本科毕业设计（论文）通过答辩摘要无梁长冲程抽油机是一种大载荷、长冲程、低冲次及自动化程度高、方便节能的抽油机。
因此，研究它对于提高采油效率，降低采油成本有相当重要的作用。
本次设计采用双电机轮流工作，从而控制抽油杆的上升和下降。
所选用的两个电磁调速电机之间用同步齿形带连接。
由于电机空载启动，其启动电流较小，减小了电机对电网的冲击，抗电网电流波动能力增强，功率因数提高。
电机输出的功率通过V带轮传递给减速器，并且通过减速器对电机输出功率进行调整，然后通过链轮链条传递给抽油杆，最终把电机的旋转运动转化为抽油杆的上升和下降运动。
因此，本次设计的主要内容有换向装置方案的选取，电磁调速电机的选取，以及同步齿形带和减速器的设计：其主要包括V带设计、齿轮设计和轴的设计。
并且通过以上设计达到最终提高采油效率，降低采油成本的目的。
所以，本次设计的无梁长冲程抽油机是目前较为理想的机电一体化产品。
关键字：无梁长冲程抽油机；电磁调速电机；同步齿形带；减速器；机电一体化I本科毕业设计（论文）通过答辩ABSTRACTThe beamless long stroke pumping unit is a big load, long stroke a nd low times and high degree of automation, energy-saving convenience of the pumping unit. Therefore, the study has helped to raise production efficiency, lower production costs are an important role.This case is that two motors work alter natively. Then,they can control rod up and down. Selected two electromagnetic speed synchronous motors with toothed belts connected. As empty motor launch, starting current smaller, reducing the electrical power grid for the impact Anti - Electricity grid fluctuations capacity and improve power factor. Exports of electrical power through the V-pulley transmission to the reducer, and by the motor reducer output adjustment then transmitted to the sprocket chain rod and eventually motor rotating rod into the rise and fall c ampaign. Therefore, the current design of the main contents of the program for device selection, speed electromagnetic motor selection, and the synchronous belt and gear reducer design : its main V-belt design, the design and gear shaft design and calculation. Through the above, design and enhance the ultimate recovery efficiency and lower production cost. Therefore, the current design of the beam without long stroke pumping unit is the ideal integration of mechatronic products.Keywords:beamless long-stroke pumping unit; solenoid operated speed regulating motor; timing belt; Reducer; Mechatronic.II本科毕业设计（论文）通过答辩目录摘要 (I)ABSTRACT (II)1.绪论 ····························································································· - 1 - 1.1无梁长冲程抽油机设计的背景及目的 ······································ - 1 - 1.2无梁长冲程抽油机设计的必要性 ············································· - 2 - 1.3无梁长冲程抽油机国内外现状和发展趋势 ······························· - 3 -1.4无梁长冲程抽油机的特点························································ - 4 -2.总体设计 ····················································································· - 5 - 2.1方案优选 ················································································ - 5 - 2.2换向装置方案的选取 ······························································ - 5 -2.2.1无梁长冲程抽油机的换向方式的分类 ······························· - 5 -2.2.2在选取方案时主要考虑的问题·········································· - 6 -2.2.3换向方案·········································································· - 7 - 2.3总体方案设计········································································· - 9 -2.3.1总体方案·········································································· - 9 -2.3.2抽油机的工作原理（控制路线） ·····································- 11 -3.结构设计 ····················································································- 12 - 3.1电磁调速电动机 ····································································- 12 -3.1.1概论················································································- 12 -3.1.2电磁转差离合器的结构 ···················································- 12 -3.1.3电磁转差离合器的工作原理 ············································- 13 -3.1.4电磁调速电动机的机械特性 ············································- 14 -3.1.5传递效率·········································································- 17 - 3.2电机的选择 ···········································································- 18 - 3.3传动比分配 ···········································································- 20 - 3.4同步齿带设计········································································- 20 - 3.5计算传动轴的运动和动力参数 ···············································- 24 -III本科毕业设计（论文）通过答辩3.6V带设计·················································································- 25 - 3.7齿轮设计 ···············································································- 28 - 3.8轴的设计计算········································································- 33 -3.9链传动选择 ···········································································- 38 -4.结论 ···························································································- 39 - 谢辞 ·····························································································- 40 - 参考文献························································································- 41 -IV本科毕业设计（论文）通过答辩1.绪论1.1无梁长冲程抽油机设计的背景及目的抽油机是构成“三抽”（抽油机、抽油杆、抽油泵）设备体系的重要组成部分。
