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    • 54. 发明授权
    • Auto-adjust apparatus for a vibration isolation system
    • 用于隔振系统的自动调节装置
    • US5794909A
    • 1998-08-18
    • US714412
    • 1996-09-16
    • David L. PlatusDonald A. Durran
    • David L. PlatusDonald A. Durran
    • F16F15/02F16F15/067F16M13/00
    • F16F15/067F16F15/02F16F2228/06
    • An auto-adjust apparatus adjusts a vibration isolator to help accommodate varying weight loads and other effects which can cause the isolator to go out of adjustment, such as variations caused by changes in ambient temperature and creep of the isolator's main support spring. A small secondary spring is positioned in parallel with the main support spring of the isolator and is precompressed such that its compression increases the load on the main support spring by a small amount. An increase in the compression of this secondary spring will cause an increase in the load on the main support spring. Similarly, a decrease in the compression on this secondary spring will cause a decrease in the load on the main support spring. Sensors for sensing a deviation in the equilibrium position of the object relative to the base from its optimum equilibrium position are provided and generate an electrical signal indicating such deviations. A control system for correcting the deviation of the equilibrium position of the object from the optimum equilibrium position adjusts the compression on the secondary spring as may be required.
    • 自动调节装置调节隔振器以帮助适应不同的重量负载和其他可能导致隔离器失调的影响,例如由环境温度变化和隔离器主支撑弹簧蠕变引起的变化。 小型二次弹簧与隔离器的主支撑弹簧平行定位,并被预压缩,使得其压缩使主支撑弹簧上的负载增加少量。 该次级弹簧的压缩增加将导致主支撑弹簧上的负载增加。 类似地,在该次级弹簧上的压缩减小将导致主支撑弹簧上的负载减小。 提供用于感测物体相对于基座的平衡位置与其最佳平衡位置的偏差的传感器,并产生指示这种偏差的电信号。 用于校正物体的平衡位置与最佳平衡位置的偏差的控制系统根据需要调节次级弹簧上的压缩。
    • 55. 发明授权
    • Vibration attenuation assembly with venting passageway
    • 具有排气通道的减振组件
    • US5237871A
    • 1993-08-24
    • US889966
    • 1992-05-29
    • Frederick H. HendersonRoy D. Whitehead
    • Frederick H. HendersonRoy D. Whitehead
    • F16F15/023F16F15/06F16F15/067G01P15/08
    • F16F15/023F16F15/06F16F15/067G01P15/08
    • The present invention features a vibration attenuation assembly designed for the protection of single axis instruments such as accelerometers. The assembly includes an inner cylinder housing one or more single axis accelerometers co-aligned with a principle axis of the cylinder. The inner cylinder is suspended by three or more equally spaced springs at each end. The springs also function as electrical conductors for transmitting power and signals to the accelerometer. The inner cylinder is longitudinally shiftable within the outer cylinder and a main fluid cavity exists between the exterior surface of the inner cylinder and the inner surface of the outer cylinder. A rigid outer cap is provided at both ends of the outer cylinder and a rigid inner cap is provided at both ends of the inner cylinder. A damping fluid end cavity is provided between an end cap of the inner cylinder and an adjacent end cap of the outer cylinder and at least one longitudinally extending vent passageway, formed either on the inner or outer cylinder, opens into the damping fluid end cavity. The vent passageway or passageways extend the longitudinal length of the inner cylinder when they are integrally formed with the inner cylinder.
    • 本发明的特征在于设计用于保护单轴仪器如加速度计的振动衰减组件。 组件包括容纳与气缸的主轴共同对准的一个或多个单轴加速度计的内筒。 内筒在每一端由三个或更多等间距的弹簧悬挂。 弹簧还用作用于将功率和信号传输到加速度计的电导体。 内筒可以在外筒内纵向移位,并且在内筒的外表面和外筒的内表面之间存在主流体腔。 在外筒的两端设有刚性的外盖,在内筒的两端设有刚性的内盖。 阻尼流体端腔设置在内筒的端盖和外筒的相邻端盖之间,并且形成在内筒或外筒上的至少一个纵向延伸的通气通道通向阻尼流体端腔。 排气通道或通道在与内筒一体形成时延伸内筒的纵向长度。