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为了确定由铰链四杆机构和反导杆机构串联组成的天轮式抽油机悬点和各构件的运动状态，建立了相应的运动和动力分析解析方程，计算了抽油机的运动和动力规律，得出结论：(1)抽油机的连杆受力较小，但连杆受压特别是失载后，将承受较大的压力；(2)抽油机的支架受力较复杂，必须有足够的强度；(3)抽油机天轮和摆杆之间的力受平衡的影响较大，当平衡不佳时，该力将急剧增加；(4)相对于常规游梁式抽油机，天轮式抽油机结构复杂，外形尺寸较小，质量轻。
In order to determine the dynamic state of the skidding unit and the components of the skid-mounted pumping unit, which are composed of the hinged four-bar mechanism and the anti-bar linkage mechanism, a corresponding analytic equation of motion and dynamic analysis is established and the motion and power of the pumping unit are calculated The conclusion is drawn as follows: (1) The connecting rod of pumping unit is less stressed, but the connecting rod is under pressure, especially after losing load, it will bear a lot of pressure; (2) , Must have sufficient strength; (3) the force between the pulley and the swing rod of the pumping unit is greatly affected by the balance, and when the balance is poor, the force will increase drastically; (4) Compared with the conventional beam type Pumping unit, day wheel pumping unit complex structure, smaller size, light weight.