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Elliptically interfacing gearbox

A gearbox and ellipse technology, applied in the gearbox field, can solve the problems of mechanism disengagement and low efficiency.

Active Publication Date: 2017-08-08
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practice, however, an efficient and effective wobble plate drive system has proven elusive, as the forces involved often result in one or more of the following: mechanism disengagement, unacceptable vibration levels, or less efficient

Method used

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  • Elliptically interfacing gearbox
  • Elliptically interfacing gearbox
  • Elliptically interfacing gearbox

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0049] This example describes an illustrative gearbox system, see figure 1 .

[0050] figure 1 is a schematic cross-sectional view of a transmission system or gearbox, generally indicated at 10 . The transmission system 10 may include an input plate 12 , a wobble plate 14 , a stator gear 16 and an output plate 18 .

[0051] Input plate 12 may be coupled to input shaft 20 and may be configured to rotate about axis of rotation A1 . The input plate 12 is rotatable about the axis of rotation A1 in response to torque applied to the input plate by, for example, the input shaft 20 . The input plate may have a plurality of input teeth 22 arranged on an annular input surface 24 of the input plate.

[0052] The pivot plate 14 can have a pivot axis A2 which is arranged at a non-zero angle Q1 relative to the axis of rotation A1 . exist figure 1 , the angle Q1 may be exaggerated. The pivot plate 14 may have a rear face 26 and a plurality of face teeth 28 arranged on the rear face. ...

example 2

[0064] This example describes an illustrative gearbox system, see figure 2 .

[0065] figure 2 is a schematic cross-sectional view of a gearbox system, generally indicated at 100 . The gearbox system 100 may include a first gearbox system replicating Example 1 (indicated at 10) and a second gearbox system replicating Example 1 (indicated at 10'). Quoted reference numbers will be used to refer to components of the second transmission system 10' and unquoted reference numbers will be used to refer to components of the first transmission system 10. Gearbox 10 and gearbox 10' may be connected in series.

[0066] The transmission system 100 may have the output plate 18 of the transmission 10 coupled to the input plate 12' of the transmission 10'. Output plate 18 may be coupled to input plate 12' by coupling output shaft 38 to input shaft 20' such that output plate 18, output shaft 38, input shaft 20' and input plate 12' act as a single rigid unit. The transmission ratio...

example 3

[0068] This example describes an illustrative gearbox system, see image 3 .

[0069] image 3 is a schematic cross-sectional view of a transmission system, indicated generally at 200 . The transmission system 200 may be similar in concept to the transmission system 100 described in Example 2. However, instead of connecting the output plate 18 to the input plate 12' via the output shaft 38 and the input shaft 20' as in Example 2, the transmission system 200 can dispense with the output shaft, the second input shaft and even the input plate, and have the same The output plate 18 directly engages the swing plate 14'.

[0070] The transmission system 200 may have an input plate 12 that engages with and drives rotation of the wobble plate 14 . The wobble plate 14 is engageable with the stator 16 and nutates about the stator 16 as it rotates. The wobble plate 14 is engageable with the output plate 18 and drives rotation of the output plate 18 as the wobble plate 14 nutates abo...

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Abstract

The invention relates to an elliptically interfacing gearbox. The elliptically interfacing gearbox system may include an input plate having a rotation axis and a plurality of input teeth. The gearbox system may include a wobble plate having a wobble axis disposed at a non-zero angle relative to the rotation axis, a rear face, and a plurality of face teeth disposed on the rear face. The wobble plate may further include a first plurality of wobble teeth disposed in a first plane perpendicular to the wobble axis and a second plurality of wobble teeth disposed in a second plane perpendicular to the wobble axis. The second plane may be spaced from the first plane along the wobble axis. The gearbox system may include a stator gear having a plurality of stator teeth and an output plate having an output axis substantially aligned with the rotation axis and a plurality of output teeth. The plurality of input teeth may be configured to engage with the plurality of face teeth, the first plurality of wobble teeth may be configured to engage with the plurality of stator teeth, and the second plurality of wobble teeth may be configured to engage with the plurality of output teeth as the wobble plate nutates around the stator gear.

Description

technical field [0001] The present disclosure generally relates to gearboxes. More specifically, embodiments of the present disclosure relate to an elliptical butt joint gearbox including a wobble plate. Background technique [0002] A gearbox can be used to increase torque while reducing the rotational speed of the shaft. For example, the output shaft can rotate at a slower speed than the input shaft. This reduction can be achieved by mating two or more gears with different numbers of gear teeth and can provide a mechanical advantage. [0003] There are many ways to arrange the gears so that a single rotation of the first gear will cause the second gear to rotate more or less than once in the same amount of time. The gear ratio is the ratio between the rotations of these two. Where the second gear rotates less than the first gear, the gear combination may be considered to provide a gear reduction. In certain applications, it is desirable to have a gearbox with a relati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/023
CPCF16H57/023F16H55/08F16H1/321F16H1/32
Inventor R·J·阿特穆尔W·P·萨金特
Owner THE BOEING CO
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