Connection system for connecting a component such as a shaft, hub, bushing or the like to a gear wheel, the gear wheel comprising helical gearing

Patent metadata

Field	Value
Publication number	US-10641341-B2
Application number	US-201715628177-A
Country	US
Kind code	B2
Filing date	Jun 20, 2017
Priority date	Jul 28, 2016
Publication date	May 5, 2020
Grant date	May 5, 2020

Abstract

A connection system for connecting a component to a gear wheel, wherein the gear wheel comprises helical gearing having a tooth helix angle and a first connecting section, and the component comprises a second connecting section by way of which the component can be connected or is connected to the first connecting section, wherein the component, in the second connecting section, comprises at least one depression or elevation that is operatively connected to the first connecting section when the component is connected to the first connecting section, wherein the depression has a connection helix angle, and the connection helix angle is defined as follows: 0°≤α≤β. The disclosure furthermore relates to a device for transmitting a rotational movement, comprising a rotatable component and a gear wheel, wherein the gear wheel and the component are connected by way of such a connection system.

First claim

The invention claimed is:

1. A connection system, comprising:
a gear wheel that comprises:
helical gearing having a tooth helix angle (β); and
a first connecting section; and

a rotatable component connected to the gear wheel, the rotatable component comprising:
a second connecting section connecting the component to the first connecting section, wherein the second connecting section comprises a depression or elevation that is operatively connected to the first connecting section when the component is connected to the first connecting section, wherein the depression or the elevation has a connection helix angle (α) defined as 0°<α≤β; and
wherein the connection helix angle (α) and the tooth helix angle (β) have the same sense of rotation.

2. The connection system according to claim 1 , wherein the rotatable component, in the second connecting section, comprises a plurality of depressions or elevations, and the helical gearing of the gear wheel comprises a same number of teeth.

3. The connection system according to claim 1 , wherein the first connecting section comprises protrusions corresponding to one or more depressions.

4. The connection system according to claim 1 , wherein the gear wheel is made of a gear wheel material and the rotatable component is made of a rotatable component material and the gear wheel material is relatively softer than the rotatable component material.

5. The connection system according to claim 1 ,
wherein the gear wheel comprises:
a toothed ring made of a toothed ring material and in which the helical gearing is disposed, and
a connecting part made of a connecting part material and which comprises the first connecting section, and
wherein the toothed ring material is softer than the connecting part material.

6. The connection system according to claim 5 ,
wherein the component comprises a hub part made of a hub part material and which comprises the second connecting section,
wherein the connecting part is disposed between the toothed ring and the hub part, and
wherein the connecting part material is softer than the hub part material.

7. A connection system, comprising:
a gear wheel that comprises:
a toothed ring with a helical gearing having a tooth helix angle (β);
a first connecting part that forms a first connecting section;
wherein the first connecting part is made of a first material;
wherein the toothed ring is made of a second material, wherein the first material is relatively softer than the second material; and

a rotatable component connected to the gear wheel, the rotatable component comprising:
a hub part made of a third material, wherein the second material is softer than the third material;
a second connecting section disposed between the toothed ring and the hub part, the second connecting section connecting the component to the first connecting section, wherein the second connecting section comprises a depression or elevation that is operatively connected to the first connecting section when the component is connected to the first connecting section, wherein the depression or the elevation has a connection helix angle (α) defined as 0°<α≤β; and
wherein the connection helix angle (α) and the tooth helix angle (β) have the same sense of rotation.

8. The connection system of claim 7 , wherein the rotatable component is selected from the group consisting of a shaft, hub, or bushing.

Assignees

• Ims Gear Se & Co Kgaa

Inventors

• Stoppel Eugen
• Oberle Stephan
• Seidel Manuel

Classifications

• Y10T403/7035

  Specific angle or shape of rib, key, groove, or shoulder · CPC title

• F16D1/0852 Primary

  with radial clamping between the mating surfaces of the hub and shaft (F16D1/0805 - F16D1/0817, F16D1/09 take precedence) · CPC title

• F16D1/06 Primary

  for attachment of a member on a shaft or on a shaft-end (attachment of marine propellers on shafts B63H23/34) · CPC title

• F16D1/101

  without axial retaining means rotating with the coupling · CPC title

• F16H57/0025

  with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods · CPC title