位置与转矩平衡控制在芯棒限动齿条中的应用

Application of Position and Torque Balance Control on Retained Rack of Mandrel

包钢钢管公司Φ460 mm无缝钢管生产线,采用世界先进的PQF连轧技术,连轧机组采用芯棒限动齿条系统,在限动齿条运动过程中,要有快速的速度响应,停止时位置必须准确,在控制上面,采用对不同周期位置给定不同速度的位置控制模式,来保证生产和控制的可靠要求。转矩平衡控制能有效解决电机之间推拉受力,负载不均衡的现象。

The production line ofΦ460 mm seamless steel tube in Steel Tube Co.of Baotou Steel adopts the world advanced PQF continuous rolling technology and the continuous rolling mill is with the retained rack of mandrel system.In the movement process of retained rack of mandrel,the fast speed response is required and the position must be accurate when it stops.For control,the position control mode of different positions of periods with different speeds is adopted to ensure reliable requirements for production and control.The torque balance control can effectively solve the problems of push-pull force and unbalanced load between motors.