Kinematic and Dynamic Simulation Analysis of Modified Conventional Beam Pumping Unit

Jinchao Xu, Wei Li and Siyuan Meng
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Jinchao Xu: Mechanical Science and Engineering Institute, Northeast Petroleum University, Daqing 163318, China
Wei Li: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
Siyuan Meng: Oil Production Engineering Research Institute, Daqing Oilfield Co., Ltd., Daqing 163453, China

Energies, 2022, vol. 15, issue 15, 1-15

Abstract: The large net torque fluctuations in the reducer output shafts of conventional beam pumping units and the existence of negative torque are the decisive factors that lead to their low efficiency and high energy consumption. This study developed a positive torque modulation scheme for conventional beam pumping units, which was based on the principle of the follow-up secondary balance of the connecting rod. The CYJ10-4.2-53HF conventional beam pumping unit was selected as the research object. The kinematic and dynamic simulation analysis of the modified pumping unit was carried out using ADAMS software. The results showed that secondary balance torque curves could realize the function of “peak cutting and valley filling” for the curves after the primary balance and that the modified pumping unit could achieve a full-cycle positive value for the reducer output shaft and verify the feasibility of our modulation scheme. A secondary balance offset angle of 315° was the best choice as the amplitude of the torque curve clearly increased and the phase remained basically the same when the radius of the mass center of the secondary balance increased. Therefore, when the offset angle value of the secondary balance weight was determined, the radius of the mass center could be changed by adjusting the position of the secondary balance weight to achieve the balance adjustment.

Keywords: beam pumping unit; positive torque; secondary balance; kinematic and dynamic analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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