粗轧机主轴螺栓紧固方式力能大小分析及紧固效果提高.pdfVIP

粗轧机主轴螺栓紧固方式力能大小分析及紧固效果提高 尼 睿 （宝山钢铁股份有限公司，上海 201900 ） 摘 要 粗轧机作为宝钢 5 米宽厚板主线关键设备，在安装调试及管理维护中，均遇到了现有紧固工具无法实现主 轴连接螺栓设计要求的紧固力矩范围的问题。因此，我们分别按照 SN 标准和 GB 标准，对达到设计要求的紧固力 矩或者预紧力进行了详尽的计算和校核，分析两种标准下计算结果差异的原因，最后采用了计算结果一致的预拉伸 方案。经过综合考虑，选择了一款拉伸器，在随后的主轴连接螺栓紧固项目实施中，顺利的达到了设计要求范围， 消除了潜在的安全隐患，确保了轧机能力的正常发挥，同时我们也掌握了主轴螺栓的紧固要点及相关参数，为今后 实施类似螺栓紧固提供了有益参考。 关键词 轧机 主轴 螺栓 紧固 力矩 Analysis of the Fixing Way and Capability of Flange Bolts of Main Drive Spindle of Roughing Mill Ni Rui (Baoshan Iron Steel Co., Ltd., Shanghai, 201900) Abstract Roughing Mill is the key equipment of the main product line in Heavy Plate Mill. We meet some difficulty that we cant reach the design demand range of torque or force because without the necessary pulling or turning tools when install and maintenance the equipment. Then, We go to calculate a lot of parameters of the flange bolts of main drive spindle when the torque or force reach the design demand range respectively with SN standard and GB. We analysis the difference between the two results, choose a pretensioning method because the two results are the same as each other. We choose a pulling tool after enough consideration. And we reach successfully the design demand range of force in the next maintenance project of the Rough Mill. It means that we have solved the problem which disturbed us a long term, in the mean while, it make sure that the Rough Mill can do its best in the work. And also, we have obtain a lot of parameters about the bolt of main drive spindle. It is very useful for tightening bolts for future work or projects. Key Words mill, main drive spindle, bolts, tighten, torque 1 引言 粗轧机属于宽厚板轧机完善改造工程重点建设项