Connecting rod assembly for downhole drilling

Details Connecting rod assembly for downhole drilling Connecting rod assembly for downhole drilling

1989-08-29

1990-12-11

Stodola, Daniel P.

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

Having lubricating means

For coupling having torque transmitted via intermeshing teeth

464156, 464158, F16D 318

Patent

active

049766554

ABSTRACT:
A connecting rod assembly used in downhole drilling that has an articulated coupling secured to each end of a rigid connecting rod. This assembly connects via the articulated couplings, to axially misaligned shafts and transfers both rotational and axial forces between them. The rigidity of the connecting rod prevents it from flexing during this force transfer, thereby reducing transmission loss while increasing transmission capabilities. Each articulated coupling comprises lobed male and female members, spaced slightly apart from each other, that allow for the transfer of these forces between them. With such an arrangement, rotational and axially forces can be transferred to a drill or other bearing section from a rotating and gyrating downhole motor.

REFERENCES:
patent: 1286945 (1918-12-01), Coates
patent: 1860762 (1932-05-01), Wyrick
patent: 2780080 (1957-02-01), Cork
patent: 2845781 (1958-08-01), O'Brien
patent: 3357208 (1967-12-01), Chase
patent: 4472160 (1984-09-01), Wright

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