The invention provides a coding overspeed protection method. The coding overspeed protection method comprises the following steps that an absolute value encoder is arranged on a winding drum; the instantaneous speed is calculated through the displacement distance and time obtained by the absolute value encoder; comparing the obtained instantaneous speed with a normal operation speed, and judging whether the speed is overspeed or not through a controller; and the frequency converter sends a shutdown instruction and controls the band-type brake to brake and lock. By means of the method, the situations that the coke tank is suddenly stalled and slides to a coke quenching car tractor, consequently, the coke tank, a transverse moving rack, a large rope of the elevator and the like of the elevator are damaged, for example, serious production accidents and economic losses which delay production are caused when the coke tank freely falls to the ground, and personnel injuries are easily caused can be effectively reduced.
本发明提供一种一种编码超速保护方法,包括以下步骤:在卷筒上设置绝对值编码器;通过所述绝对值编码器获取的位移距离与时间计算瞬时速度;将获取的瞬时速度与正常运行速度进行比较,通过控制器判断是否超速;变频器发出停机指令,变频器控制抱闸进行制动抱死。本发明的方法能够有效的减少提升焦罐突然失速,焦罐溜至熄焦车牵引车上,造成提升机的焦罐、横移齿条、提升机大绳等损坏,如自由落体下落到地面,会造成严重的生产事故,耽误生产的经济损失以外,还极易造成人员伤害。
Coding overspeed protection method
一种编码超速保护方法
2024-03-05
Patent
Electronic Resource
Chinese
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