这次毕业设计,我设计的是5T 重轮式装载机的装载机构（参照ZL50型轮式装载机）。
首先分析的是装载机的发展状况及其发展前景.装载机是一种应用甚为广泛的工程机械,对于它的研究越来越专业化,应用也是越来越广泛.正是由于装载机在国民经济的各个部门发挥的重要作用,所以,有必要对装载机的设计坐进一步的研究,从而进行了这次设计。
通常,按使用场合的不同,分成露天用装载机和井下用装载机;按行走系统的不同,分成轮式装载机于履带式装载机.由于装载机的品种较多,不能各个介绍,本次毕业设计主要完成的是露天轮式装载机的设计。
装载机的设计可以主要的分成以下几个部分；
1) 总体参数的选择和总体布置,装载机的总体设计就是根据其主要用途,作业条件及生产情况,合理的选择机型,性能参数,整机尺寸及总成的结构形式,并进行合理的布置.
2) 工作装置设计:.工作装置设计是本次设计的一个主要内容.工作装置的设计对整个装载机的用途也有很大的影响,所以要经过仔细的选择与计算.
3) 零件的工艺分析,使设计与加工联系起来.不仅要考虑设计的科学性,合理性,也要适当的考虑实际加工的难易程度.因为设计的目的就是能使其应用与生产领域,在满足加工要求的前提下,尽量节约生产成本和提高生产效率.
4) 工作装置液压系统设计,工作装置液压系统在完成装载机构设计后进行，装载机内部空间有限，所以设计时要合理布局。.
以上就是总体及工作装置设计的主要内容.通过这次设计,我学到了很多知识.很感谢这一段时间以来给我帮助的老师和同学们,谢谢!
关键词：轮式装载机；液压系统；反转六连杆机构
ABSTRACT
In this time of graduate design, the subject of my is the tractor loader.
Firstly, my tusk is get some knowledge about the condition of the tractor loaders. The tractor loader is a kind of machine which be widely used .The research of them is getting more and more important.
Then, I analysis the sort and the use of some kinds of the loaders .Generally speaking, according to the difference of the work-yard we have the loaders which be used in the open air and the loaders which be used in silo operating. According to the difference of moving system, we have the tractor loader and the caterpillar loader. The graduate design is the wheel loader.
After that, we begin to select the population parameter of tractor loader do general arrangement. The integrated design of tractor loader is according to it’s major use, the running conditions and production capacity, then get a proper choice of it’s model number, size and structural style. Then, we can get a proper arrangement.
After the general arrangement we can design the work system of the tractor loader. It is a important content and have a great effect on the use of the tractor loader. So it must be selected carefully.
In the next section, we begin to analysis the technology of a part. By this way, we can get a contact between the design and the treatment. In this process, we should consider the scientific aspect of the design and the practicability of treatment. Because the purpose of the design is it’s application, we should pay attention to the practicability of treatment, the cost of production and production rate.
Working device hydraulic system design, installation work in the hydraulic system after completing loading mechanism design, the limited space within the loader, designed to be rational distribution
Above is the major content of mine subject. By this graduated design, I have learned some useful knowledge. Thanks very much, my teachers and my classmates who had helped me.
Key words: wheel loader；hydraulic system；reversing six connecting rod
mechanism
目 录
绪论……………………………………………………………………..4
第一章 装载机的发展状况及发展前景……………………………4
1目前我国轮式装载机的概况……………………………………4
1.2 国外装载机的发展状况……………………………………4
1.3 载机的发展历史及前景……………………………………5
第三章 轮式装载机装载机构的设计要求：
3.1 装载机的总体布置……………………………………………13
第四章 液压系统的设计和计算……………………………………16
4.1 转斗油缸的设计………………………………………………16
4.2 结构型式选择…………………………………………………17
4.3 工作装置结构设计……………………………………………18
4.4 铲斗的设计……………………………………………………24
4.5 工作装置的强度设计…………………………………………27
第七章 参考文献……………………………………………………35
