风电行星轮系动态传动特性分析
发布时间：2018-07-20 16:14
【摘要】：以风力发电机用增速齿轮箱内斜齿行星齿轮系为研究对象,考虑行星架存在的多间隙对齿轮啮合影响,建立齿轮系的非线性有限元模型,结合接触冲击动力学理论和有限元法,得到风电斜齿行星轮系的动态啮合应力和齿根弯曲应力。研究不同转速和扭矩时风电齿轮传动的特点和变化规律,分析转速和扭矩对斜齿行星传动特性的影响,并对不同扭矩和转速的齿轮啮合应力和齿根弯曲应力进行对比。结果表明:转速对啮合应力的影响较大,转速达到某一数值时,齿轮啮合过程中的应力达到最小,在此基础上增大或减小转速,应力均会增大;扭矩对应力的影响不大,但增大到或减小到一定程度会导致齿轮卡齿,建议对轮齿进行修行,以减小轮齿的应力。
[Abstract]:Taking the planetary gear system with helical teeth in the gearbox of the wind turbine as the research object, considering the influence of the multi-gap of the planetary frame on the gear meshing, the nonlinear finite element model of the gear system is established, and the contact impact dynamics theory and the finite element method are combined. The dynamic meshing stress and root bending stress of the planetary gear train with oblique teeth are obtained. The characteristics and variation law of wind power gear transmission with different speed and torque are studied. The influence of rotation speed and torque on the characteristics of helical gear planetary transmission is analyzed. The meshing stress and tooth root bending stress of gear with different torque and rotation speed are compared. The results show that the rotational speed has a great effect on the meshing stress. When the rotational speed reaches a certain value, the stress in the gear meshing process reaches the minimum, and on this basis, the stress increases when the rotational speed increases or decreases, but the torque has little effect on the stress. However, increasing or decreasing to a certain extent will lead to gear gripping. It is suggested that the gear teeth should be practiced in order to reduce the stress of gear teeth.
【作者单位】： 新疆大学机械工程学院;新疆大学电气工程学院;西安交通大学机械工程学院;
【基金】：国家自然科学基金(51565056;51165043)
【分类号】：TM315;TH132.41
本文编号：2134065
[Abstract]:Taking the planetary gear system with helical teeth in the gearbox of the wind turbine as the research object, considering the influence of the multi-gap of the planetary frame on the gear meshing, the nonlinear finite element model of the gear system is established, and the contact impact dynamics theory and the finite element method are combined. The dynamic meshing stress and root bending stress of the planetary gear train with oblique teeth are obtained. The characteristics and variation law of wind power gear transmission with different speed and torque are studied. The influence of rotation speed and torque on the characteristics of helical gear planetary transmission is analyzed. The meshing stress and tooth root bending stress of gear with different torque and rotation speed are compared. The results show that the rotational speed has a great effect on the meshing stress. When the rotational speed reaches a certain value, the stress in the gear meshing process reaches the minimum, and on this basis, the stress increases when the rotational speed increases or decreases, but the torque has little effect on the stress. However, increasing or decreasing to a certain extent will lead to gear gripping. It is suggested that the gear teeth should be practiced in order to reduce the stress of gear teeth.
【作者单位】： 新疆大学机械工程学院;新疆大学电气工程学院;西安交通大学机械工程学院;
【基金】：国家自然科学基金(51565056;51165043)
【分类号】：TM315;TH132.41
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