机械5

街道护栏清洗机设计 摘要 工业化的建设使城市人口和车辆逐年增多，人、车道路交通产生很大的矛盾，几乎所有道路拥挤的地方都安上了护栏隔离，城市公路中央护栏可以引导驾驶员的视线，以防车辆驶出路外造成交通事故。隔离护栏经过日晒雨淋，经常是脏兮兮的，不仅影响路容的整洁美观，而且护栏本身容易损耗。城市公路中央护栏的清洗，不仅是为了整洁的市容，而且能够延长护栏的使用寿命。为了保持城市公路中央护栏良好的引导视线功能和清洁美观，需要对护栏进行定期清洗。 本文就现有街道护栏设备所存在的一些问题对其进行重新设计。首先对比现有护栏清洗机现况提出设计方案，接着对清洗机的主要传动零件、清洗装置、液压系统进行了详细设计，最后采用AutoCAD软件绘制了该街道护栏清洗机的装配图和主要零件图。 为此，本次设计的街道护栏清洗机采用双液压规避机构，可横向与上下升降运动的街道护栏清洗机，清洁率得到了很大提升，解决了以往清洗机由于车辆行驶线路不能适时与道路曲线平行，无法刷到车行逆向的平面；而多种规格的网孔花纹图案加之车速过快，使刷子无法“伸入”网格内清洗等缺陷。 关键词：护栏，清洗机，液压系统，设计 Street clea
ni
ng machi
ne guardrail desig
n Abstract I
ndustrializatio
n a
nd the co
nstructio
n of the urba
n populatio
n i
ncreasi
ngyear byyearvehicles, people,vehicles a
nd road traffic have a huge co
ntradictio
n, almost all roads crowded places isolated o
n a fe
nce, the ce
ntral city highway guardrail ca
n guide the driver's li
ne of sight, to preve
ntvehicles drivi
ng Way outside cause accide
nts. Isolatio
n barrier through su
n a
nd rai
n, ofte
n dirty,
not o
nly affects the capacity of the road clea
n a
nd beautiful, but the fe
nce itself is easy towear a
nd tear. Ce
ntral City highway guardrail clea
ni
ng,
not o
nly to clea
n the cityscape, a
nd ca
n prolo
ng the life of the fe
nce. I
n order to keep the city ce
nter highway guardrail good guide features a
nd clea
n a
nd beautiful sight, the
need for regular clea
ni
ng fe
nce. I
n this paper, some of the problems existi
ng street guardrail equipme
nt redesig
n its existe
nce. First, compare the curre
nt status of the desig
n scheme clea
ni
ng machi
ne guardrail, a
nd the
n o
n the mai
n tra
nsmissio
n parts clea
ni
ng machi
nes, clea
ni
ng equipme
nt, hydraulic system detailed desig
n, fi
nal assembly usi
ng AutoCAD software to draw a diagram of the street clea
ni
ng machi
ne guardrail a
nd major parts diagram. For this reaso
n, the desig
n of the street clea
ni
ng machi
ne guardrail dual hydraulic circumve
nt i
nstitutio
ns, laterally a
nd up a
nd dow
n moveme
nt of the fe
nce street clea
ni
ng machi
nes, clea
ni
ng rate has bee
n greatly improved, solves thewashi
ng machi
ne because the li
ne ca
n
not be timelyvehicle a
nd road curve parallel to the dealers ca
n
not brush reverse pla
ne;while avariety of specificatio
ns of the mesh patter
ns combi
nedwith excessive speed, the brush ca
n
not be"stretchi
ng" the grid clea
ni
ng a
nd other defects. Keywords: Fe
nce, Washi
ng machi
ne, Hydraulic system, Desig
n 目录 摘要I Abstract II 第1章绪论1 1.1研究背景1 1.2国内外同类技术的发展水平及应用1 1.3国内的清扫车存在的技术差距4 第2章总体设计6 2.1总体参数选定6 2.1.1设计要求6 2.1.2总体参数6 2.2清洗机方案选定7 2.2.1清洗装置方案的选用7 2.2.2清洗装置传动方案的选用7 第3章主要零件设计9 3.1设计要求9 3.2主要传动零件的设计9 3.2.1横梁10 3.2.2伸缩杆10 3.2.3转轴12 3.2.4轴承的选取12 3.3清洗装置的设计13 3.3.1毛刷的选择与安装方式13 3.3.2清洗装置的基本设计计算13 3.3.3水泵的选择和计算14 3.4毛刷的设计16 第4章液压系统设计19 4.1系统的设计要求19 4.2工况分析19 4.3液压缸主要参数的确定19 4.4液压系统图的拟订21 4.4.1液压回路的选择21 4.4.2拟订液压系统图21 4.4.3液压元件的选择22 4.5液压系统的性能验算23 4.5.1回路压力损失验算23 4.5.2系统动作过程分析23 总结25 参考文献26 致谢27