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我厂为油田生产各种型号的游梁式抽油机。连杆是抽油机关键部件之一,它由上连杆头、下连杆头、连杆管子三部分组成。前两部分材质为ZG35Ⅱ,后一部分为20号无缝钢管。由于连杆较长,一般都为3～6m,上、下连杆头加工精度及位置精度要求高,制造上采用连杆组焊后整体加工,难度很大。因此,我厂采用先分别加工各零件,再进行焊接。用自制焊接工艺装备来保证连杆的位置精度、连杆长度。
I plant for the production of various types of beam pumping unit. The connecting rod is one of the key components of the pumping unit. It consists of an upper connecting rod head, a lower connecting rod head and a connecting rod pipe. The first two parts made of ZG35 Ⅱ, the latter part of the 20th seamless steel pipe. As the connecting rod is longer, usually 3 ~ 6m, upper and lower connecting rod head machining accuracy and position accuracy requirements, the manufacture of the overall use of connecting rod welding, difficult. Therefore, I plant the first processing of various parts, and then welding. With homemade welding technology and equipment to ensure the accuracy of connecting rod position, connecting rod length.