US3563321A - Drill boom structure - Google Patents

Drill boom structure Download PDF

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Publication number
US3563321A
US3563321A US805638A US3563321DA US3563321A US 3563321 A US3563321 A US 3563321A US 805638 A US805638 A US 805638A US 3563321D A US3563321D A US 3563321DA US 3563321 A US3563321 A US 3563321A
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US
United States
Prior art keywords
boom
swinging
axis
head
carrier
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
US805638A
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English (en)
Inventor
Pieter Barendsen
Carl Olov Lindgren
Erich Voldemar Kimber
Karl Erik Qvarnstrom
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Atlas Copco AB
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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
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Publication of US3563321A publication Critical patent/US3563321A/en
Anticipated expiration legal-status Critical
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    • 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
    • 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
    • E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation

Definitions

  • This invention relates to swingably mounted drill boom structures of the type provided with a boom head for positioning a carrier of a feed bar for a rock drill into various angular positions with respect to a working surface.
  • Such drill booms mounted onamobile substructure are usually used for drilling parallel holes in a working surface such a: tin end wall of a tunnel.
  • a working surface such as a: tin end wall of a tunnel.
  • the boom itself will be an obstacle to positioning the feed bar to some positions. That is to say, there will be a blind area" injthe working surface. If the feed bar is displaceable with respect to the boom, this blind area is lessened or completely avoided.
  • a drill boom structure comprising a boom arranged-at one end for lateral and vertical swinging on a substructure, a boom head at the opposite end of said boom arranged on said boom for motor actuated swinging about a first axis, a carrier pivotably mounted on said boom head for swinging about a second axis perpendicular to said first axis, and-afeed bar for guiding a rock drill in a feeding direction mounted on said carrier, said carrier comprising a motor actuated hinge means for swinging said feed bar about a thirdaxis, which is perpendicular to said second axes and parallel with said feeding direction.
  • FIG. 1 is a horizontal view, partly in section, of the outer part of a drill boom structure according to the invention
  • FIG. 2 is a section of line 2-2 in FIG. 1
  • FIG. 3 is an end view on line 3-3 in FIG. 1
  • FIG. 4 is a section of a hydraulic lock, which in FIG. 1 is shown applied to the boom structure
  • FIGS. 5 and 6 are vertical views of two modified drill boom struc tures according to the invention
  • FIG. 7 is an end view on line 7-7 in FIG. 6
  • FIG. 8 is an end view of a modified form of the boom structure shown in FIGS. 6 and 7
  • FIG. 9 is a horizontal view of the boom structure in FIG. 8.
  • FIGS. corresponding details are given the same reference numeral.
  • FIGS. 1-3 there is shown the outer end of a boom 10, which is laterally and vertically swingable by means of suitable hydraulic cylinders, which are not shown.
  • the boom head 11 is tiltable on a horizontal pivot 15 by means of a rod 17 in a way as will be described with reference to FIG. 5.
  • the feed bar carrier 12 pivots on a pivot 16 by means of a hydraulic swing cylinder 19.
  • the rock drill 14 is slidably mounted on the feed bar 13 and fed by a chain feed means 20 (FIG. 2) in a well known manner.
  • the feed bar itself is axially slidably mounted on a plate 22 which is made rigid by means of side plates 21.
  • a feed bar mover in the form of a hydraulic cylinder 23 provides the axial movement of the feed bar.
  • the plate 22, which is a part of the carrier 12, is affixed to an end part or journal member 24, which embraces one end of a casing 25 for a turning means or motor means and is rotatably journaled on the casing 25.
  • the cylinder 19 for swinging the carrier 12 on the boom head 11 is connected to a support 31 screwed to the casing 25, which by means of lugs 27 is mounted on the vertical pivot 16.
  • the plate 22 is fixed also to the upper half of an axially divided sleeve or journal member 26, which is journaled on the casing 25 and axially fixed by a stop lug 28 and a flange 29 on the easing 25.
  • the casing 25 and the journal members 24, 26 thus provide a hinge means for swinging a part 24, 26, 21, 22 of the carrier with respect to another part 25, 31 of the carrier.
  • the feed bar 13 is shown turned into two alternative positions.
  • FIG. 1 there is generated torque by a drive screw 32 which by helical splines is in engagement with corresponding splines in a turning nut 33.
  • the drive screw 32 forms a piston rod of a piston 34, which is slidably and sealingly guided in a cylinder sleeve 35.
  • the cylinder sleeve 35 is affixed by screws to a cylindrical base head 36 into which the piston 34 projects slidingly but nonrotatably with a piston rod 37 provided with straight splines cooperating with corresponding splines in the head 36.
  • the head 36 is screwed to the end flange 29 of the casing 25 and is closed by a cover 38.
  • the cylinder sleeve 35 fixedly carries a bearing member 40 in which a driving member 41 is rotatably journaled.
  • the driving member is carried by a radial ball bearing 42 and is fixed axially at a central flange 43 between two axial ball bearings 44.
  • the bearing member 40 and its bearings 42, 44 are covered by a cover 45 screwed to the bearing member 40 and sealed by suitable rings with respect to the rotatable driving member 41.
  • a hollow member 46 of the driving member which projects into the drive end of the cylinder sleeve 35 the driving member 41 carries the turning nut 33.
  • a splined end 47 of the driving member 41 protruding from the cover 45 mates with splines in the end part 24 for rotating the latter.
  • a pressure fluid conduit 48 by means of which pressure fluid can be supplied via suitable interior channels and openings in the bearing member 40 to the drive end of the cylinder sleeve 35 and to the interior of the hollow member 46 via bores in the driving member 41.
  • pressure fluid can be supplied via suitable interior channels in the base head 36 to the base end of the cylinder sleeve 35 and the interior of the head 36.
  • conduits 48, 49 are connected to a hydraulic lock means which by means of conduits 48", 49" is connected in a conventional manner to a source of hydraulic pressure, not shown, via a control valve preferably of four way type and likewise not shown which closes the conduits 48", 49 or opens one of them optionally to high pressure and the other for return flow.
  • reaction torque caused by the torque generated between the drive screw 32 and the turning nut 33 is transmitted via the splines of the piston rod 37 to the base head 36 and thereby to the casing 25 and the boom head 11.
  • pressure fluid is supplied to the conduit 48 the drive end of the cylinder sleeve 35 and the interior of the hollow member 46 of the driving member 41 are pressurized. This causes return of the piston 34with its drive screw 32 and piston rod 37 simultaneously with pressure fluid being expelled from the base end of the cylinder sleeve 35 and the interior of the base head 36 via the conduit 49'.
  • a hydraulic lock means 50 working on spring loaded check valves 51, 52, FIG. 4.
  • the check valves 51, 52 take up closed position and prevent return flow from the conduits 48', 4 9 when low pressure is maintained in the conduits 48", 49"and the control valve, not shown, is in neutral position.
  • the piston 34 will be retained rigidly and hydraulically arrested in any adjusted position between one end position in which it abuts against the base head 36 and the other end position in which it abuts against the hollow member 46.
  • FIG. 5 there is shown a boom structure having a boom of the type shown in FIG. 1.
  • the feed bar carrier, the turning means and other details are principally as described with reference to FIG. I, but the boom head I1 is modified so that the feed bar carrier 12 is arranged vertically off set the boom 10 instead of laterally off set.
  • the feed bar carrier 12 may be swung on the pivot 16. Normally, this pivot is vertical but it may be tilted together with the boom head II on the horizontal-pivot 15 by lengthening or shortening the rod 17 by means of a hydraulic cylinder 18 integral with the rod 17.
  • the boom is universally swingable on suitable pivots by means of cylinders 56, 57.
  • Reference numeral 58 refers to a substructure or boom support. During vertical swinging of the boom 10, the boom head 11 and thus the feed bar 13 will maintain its angular position byvirtue of the rod 17. Such a parallel movement can also be provided by virtue of hydraulic control means, e.g. as described in US. Pat. No. 2,613,822. v
  • FIG. 6 there is shown another design in which the boom 10 comprises a first boom portion 10 and a second boom portion I",
  • the second and forked boom portion is telescopically and extendably carried by the first boom portion.
  • a rod 17, as described, is therefore not suitable but the boom head is tiltable by means of a hydraulic cylinder 59.
  • the feed bar is mounted on two arms 60 on the journal members 24, 26.
  • the mounting of the carrier 12 on the boom head 11 compares favorable with the arrangements shown in the preceding figures by permitting the hinge means 24, 25, 26 to turn at least 270.
  • the feed bar is pivotally mounted on a transverse pivot, not shown, and at the arm of member 24 it is mounted by means of a hydraulic cylinder 61.
  • FIG. 89 there is shown a modified form of the drill boom in FIG. 67.
  • This hinge means is given reference numeral 62.
  • the arms carries a second hinge means 63 for turning the feed bar 13 with respect to the arms.
  • the feed bar may be mounted on the second hinge means by means of a hydraulic cylinder 61 as described with reference to FIGS. 67.
  • a drill boom structure comprising a boom arranged at one end for lateral and vertical swinging on a substructure, a boom head at the opposite end of said boom arranged on said boom for motor actuated swinging about a first axis, a carrier pivotably mounted on said boom head for swinging about a second axis perpendicular to said first axis, and a feed bar for guiding a rock drill in a feeding direction mounted on said carrier, said carrier comprising a motor actuated hinge means for swinging said feed bar about a third axis, which is perpendicular to said second axes and parallel with said feeding direction.
  • a drill boom structure accordmg to claim I III WhlCh a motor means for actuating said hinge means includes a pressure fluid actuated piston, which is sealingly guided for reciprocation in a cylinder and has piston rod means slidingly connected to a first member of the carrier by a splined connection and piston rod means slidingly connected to a second member of the carrier by a splined connection having screw splines, said first and second member of the carrier being rotatively journaled to each other for providing the hinge means.
  • a drill boom structure according to claim 2 in which said first part of the carrier comprises a cylindrical housing for the motor means mounted on said boom head and said second part of the carrier comprises a support rotatably journaled on said cylindrical housing, said support extendably carrying the fed bar.
  • a drill boom structure in which the boom comprises a first boom portion, which is mounted on the substructure, and a second boom portion, which is parallel with and extendably supported by said first boom portion and carries the boom head.
  • a rock drill boom structure comprising a boom havingone end universally pivotally connected to a mounting, a boom head pivotally mounted at the opposite end of the boom for swinging about a first axis,- a first member pivotally mounted on the boom head for swinging about a second axis, which is perpendicular to said first axis, a second member swingably carried by said first member for swinging about a third axis, which is perpendicular to said second axes, a feed bar for a rock drill which is extendably supported by said second member and has a longitudinal axis substantially parallel to said third axis, motor means for swinging the boom laterally and vertically relative to said mounting, a motor means for swinging the boom head about said first axis, a motor means for swinging said first member about said second axis, and a motor means for swinging said second member about said third axis.
  • a rock drill boom structure comprising a boom arranged at one end for lateral and vertical swinging on a substructure, a boom head at the opposite end of said boom arranged on said boom for motor actuated swinging about a first pivot providing means, a carrier pivotably mounted on said boom head for swinging about a second pivot providing means, which is perpendicular to said first pivot providing means, and a feed bar for guiding a rock drill mounted on said carrier, which comprises a first motor actuated hinge means arranged on said head and a second motor actuated hinge means swingably carried by said first hinge means and swingably carrying said feed bar, said first and second hinge means and the feed bar being substantially parallel to each other but perpendicular to said first and second pivot providing means.
  • a rock drill boom structure comprising a boom connected at one end to a substructure so as to be pivotal about a horizontal axis and about a vertical axis, motor means for swinging said boom about said horizontal axis, motor means for swinging said boom about said vertical axis, a boom head at the opposite end of the boom, a first hinge means arranged on said head, a second hinge means swingably carried by said first hinge means and arranged laterally thereof, and a feed bar for guiding a rock drill swingably carried by said second hinge means, the axes of the first and second hinge means and said feed bar being substantially parallel.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
US805638A 1968-03-12 1969-03-10 Drill boom structure Expired - Lifetime US3563321A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE6803236A SE321909C (enrdf_load_stackoverflow) 1968-03-12 1968-03-12

Publications (1)

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US3563321A true US3563321A (en) 1971-02-16

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ID=20261677

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US805638A Expired - Lifetime US3563321A (en) 1968-03-12 1969-03-10 Drill boom structure

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US (1) US3563321A (enrdf_load_stackoverflow)
AT (1) AT301475B (enrdf_load_stackoverflow)
CH (1) CH486631A (enrdf_load_stackoverflow)
DE (1) DE1911823C3 (enrdf_load_stackoverflow)
ES (1) ES364614A1 (enrdf_load_stackoverflow)
FI (2) FI65124B (enrdf_load_stackoverflow)
FR (1) FR2003741A1 (enrdf_load_stackoverflow)
GB (1) GB1262666A (enrdf_load_stackoverflow)
NO (1) NO125905B (enrdf_load_stackoverflow)
SE (1) SE321909C (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004838A3 (en) * 1978-04-11 1979-10-31 Atlas Copco Aktiebolag A drill boom arrangement
DE2912478A1 (de) * 1978-08-31 1980-03-13 Gardner Denver Co Stellmechanismus fuer gesteinsbohrmaschine
US4274329A (en) * 1978-11-13 1981-06-23 Weyer Paul P Rotary actuator apparatus
US4497378A (en) * 1982-02-02 1985-02-05 Eimco-Secoma Societe Anonyme Drilling and bolting turret
WO2007100287A1 (en) * 2006-02-28 2007-09-07 Atlas Copco Rock Drills Ab Method and device for automatic calibration of a rock drilling joint and rock drilling rig comprising such a device
US9995091B2 (en) * 2013-06-19 2018-06-12 Epiroc (Nanjing) Construction And Mining Equipment Co., Ltd. Rock drill telescopic arm and rock drill
CN114523577A (zh) * 2022-03-09 2022-05-24 利越集团有限公司 一种墙体钻孔设备

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0215998A3 (en) * 1985-09-25 1988-08-10 Lam Ming Luen A pile driver, pile drawer and/or drilling machine
GB8607997D0 (en) * 1986-04-02 1986-05-08 Boart Uk Ltd Drilling boom
CN101942963B (zh) * 2010-08-18 2013-09-25 山西东华机械有限公司 机载式液压钻机
CN102996063A (zh) * 2012-12-26 2013-03-27 张家口宣化华泰矿冶机械有限公司 矿山凿岩掘进用钻孔机构
SE542480C2 (en) 2017-09-08 2020-05-19 Epiroc Rock Drills Ab Mining or construction vehicle enclosing a conduit arrangement
SE541217C2 (en) 2017-09-08 2019-05-07 Epiroc Rock Drills Ab Mining or construction vehicle
CN109915016B (zh) * 2019-04-03 2024-03-08 中国铁建重工集团股份有限公司 凿岩台车和凿岩台车控制方法
CN111623210A (zh) * 2020-06-06 2020-09-04 台州市木落自动化科技有限公司 一种可旋转调节角度的凿岩机安装架

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3020012A (en) * 1959-02-27 1962-02-06 Chicago Pneumatic Tool Co Low overhead jumbo drill supporting bracket
US3226064A (en) * 1963-08-12 1965-12-28 Joy Mfg Co Adjustable mounting for rock drills
US3333646A (en) * 1964-11-18 1967-08-01 Kenneth H Hoen Mobile hammer unit and position control apparatus therefor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250388B (enrdf_load_stackoverflow) * 1967-09-21
US3237462A (en) * 1964-05-15 1966-03-01 Ingersoll Rand Co Rock drilling rig

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3020012A (en) * 1959-02-27 1962-02-06 Chicago Pneumatic Tool Co Low overhead jumbo drill supporting bracket
US3226064A (en) * 1963-08-12 1965-12-28 Joy Mfg Co Adjustable mounting for rock drills
US3333646A (en) * 1964-11-18 1967-08-01 Kenneth H Hoen Mobile hammer unit and position control apparatus therefor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004838A3 (en) * 1978-04-11 1979-10-31 Atlas Copco Aktiebolag A drill boom arrangement
DE2912478A1 (de) * 1978-08-31 1980-03-13 Gardner Denver Co Stellmechanismus fuer gesteinsbohrmaschine
US4290491A (en) * 1978-08-31 1981-09-22 Cooper Industries, Inc. Rock drill positioning mechanism
US4274329A (en) * 1978-11-13 1981-06-23 Weyer Paul P Rotary actuator apparatus
US4497378A (en) * 1982-02-02 1985-02-05 Eimco-Secoma Societe Anonyme Drilling and bolting turret
WO2007100287A1 (en) * 2006-02-28 2007-09-07 Atlas Copco Rock Drills Ab Method and device for automatic calibration of a rock drilling joint and rock drilling rig comprising such a device
US9995091B2 (en) * 2013-06-19 2018-06-12 Epiroc (Nanjing) Construction And Mining Equipment Co., Ltd. Rock drill telescopic arm and rock drill
CN114523577A (zh) * 2022-03-09 2022-05-24 利越集团有限公司 一种墙体钻孔设备
CN114523577B (zh) * 2022-03-09 2024-04-12 利越集团有限公司 一种墙体钻孔设备

Also Published As

Publication number Publication date
AT301475B (de) 1972-09-11
NO125905B (enrdf_load_stackoverflow) 1972-11-20
DE1911823A1 (de) 1972-02-24
CH486631A (de) 1970-02-28
SE321909B (enrdf_load_stackoverflow) 1970-03-23
FI793908A7 (fi) 1981-01-01
FI65124B (fi) 1983-11-30
DE1911823B2 (de) 1973-02-15
SE321909C (enrdf_load_stackoverflow) 1975-01-20
FR2003741A1 (enrdf_load_stackoverflow) 1969-11-14
GB1262666A (en) 1972-02-02
ES364614A1 (es) 1971-02-01
DE1911823C3 (de) 1973-09-13

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