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 : ラジアル軸受における動圧形状形成の効果および複合軸受の潤滑性能に関する実験的考察(機械要素,潤滑,工作,生産管理など)

概要

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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 were examined 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.
社団法人日本機械学会の論文
2004-10-25