SE532868C2

SE532868C2 - rock Drill

Info

Publication number: SE532868C2
Application number: SE0702157A
Authority: SE
Inventors: Hannu Paasonen
Original assignee: Doofor Oy
Priority date: 2007-09-27
Filing date: 2007-09-27
Publication date: 2010-04-27
Also published as: SE0702157L

Description

25 30 35 532 B58 försedd med en tryckyta I det följande beskrivs uppfinningen närmare med hänvisning till bifogade ritning, där Figur 1 föreställer ett sidosnitt av borrmaskinen i borrningsläge, och Figur 2 föreställer ett sidosnitt av borrmaskinen i dragläge. 535 B58 provided with a pressure surface In the following, the invention is described in more detail with reference to the accompanying drawing, where Figure 1 shows a side section of the drilling machine in drilling position, and Figure 2 shows a side section of the drilling machine in pulling position.

Figur 1 visar en borrmaskin, som är törsedd med ram 3 och 4, där det inne i ramen finns en i axialrilctning rörlig roterande borrstång 2. Borrstång 2 roteras med hjälp av roterande axel 5, som kommer från slagapparaten, från vilken rotationen via kuggväxel 15 leds till borrstångens 2 hylsa 6 på utsidan. Hylsans 6 inre hål är räfflad och i borrstång 2 ﬁnns en motsvarande räfflad del 7, som överför rotationen till borrstång 2 och låter borrstången röra sig axialt så mycket det behövs. I borrningssituation enligt figur 1 slår kolven, som producerar fram och tillbaka slagpulser, borrstângens 2 bakända och får till stånd en pulsar framåt överförande funktion. På borrstångens 2 framsida är en slagande borr- utrustning kopplad, vars pulser kan överföras medelst borrstången 2.Figure 1 shows a drilling machine, which is torqueed with frames 3 and 4, where inside the frame there is a rotating drill rod 2 movable in axial direction. is led to the sleeve 6 of the drill rod 2 on the outside. The inner hole of the sleeve 6 is knurled and in drill rod 2 there is a corresponding knurled part 7, which transmits the rotation to drill rod 2 and allows the drill rod to move axially as much as necessary. In the drilling situation according to Figure 1, the piston, which produces reciprocating pulse pulses, strikes the rear end of the drill rod 2 and produces a pulsating forward transmitting function. On the front of the drill rod 2 a striking drilling equipment is connected, the pulses of which can be transmitted by means of the drill rod 2.

Till borrstâng 2 hör enligt uppfinningen, borrstången 2 ﬂyttande hylsa 9, som i denna borrningssittiation är fritt driven till sin ﬁ-ämsta ställning och är därför så långt från till borrstång 2 hörande ansatsmotyta 12, att motytan 12 inte når ﬂytthylsans 9 motyta 13 när borrstång 2 gör till borrningssitiiationen hörande ﬁam och tillbaka rörelse. I figur 1 är borrstång 2 i bakersta möjlig position och även den önskade positionen alltid just när kolv l slår i borrstångens 2 bakända På grund av slagpulserna rör sig borrstången 2 några millimeter framåt och kommer tillbaka Flytthylsan 9 ﬁmgerar såsom kolven 1 i cylinderutrymmet, som formats i borrmaskinens ram 3. Genom en kanal 8 leds inget medium till cylínderutrymmet i borrningssituation, utan man låter, genom till kanal 8 ansluten ventil, mediumet rinna ut från cylinderutrymmet, så att hylsan 9 kan drivas till en position som i ﬁgur 1 och bli där. Borrstångens 2 rnotyta 12 slår i sista hand ﬂytthylsans 9 ring 10 och ﬂyttar ﬂytthylsan till ﬁgurens 1 läge.According to the invention, the drill rod 2 belongs to the drill rod 9 ﬂ extending sleeve 9, which in this drilling situation is freely driven to its ﬁ -most position and is therefore so far from the shoulder mat surface 12 belonging to the drill rod 2 that the mat surface 12 does not reach the surface 13 of the sleeve sleeve 9 when the drill rod 2 makes the drilling situation belonging to ﬁ am and back movement. In figure 1 the drill rod 2 is in the rearmost possible position and also the desired position always just when piston 1 strikes the rear end of the drill rod 2 Due to the impact pulses the drill rod 2 moves a few millimeters forward and comes back The transfer sleeve 9 in a frame 8 of the drilling machine. No medium is led to the cylinder space in the drilling situation, but through the valve connected to channel 8 the medium is allowed to flow out of the cylinder space, so that the sleeve 9 can be driven to a position as in Figure 1 and remain there. . The drill surface 2 of the drill rod 2 ultimately strikes the ring 10 of the surface sleeve 9 and ﬂ moves the surface sleeve to the position of the 1 clock 1.

Med hjälp av den nya enkla ﬂytthylselösningen 9 enligt uppﬁnningen, är det lätt att producera slagpulsar, vilka underlättar utdragning av borrutrustningen ﬁrån hålet. Vid utdragning av borrutrustningen produceras med hjälp av kolven l slagpulsar, liksom också då hålet borras. Vid utdragning ﬂyttas ﬂytthylsan 9 mot slagkolven 1. Figur 1 visar att ﬂytthylsan 9 har motytan 14 på bestämt avstånd mot borrmaskinens bakända, när ﬂytthylsan flyttas i den riktning. Flytthylsans 9 ﬂyttning sker i detta exempel med hjälp 532 BBS 3 av medium, vilket leds genom kanal 8 mot ﬂytthylsans 9 tryckyta 16. Trycket lämnas att verka i kanal 8 så länge hela utdragningen pågår. När ﬂytthylsan 9 är i ﬁgurens 2 läge, genom den till 'rjäderorgan ll ansluten ring 10, skjuter alltid borrstång 2 mot slagkolven till valt startläge. När kolven l slår, går slagpulsen ﬁ~ån borrstången 2 över till ﬁäderorgan ll i form av bunden energi, och en del av slaget går över till ram 3, 4.With the help of the new simple surface sleeve solution 9 according to the invention, it is easy to produce impact pulses, which facilitate extraction of the drilling equipment from the hole. When pulling out the drilling equipment, impact pulses are produced with the aid of the piston, as well as when the hole is drilled. When pulling out, the surface sleeve 9 is moved towards the percussion piston 1. Figure 1 shows that the surface sleeve 9 has the opposite surface 14 at a certain distance from the rear end of the drilling machine, when the surface sleeve is moved in that direction. The movement of the transfer sleeve 9 takes place in this example by means of 532 BBS 3 of medium, which is led through channel 8 towards the pressure surface 16 of the surface sleeve 9. The pressure is left to act in channel 8 as long as the entire extraction is in progress. When the surface sleeve 9 is in the position of the gear 2, through the ring 10 connected to the spring means 11, the drill rod 2 always pushes against the percussion piston to the selected starting position. When the piston 1 strikes, the stroke pulse ﬁ ~ from the drill rod 2 passes to the spring means ll in the form of bound energy, and a part of the stroke passes to frame 3, 4.

Borr-utrustningen gör ett mindre slag i hålet. I ﬁäderorganen 1 bunden energi lämnar borrstången tillbaka med kraﬁíg puls mot slagkolven och drar samtidigt borrutrustriingen i hålet även bortåt.The drilling equipment makes a small hole in the hole. In the spring-bound energy in the spring members 1, the drill rod returns with a strong pulse towards the percussion piston and at the same time pulls the drilling equipment in the hole also away.

Vid utdragning, då slagkolven producerar pulser till borrstången 2, kan man vända pulsarnas effekt till utdragande från hålet med hjälp av hylsan 9 och med hjälp av till den hörande energi lagrande och överlåtande ﬁäderorgan 11. Vid utdragning dras borrmaskinens ram 3, 4 med lämplig kraft bortåt från hålet. Ram 3, 4 representerar stor massa och borrstången 2, och borrutrustningen liten massa och sålunda snabb rörelse.When extracting, when the percussion piston produces pulses to the drill rod 2, the effect of the pulses can be turned to extraction from the hole by means of the sleeve 9 and by means of storage and transfer der spring means 11 associated with the associated energy. away from the hole. Frame 3, 4 represents large mass and the drill rod 2, and the drilling equipment small mass and thus fast movement.

Borruuustningens utdragning från hålet förbättras väsentligt, när man till borrutrusmingens kan leda en liten fram och tillbaka rörelse tillägg med jämn dragkraﬁ.The extraction of the drilling rig from the hole is significantly improved, when a small reciprocating movement can be led to the drilling equipment with an even traction ﬁ.

Claims

53.2 '858 PATENT CLAIMS

A mountain dwelling machine, to which belongs a frame (3, 4); a drill rod arranged in the frame and movable in the axial direction (2); an arrangement (5) for rotating the drill rod (2); a percussion apparatus with which percussion pulses are produced to a piston (1) adapted to strike the rear end of the drill rod (2) for transmitting percussion pulses via the drill rod to a drilling device attached to the end of the drill rod and to which drilling machine further belongs one around the drill rod ( 2) adapted ﬂ surface sleeve (9) and an arrangement concerning ﬂ expression of ﬂ surface sleeve axially directed towards the percussion piston (1) so that a counter surface (13) belonging to the ﬂ surface sleeve (9) hits a shoulder surface (12) on the drill rod (2), the drill rod when mentioned prolonged surface movement can be extended to the desired point of impact, characterized in that the shoulder surface (13) belonging to the surface sleeve (9) is formed in one piece, most preferably in a ring (10), and is adapted to tether by means of a mechanical spring member (11). in relation to the surface sleeve (9) and that in a drilling situation the surface sleeve is adapted to be retracted towards the name of the drilling machine when the surface action acting on the surface sleeve and directed towards the percussion piston (1) has been removed.

Rock drilling machine according to claim 1, characterized in that the surface sleeve (9) is arranged to move in a cylinder space formed inside the frame (3), the surface sleeve (9) being constituted by a piston which by means of pressure medium is surface surface in said cylinder space.

Rock drilling machine according to claim 1, characterized! in that the floating sleeve (9) has a counter surface (14) directed towards the percussion piston (1), which is opposed to a surface in the frame (4) of the drilling machine, the interaction between these counter surfaces limiting the surface movement of the surface sleeve shoulder surface (13) by means of the spring action of the spring member (11) limits the displacement of the drill rod (2) from the percussion piston (1) when the drilling device is pulled out of the hole while impact pulses are still being produced.

Rock drilling machine according to claim 1, characterized in that the spring member (11) in the surface sleeve (9) consists of a plate spring.