Tunnelling machine

FIELD: mining.

SUBSTANCE: tunnelling machine includes a frame with caterpillar trucks, a tray, an actuating element with a telescope, a conveyor, a buffer device, and a control panel, which are fixed on it. With that, the machine frame is provided with a telescopic pushing device with a power cylinder and a buffer with a support cylinder and brackets for fixation of support beams with holes for anchor bolts and an installation place of anchor posts into the mine working roof. Extension value of an extensible part of the pushing device is divisible by the value of telescope of the actuating element and mine working support pitch. The control panel of the telescopic pushing device is combined with the machine control panel and interconnected with the machine operation. Besides, the machine buffer devices can be equipped with a telescopic part and combined along the machine frame axis in the pusher housing with an axial partition wall. The telescopic pushing device can be made in the form of telescopic cylinders using support beams with holes for anchoring to mine working ground, thus compensating the divergence of planes in support places of the machine caterpillar trucks and its support beams to the mine working ground.

EFFECT: enlarging scope of application of tunnelling machines with caterpillar movement as to inclination angles of the mine working; improving operating reliability of the machine and its mobility and compactness.

9 cl, 4 dwg

 

The invention relates to drilling machines for mining excavation. It can be used in the coal industry.

Known continuous miner containing a frame attached to it by the Executive body with a telescope and a turning device, a conveyor loading device (tray), caterpillar trucks, buffers, with the support cylinders at the rear of the harvester, and a control unit connected to the remote control operator of the combine harvester [1].

The disadvantage of this harvester is that its scope on the angles of the openings is limited to 10 and buffer performs the function of stability combine with him in the breaking of rock mass.

Also known continuous miner, which contains the trailer safety device drum-cable version with securing the drum to the drive stars caterpillar trucks, the width of the harvester increases from 1600 mm to 2230 mm, depending on the direction of the inclined holding production end of the rope is attached anchor bolts front or rear drum; pulls ahead; behind - holds, and the buffer with the supporting cylinders ensure the sustainability of the harvester in its work on the breaking of rock masses [2].

This continuous miner is selected as a prototype of the proposed solution.

The first disadvantage of this harvester is used as a traction and safety authority rope, which is the staff that are unsafe for its cliff-impulse.

The second drawback is that increasing the width of the harvester, which leads to transport of the harvester for mining to dismantle the trailer safety device, and then to mount.

The third disadvantage is that not ensured constant synchronicity move crawler with a rope-drum thrust that creates additional dynamic loads, shocks and reduces the reliability of the harvester.

The fourth disadvantage is that buffer with the supporting cylinders are purely for stability combine with him in the breaking of rock mass.

The fifth disadvantage is that there is great complexity in the maintenance of traction and safety devices because of the many different operations coiling, uncoiling ropes, setting them up and moving.

The technical result of the invention is to increase the scope of roadheaders with caterpillar tracks, shifting the angles of the production, as well as to improve the reliability of the Shearer and his mobile is STI and compactness.

This technical result is achieved by the processor for carrying out excavations with variable angle, containing a frame mounted on it tracked the cart, tray, Executive body with the telescope, the pipeline buffer devices, remote control, according to the invention, the frame of the harvester introduced the telescopic pushing device with the power cylinder and the buffer with the supporting cylinder.

Telescopic pushing device with the power cylinder is placed in the cavity of the frame on its axis. Buffer supplied with brackets for mounting expanders with holes for anchor bolts. The value of adjustement retractable part of the pushing device is a multiple of the largest telescope of the Executive body and the step of mounting the excavation.

Remote control telescopic pushing device is combined with a remote control for a harvester and interlocked with the operation of the harvester. It is possible that the buffer device of the harvester (they are pushing device is provided with telescopic part, combined also along the axis of the frame of the harvester in the case of the pusher with the axial wall, while the buffer device alternately rely on soil excavation through every step of fastening or value of sequential removable strip in the mine workings.

Also it is possible to equip existing buffet the explosive device, located behind the target with a crawler trucks, lifters, which in places of their installation extends the frame of the harvester on the value of adjustement, a multiple of the largest telescope of the Executive body of the combine.

It is also possible execution of the pusher in the form of a telescopic cylinder, the sliding part with the use of support beams compensates the discrepancy between planes in places supports caterpillar trucks combine and support beams to soil excavation.

It is also possible as the strut to use permanently fixed spacer cylinders with the possibility of spreading to the roof of the excavation with spacer beams as when pushing and holding the harvester.

1 shows a General view of the harvester when carrying out excavation with the use of the pusher - side view. Figure 2 - the same, top view. Figure 3 shows the telescopic pushing device. Figure 4 shows a dual push-stepping device.

Continuous miner is (figure 1, figure 2) from the frame 1, caterpillar trucks 2, tray 3, the Executive body 4 with the telescope 5, the conveyor 6, the buffer device 7 and the control unit 8. The frame is made along the axis of the harvester shaped in the cavity where the telescopic pushing device 9 (the pusher) with the power cylinder 10 is placed on an axis that is katele with razdvinet, a multiple step mounting workings of the telescope as the Executive body. Retractable telescoping portion of the pusher 11 (hereinafter the telescope is provided with a buffer device 12 with a support cylinder 13 and brackets for fastening the support beams 14.

All actuators connected to the control unit. The housing 15 of the pusher (2, 3) is: from the remote end cover 16 with the lugs 17 for fastening the head of the rod 18 of the cylinder 10 and the mounting box 19; from the open head portion with a flange 20, the fastening elements to the frame of the harvester.

The telescope in the head part of the pusher is provided with a pad 21 is placed on the lugs 22 for mounting the power cylinder, brackets 23, 24 for installation of a buffer device with a support cylinder.

The brackets 14 with end parts provided with through holes for mounting the supporting beams 25 (in the drawing shown conventionally) with anchor holes outside the width of the conveyor 6 for convenience anchorage in the soil production or installation of the strut as portable and permanently affixed in the form of cylinders. There is also the option (figure 4), in which the buffer device (they are pushing device is provided with a separate telescopic part 26, 28, combined also along the axis of the frame of the harvester in the case of the pusher with the axial wall 27 or isolated in space is their initial installation in the target caterpillar trucks, what frame of the harvester is lengthened by the amount of the placement of the telescopic part of the buffer device, a multiple of the size of the telescope working body.

There is a variant of the cylindrical plunger, when using support beams with holes for anchorage in the soil production, compensating possible variations of planes in places supports harvester crawler trucks and beams with soil excavation.

Continuous miner works in the following way. When the need for excavation of the tunnel harvester crawler mechanism of movement outside of its technical specifications for tilt angles (typically 10) include a plunger control processor.

The initial position of the pusher: the telescope is reduced (retracted), the buffer unit 12 is raised (in transport position). With remote control 8 control cylinder 13 buffer unit 12 pumps into the soil excavation, so that part of the weight of the harvester was redistributed to the buffer device.

The telescopic part of the Executive body 4 push in the chest slaughter when the Executive body, zarabotka on the magnitude of the removable strip, all of the buffer device 7, 12 rasperry. At the end of the notches telescope Executive body is reduced to its original position. Since p is the LTE control, after reduction of the telescope Executive body is lifted from the soil formulation buffer devices combine 7 and the simultaneous inclusion of crawler undercarriages 2 and the power cylinder 10 of the plunger 9 is moved harvester to contact the Executive body with the face in the previously excavated telescope Ironman notch chassis and push the part off (caterpillars and cylinder), the buffer device of the harvester 7 respirate and begins processing slaughter on vtyanuta telescope Executive body to a depth of removable strips (usually 0.5 m).

At the end of processing of the face Executive body placed in its original position along the axis of the harvester, include telescope Executive body, zarabotka to a depth of another removable strip, the telescope reduce, remove from spreading out of the buffer device includes crawler and the power cylinder, move the harvester to contact with the bottom, pumps buffer 7, retract the sliding part (telescope) 11 to its original position, hold apart the buffer 12 into the soil excavation. When the supports of all the buffer device begins processing the next strip of bottom of excavation. After processing is complete, the Executive body is taken out of his telescope is reduced.

Begin the operation for mounting the excavation, according to the passport of securing compliance with the step of fastening (usually from 0.5 to 1.0 m), the ri all buffer devices combine rasperry, are active backwater.

With weak soil development, when the normal thrust of the pusher is not effective to the brackets 14 of the buffer device 12 are mounted the supporting beams 25, through holes are drilled wells and installed anchor bolts, rods or spacer used cylinders in the roof.

After mounting the excavation ahead of the combine process is repeated by performing the above operations for the next step of fastening.

When using dual pusher axis of the frame of the harvester part of the extension of the follower (buffer) alternately draw and move, while ensuring constant contact buffer devices with soil develop walking method.

LITERATURE

1. Equipment for treatment and preparatory works. Directory Minugleprom the USSR. M. 1986, s-202.

2. Equipment for treatment and preparatory works. Directory Minugleprom the USSR. M. 1986, s.

1. Continuous miner for mining excavation with variable angle, containing a frame mounted on it tracked the cart, tray, Executive body with the telescope, the pipeline buffer devices, remote control, characterized in that the frame of the harvester introduced the telescopic pushing device with the power cylinder and the buffer with the supporting cylinder.

2. Comb the more detailed according to claim 1, characterized in that the telescopic pushing device with the power cylinder is placed in the cavity of the frame on its axis.

3. Harvester according to claim 1, characterized in that the sliding part of the telescopic pushing device is provided with a buffer device with a support cylinder and brackets for mounting the supporting beams with holes for anchor bolts and the installation location of the strut in the roof of the excavation.

4. Harvester according to claim 1, characterized in that the magnitude of adjustement retractable part of the pushing device is a multiple of the largest telescope of the Executive body and the step of mounting the excavation.

5. Harvester according to claim 1, characterized in that the remote control telescopic pushing device is combined with a remote control for a harvester and interlocked with the operation of the harvester.

6. Harvester according to claim 1, wherein the buffer device of the harvester (they are pushing device is provided with telescopic part, aligned with the axis of the frame of the harvester in the case of the pusher with the axial wall, while the buffer device alternately rely on soil excavation through every step of fastening or value of sequential removable strip at the bottom with the movement of the harvester.

7. Harvester according to claim 1, characterized in that the existing buffer device equipped with plungers in alignment with caterpillar trucks, which in places is x installation frame of the harvester is lengthened by the amount of adjustement, times the value of the ledge, take another strip and fold the largest telescope of the Executive body.

8. Harvester according to claim 1, characterized in that the telescopic pushing device made in the form of telescopic cylinders, the sliding part with the use of support beams compensates the discrepancy between planes in places supports caterpillar trucks combine and its support beams and the soil excavation.

9. Harvester according to claim 1 or 3, characterized in that the strut can be used permanently fixed spacer cylinders, with the possibility of spreading to the roof of the excavation with spreader beams, as when pushing and holding the harvester.



 

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9 cl, 4 dwg

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