Torque sensor special for wheel hub motor

• Main Authors: LIN SHUNLUAN, ZHOU XUEJUN, HUANG DAGUI, YU PAN, FAN YUFANG
• Format: Patent
• Language: Chinese; English
• Published: 13.07.2016
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

The invention discloses a torque sensor special for a wheel hub motor. The torque sensor can accurately measure the real-time torques of middle and small outer-rotor linear switched reluctance motors. The sensor comprises a sensor tank part, a sensor pressure transferring and receiving integrated part, a sensor torque measuring electronic part and a coupling part. According to the technical scheme of the invention, when the outer rotor of a motor is running, the inner stator of the motor generates a drive torque on the outer rotor of the motor under the effect of electromagnetic interaction. Based on the action-reaction principle, the torque of the outer rotor of the motor and the torque of the inner stator of the motor are equal in value and opposite in direction. Based on the above principle, a novel torque sensor device is designed according to the corresponding relationship between the deformation amount of a strain gauge and the value of the torque. Therefore, the real-time torque of a wheel hub motor ca