Special tool for disassembling and assembling inner sleeve shaft check ring of ingot

The utility model discloses a special tool for disassembling and assembling an inner sleeve shaft check ring of an ingot, mainly comprising a rack; the bottom of the rack is provided with a positioning hole for fixing the ingot; a top beam is arranged above the positioning hole and is provided with a thread hole which is internally provided with a matched lead screw; the bottom of the lead screw is connected with a lead screw top head which can be embedded into a distance at which an inner sleeve and an outer sleeve of the ingot are arranged; the connecting position of the lead screw and the lead screw top head is provided with a bearing; the top of the lead screw is provided with a rotary structure for rotating the lead screw; and the rotary structure can be a handle, a rotating disc and the like. When in use, the ingot is fixed in the positioning hole, and the lead screw is rotated so as to lead the lead screw top head to move downwards along with the lead screw; and the lead screw top head extends into the