Rice Lake Z6 Single-Ended Beam, SS Welded-seal, IP67, OIML C3 - Manual (Page 34)

30 Load Cell and Weigh Module Handbook
15.4 EZ Mount 1
In applications where substantial thermal
expansion/contraction is expected or room is not available to
raise a vessel significantly for load cell replacement, the EZ
Mount 1, also using a double-end, center-loaded module, is
an excellent choice to handle vessel movement and limited
space requirements.
The EZ Mount 1 uses a round load cell that allows the top
loading plate to pivot and correct minor alignment problems.
The module can also accommodate substantial movement in
the direction perpendicular to the longitudinal axis of the load
cell.
The load cell in the EZ Mount 1 is supported on hardened
circular spacers. Screws secure it to the base plate. The top
chair is held captive by removable pins on top and bottom of
the load cell. This allows the load cell replacement without
raising the vessel, but merely by taking the load off the
module.
EZ Mount 1 modules and load cells are available in alloy steel or
stainless steel in capacities from 5,000 lb to 250,000 lb.
Allowable Movement
Figure 15-7.
Construction and Features
1. Each end of the load cell is screwed to a base plate
through a hardened cylindrical spacer which is cross
drilled to allow the screw to pass through.
2. The chair assembly has a clearance hole through
which the load cell passes. A hardened load pin is
inserted horizontally at the top of the clearance hole
which transmits the load to the cell. This pin sits in
an annular groove at the center of the cell.
3. This arrangement allows the chair to move in
practically all directions, as illustrated in Figure 15-7,
while providing checking in all directions.
4. The load cell can be removed easily by raising the
vessel only enough to relieve the load from the cell.
5. The module is available in capacities from 5,000 lb to
250,000 lb in both mild steel and stainless steel. It
m a y b e u s e d w i t h t h e a l l o y s t e e l R L 7 0 0 0 0 ,
RL70000SS, RL71000HE or Vishay RTI 5103 and the
stainless steel Vishay RTI 9103.
Typical Application
Figure 15-8. EZ Mount 1 Weigh Module Arrangement
15.5 Translink
™
Truck Scale Modules
Self-centering mounting assemblies like the Translink are
classified as compression-type mounts, yet actually apply
load to their cells in a tension manner through a hanging
pendulum mechanism below the load cell. The pendulum
action gives them their unique self-centering ability.
The modules are commonly used to support a free-floating
platform 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-ended beams described so far, the
Translink mounting assembly uses an end-loaded shear beam
that is supported by a concave or convex insert in the center
that allows the cell to pivot.