EP2821591A1 - Mining machine roof bolting rig - Google Patents
Mining machine roof bolting rig Download PDFInfo
- Publication number
- EP2821591A1 EP2821591A1 EP20130175089 EP13175089A EP2821591A1 EP 2821591 A1 EP2821591 A1 EP 2821591A1 EP 20130175089 EP20130175089 EP 20130175089 EP 13175089 A EP13175089 A EP 13175089A EP 2821591 A1 EP2821591 A1 EP 2821591A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- rig
- roof
- mining machine
- carrier
- 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.)
- Granted
Links
- 238000005065 mining Methods 0.000 title claims abstract description 43
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 abstract description 2
- 239000012050 conventional carrier Substances 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 7
- 239000011707 mineral Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/20—Mineral freed by means not involving slitting
- E21C27/24—Mineral freed by means not involving slitting by milling means acting on the full working face, i.e. the rotary axis of the tool carrier being substantially parallel to the working face
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
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- 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
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
Definitions
- the present invention relates to a mining machine roof bolting rig configured to secure roof straps to a roof of a mine tunnel and in particular, although not exclusively, to a bolting rig configured to provide a plurality of bolting positions relative to the mining machine via components of the rig tilting back and forth and pivoting in a sideways direction.
- a mobile mining machine comprises a rotatable cutting or mining head having cutting bits provided on rotating drums to contact the mineral face.
- the cutting head is conventionally mounted at a moveable boom so as to be adjustable in height relative to the mine floor. As the cutting head is rotated and advanced into the seam, the extracted mineral is gathered by a gathering head and then conveyed rearwardly by the mobile machine via conveying apparatus to create discharged stock piles for subsequent extraction from the mine.
- Continuous bolter miners typically comprise a pair or set of bolting rigs positioned laterally either side of the moveable boom.
- the rigs are operational to simultaneously bolt roof straps to the roof surface of the mine as the miner is advanced by the cutting head progressing forward through the deposit seam.
- the roof bolting rigs are tiltably mounted at the main frame of the machine to allow roof bolts to be installed at varying positions across the roof extending over the miner.
- An alternative configuration is to mount the bolting rigs on a sliding arrangement to allow the drill/bolt head to slide laterally between inner and outer positions across the width of the miner.
- the objectives are achieved by providing a roof bolting rig having a first and second component base frame such that the second frame is pivotally mounted at the first to be configured for tilting back and forth relative to the frame and a main frame of the mining machine.
- This configuration is specifically advantageous to allow the reliable movement of the drill head to a position immediately behind and in close proximity to the cutting head at the region of the tunnel roof.
- the present invention further comprises at least one link arm that is pivotally mounted to a part of the base frame such that an upper end of the link arm is capable of pivoting laterally in a sideways direction towards and away from the cutting boom of the mining machine. Accordingly, the drill head is therefore capable of being displaced to a position immediately adjacent one side of the cutting boom and to an extreme laterally outward position at one side of the mining machine furthest from the central cutting boom.
- the present drill rig mounting assembly comprises at least one first pivot mounting to couple the first and second base frame components and a further set of pivot mountings associated with the link arms to allow the lateral sideways deflection of the rig.
- the respective pivot mountings associated with the base and the link arms are preferably aligned perpendicular to one another and spatially separated at different regions of the rig to provide a robust and reliable construction effective over a large range of motion in both the forward and backward and sideways directions.
- the use of pivot mountings within the rig mounting arrangement is significantly less complex than existing bolting rigs which is advantageous to minimise maintenance and the overall weight of the miner and associated components.
- a mining machine roof bolting rig comprising: a drill or bolt head for positioning at a roof to secure a roof strap to a mine roof; a first rig base frame mountable at a main frame of a mining machine to couple the rig to the machine; characterised by: a second rig base frame pivotally mounted at the first base frame and configured tilt back and forth relative to the first frame; a carrier support to mount the drill or bolt head; and at least one link arm pivotally mounted at a first end to the second frame and pivotally mounted at a second end to the carrier support, the link arm extending upwardly from the second frame; wherein the pivotal mounting of the link arm is substantially perpendicular or transverse to the pivotal mounting of the second frame at the first frame so that the carrier support is configured to pivot laterally in a sideways direction relative to the first frame.
- Reference within the specification to a ' drill or bolt head ' refers to a device configured to create a bore and/or to embed an anchorage bolt, screw, pin or the like into a mine tunnel roof.
- the head may therefore be a drill unit known in the art or a hammer-like actuator to punch or thrust an elongate element into the roof via a linear motion.
- the drill or bolt head is mounted at a shuttle with the shuttle mounted at an elongate carrier.
- the rig further comprises a drive arrangement configured to move the shuttle upward and downward at the elongate carrier relative to a head plate for positioning at the roof to support the roof strap for bolting to the roof.
- the shuttle, elongate carrier and drive arrangement may comprise conventional components known in the art.
- the elongate carrier may be a telescopic arrangement with the assembly configured to propel the drill (or bolt) head from a lower position substantially at the machine to a raised or elevated position at the head plate to perform the drilling or bolting action.
- the drill rig comprises a chain drive mechanism (to mount the shuttle at the elongate carrier) and at least one linear actuator, optionally being a power operated linear actuator, to drive the telescopic extension of the carrier to both raise and lower the drill or bolt head (and the head plate) in the substantially vertical direction between the mining machine and the miner roof.
- a chain drive mechanism to mount the shuttle at the elongate carrier
- at least one linear actuator optionally being a power operated linear actuator, to drive the telescopic extension of the carrier to both raise and lower the drill or bolt head (and the head plate) in the substantially vertical direction between the mining machine and the miner roof.
- the rig further comprises a linear actuator extending between the second frame and the link arm to drive the pivotal movement of the carrier support in the sideways direction.
- a first end of the actuator is attached to an inboard side of the second frame and a second end of the actuator is attached towards an upper end of the link arm.
- the actuator is configured to provide a direct pushing force to the link arm to maximise power draw efficiency of the actuator.
- the rig further comprises a linear actuator extending between the first frame and the second frame to drive the tilting movement of the second frame back and forth relative to the first frame.
- the linear actuators that drive the i) forward and rearward and ii) lateral side-to-side movement of the second frame and link arm comprise power operated cylinders such as hydraulic or pneumatic cylinders conventional to the art.
- the rig and/or mining machine may further comprise actuator drive components to impart the linear extension and retraction of the cylinders.
- the second frame projects upwardly from one end of the first frame.
- the second frame may be attached pivotally at the first frame via one end of the second frame.
- This configuration is beneficial to provide that the drill head component is mounted at the optimum position relative to the rotating cutting head whilst minimising the size and weight of the rig component parts.
- a second and uppermost end of the second frame may be configured to pivot from a position substantially vertically above a forwardmost end of the first frame to a position forwardmost of said end of the first frame.
- a pivot mounting is advantageous over conventional sliding arrangements that are subject to particulate and dust ingress that in turn accelerates component wear.
- the pivoting components are effectively shielded from the dusty environment and a reliable and robust coupling is provided accordingly. Attachment of the base frames at their respective ends also increases the range of movement in the forward and rearward direction.
- a pivot axis by which the second frame is mounted at the first frame is orientated substantially perpendicular or transverse to a pivot axis by which the link arm is mounted at the second frame such that the carrier support is configured to move in a sideways direction substantially perpendicular or transverse to the forward and backward tilting movement of the second frame.
- the movement of components in both the longitudinal and lateral directions does not interfere with one another and accordingly the maximum available reach of the rig in these directions (during bolting operations at the roof) is optimised.
- a pivot axis between the first and the second frame and a pivot axis between the link arm and the second frame are substantially perpendicular.
- the rig comprises two pivot mountings coupling the second frame to the first frame and optionally a single pivot pin extending through the pivot mountings.
- a single pivot pin extending between two pivot mountings provides a robust coupling and eliminates twisting and bending deformations during use.
- the pivot mountings are positioned at respective ends of the first frame and the second frame. As indicated, this configuration is advantageous to maximise the longitudinal and lateral movement to achieve roof bolting as close as possible to the cutting face and the central longitudinal axis of the miner.
- the rig comprises two link arms independently pivotally mounted between the second frame and the carrier support.
- the dual link arm arrangement is effective to stabilise the carrier support to provide control of the lateral sideways movement and the additional working component of the vertically extendable rig including the carrier support, linear actuators, shuttle, drill motor and shuttle drive components.
- the link arms may be arranged parallel or non-parallel to one another and extend upwardly from the second frame. The orientation of the link arms relative to one another may be optimised to ensure components of the rig move in non-touching contact with one another and components of the mining machine without compromising the maximum reach in the longitudinal and lateral directions.
- the at least one link arm is pivotally mounted at the second frame at a position laterally outboard of the position of attachment of the second frame to the first frame.
- This arrangement is effective to maximise the extension of the rig laterally outward away from the central cutting boom to provide roof bolting over an extended lateral distance at and beyond the lengthwise sides of the mining machine.
- an upper second end of the at least one link arm is configured to move laterally side-to-side between an inboard side of the first and second frame and an outboard side of the first and second frame and towards and away from a cutting boom of the mining machine that supports the cutting head.
- the carrier is mounted directly to the carrier support.
- the carrier is mounted indirectly at the carrier support and/or may be stabilised at the carrier support via at least one attachment (or mounting) flange.
- the attachment flange is adjustably mounted between the carrier and the carrier support to allow variation of the position of the carrier at the carrier support and in particular adjustment of the height of the carrier relative to the first and/or second frame.
- the adjustable attachment flange is advantageous to allow manual manipulation of the relative height position of the rig at the mining machine to suit a desired tunnel roof height within the mine.
- the present rig arrangement allows a manual setting of the maximum available reach of the bolting head towards the cutting face and laterally over the centre and to the side of the mining machine as desired.
- a mining machine or a continuous mining machine comprising at least one roof bolting rig as claimed herein.
- the mining machine is a continuous bolter miner.
- the mining machine may comprise at least two roof bolting rigs mounted at a forward end of a main frame of the mining machine, the rigs positioned laterally to each side of a cutting boom projecting forwardly at the mining machine and mounting a cutting head. That is, the mining machine may comprise a plurality of roof bolting rigs mounted laterally at each side of the central cutting boom.
- each of the plurality of rigs may be mounted at a common first frame such that the mining machine comprises a plurality of second frames each pivotally mounted at the common first frame.
- the rigs are positioned immediately behind the cutting head.
- at least one rig is positioned immediately adjacent one side of the central cutting boom.
- the relative positioning of the rig with respect to the cutting head and cutting boom is advantageous to allow roof bolting substantially at the longitudinal centre of the machine and at or immediately behind the cutting face so as to stabilise the roof and avoid undesirable collapse during and post cutting.
- the mining machine 100 comprises a main frame 101 that provides support for an undercarriage or chassis 109 that supports a pair of endless driven tracks 113 for propelling the machine 100 over the ground and along a tunnel to advance forwardly through a material deposit seam.
- Main frame 101 comprises a generally forward end 102 and a generally rearward end 103.
- a conveyor 104 extends substantially from forward end 102 to rearward end 103 and is adapted to carry material dislodged from the cutting face for subsequent discharge and stock piling at a remote location optionally using additional conveying and mining apparatus.
- a movable cutting boom 105 is pivotally mounted at one end 112 via a pivoting bracket 110 to main frame 101 and comprises a second end 106 mounting a cutting head 115 that in turn mounts a plurality of rotatable drums 107.
- Cutting bits 108 project radially from each drum 107 and are specifically adapted to cut into and dislodge the mineral material to be mined from the seam.
- Boom 105 and in particular end 106 is capable of being raised or lowered relative to main frame 101 and endless tracks 113 to enable machine 100 to cut the seam face over a varying height range above the ground of the mine tunnel.
- Boom 105 is operated by hydraulic rams 201 (referring to figure 2 ) and other associated components as will be appreciated by those skilled in the art.
- a canopy 111 comprises a vertically uppermost region having a generally planar configuration and is adapted for being raised vertically upward from frame 101 in a manner similar to cutting boom 105 so as to contact the mine roof to provide structural support as necessary during the cutting and roof bolting operations. Additionally, a tail section 114 projects rearwardly from the rearward end 103 of frame 101 to carry rearwardly conveyor 104 to a discharge end 116 representing a rearward most part of the continuous machine 100.
- Machine 100 further comprises a gathering head 117 mounted at forward end 102 via a head mounting bracket 200 (referring to figure 2 ). Head 117 is configured to collect material removed from the deposit seam by the cutting action of head 115. The cut material is then transported rearwardly of machine 100 via conveyor 104.
- machine 100 further comprises a roof bolting rig indicated generally by reference 118 and mounted at the forward end 102 of frame 101 laterally to one side of cutting boom 105.
- Rig 118 is positioned immediately behind a boom arm 304 that extends laterally to one side of the central boom 105 and immediately behind cutting head 115.
- Rig 118 comprises a first base frame 300 rigidly attached to frame 101 and projecting forwardly from frame 101.
- a second frame 301 extends upwardly from one end of frame 300 to mount the remaining components of the rig, as described in further detail below, including in particular a head plate 302 configured for positioning in contact with the roof of the mine to support a roof strap for bolting to the roof by the rig 118.
- rig 118 is positioned laterally to one side 303 of cutting boom 105.
- first frame 300 is rigidly attached to the forwardmost end of the main frame 101 via anchorage mounts 402.
- second frame 301 is pivotally attached at a first end 705 to a second end of first frame 300 via a pivot mounting arrangement.
- the pivotal coupling of first frame 300 to second frame 301 is achieved via a single pivot pin 704 extending through a first pivot mounting 707 and a second pivot mounting 703.
- first pivot mounting 707 is positioned at an inboard side of first and second frames 300, 301 whilst second pivot mounting 703 is positioned at an outboard side of the first and second frames 300, 301 relative to the central cutting boom 105.
- a plane of second frame 301 is aligned perpendicular to a plane of first frame 300.
- a manual adjustable spindle 411 is attached at respective ends to first frame 300 and second frame 301 such that by linear extension, frame 301 is configured to pivot forwardly via pin 704.
- Second frame provides a mounting region for a pair of link arms 403 that extend upwardly from a second end 706 of frame 301.
- Each link arm 403, a lowermost region comprises a bore (not shown) to receive a pivot pin 413 such that each arm 403 is capable of lateral sideways pivoting movement about each respective pin 413 relative to frame 301.
- a first link arm 403 comprises a substantially straight configuration and is positioned laterally closest to side 303 of boom 105.
- An outboard link arm 403 comprises a generally dog-leg configuration having a main length 700 and a relatively shorter angled second length 701 that extends in the outboard direction from main length 700 away from boom 105.
- a hydraulic linear actuator 410 comprises a first end 417 mounted at an inboard side 416 of frame 301 and a second end 418 mounted towards the upper end of the inboard link arm 403 via a mounting flange 500.
- Link arms 403 are coupled at their uppermost regions by pivotal attachment to a carrier support 404 via respective pivot pins 702 extending through respective pivot mountings 412 at support 404 and respective bores (not shown) extending through the upper ends of each link arm 403.
- Mountings 412 are positioned at an uppermost region 419 of support 404.
- the bolting rig 118 further comprises an elongate carrier 405 being a telescopic carrier arrangement known in the art in which a shuttle 406 is slidably mounted at a plurality of runners (at carrier 405) to allow shuttle 406 to move in the upright direction from first frame 300.
- Carrier 405 typically comprises a chain drive mechanism and a plurality of linear actuators 600, 601, with at least one actuator coupled to head plate 302 such that when powered, head 302 is capable of being displaced in the upward direction to contact the mine roof followed by the upward movement of shuttle 406 along carrier 405 towards head 302.
- Shuttle 406 comprises a drill head 408 and a suitable drive motor 407.
- Drill head 408 comprises a drill or bolt bit 501 for boring into the mine roof to enable anchorage of a screw or bolt element to secure the roof strap at the roof.
- the carrier 405 and shuttle assembly 406 (including plate head 302) is mounted at carrier support 404 via an intermediate mounting flange 414.
- a brace 415 provided at support 404 allows adjustable mounting of flange 414 to provide positional adjustment in the upright direction (from first frame 300) of carrier 405 at support 404.
- the drill or bolt head 408 is coupled to main frame 101 via mounting flange 414, carrier support 404, link arms 403 and the first and second rig base frames 300, 301 respectively.
- the entire carrier assembly including carrier 405, drill head 408 and head plate 302 is moved in a forward direction towards boom arm 304 such that when carrier 405 and head 302 are extended vertically upward, the drill head 408 is capable of reaching forward over and above boom arm 304 at a position of the mine roof immediately behind the cutting face creating by cutting head 115.
- the pivotal mounting of second frame 301 at first frame 300 provides a reliable moving mechanism in the harsh working environment immediately behind the cutting face.
- the present rig 118 is further configured to deflect drill or bolt head 408 laterally in a sideways direction relative to central boom 105 via pivoting movement of link arms 403 relative to second frame 301. That is, by actuation of hydraulic cylinder 410, the link arms 403 are displaced from the inboard position of figure 7 to the outboard position of figure 8 . This motion provides a lateral sideways displacement of carrier support 404 and in turn carrier 405 in a direction perpendicular to the longitudinal axis of machine 100 (and boom 105).
- head plate 302 and drill or bolt head 408 is capable of contacting the mine roof at a position immediately above central boom 105 when actuator 410 is retracted to the position of figure 7 and to an extreme outboard position laterally to one side of tracks 113 when actuator 410 is extended as illustrated in figure 8 .
- this pivoting action of link arms 403 is provided by relatively unsophisticated pivot pin and mounting assemblies that are advantageous when employed in the harsh dust laden environment of the miner 100.
- link arms 403 extend either an inclined angle upwardly to the right or to the left (when viewed from the front of machine 100) at the extreme ends of lateral movement (corresponding to a full retraction and full extension of cylinder 410) such that an angle by which the borehole is formed in the mine roof is less than 10° from vertical.
- mounting flange 414 may by rigidly mounted between support 404 and carrier 405 or may be pivotally mounted and adjustable between support 404 and carrier 405 to provide dynamic variation of the angle by which drill head bit 501 may be embedded into the mine roof.
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Environmental & Geological Engineering (AREA)
- Earth Drilling (AREA)
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Abstract
Description
- The present invention relates to a mining machine roof bolting rig configured to secure roof straps to a roof of a mine tunnel and in particular, although not exclusively, to a bolting rig configured to provide a plurality of bolting positions relative to the mining machine via components of the rig tilting back and forth and pivoting in a sideways direction.
- A variety of different methods and machines have been developed to extract minerals and other valuable materials at and below the Earth's surface. Such machines typically operate in mines at great depths.
- In order to maximise excavation and mineral recovery efficiency, mining machines have been developed for specific purposes. Whilst some machines are configured exclusively to cut the mineral from a deposit or seam, other machines are configured to tunnel within the subterranean depth to effectively create the mine and provide passageways for the mineral cutters. In particular, mobile mining machines have emerged as successful apparatus to both provide direct cutting at the seam and as a means of rapid entry roadway development. Typically a mobile mining machine comprises a rotatable cutting or mining head having cutting bits provided on rotating drums to contact the mineral face. The cutting head is conventionally mounted at a moveable boom so as to be adjustable in height relative to the mine floor. As the cutting head is rotated and advanced into the seam, the extracted mineral is gathered by a gathering head and then conveyed rearwardly by the mobile machine via conveying apparatus to create discharged stock piles for subsequent extraction from the mine.
- Continuous bolter miners typically comprise a pair or set of bolting rigs positioned laterally either side of the moveable boom. The rigs are operational to simultaneously bolt roof straps to the roof surface of the mine as the miner is advanced by the cutting head progressing forward through the deposit seam. Conventionally, the roof bolting rigs are tiltably mounted at the main frame of the machine to allow roof bolts to be installed at varying positions across the roof extending over the miner. An alternative configuration is to mount the bolting rigs on a sliding arrangement to allow the drill/bolt head to slide laterally between inner and outer positions across the width of the miner. However, conventional arrangements are typically complex involving a significant number of moving components that, in the dust laden environment in which the miner is operational, require regular maintenance and servicing to avoid failure. Such arrangements however remain susceptible to disruption that can impede the continuous mining and bolting operation. Furthermore, conventional drill rig mounting assemblies are typically bulky arrangements and restrict the capability of the drill head to be positioned as close-as-possible to the main elongate centre of the miner which is desirable. These bulky mountings also prevent the drill rig from being positioned immediately behind the rotating cutting head which is again desirable to support the tunnel surface immediately behind the cutting face. Accordingly, what is required is a roof bolting rig having a mounting assembly that addresses the above problems.
- It is an objective of the present invention to provide a mining machine roof bolting rig and in particular a mounting assembly for a bolting rig that is robust in the operational environment of the miner and allows the drill head to be moved between a plurality of positions including a position very close to the longitudinal centre of the miner, to an extreme laterally outboard position and to a position immediately behind the cutting head.
- The objectives are achieved by providing a roof bolting rig having a first and second component base frame such that the second frame is pivotally mounted at the first to be configured for tilting back and forth relative to the frame and a main frame of the mining machine. This configuration is specifically advantageous to allow the reliable movement of the drill head to a position immediately behind and in close proximity to the cutting head at the region of the tunnel roof. The present invention further comprises at least one link arm that is pivotally mounted to a part of the base frame such that an upper end of the link arm is capable of pivoting laterally in a sideways direction towards and away from the cutting boom of the mining machine. Accordingly, the drill head is therefore capable of being displaced to a position immediately adjacent one side of the cutting boom and to an extreme laterally outward position at one side of the mining machine furthest from the central cutting boom.
- The present drill rig mounting assembly comprises at least one first pivot mounting to couple the first and second base frame components and a further set of pivot mountings associated with the link arms to allow the lateral sideways deflection of the rig. The respective pivot mountings associated with the base and the link arms are preferably aligned perpendicular to one another and spatially separated at different regions of the rig to provide a robust and reliable construction effective over a large range of motion in both the forward and backward and sideways directions. Furthermore, the use of pivot mountings within the rig mounting arrangement is significantly less complex than existing bolting rigs which is advantageous to minimise maintenance and the overall weight of the miner and associated components.
- According to a first aspect of the present invention there is provided a mining machine roof bolting rig comprising: a drill or bolt head for positioning at a roof to secure a roof strap to a mine roof; a first rig base frame mountable at a main frame of a mining machine to couple the rig to the machine; characterised by: a second rig base frame pivotally mounted at the first base frame and configured tilt back and forth relative to the first frame; a carrier support to mount the drill or bolt head; and at least one link arm pivotally mounted at a first end to the second frame and pivotally mounted at a second end to the carrier support, the link arm extending upwardly from the second frame; wherein the pivotal mounting of the link arm is substantially perpendicular or transverse to the pivotal mounting of the second frame at the first frame so that the carrier support is configured to pivot laterally in a sideways direction relative to the first frame.
- Reference within the specification to a 'drill or bolt head' refers to a device configured to create a bore and/or to embed an anchorage bolt, screw, pin or the like into a mine tunnel roof. The head may therefore be a drill unit known in the art or a hammer-like actuator to punch or thrust an elongate element into the roof via a linear motion.
- In one specific implementation, the drill or bolt head is mounted at a shuttle with the shuttle mounted at an elongate carrier. The rig further comprises a drive arrangement configured to move the shuttle upward and downward at the elongate carrier relative to a head plate for positioning at the roof to support the roof strap for bolting to the roof. The shuttle, elongate carrier and drive arrangement may comprise conventional components known in the art. In particular, the elongate carrier may be a telescopic arrangement with the assembly configured to propel the drill (or bolt) head from a lower position substantially at the machine to a raised or elevated position at the head plate to perform the drilling or bolting action. Optionally, the drill rig comprises a chain drive mechanism (to mount the shuttle at the elongate carrier) and at least one linear actuator, optionally being a power operated linear actuator, to drive the telescopic extension of the carrier to both raise and lower the drill or bolt head (and the head plate) in the substantially vertical direction between the mining machine and the miner roof.
- Optionally, the rig further comprises a linear actuator extending between the second frame and the link arm to drive the pivotal movement of the carrier support in the sideways direction. Such an arrangement is advantageous, due to its simple construction to provide reliable operation in the rough dusty environment of a mine. Optionally, a first end of the actuator is attached to an inboard side of the second frame and a second end of the actuator is attached towards an upper end of the link arm. Accordingly, the actuator is configured to provide a direct pushing force to the link arm to maximise power draw efficiency of the actuator. Preferably, the rig further comprises a linear actuator extending between the first frame and the second frame to drive the tilting movement of the second frame back and forth relative to the first frame. Again, the use of a linear actuator for this function provides a robust construction that requires minimum maintenance. Preferably, the linear actuators that drive the i) forward and rearward and ii) lateral side-to-side movement of the second frame and link arm, respectively, comprise power operated cylinders such as hydraulic or pneumatic cylinders conventional to the art. The rig and/or mining machine may further comprise actuator drive components to impart the linear extension and retraction of the cylinders.
- Optionally, the second frame projects upwardly from one end of the first frame. In particular, the second frame may be attached pivotally at the first frame via one end of the second frame. This configuration is beneficial to provide that the drill head component is mounted at the optimum position relative to the rotating cutting head whilst minimising the size and weight of the rig component parts. In particular, a second and uppermost end of the second frame may be configured to pivot from a position substantially vertically above a forwardmost end of the first frame to a position forwardmost of said end of the first frame. Utilising a pivot mounting is advantageous over conventional sliding arrangements that are subject to particulate and dust ingress that in turn accelerates component wear. The pivoting components are effectively shielded from the dusty environment and a reliable and robust coupling is provided accordingly. Attachment of the base frames at their respective ends also increases the range of movement in the forward and rearward direction.
- Preferably, a pivot axis by which the second frame is mounted at the first frame is orientated substantially perpendicular or transverse to a pivot axis by which the link arm is mounted at the second frame such that the carrier support is configured to move in a sideways direction substantially perpendicular or transverse to the forward and backward tilting movement of the second frame. In such a configuration, the movement of components in both the longitudinal and lateral directions does not interfere with one another and accordingly the maximum available reach of the rig in these directions (during bolting operations at the roof) is optimised. Preferably, a pivot axis between the first and the second frame and a pivot axis between the link arm and the second frame are substantially perpendicular. Preferably, the rig comprises two pivot mountings coupling the second frame to the first frame and optionally a single pivot pin extending through the pivot mountings. Utilizing a single pivot pin extending between two pivot mountings provides a robust coupling and eliminates twisting and bending deformations during use. Optionally, the pivot mountings are positioned at respective ends of the first frame and the second frame. As indicated, this configuration is advantageous to maximise the longitudinal and lateral movement to achieve roof bolting as close as possible to the cutting face and the central longitudinal axis of the miner.
- Preferably, the rig comprises two link arms independently pivotally mounted between the second frame and the carrier support. The dual link arm arrangement is effective to stabilise the carrier support to provide control of the lateral sideways movement and the additional working component of the vertically extendable rig including the carrier support, linear actuators, shuttle, drill motor and shuttle drive components. Optionally, the link arms may be arranged parallel or non-parallel to one another and extend upwardly from the second frame. The orientation of the link arms relative to one another may be optimised to ensure components of the rig move in non-touching contact with one another and components of the mining machine without compromising the maximum reach in the longitudinal and lateral directions. Preferably, the at least one link arm is pivotally mounted at the second frame at a position laterally outboard of the position of attachment of the second frame to the first frame. This arrangement is effective to maximise the extension of the rig laterally outward away from the central cutting boom to provide roof bolting over an extended lateral distance at and beyond the lengthwise sides of the mining machine. Accordingly, an upper second end of the at least one link arm is configured to move laterally side-to-side between an inboard side of the first and second frame and an outboard side of the first and second frame and towards and away from a cutting boom of the mining machine that supports the cutting head.
- Preferably, the carrier is mounted directly to the carrier support. Optionally, the carrier is mounted indirectly at the carrier support and/or may be stabilised at the carrier support via at least one attachment (or mounting) flange. Optionally, the attachment flange is adjustably mounted between the carrier and the carrier support to allow variation of the position of the carrier at the carrier support and in particular adjustment of the height of the carrier relative to the first and/or second frame. The adjustable attachment flange is advantageous to allow manual manipulation of the relative height position of the rig at the mining machine to suit a desired tunnel roof height within the mine. For example, the present rig arrangement allows a manual setting of the maximum available reach of the bolting head towards the cutting face and laterally over the centre and to the side of the mining machine as desired.
- According to a second aspect of the present invention there is provided a mining machine or a continuous mining machine comprising at least one roof bolting rig as claimed herein.
- Optionally, the mining machine is a continuous bolter miner. Optionally, the mining machine may comprise at least two roof bolting rigs mounted at a forward end of a main frame of the mining machine, the rigs positioned laterally to each side of a cutting boom projecting forwardly at the mining machine and mounting a cutting head. That is, the mining machine may comprise a plurality of roof bolting rigs mounted laterally at each side of the central cutting boom. Optionally, each of the plurality of rigs may be mounted at a common first frame such that the mining machine comprises a plurality of second frames each pivotally mounted at the common first frame. Such an arrangement may reduce the effective number of working components of the rig and/or mining machine to reduce maintenance and provide a simple, reliable and robust construction.
- Preferably, the rigs are positioned immediately behind the cutting head. Preferably, at least one rig is positioned immediately adjacent one side of the central cutting boom. The relative positioning of the rig with respect to the cutting head and cutting boom is advantageous to allow roof bolting substantially at the longitudinal centre of the machine and at or immediately behind the cutting face so as to stabilise the roof and avoid undesirable collapse during and post cutting.
- A specific implementation of the present invention will now be described, by way of example only, and with reference to the accompanying drawings in which:
-
Figure 1 is an external perspective view of a continuous bolter miner having a drill or bolt rig mounted laterally to one side of a central cutting boom to support the cutting head according to a specific implementation of the present invention; -
Figure 2 is an external side elevation of the bolter miner offigure 1 ; -
Figure 3 is a plan view of the bolter miner offigure 2 ; -
Figure 4 is an external rear perspective view of the bolting rig assembly offigures 1 to 3 ; -
Figure 5 is a plan view of the bolting rig assembly offigure 4 ; -
Figure 6 is a further rear perspective view of the bolting rig assembly offigure 5 ; -
Figure 7 is a view from the front of the miner with the cutting head and cutting boom removed for illustrative purposes with the rig configured to be positioned at an extreme inboard position for bolting at a central position of the miner; -
Figure 8 is a further front perspective view of the rig offigure 7 configured in an extreme outboard position for bolting at a laterally outward position remote from the central cutting boom. - Referring to
figure 1 , themining machine 100 comprises amain frame 101 that provides support for an undercarriage orchassis 109 that supports a pair of endless driventracks 113 for propelling themachine 100 over the ground and along a tunnel to advance forwardly through a material deposit seam.Main frame 101 comprises a generally forward end 102 and a generallyrearward end 103. Aconveyor 104 extends substantially from forward end 102 torearward end 103 and is adapted to carry material dislodged from the cutting face for subsequent discharge and stock piling at a remote location optionally using additional conveying and mining apparatus. Amovable cutting boom 105 is pivotally mounted at oneend 112 via apivoting bracket 110 tomain frame 101 and comprises asecond end 106 mounting a cuttinghead 115 that in turn mounts a plurality ofrotatable drums 107. Cuttingbits 108 project radially from eachdrum 107 and are specifically adapted to cut into and dislodge the mineral material to be mined from the seam.Boom 105 and inparticular end 106 is capable of being raised or lowered relative tomain frame 101 andendless tracks 113 to enablemachine 100 to cut the seam face over a varying height range above the ground of the mine tunnel.Boom 105 is operated by hydraulic rams 201 (referring tofigure 2 ) and other associated components as will be appreciated by those skilled in the art. - A
canopy 111 comprises a vertically uppermost region having a generally planar configuration and is adapted for being raised vertically upward fromframe 101 in a manner similar to cuttingboom 105 so as to contact the mine roof to provide structural support as necessary during the cutting and roof bolting operations. Additionally, atail section 114 projects rearwardly from therearward end 103 offrame 101 to carryrearwardly conveyor 104 to adischarge end 116 representing a rearward most part of thecontinuous machine 100.Machine 100 further comprises agathering head 117 mounted at forward end 102 via a head mounting bracket 200 (referring tofigure 2 ).Head 117 is configured to collect material removed from the deposit seam by the cutting action ofhead 115. The cut material is then transported rearwardly ofmachine 100 viaconveyor 104. - As illustrated in
figures 3 to 8 ,machine 100 further comprises a roof bolting rig indicated generally byreference 118 and mounted at the forward end 102 offrame 101 laterally to one side of cuttingboom 105.Rig 118 is positioned immediately behind aboom arm 304 that extends laterally to one side of thecentral boom 105 and immediately behind cuttinghead 115.Rig 118 comprises afirst base frame 300 rigidly attached to frame 101 and projecting forwardly fromframe 101. Asecond frame 301 extends upwardly from one end offrame 300 to mount the remaining components of the rig, as described in further detail below, including in particular ahead plate 302 configured for positioning in contact with the roof of the mine to support a roof strap for bolting to the roof by therig 118. As illustrated infigure 3 , rig 118 is positioned laterally to oneside 303 of cuttingboom 105. - Referring to
figure 4 ,first frame 300 is rigidly attached to the forwardmost end of themain frame 101 via anchorage mounts 402. As illustrated infigure 7 ,second frame 301 is pivotally attached at afirst end 705 to a second end offirst frame 300 via a pivot mounting arrangement. In particular, the pivotal coupling offirst frame 300 tosecond frame 301 is achieved via asingle pivot pin 704 extending through a first pivot mounting 707 and a second pivot mounting 703. In particular, first pivot mounting 707 is positioned at an inboard side of first andsecond frames second frames central cutting boom 105. - At a fully retracted position illustrated in
figures 3 to 8 , a plane ofsecond frame 301 is aligned perpendicular to a plane offirst frame 300. A manualadjustable spindle 411 is attached at respective ends tofirst frame 300 andsecond frame 301 such that by linear extension,frame 301 is configured to pivot forwardly viapin 704. - Second frame provides a mounting region for a pair of
link arms 403 that extend upwardly from asecond end 706 offrame 301. Eachlink arm 403, a lowermost region, comprises a bore (not shown) to receive apivot pin 413 such that eacharm 403 is capable of lateral sideways pivoting movement about eachrespective pin 413 relative to frame 301. Afirst link arm 403 comprises a substantially straight configuration and is positioned laterally closest toside 303 ofboom 105. Anoutboard link arm 403 comprises a generally dog-leg configuration having amain length 700 and a relatively shorter angledsecond length 701 that extends in the outboard direction frommain length 700 away fromboom 105. - A hydraulic
linear actuator 410 comprises afirst end 417 mounted at aninboard side 416 offrame 301 and asecond end 418 mounted towards the upper end of theinboard link arm 403 via a mountingflange 500.Link arms 403 are coupled at their uppermost regions by pivotal attachment to acarrier support 404 via respective pivot pins 702 extending throughrespective pivot mountings 412 atsupport 404 and respective bores (not shown) extending through the upper ends of eachlink arm 403.Mountings 412 are positioned at anuppermost region 419 ofsupport 404. - The
bolting rig 118 further comprises anelongate carrier 405 being a telescopic carrier arrangement known in the art in which ashuttle 406 is slidably mounted at a plurality of runners (at carrier 405) to allowshuttle 406 to move in the upright direction fromfirst frame 300.Carrier 405 typically comprises a chain drive mechanism and a plurality oflinear actuators head plate 302 such that when powered,head 302 is capable of being displaced in the upward direction to contact the mine roof followed by the upward movement ofshuttle 406 alongcarrier 405 towardshead 302.Shuttle 406 comprises adrill head 408 and asuitable drive motor 407.Drill head 408 comprises a drill orbolt bit 501 for boring into the mine roof to enable anchorage of a screw or bolt element to secure the roof strap at the roof. Thecarrier 405 and shuttle assembly 406 (including plate head 302) is mounted atcarrier support 404 via anintermediate mounting flange 414. Abrace 415 provided atsupport 404 allows adjustable mounting offlange 414 to provide positional adjustment in the upright direction (from first frame 300) ofcarrier 405 atsupport 404. - Accordingly, the drill or
bolt head 408 is coupled tomain frame 101 via mountingflange 414,carrier support 404, linkarms 403 and the first and second rig base frames 300, 301 respectively. Via actuation of manualadjustable spindle 411, the entire carrierassembly including carrier 405,drill head 408 andhead plate 302 is moved in a forward direction towardsboom arm 304 such that whencarrier 405 andhead 302 are extended vertically upward, thedrill head 408 is capable of reaching forward over and aboveboom arm 304 at a position of the mine roof immediately behind the cutting face creating by cuttinghead 115. Advantageously, the pivotal mounting ofsecond frame 301 atfirst frame 300 provides a reliable moving mechanism in the harsh working environment immediately behind the cutting face. - The
present rig 118 is further configured to deflect drill orbolt head 408 laterally in a sideways direction relative tocentral boom 105 via pivoting movement oflink arms 403 relative tosecond frame 301. That is, by actuation ofhydraulic cylinder 410, thelink arms 403 are displaced from the inboard position offigure 7 to the outboard position offigure 8 . This motion provides a lateral sideways displacement ofcarrier support 404 and inturn carrier 405 in a direction perpendicular to the longitudinal axis of machine 100 (and boom 105). Accordingly,head plate 302 and drill orbolt head 408 is capable of contacting the mine roof at a position immediately abovecentral boom 105 whenactuator 410 is retracted to the position offigure 7 and to an extreme outboard position laterally to one side oftracks 113 whenactuator 410 is extended as illustrated infigure 8 . Again, this pivoting action oflink arms 403 is provided by relatively unsophisticated pivot pin and mounting assemblies that are advantageous when employed in the harsh dust laden environment of theminer 100. As illustrated infigures 7 and8 , linkarms 403 extend either an inclined angle upwardly to the right or to the left (when viewed from the front of machine 100) at the extreme ends of lateral movement (corresponding to a full retraction and full extension of cylinder 410) such that an angle by which the borehole is formed in the mine roof is less than 10° from vertical. In one aspect, mountingflange 414 may by rigidly mounted betweensupport 404 andcarrier 405 or may be pivotally mounted and adjustable betweensupport 404 andcarrier 405 to provide dynamic variation of the angle by whichdrill head bit 501 may be embedded into the mine roof.
Claims (14)
- A mining machine roof bolting rig (118) comprising:a drill or bolt head (408) for positioning at a roof to secure a roof strap to a mine roof;a first rig base frame (300) mountable at a main frame (101) of a mining machine (100) to couple the rig (118) to the machine (100);characterised by:a second rig base frame (301) pivotally mounted at the first base frame (300) and configured to tilt back and forth relative to the first frame (300);a carrier support (404) to mount the drill or bolt head (408); andat least one link arm (403) pivotally mounted at a first end to the second frame (301) and pivotally mounted at a second end to the carrier support (404), the link arm (403) extending upwardly from the second frame (301);wherein the pivotal mounting of the link arm (403) is substantially perpendicular or transverse to the pivotal mounting of the second frame (301) at the first frame (300) so that the carrier support (404) is configured to pivot laterally in a sideways direction relative to the first frame (300).
- The rig as claimed in claim 1 further comprising a linear actuator (410) extending between the second frame (301) and the link arm (403) to drive the pivotal movement of the carrier support (404) in the sideways direction.
- The rig as claimed in claim 2 wherein a first end (417) of the actuator (410) is attached to an inboard side of the second frame (301) and a second end (418) of the actuator (410) is attached towards an upper end of the link arm (403).
- The rig as claimed in any preceding claim further comprising a manual adjustable spindle (411) extending between the first frame (300) and the second frame (301) to drive the tilting movement of the second frame (301) back and forth relative to the first frame (300).
- The rig as claimed in claims 2 and 4 wherein the linear actuator (410) and the manual adjustable spindle (411) each one comprise a power operated cylinder.
- The rig as claimed in any preceding claim wherein the second frame (301) projects upwardly from one end of the first frame (300).
- The rig as claimed in any preceding claim wherein a pivot axis by which the second frame (301) is mounted at the first frame (300) is orientated substantially perpendicular or transverse to a pivot axis by which the link arm (403) is mounted at the second frame (301) such that the carrier support (404) is configured to move in a sideways direction substantially perpendicular or transverse to the forward and backward tilting movement of the second frame (301).
- The rig as claimed in any preceding claim comprising two pivot mountings (707, 703) coupling the second frame (301) to the first frame (300).
- The rig as claimed in any preceding claim comprising two link arms (403) independently pivotally mounted between the second frame (301) and the carrier support (404).
- The rig as claimed in any preceding claim wherein the drill or bolt head (408) is mounted at a shuttle (406) and the shuttle (406) is mounted at an elongate carrier (405); and
the rig (118) further comprises a drive arrangement configured to move the shuttle upward and downward at the elongate carrier (405) relative to a head plate (302) for positioning at the roof to support the roof strap for bolting to the roof. - The rig as claimed in claim 10 wherein the elongate carrier (405) is mounted at the carrier support (404) via a mounting flange (414).
- A mining machine or a continuous mining machine (100) comprising at least one roof bolting rig (118) as claimed in any preceding claim.
- The mining machine as claimed in claim 12 comprising at least two roof bolting rigs (118) mounted at a forward end (102) of a main frame (101) of the mining machine (100), the rigs (118) positioned laterally to each side of a cutting boom (105) projecting forwardly at the mining machine (100) and mounting a cutting head (115).
- The mining machine as claimed in claim 13 wherein the rigs (118) are positioned immediately behind the cutting head (115).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13175089.5A EP2821591B1 (en) | 2013-07-04 | 2013-07-04 | Mining machine roof bolting rig |
PCT/EP2014/062917 WO2015000712A2 (en) | 2013-07-04 | 2014-06-19 | Mining machine roof bolting rig |
RU2016103381A RU2643053C2 (en) | 2013-07-04 | 2014-06-19 | Machine for fastening bolts of mining machine roof |
CN201420369221.1U CN204283458U (en) | 2013-07-04 | 2014-07-04 | Digger tunnel top roof bolting machine and digger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13175089.5A EP2821591B1 (en) | 2013-07-04 | 2013-07-04 | Mining machine roof bolting rig |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2821591A1 true EP2821591A1 (en) | 2015-01-07 |
EP2821591B1 EP2821591B1 (en) | 2015-09-16 |
Family
ID=48703340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13175089.5A Not-in-force EP2821591B1 (en) | 2013-07-04 | 2013-07-04 | Mining machine roof bolting rig |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2821591B1 (en) |
CN (1) | CN204283458U (en) |
RU (1) | RU2643053C2 (en) |
WO (1) | WO2015000712A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106194002A (en) * | 2016-07-07 | 2016-12-07 | 陶德明 | Large diameter drill string tunnel escape and rescue rig |
CN113756713A (en) * | 2021-08-30 | 2021-12-07 | 山东君德智能装备有限公司 | Combine and dig brill dress all-in-one suitable for mine terminal surface in pit |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
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CA3115588A1 (en) | 2012-09-14 | 2014-03-20 | Joy Global Underground Mining Llc | Cutter head for mining machine |
BR112018015466B1 (en) | 2016-01-27 | 2023-10-17 | Joy Global Underground Mining Llc | MINING MACHINE |
US10876400B2 (en) | 2016-08-19 | 2020-12-29 | Joy Global Underground Mining Llc | Mining machine with articulating boom and independent material handling system |
CN109844262B (en) | 2016-08-19 | 2021-07-16 | 久益环球地下采矿有限责任公司 | Cutting device and support thereof |
US11391149B2 (en) | 2016-08-19 | 2022-07-19 | Joy Global Underground Mining Llc | Mining machine with articulating boom and independent material handling system |
PE20190551A1 (en) * | 2016-09-23 | 2019-04-16 | Joy Global Underground Mining Llc | ROCK CUTTING DEVICE |
CN107217986B (en) * | 2017-07-27 | 2024-01-19 | 中国铁建重工集团股份有限公司 | Horizontal rotary spraying drilling machine and connecting structure for drilling machine arm support |
WO2020023771A1 (en) | 2018-07-25 | 2020-01-30 | Joy Global Underground Mining Llc | Rock cutting assembly |
RU196501U1 (en) * | 2019-07-01 | 2020-03-03 | Акционерное Общество "Копейский Машиностроительный Завод" | LOADING TABLE OF SHIELD TYPE OF MINING COMBINE |
CN110454205B (en) * | 2019-07-31 | 2020-11-24 | 太原理工大学 | Automatic rod feeding device of jumbolter for coal mine |
RU197766U1 (en) * | 2019-08-08 | 2020-05-28 | Акционерное Общество "Копейский Машиностроительный Завод" | MINING EXECUTIVE BODY |
CN114215476B (en) * | 2021-12-31 | 2023-11-24 | 中国水利水电第十工程局有限公司 | Stable jumbolter suitable for 50 meters high altitude |
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DE2424359A1 (en) * | 1974-05-20 | 1975-12-04 | Gewerk Eisenhuette Westfalia | Mine roof support tilting mechanism - jacks allow a prop to swing both sideways and forward |
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-
2013
- 2013-07-04 EP EP13175089.5A patent/EP2821591B1/en not_active Not-in-force
-
2014
- 2014-06-19 RU RU2016103381A patent/RU2643053C2/en not_active IP Right Cessation
- 2014-06-19 WO PCT/EP2014/062917 patent/WO2015000712A2/en active Application Filing
- 2014-07-04 CN CN201420369221.1U patent/CN204283458U/en not_active Expired - Fee Related
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DE2424359A1 (en) * | 1974-05-20 | 1975-12-04 | Gewerk Eisenhuette Westfalia | Mine roof support tilting mechanism - jacks allow a prop to swing both sideways and forward |
DE3108877C2 (en) * | 1980-03-27 | 1983-10-13 | Vereinigte Edelstahlwerke Ag (Vew), Wien | Anchor drilling and anchor setting device assigned to a tunneling machine |
US5016942A (en) * | 1989-04-07 | 1991-05-21 | Sony Corporation | Anchor boring unit |
US20030111892A1 (en) * | 2001-12-13 | 2003-06-19 | Joy Mm Delaware Inc. | Method of mining and an improved mining machine with a shovel moveable relative to a vehicle chassis |
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CN106194002A (en) * | 2016-07-07 | 2016-12-07 | 陶德明 | Large diameter drill string tunnel escape and rescue rig |
CN106194002B (en) * | 2016-07-07 | 2019-06-11 | 陶德明 | Large diameter drill string tunnel escape and rescue drilling machine |
CN113756713A (en) * | 2021-08-30 | 2021-12-07 | 山东君德智能装备有限公司 | Combine and dig brill dress all-in-one suitable for mine terminal surface in pit |
Also Published As
Publication number | Publication date |
---|---|
WO2015000712A2 (en) | 2015-01-08 |
EP2821591B1 (en) | 2015-09-16 |
RU2643053C2 (en) | 2018-01-30 |
RU2016103381A (en) | 2017-08-09 |
CN204283458U (en) | 2015-04-22 |
WO2015000712A3 (en) | 2015-10-01 |
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