EP3085886B1 - Grabwerkzeug für einen tunnelbohrer, sowie tunnelbohrer, der ein solches grabwerkzeug umfasst - Google Patents

Grabwerkzeug für einen tunnelbohrer, sowie tunnelbohrer, der ein solches grabwerkzeug umfasst Download PDF

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Publication number
EP3085886B1
EP3085886B1 EP16164220.2A EP16164220A EP3085886B1 EP 3085886 B1 EP3085886 B1 EP 3085886B1 EP 16164220 A EP16164220 A EP 16164220A EP 3085886 B1 EP3085886 B1 EP 3085886B1
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EP
European Patent Office
Prior art keywords
screw
mounting bracket
drag bit
excavating tool
tooth
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.)
Not-in-force
Application number
EP16164220.2A
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English (en)
French (fr)
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EP3085886A1 (de
Inventor
Salam MOUBARAK
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NFM Technologies SAS
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NFM Technologies SAS
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Publication date
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Priority to PL16164220T priority Critical patent/PL3085886T3/pl
Publication of EP3085886A1 publication Critical patent/EP3085886A1/de
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Publication of EP3085886B1 publication Critical patent/EP3085886B1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders
    • E21C35/193—Means for fixing picks or holders using bolts as main fixing elements
    • E21C35/1936—Means for fixing picks or holders using bolts as main fixing elements the picks having a square- or rectangular-section shank

Definitions

  • the present invention relates to a digging tool for a tunnel boring machine, and a tunnel boring machine comprising such a digging tool.
  • a tunnel boring machine otherwise known as tunneling machine, comprises a tubular casing in front of which is provided a shield whose outer diameter corresponds to the diameter of the dug tunnel.
  • the front part of the shield which comes into contact with the face to dig the terrain traversed by the tunneling machine, comprises a cutting head which is rotated on itself about an axis corresponding to the central longitudinal axis of the TBM.
  • the felling of the ground is obtained by the rotation of the cutting head and the simultaneous advance thereof generated by a strong thrust against the face of size.
  • the tunneling machine envelope is internally equipped with means for moving the TBM forward, a disposal system for the cuttings resulting from the felling of the ground and a laying device. of voussoirs inside the tunnel dug to gradually build a tube lining the inside of the tunnel.
  • the cutting head includes radial arms that support digging tools for felling the ground.
  • tools which rotate freely on themselves on a shaft integral with the cutting head and which are typically rollers rolling on the face to cut, tools which, in use, are provided fixed on the head cutting and attacking the face by scraping.
  • the invention is concerned with the latter digging tools, which conventionally include a digging tooth of the ground to dig, sometimes called a pick, plane or knife.
  • This tooth is subject, due to the geological nature of the terrain crossed, to heavy mechanical stresses and abrasion, so that it wears or even breaks and must be replaced periodically.
  • the tooth is mounted interchangeably on a dedicated support, fixed permanently, usually by welding, on the arms of the cutting head.
  • the tooth is retained on the support by removable fastening means, which must allow disassembly of the worn tooth and reassembly of a new tooth, both easy, using a portable tool and usual, and fast to prevent the tunnel boring machine from becoming too long.
  • removable fastening means must be adapted to the operating conditions of the digging tool, including the forces and shocks that the tool undergoes, as well as the presence of cuttings and water.
  • these fixing means must be provided to limit the constraints of use and minimize the weight of the tools to be handled by the operators having to carry out maintenance operations of the digging tool, in particular the replacement of his tooth: in fact, these operations are performed under difficult conditions for operators, from a room, often in overpressure, between the cutting head and a fixed vertical partition disposed behind this head.
  • a first solution which is the most widespread, is to fix the tooth to the support by several screws, for example four screws or more, which pass through a smooth bore of the tooth to be screwed into complementary threads of the support, to tighten the tooth against the support.
  • This solution has disadvantages. Indeed, the accessibility of the screw heads is delicate whereas these screws must be associated with washers and ideally tightened with the torque wrench, which involves long and tedious manipulations for the operator, with the risk of escaping or to lose the screws. In addition, these screws directly support most of the forces applied to the tooth. Furthermore, in the long run, the threads of the support tend to be damaged, because of the forces and the corrosion.
  • a second solution is to wedge the tooth on the support so that, in use, the forces applied to the tooth are essentially taken directly by the support, while providing for the release of the tooth vis-à-vis the support in at least one predetermined clearance direction.
  • a screw passes through both the tooth and the support and clamps them against each other by bringing a tightening nut to the opposite end of the screw at his head.
  • a third solution has been proposed by EP-1,253,286-A1 on which the preamble of the appended claim 1 is based.
  • the tooth is, in use, wedged on the support in all directions of the space except in a direction of disengagement.
  • a screw fixes the tooth to the support of detachably: in a mounted configuration of this digging tool, the threaded end of the screw is screwed into a tapping of the tooth, whose central axis is parallel or slightly inclined relative to the direction of disengagement, while the head of the screw is supported on a wall of the support through which the screw extends.
  • the screw is partially unscrewed, then it is necessary to move the tooth first in a first translational movement in the direction of release, then in a second movement translation in a direction perpendicular to this direction of release: the first movement allows only partially disengage the tooth vis-à-vis the support, the continuation of this first movement being impossible because of the interference, in the direction of release between the head of the screw and the aforementioned wall of the support.
  • the displacement of the tooth according to the second movement is due to the fact that the shank of the screw passes through the aforementioned wall of the support by a slot of this wall, this slot being oriented in the direction of the second translational movement and open at its end to let the rod out of the screw and thus allow the effective clearance of the tooth and screw vis-à-vis the support.
  • the successive implementation of the first and second movements mentioned above can be tricky, in particular for a manipulator robot.
  • the object of the present invention is to provide a digging tool of the type mentioned above, the mounting and fixing of the tooth are effective and fast, and particularly simple to implement, potentially automatically by a robot .
  • the invention relates to a digging tool for a tunnel boring machine, as defined in claim 1.
  • the fixing of the tooth on the support is carried out by at least one screw which, both when the tooth is mounted on the support and that the tool is thus in a state of service, when the tooth is disassembled vis-à-vis the support and that the tool is thus in a maintenance state for the purpose of repair or change of the tooth, is maintained physically secured to the tooth, remaining screwed into the tooth. There is therefore no risk of losing or escaping the screw during the handling of the tooth.
  • the passage of the tool according to the invention between its assembled and disassembled configurations is carried out by relative screwing-unscrewing between the screw and the tooth.
  • the screw bears little or almost no effort exerted by the ground on the tooth during the scraping action of the latter on the face of size: indeed , because of the direct engagement between the tooth and the support, in particular by wedging, these forces are taken up mostly, or even exclusively by the support, except in the direction of clearance of the tooth vis-à-vis the support, direction in which the screw ensures the locking of the tooth relative to the support by interfering with the latter.
  • the part of the forces applied precisely in this direction of disengagement is small, even marginal with respect to the set of efforts which, cumulatively, are exerted on the tooth, these forces being oriented in a very large number of directions , according to the asperities of the face of size and as and when the rotation of the cutting head.
  • the screw of the digging tool according to the invention can advantageously be dimensioned accordingly "a minimum” and be provided in one copy, which reinforces the ease of handling, while by guaranteeing the reliability of the digging tool in service.
  • the invention also relates to a tunnel boring machine, comprising a cutting head, and at least one digging tool, which is as defined above and whose support is fixed permanently to the cutting head.
  • FIG 1 is schematically represented a tunnel boring machine 1 whose tubular casing, with a substantially circular base, includes a front bumper comprising, in its front part, a cutting head 2 coming into contact with the face cut by the tunnel boring machine.
  • the cutting head 2 sometimes called the drilling head, is designed to be rotated on itself about an axis 2A corresponding substantially to the central longitudinal axis of the tubular casing of the tunnel boring machine 1.
  • TBM 1 is observed from the front and in the axis 2A, so that only its cutting head 2 is visible, the remainder of the TBM extending back and in the axial extension of the head.
  • the tunnel boring machine 1 digs a ground by cutting the latter under the action of the rotation of the cutting head 2 and the simultaneous advance of this head, generated by a strong thrust against the front of size.
  • the cutting head 2 comprises arms 3 extending radially to the axis 2A. These radial arms 3 delimit between them openings opening towards the rear of the head 2, in a felling chamber from which the cuttings torn from the face of the face by the head 2 are removed.
  • Each of the radial arms 3 carries digging tools 4 designed to cut the ground by scraping, one of these tools 4 being represented alone and on a larger scale on the Figures 2 to 8 .
  • each of the radial arms 3 also carries rollers 5, which rotate freely on themselves on a shaft integral with the arm and which, in use, roll on the face to cut it.
  • this description is oriented with respect to a spatial reference consisting of three geometric axes X, Y, Z, drawn on the Figures 2 to 4 and orthogonal to each other.
  • the Z axis is associated with the vertical, considering that its direction is directed upwards when it points towards the upper part of the Figures 2 to 6 while pointing downwards in the opposite direction.
  • the X and Y axes define a horizontal geometric plane, the X axis being associated with an anteroposterior direction which is oriented forward when it points to the right figures 2 and 4 to 6 while facing backwards in the opposite direction.
  • the digging tool 4 comprises or consists of three main components that are a support 10, a tooth 20 and a screw 30.
  • the support 10 includes a lower base 11 which, in its rear part, is surmounted by two branches 12 and 13.
  • the branches 12 and 13 are spaced from each other in the direction of the Y axis.
  • the rear of the base 11 is notched between the branches 12 and 13, and the entire spreading distance, along the Y axis between these branches.
  • the base 11 thus delimits an upper surface 11A, which is inscribed in a plane perpendicular to the Z axis and which, in the example considered in the figures, extends at the same time between the branches 12 and 13 and at the front of each of them.
  • the base 11 delimits a rear surface 11B, which is inscribed in a plane perpendicular to the X axis and which, in the example considered in the figures, extends between the branches 12 and 13.
  • the base 11 is designed to be fixed permanently to the cutting head 2, in particular to one of its radial arms 3, as in the example shown in FIG. figure 1 .
  • This final fixing is carried out by any appropriate means, for example by welding the lower face of the base 11 to a side edge of the arm 3 concerned.
  • the orientation of the support 10 relative to the arm concerned 3 or, more generally, with respect to the cutting head 2 is not limiting of the invention.
  • the branch 12 On its side facing the branch 13, the branch 12 delimits a lateral surface 12A, which is inscribed in a plane perpendicular to the Y axis and which, in the example considered in the figures, extends over the entire extent of the branch 12 along the X and Z axes.
  • the branch 13 On its side facing the branch 12, the branch 13 delimits a lateral surface 13A, which is inscribed in a plane perpendicular to the Y axis and which, in the example considered in the figures, extends over the entire extent of the branch 13 along the axes X and Z.
  • the lateral surfaces 12A and 13A are thus facing each other along the Y axis.
  • the branch 12 On its lateral side opposite its surface 12A, the branch 12 defines a housing 14 which is cylindrical, circular base and centered on an axis Y1 parallel to the Y axis.
  • the housing 14 is thus recessed in the lateral face of the branch 12, opposed to branch 13.
  • the branch 12 also delimits a slot 15 which, at the same time, connects the housing 14 to the upper face of the branch 12 along the Z axis and connects, along the Y axis, the bottom of the housing 14 to the lateral surface 12A of the branch 12.
  • This slot 15 has a smooth wall and has a width, that is to say a dimension along the axis X, which is strictly smaller than the diameter of the housing 14.
  • the branch 13 delimits for its part a through hole 16, with a smooth wall and connecting the lateral surface 13A to the lateral face of the branch 13, opposite the branch 12.
  • This through hole 16 extends along the axis Y, in being centered on the Y1 axis, as clearly visible on the Figures 7 and 8 .
  • branches 12 and 13 delimit respective front surfaces 12B and 13B, which are inscribed in the same plane perpendicular to the axis X and which, in the example considered in the figures, extend over an upper part of these branches .
  • the tooth 20 comprises a front head 21 extended rearwardly by a body 22, conferring on the tooth 20 a "T" shape when it is observed along the Z axis.
  • the head 21 On its front side, the head 21 is designed to attack the ground to dig, by scraping to pull cuttings. To this end, in a manner known per se and not limiting of the invention, the front of the head 21 is rigidly provided with inserts 23 of hard material, such as carbide, or, more generally, functionally resistant elements. similar in order to intensify the scraping action of the tooth 20 against the face of size.
  • hard material such as carbide, or, more generally, functionally resistant elements. similar in order to intensify the scraping action of the tooth 20 against the face of size.
  • the head 21 delimits, on either side, along the Y axis, the body 22, rear surfaces 21A and 21B, which are inscribed in the same plane perpendicular to the X axis and which, in the exemplary embodiment considered here, occupy the entire rear face of the head 21 outside the grip of the body 22.
  • the head 21 delimits, on its lower side, a lower surface 21C, which is inscribed in a plane perpendicular to the Z axis and which, in the embodiment considered here, occupies a front part of the lower face of the head.
  • the body 22 is provided at its rear end with a lower bead 24 which, at the junction with the rest of the body 22, forms a bend facing downwards.
  • the heel 24 thus delimits a front surface 24A, which is inscribed in a plane perpendicular to the X axis and which, in the embodiment considered here, extends over substantially the entire front face of the heel.
  • the body 22 delimits lateral surfaces 22A and 22B, opposite to each other along the axis Y, which are inscribed with each of the planes perpendicular to the axis Y and which, in the embodiment considered here, occupy substantially the entire extent of the corresponding lateral faces of the body 22.
  • the support 10 and the tooth 20 are shaped to be engaged with each other so as to block, with functional clearances, any relative movement between them except an upward movement along the Z axis of the tooth relative to the support.
  • the tooth 20 is designed to be mounted on the support 10 so that its body 22 is received between the branches 12 and 13 and its head 21 is received at the front of these branches while its heel 24 is received in the notch rear of the base 11.
  • the lower surface 21C of the head 21 is in plane contact against the upper surface 11A of the base 11 so that the tooth is wedged down along the axis Z relative to the support 10.
  • the distance, according to the X axis, between the rear surfaces 21A and 21B of the head 21 and the front surface 24A of the heel 24 is equal to a functional clearance by the distance, along the X axis, between the rear surface 11B of the base 11 and the front surfaces 12B and 13B of the branches 12 and 13: in the mounted state of the tooth 20 on the support 10, the surfaces 24A, 21A and 21B are, in the abovementioned clearance, in plane contact with the surfaces 11B respectively, 12B and 13B so that the tooth 20 and the support 10 are wedged relative to each other both forwardly and rearwardly along the X axis, as shown in FIGS. Figures 5 and 6 .
  • the dimension, along the Y axis, of the body 22 is equal, with a functional clearance close, to the spacing, along this axis Y, between the branches 12 and 13: in the mounted state of the tooth 20 on the support 10, the lateral surfaces 22A and 22B of the body 22 are, with the clearance mentioned above, in plane contact with respectively the lateral surfaces 12A and 13A of the branches 12 and 13 so that the tooth 20 and the support 10 are wedged with the relative to each other in the two opposite directions, extending along the Y axis.
  • the tooth 20 and the support 10 cooperate, in all directions of the space except upwards along the Z axis, by complementarity of shapes so as to to be fixedly connected to one another by wedging between the surfaces 21A, 21B, 21C, 22A, 22B and 24A and the surfaces 11A, 11B, 12A, 13A, 12B and 13B. It is also understood that to move the tooth 20 from the support 10 for the purpose of disassembling the tooth is only possible in a direction of clearance D, which is rectilinear and oriented in one direction, and which, in the example considered here and as indicated by an arrow on the figure 4 extends along the Z axis and is oriented upwards.
  • the body 22 of the tooth 20 defines a through hole 25 which extends along the Y axis, connecting the side surfaces 22A and 22B to one another.
  • This hole 25 is centered on an axis Y2 and is provided with a tapping 26 which, in the embodiment considered here, extends over the entire axial length of the hole 25.
  • the hole 25 extends in the extension, along the Y axis, of the housing 14 and the hole 16 of the branches 12 and 13, the axes Y1 and Y2 then being substantially merged, as shown in FIGS. Figures 7 and 8 .
  • the thread 34 of the screw 30 is complementary to the tapping 26 of the tooth 20, so that, as shown in FIG. figure 4 , the hole 25 of the tooth 20 is designed to movably receive the screw 30, by screwing-unscrewing between the thread 34 and the tapping 26, the Y2 and Y3 axes then being merged.
  • the screw 30 is movable relative to the tooth along the Y axis, by means of its drive in rotation on itself.
  • the screw 30 is provided to fix the tooth 20 to the support 10, not in the sense that this screw 30 rigidly binds the tooth 20 and the support 10 together by transmitting the forces between them in all directions, but in the sense that the screw 30 is designed to lock the tooth 20 relative to the support 10 only in the disengagement direction D, thus locking the mounted state of the tooth 20 on the support 10.
  • the head 31 of the screw 30 is designed to be received inside the housing 14, the latter being provided complementary to the head 31, and the pin 32 of the screw 30 is designed to be received in the hole 16, the latter being provided complementary to the pin 32: by complementarity of shapes between, on the one hand, the head 31 and the housing 14 and, on the other hand, the pin 32 and the hole 16, to near functional play, the screw 30 is in potential interference with the support in all the radial directions to the axes Y1 and Y3 then substantially merged.
  • the screw mechanically interferes with the support 10 only in the disengagement direction D, i.e. upwardly along the axis Z, this interference in the direction of clearance D being moreover exclusively between the screw and the support in the sense that, in this direction of clearance D, the support and the tooth are not in direct connection with each other.
  • the screw 30 is, by driving its head 21 with the aid of a tool ad hoc not shown, unscrewed vis-à-vis the tooth 20 so as to leave, along the Y axis, the head 31 of the 14 and the pin 32 of the hole 16. This unscrewing of the screw 30 is continued until the entire head 31 of the housing 14 and the pin 32 of the hole 16, as shown in FIG. figure 8 , without extracting the screw 30 from the tapped hole 25 of the tooth 20, while keeping a portion of the thread 34 engaged with a portion of the thread 26.
  • the tooth 20 and the screw 30 can then be jointly disengaged completely from the support 10, by being driven, manually or by appropriate tooling, upwards along the Z axis, that is, only in the disengagement direction D, as shown in FIG. figure 4 .
  • the screw 30 does not block the relative clearance between the support 10 and the assembly consisting of the tooth and the screw 30, the latter must not interfere with the support 10 in the disengagement direction D, this which passes through an ad hoc dimensioning of its slot 15, the width of this slot, that is to say its dimension along the X axis, being greater, at least to a functional clearance, to the diameter of the rod 33 , as clearly visible on the figure 5 .
  • the passage of the tool 4 from the disassembled configuration to the mounted configuration is done in a manner that is the opposite of what has been described for the transition from the assembled configuration to the disassembled configuration, by means of, successively, the complete assembly of the together, consisting of the tooth 20 and the screw 30, on the support 10 by driving this assembly only in a direction opposite to the direction of clearance D, then the screwing of the screw 30, until complete penetration of its 31 in the housing 14 and its pin 32 in the hole 16. In practice, this screwing is implemented until abutting, along the Y axis, the head 31 against the bottom of the housing 14.
  • the passage of the digging tool 4 between its mounted and dismounted configurations is achieved simply by screwing-unscrewing the screw 30, while keeping it integral with the tooth 20: the corresponding manipulations are quick and easy to implement, if necessary automatically by a manipulator robot, without running the risk of losing the screw.
  • the complete clearance, vis-à-vis the support 10, of the tooth 20 and the screw 30 which remains partially aimed therein, just like the assembly on the support of this assembly consisting of the tooth and the screw, are made by driving this assembly exclusively parallel to the disengagement direction D, respectively in the direction of this direction of disengagement and in the opposite direction: the manipulations
  • they are quick and easy to implement, if necessary automatically by a manipulator robot.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
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Claims (10)

  1. Aushebewerkzeug (4) für eine Tunnelbohrmaschine (1), Folgendes aufweisend:
    - einen Angriffszahn (20) für das auszuhebende Gelände,
    - eine Montagehalterung (10) für den Zahn, wobei die Halterung dazu vorgesehen ist, dauerhaft an einem Fräskopf (2) der Tunnelbohrmaschine befestigt zu sein, wobei die Halterung und der Zahn dazu angepasst sind, miteinander in Eingriff gebracht zu werden, um den Zahn fest mit der Halterung in allen Raumrichtungen, außer in einer Freigaberichtung (D), zu verbinden, und
    - eine Schraube (30) zur lösbaren Befestigung des Zahns an der Halterung, wobei die Schraube mit einem Gewinde (34) versehen ist, das in ein Innengewinde (26) des Zahns eingeschraubt ist, wobei die Freigaberichtung (D) quer zur Mittelachse (Y2) dieses Innengewindes ist,
    wobei in einer montierten Auslegung des Aushebewerkzeugs (4) der Zahn (20) in den anderen Richtungen als der Freigaberichtung (D) in direktem mechanischem Eingriff mit der Halterung (10) steht, und die Schraube (30) eine Behinderung für die Halterung in der Freigaberichtung (D) bildet, um den Zahn in Bezug auf die Halterung zu blockieren,
    dadurch gekennzeichnet, dass das Innengewinde (26) des Zahns (20) und das Gewinde (34) der Schraube (30) dazu konzipiert sind, durch Verschrauben-Abschrauben den Zahn und die Schraube fest miteinander verbunden zu halten und dabei das Aushebewerkzeug (4) zwischen der montierten Auslegung und einer demontierten Auslegung übergehen zu lassen, in der die Schraube keine Behinderung für die Halterung (10) in der Freigaberichtung (D) bildet, so dass durch einen Antrieb nur in der Freigaberichtung, der Zahn und die Schraube von der Halterung gelöst sind, während durch einen Antrieb nur in einer Richtung, die zur Freigaberichtung entgegengesetzt ist, der Zahn und die Schraube an der Halterung montiert sind.
  2. Aushebewerkzeug nach Anspruch 1, dadurch gekennzeichnet, dass sich das Gewinde (34) der Schraube (30) im gängigen Teil (30C) der Schraube befindet.
  3. Aushebewerkzeug nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass in der montierten Auslegung des Aushebewerkzeugs (4) die Schraube (30) eine Behinderung für die Halterung (10) in der Freigaberichtung (D) im Bereich der zwei entgegengesetzten Längsenden (30A, 30B) der Schaube bildet.
  4. Aushebewerkzeug nach Anspruch 3, dadurch gekennzeichnet, dass ein erstes (30A) der zwei Enden der Schaube (30) einen Kopf (31) zum Antrieb der Schraube zum Verschrauben-Abschrauben in Bezug auf das Innengewinde (26) des Zahns (20) bildet, wobei dieser Kopf mit dem zweiten Ende (30B) der Schraube über einen Schaft (33) der Schraube verbunden ist, dessen Durchmesser strikt kleiner ist als derjenige des Kopfs, und
    dass die Halterung (10) eine Aufnahme (14) begrenzt:
    - in deren Inneres der Kopf (31) der Schraube (30) in der montierten Auslegung des Aushebewerkzeugs (4) auf komplementäre Weise aufgenommen ist,
    - aus welcher der Kopf der Schraube beim Abschrauben der Schraube in Gänze austritt, um das Aushebewerkzeug von seiner montierten Auslegung in seine demontierte Auslegung übergehen zu lassen, und
    - die mit einer Außenseite der Halterung (10) in der Freigaberichtung (D) durch einen Schlitz (15) der Halterung verbunden ist, dessen Breite gleichzeitig kleiner als der Durchmesser des Kopfs (31) der Schraube (30) und größer als der Durchmesser des Schafts (33) der Schraube ist.
  5. Aushebewerkzeug nach Anspruch 4, dadurch gekennzeichnet, dass der Schlitz (15) der Halterung (10) die Aufnahme (14) ferner mit einer durch die Halterung begrenzten Oberfläche (12A) zum Verklemmen des Zahns (20) in einer zur Mittelachse (Y2) des Innengewindes (26) parallelen Richtung verbindet.
  6. Aushebewerkzeug nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass das zweite Ende (30B) der Schraube (30) einen glatten Zapfen (32) bildet, und dass die Halterung (10) eine glatte Öffnung (16) begrenzt, in deren Inneres der Zapfen (32) der Schraube (30) in der montierten Auslegung des Aushebewerkzeugs (4) auf komplementäre Weise aufgenommen ist, und aus welcher der Zapfen der Schraube beim Abschrauben der Schraube in Gänze austritt, um das Aushebewerkzeug von seiner montierten Auslegung in seine demontierte Auslegung übergehen zu lassen.
  7. Aushebewerkzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in der montierten Auslegung des Aushebewerkzeugs (4) der Zahn (20) und die Halterung (10) in den anderen Richtungen als der Freigaberichtung (D) miteinander durch einen Kontakt zwischen jeweils durch den Zahn und die Halterung begrenzte Klemmflächen (11A, 11B, 12A, 12B, 13A, 13B, 21A, 21B, 21C, 22A, 22B, 24A) miteinander in mechanischem Eingriff stehen.
  8. Aushebewerkzeug nach Anspruch 7, dadurch gekennzeichnet, dass die Klemmflächen aufweisen:
    - eine Fläche (21C) des Zahns (20) und eine Fläche (11A) der Halterung (10), die in der montierten Auslegung des Aushebewerkzeugs (4) miteinander in Kontakt sind, um den Zahn in Bezug auf die Halterung in der zur Freigaberichtung (D) entgegengesetzten Richtung zu verklemmen,
    - Flächen (22A, 22B) des Zahns (20) und Flächen (12A, 13A) der Halterung (10), die in der montierten Auslegung des Aushebewerkzeugs miteinander in Kontakt sind, um den Zahn und die Halterung in Bezug aufeinander in den zueinander entgegengesetzten Richtungen zu verklemmen, die parallel zur Mittelachse (Y2) des Innengewindes (26) sind, und
    - Flächen (21A, 21B, 24A) des Zahns (20) und Flächen (12B, 13B, 11B) der Halterung (10), die in der montierten Auslegung des Aushebewerkzeugs miteinander in Kontakt sind, um den Zahn und die Halterung in Bezug aufeinander in den zueinander entgegengesetzten Richtungen zu verklemmen, die gleichzeitig zur Freigaberichtung (D) und zur Mittelachse (Y2) des Innengewindes (26) senkrecht sind.
  9. Aushebewerkzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schraube (30) in einem einzigen Exemplar vorgesehen ist, und dass das Aushebewerkzeug (4) außer dieser einzigen Schraube frei von jedem anderen Mittel zur Befestigung des Zahns (20) an der Halterung (10) ist.
  10. Tunnelbohrmaschine (1), Folgendes aufweisend:
    - einen Fräskopf (2), und
    - mindestens ein Aushebewerkzeug (4) nach einem der vorhergehenden Ansprüche, dessen Halterung (10) dauerhaft am Fräskopf (2) befestigt ist.
EP16164220.2A 2015-04-08 2016-04-07 Grabwerkzeug für einen tunnelbohrer, sowie tunnelbohrer, der ein solches grabwerkzeug umfasst Not-in-force EP3085886B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16164220T PL3085886T3 (pl) 2015-04-08 2016-04-07 Narzędzie drążące dla kombajnu chodnikowego, jak również kombajn chodnikowy zawierający to narzędzie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1553007A FR3034806A1 (fr) 2015-04-08 2015-04-08 Outil de creusement pour un tunnelier, ainsi que tunnelier comprenant un tel outil

Publications (2)

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EP3085886A1 EP3085886A1 (de) 2016-10-26
EP3085886B1 true EP3085886B1 (de) 2018-01-03

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EP (1) EP3085886B1 (de)
CN (1) CN106050253A (de)
AU (1) AU2016202062B1 (de)
DK (1) DK3085886T3 (de)
ES (1) ES2664424T3 (de)
FR (1) FR3034806A1 (de)
NO (1) NO3085886T3 (de)
PL (1) PL3085886T3 (de)
SG (1) SG10201602756VA (de)

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CN112177623A (zh) * 2020-09-27 2021-01-05 中铁隧道局集团有限公司 一种不同富水破碎程度地层隧道tbm分级施工方法
CN112593963B (zh) * 2020-12-07 2024-06-04 安徽唐兴装备科技股份有限公司 一种可刮土的滚刀刀盘
CN113021392B (zh) * 2021-03-26 2022-04-22 中煤科工集团重庆研究院有限公司 一种矿用内置活塞式机械爪
CN112983449B (zh) * 2021-04-19 2022-06-07 中国铁建重工集团股份有限公司 一种刀盘和基于钻爆施工的全断面硬岩掘进机及破岩方法
CN113431598A (zh) * 2021-08-09 2021-09-24 太原理工大学 一种具有新型刀具安装方式的小直径刀盘及隧道掘进机

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GB218065A (en) * 1923-05-09 1924-07-03 Arthur James Wilkinson Improvements in or relating to coal cutting machines
FR2823793B1 (fr) * 2001-04-24 2004-01-30 Nfm Tech Dispositif de fixation d'un outil de travail sur une machine de creusement ou de ramassage de deblais ou de minerais
AT504281B1 (de) * 2006-09-20 2010-08-15 Voest Alpine Bergtechnik Vollschnittstreckenvortriebsmaschine
EP2845997A1 (de) * 2013-09-06 2015-03-11 Sandvik Intellectual Property AB Schneidmeißelhalteanordnung
CN203756178U (zh) * 2013-12-26 2014-08-06 江苏凯宫隧道机械有限公司 一种刀盘以及盾构机
CN103742135B (zh) * 2014-01-15 2016-09-07 上海安运输送设备有限公司 矿用全断面矩形快速掘进机

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NO3085886T3 (de) 2018-06-02
DK3085886T3 (en) 2018-03-12
PL3085886T3 (pl) 2018-05-30
EP3085886A1 (de) 2016-10-26
CN106050253A (zh) 2016-10-26
SG10201602756VA (en) 2016-11-29
ES2664424T3 (es) 2018-04-19
AU2016202062B1 (en) 2016-06-16
FR3034806A1 (fr) 2016-10-14

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