必须对钢丝绳的整个长度进行检查。应特别注意下列部分及其状况:
在固定端及起重卷筒处的钢丝绳端部。
支撑轮处。
中间滑轮位置。
图8:对钢丝绳松散处内部进行检查
图9:对钢丝绳末端内部进行检查
名称 日期 篇 页码
起升与小车运行 99-06-03 EH06-0010 23/45
报废依据
钢丝绳是否安全根据下列条件确定:
钢丝断裂的情况及数量;
钢丝靠近端部断裂;
钢丝断裂的集中程度;
钢丝断裂的增加程度;
股断裂;
由于钢丝绳芯损坏,直径减小;
弹性降低;
内部和外部磨损;
腐蚀;
外形变化;
因热或电原因而造成的损坏
如果钢丝绳的损坏是由于起重设备故障造成的,则在更换钢丝绳之前,必须对设备起重实施修复。
图10: 需要立即报废的钢丝绳示例
关于起重钢丝绳检查和报废的更多资料,请参阅 DIN 15020 Blatt 2 标准。
页码 篇 日期 名称
24/45 EH06-0001 99-06-03 起升与小车运行
06.1.15. 检查吊具上架(如果有)旋锁
旋锁必须:
在 5000 操作小时后或 2 年后进行第一次检查,以先发生的时间为准。
在此之后,必须每年检查一次。
位置 说明
1 锁定装置
2 转臂
3 螺母
4 旋锁
名称 日期 篇 页码
起升与小车运行 99-06-03 EH06-0001 25/45
06.1.15.1. 拆卸及装配
1、 将吊具下落到地面或集装箱上。
2、 拆下竖管的螺丝,打开旋锁转臂的锁定装置(1),然后拆下锁定销。
3、 将转臂(2)转动 90°。
4、 将上架与吊具分开。
5、 松开两个 M8 螺丝,拆下旋锁上部的楔子。
6、 松开螺母(3),拆下转臂,旋锁松开。
按照旋锁检查操作规程,检查旋锁状况。
以相反的步骤安装旋锁。
Inspectionmustbeperformedatthefulllenghtoftherope.Payspecialattentiontothefollowing
parts and their condition:
D
Wire terminals, at the fixed end and at the hoist drum.
D
By the support wheel.
D
Intermediate sheave positions.
Figure 8. Internal inspection of free part of rope
Figure 9. Internal inspection near terminal
Description
Date
Group
Page
Working Devices
99--06--03 EH06--0010
23/45
Discard basis
Whether the rope is safe to use or not is determined by the following:
D
Nature and number of wire breaks
D
Wire breaks near terminals
D
Concentration of wire breaks
D
Build up degree of wire breaks
D
Strand brakes
D
Reduced diameter due to a damaged core
D
Decreased elasticity
D
Internal and external wear
D
Corrosion
D
Change in form
D
Damage caused by heat or electricity
If the damage in the rope is caused by failure in the lifting appliance, it must be repaired before
rope changing.
Figure 10. Exaples of requiring immediable discarging
For additional information about hoist rope inspection and discarding refer to standard DIN
15020 Blatt 2.
Page
Group
Date
Description
24/45
EH06--0001 99--06--03 Working Devices
06.1.15.
Inspection of headblock (if using) twist--locks
The twist--locks must be checked:
FIRST TIME after 5000 operating hours or 2 years whichever occurs first.
After that the twist--locks must be checked once a year.
1
2
3
4
Pos
Description
1
Locking device
2
Turning lever
3
Nut for catch
4
Twist--lock
Description
Date
Group
Page
Working Devices
99--06--03 EH06--0001
25/45
06.1.15.1.
Disassembly and assembly
1. Lower top--lift on the ground or over container.
2. Open locking device (1) of twist--lock’s turning lever by removing screw from vertical pipe,
and then removing locking piston.
3. Turn the lever (2) 90_.
4. Headblock is then separated from top--lift spreader.
5. Remove wedge from the top of twist--lock by untightening both M8 screws.
6. Unscrew nut for catch (3). Turning lever can then be lifted off, and twist--lock is released.
Check the condition of twist--locks as explained in spreader twist--lock inspection
instructions.
Assembly of twist--lock is done in a reversed manner