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

• US 10,641,341 B2
• Filed: 06/20/2017
• Issued: 05/05/2020
• Est. Priority Date: 07/28/2016
• Status: Active Grant

• Current Assignee: IMS Gear SE & Co. KGaA
• Original Assignee: IMS Gear SE & Co. KGaA
• Inventors: Stoppel, Eugen, Oberle, Stephan, Seidel, Manuel
• Primary Examiner(s): Binda, Greg
• Application Number:
  US15/628,177
• Publication Number:
  US 20180031044A1
• Time in Patent Office: 1,050 Days
• Field of Search: 74458, 4033596
• CPC Class Codes: F16D 1/06 for attachment of a member on a shaft or on a shaft-end attachment of marine propellers on shafts B63H23/34
• CPC Class Codes: F16D 1/064 non-disconnectable
• CPC Class Codes: F16D 2001/103 the torque is transmitted via splined connections
• CPC Class Codes: F16H 55/17 Toothed wheels worm wheels F16H55/22; chain wheels F16H55/30
• CPC Class Codes: F16H 57/0025 with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods
• CPC Class Codes: Y10T 403/10 Selectively engageable hub to shaft connection
• CPC Class Codes: Y10T 403/7035 Specific angle or shape of rib, key, groove, or shoulder
• CPC Class Codes: Y10T 74/19953 Worm and helical

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.

Claims

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.