SU1377394A1 - Device for joining expander to drilling string - Google Patents

Abstract

The invention relates to the mining industry and m. used in reamers for retracting excavation workings in reverse. The purpose of the invention is to reduce the time spent on installation and dismantling. In this telescopic support rod 1, an extension drive of its sections in the form of a hydraulic cylinder is integrated. Rod section 1, connected to the expansion

Description

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1377394

The tele (P) is made with a figured outer contour of the cross section and is installed in the central figured hole of the plate with the possibility of axial movement. The mechanism of connection with the rod 1 is made in the form of one another adjacent to each other and a lock for their rotation relative to one another. One of the lugs is attached to the P, and the other - to P1 Tang 1. Clamp

made in the form of a finger 6 placed in coaxial holes formed in the lugs. The hydraulic cylinder 4 extends the rod 1, aligns the lugs and connects it with the hinge 5. With the further movement of the rod 1 R rises and turns on the hinge 5 until the corresponding lugs P and the rod 1 match, Proupgans are connected. finger 6. At the same time, P is fixed on rod 1 by means of a hole in the plate 9, 2, p. f-ly, 3 silt

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The invention relates to the mining industry and can be used in the construction of reamers intended for the excavation of raised workings in reverse.

The purpose of the invention is to reduce the time spent on installation and dismantling.

FIG. 1 shows a device for connecting a reamer with a drilling stand prior to drilling a rising development, a general view; Fig 2 is the same after drilling; in fig. 3 is a section A-A in FIG. 1,

A device for connecting an expander with a drill rod includes a telescopic support rod 1 installed in auxiliary well 2, coaxially with an advanced well 3. The drive of the sections of the forest copy rod is made in the form of a hydraulic cylinder 4 embedded in the rod 1 not labeled) made in the form of two flat lugs (not labeled), one of which is attached to the expander, and the other to the upper section of the telescopic bar 1, the lugs are connected to each other sharn 5 rum allowing yuschim expander -povorachivats rod 1 relative to the plane of best borehole inclination. The coupling mechanism has a rotation lock pin, one relative to the other, made in the form of a finger 6 mounted in coaxial holes (not indicated) of both lugs. Stop mechanism

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This prevents the rotation of the telescopic rod 1 relative to the expander, made in the form of a key 7, having a central figured hole 3 in which the upper end of the telescopic rod 1, which has a response figure of the outer cross-sectional contour with a small gap, is missed. Through the trunnions 8, the key 7 is fixed on the base plate 9, which is attached by anchors 10 to the sole of the excavation. The central figured hole can be made directly in the base plate.

The backward dilator 11 has transport rollers 12, as well as rollers 13, roller cutters 14 and drive rod 15, which is threaded (not shown) connected to the drill stand 16, Rails 17 are laid on plate 9,

The device for connecting the spreader with the drilling rod is used as follows.

The drilling of an advanced well 3 from the upper horizon is carried out in any way. Then, in the lower horizon, the well 2 is drilled to a depth sufficient to place the rod 1, the well 2 of the coaxes with the forward well 3, because it is drilled from the same installation by the same machine (not shown). A foundation plate 9 is installed on the outsole near the well 2, in which the key 7 is installed on the pins 8, then through the key pro20

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the rod 1 is started up so that it fits in the bore 2. At that, the cylinder of the hydraulic cylinder 4 is fully retracted and the lugs are at the level of the rail heads 17. After that, through the holes in the plate 9 in the sole I, drill holes for the anchors 10

Then the expander 11 with the aid; and the rollers 12 along the rails 17 roll onto the wellhead 2, Vshvvig hydraulic cylinder 4 rod -1, combine the corresponding one another eye, the extender and rod 1 and connect them with a hinge 5. With further extension of the thrust 1 from well 2 the expander rises. In doing so, it rotates on the hinge 5 until the corresponding spreader lugs and the rods 1 coincide. These lugs are connected with a finger 6,

As a result of this, the expander 1 is fixed on the rod 1 so that the drive rod 15 is coaxial with the drill rod 16.

After this, the drill rod 16 is reported to be pulled away from the drilling machine installed on the upper horizon, and the expander 11 is axially moved towards the drill stand by means of a hydraulic cylinder 4. The extender fixed on the rod 1 is fixed against rotation with the key 7. Thus, the extender is screwed with drilling rig.

Then, continuing the extension of the rod 1 by the hydraulic cylinder 4, press the cutters 14 of the spreading head to the roof of the working and drill out the rising production. A one-sided pressing of the expander to the roof of the development (the bottom of a rising production) at the initial moment (when drilling) does not cause a significant bending of the drill rod, as the rod 1 in the well 2 perceives the bending moment of the drill rod.

After penetrating the rising development to the height of the expander, drilling is stopped and the expander 11 is removed from the rod 1. To do this, remove the hinge 5 and remove the finger 6 from the lugs. Using hydrodi

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The lindra 4 telescopic rod is lowered into the borehole 2. The plate 9 is removed from the anchors 10. The device is ready for transportation to a new place of use.

Claims (3)

1. A device for connecting an extender with a drilling rod, a B1 supporting telescopic bar, a coupling mechanism of the camshaft with a supporting telescopic bar, and a mechanism for stopping the rotation of the supporting telescopic bar, characterized in that, in order to reduce the time spent on montage, work, it is equipped with a drive of the telescopic rod sections, while the mechanism for locking the supporting telescopic rod from rotation is made in the form of a base plate with a central figured hole, and qi telescopic rod, coupled to the expander, is formed with a shaped outer contour of the cross section, and is installed in a central figure of the foundation plate hole with the possibility of axial movement, the mechanism connecting the expander with the supporting telescopic rod is made in the form of eyelets adjacent to each other, hinged together, one of which is attached to the expander, the other to the telescopic support bar, and the latch of rotation of the eyelets relative to each other. I 2. The device according to claim 1, wherein the drive of the extension of the telescopic bar sections is made in the form of a hydraulic cylinder integrated into the telescopic bar. 3.Z device on PP. 1 to 2, characterized in that the latch of turn of the lugs, one relative to the other, is made in the form of a finger placed in coaxial holes made in the lugs. Phi. 2 lit Phie. J