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1．骨料提升机故障其骨料提升机在使用过程中发生了断轴现象。该故障的原因是,骨料提升机的箱体安装不正确。安装时忽视了提升机的垂直度要求,使提升机的传动链轮受力不一致,因而两根链条的张紧度不同,而在调整时又只是从链条的松紧度方面考虑,哪边链条松就紧哪边,虽然松的链条张紧了,但因上下同一位置的两个链轮不平行,致使料斗受力不均, 运行中产生振动,使链轮和轴的接触部位产生了一个扭矩,造成提升机轴因疲劳强度超过极限而断裂。为此,安装过程中应保证骨料提升机上端轴的水平; 链轮到箱体的距离均等;根据骨料提升机上端轴与链轮的装配要求确定下端轴的安装尺寸。
1. Aggregate hoist failure Aggregate hoist in the course of the occurrence of a broken shaft phenomenon. The reason for the failure is that the body of the aggregate hoist is not properly installed. Installation ignore the hoist verticality requirements, so that the hoist drive sprocket inconsistent with the force, so the tension of the two different chains, but only in the adjustment of the chain from the tightness of the consideration, which side chain loose On the tight side, although the loose chain tensioned, but because of the same position up and down the two sprockets are not parallel, resulting in uneven force hopper, vibration during operation, the sprocket and the shaft contact part of a torque , Causing the lift shaft to break due to the fatigue strength exceeding the limit. To this end, the installation process should ensure the level of the upper shaft of the aggregate hoist; the distance between the sprocket and the box is equal; according to the assembling requirements of the upper shaft and the sprocket of the aggregate hoisting machine, the installation dimension of the lower shaft is determined.