关键词: 引纬机构, 非圆齿轮, 行星轮系, 反求

Abstract:

In order to analyze the kinematic characteristics of non-circular planetary gear trains weft insertion mechanism and then obtain a group of preferable parameters, a kinematic model of this mechanism was established. Besides, the aided analytical and kinematic simulation software was compiled based on Visual Basic 6.0. The influences of several important parameters on the shape of pitch curves of the non-circular gears in this mechanism were analyzed, and a group of preferable structural parameters were obtained. The movement simulation analysis was conducted under this group of parameters. Under the condition of same reed width and rotary speed of loom spindle, this novel mechanism was compared with the weft insertion mechanism applied on the TT96 rapier loom. The conclusion shows that non-circular planetary gear trains weft insertion mechanism has smaller maximum value of velocity and acceleration, and it can meet the requirments of weft insertion.

Key words: weft insertion mechanism, non-circular gear, planetary gear train, reverse solution