ELECTRIC MOTOR, ROTARY DRIVE SYSTEM, AND HYDRAULIC SHOVEL

To provide an electric motor capable of smoothly supplying lubricant oil to a sliding part, and to provide a rotary drive system and a hydraulic shovel thereof.SOLUTION: An electric motor comprises: a rotor comprising a rotation axis 40 rotating around an axis line O extending in a vertical directio...

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Hauptverfasser: MINAMIURA AKIRA, CHIBA TEIICHIRO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide an electric motor capable of smoothly supplying lubricant oil to a sliding part, and to provide a rotary drive system and a hydraulic shovel thereof.SOLUTION: An electric motor comprises: a rotor comprising a rotation axis 40 rotating around an axis line O extending in a vertical direction, and a rotor core fixed on an outer peripheral surface of the rotation axis 40; a stator surrounding the rotor core from an outer peripheral side; a lower bottom part 27 as a partition wall for partitioning a first space to which lubricant oil is supplied from outside while arranging the rotor and the stator; a storage part 180 capable of storing the lubricant oil supplied inside the first space R1; a brake mechanism 120 as a drive part for discharging the lubricant oil inside the storage part 180 into the first space R1; and a sliding part into which each lubricant oil discharged from an inside of the storage part 180 is introduced.SELECTED DRAWING: Figure 5 【課題】摺動部に潤滑油を円滑に供給することが可能な電動機、回転駆動システム及び油圧ショベルを提供する。【解決手段】上下方向に延びる軸線O回りに回転する回転軸40、及び、該回転軸40の外周面に固定されたロータコアを有するロータと、該ロータコアを外周側から囲うステータと、ロータ及びステータが配置されるとともに外部から潤滑油が供給される第一空間を区画する隔壁としての下底部27と、第一空間R1内に供給される潤滑油を貯留可能な貯留部180と、貯留部180内の潤滑油を第一空間R1内に排出する駆動部としてのブレーキ機構120と、貯留部180内から排出された潤滑油がそれぞれ導入される摺動部と、を有する。【選択図】図5