胶辊式砻谷冲击隔离系统隔振技术分析与仿真
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作者单位:

1.西华大学 现代农业装备研究院;2.西华大学 机械工程学院

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中图分类号:

[S226.2]

基金项目:

四川省科技厅项目(2019YFN0106;2019GFW007)


Analysis and Simulation of Vibration Isolation Technology of Impact Isolation System for Rubber Roller Hulling
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Xihua University,Institute of modern agricultural equipment

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    摘要:

    针对胶辊式砻谷振动噪声大的问题,进行了胶辊式砻谷冲击隔离系统隔振技术的研究。首先设计实验确定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,得到安装冲击隔离系统后激励力的传递率为49.5%,验证了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。

    Abstract:

    Aiming at the problem of high vibration and noise of rubber roller hulling, 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 is determined as the main excitation source of hulling operation, and then the force amplitude of the excitation force is 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 is proposed. Finally, the static compression characteristics and torsional characteristics of the impact isolation system are 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 is carried out, and the displacement curve of the cot under pulse impact and the stress curve of the cot installation shaft disc are obtained. Comparing the maximum stress of cot installation shaft disc with the theoretically calculated excitation force amplitude, it is obtained that the transmission rate of the excitation force after installing the impact isolation system is 49.5%, It is verified that installing the impact isolation system composed of impact isolators in parallel in the cot has a beneficial effect on reducing the transmission of vibration.

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粟超,廖敏,杨亚军,等. 胶辊式砻谷冲击隔离系统隔振技术分析与仿真[J]. 科学技术与工程, , ():

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  • 收稿日期:2021-09-27
  • 最后修改日期:2022-05-08
  • 录用日期:2022-05-13
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