One somewhat often used industrial product nowadays is a planetary reducer. Its high efficiency, great transmission ratio range, small size, low noise, smooth operation, etc. define it. In excavation, transportation, lifting and other sectors, it might be a supporting element. Under the condition of guaranteeing exact transmission, planetary reducer can lower the speed and also enhance the torque and the ratio of the moment of inertia of the drive motor to the load. In practical use, nevertheless, mistakes resulting from incorrect installation are somewhat prevalent. The primary kind of fault is the failure of planetary reducer and drive motor. How therefore ought the business handle the shaft break between the planetary reducer and the drive motor?
Some users believe that the selected reducer just needs to satisfy the work needs as long as the rated output torque is fulfilled. But this isn't the case:
First, the speed ratio multiplies the rated output torque of the drive motor to be assembled; subsequently, the value achieved must be smaller than the corresponding rated output torque supplied by the planetary reducer product sample;
Second, one also has to take into account the maximum operating torque needed in real use and the overload capacity of the drive motor.
Less than two times the planetary reducer's rated output torque is the maximum working torque the user could need. Certain applications especially have to rigorously follow the guidelines. This not only shields the gears and shafts within the reducer but also more significantly helps to avoid breaking the output shaft of the reducer.
The planetary reducer's output shaft experiences a brief impact torque both during acceleration and deceleration. Should it surpass double the rated output torque and such acceleration and deceleration be too frequent, the reducer shaft will finally break. Should this happen, one must figure and weigh raising the torque margin.