棉纺精梳机钳板加压机构动力学分析

Kinetics Analysis of Nipper Pressure Mechanism in Cotton Spinning Comber

研究精梳机钳板加压机构各连杆受力大小及锡林速度对连杆受力的影响。分析了钳板加压机构的工作过程,并建立了钳板加压机构的三维实体模型。运用ADAMS软件,对精梳机不同速度时钳板加压机构各连杆受力进行动力学仿真和分析,得到了精梳机一个工作周期内各连杆铰链点受力的变化规律。结果表明:在精梳机一个工作周期内,钳板加压机构各连杆铰链点受力曲线相似,铰链点的最大受力均发生在钳板闭合阶段;钳板加压机构各连杆铰链点的受力随着精梳机速度的提高而迅速增大。认为:明确钳板加压机构各连杆铰链点的受力规律、峰值和谷值,有助于钳板加压机构连杆结构和材质的优化设计,提高各部件的使用寿命。

Influences of the forces on each connecting rod of nipper pressure mechanism in comber and the cylinder speed on the connecting rod force were studied.The working procedures of nipper pressure mechanism was analyzed.Three entity model of the nipper pressure mechanism was established.Adams software was used to simulate and analyze the kinetics for the forces on each connecting rod of the nipper pressure mechanism in comber at different speed. The change principle of the force on each connecting hinge point for the comber in one working cycle was obtained.The test results showed that the force curves of each connecting hinge point in nipper pressure mechanism were similar in one working cycle of the comber. The largest force on the hinge point was all showed in the close period of nippers.The force on each nipper hinge points of the nipper pressure system was rapidly increased as the increase of the comber speed.It is considered that clearing the forcing rule,peak and valley of each nipper hinge points in nipper pressure mechanism is beneficial to the design optimization of the connecting rod structure & material of the nipper pressure mechanism and increase the service time of each part.