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发表于 2010-11-18 14:03
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来自： 中国山东烟台
2.轴系校中条件及准备
The condition and preparations for shafting alignment
2.1 本船采用灵活艉管，并且取消艉管前轴承；
This vessel apply flexible stern tube without forward stern tube bearing.
2.2 灵活艉管安装已交验。
The flexible stern tube has been installed and approved.
2.3 艉轴、中间轴、主机已经进舱。
The stern shaft, intermediate bearing, M/E have been in E/R.
2.4 螺旋桨处于半浸状态。
Propeller is semi-immerge condition.
3.轴系校中shafting alignment
3.1 按设计要求，检查和调整艉轴轴向位置（艉轴法兰前端面距离最后部
隔舱壁前端面1200mm）
Check and adjust the axial position of stern shaft as per design requirement
(The distance between stern shaft flange forward surface and the surface of the
aft peak bulkhead is 1200mm.)
3.2 使用临时支撑T1 支撑艉轴并在其上部位置施加向下的3T 力（临时支
撑位置及加力位置见图1，调整艉管前部与艉轴之间上下、左右间隙，
使上部间隙大于下部间隙，艉轴前部法兰中心线比理论中心线下降
0.5mm；左右间隙尽可能相等（允差0.02mm），使艉轴高度处于轴
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JLS563-421-003GY 轴系校中工艺规程 共 6 页 第 3 页
系校中计算书设计位置。调整后应将临时支撑T1 固定，拆除前不允
许其位置有任何变动，并在合适位置以艉轴法兰为基准制作一组基准
点（左、右、下）。
Provide a temporary support (T1) for stern shaft and apply a downward load of
3T on the top of stern tube (pls find the attached drawing1 for the positions of
temporary support and load).Adjusting the temporary support to adjust the
upper/lower, P&S clearance between stern tube fore part and stern shaft。 The
upper clearance is bigger than the lower, and stern shaft fore flange center line
falls 0.5mm against academic center line. Left clearance is the same with right
clearance (allowable tolerance is 0.2mm) so that the height of stern shaft is in
the position of shafting alignment calculation design position. Fix temporary T1
after adjusting, and not move until removing it. And making a group of datum
points (port, starboard and lower, total 3 points) as basis of stern shaft flange.
3.3 使用中间轴临时支撑T2（临时支撑T2 距离中间轴前法兰前端面为
2000mm），见图1。
图1 临时支撑位置/Fig 1 temp. support position
Use intermediate shaft temporary support T2 (The distance between T2 and
intermediate shaft forward face of forward flange is 2000mm.), see drawing 1.
3.4 以螺旋桨轴法兰为基准，调整中间轴和主机，直至中间轴法兰与螺旋
桨轴法兰间、中间轴法兰与主机法兰间的曲折和偏移满足要求，见图，
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JLS563-421-003GY 轴系校中工艺规程 共 6 页 第 4 页
要提前考虑环氧树脂的压缩量X/1000（X为环氧树脂实际高度）
Adjust intermediate shaft and M/E based on propeller shaft flange until the sags
and gasp between intermediate shaft flange and propeller shaft flange, as well
as intermediate shaft flange and M/E flange are in accordance with requirement,
please find the drawing. Should consider the epoxy resin compression X/100 in
advance (X epoxy resin actual height).
3.5 调整、测量并记录主机拐挡差、主机扭曲度、主机最后一个主轴承间
隙确认并满足要求。
主机拐挡差及扭曲度见表1，主机座下垂量见表3。
Adjust, measure and record the M/E crank web deflection, M/E longitudinal twist,
the last main bearing clearance of M/E confirmation, and satisfy with
requirements.
M/E crank web deflection and longitudinal twist, see figure 1, the M/E bedplate
sag curve, see figure 3.
3.6 固定螺旋桨、艉轴、中间轴、主机、临时支撑，准备漂浮
Secure propeller, stern shaft, intermediate shaft, M/E, temporary support to
prepare for floating.
3.7 待船舶漂浮48 小时后，复查艉轴位置是否变化。如有变化应调至原位
置。
Recheck the stern shaft position after floating 48 hours. If changed, it should be
recovered to the original position.
3.8 检查艉轴/中间轴、中间轴/主机法兰位移及缝差值是否满足计算书要
求，如不满足应重新进行调整。
Check gap and sag of stern shaft/intermediate shaft, intermediate shaft/ main
engine flange, if not satisfy with calculation, adjust them again. |
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