Blade-mounted centrifugal pendulum
    1.
    发明授权
    Blade-mounted centrifugal pendulum 失效
    刀片式离心摆

    公开(公告)号:US4239455A

    公开(公告)日:1980-12-16

    申请号:US941134

    申请日:1978-09-11

    摘要: A helicopter having a multiblade main rotor lift unit includes a plurality of pendulus mass units (48,60) mounted to oscillate in the plane of the rotor. The mass units (48,60) are connected to a rotatable shaft (24) which passes through a blade grip (14) for each blade (16). Vibrations generated in the plane of the rotor system are damped by the oscillating pendulums (22) which are tuned to minimize the vibrations in the lift unit.

    摘要翻译: 具有多叶片主转子提升单元的直升机包括安装成在转子的平面中振荡的多个摆锤质量单元(48,60)。 质量单元(48,60)连接到可旋转的轴(24)上,该轴通过用于每个叶片(16)的刀片(14)。 在转子系统的平面中产生的振动被振荡摆锤(22)阻尼,振荡摆动器被调谐以最小化提升单元中的振动。

    Rotor blade out-of-plane centrifugal pendulums
    2.
    发明授权
    Rotor blade out-of-plane centrifugal pendulums 失效
    转子叶片外平面离心摆

    公开(公告)号:US4239456A

    公开(公告)日:1980-12-16

    申请号:US37658

    申请日:1979-05-10

    IPC分类号: B64C27/00 B64C27/32

    摘要: A helicopter having a main rotor lift unit includes a plurality of pendulus mass units (44, 46) mounted to oscillate in a plane perpendicular to the chord plane of the rotor blade (10). The mass units (44, 46) are connected to a rotatable shaft (28) which passes through or adjacent the blade grip (12) for each blade (10). Hubshear vibrations generated parallel to the axis of the rotor mast (18) are damped by the oscillating mass units (44, 46) which are tuned to minimize the vibrations transmitted from the lift unit to the fuselage.

    摘要翻译: 具有主转子提升单元的直升机包括安装成在垂直于转子叶片(10)的弦平面的平面中振荡的多个摆锤质量单元(44,46)。 质量单元(44,46)连接到可绕每个叶片(10)穿过或邻近叶片把手(12)的可旋转轴(28)。 平行于转子桅杆(18)的轴线产生的轮毂振动由振荡质量单元(44,46)阻尼,振荡质量单元被调谐以最小化从提升单元传递到机身的振动。

    Constant velocity elastomeric joint
    4.
    发明授权
    Constant velocity elastomeric joint 失效
    恒速弹性接头

    公开(公告)号:US5215502A

    公开(公告)日:1993-06-01

    申请号:US91833

    申请日:1987-09-01

    摘要: A constant velocity joint (10) is provided specifically for connecting a yoke (14) to a mast (12) in a helicopter and more generally (200) for interconnecting a first shaft (202) to a second shaft (204) for bidirectional drive. The constant velocity joint employs a carrier (40, 218) which is formed with a series of apertures for receiving elastomeric bearing assemblies (42, 80, 220). The elastomeric bearing assemblies are provided with a spherical elastomeric bearing (60) and a cylindrical elastomeric bearing (48). Certain of the elastomeric bearing assemblies connect the carrier to one of the rotating members while the remaining elastomeric bearing assemblies connect the other rotating member to the carrier. The axis of symmetry (67) of the carrier always bisects the angle of misalignment between the two rotating shafts or members to assure that a constant velocity joint is achieved.

    摘要翻译: 一个等速万向节(10)专门用于将一个轭(14)连接到直升机中的一个桅杆(12)上,更一般地,(200)用于将第一轴(202)与第二轴(204)相互连接,用于双向驱动 。 等速万向节采用一个载体(40,218),该载体形成有一系列孔,用于接收弹性轴承组件(42,48,220)。 弹性体轴承组件设置有球形弹性轴承(60)和圆柱形弹性轴承(48)。 某些弹性轴承组件将载体连接到其中一个旋转构件,而其余弹性体轴承组件将另一个旋转构件连接到载体。 载体的对称轴(67)总是将两个旋转轴或构件之间的未对准角平分,以确保实现等速度接头。

    Constant velocity elastomeric bearing joint
    5.
    发明授权
    Constant velocity elastomeric bearing joint 失效
    恒速弹性轴承接头

    公开(公告)号:US4734081A

    公开(公告)日:1988-03-29

    申请号:US6687

    申请日:1987-01-23

    摘要: A constant velocity joint (200) for interconnecting a first shaft (202) to a second shaft (204) for bidirectional drive is provided. The constant velocity joint employs a carrier (218) which is formed with a series of apertures for receiving elastomeric bearing assemblies (220). The elastomeric bearing assemblies are provided with a spherical elastomeric bearing (60) and a cylindrical elastomeric bearing (48). Certain of the elastomeric bearing assemblies connect the carrier to one of the rotated members while the remaining elastomeric bearing assemblies connect the other rotating member to the carrier. The axis of symmetry of the carrier (218) will always bisect the angle of misalignment between the two rotating shafts to assure that a constant velocity joint is achieved.

    摘要翻译: 提供了用于将第一轴(202)与用于双向驱动的第二轴(204)互连的等速万向节(200)。 等速万向节采用托架(218),托架(218)形成有一系列孔,用于接收弹性轴承组件(220)。 弹性体轴承组件设置有球形弹性轴承(60)和圆柱形弹性轴承(48)。 某些弹性轴承组件将承载件连接到其中一个旋转的构件,而其余的弹性体轴承组件将另一个旋转构件连接到载体。 载体(218)的对称轴将总是将两个旋转轴之间的未对准角平分,以确保实现等速度接头。

    Constant velocity elastomeric bearing joint
    6.
    发明授权
    Constant velocity elastomeric bearing joint 失效
    恒速弹性轴承接头

    公开(公告)号:US4729753A

    公开(公告)日:1988-03-08

    申请号:US794800

    申请日:1985-11-04

    摘要: A constant velocity joint (10) is provided specifically for connecting a yoke (14) to a mast (12) in a helicopter and more generally (200) for interconnecting a first shaft (202) to a second shaft (204) for bidirectional drive. The constant velocity joint employs a carrier (40, 218) which is formed with a series of apertures for receiving elastomeric bearing assemblies (42, 80, 220). The elastomeric bearing assemblies are provided with a spherical elastomeric bearing (60) and a cylindrical elastomeric bearing (48). Certain of the elastomeric bearing assemblies connect the carrier to one of the rotating members while the remaining elastomeric bearing assemblies connect the other rotating member to the carrier. The axis of symmetry (67) of the carrier always bisects the angle of misalignment between the two rotating shafts or members to assure that a constant velocity joint is achieved.

    摘要翻译: 一个等速万向节(10)专门用于将一个轭(14)连接到直升机中的一个桅杆(12)上,更一般地,(200)用于将第一轴(202)与第二轴(204)相互连接,用于双向驱动 。 等速万向节采用一个载体(40,218),该载体形成有一系列孔,用于接收弹性轴承组件(42,48,220)。 弹性体轴承组件设置有球形弹性轴承(60)和圆柱形弹性轴承(48)。 某些弹性轴承组件将载体连接到其中一个旋转构件,而其余弹性体轴承组件将另一个旋转构件连接到载体。 载体的对称轴(67)总是将两个旋转轴或构件之间的未对准角平分,以确保实现等速度接头。

    Prop rotor hub
    8.
    发明授权
    Prop rotor hub 有权
    主旋翼毂

    公开(公告)号:US06296444B1

    公开(公告)日:2001-10-02

    申请号:US09410640

    申请日:1999-10-01

    IPC分类号: B64C2733

    CPC分类号: B64C27/32 Y10S464/904

    摘要: A prop rotor hub includes a constant velocity joint in the same plane as a prop blade yoke. Torque is transmitted from a shaft to the blades through the CV joint, hub plates attached to the CV joint, and the yoke, which is attached to the hub plates. Providing all elements in a substantially planar arrangement results in a hub assembly which has significantly less height than a traditional design. The hub itself is in-plane with the yoke, resulting in a more efficient torque transmission from the mast to the rotor.

    摘要翻译: 支柱转子毂包括与支撑叶片轭相同的平面中的等速接头。 扭矩通过CV接头,连接到CV接头的轮毂板和连接到轮毂板的轭架从轴传递到叶片。 将所有元件提供在基本上平面的布置中,导致轮毂组件具有比传统设计显着更小的高度。 轮毂本身与轭架在一起,导致从桅杆到转子的更有效的扭矩传递。