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在生产实践中,我矿曾把原来的平键联接改为花键联接;也曾把花键联接改为平键联,同样都收到了良好的效果。 (一)平键改花键的实践 1.现象。我矿开沟生产中,采用W1002挖掘机,推压轴和推压齿轮联接原系采用三头平键联接。对于我矿开沟的具体条件(爆破质量差,设备严重超负荷),大约一年时间曾损坏4条推压轴(我们从原制造厂购进的整套正铲作业装置,此轴寿命约一年另三个月,改用自装配的轴和齿轮,其轴寿命就只有三个月了)。我们把推压轴改为六齿花键联接后(使花键轴的外圆尺寸与原设计齿轮平键齿槽的外圆直径相近),结果一根轴使用了四年以上。
In production practice, my mine once put the original flat key connection to spline connection; also spline connection to flat key connection, also received good results. (A) flat key change spline practice 1. phenomenon. I ditch mine production, the use of W1002 excavators, push the shaft and push the original gear with three flat-key connection. For the specific conditions of mine ditches (poor blasting quality and heavy equipment overload), about 4 axes were damaged in approximately one year (the whole set of front shovel operation equipment we purchased from the original manufacturer had a life of about one year Another three months, switch to self-assembly of the shaft and gear, the shaft life is only three months). We put the push shaft into a six-spline spline connection (so that the spline shaft outer diameter of the original design gear flat keyway cylindrical diameter similar), the results of a shaft used for more than four years.