4LY-180型油菜联合收割机的设计(振动筛的设计)
摘要
本文阐述了目前国内油菜收割的现状,指出了国内油菜联合收割机研究的成绩和存在的问题,并对油菜收割技术的前景做了展望。通过动力学原理来设计作为清选装置的振动筛,采用双风扇配合振动筛将油菜从杂物中分离,并对清粮的原理进行了论证。根据经验选择了加密圆孔筛作为筛面。参考实验模型并对其传动方案进行了改良,使传动更加有效、合理。着重对油菜联合收割机进行了设计计算。对轴的设计是根据弯扭组合强度来进行设计校核的,在保证强度的条件下尽量节省材料。轴承和带轮的设计和校核严格根据机械设计手册进行,强度和寿命都达到满足实际生产生活的要求。其他零件非标准见参考实验机型的设计,标准件则根据设计手册进行设计,满足了油菜联合收割机对振动筛部分的设计。
关键词:油菜;收割机;设计;振动筛;轴;轴承;带轮
ABSTRACT
This paper describes thecurre
nt situatio
nof domesticrapeseedharvest,poi
nted out that thedomestic researchof rape combi
ne harvestera
nd the existi
ng problems,a
ndo
n rapeharvesttech
nologyprospect.Through the dy
namicspri
nciple i
n the desig
n ofvibratio
n as theclea
ni
ng devicescree
n,doublefa
nwithvibratio
nsievewillrapeis separated from thedebris,a
nd the pri
nciple ofclea
ni
ngare demo
nstrated.Accordi
ng to th.Accordi
ng to the experie
nce ofselectedas e
ncryptio
n rou
nd hole sieve scree
n surface. The refere
nce model a
nd the improveme
nt of its tra
nsmissio
n scheme, the tra
nsmissio
n more efficie
nt,reaso
nable. The rape combi
ne harvester for the desig
n a
nd calculatio
n. Is to desig
n a
nd checkaccordi
ng to thebe
ndi
ng a
nd torsio
nstre
ngthofshaft desig
n,e
nsuri
ng the stre
ngth of theco
nditio
nstosave material.Beari
nga
nd a belt wheeldesig
n a
nd checkstrictlyaccordi
ng to theHa
ndbook of mecha
nical desig
n,stre
ngth a
nd lifetomeet the actual productio
nrequireme
nts of life.Otherparts,
no
nsta
ndarddesig
n refere
nceexperime
ntalmodels,sta
ndard partsaccordi
ng to thedesig
n ma
nualdesig
n,meet therape combi
nepart of the desig
nof the vibrati
ng scree
n. Keywords:rape;harvester;desig
n;vibratio
n sieve;shaft; beari
ng;pulley 目录 第一章引言…………………………………………………………………1 1.1按照油菜籽的空气动力学特性进行分离……………………………………1 1.2按照油菜籽的尺寸特性进行分离……………………………………………2 1.3利用气流和筛子配合进行分离………………………………………………2 第二章我国油菜收割机的现状与展望……………………………………3 2.1油菜的市场情况………………………………………………………………3 2.2油菜的种植方式对实现机收的影响…………………………………………4 2.3油菜收获机械化技术现状……………………………………………………4 2.4油菜收获机械化技术展望……………………………………………………5 第三章振动筛的设计………………………………………………………10 3.1筛面的选择…………………………………………………………………10 3.2传动方案的选择……………………………………………………………10 第四章零件的设计计算……………………………………………………11 4.1后轴的设计计算……………………………………………………………11 4.2前轴的设计计算……………………………………………………………14 4.3带轮的设计计算……………………………………………………………15 4.4后轴轴承的选用……………………………………………………………17 4.5关于振动筛其他零件的设计校核…………………………………………18 结束语………………………………………………………………………………19 致谢…………………………………………………………………………………20 参考文献…………………………………………………………………………21
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nt situatio
nof domesticrapeseedharvest,poi
nted out that thedomestic researchof rape combi
ne harvestera
nd the existi
ng problems,a
ndo
n rapeharvesttech
nologyprospect.Through the dy
namicspri
nciple i
n the desig
n ofvibratio
n as theclea
ni
ng devicescree
n,doublefa
nwithvibratio
nsievewillrapeis separated from thedebris,a
nd the pri
nciple ofclea
ni
ngare demo
nstrated.Accordi
ng to th.Accordi
ng to the experie
nce ofselectedas e
ncryptio
n rou
nd hole sieve scree
n surface. The refere
nce model a
nd the improveme
nt of its tra
nsmissio
n scheme, the tra
nsmissio
n more efficie
nt,reaso
nable. The rape combi
ne harvester for the desig
n a
nd calculatio
n. Is to desig
n a
nd checkaccordi
ng to thebe
ndi
ng a
nd torsio
nstre
ngthofshaft desig
n,e
nsuri
ng the stre
ngth of theco
nditio
nstosave material.Beari
nga
nd a belt wheeldesig
n a
nd checkstrictlyaccordi
ng to theHa
ndbook of mecha
nical desig
n,stre
ngth a
nd lifetomeet the actual productio
nrequireme
nts of life.Otherparts,
no
nsta
ndarddesig
n refere
nceexperime
ntalmodels,sta
ndard partsaccordi
ng to thedesig
n ma
nualdesig
n,meet therape combi
nepart of the desig
nof the vibrati
ng scree
n. Keywords:rape;harvester;desig
n;vibratio
n sieve;shaft; beari
ng;pulley 目录 第一章引言…………………………………………………………………1 1.1按照油菜籽的空气动力学特性进行分离……………………………………1 1.2按照油菜籽的尺寸特性进行分离……………………………………………2 1.3利用气流和筛子配合进行分离………………………………………………2 第二章我国油菜收割机的现状与展望……………………………………3 2.1油菜的市场情况………………………………………………………………3 2.2油菜的种植方式对实现机收的影响…………………………………………4 2.3油菜收获机械化技术现状……………………………………………………4 2.4油菜收获机械化技术展望……………………………………………………5 第三章振动筛的设计………………………………………………………10 3.1筛面的选择…………………………………………………………………10 3.2传动方案的选择……………………………………………………………10 第四章零件的设计计算……………………………………………………11 4.1后轴的设计计算……………………………………………………………11 4.2前轴的设计计算……………………………………………………………14 4.3带轮的设计计算……………………………………………………………15 4.4后轴轴承的选用……………………………………………………………17 4.5关于振动筛其他零件的设计校核…………………………………………18 结束语………………………………………………………………………………19 致谢…………………………………………………………………………………20 参考文献…………………………………………………………………………21
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