SE1350087A1 - Rock drilling Seal - Google Patents
Rock drilling Seal Download PDFInfo
- Publication number
- SE1350087A1 SE1350087A1 SE1350087A SE1350087A SE1350087A1 SE 1350087 A1 SE1350087 A1 SE 1350087A1 SE 1350087 A SE1350087 A SE 1350087A SE 1350087 A SE1350087 A SE 1350087A SE 1350087 A1 SE1350087 A1 SE 1350087A1
- Authority
- SE
- Sweden
- Prior art keywords
- dust
- seal
- opening
- dust control
- cradle
- Prior art date
Links
- 239000011435 rock Substances 0.000 title claims abstract description 38
- 238000005553 drilling Methods 0.000 title claims abstract description 37
- 210000002105 tongue Anatomy 0.000 claims abstract description 54
- 239000000428 dust Substances 0.000 claims abstract description 53
- 238000010276 construction Methods 0.000 claims description 9
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000002386 leaching Methods 0.000 claims description 2
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 2
- 235000015250 liver sausages Nutrition 0.000 claims 1
- 210000004417 patella Anatomy 0.000 claims 1
- XYSQXZCMOLNHOI-UHFFFAOYSA-N s-[2-[[4-(acetylsulfamoyl)phenyl]carbamoyl]phenyl] 5-pyridin-1-ium-1-ylpentanethioate;bromide Chemical compound [Br-].C1=CC(S(=O)(=O)NC(=O)C)=CC=C1NC(=O)C1=CC=CC=C1SC(=O)CCCC[N+]1=CC=CC=C1 XYSQXZCMOLNHOI-UHFFFAOYSA-N 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000006069 physical mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920006132 styrene block copolymer Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920006344 thermoplastic copolyester Polymers 0.000 description 1
- 229920006345 thermoplastic polyamide Polymers 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
- E21B21/015—Means engaging the bore entrance, e.g. hoods for collecting dust
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)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
SAMMANDRAG FOreliggande uppfinning tillhandahaller en dammkontrollerande tatning (100) fOr bergborrning bestaende av en elastisk sammanhangande skivkonstruktion (101) som har Ovre (102) och nedre (104) ytor och en kant (110) som omger skivkonstruktionen (101), varvid namnda konstruktion (101) innefattar atminstone en genomgaende Oppning (106) i den Ovre (102) och nedre (104) ytan av den elastiska sammanhangande skivkonstruktionen (101), varvid namnda Oppning avgransas av en vagg (108), varvid ett flertal intill varandra liggande fjadrande tungor (112a-f) dar vane fjadrande tunga (112) avgransas av namnda vagg (108), en fOrsta sidokant (122), en andra sidokant (124) och en yttre kant (114) samt en Ovre och en undre sida (128, 130), varvid namnda flertal fjadrande tungor (112a-e) skjuter ut fran namnda vagg (108), och varvid namnda yttre kanter (114a-e) hos namnda fjadrande tungor (112a-e) tillsammans avgransar en cirkular oppning (116) avpassad fOr att inrymma stangen (118) has en bergborr (120),varvid namnda flertal tungor (112) är utformade i ett stycke med namnda elastiska sammanhangande skivkonstruktionen (101). Uppfinningen tillhandahaller ocks6 en bergborrenhet innefattande en sadan dammkontrollerande tatning. SUMMARY The present invention provides a dust control seal (100) for rock drilling comprising an elastically continuous disc structure (101) having upper (102) and lower (104) surfaces and an edge (110) surrounding the disc structure (101), said structure (101) 101) comprises at least one through-opening (106) in the upper (102) and lower (104) surface of the elastic continuous disc structure (101), said opening being delimited by a cradle (108), a plurality of adjacent resilient tongues (112a-f) the habit of resilient tongue (112) is defined by said cradle (108), a first side edge (122), a second side edge (124) and an outer edge (114) and an upper and a lower side (128), 130), said plurality of resilient tongues (112a-e) projecting from said cradle (108), and said outer edges (114a-e) of said resilient tongues (112a-e) together defining a circular opening (116) adapted to accommodate the rod (118) has a bergb orr (120), said plurality of tongues (112) being formed integrally with said resiliently continuous disc structure (101). The invention also provides a rock drilling unit comprising such a dust control seal.
Description
SAMMANDRAG FOreliggande uppfinning tillhandahaller en dammkontrollerande tatning (100) fOr bergborrning bestaende av en elastisk sammanhangande skivkonstruktion (101) som har Ovre (102) och nedre (104) ytor och en kant (110) som omger skivkonstruktionen (101), varvid namnda konstruktion (101) innefattar atminstone en genomgaende Oppning (106) i den Ovre (102) och nedre (104) ytan av den elastiska sammanhangande skivkonstruktionen (101), varvid namnda Oppning avgransas av en vagg (108), varvid ett flertal intill varandra liggande fjadrande tungor (112a-f) dar vane fjadrande tunga (112) avgransas av namnda vagg (108), en fOrsta sidokant (122), en andra sidokant (124) och en yttre kant (114) samt en Ovre och en undre sida (128, 130), varvid namnda flertal fjadrande tungor (112a-e) skjuter ut fran namnda vagg (108), och varvid namnda yttre kanter (114a-e) hos namnda fjadrande tungor (112a-e) tillsammans avgransar en cirkular oppning (116) avpassad fOr att inrymma stangen (118) has en bergborr (120),varvid namnda flertal tungor (112) är utformade i ett stycke med namnda elastiska sammanhangande skivkonstruktionen (101). Uppfinningen tillhandahaller ocks6 en bergborrenhet innefattande en sadan dammkontrollerande tatning. 13-11-07 949 \\smirrie1ilewc01A/VorkingCopiesS\ 119\20131021_21 061476_Applicafiontext_DE7 3102823oc AWAPATENT ABTrelleborg lndustri AB Kontor/HandlaggareAnsOkningsnrVar referens MalmO/Mikael Bergstrand/MBE1350087-1SE-21061476 1 NY PRODUKT Foreliggande uppfinning tillhandahaller en dammkontrollerande tatning for bergborrning, vilken tatning best& av en elastisk sammanhangande skivkonstruktion. FOreliggande uppfinning innefattar aven ett fOrfarande kir anvandning av en sac:Ian dammkontrollerande tatning for att skydda en bergborrenhet, liksom en bergborrenhet innefattande en sgdan dammkontrollerande tatning. SUMMARY The present invention provides a dust control seal (100) for rock drilling comprising an elastically continuous disc structure (101) having upper (102) and lower (104) surfaces and an edge (110) surrounding the disc structure (101), said structure (101) 101) comprises at least one through-opening (106) in the upper (102) and lower (104) surface of the elastic continuous disc structure (101), said opening being delimited by a cradle (108), a plurality of adjacent resilient tongues (112a-f) the habit of resilient tongue (112) is defined by said cradle (108), a first side edge (122), a second side edge (124) and an outer edge (114) and an upper and a lower side (128), 130), said plurality of resilient tongues (112a-e) projecting from said cradle (108), and said outer edges (114a-e) of said resilient tongues (112a-e) together defining a circular opening (116) adapted to accommodate the rod (118) has a bergb orr (120), said plurality of tongues (112) being formed integrally with said resiliently continuous disc structure (101). The invention also provides a rock drilling unit comprising such a dust control seal. 13-11-07 949 \\ smirrie1ilewc01A / VorkingCopiesS \ 119 \ 20131021_21 061476_Applicafiontext_DE7 3102823oc AWAPATENT ABTrelleborg lndustri AB Kontor / HandlaggareAnsOkningsnrVar referens MalmO / Mikael Bergstrand / NYBE6141 of an elastically cohesive disc structure. The present invention also comprises a method of using a sac: dust control seal to protect a rock drilling unit, as well as a rock drilling unit comprising such a dust control seal.
Teknisk bakarund Vid bergborrning kan stenar och sandpartiklar, stendamm, tvingas ut ur det borrade hglet och ferorenar omgivningen. Anstrangningar har gjorts fOr att tata um-Met narmast det borrade hglet med hjalp av olika typer av tatande utrustning. Det ar jamfOrelsevis Iatt att tata pa ett avstgnd frgn borren men det ar mer utmanande att tata i narheten av borrstangen. Typiskt har borrkronan en stOrre diameter an borrstangen och borren roterar nar man borrar. Tatningsutrustningen mgste alltsa kunna ta emot och genomtrangas av borrkronan och anda kunna ge god tatning nar den inrymmer den smalare borrstangen. Technical baking round When rock drilling, stones and sand particles, rock dust, can be forced out of the drilled hole and pollute the surroundings. Efforts have been made to tat um-Met closest to the drilled hole with the help of different types of tat equipment. It is generally easy to take at a distance from the drill, but it is more challenging to take near the drill rod. Typically, the drill bit has a larger diameter than the drill rod and the drill rotates when drilling. The sealing equipment must therefore be able to receive and be penetrated by the drill bit and the spirit can give a good seal when it houses the narrower drill rod.
Traditionellt har den utrustning som har anvants fOr aft tata omrgdet narmast borren varit en elastisk skiva med en Oppning. Mest anvand ar en gummiskiva med en tjocklek pa ungefar 20 mm och en diameter pa ungefar 300 mm. Skivan har en centralt anordnad Oppning for vilken diametern ar dimensionerad efter borrstgngen. En sgdan skiva ger tillracklig tatning men dess livslangd ar mycket kort. Vanligtvis maste en sgdan skiva bytas ut efter bara en eller tvg dagar av anvandning. De korta bytesintervallen ar kostsamma och otillfredsstallande. Traditionally, the equipment that has been used to close the area closest to the drill has been an elastic disc with an opening. The most commonly used is a rubber disc with a thickness of about 20 mm and a diameter of about 300 mm. The disc has a centrally arranged opening for which the diameter is dimensioned after the drilling step. Such a disc provides sufficient sealing but its service life is very short. Usually such a disc must be replaced after only one or two days of use. The short replacement intervals are costly and unsatisfactory.
Andra satt att tata omrgdet narmast borren har ftireslagits. Exempel pg sgdana alternativa satt kan hittas i US3800890 och GB1428322. Others sat to take the area closest to the drill has been struck. Examples of such alternative methods can be found in US3800890 and GB1428322.
US3800890 beskriver en komplex tatning mellan tva plastskivor. Var och en av dessa skivor innefattar en central Oppning och slitsar riktade axiellt ut frgn mitten av Oppningen. En av skivorna roterar medan den andra ar fast. Plastskivorna som bildar tatningen utsatts for svgra fOrhallanden under en 11/7/2013 9:49 AM \\smimefilewcOlMork ngCop es$1119\131021_21361476_Applicatiortext_DET 31 0282 doc 2 borrning. FOljaktligen har denna tatning inte en patagligt langre livslangd och den är dyrare att tillverka. US3800890 describes a complex seal between two plastic sheets. Each of these discs includes a central aperture and slots axially directed from the center of the aperture. One of the discs rotates while the other is fixed. The plastic discs that form the seal were subjected to severe conditions during a drilling 11/7/2013 9:49 AM \\ smimefilewcOlMork ngCop es $ 1119 \ 131021_21361476_Applicatiortext_DET 31 0282 doc 2 drilling. Consequently, this seal does not have a ridiculously long lifespan and is more expensive to manufacture.
GB1428322 beskriver ett tatningsarrangemang bestaende av en ring som har ett antal fjadrande tungor som stacker sig radiellt mat. Tungorna ar snedstallda i fOrhallande till planet av den yttre ringen. FOljaktligen finns det en fri luftpassage genom tatningen och saledes en stor risk fOr att damm kan komma ut genom tatningen och darigenom fororena miljOn nara borren. GB1428322 describes a sealing arrangement consisting of a ring having a number of resilient tongues stacking radially. The tongues are inclined in relation to the plane of the outer ring. Consequently, there is a free air passage through the seal and thus a great risk that dust can come out through the seal and thereby contaminate the environment near the drill.
FOljaktligen finns det ett behov av en forbattrad dammkontrollerande tatning anpassad for anvandning fOr bergborrning. Consequently, there is a need for an improved dust control seal adapted for use in rock drilling.
Sammanfattning av upofinninoen FOreliggande uppfinning syftar generellt till att eliminera eller atminstone minska de ovan diskuterade problemen samt andra problem som är kanda inom tekniken. Detta Ors med en dammkontrollerande tatning i enlighet med de bifogade kraven. Summary of the Upofinnino The present invention generally aims to eliminate or at least reduce the problems discussed above as well as other problems known in the art. This Ors with a dust control sealant in accordance with the appended claims.
I en fOrsta aspekt tillhandahaer uppfinningen en dammkontrollerande tatning fOr bergborrning bestaende av en elastisk sammanhangande skivkonstruktion som har c5vre och nedre ytor och en kant som omger skivkonstruktionen, varvid namnda konstruktion innefattar atminstone en genomgaende Oppning i den Ovre och nedre ytan av den elastiska sammanhangande skivkonstruktionen, varvid namnda oppning avgransas av en vagg, varvid ett flertal fjadrande tungor dar vane fjadrande tunga avgransas av namnda vagg, en fOrsta sidokant, en andra sidokant och en yttre kant samt en Ovre och en undre sida, varvid namnda flertal fjadrande tungor skjuter ut fran namnda vagg, och varvid namnda yttre kanter hos namnda fjadrande tungor tillsammans avgransar en cirkular oppning avpassad for att inrymma stangen hos en bergborr, varvid namnda flertal tungor är ufformade i ett stycke med namnda elastiska sammanhangande skivkonstruktionen och de ar intill varandra anordnade i fOrhallande till varandra. In a first aspect, the invention provides a rock control seal for rock drilling comprising an elastically continuous disc structure having upper and lower surfaces and an edge surrounding the disc structure, said structure comprising at least one through opening in the upper and lower surface of the elastic structure. said opening being delimited by a cradle, a plurality of resilient tongues thereby habitably resilient tongue being delimited by said cradle, a first side edge, a second side edge and an outer edge and an upper and a lower side, said plurality of resilient tongues projecting from said rock, and wherein said outer edges of said resilient tongues together define a circular opening adapted to accommodate the rod of a rock drill, said plurality of tongues being integrally formed with said resiliently continuous disc structure and arranged adjacent to each other in relation to each other.
Sasom beskrivs hari avser termen "dammkontrollerande tatning" en anordning fOr att fc5rhindra damm fran att komma ut i narheten av borrstangen hos en bergborr. Typiskt sett utgOr den dammkontrollerande tatning en del av ett stOrre tatningsarrangemang fOr att fOrhindra damm fran att komma ut i major, nara en bergborrenhet. Dessutom har en sadan tatning typiskt sett utseendet av en cirkular skiva med en centralt anordnad cirkular oppning. 2013-11-07 9 49 \lsrrilmefilewc0lMorkingCopiesV19\2013102121061476_Apoicatientext_DE' 3 0282.3.dec 3 Sasom beskrivs hari avser termen "elastisk sammanhangande skivkonstruktion" en platt konstruktion gjord av ett enda elastiskt material i ett stycke. As described herein, the term "dust control seal" refers to a device for preventing dust from entering the vicinity of the drill rod of a rock drill. Typically, the dust control seal is part of a larger seal arrangement to prevent dust from entering the major, near a rock drilling unit. In addition, such a seal typically has the appearance of a circular disc with a centrally located circular opening. 2013-11-07 9 49 \ lsrrilmefilewc0lMorkingCopiesV19 \ 2013102121061476_Apoicatientext_DE '3 0282.3.dec 3 As described herein, the term "elastically cohesive sheet construction" refers to a flat construction made of a single elastic material in one piece.
Sasom beskrivs hari avser uttrycket "ett flertal fjadrande tungor" en grupp av minst tvi, men fOretradesvis minst fem fjadrande tungor. Tungorna ar utformade i ett stycke med resten av skivkonstruktionen och därför naturligtvis gjorda av elastiska material som resten av den elastiska sammanhangande skivkonstruktionen. Sardraget att namnda flertal fjadrande tungor är "intill varandra anordnade i forhallande till varandra" an avsett aft betyda aft tungorna är sa tatt anordnade i ferhallande till varandra aft de tillsammans bildar en skivkonstruktion med inget Oppet utrymme utom for namnda cirkulara Oppning. Nan en lamplig borrsting an inrymd i Oppningen, bildas en tat fOrslutning vilket forhindrar stendamm fran aft komma ut in i den nara omgivningen. As described herein, the term "plurality of resilient tongues" refers to a group of at least two, but preferably at least five resilient tongues. The tongues are formed in one piece with the rest of the disc construction and therefore of course made of elastic materials like the rest of the elastic continuous disc construction. The feature that said plurality of resilient tongues are "arranged next to each other in relation to each other" is intended to mean that the tongues are so arranged arranged in relation to each other that together they form a disc construction with no open space except for said circular opening. When a suitable drilling rig is housed in the opening, a tight closure is formed, which prevents rock dust from escaping into the immediate vicinity.
I en fOredragen utfOringsform finns det spar i nagra av de fjadrande tungorna langs namnda vagg. In a preferred embodiment, there are grooves in some of the resilient tongues along said cradle.
I en annu mera fOredragen utfOringsform finns det spar i alla de fjadrande tungor pa bida sidor langs namnda vagg. In an even more preferred embodiment, there are grooves in all the resilient tongues on both sides along the said cradle.
I en fOredragen utfOringsform tillverkas den elastiska sammanhangande skivkonstruktionen av material vald fran gruppen av polyuretan och termoplastiska elastomerer (TPE). Termoplastiska elastomerer, eller termoplastgummin, an en klass av sampolymerer eller en fysisk blandning av polymerer, som bestir av material med bade termoplastiska och elastomera egenskaper. Typiska och kommersiellt tillgangliga exempel pa TPE-material an styrenblocksampolymerer, polyolefinblandningar, elastiska legeringar (TPE-v eller TPV), termoplastiska polyuretaner, termoplastiska sampolyester och termoplastiska polyamider. For aft kvalificera sig som en termoplastisk elastomerer maste ett material ha tre vasentliga egenskaper. De miste kunna strackas till mittliga tojningar och, vid avlagsnande av pifrestningen, kunna itervanda till nagot nara den ursprungliga formen. De maste vara bearbetbara i smalt tillstind vid fOrhOjda temperaturer. Slutligen far de inte ha betydande krypning. In a preferred embodiment, the elastic cohesive sheet construction is made of materials selected from the group of polyurethane and thermoplastic elastomers (TPE). Thermoplastic elastomers, or thermoplastic rubbers, are a class of copolymers or a physical mixture of polymers, consisting of materials having both thermoplastic and elastomeric properties. Typical and commercially available examples of TPE materials such as styrene block copolymers, polyolefin blends, elastic alloys (TPE-v or TPV), thermoplastic polyurethanes, thermoplastic copolyester and thermoplastic polyamides. In order to qualify as a thermoplastic elastomer, a material must have three essential properties. The lost ones can be stretched to medium stretches and, when removing the whipping cream, can be used to something close to the original shape. They must be machinable in a narrow condition at elevated temperatures. Finally, they must not have significant creep.
I en fOredragen utfOringsform ligger tjockleken hos den elastiska sammanhangande skivkonstruktionen inom omradet av 10 till 40 mm. In a preferred embodiment, the thickness of the elastic continuous sheet construction is in the range of 10 to 40 mm.
I en foredragen utfOringsform har de fjadrande tungorna en tjocklek inom omradet av 1,5 till 4 mm. 2013-11-07 9.49 VsmImefilewc01MorkingCopies$1119\2013102121061476_Applicatientext_DL 1..310282.3.doc 4 I en foredragen utforingsform har sparen hos de fjadrande tungorna ett djup inom omradet av 0,3 till 1,5 mm. In a preferred embodiment, the resilient tongues have a thickness in the range of 1.5 to 4 mm. 2013-11-07 9.49 VsmImefilewc01MorkingCopies $ 1119 \ 2013102121061476_Applicatientext_DL 1..310282.3.doc 4 In a preferred embodiment, the grooves of the resilient tongues have a depth in the range of 0.3 to 1.5 mm.
I en andra aspekt tillhandahaller uppfinningen anvandning av en dammkontrollerande tatning enligt den forsta aspekten for skyddande av den narmiljOn och maskineriet i en bergborrenhet fran damm som produceras under bergborrning. In a second aspect, the invention provides the use of a dust control seal according to the first aspect for protecting the local environment and machinery in a rock drilling unit from dust produced during rock drilling.
I en tredje aspekt tillhandahaller uppfinningen en bergborrenhet innefattande en partiell inneslutning, en borrstang som har en borrkrona vid en ande och en maskin for rotation av borrstangen, varvid namnda borrkrona och en del av stangen är belagen i namnda partiella inneslutning som ar anordnad fOr tatning av omra'det i narheten av borrstangen tillsammans med berget i vilket ett hal skall borras, varvid namnda inneslutning har en Oppning anpassad for mottagning av borrstingen, varvid en dammkontrollerande tatning enligt den fOrsta aspekten av uppfinningen har anordnats i namnda Oppning pa ett sklant satt aft namnda stang sticker ut genom den cirkulara oppningen hos den dammkontrollerande tatningen, och darigenom ferhindrar damm fran aft lacka ut genom Oppningen. In a third aspect, the invention provides a rock drilling unit comprising a partial enclosure, a drill rod having a drill bit at one end and a machine for rotating the drill rod, said drill bit and a portion of the rod being housed in said partial enclosure arranged to engage the area in the vicinity of the drill rod together with the rock in which a hall is to be drilled, said enclosure having an opening adapted for receiving the drilling rods, a dust controlling seal according to the first aspect of the invention being arranged in said opening on a slant set of said rod protrudes through the circular opening of the dust-controlling seal, thereby preventing dust from leaching out through the opening.
Kort beskrivning av ritninoarna FOreliggande uppfinning kommer nu aft beskrivas med hanvisning till de bifogade figurerna, i vilka: Figur 1 visar en perspektivvy av en dammkontrollerande tatning enligt fc5religgande uppfinning, Figur 2 visar ett tvarsnitt av en dammkontrollerande tatning enligt 25 fOreliggande uppfinning, Figur 3 visar en vy fran ovan av en fjadrande tunga hos den dammkontrollerande tatningen enligt fc5religgande uppfinning, Figur 4 visar en tvarsnittsvy fran sidan av en fjadrande tunga hos den dammkontrollerande tatningen enligt foreliggande uppfinning, Figur 5 beskriver hur ett flertal fjadrande tungor tillsammans definierar en cirkular Oppning och bildar en tatning, Figur 6 visar den dammkontrollerande tatningen anordnad i en partiell inneslutning och inrymmande en borrstang innefattande en borr, och Figur 7 beskriver en mobil bergborrenhet innefattande en partiell 35 inneslutning innefattande en dammkontrollerande tatning. 2013-11-07 949 \\smImefilewc01\1/1/orkirgCopes$\119\20131021_21061476._Applicatiortext_DET 310282 3 doc Detalierad beskrivninq av uppfinningen FOreliggande uppfinning syftar till att tillhandahalla en fOrbattrad dammkontrollerande tatning som skall anvandas i samband med en bergborrenhet. Tatningen har en Okad livslangd jamfOrt med tatningar enligt teknikens standpunkt. Dessutom ar den dammkontrollerande tatningen forhallandevis enkel all tillverka. Bada dessa faktorer leder till minskade kostnader for slutanvandaren. Brief Description of the Drawings The present invention will now be described with reference to the accompanying figures, in which: Figure 1 shows a perspective view of a dust control seal according to the present invention, Figure 2 shows a cross section of a dust control seal according to the present invention, Figure 3 shows a top view of a resilient tongue of the dust controlling seal of the present invention; Figure 4 shows a cross-sectional side view of a resilient tongue of the dust controlling seal of the present invention. Figure 5 describes how a plurality of resilient tongues together define a circular aperture and form a seal, Figure 6 shows the dust control seal arranged in a partial enclosure and housing a drill rod comprising a drill, and Figure 7 describes a mobile rock drilling unit comprising a partial containment comprising a dust control seal. 2013-11-07 949 \\ smImefilewc01 \ 1/1 / orkirgCopes $ \ 119 \ 20131021_21061476._Applicatiortext_DET 310282 3 doc Detailed description of the invention The present invention aims to provide an improved dust control seal in connection with a rock drilling unit to be used. The sealant has an Okad lifelong comparison with sealants according to the state of the art. In addition, the dust control seal is relatively simple to manufacture. Both of these factors lead to reduced costs for the end user.
Foreliggande uppfinning ar baserad pa iden att tillhandahalla en dammkontrollerande tatning dar materialet som utsatts for pafrestning nar borren anvands, dvs. borsten, ar tillrackligt flexibelt fOr aft inte brytas men anda motstandskraftigt mot aft deformeras nar borrkronan tranger igenom den dammkontrollerande tatningen eller nar stangen roteras och fors upp och ner under borrning. Samtidigt maste den dammkontrollerande tatningen tillhandahalla ett tillrackligt solitt MI* mot stendamm vid borrning. The present invention is based on the idea of providing a dust control seal where the material subjected to stress when the drill is used, i.e. the brush, is sufficiently flexible so as not to break, but the spirit is strongly deformed when the drill bit penetrates the dust-controlling seal or when the rod is rotated and moved up and down during drilling. At the same time, the dust-controlling seal must provide a sufficiently solid MI * against rock dust when drilling.
Eftersom stangen hos borren har en mindre diameter an borrkronan kravs det all en Oppning hos den dammkontrollerande tatningen, van i skaftet ska inrymmas under borrning, har en mindre diameter an borrkronan. FOljaktligen maste borren tvingas genom den dammkontrollerande tatningen, vilket leder till aft en del av den dammkontrollerande tatningen utsatts for mycket pafrestning medan borrkronan tvingas genom. Genom aft anvanda fjadrande tungor som organ for aft fOrhindra stendamm fran aft tryckas ut ur borrhalet kan den dammkontrollerande tatningen vara taligare mot sedan pafrestning. Since the rod of the drill has a smaller diameter than the drill bit, all an opening of the dust controlling seal is required, the vane of the shaft must be accommodated during drilling, has a smaller diameter than the drill bit. Consequently, the drill must be forced through the dust-controlling seal, which leads to a part of the dust-controlling seal being subjected to too much stress while the drill bit is forced through. By often using resilient tongues as a means of preventing rock dust from being pushed out of the drill tail, the dust-controlling seal can be more numerous against subsequent drilling.
Vidare, eftersom den dammkontrollerande tatningen maste passa tatt runt stangen under borrning, for att forhindra att stendamm trycks ut ur borrhalet, kan den dammkontrollerande tatningen behtiva ingripa med stangen under borrning. Anvandning av intill varandra anordnade fjadrande tungor ar ett satt aft erhalla ett sadan nadvandig tat passform. Furthermore, since the dust control seal must fit the rod around the rod during drilling, to prevent rock dust from being pushed out of the drill tail, the dust control seal may intervene with the rod during drilling. The use of resiliently arranged resilient tongues is a way of obtaining such a suitable fit.
Slutligen, eftersom den dammkontrollerande tatningen enligt fOreliggande uppfinning an utformade i ett stycke ar tillverkningsprocessen relativt enkel och okomplicerad. Finally, since the dust control seal of the present invention is integrally formed, the manufacturing process is relatively simple and straightforward.
En sadan dammkontrollerande tatningen 100 visas i figur 1 och 2. Den bestar av ett elastiskt sammanhangande skivkonstruktion 101 med en byre yta 102 och en undre yta 104. Konstruktionen an utformad en enda, integrerat stycke. Typiskt ar den elastiska sammanhangande skivkonstruktionen tillverkad av polyuretan eller en termoplastisk elastomer. 2013-11-07 9.49 0sm mefilewcOlMorkingCopies$\ 119120131021_21061476_Applicationtext_DET.310232.3.doc 6 Konstruktionen 101 ar omgiven av en kant 110. Kanten visad i figurerna är cirkular men den elastiska sammanhangande skivkonstruktionen 101 kan ha godtycklig form sa lange som den passar med bergborrenheter som skall anvandas. Den dammkontrollerande tatningen har typiskt en definierad tjocklek, t. Tjockleken "t" är typiskt inom omradet av 10 till 40 mm. Varden kir "t" under 10 mm kan leda till minskad livslangd. Varden Over mm kan leda till minskad elasticitet och mindre bra tatningsegenskaper. Such a dust controlling seal 100 is shown in Figures 1 and 2. It consists of an elastically cohesive disc structure 101 with an upper surface 102 and a lower surface 104. The structure is formed in a single, integral piece. Typically, the elastic cohesive sheet construction is made of polyurethane or a thermoplastic elastomer. 2013-11-07 9.49 0sm mefilewcOlMorkingCopies $ \ 119120131021_21061476_Applicationtext_DET.310232.3.doc 6 The structure 101 is surrounded by an edge 110. used. The dust controlling seal typically has a defined thickness, t. The thickness "t" is typically in the range of 10 to 40 mm. The value kir "t" below 10 mm can lead to reduced service life. The value Over mm can lead to reduced elasticity and less good sealing properties.
Det finns en Oppning 106 i den elastiska sammanhangande skivkonstruktionen frail den Ovre 102 till den nedre ytan 104. Oppningen avgransas av en vagg 108. Det finns ett flertal fjadrande tungor 112a-e som skjuter ut fran vaggen 108 och de yttre kanterna 114a-e av dessa tungor 112a-e avgransar tillsammans en cirkular Oppning. Oppningen är anpassad fOr aft inrymma en borrstang. Nar en borr tranger igenom den dammkontrollerande tatningen 100, bOjs de fjadrande tungor 112a-e vilket gor aft borren kan passera. Nar borren har passerat genom den dammkontrollerande tatningen 100 och ar redo aft medverka i en borrningsoperation sá bOjs de fjadrande tungor 112a-e tillbaka och ytterkanterna 114a-e avgransar pa nytt den cirkulara Oppningen 116. There is an opening 106 in the resiliently connected disc structure from the upper 102 to the lower surface 104. The opening is defined by a cradle 108. There are a plurality of resilient tongues 112a-e projecting from the cradle 108 and the outer edges 114a-e of these tongues 112a-e together define a circular opening. The opening is adapted to accommodate a drill rod. When a drill penetrates the dust controlling seal 100, the resilient tongues 112a-e bend, causing the drill to pass. When the drill has passed through the dust control seal 100 and is ready to participate in a drilling operation, the resilient tongues 112a-e bend back and the outer edges 114a-e again delimit the circular opening 116.
Typiskt sett kan de fjadrande tungorna 112a-e innefatta spar 126 intill vaggen 108. I en fbredragen utforingsform har samtliga fjadrande tungor 112a-e ett sadant spar 126 pa den Ovre 128 eller nedre 130 sidan. Syftet med sadana spar är aft Oka flexibiliteten och underlatta genomtrangningen far en borrkrona. Typically, the resilient tongues 112a-e may include grooves 126 adjacent the cradle 108. In a preferred embodiment, all resilient tongues 112a-e have such a groove 126 on the upper 128 or lower 130 side. The purpose of such grooves is to increase flexibility and facilitate penetration through a drill bit.
Med hanvisning nu till fig. 3, har vane fjadrande tunga 112 en fOrsta rak sida 122 och en andra rak sida 124. Den yttre kanten 114 är bagformade och avgransar en del av en cirkular Oppning 116. Vaggen 108 fran vilken den fjadrande tungan sticker ut indikeras ocksa !angst ner samt ett spar 126. Referring now to Fig. 3, the habit of resilient tongue 112 has a first straight side 122 and a second straight side 124. The outer edge 114 is bag-shaped and defines a portion of a circular opening 116. The cradle 108 from which the resilient tongue protrudes anxiety down as well as a saving 126 are also indicated.
Figur 4 visar en tvarsnittsvy fran sidan av en fjadrande tunga 112. Sasom redan visats i figur 3 skjuter tungan 112 ut fran vaggen 108 och det finns spar 126 intill vaggen 108 pa den ovre 128 och nedre 130 sidan av tungan 112. Djupet "g" for sparen 126 anges ocksa i figur 4. Tjockleken pa en fjadrande tunga 112, vilket motsvarar g + tr + g i fig 4, uppgar till 1,5 till 4 mm och är typiskt sett ca 2 mm. Djupet g pa sparen 126 uppgar till 0,3-1,5 mm och är vanligtvis ca 0,5 mm. Figure 4 shows a cross-sectional view from the side of a resilient tongue 112. As already shown in Figure 3, the tongue 112 projects from the cradle 108 and there are grooves 126 adjacent the cradle 108 on the upper 128 and lower 130 side of the tongue 112. The depth "g" for the groove 126 is also indicated in figure 4. The thickness of a resilient tongue 112, which corresponds to g + tr + gi in figure 4, amounts to 1.5 to 4 mm and is typically about 2 mm. The depth of the groove 126 is 0.3-1.5 mm and is usually about 0.5 mm.
Figur 5 visar hur de yttre kanterna 114a-e av de fjadrande tungorna 112a-e i Oppningen 106 tillsammans avgransar bppningen 116. Tungorna är anordnade i samma plan och intill varandra pa ett sadant satt aft det inte finns 2013-11-07 9.49 \\smImefiiewc01\VVorkingCop es$\119120131021_21061476_Applicationtext_DET.310282.3.doc 7 nagot tippet utrymme mellan dem fOrutom vid Oppningen 116. Nar en borrstang ar inrymd i Oppningen 116 pa ett sadant satt aft ytterkanterna 114a-e ingriper med namnda stam erhalles en utmarkt tatning. Figure 5 shows how the outer edges 114a-e of the resilient tongues 112a-e in the opening 106 together delimit the opening 116. The tongues are arranged in the same plane and next to each other in such a way that there are no 7/13/2013 9.49 \\ smImefiiewc01 \ VVorkingCop es $ \ 119120131021_21061476_Applicationtext_DET.310282.3.doc 7 some space between them except at the opening 116. When a drill rod is housed in the opening 116 in such a manner as the outer edges 114a-e engage with the said stem, an excellent support is obtained.
Figur 6 visar den del av en bergborrenhet, dar en dammkontrollerande tatning 100 ar anordnad i en partiell inneslutning 132. Tatningen 100 inrymmer en borrstang 118 innefattande en borrkrona 119. Borren 119 har trangt genom tatningen 100 och ar redo aft borra. Figure 6 shows the part of a rock drilling unit where a dust control seal 100 is arranged in a partial enclosure 132. The seal 100 houses a drill rod 118 comprising a drill bit 119. The drill 119 is narrowly through the seal 100 and is ready to drill.
Figur 7 beskriver en mobil bergborrenhet innefattande en partiell inneslutning 132 inklusive den dammkontrollerande tatningen. Borrkronan 119 langst ut pa borrstangen 118 har borrat ett hl i berget 136. Den partiella inneslutningen och berget 136 definierar tillsammans ett slutet utrymme i narheten av det borrade halet. Stendamm som produceras i borrningsprocessen fOrhindras tan att komma ut fran det slutna utrymmet och fOrorenar narmiljOn, inklusive maskineriet 134 hos bergborrenheten. Figure 7 describes a mobile rock drilling unit comprising a partial enclosure 132 including the dust controlling seal. The drill bit 119 furthest out on the drill rod 118 has drilled a hole in the rock 136. The partial enclosure and the rock 136 together define a closed space near the drilled tail. Rock dust produced in the drilling process is prevented from coming out of the enclosed space and contaminates the near million, including the machinery 134 of the rock drilling unit.
Fackmannen inom teknikomradet inser aft fareliggande uppfinning pa intet satt ar begransad till de ovan beskrivna fOredragna utferingsformerna. Tvartom ar manga modifieringar och variationer mOjliga inom ramen for de bifogade patentkraven. Till exempel ar den yttre geometrin av den elastiska skivkonstruktionen 101 enbart visad aft vara cylindrisk som ett exempel. Those skilled in the art will appreciate that the present invention is in no way limited to the preferred embodiments described above. On the contrary, many modifications and variations are possible within the scope of the appended claims. For example, the outer geometry of the elastic disc structure 101 is shown only to be cylindrical as an example.
Andra geometrier, t.ex. en rektangular geometri, ar lika mojliga. Other geometries, e.g. a rectangular geometry, is equally possible.
Dessutom kan variationer av de beskrivna utfOringsformerna fOrstas och utforas av fackmannen vid uttivande av uppfinningen enligt kraven, tan en studie av ritningarna, beskrivningen och de bifogade kraven. I kraven utesluter ordet "innefattande" inte andra element eller steg, och den obestamda artikeln "en" eller "ett" utesluter inte ett flertal. Enbart det faktum aft vissa atgarder eller sardrag aterges i inbordes olika beroende krav betyder inte aft en kombination av dessa uppmatta inte kan anvandas med fOrdel. 2013-11-07 9 49 \\smimefilewc011VVorkingCopies$\119\20131021_21061476_Applicationtext_DET 310282.3 doc 8 In addition, variations of the described embodiments may be understood and performed by those skilled in the art upon practice of the invention according to the claims, a study of the drawings, the description and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude a plural. The mere fact that certain measures or features are included in the board's different dependent requirements does not mean that a combination of these measures cannot be used to advantage. 2013-11-07 9 49 \\ smimefilewc011VVorkingCopies $ \ 119 \ 20131021_21061476_Applicationtext_DET 310282.3 doc 8
Claims (9)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1350087A SE537317C2 (en) | 2013-01-28 | 2013-01-28 | Dust control seal for rock drilling, use of such seal and rock drilling unit including such seal |
| PCT/SE2013/051488 WO2014116158A1 (en) | 2013-01-28 | 2013-12-11 | Dust controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1350087A SE537317C2 (en) | 2013-01-28 | 2013-01-28 | Dust control seal for rock drilling, use of such seal and rock drilling unit including such seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE1350087A1 true SE1350087A1 (en) | 2014-07-29 |
| SE537317C2 SE537317C2 (en) | 2015-04-07 |
Family
ID=51227851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1350087A SE537317C2 (en) | 2013-01-28 | 2013-01-28 | Dust control seal for rock drilling, use of such seal and rock drilling unit including such seal |
Country Status (2)
| Country | Link |
|---|---|
| SE (1) | SE537317C2 (en) |
| WO (1) | WO2014116158A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437572A (en) * | 2015-10-23 | 2017-02-22 | 鄂托克前旗长城六号矿业有限公司 | Dry drilling opening dust extractor |
| CN109236216A (en) * | 2018-11-05 | 2019-01-18 | 济南力稳岩土工程有限公司 | A kind of down-the-hole drill device for reducing dust, down-the-hole drill and working method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3173502A (en) * | 1960-10-31 | 1965-03-16 | Terry A Overby | Rotating control head |
| SE370106B (en) * | 1973-02-01 | 1974-09-30 | Atlas Copco Ab | |
| US3965998A (en) * | 1974-12-19 | 1976-06-29 | Ingersoll-Rand Company | Dust control hood and dust control system |
| US4321975A (en) * | 1980-06-02 | 1982-03-30 | Dyer Ronald S | Slurry diverter |
| AT367163B (en) * | 1980-10-15 | 1982-06-11 | Ver Edelstahlwerke Ag | COMPRESSED AIR HAMMER |
-
2013
- 2013-01-28 SE SE1350087A patent/SE537317C2/en unknown
- 2013-12-11 WO PCT/SE2013/051488 patent/WO2014116158A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| SE537317C2 (en) | 2015-04-07 |
| WO2014116158A1 (en) | 2014-07-31 |
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