YUAN Xinmei,HUANG Jiawei,YANG Lizhao,et al. Design and analysis of the reversing device for extended-range pumping units[J]. Journal of Mechanical Transmission,2025,49(9):64-71.
YUAN Xinmei,HUANG Jiawei,YANG Lizhao,et al. Design and analysis of the reversing device for extended-range pumping units[J]. Journal of Mechanical Transmission,2025,49(9):64-71. DOI: 10.16578/j.issn.1004.2539.2025.09.008.
Design and analysis of the reversing device for extended-range pumping units
To address the deficiencies in non-quick return and cyclic load adaptation of the reversing device for extended-range pumping units
a high-efficiency and reliable non-circular gear crank slider reversing device was developed.
Methods
2
The calculation of push and pull forces on the slider was conducted
along with motion analysis
and the optimal fastening angle between the crank and driven non-circular gear was determined. By employing dynamic simulation methods
the impact of the fastening angle between the crank and the driven eccentric non-circular gear as well as the eccentricity of the ellipse on the motion law of the reversing device was examined. Furthermore
finite element simulation methods were utilized to conduct the comprehensive analysis of contact stress on the tooth surface of the non-circular gear.
Results
2
The findings indicate that the upstroke movement of this reversing device is stable
and the downstroke time is relatively short
which is conducive to enhancing the stability and oil extraction efficiency of the pumping unit. In the meshing area where single tooth and double teeth of the non-circular gear pair alternate
the contact stress undergoes significant variations. The eccentricity and tooth width of the non-circular gear pair have a considerable influence on the distribution of the tooth surface contact stress and must be restricted. The research results can provide reference for the work efficiency and reliability improvement of extended-range pumping units.
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