机械5

汽车废旧钢板（＜3mm）锤式破碎机设计 摘要 废钢破碎机可以将各种汽车驾驶室、小型轻薄压块、摩托车架子自行车架子、电冰箱铁皮、电视机铁皮、洗衣机铁皮、易拉罐、油漆桶、油桶、彩钢瓦、烟筒皮、等壁厚在8mm以下各种废钢破碎。废钢破碎加工即利用破碎机对废旧钢板进行破碎，利用分选系统对破碎后的废钢进行分选来得到纯净的优质废钢的加工方法。其工作原理就是进料机把废铁自动运转到破碎机腔内，在高速、大扭矩电机的连续驱动下，破碎机转子上的锤头和刀片轮流击打进入容腔内的废钢。在强大的冲击力作用下，废钢被撕裂和挤压成一定规格的破碎钢，再经分选设备处理，就可得到纯度较高的优质破碎钢。 随着国民经济不断发展，人们的生活水平和消费水平逐渐提高本，从往年我国的汽车销量来看，势必带来很多报废汽车垃圾，对报废汽车钢板的处理是一个亟待解决的问题。课题旨在设计汽车废钢锤式破碎机的锤头及其传动系统的机械结构，并进行强度校核；另外，进行传动系统关键元件选择与参数匹配设计。 关键词：废旧钢板；破碎机；锤头；转子 Desig
n of Hammer Crusher for Automobile Waste Steel Plate (<3mm) Abstract Scrap crusher ca
n crush all ki
nds of scrap steel with wall thick
ness below 8mm, such as automobile cab, small light a
nd thi
n press, motorcycle rack, bicycle rack, refrigerator iro
n, TV iro
n, washi
ng machi
ne iro
n, pull-out ta
nk, pai
nt barrel, oil barrel, color steel tile, chim
ney ski
n, etc. The crushi
ng process of scrap steel is to use crusher to crush scrap steel, a
nd the separatio
n system is used to separate the crushed scrap steel to obtai
n pure a
nd high quality scrap steel processi
ng method. Its worki
ng pri
nciple is that the scrap iro
n is automatically ru
n i
nto the crusher chamber by the feeder. U
nder the co
nti
nuous drive of high speed a
nd large torque motor, the hammer head a
nd blade o
n the crusher rotor strike the scrap steel i
nto the chamber i
n tur
n. U
nder the stro
ng impact force, scrap steel is tor
n a
nd extruded i
nto a certai
n size of crushed steel, a
nd the
n treated by sorti
ng equipme
nt, high purity crushed steel ca
n be obtai
ned. With the co
nti
nuous developme
nt of the
natio
nal eco
nomy, people's livi
ng sta
ndards a
nd co
nsumptio
n levels are gradually improvi
ng. From the past year's automobile sales i
n Chi
na, it is bou
nd to bri
ng a lot of scrap automobile garbage, a
nd the disposal of scrap automobile steel plate is a
n urge
nt problem to be solved. The purpose of this project is to desig
n the mecha
nical structure of the hammer head a
nd its tra
nsmissio
n system of the automobile scrap steel hammer crusher, a
nd to check the stre
ngth of the hammer head; i
n additio
n, to select the key compo
ne
nts of the tra
nsmissio
n system a
nd desig
n the parameters matchi
ng. Key words: Scrap steel plate;Hammer crusher; Hammer head; Rotor 目录 摘要i Abstract ii 目录1 1绪论1 1.1我国废钢铁资源现状1 1.2报废汽车的回收1 1.3轻薄型金属破碎理论4 2金属破碎机的分类及工作原理5 2.1金属破碎机的分类5 2.1.1易拉罐破碎机5 2.1.2油漆桶破碎机5 2.1.3汽车破碎机5 2.1.4废钢破碎机5 2.1.5废铁破碎机6 2.2根据破碎原理可分为两种类型6 2.2.1刀盘切割6 2.2.2摆锤撞击6 2.3废钢破碎机6 2.4废钢破碎机的发展前景7 3计算机辅助设计（CAD） 9 3.1计算机辅助设计（ CAD ） 9 3.2 AutoCAD2007工程制图软件10 4选题背景11 4.1课题来源11 4.2课题研究意义11 4.3主要解决问题11 4.4设计思路12 5对破碎机的理解13 6破碎机结构设计15 6.1转子主轴设计及功率计算15 6.2电机功率计算16 6.3带传动的设计17 6.4转子结构设计及强度校核25 6.4.1主轴强度校核26 6.4.2锤轴、锤盘、锤头的设计和校核28 6.4.3转子直径的校核33 6.4.4转子结构的校核33 6.4.5轴承的选择35 6.5筛板及箱体结构设计40 6.5.1筛板结构设计40 6.5.2箱体结构设计41 结论41 参考文献43 致谢44