机械5

JKMD-4.5×4多绳摩擦式提升机设计 摘要 中国主要投入使用的提升机有两大类：一种式单绳缠绕式，另一种是多绳摩擦式。较早出现的是单绳缠绕式提升机，工作原理较为简单，利用钢丝绳的一端固定并缠绕在提升机的滚筒上，另一端绕过井架天轮悬挂提升容器，这样利用滚筒转动方向的不同，将钢丝绳缠上或松放，完成提升或下放容器的工作。 多绳摩擦提升机是利用钢丝绳与主导轮上的摩擦衬垫之间的摩擦力带动钢丝绳随着主导轮一起转动，从而实现容器的提升和下放。本次设计为JKMD-4.5×4多绳摩擦提升机的设计，设计内容主要有：主轴装置的结构设计和强度及刚度较核计算；钢丝绳的选择计算；传动系统参数确定及主电动机的选择计算；提升高度的计算及校核；防滑条件等验算。多绳摩擦式矿井提升机是矿山的大型固定设备之一，是联系井下与地面的主要运输工具。越来越多的将代替了单绳缠绕式提升机。 摩擦提升机的工作方式来看，与缠绕式提升机有明显不同：钢丝绳不是缠绕在卷筒上，而是套在主导轮上，两端各悬挂一个提升容器，借助于安装在主导轮的衬垫与钢丝绳之间的摩擦力之间的摩擦力来传动钢丝绳，使容器移动，从而完成提升或下放重物的工作。 关键词：JKMD-4.5×4多绳摩擦提升机；主轴装置；传动系统；防滑条件 Abstract At prese
nt, the elevators produced a
nd used i
n Chi
na ca
n be divided i
nto two categories: si
ngle ropewi
ndi
ng a
nd multi-rope frictio
n. The si
ngle-ropewi
ndi
ng hoist is a
n early riser. Itsworki
ng pri
nciple is relatively simple. It fixes o
ne e
nd of a steelwire rope a
ndwi
nds it o
n the drum of the hoisti
ng machi
ne, a
nd the other e
nd bypasses the derrickwheel to hoist the lifti
ng co
ntai
ner. Usi
ng the differe
nt rotatio
n directio
n of the drum, thewire rope iswrapped or loose
ned to complete thework of lifti
ng or loweri
ng the co
ntai
ner. The multi-rope frictio
n lifter utilizes the frictio
n betwee
n thewire rope a
nd the frictio
n pad o
n the mai
nwheel to drive thewire rope to rotate togetherwith the mai
nwheel, so as to achieve lifti
ng a
nd loweri
ng of the co
ntai
ner. This desig
n is a desig
n of JKMD-4.5×4 multi-rope frictio
n hoist. The mai
n co
nte
nts of the desig
n i
nclude: the structural desig
n of the spi
ndle device a
nd the compariso
n of stre
ngth a
nd stiff
nesswith
nuclear calculatio
n; selectio
n of steelwire rope; determi
natio
n of tra
nsmissio
n system parameters a
nd selectio
n of the mai
n motor. Raise the height of the calculatio
n a
nd check; slip co
nditio
ns a
nd other checks. The multi-rope frictio
n mi
ne hoist is o
ne of the large-scale fixed equipme
nts i
n the mi
ne a
nd is the mai
n tra
nsportatio
n tool for co
ntacti
ng the u
ndergrou
nd a
nd the grou
nd. It is i
ncreasi
ngly replaci
ng the si
ngle ropewi
ndi
ng hoist. Frictio
n hoists have a sig
nifica
nt differe
nce fromwi
ndi
ng elevators i
n terms of theirworki
ng pri
nciple: the rope is
notwou
nd o
n the drum, but is set o
n the mai
nwheel, a
nd a lifti
ng co
ntai
ner is hu
ng o
n both e
nds,which is i
nstalled o
n the mai
nwheel. Frictio
n betwee
n the frictio
n betwee
n the li
ner a
nd thewire rope drives thewire rope to move the co
ntai
ner, thus completi
ng the task of lifti
ng or loweri
ng theweight. Keywords:JKMD-4.5×4 multi-rope frictio
n hoist; Spi
ndle device; Tra
nsmissio
n system; A
nti-slip co
nditio
n 目录 第1章绪论1 1.1提升机概况1 1.2多绳摩擦提升机的分类和特点1 第2章设计任务及主要参数3 2.1设计题目3 2.2设计目的3 2.3设计参数3 2.4内容与要求3 2.4.1设计内容3 2.4.2要求4 第3章设计步骤及计算5 3.1提升容器的选择计算5 3.2提升钢丝绳的选择计算6 3.3验算提升机强度7 3.3.1钢丝绳最大静张力和钢丝绳最大静张力差的计算7 3.3.2验算主导轮衬垫比压7 3.4天轮的选择8 3.5提升机与钢丝绳相对位置8 3.5.1确定提升机与钢丝绳相对位置的原则8 3.5.2提升机与钢丝绳相对位置各参数的计算9 3.6运动学与动力学计算11 3.6.1计算最大经济速度11 3.6.2预选电动机12 3.6.3计算提升系统变位质量12 3.6.4确定提升时的加减速度13 3.6.5提升系统运动学计算16 3.6.6提升动力学计算17 3.6.7提升系统工作图19 3.7电动机容量验算19 3.8多绳摩擦提升机防滑验算20 3.8.1静防滑安全系数的验算21 3.8.2动防滑安全系数的验算21 3.9卷筒计算23 3.9.1确定滚筒宽度的确定23 3.9.2主导轮轮壳强度校核24 3.10主轴的结构设计25 3.10.1主轴结构设计注意事项25 3.10.2主轴结构设计25 3.11主轴的校核29 3.11.1提升机主轴的计算步骤及项目29 3.11.2轴的强度校核30 3.11.3轴的刚度校核36 3.11.4轴承的较核37 3.12制动器的选择计算39 3.12.1提升机的制动装置39 3.13其他部件的选择与应用40 3.13.1减速器的选择40 3.13.2深度指示器40 3.13.3液压站40 3.13.4润滑、密封及其他40 参考文献43 致谢45