• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Summary The present invention relates to a method of installing a rock bolt (124) in a first borehole by utilizing a rock bolt rig (100), said rock bolt rig (100) comprising a bar (101), a to said bar (101) fixed boom unit (102), and a fixed bolt unit (103) via a first guide member (106) to said boom unit (102), said bolt unit (103) comprising a feed unit (104) comprising means for movably receiving a drilling machine (105) , said bolt unit comprising a first (103A) spirit and retaining means (123, 125) for retaining said rock bolt (124). The method comprises: - by means of said first hinge means (106) maneuvering said first spirit (103A) of said bolt unit (103) to a first bolt loading position, - when said bolt unit (103) has been maneuvered to said first bolt loading position, providing a rock bolt ( 124) to said bolt unit (103), for holding by means of said holding means (123, 125), and - when said bolt unit (103) has been loaded with said rock bolt (124), maneuvering said bolt unit (103) to a position for installation of said rock bolt (124) and loaded with said rock bolt (124) drill said first hall and install said rock bolt (124) in said first hall. The invention also relates to a rock bolting rig.
    公开号:SE1250804A1
    申请号:SE1250804
    申请日:2012-07-09
    公开日:2014-01-10
    发明作者:Jan Olsson；Rene Deutsch
    申请人:Atlas Copco Rock Drills Ab；
    IPC主号:
    专利说明:

    1 PROCEDURE AND DEVICE FOR BULT INSTALLATION IN BERG FIELD OF THE INVENTION The present invention relates to methods for. installation of rock bolts and in particular to a method for installing a rock bolt in accordance with the preamble of claim 1. The invention also relates to a rock bolt rig.
    Background of the Technology It is common for mining to be extracted from ore bodies in places where it is relatively legal and narrow.
    For example. In the case of ore mining of economic shells, it is often unreasonable that the ore mining takes place in such a way that preferably only the ore body is mined, in order to thereby reduce the amount of surplus rock that must be taken care of to the greatest possible extent, ie. said as little as possible of surrounding mountains / maim bar falja with the broken ore on further processing.
    Ore bodies can be placed in relatively thin layers (order of magnitude 1-2 meters thick), which means that when quarrying narrow ore bodies and / or where only a narrow part of the maize body contains the desired maimhait, quarrying can take place with very low place heights as follows, with dependent requirements on the rock drilling rig to allow extraction of maim and rock with limited height.
    In such ore mining, but even in other contexts where rock drilling takes place in small / legal places, as in rock drilling in general, it is often unreasonable, and often a requirement, that cradles and roofs in an already drilled part of a place are reinforced to secure. that rock / rock sections do not come loose and fall down with risk of injury to man and machine as a result. -77202a 20120618.2012070903120610717.docx; 2012-07-09 2 This reinforcement is often carried out by installing rock bolts, usually according to some predetermined monster, such as e.g. with a certain maximum bore distance, whereby these rock bolts after installation secure the rock.
    Installation of such rock bolts, which installation usually consists of drilling a shark with subsequent installation of the rock bolt in the said hall, is often carried out with the aid of machines.
    However, this rock reinforcement usually requires a certain minimum bolt length, which, when the locations are low / narrow, means that the bolt length plus the bolt length of the bolt unit, ie. the length required behind the rock bolt for bolt placement to take place exceeds the height / width of the locality, with the result that manual intervention by the operator is often required.
    For example. Dangerous bolt units, even though these are often specially designed for use in cramped locations, may require the operator to actively perform several steps during the bolt insertion process at the site of bolt mounting, and clamed at a position under unsecured rock. Examples of such manual steps are splicing / replacing drill bits, as well as manual insertion of the rock bolt into the drilled tail at least to a certain extent before the space behind the rock bolt becomes sufficient for the remaining part of the rock bolt to be inserted into the drilled tail with the aid of the machine.
    There are thus several moments where the operator may be forced to work under unscathed rock, in addition with work steps where drilling rigs and / or rock bolts are handled in the partially or completely drilled tail, with the risk that parts around the drill tail come loose and fall with damage as a result.
    Summary of the Invention -77202a 20120618.2012070903120610717.docx; 2012-07-09 3 It is an object of the present invention to provide a method for installing a rock bolt in a first drilling hall which can reduce risks with working steps where an operator of a rock drilling rig is forced to work under unsecured rock. This object is achieved by a process according to claim 1.
    The present invention relates to a method for installing a rock bolt in a first drilling hall by using a rock bolt rig, wherein said rock bolt rig comprises a bar, a boom unit fixed to said bar, and a bolt unit fixed via a first guide means to said boom unit, wherein said bolt unit comprises a feed unit comprising means for slidably receiving a drilling machine, said bolt unit comprising a first end and holding means for holding said rock bolt, the method comprising: - by means of said first guide means maneuvering said first for bolt loading position, - when said bolt unit has been maneuvered to said first bolt loading position, providing a rock bolt to said bolt unit, for holding by means of said retaining means, and - when said bolt unit has been loaded with said rock bolt, maneuvering said bolt unit to a position said rock bolt and loaded with said rock bolt drill said first hall and install said rock bolt in said first hall.
    According to the present invention, there is provided a bolt installation method with a rock bolting rig, and in particular a bolt-fitting bolt assembly, which may be -77202a 20120618.2012070903120610717.docx; 2012-07-09 4 mechanized drilling and bolting in such a way that all work performed by the operator can be carried out tram in one place, whereby the operator during the bolt installation procedure is not forced to tram under unsecured rock to e.g. change drilling rigs when drilling a slide for bolt installation or insert a rock bolt into the drilled tail. The invention entails a substantially reduced risk of injury.
    In particular, this is achieved by drilling the bolt unit to a loading position before drilling the tail, whereby at said loading position a rock bolt can be supplied to the bolt unit by an operator without the operator having to be exposed to unsecured rock. The bolt unit comprises holding means for holding the rock bolt supplied by the operator, whereby the bolt unit can then be maneuvered to the required position for bolt installation for fixing, whereby drilling and bolt installation can be performed without the operator having to provide a tram to the bolt unit.
    The present invention thus provides a device which enables a bolting procedure to be carried out completely without subjecting an operator to stay under unsecured rock, where the mechanized procedure further facilitates the work of the operator. Despite this, the rock bolt, by being held parallel to the feeder, can be of a length that Or said lang as may in principle have a length that corresponds to the height of the locality or the length of the bolt unit.
    Additional features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments and the accompanying drawings.
    Brief Description of the Drawings -77202a 20120618.2012070903120610717.docx; 2012-07-09 Fig. 1 shows a rock bolting rig with a bolt unit according to the present invention, intended for use in bolt installation at particularly low locations.
    Fig. 2 shows a principle drawing of a bolt unit according to an embodiment of the present invention.
    Fig. 3 shows an exemplary embodiment of a bolt unit according to the principle drawing shown in Fig. 2.
    Fig. 4 shows an exemplary method according to the present invention.
    Figs. 5A-C show further aspects of the bolt unit shown in Fig. 3.
    Detailed Description of Exemplary Embodiments Fig. 1 schematically shows a rock bolt rig 100 according to the present invention in position for drilling a slide 108 for installation of a rock bolt. The rock bolting rig 100 comprises a drill 102, one end of which is fixed to a (schematically indicated) carrier 101, such as e.g. can be constituted by a vehicle, and at the second end 102a of which a bolt unit 103 is hingedly fixed via a first hinge member 106. The bolt unit comprises a feed unit 104 which supports a drilling machine 105.
    The drilling machine 105 is displaceable along the feed unit 104 by means of a screen 122 running along the feeder 104. The rock bolting rig 100 also comprises a control system comprising at least one control unit 107 for controlling various functions occurring at the rock bolting rig 100.
    In the embodiment shown, the boom 102 consists of a single elongate portion, but it may also take another form such as e.g. comprise two boom portions, which are joined by -77202a 20120618.2012070903120610717.docx; 2012-07-09 6 guide means for obtaining additional degrees of freedom when maneuvering the bolt unit 103.
    Drilling in rock at fairways with low local heights places higher demands on the design of the rock drilling rig, and the rock bolting rig 100 shown in Fig. 1 is particularly suitable for use in drilling and / or bolting when working in legal and / or cramped locations, such as e.g. in places with a town height and / or width of 1.6-2 meters, where bolting with bolt lengths substantially corresponding to the town height must be used in order to reduce the risk of e.g. race.
    The function of the rock bolting rig 100, such as moving / maneuvering the bar 101 and the bolt unit 103 and the bolt installation procedure, respectively, is controlled according to the present example by an operator present at the rock bolting rig 100, which controls the rock drilling rig 100 from an operator site. Since rigs of the type shown by their nature are relatively small at the locations mentioned above, the operator's place can be arranged so that the operator stands next to the machine and is not on board the bar, although such a solution is also possible.
    The present invention will now be described in connection with an exemplary method 400 for bolt installation according to the present invention, as shown in Fig. 4. The procedure is started when the position of the rock bolt rig 100 (in particular the carrier 101) is assumed to be the desired position for bolt installation.
    This can e.g. determined by the rock bolting rig 100 control system 107, where a pre-existing bolt installation plan can be stored. Alternatively, this can e.g. determined by the drilling machine operator such as can maneuver rock bolting rig 100 to Desired position for bolt installation. -77202a 20120618.2012070903120610717.docx; 2012-07-09 7 In step 401 it is determined whether the position of the rock bolting rig 100 (bar) is constituted by the desired position, whereby bolt installation can be drilled, which e.g. can be initiated automatically by the control system or by the operator by maneuvering the applicable maneuvering means at said operator location, whereby transition takes place to step 402.
    A plurality of rock bolts are often installed at one and the same bar position, so that the boom 102 is preferably articulated to the bar 101 to allow rigid freedom when maneuvering the bolt unit 103. By means of the boom 102 the bolt unit 103 can be maneuvered to the desired position for bolt installation and thus without relocation of the drilling rig is required by installing the bolt unit to the desired position for bolt installation with appropriate maneuvering of the bolt unit and / or child. When the one or more bolt installations have a bar position have been performed, the bar can be moved forward for installation of an additional set of rock bolts. Examples of travel distances in the longitudinal direction of the bar between the installation of two sets of rock bolts are 1 meter. Suedes, the rock bolting rig is moved as the bolt installation procedure proceeds, and although the bolt installation procedure generally proceeds in an extraction direction, and thus in an unsecured rock direction, the movement will still result in at least a portion of the rock bolting rig has already been secured by bolt installation.
    Thus, when the rock bolting rig 100 has been moved to the position for bolt installation, in step 402 loading of rock bolt is carried out, subsequent installation at the desired position. -77202a 20120618.2012070903120610717.docx; 2012-07-09 8 According to the dangerous invention, this bolt loading is carried out before drilling of the hall in which the rock bolt is to be installed.
    The bolt loading is effected by means of said first guide means 106 turning the bolt unit 103 towards the bar 101, in particular one end of the bolt unit 103, and in the present example its front, i.e. the i.e. the one when drilling for bolting towards the drill tail, spirit 103A. By turning the bolt unit 103 in the direction of the bar 101 with the aid of the guide member 106, the movement of which according to the present example is controlled by means of a hydraulic cylinder 120, the bolt unit 103 is simultaneously maneuvered towards already secured rock because the bolting procedure follows the rock extraction and is thus carried out successively in the extraction direction. mining / ore mining is progressing. The bolt unit 103 is thus conveyed to a loading layer, whereby it can also be ensured that the bolt unit 103 is at least partially inserted under already secured rock, or at least becomes accessible for an operator to perform loading of a rock bolt from an operator site under sacred rock. This location is indicated by "OP" in Fig. 1. According to the present example, it is sufficient that one end of the bolt unit 103, in this case the front end 103A of the bolt unit 103 as above, is moved to a position which with a rock bolt is accessible from a place below Mountain.
    According to the above, the drilling machine 105 is slidably arranged along the feeder 104 by means of the sled 122, and according to the present embodiment a further, rear, bolt holder 123 is further attached to the sled 122, which is thus arranged to be displaced along the feeder with the movement 122 of the sled 122. At the same time as, or after, the bolt unit has been maneuvered to the loading position, the drill bit 122, and thus the rear bolt holder 123, can be moved forward along the feed unit 104, i.e. in the direction of the front of the bolt unit, and in -77202a 20120618.2012070903120610717.docx; 2012-07-09 9 charging position clamed against sacred rock, directed spirit 103A to facilitate the bolt charging procedure.
    The bolt 124 is then loaded by the operator by pushing the rock bolt into the rear bolt holder 124 which, when loaded, can thus be advanced towards the operator. The operator can thus insert one (rear) spirit of the rock bolt into the rear bolt holder, and thanks to the length of the rock bolt, this can be carried out from the secured rock even in situations where the bolt unit itself does not securely continue to a position under reinforced rock.
    The front part of the bolt is then guided into a second, front, bolt holder 125, where the front bolt holder 125, e.g. can be designed with shaft members arranged to be opened when maneuvering to the loading position, and wherein the front bolt holder can be designed such that this at the loading position allows the rock bolt e.g. can be "laid" in place in the front bolt holder by the operator, said shaft member being at least partially closed to prevent the rock bolt 124 from being moved out of position during a subsequent movement of the bolt unit 103. The operator can thus easily insert the rock bolt into the lower bolt holder to then lay the rock bolt in place in the lower bolt holder, at the same time as the operator is constantly under secured rock.
    Instead of the front bolt holder 125 comprising shaft members, this stall can e.g. be designed as a passage through which the rock bolt is fastened. According to one embodiment, the rock bolt 124 is thus first passed through the front bolt holder 125 and is then moved into place in the rear bolt holder 123, which in a corresponding manner can be of different types. Both the front 125 and the rear 123 bolt holder can be arranged to be able to selectively weldable and slidably grip the rock bolt as below. -77202a 20120618.2012070903120610717.docx; 2012-07-09 This type of retaining member is chosen by the person skilled in the art, and can e.g. can be provided by means of cylindrical holding means where radially acting means can be controlled to selectively effect gripping of the rock bolt, alternatively by stopping thrust means to different extents.
    When the rock bolt 124 has continued in place by the operator, this can be indicated for the drilling rig control system 107, e.g. by maneuvering an applicable maneuvering means such as maneuvering a lever or input via e.g. a keyboard or a touch screen. The front bolt holder 125, where applicable, is then closed to a position for displaceable retention of the rock bolt, while the rear bolt holder 123 can be controlled by maneuvering suitable means as above to grip the rock bolt, whereby the rock bolt can then be backed by reversing the blade 122. is baked so that it is "pulled in" into the bolt unit when the blade 122 is moved back into the feed unit.
    When this has been done, the rock bolt 124 is in the position shown in Figs. 2-3, the rock bolt thus being arranged parallel to the slab / drilling machine 105, and also parallel to the drilling shaft along which drilling is carried out, and whereby the rock bolt can thus have a length substantially corresponding to the length of the bolt unit, and in particular a length exceeding the straight slat can be displaced along the feed beam. After the sled has been backed back to a position where the rock bolt reaches the desired position, the front bolt holder 125 can be arranged to loosely grip the rock bolt 124 while the load grip on the rock bolt 124 is released by the rear bolt holder 123 to allow displacement of the blade 122 relative to the rock bolt 124 at drilling. This can be arranged to be performed by the operator or the control system. -77202a 20120618.2012070903120610717.docx; 2012-07-09 11 When it is determined that the rock bolt 124 is in the installation position, step 403, the bolt unit 103 is maneuvered by the operator or control system to the desired position for bolt installation. Many times the roof of the locality is marked and rocked up with markings where rock bolts are to be inserted, whereby the operator can then maneuver the bolt unit 103 to the position for installation of a rock bolt 124 at the respective marking.
    When it is determined that the bolt unit 103 has proceeded to the desired position for bolt installation, step 404, the bolt unit is fixed in the usual applicable manner, according to the present example with the aid of front 126 and rear 127 support legs, respectively. After the bolt unit 103 has been fixed with the aid of the stand legs 126, 127, the bolt unit 103 according to the present invention is kept continuously fixed during the entire bolt installation procedure, i.e. drilling of bolt installation hall with subsequent bolt installation is carried out without the need to move the bolt unit 103, with clamed associated loosening of the city legs 126, 127.
    In the present example, the functionality of the entire bolt unit 103 is suspended about an axis A, which in the present example coincides with the axis of the rear support leg 127, but this should of course not be the case. According to a preferred embodiment, the rotation of the feeder 104 about the axis A is such that rotation can take place between a first layer, preferably and in the present example constituting a first base, and a second layer, preferably and in the present example constituting a second base. According to the present example, a first of said spirit forms a layer where the feeder 104 is in a position where the center of the drilling machine, i.e. drilling center, is located in the sliding center, while in the other area instead of the bolt center for the rock bolt 124 is located in the sliding center. The bolt halls 123, 125 are thus arranged -77202a 20120618.2012070903120610717.docx; 2012-07-09 12 at the bolt unit that rotation of the feeder causes the rock bolt to move along a periphery of a circular bag with the center in the axis A passing through the drilling center. Rotation of the feeder between the first and second surfaces, respectively, is accomplished by means of a feed arm 128.
    Thus, when the bolt unit 103 has been positioned and fixed for bolt installation with the feeder in said first abutment, in step 405 drilling of the tail 108 for bolt installation is performed, the drilling starting with a first 130 of two drilling rigs 130, 131 being driven towards the drilling center. Said first drilling rig 130, as well as a second drilling rig 131 are supported by gripping means 134, 135 arranged on a rotatable drilling rig arm 132, whereby the drilling rig 132 is also rotated about the axis A. The drilling rigs 130, 131 are arranged on said drilling rig 132 in such a way that rotation of the drilling rig 132 around the shaft A is moved along a circular bag with the center in the shaft A and which passes through the drilling center (hall center). Thus, any of the two drilling rigs 130, 131 can be positioned in the drilling center by appropriately rotating the drilling rig arm 132 to the respective layers along said circular bag.
    The drilling rigs 130, 131 are further arranged to be held axially by means of said drilling rig arm in such a way that the drilling rig 130, 131 can be freely inserted when maneuvering to the drilling center in front of the drilling machine 105 when it has been backed to a rear position on the feeder 104. further arranged to be able to move freely relative to an upper drilling town in the form of a shaft member 133. This can e.g. is secured when the drilling rig arm Ater grips the drilling rig after completion of drilling, by performing this gripping as follows when the drilling machine and the then engaged drilling rig after drilling are backed to the applicable position. -77202a 20120618.2012070903120610717.docx; 2012-07-09 13 When the said first drilling rig 130 has thus continued to the drilling center, the blade 106 is maneuvered, and clamed the drilling machine 105, in the direction of said drilling rig while at the same time rotating said drilling machine 105, whereby, when the drills of the drilling rig reach the first drilling rig, of the drill bit 132 held by the drill bit 132 is rotated on the drill 105 at the same time as the drill is advanced towards the drill bit, preferably at a speed adapted to the pitch of the aisle and the rotational speed of the drill 105, respectively.
    When the drilling machine 105 has been connected to said drilling rig 1, the grip of the gripping member 134 is welded to the drilling rig 130, whereby the drilling rig arm 132 can again be moved to the side to the rest position. Drilling with the first drill number 130 is then carried out in an appropriate manner, such as e.g. with application of customary start drilling, and e.g. controlled by the drilling rig's control system. In at least initial drilling, the shaft members 133 of the drill rod 133 can be barred to thereby control but not grip the drill bit. Said shaft member can then be opened after completion of initial drilling. The drilling process then continues until the rear spirit of the first drilling rig 130 has worn the rigid drilling rig, which can be determined with an applicable sensor, alternatively by the operator controlling the feed of the drilling machine, and thus also when drilling is to be stopped.
    The drilling rig 130 comprises in the spirit facing the drilling machine 105 a sleeve 130A, which houses said passages for joining the drilling machine 105 and the second drilling rig 131, respectively, as below, and which sleeve 130A has a larger diameter with the rest of the drill rig. When the drilling has progressed so far that the sleeve 130A reaches the caft means of the drill rod 133, the caft means are closed again, the larger diameter of the sleeve 130A causing the capping means instead of only controlling the drill bit instead of gripping the drill bit -77202a 20120618.20120709031x62061071. 2012-07-09 14 for maintaining this. The drilling rig Or is thus arranged so that it grips the sleeve 130A of the drilling rig in a rod bearing, but in the same rod bearing only controls the distorted, narrower, portion of the drilling rig so that at e.g. start drilling control the drilling speed at the same time as it is displaced through the drilling position of the drilling machine. The drilling rig can be arranged to be moved via a drilling rig 136 to the side after completion of initial drilling until the sleeve 130A of the drilling rig 130 is to be gripped.
    Thus, when the drill bit has gripped the sleeve of the drill string 130, the drill 105 can be disengaged and backed back along the feeder 104. In this position, the second drill string 131 is rotated into the drilling center by the drill string arm 132. In the same way as with the first drill string 130, the drill 105 can now be joined to the second drill string 131, after which the drill string 132 loosens the grip on the drill string 131 and moves to the side, and after which the drill 105 with the second drill string 131 moves towards the first drill string 130 for assembly. with this, the connection is thus made possible by the holding of the first drill number 133 by the drilling rig 133.
    After the joining of the two drilling rigs, the grip of the drilling site is released on the drilling rig 130, whereby the drilling rig 133 can be moved to the side. Drilling continues until the tail has been completely drilled into a hall with a hole depth substantially corresponding to the total length of the first and the second drilling number, respectively. When the tail has thus been fully drilled to the desired depth, the drilling machine 105 is backed, and thus the drill string consisting of the two drill bits, returns to a position where the sleeve of the front drill bit 130 can be gripped by the drill stand 133. The second drill bit 131 can thus be threaded out of the first drill bit 130. , the drilling machine 105 being further backed along the feeder 104 to preferably the position at which the drilling rig arm was previously released, the drilling rig arm 132 -77202a 20120618.2012070903120610717.docx; 2012-07-09 can be moved towards the drilling rig 131 to grip it at an axial bearing substantially corresponding to the bearing at which the grip of the drilling rig arm has previously been released as above. Thus, it can be ensured that the drill string 131 is gripped at an axial position along the drill shaft where the drill string moves freely from the drill stand at the same time as the drilling machine can be disengaged from the drill string and backed free from the drill string, the drill string can also be inserted at a correct position. subsequent drilling of another hall.
    By gripping the drill frame 130 with the gripping means 135 of the drilling rig 130, the drilling machine 105 can then be disengaged, whereby the drilling rig 130 can be moved to the side. The drilling machine 105 can then be fed to the front drill bit 130 and walk on it, whereby after merging the drill bit releases the drill bit so that the first drill bit can be returned to the applicable position for gripping the gripper arm 132 gripping means 135 for the first drill bit so that this drill bit will be able to be inserted at the correct position during a subsequent drilling of another hall.
    Fig. 3 also shows a preferred feature of the sled according to an embodiment of the present invention. Normally, the drive unit for driving the carriage sliding along the feed beam 104 is arranged at the rear of the feed unit 104.
    According to this embodiment, the drive unit 129 for driving the slide along the feeder is instead arranged on the slide 122. The drive unit 129 can e.g. consists of a hydraulic motor and a sprocket, where the sprocket rotates on a tensioned chain that runs along the feeder. When the drive unit 129 is arranged in the usual manner at the rear of the feed unit 104, this gives rise to a longer dead length, which reduces the displaceability of the slide along the feed unit 104. Present invention -77202a 20120618.2012070903120610717.docx; 2012-07-09 16 has the advantage that the blade 122, and the clamed drill 105, can run along a larger proportion of the feed unit 104, and in particular is lined further behind the feeder so that as much space as possible in front of the drill is available for drilling rigs and / or rock bolt, which is advantageous especially when drilling / bolt installation in space-limited locations with space requirements on the machine.
    Thus, when it is determined that drilling of the tail has been completed, step 406, the procedure proceeds to step 407 for installation of the rock bolt 124 in the drilled tail. Rock bolts can be of different types, and can e.g. be of a type dar, after the rock bolt has been inserted into the drill tail, the rock bolt is expanded by means of pressurization. Alternatively, the rock bolt can e.g. be of a type where a resin is supplied to the drill tail for chemical joining of rock and rock bolt.
    The present invention is applicable regardless of the type of bolt system being applied, but in the embodiment exemplified in the figures, a rock bolt type is applied where one or more resin cartridges are first applied to the drill tail, where the resin is a two component resin, then the rock bolt is inserted into the drill tail.
    Such resin cartridge insertion often requires a manual insertion of the operator, and it is also sued that the operator is also exposed to undesired risks at this stage. According to the present invention, however, resin patterning is accomplished without the operator having to operate under unsecured rock. This is accomplished by means of a grouting arm 501, which is shown in Figs. 5A-C. The injection arm 501 comprises a nozzle 502 which is directed towards the drill tail as shown below and to which a hose portion 503 (schematically indicated in Fig. 5C) is connected and in the opposite (not shown) spirit one or more -77202a 20120618.2012070903120610717.docx; 2012-07-09 17 resin cartridges can be fired. In one embodiment, the resin cartridges in the hose portion 503 are charged upon bolt loading, while in another embodiment, the resin cartridge (s) are charged after drilling the handle. The hose portion 503 is preferably arranged so that its end facing away from the injection arm 501 is accessible for resin cartridge loading from the protected operator site either during bolt loading, and / or above where the bolt assembly 103 has been fixed for drilling.
    The injection arm 501 Or is pivotally arranged around a pivot joint Si, via a pivot arm 504 ddr the axis Or of the pivot joint Si is substantially perpendicular to the drill shaft. The injection arm 501 is articulated to pivot arm 504 in such a way that when the injection arm is pivoted towards the drill tail, the injection nozzle 502 is aligned substantially coaxially with the drilling / holding center at the swung-in position, see Fig. 5C. By the pivot arm 501 pivoting about a substantially perpendicular axis Si relative to the drill shaft, the pivoting not only causes the punch nozzle 502 to be moved towards the drilling center but also moves the punch nozzle 502 from a rest position shown in Figs. 5A-B in the axial direction the distance between nozzle and slippery. Preferably, the groove arm is retracted to a position where the groove nozzle 502 abuts substantially against the drilled hole. When the grouting nozzle 502 has been moved towards the drill tail, the one or more resin cartridges can be pushed into the drilling hole via the grouting hose, e.g. by connecting to it from the injection arm 501 the spirit a pressurized fluid such as air.
    The exemplary groove arm 501 has an additional feature. The grouting arm shown Or further arranged to support a bolt adapter 505 suffers subsequent rotation of the rock bolt. This bolt adapter 505 Or i -77202a 20120618.2012070903120610717.docx; 2012-07-09 18 The present example is suspended in a bayonet socket 506 at the injection arm 501 from the drill tail. The bayonet socket 506 is such that the bolt adapter 505 is held in the bayonet socket 506 coaxially with the nozzle 502, the injection arm 501 continuing to the injection position. The bolt adapter will also be positioned coaxially with the drilling center. The bolt adapter 505 further includes a passage socket (indicated by 507) at its injection arm 501. In this case, when the grouting arm Or is in the position of resin grouting, the drilling machine can be advanced in the direction of the bolt adapter and coupled to it. Once the drill has been coupled to the bolt adapter, a slight rotation in the opposite direction can release the bolt adapter from the bayonet socket of the grouting arm, whereby the drill with bolt adapter can be backed back along the feeder.
    This connection with the bolt adapter 505 can be arranged to be completely controlled by the operator, or alternatively to be controlled by the control system of the drilling rig. When the drill has been assembled with the bolt adapter, it is backed up, the feeder is returned, and when the one or more resin cartridges have been loaded in the drill tail, the injection arm is swung back to the rest position.
    The bolt 124 has, as above, been held in place throughout the drilling process in parallel with the sieve 122, where the rock bolt 124 is secured by means of the front bolt holder 125 with support from the rear bolt holder, but according to the above the rear bolt holder 123 does not grip the rock bolt 124 when drilling. 122 laps back and forth along the feeder during the drilling process.
    When installing the rock bolt 124 in the borehole, the feeder is first rotated about the axis of rotation A to the second abutment, whereby, by arranging the rock bolt 124 according to the above Or along -77202a 20120618.2012070903120610717.docx; 2012-07-09 19 a circular bag that passes through the drilling center, rotation of the feeder 104 causes the rock bolt 124 to be rotated into the drilling center. The rear bolt holder 123 is controlled so that it grips the rock bolt 124, while the grip of the front bolt holder 125 around the rock bolt 124 is released, whereby the rock bolt 124 is inserted into the drilled tail by means of the blade 122 by passing it forward along the feeder 104. rock bolt 124 into the tail. The rock bolt 124 is inserted into the drill tail with the aid of the sled 122 and the rear bolt holder 123 at least so far that the rear end of the rock bolt ends up so far forward that the drill plus bolt adapter fits behind the rock bolt when the sled is backed, but preferably as far as possible given the sled ldngs feeder 104.
    When the rock bolt has thus partially been inserted in the tail to at least one position where drilling machine 105 with bolt adapter 506 fits behind the rock bolt, the feeder is turned back to said first dndldge, ie. drilling position, wherein the bolt adapter, which comprises a sleeve for receiving the lower end of the rock bolt, is pushed against the rock bolt by means of the drilling machine, whereby the rock bolt can be inserted into the tail with the aid of a bolt adapter and drilling machine.
    With the aid of the drilling machine, via the bolt adapter, a rotation of the rock bolt is employed to provide a mixture of the two components of the resin when the rock bolt penetrates one or more resin cartridges. When the rock bolt is thus already installed, the drilling machine is backed back along the feeder, whereby when the drilling machine has been backed sufficiently far, the grouting arm 501 is returned to the grouting position so that the bolt adapter 506 can be returned to the bolt adapter holder by means of the drilling machine. -77202a 20120618.2012070903120610717.docx; 2012-07-09 In cases where the rock bolt is of a different type than a resin bolt, an arm corresponding to the grouting arm can still be used to support a bolt adapter for use in the bolt installation.
    When the tail has been drilled and the rock bolt has been installed, the drill bit is loosened, whereby the bolt unit can be turned again towards an operator site under secured rock to receive a new rock bolt for installation at another position, which is achieved either by maneuvering the boom / bolt unit only or by advancing by the bdrar.
    The bolt unit 103 according to the present invention thus makes it possible to drill a hall with subsequent installation without any intervention by the operator being required at the bolt unit after the bolt unit 103 has been maneuvered to a drilling position, i.e. without the operator having to go to the bolt unit to perform actions on it during drilling / bolt installation.
    Thus, with the aid of the present invention, a device is obtained which enables a bolting procedure to be carried out easily without exposing an operator to stay under unsecured rock, where the mechanized procedure also facilitates the work of the operator. The present invention further has the advantage that the rock bolt, since it is held parallel to the feeder, and thus can use the full length of the feeder, can be of a length that is as long as possible given the danger exposures, and thus in principle have a length corresponding to the height of the locality. This is made possible in particular by, according to one embodiment, the functionality of the bolt unit being suspended about an axis, where the feed unit Or is rotatable about this axis, where in a first position the feed unit is in a drilling position with the drill coaxial with the drill shaft, and ddr in a second long bolt center. bergbult Or -77202a 20120618.2012070903120610717.docx; 2012-07-09 21 coaxial with the said drill shaft so that the available length in the most possible way can be used without the bolt length having to be reduced to make room for a drill etc. Easy insertion of the bolt is made possible in particular by using the blade and the one on the blade arranged the bolt holder to insert the bolt into the drilled tail without the fixed bolt unit needing to be loosened.
    The steps shown when drilling / inserting a rock bolt can be arranged to be initiated in principle completely and the hall by the drilling rig operator. Alternatively, part of the patching steps or the entire bolting process can be completely controlled by the drilling rig control system. As will be appreciated, the example shown in the figures of a drilling rig according to the present invention is only an example, and a drilling rig according to the present invention can take on a number of different specific embodiments.
    A preferred feature of the present invention, however, is that a rock bolt can be fed to the bolt unit without the operator having to leave an area with sacred rock, and that the rock bolt is fed to the bolting unit before drilling of the holding rock bolt, whereby drilling and bolting can be performed with fixed bolting unit. which enables an efficient, time-saving and at the same time things bolt installation.
    As will be appreciated, the present invention is not limited to the above-described embodiments of the invention, but relates to and includes all embodiments within the scope of the appended independent claims. -77202a 20120618.2012070903120610717.docx; 2012-07-09
    权利要求:
    Claims (2)
    [1]
    Means means, by means of said first hinge means (106), maneuvering said first spirit (103A) of said bolt unit (103) to a first bolt loading position,
    [2]
    2. holding means (123, 125) arranged at said -77202a 20120618.2012070903120610717.docx; 2012-07-09 28 bolt unit (103) receives, when said bolt unit (103) has been maneuvered to said first bolt loading position, receiving a rock bolt (124), and means for, when said bolt unit (103) has been loaded with said rock bolt (124), maneuvering said bolt assembly (103) to a position for installing said rock bolt (124) and, loaded with said rock bolt (124), drilling said first bolt and installing said rock bolt (124) in said first bolt. -77202a 20120618.2012070903120610717.docx; 2012-07-09
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    公开号 | 公开日
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    CN104428493B|2017-04-12|
    CA2878209C|2020-10-06|
    US20150117961A1|2015-04-30|
    ZA201408941B|2016-08-31|
    CN104428493A|2015-03-18|
    WO2014011100A1|2014-01-16|
    CA2878209A1|2014-01-16|
    SE537968C2|2015-12-22|
    FI127937B|2019-05-31|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1250804A|SE537968C2|2012-07-09|2012-07-09|Procedure and device for bolt installation in rock|SE1250804A| SE537968C2|2012-07-09|2012-07-09|Procedure and device for bolt installation in rock|
    US14/405,708| US9856733B2|2012-07-09|2013-06-27|Method and rock bolting rig for installation of a rock bolt|
    CA2878209A| CA2878209C|2012-07-09|2013-06-27|Method and rock bolting rig for installation of a rock bolt|
    CN201380036488.7A| CN104428493B|2012-07-09|2013-06-27|Method and rock bolting rig for installation of a rock bolt|
    FI20146072A| FI127937B|2012-07-09|2013-06-27|Method and rock bolting rig for installation of a rock bolt|
    PCT/SE2013/050804| WO2014011100A1|2012-07-09|2013-06-27|Method and rock bolting rig for installation of a rock bolt|
    ZA2014/08941A| ZA201408941B|2012-07-09|2014-12-05|Method and rock bolting rig for installation of a rock bolt|
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