Transmission mechanism and coal mining machine with same

The utility model provides a transmission mechanism and a coal mining machine with the same, the transmission mechanism comprises a power assembly, a first-stage planetary reducer and a second-stage planetary reducer which are connected in sequence, the second-stage planetary reducer comprises a bearing seat, a first-stage planetary reducer and a second-stage planetary reducer, and the bearing seat is provided with a positioning protrusion; the bearing seat is arranged at the end of the inner gear ring, a positioning groove is formed in the inner gear ring, and at least part of the positioning protrusion is inserted into the positioning groove; and the multiple planet wheel sets are sequentially arranged around a planet carrier of the second-stage planetary reducer, and the multiple planet wheel sets are all meshed with the inner gear ring. According to the utility model, the problem of short service life of the coal mining machine in the prior art is solved. 本实用新型提供了一种传动机构及具有其的采煤机，包括依次连接的动力组件、一级行星减速器和二级行星减速器