SG165140A1 - Excavation equipment - Google Patents

Excavation equipment

Info

Publication number
SG165140A1
SG165140A1 SG200004636-7A SG2000046367A SG165140A1 SG 165140 A1 SG165140 A1 SG 165140A1 SG 2000046367 A SG2000046367 A SG 2000046367A SG 165140 A1 SG165140 A1 SG 165140A1
Authority
SG
Singapore
Prior art keywords
rotor
core bit
prepared
core
cylindrical
Prior art date
Application number
SG200004636-7A
Inventor
Shigeru Mazaki
Toshio Imaoka
Kusuo Sato
Original Assignee
Mitsubishi Materials Corp
Nippon Diamond Corp
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/en
Priority claimed from JP2000034198A external-priority patent/JP2001055884A/en
Priority claimed from JP2000054814A external-priority patent/JP2001241284A/en
Application filed by Mitsubishi Materials Corp, Nippon Diamond Corp filed Critical Mitsubishi Materials Corp
Publication of SG165140A1 publication Critical patent/SG165140A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The 1 has the cylindrical rotor 32 which is prepared the core bit 2 penetrably, the cylindrical stator 33 which is prepared at the periphery side of said rotor, the stationary portions 34a, 34b which are prepared at the both sides of said rotor and makes to rotate the core bit 2 with rotation of said rotor 32 by fixing the periphery side of the core bit 2 which is prepared in the cylindrical inside of said rotor 32, and the pressing down pole 4 which is inserted into the cylindrical inside of the rotor 32 and fits on the surface of the core A where is the inside portion of core bit 2 in the concrete C. By this way, it is possible to generate high torque, to exchange easily the wasted core bit and, in addition, to prevent the fitting core A to the inside of the core bit 2.
SG200004636-7A 2000-01-27 2000-08-18 Excavation equipment SG165140A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000019181A JP2001057757A (en) 1999-06-11 2000-01-27 Hollow motor
JP2000034198A JP2001055884A (en) 1999-06-11 2000-02-10 Excavating device
JP2000054814A JP2001241284A (en) 2000-02-29 2000-02-29 Excavation device

Publications (1)

Publication Number Publication Date
SG165140A1 true SG165140A1 (en) 2010-10-28

Family

ID=27342160

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200004636-7A SG165140A1 (en) 2000-01-27 2000-08-18 Excavation equipment

Country Status (3)

Country Link
KR (1) KR20010077918A (en)
CN (1) CN1316816A (en)
SG (1) SG165140A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4053297B2 (en) * 2001-04-11 2008-02-27 三菱マテリアル株式会社 Grinding material and drilling method using the same
KR100938939B1 (en) * 2007-11-27 2010-01-27 박정열 Drilling machine
CN101949259A (en) * 2010-10-15 2011-01-19 肖双喜 Multifunctional shale electric drill
CN102185401B (en) * 2011-05-09 2013-02-27 北京交通大学 High speed permanent magnet synchronous motor rotor
CN106226119B (en) * 2016-07-20 2023-07-04 辽宁省水利水电科学研究院有限责任公司 Concrete undisturbed sample collection system
CN118310795B (en) * 2024-04-25 2024-08-27 交通运输部公路科学研究所 Portable polar region ice and snow rapid core drilling sampling device and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5346775A (en) * 1993-02-22 1994-09-13 At&T Laboratories Article comprising solder with improved mechanical properties
US5914598A (en) * 1992-07-30 1999-06-22 Schlumberger Technology Corporation Pulsed nuclear magnetism tool for formation evaluation while drilling

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5914598A (en) * 1992-07-30 1999-06-22 Schlumberger Technology Corporation Pulsed nuclear magnetism tool for formation evaluation while drilling
US5346775A (en) * 1993-02-22 1994-09-13 At&T Laboratories Article comprising solder with improved mechanical properties

Also Published As

Publication number Publication date
KR20010077918A (en) 2001-08-20
CN1316816A (en) 2001-10-10

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