Cement mill roll squeezer planetary reducer

The utility model discloses a cement mill roll squeezer planetary reducer, including box, input shaft and output shaft to and transmission shaft, a planetary gear train and two planetary gear train of setting in the box, the first gear of fixedly connected with on the input shaft, fixedly connected with second gear on the transmission shaft, first gear and the 2nd gear engagement. Between taking turns, a planetary gear train's asteroid frame is provided with little bearing with the asteroid, the staff holds both sides and is provided with little retaining ring, it is that the bearing is that both sides are provided with big retaining ring to be provided with the bearing between the 2nd planetary gear train's major planet frame and the major planet wheel, output shaft and major planet wheel fixed connection. The staff holds both sides and sets up little retaining ring, and the bearing is that both sides are provided with big retaining ring, prevents that little bearing or bearing system from damaging the back, and ball in the bearing internal portion of into boxes that drops leads to the fact the damage of all the other parts, this device simple structure, simple to operate.