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1. 发明授权

US5767381A Centrifuge model test apparatus 失效
标题翻译：离心机型号试验仪
公开(公告)号：US5767381A
公开(公告)日：1998-06-16
申请号：US794230
申请日：1997-01-30
申请人： Takao Konno , Masaharu Sugano , Yuji Tadano
发明人： Takao Konno , Masaharu Sugano , Yuji Tadano
IPC分类号： B04B5/04 , G01M99/00 , G01N3/00 , G01N3/16 , G02L25/00
CPC分类号： G01M99/004 , B04B5/0421 , G01N3/165
摘要： A centrifuge model test apparatus is accommodated in a pit, and comprises a vertical rotary shaft, a rotary arm horizontally secured to the rotary shaft, a swing bucket suspended from and supported at a pin on the rotary arm and located near the end thereof so as to be movable in the radial direction of the rotary arm or fixed, and a drive unit for rotating the rotary shaft. As the drive unit is driven and the rotational speed of the rotary shaft increases, the swing bucket is raised together with a sample contained therein due to the centrifugal force with the pin as a center and is placed at a nearly horizontal position when a predetermined rotational speed is reached. A partitioning plate provided under the swing bucket is moved upwards at the time when the swing bucket is raised, and the volume and surface area of the space defined by the partitioning plate and the pit reduce, and the frictional force due to the resistance of the air decreases. This makes it possible to increase the radius of the rotary arm or the load weight on the sample without increasing the driving force. As the rotary arm is made of high damping and easily welded material, vibration caused by resonance can be reduced when the testing apparatus of the centrifuge model is operated with a vibration generating device installed in the testing apparatus.
摘要翻译：离心机型式试验装置容纳在凹坑中，包括垂直旋转轴，水平固定在旋转轴上的旋转臂，悬挂在旋转臂上的销上并位于其端部附近的摆动铲斗，以便能够沿旋转臂的径向移动或固定，以及用于旋转旋转轴的驱动单元。当驱动单元被驱动并且旋转轴的旋转速度增加时，由于作为中心的离心力，摆动斗与其中容纳在其中的样品一起升高，并且当预定旋转时，摆动铲斗被放置在接近水平的位置速度达到。设置在摆动铲斗下方的分隔板在摆动升起时向上移动，并且由分隔板和凹坑限定的空间的体积和表面积减小，并且由于阻力的摩擦力空气减少。这使得可以增大旋转臂的半径或样品上的负载重量而不增加驱动力。由于旋转臂由高阻尼和容易焊接的材料制成，当离心机型号的测试装置用安装在测试装置中的振动发生装置进行操作时，可以减少由共振引起的振动。

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