Millstone dismounting device of vertical mill speed reducer

The utility model discloses a millstone dismounting device of a vertical mill speed reducer, and belongs to the technical field of vertical mill speed reducers. The dismounting device is characterized by comprising a dismounting arm, a high-pressure oil jack (9) is arranged between the lower portion of the dismounting arm and a planet carrier (12) of the vertical mill speed reducer, two fixing bolts (8) are symmetrically arranged on the two sides of the dismounting arm, the two fixing bolts (8) penetrate through the middle of the dismounting arm respectively, and the bottoms of the two fixing bolts (8) are in threaded connection with a millstone (11) respectively. According to the millstone dismounting device of the vertical mill speed reducer, opposite force is applied to the dismounting arm and the planet carrier through the high-pressure oil jack, dismounting of the millstone is achieved through the fixing bolt connected with the millstone, and the defect that the millstone or the planet carrier is prone t