Mobile drilling rig having a retractable guiding mount or mast

Details Mobile drilling rig having a retractable guiding mount or mast Mobile drilling rig having a retractable guiding mount or mast

1980-07-31

1983-01-18

Machado, Reinaldo P.

Static structures (e.g., buildings)

Mechanism operated relatively movable shaft assembly

Fluid pressure actuated

52116, 173 28, E21C 1102

Patent

active

043686028

ABSTRACT:
The mobile drilling machine includes a full track or wheeled undercarriage, a drilling mast provided with first guiding tracks extending in the longitudinal direction of the mast for guiding a rotary turntable for drilling pipes and with second guiding tracks, a slider movable on the second guiding tracks, a short supporting arm hinged between the undercarriage and a lower part of the mast, a longer supporting arm hinged at a different point on the undercarriage and connected by a universal joint to the slider and a self-locking driving mechanism provided on the slider to engage a tooth rack or chain mounted on the slider to adjust the inclination of the mast when actuated.

REFERENCES:
patent: 1531982 (1925-03-01), Sago
patent: 2903949 (1959-09-01), Simmonds
patent: 3205627 (1965-09-01), Gyongyosi
patent: 3550693 (1970-12-01), Bermingham
patent: 3919816 (1975-11-01), Ranft
patent: 4088289 (1978-05-01), Wood
patent: 4102094 (1978-07-01), MacKinnon

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