液压系统图
摘要
近些年以来，中国经济快速发展，城市发展建设需要，在各个领域都需要高空作业车，而且有一些型号出现了供不应求，生产不足的现象。因此我想设计高空作业车应尽量采用轻型环保结构，降低整车装备质量，更加合理的去设计工作臂的结构，从而去满足城市建设的需求。
近几年以来，中国的高空作业车研究能力显着提高，首先高度上取得了突破，同时，研究高空作业车的改装不仅仅可以促进这个行业的发展，还能对特种车辆的研发及机构和液压的设计积累一定的经验。这次的课题设计设计的是一款折迭臂式10m高空作业车，主要对作业车的举升机构以及液压系统进行了设计。举升机构主要就是上下臂的长度，截面尺寸的设计，同时对设计结果进行了校核。液压系统主要就是上下臂及支腿液压缸的设计，液压马达和液压泵的选择以及其他部分的设计。
10m高的高空作业车能够应用的场合很多，在工程建设，电力抢修，设备维护上能够发挥出它的能力。这样的高空作业车小巧，对于环境的变化比较能适应。
关键词：高空作业车；高空作业臂；液压系统；改装设计
ABSTRACT
In recent years, China's rapid economic development, urban development and construction needs and the needs of high-altitude vehicles in various fields, and there have been some models in short supply and insufficient production. Therefore, I hope to design the lightweight environmental protection structure for aerial working vehicles as much as possible, reduce the quality of vehicle equipment, and design the structure of the working arm more reasonably to meet the needs of urban construction.
This design main is the height of 10 meters aloft work vehicle, to meet the high operating on the premise that for aloft work arm,turntable,hydraulic parts design: First choice under the requirements of the use of operating arm of the types of materials; Second, based on the height of the largest operations to determine the upper and lower arm length; After Analysis to determine the intensity of use of the arm section size and fuel tanks articulated position; further strength, stiffness, Stability of Verification, check the operating arm size whether it meets the requirements; Turntable and hydraulic parts also principles want to calculate and checking. In recent years, China’s research capacity for aerial work vehicles has been significantly improved, and breakthroughs have been made at the highest altitudes. At the same time, research on the conversion of aerial vehicles has not only promoted the development of this industry, but also enabled the development and organization of special vehicles and hydraulics. The design has accumulated some experience. This graduation project designed and designed a folding arm type 10m aerial work vehicle and designed the lifting mechanism and hydraulic system of the work vehicle. The lifting mechanism is mainly the length of the upper and lower arms, the design of the section size, and the check of the design results. The hydraulic system is mainly the design of the upper and lower arm and leg hydraulic cylinders, the selection of hydraulic motors and hydraulic pumps, and the design of other parts.
The 10m high aerial vehicles can be used in many places, and can exert its capabilities
in the construction of projects, repair of power, and maintenance of equipment. Such aerial vehicles are small and adaptable to changes in the environment.
Key words: aerial working vehicle; aerial working arm; hydraulic system; retrofit design
目录
摘要1
ABSTRACT 3
第1章绪论1
1.1概述1
1.2高空作业车的发展现状2
1.2.1专用车的现状2
1.2.2我国高空作业车的现状和发展2
1.3高空作业车的组成4
1.3.1工作装置5
1.3.2金属结构5
1.3.3控制系统5
1.3.4动力传动装置5
1.4本课题所研究的任务5
1.5本课题研究的意义6
第2章总体方案设计7
2.1总体设计要求7
2.2其他要求7
2.3重点解决的问题7
2.4确定液压缸布置的形式7
2.5本章小结8
第3章底盘的选择9
3.1高空作业车底盘的类型9
3.2底盘的选择9
3.3本章小结10
第4章高空作业车车臂的设计11
4.1材料的选择11
4.2上下臂长度的计算11
4.3确定上臂液压缸的位置12
4.4确定下臂液压缸的位置12
4.5确定上臂截面尺寸大小12
4.5.1对上臂进行受力分析12
4.5.2确定上臂截面尺寸大小14
4.5.3对上臂进行强度校核15
4.6确定下臂截面尺寸大小16
4.6.1对下臂进行受力分析16
4.6.2计算下臂的截面尺寸18
4.6.3对下臂进行强度校核19
4.7本章小结20
第5章液压系统的设计23
5.1液压缸的设计计算23
5.1.1下臂液压缸的最大载荷23
5.1.2上臂液压缸的最大载荷23
5.1.3支腿液压缸的最大载荷23
5.1.4确定系统工作压力25
5.1.5确定液压缸的内径26
5.1.6液压缸缸筒壁厚和外径计算26
5.1.7确定液压缸最大密封压强和壁厚的校核27
5.1.8液压缸活塞杆直径29
5.1.9校核液压缸活塞杆强度29
5.1.10校核液压缸活塞杆稳定性30
5.1.11液压缸的选择31
5.2液压马达的选取31
5.3液压泵的选择31
5.4其他辅助元件的选择32
5.4.1油箱32
5.4.2联轴器32
5.5本章小结33
结论34
参考文献35
致谢36
附录37
字数统计
