M.V BEAGLE I
MAIN ENGINE :Man B & W 7S 35MC (MK-7) KAWASAKI
输出设备
Then HANSHIN DIESEL Works LTD
Crosshead Bearing
SAFETY PRECAUTIONS
X | Stopped engine |
X | Block the starting mechanism |
X | Shut off starting air supply |
X | Engage turning gear |
X | Shut off cooling water |
X | Shut off fuel oil |
X | Shut off lubricating oil |
| Lock turbocharger rotors |
| |
Data
Ref . Description Value Unit
D-1 Top clearance for new crosshead bearing : 0.15-0.40mm
D-2 Max .damaged areas 4100mm2
D-3 Hydraulic pressure—tightening 90.0MPa
D-4 Hydraulic pressure—dismantling 90.0-99.0MPa
D-5 Crosshead bearing cap 44kg
D-6 Telescopic pipe—tightening torque 40Nm
D-7 Bearing shell ,lower 9kg
D-8 Bearing shell ,upper 7kg
D-9 Piston rod—tightening torque 210Nm
D-10 Thrust piece—tightening torque 80Nm
Crosshead Bearing Checking
纪伯伦名言
十字头轴承的检查
Tin—Aluminum bearings
锡-碘缺乏病防治知识铝 轴承
小孩经常发烧The top clearance between the journal and a new bearing shell is the
result of a summation of the production tolerances of the bearing
asmbly components .
轴颈与轴瓦的顶部间隙是轴承装配成分产生的公差的总和.
The top clearance for a new bearing will normally be in the range stated
In Data .Note that the figures are to be ud for guidance only .
一个新轴承的顶部间隙通常在数据规定的列表中记录那个数值仅做为指导.
For the top clearance of a specific bearing ,e the measurement in
the Adjustment Sheet in Volume I ,OPERATION .
对于特殊轴承的顶部间隙看操作卷1中调节垫片的测量法.
1. Open the crankca door at the relevant cylinder .
打开相应缸的曲拐箱道门.
2. Turn the crankthrow concerned to BDC .
把有关的曲柄臂盘到下止点.
3. Measure the clearance in the crosshead bearing by inrting a feeler gauge
Between the bearing cap and the crosshead journal at the top of the
upper bearing shell .See Data .
带家字的男孩名字
在上轴承顶部,轴承盖与十字头轴颈间插入塞尺测量十字头的轴承间隙.
4. The difference between the actual clearance measurement and the
measurement recorded in the Adjustment Sheet (or the clearance noted for
a new bearing installed later) must not exceed 0.05mm .If so ,the crosshead bearing must be disasmbled for inspection .See Procedure 904-1.2 .
实际测得间隙的尺寸与调整垫片(或新轴承安装后的间隙)的尺寸之间的偏差不能大于0.05mm .
如果大于0.05mm,这个十字头轴承必须解体检查.
5. When the bearing has been disasmbled ,perform a visual inspection of the
bearing running surface .Sound areas of the over-layer will appear grey and soft .In damaged areas ,where the over-layer has been worn down or wiped off ,the underlying bonding layer will be expod .The bonding layer will appear bright and
非洲面具
hard .
当把轴承解体完时,对轴承运动表面进行视觉检查,有效区域呈现灰的柔和的磨损区域覆盖层已经磨损掉或擦掉了.下面的连接覆盖层显现出来,下面覆盖层呈现明亮而坚硬
For evaluation of the bearing shell ,e Chapter 708 , ‘Bearings’ in the
instruction book ,Volume I ,OPERATION .
评估轴瓦.看708章苔花如米小也学牡丹开,在轴承说明书操作1卷中.
Crosshead Bearing Dismantling
十字头轴承分解
This procedure has been divided into two dismantling situations ,as follows :
怎样祛皱程序分成两个分解情况,如下,
·with piston mounted
安有活塞的
·with piston removed
活塞被拿走了的
With piston mounted ;
安有活塞的
1. Turn the crankshaft down far enough to give access to the nuts
and screws on the piston rod .
向下盘曲轴足够远以至能给活塞杆的螺栓,螺母留有空间.
2. Mount two eye bolts in the top of the crankca and suspend two
tackles in the athwartship direction .
在曲轴箱顶部安两个挂环螺丝并在横过船的方向挂两个葫芦.
3. Loon and remove the four screws which tighten the telescopic pipe
to the bend .
松开并拿走伸拉管底部的四个螺丝
Suspend the telescopic pipe from the stuffing box using the wing
nut (tool) .
用蝶型螺母(工具)将拉管吊在扫气箱顶部.
Caution ! |
When a piston is dismantled ,never turn the engine without first dismantling the telescopic pipe from the crosshead . 当分解活塞时,如果拉管没从十字头上卸下来.不要盘车. |
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4. Remove the locking wire from the screws ,loon and remove the
screws from the piston rod foot .
