A combined moving mechanism with independent movement in longitudinal direction and transverse direction

To make the detecting robot move on the surface of the finned tubes, a novel combined moving mechanism is developed. The combined moving mechanism is composed of sprocket wheel and drum-like small wheel installed on the chain. It can make the robot move independently in the direction parallel to the tubes and in the direction perpendicular to the tubes. This paper made a detailed discussion on the composition of the combined moving mechanism, the design method of the conjugate outline curve and the circular-arc outline curve of the drum-like small wheel that meshes with the tubes. The error of the circular-arc outline curve is also analyzed.     

应用于锅炉检测机器人的一种新型复合车轮

为了使检测机器人能够在具有螺旋型鳍片的锅炉热交换器承压管道表面上行走,设计了一种新型的复合车轮.该复合车轮由2个链轮和多个鼓形小轮复合组成,能实现平行于管道方向和垂直于管道方向的移动.同时,对鼓形小轮的共轭轮廓曲线及其圆弧轮廓曲线进行了讨论,并对圆弧轮廓曲线的误差进行了分析.结果表明,采用圆弧轮廓的鼓形小轮可以满足检测要求.     

3-3PS并联机构式双晶单色仪晶体箱调控装置

针对目前双晶单色仪晶体箱调控装置的缺陷,提出了一种新型晶体箱调控装置,该装置采用3-3PS并联机构实现对晶体箱的6自由度位姿调节。详细分析了3-3PS并联机构的机构模型、自由度计算、位置逆解以及位姿调节分辨率,并对3-3PS并联机构式晶体箱调控装置结构设计作了介绍。该装置应用于北京同步辐射装置扩展X射线吸收精细结构(EXAFS)光束线双晶单色仪中,位置精度优于0.05 mm,姿态调节精度优于10 arcsec。