Modified traction motor drive with helical gears and gear indexing method therefor
US5220847A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 1992 |
| Grant date | Jun 22, 1993 |
| Priority date | — |
| Expiry date | Feb 24, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19684
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a drive with twin helical drive gears on an axle driven by a motor with pinions at either end wherein the moto housing and axle housing are axially located by a key in mating keyways, an offset key is used to obtain axial housing adjustment by the amount of the key offset. The pinions are mounted to the motor with their teeth substantially aligned and the gears are mounted to the axle with their teeth substantially aligned, and the housings are axially positioned by an offset key to compensate for errors in tooth alignment to assure that gear backlash is centralized on both ends of the motor when the rotor is substantially centered in its range of end play.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.