摘要 中国基建发展的非常快，现在基建中挖掘机用的范围很大，频率也很高，挖掘机用的很便利。中针对挖掘机的工作特征进行全面分析，针对挖掘机铲斗结构进行设计，将铲斗结构设计的更加快速，更加精准，清洁度更好，更加经济适用，获得更好的安全性和效率，使用的便利性更强。 中着重设计挖掘机铲斗结构，对它的结构进行全面的分析。第一步弄清楚目前挖掘机铲斗的主要结构，以及进行了哪些研究。对于挖掘机铲斗结构的发展进行详细的了解，当中包含它的特征，趋势。在此之上设计出挖掘机铲斗的主要结构以及特征。第一步设计它的总体，这部分主要设计挖掘机铲斗结构的驱动部分，需要选用合适的油缸等。紧接着设计出挖掘机铲斗的立体模型，这样就建立挖掘机铲斗的立体模型，画出它的平面图。 的创新之处在于建立立体模型时以三维软件去实现，整个设计的效率非常高，也很便利，并且设计成果展现的非常直观，一目了然。 关键词：挖掘机；铲斗结构；三维造型；结构 Abstract With the rapid developme
nt of Chi
na's i
nfrastructure, excavators are used i
n a wide ra
nge a
nd high freque
ncy, a
nd they are very co
nve
nie
nt. I
n this paper, the worki
ng characteristics of the excavator are comprehe
nsively a
nalyzed, a
nd the bucket structure of the excavator is desig
ned, which makes the bucket structure desig
n faster, more accurate, clea
ner, more eco
nomical, a
nd more co
nve
nie
nt. This paper focuses o
n the desig
n of excavator bucket structure, a
nd makes a comprehe
nsive a
nalysis of its structure. The first step is to fi
nd out the mai
n structure of excavator bucket a
nd what research has bee
n do
ne. For the excavator bucket structure of the developme
nt of a detailed u
ndersta
ndi
ng, i
ncludi
ng its characteristics, tre
nds. O
n this basis, the mai
n structure a
nd characteristics of excavator bucket are desig
ned. The first step is to desig
n its overall structure. This part mai
nly desig
ns the drivi
ng part of excavator bucket structure, a
nd
needs to select the appropriate oil cyli
nder. The
n the three-dime
nsio
nal model of excavator bucket is desig
ned. I
n this way, the three-dime
nsio
nal model of excavator bucket is established a
nd its pla
n is draw
n. The i
n
novatio
n of this paper lies i
n the establishme
nt of three-dime
nsio
nal model to achieve three-dime
nsio
nal software, the efficie
ncy of the whole desig
n is very high, also very co
nve
nie
nt, a
nd the desig
n results show very i
ntuitive, at a gla
nce. Key words: excavator; Bucket structure; Three dime
nsio
nal modeli
ng; Structure 目录 1绪论1 1.1设计的目的意义1 1.2国内外研究概况及发展趋势2 1.2.1国内状况2 1.2.2国外状况2 1.3设计内容3 1.4本章小结3 2总体设计方案5 2.1研究方法的确定5 2.2小型挖掘机铲斗结构简介5 2.3设计要求和原则6 2.4本章小结8 3挖掘机的铲斗结构设计9 3.1动臂、斗杆、铲斗结构形式9 3.1.1动臂的结构形式9 3.1.2斗杆的结构形式10 3.1.3铲斗的结构形式和斗齿安装结构10 3.1.4铲斗与铲斗液压缸的连接方式11 3.2动臂、斗杆、铲斗油缸的铰点布置11 3.2.1动臂油缸的布置12 3.2.2斗杆油缸的布置13 3.2.3铲斗油缸的布置13 3.3动臂、斗杆、铲斗机构参数的选择14 3.3.1反铲装置总体方案的选择14 3.3.2机构自身几何参数15 3.3.3斗形参数的选择16 3.3.4动臂机构参数的选择22 3.3.5斗杆机构参数的选择26 3.3.6连杆、摇臂参数的选择28 4铲斗结构的强度校核计算31 4.1斗杆力学分析31 4.1.1位置Ⅰ的计算31 4.1.2位置Ⅱ的计算34 4.1.3斗杆位置Ⅰ受力计算以及内力图的绘制35 4.1.4斗杆位置Ⅱ受力计算以及内力图的绘制37 4.1.5斗杆强度校核37 4.2动臂力学分析41 4.3铲斗核心校核计算44 5油泵及油缸的设计与分析46 5.1铲斗油缸的设计46 5.1.1铲斗液压缸参数确定47 5.1.2油缸强度计算49 5.2泵的分析计算53 6三维模型建立55 6.1铲斗结构零件绘制55 6.2挖掘机铲斗结构的装配58 结论59 参考文献60 致谢61