掘进机电控箱减振系统建模及参数匹配分析

发布时间：2018-05-03 00:48

本文选题：掘进机 + 电控箱　；参考：《振动.测试与诊断》2017年05期

【摘要】：掘进机作业工况恶劣,机体振动易导致机载振动敏感部件电控箱内电气元件失灵,进而影响电控箱的可靠性。为研究电控箱的振动特性,建立了掘进机电控箱阻尼缓冲模型,以电控箱的垂向加速度和俯仰角加速度作为评价指标,对电控箱减振器的刚度系数和阻尼系数进行了参数匹配分析,综合考虑参数间的相互影响,确定了电控箱减振器的最佳匹配参数。匹配后的电控箱垂向振动加速度均方根和俯仰角加速度均方根与原减振器相比分别减小了16.05%,9.45%。该研究对掘进机电控箱减振器结构改进以及动态特性分析具有参考价值。
[Abstract]:The working condition of the roadheader is very bad, and the vibration of the machine body can easily lead to the failure of the electrical components in the electronic control box of the airborne vibration sensitive parts, thus affecting the reliability of the electronic control box. In order to study the vibration characteristics of the electronic control box, the damping buffer model of the electric control box of the tunneling machine is established. The vertical acceleration and the pitch angle acceleration of the electric control box are taken as the evaluation index. The parameter matching analysis of the stiffness coefficient and damping coefficient of the shock absorber of the electronic control box is carried out. The optimum matching parameters of the shock absorber of the electronic control box are determined by considering the mutual influence of the parameters. Compared with the original shock absorber, the RMS root of vertical vibration acceleration and the root-mean-square root of pitch acceleration of the matched electronic control box are reduced by 16.05 and 9.45, respectively. This research has reference value for the improvement of structure and dynamic characteristic analysis of electronic control box shock absorber of roadheader.
【作者单位】：太原科技大学机械工程学院;晋城金鼎天地煤机装备有限责任公司;
【基金】：山西晋城市科技计划资助项目(201501004-11) 国家青年科学基金资助项目(51405323)
【分类号】：TD632.2

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