US 12,454,880 B1
Mechanical shaft stop in a rotating machine
Gerald Glen Goshorn, Tulsa, OK (US); Donn J. Brown, Tulsa, OK (US); and Ketankumar Kantilal Sheth, Tulsa, OK (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Apr. 26, 2024, as Appl. No. 18/647,529.
Int. Cl. E21B 43/12 (2006.01); F04D 29/043 (2006.01); F04D 29/64 (2006.01)
CPC E21B 43/128 (2013.01) [F04D 29/043 (2013.01); F04D 29/648 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rotating machine, comprising:
a tubular housing;
a drive shaft disposed at least partly inside the tubular housing;
a component disposed inside of the tubular housing that is coupled to the drive shaft and configured to do work as the drive shaft rotates; and
a shaft stop assembly coupled to the drive shaft comprising
a collet disposed around the drive shaft, wherein the collet defines a plurality of through bores,
a compressor flange disposed around the collet and around the drive shaft and engaging with the collet to compress the collet to form a friction fit with the drive shaft, wherein the compressor flange defines a plurality of through bores,
a compression stop disposed around the compressor flange and around the drive shaft, wherein a first axial end of the compression stop abuts an end of the collet and wherein the compression stop defines a plurality of female threaded bores, and
a plurality of bolts having male threads, wherein the plurality of bolts are threaded into the female threaded bores of the compression stop to compress the collet to form the friction fit with the drive shaft.