Rice Lake Weigh Modules/Mount Assemblies - Manual (Page 44)

2-15
WEIGH MODULES Double-Ended Beams
Translink TM Truck Scale Modules
Self-centering mounting assemblies like the Translink are classi-
fied as compression-type mounts, yet actually apply load to their
cells in a tension manner through a hanging pendulum mecha-
nism below the load cell. The pendulum action gives them their
unique self-centering ability.
The modules are commonly used to support a free-floating plat-
form like a truck scale. The platform’s horizontal float is limited by
bumper pads on all sides. The deck will always return to a central
position after lateral movement and not remain in contact with the
bumper pads.
Unlike the other double-end beams described so far, the Translink
mounting assembly uses an end-loaded shear beam that is sup-
ported by a concave or convex insert in the center that allows the
cell to pivot.
Allowable Movement
A
A
SECTION A-A
Figure 2-28
Construction and Features
1) A bridge is welded to a base plate. The bridge can accommo-
date a hardened convex or concave insert on which the load
cell sits. Two roll pins prevent the cell from sliding sideways.
2) A forged link hangs from each end of the load cell, and they
support a heat-treated load bar which passes under the bridge.
The load bar has circular grooves (corresponding to the
loading grooves in the load cell) in which the links sit, and the
top chair sits on each end of the load bar.
3) This arrangement allows movement in all horizontal direc-
tions, as shown in Figure 2-28.
4) This module has a pendulous action which tends to return the
deck to its original position after it has been disturbed longi-
tudinally or laterally.
5) This module is ideally suited to vehicle scales or high-capacity
vessel scales.
6) This module requires the scale to be checked in the horizontal
plane. Stay rods may be used or, because of the self-centering
action, bumper bolts are sufficient. It does not provide lift-off
protection which must be provided externally if required on
a vessel scale.
7) The Translink module is available in mild steel for the RL75040
or Sensortronics 65040 in capacities from 25,000 lb to 75,000
lb, and the RL75223 and RTI 5223 in capacities from 50,000
lb to 100,000 lb.
Typical Application
Figure 2-29