發布人：http://www.levels4life.com 發布時間：2019-06-11 10:18:29
Door opener is an important driving device for electric door opening and closing. It consists of motor, transmission mechanism and clutch device. It is usually used to check whether the manufacturing process is fine or not and whether the process quality inspection is strict to determine the quality of the door opener. However, this method can only analyze the quality of the door opener from its surface, but not from its essence. To know the quality of the door opener, what details should we decide from?
See motor horsepower. People often ask, how big is this door? Don't think that the size of the door opener is bigger and stronger. It's not scientific. In fact, the motor power depends on the rotor parameters (diameter, thickness) and the motor magnetic tile. The magnetic flux of rubidium-iron-boron material is 10 times that of ferrite material, and the price of rubidium-iron-boron material is 15 times that of ferrite material. Some small manufacturers can only sacrifice the quality of ferrite material considering cost and other factors.
2. Waterproof performance of motor. The influence of waterproof performance of motor is determined by the outlet of motor and the sealing ring of bottom cover. Most of the motors on the market are indoor motors, and the particularity of outdoor door door use is not really taken into account. As long as the customers compare the motors on the door, they will find that some motors in the market export is open, without any processing, no sealing, and the bottom cover of the sealing ring is green shell paper, such motors certainly can not achieve waterproof.
3. Look at the life of the motor. Material and manufacturing technology of motor worm, sleeve, reducer and volute, rotor support structure, mounting seat and other components determine the service life and anti-disturbance impact ability of motor. In the market, the outlet sleeve of some Motors has been replaced by the ordinary brass sleeve, and the rotor supporting structure also adopts the single rolling bearing + single copper sleeve supporting structure, which is obviously very unreasonable.