机械5

3T龙门皮革下料机总体设计及传动系统设计 摘要：本课题来源于企业中，主要完成龙门皮革下料机的总体设计和传动系统的设计。设备的最大分切力为3T，最高频次为30次/mi
n，工作台尺寸为（L*W）1200*800mm。龙门皮革下料机主要适用于各种皮革、塑料、橡胶等行压成型，以机械代替手工开裁坯料之用。该设备要求冲裁速度快、压力大，位移精度高，生产效率高、噪音低，操作方便，性能可靠等特点。该设备主要通过带传动及二级齿轮传动带动曲柄滑块机构运动，通过曲柄滑块机构将旋转运动转变为直线运动，使上工作台作往复上下直线运动。驱动元件采用三相异步交流电动机。在设计中利用带传动和斜齿轮传动，提高传动的平稳性。另外配有蜗轮蜗杆机构，其主要是起调节上压盖的行程的作用。在满足设计要求的前提下降低了成本，且满足下料分切干燥要求，工作行程调整方便，适合大批量生产。 关键词：龙门；下料机；总体设计；传动系统设计 The Desig
n of the Overall a
nd Tra
nsmissio
n System of 3T Ga
ntry Raw Material Machi
ne for Cutti
ng Leather Abstract: This desig
n comes from e
nterprise. This desig
n mai
nly completes the desig
n of the overall a
nd tra
nsmissio
n system of 3T ga
ntry raw material machi
ne for cutti
ng the leather. The equipme
nt’s the biggest cutti
ng force is 3T, the highest moveme
nt freque
ncy is 30 times o
ne mi
nute, the size of work table is: (L*W) 1200*800mm.Ga
ntry raw material cutti
ng machi
ne is applicable to li
ne pressi
ng a
nd mouldi
ng for all ki
nds of materials like leather, plastics a
nd rubber, that ca
n cut raw materials by machi
ne i
nstead of ha
nd make. Its feature is the higher precisio
n displaceme
nt, the higher pressure , the higher productio
n efficie
ncy, the lower
noise .It is equipped with mecha
nic gear ru
n
ni
ng a
nd electric butto
n .Its reliable performa
nce co
ntributes to the safe a
nd co
nve
nie
nt operatio
n . It mai
nly through the belt tra
nsmissio
n a
nd two levels of gear drive impetus cra
nk slide orga
nizatio
n moveme
nt, through the cra
nk slide orga
nizatio
n to tur
n o
n lathe the tra
nsportatio
n to tur
n becomes the tra
nslatio
n about, the
n cause the work table to make the straight reciprocati
ng mai
n motio
n. The actuates part is three asy
nchro
nous motors .The desig
ni
ng belt tra
nsmissio
n a
nd the bevel-gear tra
nsmissio
n that e
nha
nce the tra
nsmissio
n the stability. Moreover it has the worm gear orga
nizatio
n that mai
nly fu
nctio
n is adjusted the gla
nd the traveli
ng schedule . i
n satisfies the desig
n request u
nder the premise its cost is the lower, also satisfied the yummy treats mi
nute to cut the dry request , the power stroke ca
n adva
ntageous for the adjustme
nt a
nd mass productio
n. Key word: ga
ntry; the raw material cutti
ng machi
ne; the desig
n of Overall; the desig
n of tra
nsmissio
n system 目录 1前言1 1.1课题的来源、基本前提条件1 1.2国内外发展现状1 1.3本课题要解决的主要问题和总体思路2 1.4简述设计的解决方案以及预期效果2 2总体设计3 2.1总体方案3 2.1.1工作台的设计3 2.1.2传动机构的选择3 2.1.3传动装置的工作原理4 2.2电动机的选择4 2.3各级传动比的分配5 2.4运动和动力参数计算5 3部件的设计7 3.1带轮的设计7 3.2齿轮的设计8 3.2.1一级齿轮的设计8 3.2.2二级齿轮的设计11 3.3轴的设计13 3.3.1轴的直径、长度设计13 3.3.2轴的校核14 3.4轴承的选定16 3.5键的选择18 3.6蜗轮的设计18 3.6.1蜗杆传动的特点18 3.6.2蜗杆的计算19 3.7曲柄滑块机构的设计21 3.7.1曲柄滑块的技术参数21 3.7.2曲柄滑块机构的设计22 4结论23 参考文献24 致谢25 附录26