【作者】 柴方茂； 樊延超； 辛宏伟； 鲍赫； 张银鹤； 徐宏； 李志来；

【Author】 CHAI Fang-mao;FAN Yan-cao;XIN Hongwei;BAO He;ZHANG Yin-he;XU HONG;LI Zhi-lai;Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences;

【机构】 中科院长春光学精密机械与物理研究所；

【摘要】 依据空间光学遥感器的特殊使用环境的需求和可能出现的焦面离焦现象,本文设计了一种基于正反螺旋滚珠丝杠结构和刚柔连杆结合结构的新型调焦机构,并对调焦机构进行了指标分解、参数确认、详细设计和精度检测。最终得到机构的质量为4.5kg,机构的分辨率为0.2μm,机构的有效行程为2.6mm,机构环境模拟试验后的最大空回量为3μm,机构环境模拟试验后的沿镜面两个方向的晃动量分别为6″和4″,机构环境模拟试验后的重力倾角为5″。环境模拟试验过程中,机构具有良好的自锁性能。检测结果表明,新型调焦机构的所有指标满足设计需求,适合在空间光学遥感器中使用。更多还原

【Abstract】 According to the needs of the special use environment of the space remote senor and the possible focal plane off focus phenomenon,it’s designed a new type focusing mechanism based on the positive and reciprocal helix ball screw structure and rigid-soft connecting rod combined structure,and also made the index decomposition,the parameters confirmed,the detailed design and the precision detection for the focusing mechanism in this paper.The quality of the mechanism is 4.5 kg,the resolution is 0.2um,and the effective stroke is 2.62 mm.After the environmental simulation test,the maximum backlash of the mechanism is 3 urn,the sloshing along the two directions of the mirror is 6"and 4"and the gravity angle is 5".The mechanism had good self-looking performance in the process of environment simulation test The results show mat all indicators of the new type focusing mechanism meet the design requirements,and it’s suitable for the use in the space optical remote sensor.更多还原