机械5

E3立辊轧机侧压装置系统设计 摘要 立辊轧机的侧压装置每侧都有两根侧压螺丝,两台侧压电机通过蜗轮蜗杆减速机分别带动两侧的侧压螺丝完成辊缝调整工作。辊缝调整速度即一对立辊同时靠拢或张开的速度,对不同类型的立辊轧机差别较大。侧压速度取决于立辊开口度的变化范围,若开口度变化范围较大,则侧压速度要选得较大。现代的立辊轧机左右两个侧压装置之间都没有机械连接,完全采用电气同步,这省去了同步轴、离合器等一套复杂笨重的机械同步机构,并给轧辊的对中和换辊操作带来了很大的方便。平衡装置是通过放置在单侧两根侧压螺丝间的平衡液压缸,将轧辊拉靠在侧压螺丝上,以消除侧压螺丝和侧压螺母和其它承压件之间的间隙。 本设计通过计算对立辊轧机的侧压系统的机械结构和工作原理做了简略的分析，明确了该系统的优劣。为立辊轧机的侧压系统从而到整个机构的优化设计提供了基矗 关键词：立辊轧机侧压装置侧压螺丝辊缝调整 Abstract Vertical roller mill side pressure device has two lateral pressure screws o
n each side, two side pressure throughworm gear motors are drive
n by lateral pressure screws o
n both sides to complete the roll gap adjustme
nt. Roll gap adjustme
nt speed that a close or ope
n at the same time opposi
ng roller speed differe
nces for differe
nt types ofvertical roller mill is large. Side pressurevaries depe
ndi
ng o
n the speed of the ope
ni
ng degree ofvertical roll, if the ope
ni
ng of the large ra
nge ofvariatio
n, the lateral pressure to choose a larger rate. Moder
n edger betwee
n right a
nd left side pressi
ng device is
no mecha
nical co
n
nectio
n, electrical completely sy
nchro
nized,which elimi
nates the sy
nchro
nizi
ng shaft, clutch a complex bulky mecha
nical sy
nchro
nizi
ng mecha
nism, a
nd a pair of rolls a
nd roll cha
nge operatio
n has brought great co
nve
nie
nce. Bala
nci
ng device is placed i
n equilibrium by two hydraulic cyli
nders u
nilateral lateral pressure betwee
n the screwwill pull the roll agai
nst the side pressure screw to elimi
nate the gap betwee
n the lateral pressure side pressure screw a
nd
nut a
nd other pressure parts. This desig
n by calculatio
n E_3 edger mill ma
nometry system mecha
nical structure a
ndworki
ng pri
nciple madea brief a
nalysis of the pros a
nd co
ns of the system clear. Vertical roller mill ma
nometry is thus to optimize the desig
n of the system provides the basis for the e
ntire orga
nizatio
n. Keywords：Vertical roller mill,side pressure device, side pressure screw, Roll gap adjustme
nt 目录 1绪论﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒6 1.1立辊轧机的用途和结构特点﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒6 1.2立辊轧机的国内外发展现状﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒6 2侧压装置方案设计﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒8 3侧压螺丝的设计计算﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒9 3.1选择材料和许用应力﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒9 3.2按耐磨性计算螺纹中径﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒10 3.3自锁性验算﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒11 3.4螺杆强度验算﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒12 3.5螺母螺纹强度校验﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒12 4侧压螺母的结构尺寸设计﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒12 4.1侧压螺母高度H与外径D的确定﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒12 4.2侧压螺母的形式及材质的选用﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒14 5侧压电机的选择﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒16 5.1侧压螺丝传动力矩﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒16 5.2侧压电机功率﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒17 5.3选择侧压电机﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒ 17 6蜗轮蜗杆的设计与计算﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒ 17 6.1选择蜗杆传动类型﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒ 17 6.2选择材料﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒ 17 6.3按齿面接触疲劳强度进行设计﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒18 6.4蜗杆与蜗轮主要几何尺寸计算﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒19 6.5校核齿根弯曲疲劳强度﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒21 7蜗杆校核﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒22 7.1蜗杆受力分析﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒22 7.2按弯扭合成应力校核蜗杆的强度﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒25 7.3精确校核蜗杆的疲劳强度﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒26 7.4蜗杆的刚度计算﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒30 7.5蜗杆传动的效率和散热计算﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒32 7.5.1蜗杆传动的效率﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒32 7.5.2蜗杆传动的散热计算﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒33 8精度等级和表面粗糙度的确定﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒34 9滚动轴承的选择和寿命计算﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒34 9.1滚动轴承的选择﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒ 34 9.2滚动轴承寿命计算﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒ 35 10润滑系统﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒ 37 10.1蜗杆传动的润滑﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒ 37 10.1.1润滑油﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒ 37 10.1.2润滑油粘度及给油方法﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒ 37 10.2滚动轴承的润滑﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒ 37 10.3滚动轴承的密封﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒ 37 10.4侧压螺母的润滑﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒ 38 结语﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒39 参考文献﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒40 致谢﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒﹒41