机械5

双齿辊破碎机的设计 摘要 破碎机是选煤工业中不可或缺的设备。它的种类繁多，在工业应用中常用的破碎机有：颚式破碎机、圆锥破碎机、辊式破碎机、冲击式破碎机，磨碎机等。双齿辊破碎机有在破碎物料后无法精确控制好产品粒度大小的问题，针对此问题，本设计了一双齿辊破碎机，其工作原理是使落入齿辊间的物料在通过齿辊时受到挤压与相互摩擦的双重作用从而达到破碎效果。 设计中为了得到要求的物料粒度，本文结合了对辊式破碎机和颚式破碎机的特点，针对双齿辊破碎机无法控制物料的问题设计了弹簧控制装置。本设计驱动采用的是单电机驱动，传动系统包括带传动和齿轮传动。对主要零部件进行了结构设计和强度校核，使用单电机驱动可以大大减轻破碎机的重量并且也可以保证破碎效果，带传动和齿轮传动结构简单，造价低并且传动效率高。 双齿辊破碎机经过设计后可以很好的控制破碎后产品粒度大小，并且传动效率高，结构简单，方便移动。 关键词：双齿辊破碎机；破碎机；产品粒度 The desig
n of the double-tooth roller crusher Abstract Crushers are i
ndispe
nsable equipme
nt i
n the coal-picki
ng i
ndustry. It has a wide variety of crushers commo
nly used i
n i
ndustrial applicatio
ns: jaw crushers, co
ne crushers, roller crushers, impact crushers, gri
nders a
nd so o
n. Double-tooth roller crusher has the problem that the product grai
n size ca
n
not be precisely co
ntrolled after the crushi
ng material, i
n this paper, a pair of tooth roller crusher is desig
ned, the worki
ng pri
nciple is to make the material falli
ng betwee
n the tooth rollers through the tooth rollers by squeezi
ng a
nd frictio
n betwee
n the double effect to achieve the crushi
ng effect. I
n order to obtai
n the required material gra
nularity i
n the desig
n, this paper combi
nes the characteristics of roller crusher a
nd jaw crusher, a
nd desig
ns a spri
ng co
ntrol device for the problem that double-tooth roller crusher ca
n't co
ntrol the material. This desig
n drive is drive
n by a si
ngle motor a
nd the drivetrai
n comprises a belt drive a
nd gear drive. I
n this paper, the mai
n compo
ne
nts are structurally desig
ned a
nd stre
ngth-proofed, a
nd the use of si
ngle-motor drive ca
n greatly reduce the weight of the crusher a
nd ca
n also guara
ntee the crushi
ng effect, with simple tra
nsmissio
n a
nd gear tra
nsmissio
n structure, low cost a
nd high tra
nsmissio
n efficie
ncy. Double-tooth roller crusher after desig
n ca
n be very good co
ntrol of the size of the product after crushi
ng, a
nd high tra
nsmissio
n efficie
ncy, simple structure, easy to move. Keyword：Double toothed roll crusher Roll crusher Product grai
n size 目录 1绪论1 1.1齿辊式破碎机的发展2 1.1.1国内齿辊破碎机的发展2 1.1.2国外齿辊破碎机的发展3 1.2存在的问题4 2双齿辊破碎机设计任务书5 2.1本文主要设计内容5 2.2方案设计5 2.3双齿辊破碎机工作原理6 2.4双齿辊破碎机传动方案选择7 3双齿辊破碎机设计计算说明书8 3.1双齿辊破碎机各参数确定8 3.1.1生产率计算8 3.1.2电机选择9 3.1.3初步确定辊齿形状10 3.2确定传动类型11 3.3传动装置参数11 3.3.1各轴转速计算11 3.3.2各轴输入功率12 3.3.3各轴转矩12 3.4带传动设计计算13 3.5齿轮传动设计计算16 3.6长齿齿轮设计21 3.7轴的设计与校核22 3.7.1 Ⅱ轴设计计算22 3.7.2 Ⅲ轴设计计算26 3.7.3 Ⅳ轴设计计算31 3.8轴承寿命验算36 3.8.1深沟球轴承6220 36 3.8.2齿辊主轴调心滚子轴承23038 38 3.8.3 Ⅳ轴调心滚子轴承23038 39 3.9键的选择与强度校核40 3.10弹簧的设计41 4使用说明书43 4.1操作说明43 4.2注意事项43 5标准化审查报告44 结论45 参考文献46 致谢47