基于非直连结构的编码器组件结构优化设计

Optimization Design of Encoder Components Based on Non-direct Connection Structure

随着电动机高效节能技术的发展,伺服电机因高功率密度、高频响的特点在智能化产业应用越来越广泛。电机在长期、高速运行状态下,其内置编码器温升容易超出使用标准,会影响电机运行的可靠性。为了提升编码器的安装精度和降低编码器运行温度,本文通过校核组件尺寸链,减少零件装配带来的误差,通过分析组件温度场分布,确定热源对编码器温升的影响程度,通过优化联轴器端盖结构,降低电机高温部分向编码器的热传导,最后通过Steady-State Thermal有限元稳态温度场仿真,验证编码器组件结构优化的有效性和温升测试实验的合理性。

With the development of high-efficiency and energy-saving technologies for motors,servo motors have become more and more widely used in intelligent industries due to their high power density and high frequency response.In the long-term,high-speed operation of the motor,the temperature rise of the built-in encoder is likely to exceed the standard,which will affect the reliability of the motor’s operation.In order to improve the installation accuracy of the encoder and reduce the operating temperature of the encoder,this article checks the dimensional chain of the components to reduce the errors caused by the assembly of parts,analyzes the temperature field distribution of the components,to determine the influence degree of the heat source on the temperature rise of the encoder,optimizes the structure of the cover,to reduce the heat conduction of the high temperature part of the motor to the encoder.Finally,through Steady-State Thermal finite simulation,to verify the effectiveness of the structural optimization of the encoder assembly and the rationality of the temperature rise test experiment.