Heavy cross-county traction vehicle

The utility model provides a heavy cross-county traction vehicle, comprising a driver s cab assembly and a chassis. The heavy cross-county traction vehicle is characterized in that the driven means is 8*8 single-tyre all-wheel driving means; the wheels matched with the heavy cross-county traction vehicle are cross-country wheels. The layout pattern of a vehicle axle is front-one back-three type, that is to say, one drive axle is arranged in front of a transfer case and three drive axles which are communicated with each other are arranged at the back part of the transfer case. In addition, a suspension device of the heavy cross-county traction vehicle is an air spring balance suspension device; a steering device a mechanically operated, hydraulic boosted, front oneandd back four axles packet synchronous steering device. The utility model has the advantages of convenient operation, flexibly, comfortable ride, small turning circles diameter, big traction weight, good maneuverability, good cross-country capacity and convenient maintenance.