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    • 2. 发明公开
    • AXIAL PERMANENT MAGNETIC SUSPENSION BEARING HAVING MICRO-FRICTION OR NO FRICTION OF PIVOT POINT
    • WITH MICRO摩擦或无摩擦转折点轴向永磁体安装式存储
    • EP3091241A1
    • 2016-11-09
    • EP14859583.8
    • 2014-11-06
    • Li, GuokunWang, Chaoxian
    • Li, GuokunWang, Chaoxian
    • F16C32/04H02N15/00F16C39/00
    • F16C32/0417F16C39/063H02K7/09
    • Disclosed is an axial permanent magnetic suspension bearing having micro-friction or no friction of pivot point, comprising a support bearing (4) disposed on a vertical shaft, and a permanent magnetic suspension bearing (3) disposed on the vertical shaft, wherein the permanent magnetic suspension bearing (3) comprises a stator pull-push magnet (31) provided on a stator (1), and a rotor pull-push magnet (32) correspondingly provided on a rotor (2) by means of a soft magnetic material base (322) and separated from the stator pull-push magnet (31) by an axial gap to form a pull-push magnetic circuit, wherein said stator pull-push magnet (31) and said rotor pull-push magnet (32) are respectively composed of two or more than two annular permanent magnets provided as radially closely fitting and with magnetic poles alternating in the radial direction, and upper and lower annular permanent magnets correspondingly in the same radial position have the same magnetic strength and inverse polarity, the annular surfaces of the annular permanent magnets, which are near the vertical shaft, of the stator pull-push magnet (31) and the rotor pull-push magnet (32) are spaced from the surface of the vertical shaft by a radial distance. The present invention has small magnets, is good to manufacture, is good to install, and has a high radial restoring force, while the force of attraction is great and friction force is reduced by 98%.
    • 7. 发明公开
    • ACTIVE MAGNETIC BEARING
    • AKTIVES MAGNETLAGER
    • EP2543901A2
    • 2013-01-09
    • EP11750899.4
    • 2011-03-02
    • D&M Technology Co., Ltd
    • CHOI, Sang-Hyun
    • F16C39/00F16C32/04F16C35/00
    • F16C32/047F16C32/0442F16C32/0446F16C32/0461F16C32/048
    • An active magnetic bearing includes a bearing housing, a bearing stator, a bearing armature, a position detector, a jacket, and a stress buffering member. The bearing stator is accommodated in the bearing housing to support rotation of a rotor by using a magnetic force. The bearing armature is disposed to be spaced apart from the bearing stator by an interval and fixed to the rotor. The position detector is installed in the bearing housing to detect a position of the rotor. The jacket is interposed between the bearing stator and the bearing armature to seal a space between the bearing stator and the bearing housing. The stress buffering member connected to opposite ends of the jacket and the bearing housing, to buffer a stress generated due to differences between thermal exposition coefficients and temperatures of the bearing housing and the jacket.
    • 主动磁轴承包括轴承座,轴承定子,轴承电枢,位置检测器,护套和应力缓冲构件。 轴承定子被容纳在轴承壳体中以通过使用磁力来支撑转子的旋转。 轴承电枢被设置成与轴承定子隔开一段间隔并固定到转子上。 位置检测器安装在轴承壳体中以检测转子的位置。 护套插入在轴承定子和轴承电枢之间,以密封轴承定子和轴承壳体之间的空间。 所述应力缓冲构件连接到所述护套和所述轴承壳体的相对端部,以缓冲由于所述轴承壳体和所述护套的热暴露系数和温度之间的差异而产生的应力。