WO2010079403A1 - Roof bolting drill rig including a magnetic coupling - Google Patents

Roof bolting drill rig including a magnetic coupling Download PDF

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Publication number
WO2010079403A1
WO2010079403A1 PCT/IB2009/055953 IB2009055953W WO2010079403A1 WO 2010079403 A1 WO2010079403 A1 WO 2010079403A1 IB 2009055953 W IB2009055953 W IB 2009055953W WO 2010079403 A1 WO2010079403 A1 WO 2010079403A1
Authority
WO
WIPO (PCT)
Prior art keywords
drill
support member
drill rig
rig
securing means
Prior art date
Application number
PCT/IB2009/055953
Other languages
French (fr)
Inventor
Robert Charles Gradidge
Petrus Hendrik Roodt
Original Assignee
Robert Charles Gradidge
Petrus Hendrik Roodt
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Charles Gradidge, Petrus Hendrik Roodt filed Critical Robert Charles Gradidge
Publication of WO2010079403A1 publication Critical patent/WO2010079403A1/en
Priority to ZA2011/05119A priority Critical patent/ZA201105119B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E21B15/006—Means for anchoring the drilling machine to the ground

Definitions

  • This invention relates to a drill rig or drill driver and more particularly, but not exclusively, to a drill rig for roof bolting applications in underground mining operations.
  • the hanging walls in underground mines are supported by props or roof bolts.
  • Roof bolts are inserted in holes drilled into a hanging wall.
  • Drill rigs are used to drill the holes in confined spaces such as in the hanging wall of a stope.
  • the rig supports the drill and includes some drive means to drive the drill upwards.
  • Prior art drill rigs include pneumatically extendable supports to which a drill drive means is attached.
  • Drills drive means are pneumatically or hydraulically movable substantially parallel up and down next to such supports to effect the drilling of holes.
  • a drill rig comprising an elongate extendable support member and a drill securing means, a drive means to move the drill securing means along at least part of the support, the drive means including magnetic coupling means.
  • the drill securing means is slidably movable along the support member.
  • the elongate support has a telescoping member movable into or out of the support member to secure the support member between a footwall and a hanging wall of an underground mining operation.
  • a first magnet of the magnetic coupling means interacts with a second magnet of the coupling contained within a hydraulic or pneumatic cavity incorporated in the elongate support member.
  • the elongate support member includes a hollow cylinder to receive the telescoping member therein.
  • the telescoping member is hydraulically movable into or out of the support member.
  • the telescoping member is pneumatically movable into or out of the support member.
  • the rig includes a transceiver for receiving signals from a remote control unit.
  • the drill securing means is rotatable about the support member to enable rotation of a drill attached thereto so that drilling can be done at different positions about the rig.
  • the drill securing means includes securing means to secure it in a rotated position.
  • the securing means is a rod engageable through a hole in a guide means and into a hole on the support.
  • the rotation of the drill attachment part is remotely controllable, with a second drive means.
  • the drive means is pneumatically or hydraulically operable.
  • Figure 1 is a perspective view of a roof bolting drill rig
  • Figure 2 is a part cross-sectional side view of the drill rig of figure 1 with a telescopic support member in its retracted position;
  • Figure 3 is the same view of the drill rig of figure 2, with its telescopic support member in its extended position.
  • a drill rig is generally indicated by reference numeral 10.
  • the drill rig 10 has an elongate support member 11.
  • the support member consists of an outer tube 32 and an inner smaller diameter concentric tube 31 so that a ring-shaped magnet 12 fits in the space between the two tubes.
  • the magnet is slidably moveable in this space.
  • Ring-shaped tube sealing sections 30 are located in the space, above and below the magnet 12. These tube sections are movable with the magnet.
  • the magnet and ring sections 30 divide the space between the tubes 31 and 32 in pneumatic or hydraulic magnet cavities.
  • a telescoping rod 16 is slidably and telescopically movable, co-axially in and out of the inner tube 31.
  • a ring seal 36 located around the rod 16 divides a space between the rod and the inside of the inner tube in upper and lower pneumatic or hydraulic rod cavities.
  • both tubes terminate at, and are sealed off by, an end cap 19, that forms the lower end 17 of the support 11.
  • a pump 35 is in fluid communication with the upper and lower pneumatic or hydraulic magnet and rod cavities.
  • the rod 16 In use, by operating the pump, the rod 16 is selectively movable into or out of the tube 31. When it moves out, it may engage with a hanging wall whilst the support member's lower end cap 19 rests on the foot wall.
  • the support 11 thus forms a removable prop to support itself and the hanging wall during drilling of holes for rock bolts as described below.
  • the support member 11 includes a wheel support that extends radially outwardly from its lower end with wheels attached thereto. The wheels are located to the side of the lower end of the support 11 and will not meet with a horizontal surface on which the support rests when it is in an upright position.
  • a plug 24 closes and seals off the front or upper end 18 of the support member 11 , the ends of tubes 31 , 32 and between the rod 16 and tube 31.
  • the plug 24 has an aperture 25 in its centre for the rod 16 to protrude and slidably move up and down therethrough.
  • the drill rig further includes a transceiver 38 to receive control signals from a remote communication means 39.
  • the remote communication means 39 is a wireless device that communicates with the transceiver 38 from a distance, such as from a control station so that the drilling operation can be remotely controlled. In this way the pump as well as rotation means, to rotate a block or drill attachment means 13 about the tube 32.
  • a drill attachment or securing means 13 is a block with a bore 28 therethrough so it may slide up and down over the outer tube 32.
  • One side of the block is curved to compliment the shape of the tube 32 around which it is fitted.
  • the other side of the tube has a flat vertical surface 15 with screw threaded blind holes 29 therein. The rock drill is attachable to this surface with bolts screwed into the holes 29.
  • the block 13 can also rotate about the tube 3, and can be secured at such desired position.
  • Ring shaped magnets 14 are embedded in the inside surface of the bore 28. These two magnets are located above and below a horizontal plane of the magnet 12. The magnets form a magnetic coupling, and together with the pump and hydraulic or pneumatic magnet cavities forms a drive means.
  • the pump 35 is used to move the magnet 12 up and down inside the cavity between the tubes 31 , 32.
  • the magnetic force between the magnets 12, 14 causes the block to move up and down with the movement of the magnet 12.
  • the magnets 12 co-operate with the magnets 14 to create a magnetic force which drives the drill (not shown).
  • the magnets 12 are located between the outer and inner sidewalls (31 and 32) of the support member 11 and form part of a tube section 30.
  • the tube section 30 surrounds a part of the rod 16 so that the magnets 12 abuts the inner surface of the outer sidewall 31 and the outer surface of the inner sidewall 32.
  • the rod 16 is hydraulically or pneumatically pushed onto the hanging wall of a mine in order to secure the support member 11 in an upright position and offer support between the hanging wall and foot wall.
  • a mine drill is secured to the block 13.
  • the magnetic force between magnets 12 and 14 drives the drill up along the support member, when the pump is operated to drive the magnet 12 upwards or downwards, so that the necessary drilling can be done in the hanging wall.
  • the handle also acts as a guide means 37 for guiding or securing the drill to and to assist with rotation of the block and drill about the tube 32 so that drilling can be done at different positions around the rig.
  • a securing means in the form of a rod 50 may be inserted through a hole in the handle and into any one of a number of holes 51 in the member 11 to secure the block 13 at a desired rotation. This method of drilling is much more convenient and safer.
  • the rig described herein will allow for an enhanced drill stroke as the block can be moved far down the member 12, almost to the floor.
  • the magnets, together with control circuiting allows for strong and precise control.
  • the wireless remote control also allows for safer remote operation.

Landscapes

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

Abstract

This invention relates to a drill rig (10) or drill driver and more particularly, but not exclusively, to a drill rig for roof bolting applications underground. In accordance with this invention there is provided an elongate support member (11), a magnetic drive unit (12, 14) with an attachment means (13) for securing a rock drill machine thereto and being able to travel along the elongate support member (11) under magnetic force.

Description

ROOF BOLTING DRILL RIG INCLUDING A MAGNETIC COUPLING
FIELD OF THE INVENTION
This invention relates to a drill rig or drill driver and more particularly, but not exclusively, to a drill rig for roof bolting applications in underground mining operations.
BACKGROUND
The hanging walls in underground mines are supported by props or roof bolts.
Roof bolts are inserted in holes drilled into a hanging wall.
Drill rigs are used to drill the holes in confined spaces such as in the hanging wall of a stope. The rig supports the drill and includes some drive means to drive the drill upwards.
Prior art drill rigs include pneumatically extendable supports to which a drill drive means is attached. Drills drive means are pneumatically or hydraulically movable substantially parallel up and down next to such supports to effect the drilling of holes. OBJECT OF THE INVENTION
It is an object of the invention to provide a drill rig of the type described above.
SUMMARY OF THE INVENTION
In accordance with this invention there is provided a drill rig comprising an elongate extendable support member and a drill securing means, a drive means to move the drill securing means along at least part of the support, the drive means including magnetic coupling means.
The drill securing means is slidably movable along the support member.
The elongate support has a telescoping member movable into or out of the support member to secure the support member between a footwall and a hanging wall of an underground mining operation.
A first magnet of the magnetic coupling means interacts with a second magnet of the coupling contained within a hydraulic or pneumatic cavity incorporated in the elongate support member.
The elongate support member includes a hollow cylinder to receive the telescoping member therein. The telescoping member is hydraulically movable into or out of the support member.
Alternatively, the telescoping member is pneumatically movable into or out of the support member.
The rig includes a transceiver for receiving signals from a remote control unit.
The drill securing means is rotatable about the support member to enable rotation of a drill attached thereto so that drilling can be done at different positions about the rig.
The drill securing means includes securing means to secure it in a rotated position.
The securing means is a rod engageable through a hole in a guide means and into a hole on the support.
The rotation of the drill attachment part is remotely controllable, with a second drive means.
The drive means is pneumatically or hydraulically operable.
These and other features are described in more detail below. BRIEF DESCRIPTION OF THE DRAWINGS
One embodiment of the invention will be described below by way of a non- limiting example only, with reference to the accompanying drawings in which:
Figure 1 is a perspective view of a roof bolting drill rig;
Figure 2 is a part cross-sectional side view of the drill rig of figure 1 with a telescopic support member in its retracted position; and
Figure 3 is the same view of the drill rig of figure 2, with its telescopic support member in its extended position.
DETAILED DESCRIPTION OF THE DRAWINGS
With reference to the accompanying drawings, a drill rig is generally indicated by reference numeral 10.
The drill rig 10 has an elongate support member 11. The support member consists of an outer tube 32 and an inner smaller diameter concentric tube 31 so that a ring-shaped magnet 12 fits in the space between the two tubes. The magnet is slidably moveable in this space. Ring-shaped tube sealing sections 30 are located in the space, above and below the magnet 12. These tube sections are movable with the magnet. The magnet and ring sections 30 divide the space between the tubes 31 and 32 in pneumatic or hydraulic magnet cavities.
A telescoping rod 16 is slidably and telescopically movable, co-axially in and out of the inner tube 31.
A ring seal 36 located around the rod 16 divides a space between the rod and the inside of the inner tube in upper and lower pneumatic or hydraulic rod cavities.
The lower ends of both tubes terminate at, and are sealed off by, an end cap 19, that forms the lower end 17 of the support 11.
A pump 35 is in fluid communication with the upper and lower pneumatic or hydraulic magnet and rod cavities.
In use, by operating the pump, the rod 16 is selectively movable into or out of the tube 31. When it moves out, it may engage with a hanging wall whilst the support member's lower end cap 19 rests on the foot wall.
The support 11 thus forms a removable prop to support itself and the hanging wall during drilling of holes for rock bolts as described below. The support member 11 includes a wheel support that extends radially outwardly from its lower end with wheels attached thereto. The wheels are located to the side of the lower end of the support 11 and will not meet with a horizontal surface on which the support rests when it is in an upright position.
This, together with a handle 37, at the upper end 18 of the support, allows for ease of movement of the support 11 when in a substantially horizontal or inclined position and resting on the wheels.
A plug 24, closes and seals off the front or upper end 18 of the support member 11 , the ends of tubes 31 , 32 and between the rod 16 and tube 31. The plug 24 has an aperture 25 in its centre for the rod 16 to protrude and slidably move up and down therethrough.
The drill rig further includes a transceiver 38 to receive control signals from a remote communication means 39. The remote communication means 39 is a wireless device that communicates with the transceiver 38 from a distance, such as from a control station so that the drilling operation can be remotely controlled. In this way the pump as well as rotation means, to rotate a block or drill attachment means 13 about the tube 32.
A drill attachment or securing means 13 is a block with a bore 28 therethrough so it may slide up and down over the outer tube 32. One side of the block is curved to compliment the shape of the tube 32 around which it is fitted. The other side of the tube has a flat vertical surface 15 with screw threaded blind holes 29 therein. The rock drill is attachable to this surface with bolts screwed into the holes 29.
The block 13 can also rotate about the tube 3, and can be secured at such desired position.
Ring shaped magnets 14 are embedded in the inside surface of the bore 28. These two magnets are located above and below a horizontal plane of the magnet 12. The magnets form a magnetic coupling, and together with the pump and hydraulic or pneumatic magnet cavities forms a drive means.
The pump 35 is used to move the magnet 12 up and down inside the cavity between the tubes 31 , 32. The magnetic force between the magnets 12, 14 causes the block to move up and down with the movement of the magnet 12.
The magnets 12 co-operate with the magnets 14 to create a magnetic force which drives the drill (not shown). The magnets 12 are located between the outer and inner sidewalls (31 and 32) of the support member 11 and form part of a tube section 30. The tube section 30 surrounds a part of the rod 16 so that the magnets 12 abuts the inner surface of the outer sidewall 31 and the outer surface of the inner sidewall 32.
In use, the rod 16 is hydraulically or pneumatically pushed onto the hanging wall of a mine in order to secure the support member 11 in an upright position and offer support between the hanging wall and foot wall. Once or before the support member 11 is in its secured position, a mine drill is secured to the block 13. The magnetic force between magnets 12 and 14 drives the drill up along the support member, when the pump is operated to drive the magnet 12 upwards or downwards, so that the necessary drilling can be done in the hanging wall. The handle also acts as a guide means 37 for guiding or securing the drill to and to assist with rotation of the block and drill about the tube 32 so that drilling can be done at different positions around the rig. A securing means in the form of a rod 50 may be inserted through a hole in the handle and into any one of a number of holes 51 in the member 11 to secure the block 13 at a desired rotation. This method of drilling is much more convenient and safer.
It is envisaged that the rig described herein will allow for an enhanced drill stroke as the block can be moved far down the member 12, almost to the floor. The magnets, together with control circuiting allows for strong and precise control. The wireless remote control also allows for safer remote operation.
It will be appreciated by those skilled in the art that various alternative embodiments are possible without departing from the scope of the invention.

Claims

CLAIMS:
1. A drill rig comprising an elongate extendable support member and a drill securing means, a drive means to move the drill securing means along at least part of the support, the drive means including magnetic coupling means.
2. A drill rig as claimed in claim 1 in which the drill securing means is slidably movable along the support member.
3. A drill rig as claimed in any one of the preceding claims in which the elongate support has a telescoping member movable into or out of the support member to secure the support member between a footwall and a hanging wall of an underground mining operation.
4. A drill rig as claimed in any one of the preceding claims in which a first magnet of the magnetic coupling means interacts with a second magnet of the coupling contained within a hydraulic or pneumatic cavity incorporated in the elongate support member.
5. A drill rig as claimed in any one of claims 3 to 4 in which the elongate support member includes a hollow cylinder to receive the telescoping member therein.
6. A drill rig as claimed in any one of claims 3 to 5 in which the telescoping member is hydraulically movable into or out of the support member.
7. A drill rig as claimed in any one of claims 3 to 5 in which the telescoping member is pneumatically movable into or out of the support member.
8. A drill rig as claimed in any one of the preceding claims in which the rig includes a transceiver for receiving signals from a remote control unit.
9. A drill rig as claimed in any one of the preceding claims in which the drill securing means is rotatable about the support member to enable rotation of a drill attached thereto so that drilling can be done at different positions about the rig.
10. A drill rig as claimed in any one of the preceding claims in which the drill securing means includes securing means to secure it in a rotated position.
11. A drill rig as claimed in claim 10 in which the securing means is a rod engageable through a hole in a guide means and into a hole on the support.
12. A drill rig as claimed in any one of claims 9 to 11 in which the rotation of the drill attachment part is remotely controllable, with a second drive means.
13. A drill rig as claimed in any one of the preceding claims in which the drive means is pneumatically or hydraulically operable.
PCT/IB2009/055953 2009-01-12 2009-12-24 Roof bolting drill rig including a magnetic coupling WO2010079403A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA2011/05119A ZA201105119B (en) 2009-01-12 2011-07-12 Roof bolting drill rig including a magnetic coupling

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200900226 2009-01-12
ZA2009/00226 2009-01-12

Publications (1)

Publication Number Publication Date
WO2010079403A1 true WO2010079403A1 (en) 2010-07-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/055953 WO2010079403A1 (en) 2009-01-12 2009-12-24 Roof bolting drill rig including a magnetic coupling

Country Status (2)

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WO (1) WO2010079403A1 (en)
ZA (1) ZA201105119B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012098492A2 (en) 2011-01-17 2012-07-26 Stratabolt (Proprietary) Limited Drill rig
WO2015010462A1 (en) * 2013-07-26 2015-01-29 中国矿业大学 Drilling and draining integrated floor anchoring driller
EP3228813A1 (en) * 2016-04-06 2017-10-11 Hawle Water Technology Norge AS Magnetic propulsion system and/or counter hold for a drilling system
WO2019043641A1 (en) 2017-08-31 2019-03-07 Gst Research And Development (Pty) Ltd. Drilling apparatus
CN109441506A (en) * 2019-01-14 2019-03-08 马振凯 Flip-over type integrates roofbolt drilling machine and method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1868373A (en) * 1929-03-28 1932-07-19 Gardner Denver Co Rock drill support
US2584246A (en) * 1948-06-17 1952-02-05 Ingersoll Rand Co Percussion tool
DE1002263B (en) * 1955-02-24 1957-02-14 Nuesse & Graefer Kommandit Ges Return device for boring bar guides on drilling machines
US2955572A (en) * 1958-01-31 1960-10-11 Westinghouse Air Brake Co Telescopic feed leg for hydraulic tools
SU540032A1 (en) * 1975-02-18 1976-12-25 Горловский Филиал Донецкого Ордена Трудового Красного Знамени Политехнического Института Burov machine
SU962606A1 (en) * 1980-09-24 1982-09-30 Улб-Банскы Выскумны Устав (Инопредприятие) Equipment for rotary drilling of rock
SU1756553A1 (en) * 1990-06-22 1992-08-23 Специальное конструкторское бюро самоходного горного оборудования Drilling machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1868373A (en) * 1929-03-28 1932-07-19 Gardner Denver Co Rock drill support
US2584246A (en) * 1948-06-17 1952-02-05 Ingersoll Rand Co Percussion tool
DE1002263B (en) * 1955-02-24 1957-02-14 Nuesse & Graefer Kommandit Ges Return device for boring bar guides on drilling machines
US2955572A (en) * 1958-01-31 1960-10-11 Westinghouse Air Brake Co Telescopic feed leg for hydraulic tools
SU540032A1 (en) * 1975-02-18 1976-12-25 Горловский Филиал Донецкого Ордена Трудового Красного Знамени Политехнического Института Burov machine
SU962606A1 (en) * 1980-09-24 1982-09-30 Улб-Банскы Выскумны Устав (Инопредприятие) Equipment for rotary drilling of rock
SU1756553A1 (en) * 1990-06-22 1992-08-23 Специальное конструкторское бюро самоходного горного оборудования Drilling machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012098492A2 (en) 2011-01-17 2012-07-26 Stratabolt (Proprietary) Limited Drill rig
WO2015010462A1 (en) * 2013-07-26 2015-01-29 中国矿业大学 Drilling and draining integrated floor anchoring driller
EP3228813A1 (en) * 2016-04-06 2017-10-11 Hawle Water Technology Norge AS Magnetic propulsion system and/or counter hold for a drilling system
WO2017174488A1 (en) * 2016-04-06 2017-10-12 Hawle Water Technology Norge As Magnetic propulsion system and/or counter hold for a drilling system
WO2019043641A1 (en) 2017-08-31 2019-03-07 Gst Research And Development (Pty) Ltd. Drilling apparatus
CN109441506A (en) * 2019-01-14 2019-03-08 马振凯 Flip-over type integrates roofbolt drilling machine and method
CN109441506B (en) * 2019-01-14 2024-05-14 中矿智控(北京)矿山设备有限公司 Inverted integrated roof bolter and method

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