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一、前言 我国解放初期,抽油机主要靠苏联进口,后来仿制苏式抽油机,如CYJ3-915,CYJ3-1215,CYJ5-1812,CYJ10-2115等。接着又自行研制了几种型号的抽油机,如兰州通用机器厂生产的CYJ5-1215,兰州石油化工机器厂生产的CYJ5-2712、CYJ10-3012等。到七十年代,兰州石油机械研究所主持制订了JB1576-75《游梁式抽油机型式和基本参数》和JB2677-80《常规型游梁式抽油机结构尺寸》两项标准。标准中对我国自制常规型游梁式抽油机的基本参数和结构尺寸等作了规定。但是,我国在七十年代以前,无论是仿制的或自行
I. Introduction In the early days of our country’s liberation, the pumping units mainly imported from the Soviet Union, and later the Soviet-type pumping units were imitated, such as CYJ3-915, CYJ3-1215, CYJ5-1812 and CYJ10-2115. Then developed several types of pumping unit, such as CYJ5-1215 produced by General Machinery Factory in Lanzhou, CYJ5-2712 and CYJ10-3012 produced by Lanzhou Petrochemical Machinery Factory. To the seventies, Lanzhou Petroleum Machinery Institute presided over the development of JB1576-75 “beam pumping unit type and basic parameters” and JB2677-80 “conventional beam pumping unit structure size” two standards. In the standard, the basic parameters and structure dimensions of self-made conventional beam pumping units in China are stipulated. However, before the 1970s, our country was either imitative or self-reliant