RU2435923C1 - Rig - Google Patents

Abstract

FIELD: gas and oil production.

SUBSTANCE: rig consists of frame, of jack column with supports fixed on frame, of feeder with attached implements set on jack column and of hoist. Also, the jack column is made in form of a case with internal and external thread on its ends. An adjusting nut is screwed on external thread. A retractable telescope is installed inside the case; the telescope is fixed with a stop relative to the adjusting nut and the case. The jack column is secured on a shaft by means of a bracket; it can be transferred from a horizontal position into a vertical one by means of a rotation reducer actuated with muscular force of an operator.

EFFECT: transportation of rig along mine workings with low vaults; simplified operation for release of jack column in mine working.

3 dwg

Description

The invention relates to the mining industry, namely to drilling equipment, and may find application in the design of machine tools for drilling wells by impact-rotational method in underground conditions.

A well-known drilling machine [1], including a swivel mechanism, a winch for installing the machine on the drilling axis, the feed mechanism and the rotator. A significant drawback of this drilling rig is its inconvenient installation in the mine due to the fact that the installation and holding in the working position of the machine is carried out only by means of a swinging mechanism (at two points of the mine), which increases the risk of the rig becoming blocked during installation or while drilling.

The closest in technical essence and the achieved result is a drilling rig for impact-rotary drilling of wells in underground conditions [2], including a frame, a spacer column with supports fixed on it, a feeder with attachments and a winch mounted on it. Significant disadvantages of this drilling unit is the inconvenience of transportation due to the spacer column significantly protruding beyond its dimensions, as well as the high complexity of unfastening the spacer column in the mine.

The technical task of the invention is to eliminate these drawbacks by using a sliding spacer column with a smooth adjustment of its length in the design of the drilling rig, while the spacer column is mounted on the shaft with the possibility of moving it from a horizontal position to a vertical position.

The task is achieved by the fact that a spacer column is used in the drilling rig, which is made in the form of a housing with internal and external threads at its ends, an adjusting nut is screwed onto the external thread. A retractable telescope is installed inside the housing, which is fixed relative to the adjusting nut and the housing by a stopper. In this case, the spacer column is installed (in this case, using the bracket) on the shaft with the possibility of its transfer from a horizontal position to a vertical position by means of a rotation reducer driven by the muscular power of a person.

The specified set of features allows you to transport the drill rig through the mine workings with low arches and simplify the operation of unfastening the spacer column in the mine workings.

The essence of the technical solution is illustrated by an example of a specific design and drawings, where: Fig. 1 shows a drilling rig with a vertical arrangement of a spacer column (front view); figure 2 shows the spacer column; figure 3 shows the drilling rig in the working position.

The drilling rig (Fig. 1) includes a feeder 1 (Fig. 3) with attachments 17, mounted on a spacer column 2, which is installed by means of an arm 3 on a shaft 4. Shaft 4 is mounted on racks 5 of a frame 6 and equipped with a rotation reducer 7. Spacer column 2 (Figure 2) consists of a housing 8, on which there are internal and external threads. A screw 9 with a support 10 is screwed into the internal thread, and an adjusting nut 11 is screwed onto the external thread. A sliding telescope 12 with a support 13 is mounted inside the housing 8, which is fixed relative to the housing 8 and the adjusting nut 11 by the stop 14. The movement of the adjusting nut 11 along the thread of the housing 8 is limited by the latch 15. On the adjusting nut 11 there are brackets 16 for installing a crowbar (not shown )

Drilling wells by the machine in underground conditions is as follows. The machine is delivered to the mining and mounted in it. The drilling process begins with the installation of a drilling tool (a hammer and a crown) on the drilling machine and screwing them with the threads of the drill rod and rotator spindle.

To do this, the spacer column 2, mounted by means of an arm 3 on the shaft 4, which, in turn, is mounted on the racks 5 of the frame 6, is installed in a vertical (working) position by means of a rotation reducer 7. The telescope 12 is extended to the extremely possible position by means of muscular human force, limited by the arch of mining, and is fixed. By means of a crowbar and holes in the support 10, the latter is unscrewed by screw 9 to the extreme position, limited by the floor of the mine working to distribute the load. Next, using a crowbar threaded into the brackets 16 of the adjusting nut 11, the adjusting nut 11 is rotated relative to the housing 8. When the adjusting nut 11 is rotated, the latter carries out movement along the longitudinal axis of the spacer column 2, limited by the latch 15 or the distance to the arch of the mine, and since the telescope 12 is fixed by the stopper 14 relative to the adjusting nut 11, then it makes a movement in the longitudinal direction and abuts the support 13 against the arch of the mine working, thus, the final the release of the spacer column 2 in the mine, and, accordingly, and the drilling rig.

Next, the feeder 1 with attachments 17 is installed in the direction of drilling, i.e. mounted on the drilling axis at the desired angle.

After that, drilling is carried out according to the technology used for shock-rotary well drilling machines in underground conditions. Those. carry out drilling for the length of the drill rod, after which they build up the next rod and carry out further drilling.

Drill extension and drilling cycles to their length are performed until the design depth of the well is reached, after which drill rods are unscrewed and the drilling tool is removed from the well.

After the drilling process is completed, the spacer column 2 is reversed into the horizontal (transport) position and the drilling rig is moved along the mine to a new drilling location using a winch.

Using the proposed improvements in the design of the drilling rig allows it to be transported through mine workings with low arches and to simplify the operation of unfastening the spacer column in the mine workings.

Information sources

1. USSR author's certificate No. 825894, Е21С 1/10 of 01.20.1978

2. RF patent No. 2380509 from 08.25.2008.

Claims (1)

A drilling rig including a frame, an expansion column with supports, a feeder with attachments mounted on it and a winch, characterized in that the expansion column is made in the form of a housing on which an adjusting nut is installed, and a retractable telescope is installed in the housing with the possibility of its fixing relative to adjusting nut and housing, while the spacer column is mounted on the shaft with the possibility of its transfer from a horizontal position to a vertical position.

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