农业装备与车辆工程2026，Vol.64Issue(1)：49-54,6.DOI:10.3969/j.issn.1673-3142.2026.01.007
某青贮机械皮带异常振动问题研究及优化
Research and optimization of abnormal vibration problem of a certain silage machinery belt
余元强 1崔震 2刘振祥 2秦翊玮2
作者信息
- 1. 湖北工业职业技术学院,湖北 十堰 442000
- 2. 合智数创(山东)科技开发有限公司,山东 日照 276801
- 折叠
摘要
Abstract
As a key component of the transmission system in agricultural machinery,the rationality of drive belt design was directly associated with the NVH performance and transmission efficiency of the entire vehicle.During the development of a certain silage machinery,vehicle resonance problems caused by improper belt design were encountered.To solve this problem,systematic research on cause diagnosis and solution verification was carried out through vehicle vibration tests and belt frequency tests.Analysis revealed that the root cause of resonance was the coupling between the rotational frequency range(30.0～35.8 Hz)of the six-cylinder engine and the natural frequency(34～35 Hz)of the left section of the fan belt,and the vibration source was mainly concentrated in the spring system composed of the fan tensioner.A key research finding was that the system was prone to resonance when the ratio of the belt's static frequency to its dynamic frequency was in the range of 1.51～1.59.To address this issue,an optimization scheme was proposed,which realized segmental frequency adjustment by modifying the tensioner position and introducing belt frequency calculation in the initial design stage.After verification,the risky frequency band was successfully shifted to the safe range of 40～45 Hz,and effective"frequency avoidance"design was achieved.This not only solved the specific engineering problem but also provided a methodological reference with frequency ratio as the core guiding criterion for the dynamic design and matching of transmission systems in similar machinery.关键词
青贮机械/传动皮带/NVHKey words
silage machinery/transmission belt/NVH分类
机械制造引用本文复制引用
余元强,崔震,刘振祥,秦翊玮..某青贮机械皮带异常振动问题研究及优化[J].农业装备与车辆工程,2026,64(1):49-54,6.
