FI91436C - Rock drill feed bar - Google Patents

Rock drill feed bar Download PDF

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Publication number
FI91436C
FI91436C FI924284A FI924284A FI91436C FI 91436 C FI91436 C FI 91436C FI 924284 A FI924284 A FI 924284A FI 924284 A FI924284 A FI 924284A FI 91436 C FI91436 C FI 91436C
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FI
Finland
Prior art keywords
body part
grooves
feeder beam
sliding rails
sliding
Prior art date
Application number
FI924284A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI924284A0 (en
FI91436B (en
Inventor
Heikki Jantunen
Original Assignee
Tamrock Oy
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Filing date
Publication date
Application filed by Tamrock Oy filed Critical Tamrock Oy
Priority to FI924284A priority Critical patent/FI91436C/en
Publication of FI924284A0 publication Critical patent/FI924284A0/en
Priority to PCT/FI1993/000349 priority patent/WO1994007000A1/en
Priority to AU49616/93A priority patent/AU4961693A/en
Priority to ZA936691A priority patent/ZA936691B/en
Application granted granted Critical
Publication of FI91436B publication Critical patent/FI91436B/en
Publication of FI91436C publication Critical patent/FI91436C/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08Apparatus 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

Description

i 91436i 91436

Kallioporakoneen sytittOpalkkiRock Drill Ignition Bar

KeksinnOn kohteena on kallioporakoneen syiittOpalkki, jossa on kevytmetalliprofiilista muodostettu runko-osa ja 5 siihen kiinnitettyja kulutusta kestavammasta metallista muodostettuja liukukiskoja, joihin tukeutuen kallioporakoneen kelkan tai syiittdpalkin kehdon liukupinnat voivat liu-kua syttttdJpalkin suhteen, jolloin runko-osaan on muodostettu sen liukukiskoja vårten pituussuuntaisia uria.The invention relates to a rock drill bit with a body part formed of a light metal profile and 5 slide rails made of more durable metal attached to it, on the basis of which the sliding surfaces of the rock drill carriage or the beam of the rock beam can be slidably formed.

10 Kallioporakoneen sydttiipalkit on perinteisesti tehty joko teraslevyista tai -profiileista hitsaamalla tai vals-saamalla teras halutunmuotoiseksi profiiliksi. Nama raken-teet ovat varsin painavia ja tyOiaita tehda. Taman seurauk-sena myOs niiden aikaansaama kuormitus porauslaitteen puo-15 min paassa on suuri ja siten puomin rakenteet on suunnitel-tava tarpeettomana tukeviksi ja kestaviksi. Sy0tt6palkin painoa on yritetty vahentaa kayttamaiia varsinaisena sy6t-tiJpalkkirunkona kevytmetallista suulakepuristamalla aikaan-saatua runkoprofiilia, johon on kiinnitetty porakoneen 20 kelkan liukumisesta johtuvia kitkavoimia ja kulutusta pa-remmin kestavia terMksesta valmistettuja ohjaus- ja liukukiskoja. Tailaisia ratkaisuja on tunnettu muun muassa US-patentista 3,650.576, SE-kuulutusjulkaisusta 444 346 ja GB-hakemusjulkaisusta 2 216 440.10 Rock core drill core beams have traditionally been made of either steel plates or profiles by welding or Vals by making the steel the desired profile. These structures are quite heavy and laborious to make. As a result, the load they also impose on the drilling rig is high and thus the boom structures must be designed to be unnecessarily sturdy and durable. Attempts have been made to reduce the weight of the feed beam as an actual feed beam frame by extruding a light metal frame profile to which are attached the frictional forces due to the sliding of the drill carriage 20 and more wear-resistant steel guide and slide rails. Such solutions are known, inter alia, from U.S. Patent 3,650,576, SE Publication No. 444,346 and GB Application Publication No. 2,216,440.

25 US-patentissa 3,650,576 on esitetty ratkaisu, jossa runkoprofiilin sisapuolelle on asennettu U-muotoiset liuku-kiskot, joiden sisapuolelle porakoneen kelkan liukuosat asetetaan. U-kiskot on kiinnitetty runkoon kiristyspulteil-la, jotka painavat niiden alareunaa runkoprofiiliin pain, 30 kun runkoprofiiliin porattujen reikien lapi tyOnnettyihin kiinnityskappaleisiin kierrettyja pultteja kiristetaan. Taman ratkaisun valmistaminen on varsin kallista ja samoin liukukiskojen kiinnittamiseen on kaytettava useita pultteja, jotta ne pysyisivat kunnolla paikallaan. Samoin liuku-35 kiskojen vaihtaminen edellyttaa melkoista tydta ja kiinni- 2 tyskappaleiden muodon takia niiden asennus paikalleen on varsin hankalaa.U.S. Pat. No. 3,650,576 discloses a solution in which U-shaped slide rails are mounted on the inside of the frame profile, on the inside of which the sliding parts of the drill carriage are placed. The U-rails are fastened to the frame with clamping bolts which press their lower edge into the frame profile, when the bolts threaded into the fastening pieces inserted through the holes drilled in the frame profile are tightened. This solution is quite expensive to manufacture and likewise several bolts must be used to secure the slide rails to keep them properly in place. Likewise, the replacement of the slide-35 rails requires considerable support and, due to the shape of the fasteners, it is quite difficult to install them in place.

SE-kuulutusjulkaisussa 444 346 on esitetty ratkaisu, jossa runkoprofiiliin on muodostettu liukukiskojen muotoi-5 set ulkonemat profiilin pituussuuntaan ja liukukiskot on muodostettu ainakin jossain maarin jousimaisesta teraksesta niin, etta niiden sisflpinta on muodostettu poikkileikkauk-seltaan runkoprofiilin ulkonemien ulkopinnan muotoiseksi. Liukukiskot kiinnitetSSn paikalleen tyOntamållå ne runko-10 profiilin ulkonemia kohti, jolloin ne joustavat sisaan mennessaan ja jousivoimallaan pysyvat paikallaan. Tassa ratkaisussa heikkoutena on, etta liukukiskot kuormituksen alaiseksi joutuessaan vahitellen muokkautuvat ulkopinnal-taan ja siten ajanoloon saattavat irrota kiinnityksestaan. 15 Edelleen liukukiskojen mitoituksen on oltava varsin tarkka, jotta ne yleensa voitaisiin asentaa paikalleen ja saada pysymaan s i inå.SE-A-444 346 discloses a solution in which the frame profile is formed with protruding projections of the slide rails in the longitudinal direction of the profile and the slide rails are formed of at least some spring steel so that their inner surface is formed in cross-section with the outer profile of the frame profile. The slide rails are fixed in place by pushing them towards the protrusions of the frame-10 profile, so that they are flexible when entering and remain in place with their spring force. The disadvantage of this solution is that the sliding rails, when subjected to a load, gradually deform from their outer surface and thus may detach from their attachment over time. 15 Furthermore, the dimensions of the slide rails must be quite precise so that they can usually be installed and kept in place.

GB-hakemusjulkaisussa 2 216 440 on esitetty ratkaisu, jossa runkoprofiiliin muodostettuihin poikkileikkauk-20 seltaan kolmiomuotoisiin syvennyksiin on kiinnitetty poik-kileikkaukseltaan nelidmaiset liukukiskot asettamalla liukukiskojen sisaan kiinnityspalat, joihin on runkoprofiilin lapi kiinnitetty kiinnityspultti niin, etta kiinnityspalat puristavat liukukiskot runkoprofiilia vasten. Tama ratkaisu 25 on varsin monimutkainen ja edellyttaa melkoista maaraa pultti-kiinnityspala-pareja, jotta liukukiskot olisivat riittavan tukevasti ja liikkumattomasti runkoprofiilissa kiinni. Samoin tama rakenne tuo runkoprofiiliin liukukiskojen muodon ja rakenteen vuoksi ylimaaraista painoa ja li-30 saksi tyOstd on suhteellisen kallista. Edelleen liukukiskojen vaihtaminen on varsin tydiastå ja aikaavievaa.GB-A-2 216 440 discloses a solution in which triangular recesses with a triangular cross-section are attached to the cross-sectional recesses formed in the frame profile by inserting fastening pieces inside the slide rails. This solution 25 is quite complex and requires a considerable number of bolt-to-piece pairs in order for the slide rails to be sufficiently firmly and immovably attached to the frame profile. Likewise, this structure adds extra weight to the frame profile due to the shape and structure of the slide rails and the li-30 Saxony tyOstd is relatively expensive. Furthermore, changing the slide rails is quite tedious and time consuming.

Taman keksinnGn tarkoituksena on saada aikaan sel-lainen kallioporakoneen syOttOpalkki, jossa kevytmetalli-seen runkoprofiiliin voidaan helposti ja yksinkertaisesti 35 asentaa liukukiskot ilman, etta se edellyttaa monimutkaista 91436 3 tyOstOa tal suurta tyOmaaraa. Edelleen keksinnOn tarkoituk-sena on saada alkaan sellalnen kallioporakoneen syOttOpalk-ki, jossa liukukiskojen vaihtaminen on helppoa ja nopeata myOs kenttaolosuhteissa. KeksinnOn mukaiselle kallioporako-5 neen syOttOpalkille on ominaista, etta urien poikkileikkaus alnakin yhdessa kohdassa kapenee runko-osan plntaan pain ja etta liukukiskot on muodostettu poikkileikkaukseltaan sel-laiseksi, etta ne ovat asennettavissa uraansa vain runko-osan pituussuunnassa.The object of the present invention is to provide a feed beam for a rock drilling machine in which sliding rails can be easily and simply mounted on a light metal frame profile without the need for a complex work area. It is a further object of the invention to provide a feed bar for a rock drilling machine in which the replacement of the slide rails is easy and quick even in field conditions. The rock borehole feed beam according to the invention is characterized in that the cross-section of the grooves at one point in the basin narrows the weight of the body part and that the slide rails are formed in such a cross-section that they can be mounted in their grooves only in the longitudinal direction.

10 KeksinnOn olennainen ajatus on, etta runkoprofiiliin muodostetaan joko sita suulakepuristettaessa tai suulakepu-ristuksen jalkeen tyOstamaiia kaikkiin tarvittaviin liuku-pintoihin runkopalkin pituussuuntaiset urat, joihin voidaan tyOntaa edullisesti liuskamaiset liukukiskot niin, etta ne 15 pysyvat paikallaan profiilin ja uran muodon vaikutuksesta eivatka paase nousemaan pols urastaan. TailOin kukin liuku-kisko voidaan tyOntaa paikalleen runkoprofiilin paasta ja lukita helposti paikalleen joko syOttOpalkin toisessa tai molemmissa paissa olevilla kiinnitysruuveilla tai kiinnit-20 tamana syOttOpalkkiin paatykappaleet, jotka estavat liuku-kiskoja liukumasta syOttOpalkin pituussuunnassa.The essential idea of the invention is that longitudinal grooves in the frame beam are formed in the frame profile either during extrusion or after extrusion on all necessary sliding surfaces, into which the strip-like sliding rails can be pushed and . In this case, each slide rail can be pushed into place from the frame profile and easily locked in place either with the fastening screws on one or both ends of the feed beam or by attaching to the feed beam end pieces that prevent the slide rails from sliding along the feed beam.

KeksinnOn mukaisen syOttOpalkin etuna on, etta ke-vytmetallista valmistettuun runkoprofiiliin voidaan halutut liukukiskourat muodostaa yksinkertaisesti joko suulakepu-25 ristuksen aikana, jolloin edullisemmassa tapauksessa ei tarvita mitaan tyOstOja tai korkeintaan kevyt mittoihin tyOstO suulakepuristuksen jalkeen. Vastaavasti valmistetta-essa syOttOpalkki jyrsimaiia urat liukukiskoja vårten runkoprofiiliin suulakepuristuksen jalkeen, on tyOstaminen 30 helppoa, koska kevytmetallin tyOstO on huomattavasti yksin-kertaisempaa ja helpompaa kuin teraksen tyOstO. Nain olien tailaisen syOttOpalkin valmistaminen on helppoa ja lisaksi liukukiskojen vaihtaminen kulumisen tai muun syyn vuoksi on helppoa, koska ne yksinkertaisesti voidaan vetaa toisesta 35 paasta runkoprofiilia ulos ja tyOntaa vastaavasti uudet 4 tilalle.The advantage of the feed bar according to the invention is that the desired slide rails can be formed in the frame profile made of light metal simply either during extrusion, in which case, in a more preferred case, no work is required or at most light dimensions after extrusion. Correspondingly, in the production of the feed beam milled corners with slides on the slide profile after extrusion, the machining is easy because the machining of the light metal is considerably simpler and easier than the machining of the steel. Thus, it is easy to make a Thai feed beam and, in addition, it is easy to change the slide rails due to wear or other reason, because they can simply be pulled out of another 35-piece frame profile and the new 4 ones can be pushed accordingly.

Keksintoa selostetaan lahemmin oheisissa piirustuk-sissa, joissa kuvio 1 esittaa kaavamaisesti kallioporakoneen syOt-5 tOpalkkia kallioporakoneineen, kuvio 2 esittaa kaavamaisesti erasta keksinnOn mu-kaisen syOttOpalkin poikkileikkausta ja kuviot 3a ja 3b esittavat kaavamaisesti erasta tois-ta keksinnOn mukaista syOttOpalkin sovellutusmuodon poikki-10 leikkausta.The invention will be described in more detail in the accompanying drawings, in which Fig. 1 schematically shows a feed beam of a rock drilling machine with a rock drilling machine, Fig. 2 schematically shows a cross-section of a feed beam according to the invention and Figs. 3a and 3b show .

Kuviossa 1 on esitetty kaavamaisesti sivulta katsot-tuna kallioporakoneen syOttOpalkki 1, joka on kiinnitetty pituussuunnassaan liukuvasti kehtoon 2. SyOttOpalkin 1 toiselle puolelle on asennettu kelkan 3 avulla syOttOpalkin 15 1 suhteen liukuvasti kallioporakone 4, joka pyOrittaa si- nansa tunnetulla tavalla poratankoa 5. Porakoneen kelkan ja syOttOpalkin seka vastaavasti syOttOpalkin ja kehdon va-listen liikkeiden aikaansaamiseen tarvittavat vaiineet ja voimalaitteet ovat sinansa yleisesti taysin tunnettuja eika 20 niita sen vuoksi katsota tarpeelliseksi tassa tarkemmin selittaa.FIG. and the silencers and power devices required to cause the movements between the feed bar and the feed bar and the cradle, respectively, are generally well known per se and are therefore not considered necessary to explain in more detail here.

Kuviossa 2 on esitetty eras keksinnOn mukaisen syOttOpalkin poikkileikkaus kaavamaisesti. SyOttOpalkin 1 run-ko-osa 11 on muodostettu suulakepuristamalla alumiini- tai 25 muuta kevytmetalliseosta, jolloin runko-osa 6 on muodostu-nut poikkileikkaukseltaan esimerkiksi kuviossa 2 esitetyn mukaisesti. Runko-osaan 6 on suulakepuristettaessa samalla muodostettu liukukiskoja vårten sen molemmille puolille urat 7a ja 7b ja vastaavasti kehdon liukukiskoja vårten 30 urat 8a ja 8b sen molemmille puolille. Urat 7a, 7b ja 8a, 8b on kuviossa 2 muodostettu poikkileikkaukseltaan lohen-pyrstOmåiseksi niin, etta ne ovat runko-osan 6 pinnassa kapeimmillaan ja ne laajenevat runko-osan 6 pinnasta si-saanpain. Olennaista on, etta urien poikkileikkaus ainakin 35 yhdessa kohdassa kapenee runko-osan 6 pintaan pain. Kuhun- 91436 5 kin uraan 7a, 7b ja vastaavastl 8a, 8b on runko-osan 6 pituussuunnassa tyiinnetty uriin 7a ja 7b porakoneen kelkan 3 liukukiskot 9a ja 9b ja vastaavastl uriin 8a ja 8b kehdon liukukiskot 10a ja 10b. Kun liukukiskot 9a ja 9b sekd 10a 5 ja 10b ovat poikkileikkaukseltaan puolisuunnikkaan muotoi-sia, ne saadaan uriin 7a ja 7b ja vastaavastl 8a ja 8b tiiviisti ja niin, ettd ne eivdt p&dse tulemaan uristaan ulos pintaa vastaan sen poikkisuunnassa, vaan ne voidaan tyiintaa uriin ja vastaavasti vetdd pois urista vain pinnan 10 suuntaisesti eli runko-osan 6 pituussuunnassa. Kuten ku-viossa 2 sen oikealla puolella on esitetty tai kelkattomas-sa kallioporakoneessa sen runkoon rouodostetut, osuvat kelkan 3 liukupinnat, jotka tyypillisesti on muodostettu eril-lisista liukupaloista 3a, kosketukseen liukukiskojen 9a ja 15 9b ulkopintojen kanssa ja vastaavasti kehdon 2 liukupinnat, jotka tyypillisesti my6s on muodostettu erillisistd liuku-kappaleista 2a, kosketuksiin liukukiskojen 10a ja 10b ulko-pintoihin. Kun liukukiskot 9a ja 9b sekd 10a ja 10b on muodostettu ter&ksestd, kestdvét ne kulutusta erittdin hyvin 20 ja ndin olien sydttOpalkki 1 liukuu kehdon 2 suhteen ja vastaavasti porakoneen 4 kelkka 3 liukuu syiJttdpalkin 1 suhteen helposti. Kun liukukiskot 9a ja 9b ja vastaavasti 10a ja 10b kuluvat riittdvdsti, samoin kuin sindnsd tunne-tulla tavalla kelkan ja kehdon liukukappaleet 3a ja 2a, 25 ovat kaikki yksinkertaisesti vaihdettavissa. Liukukiskot 9a, 9b j a 10a, 10b voidaan helposti vetdd ulos runko-osan 6 urista ja korvata uusilla tyiJntdmaild uudet uriin runko-osan 6 pituussuunnassa.Figure 2 schematically shows a cross-section of a feed bar according to the invention. The run portion 11 of the input beam 1 is formed by extruding an aluminum or other light metal alloy, the frame portion 6 being formed in cross section as shown, for example, in Fig. 2. At the same time, when the extruder is extruded, grooves 7a and 7b are formed on both sides of the body part 6, and grooves 8a and 8b on the cradle of the cradle 30 are formed on both sides thereof, respectively. The grooves 7a, 7b and 8a, 8b in Fig. 2 are formed in a salmon-tail-shaped cross-section so that they are at their narrowest on the surface of the body part 6 and extend inwardly from the surface of the body part 6. It is essential that the cross-section of the grooves at at least one point narrows to the surface of the body part 6. In each of the grooves 7a, 7b and 8a, 8b, respectively, in the longitudinal direction of the body part 6, the sliding rails 9a and 9b of the drill carriage 3 are inserted into the grooves 7a and 7b and the cradle sliding rails 10a and 10b, respectively. When the slide rails 9a and 9b and 10a 5 and 10b are trapezoidal in cross section, they are obtained in the grooves 7a and 7b and 8a and 8b, respectively, tightly and so as not to come out of their grooves against the surface in its transverse direction and can be pushed into the grooves and correspondingly, pull out of the grooves only parallel to the surface 10, i.e. in the longitudinal direction of the body part 6. As shown in Fig. 2 on its right side or rusted on its body in a sledless rock drilling machine, the sliding surfaces of the carriage 3, typically formed of separate slides 3a, contact the outer surfaces of the slide rails 9a and 15b and the sliding surfaces of the cradle 2, respectively. is also formed of separate sliding bodies 2a, in contact with the outer surfaces of the sliding rails 10a and 10b. When the slide rails 9a and 9b and 10a and 10b are formed steel, they withstand the wear very well and the core beam 1 slides relative to the cradle 2 and the carriage 3 of the drilling machine 4 slides easily relative to the feed beam 1, respectively. When the slide rails 9a and 9b and 10a and 10b, respectively, wear sufficiently, as well as in the known manner, the slide pieces 3a and 2a, 25 of the carriage and the cradle are all simply replaceable. The slide rails 9a, 9b and 10a, 10b can be easily pulled out of the grooves of the body part 6 and replaced with new pushers in the longitudinal direction of the body part 6.

Liukukiskot 9a, 9b j a vastaavasti 10a, 10b voidaan 30 kiinnittaa runko-osaan 6 esimerkiksi k&ytt&m&lia kuviossa 2 esimerkinomaisesti esitettyjd kiinnitysruuveja 11a ja lib. Ne on ruuvattu runko-osaan 6 liukukiskojen 10a ja 10b toiseen p&£h&n muodostettujen reikien 1dpi, jolloin ne estdvdt liukukiskoja 10a ja 10b liukumasta pituussuunnas-35 saan. Vastaavalla tavalla voidaan kaikki liukukiskot 9a ja 6 9b ja vastaavasti 10a ja 10b kiinnittaa talla tavalla ruu-veilla joko toisesta paastaan tal molemmlsta paistaan mikali niin halutaan.The slide rails 9a, 9b and 10a, 10b, respectively, can be fastened to the body part 6, for example, by using the fastening screws 11a and lib exemplified in Fig. 2. They are screwed into the body part 6 in the second part of the holes 1dpi formed by the slide rails 10a and 10b, whereby they prevent the slide rails 10a and 10b from sliding in the longitudinal direction-35. Correspondingly, all the slide rails 9a and 69b and 10a and 10b, respectively, can be screwed in this way with screws from either side of both sides if desired.

Kuviossa 3a on esitetty vaihtoehtoinen toteutusmuoto 5 keksinndn mukaiselle syOttdpalkille. Tassa toteutusmuodossa on sydttdpalkin runko-osaan 6 muodostettu poikkileikkauk-seltaan T-muotoiset urat 17a, 17b ja 18a, 18b, jotka on jyrsitty profiiliin sen jalkeen, kun prof1111 on suulakepu-ristettu. Runko-osaan 6 on voitu esimerkiksi suulakepuris-10 tusvaiheessa muotoilla alustavasti kuviossa 3b esitetylia tavalla kevennyssyvennykset 6a, jotka helpottavat T-uran jyrsimista. T-uraan on tyttnnetty kuvion 2 esittamåssa ta-pauksessa runko-osan 6 paasta lattamaiset liukukiskot 19a ja 19b seka vastaavasti 20a ja 20b. Tassa tapauksessa voi-15 daan kayttaa taysin lattamaisia ja siten olennaisesti suo-rakaiteen muotoisia liukukiskoja, koska T-haaran reunat estfivat niita siirtymasta runko-osan 6 pintaan pain. Tassa sovellutusmuodossa on liukukiskot 19a, 19b ja 20a, 20b kiinnitetty paikalleen asentamalla sydttdpalkkiin runko-20 osan 6 pSihin pSStylevyt 21, jotka pitSvSt kaikki liukukiskot 19a, 19b ja 20a, 20b paikallaan. TSlldin liukukiskojen valhtaminen kSy yksinkertaisesti poistamalla pSStylevy 21 ja vetamailS tarvittavat liukukiskot ulos ja tydntamaiia jalleen uudet niiden sisalle. Kuten kuviossa 3c ilmenee, on 25 tassa tapauksessa porakoneen 4 kelkkaan 3 kiinnitetyt liu-kupalat 3a muodostettu niin korkeaksi, etta ne ulottuvat liukukiskojen 9a ja 9b pintaan ilman, etta kelkan 3 runko muuten koskee sydttdpalkin runko-osaan 6. Vastaavalla tavalla mitoitetaan kehdon 2 liukupalat 2a.Figure 3a shows an alternative embodiment 5 for an input bar according to the invention. In this embodiment, T-shaped grooves 17a, 17b and 18a, 18b in cross-section are formed in the body part 6 of the core beam, which are milled into the profile after the extrusion has been extruded. For example, in the extrusion step of the body part 6, it is possible to preliminarily shape the relief recesses 6a as shown in Fig. 3b, which facilitate the milling of the T-groove. In the case shown in Fig. 2, the T-groove is filled with flat sliding rails 19a and 19b and 20a and 20b, respectively, of the body part 6. In this case, it is possible to use completely flat and thus substantially rectangular sliding rails, since the edges of the T-branch prevent them from moving to the surface of the body part 6. In this embodiment, the slide rails 19a, 19b and 20a, 20b are fixed in place by mounting on the core beam the mounting plates 21 of the body-20 part 6, which hold all the slide rails 19a, 19b and 20a, 20b in place. To cast the TSlld slide rails, simply remove the base plate 21 and pull out the necessary slide rails and refill the new ones inside them. As shown in Fig. 3c, in this case, the Liu bubbles 3a fixed to the carriage 3 of the drilling machine 4 are formed so high that they extend to the surface of the slide rails 9a and 9b without the carriage body otherwise touching the core beam body 6. 2a.

30 KeksinnOn edelia esitetyssa sovellutusmuodossa on lahdetty siita, etta liukukiskot ovat tarvittaessa vaihdet-tavissa, kun ne ovat tarpeeksi kuluneet. Keksintd voidaan toteuttaa myds niin, etta kaytetaan paksuudeltaan sellaisia liukukiskoja, joiden kestoika kulumisen kannalta on vahin-35 taan yhta pitka kuin syfittdpalkin runko-osan kestoika kay- 91436 7 tGssa. TSllOin voidaan kayttaa esimerkiksi paksuudeltaan 3 - 5 mm paksuja liukukiskoja ja kiinnittaa ne paikoilleen esimerkiksi edelia esitetyilia tavoilla. Vaihtoehtoisesti voidaan liukukiskot kiinnittaa uriinsa esimerkiksi prassaa-5 maiia urien reunoja runko-osaan pain muodostamaan tiukka puristusliitos ja sovitus liukukiskon ja runko-osan vaiil-le. Samoin on mahdollista tiivistaa liukukiskon ja runko-osan vaiiset raot kayttamaiia sopivaa tiivistysainetta niin, etta porasoija ja muut epapuhtaudet eivåt paase sinne 10 vaiiin. Kayttamaiia tailaisia paksumpia liukukiskoja on syttttGpalkin liukukiskot mahdollista tehda myGs kahdesta tai useammasta syGttGpalkkia lyhyemmasta liukukiskon osas-ta, jolloin niiden kuljettaminen ja varastointi on helpom-paa.In the embodiment of the invention described above, it is assumed that the slide rails can be replaced if necessary when they are sufficiently worn. The invention can also be carried out by using sliding rails of a thickness which is at least as long in terms of wear as the duration of the body of the sifit beam in 91436 7 tG. For example, slide rails with a thickness of 3 to 5 mm can be used with TS11O and fastened in place, for example in the ways described above. Alternatively, the slide rails can be attached to their grooves, for example prase-5 ground edges of the grooves, in the body part to form a tight press connection and fit to the grooves of the slide rail and the body part. It is also possible to seal the silent slits of the slide rail and the body part with a suitable sealing material so that the drill bit and other impurities do not escape there. It is possible to make the sliding rails of the ignition beam from two or more parts of the sliding rail shorter than the sparking beam, which makes them easier to transport and store.

15 Edelia selityksessa ja piirustuksissa on keksintGa esitetty vain esimerkinomaisesti eika sita ole miliaan tavoin rajoitettu niihin. Runko-osa 6 voi olla poikkileik-kaukseltaan monenmuotoinen, riippuen kaytettavasta kal-lioporakoneesta ja muusta sovellutuksesta. Samoin liukukis-20 kojen poikkileikkaus ja vastaavasti runko-osaan 6 muodos-tettujen urien poikkileikkaus voi vaihdella varsin monin tavoin, kunhan liukukisko voidaan tyOntaa runko-osaan sen pituussuunnassa ja ne pysyvåt paikallaan voimatta siirtya runko-osasta 6 poikkisuunnassa ulospain joko kiilamaisten 25 ulokkeiden tai muiden uran muodosta johtuvien esteiden vuoksi. Liukukiskot voidaan kiinnittaa pituussuunnassaan liikkumattomasti runko-osan suhteen useilla eri tavoin mukaanlukien erilaiset sokkaliitokset, puristusliitokset, kiinnitysmassat, liimat jne. Kallioporakoneen liukupinnoil-30 la tarkoitetaan tassa patenttihakemuksessa ja patenttivaa- timuksissa seka kuviossa esitetyn kallioporakoneeseen kiin-nitetyn kelkan liukupintoja etta ratkaisua, jossa kallioporakoneen runko on muodostettu yhtenaiseksi niin, etta se voidaan asentaa liukumaan syGttGpalkkia pitkin ilman 35 erillista kelkkaa, jolloin liukupinnat on muodostettu kal- 8 lioporakoneen runkoon esimerkiksi samalla tavalla kuin tyypillisesti nykyisin kSytettSvissfi kelkkarakenteissa tai myiis muulla sopivalla tavalla.In the foregoing description and drawings, the invention is shown by way of example only and is not limited thereto. The body part 6 can be of various cross-sections, depending on the rock drilling machine used and other applications. Likewise, the cross-section of the slide rails 20 and the cross-section of the grooves formed in the body part 6, respectively, can vary in quite a number of ways, as long as the slide rail can be pushed into the body part in its longitudinal direction and remain in place without being able to move from the body part 6 transversely. due to obstacles due to the shape of the career. The sliding rails can be fixed fixed in their longitudinal direction with respect to the body part in a number of different ways, including various joints, compression joints, fixing masses, adhesives, etc. is formed uniformly so that it can be mounted to slide along the gyDttG beam without 35 separate carriages, the sliding surfaces being formed on the body of a rock drilling machine, for example in the same way as is typically used today in carriage structures or in other suitable ways.

Claims (10)

1. Matarbalk 1 en bergborrmaskin, vllken matarbalk uppvlsar en stomdel (6) av lattmetallprofil och d&ri fasta 5 glidskenor av en slltstarkare metal1, varvid glldytorna på bergborrmaskinens (4) kålke eller matarbalkens (1) vagga (2) kan stbda sig mot glldskenorna och glida 1 fOrhållande till matarbalken (1), varvid langsgående spår (7a, 7b; 8a, 8b; 17a, 17b; 18a, 18b) ar utformade i stomdelen (6) fOr 10 dess glidskenor, kannetecknad darav, att spårens (7a, 7b; 8a, 8b; 17a, 17b; 18a, 18b) tvarsnitt åt-minstone på ett stalle avsmalnar mot stomdelens (6) yta och att glldskenorna (9a, 9b; 10a, 10b; 19a, 19b; 20a, 20b) har sådana tvarsnitt att de kan stailas i sina spår 15 (7a, 7b; 8a, 8b; 17a, 17b; 18a, 18b) enbart i stomdelens (6) langdriktning.1. Feeder beam 1 in a rock drill, each feeder beam sustains a body part (6) of flat metal profile and thus fixed 5 slides of a stronger metal1, whereby the sliding surfaces of the rock of the rock drill (4) or the feeder beam (1) can bump against glare slide 1 with respect to the feed beam (1), wherein longitudinal grooves (7a, 7b; 8a, 8b; 17a, 17b; 18a, 18b) are formed in the body part (6) for its sliding rails, characterized in that the grooves (7a, 7b) ; 8a, 8b; 17a, 17b; 18a, 18b) cross-section at least on a stable tapered to the surface of the body part (6) and that the slides (9a, 9b; 10a, 10b; 19a, 19b; 20a, 20b) have such cross-sections that they can be styled in their grooves 15 (7a, 7b; 8a, 8b; 17a, 17b; 18a, 18b) only in the longitudinal direction of the body part (6). 2. Matarbalk enligt patentkrav 1, kannetecknad darav, att stomdelen (6) ar utformad i lattmetall genom strangsprutning och att spåren (7a, 7b; 20 8a, 8b; 17a, 17b; 18a, 18b) ar utformade i stomdelen (6) i samband med strangsprutningen.Feeder beam according to claim 1, characterized in that the body part (6) is formed in flat metal by extrusion and that the grooves (7a, 7b; 8a, 8b; 17a, 17b; 18a, 18b) are formed in the body part (6) in associated with the extrusion. 3. Matarbalk enligt patentkrav 1, kannetecknad darav, att spåren (17a, 17b; 18a, 18b) ar åtminstone delvis utformade i stomdelen (6) genom bearbet- 25 ning i efterhånd.Feeder beam according to claim 1, characterized in that the grooves (17a, 17b; 18a, 18b) are at least partially formed in the body part (6) by subsequent machining. 4. Matarbalk enligt något av patentkraven 1 - 3, kannetecknad darav, att åtminstone en del av spåren (17a, 17b; 18a, 18b) har ett vasentligen T-formigt tvarsnitt.Feeder beam according to any one of claims 1 to 3, characterized in that at least part of the grooves (17a, 17b; 18a, 18b) have a substantially T-shaped cross-section. 5. Matarbalk enligt något av patentkraven 1 - 3, kannetecknad darav, att åtminstone en del av spåren (7a, 7b; 8a, 8b) respektive glidskenorna (9a, 9b; 10a, 10b) har ett sk. laxstjartformigt tvarsnitt.Feeder beam according to any one of claims 1 to 3, characterized in that at least part of the grooves (7a, 7b; 8a, 8b) and the sliding rails (9a, 9b; 10a, 10b) respectively have a so-called. salmon-tailed cross section. 6. Matarbalk enligt patentkrav 4, k a η n e -35 tecknad darav, att åtminstone en del av glidskenor- na (19a, 19b; 20a, 20b) har ett vSsentligen rektangulSrt tvarsnitt.Feeder beam according to claim 4, characterized in that at least part of the sliding rails (19a, 19b; 20a, 20b) have a substantially rectangular cross section. 7. Matarbalk enligt något av de foregående patentkraven, kannetecknad darav, att glidskenorna 5 (9a, 9b; 10a, 10b) ar fasta i stomdelen (6) med hjalp av en bult (11a) eller liknande, som går genom glidskenornas ånde och ar skruvad in i stomdelen (6).Feeder beam according to one of the preceding claims, characterized in that the sliding rails 5 (9a, 9b; 10a, 10b) are fixed in the body part (6) with the aid of a bolt (11a) or the like, which passes through the spirit and the rails of the sliding rails. screwed into the body part (6). 8. Matarbalk enligt något av patentkraven 1-6, kannetecknad darav, att glidskenorna (19a, 10 19b; 20a, 20b) ar fasta i stomdelen (6) med hjalp av and- plattor (21) monterade i dess andar, vilka plattor hindrar glidskenorna (19a, 19b; 20a, 20b) från att glida ut ur stomdelens (6) ånde.Feeder beam according to any one of claims 1-6, characterized in that the sliding rails (19a, 19b; 20a, 20b) are fixed in the body part (6) with the aid of duct plates (21) mounted in its spirits, which obstruct the plates. the sliding rails (19a, 19b; 20a, 20b) from sliding out of the body of the body (6). 9. Matarbalk enligt något av de foregående patent-15 kraven, kannetecknad darav, att glidskenorna (9a, 9b; 19a, 19b; 20a, 20b) kan aviagsnas från spåren (7a, 7b; 8a, 8b, 17a, 17b; 18a, 18b) utformade i stomdelen (6) i stomdelens (6) langdriktning.Feeder beam according to any of the preceding claims, characterized in that the sliding rails (9a, 9b; 19a, 19b; 20a, 20b) can be removed from the grooves (7a, 7b; 8a, 8b, 17a, 17b; 18a, 18b) formed in the body part (6) in the longitudinal direction of the body part (6). 10. Matarbalk enligt något av de foregående patent-20 kraven, kannetecknad darav, att åtminstone en del av glidskenorna ar utformade av minst två glidskens-delar kortare an matarbalken (1). • «Feeder beam according to any one of the preceding claims, characterized in that at least part of the sliding rails are formed of at least two sliding parts shorter than the feeder beam (1). • «
FI924284A 1992-09-24 1992-09-24 Rock drill feed bar FI91436C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI924284A FI91436C (en) 1992-09-24 1992-09-24 Rock drill feed bar
PCT/FI1993/000349 WO1994007000A1 (en) 1992-09-24 1993-09-02 Feed beam for rock drill
AU49616/93A AU4961693A (en) 1992-09-24 1993-09-02 Feed beam for rock drill
ZA936691A ZA936691B (en) 1992-09-24 1993-09-10 Feed beam for rock drill

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI924284 1992-09-24
FI924284A FI91436C (en) 1992-09-24 1992-09-24 Rock drill feed bar

Publications (3)

Publication Number Publication Date
FI924284A0 FI924284A0 (en) 1992-09-24
FI91436B FI91436B (en) 1994-03-15
FI91436C true FI91436C (en) 1994-06-27

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Application Number Title Priority Date Filing Date
FI924284A FI91436C (en) 1992-09-24 1992-09-24 Rock drill feed bar

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AU (1) AU4961693A (en)
FI (1) FI91436C (en)
WO (1) WO1994007000A1 (en)
ZA (1) ZA936691B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI93482C (en) * 1993-09-03 1995-04-10 Tamrock Oy Arrangement for installing sliders
US7371009B1 (en) 2004-06-30 2008-05-13 J.H. Fletcher & Co. Split gib mounting arrangement for drilling components

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1128109A (en) * 1914-07-01 1915-02-09 Walter B Chalfant Cross-head.
US3053580A (en) * 1960-03-16 1962-09-11 Bullard Co Slide bearing
US3650576A (en) * 1970-11-20 1972-03-21 Ingersoll Rand Co Liner for aluminum drill guide feed
CH591641A5 (en) * 1975-11-26 1977-09-30 Hydrel Ag
SE444346C (en) * 1984-04-27 1987-11-24 Atlas Copco Ab FEEDBACK FOR MOUNTAIN DRILLING MACHINE RELATED TO A PROFILE BALK
DE3917673C1 (en) * 1989-05-31 1990-06-13 Ina Linear Technik Ohg, 6650 Homburg, De

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WO1994007000A1 (en) 1994-03-31
FI924284A0 (en) 1992-09-24
AU4961693A (en) 1994-04-12
ZA936691B (en) 1994-04-29
FI91436B (en) 1994-03-15

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