There are many applications for laser measurement
at a shipyard, both when building new ships, when repairing damaged ships
or for ordinary maintenance.
Alignment between shaft and gearbox
Alignment between shaft and gearbox are made with Shaft alignment equipment,
using two measuring units mounted at each side of the coupling.
If the ship is in water the Horizontal program must be used, because it does not
depend on the electronic inclinometer, which is used in program EasyTurn™
(The inclinometers are affected by the ship movements in the water.).
The result of the measurment shows how to shim and adjust the gearbox to
get the drive line straight.
Alignment of bearing journals and sterntube
Alignment of bearing journals and sterntube (or gearbox) are made with
Linebore equipment, using a laser transmitter mounted to the axial
surface at the end of the sterntube (or the gearbox flange), and a detector
unit placed in the bearing journal.
Measurement values are recorded in
two positions for each journal (the detector unit is rotated 180°),
the measurement program then calculates and displays the position in
horizontal and vertical direction.
Measuring the flatness of a slewing bearing
To measure the flatness of a slewing bearing for a crane you need the
Laser transmitter D22 (or D23). The transmitter is fixed with its magnets
at the flange. The detector unit is placed at marked points all around the
flange, and measurement values are recorded at each.
Three zero (reference) points at 120° pitch are computed by the system.
The result can be displayed as a 3D graph or with values.
You can change zero points to get minimized values for the tooling work.
A. Measuring the straightness of a sterntube centerline.
B. Measuring the straightness of a bearing journal centerline.
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