NO810715L

NO810715L - TUNNEL BUILDING MOUNTAINS.

Info

Publication number: NO810715L
Application number: NO810715A
Authority: NO
Inventors: Lorne Robert Herron
Original assignee: Atlas Copco Ab
Priority date: 1980-03-11
Filing date: 1981-03-03
Publication date: 1981-09-14
Also published as: SE8001884L; JPS56142995A; EP0035982A1; FI810753L; FI810753A7

Description

Ved hjelp av oppfinnelsen oppnås en fjellborerigg hvormed større tunnelarealer kan bores i forhold til tidligere kjente rigger av sammenlignbar størrelse og kostnad. With the help of the invention, a rock drilling rig is obtained with which larger tunnel areas can be drilled compared to previously known rigs of comparable size and cost.

Oppfinnelsen beskrives i henhold til tegningen hvor figurThe invention is described according to the drawing in which figure

1 er et sideriss av fjellboringsriggen i følge oppfinnelsen, figur 2 er et grunnriss av riggen slik den er vist på figur' I7 figur 3 er et frontriss tilsvarende pilene 3 - 3 på figur 1, mens to bommer med boremaskiner som er vist på figur 1 og 2 1 is a side view of the rock drilling rig according to the invention, figure 2 is a ground plan of the rig as shown in figure' I7 figure 3 is a front view corresponding to arrows 3 - 3 in figure 1, while two booms with drilling machines shown in figure 1 and 2

ikke er vist på figur 3, figur 4 viser et snitt langs linjen 4 - 4 på figur 1, figur 5 viser et snitt langs linjen 5-5 is not shown in Figure 3, Figure 4 shows a section along the line 4 - 4 in Figure 1, Figure 5 shows a section along the line 5-5

på figur 4 og figur 6 viser et alternativt sentralt feste for en borebom på en fjellborerigg. in Figure 4 and Figure 6 shows an alternative central attachment for a drilling boom on a rock drilling rig.

Figur 1-3 viser en borerigg for tunnelbygging. Den omfatter et chassie 11 på hjul 12. Chassiet 11 bærer et manøver-bord 13, en konsoll 14 og to fjernbare motvekter 15, 16. To støtter 17, 18 er fastskrudde på konsollen 14 og omfatter akseltapper 19, 20 hvortil to stive festeplater 21, 22 er montert. Akseltappenes 19, 20 geometriske aksler 23, 24 er horisontale Figure 1-3 shows a drilling rig for tunnel construction. It comprises a chassis 11 on wheels 12. The chassis 11 carries a maneuver table 13, a console 14 and two removable counterweights 15, 16. Two supports 17, 18 are screwed to the console 14 and comprise axle studs 19, 20 to which two rigid attachment plates 21 , 22 is mounted. The geometric axes 23, 24 of the axle pins 19, 20 are horizontal

og strekker seg i chassiets 11 lengderetning, d.v.s. i lengderetning av den tunnel som skal inndrives. To dobbeltvirkende hydrauliske sylindere 25, 26 er innkoblet for å svinge festeplatene 21, 22 omkring akslene 23, 24. and extends in the chassis' 11 longitudinal direction, i.e. in the longitudinal direction of the tunnel to be recovered. Two double-acting hydraulic cylinders 25, 26 are connected to swing the attachment plates 21, 22 about the shafts 23, 24.

To borebommer 27, 28 er montert på festeplatene 21, 22.Two drilling booms 27, 28 are mounted on the attachment plates 21, 22.

De omfatter bomfester 29, 30. Hver av disse bomfester 29, 30 omfatter et hus 31 i hvilket en stiv sirkelformet skive 32 er roterbar oppstøttet ved sin periferi av 4 støtter 23 - 36, They comprise boom mounts 29, 30. Each of these boom mounts 29, 30 comprises a housing 31 in which a rigid circular disk 32 is rotatably supported at its periphery by 4 supports 23 - 36,

slik det fremgår av figur 4. Skiven 32 kan monteres i begge retninger ved hjelp av en dobbeltvirkende hydraulisk sylinder 37 og en hydraulisk styrt gripeenhet 38 og den kan videre låses i valgfri stilling ved hjelp av klembolter 73 som bæres av støttene 33 - 36. Klemboltene 73 er belastet av fjærer 74 (figur 5) for å klemme skiven 32 aksialt mot støttene 33 - 36 as shown in figure 4. The disc 32 can be mounted in both directions using a double-acting hydraulic cylinder 37 and a hydraulically controlled gripping unit 38 and it can also be locked in any position using clamping bolts 73 which are carried by the supports 33 - 36. The clamping bolts 73 is loaded by springs 74 (figure 5) to clamp the disk 32 axially against the supports 33 - 36

og de frigjøres hydraulisk. Gripeenheten 38 omfatter fire hydraulisk aktiverte gripestempler 75 som griper når de ut-settes for hydraulisk trykk. Klemboltene 73, gripestemplene 75 and they are released hydraulically. The gripping unit 38 comprises four hydraulically activated gripping pistons 75 which grip when exposed to hydraulic pressure. The clamping bolts 73, the gripper pistons 75

og de hydrauliske sylindere 37 er parallellkoblet til en felles styreventil slik det beskrives i det europeiske utleggingsskrift nr. 0 003 006. Skiven 32 har to par ører 39, 40 på hvilke to bommer 41, 42 er svingbart montert for å svinge omkring akseltapper som danner geometriske aksler 43, 44 som igjen er vinkelrett anordnet mot skivenes 32 rotasjonsaksler 45, 46. Skivenes 32 rotasjonsaksler 45, 46, d.v.s. skivenes senteraksler, er anordnet vinkelrett mot akseltrappenes 19, 20 aksler 23, 24.-Bommene 41, 42 er svingbare omkring akslene 43, 44 ved hjelp and the hydraulic cylinders 37 are connected in parallel to a common control valve as described in the European specification document no. 0 003 006. The disc 32 has two pairs of ears 39, 40 on which two booms 41, 42 are pivotably mounted to pivot around axle studs which form geometric axes 43, 44 which are in turn arranged perpendicular to the discs 32 rotation axes 45, 46. The discs 32 rotation axes 45, 46, i.e. the center shafts of the disks are arranged perpendicular to the shafts 23, 24 of the shaft steps 19, 20. The booms 41, 42 are pivotable around the shafts 43, 44 using

av hydrauliske sylindere 47, 48 som er innkoblet mellom ørene 49, 50 på skivene 32 og støttene 51, 52 på bommene 41, 42. of hydraulic cylinders 47, 48 which are connected between the ears 49, 50 of the discs 32 and the supports 51, 52 of the booms 41, 42.

Matebjelker 53, 54 for fjellboremaskiner 55, 56, (eksempelvis hydrauliske slagboremaskiner), er aksialt glidbart montert i holdere 76, 77 og holderne 76, 77 er svingbart montert på akseltapper 57, 58 på bommenes 41, 42 ytre ender. Holderne 76, 77 og dermed matebjelkene 53, 54 er svingbare omkring akseltappene 57, 58 ved hjelp av hydrauliske sylindere 59, 60 som er koblet til akseltappene 57, 58. Matetappene 53, 54 er aksialt glidbart montert i holderne 76,77. Matebjelkene 53, Feed beams 53, 54 for rock drilling machines 55, 56, (for example hydraulic impact drilling machines), are axially slidably mounted in holders 76, 77 and the holders 76, 77 are pivotably mounted on axle pins 57, 58 on the outer ends of the booms 41, 42. The holders 76, 77 and thus the feed beams 53, 54 are pivotable around the shaft pins 57, 58 by means of hydraulic cylinders 59, 60 which are connected to the shaft pins 57, 58. The feed pins 53, 54 are axially slidably mounted in the holders 76, 77. Matebjelken 53,

og holderne 76, 77 er ikke vist i detalj, men det henvises til det tyske patentskrift DE-OS 28 20325 som beskriver matebjelkene i detalj. and the holders 76, 77 are not shown in detail, but reference is made to the German patent document DE-OS 28 20325 which describes the feeding beams in detail.

Bunter 70, 71 med hydrauliske slanger for matebjelkeneBundles 70, 71 with hydraulic hoses for the feed beams

53, 54 og for boremaskinene 55, 56, strekker seg fra kraft-kildene 15/16 gjennom hull 72 i skivene 32. 53, 54 and for the drilling machines 55, 56, extend from the power sources 15/16 through holes 72 in the discs 32.

I figur 3 vises riggen uten borebommer. Et mulig tunnel-profil er indikert med linjen 61 og det størst mulige areal som kan bores med den stiplede linje 62. Figure 3 shows the rig without drilling booms. A possible tunnel profile is indicated with the line 61 and the largest possible area that can be drilled with the dashed line 62.

For å bore i en stuff begynner operatøren å innstille festeplatene 21,22 i deres viste vertikale stilling og borer de fleste hull uten å svinge festeplatene. I stedet svinger han bommene 40, 41 omkring akslene 43, 44 og roterer skivene 32 omkring akslene 45, 56. Deretter roterer han skiven 32 til dennes aksler 43, 44 er horisontale og fortsetter ved å forflytte festeplatene 21,22 omkring akslene 23, 24 i stedet for å rotere skiven 32 for å bore konturhullene. Skivenes 32 aksler 45, 46 og de sirkellinjer disse aksler 45, 46 beveger seg omkring, To drill into a stock, the operator begins by setting the attachment plates 21,22 in their shown vertical position and drills most holes without swinging the attachment plates. Instead, he swings the booms 40, 41 around the axes 43, 44 and rotates the discs 32 around the axes 45, 56. He then rotates the disc 32 until its axes 43, 44 are horizontal and continues by moving the attachment plates 21, 22 around the axes 23, 24 instead of rotating the disc 32 to drill the contour holes. The shafts 45, 46 of the disks 32 and the circular lines around which these shafts 45, 46 move,

er indikert på figur. 3.is indicated in the figure. 3.

Festeplatene 21, 22 svinges 110° ved hjelp avThe fastening plates 21, 22 are swung 110° by means of

de hydrauliske sylindere 25, 26. Slik man kan se på figur 3, kan festeplatene 21, 22 svinges i stilling hvor de strekker seg skrått nedad og utad. De kan også svinges forbi sine vertikale stillinger slik at de er rettet noe innover mot hverandre for å redusere riggens bredde under transport. the hydraulic cylinders 25, 26. As can be seen in Figure 3, the attachment plates 21, 22 can be swung into a position where they extend obliquely downwards and outwards. They can also be swung past their vertical positions so that they are directed slightly inwards towards each other to reduce the width of the rig during transport.

Ved enbomsrigger ønsker man å ha bommen sentralt plassert på riggen. En slik sentral montering av en festeplate 21 for en bom, er vist på figur 6. Denne festeplate 21 er svingbar mer enn 45 grader ut til begge sider fra sin vertikale opprettstående mellomstilling, slik det fremgår av figuren. Detaljer på figur 6 som tilsvarer detaljer i de foregående figurer, har fått samme henvisningsbetegnelser som i disse. With single-boom rigs, you want to have the boom centrally located on the rig. Such a central mounting of an attachment plate 21 for a boom is shown in figure 6. This attachment plate 21 can be pivoted more than 45 degrees out to both sides from its vertical upright intermediate position, as is evident from the figure. Details in figure 6 which correspond to details in the preceding figures have been given the same reference designations as in these.

Claims

1. Rock drilling rig for tunnel construction with a chassis. (11), a bracket (21, 22) mounted on the chassis to be pivotable about a first axle (23, 24) extending in the longitudinal direction of the chassis, a boom (41, 42) being pivotably mounted on the bracket (21, 22) to be pivotable about a second axle (43, 44) which is substantially perpendicular to the first... axle (23, 24), a maté beam (53,54) for a rock drilling machine (55,56) is pivotably mounted on the boom's (41, 42) outer end and arranged to be able to drill holes in the longitudinal direction of the chassis, characterized in that the boom (41, 42) is mounted to be pivotable around said second axle (43, 44), so that it can be pivoted to an obliquely outward position in relation to the first axle (23, 24).

2. Rig according to claim 1, characterized in that the attachment (21) on which the boom (41) is mounted is pivotable in both directions from an upright position where the inner end of the boom is located vertically above said first axle (23).

3. Rig according to claim 1 with two booms (41, 42) each of which is mounted on the fasteners (21, 22) as stated in claim 1, characterized in that the two fasteners (21, 22) are mounted on each side of a central longitudinal vertical plane through the rig and are pivotable from each other from an upright position where the inner ends of the booms are located vertically .opposite said first axles (23, 24) ..

4. Rock drilling rig for tunnel construction, with a chassis (11), a bracket (21, 22) mounted on the chassis to be pivotable about a first axle (23, 24) extending in the longitudinal direction of the chassis, a boom (41, 4.2) which is pivotably mounted on the bracket (21, 22) to be pivotable about a second shaft (43, 44) which is substantially perpendicular to said first shaft (23, 24), a maté beam (53, 54) for a rock drilling machine (55, 56)' which is pivotably mounted on the boom's ( 41, 42) outer end and arranged to enable drilling of holes in the longitudinal direction of the chassis,'. characterized in that the boom (41, 42) is pivotably mounted on an intermediate piece (32) to be pivotable around said second axle (43, 44), and that the intermediate piece (32) is rotatably mounted in the attachment (21, 22) for to be rotatable around a third axis (45, 46) which is substantially parallel to said first axis (23, 24).

5. Rig according to claim 4, characterized in that the attachment (21,22)_ on which the boom is mounted, is pivotable in both directions from an upright position where said third axle (45,

46) lies above the first mentioned shaft (23, 34) in a vertical plane through the said first shaft.

6. Rig according to claim 5, with two booms (41, 42) which are each mounted on the fasteners (21, 22) as described in claim 1, characterized in that the two fasteners (21, 22) are mounted on each side of a central longitudinal vertical plane through the rig and pivotable outwards from each other from an upright position where the inner ends of the booms are located vertically above said first axles (23, 24) in a vertical plane through said first axle.

7. Rig according to claims 4-6, characterized in that the intermediate piece (32) comprises a rotatable circular rigid disk (32) which is supported or guided at or near its periphery.

8. Rig according to claim 7, characterized in that the disc (32) has an opening. (72) through which feed lines for the feed beam (53, 54) and the drilling machine (55, 56) extend.