Herringbone planetary gear transmission device with constant meshing characteristics constructed tooth pair
US12313147B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 8, 2024 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | May 8, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2055/176
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Provided is a herringbone planetary gear transmission device with a constant meshing characteristics constructed tooth pair, which relates to the technical field of gear transmission. The transmission device includes a sun gear with a constructed tooth pair, a planetary gear with a constructed tooth pair and an internal gear with a constructed tooth pair based on conjugate curves. Normal tooth profiles of the gears with a constructed tooth pair in the present disclosure are all the same combined curve and can be machined by using the same cutter. A common normal at an inflection point or a tangent point of the curve passes through a pitch point of a meshing gear pair, and a sliding ratio of the meshing gear pair is adjusted according to an adjusted position of the inflection point or the tangent point. A contact ratio of the meshing gear pair is designed as an integer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.