经编机梳栉横移系统误差建模与仿真

为研究经编机梳栉横移系统机械结构对横移误差的影响，基于赫兹接触理论计算了滚珠丝杠副的轴向刚度、双列角接触球轴承的轴向刚度和径向刚度、直线轴承和滚珠导套的径向刚度，同时考虑导纱梳栉、球铰和异形连接件的柔性，通过ANSYS 和ADAMS 软件进行刚柔耦合分析，获得了系统的横移误差。分别研究了导纱梳栉的 质量和刚度对加固架驱动和重心驱动 2 种横移系统横移误差的影响。结果表明：横移误差主要由梳栉和异形连接件在偏转力矩下的弯曲变形以及梳栉和球铰在轴向推力下的压缩变形产生，减小梳栉的质量和增加梳栉的刚度均能减小系统的横移误差；重心驱动方式克服了梳栉在横移过程中产生的偏转力矩，从而减小了对梳栉刚度的要求。

Modeling and simulation oftransverse motion error of guide bar shogging system ofwarp knitting machine

In order to investigate the effects of mechanical structure on the transverse motion error of guide bar shogging system, firstly, the transverse motion error was obtainedby the rigid-flexible coupling dynamic model by Ansys and ADAMS software, considering the axial stiffness of ball screw, the axial and radial stiffness of angular contact ball bearings, the radial stiffness of linear bearings and guide bushings calculated by Hertz contact theory, and the flexibility of the guide bar, spherical hindge and special shape connection. Then, the effects of the mass and stiffness on the transverse motion errors of the guide bar shogging systems driven with the reinforcement and driven by the center of gravity were investigated. The results show that the transverse motion errors are produced mainly by the bending deformation of guide bar and the special shape connection caused by deflection moment and the compressive deformation of the guide bar and the spherical hinge caused by axial thrust, and the transverse motion error can be reduced by decreasing the mass and increasing the stiffness of the guide bar. Driven by the center of gravity can reduce the deflection moment,thereby reduce the requirement of the stiffness of the guide bar.