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摩托车后驱动链条声改善初探

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针对采用滚子链进行驱动的摩托车后驱动系统中链轮与链条之间产生的啮合机械声进行了系统的分析.首先通过多体动力学仿真的方式解析了该声音的冲击过程.利用此多体动力学模型探讨了发动机小链轮齿形设计参数对声音的影响并通过试验方式进行验证.特别地,针对含缓冲橡胶形式的发动机小链轮与链条之间的啮合噪声进行了分析.阐述了随行驶里程的增加,链条声恶化程度与缓冲橡胶磨损量之间的关系.建立了发动机小链轮缓冲橡胶面压分析的静力学模型,并提出了改善发动机小链轮缓冲橡胶面压的具体方案,从而减小后驱动链条声.
A Preliminary Study on the Improvement of Motorcycles'Rear Drive System Chain Noise
With respect to the chain noise of motorcycles which adopt roller chain as the rear drive sys-tem,a systematic analysis is carried out to study the meshing mechanical noise between the chain and the sprocket.First,the impact process of the noise is illustrated through a multi-body dynamic simulation.With the help of this dynamic model,the influence that engine sprocket tooth profile parameters have on the noise was discussed and verified by experiment.In particular,the meshing noise between the engine sprocket which contains a damping rubber and the chain was analyzed.With the increase of driving mileage,the relationship between the deterioration of the chain noise and the wear of the damping rubber was also mentioned.A static force model was established to calculate the surface pressure of the damping rubber and hence particular countermeasures were pointed out to eliminate the surface pressure so as to reduce the chain noise to an acceptable level.

Chain noiseMechanic noiseEngine sprocketSurface pressureDamping rubber

钱勉、朱冬文

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江门市大长江集团有限公司豪爵研发中心 广东 江门 329000

链条声 机械声 发动机小链轮 面压 缓冲橡胶

2024

小型内燃机与车辆技术
天津大学

小型内燃机与车辆技术

CSTPCD
影响因子:0.261
ISSN:1671-0630
年,卷(期):2024.53(2)
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