Impact micro-positioning actuator
    1.
    发明授权
    Impact micro-positioning actuator 失效
    冲击微定位执行机构

    公开(公告)号:US06983667B2

    公开(公告)日:2006-01-10

    申请号:US10202431

    申请日:2002-07-23

    IPC分类号: F16H25/20

    摘要: An impact micro-positioning actuator. In one aspect of the invention, a threaded shaft is threadably received in a nut and the nut is impacted by an impacting device, causing the nut first to rotate relative to the shaft by slipping as a result of shaft inertia and subsequently to stick to the shaft as a result of the frictional force therebetween. The nut is returned to its initial position by a return force provided by a return mechanism after impact. The micro-positioning actuator is further improved by controlling at least one and preferably all of the following: the friction, the impact provided by the impacting device, the return force provided by the return mechanism, and the inertia of the shaft. In another aspect of the invention, a threaded shaft is threadably received in a nut and the shaft is impacted by an impacting device, causing the shaft to rotate relative to the nut.

    摘要翻译: 冲击微定位致动器。 在本发明的一个方面中,螺纹轴被螺纹地容纳在螺母中,并且螺母被冲击装置冲击,从而使螺母首先通过由于轴的惯性而滑动而相对于轴旋转,随后坚持 由于它们之间的摩擦力的结果。 螺母在冲击后由返回机构提供的返回力返回到其初始位置。 通过控制至少一个并且优选地全部以下内容来进一步改善微定位致动器:摩擦,冲击装置提供的冲击,由返回机构提供的返回力以及轴的惯性。 在本发明的另一方面,螺纹轴被螺纹地容纳在螺母中,并且轴被冲击装置冲击,导致轴相对于螺母旋转。

    Elastomeric bearing for helicopter rotor
    2.
    发明授权
    Elastomeric bearing for helicopter rotor 失效
    直升机转子弹性轴承

    公开(公告)号:US4142833A

    公开(公告)日:1979-03-06

    申请号:US785995

    申请日:1977-04-08

    CPC分类号: B64C27/35 B64C27/48

    摘要: An elastomeric bearing for a helicopter rotor in which the laminates of the bearing are shaped and positioned so that the center of hydrostatic pressure generated in each elastomer laminate and the cross-sectional center of gravity of each metal laminate are in alignment so that the integrated load vectors reacted through the metal and elastomer laminates of the bearing in imparting blade centrifugal loads to the hub therethrough are substantially in alignment to thereby prevent the creating of eccentric internal moments and hence avoid life reducing bending and hoop stresses in the metal laminates and unnecessarily high hydrostatic pressures in the elastomer laminates.

    摘要翻译: 一种用于直升机转子的弹性体轴承,其中轴承的层压体成形和定位,使得在每个弹性体层压板中产生的静水压力中心和每个金属层压板的横截面重心对齐,使得一体化载荷 通过轴承的金属和弹性体层压体反应的载体在将叶片离心载荷赋予到其中的毂处基本上对准,从而防止产生偏心内部力矩,并因此避免了减少金属层压板中的弯曲和环向应力的生命,并且不必要地具有高的静水压 弹性体层压板中的压力。