电主轴热补偿及轴承故障检测在热辐射测温方面的研究

李滨; 彦成

doi:10.13433/j.cnki.1003-8728.20220279

电主轴热补偿及轴承故障检测在热辐射测温方面的研究

doi: 10.13433/j.cnki.1003-8728.20220279

李滨,
彦成

1.
东北林业大学机电工程学院，哈尔滨　150040

基金项目: 哈尔滨市应用技术研究与开发项目（2017RALXJ011）

详细信息

作者简介:
李滨，副教授，博士，libinlibin1975@163.com

中图分类号: TH133.3
计量
- 文章访问数: 28
- HTML全文浏览量: 11
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2022-03-13
- 刊出日期: 2024-03-25

Measuring Thermal Radiation Temperature of Motorized Spindle's Thermal Compensation and Bearing Fault Diagnosis

LI Bin,
YAN Cheng

1.
College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, China

摘要

摘要: 针对电主轴轴体的热变形以及重要零部件轴承在加工中心上的常见故障，提出基于收集电主轴温度变化的热误差实时补偿计算方法与轴承常见故障的诊断方法。热误差补偿方法可以通过对轴体上测温点数据的处理对电主轴单元进行实时的热误差补偿提高加工精度。故障诊断方法是对不同的温度节点设置不同的阈值，阈值对应着电主轴单元内部某些重要零件的故障特征，当节点温度变化超出阈值即进行报警以诊断具体零件的故障。促进了电主轴的智能化进程，为接下来的研究打下基础。
- 加工中心 /
- 电主轴 /
- 温度 /
- 热变形 /
- 实时补偿 /
- 故障诊断
Abstract: To reduce the thermal deformation of a motorized spindle's shaft body and the common faults of important parts such as bearing in the processing center, a real-time thermal error compensation calculation method based on collecting the temperature change of the motorized spindle and the bearing's common fault diagnosis method were proposed. The thermal error compensation calculation method can improve the machining accuracy of the motorized spindle unit through processing the temperature measurement point data of the shaft body. The fault diagnosis method is used to set different thresholds for different temperature nodes. The threshold corresponds to the fault characteristics of a certain important part inside the motorized spindle unit. When the change in a temperature node exceeds the threshold, the alarm is given to diagnose the faults of a particular part.
- processing center /
- motorized spindle /
- temperature /
- thermal deformation /
- real-time compensation /
- fault diagnosis

HTML全文

图 1 工作原理

Figure 1. Working principle

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图 2 电主轴内部机械结构

Figure 2. Internal mechanical structure of electric spindle

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图 3 电主轴内部结构布局

Figure 3. Internal structural layout of electric spindle

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图 4 电主轴单元内部热源

Figure 4. Internal heat source of electric spindle unit

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图 5 内部温度分布

Figure 5. Internal temperature distribution

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图 6 外部温度分布

Figure 6. External temperature distribution

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图 7 电主轴内部结构简化

Figure 7. Simplified internal structure of electric spindle

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图 8 两节点间轴段温度分布

Figure 8. Temperature distribution in the axial section between two nodes

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图 9 电主轴测温节点分布

Figure 9. Distribution of temperature measurement nodes for electric spindle

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图 10 轴承失效归纳

Figure 10. Induction of bearing failure

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图 11 模拟试验台及仪器

Figure 11. Simulation test bench and instruments

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图 12 正常轴承工作轴体测温点温度变化对比

Figure 12. Comparison of temperature changes at temperature measurement points of normal bearing working shaft

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图 13 100 Hz故障轴承工作轴体节点温度变化对比

Figure 13. Comparison of temperature changes at the working shaft node of a 100 Hz faulty bearing

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