齿轮传动激励下采煤机摇臂振动特性

doi:10.12068/j.issn.1005-3026.2018.01.022

东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (1): 108-112.DOI: 10.12068/j.issn.1005-3026.2018.01.022

齿轮传动激励下采煤机摇臂振动特性

张睿¹，张义民²，朱丽莎¹，赵春雨¹

(1.东北大学机械工程与自动化学院，辽宁沈阳110819; 2.沈阳化工大学机械工程学院，辽宁沈阳110142)

收稿日期:2016-07-19 修回日期:2016-07-19 出版日期:2018-01-15 发布日期:2018-01-31
通讯作者: 张睿
作者简介:张睿(1989-)，男，辽宁抚顺人，东北大学博士研究生；张义民(1958-)，男，吉林长春人，沈阳化工大学教授，博士生导师，教育部“长江学者奖励计划”特聘教授；赵春雨(1958-)，男，辽宁黑山人，东北大学教授，博士生导师.
基金资助:
国家重点基础研究发展计划项目(2014CB046303)；国家自然科学基金资助项目(51405072).

Vibration Characteristics for the Rocker Arm of Shearer with Gear Meshing Excitation

ZHANG Rui¹， ZHANG Yi-min²， ZHU Li-sha¹， ZHAO Chun-yu¹

1.School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China; 2.Shenyang University of Chemical Technology， Shenyang 110142， China.

Received:2016-07-19 Revised:2016-07-19 Online:2018-01-15 Published:2018-01-31
Contact: ZHANG Yi-min
About author:-
Supported by:
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摘要/Abstract

摘要： 为研究采煤机摇臂齿轮系统啮频耦合规律及齿轮传动激励下摇臂壳体振动特性，进行摇臂振动特性实验.根据齿轮参数，计算啮合频率，得到齿轮传动激励频率成分.通过有限元模型及实验模态分析，得到摇臂固有特性.通过振动特性实验，测量摇臂振动加速度，进行时域及频域分析，得到传动系统啮频耦合规律.结果表明:传动系统启动冲击约为重载截割冲击的2倍；平稳运行时行星级振动峰值最大；摇臂形成了以第3、第5阶振型为主的弹性振动；行星级与惰轮级结合处频率耦合作用最强，主要形式为各特征频率倍频组合频率.频率耦合是造成摇臂共振的主要原因.

关键词: 采煤机摇臂, 实验模态分析, 振动特性实验, 频率耦合, 内激励

Abstract: Experimental research was carried out to study the meshing frequency coupling laws of gear system and vibration characteristics of the rocker arm shell under the gear meshing excitation. According to the gear parameters， the meshing frequency of the system was calculated and the harmonic frequency components were obtained. Based on the finite element model and experimental modal analysis， the inherent characteristics of the rocker arm shell was obtained. Through the rocker arm dynamic characteristics experiment， the vibration accelerations were obtained. Time domain and frequency domain analysis were carried out to get the transmission system frequency coupling rules. Results show that the impact of starting is about 2 times of that of heavy load. The vibration peak occurs on the planetary transmission in steady operation. The main vibration modes of rocker arm are the third and the fifth stages. The joint of planetary and idler has the strongest coupling frequency and the main form of coupling is the combination of characteristic frequencies. Frequency coupling is one of the main reasons that lead to resonance of rocker arm.

Key words: rocker arm of shearer, experimental modal analysis, vibration characteristics experiment, frequency coupling, internal excitation

中图分类号:

TD421

张睿，张义民，朱丽莎，赵春雨. 齿轮传动激励下采煤机摇臂振动特性[J]. 东北大学学报:自然科学版, 2018, 39(1): 108-112.

ZHANG Rui， ZHANG Yi-min， ZHU Li-sha， ZHAO Chun-yu. Vibration Characteristics for the Rocker Arm of Shearer with Gear Meshing Excitation[J]. Journal of Northeastern University Natural Science, 2018, 39(1): 108-112.

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齿轮传动激励下采煤机摇臂振动特性

Vibration Characteristics for the Rocker Arm of Shearer with Gear Meshing Excitation

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