What's the difference between gearless traction machines and geared tractors?
The rotating part of the motor of the gearless traction machine is directly connected with the driven wheel and the traction wheel with the same axis. There is no mechanical reduction mechanism, and the structure of the whole machine is relatively simple
Gearless tractors are usually powered by direct current motors. Because there is no reduction box as the intermediate drive link, it has the advantages of high transmission efficiency, small noise and stable transmission. But it has many disadvantages, such as high energy consumption, high cost and inconvenient maintenance. With the development of variable frequency variable voltage technology, AC gearless permanent magnet synchronous traction machine has been widely used
Geared machine are widely used in all kinds of goods elevator, speed less than 2m/s elevators, sundries elevator. In order to reduce the noise and improve the stability of the traction machine, the gear box usually adopts worm gear transmission device, which has the advantages of large transmission ratio, compact structure and stable transmission. This kind of tractor is mainly composed of traction motor, coupling, worm, worm gear, brake, traction wheel, frame and so on.
The simplest is no teeth, no reducer, gear reducer, and now generally use toothless more
