US20100270849A1 - Heading machine - Google Patents

Heading machine Download PDF

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Publication number
US20100270849A1
US20100270849A1 US12/734,618 US73461808A US2010270849A1 US 20100270849 A1 US20100270849 A1 US 20100270849A1 US 73461808 A US73461808 A US 73461808A US 2010270849 A1 US2010270849 A1 US 2010270849A1
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US
United States
Prior art keywords
cutting
heading machine
machine according
heads
profile
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.)
Abandoned
Application number
US12/734,618
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English (en)
Inventor
Bernhard Ebner
Peter Kogler
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.)
Sandvik Mining and Construction GmbH
Original Assignee
Sandvik Mining and Construction GmbH
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
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Application filed by Sandvik Mining and Construction GmbH filed Critical Sandvik Mining and Construction GmbH
Assigned to SANDVIK MINING AND CONSTUCTION G.M.B.H. reassignment SANDVIK MINING AND CONSTUCTION G.M.B.H. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EBNER, BERNHARD, KOGLER, PETER
Publication of US20100270849A1 publication Critical patent/US20100270849A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/22—Mineral freed by means not involving slitting by rotary drills with breaking-down means, e.g. wedge-shaped drills, i.e. the rotary axis of the tool carrier being substantially perpendicular to the working face, e.g. MARIETTA-type

Definitions

  • the present invention relates to a heading machine including a travelling mechanism and a cutting boom or frame, wherein the cutting boom or frame carries at least two rotating cutting heads whose axes of rotation extend in the heading direction or enclose acute angles with the heading direction and which, together, define a cutting profile having a profile width, as well as two cutting rollers arranged substantially parallel and behind the cutting heads and capable of being positioned on the floor and on the roof, respectively.
  • Heading machines with cutting rotors whose axes of rotation extend in the heading direction or enclose acute angles with the heading direction are usually denoted as “Marietta drills”, wherein the cutting unit comprises two or several rotating cutting heads.
  • the two cutting heads define a cutting profile with a maximum profile width, wherein the cutting tools are usually arranged on the cutting heads in a manner that cutting tools of one of the cutting heads engage between cutting tools of the other one of the cutting heads during rotation such that the circular areas of the respective cutting profiles will overlap one another.
  • the common cutting profile of the two or more cutting heads arranged adjacently and, preferably, on the same level will, therefore, as a rule, correspond to the respective number of partially overlapping circular areas, with so-called profile gussets remaining between the individual circular areas in the region of the floor and the roof.
  • the edge of the profile is limited by two half-circles.
  • a trimming device for a Marietta drill has become known, in which a telescopable cutting roller is arranged on the cutting frame of the heading machine in a vertically adjustable manner for trimming the floor. On the roof, the cut gusset is trimmed by a cutting roller immovably fixed to the cutting frame.
  • the trimming device known from U.S. Pat. No. 5,921,632 is connected with a central drive via gear shafts.
  • the present invention aims to provide a heading machine which enables the driving or forming of a substantially rectangular tunnel profile, while avoiding the above-described drawbacks.
  • both cutting rollers comprise end portions which are extendible to the width of the profile for the formation of a substantially rectangular cutting profile. Due to the fact that both the upper cutting roll, i.e. the one to be positioned on the roof, and the lower cutting roll, i.e. the one to be positioned on the floor, comprise extendible end portions, it has become feasible to enlarge the effective cutting width of the cutting rollers to the profile width defined by the other cutting tools, namely the rotating cutting heads. This enables the cut gussets remaining between the individual circular areas of the cutting heads to be substantially completely cut away such that a substantially rectangular cutting profile will be obtained. It is, furthermore, feasible to cut away the quarter-circularly-shaped, round profile corners by the aid of the cutting rollers extended to the full profile width, so that a rectangular overall profile will indeed be achieved.
  • the provision of extendible end portions of the cutting rollers enables the end portions to be retracted again so as to reduce the width of the cutting rollers and facilitate the maneuvering of the heading machine when moving in the road.
  • the cutting rollers each have a diameter corresponding to at least one fifth, preferably at least one fourth, of the cutting diameter of the cutting heads. Accordingly large diameters of the cutting rollers will enable an especially good approximation to the intended rectangular profile shape.
  • the cutting heads are provided with cutting tools which are adjustable or extendible in the radial direction. This will enable the adjustment of the size of the circular profile driven by the individual, rotating cutting heads.
  • Another advantage of this configuration resides in that the cutting tools, for instance, for an enhanced maneuverability of the heading machine, can be displaced radially inwards during the back-travel from the driven tunnel in order to thereby reduce the required space and, hence, the risk of collisions with the tunnel walls or the like.
  • each cutting roller is separately hinged to the cutting boom or frame in a height-adjustable manner.
  • the actuation of the individual cutting units usually is effected via a central drive and appropriate gears.
  • a central drive in the heading machine according to the invention, can, for instance, be used to drive the at least two rotating cutting heads.
  • the two cutting rollers are each driven separately, the cutting rollers each comprising an individual drive. This enables a better mutual tuning of the energy expenditure for the individual cutting tools than would be the case with a central drive including driving shafts.
  • Central drives in particular, involve the problem that, if one of the cutting units driven by the central drive spins because of a defect or other unforeseeable circumstances, the driving force will automatically be distributed to the remaining drive units, which are frequently not dimensioned for such elevated driving forces and, thus, may become damaged. In the event of individual drives for the cutting units and, in particular, for the two cutting rollers, such problems will not occur, since the drive can each be separately controlled.
  • a configuration is, more-over, preferred, in which the cutting tools are arranged on the cutting heads in a manner that cutting tools of one of the cutting heads engage between cutting tools of the other one of the cutting heads during rotation such that the circular areas of the respective cutting profiles overlap one another.
  • the cut gussets remaining between the mutually overlapping circular-area-profiles will be accordingly smaller so as to facilitate the trimming procedure.
  • FIG. 1 is a side view of the heading machine according to the invention.
  • FIG. 2 is a top view on the heading machine according to the invention.
  • FIG. 3 is a front view of the heading machine
  • FIG. 4 depicts a cutting profile as is obtainable by a heading machine known from the prior art, including a trimming chain;
  • FIG. 5 depicts a cutting profile to be achieved by the heading machine according to the invention.
  • a heading machine is denoted by 1 and comprises a travelling mechanism 2 .
  • the travelling mechanism in this case is configured as a crawler mechanism.
  • cutting bodies 5 are mounted, which are rotationally driven about an axis of rotation 6 .
  • a cutting roll 8 to be positioned on the roof 7
  • a cutting roll 10 to be positioned on the floor 9 .
  • the cutting rolls 8 and 10 are fixed to a pivot arm 11 or 12 , respectively, which is pivotable relative to the cutting boom 3 about an axis 13 or 14 , respectively.
  • Hydraulic cylinders 15 and 16 serve as pivot drives.
  • Each of the two cutting rolls 8 and 10 is associated with an individual drive 17 or 18 , respectively.
  • FIG. 1 further depicts a hauling means 19 , which extends in the longitudinal direction of the machine as far as to beyond the end of the heading machine 1 and comprises a pivotable delivery portion. Also illustrated is a support frame 22 which is coupled to the machine frame by the aid of a hydraulic cylinder 21 and capable of being trailed, and which carries anchor boring and setting devices 23 as well as respective supporting devices 24 .
  • the cutting roller 8 comprises a central roller portion 27 as well as two extendible end portions 25 .
  • the end portions 25 are extendible in the sense of double arrows 26 for the adjustment of the cutting width of the cutting roller 8 .
  • the rotational drive for the cutting roller 8 is again denoted by 17 , wherein the central portion 27 of the cutting roller 8 is driven by a gear not illustrated in detail, and the extendible end portions 25 are connected with the central portion 27 by the aid of a positive connection in a manner secured against rotation, yet displaceable in the direction of the axis of rotation of the cutting roller 8 .
  • the adjustment device for the vertical readjustment of the cutting boom 3 is denoted by 38 .
  • the two cutting heads 5 each comprise a plurality of cutting tools and, in particular, cutting knives 28 , which are adjustable in the radial direction in the sense of double arrows 29 in order to change the size of the respective circular profile to be achieved.
  • the two cutting heads 5 are preferably driven in mutually opposite directions, with the individual cutting tools 29 accordingly engaging in each other during rotation so as to produce the overlaps of the individual circular profiles illustrated in FIG. 5 .
  • the two cutting rollers 8 and 10 each carry a plurality of cutting tools such as, for instance, cutter bits 30 , both on the central roller portion 27 and on the extendible end portions 25 .
  • the end portions 25 are extendible in the sense of double arrows 26 in a manner that a substantially rectangular profile will be driven.
  • FIGS. 4 and 5 depict cutting profiles to be obtained according to the prior art and by the present invention, respectively.
  • Parallel cuts 31 and 32 are each illustrated, the heading machine initially making a cut 31 and, subsequently, a cut 32 parallel to the former.
  • the two profiles cut by the rotating cutting heads are denoted by 33 , the profile gusset 35 being cut away by a trimming device in the form of a trim chain 34 .
  • a rectangular cutting profile is, however, not achievable by a heading machine of this type. This is why a region overlapping with the cut 31 has to be covered by the subsequent cut 32 so as to achieve an altogether reduced overall profile width.
  • FIG. 5 depicts the overall profile to be achieved by the heading machine according to the invention.
  • the circular profiles to be achieved by the two cutting heads 5 are again denoted by 33 , defining a profile width a.
  • the remaining profile gussets 35 as well as the likewise remaining round corners 36 in this case are cut away by the aid of the cutting rollers 8 and 10 , whose widths correspond to the profile width a on account of the extended end portions 25 , and whose profiles are denoted by 37 .
  • the subsequent cut 32 can, therefore, immediately follow the first cut 31 so as increase the extraction efficiency.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Road Repair (AREA)
  • Control Of Cutting Processes (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
US12/734,618 2007-11-15 2008-11-05 Heading machine Abandoned US20100270849A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0186107A AT506122B1 (de) 2007-11-15 2007-11-15 Vortriebsmaschine
ATA1861/2007 2007-11-15
PCT/AT2008/000400 WO2009062218A1 (de) 2007-11-15 2008-11-05 Vortriebsmaschine

Publications (1)

Publication Number Publication Date
US20100270849A1 true US20100270849A1 (en) 2010-10-28

Family

ID=40386066

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/734,618 Abandoned US20100270849A1 (en) 2007-11-15 2008-11-05 Heading machine

Country Status (7)

Country Link
US (1) US20100270849A1 (de)
CN (1) CN101910557B (de)
AT (1) AT506122B1 (de)
CA (1) CA2705843C (de)
DE (1) DE112008003071A5 (de)
RU (1) RU2449123C2 (de)
WO (1) WO2009062218A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120247836A1 (en) * 2009-12-15 2012-10-04 Wilson Henry E Mining machine with booms providing enhanced rib access
CN105386759A (zh) * 2015-10-21 2016-03-09 常俊苹 一种双滚筒式煤矿掘进机
WO2019149354A1 (en) * 2018-01-31 2019-08-08 Sandvik Mining And Construction G.M.B.H. Heading machine with cusp cutter
EP3688284B1 (de) * 2017-09-29 2021-08-18 Sandvik Intellectual Property AB Schneidtrommel für bohr-abbaumaschine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104179503B (zh) * 2014-08-13 2016-05-04 陈菊芳 双速矿用钻头
RU2627348C1 (ru) * 2016-09-16 2017-08-07 Акционерное Общество "Копейский Машиностроительный Завод" Горный комбайн

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770448A (en) * 1955-02-14 1956-11-13 Goodman Mfg Co Extensible rotary cutter bar for boring type miner
US2959405A (en) * 1958-05-19 1960-11-08 Union Carbide Corp Strata mining-adjacent seam hardness indicator
US3343882A (en) * 1965-07-22 1967-09-26 Westinghouse Air Brake Co Boring type continuous mining machine having rotary boring arms moving into nested relation during certain cycles of rotation of the boring arms
US3407006A (en) * 1966-05-02 1968-10-22 Westinghouse Air Brake Co Boring type continuous mining machine with contour cutters
US3844618A (en) * 1972-04-14 1974-10-29 Lee Norse Co Mining machine having rotary motor extended cutter head
US4316635A (en) * 1980-05-27 1982-02-23 National Mine Service Company Extensible and retraciable rotor arm cutting assembly
US5921632A (en) * 1997-07-02 1999-07-13 Eimco Coal Machinery Incorporated Method and apparatus for extending the cutter drum of a boring machine
US6206478B1 (en) * 1998-05-22 2001-03-27 Ishikawajima-Harima Heavy Industries Co., Ltd. Tunnel excavator with crawler drive and roof support bearing frames
US6305754B1 (en) * 1998-05-29 2001-10-23 Ishikawajima-Harima Heavy Industries Co., Ltd. Tunnel excavator with S-shaped soil plate
US20050248209A1 (en) * 2004-05-10 2005-11-10 Voest-Alpine Bergtechnik Gesellschaft M.B.H. Hewing or cutting roll

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734731A (en) * 1956-02-14 Mining machine
SU427147A1 (ru) * 1970-12-07 1974-05-05 ГОРНЫЙ КОМБАЙНI Ni'S.^iUi.
SU440486A1 (ru) * 1972-06-26 1974-08-25 Предприятие П/Я А-3400 Проходческий комбайн
GB8712282D0 (en) * 1987-05-23 1987-07-01 Anderson Strathclyde Plc Circular heading machine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770448A (en) * 1955-02-14 1956-11-13 Goodman Mfg Co Extensible rotary cutter bar for boring type miner
US2959405A (en) * 1958-05-19 1960-11-08 Union Carbide Corp Strata mining-adjacent seam hardness indicator
US3343882A (en) * 1965-07-22 1967-09-26 Westinghouse Air Brake Co Boring type continuous mining machine having rotary boring arms moving into nested relation during certain cycles of rotation of the boring arms
US3407006A (en) * 1966-05-02 1968-10-22 Westinghouse Air Brake Co Boring type continuous mining machine with contour cutters
US3844618A (en) * 1972-04-14 1974-10-29 Lee Norse Co Mining machine having rotary motor extended cutter head
US4316635A (en) * 1980-05-27 1982-02-23 National Mine Service Company Extensible and retraciable rotor arm cutting assembly
US5921632A (en) * 1997-07-02 1999-07-13 Eimco Coal Machinery Incorporated Method and apparatus for extending the cutter drum of a boring machine
US6206478B1 (en) * 1998-05-22 2001-03-27 Ishikawajima-Harima Heavy Industries Co., Ltd. Tunnel excavator with crawler drive and roof support bearing frames
US6305754B1 (en) * 1998-05-29 2001-10-23 Ishikawajima-Harima Heavy Industries Co., Ltd. Tunnel excavator with S-shaped soil plate
US20050248209A1 (en) * 2004-05-10 2005-11-10 Voest-Alpine Bergtechnik Gesellschaft M.B.H. Hewing or cutting roll

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120247836A1 (en) * 2009-12-15 2012-10-04 Wilson Henry E Mining machine with booms providing enhanced rib access
CN105386759A (zh) * 2015-10-21 2016-03-09 常俊苹 一种双滚筒式煤矿掘进机
EP3688284B1 (de) * 2017-09-29 2021-08-18 Sandvik Intellectual Property AB Schneidtrommel für bohr-abbaumaschine
WO2019149354A1 (en) * 2018-01-31 2019-08-08 Sandvik Mining And Construction G.M.B.H. Heading machine with cusp cutter
CN111684143A (zh) * 2018-01-31 2020-09-18 山特维克矿山工程机械有限公司 带有尖角切削器的掘进联合机
RU2768356C2 (ru) * 2018-01-31 2022-03-23 Сандвик Майнинг Энд Констракшн Г.М.Б.Х. Проходческий комбайн со средством для срезания выступов
US11299987B2 (en) * 2018-01-31 2022-04-12 Sandvik Mining And Construction G.M.B.H. Heading machine with cusp cutter

Also Published As

Publication number Publication date
AT506122B1 (de) 2011-05-15
CA2705843A1 (en) 2009-05-22
RU2010123899A (ru) 2011-12-27
RU2449123C2 (ru) 2012-04-27
AT506122A1 (de) 2009-06-15
CN101910557B (zh) 2013-05-22
CN101910557A (zh) 2010-12-08
WO2009062218A1 (de) 2009-05-22
DE112008003071A5 (de) 2010-10-07
CA2705843C (en) 2015-04-14

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SANDVIK MINING AND CONSTUCTION G.M.B.H., AUSTRIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:EBNER, BERNHARD;KOGLER, PETER;REEL/FRAME:024392/0679

Effective date: 20100428

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION