矿山刮板输送机在过弯段工况下的纵、扭振动分析

IF 0.7 Q4 ENGINEERING, MECHANICAL

Journal of Vibroengineering Pub Date : 2023-01-20 DOI:10.21595/jve.2022.22977

C. Xie, Zhi-Xiang Liu, M. Xie

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引用次数: 0

摘要

考虑到刮板在通过弯曲段时会产生纵向和扭转摆振，对刮板输送机的运动特性有很大影响，本文首次研究了刮板输送机在过弯工况下的纵向和扭转摆耦合振动特性。首先，基于Voigt模型和逐点张力法，建立了刮板链系统扭转摆振动的简化模型。然后，研究了刮板弯曲条件下刮板组振动和链条张力的变化规律。再次，通过扭摆振动的影响区域和衰减特性，建立了扭摆振动缩略图模型。最后，在扭摆振动简称模型的基础上，建立了刮板链系统的纵向和扭转耦合振动动力学模型，研究了刮板输送机在弯曲段上时的整体纵向和扭转振动特性。本文的结论为更好地了解煤矿刮板输送机的运行特点提供了理论依据。

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Analysis of longitudinal and torsional vibration of mining scraper conveyor under the over bending section working condition

Considering that the scraper will produce longitudinal and torsional pendulum vibration when passing through the bending section, and have a great influence on the motion characteristics of the scraper conveyor, this paper studies the longitudinal and torsional pendulum coupling vibration characteristics of the scraper conveyor under the working condition of over-bending section for the first time. Firstly, the simplified model of torsional pendulum vibration of scraper chain system is established based on Voigt model and point-by-point tension method. Then, the change law of scraper group vibration and chain tension under the condition of scraper bending is studied. Thirdly, through the influence area and attenuation characteristics of torsional pendulum vibration, the thumbnail model of torsional pendulum vibration is constructed. Finally, the longitudinal and torsional pendulum coupling vibration dynamic model of the scraper chain system is constructed based on the torsional pendulum vibration abbreviation model, and the overall longitudinal and torsional pendulum vibration characteristics of the scraper conveyor are studied when the scraper is over the bending section. The conclusion of this paper provides a theoretical basis for better understanding the operation characteristics of scraper conveyor in coal mine.

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来源期刊

Journal of Vibroengineering 工程技术-工程：机械

CiteScore

1.70

自引率

0.00%

发文量

审稿时长

4.5 months

期刊介绍： Journal of VIBROENGINEERING (JVE) ISSN 1392-8716 is a prestigious peer reviewed International Journal specializing in theoretical and practical aspects of Vibration Engineering. It is indexed in ESCI and other major databases. Published every 1.5 months (8 times yearly), the journal attracts attention from the International Engineering Community.