Rapid steel rail grinding wagon

The invention relates to a rapid steel rail grinding wagon, which comprises a grinding wagon frame (5). A front bogie (4) and a rear bogie (4) are installed at the bottom of the grinding wagon frame (5), a grinding trolley (6) is installed between the front bogie (4) and the rear bogie (4), a functional room (7) is installed on the upper portion of the grinding wagon frame (5), and a dust suctiondevice (10) is installed in the functional room. By conducting low-grinding-amount pre-grinding and preventive grinding on the steel rail, germination of steel rail diseases can be effectively restrained, the service life of the steel rail is greatly prolonged, and wheel rail impact noise is reduced; by adopting a passive circumferential grinding principle, bidirectional driving operation and multi-vehicle reconnection can be realized, and the highest speed per hour of grinding operation can reach 60 km/h or above. The grinding wheels in rows are fixed to the rigid beam and are equivalent to asmooth surface and always