GEAR TESTING SAMPLES OF MATERIAL IN NUCLEAR REACTOR FOR TORSION Russian patent published in 1997 - IPC

FIELD: study of strength properties of materials under action of various external factors, radiation study of materials during tests in irradiation cell of nuclear reactor. SUBSTANCE: gear is fitted with calibrated torsion meter with two fixed values of load across specified interval of deformation. Torsion meter includes bushing with slit made in one end along arc, first hub mounted for movement on end of bushing by means of pin located in slit. It also has second hub made fast to other end of bushing, axially symmetric loaded restoring plates joined to hubs with their ends. One hub is connected to pickup of torque and the other one - to force transmitting shaft. In process of going to working mode there exist three fixed values of torques; zero load and two values of reference magnitudes of torques which makes it possible to execute periodic correction of signal from instrument indicating value of torque during the whole period of testure even reliability and functional efficiency of gear, increased authenticity of results of tests. 4 dwg