Gear material for an enhanced rotorcraft drive system
    3.
    发明授权
    Gear material for an enhanced rotorcraft drive system 失效
    用于增强旋翼航空器驱动系统的齿轮材料

    公开(公告)号:US08758527B2

    公开(公告)日:2014-06-24

    申请号:US11611173

    申请日:2006-12-15

    IPC分类号: C23C8/00 C23C8/22 C21D9/32

    摘要: A surface processing method includes the step of increasing a surface hardness of a metal having a nominal composition that includes about 0.21-0.25 wt % carbon, about 2.9-3.3 wt % chromium, about 11-12 wt % nickel, about 13-14 wt % cobalt, about 1.1-1.3 wt % molybdenum, and a balance of iron from a first hardness to a second hardness. For example, the method is used to produce a surface-hardened component that includes a core section having a first hardness between about 51 HRC and 55 HRC and a case section having a second hardness that is greater than the first hardness.

    摘要翻译: 表面处理方法包括提高具有标称组成的金属的表面硬度的步骤,其包括约0.21-0.25重量%的碳,约2.9-3.3重量%的铬,约11-12重量%的镍,约13-14重量% 约钴,约1.1-1.3重量%的钼,余量的铁由第一硬度至第二硬度。 例如,该方法用于生产表面硬化部件,其包括具有在约51HRC和55HRC之间的第一硬度的芯部分和具有大于第一硬度的第二硬度的壳部分。

    GEAR MATERIAL FOR AN ENHANCED ROTORCRAFT DRIVE SYSTEM
    4.
    发明申请
    GEAR MATERIAL FOR AN ENHANCED ROTORCRAFT DRIVE SYSTEM 失效
    用于增强旋转驱动系统的齿轮材料

    公开(公告)号:US20080145690A1

    公开(公告)日:2008-06-19

    申请号:US11611173

    申请日:2006-12-15

    IPC分类号: B32B5/14 C21D9/32 C23C8/00

    摘要: A surface processing method includes the step of increasing a surface hardness of a metal having a nominal composition that includes about 0.21-0.25 wt % carbon, about 2.9-3.3 wt % chromium, about 11-12 wt % nickel, about 13-14 wt % cobalt, about 1.1-1.3 wt % molybdenum, and a balance of iron from a first hardness to a second hardness. For example, the method is used to produce a surface-hardened component that includes a core section having a first hardness between about 51 HRC and 55 HRC and a case section having a second hardness that is greater than the first hardness.

    摘要翻译: 表面处理方法包括提高具有标称组成的金属的表面硬度的步骤,其包括约0.21-0.25重量%的碳,约2.9-3.3重量%的铬,约11-12重量%的镍,约13-14重量% 约钴,约1.1-1.3重量%的钼,余量的铁由第一硬度至第二硬度。 例如,该方法用于生产表面硬化部件,其包括具有在约51HRC和55HRC之间的第一硬度的芯部分和壳体部分 具有大于第一硬度的第二硬度。

    Drive train assembly for a rotor assembly having ducted, coaxial
counter-rotating rotors
    5.
    发明授权
    Drive train assembly for a rotor assembly having ducted, coaxial counter-rotating rotors 失效
    用于转子组件的传动系组件,其具有导管的同轴反转转子

    公开(公告)号:US5226350A

    公开(公告)日:1993-07-13

    申请号:US903066

    申请日:1992-06-22

    摘要: A drive train assembly for a rotor assembly having ducted, coaxial counter-rotating rotors includes a sprag clutch, an engine coupling subassembly, a transmission coupling subassembly, and a drive shaft mechanically interconnected at the ends thereof to the engine and transmission coupling subassemblies, respectively. The drive train assembly is design optimized to maximize the functional capability of the sprag clutch, the engine coupling subassembly including an external crown spline coupling, internal spline coupling combination that is mounted in combination with the sprag clutch so that loads transmitted through the external crown spline coupling react through the center of the sprag clutch. Further, the drive train assembly is design optimized to maximize allowable axial, angular, and/or parallel misalignments between the engine and the rotor assembly as a result of the mechanical interconnection of the drive shaft to the external crown spline coupling, internal spline coupling combination of the engine coupling subassembly and to the external crown spline coupling, gear spline coupling combination of the transmission coupling subassembly. The drive shaft is configured as a torque tube having inside and outside diameters sized to provide torsionally soft drive shaft such that the drive shaft functions as a torsional spring to isolate spline coupling teeth, the sprag clutch, transmission gearing, and the rotor assembly from vibratory torque generated by the engine.

    摘要翻译: 用于具有管道式同轴反向旋转转子的转子组件的传动系组件包括分离离合器,发动机联接子组件,变速器联轴器组件和在其端部机械相互连接到发动机和变速器联轴器组件的驱动轴 。 传动系组件被设计优化,以最大限度地发挥起落架离合器的功能能力,发动机联轴器组件包括外部花键联轴器,内部花键联接组合,与楔形离合器组合安装,使得通过外部冠状花键传递的载荷 联轴器通过楔形离合器的中心反作用。 此外,传动系组件被设计优化以使得由于驱动轴与外冠花键联轴器,内花键联接组合的机械互连而使发动机和转子组件之间的允许的轴向,角度和/或平行的不对准最大化 的发动机联轴器组件和外部花键联轴器,齿轮花键联轴器组合的变速器联轴器组件。 驱动轴被构造为具有内径和外径的扭矩管,扭矩管的尺寸设置成提供扭转软的驱动轴,使得驱动轴用作扭转弹簧以将花键联接齿,楔形离合器,传动齿轮传动装置和转子组件从振动 发动机产生的转矩。