摘要
基于传统球面副的结构及工作空间特征,采用运动与约束单项分解、交错匹配的方法,将传统球面铰链的输出等效为正交的3个转动,通过重新匹配3个运动次序、结构约束形式及位置关系,提出并设计完成4种具有大工作空间的新型被动球面铰链,实现扩大球面铰链的转角工作空间10°～50°、部分解决了原有球面铰链因工作空间小而在工程应用中受到限制的问题.
Based on the characteristics of traditional spherical joint＇s structure and workspace,four passive-spherical hinges with large workspace are obtained.The method of decomposing motion and constraint separately and staggered matching is adopted in this design,that is,the output of traditional spherical joint is equivalent to three orthogonal rotations,and then the order of motions,the constraint style of structure and the relationship of locations are recomposed.Finally,the workspace of passive-spherical joint is enlarged of 10°-50°and the problem that the application of original spherical joint was restricted in practical engineering due to the limited workspace is resolved partly.
出处
《制造技术与机床》
北大核心
2014年第10期70-74,共5页
Manufacturing Technology & Machine Tool
基金
国家自然科学基金资助项目(51305384
51275443)
教育部科学技术研究重点项目(212012)
河北省高等学校科学技术研究青年基金项目(Y2011114)
教育部高等学校博士学科点专项科研基金资助课题(20111333120004)
河北省自然科学基金青年科学基金项目(E2012203034)
关键词
被动球面铰链
工作空间
运动分解
球窝换位
passive-spherical hinge
workspace
motion decomposition
ball and socket interchanged
