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Issue:ISSN 1006-5539
          CN 51-1183/TE

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    Your Position ：Home->Past Journals Catalog->2013 Vol.3

    Study on Mechanical Property Based on Under Partial Barbell Type Oil Pumping Unit Horse Head
    Author of the article:
    Author's Workplace：
    Key Words： Oil pumping unit； Horse head； Finite element analysis； Structure improvement
    Abstract：As the main load-bearing structure of oil pumping unit， the horse head is under alternating load for a long time in laboratory testing and site operation， partial small cracks appear easily at its throat and such cracks will extend continuously and result in its tear and damage. Aiming at the above problems occurring in the horse head of CYJ5-1.8-18HPF pumping units， analyzed is the model of the horse head in combination with theory of mechanics and conducted is its finite element calculation by using ANSYS simulation environment. Proposed is a scheme for optimizing stress concentration of the horse head according to the results of finite element calculation. Comparison of finite element calculation results with the improved ones show that the maximum stress at the horse head is reduced from 144.96Mpa down to 89.409Mpa and the improved horse head can meet relative requirements. The simulation results have certain guiding significance for design and improvement of oil pumping units.
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