Load rating optimized bevel gear toothing

US9145964B2 · kind B2 · utility

Assignees

• SCHOTTEL GMBH · DE
• Technische Universitaet Dresden · DE

Inventors

• Michael Potts · Colorado Springs, US
• Berthold Schlecht · Tankenhagen, DE
• Michael Senf · Radeberg, DE
• Steffen Schaefer · Munich, DE
• Birgit Hutschenreiter · Radeberg, DE

Key dates

• Filing date: May 27, 2011
• Grant date: Sep 29, 2015
• Expiry date: Nov 3, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T409/103975
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a bevel gear wheel (1) of a bevel gear unit, each tooth (2) of which comprises a load flank (3) and a non-working flank (4), wherein the teeth (2) have a helical or spiral tooth trace, in particular a curved tooth longitudinal line, and the teeth (2), in particular the upper meshing region of the teeth, have an octoid tooth shape or a spherical involute tooth shape, and the teeth have an excess material quantity (11) on the load flanks (4) in order to reinforce the load flanks (4), in particular such that the axis (9) that runs through the tooth tip-bisecting point A1 of the tooth tip transverse line (23) and through the midpoint of the gear wheel exhibits asymmetry of the teeth (2). The invention further relates to a method for producing a bevel gear wheel (1) according to one of the preceding claims, in which the tooth geometry is produced by a four-axis or multi-axis method, in particular a five-axis method.