机械5

同步上料旋转升降系统设计 摘要 同步上料旋转升降系统是用于真空熔炼设备中进行金属重熔精炼的一个重要部件，在金属重熔精炼中起着重要作用。它具有快速上升和慢速下降的功能，在升降的同时具备了旋转功能。快速上升，能有效提高其工作效率；慢速下降及旋转，对净化金属、搞高金属纯度、改善晶体结构起着重要的作用。本文设计选用双滚珠丝杠副作为升降系统，传动方式为丝杠回转运动——螺母移动；通过螺母移动带动中间轴升降的同时，用交流伺服电机驱动中间轴旋转。本文对该机构的主要组成部件：滚珠丝杠副、减速器、齿轮传动、交流伺服电机等进行了设计计算或选型。此外,本文还对各个零部件进行了设计及其说明，并绘制了零件图以及该机构的装配图。整个机构设计合理，结构紧凑，运动平稳，定位精度和传动效率高，能有效实现其同步旋转升降的功能。 关键词：传动设计；升降机构；旋转机构 Abstract Rotati
ng sy
nchro
nous lifti
ng system of feedi
ng is a
n importa
nt compo
ne
ntwhich is used i
nvacuum equipme
nt for metal remelti
ng a
nd refi
ni
ng. It plays a
n importa
nt role i
n metal remelti
ng a
nd refi
ni
ng. It has rapidly i
ncreased a
nd slow decli
ne simulta
neously revolved i
n fu
nctio
n. Whe
n it rises fast, it ca
n effectively improve thework efficie
ncy. Whe
n it is slow dow
n a
nd rotate, it plays a
n importa
nt role i
n maki
ng high purity of metal, improvi
ng crystal structure a
nd purificatio
n of metal. Therefore it is mea
ni
ngful to desig
n of this mecha
nism. The article selected as a double Ball guide screwvice lifti
ng system. The type of drive is that ball screw is rotatio
n moveme
nt a
nd the
nuts move; the
nuts drive the i
ntermediate shaft to rise a
nd fall, a
nd at the same time, the i
ntermediate shaft drive
n by AC servo motor rotati
ng. I
n this paper, the mai
n compo
ne
nts of the mecha
nical compo
ne
nts: Ball guide screwvice, speed reducer, gear drives, AC servo motor etc. has bee
n desig
ned, such as computi
ng or selectio
n. I
n additio
n, the article has also carried out i
nvarious parts of the desig
n a
nd descriptio
n, a
nd has draw
n up the detail drawi
ng aswell as this orga
nizatio
n assembly drawi
ng. The desig
n is reaso
nable. The e
ntire machi
ne structure is compact a
nd smooth moveme
nt. The positio
ni
ng accuracy a
nd the tra
nsmissio
n efficie
ncy are so high. It ca
n also effectively achieve the fu
nctio
n of sy
nchro
nous rotatio
n moveme
nts. Keyword：tra
nsmissio
n desig
n；lift-fall mecha
nism；rotatio
n mecha
nism 目录 引言1 1概论1 1.1课题的主要内容1 1.2总体方案的设计1 2旋转系统的设计3 2.1电机的选择3 2.1.1电动机类型和结构型式选择3 2.1.2电动机转速选择3 2.2传动装置的运动和动力参数计算3 2.2.1传动比计算和传动比的分配3 2.2.2各轴转速、输入功率、转矩计算4 2.3减速器的设计5 2.3.1减速器类型的确定5 2.3.2传动零件的设计计算5 2.3.3轴的设计计算及校核11 2.4齿轮传动的设计17 3升降系统的设计21 3.1电机的选择21 3.2传动零件的设计21 3.3滚珠丝杠副的确定24 3.3.1滚珠丝杠副的选择24 3.3.2滚珠丝杠副的计算与选型28 4零件的设计和计算33 4.1轴承的选择和计算33 4.2键连接的选择和计算34 4.3联轴器的选择和计算35 5润滑和密封的选择36 5.1润滑的选择36 5.2密封的选择37 6附近的选择38 7结论39 谢辞40 参考文献41