Foldable land-rail dual-purpose steel rail welding seam abrasive belt grinding equipment

The invention relates to foldable land-rail dual-purpose steel rail welding seam abrasive belt grinding equipment which comprises a rack, a rail clamping mechanism, a walking mechanism and a foldable abrasive belt grinding mechanism. The rail clamping mechanism is arranged at the front end of the rack and used for detachably clamping a steel rail to be polished. The walking mechanism is arranged at the rear end and the bottom of the rack and used for walking on the land and a track. The foldable abrasive belt grinding mechanism is arranged in the middle of the rack and used for grinding steel rail welding seams. According to the grinding equipment, an abrasive belt is used as a grinding tool, the steel rail web weld joint grinding efficiency can be remarkably improved, the foldable abrasive belt grinding mechanism is adopted, multi-degree-of-freedom profiling grinding of weld joints on the two sides of a rail web can be achieved, and the whole machine can be rapidly fixed to a steel rail through the rail clam