EP3405648B1 - Bergbaumaschine und verfahren zum betreiben einer bergbaumaschine - Google Patents

Bergbaumaschine und verfahren zum betreiben einer bergbaumaschine Download PDF

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Publication number
EP3405648B1
EP3405648B1 EP17741735.9A EP17741735A EP3405648B1 EP 3405648 B1 EP3405648 B1 EP 3405648B1 EP 17741735 A EP17741735 A EP 17741735A EP 3405648 B1 EP3405648 B1 EP 3405648B1
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EP
European Patent Office
Prior art keywords
cutting head
mining machine
rock
machine according
cutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP17741735.9A
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English (en)
French (fr)
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EP3405648A4 (de
EP3405648A1 (de
Inventor
Gunnar Bergling
Emil OLOFSSON
Fredrik Saf
Sverker Hartwig
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Epiroc Rock Drills AB
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Epiroc Rock Drills AB
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Publication of EP3405648A4 publication Critical patent/EP3405648A4/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/24—Mineral freed by means not involving slitting by milling means acting on the full working face, i.e. the rotary axis of the tool carrier being substantially parallel to the working face
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/16—Machines slitting solely by one or more rotating saws, cutting discs, or wheels
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
    • E21D9/1013—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
    • E21D9/1013—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom
    • E21D9/102—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom by a longitudinally extending boom being pivotable about a vertical and a transverse axis

Definitions

  • the invention concerns a mining machine for driving tunnels, galleries or the like, said mining machine including: a rotational cutting head having a plurality of rock engaging cutting elements distributed on its periphery, a rotator for rotationally driving said cutting head, said cutting head having a rotation axis extending essentially vertically, when the mining machine is aligned on horizontal ground, a positioning arrangement arranged to position the cutting head between cuts, said positioning arrangement being arranged to swing the cutting head horizontally from a first side to a second side to reach first side and second side positions respectively, means for forcing the cutting head against rock to be worked so as to disintegrate the rock, means for transporting away released material.
  • the invention also concerns a method for operating such a mining machine.
  • Tunnels and galleries in mines are ineffective spaces to the extent that they normally only comprise transport paths between sites where valuable ore is extracted.
  • Production of tunnels and galleries is certainly time, labor and energy consuming and requires expensive equipment and is thereby expensive. For that reason it is problematic having bulky rigs requiring spacious tunnels for their transport since time, energy and resources are thus required to complete the required transport spaces. In particular, it is important that disintegrated rock is removed effectively.
  • a mining machine for driving tunnels, galleries or the like, in that the cutting head on an upper side is attached to a one-sided support unit such that the lower side of the cutting head is free from support means, that the mining machine includes a pressing unit arranged to press the cutting head linearly against rock to be worked, essentially in a longitudinal direction of the mining machine when aligned, and that the rotator is arranged to rotate the cutting head in a first rotational direction during a cut where the cutting head is in a first side position and that the rotator is arranged to rotate the cutting head in a second rotational direction in a cut where the cutting head is in a second side position so that disintegrated rock material is forced by the cutting head from the respective side to which the cutting head is swung to a more central part of an excavation site.
  • the distinguishing features brings along important advantages.
  • One major advantage is that the cutting head can be closed at its lower side making complicated seals between relatively movable part unnecessary. Seals on the upper side of the cutting head can be made easily accessible for inspection and for service without having to dismount the cutting head from the one-sided support unit.
  • the rotator motor, the bearings and other components positioned inside the cutting head are advantageously easily accessible for inspection and for service through a removable inspection cover positioned at the top side of the cutting head holder.
  • This feature allows using a more simple muck input feeder at the front of the machine.
  • the cutting head is advantageously formed as a rotating wheel having rock engaging and rock disintegrating elements distributed over its surface seen in a circumference direction as well as seen in an axial direction, in parallel with a rotation axis for the cutting head.
  • the cutting elements are also advantageously rotatable, at least part disc-shaped round elements that are brought to rotate and cut parallel grooves in the rock and thereby disintegrate the rock when the rotating cutting head is pressed with high force against the rock during a cut.
  • Said positioning arrangement is advantageously arranged to also swing the cutting head vertically up and down to reach upper and lower positions respectively.
  • the lower side of the cutting head is provided with a plurality of drive protrusions having guide surfaces arranged to drive the disintegrated rock material.
  • the drive protrusions hereby force the muck being below the cutting head radially outwards from the rotation axis of the cutting head towards its periphery at the same time as they force the muck towards the center of the machine front.
  • the muck is thereby imparted a combinatory movement out (from the rotation axis) - to the front center (of the mining machine), making it easy to collect by a muck transport input arrangement.
  • Said guide surfaces hereby suitably form an open, positive outward angle above 90° to a radius of the cutting head, which is a positive angle as seen in the prevailing rotational direction.
  • This angle is suitably between 110° and 160° and preferably between 125° and 145°.
  • At least a first selection of said drive protrusions are provided with guide surfaces arranged to be operative in the first rotational direction and at least a second selection of said drive protrusions is provided with guide surfaces arranged to be operative in the second rotational direction.
  • Selection means in practice a number of drive protrusions being smaller than the total number of drive protrusions.
  • all drive protrusions have guide surfaces operative in both rotational directions.
  • the drive protrusions are preferably distributed on the lower side of the cutting head both radially, so that different drive protrusions operate on different radial distances from the rotation axis (for influencing muck at different radial distances from the rotation axis), and angularly, seen around the rotation axis, such that the drive protrusions are more or less evenly spread on the lower side.
  • the cutting head has a plurality of head scrapers, that are extending, seen in axial directions of the cutting head, at least partly past the cutting elements which contributes to removing partly loosened rock material from the rock face in an advantageous way.
  • a muck collecting apron is arranged at a front position of the mining machine below the cutting head.
  • the muck collecting apron is preferably provided with muck discharge wheels for driving muck to a conveyer belt.
  • the rotator is enclosed inside said cutting head. This feature results in that rotator motor torque is easily transmitted to the cutting head and that complicated gearing can be avoided. This solution also is space saving, since the rotator occupies a normally empty space.
  • the support unit preferably includes a bearing support member arranged to enclose the rotator in an inside and to support cutting head bearings on an outside.
  • the bearing support is preferably short and wide pipe-shaped with one end attached to the support unit. This solution gives a rigid and strong attachment with easy measures.
  • the rotator shaft is preferably directly connected to the cutting head. This is preferred since it is i.a. economic and space saving but it is not excluded that the connection is indirect over a gear transmission.
  • the free end of the cutting head being its lower side is defined by a torque transmitting web portion of the cutting head for strength and stability.
  • the cutting head is suitably peripherally essentially cylindrical and has supports for the bearings on its inside.
  • the bearing support member is connected to a boom of the support unit in the form of a support boom through annular contact.
  • the bearing support member has at least one annular inside rotator support flange for mounting of the rotator.
  • the bearing support member is axially extending and essentially ring-shaped (pipe-shaped).
  • the invention also relates to a method of driving tunnels, galleries or the like, with the aid of a mining machine including: a rotational cutting head having a plurality of rock engaging cutting elements distributed on its periphery, the method including: rotationally driving said cutting head having a rotation axis extending essentially vertically, when the mining machine is aligned on horizontal ground, positioning the cutting head between cuts by swinging the cutting head horizontally from a first side to a second side, forcing the cutting head against rock to be worked so as to disintegrate the rock, and transporting away released material.
  • the method is distinguished by pressing the cutting head linearly against rock to be worked, essentially in a longitudinal direction of the mining machine when aligned by forcing the cutting head with the aid of a one-sided support unit such that the lower side of the cutting head is free from support means, and rotating the cutting head in a first rotational direction during a cut where the cutting head is swung to the first side and rotating the cutting head in a second rotational direction in a cut where the cutting head is swung to the second side so that disintegrated rock material is forced by the cutting head from the respective side to which the cutting head is swung to a more central part of an excavation site.
  • the method preferably includes driving disintegrated rock material below the cutting head radially outwards, when rotating the cutting head, with the aid of a plurality of drive protrusions having guide surfaces arranged on the lower side of the cutting head.
  • Figs. 1 and 2 show a mining machine 1 including a front unit 2 and a rear unit 3, which are interconnected over a joint arrangement 4.
  • a cutting head 5 which is formed basically as a rotating wheel having rock engaging and rock disintegrating elements distributed over its surface seen in a circumference direction (around the cutting head) as well as seen in an axial direction, in parallel with a rotation axis A ROT for the cutting head.
  • the rotation axis A ROT is in the shown example included in a central plane C (see Fig. 2 ) extending essentially vertically when the mining machine is positioned on horizontal ground (and when the mining machine is aligned).
  • the cutting head 5 is rotationally drivable through a rotator (see Fig. 8 ) being positioned inside the cutting head 5.
  • the cutting head is supported by a cutting head holder 13 and is also swingable by the aid of a positioning arrangement including positioning cylinders (whereof upper positioning cylinders 12' and 12" are shown) allowing for positioning the cutting head in vertical directions in order to cut higher cuts (see Fig. 3b ) for forming a roof of a driven tunnel and lower cuts (see Fig. 3a ) for forming floor or ground of said tunnel.
  • the arrangement for cutting head swing can be arranged in various ways and in the embodiment with upper positioning cylinders 12' and 12", the positioning arrangement 12 also includes (not shown) one or more lower positioning cylinder (-s) which is/are connected to a lower region of the cutting head holder 13.
  • the cutting head can also be arranged to cut intermediate cuts between the higher cuts and the lower cuts.
  • Fig. 2 also shows a removable inspection cover 37 positioned at the top side of the cutting head holder 13. Seals, the rotator motor, the bearings and other components positioned inside the cutting head are advantageously easily accessible for inspection and for service through the removable inspection cover.
  • the cutting head 5 can also be swung laterally in order to perform drifting when extended width of the cut tunnel is required.
  • the positioning arrangement 12 is arranged also to position the cutting head 5 between cuts by swinging the cutting head horizontally to a first side position, which is represented in Fig. 4 , or to a second side position (not shown).
  • a pressing unit (not shown) is included in the front unit 2 which forces the rotating cutting head with its positioning arrangement linearly forward for performing the cutting, drifting, or driving face, wherein engaged rock is disintegrated.
  • the pressing unit can for example include powerful hydraulic actuator (-s) and/or a power linkage.
  • Said means 7 includes a ground engaging scraper or apron having mechanical means in the form of rotational wheels with feeder arms (see Figs. 5 and 6 ) for collecting the disintegrated rock material and to place it on a moveable transport band, which extends through the front unit and which connects to a similar transport band inside the rear unit all the way to a material discharge 7' for loading the material on a transport truck or the like.
  • the front unit 2 also exhibits crawler bands whereof one is shown and indicated with 6.
  • upper stabilizing units 10 for engagement with the tunnel roof and lower stabilizing units 11 for ground contact. These stabilizing units are forced against the meeting roof and ground respectively in order to secure the mining machine and counteract the considerable forces created during performing the cuts in the drifting face.
  • a control unit is denoted CPU.
  • the rear unit 3 is provided with rear crawler bands 8 and drive means for the working equipment including drive motor means 22, transmission means 23 and pumps etc. 24 (only indicated in Fig.2 ).
  • drive motor means 22 including drive motor means 22, transmission means 23 and pumps etc. 24 (only indicated in Fig.2 ).
  • gear transmission and one or more hydraulic pumps for supply of pressure fluid to various components such as the cutting head and the crawler bands.
  • the bolting equipment units 9 At the rear part of the front unit 2 there are positioned two bolting equipment units 9 that are arranged for securing the roof more or less continuously during mining.
  • the bolting equipment units 9 preferably work with self-drilling bolts for simplification of the equipment.
  • Swing cylinders together with a central swing axis A SWING provide means for swinging the front and rear units 2 and 3 of the mining machine relative to each other.
  • This central joint arrangement exhibits an opening, through which the material band for disintegrated material is led for subsequently discharge.
  • the positioning arrangement for the cutting head 5 indicated with 12 actuates the cutting head holder 13 in the form of a support boom so as to be pivoted in a cutting head swing joint assembly 14 in respect of the remainder of the front unit 2 and to be controlled for lateral as well as vertical swinging through the upper and lower positioning cylinders.
  • the cutting head swing joint assembly allows more or less universal (although limited) swing up and down as well as from side to side.
  • the pair of upper positioning cylinders (12' and 12") and the one or more lower positioning cylinder (-s) together with the cutting head swing joint assembly 14 provide such swing on the one hand since the respective upper and lower positioning cylinders are disposed in planes respectively above and below an essentially horizontal axis A LIFT for swinging the cutting head up and down around the cutting head swing joint assembly 14. Extending the upper positioning cylinders (and shortening the lower positioning cylinder (-s)) results in lowering the cutting head and extending the lower positioning cylinder (-s) (and shortening the upper positioning cylinders) results in lifting the cutting head. This is illustrated in Figs. 3a and 3b .
  • the pairs of lateral positioning cylinders are disposed laterally on each side of the cutting head swing joint assembly 14. Extending the positioning cylinder (-s) on one side and shortening the positioning cylinder (-s) on the other side results in side swinging the cutting head essentially around an axis A HEAD . Lifting/lowering and side swinging of the cutting head can of course be combined.
  • Fig. 4 shows the cutting head swung into a first side position.
  • the cutting head is arranged to rotate in a first rotational direction D R1 during a cut.
  • muck is forced by the cutting head from the first side, to which the cutting head is swung, of a part of a tunnel under construction, to an area indicated with M being a more central area in a front central region of the mining machine so as to be more easily input to the means 7, 7' for transporting away released muck.
  • the rotator When excavating at the other side of the tunnel, the rotator is arranged to rotate the cutting head in a second rotational direction in a cut where the cutting head is swung to a second side position (not shown).
  • Fig. 5 is a perspective view of the mining machine 1 showing the cutting head 5 uplifted.
  • the axis A LIFT is shown below a plane through the positioning cylinders 12' and 12" (only 12" shown).
  • 36 indicates head scrapers extending radially as well as axially at the outer periphery of the cutting head. The head scrapers aid in removal of rock being partly loosened because of the action of cutting elements 5'. At least a selection of the head scrapers preferably at least partly protrude axially past the cutting elements 5' and also contributes in feeding muck up on the apron 7.
  • Fig. 6 shows the cutting head 5 from the front.
  • the cutting elements 5' which in this case are rotatable, at least part disc-shaped round elements that are brought to rotate and cut grooves in the rock when the rotating cutting head is pressed with high force during a cut for drifting, so as to produce parallel grooves and thereby disintegrate the rock.
  • C indicates the central plane mentioned above.
  • the muck collecting scraper apron 7 is arranged slightly inclined at a front position below the cutting head 5.
  • the apron is provided with rotational muck discharge wheels 15 for driving muck that is present on the apron to a conveyer belt 16. Also is shown the lower side of the cutting head 5 with a plurality of drive protrusions 17.
  • Fig. 7a shows diagrammatically the lower side of the cutting head 5 with drive protrusions in more detail.
  • Drive protrusions 17', 17" and 17''' are here positioned with their top ends at three different radial distances, R 1 , R 2 and R 3 respectively, from the rotation axis A ROT so as to be able to influence encountered muck at different radial levels.
  • All drive protrusions 17', 17" and 17'''' have guide surfaces 18 being operative in either rotational direction so as to be able to influence muck when the cutting head is rotating in both directions. All said shown guide surfaces 18 hereby form an open, positive outward angle ⁇ of about 135° to a radius of the cutting head, which is a positive angle as seen in the prevailing rotational direction.
  • Fig. 7b shows the lower side of a cutting head 5 with drive protrusions 17 (only two of a greater plurality shown) which are each provided with a guide surface 18 being operative in one rotational direction only. Both drive protrusions 17 have guide surfaces 18 being concavely curved. The two drive protrusions 17 in this embodiment together influence muck when the cutting head is rotating in both directions. It is evident that the cutting head in practice is provided with a plurality of pairs of drive protrusions 17 distributed around the rotation axis and radially from the rotation axis. Other shapes of drive protrusions 17 can be contemplated, for example more strip-shaped with more or less linear or curved or multi linear angled guide surfaces 18.
  • Fig. 7c shows the lower side of a cutting head 5 with eight drive protrusions 17 being strip-shaped or band-shaped and extending linearly along radiuses of the cutting head 5. All eight drive protrusions 17 are active in either rotational direction of the cutting head and consequently exhibit linear guide surfaces 18 on either side.
  • the drive protrusions are dimensioned to protrude from the cutting head in order to fulfil the function to displace muck (or disintegrated rock) so as to force the muck being below the cutting head radially outwards from the rotation axis of the cutting head towards its periphery at the same time as they force the muck towards the center of the machine front.
  • the drive protrusions have to have a suitable extension in the axial (rotation axis) direction of the cutting head.
  • That extension is calculated based on firstly the physical limitations that prevent said extension not to be too great because of interference with other components such as the muck collecting apron, the muck discharge wheels and the associated conveyer belt in a position where the cutting wheel is in a position closest to these components.
  • the dimensions also depend on character of rock or ore to displace, dimensions of the cutting head, cutters on the cutting head and expected size of particles and lumps of rock.
  • a suitable axial extension from a side of the cutting wheel is about 10 - 80 mm. More preferred, the axial extension is from 25 to 65 mm and most preferred, the axial extension is from 35 to 55 mm.
  • the inventive mobile miner is subjected to great forces and torques required for its operation. This requires a driving arrangement and bearing support of the cutting head being sufficiently ridged and strong and yet small to maintain flexibility for allowing fast and effective rock working.
  • the rotational speed of the cutting head is relatively low, from about 10 revolutions per minute up to about 20 or 30 revolutions per minute. Given a certain effect this requires the torque to be great.
  • the solution to the driving and bearing support of the cutting head provides rigid and strong bearing support at a considerable distance from the rotation axis and preferably a direct drive hydraulic motor being very powerful with or without central reduction gear.
  • the strong and rigid bearing support is essential since the support boom is one-sided meaning that the rotating cutting head is supported from one side only.
  • the rotator is preferably a direct drive hydraulic motor of radial piston type wherein the rotational speed of the rotator is the same as that of the cutting head. It is, however, not excluded that a motor and a reduction gear in one or more steps is used, which, however, is a bulkier and more expensive solution. It is also possible to use an electric synchronous motor or any other suitable motor having short building length together with a reduction gear.
  • a spherical radial roller bearing is used together with two axial bearings.
  • Another embodiment can include a spherical roller bearing etc.
  • the one-sided support boom has the advantage that support of the cutting head on one side allows the cutting head to be placed closer to a tunnel floor of rock to be worked without any part of the support boom coming into contact with rock or equipment.
  • Fig. 8 illustrates this aspect of the invention, wherein a very large support bearing 19 is provided which is supported by a hollow, pipe-shaped bearing support member 20 which on a first end provides a large annular attachment surface 21 to the one-sided boom 13 (in this case constructed otherwise than what is shown in the previously discussed Figs).
  • This makes it easy, with reasonable dimensions and thickness of material of the bearing support member as well as of the inside of the cutting head 5, to transmit forces from rock contact to the boom 13 and vice versa.
  • the rotator 32 is fixed inside the hollow axis and preferably for example co-operates with an inside flange 33 of the bearing support member 20 so as to have the motor drive shaft 34 being directly connected to the radially extending lower side 35 of the cutting head 5, allowing the cutting head 5 to be closed and slim with said lower side 35 being the bottom of a "can-shape".
  • the support bearing 19 of the cutting head 5 is positioned at the outside of the bearing support member 20.
  • Two of the plurality of drive protrusions having guide surfaces arranged to drive disintegrated rock material radially outwards in directions radially out from the rotation axis of the cutting head are exemplified at 17. These drive protrusions are advantageous to prevent muck from being accumulated below the cutting head and thereby obstructing downward movements and thus proper operation of the mining machine which requires positioning of the cutting head close to rock to be worked.
  • Fig. 9 shows diagrammatically an inventive method sequence.
  • Position 25 indicates the start of the sequence.
  • Position 26 indicates positioning and rotating a cutting head for drifting purposes.
  • Position 27 indicates forcing the cutting head linearly against rock to be worked.
  • Position 28 indicates rotating the cutting head in a first rotational direction during a cut where the cutting head is in a first side position.
  • Position 29 indicates driving disintegrated rock material below the cutting head radially outwards, when rotating the cutting head, with the aid of a plurality of drive protrusions.
  • Position 30 indicates end of the sequence.
  • the cutting head can be equipped with stud-like, pick-like or peg-like rock disintegrating elements that are rigidly positioned on the periphery of the cutting head.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
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Claims (14)

  1. Bergbaumaschine (1) zum Vortreiben von Tunneln, Stollen o. ä., wobei die Bergbaumaschine (1) Folgendes aufweist:
    - einen sich drehenden Schneidkopf (5) mit einer Vielzahl von das Gestein in Eingriff nehmenden Schneidelementen (5'), die über seinen Umfang verteilt sind,
    - einen Rotator (32) zum Drehantrieb des Schneidkopfs (5),
    - wobei der Schneidkopf (5) eine Rotationsachse hat, die sich im Wesentlichen vertikal erstreckt, wenn die Bergbaumaschine auf horizontalem Boden ausgerichtet ist,
    - eine Positionierungsanordnung (12), die dazu angeordnet ist, den Schneidkopf (5) zwischen Schnitten zu positionieren, wobei die Positionierungsanordnung (12) dazu angeordnet ist, den Schneidkopf horizontal von einer ersten Seite zu einer zweiten Seite zu schwenken, um Positionen auf der ersten Seite beziehungsweise auf der zweiten Seite zu erreichen,
    - Mittel, um den Schneidkopf gegen zu bearbeitendes Gestein zu drücken, um das Gestein aufzubrechen, und
    - Mittel (7, 7') zum Abtransport von weggebrochenem Material,
    dadurch gekennzeichnet,
    - dass der Schneidkopf an einer oberen Seite an einer einseitigen Stützeinheit angebracht ist, so dass die untere Seite des Schneidkopfs keine Stützmittel aufweist,
    - dass die Bergbaumaschine eine Anpresseinheit aufweist, die dazu angeordnet ist, den Schneidkopf (5) linear, im Wesentlichen in einer Längsrichtung der Bergbaumaschine, wenn diese ausgerichtet ist, gegen das zu bearbeitende Gestein zu pressen, und
    - dass der Rotator (32) dazu angeordnet ist, den Schneidkopf (5) während eines Schnitts in eine erste Drehrichtung zu drehen, wobei der Schneidkopf in einer ersten Seitenposition ist, und dass der Rotator (32) dazu angeordnet ist, den Schneidkopf (5) während eines Schnitts in eine zweite Drehrichtung zu drehen, wobei der Schneidkopf in einer zweiten Seitenposition ist, so dass aufgebrochenes Gesteinsmaterial mittels des Schneidkopfs von der jeweiligen Seite, zu der der Schneidkopf geschwenkt worden ist, zu einem zentraleren Teil (M) eines Abbauorts gedrückt wird.
  2. Bergbaumaschine nach Anspruch 1, dadurch gekennzeichnet, dass der Schneidkopf (5) als ein Drehrad mit Elementen ausgebildet ist, die Gestein in Eingriff nehmen und Gestein aufbrechen und, sowohl in einer Umfangsrichtung als auch in einer Axialrichtung gesehen, parallel zu einer Rotationsachse (AROT) für den Schneidkopf über seine Oberfläche verteilt sind.
  3. Bergbaumaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Schneidelemente (5') drehbare, mindestens teilscheibenförmige, runde Elemente sind, die zum Drehen veranlasst werden und parallele Furchen in das Gestein schneiden und dadurch das Gestein aufbrechen, wenn der sich drehende Schneidkopf (5) während eines Schnitts mit hoher Kraft gegen das Gestein gepresst wird.
  4. Bergbaumaschine nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass die Positionierungsanordnung (12) auch so angeordnet ist, dass sie den Schneidkopf (5) vertikal nach oben und unten schwenkt, um obere beziehungsweise untere Positionen zu erreichen.
  5. Bergbaumaschine nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, dass die untere Seite (35) des Schneidkopfs (5) mit einer Vielzahl von Antriebsvorsprüngen (17) mit Führungsflächen (18) versehen ist, die dazu angeordnet sind, das aufgebrochene Gesteinsmaterial wegzutreiben.
  6. Bergbaumaschine nach Anspruch 5, dadurch gekennzeichnet, dass die Führungsflächen (18) einen offenen Winkel (α) zu einem Radius des Schneidkopfs bilden.
  7. Bergbaumaschine nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass mindestens eine erste Auswahl der Antriebsvorsprünge mit Führungsflächen versehen sind, die so angeordnet sind, dass sie in der ersten Drehrichtung wirksam sind, sowie mindestens eine zweite Auswahl der Antriebsvorsprünge mit Führungsflächen versehen ist, die so angeordnet sind, dass sie in der zweiten Drehrichtung wirksam sind.
  8. Bergbaumaschine nach einem der Ansprüche 1 - 7, dadurch gekennzeichnet, dass der Rotator (32) in dem Schneidkopf (5) eingeschlossen ist.
  9. Bergbaumaschine nach einem der Ansprüche 1 - 8, dadurch gekennzeichnet, dass ein Schuttersammelschurz (7) an einer vorderen Position unter dem Schneidkopf (5) angeordnet ist.
  10. Bergbaumaschine nach Anspruch 9, dadurch gekennzeichnet, dass der Schuttersammelschurz (7) mit Schutteraustragrädern (15) versehen ist, um den Schutter zu einem Förderband (16) zu treiben.
  11. Bergbaumaschine nach einem der Ansprüche 1 - 10, dadurch gekennzeichnet, dass die Stützeinheit ein Lagerstützglied (20) aufweist, das so angeordnet ist, dass es den Rotator (32) innen einschließt und ein Schneidkopflager oder Schneidkopflager (19) außen stützt.
  12. Bergbaumaschine nach Anspruch 11, dadurch gekennzeichnet, dass sich das Lagerstützglied (20) axial erstreckt und im Wesentlichen rohrförmig ist.
  13. Verfahren zum Vortrieb von Tunneln, Stollen o. ä. mit Hilfe einer Bergbaumaschine (1), die Folgendes aufweist:
    - einen sich drehenden Schneidkopf (5) mit einer Vielzahl von das Gestein in Eingriff nehmenden Schneidelementen (5'), die über seinen Umfang verteilt sind, wobei das Verfahren Folgendes aufweist:
    - Drehantreiben des Schneidkopfs (5), der eine Rotationsachse hat, die sich im Wesentlichen vertikal erstreckt, wenn die Bergbaumaschine auf horizontalem Boden ausgerichtet ist,
    - Positionieren des Schneidkopfs (5) zwischen Schnitten durch Schwenken des Schneidkopfs vertikal nach oben und unten sowie horizontal von einer ersten Seite zu einer zweiten Seite,
    - Pressen des Schneidkopfs gegen das zu bearbeitende Gestein, um das Gestein (bei einem Schnitt) aufzubrechen, und
    - Abtransport von weggebrochenem Material,
    gekennzeichnet durch
    - Pressen des Schneidkopfs (5) linear, im Wesentlichen in einer Längsrichtung der Bergbaumaschine, wenn diese ausgerichtet ist, gegen das zu bearbeitende Gestein, indem mittels einer einseitigen Stützeinheit Kraft auf den Schneidkopf ausgeübt wird, so dass die untere Seite des Schneidkopfs keine Stützmittel aufweist, und
    - Drehen des Schneidkopfs (5) in eine erste Rotationsrichtung während eines Schnitts, wobei der Schneidkopf (5) zu der ersten Seite geschwenkt wird, und Drehen des Schneidkopfs in eine zweite Rotationsrichtung während eines Schnitts, wobei der Schneidkopf zu der zweiten Seite geschwenkt wird, so dass aufgebrochenes Gesteinsmaterial mittels des Schneidkopfs von der jeweiligen Seite, zu der der Schneidkopf geschwenkt worden ist, zu einem zentraleren Teil eines Abbauorts gedrückt wird.
  14. Verfahren nach Anspruch 13, gekennzeichnet durch Treiben von weggebrochenem Gesteinsmaterial unter dem Schneidkopf (5) radial nach außen, wenn der Schneidkopf gedreht wird, mit Hilfe einer Vielzahl von Antriebsvorsprüngen (17) mit Führungsflächen (18), die an der unteren Seite des Schneidkopfs (5) angeordnet sind.
EP17741735.9A 2016-01-22 2017-01-17 Bergbaumaschine und verfahren zum betreiben einer bergbaumaschine Active EP3405648B1 (de)

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SE1650078A SE1650078A1 (en) 2016-01-22 2016-01-22 Mining machine and method for operating a mining machine
PCT/SE2017/050037 WO2017127009A1 (en) 2016-01-22 2017-01-17 Mining machine and method for operating a mining machine

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* Cited by examiner, † Cited by third party
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CN114135309A (zh) * 2021-11-23 2022-03-04 中铁工程装备集团有限公司 矩形断面开挖刀盘及掘进机

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SE543577C2 (en) * 2019-08-26 2021-04-06 Epiroc Rock Drills Ab A mining machine and a method for rock excavations, as well as a method for conveying hydraulic fluid using the mining machine

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Publication number Priority date Publication date Assignee Title
US4548442A (en) * 1983-12-06 1985-10-22 The Robbins Company Mobile mining machine and method
AT506501B1 (de) * 2008-02-15 2011-04-15 Sandvik Mining & Constr Oy Strecken-vortriebsmaschine
WO2009100469A1 (de) * 2008-02-15 2009-08-20 Sandvik Mining And Construction G.M.B.H. Vortriebsmaschine mit bohrkopf aus diskenwerkzeugen
AT510657B1 (de) * 2010-11-05 2013-04-15 Sandvik Mining & Constr Oy Streckenvortriebsmaschine
SE537425C2 (sv) * 2011-09-27 2015-04-28 Atlas Copco Rock Drills Ab Anordning och förfarande för drivning av tunnlar, orter eller liknande

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114135309A (zh) * 2021-11-23 2022-03-04 中铁工程装备集团有限公司 矩形断面开挖刀盘及掘进机

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WO2017127009A1 (en) 2017-07-27
ZA201803755B (en) 2019-09-25

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