Analysis for Performance of Herringbone Spiral Groove Thrust Bearing

doi:10.7652/xjtuxb202010003

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Analysis for Performance of Herringbone Spiral Groove Thrust Bearing

更新时间：2025-07-09

- Analysis for Performance of Herringbone Spiral Groove Thrust Bearing
- Vol. 54, Issue 10, Pages: 17-27(2020)
- 作者机构：
  
  西安交通大学现代设计及转子轴承系统教育部重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202010003
  CLC： TH133
- Online First：10 October 2020，
  
  Published：2020
- 稿件说明：
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Analysis for Performance of Herringbone Spiral Groove Thrust Bearing[J]. 2020, 54(10): 17-27.
DOI：

Analysis for Performance of Herringbone Spiral Groove Thrust Bearing[J]. 2020, 54(10): 17-27. DOI： 10.7652/xjtuxb202010003.

摘要

为了研究人字形螺旋槽止推轴承的结构参数对其静动态性能的影响

针对轴承的特殊结构

通过坐标变换在扇形坐标系下

建立了轴承的性能计算模型。在正交坐标系下运用有限差分法对雷诺方程进行了离散和求解

得到了轴承的膜厚压力分布; 研究了槽数、槽深和螺旋角等结构参数对轴承静动态性能的影响

综合考虑油膜承载力和刚度等因素

确定了轴承各结构参数对应的最优取值; 通过分析人字槽轴承内部流体的流动状态

得到了槽深间隙比对基于层流和紊流两种计算模型下所得结果的影响规律。研究结果表明:人字槽顶端为主要承载区

该区域内存在压力峰值; 在加工允许范围内

可以增加槽数

在轴承间隙为0.01 mm

槽深间隙比约为3、槽台宽比为0.7～1、螺旋角为60°时

轴承可以获得较好的润滑性能; 当槽深间隙比大于3时

轴承内部会出现明显涡流

导致油膜承载力减小、温升升高

此时基本的雷诺方程不再适用。研究成果可为国产高性能CT设备中液态金属轴承技术提供一定的理论指导。

Abstract

To reveal the influence of the structural parameters of the herringbone spiral groove thrust bearing on its static and dynamic performance

a calculation model of bearing performance with coordinate transformation in the sector coordinate system was established. Based on the orthogonal coordinate system

the Reynolds equation was discreti-ed and solved by finite difference method

so that the film thickness and the pressure distribution of bearing were obtained. The effects of structural parameters

such as groove number and spiral angle

on the static and dynamic performance of bearing were discussed

and the optimal structural parameters were determined by analy-ing the factors

such as oil film bearing capacity and stiffness. Investigating the flow state of the fluid inside the spiral groove bearing

the influence of the groove depth-to-clearance ratio on two calculations of laminar and turbulent flows was obtained. The results show that the top of the herringbone groove is the main

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references

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