光电编码器的传动方式及其传动精度分析  

Analysis of transmission modes and its transmission precision of photoelectric encoder

作　　者：李永刚[1,2] 丁金伟[1] 刘仲宇[1,2] 撖芃芃[1] 张葆[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所中国科学院航空光学成像与测量重点实验室,吉林长春130033 [2]中国科学院大学,北京100049

出　　处：《红外与激光工程》2013年第11期3008-3012,共5页Infrared and Laser Engineering

基　　金：国家863高技术研究发展计划(2008AA121803);973国家重点基础研究发展计划(2009CB72400607)

摘　　要：为了增加光电平台有效载荷的放置空间,需要将其内框架布局进行合理优化。采用平行轴传动方式,将光电编码器安装在主轴旁,可有效扩大光电平台内框架轴向空间。分析了同心轴传动和平行轴传动的优缺点,在平行轴传动中,阐述了单片齿轮传动、消间隙齿轮传动及钢带传动的适用性与局限性。通过实验分析了消间隙齿轮传动与钢带传动在有限转角范围内对光电编码器测角精度的影响。实验结果表明,消间隙齿轮传动在有限转角范围内的测角误差大于3′,钢带传动在有限转角范围内的测角误差小于1′,为增加有效载荷空间提供了一种途径。In order to increase the payload’s space of electro-optical platform, inner frame dispositions need to be optimized reasonably. The photoelectric encoder is mounted next to the spindle and using the parallel shaft transmission, which can expand axial space of inner frame effectively. The advantages and disadvantages of the concentric shaft transmission and parallel shaft transmission were analyzed, and applicability and limitations of parallel shaft transmission such as single gear transmission, elimination clearance gear transmission and steel belt transmission were expounded. The influence of elimination clearance gear transmission and steel belt transmission to angle measuring precision of photoelectric encoder were analyzed through experiment. Experimental results show that the angle measurement error of elimination clearance gear transmissionis is greater than 3’ in a limited angle range, and the angle measurement error of steel belt transmissionis is less than 1’ within a limited angle range. It provides a method for increasing payload’s space of electro-optical platform.

关 键 词：平行轴传动 齿轮传动 钢带传动 测角精度 

分 类 号：TH132[机械工程—机械制造及自动化]