翰堂镇EASTOUR定速电机DMKE调速马达KLH60-05
1 步距角:指的理论值或平均值, 步距角:指的理论值或平均值。即每给一个脉冲信号,电动机转子所转角度的理论值。
2 . 精度 直接用机械角度或步距的百分数来表示。步距误差和累积误差是两个概念,通常指的步距误差或累积误差。数值上也就不一样,这就是说精度的定义没有完全统一起来 . 从使用的角度看,对多数情况来说,用累积误差来衡量精度比较方便 . 累积误差,指从任意位置开始,经过任意步之间,角位移误差的值 . 由于步进电机转过一圈以后,转子的运动有重复性,所以精度的定义,可以认为是一圈范围内,任意步之间转子角位移误差的值 .
翰堂镇EASTOUR定速电机DMKE调速马达KLH60-05
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翰堂镇EASTOUR定速电机DMKE调速马达KLH60-05
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翰堂镇EASTOUR定速电机DMKE调速马达KLH60-05
在作上述测量时,应该在精密轴承的外圆和内孔上,以及轴和座孔的对应表面上,在靠近装配倒角的两侧,分别作出能示明偏差方向的两组标记,以便在实际装配时,使相配两方的偏差对准同一方位,这样在装配后,双方的偏差得以部分抵消。作出两组定向标志的目的,在于对偏差的补偿可以综合考虑,即使两端支承各自的旋转精度有所提高,又使两支承间的座孔和两端轴颈的同轴度误差得到部分消除。对配合表面实行表面强化措施,如喷砂处理,用直径略大的精密塞柱插塞一次内孔等,都有利于提高配合精度。
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翰堂镇EASTOUR定速电机DMKE调速马达KLH60-05
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