US3523336A - Longitudinally adjustable drill boom - Google Patents

Longitudinally adjustable drill boom Download PDF

Info

Publication number
US3523336A
US3523336A US730717A US3523336DA US3523336A US 3523336 A US3523336 A US 3523336A US 730717 A US730717 A US 730717A US 3523336D A US3523336D A US 3523336DA US 3523336 A US3523336 A US 3523336A
Authority
US
United States
Prior art keywords
boom
drill boom
drill
extension member
guiding sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US730717A
Other languages
English (en)
Inventor
Erich Voldemar Kimber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atlas Copco AB filed Critical Atlas Copco AB
Application granted granted Critical
Publication of US3523336A publication Critical patent/US3523336A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/025—Rock drills, i.e. jumbo drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work

Definitions

  • a drill boom is longitudinally extensible and contractible by a power cylinder.
  • the drill boom extension mechanism includes a boom extension member longitudinally v
  • This invention relates to drill booms and more particularly to longitudinally adjustable drill booms adapted for positioning a drilling apparatus to different alternative drilling positions with respect to a work surface.
  • Drill booms are normally subjected to fluxural stress under the influence of their own weight and of feeding forces causing considerable deflection of the end of the boom vertically or in a transverse plane defined by the drilling direction.
  • a longitudinally adjustable drill boom adapted for positioning a rock drilling apparatus to different alternative drilling positions with respect to a work surface and comprising a boom support, a hollow drill boom swingably mounted at the inner end thereof on said boom support, a journal bearing at the outer end of said drill boom, an adjusting head having a boom extension member thereon received in said journal bearing for slidably supporting said adjusting head thereon, a drilling apparatus adjustably supported on said adjusting head, a power cylinder connected to said drill boom and to said adjusting head for adjusting the length of said drill boom between said adjusting head and said boom support, a guiding sleeve afiixed to the outer end of the drill boom and extending into the interior of the drill boom around said boom extension member, means for guiding the inner end portion of said boom extension member longitudinally slidably in said guiding sleeve, and said guiding sleeve having such clearance peripherally therearound in said drill boom as to avoid deformation of said guiding
  • FIG. 1 shows a diagrammatic side view of a drill boom together with a drilling apparatus carried thereby, an extended position of the drill boom being indicated by broken lines.
  • FIG. 2 shows an enlarged fragmentary vertical section through the inner end of drill boom in FIG. 1.
  • FIG. 3 is a cross section through the drill boom on the line 33 in FIG. 2.
  • FIG. 4 shows on the same scale as FIG. 2 a fragmentary vertical section through the outer end of the drill boom.
  • FIG. 5 is a cross section on the line 5-5 in FIG. 4.
  • FIG. 6 is a cross section on the line 66 in FIG. 4.
  • FIG. 7 finally shows a partly sectional side view of a guiding sleeve also shown in FIGS. 2 and 4 and intended for receiving therein the the boom extension member of the drill boom.
  • the drill boom 10 is supported at the inner end thereof vertically and laterally pivotally about suitable axles on a conventional boom support 12 which is affixed to an element 13 forming part of a drill wagon or rig, not shown.
  • the elevation and side swing angles of the drill boom are set by means of conventional hydraulic cylinders journalled on the boom support 12.
  • the drill boom 10 carries at the outer end thereof an adjusting head 14 for mechanized orientation of a drilling apparatus including a feed shell 16 provided with a rock drill 15 and a power feed thereon for the rock drill 15.
  • conventional hydraulic cylinders not shown in detail, on the adjusting head 14 for purposes of positioning said drilling apparatus.
  • the adjusting head 14 includes a fork 11 as a carrying member which is fixed by screws to a cylindrical hollow boom extension member 17.
  • the boom extension member 17 is slidably guided in a journal bearing 18 at the outer end of the drill boom 10.
  • the latter is made with a hollow straight jib portion 10 which is quadrangular in cross section and into the interior of which the boom extension member 17 projects.
  • the jib portion 10 is pivotally journalled on the boom support 12 by an angular arm 10 extending upwardly and angularly outwardly from the upper side side of the jib portion 10
  • Between the folk 11 and an outer flange on the boom extension member 17 is bolted an intermediate piece 19 extending into the boom extension member 17 from the forward end thereof.
  • the intermediate piece 19 carries journalling lugs 20 at the inner end thereof.
  • a pivot 21 is carried by the journalling lugs 20 which pivot 21 at the middle portion thereof is provided with a ring 22 having a spherical bearing surface, FIG. 5.
  • the jib portion 10 of the drill boom 10 carries flanges 23 at the outer end thereof and flanges 24 at the inner end thereof.
  • the journal bearing 18 is supported by an outer portion of a tubular guiding sleeve 25 which by means of a flange 32 is affixed to the flanges 23 together with a cover ring 26 slidably surrounding the boom extension member 17 and a centering ring 27.
  • the guiding sleeve 25 extends far into the interior of the jib portion 10 and has a considerable radial spacing or clearance 43 peripherally therearound with respect to the inner walls of the jib portion 10
  • the guiding sleeve 25 is provided with a pair of diametrically arranged guideways or guiding grooves 28 which extend along the major portion of the length thereof.
  • a pair of guides or wedges 29 which are inserted in recesses 30 at the inner end of the boom extension member 17 and bolted to the latter.
  • openings 31, FIG. 7, for inserting the wedges 29 during assembly In connection with the grooves 28 in the guiding sleeve 25 there are arranged openings 31, FIG. 7, for inserting the wedges 29 during assembly.
  • the wedges 29 are surrounding by slide plates 45 of bronze filling the radial play between the guiding sleeve 25 and the boom extension member 17 and providing a journal for the inner end of the latter whereby said inner end is supported longitudinally slidably in the drill boom.
  • the inner end of the journal bearing 18 is supported by a peripheral support member 32 which is fixed to the inside of the jib portion 10 at some distance from the flange 32, FIG. 4.
  • a bracket or a cover 33 which carries inner journalling lugs 34.
  • the piston 36 is included in a preferably bydraulically actuated power cylinder 37.
  • the operating conduits 39, 40 of the power cylinder 37 are led through the cover 33 to the piston rod 36.
  • the piston rod 36 is made hollow and carries centrally therein an inner tube 38.
  • the conduits 39, 40 communicate respectively via the piston rod 36 and via the inner tube 38 with the opposite ends of a piston 44 slidably and sealingly guided in the cylinder 37.
  • the working chambers of the cylinder 37 can alternately be pressurized so that the cylinder 37 is displaced within the jib portion 10 in a direction away from or towards the pivot 35.
  • the outer end of the cylinder 37 carries a lug 41 thereon in which is inserted a spherically recessed bearing ring 42, FIG. 5, cooperating with the spherical ring 22 on the pivot 21.
  • Displacement of the cylinder 37 outwardly or inwardly in the jib portion :10 is transmitted via the pivot 21 to the intermediate piece 19 and the adjusting head 14 so that the boom extension member 17 is caused to slide outwardly or inwardly in the journal bearing 18 for example from the position shown by full lines in FIG. 1 to the position 14 -16 depicted by broken lines therein or to some position therebetween.
  • Rotation of the boom extension member 17 is prevented by the guides or wedges 229 sliding in the grooves 28 whereby the latter provide guideways for the wedges 29.
  • the boom extension member 17 is always rigidly supported in the journal bearing 18 and by the sliding plates 45.
  • the drill boom 10 is deflected. Since the guiding sleeve 25 takes part in the angular movement caused by the deflection at the outer end of the drill boom 10 and since the clearance 43 will be chosen so large that the inner portion of the guiding sleeve 25 during normal deflection will not be deformed by contacting theinner walls of the jib portion 10 FIG. 2, permanent deform tion and sticking of the elements within the drill boom is avoided. Simultaneously there is received a lightweight and simple boom design which makes possible the use of a power cylinder 37 of standard make and is suitable for providing the basic unit of a boom component system which may be combined in a rational way for providing various functions.
  • the spherical ring connection 22, 42 on the pivot 21, FIG. 5, as well as the pivot 21 make possible limited pivotal movement in two planes perpendicular to one another.
  • This permits limited universal angular movability in any direction between the intermediate piece 19 and adjusting head 14 on the one hand and the power cylinder 37 on the other. Thanks to this the cylinder 37 can freely adapt itself to deflections of the outer end of the drill boom 10.
  • a longitudinally adjustable drill boom adapted for positioning a rock drilling apparatus to different alternative drilling positions with respect to a work surface and comprising a boom support, a hollow drill boom swingably mounted at the inner end thereof on said boom support, a journal bearing at the outer end of said drill boom, an adjusting head having a boom extension member thereon received in said journal bearing for slidably supporting said adjusting head thereon, a drilling apparatus adjustably supported on said adjusting head, a power cylinder connected to said drill boom and to said adjusting head for adjusting the length of said drill boom between said adjusting head and said boom support, a guiding sleeve aflixed to the outer end of the drill boom and extending into the interior of the drill boom around said boom extension member, means for guiding the inner end portion of said boom extension member longitudinally slidably in said guiding sleeve, and said guiding sleeve having such clearance peripherally therearound in said drill boom as to avoid deformation of said guiding sleeve against interior parts of said drill boom during normal
  • a drill boom according to claim 1 in which there are provided longitudinal guideways on said guide sleeve, and cooperating guides at the inner end of said boom extension member in axially slidable engagement with said guideways for guiding said boom extension member nonrotatably during longitudinal sliding movement thereof in said guiding sleeve.
  • a drill boom according to claim 1 in which said drill boom has flange means at the outer end thereof and said journal bearing is made as an elongated tubular member in one piece with said guiding sleeve and is afiixed to said flange means.
  • a drill boom according to claim 1 in which said boom extension member is hollow and said power cylinder is mounted in said boom extension member with one end thereof connected to said adjusting head and the other to said drill boom.
  • connection between said one end of said power cylinder and said adjusting head includes pivot means in two planes perpendicular to one another for permitting universal angular adaptability between said power cylinder and said head.
  • a drill boom according to claim 1 in which said drill boom is provided with inner and outer flanges respectively at the inner and outer end thereof, a through cavity in said drill boom between said flanges, said journal bearing and guiding sleeve being made in one piece as an elongated tubular member aflixed to said outer flanges and extending into said cavity, a bracket connected to the inner flanges of said drill boom, and said power cylinder being mounted within said boom extension member with one end thereof connected to said boom extension member and adjusting head and the other to said bracket.
  • an extensible and contractible drill boom an elongated hollow jib portion having flanges at the opposed ends thereof and a through cavity straightly therebetween, a tubular elongated guiding sleeve extending into said jib portion and being connected to the flanges at one end of said jib portion, a bracket connected to the flanges at the other end of said jibportion, a journal bearing in said guiding sleeve at the end thereof connected to said jib portion, an elongated hollow boom extension member longitudinally slidably guided in said guide sleeve as well as in said journal bearing, a power cylinder in said boom extension member connected therebetween said bracket for longitudinal adjustment of said boom extension member relative to said jib portion, and said guiding sleeve having such clearance peripherally therearound in said jib portion as to avoid deformation of said guiding sleeve against interior parts of said jib portion during normal deflection of the latter.
  • connection between said power cylinder and said boom extension member including pivot means in two planes perpendicular to one another for permitting universal angular adaptability between said power cylinder and said boom extension member.

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)
US730717A 1967-05-24 1968-05-21 Longitudinally adjustable drill boom Expired - Lifetime US3523336A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7262/67A SE303115B (es) 1967-05-24 1967-05-24

Publications (1)

Publication Number Publication Date
US3523336A true US3523336A (en) 1970-08-11

Family

ID=20270889

Family Applications (1)

Application Number Title Priority Date Filing Date
US730717A Expired - Lifetime US3523336A (en) 1967-05-24 1968-05-21 Longitudinally adjustable drill boom

Country Status (9)

Country Link
US (1) US3523336A (es)
AT (1) AT280190B (es)
CH (1) CH474661A (es)
DE (1) DE1758374B1 (es)
ES (1) ES354295A1 (es)
FR (1) FR1578993A (es)
GB (1) GB1164403A (es)
NO (1) NO118367B (es)
SE (1) SE303115B (es)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923276A (en) * 1973-07-03 1975-12-02 Atlas Copco Ab Longitudinally adjustable drill boom
US3980142A (en) * 1975-09-10 1976-09-14 Grigoriev Vladimir Konstantino Drilling boom
US4232848A (en) * 1978-04-11 1980-11-11 Atlas Copco Aktiebolag Drill boom arrangement
WO1995018913A1 (en) * 1994-01-05 1995-07-13 Tamrock Oy Feed-extension cylinder arrangement in a feed beam for a rock drill
US5695082A (en) * 1996-04-08 1997-12-09 Pioneer Engineering Crane having a readily removable outer boom section
US9612011B2 (en) 2012-08-30 2017-04-04 Honda Motor Co., Ltd. Preheat burner assembly and method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE529341C2 (sv) * 2005-11-25 2007-07-10 Atlas Copco Rock Drills Ab Lagring vid bom för uppbäring av bergborrutrustning
SE541217C2 (en) 2017-09-08 2019-05-07 Epiroc Rock Drills Ab Mining or construction vehicle
SE542480C2 (en) 2017-09-08 2020-05-19 Epiroc Rock Drills Ab Mining or construction vehicle enclosing a conduit arrangement
CN108838959A (zh) * 2018-06-28 2018-11-20 芜湖新尚捷智能信息科技有限公司 一种设备工装台及其使用方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212604A (en) * 1962-04-09 1965-10-19 Eaton Metal Products Company Extensible derrick
US3260374A (en) * 1964-06-29 1966-07-12 Haganes Martin Crane boom constructions
US3354967A (en) * 1965-10-23 1967-11-28 Skendrovic Lawrence Mobile furnace delining machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212604A (en) * 1962-04-09 1965-10-19 Eaton Metal Products Company Extensible derrick
US3260374A (en) * 1964-06-29 1966-07-12 Haganes Martin Crane boom constructions
US3354967A (en) * 1965-10-23 1967-11-28 Skendrovic Lawrence Mobile furnace delining machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923276A (en) * 1973-07-03 1975-12-02 Atlas Copco Ab Longitudinally adjustable drill boom
US3980142A (en) * 1975-09-10 1976-09-14 Grigoriev Vladimir Konstantino Drilling boom
US4232848A (en) * 1978-04-11 1980-11-11 Atlas Copco Aktiebolag Drill boom arrangement
WO1995018913A1 (en) * 1994-01-05 1995-07-13 Tamrock Oy Feed-extension cylinder arrangement in a feed beam for a rock drill
US5695082A (en) * 1996-04-08 1997-12-09 Pioneer Engineering Crane having a readily removable outer boom section
US9612011B2 (en) 2012-08-30 2017-04-04 Honda Motor Co., Ltd. Preheat burner assembly and method

Also Published As

Publication number Publication date
ES354295A1 (es) 1969-11-01
AT280190B (de) 1970-04-10
DE1758374B1 (de) 1970-06-18
NO118367B (es) 1969-12-22
CH474661A (de) 1969-06-30
FR1578993A (es) 1969-08-22
SE303115B (es) 1968-08-19
GB1164403A (en) 1969-09-17

Similar Documents

Publication Publication Date Title
US3523336A (en) Longitudinally adjustable drill boom
US4421173A (en) Motion compensator with improved position indicator
JPH02296988A (ja) 自動推進式衝撃掘削機
US3585806A (en) Apparatus for controlling pipeline laying operations
AU2005248093B2 (en) Telescopic feed beam for rock drill
US4088289A (en) Mast support arrangement for portable drill rig
AU2016200988B2 (en) A mining boom and method of supporting hoses
NO146373B (no) Styreinnretning for en borstreng ved undervannsboring
GB2032494A (en) Drilling Arrangement for Earth Drilling
USRE29565E (en) Drill string heave compensator and latching apparatus
FI64927B (fi) Hydrauliskt manoevrerad kran
CA2225050C (en) Arrangement for a telescope feeder of a rock-drilling machine
NO157494B (no) Innretning for lasting og fortoeyning av et skip, saerlig et tankskip til et offshore taarn.
US4207805A (en) Feed beam
US3476193A (en) Drill boom with parallel motion linkage means
EP0694115B1 (en) Drilling arrangement and drilling feed mechanism
US3923276A (en) Longitudinally adjustable drill boom
US2265987A (en) Drilling mechanism
US11685637B2 (en) Crane system for a cantilever
CA1056808A (en) Thrust and tension measuring device for use with flexible tubing injectors on drilling rigs
US3209842A (en) Apparatus for rotating a shaft with fluid pressure cylinders
US3467201A (en) Drill boom with rotary adjusting head
SU751334A3 (ru) Устройство дл управлени скольз щей струговой установкой в вертикальной плоскости
US4105189A (en) Line diverting tool
US2422210A (en) Leveling device for cable-tool drills