SU1484955A1 - Apparatus for forming ascending workings - Google Patents

Description

The invention relates to mining and is intended for the formation of rising round workings in terms of shape in hard rocks in the conditions of ore and coal mines. The goal is to increase the rate of formation of workings. Two parallel drill rigs are connected with fixed

on the spacer columns feeders. At the front ends of the rams, there are drummers 9 and 10, which are covered by clips 11 with eyelets 12, which are located on the inner surfaces of the holder 11 and are mounted on the strikers 9 and 10.

In the latter, the ends (X) 17 and 18 are installed at one end with the possibility of axial movement. The other ends X 17 and 18 are connected with drill bits 28 and 29. At the same time, X 17 and 18 have piles 20. In casing 11, a cutting ring is installed on burs 20. placed between the inner side wall of the yoke 11 and X 17 and 18 and kinematically connected with the latter. When the feeding mechanisms are turned on by cutting rings, pilot wells are drilled and an annular gap is formed with the next fixing of the drilled core. Further, drilling of pilot wells is resumed with simultaneous core drilling. 3 il.

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1484955

The invention relates to mining, and more specifically to a device for excavating rising workings, and is intended for the formation of rising workings round in terms of shape in hard rocks in ore and coal mines, as well as in the construction of rising workings, for example, ventilation, during the construction of tunnels.

The purpose of the invention is to increase the speed of drilling. .

FIG. 1 shows the device, a general view; in fig. 2 - the same, side view; in fig. 3 - the same plan view.

On the spacer columns 1 and 2 by means of clamps 3, rotational feeding mechanisms 4 and 5 are fixed with stacking stands 6 and 7 of hollow rods 8 with threaded ends. Staves are installed in the rotation-feeder cartridges with the possibility of rotation around their longitudinal axes and axial movement. At the front ends of the rams, the strikers 9 and 10 are installed, covered by the yoke 11 with the lugs 12, defining the diameter of the passable production. The yoke 11 covers both the impactors and the lower part 13 of the cutting ring, which is a metal ring 14 with a toothed rim 15 located inside it and the teeth of which are in contact with the teeth of the gears 16 mounted on the shanks 17 and 18 mounted in the impactors with the possibility of axial movement under the influence of shock pulses generated by the impactors. The yoke 11 shoulders 19 in the lugs 12 rests on the bodies of the strikers 9 and 10, and the cutting ring rests on the shoulders 20 of the shanks 17 and 18. The front edges of the cutting ring are fixed holders 21, in the slots of which are placed rock-breaking elements 22 in the form of shanks 23 with rock-breaking heads 24 in the form of truncated cones, facing a wide base in the direction of the face. The holders carry two heads and are evenly placed on the leading edge of the cutting ring. The number of holders can be changed. In holders with inclinations to the sides of their axis and reciprocal radial displacement, sockets for rock-breaking elements are made. This is done so that the outer row of elements handles the outer perimeter of the slot, and the inner row processes the inner perimeter of the slot.

On the front of the shanks 17 and 18 by means of sleeves 25 with thread 26 and dowels 27 are fixed with the possibility of longitudinal movement of drill bits 28 and 29 with rock-breaking blades, reinforced with carbide plates.

To allow rotational feeding mechanisms along the columns, the latter are equipped with 3 winches 30 fixed with clamps 31 and blocks 31 and ropes 32. Rotation feeding mechanisms are fixed together with a crossbar 33. Each rotational feeding mechanism is equipped with control consoles 34, which ensure the operation of the rotators in either manual control, or automatic.

In addition, the device contains the supply sleeves 35 and 36, swivels 37, drilled core 38, retaining posts 39, spacer 40 to hold the core, trays 41 and 42 for removal of sludge.

Pilot wells are designated by positions 43 and 44, axis of passable development by position 45, external contours of the slit by position 46, internal contours of the slit - by position 47.

The device works as follows.

On the lower horizon 48, spacer columns 1 and 2 are installed, on which, by means of clamps 3, rotational feeding mechanisms 4 and 5 are fastened, fastening their fixed parts with a cross member 33, which specifies the required distance between the axes of the mechanisms, which are located at equal distances from the axis 45 of the future ascending working out. Installation of rotary feeding mechanisms at the required height is carried out with the help of winches 30, blocks 31 and ropes 32 on each column, after which clamps 3 are fixed. Then, stacks 6 and 7 of hollow rods 8 with drummers 9 and 10 mounted on them are installed in the mechanism holders 11 and the shanks 17 and 18 with the shoulders 20. The cutting ring is mounted on the shoulders 20, engaging the teeth of the ring gear 15 and gears 16 and placing the cutting ring inside the sleeve 11 between its inner side wall and the shanks 17 and 18. The holder 11 with its eyelet 12 o along with crosshead 33, it ensures the axes of drilling rigs between themselves. Then on the shanks -17 and 18 install the drill bits 28 and 29, connect the sleeves 35 and 36 and the swivels 37 to rotary feeding mechanisms to the compressed air line. When turning on the rotational feeders from the consoles 34, simultaneous feeding of the staves 6 and 7 and the cutting ring to the bottom of the rising production is performed, drilling of the pilot wells 43 and 44 and formation of the annular gap by rock-breaking elements 22. After drilling, stop the drilling process, install the spacer 40 and fix it racks 39 for the subsequent retention of the last drilled core 38.

Then fix trays 41 and 42 and resume the process of drilling pilot wells with simultaneous drilling out of the core 38 with a cutting ring. For the period of drilling to the exit of the cutting ring on the upper horizon, the core remains in development, supported by supports in pillars 39 through spacer 40.

1484955

After the cutting ring reaches the upper horizon, the drill bits 28 and 29 are dismantled, the cutting ring and the holder 11 and the drill stands 6 and 7 are lowered by the rotary feeding mechanisms 4 and 5 to the lower 5 horizon 48, where the stands and then the rotational feeding mechanisms together with the columns; 1 and 2 dismantle and move them to a new drilling site. Then, with the help of a winch, they pull out the pillars 39, the core falls under the action of gravity on the soil of the mine, where it is disassembled by a winch until the upstream mine is completely emptied.

Claims (1)

Claim 15 A device for the formation of rising workings, including two parallel drill rigs connected to rotational-feeding mechanisms mounted on spacer columns, a cutting ring mounted in a cage with eyelets, percussion drills with drill bits, characterized in that it is equipped with shanks, each of which is installed at one end with the possibility of axial movement in the drummer, and the other is connected with the drill bit, while the shanks have shoulders on which cutting ring arranged between the inner side wall of the cage and the shank, the eyelet holder are arranged on the inner surface thereof and mounted on drums, and the cutting ring are kinematically connected with liners. FIG. / 1484955 Fig.Z