Smart stud-nut assembly
The present disclosure discloses a fastener assembly. The assembly comprises a stud having a head portion connectable to an actuator, and a shank extending from the head portion. At least a portion of the shank comprises threads, and an insulating material extends on the threads. A resistor module comprising one or more resistors is configured on the insulating material. One end of the one or more resistors is connectable to a power source, and other end of the one or more resistors is connectable to the power source through a nut engageable with the threads. A movement of the stud relative to the nut varies net resistance across the resistor module. The variation of net resistance across the resistor module may be used to determine position of the nut relative to the stud.
1. A fastener assembly, comprising:
a stud comprising a head portion connectable to an actuator and a shank extending from the head portion, wherein at least a portion of the shank comprises one or more threads;
an insulating material extending on the threads; and
one or more resistors, wherein one end of one or more of the resistors is connectable to a power source and another end of the one or more of the resistors is connectable to the power source through a nut engageable with one or more of the threads, movement of the stud relative to the nut varies net resistance across the resistors, the stud further comprises one or more casings accommodating at least a portion of a circumference of the shank on the insulating material, and the resistors are disposed between the insulating material and at least one of the casings.
2. The assembly as claimed in claim 1 , wherein the threads extend from a free end of the shank towards the head portion of the stud.
3. The assembly as claimed in claim 1 , wherein the actuator is a motor.
4. The assembly as claimed in claim 1 , wherein the nut is configured to be fixed and the head portion of the stud is rotatable by the actuator to perform at least one of fastening and unfastening of the stud with the nut.
5. The assembly as claimed in claim 1 , wherein the net resistance across the resistors is configured to be maximum at a free end of the shank and decreases along a length of the at least a portion of the shank from the free end towards the head portion of the stud.
6. The assembly as claimed in claim 1 comprises a control unit interfaced with the resistors and the actuator.
7. The assembly as claimed in claim 6 , wherein the control unit is configured to receive a user input corresponding to at least one of fastening and unfastening from an input module and operate the actuator to rotate the stud relative to the nut.
8. The assembly as claimed in claim 6 , wherein the control unit is further configured to detect variation in the net resistance across the resistor module to identify position of the nut on the shank.
9. The assembly as claimed in claim 6 , wherein the control unit operates the actuator to rotate the stud to vary position of the nut on the shank based on the net resistance across the resistors.
10. The assembly as claimed in claim 1 , wherein a predefined position of the nut on the shank is set by the user.
11. The assembly as claimed in claim 1 , wherein the resistors comprise a plurality of resistors in series.
12. The assembly as claimed in claim 1 , wherein the nut comprises another one or more threads comprising conducting material engageable with the threads of the at least a portion of the shank.
13. The assembly as claimed in claim 1 , wherein one or more of the casings comprise an additional one or more threads corresponding to the threads of the at least a portion of the shank.
14. A wheel hub of a vehicle comprising a fastener assembly as claimed in claim 1 .