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1、小型液压驱动履带式车辆设计专 业：机械设计及其自动化学 生： 徐 伟指导教师： 秦永法完成日期：2021 年 6 月 3 日扬州大学机械工程学院中文摘要履带式车辆具有接地面积大、接地比压小、附着性能好、爬坡能力强、转弯半径小、跨沟越埂能力强等特点，特别是液压系统驱动的履带式车辆其因为在调节功能和安装布局方面均有特殊的优点，因此，在农业、工程建筑、现代军事等领域发挥着十分重要的作用。履带式工作车辆兼具行走和作业两种功能，应用日益广泛。本论文以企业委托的一种中功率履带移动式排灌车的研制工程为背景，以车辆工程、机械设计与制造、液压技术等理论为根底，对履带式工作车辆的性能建模、动力共用与切换方法、关键
2、机构的设计方法等共性问题进行了深入的研究。本文主要研究内容包括：1、对履带式工作车辆的总体布局、动力共用匹配与切换进行了研究。分析了履带式工作车辆总体布局的方法和遵循的原那么，建立了履带式工作车辆在不同工作情况下，动力匹配的计算模型，构建并比拟了履带式工作车辆动力切换的方案。2、对与履带式车辆行走装置及机械分动装置做了深入研究，设计出一种针对本履带车辆工作条件的行走机构及满足此履带车工作及行走时的动力转换的有效的分动装置。3、针对履带式工作车辆兼具行走和作业两种功能的特点，将机械传动与液压传动相结合，形成了履带式工作车辆行走系与传动系的设计方法。4、建立了台车架的三维模型，对台车架进行了静力特
3、性分析等。关键词：履带式车辆，液压驱动，性能分析，设计方法 AbstractTracked vehicles have the great contract area and the little ratio of ground pressure; also theyhave good performance of adhesion and climbing ability, meanwhile, the small turning radius, better abilities of crossing a low bank of earth between fields and so on
4、 are the characteristics oftrack-laying vehicles. In particular the hydraulic system of the crawler drive vehicles because of its function in regulating both the distribution and installation of the special advantages . Therefore, they play a very important role in agriculture, construction, modern
5、military and other fields. Tracked working vehicles contain two main functions, walkingand working, with the increasingly widespread application.This paper commissioned by the enterprise to power in a tracked vehicle mobile Drainageand Irrigation Development Project as the background，To vehicle engi
6、neering, mechanical design and manufacturing, hydraulic technology, and other theory，crawler-type vehicles on the work of modeling, power sharing and switching methods, the design of key institutions, such as common problems for an in-depth study。The main research of this article contains as below:1
7、、The research is about the overall layout, power sharing and the match switched on of the Crawler-type vehicles. The dynamic model of the match was built up when tracked vehicles work in different circumstances.The program of the driving force tracked vehicles to switch was compared and constructed.
8、2、With the tracked vehicles plant and machinery sub-device to do an in-depth research, design a vehicle for the working conditions of the track and the walking track to meet the car and walking the effective driving force for the conversion of the sub-device.3、Tracked working vehicles contain two ma
9、in functions, walking and working.Design methods about running system and transmission system are formed by combining mechanically-driven and hydraulic transmission.4、The 3d model of the frame was established to carry out static analysis and model analysis of the frame and so on. Key words：Tracked v
10、ehicles，Hydraulic drive，Performance analysis, Design method目 录中文摘要. IAbstract. II第一章 绪论. 11.1 课题的来源及意义. 1 课题的来源. 1 课题的意义. 11.2 选题的背景. 1 履带式车辆的应用现状与研究概况. 1 课题研究的主要内容. 31.3 本章小结. 5第二章 履带式工作车辆的总体布局及性能研究.62.1 引言. 62.2 总体布局原那么及形式. 6 总体布局的原那么. 6 总体布局的形式. 72.3 液压履带式车量的总体布局. 7 车架与分动器及柴油机的装配关系. 8 车架与水泵装配关系. 92.4 履带式车辆的机动性能分析. 11 直线行驶分析.
