由附图1.9所示的传动系统,由V带、单级锥齿轮减速器和单级圆柱齿轮减速器组成。试求: (1)在图中标出各轴上齿轮的旋转方向。 (2)考虑轴Ⅳ上轴承的受力情况,这样设计斜齿轮的螺旋线方向是否合理?为什么?若不合理,在图上标出合理的螺旋线方向。 (3)按合理的螺旋线方向标出斜齿轮所受各分力的方向。 (4)按图示方案设计完成后,若在安装时误用功率相同而转速大2倍的电动机,试分析可能出现的问题(图中负载转矩F W 保持不变)。
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