Gear mechanism having helical toothing

摘要

A gear train with at least first and second spur gears (1, 2) which have a tooth width (b), mesh with one another and each have helical teeth (3, 4). The first spur gear (1) has a tooth profile with a crown circle diameter and the second spur gear (2) has a tooth profile with a root circle diameter. The first spur gear (1) has at least one projection (5) on the tooth profile that extends partially along the tooth width and beyond the crown circle diameter, and the at least one projection (5) has at least one contact face (5a) in the axial direction.

主权项

1. A gear train comprising:
at least first and second spur gears (1, 2) each having helical teeth (3, 4) meshing with one another, and each of the at least first and second spur gears (1, 2) having a tooth width (b), the first spur gear (1) having a tooth profile (3a) with a crown circle diameter (DK1), the second spur gear (2) having a tooth profile (4a) with a root circle diameter (DF2), and the first spur gear (1) having at least one projection (5) on the tooth profile (3a) extending partially along the tooth width beyond the crown circle diameter (DK1), and the at least one projection (5) having, in an axial direction, at least one contact face; wherein the at least one projection (5) mates with a corresponding ring groove (6) formed in the second spur gear (2), and the ring groove (6) has a groove bottom diameter (DN) which is smaller than the root circle diameter (DF2) to facilitate receiving the at least one projection (5) of the first spur gear (1) (5a).