Method for testing gear parts for the onset of surface deterioration, such as grooving and pitting, by subjecting the parts to cyclic testing over a torque range that includes the torque at which surface wear begins

摘要

Method for testing parts such as curved disks of a cycloid gear or a toothed gear wheel in a corresponding gear test stand, in which the torque is applied to the part and increased until a critical value is reached at which wear, abrasion or other damage occurs. During testing the torque applied is varied between minimum and maximum values, the range including the critical value at which surface deterioration occurs. Similarly other values such as pressure, rotational velocity, force can be varied to investigate their effect on the onset of surface deterioration. The invention also relates to an electric motor supplied by a rectifier for loading and driving the test arrangement and having gears suitable for meshing with the test item.