SU81624A1 - Rotary table for rotary drilling - Google Patents

Description

The subject of the invention is a rotary table for rotary drilling of wells.

The core detail of the proposed rotor table is a fixed bed in which the remaining units are mounted. The bed perceives and transfers to the shaft bars all the loads arising in the process of drilling and during lifting operations.

FIG. I and 2 are shown in two projections of the proposed rotary table.

The bed / partition is divided into three parts, representing a settling tank and oil baths for the rotary and driving parts of the table.

The rotary part comprises a table 2 with a through hole 3 for the passage of the drilling tool and the casing string, having an octahedral cutout under the liner 4 in the upper part.

On the lower cylindrical part of the table 2 is put on the gear rim 5 of the conical jib: 1.achp. On the secondary vag.d 7 boxes rKopocTcfi iadevSts 1pog | e | P1 b.

The rotary table rotates on the ball bearing 8, which takes up the load of the weight of the casing or drill string.

The upper ball bearing 9 is intended for sensing the vertically lifting table rotor forces and jolts coming from the squall.

The locking of the table while unscrewing the pipes is carried out by the hook 10.

The drive part of the rotary table consists of a primary shaft P, on which idle gears 12, 13 and gear 14 are mounted on bushings, freely movable along two spurs along the shaft.

The gears 12 and 13, in addition to the external gear, also have internal gearing for engaging the respective box speeds with the aid of the gear 14, which is also a gear box clutch. Shaft // mounted on spherical roller bearings.

On the console part of the prime

shaft mounted but on 1ionke cola

co /, iKi secondary shaft 7 --- gear 1P1 /) II 17. Secondary Bii.i setor, flax on spherical roller bearings.

The box speed control is realized by means of a gear wheel and a rail planted on a stationary roller mounted in the bed cover in bearings (shown in the drawing with the application lines).

For lubrication of gears, gearboxes of speeds are fitted with oil per bath. The conical pair of gears is lubricated with oil from the oil bath of the gearbox by collecting it through a special tube into the oil sump of the sprayed

oil and feed it to a conical pair before engagement.

The immobility of the rotor frame ensures complete safety: work while drilling wells.

Subject invention

A rotary table for drilling, well drilling, equipped with a gearbox, is also distinguished by the fact that, for the sake of safety, the table is located inside the fixed rotor base with the exception of the plane under the inserts.

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