Traditional steel wire rope electric cucurbitally use cone -shaped rotor brake motors as a power -driven device for the promotion and operating mechanism. The stator cavity, rotor and braking device of the motor are conical. Processing and assembly automation, low production efficiency. The inherent characteristics of conical rotor brake motors restrict the improvement of the performance of steel rope electric gourds.
(1) Low efficiency. The electrical gap between the conical rotor brake motor is large, the loss is high, and some of the consumed electric energy is transformed into the torque of the motor, and some of them are converted into axial magnetic pulling power, which makes the energy efficiency lower.
(2) Large noise during opening and braking. With the axial movement of the rotor during the opening and braking, the mechanical impact has a large noise.
(3) Low power continuity and low work efficiency. The axial motion characteristics of cone -shaped rotor brake motors and large electrical gaps determine its low continuity of electricity, generally not higher than 40%, affecting work efficiency.
(4) Smart braking control cannot be achieved. The stability and decline of braking depends on the choice of the initial speed of the electrical braking and the timing of the brake on the brake. GB/T 3811-2008 "Code for Design of Liggling Machines" and experience design are the motors starting first when starting, and the brakes are delayed to open the gate; the brakes at the time of braking are turned on the gate early to reduce the decline in braking and reduce brake wear. , Extend the life of the brake. In the occasion of frequency conversion control, the operation control of the motor should be separated separately with the opening and closing control of the brake to achieve the work of the motor and brake. The conical rotor brake motor does not have a separate brake, and can only work synchronized with the motor and cannot achieve separate control.