扭矩自检型行星齿轮减速器研究

Research on Planetary Gear Reducer with Torque Self-inspection

为了提高动态扭矩测量技术水平,在综合分析现有扭矩传感器原理及存在问题的基础上,结合行星齿轮传动理论和压电陶瓷传感器技术,提出了基于行星齿轮传动的扭矩自检型行星齿轮减速器的结构原理,分析了该减速器性能特点和扭矩测量系统的组成。通过对行星齿轮减速器进行改进设计,用压电陶瓷力传感器测量内齿圈所受扭矩,进而计算出输入轴和输出轴的扭矩,将扭矩测量与动力传递融为一体,变复杂的扭矩测量为简单的压力测量,简化了扭矩测量系统,提高了扭矩测量的动态性能。研究结果表明,扭矩自检型行星齿轮减速器具有原理简单、灵敏度高、信噪比高、工作可靠、受环境因素影响小、维护简单方便等特点,能大大提高扭矩测量的检测精度和工作效率,可广泛应用于各种扭矩测量领域。

In order to improve the level of dynamic torque measurement techniques, on the basis of comprehen- sive analysis of the principle and the existing problems of the existing torque sensor, combining the theory of planetary gear transmission and piezoelectric sensor technology, the authors put forward the planetary gear reduc- er with torque self - inspection based on planetary gear transmission as well as analyzed the torque measuring principle and performance characteristics of the reducer. Through the improved design of planetary gear reducer and use of piezoelectric force sensor in measuring the gear ring of torque, the torque of input shaft and output shaft was calculated, the torque measurement and dynamic transmission were transferred into one, the complex torque measurement was changed into simple pressure measurement, the torque measuring system was simplified, and the dynamic performance of the torque measurement improved. The study indicates that the planetary gear reducer with torque self - inspection has such advantages as the simple principle of measurement, high sensitivi- ty, high signal -to -noise ratio, reliable work, small impact by environmental factors, convenient maintenance and so on. It can greatly improve the detection accuracy and efficiency of torque measurement, and widely used in all kinds of torque measurement fields.