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一、前言 随着科学技术的不断发展,高炉生产日趋现代化,其中高炉上料系统的高度自动化即是重要标志之一。大钟平衡杆极限开关装置是高炉上料程序自动化系统中的一个环节,其作用是将反映大钟开闭位置的信号传递到程序控制系统,使卷扬、探尺等系统按工艺程序正常工作,保证高炉可靠上料。 1966年至1969年期间,我厂1号、2号高炉大钟平衡杆极限开关装置是通过链轮传动机构将大钟平衡杆的运动联系于主令控制器。机构运行初期,能可靠动作,但经短时期使用后,由于链子链轮积灰和受潮气侵
I. Introduction With the continuous development of science and technology, blast furnace production is becoming more and more modernized. Among them, the high degree of automation of the blast furnace feeding system is one of the important symbols. The balance pole limit switch device is a part of blast furnace loading automation system. Its function is to transmit the signal reflecting the opening and closing position of the large bell to the program control system so that the system such as winch and feeler can work normally according to the process program , To ensure reliable loading blast furnace. From 1966 to 1969, I plant No. 1, No. 2 blast furnace bell balance pole limit switch device is linked through the sprocket mechanism movement of the balance pole with the master controller. The initial operation of the organization, reliable action, but after a short period of use, due to chain sprocket fouling and moisture invasion