摘要
为研究胶辊式砻谷工作时振动噪声大的问题,进行了胶辊式砻谷冲击隔离系统隔振技术的研究,通过设计实验验证砻谷装置工作时产生的机械冲击激励为砻谷作业的主要激振源,然后通过理论求解计算出激励力的力幅,再根据胶辊砻谷的工作特性和减少振动传递的要求,提出了一种在胶辊内安装由隔冲器对压并联构成的冲击隔离系统,最后在ADAMS中对冲击隔离系统进行静态下的受压特性和扭转特性仿真分析,验证了冲击隔离系统工作的稳定性;对冲击隔离系统进行脉冲冲击下的动力学仿真分析,获得了胶辊在脉冲冲击下的位移曲线和胶辊安装轴盘受力曲线,将轴盘受力最大值与理论计算出的激励力幅比较。结果表明:安装冲击隔离系统后激励力的传递率为49.5%。可见在胶辊内安装由隔冲器对压并联构成的冲击隔离系统对减少振动的传递具有有益效果。
In order to study the problem of large vibration and noise when the rubber roller type hulling works, the vibration isolation technology of rubber roller hulling impact isolation system was studied. Firstly, the mechanical impact excitation generated during the operation of the hulling device was determined as the main excitation source of hulling operation, and then the force amplitude of the excitation force was calculated through theoretical solution. Then, according to the working characteristics of rubber roller hulling and the requirements of reducing vibration transmission, an impact isolation system composed of impact isolators in parallel was proposed. Finally, the static compression characteristics and torsional characteristics of the impact isolation system were simulated and analyzed in ADAMS to verify the stability of the impact isolation system. The dynamic simulation analysis of the impact isolation system under pulse impact was carried out, and the displacement curve of the cot under pulse impact and the stress curve of the cot installation shaft disc were obtained.The maximum stress of cot installation shaft disc with the theoretically calculated excitation force amplitude was compared. The results show that the transmission rate of the excitation force after installing the shock isolation system is 49.5%. It can be seen that installing an impact isolation system composed of parallel pressure isolators in the rubber roller has a beneficial effect on reducing the transmission of vibration.
作者
粟超
廖敏
杨亚军
刘鹏
SU Chao;LIAO Min;YANG Ya-jun;LIU Peng(Institute of Modern Agricultural Equipment,Xihua University,Chengdu 610039,China;School of Mechanical Engineering,Xihua University,Chengdu 610039,China)
出处
《科学技术与工程》
北大核心
2022年第23期9982-9989,共8页
Science Technology and Engineering
基金
四川省科技厅项目(2019YFN0106,2019GFW007)。
关键词
冲击隔离
隔冲器
胶辊式砻谷
隔振技术
仿真分析
impact isolation
impact isolator
rubber roller hulling
vibration isolation technology
simulation analysis
