Clamping mechanism and coal mine truck tire carrying device

The utility model discloses a clamping mechanism and a coal mine truck tire carrying device, and relates to the technical field of unmanned dump trucks. The device comprises a supporting assembly which comprises a framework and a telescopic rod, and the telescopic rod is arranged at one end of the framework; the driving assembly comprises an air cylinder which is arranged on the framework. The clamping assembly comprises a pushing piece, a withdrawing piece, a lifting piece and a connecting piece, the two sides of one end of the pushing piece are connected with the air cylinder and the telescopic rod respectively, the framework is sleeved with the pushing piece and the withdrawing piece, the connecting piece is arranged in the middle of the side wall of the framework, the two ends of the connecting piece are connected with the pushing piece and the withdrawing piece, and the lifting piece is arranged on the pushing piece. The transportation assembly comprises a bearing part, a load bearing part and rollers, t