设计描述：
文档包括:
word版本说明书一份,82页,28000字左右.
英文翻译一份.

CAD版本图纸，共6张:

目    录
第一章 设计原则及方案的选择……………………………………………………1
1.1 行走装置设计原则……………………………………………………………1
1.2轮胎式挖掘机行走装置的结构形式…………………………………………3
1.3液压系统…………………………………………………………………………6
1.4轮胎式行走装置的传动………………………………………………………8
1.5轮胎式行走装置的构造………………………………………………………11
1.6 轮胎的选择……………………………………………………………………14
1.7 轮辋的选择……………………………………………………………………16
1.8 支腿的布置与构造……………………………………………………………16
第二章 传动系的设计…………………………………………………………………21
2.1 选择液压马达类型、行走速度及传动比…………………………………21
2.2 实际速度及牵引力……………………………………………………………23
2.3 列出挖掘机行走装置诸参数………………………………………………23
第三章 变速箱……………………………………………………………………………25
3.1 低速档齿轮设计………………………………………………………………25
3.2 高速档齿轮设计………………………………………………………………31
3.3 齿轮变位………………………………………………………………………36
第四章  变速箱其他部件设计……………………………………………………39
4.1 啮合套设计……………………………………………………………………39
4.2 轴和轴承设计  ………………………………………………………………40
4.3 轴承、键和连轴器的选择……………………………………………………41
4.4 润滑和冷却 ……………………………………………………………………43
第五章 轮边减速器……………………………………………………………………44
5.1 传动方案的选择………………………………………………………………44
5.2配齿计算…………………………………………………………………………44
5.3 配齿中希望……………………………………………………………………48
5.4 行星传动系设计………………………………………………………………48
第六章 爬坡能力的校核………………………………………………………………52
    6.1 行走马达输出扭矩计算……………………………………………………52
     6.2 行走牵引力计算……………………………………………………………52
6.3  检验行走性能………………………………………………………………53
第七章 转弯半径校核…………………………………………………………………54
7.1 转向器选择……………………………………………………………………54
7.2 转向梯形结构设计……………………………………………………………55
第八章  花键的校核…………………………………………………………………58
第九章  行走系统设计结果评估…………………………………………………60
参考文献……………………………………………………………………………………61
致谢…………………………………………………………………………………………62
附录…………………………………………………………………………………………63

11T液压机械式轮胎挖掘机行走装置设计
摘要
本次毕业设计的主要目的是熟悉机械设计的一般过程，提高理论知识和实践知识的综合运用能力。挖掘机是一种重要的工程机械，它的广泛应用对于减轻劳动量，保证工程质量，加快工程进度，提高劳动生产率起了巨大的作用。此次的毕业设计主要是针对液压机械挖掘机的行走装置进行设计。轮式液压挖掘机的行走装置有液压泵，液压马达，减速器，轮边减速器，转向器等系统组成。液压系统是按照挖掘机各个机构和装置的传动要求。把各种液压组件用管路有机的连接起来的组合体，其功能是将发动机的机械能转化为液压能，经过传送后，再将其转化为机械能，以完成各种动作。
在设计中结合具体实际及参考企业的一些相关机型，选择了传动系方案，可以满足一般使用要求，并做到结构简单、维修方便。对变速箱及轮边减速器进行了具体设计。初步校核了齿轮等结构件的强度，满足寿命要求。
关键字：行走系统  变速箱  轮边减速  转向桥  液压系统

Th installment design of 11 ton hydraulic pressure mechanical type tire excavator walks
Abstract
The main purpose of the topic of design project for graduation is to be familiar with the general process of mechanical design and to enhance the comprehensive capacity of using theoretical and practical knowledge. Excavator is important engineering machinery. Its wide application played a tremendous role to reducing the volume of labor and to ensuring project quality and to accelerating played and to accelerating progress and to increasing productivity. This graduation design is focuses on the running gear of the hydro-mechanical excavator .The wheeled running gear include the system of fluid operated pump、fluid motor、speed reducer and steering system .Hydraulic system is a portfolio organic body which is used to connect the lines of hydraulic components and which is based on the request of the various agencies and the transmission device of an excavator. Its function is that transforming mechanical energy into hydraulic can and transmitting it the transforming it into mechanical energy again to complete various moves.
    Bonding with the practical situation and some coherent machine model of Liebherr I chose the power transmission plan specifically during the design procedure to satisfy the general operation requirements, and achieved the structure simply, the service is convenient. And nearby turn decelerated to the gear box has carried on the concrete design. Initially examined the gear is structuralism intensity, satisfies the life request.

Key words: running system；the gear box ；nearby the wheel decelerates；steering axle； hydraulic system