Drill bit direct drive for deep well drilling tools

Details Drill bit direct drive for deep well drilling tools Drill bit direct drive for deep well drilling tools

1988-03-24

1989-08-08

Massie, Jerome W.

Boring or penetrating the earth

With below-ground tool drive prime mover

Fluid rotary type

175320, 384223, 415903, E21B 402, F16C 2708

Patent

active

048544019

ABSTRACT:
A direct drive for well drilling tools is established which includes a friction bearing with a trace ring and a bearing ring. The bearing ring has a number of bearing segments distributed around its periphery. These bearing segments are supported so that they can be tilted and shifted axially. Each bearing segment includes a support part mounted in a bore of the bearing ring and a compression spring rod arranged in the bore of the bearing ring to provide tilting and axial shifting of the segment against a spring force.

REFERENCES:
patent: 4629013 (1986-12-01), Kruger et al.

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