SU60685A1 - A device for installing spark plugs in a drilling rig - Google Patents

Description

 In the drilling of oil wells, in most cases, two types of pipes are used. About half of them are attributable to candles that are lowered into the lower part of the well, and about the same to those that are lowered into its upper part and are made up of second-grade pipes.

Tubes of the second grade are usually shorter than the tubes of the first grade and have different lengths, so the candles made of pipes of different grades are of different lengths, which usually causes great inconvenience when installing them in the rig for the fingers.

The present invention eliminates this difficulty by using a vertical movable cradle equipped with a candle holders: winches, talles, etc.

It is especially advisable to use winches, the handle of which, pivotally connected to the axle, can be folded back and provided with a stopper for coupling to the ratchet.

FIG. 1 shows the proposed device in the plan; in fig. 2 is a front view of it; in fig. 3 is a side view; in fig. 4 is a front view of a winch for tugging candles and for raising the cradle; in fig. 5 - vertical

a winch section along line 1 — in FIG. four.

The metal hanging cradle - (figs. 1 - 3) can be moved in guides, formed by parallel racks of the frame 2, rigidly attached with two clamps 21 to the rail of the iron tower and two brackets 22 to the floor of the tower.

The cradle / is provided with an umbrella 24. To protect the worker who is in it from precipitation. The sides of the cradle are covered with a protective tarpaulin 25 for the same purpose.

The cradle is lifted using the cable 3, thrown over the roller 4 fixed on the frame 2. One end of the cable 3 is attached to the cradle and the other end is wound on the winch drum 5.

The fingers 6, for which the upper ends of the plugs 7 are to be driven, can be rotated with the axles 8 and suspended at the desired height on the cables 9.

On the cradle 1, on both sides, it is mounted on a winch 10, on the drums of which are wound cables 19, ending with hooks 20 to grip the candles 7.

For planting the candles for the corresponding finger 6, depending on the kind of pipes from which the candles are made, the cradle / is installed

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winch 5 at the right height; The worker on it grabs the hook 20, which is turned out of the lock and the candle is lowered in place and the winch 10 moves it by the finger 6, after which it releases the winch ratchet 10. The released candle slides along the finger 6 to the place where it should be installed.

The device winches 5 and 10 can be made the same. Each winch consists of a bracket 13 and 3a fastened together in two parts (Figs. 4 and 5), in the holes of which, like in bearings, the drum 11 can rotate. On the drum hub there is a ratchet 12 rigidly fastened to it dog M, which is rotatably mounted on the trunnion 18, reinforced in the bracket 13.

Through the central opening of the drum 11, an axis 15 which is freely turning is passed, at the front end of which the hinge is fixed

by means of a pin 16, a handle 23f which can be folded towards the axis. The handle is provided with a stopper 17. In the case shown in FIG. 4 and 5 in position, the stopper 17 of the handle rests on the tooth of the ratchet 12, so that as the handle rotates it rotates the ratchet 12, and with it the drum // winches.

Subject invention

Claims (2)

1. A device for installing candles of drill pipes in a drilling rig, characterized in that it is made in the form of a cradle / which is movable in a vertical direction and equipped with means for supporting candles, for example, winches, talles, etc. (Fig: 1 ). 2. In the device according to claim 1, use a winch, the handle 14 of which is pivotally connected to the shaft 15 and provided with a stopper 17 for engaging it with the ratchet 12 during winch operation. FIG. one