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大侧压(SP)工作过程中同步控制难以实现,直接影响到了热轧生产的效率和质量,为了找到有效的方法来达到同步控制的目的,提出了主曲柄机构采用一次匀加速和同步机构采用分段加速相结合的方案。该方案首先应用待定参数法对控制机构进行了建模推导,应用绘图法确定了同步机构第一次加速可达到的角速度和角度的选择范围,同时给出了加速度和加速时间的计算方法,然后针对实际生产过程中由于冲击而出现的速降问题提出了相应的补偿方案,最终系统的给出了实现大侧压同步控制的有效方法,并对其进行了优化。宝钢1580热轧大侧压的运行效果表明,该控制方案能够有效的解决同步控制问题,并且在大冲击下能够稳定的进行有效补偿,应用前景十分广阔。
The synchronous control is difficult to be realized during the working process of the large-lateral pressure (SP), which directly affects the efficiency and quality of the hot-rolling production. In order to find an effective method to achieve the synchronous control, the main crank mechanism is proposed to adopt a uniform acceleration and synchronous mechanism Fractional acceleration of a combination of programs. The program first uses the method of undetermined parameters to model the control mechanism. The selection range of angular velocity and angle can be determined by the method of drawing, and the calculation method of acceleration and acceleration time is given. Then Aiming at the drop-down problem caused by impact in the actual production process, a corresponding compensation scheme is proposed. Finally, an effective method to realize large-lateral pressure synchronization control is given and optimized. The operating results of Baosteel 1580 hot rolling large lateral pressure show that this control scheme can effectively solve the synchronous control problem and can effectively and stably compensate under large impact. The application prospect is very broad.