HYDRAULIC TORSION FATIGUE TESTING APPARATUS FOR RELIABLY TESTING A HYDRAULIC TORSION FATIGUE WITH RESPECT TO A MIDDLE-SIZED TEST AXLE OR A SMALL-SIZED TEST AXLE

摘要

PURPOSE: A hydraulic torsion fatigue testing apparatus is provided to reliably test a hydraulic torsion fatigue with respect to a middle-sized test axle or a small-sized test axle by applying rotation force to a hydraulic shaking motor and measuring angle displacement of a test axle using the rotation force. CONSTITUTION: A hydraulic torsion fatigue testing apparatus includes a bed, a supporting part(2), a hydraulic shaking motor(4), and an angle displacement sensor(4a). The supporting unit(2) includes a load cell torque sensor(5) and is installed on one side of an upper part of the bed. The supporting unit(2) has a coupling for fixing one side of a test axle to the bed. The hydraulic shaking motor(4) is installed at the other side of the upper part of the bed. The hydraulic shaking motor(4) has a coupling for fixing the other side of the test axle to the motor. The hydraulic shaking motor(4) applies a rotation force to the test axle. The angle displacement sensor is installed at one side of the hydraulic shaking motor(4) and measures an angle displacement of the test axle.