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Studies on Precision Grinding of Internal Gears and Internal Speed Changers

Research Project

Project/Area Number 04650136
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 機械要素
Research InstitutionSaga University

Principal Investigator

ISHIBASHI Akira  Saga Univ.Mech.Engg.Professor, 理工学部, 教授 (80037720)

Co-Investigator(Kenkyū-buntansha) SONODA Keiji  Saga Univ.Mech.Engg.Researcher, 理工学部, 助手 (50163142)
Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1993: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1992: ¥1,100,000 (Direct Cost: ¥1,100,000)
KeywordsMachine element / Gear / Internal gear / Planetary gear / Gear grinder / Gear noise / Traction drive / Efficiency
Research Abstract

An internal gear grinder was produced by improving the mechanism of a CNC (computer numerically controlled) external gear grinder which was previously designed and made by the present investigators. The form grinding wheel for internal gears was trued automatically on the gear grinder using the servo-motors and a dresser with a single diamond grain. Internal gears with a module of 4, 60 teeth and a face-width of 50 mm were finished on the trial internal gear grinder. Moreover, the external gears to be used for the sun and planetary gears were finished by the trial gear grinder. Power transmission efficiency of the internal gear drive with these gears is higher than 98% because the speed reduction ratio is not high and contains no differential mechanism.
Two kinds of differential gear drives were designed and made to increase the reduction ratio, and running tests were conducted. Moreover some gears in the internal gear train of an automatic transmission of a passenger car were ground an … More d the effects of grinding on the running noise and power transmission efficiency were examined.
The trial internal gear drives was high in the efficiency, but running noise was not low as expected. As hopeful high performance internal gear drives, internal hybrid reducer were designed and made, in which one of the two internal gears was replaced by a ring roller and the sun and planetary rollers were used instead of the gears. These hybrid reducers produced appreciably lower running noise than the internal gear drives because the shock loading between teeth is modified by the oil film between the rollers.
However, it should be noted that the power transmission capacity of the hybrid reducers is lower than the internal gear drives when the sizes of the gear boxes are assumed to be constant. Therefore, further systematic investigation is required to reduce the running noise of internal gear drives in the field of the design and manufacturing method in gear systems together with gear grinding technology. Less

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] Akira ISHIBASHI: "Effects of Kinds of Oil on Power Transmission Efficiency of Planetary Traction Drives" Journal of Synthetic Lubrication. Vol.9. 3-16 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 石橋 彰: "遊星歯車と差動遊星歯車の動力伝達効率の計算式(第1報,代表的歯車装置に対する正確な計算式の誘導)" 日本機械学会論文集. Vol.58. 207-213 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Akira ISHIBASHI: "Mirrorlike Finishing of Precision Rollers and Changes on the Roller Surfaces Caused by Loaded Running" JSME International Journal,Series III. Vol.35. 286-293 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Shao Ming: "特殊歯形を持つはすば内歯車の形削り技術に関する研究" 中国機械学会誌. Vol.29. 37-40 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Akira ISHIBASHI: "Estimation of Efficiency of Gear Drives with Complex Mechanism using Traction Coefficient obtained by Disk Machine" Proceedings of 6th International Con.on Tribolgy. Vol.4. 371-376 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Akira ISHIBASHI: "Effects of surface roughness and type of oil on traction characteristics between steel rollers" International Journal on the Science ant Technology of Friction,Lubrication and Wear. (印刷中). (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Akira ISHIBASHI: "Exact Equations for Calculating Power Transmission Efficiencies of Compound Internal Gear Drives" Proc.Inter.Gearing Conf.of England. (投稿中). (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Keiji SONODA: "Power Transmission Efficiency of Differential Hybrid Reducers Consisting of Gear and Traction Drives" Proc.Inter.Gearing Conf.of England. (投稿中). (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Akira ISHIBASHI, Keiji SONODA: "Effects of Kinds of Oil on Power Transmission Efficiency of Planetary Traction Drives" Journal of Synthetic Lubrication. Vol.9, No.1. 3-16 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Akira IHIBASHI, Keiji SONODA: "Mirrorlike Finishing of Precision Rollers and Changes on the Roller Surfaces Caused by Loaded Running" JSME International Journal, Series III. Vol.35, No.2. 286-293 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Akira IHIBASHI, Keiji SONODA, Shigeru HOYASHITA: "Power Transmission Efficiencies of Planetary and Differential Gear Drive" Transactions of the JSME. Vol.58 No.554, C. 207-213 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Shao Ming, Liang Xichang, Hidehiro YOSHINO, Akira ISHIBASHI: "Research on Technology of Shaping Internal Gears with a Special Profile" Chinese Jour.of Mech.Engg.Vol.29, No.6. 37-40 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Akira IHIBASHI, Keiji SONODA, Shigeru HOYASHITA: "Estimation of Efficiency of Gear Drives with Complex Mechanism using Traction Coefficient Obtained by Disk Machine" Proc.of 6th Inter.Con.on Tribolgy. Vol.4. 371-376 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Akira IHIBASHI, Keiji SONODA: "Effects of Surface Roughness and Type of Oil on Traction Characteristics between Steel Rollers" International Journal on the Science and Technology of Friction, Lubrication and Wear. (in press). (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Akira IHIBASHI, Keiji SONODA: "Exact Equations for Calculating Power Transmission Efficiencies of Compound Internal Gear Drivers" Proc.Inter.Gearing Conf.of England. (in contribution). (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Keiji SONODA, Akira ISHIBASHI, Hiroyuki NISHIDA: "Power Transmission Efficiency of Differential Hybrid Reducers Consisting of Gear and Traction Drives" Proc.Inter.Gearing Conf.of England. (in contribution). (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 石橋 彰: "外転差動を含む複合歯車機構の正確な効率計算式" 日本機械学会第71期全国大会講演論文集. Vol.E. 127-129 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 園田 計二: "EHL条件下の接触面の摩擦係数について" 日本機械学会第71期全国大会講演論文集. Vol.E. 94-96 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Akira ISHIBASHI: "Estimation of Efficiency Gear Drives with Complex Mechanism using Traction Coefficient obtained by Disk Machine" Proceeding of 6th Internatinal Con.on Tribolgy. Vol.4. 371-376 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Shao Ming: "特殊歯形を持つはすば内歯車の形削り技術に関する研究" 中国機械学会誌. Vol.29. 37-40 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Akira ISHIBASHI: "Effects of surface roughness and type of oil on traction characteristics between steel rollers" Internatinal Jounal on the Science ant Technology of Friction,Lubrication and Wear. 印刷中. (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] 石橋 彰: "遊星歯車と差動歯車の動力伝達効率の計算式(第1報,代表的歯車装置に対する正確な計算式)" 日本機械学会論文集. 58. 207-213 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 石橋 彰: "Estimation of Efficiency of Gear Drives with Complex Mechanism using Traction Coefficient Obtuined by Disk Machine" Proceedirgs of 6th Inter.Congress on Tribology. (1993)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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