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    • 92. 发明公开
    • VORRICHTUNG MIT EINEM DIREKT ANGETRIEBENEN ROTATIONSKÖRPER UND AEROSTATISCHES LAGER
    • VORRICHTUNG MIT EINEM DIREKT ANGETRIEBENENROTATIONSKÖRPERUND EINEM AEROSTATISCHEN LAGER
    • EP2049016A2
    • 2009-04-22
    • EP07786659.8
    • 2007-08-10
    • AeroLas GmbH Aerostatische Lager-Lasertechnik
    • MUTH, Michael
    • A61B6/00A61B6/03F16C32/06G01N23/04
    • F16C32/0618A61B6/035A61B6/56F16C32/0666F16C2300/14F16C2316/10
    • A device having a directly driven rotating body (1), which is radially supported on radial bearings (4, 4') at its circumference (11) with regard to a stationary body (2), and which is axially supported at least at a first end side (10) with regard to the stationary body (2), wherein aerostatic bearings (5, 5', 5') are provided for the axial bearing, is characterized in that on the first end side (10) an annular magnet arrangement (32) is configured coaxial to the rotational axis (X) of the rotating body (1), and that at the stationary body (2), at least one electrical coil arrangement (3), located opposite of the annular magnet arrangement (32) in axial direction, is provided, which together with the annular magnet arrangement (32) forms components of an electrical direct drive (3) for the rotating body (1).
    • 一种具有直接驱动的旋转体(1)的装置,其圆周(11)相对于固定体(2)径向放置在径向轴承(4,4')上,并且其至少一个第一面侧(10) 相对于静止体(2)轴向安置,其中设置用于轴向支撑安装件的空气静力轴承(5,5',5“),其特征在于,所述第一面侧(10)具有环形磁体布置(32) ),其与所述旋转体(1)的旋转轴线(X)同轴配置,并且所述静止体(2)具有至少一个电气线圈装置(30),所述电线圈装置位于与所述环形磁体装置 32),并且与环形磁体装置(32)一起形成用于旋转体(1)的电力直接驱动(3)的部件。
    • 97. 发明公开
    • A porous hydrostatic gas-bearing
    • Poröses,gasstatisches Lager。
    • EP0488715A2
    • 1992-06-03
    • EP91310992.2
    • 1991-11-28
    • NGK INSULATORS, LTD.
    • Ono, KatsuhiroKitamura, KazumasaMisawa, Hidenobu
    • F16C32/06F16C33/04
    • F16C33/043F16C32/0618F16C32/0685
    • A porous, hydrostatic gas-bearing with whirl stability and static stiffness, having a porous ceramic bushing supporting a rotating journal with a bearing clearance, through which bushing a pressurized gas is fed into the clearance to lubricate the rotating journal, which is characterised in that a porous ceramic material having a gas permeability satisfying at least one of the following relationships (1), (2) and (3) is used as the bushing: K ≦ 7 x 10⁻¹⁵ q ≦ 2.07x10⁻¹³P₁² - 6.84x10⁻⁹P₁ - 6.9x10⁻³
      and Y
      wherein K (m²) is a gas permeating rate, q (m³/s·m²) is a mass rate of gas flow per unit area, and Y is a gas permeability coefficient. This gas-bearing can be used with whirl stability at a maximum rotating speed of the journal of 30,000 r.p.m. or more within a range defined by the above parameter, K, q or Y.
    • 具有旋转稳定性和静态刚度的多孔静压气体轴承,具有支撑具有轴承间隙的旋转轴颈的多孔陶瓷衬套,通过套管将加压气体供给到间隙中以润滑旋转轴颈,其特征在于 使用满足以下关系(1),(2)和(3)中的至少一个的气体渗透性的多孔陶瓷材料作为衬套:其中K(m 2) )是气体渗透速率,q(m 3 / sm 2)是每单位面积的气体流量的质量率,Y是气体渗透系数。 这种气体轴承可以在轴颈的最大转速为30,000转/分的旋转稳定性下使用。 以上,由上述参数K,q或Y定义的范围内。