The invention relates to a guide wheel variable stiffness design method and a variable stiffness guide wheel, a point-to-surface contact mode is formed between an elastic layer and a guide rail by adjusting the shape of the free molded surface of the elastic layer of the guide wheel so that the initial stiffness is small when the elastic layer is just contacted with the guide rail, and then is gradually increased, and the guide wheel has a variable stiffness characteristic. The flanges are arranged on the two sides of the hub to form the grooves, and the elastic layers are embedded into the grooves so that rigidity inflection points are formed after the grooves are filled with the elastic layers, the rigidity is further improved, and radial deformation is controlled. Meanwhile, the flange also plays a role of hard backstop so as to control the maximum radial deformation of the elastic layer and prevent the vehicle body from deviating from the normal operation position. In addition, the flanges can guarantee that the elastic layer does not fall off even if degumming, and potential safety hazards caused by degumming are avoided. The variable stiffness guide wheel is small in required space, low in cost and easy and convenient to install and maintain.
本发明涉及一种导向轮变刚度设计方法及变刚度导向轮:通过调整导向轮的弹性层的自由型面形状,使得弹性层与导轨形成由点到面的接触方式,使得弹性层与导轨刚接触时的初始刚度小,然后逐渐增大,使得导向轮具有变刚度特性。通过在轮毂两侧设置凸缘形成凹槽,弹性层嵌入凹槽内,使得弹性层填满凹槽后,形成刚度拐点,进一步增大刚度,以控制径向变形。同时凸缘还起到硬止挡的作用,以控制弹性层的最大径向变形,避免车体偏离正常运行的位置。此外凸缘还能保证弹性层即使脱胶也不会脱落,避免由此造成的安全隐患。这种变刚度导向轮所需的空间小、成本低、安装维修简便。
Guide wheel variable stiffness design method and variable stiffness guide wheel
一种导向轮变刚度设计方法及变刚度导向轮
2021-08-31
Patent
Elektronische Ressource
Chinesisch
IPC: | B60B VEHICLE WHEELS , Räder für Fahrzeuge |
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