Transmission shaft joint design

Details Transmission shaft joint design Transmission shaft joint design

2011-01-25

2011-01-25

Binda, Greg (Department: 3679)

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Shafting

Nonmetalic shaft or component

C464S182000

Reexamination Certificate

active

07874925

ABSTRACT:
A fiber reinforced composite shaft bearing a metallic flanged end coupling attached to the outside diameter through a concentric cylindrical torsional joint is provided. The composite shaft is press fitted into a flanged metallic end coupling including a multiplicity of teeth running parallel to the tube axis which cut longitudinal channels into the outside diameter of the composite shaft wall during the press fit process. Pairs of inverted troughs adjacent to and running parallel to the cutting teeth in the serrated region allow space for the redistribution of the composite material and debris formed during the press fitting process. This combined action forms a mechanical interface capable of supporting torsional and axial stresses. A structural adhesive may be applied to the joint region to form a secondary joint. In this case the composite formed between the cutting debris and the adhesive fills the trough channels.

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