Machine head device for mining scraper reversed loader

The utility model discloses a machine head device for a mining scraper reversed loader, which comprises a machine head frame and a speed reducer, the speed reducer is mounted on one side of the machine head frame, a rotating shaft is mounted at one end of the inner side of the machine head frame in an embedded manner, and two end parts of the rotating shaft are sleeved with annular chain wheels. The chains are arranged on the same side and are in rotating contact with the two rotating rings on the same side, the limiting rings limit the chains, through supporting and limiting of the rotating rings, the chains can still rotate normally without a chain pressing device, displacement of the chains is not prone to being caused, friction can be reduced through rotating contact, and abrasion of the rotating rings is reduced; and the direction is changed and friction to the chain is decomposed and weakened through overall inclination of the headstock, the transition casting, the transition groove and the middle groov