Divided tooth wheel

• US 8,621,951 B2
• Filed: 09/03/2009
• Issued: 01/07/2014
• Est. Priority Date: 10/04/2008
• Status: Active Grant

• Current Assignee: ThyssenKrupp Presta TecCenter AG (Thyssenkrupp AG)
• Original Assignee: ThyssenKrupp Presta TecCenter AG (Thyssenkrupp AG)
• Inventors: Meier, Alex
• Primary Examiner(s): FENSTERMACHER, DAVID MORGAN
• Application Number:
  US13/122,363
• Publication Number:
  US 20110174105A1
• Time in Patent Office: 1,587 Days
• Field of Search: 744/09, 744/40, 744/10, 744/11
• US Class Current: 74/409
• 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 1/116 the interengaging parts including a continuous or interrupted circumferential groove in the surface of one of the coupling parts circlips for retaining hubs on shafts F16B21/18
• CPC Class Codes: F16H 55/18 Special devices for taking up backlash for gears having orbital motion F16H1/2863
• CPC Class Codes: Y10T 29/49462 Gear making
• CPC Class Codes: Y10T 74/19623 Backlash take-up
• CPC Class Codes: Y10T 74/19633 Yieldability in gear trains
• CPC Class Codes: Y10T 74/19898 Backlash take-up
• CPC Class Codes: Y10T 74/1993 Segmental rim

Abstract

A divided toothed wheel having two toothed wheel halves which are tensioned in relation to each other. The first toothed wheel half includes a hollow cylindrical collar with a groove, to which the second toothed wheel half is secured in a form-fitting engagement by a securing element inserted into the groove. The divided tooth wheel takes up a minimum amount of space from the axial direction and has two halves which are permanently connected together. The second toothed wheel half has a radially extending recess and the securing element is designed as an elastically shapeable ring which is arranged in a receiving chamber defined by the groove and the recess and the two toothed wheel halves are permanently joined together.

Claims

1. A divided toothed wheel, comprising:

a first toothed wheel half; and

a second toothed wheel half, the first and second toothed wheel halves being braced against each other,

wherein the first toothed wheel half has a hollow cylindrical collar with a groove, to which collar the second toothed wheel half is attached in an axially positive locking manner by a fastening element inserted into the groove, wherein the second toothed wheel half has a radially extending recess, and the fastening element is formed as an elastically deformable spring ring connecting the two toothed wheel halves to each other in a non-releasable manner, wherein the recess in the second toothed wheel half is a groove disposed between the two side surfaces of the second toothed wheel half, wherein the elastically deformable spring ring is disposed in a receiving space that is defined by the grooves of the first and second toothed wheel halves, that is closed off from surroundings, and that is not externally accessible.

2. The toothed wheel as claimed in claim 1, wherein the elastically deformable spring ring is a wire flexing part.

3. A process for assembling a divided toothed wheel with a first toothed wheel half and a second toothed wheel half, the first and second toothed wheel halves being braced against each other, wherein the first toothed wheel half has a hollow cylindrical collar with a groove and the second toothed wheel half is pushed onto the collar, wherein the second toothed wheel half is attached in an axially positive locking manner to the collar by a fastening element that is inserted into the groove, wherein the second toothed wheel half has a radially extending groove between two side surfaces of the second toothed wheel half and overlapping with the groove of the first toothed wheel half when the toothed wheel is in the assembled condition, and before the second toothed wheel half is pushed onto the collar an elastically deformable spring ring is inserted into the groove, which spring ring is elastically deformed by the second toothed wheel part during this pushing movement in such a way that the second toothed wheel half can be pushed onto the collar until it reaches the joint position, wherein, upon the joint position being reached, the spring ring springs back into the groove of the second toothed wheel half to form the axially positive locking connection, wherein in the assembled condition the spring ring is disposed in a receiving space that is defined by the grooves of the first and second toothed wheel halves, that is closed off from surroundings, and that is not externally accessible.