EP0021987B1 - Maschine zum unterirdischen Streckenvortrieb - Google Patents

Maschine zum unterirdischen Streckenvortrieb Download PDF

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Publication number
EP0021987B1
EP0021987B1 EP80400890A EP80400890A EP0021987B1 EP 0021987 B1 EP0021987 B1 EP 0021987B1 EP 80400890 A EP80400890 A EP 80400890A EP 80400890 A EP80400890 A EP 80400890A EP 0021987 B1 EP0021987 B1 EP 0021987B1
Authority
EP
European Patent Office
Prior art keywords
frame
machine according
support
roof
advance
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.)
Expired
Application number
EP80400890A
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English (en)
French (fr)
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EP0021987A1 (de
Inventor
Paul Casanova
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Techniques Industrielles Et Minieres (societe Anonyme Francaise)
Original Assignee
Techniques Industrielles Et Minieres (societe Anonyme Francaise)
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to AT80400890T priority Critical patent/ATE4135T1/de
Publication of EP0021987A1 publication Critical patent/EP0021987A1/de
Application granted granted Critical
Publication of EP0021987B1 publication Critical patent/EP0021987B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • 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
    • E21C27/22—Mineral freed by means not involving slitting by rotary drills with breaking-down means, e.g. wedge-shaped drills, i.e. the rotary axis of the tool carrier being substantially perpendicular to the working face, e.g. MARIETTA-type
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
    • E21C29/22—Propulsion of machines for slitting or completely freeing the mineral from the seam by wheels, endless tracks or the like
    • E21C29/24—Trucks carrying the machine while working
    • 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
    • E21D9/1026—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 the tool-carrier being rotated about a transverse axis
    • 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
    • E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier

Definitions

  • your present invention relates to a machine for digging underground galleries, in particular mine galleries.
  • Such a machine generally comprises a felling tool articulated on a frame and mounted so as to be able to be moved along the height of the cutting face.
  • This frame is provided with ground support means and propulsion means to follow the advance of the slaughter.
  • the digging of a gallery involves three basic operations which are the felling, the advance of the support and the evacuation of the cuttings. For satisfactory productivity, the removal of cuttings and the felling must be carried out simultaneously. On the other hand, security requires that the advance of the support be as continuous as possible, as the slaughter progresses. Finally, the machine must allow, in difficult terrain, easy access to the cutting face to control the condition of the terrain and to carry out essential ancillary operations such as bolting.
  • FR-A-1 276 927 describes a machine of the kind specified above, in which the felling tool is movable around a horizontal axis situated at a certain height which is a fixed characteristic of the machine taken as a whole .
  • the felling head carrying the tool is also mobile around a vertical axis, which causes total congestion of the central part where the only auxiliary device is a conveyor ensuring the continuous evacuation of the cuttings.
  • the advance of the felling head is effected by pushing on the fixed props, so that, in principle, the support cannot be continuous.
  • the size of the central part requires the complete removal of the machine if one wishes to carry out auxiliary operations such as bolting.
  • the present invention aims to achieve a digging machine which leaves, in its central part, a wide free passage allowing access to the cutting face and the establishment of various auxiliary machines, and which allows continuous support as the 'advanced.
  • the point of articulation of the felling tool is located on a movable member relative to the frame and capable of being moved in a direction substantially parallel to the direction of advance.
  • the actual felling phase corresponding to the tool stroke, is preceded by a tool advance phase in the cutting face. Thanks to the aforementioned arrangement, this advance is effected not by an advance of the frame, but by the movable member, the frame remaining firmly in support on the ground and on the roof. Stability is thus better ensured during this phase.
  • the shaft carrying the felling tool is mounted on two bearings, one of which is movable vertically to give the tool an oblique stroke in a predetermined direction.
  • each support device on the roof is articulated on the frame by means of two substantially rectangular axes of rotation, so as to accommodate defects in alignment of the roof.
  • each roof support device is advantageously connected to a jack.
  • each roof support device comprises a crawler train which bears against the roof.
  • Each track train includes at least. a track cooperating with a guide path connected to a frame by means of a double articulation with two oscillation axes, substantially rectangular, making it possible to compensate for the unevenness of the roof surface.
  • the ground support means comprise two caterpillar tracks arranged laterally.
  • the propulsion means comprise a linear displacement motor member, a fixed part of which is connected to the frame, and a movable part of which cooperates with a rack formed in the track supporting the ground, the stroke of this member corresponding to a step in the advance of the abatement tool floor.
  • the crawler trains for supporting the ground preferably comprise each at least one track cooperating with a guide track connected to the frame by a double articulation with two axes. of substantially rectangular oscillations, to make up for unevenness in the ground.
  • one of the crawler tracks on the ground is connected to the frame by an articulation with a substantially horizontal axis and perpendicular to the direction of advance.
  • the frame comprises a flat spacer located at the level of the tracked support train on the ground and provided with liftable inclined planes to facilitate crossing.
  • the machine is thus provided with an upper spacer and a lower spacer, which improves its rigidity.
  • the embodiment indicated does not obstruct access to the cutting face or the passage of excavation equipment.
  • the roof support device comprises at least one sliding member articulated on the frame and provided with skids to cooperate with beams maintained applied to the roof by said member.
  • These beams act as a sliding path for the frame and at the same time support the roof immediately behind the cutting face.
  • the sliding member then advantageously comprises retractable feet for bearing on the roof and releasing the beams in order to make them advance at each advance step of the digging.
  • the frame includes sliding pads for cooperating with support beams placed laterally on the ground.
  • the progression means comprise a linear displacement motor member of which a fixed part is connected to the frame, and of which a movable part is connected to a support beam.
  • the frame includes retractable feet for coming to bear on the ground and clearing the support beams, in order to make them advance at each advance step of digging.
  • the invention provides. that the roof support devices are arranged obliquely to bear on the roof of such a gallery.
  • the slaughtering tool then comprises a truncated cone provided with tools mounted at the end of a shaft connected to the chassis by an articulation allowing angular movements of the slaughtering tool in two substantially perpendicular planes.
  • composition of these two displacements makes it possible to carry out the curvilinear displacements corresponding to the profile of the gallery.
  • the articulation of the felling tool on the frame is slidably mounted on a substantially horizontal shaft of the frame.
  • the digging machine comprises a frame 1 composed of two lateral flanges 2, 3 connected together by shafts 4, 5 and each resting on a crawler train, respectively 6, 7.
  • the flange 2 is connected to the train 6 by means of two suspension devices 8 each composed, in a manner known per se, of two cylindrical grains stepped and perpendicular to each other, cooperating with complementary female bearing surfaces ( Figures 1 and 2), so as to provide two degrees of freedom between the flange 2 and the guide 9 of the tracks 11.
  • the flange 3 is connected to the train 7 in substantially the same way, but, in addition, a frame 12 which carries the suspension devices 8 is articulated on the flange 3 via a shaft 13 substantially horizontal ( Figures 2 and 3), so that the train 7 as a whole can oscillate in a vertical plane parallel to the direction of advance of the system. It is thus possible to obtain good simultaneous seating of the two trains 6 and 7, even if the ground has a left surface.
  • Two arms 14 are each articulated, on the one hand, on the shaft 4 by means of a yoke 15 and, on the other hand, on a member 16 of a crawler train 17 by means of a yoke 18.
  • Cylinders 19, whose body 21 takes a ball joint in the thickness of the flanges 2 and 3, and whose rod 22 also takes a ball joint in a cavity 23 of each arm 14, are arranged so as to push up the arms 14 to apply the trains 17 on the roof of the gallery.
  • Each of the trains 17 comprises a chassis 24 articulated on the frame 16 by pins 25 whose axis is substantially parallel to the direction of advance of the system.
  • Each of the chassis 24 carries two tracks 26 by means of suspension devices 8 with two rectangular oscillation axes (FIG. 4) and guides 27.
  • the tracks 26 are provided wide enough to cover a large part of the roof and provide effective support.
  • the shaft 5 which is located, like the shaft 4, in the upper half of the assembly, carries two rotary arms 28 which serve by bearing, by their other end, to the shaft 29 of a drum slaughter 31, and are joined by a cross member 32.
  • the drum 31 consists, in particular, of a helical sheet 33, fixed on a rotary sleeve 34 integral with the shaft 29, and which carries, on its edge, cutting tools 35 ( Figures 5 and 6).
  • the propeller has, on each side of the drum, steps in opposite directions so as, in cooperation with the direction of rotation of the drum, to bring the cuttings towards the median longitudinal plane of the system.
  • each arm 28 On each arm 28 is fixed a geared motor group 36 which, by means of a train with three pinions, 37, 38, 39, attacks the shaft 29.
  • the sheet 33 in a helix is interrupted and replaced by a felling chain 41, also provided with cutting tools 35, and resting on a casing 42 enveloping the three pinions.
  • Two drive nuts 43, 44 are integral with the sleeve 34 and mesh with the chain 41.
  • Each arm 28 is connected by an articulation 45 to the rod of a jack 46 articulated on the other hand on a yoke 47 secured to the corresponding flange of the frame 1.
  • a jack 48 is articulated on one of the suspension devices 8, and its rod carries a fault 49 capable of coming to engage by gravity in notches 51 made each in a link of the track 11 ( Figure 7).
  • the actuation of the jack thus allows the progression of the system by means of the tracks.
  • the felling drum is brought into the upper position 31a (FIG. 1) by means of the jacks 46, and it is made to rotate by means of the geared motors groups 36.
  • the jacks 19 being actuated so as to apply the upper gears 17 to the roof, the entire system is brought forward by means of the jacks 48. During this advance, the drum 31 digs the ground and we stops the advance when it has reached 31 b.
  • the cylinder 46 is retracted, which lowers the drum 31 which envelops the surface S shown in phantom, and the lowering movement is stopped when the drum has reached ground level.
  • the tracks are applied exactly on the ground and on the roof, even in the event of a flatness or irregularity. Thanks to the articulation 13 of the frame 12, the lower tracks are, in fact, not subject to remaining in the same plane.
  • the articulated fixing of the top crawler trains around the pins 25, allows these trains to match the irregularities of the roof. Finally, the suspension devices 8 with two articulation axes allow each track to match small roughness independently.
  • the upper tracks widely applied on the roof provide sufficient temporary support which can be made final by a team working at ease immediately behind the system and intervening as soon as a new advance has cleared an additional part of the roof. .
  • the way in which the machine is embedded between the ground and the roof makes it possible, without loss of stability, to place the shaft 5 in a relatively high position, so that the sweeping of the drum 31 leaves a front of size S relatively close to the natural slope, or at least looking generally upwards, which is a disposition going against the collapses of the forehead.
  • the flanges 2 and 3 of the frame 1 are rigidly joined by a flat spacer 52 located near the ground level ( Figures 8 and 9).
  • Articulated drawbridges 53 liftable by jacks (not shown), can rest on the ground to allow easy passage of personnel and loads.
  • a frame 101 consists of two lateral flanges 102, 103, interconnected by a shaft 104 and by a shaft 105, not shown, similar to the shaft 5 of the previous embodiment and playing the same role.
  • the flanges 102, 103 carry sliding shoes 161 provided to cooperate with profiled irons 162 arranged on the ground in the direction of advance of the system, to constitute support beams. Hooks 163 are provided to prevent derailments.
  • two retractable feet 164 controlled by jacks 165 allow the frame 101 to rest on the ground to relieve the profiles 162.
  • Two arms 114 are articulated by yokes 115 on the shaft 105 and each carry, by a yoke 118, at their other end, a sliding member 116.
  • the arms 114 are actuated by jacks 119, as in the previous embodiment, to allow the pads 117 to be applied upwards.
  • Each of the pads 117 carries two retractable feet 167 actuated by jacks to bear on the roof and allow the sections 166 to be relieved.
  • a jack 148 has its body articulated on the flange and its rod articulated on a yoke 149 fixed to the corresponding section 162. It is understood that the extension of the jack causes the sliding of the frame on the profiles 162.
  • slaughtering means are the same as in the previous embodiment and operate in the same way.
  • the actuator 148 is actuated to cause the frame to slide on the profiles 162, over a distance corresponding to a predetermined step of advance.
  • the retractable feet 164 and 167 are protruded so that the frame is supported on the ground and on the roof only by these feet, and the actuator is actuated in the other direction to bring the profiles 162.
  • the profiles 166 which constitute a mobile support, and there is a fixed support behind them.
  • FIG. 13 takes up part of FIG. 1 in this other embodiment.
  • Two rotary arms 228 carrying a cutting drum 231 are articulated not on the flanges 202, 203 of the frame, but on mobile members 268 themselves articulated on the flanges respectively. These members can be moved in a vertical plane parallel to the direction of advance by respective cylinders 269 fixed elsewhere to the flanges.
  • the arms 228 are actuated, as in the previous embodiment, by jacks 246.
  • this arrangement has the advantage of advancing the drum from 231a to 231b, while the system is stopped and, consequently, stable and firmly embedded in the gallery. A more regular soil is also produced by leveling off the hatched part A perfectly.
  • the shaft 305 carrying the arms 328 of the felling drum is mounted on two bearings, one of which, 371, is slidably mounted on the flange 302 of the frame, the other 372 being fixed.
  • the shaft 305 is fixed in rotation, but can pivot around a pin 373 located in the bearing 372, so that the shaft can come to occupy an oblique position 305a.
  • the bearings 371 and 372 are bi-conical to allow the expected angular movement.
  • two jacks 374 have their bodies fixed to the frame 302, while their rods 375 are applied to the bearing 372 ( Figure 15).
  • the shaft 305 comes into an oblique position 305a, which makes it possible to lift the abatement drum also in the oblique position 331a, for digging an oblique roof.
  • This arrangement finds its advantage when one has to dig a gallery in a sloping deposit, the gallery progressing under a bench without cutting it. We can then, while giving the gallery a horizontal floor (or at least without slope), give it a roof consisting of the bench chosen most of the time for its mechanical qualities.
  • a frame 401 comprises two flanges 402, 403, mounted on crawler trains 406, 407 respectively, resting on the ground and similar to those of the preceding embodiments.
  • a shaft 404 bent in an inverted V is fixed by its respective ends in the flanges 402, 403, and carries on its inclined portions bearings 415 of arms 414 articulated on crawler trains 417, applied to the roof of the gallery.
  • crawler trains 417 are similar to trains 17 of the first embodiment described and their method of attachment to the system is similar.
  • a support 482 On a transverse shaft 481 connecting the two flanges is fixed a support 482 on which are supported two cylinders 419 whose rods 422 are supported on the arms 414 to force the crawler trains 417 bearing on the roof of the gallery.
  • An arm 483 provides a consolidation link between the shaft 404 and the shaft 481.
  • a horizontal transverse shaft 405 carries a slide 484 ( Figures 17, 20, 21). This slide is fixed to the rod 485 of a jack 486, the body of which, parallel to the shaft 405, is fixed to the flange 403, allowing the slide to be deptosed along the shaft 405.
  • a yoke 487 is fixed to the slide 484 by means of two pivots 488 constituting a vertical axis of rotation.
  • This yoke carries a geared motor group 489 at the end of the shaft which is wedged a frustoconical felling tool 491.
  • a hydraulic motor 492 is fixed on the yoke 487 and actuates a pinion 493 which meshes with a toothed sector 494 secured to the slide 484.
  • a jack 495 has its body fixed to the arm 483 by means of a joint, and its rod 496 fixed, also by a joint, to a piece 497 for connection to the yoke 487.
  • the movements of the rod of this jack thus make it possible to rotate the slide 484 around the shaft 405. This movement is permitted in any axial position of the slide on the shaft, thanks to the articulated connections of the jack 495.
  • the yoke 487 is then made to rotate by means of the hydraulic motor 492 in an anti-clockwise direction to bring it into position 491, starting the cutting face, along F1 . It is noted that, during this evolution, the tool does not work by its angular edge, but by its lateral surface.
  • This operation is repeated at different levels, such as 491e and 491f ( Figure 17), so as to cut the entire front, by maneuvering the jack 495.
  • the transverse trees are placed at a fairly high level, normally in the upper half of the gallery, which frees up a large space for the evacuation of spoil.
  • the operations of pruning, supporting and removing the cuttings are carried out simultaneously and without interruption.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Shovels (AREA)
  • Earth Drilling (AREA)
  • Control Of Electric Motors In General (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Steroid Compounds (AREA)

Claims (20)

1. System zum Graben von unterirdischen Stollen, mit einem Abbauwerkzeug (31, 491), das an einem Gerüst (1, 401) angelenkt und so montiert ist, daß es in Richtung der Höhe der Abbaufront (S, F) bewegbar ist, wobei dieses Gerüst mit Mitteln zum Abstützen auf dem Boden und Vortriebsmitteln zur Mitbewegung mit dem Abbau versehen ist, dadurch gekennzeichnet, daß das Gerüst zwei Seitenplatten (2, 3 ; 102, 103 ; 402, 403) umfaßt, die jeweils auf einer der beweglichen Vorrichtungen (6, 7 ; 406, 407) zur Abstützung auf dem Boden des Stollens ruhen und miteinander verbunden sind durch eine vordere querverlaufende Schwenkwelle (5, 305, 405), welche das Abbauwerkzeug (31, 491) trägt, und durch eine hintere querverlaufende Schwenkwelle (4, 104, 404), welche drehbare Arme (14, 114, 414) trägt, wobei jeder dieser Arme mit einer der beweglichen Vorrichtungen (17, 117, 417) zur Abstützung an der Decke des Stollens gelenkig verbunden ist und die beiden Schwenkarme (5, 305, 405 ; 4, 104, 404) in der oberen Hälfte der Maschine angeordnet sind.
2. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß der Anlenkpunkt des Abbauwerkzeugs (231) an einem in bezug auf das Gerüst beweglichen Organ (268) liegt und in einer zur Vorschubrichtung im wesentlichen parallelen Richtung bewegbar ist.
3. Maschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die das Abbauwerkzeug tragende Schwenkwelle (305) in zwei Doppelkegellagern (371, 372) montiert ist, wovon das eine (372) feststehend und das andere (371) senkrecht bewegbar ist, um dem Abbauwerkzeug eine schräge Vorschubbewegung in einer vorbestimmten Richtung zu verleihen.
4. Maschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß jede Vorrichtung zur Abstützung an der Decke an dem Gerüst über zwei im wesentlichen rechtwinklige Drehachsen (18, 25) angelenkt ist.
5. Maschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß jede Vorrichtung zur Abstützung an der Decke mit einer die Abstützung 'gewährleistenden Hubvorrichtung (19, 119, 419) verbunden ist.
6. Maschine nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß jede Vorrichtung zur Abstützung an der Decke (17) ein Raupenfahrwerk (26) umfaßt.
7. Maschine nach Anspruch 6, dadurch gekennzeichnet, daß jedes Raupenfahrwerk wenigstens eine Raupenkette (26) umfaßt, die mit einer Führungsbahn (24) zusammenwirkt, welche mit einem Balken (16) über ein Doppelgelenk mit zwei im wesentlichen zueinander senkrechten Schwingachsen (27) verbunden ist.
8. Maschine nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Mittel zum Abstützen auf dem Boden zwei seitlich angeordnete Raupenfahrwerke (6, 7) umfassen.
9. Maschine nach Anspruch 8, dadurch gekennzeichnet, daß die Vorschubmittel ein Linearbewegungs-Antriebsorgan (48) umfassen, wovon ein feststehender Teil mit dem Gerüst verbunden ist und ein beweglicher Teil (49) mit einer Zahnstange zusammenwirkt, die in der Raupe (11) zur Abstützung auf dem Boden angebracht ist.
10. Maschine nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Raupenfahrwerke (11) mit einer Führungsbahn (9) zusammenwirken, welche mit dem Gerüst (1) über ein Doppelgelenk mit zwei im wesentlichen zueinander senkrechten Schwingachsen verbunden ist.
11. Maschine nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, daß das eine (7) der Raupenfahrwerke (6, 7) zur Abstützung auf dem Boden mit dem Gerüst über ein Gelenk (13) verbunden ist, dessen Achse im wesentlichen waagerecht und senkrecht zur Vorschubrichtung ist.
12. Maschine nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, daß das Gerüst (1) eine flache Strebe (52) umfaßt, die auf der Höhe der Raupenfahrwerke (6, 7) zur Abstützung auf dem Boden angeordnet und mit geneigten, anhebbaren Flächen (53) zum Erleichtern des Durchquerens versehen ist.
13. Maschine nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Vorrichtung zur Abstützung an der Decke wenigstens einen Gleitbalken (116) umfaßt, der an dem Gerüst (101) angelenkt und mit Kufen (117) versehen ist, um mit Trägern (166) zusammenzuwirken, die durch den genannten Balken gegen das Dach angelegt gehalten werden.
14. Maschine nach Anspruch 13, dadurch gekennzeichnet, daß der Gleitbalken (116) einziehbare Füße (167) zur Abstützung an der Decke und zur Befreiung der Träger (166) umfaßt, um diese bei jedem Vorschubschritt des Grabens vorwärts zu bewegen.
15. Maschine nach Anspruch 13 oder 14, dadurch gekennzeichnet, daß das Gerüst (101) Gleitkufen (161) zum Zusammenwirken mit Stützträgern (162) umfaßt, die seitlich auf den Boden aufgesetzt sind.
16. Maschine nach Anspruch 15, dadurch gekennzeichnet, daß die Vorschubmittel ein Linearbewegungsorgan (148) umfassen, wovon ein feststehender Teil mit dem Gerüst verbunden und ein beweglicher Teil (149) mit einem Stützträger (162) verbunden ist.
17. Maschine nach Anspruch 15 oder 16, dadurch gekennzeichnet, daß das Gerüst (101) einziehbare Füße (164) zur Abstützung auf dem Boden und zum Befreien der Stützträger (162) umfaßt, um diese bei jedem Vorschubschritt des Grabens vorwärts zu bewegen.
18. Maschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Vorrichtungen zur Abstützungen der Decke (417) schräg angeordnet sind, um sich an der Decke eines Stollens mit gekrümmtem Querschnitt abzustützen.
19. Maschine nach Anspruch 18, dadurch gekennzeichnet, daß das Abbauwerkzeug (491) einen mit Werkzeugen versehenen Kegelstumpf umfaßt, der am Ende der Welle (405) montiert ist, die mit dem Gerüst (401) durch ein Gelenk (484, 488) verbunden ist, welches Winkelbewegungen des Abbauwerkzeugs in zwei aufeinander im wesentlichen senkrechten Ebenen zulassen.
20. Maschine nach Anspruch 19, dadurch gekennzeichnet, daß die Gelenkverbindung (484) des Abbauwerkzeugs an dem Gerüst (401) auf einer im wesentlichen waagerechten Welle (405) des Gerüstes verschiebbar montiert ist.
EP80400890A 1979-06-21 1980-06-18 Maschine zum unterirdischen Streckenvortrieb Expired EP0021987B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400890T ATE4135T1 (de) 1979-06-21 1980-06-18 Maschine zum unterirdischen streckenvortrieb.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7915908A FR2459360B1 (fr) 1979-06-21 1979-06-21 Systeme pour creuser des galeries souterraines
FR7915908 1979-06-21

Publications (2)

Publication Number Publication Date
EP0021987A1 EP0021987A1 (de) 1981-01-07
EP0021987B1 true EP0021987B1 (de) 1983-07-13

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EP80400890A Expired EP0021987B1 (de) 1979-06-21 1980-06-18 Maschine zum unterirdischen Streckenvortrieb

Country Status (5)

Country Link
US (1) US4362337A (de)
EP (1) EP0021987B1 (de)
AT (1) ATE4135T1 (de)
DE (1) DE3064115D1 (de)
FR (1) FR2459360B1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT386051B (de) * 1985-01-29 1988-06-27 Voest Alpine Ag Streckenvortriebs- oder gewinnungsmaschine
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FR2459360B1 (fr) 1986-04-18
DE3064115D1 (en) 1983-08-18
ATE4135T1 (de) 1983-07-15
US4362337A (en) 1982-12-07
FR2459360A1 (fr) 1981-01-09
EP0021987A1 (de) 1981-01-07

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