Screw Tester- Engineering Lab Training Systems Description and Specifications for Lab Tenders
Screw Tester- Engineering Lab Training Systems.
Technical Description
The main element of the unit is a
slotted, elastically deformable steel block. By tightening the bolt
joint, the slotted area is deformed, thereby generating an axial tension
force in the bolt. The resulting deformation is recorded by a
mechanical dial gauge, and is directly related to the bolt tension force
generated. The bolt joint is tightened and slackened using a special
torque wrench, which can be set sensitively with the aid of a threaded
spindle. By using an axial bearing, the head friction of the bolt can be
largely excluded, so that only the friction of the threaded joint is
measured.
The well-structured instructional material outlines the
fundamentals of the theory and provides a step-by-step guide through the
experiments.