Harmonic drive
AssigneeSchaeffler Technologies AG & Co. KG
InventorJochen Thielen
Life of this patent
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Abstract
A harmonic drive (1), including a wave generator (8), a flexible, externally toothed gear component (14), in particular in the form of a flex ring, which can be deformed by said wave generator, and at least one internally toothed gear component (4, 5) that meshes with the flexible, externally toothed gear component (14). The flexible, externally toothed gear component (14) has a non-circular basic shape in relation to its mechanically non-loaded state.
Claims16
A harmonic drive, comprising
- a wave generator,
- a flexible, externally toothed gear component that is deformable by the wave generator,
- at least one internally toothed gear component engaging the flexible, externally toothed gear component, and
- in an unstressed state, the flexible, externally toothed gear component comprises a convex basic shape.
A method for operating a harmonic drive comprising a wave generator, a flexible, externally toothed gear component, that by the wave generator, as well as at least one internally toothed gear component that engages engaging the flexible, externally toothed gear component, with the flexible, externally toothed gear component having an out-of-round basic form in a mechanically unstressed state, the method comprising the externally toothed gear component adjusting itself into a desired position in a period in which no relative adjustment shall occur via a spring energy (E) stored in said flexible, externally toothed gear component, and said flexible, externally toothed gear component applying an inherent holding torque that reduces a holding torque applied for driving the wave generator.
A harmonic drive, comprising
- a wave generator adapted to be connected to an adjustment shaft,
- a flexible, externally toothed gear component that is deformable by the wave generator, that in an unstressed state, comprises a convex basic shape,
- a first internally toothed gear component engaging the flexible, externally toothed gear component that is adapted to be connected to a drive shaft, and
- a second internally toothed gear component engaging the flexible, externally toothed gear component that is adapted to be connected to a driven shaft.
Dependencies are inferred from the claim text.