Unimog U500, Инструкция по монтажу

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Body and Implement Mounting Guidelines U500 North America Mechanical drive of implements
Page 190 of 294 August 2005
5.11.2 Angle of deflection/joint angle “
β
” of drive shafts
For continuous operation the angle of deflection
β
of the drive
shafts must not exceed 15
°
. For short periods of time an angle
β
of up to 30
°
can be tolerated, however not in high
power/torque transfer applications. The angle of deflection
β
between the PTO shaft (code N08) and the front mounted im-
plement may be up to 30
°
only in combination with low
power/torque transfer rates (Ref. sect. 5.9). Joint angles larger
than 15
°
and flange misalignment (
β
1
≠ β
2
) will result in critical
vibrations in the drive train. It affects the durability of auxiliaries
and can cause damages to vehicle and implement/body.
Different kinds of deflection:
•
Plane deflection (2D):” W” or “Z” deflection
•
Three-dimensional deflection (3D): In case of 3D-
deflection the centerlines of input and output shafts in-
tersect with a compound angle (angles in horizontal
and vertical plane).
Plane deflection
Figure 5.25: Z-deflection of a drive shaft
Figure 5.26: W-deflection of a drive shaft
The joint angles at both ends of the drive shaft must be equal.
The forks of the connecting shaft must be in the same plane.
A combined drive shaft assembly with Z deflection in one and
W deflection in the other plane should be avoided. This would
be the case if input and output shaft were not on one plane.