Differential type bearing removing device

The invention relates to bearing removing devices, in particular to a differential type bearing removing device. The differential type bearing removing device comprises a power shaft, a pre-tightening sleeve, an upper differential sleeve, movable links, a lower differential sleeve, connecting plates, arc-shaped clamping plates and pins, wherein the power shaft is in threaded connection with the pre-tightening sleeve, the upper and lower differential sleeves are in threaded connection with the pre-tightening sleeve respectively, the upper ends of the connecting plates are connected with the upper differential sleeve through bolts, the middles of the connecting plates are connected with the movable links through bolts, and the lower ends of the connecting plates are connected with the arc-shaped clamping plates through bolts. The differential type bearing removing device has the beneficial effects that the structure is simple, the use is convenient, and the upper differential sleeve and the lower differential sleeve form differential motion, so that the stroke length of the upper and lower differential sleeves on the pre-tightening sleeve is shortened, and the size of a bearing removing tool is reduced; threads are formed in inner arc faces of the arc-shaped clamping plates, so that the friction between the inner arc faces and a cylindrical face of a bearing is increased, and removal is facilitated; the disadvantages of the ordinary bearing removing tools that the size is relatively large, the structure is complicated and carrying is inconvenient are overcome, and the differential type bearing removing device has a certain practical value.