SCREW-TYPE REMOVER Russian patent published in 1998 - IPC

FIELD: repair, applicable in disassembly of interference-fitted parts. SUBSTANCE: a gripping assembly is installed in the cylindrical body with a stepped axial cavity. Guide holes are arranged on both sides of the stepped cavity. The cavity parts accommodate the auxiliary and working pistons making up a closed chamber filled with non- condensable liquid. Rods linked with the pistons move in the body guide holes. One of the rods connected to the auxiliary piston is made in the form of a striker. The auxiliary piston is spring- loaded towards the working piston. EFFECT: pulsating application of load to the part to be disassembled. 1 dwg