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    • 5. 发明专利
    • Rotary shaft flexural vibration damping device
    • 旋转轴柔性振动阻尼装置
    • JP2012042052A
    • 2012-03-01
    • JP2011177207
    • 2011-08-12
    • Agustawestland Spaアグスタウェストランド ソチェタ ペル アツィオニ
    • GASPARINI GIUSEPPEGRISOSTOLO FRANCESCOSCALTRITTI DIEGO
    • F16F15/02F16C3/02F16F15/06
    • F16F15/067F16F7/02Y10T464/50
    • PROBLEM TO BE SOLVED: To improve a device for damping flexural vibration of a shaft.SOLUTION: A damping device for damping flexural vibration of a shaft rotating about a first axis, the device having: a supporting body; and a member, which defines an annular opening fitted through with the shaft, and is movable, with respect to the supporting body and radially with respect to the first axis, between a first and a second position when the shaft flexes radially with respect to the first axis. The first member is set to the first position, and the opening is traversed loosely by the shaft when the rotation speed of the shaft is at least within a first range; the first member is set to the second position during the use, and the profile of the opening cooperates with the shaft during the use, when the rotation speed of the shaft is within a second range including critical speed of the shaft; the damping device has a first elastic means interposed between the supporting body and the member, and a pin integrated with the first member and movable along a radial direction with respect to the first axis; and the first elastic means is disposed between the pin and the supporting body.
    • 要解决的问题:改进用于减轻轴的挠曲振动的装置。 解决方案:一种用于减轻围绕第一轴线旋转的轴的挠曲振动的阻尼装置,该装置具有:支撑体; 以及构件,其限定与所述轴配合的环形开口,并且当所述轴相对于所述支撑体径向相对于所述第一和第二位置径向地弯曲时,所述环形开口相对于所述支撑体可相对于所述第一轴线可径向移动。 第一轴。 当轴的旋转速度至少在第一范围内时,第一构件被设定在第一位置,并且开口被轴松动地移动; 第一构件在使用期间设定在第二位置,并且当轴的旋转速度在包括轴的临界速度的第二范围内时,开口的轮廓在使用期间与轴配合; 所述阻尼装置具有插入在所述支撑体和所述构件之间的第一弹性装置和与所述第一构件一体化并且可相对于所述第一轴线沿径向方向移动的销; 并且第一弹性装置设置在销和支撑体之间。 版权所有(C)2012,JPO&INPIT