摘要
针对打纬机构惯性打纬力与打纬阻力不平衡造成的不利影响,建立打纬机构的力学模型,以四连杆打纬机构为例,确定打纬机构结构方向的调节方法,考虑空间受限情况进行定量仿真分析,对比分析不同调节方案对驱动力矩和输出力矩的影响,并分析不同杆长设计参数带来的运动特性。仿真结果表明:通过增设平衡构件和改变杆长比例可以有效地调控惯性打纬力;当打纬力不足时,转动惯量与角加速度后打纬力矩分别提升了约14.5%与3%,共同调节提升约17.8%;当打纬力过大时,通过尺度调节后力矩降低了约7.6%;转动惯量和角加速度是惯性打纬力的主要控制变量,通过调节这两个变量可满足不同条件下的织造工艺需求,并为打纬机构尺度及结构设计提供理论参考。
In order to deal with the adverse effects caused by the imbalance of inertia beating force and beating resistance of beating-up mechanism,the mechanical model of beating-up mechanism is established,and the adjustment method for the structural direction of beating-up mechanism is determined by taking the four-link beating-up mechanism as an example,and the quantitative simulation analysis is carried out under the consideration of space limitation.Comparative analysis is conducted on the effects of different adjustment schemes on driving torgue and output torque,and the motion characteristics brought about by different rod length design parameters are analyzed.The simulation results show that the inertia beating-up force can be effectively regulated by adding balancing members and changing the rod length ratio.When the beating-up force is insufficient,the beating torque is increased by about 14.5%and 3%after rotational inertia and scale adjustment respectively,and increased by about 17.8%after joint adjustment.When the beating-up force is too large,the torque is reduced by about 7.6%after scale adjustment.The rotational inertia and angular acceleration are the main control variables of the inertia beating force,which can be adjusted to meet the requirements of weaving process under different conditions,and provide theoretical reference for the scale and structure design of the beating-up mechanism.
作者
袁汝旺
艾明
YUAN Ruwang;AIMing(School of Mechanical Engineering,Tiangong University,Tianjin 300387,China;Tianjin Key Laboratory of Advanced Mechatronics Equipment Technology,Tiangong University,Tianjin 300387,China)
出处
《天津工业大学学报》
CAS
北大核心
2024年第4期82-88,共7页
Journal of Tiangong University
基金
天津市自然科学基金资助项目(18JCYBJC20200)
中国纺织工业联合会应用基础研究项目(J202003)。
关键词
惯性打纬力
转动惯量
角加速度
驱动力矩
四连杆打纬机构
inertia beating-up force
rotational of inertia
angular acceleration
driving moment
four-link beating-up mechanism
