对ZC1蜗杆传动强度进行了研究，基于啮合理论、赫兹理论和ZC1圆弧圆柱蜗杆的强度解析式，并结合有限元建立了蜗杆副的接触模型，将计算得到的应力结果与解析式计算的应力进行对比。解析式算法结果略大于有限元法结果的11.5%~15.5%，验证了有限元法的正确性，可以作为ZC1蜗杆副啮合的强度计算依据。并且研究了蜗杆啮合过程中的齿间载荷分配情况，得出第一对啮合齿的承受主要的扭矩，约占总负荷的60%~72.3%。接触应力沿蜗轮齿长方向的分布形状为U形。%Strength of ZC1 worm drive is studied. Based on meshing theory, hz theory and the intensity of ZC1 circular cylindrical worm, the contact model of worm pair is established combining with the finite ele-ment. The calculated stress results compare with analytical calculation of stress. Analytical algorithm results slightly bigger than the finite element method of 11. 5% ~15. 5%. The finite element method is validated the correctness and can be used as the strength calculation basis of ZC1 worm pair meshing. Load distribution a-mong gear teeth has been studied in the process of worm gearing, it is concluded that the first pair of mes-hing teeth under the main torque, accounts for about 60% ~72. 3% of total load . The distribution of contact stress along the direction of worm gear teeth shapes for U.
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