自动门
成都自动门:运行冲击系数
发布时间:2012/12/25

    运行冲击系数。

    当旋转门运行时,偶尔会碰上行人,而且当旋转

门旋转时,主动轮和辅助轮经过上码头接缝时旋转组件自身质量会受到冲
击,即由于上码头轨道不平而使运动的质量产生沿垂直方向的冲击作用。
在考虑这种工作情况的载荷时,应将自重载荷乘以运行冲击系数。
随着运行速度和高度差的增大,运行冲击系数的值将增大。
由于旋转门的速度控制在一定范围内,因此导轨的高度差很重要,
一定要控制在要求的安装差范围内。运行冲击系数一般大约为1.10,导轨
的高度差一般控制在0.2mm以内。
水平惯性载荷:
1)回转惯性载荷。旋转门在运行中启动和制动时,会产生惯性载荷。
因为不同回转半径处的加速度是不同的,因此在确定各集中质量的
水平惯性力时应分别按各质量中心的线加速度值计算。
2)回转离心力。当旋转门旋转时,由于加工过程中的误差,旋转组
件会有偏心,做不到全部质量都对中心轴对称。因此会产生离心力,离心力
按最大偏心计算。
(3)坡度载荷
由于导轨平面安装中水平度的误差会产生坡度,旋转组件运行中爬
坡阶段会多消耗一部分能量,但是,由于制造和安装水平能保证导轨平面的
水平度误差,又因是回转运动结构对称,坡度影响较小,坡度载荷可忽略。
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