Wheel core axle bolt pretightening force detection device

• Main Authors: HUANG DEJIE, WANG QINGDI, CHEN SONGHAI
• Format: Patent
• Language: Chinese; English
• Published: 23.04.2014
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

The utility model discloses a wheel core axle bolt pretightening force detection device comprising a base, a connecting block and a core axle. The connecting block is connected with the base; the core axle is connected with the connecting block and is provided with a through hole at the center; the axis of the through hole is perpendicular to the base; the lower end of the through hole is provided with an internal thread; a core axle bolt is disposed in the through hole; the lower end of the core axle bolt is connected with the lower end thread of the through hole; a support sheath is disposed on the outer side of the upper end of the core axle in a sleeved manner and is in clearance fit with the core axle; the upper end of the support sheath is higher than the upper end of the core axle; the core axle bolt is contacted with the upper end of the support sheath; a strain foil group is bonded to the outer side face of the support sheath and is connected with a strain adapter which is connected with an industria