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 20180031044A1
• Filed: 06/20/2017
• Published: 02/01/2018
• 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
• Granted Patent: US 10,641,341 B2
• Time in Patent Office: Days
• 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

The present disclosure relates to 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

.

2. The connection system according to claim 1,

wherein the connection helix angle (α

) and the tooth helix angle (β

) have the same sense of rotation.

3. 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.

4. The connection system according to claim 1,

wherein the first connecting section comprises protrusions corresponding to the depression or depressions.

5. The connection system according to claim 1,

wherein the gear wheel is made of a softer material than the component.

6. The connection system according to claim 1,

wherein the gear wheel comprises:

a toothed ring, in which the helical gearing is disposed, and

a connecting part, which comprises the first connecting section, and

wherein the toothed ring is made of a softer material than the connecting part.

7. The connection system according to claim 6,

wherein the component comprises a hub part, which comprises the second connecting section,

wherein the connecting part is disposed between the toothed ring and the hub part, and

wherein the toothed ring is made of a softer material than the connecting part, and the connecting part is made of a softer material than the hub part.

8. A device for transmitting a rotational movement, comprising:

a rotatable component, and

a gear wheel,

the gear wheel and the component being connected by way of a connection system according to claim 1.

9. An electrical steering device for a motor vehicle, comprising the device according to claim 8.

10. A connection system, comprising:

a gear wheel that comprises;

a toothed ring;

helical gearing disposed on the toothed ring, the helical gearing having a tooth helix angle (β

); and

a first connecting section;

wherein the toothed ring is made of a softer material than the connecting section; and

a rotatable component connected to the gear wheel, the rotatable component comprising;

a hub part;

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 toothed ring is made of a softer material than the second connecting section, and the second connecting section is made of a softer material than the hub part.

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