Shaft sleeve dismounting tool

The invention discloses a shaft sleeve dismounting tool, and belongs to the technical field of oil and gas transmission. The shaft sleeve dismounting tool comprises a support, a heating resistance wire, a clamping assembly and a stress application assembly. The clamping assembly can comprise an adjusting plate and a plurality of clamping pieces. The stress application assembly can comprise a stress application rod, a protruding structure and a heavy hammer. When the shaft sleeve dismantling tool needs to be adopted to dismantle a shaft sleeve connected to a pump shaft in a centrifugal pump in a sleeving mode, the shaft sleeve to be dismantled can be heated through the heating resistance wire in the support, and then the position of each clamping piece in the clamping assembly connected with the first end of the support is adjusted; one end of each clamping piece can abut against the end, away from the support, of the shaft sleeve to be disassembled, finally, the support is subjected to acting force in the dir