EP1344894A1 - Tete de coupe et excavatrice de roche - Google Patents

Tete de coupe et excavatrice de roche Download PDF

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Publication number
EP1344894A1
EP1344894A1 EP01271488A EP01271488A EP1344894A1 EP 1344894 A1 EP1344894 A1 EP 1344894A1 EP 01271488 A EP01271488 A EP 01271488A EP 01271488 A EP01271488 A EP 01271488A EP 1344894 A1 EP1344894 A1 EP 1344894A1
Authority
EP
European Patent Office
Prior art keywords
cutter head
cutter
disk roller
rock
base
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.)
Withdrawn
Application number
EP01271488A
Other languages
German (de)
English (en)
Inventor
Kazuyoshi c/o OISHI INT. SYSCOM CO. LTD. OISHI
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.)
OISHI INTERNATIONAL SYSCOM Co Ltd
Original Assignee
OISHI INTERNATIONAL SYSCOM Co Ltd
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 OISHI INTERNATIONAL SYSCOM Co Ltd filed Critical OISHI INTERNATIONAL SYSCOM Co Ltd
Publication of EP1344894A1 publication Critical patent/EP1344894A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
    • E21D9/1013—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/16—Machines slitting solely by one or more rotating saws, cutting discs, or wheels
    • E21C25/18—Saws; Discs; Wheels

Definitions

  • the present invention relates to a cutter head and a rock excavator provided therewith suitable for excavating base rocks in free section to proceed excavating a mine gallery, a tunnel, a shaft and the like.
  • a rock excavator 201 on which is mounted the aforesaid cutter head having the bits arranged, excavates by rotating a cutter head 202 while pressing it against the base rock and crushing the base rock against the compression strength of rocks by the bits.
  • the compression strength of the rocks increases, it is difficult to excavate the base rock and the bits are severely worn out, resulting in uneconomical.
  • Rock excavators 301 and 401 on which is mounted the aforesaid cutter head having the roller cutters arranged, excavates by rotating cutter heads 302 and 402 while pressing them against the base rocks and crushing the base rocks against the compression strength of rocks by a disk roller cutter, a button roller cutter or the like as shown in FIGS. 20 and 21, or excavates by cutting off, or so-called "undercutting," the base rocks against the tensile strength of rocks by a disk roller cutter as shown in FIGS. 22 and 23.
  • the roller cutter is less worn out to make it possible to carry out a large amount of cutting, and the base rocks in which the compression strength of rocks is great can be excavated.
  • the base rock is hard to be cut in deeply, so that leftover L is apt to occur in a curve-like fashion along the force-exerting line.
  • the disk roller cutter successively in contact with the base rock cannot cut into the base rock sufficiently so that the disk roller cutter floats from the base rock along the leftover-curve L, or the base rock is scrubbed by the disk roller cutter to produce dust.
  • portions except an edge of the disk roller cutter of the cutter head 402 come in contact with the base rock to impair cutting of the disk roller cutter into the base rock, and sometimes, the whole cutter head 402 receives reaction from the base rock to be pushed back, and greatly vibrates to make the cut-off difficult.
  • a cutter head according to the present invention is characterized in structure that two kinds of disk roller cutters having different cutting lines with a direction of a support shaft and a position of a disk edge differentiated are arranged on a cutter head drum, and one is a disk roller cutter for undercut to cut off the base rock, whereas the other is a disk roller cutter for scraper to crush the base rock.
  • the two kinds of disk roller cutters are arranged in many rows front and rear, and in the vertical direction, in order to make the cut-in depth of the base rock large, and in order that a plurality of disk roller cutters are placed in contact with rocks to effectively cut into the base rock and cut the leftover
  • the disk roller cutter may include a both-side-type disk roller cutter having disks disposed on both sides so as not to occupy space in the arrangement of the disk roller cutter.
  • a button roller cutter a rotating-type round pick, a fixed bit or a buried-type tip for cutting may be mounted in place of the disk roller cutter for scraper. There may be equipped with a mucking vane in order to efficiently remove the muck.
  • a rock excavator according to the present invention is characterized in structure that the cutter head constituted as described above is mounted on an excavating boom.
  • a shaft of the cutter head constituted as described above is mounted nearly parallel to a shaft of an excavating boom.
  • a road-header-type rock excavator wherein a shaft of the cutter head constituted as described above is mounted nearly vertical to a shaft of an excavating boom.
  • a shovel-type rock excavator wherein the cutter head constituted as mentioned above is mounted as an attachment.
  • a surface-miner-type rock excavator wherein the cutter head constituted as mentioned above is mounted.
  • FIG. 1 is a side sectional view of a squeezer head according to the present invention
  • FIG. 2 is a front view thereof
  • FIG. 3 is an explanatory view showing a positional relation of each disk roller cutter in a state that the cutter head is rotated.
  • two kinds of disk roller cutters having different cutting lines with a direction of a support shaft and a position of a disk edge differentiated are arranged on a cutter head drum.
  • a cutter head 1 As shown in FIGS. 1 and 2, two kinds of disk roller cutters 3, 4 are arranged at predetermined spaces in a circumferential direction on a cutter head drum 2 mounted on a excavating boom through a drive shaft, and the same kind of disk roller cutters 3, 3, 3 and 4, 4, 4 are also arranged at predetermined spaces in a circumferential direction.
  • Two kinds of the disk roller cutters 3, 4 are arranged with a direction of the support shaft and a position of the disk edge differentiated, and one is a disk roller cutter for undercut and the other is a disk roller cutter for scraper corresponding to a moving direction of the cutter head 1, that is, a main cutting direction.
  • the support shafts of the disk roller cutters 3, 4 are that one is nearly parallel to a rotating shaft of the cutter head 1 and the other is nearly vertical thereto.
  • Angles ⁇ 3 and ⁇ 4 formed between the support shafts of the disk roller cutters 3, 4 and the rotating shaft of the cutter head 1 can be suitably set so that the circular plane portion of the disk roller cutter is hard to come in contact with the rock, and a cutting angle of the disk roller cutter into the base rock is selected adjusting to properties of the base rock or the pressure of the head against the base rock.
  • the disk roller cutter 3 works as a disk roller cutter for undercut
  • the disk roller cutter 4 works as a disk roller cutter for scraper
  • X3 is a main base-rock cutting-line
  • X4 is a scraper cutting-line.
  • the disk roller cutter 4 works as a disk roller cutter for undercut
  • the disk roller cutter 3 works as a disk roller cutter for scraper
  • Y4 is a main base-rock cutting-line
  • Y3 is a scraper cutting-line.
  • a positional relation in all directions of the edges of the disk roller cutters 3, 4 or the spacing of the cutting lines X3/X4, Y3/Y4 can be suitably set in consideration of the properties of base rocks, the rotational frequency of the cutter head 1, the turning speed of a excavating boom, and angles ⁇ 3, ⁇ 4 formed between the support shafts of the disk roller cutters 3, 4 and the rotating shaft of the cutter head 1.
  • FIG. 4 is an explanatory view showing the function of a disk roller cutter for undercut and a disk roller cutter for scraper.
  • a disk roller cutter 3A for undercut first cuts in a free section 5 formed in the base rock I to cut it along a main base-rock-cutting-line X3, but the free section 5 traces a crushing curve 7 which starts from the vicinity of a cutter edge.
  • a succeeding disk roller cutter for scraper is at a position of 4A0 in the X direction.
  • a succeeding disk roller cutter 3B for undercut deeply cuts in the free section 8 similar to the preceding disk roller cutter 3A for undercut to cut it along a main base-rock cutting-line X3.
  • the base rock I is cut by disk roller cutters for scraper 4B, 4C, 4D, ... and disk roller cutters for undercut 3C, 3D,
  • FIG. 5 is an explanatory view showing one example where the disk roller cutters for undercut and the disk roller cutters for scraper are arranged in many stages so that a deep cut-in in the base rock I can be formed.
  • the disk roller cutters for undercut 3, 13 cut the base rock along the main base-rock-cutting-lines X3, X13, while forming two stages of the free sections 5, 15 in the base rock I.
  • the disk roller cutters for scraper 4, 14 crush the base rock I along the scraper-cutting-lines X4, X14 to form free sections having a shape similar to the original free sections 5, 15.
  • FIG. 6 is an explanatory view showing the case that, where there is no free section in a cutting face of the base rock I, the disk roller cutters for undercut and the disk roller cutters for scraper are arranged in many stages, and the cutter head is thrust in the base rock I to cut it.
  • the boom is extended or the rock excavator is moved in the direction of the base rock I first, and a cutter head 21 is pressed against the base rock to rotate. Then, the boom is turned in the X direction, and the cutter head 21 is encroached into the base rock I to cut it.
  • a disk roller cutter for undercut 23 arranged on the front side in the cutting direction cuts the base rock I along the main base-rock-cutting-line X23, and a disk roller cutter for scraper 24 crushes the base rock I along the scraper-cutting-line X24 to cut off a front cutting-face of base rock 25.
  • a disk roller cutter for undercut 33 arranged at the rear in the cutting direction cuts the base rock I along the main base-rock-cutting-line X33, and a disk roller cutter for scraper 34 crushes the base rock I along the scraper-cutting-line X34 to cut off a rock portion sandwiched between the scraper-cutting-lines X24 and X33.
  • a disk roller cutter 340 cuts the base rock I along the cutting-line X340.
  • the disk roller cutters 23, 24 and 33, 34 cut while tracing a cutting track of a plurality of modification of cubic cycloid curves at the predetermined spaces on the base rock I, in contact with rocks according to the rotational frequency of the cutter head 21, the turning speed of the boom and the pressing degree.
  • FIG. 8 is an explanatory view showing the case where two cutter heads 51, 52 are mounted so that their rotating shafts are nearly vertical to the axis of the excavating boom, and the cutter heads 51, 52 are thrust into the base rock I to cut it.
  • Disk roller cutters 56, 57 and 58, 59 on the excavating-boom side of the cutter heads 51, 52 perform the function similar to the function mentioned previously.
  • FIG. 9 shows one embodiment of a cutter head 61 having a cutter head nearly parallel to the cutting face of the base rock arranged for cutting.
  • the cutter head 61 moves in the Y direction or in the direction opposite thereto while rotating to cut the base rock I.
  • G1, G2 and G3 denote disk roller cutters for undercut on the front row in the cutting direction arranged nearly at the same position with respect to the rotating shaft of the cutter head 61; and N1, N2 and N3 denote succeeding disk roller cutters for scraper arranged nearly at the same position with respect to the rotating shaft of the cutter head 61.
  • R1, R2 and R3 denote disk roller cutters for undercut on the rear row in the cutting direction arranged nearly at the same position with respect to the rotating shaft of the cutter head 61; and S1, S2 and S3 denote succeeding disk roller cutters for scraper arranged nearly at the same position with respect to the rotating shaft of the cutter head 61.
  • the function of these disk roller cutters is as mentioned previously.
  • FIG. 10 shows another embodiment of a cutter head 71 having a cutter head arranged nearly parallel to the cutting face of the base rock to cut.
  • the cutter head 71 also, moves in the Y direction or in the direction opposite thereto while rotating to cut the base rock I.
  • G1, G2 and G3 denote disk roller cutters for undercut on the front row in the cutting direction arranged nearly at the same position with respect to the rotating shaft of the cutter head 71; and N1, N2 and N3 denote succeeding disk roller cutters for scraper arranged nearly at the same position with respect to the rotating shaft of the cutter head 71.
  • E1, E2, and up to E9 denote disk roller cutters for scraper arranged while being deviated in order in the radial direction and in the rotating shaft direction of the cutter head 71. The function of these disk roller cutters is also as mentioned previously.
  • P denotes a disk roller cutter for undercut positioned away from the base rock more than G1, G2 and G3 from the base rock I, and on the rear row with respect to the base rock in which where G1, G2 and G3 produce leftover, the leftover are cut off so that plate surfaces of N1, N2 and N3 do not come in contact of the leftover to the utmost.
  • E1+5 and E2+6 denote a both-side type disk roller cutter, employing a cutter arrangement not occupying space. Others are a one-side type disk roller cutter.
  • FIG. 11 shows one embodiment of a cutter head 81 having a cutter head arranged nearly vertical to the cutting face of the base rock to cut.
  • the cutter head 81 moves in the X direction while rotating to cut the base rock I.
  • GV1, GV2 and GV3 denote disk roller cutters for undercut on the front row in the cutting direction arranged nearly at the same position with respect to the rotating shaft of the cutter head 81; and PD1, PD2 and PD3 denote succeeding disk roller cutters for scraper arranged nearly at the same position with respect to the rotating shaft of the cutter head 81.
  • GN1, GN2 and GN3 denote disk roller cutters for undercut on the rear row in the cutting direction arranged nearly at the same position with respect to the rotating shaft of the cutter head 81; and PD4, PD5 and PD6 denote succeeding disk roller cutters for scraper arranged nearly at the same position with respect to the rotating shaft of the cutter head 81.
  • the function of these disk roller cutters is also as mentioned previously.
  • PD1+4, PD2+5 and PD3+6 denote a both-side type disk roller cutter, employing a cutter arrangement without occupying space. Others are a one-side type disk roller cutter.
  • FIG. 12 shows another embodiment of a cutter head 91 having a cutter head arranged nearly vertical to the cutting face of the base rock.
  • the cutter head 91 also, moves in the X direction while rotating to cut the base rock I.
  • many disk roller cutters are arranged in a multi-stage in the front cutting-direction, which arrangement is realized using a both-side type disk roller cutter without occupying space.
  • FIG. 13 shows a rock excavator of a road-header type having the cutter head shown in FIG. 9 mounted thereon.
  • a base 103 is disposed above a crawler 102, and an excavating boom 104 is disposed before the base 103.
  • the excavating boom 104 is expanded forward and backward by an expanding cylinder 105, swung vertically by a swinging cylinder 106 and is also turned to left and right.
  • the cutter head is mounted on the extreme end of the excavating boom 104, so that the cutter head can be rotated about the rotating axis by a drive mechanism (not shown) in both normal and reverse directions, with the desired rotational frequency and rotational torque.
  • the excavating boom 104 is expanded forward and backward, and swung up and down to press the cutter head in the diametrical direction against the cutting face of the base rock; and the excavating boom 104 is turned to left and right to press the cutter head in the direction of the rotating shaft against the cutting face of the base rock, the disk roller cutter of the cutter head comes in contact with the base rock to cut.
  • FIG. 15 shows a rock excavator 114 of a road header type in which the cutter head shown in FIG. 11 is mounted.
  • FIG. 17 shows a rock excavator 121 of a shovel type in which the cutter head shown in FIG. 9 is mounted as an attachment.
  • the cutter head of FIG. 11 may be mounted in place of the cutter head shown in FIG. 9.
  • FIG. 18 shows a rock excavator 131 of a surface-miner type in which the cutter head shown in FIG. 9 is mounted.
  • the base rock can be excavated easily even if the compression strength of the rocks is great, the wear of the roller cutter is relatively small, the roller cutter does not float from the base rock, the base rock is not scrubbed to produce muck, the cutting of the roller cutter into the rock is not impaired, and the whole cutter head is not pushed back from the base rock.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)
EP01271488A 2000-12-19 2001-12-17 Tete de coupe et excavatrice de roche Withdrawn EP1344894A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000385172A JP2002188394A (ja) 2000-12-19 2000-12-19 カッタヘッド及び岩盤掘削機
JP2000385172 2000-12-19
PCT/JP2001/011043 WO2002050401A1 (fr) 2000-12-19 2001-12-17 Tete de coupe et excavatrice de roche

Publications (1)

Publication Number Publication Date
EP1344894A1 true EP1344894A1 (fr) 2003-09-17

Family

ID=18852486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01271488A Withdrawn EP1344894A1 (fr) 2000-12-19 2001-12-17 Tete de coupe et excavatrice de roche

Country Status (5)

Country Link
US (1) US20030230925A1 (fr)
EP (1) EP1344894A1 (fr)
JP (1) JP2002188394A (fr)
AU (1) AU2002222662A1 (fr)
WO (1) WO2002050401A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009100469A1 (fr) * 2008-02-15 2009-08-20 Sandvik Mining And Construction G.M.B.H. Machine de creusement pourvue d'une tête de forage composée d'outils à disques
US8690262B2 (en) 2008-02-15 2014-04-08 Sandvik Mining And Construction G.M.B.H. Heading machine having cutting unit made of disc tools
CN107208479A (zh) * 2015-02-13 2017-09-26 卡特彼勒环球矿业欧洲有限公司 铣削装置

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004019311A (ja) * 2002-06-18 2004-01-22 Oishi International Sisukomu Kk ディスクビット、カッタヘッド及びカッタドラム
AU2007359121B2 (en) * 2007-09-18 2015-05-07 Caterpillar Global Mining Europe Gmbh Roller drill or roller bit
CN106795758B (zh) * 2014-10-06 2020-03-31 山特维克知识产权股份有限公司 切削设备
CN105019911B (zh) * 2015-07-14 2017-03-22 广东华隧建设股份有限公司 一种盾构机刮刀
CN108699905B (zh) 2016-02-24 2021-01-01 山特维克知识产权股份有限公司 一种采矿机及用于采矿机的网处理装置
WO2018086694A1 (fr) * 2016-11-10 2018-05-17 Sandvik Intellectual Property Ab Unité de coupe à rouleaux pour machine à entailler
EP3392450B1 (fr) * 2017-04-18 2022-10-19 Sandvik Intellectual Property AB Appareil de découpage
FI3392455T3 (fi) 2017-04-18 2023-10-17 Sandvik Intellectual Property Leikkauslaite
SE542339C2 (en) 2017-04-24 2020-04-14 Sandvik Intellectual Property Cutter, cutting unit, cutting head & cutting apparatus for creating tunnels
CN116556977B (zh) * 2023-06-29 2023-09-15 河南金品建筑工程有限公司 一种建筑施工用旋挖设备

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009100469A1 (fr) * 2008-02-15 2009-08-20 Sandvik Mining And Construction G.M.B.H. Machine de creusement pourvue d'une tête de forage composée d'outils à disques
US8690262B2 (en) 2008-02-15 2014-04-08 Sandvik Mining And Construction G.M.B.H. Heading machine having cutting unit made of disc tools
DE112009000325B4 (de) * 2008-02-15 2015-01-08 Sandvik Mining And Construction G.M.B.H. Vortriebsmaschine mit Bohrkopf aus Diskenwerkzeugen
CN101946061B (zh) * 2008-02-15 2015-11-25 桑德威克采矿和建筑有限责任公司 具有由盘形工具构成的钻头的掘进机
CN107208479A (zh) * 2015-02-13 2017-09-26 卡特彼勒环球矿业欧洲有限公司 铣削装置

Also Published As

Publication number Publication date
JP2002188394A (ja) 2002-07-05
WO2002050401A1 (fr) 2002-06-27
US20030230925A1 (en) 2003-12-18
AU2002222662A1 (en) 2002-07-01

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