EP0793765B1 - Travelling tunneling machine - Google Patents

Abstract

PCT No. PCT/AT95/00233 Sec. 371 Date May 28, 1997 Sec. 102(e) Date May 28, 1997 PCT Filed Nov. 28, 1995 PCT Pub. No. WO96/17155 PCT Pub. Date Jun. 6, 1996A displaceable mining machine (1) comprises roof bolt drilling and setting apparatus (5, 13). A conveyor (6) is articulately pivotable in a rear portion of the machine about axes (16, 16') in order to provide space for a roof bolt drilling and setting apparatus (13) pivotable via an articulated arm (12) and operating behind the mining machine (1).

Description

The invention relates to a movable tunnel boring machine with movably connected to this Anchor drilling and setting device which is outside the outline the top view of the tunneling machine can be positioned and between The roof and sole can be tensioned, the tunnel boring machine with conveyors with a transfer point behind the chassis of the tunnel boring machine is equipped.

When driving on routes is to protect the mountains adhere to a specific anchor pattern. To this end it is known outside the outline of a top view Line boring machine or cutting machine anchor drilling and -positioning devices, in particular, if fragile slopes are to be feared this anchorage should be made as close as possible to the undeveloped or unsecured area as short as possible hold. Such anchor drilling and setting devices can with connected to the cutting machine or the tunnel boring machine to be the desired position near the working face to ensure at predetermined intervals to the face. Such devices are for example in AT-PS 392 119, in which the anchor drilling and -setters articulated to the cutting machine are hydraulic and between the roof and the bottom of the track are braced. Another form of articulated connection of anchor drilling and setting equipment with one Track boring machine is, for example, DE-A1 33 34 975. In this known training are Anchor drilling and setting devices with articulated arms on the side connected to a tunnel boring machine and can between The roof and sole can be tensioned. With such a facility a largely parallel work is possible because it here the respective positioning drive is sufficient for the Setting the correct position of the anchor drilling and setting devices disengage to freedom of movement ensure the articulated arm relative to the cutting machine, the anchor drilling and setting devices after Tension between the roof and sole secured in your chosen Position remain, so that correspondingly precise anchor holes can be achieved.

GB-A 2 232 429, which is the closest prior art is considered, a track jacking machine describes the is equipped with an anchor drilling and setting device. The discharge means assigned behind the tunnel boring machine prevents center anchors in a simple manner immediately to sit behind the face.

With all the known facilities, which essentially So far, it should have been possible to work in parallel always been possible outside the outline of the top view on the tunneling machine and especially laterally outside to set this outline anchor holes if these are close to the Face to be made. Especially with tunnel boring machines or cutting machines with relatively wide Scraping rolls is now the distance between such lateral ones Anchor holes relatively large and to protect the mountains additional holes must be arranged in the center around one so-called center anchor. Such center anchors can in the previously known facilities only with separate Anchor drilling and setting equipment at a great distance behind the Line boring machine can be arranged and a parallel or largely automated operation, which immediately the progress of the route can be done with the known facilities cannot be achieved.

The invention is now aimed at a device of the beginning to create the type mentioned, with which additionally the setting a center anchor as short as possible from the face is possible at precisely defined intervals. Aims in particular the invention is based on such a positioning near the Facility possible even if the machine has one has a central central conveyor. To solve this task there is the anchor drilling and setting device of the type mentioned essentially in that the removal means a transverse one near the rear end of the tunneling machine to the machine longitudinal axis running first swivel axis and in Distance behind this first pivot axis by a second Swivel axis designed to be pivotable is and that at least one anchor drilling and setting device via a swivel arm in the rear area of the tunneling machine connected to the same and in a position in the extended longitudinal central axis of the tunneling machine is pivotable. Because the immediate middle area behind the tunneling machine, which with conventional Devices is interspersed with the discharge device Swiveling the discharge device around a first pivot axis can be made free, it becomes possible with the Cutting machine or the tunnel boring machine with advanced Anchor drilling and setting device in this now to position the vacated area exactly. Because that Abfördermittel has a second pivot axis, is a Flexibility ensured which conventional further removal means can be used immediately without modifications makes, because after another bend again in essentially the original position for the transfer point can be achieved and by the double unwindability of the Conveyor means only the space required for positioning an additional anchor drilling and setting device in the extended tunneling machine longitudinal axis shall be. In this way, a center anchor can be used immediately be placed behind the tunneling machine and it can due to the given geometry, for example the support system of the tunneling machine coupled Anchor drilling and setting devices an exact geometric Coordination of the drilling distances can be ensured. The in rear area of the tunneling machine arranged additional Anchor drilling and setting device complements that in the machine support integrated anchor drilling and setting devices the corresponding ones outside the central tunneling machine axis Place anchor directly behind the loading device can. According to the invention, the training is advantageous so taken that the swivel arm of the rear anchor drilling and - Setting device as an articulated arm with two parallel to each other Axles pivotable arms is formed, such two-joint design enables exact positioning and at the same time, it also offers the possibility of downstream Anchor drilling and setting device for the center anchor from Decouple vibrations and movements of the machine. Of the required space for handling the anchor drilling and - Setting device in the middle of the line is by the corresponding articulated design of the removal means of the stretching machine ensured.

According to an advantageous development, the training is like this hit that the articulated arm for the rear anchor drilling and -setting device is dimensioned so that the length spacing of the Anchor bores in the machine longitudinal direction to near the face working anchor drilling and setting device an even number Multiples of the distance between adjacent holes outside corresponds to the machine longitudinal axis. Such training allows the center anchor to be aligned in the connecting line between two lateral ones at the same height Arrange anchor holes so that warping elements or ridge caps can be attached in a simple manner.

To ensure that the discharge means in the desired Way with conventional subsequent funding in the Training can work together, the training is advantageous hit that the first and the second pivot axis of the conveyor run essentially parallel to each other. A raise of the conveyor in the rear area of the machine this training even in an angled position individual sections in the rear end area of the conveyor desired drop height at the transfer point, with advantage the training is made so that the first pivot axis load-bearing end part of the conveyor on the tunneling machine adjustable in height and about a substantially parallel axis is pivotally supported in order to set this discharge height exactly.

The angularity or articulation of the conveying means, which is connected to the cutting or tunneling machine has in addition to the advantage that the corresponding space for placing a center anchor also creates the advantage that the transfer position to subsequent line funding can be set exactly. Training is an advantage for this so that the second pivot axis to Part of the conveyor facing the transfer point carries a support wheel, which is movable in the direction of pivotability, wherein preferably the transfer section of the conveyor via a Travel drive of the support wheel is pivotally driven.

As a rule, when driving a route, only either Left or right branches are provided, the divided swiveling conveyors directly connected to the machine be preset accordingly, for which advantage the training is taken so that the swivel angle between the area of the conveyor lying on both swivel axes Machine longitudinal axis is rigidly set during operation. Depending on preselected pivot position of the first section of the stretching machine the cantilever or Articulated arm for the rear anchor drilling and setting device either articulated on the left and / or right rear side of the machine be. In the case of two brackets, an anchor pattern can be used two anchors are formed near the linear discharge conveyor will.

The use of jockey wheels makes it particularly easy The height of the last section of the conveyor is adjustable train what it is sufficient for the height adjustable chassis with this last section of the discharge device to connect the tunnel boring machine.

To the area of application of the anchor drilling and setting device in to a large extent, the swiveling arm (s) are of the articulated arm advantageously designed as a telescopic arm (s). The extendable articulated arms also extend from the tunneling machine reached more distant areas of the tunnel, which results in greater stability, especially with the Achieve the use of fewer anchor drilling and setting devices leaves.

The versatility of the anchor drilling and setting device can can advantageously be increased in that the anchor drilling and setting device can be swiveled into a horizontal position using a rollover is connected to the swivel arm. In contrast to anchor drilling and setting devices, which in their vertical The position cannot be changed due to the vertical pivotability in a horizontal position as required without any conversion work created the possibility of the discharge device running towards the end of the tunnel to pass through horizontal pivoting. After completing the horizontal swivel process, the Anchor drilling and setting device back into the vertical position be brought for further work. By the possibility the anchor drilling and setting device in the horizontal to tilt and swivel below the conveyor, can in addition to the optimal choice of working position to ensure security and stability also mobility overall of the tunnel boring machine. This will make a the only one that can be pivoted in the middle of the rear end of the tunneling machine supported arm can be used for any position.

In order to cover a particularly large swivel angle range, the coupling point between the swivel arm and the rear area of the Advancing machine advantageously designed so that one at a Swivel arm articulated swivel gear with an rear area of the jacking machine articulated cylinder piston unit cooperates and that the swivel angle range of Swivel arm behind the tunneling machine is approximately 180 °. By engaging a swivel gear on the swivel arm side is in cooperation with the cylinder piston unit created a transmission through which there is a large swivel range can be achieved. Such a swivel gear construction enables a very small dome To be carried out in a compact form, so that even a small one Adjustment of the cylinder piston unit a large swivel angle the anchor drilling and setting device.

The compactness of the anchor drilling and setting device in the horizontal Parking and swivel position is according to a special preferred embodiment such that the anchor drilling and setting device about a vertical axis provided on the rollover is pivotable at the rear end of the swivel arm. With help a horizontally pivoted anchor drilling and setting device it is swung horizontally before swiveling Level and in a position closer to the tunneling machine brought. The fact that in a first step Fold the anchor drilling and setting device in the direction of Propulsion machine happens, on the one hand, by this Weight shift better leverage for the following Step, i.e. the vertical pivoting into the horizontal Swivel system in the rear area of the tunneling machine achieve. On the other hand, it is in the horizontal swivel position the total length of the tunneling machine seen as a whole reduced, which makes the unit of swivel arm and tilted Anchor drilling and setting device becomes more compact and shorter.

In a further advantageous embodiment, the anchor drilling hole takes - Setting device with the rollover opposite the swivel arm a position so that the rollover is in the starting position for vertical swiveling onto one provided on the swivel arm Bearing is supported. By having the rollover on a like is always supported, the connection to Anchor drilling and setting device relieved. Such a seat again ensures better absorption of leverage, which is precisely due to the dynamic Shares will be reinforced.

In order to further increase the maneuverability of the tunneling machine, the swivel arm is designed so that at least one of the swiveling arms of the swivel arm via a hydraulic cylinder piston unit is vertically pivotable. With the help of a vertical swiveling of the swiveling arms becomes a largely uninterrupted movement of the tunneling machine also ensured if unevenness in the floor, e.g. Troughs that have to be passed. As a result, manipulation the vertical swivel arm inclination always on the ground conditions be turned off.

The anchor drilling and -setting device via the swivel arm so on the tunneling machine articulated that the swivel arm laterally outside the longitudinal median plane is articulated on the tunneling machine. To this Way laterally attached anchor drilling and setting devices are either used in the rear area or as additional Devices for setting additional anchors, for example in the Elm area, usable. The lateral attachment of the Swivel arms allow very far to the side To reach positions.

The invention is described schematically below with reference to the drawing illustrated embodiments explained in more detail. In 1 shows a top view of a first embodiment the device according to the invention, Fig. 2 is a modified Formation of a device according to FIG. 1 in another Position of the cutting roller relative to the machine frame and FIG. 3 a top view of the route with an anchor pattern like it can be achieved by the device according to the invention, FIG. 4 a transverse view of the section from the rear end of the tunneling machine to the anchor drilling and setting device in the working position, 5 is a plan view of the device of FIG. 4, Fig. 6 shows the position of the anchor drilling and setting device for vertical pivoting takes place according to the perspective in FIG. 4 and FIG. 7 is a top view of FIG. 6 according to the perspective of FIG 5 for the situation in FIG. 6.

1 shows a tunnel boring machine 1. Of the Machine frame 2 has a crawler track 3. With the Machine frames 2 are with lateral machine supports 4 Anchor drilling and setting devices 5 connected. In the middle of Machine frame 2 is a central conveyor in Machine longitudinal direction supported slidably. The Longitudinal cutting machine direction is designated 7 and also the cutter arm 8, which carries a cutter roller 9 is in Longitudinal machine direction, i.e. in the direction of the central axis 7 slidably mounted. With 10 are the schematic Conveying stars of the loading device indicated. In the back The area of the machine frame 2 can be pivoted about an axis 11 an articulated arm 12 articulated, at its free end another Anchor drilling and setting device 13 is provided. Of the Articulated arm 12 is parallel to a first pivot axis 11 Swivel axis 14 can be swiveled and there is a swivel drive 15 provided so that the anchor drilling and setting device 13 in the extended line machine longitudinal axis 7 are moved into it can. To free up the necessary space for this, the Abförderer 6 designed to be angled, and it is a first Swivel axis 15 and a second substantially to the first Pivot axis 15 parallel pivot axis 16 is provided, whereby the discharge end 17 of the conveyor in turn in the appropriate position pivoted for transfer to subsequent line funding can be. The pivotability around the two Axes 15 and 16 create the necessary space for the setting of a center bolt.

In the embodiment according to FIG. 2 there is also a swivel drive cylinder 18 provided over which the pivotable portion 19 of the conveyor 6 can be swung out to the side the space required for the anchor drilling and setting device 13 to release. In addition, there is a hydraulic cylinder piston unit 20 for the swivel drive of the articulated arms of the boom 12 can be seen.

To position the transfer point 17 on subsequent A schematic diagram can be used to enable distance funding indicated support wheel 21 use, which with a Drive 22 can be connected. The pivoting of the back Section 23 of the conveyor 6 to achieve a suitable Alternatively, the transfer position can be via a hydraulic one Cylinder-piston unit 24 are made.

2, the conveyor 6 is relative to Machine frame 2 to the rear in the machine longitudinal direction, i.e. in Moved direction of the longitudinal axis 7 of the cutting machine, whereby for the cutting operation with appropriate anchoring of the anchor hole -setting devices 5 and stationary position of the crawler track 3 or the machine frame 2 of the cutter arm in Cutting machine longitudinal direction extended together with the roller can be. The distance between those of the anchor drilling and -Setting devices 5 anchors placed around the behind the cutting machine set center anchor, such as that of the anchor drilling and setting device 13 can be set, is schematic here indicated with a and corresponds to an integer multiple the anchor row spacing, with stationary positioning of the cutting machine base frame 2 here an exact work over a longer period of time is possible without the advance work is affected. Even with a length shift of the conveyor 6, the design is geometrically designed so that the articulated arm 12 for the anchor drilling and setting device 13 is not hindered.

3 is a schematic pattern for setting anchors evident. The respective position of the anchor drilling and setting devices 5 and 13 allows that between outside Anchors 26 on the connecting line between these two anchors in each case a central anchor 27 can be set, like this is shown schematically in Fig. 3.

4 and 5 there is the anchor drilling and setting device 13 in its working position at the end of the joint or Swivel arm 12, which as a telescopic arm in length a cylinder piston unit, not shown, is changeable. With the help of a further cylinder piston unit 28, the Swivel arm 12 vertically around the swivel 29 of the bearing part 30 for vertical swiveling of the swivel arm. The pivot arm 12 is about the axis 11 via this bearing part 30 horizontally pivotable at the rear end of the machine frame 2 of the tunneling machine. Around the swivel position of the anchor drilling adjustment and setting device over a wide range, is a simple horizontal on the bearing part 30 about the axis 31 Acting swivel gear in the form of a tab 32 pivoted, which at its other end via the swivel 33 is connected to the cylinder piston unit 34. The cylinder-piston unit 34 is in turn on the machine frame the tunneling machine articulated on the axis 35, by the Adjustment by interacting with the tab 32 and the bearing part 30 of the desired swivel angle of the swivel arm can be adjusted. From the top view of the anchor drilling and 5, the setting device results in the description of the function further details, the reference numerals being uniform were retained. Here is the top view can be seen how the adjustment of the cylinder-piston unit 34th the swivel angle setting via the tab 32 and the bearing part 30 the swivel arm 12 in the direction of arrow 36 causes becomes. Through the lateral attachment of the tab 32 on the bearing part 30 subsequently engages around the curved tab 32 Axis 11 with maximum piston travel and largest swivel angle, the cylinder-piston unit 34 with the swivel arm 12, the Swinging axis 11 over the tab 32, one pointed Forms an angle. With this arrangement, the minimum Piston adjustment a large swivel angle range against the Direction of the arrow reached, in which position the Tab 32 with the extended longitudinal axis of the cylinder-piston unit 34 is aligned. To stabilize the Adjustment paths can also be seen a support arm 37, the one end about the axis 33 with the cylinder piston unit in Connection is established and its other end at the rear of the Machine frame is pivotable about the axis 38. Furthermore is Fig. 5, the anchor drilling and setting device 13 in the working position can be seen, the pivot arm 12 in the middle of the tunneling machine 2 is articulated and the anchor drilling and setting device 13 upright about the rollover axis 39 so that it cannot rotate stands. With the help of the cylinder piston unit 40, the storage 43 of the rollover and related to it Anchor drilling and setting device from the working position towards arrow 41 about axis 42 into a pivoting position 6 and FIG. 7 brought.

From Fig. 7 it can be seen how the rollover axis 39 on a Bearing not shown transversely to the longitudinal axis of the swivel arm aligned and now for vertical pivoting of the Anchor drilling and setting device in the direction of arrow 42 according to Fig. 6 ready in the middle of the swivel arm 12 with this in Connection is established.

Claims (15)

1. A travelling mining machine (1) having a roof bolt drilling and setting device (5, 13) connected so as to be movable relative to the same, which roof bolt drilling and setting device is positionable outside the contour of the top view on the mining machine and braceable between roof and floor, wherein said mining machine is equipped with conveyor means (6) having a delivery site behind the travelling mechanism of the mining machine (1), characterized in that the conveyor means (6) near the rear end of the mining machine (1) is designed to be pivotable about a first pivot axis (15) extending transverse to the longitudinal axis (7) of the machine and about a second pivot axis (16) at a distance behind said first pivot axis (15) and that at least one roof bolt drilling and setting device (13) is connected with the mining machine (1) in the rear region of the same via a pivot arm (12) and pivotable into a position in the extended longitudinal central axis (7) of the mining machine (1).
2. A mining machine according to claim 1, characterized in that the pivot arm of the rear roof bolt drilling and setting device (13) is designed as an articulated arm (12) comprising two arms pivotable about parallel axes (11, 14).
3. A mining machine according to claim 1 or 2, characterized in that the articulated arm (12) for the rear roof bolt drilling and setting device (13) is dimensioned such that the longitudinal distance (a) of the bolt holes relative to the roof bolt drilling and setting device (5) operating near the mine face in the longitudinal direction (7) of the machine corresponds to an even-numbered multiple of the longitudinal distance of neighbouring bores (26) outside the longitudinal axis (7) of the machine.
4. A mining machine according to claim 1, 2 or 3, characterized in that the first (15) and second (16) pivot axes of the conveyor means (6) extend substantially parallel with each other.
5. A mining machine according to any one of claims 1 to 4, characterized in that the conveyor means (6) end part (19) carrying the first pivot axis (15) is supported on the mining machine (1) so as to be adjustable in height and pivotable about an axis extending substantially parallel to the floor.
6. A mining machine according to any one of claims 1 to 5, characterized in that the conveyor means (6) part (23) on the second pivot axis (16), which is oriented toward the delivery site (17), carries a support wheel (21) displaceable in the direction of pivotability.
7. A mining machine according to any one of claims 1 to 6, characterized in that the delivery portion (23) of the conveyor means (6) is pivotably driven by means of a travelling mechanism (22) of the support wheel (21).
8. A mining machine according to any one of claims 1 to 7, characterized in that the pivot angle of the conveyor (6) region located between the two pivot axes (15, 16) relative to the longitudinal axis (7) of the machine is rigidly fixed during operation.
9. A mining machine according to any one of claims 1 to 8, characterized in that the pivotable arm(s) of the articulated arm (12) is (are) designed as telescope arm(s).
10. A mining machine according to any one of claims 1 to 9, characterized in that the roof bolt drilling and setting device (13) is connected with the pivot arm (13) in a manner so as to be pivotable into a horizontal position by means of a rollover.
11. A mining machine according to any one of claims 1 to 10, characterized in that a revolute joint transmission means (30, 31, 32, 33) hinged to one side of the pivot arm cooperates with a cylinder piston aggregate (34) hinged to the rear region of the mining machine (1) and that the pivot angle range of the pivot arm (12) behind the mining machine is about 180°.
12. A mining machine according to any one of claims 1 to 11, characterized in that the roof bolt drilling and setting device (13) is pivotable about a vertical axis (39) provided on the rollover on the rear end of the pivot arm (12).
13. A mining machine according to any one of claims 1 to 12, characterized in that the rollover is supported on a bearing (43) provided on a pivot arm, in the starting position for vertical pivoting.
14. A mining machine according to any one of claims 1 to 13, characterized in that at least one of the pivotable arms of the pivot arm (12) is vertically pivotable by means of a hydraulic cylinder piston aggregate (28).
15. A mining machine according to any one of claims 1 to 14, characterized in that the pivot arm (12) is hinged to the mining machine (1) laterally outside the longitudinal central plane (7).

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