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    • 30. 发明申请
    • Air-core stepping motor and shaft support structure
    • 空心步进电机和轴支撑结构
    • US20110057521A1
    • 2011-03-10
    • US12661903
    • 2010-03-25
    • Kenji KawamuraTsutomu Naitou
    • Kenji KawamuraTsutomu Naitou
    • H02K37/12F16C35/00
    • H02K37/14F16C19/06F16C19/54F16C33/41F16C33/581F16C33/60F16C35/042F16C2380/26H02K5/1732
    • An air-core stepping motor includes: a tubular stator including a yoke and a coil; a tubular rotor including a cylindrical magnet; and rotor support means for supporting the rotor rotatably with respect to the stator, the rotor support means including a sleeve fixed to the rotor, a holder fixed to the stator, and a ball held between the sleeve and the holder, the holder having a first holder member and a second holder member separated in a rotational-axial direction of the motor, the first holder member and the second holder member being assembled with the first holder member or the second holder member fitted to the sleeve, and being used thereafter with the first holder member or the second holder member disconnected from the sleeve.
    • 一种空心步进电动机,包括:一个包括轭和一个线圈的管状定子; 包括圆柱形磁体的管状转子; 以及用于相对于所述定子可转动地支撑所述转子的转子支撑装置,所述转子支撑装置包括固定到所述转子的套筒,固定到所述定子的保持器以及保持在所述套筒和所述保持器之间的球,所述保持器具有第一 保持器构件和沿电动机的旋转轴方向分离的第二保持器构件,第一保持器构件和第二保持器构件与第一保持器构件或第二保持器构件组装在一起,并被安装到套筒上, 第一保持器构件或第二保持器构件与套筒断开连接。