机械5

可伸缩带式传输机的结构设计 摘要 早在20世纪60年代，就已出现带式输送机应用于物品。从20世纪70年代至今，带式输送机已经在矿物运输中逐步取代汽车运输,成为了散状货物的主要运输设备。带式输送机在各个领域出的技术不断推进，扩宽了带式输送机的应用范围。而可伸缩带式传输机是应用最为普遍，传输物料最为高效的一种传输机机型。它既有物料搬运量大,输送时间长,连续交通运输的特点,也容易达到集中与自动化的目标。尤其在煤矿事业上的应用广泛,可伸缩履带传输机已经发展成为煤矿开采时必不可少的一种设备。其中主要内容包括对于使用可移动伸缩履带式油料传输机的专用皮带和油料传送器产品种类的结构选择,传动装置的结构设计,中间架和支撑架的结构选择与重量计算,张紧传动装置的重量计算,传动装置的结构选择,托辊和滚筒的结构选择与重量计算等,并且对可伸缩带式传输机的整体结构以及工作原理做出了概述。可伸缩式皮带传输机主要依靠滚筒传动时通过摩擦力来传递皮带的运动,并且还在其结构上加上了存放带式装置,实现了结构的伸缩功能，时输送机能够伸长缩短，以达到不同输送距离的目的，提高工作效率，减少工作人员所需的操作，具有一定的实践价值。 关键词：可伸缩；输送带；储带装置；传动滚筒 Structure desig
n of telescopic belt co
nveyer Abstract As early as the 1960s, belt co
nveyor has bee
n used i
n goods. Si
nce 1970s, belt co
nveyor has gradually replaced automobile tra
nsportatio
n i
n mi
neral tra
nsportatio
n a
nd become the mai
n tra
nsportatio
n equipme
nt of bulk goods. Belt co
nveyor tech
nology i
n various fields co
nti
nues to adva
nce, expa
ndi
ng the applicatio
n ra
nge of belt co
nveyor. The retractable belt co
nveyor is the most widely used a
nd the most efficie
nt o
ne. It
not o
nly has the characteristics of large material ha
ndli
ng capacity, lo
ng co
nveyi
ng time a
nd co
nti
nuous tra
nsportatio
n, but also easy to achieve the goal of ce
ntralizatio
n a
nd automatio
n. Especially i
n the coal mi
ne i
ndustry is widely used, telescopic crawler co
nveyor has developed i
nto a
n esse
ntial equipme
nt i
n coal mi
ni
ng. The mai
n co
nte
nts i
nclude the structure selectio
n of the special belt a
nd oil co
nveyor usi
ng the movable telescopic crawler oil co
nveyor, the structure desig
n of the tra
nsmissio
n device, the structure selectio
n a
nd weight calculatio
n of the i
ntermediate frame a
nd support frame, the weight calculatio
n of the te
nsio
n tra
nsmissio
n device, the structure selectio
n of the tra
nsmissio
n device, the structure selectio
n a
nd weight calculatio
n of the idler a
nd roller, etc, A
nd the overall structure a
nd worki
ng pri
nciple of the telescopic belt co
nveyor are summarized. The retractable belt co
nveyor mai
nly relies o
n the frictio
n force to tra
nsfer the belt moveme
nt whe
n the roller is drivi
ng, a
nd the storage belt device is added to its structure to realize the retractio
n fu
nctio
n of the structure. The co
nveyor ca
n be exte
nded a
nd shorte
ned to achieve the purpose of differe
nt co
nveyi
ng dista
nces, improve the work efficie
ncy a
nd reduce the operatio
n required by the staff, which has a certai
n practical value. Key words：exte
nsible；belt co
nveyor；Structure desig
n；Parts desig
n 目录 1绪论5 1.1课题研究的目的和意义5 1.2国内外发展状况5 1.3可伸缩带式传输机工作原理6 2技术任务书8 2.1设计依据8 2.2产品的应用8 2.3可伸缩带式输送机设计的基础数据8 3设计计算说明书9 3.1输送带的选择及设计计算9 3.1.1输送带的选择9 3.1.2输送带带宽的计算9 3.1.3单位输送带上物料的质量10 3.1.4输送能力的验算11 3.1.5牵引力的计算11 3.2滚筒的设计计算12 3.2.1滚筒的选择12 3.2.2滚筒直径的确定13 3.2.3滚筒的转速14 3.3托辊的设计计算15 3.3.1托辊的概述15 3.3.2托辊的结构与种类15 3.3.3托辊垂度与间距的设计计算16 3.3.4输送带的最小拉力17 3.3.5托辊的静载荷计算17 3.3.6托辊的动载荷计算18 3.3.7计算托辊的槽形角18 3.4拉紧装置及收放胶带装置的设计20 3.4.1拉紧装置的概述20 3.4.2张紧力和行程的计算21 3.4.3提高张紧力的方法22 3.4.4收放装置设计22 3.5输送机传动装置的设计24 3.5.2电机的选择24 3.5.3减速器的计算与选用25 3.6机架设计计算26 3.6.1机头卸料架的设计26 3.6.2中间架的设计与强度校核26 3.7主轴的设计与键的强度校核28 3.7.1主轴的设计28 3.7.2键的校核32 4标准化审查报告34 结论35 参考文献36 致谢37