在理论分析和试验研究的基础上，找出地下卷取机助卷辊冲击负荷过大的主要原因。
Based on theoretical analyses and experiments, main reasons have been discovered that cause excessive impact load on the wrapper roll of down coiler.
通过对卷取机助卷辊的AJC动作及控制的分析，设计出了AJC控制系统，并对其进行了建模及仿真分析、模拟加载验证。
By analyzing wrapper roll's AJC action and control, the AJC system is designed and its mathematic modeling, emulation analysis and analogue loading verification are conducted.
为准确反馈卷取机助卷辊支臂角位移，支臂与轴必须牢固联接。
The wrapper arm with the fulcrum shaft in coilers must be fitted firmly to feedback precisely the angle movement of the wrapper arm.
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