
2014年第3期
文章编号:10094687(2014)03000106
车辆与动力技术 Vehicle & Power Technology
高效双模逻辑机械综合传动技术研究
李慎龙,周广明,赵凯,尹华兵(中国北方车辆研究所车辆传动重点实验室,北京100072)
总第135期
摘要:针对目前液力机械综合传动系统传动效率较低,同时进一步提升传动效率难度大等问题,提出了一种高效双模逻辑机械综合传动总体方案,分析了该方案的系统结构组成,其中双模逻辑行星变速机构是该系统的关键部件,利用行星传动理论,建立了该类行星变速机构的模块化设计方法,并分析了双模逻辑行星变速机构的工作原理。对直驶和转向总体性能进行分析,计算结果表明:双模逻辑机械综合传动能有效提高传动效率,发动机功率利用率和转向行驶稳定性,
关键词:机械综合传动:双模逻辑变速机构;直驶牵引性能;转向性能
中图分类号:TJ81*0.32;TJ81*0.2
文献标识码:A
ResearchonBinaryLogicMechanicalIntegrated
Transmission withHigh Efficiency
LI Shen-long,
ZHOUGuang-ming,
ZHAOKai,
YIN Hua-bing
(Science and Technology on Vehicle Transmission Laboratory, China North Vehicle
Research Institute, Beijing 100072, China)
Abstract : The problem of current hydro-mechanical transmission for tracked vehicles is that its efficiency is relatively low and very difficult to be improved. A scheme of binary logic mechanical integrated transmission with higher efficiency is presented and its system structure components are analyzed including the key component-the binary logic planetary gearbox in the paper. The module design method is built according to the planetary gear transmission theory and explains the principle of binary logic planetary gearbox.The performance of steering and driving is analyzed and the results prove that binary logic mechanical integrated transmission is able to improve the transmission efficiency, make full use of engine power and provide much more stable steering
Key words: Integrated mechanical transmission; binary logic transmission; drive towing performance;
steering performance
当前液力机械综合传动系统效率低主要是由液力变矩器和转向泵/马达所造成的,液力变矩器最高传动效率为85%,高效工作区传动效率为80%;转向泵/马达最高机械效率为90%、容积效率为 85%,总的效率仅为76.5%.同时由于液力变矩器和转向泵/马达存在多次能量形式的转化,所以很难进一步提升该传动元件的能量传递效率,传动效率低所带来的影响是多方位的、系统性的,包括增
收稿日期:2014-07-09
作者简介:李慎龙(1982-)男,博士,研究方向为行星传动技术,万方数据
加了散热冷却系统负担、降低了系统高温环境的工作适应能力和车辆有效驱动功率利用率,且随着传动系统向高功率密度、高转速和高可靠性的发展需要,迫切需要降低传动系统的功率损失,提高传动效率,
据国外战车发展动态文献表明,美国地面车辆动力与机动性技术战略的中期目标(2017年)是32 速双模逻辑综合传动装置.这种传动装置的特点有:无需液力变矩器;精确机械转向,无需大功率