机械5

电机壳加工专用数控机床的设计 摘要 对于特定的电动机的外壳壳体内孔、止口的加工，设计电机壳体专用的数控立式车床的主轴箱。电机被广泛应用于各种机械与机床设备的传动上。定子与转子之间的气隙大小会直接影响电机的性能,而其气隙大小由电动机壳体铁芯孔与两端面的止口的同轴度来决定。设计内容包括根据所给出的额定转速下的工作状况的切削功率，选用适当的电动机，提高主运动的电动机使用率；主轴箱部分部件的设计；箱体的设计；其中最主要是主轴中采用了双列圆柱滚子轴承（锥孔），比其他轴承的回转精度更高，提高了被加工零件的圆度、圆柱度、跳动等精度；以及皮带机传动中采用球型垫片来实现张紧功能。 关键词:电动机壳体；专用数控立车；主轴箱 The desig
n of special-purpose NCN machi
ne tool for machi
ni
ng the shell of electric machi
ne Abstract To desig
n the spi
ndle box of special-purpose NCNvertical lathe for machi
ni
ng holes,seam allowa
nce a
nd e
nd face of the shell of electric machi
ne. The motor iswidely used i
n the tra
nsmissio
n ofvarious ki
nds of machi
nery a
nd Machi
ne tool equipme
nt. The size of the air gap betwee
n stator a
nd rotor ca
n directly affects the performa
nce of the motor，a
nd is determi
ned by the coaxial degree of the motor casi
ng a
nd the seam allowa
nces of the e
nds.the co
nte
nts of desig
n i
nclude: Accordi
ng to the cutti
ng power of the combi
ned operati
ng mode, to choose the suitable motor to improve the mai
n drive motor utilizatio
n;the desig
n of box; The desig
n of a specialworkbe
nch for special fixtures. The key of the desig
n is that spi
ndle beari
ng is usedwith double colum
n roller beari
ng(co
nical hole), ofwhich rotatio
nprecisio
n is higher tha
n other beari
ngs,to improve the circulardegree, cyli
ndricity,beat accuracy a
nd etc.Aswell as，Ball spacer is used i
n belt drive to impleme
ntatio
n the te
nsio
ni
ng fu
nctio
n Keywords: The shell of electric machi
ne；Special CNCvertical car；The spi
ndle box 目录 摘要 Abstract 1.前言1 1.1.课题研究背景1 1.2.课题研究意义2 1.3.国内外文献综述3 1.4.设计（）的主要内容8 2.主轴驱动系统的设计10 2.1.概述10 2.2.选择主轴驱动系统的类型12 2.3.选择电动机类型12 2.4.确定电机型号13 3.主传动系统的设计21 3.1确定总传动比的范围21 3.2转速要求21 3.3功率要求22 3.4齿轮副齿数的确定24 3.5.带传动的结构设计24 3.6齿轮传动的设计32 4强度的校核38 4.1齿面接触疲劳强度校核38 4.2齿根弯曲疲劳强度校核40 总结 参考文献44 致谢47