Working principle of fastener friction coefficient detector

Working principle of fastener friction coefficient detector
Installation sample: Install the bolt and nut into the fixture of the testing machine to ensure correct installation.
Apply axial force: apply axial force through the loading system to simulate the pre-tightening force in actual assembly.
Apply torque: apply torque through the torque sensor to make the bolt or nut rotate.
Data acquisition: Real-time recording of torque, axial force, rotation angle and other data.
Calculation of friction coefficient: According to the relationship between torque and axial force, calculate the total friction coefficient, thread friction coefficient and bearing surface friction coefficient.