Low-profile, rotating-shaft transmission device, and associated method

Patent metadata

Field	Value
Publication number	US-10047827-B2
Application number	US-201615055294-A
Country	US
Kind code	B2
Filing date	Feb 26, 2016
Priority date	Feb 26, 2016
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

A transmission device, comprising an offset gearbox assembly coupling rotatable input and output shafts extending in respective input and output axial directions. An output gear is mounted in the offset gearbox assembly and is rotatable in a drive direction about an output gear axis to rotate the output shaft coupled therewith. An idler gear coupled to the output gear is rotatable about an idler gear axis in association with the output gear. An input gear assembly is coupled to the idler gear, is rotatable about an input gear axis in association with the idler gear, and is coupled to the input shaft such that rotation of the input shaft causes rotation of the output gear in the drive direction. The input gear assembly has the input shaft coupled therewith such that the input axial direction is nonparallel to the output axial direction. An associated method is also provided.

First claim

That which is claimed:

1. A low-profile, rotating-shaft transmission device, comprising:
an offset gearbox assembly including a gearbox housing and being configured to couple rotatable input and output shafts, the output shaft extending in an output axial direction and the input shaft extending in an input axial direction;
an output gear mounted in the gearbox housing and coupled to the output shaft so as to be rotatable in a drive direction about an output gear axis to rotate the output shaft;
an idler gear mounted in the gearbox housing and coupled to the output gear so as to be rotatable about an idler gear axis in association with the output gear; and
an input gear assembly including an input spur gear having teeth extending parallel to the input gear axis and coupled to the idler gear, and an input bevel gear directly coupled to the input spur gear and rotatable in conjunction therewith about an input gear axis in association with the idler gear, the input gear assembly being arranged such that the input spur gear and the input bevel gear directly coupled thereto are disposed within the gearbox housing, wherein the input bevel gear is configured to engage an input shaft bevel gear coupled to the input shaft extending into the gearbox housing such that rotation of the input shaft causes rotation of the output gear in the drive direction via the input gear assembly and the idler gear, and wherein the input gear assembly has the input shaft coupled therewith via the input bevel gear and the input shaft bevel gear such that the input axial direction of the input shaft is nonparallel to the output axial direction of the output shaft.

2. The device of claim 1 , wherein the output gear is an output spur gear having teeth extending parallel to the output gear axis.

3. The device of claim 1 , wherein the idler gear is an idler spur gear having teeth extending parallel to the idler gear axis.

4. The device of claim 1 , wherein the input gear assembly comprises an input beveloid gear coupled to the input shaft extending in the input axial direction.

5. The device of claim 1 , wherein the output gear is an output beveloid gear, the idler gear is an idler beveloid gear, and the input gear is an input beveloid gear coupled to the input shaft extending in the input axial direction.

6. The device of claim 1 , wherein the output shaft is coupled to the output gear such that the output axial direction is coincident with the output gear axis.

7. The device of claim 1 , wherein the output gear is coupled to the idler gear such that the output gear axis is parallel to the idler gear axis.

Assignees

• Boeing Co

Inventors

• Bae Kwan-Ho
• Parcher Kenneth L
• Murphy Robert M

Classifications

• F16H1/20

  involving more than two intermeshing members · CPC title

• F16H1/203 Primary

  with non-parallel axes (F16H1/22 takes precedence) · CPC title

• B64C13/34

  using toothed gearing · CPC title

• F16H1/222 Primary

  with non-parallel axes · CPC title

• F16H55/17

  Toothed wheels (worm wheels F16H55/22; chain wheels F16H55/30) · CPC title