Method and apparatus for determining quality of a gearing system

摘要

A method and an apparatus for determining the quality of a gearing system is described. The method includes the steps of setting a sequence of target angles of rotation of a first gear wheel, measuring for each of the target angles of rotation an output angle of rotation of a second gear wheel, and calculating a plurality of theoretical output angles of rotation. The method also includes obtaining angle of rotation differences between the plurality of output angles of rotation and the plurality of theoretical output angles of rotation, forming a sequence of cumulative values, and determining, based on the sequence, a first amplitude value, a second amplitude value or a third amplitude value.

主权项

1. A method for determining quality of a gearing system having at least two gear wheels comprising:
setting within a measuring interval a sequence of target angles of rotation of a first gear wheel; measuring for each of the target angles of rotation an output angle of rotation of a second gear wheel; calculating a plurality of theoretical output angles of rotation upon the basis of the plurality of target angles of rotation using at least one transmission ratio of the first gear wheel and the second gear wheel; obtaining angle of rotation differences between the plurality of output angles of rotation and the plurality of theoretical output angles of rotation; forming a sequence of cumulative values which are associated with the angle of rotation differences, a cumulative value, which is associated with a present angle of rotation difference, comprising a total of angle of rotation differences which precede the present angle of rotation difference within the measuring interval; determining, based on the sequence of cumulative values, at least one of:
a first amplitude value of a first frequency component which is produced by a rotation of the first gear wheel within the measuring interval;a second amplitude value of a second frequency component which is produced by a rotation of the second gear wheel within the measuring interval; anda third amplitude value of a third frequency component which is produced by a number of gear wheel tooth engagements between the gear wheel teeth of the first gear wheel and the second gear wheel within the measuring interval; wherein the at least one amplitude value, which is associated with the first, second or third frequency component, constitutes a quality measure of the gear wheel arrangement.