| 摘要 |
<p>For the finishing of hardened crown wheels in which a crown wheel (11) to be worked meshes with a cylindrical honing pinion (13) whose geometry corresponds to that of a working pinion which must be able to mesh with the worked crown wheel, either the crown wheel or the honing pinion is driven so that it rotates, while the honing pinion or the crown wheel is in principle freely rotatable. The crown wheel and the honing pinion are moved to and fro relative to each other in the direction of the axis (15) of the honing pinion. The width of the honing pinion is greater than the length of the teeth (12) of the crown wheel, and the honing pinion is mounted so that it rotates on a slide (22) which is movable to and fro along a guide (23) in the axial direction of the honing pinion. The position of the axis of the honing pinion relative to the crown wheel is fixed. The tooth width of the teeth (16) of the honing pinion is such that there is play between the teeth of the honing pinion and the teeth of the crown wheel. The shaft of the honing pinion is braked by means of the braking device (25), so that during a specific direction of rotation of the crown wheel its teeth are worked at only one side. During the working process it is ensured that at least two teeth of the crown wheel are always meshing with the teeth of the honing pinion.</p> |
