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Research of the Thrust-Radial Composite Porous Bearings with Hydrodynamic shape Forming for DC Micro-Spindle Motor

Research Project

Project/Area Number 13650161
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 設計工学・機械要素・トライボロジー
Research InstitutionYonago National College of Techinology

Principal Investigator

OHTSUKA Shigeru  Yonago National Collage of Technology, Department of Mechanical Engineering, Professor, 機械工学科, 教授 (80300606)

Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2003: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2002: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2001: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsPOROUS BEARING / HYDR0DYNAMIC SHAPE FORMING / TRIBOLQGICAL BEARING CHARACTERISTICS / THRUST / RADIAL (JURNAL) / COMPOSITE BEARING / SPINDLE MOTOR / SHAFT WHIRLING / 多孔質動圧軸受 / スラスト・ラジアル複合軸受 / 動圧端面形状 / 長寿命化 / 汎用化
Research Abstract

This study proposes the combination of some hydrodynamic pressure shapes formed on the end surface or on the annular surface of porous oil impregnated sintered bearing as a DC spindle motor's bearing system, and examines experimentally to optimize the hydrodynamic shape combination as thrust-radial composite bearing. Hydro Wave Bearing or Pump In as a thrust hydrodynamic shape, and Herringbone, Three Lobed Type or Sleeve (as a standard) as a radial hydrodynamic shape, were proposed, and the total of six kinds of combinations was produced as thrust-radial composite bearing.
Floatation, temperature rise, friction torque and shaft whirling, such as the lubrication characteristics we reexamined experimentally. As experimental results, it was confirmed that low shaft whirling, energy-saving and life-longevity of bearing itself, were achieved by hydrodynamic pressure interaction of thrust-radial composite bearing. These experimental results clarified the following points.
1)At the time of floatation characteristic testing, radial hydrodynamic pressure shapes are dominant, floatation characteristic can be improved with the multiplier effect due to adding thrust hydrodynamic pressure shape to this. Furthermore, the satisfactory floatation characteristic which is most stabilized was obtained with combination of the PIN HB. (Almost it becomes complete floatation condition more than 1000 rpm)
2)On the measurements of temperature rise and friction torque, the radial hydrodynamic pressure shape also decrease both characteristic value in order of the TLT<SLV≦HB, it is especially possible for TLT to decrease in half of other combination characteristic value regardless of thrust hydrodynamic pressure shape.
3)The tendency of second point is even with durability test, for the PIN-TLT which is most superior in oil consumption rate, you can expect about twice capability of other combination with respect to energy-saving and bearing life-longevity.

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (33 results)

All Other

All Publications (33 results)

  • [Publications] 大塚 茂: "多孔質動圧スラスト・ラジアル複合軸受に関する実験的研究"日本機械学会熊本地方講演論文集. 018-2号. 189-190 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 大塚 茂: "多孔質動圧スラスト・ラジアル複合軸受に関する実験的研究(II)"日本機械学会松山地方公演論文集. 025-2号. 257-258 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 大塚 茂, 日立粉末冶金(株): "長寿命複合軸受"日本粉末冶金工業会粉体粉末冶金協会春期講演大会. 004-005 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 大塚 茂: "DCスピンドルモータ用多孔質動圧軸受の軸受機構及び潤滑媒体に関する研究"(財)鳥取県産業振興機構(産学官連携成果普及発表会編). 007-013 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 佐々木 彰彦, 大塚 茂: "多孔質動圧スラスト・ラジアル複合軸受における潤滑特性の検討"日本機械学会中国四国学生員研究発表講演論文集(開催地:鳥取). 167 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 大塚 茂: "DCスピンドルモータ用多孔質動圧軸受の軸受機構及び潤滑媒体に関する研究"日本機械学会2003年次大会講演論文集(VIII)(開催地:徳島). No.03-1号. 348-349 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shigeru Ohtsuka, Motozo Hayakawa: "Study on the Mechanism of Lubrication in Porous Thrust Bearings With a Wavy Surface"ASME JOURNAL OF LUBRICATION TECHNOLOGY. Vol.121, No. 3. 538-545 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shigeru Ohtsuka: "Examination of Correspondence Between Experiment and Simulation on Hydrodynamic Porous Thrust Bearings with Various End Shapes"Fluid Analytical Software Pac "SCRYU" for fluid bearing, developmental anniversary Conference in Tokyo. 01-04 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shigeru Ohtsuka: "Experimental Study on the Hydrodynamic Porous Thrust Bearings"JSME Tokushima local Conference proceeding collection. No. 005-2. 205-206 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shigeru Ohtsuka, Masaki Yakabe: "Experimental Study on the Thrust-Radial Integrated Porous Bearings with Hydrodynamic shape Forming"JSME Kumamoto local Conference proceeding collection. No. 018-2. 189-190 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shigeru Ohtsuka, Masaki Yakabe: "Experimental Study on the Thrust-Radial Integrated Porous Hydrodynamic shape Forming (II)"JSME Matsuyama local Conference proceeding collection. No. 025-2. 257-258 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shigeru Ohtsuka, Hitachi Powdered Metal Laboratory: "Research on the life-longevity Thrust-Radial Composite Porous Bearings"Japan Powder Metallurgy Manufacturer's Association and Japan Society of Powder and Powder Metallurgy the spring period conference proceeding. 04-05 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shigeru Ohtsuka: "Study on the bearing mechanism of hydrodynamic porous bearing for the DC spindle micro-motor and the research of lubricating medium used in porous bearing"The Tottori industrial promotion organization Edition (The Conference for Spreading research and development results of industry-university-government (operation study). 07-13 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Akihto Sasaki, Shigeru Ohtsuka: "Experimental Study on Thrust-Radial Integrated Porous Bearings with Hydrodynamic shape Forming"JSME Tottori local Conference proceeding collection. 167 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shigeru Ohtsuka, Masaki Yakabe: "Study on the Thrust-Radial Integrated Porous Bearings with Hydrodynamic shape Forming for DC Spindle Motor"JSME Tokushima 2003 annual Conference proceeding collection (VIII). No.03-1. 348-349 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 大塚 茂: "多孔質動圧スラスト・ラジアル複合軸受に関する実験的研究"日本機械学会熊本地方講演論文集. 018-2号. 189-190 (2001)

    • Related Report
      2003 Annual Research Report
  • [Publications] 大塚 茂: "多孔質動圧スラスト・ラジアル複合軸受に関する実験的研究(II)"日本機械学会松山地方講演論文集. 025-2号. 257-258 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] 大塚 茂, 日立粉末治金(株): "長寿命複合軸受"日本粉末冶金工業会粉体粉末冶金協会春期講演大会. 004-005 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] 大塚 茂: "DCスピンドルモータ用多孔質動圧軸受の軸受機構及び潤滑媒体に関する研究"(財)鳥取県産業振興機構(産学官連携成果普及発表会編). 007-013 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] 佐々木 彰彦, 大塚 茂: "多孔質動圧スラスト・ラジアル複合軸受における潤滑特性の検討"日本機械学会中国四国学生員研究発表講演論文集(開催地:鳥取). 167 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 大塚 茂: "DCスピンドルモータ用多孔質動圧軸受の軸受機構及び潤滑媒体に関する研究"日本機械学会2003年次大会講演論文集(VIII)(開催地:徳島). No.03-1号. 348-349 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] ShigeruOHTSUKA, MotozouHAYAKAWA: "Experimental Study on the Mechanism of Lubrication in Hydrodynamic Porous Thrust Bearings with a Wavy Surface"Trans.ASME, J.Tribology Technol.. Vol.121. 538-545 (1999)

    • Related Report
      2002 Annual Research Report
  • [Publications] 大塚 茂: "多孔質動圧スラスト軸受に関する実験的研究 第3報"日本機械学会徳島地方講演論文集. 005-2号. 205-206 (2000)

    • Related Report
      2002 Annual Research Report
  • [Publications] 大塚 茂: "多孔質動圧スラスト軸受における各種動圧形状のシミュレーション解析値と実験値との整合性検討について"(株)ソフトウェアクレイドル東京特別講演特別企画論文. 001-004 (2000)

    • Related Report
      2002 Annual Research Report
  • [Publications] 大塚 茂: "多孔質動圧スラスト・ラジアル複合軸受に関する実験的研究"日本機械学会熊本地方講演論文集. 018-2号. 189-190 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 大塚 茂: "多孔質動圧スラスト・ラジアル複合軸受に関する実験的研究(II)"日本機械学会松山地方講演論文集. 025-2号. 257-258 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 大塚 茂, 日立粉末冶金(株): "長寿命複合軸受"日本粉末冶金工業会粉体粉末冶金協会春期講演大会. 004-005 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 大塚 茂, 早川元造: "「多孔質動圧スラスト軸受の潤滑機樹こ関する実験的研究」"日本機械学会論文集C編. 64-618号. 265-272 (1998)

    • Related Report
      2001 Annual Research Report
  • [Publications] 大塚 茂, 早川元造: "「多孔質動圧スラスト軸受の潤滑機構に関する実験的研究II」"日本機械学会論文集C編. 65-631号. 322-329 (1999)

    • Related Report
      2001 Annual Research Report
  • [Publications] Shigeru OHTSUKA, Motozon HAYAKAWA: """Experimental Study on the Mechanism of Lubrication in Hydrodynamic Porous Thrust Bearings with a Wavy Surface""Trans. ASME, J. Tribology Technol.. Vol.121. 538-545 (1999)

    • Related Report
      2001 Annual Research Report
  • [Publications] 大塚 茂: "「多孔質動圧スラスト軸受に関する実験的研究 第3報」"日本機械学会徳島地方講演論文集. 005-2号. 205-206 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 大塚 茂: "「多孔質動圧スラスト軸受における各種動圧形状のシミュレーション解析値と実験値との整合性検討について」"(株)ソフトウェアクレイドル東京特別講演特別企画論文. 001-004 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 大塚 茂: "「多孔質動圧スラスト・ラジアル複合軸受に関する実験的研究」"日本機械学会熊本地方講演論文集. 018-2号. 189-190 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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