摘要
滚子包络蜗杆传动作为一种新型传动装置,在机器人关节、包装生产线、数控机床回转中心等领域已逐步得到应用,但对经典的单、双滚柱传动的相关原理却未建有统一的分析理论。针对这一问题,基于齿轮啮合原理和空间啮合理论,首次构建了统一的单双滚柱包络环面蜗杆传动的啮合方程、诱导法曲率、润滑角、滚柱自转角、卷吸速度、螺旋升角、接触线方程等,并利用Matlab软件进行了数值分析研究,从理论上阐释了单滚柱包络环面蜗杆传动与双滚柱包络环面蜗杆传动这两种主要滚柱包络蜗杆传动在传动原理、传动性能等方面的差异,进一步地对单双滚柱做了传动效率试验。研究结果表明:未发现两者之间在传动效率上有较大差异,单滚柱包络环面蜗杆传动在单纯考虑上述各关键技术指标时要较双滚柱包络环面蜗杆传动具备更多优势,且在加工制造、安装调试等方面更简单,但当涉及消除齿侧间隙的功能时,双滚柱包络环面蜗杆传动具备更好的自动调节优势,此研究为推动滚柱包络环面蜗杆传动的应用与提升其相关性能指标奠定了理论基础。
As a new precision transmission system,the anti-backlash roller enveloping hourglass worm gear has been increasingly used in robot joint design,packaging production line,and CNC(computer numerical control)machine tools.In spite of that,a general theory used to analyze the classic single and double roller transmissions principles still remain uncovered.To solve this problem,unified engagement equation,induced normal curvature,lubrication angle,autorotation angle,entrainment velocity,helix angle and contact line equation are established for the first time and numerically investigated by utilizing Matlab code.The difference between the single-roller enveloping hourglass worm and the double-roller enveloping hourglass worm in terms of their transmission principle and transmission performance are theoretically clarified.Transmission efficiency experimental tests are conducted for both two roller enveloping hourglass worms.The results of our studies show that there is no significant difference between the two roller enveloping hourglass worms regarding their transmission efficiency.The anti-backlash single-roller enveloping hourglass worm(ASEHW)gear enjoy more advantages with respect to above key technical indicators than the anti-backlash double-roller enveloping hour glass worm(ADEHW)gear.In addition,the ASEHW gear are easier to fabricate,install,and calibrate compared with its counterpart.However,when eliminating gear backlash is taken into account,the ADEHW gears are more auto-adjustable.This study will laid a theoretical foundation for promoting the application of the anti-backlash roller enveloping hourglass worm gears and improving its related performance.
作者
邓星桥
王杰
王世松
王仕可
何舸
刘宇澄
DENG Xingqiao;WANG Jie;WANG Shisong;WANG Shike;HE Ge;LIU Yucheng(College of Nuclear Technology and Automation Engineering,Chengdu University of Technology,Chengdu 610059;School of Mechanical Engineering,Xihua University,Chengdu 610039;Department of Mechanical Engineering,Mississippi State University,Mississippi State,USA 39762)
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2020年第3期88-95,共8页
Journal of Mechanical Engineering
基金
国家自然科学基金(51875479)
四川省杰出青年基金(19JCQN)资助项目。
关键词
滚子包络蜗杆传动
零侧隙
啮合理论
传动效率
roller enveloping hourglass worm gear
zero-backlash
gear engagement theory
transmission efficience
