Flexible meshing type gearing having three-dimensional, non-interactive wide-area intermeshing tooth profile
US6167783A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1999 |
| Grant date | Jan 2, 2001 |
| Priority date | — |
| Expiry date | Jul 27, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19972
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The meshing of the rigid internal gear and the cup-shaped flexible external gear of a flexible meshing type gear device is simulated with racks, similarity transformation is effected on the composite curve consisting of the envelope obtained by axially projecting the movement loci of the rack teeth relative to each other from the tooth trace opening portion to the tooth trace inner extremity in sections perpendicular to the axis and the movement locus in the vicinity of the tooth trace inner extremity, and the resulting curve is adopted as the basic addendum profile of the external teeth and the internal teeth. Next, the rack axial direction deviation from the rack-approximated tooth profile at the contact point in sections perpendicular to the axis that arises in actual meshing is resolved into that caused by the inclination angle of the tooth center line of the external tooth of the flexible external gear relative to the tooth space center line of the internal tooth of the rigid internal gear and that caused by shift of the movement locus of the tooth of the flexible external gear from the rack movement locus, and the basic addendum profile of the external gear and the internal g…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.