机械5

JH-20回柱绞车设计 DESIGN OF JH-20 COLUMN WINCH 摘要 绞车是用来提升牵引重物的起重机械。因绞车的操作容易、能轻易移动故而被广泛使用。在建筑、林业、工业、矿场等中多用绞车来提升下降物体。 当今社会机械技术卓越发展的情况下，绞车扮演着一个越来越重要的角色。此次研究设计的对象是JH-20回柱绞车。它整个系统的核心关键是在于它的传动系统，因此在此次设计中使用了圆柱齿轮传动和涡轮蜗杆传动的两级减速传动。这种传动系统能使得它整个系统结构稳定。研究中对绞车的重要零件进行了研究设计，从而为绞车保证它的高性能。为了确保绞车工作时的安全，设计中使用的电动机拥有防炸的性能，并且有各对应的开关来操作。 文章的主要内容为：1对主轴进行分析。从所学的相关知识中，研究了该型号绞车主轴的重要零件，树立了设计研究的相关力学模型，从而发现设计主轴的根本办法。2根据此次研究的绞车设计要求，分析减速器的设计原理，随后在试车实验中验证是否可行。最后对实验的结果进行研究。本文所得的研究成果对绞车的设计有着重要的参考意义，且能为下一步的研究进行了重要的铺垫。 关键词： JH-20绞车；制动装置；主轴 Abstract Wi
nches are lifti
ng machi
nes used to lift hauli
ng weights. It is widely used because it is easy to operate a
nd ca
n be easily moved. Wi
nches are ofte
n used i
n buildi
ngs, forestry, i
ndustry, mi
nes, etc. to raise desce
ndi
ng objects. Nowadays, with the excelle
nt developme
nt of mecha
nical tech
nology i
n society, wi
nch plays a
n i
ncreasi
ngly importa
nt role. The object of this study desig
n is the JH-20 wi
nch. The key to the whole system is its tra
nsmissio
n system. Therefore, i
n this desig
n, a two-stage reductio
n gear with a spur gear drive a
nd a worm drive was used. This ki
nd of tra
nsmissio
n system ca
n make its e
ntire system structure stable. I
n the research, the importa
nt parts of the wi
nch were studied a
nd desig
ned so as to guara
ntee the high performa
nce of the wi
nch.I
n order to e
nsure the safety of the wi
nch duri
ng operatio
n, the electric motor used i
n the desig
n has a
nti-explosio
n performa
nce a
nd has correspo
ndi
ng switches to operate. The mai
n co
nte
nt of the article is: 1 A
nalysis of the mai
n shaft. From the releva
nt k
nowledge lear
ned, the importa
nt parts of the wi
nch spi
ndle of this model were studied, a
nd the releva
nt mecha
nical model of the desig
n research was established, a
nd the fu
ndame
ntal method of desig
ni
ng the spi
ndle was fou
nd. 2 Accordi
ng to the desig
n requireme
nts of the wi
nch i
n this study, a
nalyze the desig
n pri
nciple of the reducer, a
nd the
n verify whether it is feasible i
n the trial test. Fi
nally, the results of the experime
nt were studied. The research results obtai
ned i
n this paper have importa
nt refere
nce sig
nifica
nce for the desig
n of the wi
nch, a
nd ca
n be importa
nt for the
next step of research. Keywords： JH-20 wi
nch braki
ng device spi
ndle 目录 摘要I Abstract II 1绪论1 1.1绞车的概述1 1.2绞车的结构及特点1 1.3绞车的分类1 1.4绞车的发展2 2电动机的选择3 2.1电动机的计算3 2.1.1电动机的结构和型号选择3 2.1.2电动机输出功率的计算3 2.2传动装置总传动比的计算及分配4 2.2.1总传动比计算4 2.2.2传动装置总传动比的分配4 2.3动力参数的计算4 2.3.1轴的转速计算5 2.3.2轴的输入功率计算5 2.3.3轴的输入转矩计算5 3设计轴的计算7 3.1轴的概述7 3.2主轴的设计9 3.3轴的核查10 3.3.1核查主轴Ⅶ轴10 3.4研究分析卷筒轴11 4选用钢丝绳并设计卷筒16 4.1选用钢丝绳16 4.1.1钢丝绳的概述16 4.1.2选用合适的钢丝绳直径16 4.2设计卷筒17 4.2.1选取材料17 4.2.2计算容绳的尺寸大小17 4.2.3计算卷筒壁的强度以及厚度18 5键联接20 5.1键联接的概述20 5.2选择合适的键20 5.3核查平键强度21 6研究分析制动器22 7减速器蜗轮蜗杆的设计24 7.1涡轮蜗杆的计算24 7.2减速器的润滑28 7.2.1传动装置的润滑28 7.2.2轴承的润滑28 8轴承的选用及密封方法30 8.1滚动轴承的概述30 8.2蜗轮轴上轴承的选用30 8.3蜗杆轴上轴承的选用31 8.4密封结构的设计31 9轴承游隙32 10绞车的常见故障及处理方法33 结论35 致谢36 参考文献37