SE460077B - Adjustment of rock drilling machine feeder beam - Google Patents

Adjustment of rock drilling machine feeder beam

Info

Publication number
SE460077B
SE460077B SE8704190A SE8704190A SE460077B SE 460077 B SE460077 B SE 460077B SE 8704190 A SE8704190 A SE 8704190A SE 8704190 A SE8704190 A SE 8704190A SE 460077 B SE460077 B SE 460077B
Authority
SE
Sweden
Prior art keywords
feed beam
transmitters
receivers
transmitter
electromagnetic
Prior art date
Application number
SE8704190A
Other languages
Swedish (sv)
Other versions
SE8704190D0 (en
SE8704190L (en
Inventor
N Aagren
Original Assignee
Atlas Copco Ab
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 Atlas Copco Ab filed Critical Atlas Copco Ab
Priority to SE8704190A priority Critical patent/SE460077B/en
Publication of SE8704190D0 publication Critical patent/SE8704190D0/en
Priority to FI884970A priority patent/FI884970A/en
Priority to AU24378/88A priority patent/AU604573B2/en
Priority to CA000581413A priority patent/CA1332968C/en
Publication of SE8704190L publication Critical patent/SE8704190L/en
Publication of SE460077B publication Critical patent/SE460077B/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/14Determining absolute distances from a plurality of spaced points of known location
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/18Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
    • G01S5/186Determination of attitude

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Earth Drilling (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

Three electromagnetic beams (33,34,35) are created with pedetermined direction and position in a room (22). A receiver/ transmitter (13,14,15) for oscillation energy is positioned in each of electromagnetic beams. At least two transmitters/receivers (16,17) for oscillation energy are The delay time interval for oscillation energy between each of transmitters/receivers on the feed beam and each of receivers/ transmitters positioned by electromagnetic beams is measured. The positioning of the feed beam is controlled such that measured delay time intervals achieve predetermined values.

Description

460 077 denna uppställning kan man ta sig fram med borrningen 10-15 m innan en ny uppmontering av mikrofonerna behöver göras. Mikrofonernas placering i tunnelns lângsriktning bestäms med måttband. De sändare/mottagare som sitter på borriggens matarbalk utgöres lämpligen av ultraljudsgeneratorer. 460 077 this setup can be reached with the drilling 10-15 m before a new mounting of the microphones needs to be done. The position of the microphones in the longitudinal direction of the tunnel is determined by measuring tape. The transmitters / receivers located on the drilling rig's feed beam are suitably made of ultrasonic generators.

Vid det praktiska utövandet av uppfinningen utnyttjar man lämpligen en mikroprocessor med tillhörande minne för lagring av de olika uppmätta gàngtiderna samt för beräkning av hur matarbalken skall styras för att det förutbestämda läget och den förutbestämda riktningen skall erhållas. Ett sådant system kan styra presentationen av matarbalkens läge på en display eller i ett mer automatiserat system direktstyra borriggen så att borrníngen kan ske helautomatiskt.In the practice of the invention, a microprocessor with associated memory is suitably used for storing the various measured running times and for calculating how the feed beam is to be controlled in order to obtain the predetermined position and the predetermined direction. Such a system can control the presentation of the position of the feed beam on a display or in a more automated system directly control the drilling rig so that drilling can take place fully automatically.

Ett utföringsexempel av uppfinningen beskrivs nedan med hänvisning till bifogade ritning som schematiskt visar en gruvort och en däri placerad matarbalk med mätutrustning för utövande av uppfinningen.An embodiment of the invention is described below with reference to the accompanying drawing which schematically shows a mining site and a feed beam placed therein with measuring equipment for practicing the invention.

Pâ ritningen visas en bergkropp 21 i vilken ett bergrum 22 är utsprängt. Dà uppfinningen utövas alstras tre elektromagnetiska strålar, exempelvis laserstrálar, 33,34,35 i förutbestämda, företrädesvis parallella, riktningar med förutbestämda lägen. En mikrofon 13,14 resp 15 placeras i var och en av de elektromagnetiska strålarna. För att få mikrofonerna i ett gemensamt plan utnyttjas ett ej visat vridbart vinkelprisma. På detta sätt kan man lätt åstadkomma ett mikrofonplan som är parallellt med ett annat mikrofonplan beläget på avstånd. I bergrummet 22 är en borrigg, av vilken matarbalken 12 visas, placerad. Matarbalken är försedd med en längs matarbalken fram och åter rörlig bergborrmaskin ll. Pâ matarbalken finns tvâ ultraljudsändare l6,l7. Genom mätning av gángtíden för ultraljudet mellan var och en av ljudsàndarna och var och en av mikrofonerna bestäms ultraljudsändarnas lägen i rummet. Härigenom är matarbalkens läge och riktning i rummet bestämda. Matarbalken manövreras därefter, manuellt eller automatiskt, sa att ultraljudsändarna hamnar i förutbestämda lägen i förhållande till ett för bergkroppen 21 gemensamt koordinatsystem.The drawing shows a rock body 21 in which a rock chamber 22 is blasted out. When the invention is practiced, three electromagnetic rays are generated, for example laser beams, 33,34,35 in predetermined, preferably parallel, directions with predetermined positions. A microphone 13, 14 and 15, respectively, is placed in each of the electromagnetic beams. To get the microphones in a common plane, a rotatable angle prism (not shown) is used. In this way, one can easily provide a microphone plane which is parallel to another microphone plane located at a distance. In the rock space 22, a drilling rig, of which the feed beam 12 is shown, is placed. The feed beam is provided with a rock drilling machine ll reciprocating along the feed beam ll. There are two ultrasonic transmitters l6, l7 on the feed beam. By measuring the travel time of the ultrasound between each of the sound transmitters and each of the microphones, the positions of the ultrasonic transmitters in the room are determined. In this way, the position and direction of the feed beam in the room are determined. The feed beam is then operated, manually or automatically, so that the ultrasonic transmitters end up in predetermined positions in relation to a coordinate system common to the rock body 21.

Gångtiderna mellan sändaren 16 och de olika mikrofonerna representeras av längderna på sträckorna 63,64 och 65. Gångtiderna mellan sändaren 17 och de olika mikrofonerna representeras av längderna pà sträckorna 73,76 och 75.The running times between the transmitter 16 and the different microphones are represented by the lengths of the sections 63,64 and 65. The running times between the transmitter 17 and the different microphones are represented by the lengths of the sections 73,76 and 75.

Där så är önskvärt utförs mätningarna och beräkningarna av lägen och 460 077 riktningar samt eventuell automatisk ínriktnig av matarbalken med hjälp av en mikroprocessor.Where desired, the measurements and calculations of positions and 460,077 directions as well as any automatic alignment of the feed beam are performed by means of a microprocessor.

Claims (1)

1. 46Û Û77 Patentkrav: l. _ Förfarande för inställning av en med en bergborrmaskin (ll) försedd matarbalk (12) i ett förutbestämt läge och med en förutbestämd riktning i förhållande till ett för en bergkropp (21) gemensamt koordinatsystem, kännetecknar därav att minst tre elektromagnetiska strålar (33,34,35) alstras med förutbestämd riktning och läge i ett bergrum (22), att en mottagare/sändare (l3,l4,l5) för svângningsenergi placeras i en av sagda elektromagnetiska strålar i ett medelst måttband bestämt läge, att en mottagare/sändare för svängningsenergi placeras i var och en av de övriga elektromagnetiska strålarna med hjälp av ett vridbart vinkelprisma placerat i sagda förstnämnda elektromagnetiska stråle, att minst två sändare/mottagare (l6,l7) för svängníngsenergi placeras på avstånd från varandra pà sagda matarbalk (l2), att gàngtiden för svångningsenergi mellan var och en av sagda sändare/mottagare på matarbalken och var och en av sagda mottagare/sändare utplacerade medelst sagda elektromagnetiska strålar mäts samt att inriktningen av matarbalken styrs till dess att sagda uppmätta gàngtider erhåller förutbestämda värden.A method for setting a feed beam (12) provided with a rock drill (II) in a predetermined position and with a predetermined direction relative to a coordinate system common to a rock body (21), characterized in that at least three electromagnetic beams (33,34,35) are generated with a predetermined direction and position in a rock space (22), that a receiver / transmitter (l3, l4, l5) for oscillating energy is placed in one of said electromagnetic beams in a measuring band determined by position, that a receiver / transmitter for oscillating energy is placed in each of the other electromagnetic beams by means of a rotatable angular prism placed in said first-mentioned electromagnetic beam, that at least two transmitter / receiver (16, 17) for oscillating energy are placed at a distance from each other on said feed beam (l2), that the travel time for oscillating energy between each of said transmitters / receivers on the feed beam and each of said receivers / transmitters placed by means of said a electromagnetic rays are measured and that the alignment of the feed beam is controlled until said measured running times obtain predetermined values.
SE8704190A 1987-10-28 1987-10-28 Adjustment of rock drilling machine feeder beam SE460077B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8704190A SE460077B (en) 1987-10-28 1987-10-28 Adjustment of rock drilling machine feeder beam
FI884970A FI884970A (en) 1987-10-28 1988-10-27 FOERFARANDE FOER INSTAELLNING AV EN MED EN BERGBORRMASKIN FOERSEDD MATARBALK.
AU24378/88A AU604573B2 (en) 1987-10-28 1988-10-27 A method of positioning a feed beam provided with a rock drilling machine
CA000581413A CA1332968C (en) 1987-10-28 1988-10-27 Method of positioning a feed beam provided with a rock drilling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8704190A SE460077B (en) 1987-10-28 1987-10-28 Adjustment of rock drilling machine feeder beam

Publications (3)

Publication Number Publication Date
SE8704190D0 SE8704190D0 (en) 1987-10-28
SE8704190L SE8704190L (en) 1989-04-29
SE460077B true SE460077B (en) 1989-09-04

Family

ID=20370030

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8704190A SE460077B (en) 1987-10-28 1987-10-28 Adjustment of rock drilling machine feeder beam

Country Status (4)

Country Link
AU (1) AU604573B2 (en)
CA (1) CA1332968C (en)
FI (1) FI884970A (en)
SE (1) SE460077B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996022547A2 (en) * 1995-01-20 1996-07-25 Tamrock Oy A method for determining the position of a tool of a rock drill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996022547A2 (en) * 1995-01-20 1996-07-25 Tamrock Oy A method for determining the position of a tool of a rock drill
WO1996022547A3 (en) * 1995-01-20 1996-09-12 Tamrock Oy A method for determining the position of a tool of a rock drill

Also Published As

Publication number Publication date
CA1332968C (en) 1994-11-08
AU604573B2 (en) 1990-12-20
AU2437888A (en) 1989-05-04
FI884970A0 (en) 1988-10-27
SE8704190D0 (en) 1987-10-28
SE8704190L (en) 1989-04-29
FI884970A (en) 1989-04-29

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