重型战术车辆油气悬架液压系统设计
关键词 ：油气弹簧，高度调节，刚弹性转化
毕业论文设计说明书外文摘要
Title Design of hydraulic system for heavy duty tactical vehicle hydro pneumatic suspension
Abstract
This paper mainly aiming at the actual situation of heavy tactical vehicle, the hydro pneumatic suspension system design, to realize the adjustment of the height of the body, the transformation of suspension of the elastic stiffness, and the suspension of regulation time in less than 30 seconds. Vehicles in driving requires the body to maintain a good ride. At this time, the suspension should show flexibility, and when the vehicle is stopped and the need to launch a missile, the whole body need stability. At this time, the suspension should show a rigid, so we need suspension design of rigid or elastic transformation function. On the other hand, the heavy tactical vehicles running on different pavement, the height of the body has different requirements, which requires us to design the vehicle height adjustment function. In the design process, the use of mechanical and hydraulic aspects of the basic knowledge to the entire hydraulic system design and draw its two-dimensional chart. And in the selection of the material mechanics aspects of the relevant knowledge to check parts. Finally, the oil gas spring, accumulator, hydraulic valve design and overall design of the whole system are completed..
Keywords: Oil gas spring, Height adjustment, Rigid transformation
目 次
1 绪论 3
1.1汽车悬架系统简介 3
1.2汽车悬架构件 3
1.3悬架的分类 4
1.4国内外车辆悬架研究与发展状况 6
1.5课题的目的与意义 7
1.6本课题的研究内容 7
2 重型战术车辆液压悬架设计 8
2.1.车辆悬架系统设计基本要求 8
2.2.液压系统方案确定 8
2.3液压系统重要部件及重要结构 8
2.4油气悬架系统的工作原理 10
2.5悬架安装位置 10
2.6本章小结 11
3 主要零部件选型 12
3.1液压缸参数选择 12
3.2液压泵的选择 13
3.3底盘调节时间计算 14
3.4伺服阀的选择 15
4 车身高度调节机构设计 18
4.1整车升高及升高后恢复 18
4.2整车降低及降低后恢复 19
4.3单轮调节 19
4.4锁止 19
5 悬架系统弹性元件的设计 20
5.1油气弹簧的结构 20
5.2偏频的计算 20