Dismounting device for lower TC bearing movable sleeve

The utility model discloses a dismounting device for a lower TC bearing movable sleeve. The dismounting device comprises a pair of transverse plates, a screw rod is in threaded connection in a preset screw hole in each transverse plate, a semi-arc-shaped check ring is fixedly connected to one end of each screw rod, a cutting edge plate is fixedly connected to one end face of each semi-arc-shaped check ring, a cutting edge is arranged on the inner side of each cutting edge plate, and when the screw rods rotate, the cutting edge plates are fixedly connected with the semi-arc-shaped check rings; the cutting edge plate is driven to be inserted into a gap between the lower TC bearing movable sleeve and the shoulder of the transmission shaft; and the power telescopic mechanism is used for pushing the transmission shaft to be separated from the lower TC bearing movable sleeve when the telescopic end of the power telescopic mechanism extends out. The TC bearing movable sleeve pushing and unloading device can push and