The invention relates to a reset mechanism and a reset method, in particular to a reset mechanism and a reset method for a torque overload protection device. The problem that in the prior art, when a torque overload protection device is reset, the working condition is complex, and risks exist on the safety of operators and the reset timeliness is solved. The device comprises a fixed
flange, a sliding sleeve and a reset
flange which are coaxially arranged. The sliding sleeve and the reset
flange are both arranged on the fixed flange in a sleeving mode, the reset flange is fixedly connected with the ball head thrust rod, and an
air chamber exists between the sliding sleeve and the fixed flange. The fixed flange is fixedly connected to the base, and a plurality of sets of guide mechanisms are installed on the end face of the fixed flange. The device is simple in structure and easy to operate, workers do not need to go to an equipment site for operation, the
safety risk of the operators is reduced, meanwhile, the timeliness of power
recovery of the
mechanical transmission system is improved, and time is saved for
power transmission recovery of transmission shaft systems in industrial production and various special industries. The invention belongs to the technical field of overload protection couplings.