Sealed downhole motor drive shaft universal joint assembly

Details Sealed downhole motor drive shaft universal joint assembly Sealed downhole motor drive shaft universal joint assembly

1990-08-10

1993-12-07

Stodola, Daniel P.

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

Coupling accommodates drive between members having...

Coupling transmits torque via radially spaced ball

464141, 464155, F16D 3221

Patent

active

052679055

ABSTRACT:
A Sealed Downhole Motor Drive Shaft Universal Joint Assembly consisting of a housing with an interior and an exterior surface. The interior has an end wall and side walls. The end wall has an elongate projection with a concave terminus. The side walls have a plurality of slots. A shaft is provided having an exterior surface and opposed ends. Each of the ends has a central cavity with a substantially concave end wall. The exterior surface of the drive shaft has a plurality of annularly spaced pockets adjacent each end. The pockets are in substantial alignment with the end wall of the central cavity. Each end of the drive shaft is telescopically received within one of the housings. A thrust ball is positioned between the concave terminus of the elongate projection of the housing and the concave end wall of the central cavity of the shaft thereby transmitting thrust loads between the housing and the shaft while permitting omni-directional relative movement of the housing and the shaft. A plurality of ball bearings are positioned in the pockets of the shaft and the slots of the housing thereby transmitting radial loads between the housing and the shaft while permitting omni-directional relative movement of the housing and the shaft. An end cap engages the external surface of the housing thereby preventing the separation of the shaft and the housing. Seals are disposed between the end cap and the housing to prevent the entry of drilling fluids into the housing.

REFERENCES:
patent: 2140295 (1988-12-01), Mallard
patent: 2968936 (1961-01-01), Croset
patent: 3153920 (1964-10-01), Ireland
patent: 4772246 (1988-09-01), Wenzel
patent: 5000723 (1991-03-01), Livingstone

Affiliated with

Also associated with

Rating

Sealed downhole motor drive shaft universal joint assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sealed downhole motor drive shaft universal joint assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sealed downhole motor drive shaft universal joint assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2012684