belt sander has the features of simple structure, small size, light weight, and is convenient for the railway works department to finish rail welding and repair welding with high-efficiency in the short time of skylight.