对接锁索驱轮系传动同步性及补偿研究

Research on transmission synchronization and its compensation of cable-driven sheaves in docking locks

针对空间对接锁系装配采用目测采集数据,导致误差大、装配效率低的问题,依据索驱轮系传动结构,设计和搭建实验测试平台,并结合虚拟仪器技术利用LabVIEW软件开发轮系同步性测试系统,在不同预紧载荷作用下对索轮传动同步性进行测试。根据钢索形变、蠕变及系统测试的运动形变数据,提出一种轮系传动同步性补偿与控制方法。实验结果表明,利用开发的同步性测试系统可实现对索驱轮系传动误差的精确采集,提出的同步性补偿方法可为空间锁系装配效率的提高提供参考。

In view of the problem of large error and low assembly efficiency caused by visual data collection in the assembly of the space docking locks,an experimental test platform is designed and built based on the transmission structure of their cable-driven sheaves.The synchronization test system of the sheaves is developed by virtual instrument technology and LabVIEW software,with which their transmission synchronization is measured under different preloads.According to the rope deformation,creep and the motion deformation data by the system testing,a compensation and control method is proposed forthe transmission synchronization of wheel system.The experimental results show that the developed synchronization test system can be used to accurately collect the transmission error of cable-driven sheaves,and the proposed synchronization compensation method can provide a reference for improving the assembly efficiency of space docking locks.