Gear assembly

Patent metadata

Field	Value
Publication number	US-9927018-B2
Application number	US-201615271617-A
Country	US
Kind code	B2
Filing date	Sep 21, 2016
Priority date	Oct 6, 2015
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

The invention relates to a gear assembly ( 12 ) comprising a fixed gear ( 13 ) having a first radial toothing ( 16 ) and an idler ( 14 ) having a second radial toothing ( 17 ), the first radial toothing ( 16 ) being disposed at least approximately at the same radial height as the second radial toothing ( 17 ), and the fixed gear ( 13 ) further comprises a first axial end face ( 18 ) and the idler ( 14 ) comprises a second axial end face ( 19 ), and the fixed gear ( 13 ) is connected to the idler ( 14 ) by means of at least one elastic connecting element ( 21 ), for which purpose the elastic connecting element ( 21 ) is connected on the one hand to the first axial end face ( 18 ) of the fixed gear ( 13 ) and on the other hand to the second axial end face ( 19 ) of the idler ( 14 ).

First claim

The invention claimed is:

1. Gear assembly comprising a fixed gear having a first radial toothing and
an idler having a second radial toothing,
the first radial toothing being disposed at the same radial height as the second radial toothing, and
the fixed gear further comprises a first axial end face and the idler comprises a second axial end face,
wherein the fixed gear is connected to the idler by at least one elastic connecting element,
wherein the elastic connecting element is connected to the fixed gear at the first axial end face and to the idler at the second axial end face, and
wherein the elastic connecting element is at least partially made from a rubber elastic material and vulcanized or connected by a bonded connection onto the first axial end face of the fixed gear and onto the second axial end face of the idler.

2. Gear assembly according to claim 1 , wherein the elastic connecting element is disposed exclusively between the first axial end face of the fixed gear and the second axial end face of the idler and is connected exclusively to these axial end faces.

3. Gear assembly according to claim 1 , wherein the first axial end face of the fixed gear is disposed in a recess of the fixed gear and/or the second axial end face of the idler is disposed in a recess of the idler.

4. Gear assembly according to claim 1 , wherein the idler is biased in the circumferential direction towards the fixed gear.

5. Gear assembly according to claim 1 , wherein the elastic connecting element has a cross-section that becomes wider in the direction towards the first axial end face of the fixed gear and/or in the direction towards the second axial end face of the idler.

6. Gear drive comprising a crankshaft having a first gear and a balance shaft having a second gear, and an idler gear is disposed between the first gear and the second gear which meshes with the first and the second gear, wherein the idler gear is a gear assembly according to claim 1 comprising a fixed gear and an idler.

7. Gear drive according to claim 6 , wherein the fixed gear is positioned exclusively against the second gear of the balance shaft and the idler is positioned exclusively against the first gear of the crankshaft.

Assignees

• Miba Sinter Austria Gmbh
• Metaldyne Int Deutschland Gmbh

Inventors

• Dumanski Christian
• Siessl Wolfgang
• Mueller Alexander
• Dickinger Karl
• Depp Juergen

Classifications

• F16H2057/0012

  for reducing drive line oscillations · CPC title

• F16H57/12

  Arrangements for adjusting or for taking-up backlash not provided for elsewhere · CPC title

• F16H55/18 Primary

  Special devices for taking up backlash {(for gears having orbital motion F16H1/2863)} · CPC title

• F16H55/14 Primary

  Construction providing resilience or vibration-damping (F16H55/06 takes precedence) · CPC title

• F16H1/22

  with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts · CPC title