Car elevator traction machine for car elevator

The permanent magnet synchronous traction machine (1) with energy saving, environmental protection, stable operation, low noise and small floor space is adopted. Simple structure, no need for gearbox. The process is simpler, the volume and weight are reduced, and the effective space utilization rate is improved. 2, low vibration and noise, especially in the low-speed operation area, the advantage is more obvious, the operation is stable, and the speed regulation accuracy is high. Most of the noise of the traditional gear elevator comes from the mechanical vibration generated by the gearbox and the vibration and noise of the high-speed rotating motor itself. Gearless traction machine does not need reduction gear box, and the rated speed of the motor is very low, so the vibration and noise of the motor itself are very small, and the noise of the whole elevator system is greatly reduced. 3. Because the gearless speed regulation is realized and there is no secondary deceleration process, the loss of the gearbox is saved and the efficiency is improved. At the same time, after using permanent magnet excitation, excitation current and excitation loss are not needed, and the efficiency can also be improved. 4. High power factor. The power factor can be as high as above 0.9. 5. Safe, reliable and comfortable. Using permanent magnet synchronous motor to drive can effectively prevent the elevator from slipping. At the same time, the motor can also provide enough torque at low frequency, low voltage and low speed to avoid the jitter of the elevator during starting and deceleration, and improve the comfort of the elevator during starting and braking. 6. Elevator without machine room with various traction modes can be arranged, which shows a high degree of freedom and flexibility even when there are machine rooms and small machine rooms. Characteristics of car elevator

(1) The load of the elevator suddenly increases and decreases, and the car is unevenly stressed. This is quite different from the way that ordinary freight elevators gradually load or unload by load. The structural design of car elevator should be able to adapt to this feature.

(2) There are two control button boxes in the car, so the driver can control the elevator without getting off;

(3) The rated load is more than 3 tons, and the compartment area is enough to load all kinds of small cars;

(4) Set front and rear through doors to facilitate the car to enter and exit the elevator.

(5) Having a car suitable for carrying passengers. Car is the only factor that distinguishes car elevator from other elevators in the definition of car elevator, which determines that the internal size of car elevator should adapt to the shape of bus. According to the new definition standard of economical cars and the Code for Design of Garage Buildings, the overall dimensions and weights of various passenger car design models are determined (see table 1). Therefore, the car size of the car elevator should also be determined.