Special gearbox for thin coal seam mining drill rig

The utility model discloses a special reduction box for a thin coal seam mining rig, comprising a casing (10), a first bevel gear shaft (1), a second gear shaft (3), a third gear shaft (5) and an output shaft (7), wherein the first bevel gear shaft (1), the second gear shaft (3), the third gear shaft (5) and the output shaft (7) are provided in the casing (10) via a bearing, the first bevel gear shaft (1) is meshed with a first bevel gear (2) on the second gear shaft (3), the second gear shaft (3) is meshed with a second gear (4) on the third gear shaft (5), and the third gear shaft (5) is meshed with a third gear (6) on the output shaft (7). The utility model adopts the speed reduction box to transmit the force generated by the drilling rod of a working mining rig to the frame of the mining rig, to improve the force condition on the speed reduction box, reduce the size of the speed reduction box, reduce the volume of the mining rig, reduce production box and improve utilization ratio.