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用在现代四辊式板材轧机机架工作辊支承点上的四排锥形滚柱轴承是承受径向和轴向负荷的。各排滚柱之间的负荷分布取决于径向和轴向负荷之比,这种负荷分布本身又决定着轴承的寿命。轴向负荷大,会损坏工作辊轴承,降低轧机的生产率。图1所示为1982年9个月的1700轧机精轧机组各机架工作辊轴承的故障率分布情况。除平整机架Ⅶ外(在精轧机组中工作机架有排列次序编号),认为各机架的负荷相等,但必须指出,轧制速度对轴承的损耗有很大的影响(在精轧机组中,轧制速度从65
The four-row tapered roller bearings used on the work roll support points of the modern four-roll plate mill stand are radially and axially loaded. The load distribution between the rows of rollers depends on the radial and axial load ratio, which in turn determines the bearing life. Axial load, will damage the work roll bearings, reducing mill productivity. Figure 1 shows the failure rate distribution of the work roll bearings of each frame of the 1700 rolling mill finishing mill in 9 months in 1982. In addition to leveling the frame Ⅶ (in the finishing mill in the order of the number of racks), that the load on the rack equal, but it must be pointed out that the rolling speed of the bearing loss has a great impact (in the finishing mill In the rolling speed from 65