Classifications

• • E—FIXED CONSTRUCTIONS
  • E21—EARTH OR ROCK DRILLING; MINING
  • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
  • E21D20/00—Setting anchoring-bolts
  • E21D20/003—Machines for drilling anchor holes and setting anchor bolts
• • E—FIXED CONSTRUCTIONS
  • E21—EARTH OR ROCK DRILLING; MINING
  • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
  • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
  • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
• • E—FIXED CONSTRUCTIONS
  • E21—EARTH OR ROCK DRILLING; MINING
  • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
  • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
  • E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole

Definitions

• the invention relates to a device for drilling mountain anchor holes or blasting holes and for setting rock anchors, especially for mining and tunneling, with a rock drilling machine which is movable on a front provided with a rod guide carriage in the direction of the mountains and for boring a boring bar is used in the mountains and then introducing a rock bolt in the produced well, the tool holder of the rock drilling machine has a suitable both for boring bars and for rock anchors receptacle and the carriage is provided with the boring bars or the rock bolts in the drilling axis positioning grippers, which from the drilling axis out laterally swinging are mounted on the carriage.
• a device is known for example from DE 199 57 903 B4.
• At least one of the grippers remains pivoted in the drilling axis during the drilling operation or the anchoring process and serves as an additional guide for the boring bar or rock anchor rod.
• Such devices have the advantage that they can perform both the drilling process and the Ankersetzvorgang without complex additional mechanical devices.
• a disadvantage, however, is that the Bohrist (operator of the device) or its helper after completion of the drilling process must remove the drill rod from the gripper to subsequently insert the anchor rod in the gripper can, so that then the rock anchor in the drilling axis can position.
• the boring bar must again by hand
• CONFIRMATION COPY be inserted into the gripper.
• the invention proposes, starting from the device of the type mentioned above, that on the one hand and the rock anchors on the other hand separate grippers are provided, which are mounted on the opposite sides and on opposite sides pivotally mounted on the carriage and the Releasing the displacement of the rock drilling machine during the drilling process or during the anchor setting process.
• the gripper for holding and inserting the boring bar on the one hand and the gripper for keeping and inserting the rock anchor on the other hand spatially separated from each other on both sides of the carriage arranged and specialized in terms of their use. They also no longer serve to guide the drill rod during the drilling process or the anchor rod during the anchor setting process.
• This function takes in the device according to the invention during the drilling process or during the anchor setting process exclusively the tool holder of the rock drilling machine in cooperation with the rod guide at the front end of the mount. Because of the close specialization of the grippers, a complete work cycle that runs in two steps (anchor hole drilling and anchoring) can be carried out fully automatically without the drill driver or his assistant being next to the carriage for the purpose of inserting a boring bar or a rock bolt would. It is particularly advantageous that this mechanization is achieved with virtually no additional mechanical effort. Particular advantages arise when rock anchors are used with an integrated adhesive depot, which is activated by the rock drilling machine at the end of the Anchaneshell process. Such rock anchors are known in the art. For this purpose, for example, reference is made to DE 100 17 763 B4.
• a preferred embodiment of the invention also provides that the rod guide at the front end of the carriage is to be opened laterally and at the end of the drilling process or the Ankersetzvorganges the path of movement of the rock drilling machine towards the working face releases. This avoids unnecessary dead space in front of the front end of the carriage to the working face.
• the gripper for the rock anchors may suitably be associated with a magazine containing a plurality of rock bolts, from which the hook can successively remove rock bolts.
• Such a magazine is not required for the boring bars, because usually with a boring bar at least as many rock anchoring holes can be drilled as rock anchors are present in the magazine.
• a large number of work cycles can be carried out completely automatically one after the other, without the Bohrist or his assistant having to work in the endangered area.
• the above-mentioned drilling process alone can be repeated as often as desired. Since rock anchors are not required for drilling blast holes, the grippers can be moved to a rest position during this time, in which they do not interfere with blast hole drilling operations.
• the grippers are additionally mounted so pivotably on the carriage in parallel to the drilling axis extending pivot planes, that they are lockable in each case a laterally located next to the carriage rest position.
• the swivel arms of the rod guide located at the front of the mount can be swung downwards in a rest position in which they can not disturb blast hole drilling.
• the mount has a telescopic extension at the front end, at the front end of which a drill rod guide is provided.
• Fig. 1a shows a device according to the invention in side view in the basic position
• Fig. 1 b is a plan view of Figure 1a;
• Fig. 1c is an end view of Figure 1a;
• FIG. 3a, b and c in the same representation as the figures 1a, b and c, the device according to the invention at the beginning of the drilling process;
• Figures 4a, b and c in the same representation as Figures 1a, b and c, but on a reduced scale, the device according to the invention at the end of the drilling process.
• Fig. 7a, b and c in the same representation as the figures 1a, b and c, but on a smaller scale, the device according to the invention at the end of the Ankeretzvorganges.
• Fig. 8a, b and c in the same representation as the figures 1a, b and c, the device according to the invention during blast hole drilling.
• the carriage is designated by the reference numeral 1.
• a rock drilling machine 2 is arranged, which is movable over the entire length of the carriage.
• the rock drilling machine 2 has a tool receptacle 5 which is suitable both for boring bars 3 and for rock anchors 4.
• a rod guide 6 At the front end the carriage is provided with a rod guide 6, the boring bar 3 or the rock anchor 4 passed through during the drilling operation or during the anchoring process granted the required guidance along a drilling axis 7.
• This rod guide has two guide jaws which are fixed to pivot arms 8 and 9, which are mounted in a direction perpendicular to the drilling axis 7 pivoting pivotally mounted at the front end of the carriage 1 and is to be opened by pivoting the pivot arms 8 and 9 such that the tool holder. 5 the rock drilling machine 2 can be advanced directly to the working face 10 without being hindered by the rod guide 6.
• the carriage 1 is further provided with grippers 11 and 12, which are respectively mounted in the perpendicular to the drilling axis pivot planes pivotally mounted on the carriage 1 and serve, in the pivoted position, a boring bar 3 and a rock anchor 4 in the Bohr- Position axis 7 and in the pivoted out position the drill rod 3 or a rock anchor 4 ready for the next step.
• the attachments of the grippers 11 and 12 on the carriage 1 also allow in each case a pivoting of the grippers 11 and 12 in parallel to the drilling axis 7 extending pivot levels such that the grippers 11 and 12 can be pivoted laterally in a rest position next to the carriage 1 to to be arrested there.
• the device is in the standby position, d. H. the two grippers 11 and 12 are in the pivoted-out position and keep a drill rod 3 or a rock bolt 4 ready for use.
• the gripper 11 holding the drill rod is pivoted in such a way that the drill rod 3 is located in the drilling axis 7, such that it can be inserted into the tool receptacle 5 of the rock drilling machine 2 and into the rod guide 6.
• FIGS. 3 a, b and c the gripper 1 is pivoted out again laterally, the boring bar 3 remaining in the drilling axis 7.
• the gripper 11 has thus released the displacement of the rock drilling machine 2 along the carriage 1, so that the drilling process can begin.
• Figures 4a, b and c show the device at the end of the drilling process.
• the rock drilling machine 2 is moved along the carriage 1 to the very front.
• the rod guide 6 is opened, so that the tool holder 5 of the rock drilling machine 2 can be advanced to the working face 10 and no dead space is created between the front end of the rock drilling machine 2 and the working face 10.
• FIGS. 5a, b and c the rock drilling machine 2 has returned to its original position and the gripper 12 has positioned a rock bolt 4 in the drilling shaft 7, so that the rock bolt 4 can be inserted into the tool holder 5 and the rod guide 6.
• FIGS. 6a, b and c the gripper 12 has been swung outwards again and the rock bolt 4 has remained in the drilling shaft 7, so that the bolt-fastening operation can begin.
• the rock drilling machine 2 is moved forward on the carriage 1 over its entire length forward and activated in the final phase of this sliding process, the adhesive depot in the rock anchor. 4
• FIGS. 7 a, b and c show the device at the end of the anchor setting process, in which the rod guide 6 is again folded down laterally in such a way that the tool holder 5 of the rock drilling machine 2 can be advanced directly up to the stationary frame 10.
• the device At the end of the anchor setting operation, the device returns to its original position according to FIGS. 1a, b and c, so that the next working cycle can begin.
• FIGs 8a, b and c show the device according to the invention in blasthole drilling.
• the two grippers 11 and 12 are pivoted in their rest position laterally next to the carriage 1.
• the displacements of the grippers 11 and 12 on the carriage 1 on additional pivot axes which allow such pivoting in parallel to the drilling axis 7 extending planes of rotation.
• the pivot arms 8 and 9 of the rod guide 6 is completely pivoted down, so that they can not interfere with the Sprenglochbohrin.
• the carriage 1 is provided with a telescopic extension 13, which is provided at its front end with a drill rod guide 14 suitable for the drilling work.
• the device can operate either with fully extended telescopic extension 13 or with fully or partially retracted telescopic extension 13. In this way it is possible to adapt to different drill rod lengths and / or borehole depths.

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• Engineering & Computer Science (AREA)
• Mining & Mineral Resources (AREA)
• Life Sciences & Earth Sciences (AREA)
• Geology (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Geochemistry & Mineralogy (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Environmental & Geological Engineering (AREA)
• Fluid Mechanics (AREA)
• Structural Engineering (AREA)
• Earth Drilling (AREA)

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Cited By (9)

Citations (5)

• 2012
  • 2012-03-02 WO PCT/EP2012/000931 patent/WO2013127409A1/fr not_active Ceased

Patent Citations (5)

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