机械5

本设计着重分析了挖掘机行走装置中底盘的设计，并且附带了一部分动力部分的设计。 本文在详细设计履带装置的基础上，设计了支重轮、驱动轮、托链轮、导向轮四带一轮的结构，分析设计的各个轮并对部分关键部件进行了设计和检查。 I
n the co
nstructio
n of
natio
nal eco
nomy, especially the urba
n co
nstructio
n, civil e
ngi
neeri
ng,water co
nserva
ncy co
nstructio
n, road co
nstructio
n, airport co
nstructio
n, mi
ni
ng, port co
nstructio
n, improveme
nt of cultivated la
nd a
nd e
ngi
neeri
ng machi
nery is playi
ng a more a
nd more importa
nt role. Although there are all ki
nds of co
nstructio
n machi
nery, they ca
n be divided i
nto power devices,walki
ng devices a
ndworki
ng devices. The mai
n fu
nctio
n of the excavatorwalki
ng device is to provide the drivi
ng force
needed to drive the excavator. Frame,walki
ng device a
nd suspe
nsio
n are importa
nt compo
ne
nts of the excavatorwalki
ng device, so the excavator ca
nwork
normally. This desig
n focuses o
n the desig
n of the chassis i
n the excavatorwalki
ng device a
nd the desig
n of part of the power part. I
n this paper, o
n the basis of the detailed desig
n crawler device, desig
n the roller, drivi
ngwheel, chai
nwheel, guidewheel four rou
nd structure, a
nalysis a
nd desig
n of eachwheel a
nd part of the key compo
ne
nts for the desig
n a
nd check. Keywords: excavator; Walki
ng device; Te
nsio
ni
ng device; Four-wheel area 目录 引言4 第一章、绪论5 1.1本课题的意义和目的5 1.2国内外小型挖掘机的发展5 1.3设计要求6 1.4液压挖掘机概述7 1.5液压挖掘机的主要性能特点7 1.6履带式液压挖掘机的基本组成8 第二章、履带行走装置的整体设计12 2.1行走装置的选型12 2.2履带式行走装置的各部分的功用及结构布置12 2.3履带15 2.4行走装置牵引力计算18 2.5驱动轮的设计24 2.6支重轮的设计及计算26 2.7拖链轮的设计27 2.8导向轮的整体设计28 2.9履带张紧装置设计28 2.10行走架的设计29 第三章、液压系统31 3.1液压系统概述31 3.2行走装置液压马达31 3.3液压系统原理图34 第四章行走装置减速器35 4.1减速器方案的选择35 4.2传动方案的选定35 4.3减速器传动比35 4.4行星齿轮计算36 4.5减速器结构的设计40 第五章、总结42 参考文献43 致谢44