F - Mech Eng,Light,Heat,Weapons – 16 – C
Patent
F - Mech Eng,Light,Heat,Weapons
16
C
F16C 1/08 (2006.01) B23B 47/00 (2006.01) E21B 17/00 (2006.01) F16C 1/04 (2006.01) F16C 3/02 (2006.01) F16D 3/18 (2006.01) F16D 3/20 (2006.01)
Patent
CA 2695797
A method of fabricating a drive shaft for an earth drilling motor which includes providing a shaft having opposed ends. Gear profiles with teeth circumscribe each of the opposed ends. Teeth have an engaging face. End housings are provided for each of the opposed ends of the shaft and an interior bore is machined into each of the end housings. The interior bore receives one of the gear profiles at one of the opposed ends of the shaft, but won't accommodate rotation of the gear profiles. Radially spaced apertures are drilled through the end housings to provide drive key pockets with arcuate drive key engagement surfaces. Drive keys are inserted into the drive key pockets, with an arcuate surface of each drive key engaging the engagement surface of the end housings and the opposed surface of each drive key engaging the drive key engaging face of the teeth.
Wenzel Kenneth H.
Woodruff Nathan V.
LandOfFree
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