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随着农业现代化与大型化发展,对拖拉机传动系统的效率、平顺性及可靠性要求日益提高。无级变速(CVT)技术凭借其能实现发动机功率的高效匹配与无缝调速的优势,已成为大型拖拉机传动系统的关键发展方向。深入分析了拖拉机用无级变速箱(CVT)的结构及工况特点,系统识别了CVT传动系统中的关键润滑部位,包括湿式离合器、液压系统及电控系统,并对农机CVT专用油核心性能需求如稳定的摩擦特性、优异的抗磨极压保护性能、卓越的抗剪切和热氧化稳定性,以及密封材料相容性等进行详细探讨。经对比分析研究,某CVT专用油具备卓越的综合性能,可以全面满足现代大型拖拉机CVT系统的严苛应用要求,为其高效、可靠、长寿命运行提供了关键的润滑保障。
Abstract:With the advancement of agricultural modernization and the trend towards large-scale farming,the demands for the efficiency,smoothness,and reliability of tractor transmission systems have been on the rise.Continuously Variable Transmission(CVT)technology,boasting the advantages of enabling efficient matching of engine power and seamless speed regulation,has emerged as a crucial development trend for the transmission systems of large tractors. The structural and operational characteristics of CVT units employed in tractors was analyzed,and the key lubrication points within the CVT system was systematically identified,including wet clutches,hydraulic systems,and electronic control systems. Moreover,a detailed exploration was carried out regarding the core performance requirements of dedicated CVT oils for agricultural machinery,including stable friction properties,excellent anti-wear and extreme pressure protection capabilities,superior shear resistance and thermal oxidation stability,as well as compatibility with sealing materials. Through comparative analysis and research,a specific CVT oil has been found to demonstrate outstanding comprehensive possess exceptional comprehensive performance. It can fully meet the stringent application requirements of modern large tractor CVT systems,thereby providing crucial lubrication support for their efficient,reliable,and long-lasting operation.
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基本信息:
中图分类号:S219
引用信息:
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2025-12-20
2025-12-20