Research on longitudinal dynamic characteristics of wheel-rail belt conveyor under impact load

IF 4.9 2区工程技术 Q1 ACOUSTICS Journal of Sound and Vibration Pub Date : 2025-07-07 Epub Date: 2025-03-16 DOI:10.1016/j.jsv.2025.119070

Hao Shi , Chunfa Shi , Chao Sun , Zhengli Li , Liying Song , Yuan Zhang , Mingyu Song , Guiwen Chu , Zhuang Wang

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Abstract

Belt conveyors are essential in coal mining production, but indentation resistance accounts for over 50% of energy consumption. To address this, our team developed a wheel-rail type conveyor that replaces traditional idlers with trolley walking structures. Through integrated theoretical analysis, numerical simulation, and experimental validation, the effects of belt speed, trolley distance, rail gap width, and rail height differential on longitudinal vibration characteristics were systematically investigated. Vibration acceleration increases by about 30% with belt speed rises from 1 m/s to 2 m/s. Increasing trolley distance from a baseline of 2 m raises vibration acceleration. Rail gap traversal induces 3.5-fold amplitude elevation compared to flat rail segments. Rail height differential emerges as the predominant factor, exhibiting positive correlation with vibration acceleration. The trends observed in the numerical simulation data align well with those from experimental tests. The research provides valuable insights for optimizing wheel-rail conveyors, addressing energy consumption issues, and improving operational efficiency.

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冲击载荷作用下轮轨带式输送机纵向动态特性研究

带式输送机在煤矿生产中至关重要，但压痕阻力占能耗的 50%以上。针对这一问题，我们的团队开发了一种轮轨式输送机，用小车行走结构取代了传统的托辊。通过综合理论分析、数值模拟和实验验证，系统研究了皮带速度、小车距离、轨道间隙宽度和轨道高度差对纵向振动特性的影响。皮带速度从 1 m/s 提高到 2 m/s 时，振动加速度增加了约 30%。小车距离从基线 2 米开始增加，振动加速度也随之增加。与平轨段相比，轨道间隙穿越引起的振幅升高了 3.5 倍。轨道高度差是主要因素，与振动加速度呈正相关。数值模拟数据中观察到的趋势与实验测试的趋势非常吻合。这项研究为优化轮轨输送机、解决能耗问题和提高运行效率提供了宝贵的见解。

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来源期刊

Journal of Sound and Vibration 工程技术-工程：机械

CiteScore

9.10

自引率

10.60%

发文量

551

审稿时长

69 days

期刊介绍： The Journal of Sound and Vibration (JSV) is an independent journal devoted to the prompt publication of original papers, both theoretical and experimental, that provide new information on any aspect of sound or vibration. There is an emphasis on fundamental work that has potential for practical application. JSV was founded and operates on the premise that the subject of sound and vibration requires a journal that publishes papers of a high technical standard across the various subdisciplines, thus facilitating awareness of techniques and discoveries in one area that may be applicable in others.