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    • 10. 发明授权
    • Combination package tilt pad journal bearing/dual self equalizing thrust
bearings, with hydrostatic lift provisions
    • 组合包倾斜垫轴承轴承/双自重均衡推力轴承,具有静液压提升规定
    • US5271676A
    • 1993-12-21
    • US922533
    • 1992-07-30
    • Richard K. KeckBlake WilsonSteve HendricksThomas R. Byrne
    • Richard K. KeckBlake WilsonSteve HendricksThomas R. Byrne
    • F01D25/16F16C17/03F16C17/06F16C32/06F16C33/10F16C33/74F16C17/10
    • F01D25/168F16C17/03F16C17/06F16C32/06F16C33/10F16C33/74
    • The bearing pedestal for the rotating shaft 12 includes journal and axial thrust bearings 16 and 26, respectively. Both of the journal and thrust bearings have passages 70 and 80, respectively, and recesses 74 and 82 in the respective pad faces for flowing high pressure lubricant between the pads and the shaft to displace the shaft and pads relative to one another to minimize the required breakaway torque and metal-to-metal contact. Each thrust bearing includes a plurality of circumferentially spaced pads 26 and lubricant directors 30 between the pads. The lubricant director includes a rib 34 extending generally tangentially and radially outwardly to channel lubricant from a preceding pad to a succeeding pad in the direction of shaft rotation and to channel the lubricant for flow tangentially from the thrust bearing into an annular cavity 39 for return to sump 42. An end seal assembly 40 includes an element 44 having internal and external labyrinth seals 54 and 55 straddling an annular groove 50 opening onto the shaft. An annular recess 48 is provided along the inner surface of element 44 to receive lubricant splashed from the tangential flow and direct it into the cavity. Drain back openings 56 and 59 flow lubricant from the labyrinth seals into the cavity 39.
    • 用于旋转轴12的轴承座分别包括轴颈和轴向推力轴承16和26。 轴颈和推力轴承两者分别具有通道70和80以及各个垫面中的凹部74和82,用于在垫和轴之间流动高压润滑剂,以使轴和垫相对于彼此移位以最小化所需的 分离转矩和金属对金属的接触。 每个推力轴承包括在垫之间的多个周向间隔开的垫片26和润滑剂导向器30。 润滑剂导向器包括大致切向和径向向外延伸的肋34,以将润滑剂从轴向旋转的方向引导到后续垫,并且将润滑剂引导从推力轴承切向地流动到环形空腔39中以返回到 端部密封组件40包括元件44,元件44具有跨接在通向轴上的环形槽50的内部和外部迷宫式密封件54和55。 沿着元件44的内表面设置环形凹部48,以接收从切向流中溅出的润滑剂并将其引导到空腔中。 排水回开口56和59将润滑剂从迷宫式密封件流入空腔39。