Load Introduction - HBM C2 Montageanleitung

Load introduction

5 Load introduction
When applied in weighing equipment, load cells are subjected to unwanted
side forces and moments. These may arise from deformation of the loaded
weighing machine structure or through thermals strains. To keep the effects on
the measurement resulting from these forces and moments as low as possible,
HBM supplies pendle supports and elastomer bearings as load introduction
components. Both types of load introduction components enable a design with
a degree of horizontal movement with respect to the load cells.
A deflection causes a reactive force which attempts to restore the weighing
machine to its original position. With the pendle supports this restoring force is
proportional to the deflection. This means that a different characteristic is ob­
tained, particularly under partial loading conditions.
The elastomer bearing also possesses higher damping in the horizontal and
vertical directions. In both cases no stay rods are needed. It is sufficient to limit
the horizontal movement of the weighing machine structure using mechanical
stops (S in chapter 8.2 Mounting accessories, on page 17).
perm
C2 9
A1683-2.0 HBM: public