剑杆织机惯性载荷变化规律及提速试验

Inertial load change rule and speed increasing test of rapier loom

为提高剑杆织机的车速,通过研究其传动系统各构件的主轴等效转动惯量变化规律、分布规律,织机惯性载荷的变化规律等,获取了织机各运动构件对主轴等效转动惯量的占比规律。针对幅宽360 cm的WL680型剑杆织机,通过结构优选,剑头剑带的质量减轻28.26%,传剑轮的转动惯量减少45.73%,设计样机。经仿真验证:优化后的样机降低等效惯性载荷约27%,织机幅宽减小,其效果明显下降。经实物样机测试验证:相同车速条件下,优化后样机振动和功耗明显降低,最高运行速度提高约7%~8%。研究结果表明:虽然剑头剑带的质量、传剑轮的转动惯量较小,但对主轴等效转动惯量的影响敏感,减小其质量和转动惯量能有效减小织机惯性载荷、降低织机振动和功耗、提高织机车速。

In order to increase the speed of a rapier loom,the change rule and the distributions of the equivalent moment of inertia on main shaft of all components of its driving system as well as the change rule of the inertial load on the loom were studied,and the proportion rule of the motion components of the loom to the equivalent moment of inertia on main shaft was obtained.For a WL680 type rapier loom with a reed width of 360 cm,by the structure optimization,the weight of rapier and ribbon is reduced by 28.26%,and the moment of inertia of the rapier wheel is reduced by 43.73%.A prototype was designed.The simulation results showed that the equivalent moment of inertia on main shaft of the optimized loom is reduced by 27%,and as the loom width decreases,the effect of this method reduces obviously.The physical prototype test showed that the vibration and power consumption of the optimized loom reduce obviously when running at the same speed,the highest speed of the optimized loom increases by 7%-8%.The results show that although the weights from rapier and ribbon are light and the moment of inertia of the rapier wheel is small,their influences on the equivalent moment of inertia on main shaft are sensitive,and it is great helpful to increase the loom speed and to reduce the vibration and power consumption of the loom by reducing its weight and moment of inertia.