倒棱機鋼管托架電氣控制系統(tǒng)的改進

Modification of Electrical Control System for Steel Pipe Support of Chamfering Machine

摘要: 渤海石油裝備制造有限公司巨龍鋼管有限公司原有的倒棱機鋼管托架在升降過程中容易造成鋼管升降不平衡,且無法精確控制不同規(guī)格鋼管升起的最終位置,嚴重影響了倒棱機的工作效率。采用將其電氣控制系統(tǒng)的電磁閥換成比例閥,并在PLC從站中新增2個高速計數(shù)模塊(FM)和1個模擬量輸出模塊(AO)的方法,應(yīng)用觸摸屏(Siemens MP377)等先進的控制技術(shù),使問題得到了有效的解決。

Abstract: The steel pipe support of the chamfering machine of Julong Steel Pipe Co.,Ltd. a subsidiary of CNPC Bohai Equipment Manufacturing Co.,Ltd. frequently encountered with such a problem,i. e.,during the lifting operation,the pipe's upward movement was unleveled,and thus the final up-positions of pipes with different sizes were hard to be precisely controlled,and consequentially the machining efficiency of the chamfering machine was tremendously reduced. Addressing this problem,the electrical control system for the pipe support of the chamfering machine is modified by means of a number of advanced control techniques,including replacing the original solenoid valves with proportional valves,adding 2 hi-speed counting modules (FM) and 1 analog quantity output module (AO) to the PLC substation,and using the (Siemens MP377) touch screen,etc. As a result,the said problem is successfully fixed.