Bolt tightening force coefficient measuring method
A measurement method and technology of tightening force, applied in the direction of measuring devices, testing of mechanical components, testing of machine/structural components, etc., can solve the problems of large dispersion of K value, many factors affecting K value, and difficult to handle properly. To achieve the effect of preventing bolt overload and ensuring tightness
- Application Information
AI Technical Summary
Problems solved by technology
 Step 1: Calibrate the pressure sensor, apply a force P of 0~180KN to the pressure sensor through the tensile test machine pressure fixture 0 , and record the voltage U of the force sensor 7 under different forces through the software of the tensile testing machine, the data of the force and voltage obtained are shown in Table 1, and the force-voltage curve is drawn as attached image 3As shown, according to the formula (1), the pressure-voltage relationship is obtained.
 U=kF+b (1)
 U——the voltage displayed by the pressure sensor, in V;
 F——the force exerted by the tensile testing machine, in N;
 k—coefficient, unit V / N;
 b——the initial voltage displayed by the pressure sensor when the force is 0, in V.
 The pressure-voltage relationship in this embodiment is: U=0.028 P0+0.0254.
 Table 1 Pressure and sensor voltage detected during calibration of tensile testing machine
 Step 2: As attached...
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