Bush dismounting device

The utility model discloses a bush dismounting device relates to the instrument or the bench device field that are used for fastening, connection, dismantlement or centre gripping, and bush dismounting device is including the bloated tight structure of the clamping hub hole that is used for expanding, the tight structure that expands includes at least two the tight pieces that expand, the bush fitting surface that is used for with bush hole wall tight fit has on the bloated tight piece, bush dismounting device still merges the pull rod of pulling out the bush including being used for making expanding tight with the bush close -fitting, the pull rod is equipped with the bloated tight piece fitting surface that is used for with the tight piece tight fit that expands, be equipped with on thebloated tight piece and drawing direction block complex pull rod fitting surface with the tight fitting surface that expands carrying of pull rod, expanding in tight piece fitting surface and the pullrod fitting surface, at l