Investigation on steady-state temperature field by a novel laminated tooth for multi-tooth in harmonic gear drive

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2024-12-18 DOI:10.1016/j.csite.2024.105649

Wang Shuyan, Chen Hongwei, Zhang Xinyi, Guo Shuming, Lin Zebin, Chen Bingkui

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引用次数: 0

Abstract

Harmonic gear transmission is a principal mode for robot joint reducers, and an accurate steady-state temperature field model of harmonic gears is vital to improving transmission performance. In this paper, the internal relationship between instantaneous multi-tooth meshing and single-tooth continuous meshing was first investigated. Calculation methods for tooth load stress, relative speed at meshing points, and friction coefficient in multi-tooth meshing were established, and a long-axis laminated single-tooth meshing model temperature field reflecting multi-tooth meshing was constructed. Then, the temperature field of the long-axis laminated single-tooth meshing model was compared with that of the full teeth and single-tooth model in the published literature. Finally, the temperature distribution laws under different working conditions were investigated. The innovation of this paper lies in the design of the temperature field of the flexspline laminated single tooth model by integrating the harmonic transmission principle. The results show that compared with the single-tooth and full-tooth temperature field models in the current published literature, the temperature field model in this study reduces the temperature error by 29.4%–34.1 % and saves the pre-processing time by 87.5 %, enhancing the prediction accuracy and efficiency of harmonic gear temperature. This model can be utilized to assess the reliability of harmonic gears.

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谐波齿轮传动是机器人关节减速器的一种主要模式，而精确的谐波齿轮稳态温度场模型对于提高传动性能至关重要。本文首先研究了瞬时多齿啮合与单齿连续啮合之间的内部关系。建立了多齿啮合的齿载荷应力、啮合点相对速度和摩擦系数的计算方法，并构建了反映多齿啮合的长轴层叠式单齿啮合模型温度场。然后，将长轴层叠单齿啮合模型的温度场与已发表文献中的全齿和单齿模型的温度场进行了比较。最后，研究了不同工况下的温度分布规律。本文的创新之处在于结合谐波传输原理设计了挠性斜线层叠单齿模型的温度场。结果表明，与目前已发表文献中的单齿和全齿温度场模型相比，本研究中的温度场模型可减少 29.4%-34.1 % 的温度误差，节省 87.5 % 的预处理时间，提高了谐波齿轮温度的预测精度和效率。该模型可用于评估谐波齿轮的可靠性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.