环形零件淬火时,采用附图的起卸夹具,工作起来很方便,同时可以使操作同志远离高温炉进行操作。这种夹具是根据杠杆连动原理制造的。先把起重机挂钩挂在夹具上部环内,提起轴1,固定在轴上的下连接头7随即带动下横梁8,使3个直梁5向内缩拢,因而就可 Ring parts quenching, the use of the drawings of the lifting fixture, work is very convenient, while operating comrades can be away from the operation of high temperature furnace. This fixture is based on the principle of lever linkage made. First crane hook hanging in the upper clamp ring, lifting the shaft 1, fixed on the shaft of the lower connector 7 then led to the next beam 8, so that the three straight beam 5 inward contraction, which can be