论文部分内容阅读
汇集国内外１０种典型的增大冲程无游梁抽油机，简要分析了它们的结构特点、工作原理、优缺点和使用经济效益。对现有４种增大冲程机构进行了具体分析，分析研究结果表明：增大冲程无游梁抽油机是增大冲程抽油机的发展方向，也是我国增大冲程抽油机的发展方向，今后还将会有一定的技术发展。结合我国具体情况，提出了发展我国增大冲程无游梁抽油机的３点建议
Ten kinds of typical stroke-increasing beamless pumping units at home and abroad are collected, and their structural characteristics, working principle, advantages and disadvantages and economic benefits are briefly analyzed. The existing four kinds of increasing stroke mechanism were analyzed in detail. The analysis results show that increasing stroke without beam pumping unit is the development direction of increasing stroke pumping unit and also the developing direction of increasing stroke pumping unit in our country In the future there will be some technical development. Combined with our country’s specific conditions, put forward the development of our country to increase stroke without beam pumping unit 3 suggestions