The invention discloses a method for lifting and releasing a descending mechanism through an intelligent
winch device. The method comprises the following steps that an
information acquisition elementis arranged on an output shaft of a winding drum, the movement speed and position information of a load vehicle which is lifted through the winding drum are acquired; a caliper
disc brake is arrangedon the output shaft of the winding drum; a plurality of hydraulic oil ports of the caliper
disc brake are connected with a hydraulic
system provided with an electromagnetic overflow valve, a proportional pressure reducing valve and an electromagnetic
reversing valve correspondingly; the hydraulic
system, the
information acquisition element and the
control system are connected correspondingly, thecontrol
system is enabled to control one or more of the electromagnetic overflow valve, the proportional pressure reducing valve and the electromagnetic
reversing valve to act according to the movement speed and the position of the load vehicle, the
oil supply pressure of the hydraulic system to the caliper
disc brake is adjusted so as to adjust the
brake torque of the caliper disc
brake to the load vehicle. According to the method, the caliper disc
brake directly brakes the output shaft of the winding drum, the
brake torque is large and adjustable, so that the caliper disc brake is suitable for braking the large load, and the speed reducing and braking effects on the load vehicle are improved.