风电变桨轴承齿轮修形的建模方法研究

谢文涛; 毛范海; 王智; 王渊

doi:10.19912/j.0254-0096.tynxb.2023-1258

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (12) : 228-234. DOI: 10.19912/j.0254-0096.tynxb.2023-1258

风电变桨轴承齿轮修形的建模方法研究

谢文涛, 毛范海, 王智, 王渊

作者信息 +

RESEARCH ON MODELING METHOD FOR GEAR MODIFICATION OF WIND POWER PITCH BEARING

Xie Wentao, Mao Fanhai, Wang Zhi, Wang Yuan

Author information +

文章历史 +

摘要

提出一种风电变桨轴承齿轮修形的精确建模方法,用以确定风电变桨轴承齿轮的修形量。根据齿廓方程建立离散齿廓点,使用B样条拟合得到精确齿廓线建立齿轮模型,划分网格并使用栅格法加密齿轮接触区;根据渐开线法线性质几何推导出加密区域节点的偏移方向,通过修形曲线函数计算出节点偏移量,沿偏移方向按照偏移量偏移节点,得到修形后风电变桨轴承齿轮模型;建立多个不同修形量风电变桨轴承齿轮模型,分别装配到风电变桨轴系中进行齿面接触计算,对比计算结果确定最佳修形量。最大修形量为40 um时齿面接触应力最小,与两种经典修鼓量公式计算结果基本相同,证明模型的可靠性。根据该文的建模方法,能快速有效地确定风电变桨轴承齿轮修形量。

Abstract

In this paper, an accurate modeling method for pitch bearing gear modification is proposed to determine the modification amount of pitch bearing gear. Discrete tooth profile points are established according to the tooth profile equation, accurate tooth profile lines are obtained by B-spline fitting, and the gear model is established. The grid is divided and the grid method is used to densify the contact area of the gear. Based on the properties of normals of involute, the offset direction of nodes in the encrypted area is derived geometrically. The offset amount of nodes is calculated through the modification curve function, and the nodes are offset along the offset direction to obtain the modified pitch bearing gear model. Establish multiple models of pitch bearing gears with different modification amounts, assemble them into the pitch shaft system for tooth contact calculation, and compare the calculation results to determine the optimal modification amount. When the maximum modification amount is 40 μm, the tooth contact stress is the smallest, which is basically the same as the calculation results of two classic drum modification formulas, proving the reliability of the model. According to the modeling method in the article, the modification amount of pitch bearing gears can be quickly and effectively determined.

导出引用

谢文涛, 毛范海, 王智, 王渊. 风电变桨轴承齿轮修形的建模方法研究[J]. 太阳能学报. 2024, 45(12): 228-234 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1258

Xie Wentao, Mao Fanhai, Wang Zhi, Wang Yuan. RESEARCH ON MODELING METHOD FOR GEAR MODIFICATION OF WIND POWER PITCH BEARING[J]. Acta Energiae Solaris Sinica. 2024, 45(12): 228-234 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1258

中图分类号： TH132.4

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