How to choose electric hoist under high temperature environment
The hoisting mechanism is equipped with a support brake and a safety brake. When the electric hoist is working normally, it is braked by the cone brake motor. The cone brake motor is the support brake. When the cone motor brake fails or is in the middle When the transmission link fails, the DC electromagnetic brake installed on the high-speed shaft of the reducer brakes the heavy objects to avoid the danger of heavy objects stalling. At the same time, in order to coordinate the action between the cone brake motor and the DC electromagnetic brake, a delay device is added to the control circuit to avoid traffic jams in the motor.
With upper limit double limit function. The first limit is the limit of the heavy hammer, and the second limit is the limit of the upper and lower fire limiter of the conventional electric hoist.
Electric hoist lifting weight limit protection function, electric hoist lifting 90% rated load lifting weight limiter alarms, lifting 105% rated load electric hoist power off and stop working.
High temperature heat insulation protection function. The heat insulation board of the whole machine is designed and installed under the shell of the electric hoist drum to isolate the high heat radiation of the molten metal.
The insulation class of the hoisting motor and the running motor is F grade, and an overheat protection device is installed in the hoisting motor winding.
The steel wire rope is equipped with high-strength and high-temperature resistant steel wire rope specially used for metallurgical occasions.
The control method preferentially adopts remote control, and can also adopt centralized control.