Apparatus and apparatus for testing fatigue and endurance

摘要

Problem that the temperature of the nut can be stably detected even after long periods of operation.Motor 11 andA ball screw 13 rotated by the driving of the motorThe ball screw 13 is engaged with the ball screwA nut 14 sliding on the ball screw 13A piston 18 coupled to the nut 14 andEquipped withThe rotational motion of the ball screw 13 is converted into reciprocation of the piston 18.An excitation machine 2 for applying a load to an objectA temperature detecting portion for detecting the temperature of the nut 14 in a non-contact mannerA control unit 30 for controlling the motor 11 based on a detection signal of the temperature detecting part, and.Diagram