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Pumping unit is the the oilfield pumping system ground rod driven equipment , accounted for 90% of the total number of oilfield equipment , including beam-pumping unit is the most widely used . In this paper, a rear- beam pumping unit ( including conventional and heterogeneous type ) study , its movement and dynamics simulation and optimization of the design . First, the combination of the existing beam pumping unit works , the phase of the oil fields in the Battle of conventional type beam pumping unit and different the crank balance beam pumping unit kinematics and the rod load gearbox crank shaft the static torque kinetic parameters detailed analysis provides a theoretical basis for the calculation, for the kinematics and dynamics simulation of beam pumping unit and its optimal design . Secondly , the use of MATLAB, the preparation of the simulation soft even caught moments as well as the displacement of the main components of the pumping unit load on the suspension point of the pumping unit in any position , speed , acceleration and speed reducer output shaft speed , acceleration Lee member connecting point force simulation , dynamic analysis of the pumping unit the movement Lee force change and geometric parameters on the performance of pumping unit . Finally, the combination of mechanical optimization design theory , the geometric parameters of the pumping unit four institutions , an important part of the connecting rod and crank balanced phase angle optimized design , the preparation of the corresponding optimized design software , each optimized pumping units kinematics and kinetic parameters of the simulation and optimization results are analyzed and compared .
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