机械5

摘要 挖掘装载机具有特殊的结构，前方为装载机构，后方为挖掘机构。在施工场地内，只要转动一下座椅，就可以改变工作端。挖掘装载机多数用于城市和农村的道路建设、铺设电缆、电力建设工程、开山取石和各种小型建筑队所从事的建筑施工工程。挖掘装载机属于小型多功能工程机械的一种，一般在大工程完成后的小工程中使用。它可配多种工作机构和辅具，进行挖掘、铲装、路面破碎、平整场地、开挖沟渠、铺设管道等多种作业。此次设计以ZL10装载机为基础，将装载机构放在车尾，从头设计。另外，在车头加了一个挖掘机构。使其既拥有装载能力，还具有挖掘功能，实现了一机两用的目的。在设计过程中，我一直本着经济性好、适应性强、构造简略的根本准则。为了使零件的功用尽可能的好，我借鉴了浙江福威重工制造有限公司和柳工生产的CLG766型挖掘装载机。此次设计的内容有以下几个要点： 1、整机方案的确定和参数的选用； 2、工作机构的设计，其中包括铲斗、动臂、摇臂、连杆设计和动臂油缸、摇臂油缸的选取等； 3、工作机构有关零件的强度校核； 4、总体稳定性校核； 关键词：工程机械;挖掘装载机;铲斗; Abstract The excavati
ng loader has a special structure, the fro
nt is the loadi
ng mecha
nism, the rear is the excavatio
n mecha
nism. I
n the co
nstructio
n site, the job ca
n be cha
nged by tur
ni
ng the seat. Most of the excavati
ng loader for urba
n a
nd rural road co
nstructio
n, layi
ng cable, electric power co
nstructio
n project, first take Shi Yihe all sorts of all sorts of small builders are e
ngaged i
n co
nstructio
n e
ngi
neeri
ng. The excavati
ng loader is a ki
nd of small, multi-fu
nctio
nal e
ngi
neeri
ng machi
ne, which is usually used i
n small projects after big projects. It ca
n be equipped with various ki
nds of work a
nd accessories, which ca
n be excavated, shovelled, broke
n surface, flat grou
nd, excavated ditches a
nd laid pipes, etc. The desig
n is based o
n the ZL10 loader, which will be placed o
n the rear of the car a
nd desig
ned from scratch. I
n additio
n, a mi
ni
ng body is added to the e
ngi
ne. It also possesses the ability to load, a
nd also has the mi
ni
ng fu
nctio
n, realizi
ng the purpose of a machi
ne. I
n the course of desig
n, I have always bee
n i
n the basic pri
nciple of good eco
nomy, stro
ng adaptability a
nd simple co
nstructio
n. I
n order to make the fu
nctio
n of the parts as good as possible, I borrowed from zhejia
ng fuwei heavy i
ndustry ma
nufacturi
ng co., LTD., a
nd the CLG766 type mi
ni
ng loader produced by liugo
ng. Here are some of the highlights of the desig
n: The determi
natio
n a
nd selectio
n of the whole machi
ne pla
n; The desig
n of the work orga
nizatio
n, i
ncludi
ng the bucket, movable arm, rocker arm, co
n
necti
ng rod desig
n a
nd movable arm oil cyli
nder, a
nd the selectio
n of swi
ng arm oil cyli
nder, etc. The stre
ngth of the releva
nt parts of the worki
ng body; The overall stability check; Keywords: e
ngi
neeri
ng machi
nery; Excavati
ng the loader; Bucket; 目录 1.绪论1 1.1挖掘装载机简介1 1.2设计的内容和要求2 2.总体方案确定和总体参数的选择2 2.1对工作装置的基本要求2 2.1.1概述2 2.1.2对工作机构的要求2 2.1.3工作机构的设计原则3 3.挖掘工作机构结构尺寸的确定3 3.1铲斗参数的选择3 3.2动臂和斗杆尺寸的确定4 3.3总体方案的确定5 3.3.1挖掘工作机构采用反铲方案，挖掘工作机构设计5 3.3.2挖掘支腿方案5 3.3.3回转机构设计6 3.3.4整体设计6 4.装载部分工作机构设计6 4.1工作机构的结构类型和性能分析6 4.1.1概述6 4.1.2工作装置的结构和类型7 4.2连杆机构的性能分析及类型选择11 4.3工作装置机构设计13 4.3.1概述13 4.3.2铲斗设计13 4.3.3动臂设计16 4.34连杆结构设计19 5.工作装置强度计算21 5.1工况分析21 5.2工作装置受力分析22 5.2.2正转六连杆的受力分析23 5.2.3强度计算及确定断面尺寸、材料27 5.2.4摇臂强度计算29 6．油缸作用力的确定30 6.1转斗油缸作用力的确定： 30 6.2动臂油缸作用力的确定： 30 7.定性校核31 7.1概述31 7.2评价稳定性能的指标31 总结34 参考文献35 致谢36