In the development of swing pumps, in order to achieve the dynamic balance of a folding shaft without trail weights, a multi-scheme method was established based on a parameter model for equilibrium state and the reverse structural designing.The parameter model consists of three variables, the mass-radius product of the balance weight on the direct-axis, the mass of balance weight on the oblique-axis and the centroid shifting distance of the oblique-axis. By virtue of the centroid calculation formula and the mathematical model with structural optimization,a method for reverse structural design was proposed and according to this way the balance weight was designed successfully. The balance effect of each solution has been verified through the established bearing-support model and corresponding vibration tests. It is shown that, different balance solutions can be provided through this dynamic balance method and all solutions can decrease the imbalance of the folding shaft effectively.
XU Yuan， YI Jun， DENG He， ZHOU Fan， HAN Zhijia， ZENG Minghao.
Dynamic balance method without trial weights for a folding shaft based on the reverse structural designing[J]. Journal of Vibration and Shock, 2019, 38(22): 263-270
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