The Study on the Wear Characteristics of Flank Lock Type Precision Locknut in the Dynamic Conditions

Abstract

This study investigated the wear characteristics and anti-loosening characteristics of flank lock type precision locknut in the dynamic percussion vibration test. The experiment was conducted by using horizontal realistic dynamic percussion vibration test machine. The objective is to simulate the loosening condition of the locknut which was assembled in ball screw and machine tool spindle. Through this study, the wear resistance and anti-loosening characteristics of the precision locknut under the dynamic test were investigated by closely observing the roughness, flatness and tooth angle, seat surface and surface morphology before and after the test. The test results were used to calculate axial force ratio and anti-loosening ratio to understand the wear properties and anti-loosening properties of precision locknut under the dynamic conditions.