Patent · US Active

Zero backlash planetary gear train

US8535198B2 · kind B2 · utility

3Cited by
1References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 13, 2012
Grant dateSep 17, 2013
Priority date
Expiry dateAug 13, 2032

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/19623
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A zero backlash planetary gear train, comprising: a shell, a planetary gear set, and at least a sun gear set. Planetary gear set is disposed in said shell, and includes a planetary arm rack having output axis, such that planetary arm rack in said shell is provided with a plurality of double-layer planetary gears. The planetary gear set includes a first planetary gear and a second planetary gear. A buffer mechanism is provided between first planetary gear and second planetary gear. Said first planetary gear is engaged with at least an internal gear on an inner rim of shell, and second planetary gear is engaged with at least a sun gear set. Sun gear set is provided with a sun gear connected to a driving motor. Said zero backlash planetary gear train is capable of eliminating backlash between gears.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.