Analysis of Load Sharing of Planetary Gear Train Considering the Flexibility of Planet Carrier

Xu Hongbin; Xu Taojin; Huang Yongping

doi:10.16578/j.issn.1004.2539.2016.03.024

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Analysis of Load Sharing of Planetary Gear Train Considering the Flexibility of Planet Carrier

更新时间：2022-10-20

- Analysis of Load Sharing of Planetary Gear Train Considering the Flexibility of Planet Carrier
- Vol. 40, Issue 3, Pages: 107-111(2016)
- 作者机构：
  
  1. 重庆理工大学机械工程学院
  2. 重庆齿轮箱有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2016.03.024
  CLC：
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[1]许洪斌,徐涛金,黄永平.考虑行星架柔性时行星轮传动系统均载特性分析[J].机械传动,2016,40(03):107-111.

Xu Hongbin, Xu Taojin, Huang Yongping. Analysis of Load Sharing of Planetary Gear Train Considering the Flexibility of Planet Carrier. [J]. 40(3):107-111(2016)
[1]许洪斌,徐涛金,黄永平.考虑行星架柔性时行星轮传动系统均载特性分析[J].机械传动,2016,40(03):107-111. DOI： 10.16578/j.issn.1004.2539.2016.03.024.

Xu Hongbin, Xu Taojin, Huang Yongping. Analysis of Load Sharing of Planetary Gear Train Considering the Flexibility of Planet Carrier. [J]. 40(3):107-111(2016) DOI： 10.16578/j.issn.1004.2539.2016.03.024.

摘要

介绍了SIMPACK中柔性体文件生成流程以及齿轮切片处理原理及相关用途;以某7MW风电齿轮箱为例,在SIMPACK软件中建立其一级行星轮系多体动力学模型;建模过程中将行星架考虑为柔性体,并对齿轮作切片处理,分析行星轮系统在额定输入功率、额定转速工况下行星架变形,以及由于行星架变形造成的齿轮不均载特性。研究发现,当使用精确的行星架三维模型,并考虑行星架柔性时,受齿轮啮合力变化以及齿轮变形的影响,不同行星轮销轴两端行星架变形量不同,总体上输入端扭转变形量大于输出端;并对比行星架变形和齿轮均载系数,发现行星架扭转变形主要影响齿轮齿向不均载系数,对齿间载荷分布影响很小。研究结果可为行星架结构优化设计提供依据。

Abstract

The principle and application of flexible file generation process and gear slicing in the SIMPACK are introduced. Taking a 7MW wind turbine gearbox as an example,a multi- body dynamics model of the first planetary gear train is built in the SIMPACK. In the modeling process,the planet carrier is considered as flexible body and the gears are split into five smaller segments. The deformation of the planet carrier and the load sharing behavior is analyzed when gearbox is at rated input power and speed. The results show that,when using the accurate 3D model of planet carrier and considering the flexible of it,the deformation of the planet carrier is effected by the variable engagement force and tooth deformation. The deformation of the planet carrier connected to different pin is different,but the torsional deformation of input stage is larger than output stage generally. Comparing the deformation of the planet carrier with the load sharing coefficient,it is found that the torsional deformation of the planet carrier is the main factor effect the uneven load coefficient of the gear. The results can be a reference of the structural optimization design of planet carrier.

关键词

Simpack均载行星传动柔性行星架

Keywords

SimpackLoad sharingPlanetary transmissionFlexible planet carrier

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