EP1059417A2 - Ausgrabungsanlage - Google Patents

Ausgrabungsanlage Download PDF

Info

Publication number
EP1059417A2
EP1059417A2 EP20000111882 EP00111882A EP1059417A2 EP 1059417 A2 EP1059417 A2 EP 1059417A2 EP 20000111882 EP20000111882 EP 20000111882 EP 00111882 A EP00111882 A EP 00111882A EP 1059417 A2 EP1059417 A2 EP 1059417A2
Authority
EP
European Patent Office
Prior art keywords
rotor
core bit
rotation axis
mentioned above
type motor
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Withdrawn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
EP20000111882
Other languages
English (en)
French (fr)
Inventor
Shigeru Mazaki
Toshio Imaoka
Kusuo Sato
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.)
Mitsubishi Materials Corp
Nippon Diamond Co Ltd
Original Assignee
Mitsubishi Materials Corp
Nippon Diamond 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
Priority claimed from JP2000019181A external-priority patent/JP2001057757A/ja
Priority claimed from JP2000034198A external-priority patent/JP2001055884A/ja
Priority claimed from JP2000054814A external-priority patent/JP2001241284A/ja
Application filed by Mitsubishi Materials Corp, Nippon Diamond Co Ltd filed Critical Mitsubishi Materials Corp
Publication of EP1059417A2 publication Critical patent/EP1059417A2/de
Withdrawn legal-status Critical Current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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/24—Guiding or centralising devices for drilling rods or pipes

Definitions

  • This invention relates to the excavation equipment having cylindrical core bits for excavation of the work materials circularly.
  • the method for reinforcing the whole wall is known, i.e., boring a large hole on the wall at first, constructing an iron brace (reinforcing) in the opening space of the bored hole and consolidating with concrete said brace and an anchor which is constructed on the inner face of said hole.
  • the anchor is constructed by holding on the holes which are prepared at the inner circumference face of the opening space.
  • the hole to construct the anchor is made by the equipment which is comprising the core bit 80 having the cylindrical core bit 80a, which is made by a cylindrical component and diamonds or cemented carbides at the top end of said component, and the driving motor 81 which rotates the core bit around the axial line.
  • the cylindrical core 83 is made by rotating the bit 80a prepared on the top end of the core bite 80 with fitting on the concrete 82 which is the work material. Then, the core bit 80 is pulled out from the concrete 82 after breaking the root 83a of the remained core 83. Then, the hole for constructing the anchor having, for example, 20-35mm diameter and 200mm in depth is made.
  • the motor 81 since the motor 81 has gears to transmit the torque, there are such problems as the weight is heavy, the handling nature is difficult, and the noise is loud (90 dB or more). Moreover, even when it is at high speed, the rotational frequency is low such as about 1500 rpm, and even if the special motor, about 3000 to 3900 rpm is the maximum. Therefore, there is a problem that the excavation time attains a long time. In addition, in the case of an ultrasonic excavation equipment which excavates with ultrasonic wave, its noise is relatively low but excavation speed is low and there also is a problem that the working time becomes a long time.
  • the object of this invention is to offer an excavation equipment, which has high torque and rotational frequency to be able to excavation in short time, and can be easily exchanged the wasted core bit.
  • it also offers the equipment where it is difficult to fit the core to the inside of the core bit, and its noise generation is low.
  • the excavation equipment of this invention is the excavation equipment which has a cylindrical core bit for excavation of the work materials circularly and a hollow type motor rotating said core bit.
  • the hollow type motor mentioned above comprises,
  • the excavation equipment of this invention is the equipment which has a cylindrical core bit for excavation the work materials circularly and a hollow type motor rotating said core bit.
  • the hollow type motor mentioned above comprises,
  • the hollow type motor of this invention is the motor which comprises,
  • the hollow type motor in this invention has the rotor formed as a hollow type and the cylindrical stator prepared at the periphery side of said rotor.
  • a boring tool is fixed at the one end of the rotor mentioned above.
  • Figure 1 shows the side cross sectional drawing indicating the one example of the operation form of this invention.
  • Figure 2 shows the enlarged drawing of the important portion of the hollow type excavation equipment.
  • the excavation equipment 1 has,
  • the code 39 is the brush portion which is prepared to contact the rotation supporter 32 at the direction of the circumference of said rotation supporter 32b in the upper side of the housing 35 of the hollowed type motor 3.
  • the driving current is supplied from the brush portion 39 to the coil of the rotor 32.
  • the hollowed type motor 3 having these rotor 32 and stator 33 may be any type either a brush motor or a brush-less motor.
  • the rotor 32 has the coil where current is flown, the stator 33 is made by a magnet, and, on the other hand, when the cylinder 32a of the rotor 32 is made by a magnet, the stator 33 has the coil where current is flown.
  • either the rotor 32 or the stator 33, which has a magnet may use the rare-earth high density magnet, such as a Nd-Fe-B type or a Sm-Co type, as a magnet.
  • the sending device 5 is the device, which transfers the top end of the core bit 2 connected with the hollow type motor 3, to the direction which approaches or departs toward the surface of the concrete C, and is connected one part of the hollow type motor 3.
  • This sending device 5 has the rack 5a and the pinion 5b, and the upper end of said rack 5a is connected with the loaf of the outer cover 6 and lower end is supported on the surface of the concrete C.
  • the hollow type motor 3 and the core bit 2 connected with said motor 3 can be driven up and down in the outer cover 6 by driving the pinion 5b connected with the driving sources, such as a motor, etc. That is, when the core bit 2 which is connected with the hollow type motor 3 goes down by the sending device 5, the concrete C is excavated cylindrically since the pressure of the bit 2a of said core bit 2 is increased to the concrete C. On the other hand, when the core bit 2 goes up with the hollow type motor 3 by the sending device 5, the core bit 2 is pulled out from the concrete C.
  • the pressing down pole 4 is penetrated cylindrical inside of core bit 2 formed cylindrically and its lower end is prepared to fit at the core A where is an inside portion of the core bit 2 in the concrete C.
  • This pressing down pole 4 is prepared independently to the hollow type motor 3 which can be moved up or down by the sending device 5 and the core bit 2 connected with said motor. Therefore, when the core bit 2 and the hollow type motor 3 is moved up or down, the position of the pressing down pole 4 is not changed.
  • the top end of this pressing down pole 4 projects out from the outer cover 6 and can be held down from upper side by hand, etc. In addition, it is possible to fix the pressing down pole 4 to the loaf portion of the outer cover 6.
  • the stationary portions 34a, 34b which is the chuck structure, is released to be the state in which the core bit 2 can penetrate to the hollow portion 32c of the rotor 32.
  • the core bit 2 is inserted to the hollow portion 32c as preparing its bit 2a at the outer side of the lower stationary portion 34b.
  • the two periphery faces of the core bit 2 are bound tight to be fixed by the stationary portions 34a, 34b which comprise the chuck structures at the both ends of said hollow portion 32b.
  • the rotor 32 which is connected with the stationary portions 34a, 34b is rotated by sending current in the coil which is prepared at the stator 33 (or rotor 32).
  • the core bit 2 fixed to the stationary portions 34a, 34b is rotated in one as rotating of the rotor 32.
  • the bit 2a of the core bit 2 is fitted to the surface of the concrete C.
  • the pressing down pole 4 is penetrated into the cylindrical inside of the core bit 2 and the lower end of said pole is also fitted to the surface of the concrete C where is at the inside position of the core bit 2.
  • the pinion 5b of the sending device 5 is driven to go down the core bit 2 with the hollow type motor 3.
  • the core bit 2 which is penetrated in the cylindrical inside of the rotor 32 and fixed by the stationary portion 34a, 34b which is connected one with said rotor 32, directly receives the rotation of the rotor 32. That is, since the hollow type motor 3 is the direct type motor which directly rotate the core bit 32, the rotation of the rotor 32 is directly transmitted to the core bit 2 through the stationary portions 34a, 34b and the core bit 2 can generate the high torque. Therefore, the excavation of the concrete C is steadily done. Moreover, since the rotation of the rotor 2 is directly transmitted to the stationary portions 34a, 34b and there are not parts, such as gears, etc., the noise generation is decreased.
  • the boring manipulation can be done rapidly and it is possible that the work periods of various operations is shorten and easily.
  • the direct type motor is used, the noise can be decreased remarkably (about 70 db) in comparison with the case of using a hydraulic motor or an electric motor having gears.
  • the number of the parts is small, the labour cost of the maintenance work can be remarkably decreased.
  • the core bit 2 is pulled out from the concrete C, only the core bit 2 is pulled out to remain the core A in the concrete C since the penetrated pressing down pole 4 inside of the cylinder of the core bit 2, pushes down the surface of the core A where is inside portion of the core bit 2.
  • the magnet which is used in either the rotor 32 or the stator 33 is the high density rare earth magnet which is a Nd-Fe-B type or a Sm-Co type, the size of the rotor 32 or the stator 33 can be made small and thereby, it is possible that the motor can be more small size and light weight.
  • the core bit 2A is directly fixed to the rotor 32 as a tool, it is possible to lessen the number of prepared parts as much as possible.
  • code 51 is the excavation equipment and code 52 is the hollow type motor prepared in said excavation equipment 51.
  • This excavation equipment 51 has the structure which has the pole 54 which stands on the base stand 53 and supports the hollow type motor 52 mentioned above though the sending device 55, and said hollow type motor can be transferred along said pole 54.
  • the hollow type motor 52 has the cylindrical rotation axis 61 in own centre and the core bit 63 is connected possible for attaching or detaching with the top end of said rotation axis 61 through the adapter 62.
  • This core bit 63 has the structure in which the bit 65 made by diamond bits is prepared in one for the circumference direction at the top end of the hollow type tube 54.
  • the bearings 69a, 69b support the neighbourhood of the upper and lower ends of the rotation axis 61, which is inserted at the centre of the rotor 67, and has the structure which can receive the strength for thrust direction and radial direction, which act to said rotation axis 61 and the rotor 67.
  • the rotary joint 71 is prepared. This rotary joint 71 is fixed at the upper wall 66a of the housing 66 and is connected with the back end of the rotation axis 61 in the condition of the liquids tightness and rotational free.
  • the flow route 72 which connects with the centre penetrated hole of the rotation axis 61, is formed and is opened to the side of said rotary joint 71.
  • the tube 74 is connected with this open portion 73 and the cooling water (cooling liquid) is sent into the rotary joint 71 from said tube 74.
  • the cooling water which is sent into the flow route 72 in the rotary joint 71 from the tube 74, flows the route 72 in the rotary joint 71 and is led to the penetrated hole 61a of the rotation axis 61.
  • the cooling water is sent into the tube 64 of the core bit 63, which is connected with the top end of the rotation axis 61 though the adapter 62.
  • code 75 is the brush, which is prepared to contact to the rotation axis 61 at the circumference direction of said rotation axis 61, at the upper side of the housing 56 of the hollow type motor 52. Then, the driving current is supplied from this brush 75.
  • the hollow type motor 52 which has these rotor 62 and stator 63, either a brush motor or a brush-less motor is available.
  • the stator 68 may have either a magnet or a coil.
  • the stator 68 may have a coil.
  • a high density rare earth magnet such as a Nd-Fe-B type or a Sm-Co type, is used.
  • the hollow type motor 52 which is at the upper side of the supporting pole 54, is positioned at the predetermined boring position of the concrete C so that the axial line of the rotation axis 61 may be in agreement, and the stand 53 is fixed on the concrete C.
  • electric current is send to the coil of the rotor 67 (or the stator 68) of the hollow type motor and the rotor 67 is rotated at high speed, i.e., about 4000 rpm.
  • the cooling water which is supplied from the coolant supplying device being not drawn, is sent into the penetrated hole 61a of the rotation axis 61 though the rotary joint 71, from the back end of said rotation axis 61 penetrated in the rotor 67 by inserting, and the rotation axis 61 is rotated. Then, the concrete C is excavated by bit 65 of the core bit 63, and the cooling water flows along the inner circumference face of the penetrated hole 61a. Thereby, the heat in the hollow type motor 52 is absorbed through the rotation axis 61, and, as a result, inner space of the hollow type motor is cooled very well.
  • the hollow type motor 52 has the configuration sealed by the housing 66 and is cooled by the cooling water set into the penetrated hole 61a of the rotation axis 61, it can certainly prevent to be entered by chips or powder dust into said hollow type motor 52, with keeping the high cooling efficiency. Therefore, the excavation equipment 51 with few failures can be obtained.
  • water is used as a coolant.
  • the further cooling effect can be obtained by using the liquid excellent in cooling effect other than water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP20000111882 1999-06-11 2000-06-09 Ausgrabungsanlage Withdrawn EP1059417A2 (de)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP16598699 1999-06-11
JP16598699 1999-06-11
JP16598599 1999-06-11
JP16598599 1999-06-11
JP2000019181A JP2001057757A (ja) 1999-06-11 2000-01-27 中空型モータ
JP2000019181 2000-01-27
JP2000034198 2000-02-10
JP2000034198A JP2001055884A (ja) 1999-06-11 2000-02-10 掘削装置
JP2000054814 2000-02-29
JP2000054814A JP2001241284A (ja) 2000-02-29 2000-02-29 掘削装置

Publications (1)

Publication Number Publication Date
EP1059417A2 true EP1059417A2 (de) 2000-12-13

Family

ID=27528392

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000111882 Withdrawn EP1059417A2 (de) 1999-06-11 2000-06-09 Ausgrabungsanlage

Country Status (2)

Country Link
EP (1) EP1059417A2 (de)
TW (1) TW497322B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104963623A (zh) * 2015-07-15 2015-10-07 孙卫香 一种带有集水孔且运行安全的挖孔机
CN105178841A (zh) * 2015-07-15 2015-12-23 孙卫香 一种带集水孔的挖孔机
DE112007000179B4 (de) 2006-01-17 2020-07-30 Warren C. Duncan Vorrichtung und Verfahren zum Bohren von Löchern
EP3467209B1 (de) 2017-10-06 2023-06-28 Soilmec S.p.A. Ausgrabungswerkzug zur herstellung von scheidewänden und zugehöriges ausgrabungsmaterial
CN119900486A (zh) * 2025-01-16 2025-04-29 四川华行地质设计院有限公司 一种地质复杂区岩土勘探用钻机装置
CN120251129A (zh) * 2025-06-09 2025-07-04 中国电建集团成都勘测设计研究院有限公司 用于超深孔定向钻探的双动力系统绳索取心钻具及方法

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112007000179B4 (de) 2006-01-17 2020-07-30 Warren C. Duncan Vorrichtung und Verfahren zum Bohren von Löchern
CN104963623A (zh) * 2015-07-15 2015-10-07 孙卫香 一种带有集水孔且运行安全的挖孔机
CN105178841A (zh) * 2015-07-15 2015-12-23 孙卫香 一种带集水孔的挖孔机
EP3467209B1 (de) 2017-10-06 2023-06-28 Soilmec S.p.A. Ausgrabungswerkzug zur herstellung von scheidewänden und zugehöriges ausgrabungsmaterial
CN119900486A (zh) * 2025-01-16 2025-04-29 四川华行地质设计院有限公司 一种地质复杂区岩土勘探用钻机装置
CN119900486B (zh) * 2025-01-16 2025-10-10 四川华行地质设计院有限公司 一种地质复杂区岩土勘探用钻机装置
CN120251129A (zh) * 2025-06-09 2025-07-04 中国电建集团成都勘测设计研究院有限公司 用于超深孔定向钻探的双动力系统绳索取心钻具及方法

Also Published As

Publication number Publication date
TW497322B (en) 2002-08-01

Similar Documents

Publication Publication Date Title
US6227777B1 (en) High speed drilling spindle with reciprocating shaft and double-gripping centrifugal chuck
CN102000849B (zh) 用于压缩机的装置和工具
CN100595008C (zh) 马达心轴
EP1093897B1 (de) Hochgeschwindigkeitskernbohrer und Verfahren zu dessen Anwendung
JPWO2002094527A1 (ja) 穿孔装置及び穿孔工法
EP1059417A2 (de) Ausgrabungsanlage
US20160067791A1 (en) High-speed rotary electrical connector for use in ultrasonically assisted machining
KR102417763B1 (ko) 초음파 보조 기계가공에 사용하기 위한 고속 회전 전기 커넥터
JP2002273722A (ja) 穿孔装置
HK1033163A (en) Excavation equipment
JPH1199403A (ja) 主軸装置
CN104981321A (zh) 带有抽气连接的刀具、机床和加工方法
JP2001173350A (ja) ターボブロア機能を有するダイレクトモータ及びそれを用いた掘削装置
JP2001057757A (ja) 中空型モータ
JP2001251811A (ja) ダイレクトモータ
CN1316816A (zh) 挖掘装置
JP2001241283A (ja) 掘削装置
JP2002067027A (ja) 高速穴あけ装置及び高速穴あけ工法
JP2001288975A (ja) コアビット及び掘削装置
JP2001298904A (ja) 掘削装置
JP2001241284A (ja) 掘削装置
JP2003231083A (ja) パラレルリンク機構を用いた加工機および加工システム
JP2001055884A (ja) 掘削装置
JP2001191204A (ja) ダイレクトモータを用いた穴あけ加工方法
JP2002301614A (ja) 穿孔工具及び穿孔装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20030624

REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1033163

Country of ref document: HK