Worm gear reducer, as an important model of reducer equipment, has won the praise of many users. In addition, customers are also very concerned about the purchase of equipment. After all, this is related to the use effect and thus affects the production efficiency. To share with you what can be used as a reference when purchasing this product:
1. Choose according to the power supply
电动机的供电电源有单相和三相两种，单相电源大多数是220伏,而许多场合也有采用12,24,36,42或110伏的。在国外,也有采用100伏或220伏的。三相电动机多数采用三相380伏电源，但也有采用36,42或220伏的三相电源。在频率方面,我国及部分国家采用50赫,而世界上如欧美一些国家也有采用60赫的。因此,在使用前应首先认清电动机的使用电压(铭牌额定电压)和频率是否和电源-致,如果电源电压高于或低于电动机的使用电压太多,均会使电动机烧毁。在提供设计时,电动机允许电源电压波动士5%不影响电动机正常工作。为确保电动机能正常工作,又不改变它的性能。煤泥烘干机
2. Choose according to the starting situation of the motor
For the motor of the worm gear reducer that starts frequently, that is, the starting frequency is 10-20 times/min. When selecting the motor, a larger capacity motor should be selected appropriately.Because the starting current of the motor is relatively large when starting, the corresponding input power is relatively large. Therefore, the selection of a larger power motor will make the load power smaller than the motor power, so the temperature rise of the motor will not be too high.
3. Choose according to the matching situation with the load
When using a capacitor to run an asynchronous motor, its power should be roughly the same as the load power, and there should not be too much margin, because the loss of the capacitor running motor is relatively greater when it is at or near no load, so the temperature rise It is also relatively high. If the motor is operated for a long time under this condition, the temperature of the motor may exceed the allowable temperature rise, which will accelerate the insulation aging of the motor, and may cause the motor to burn out in serious cases.
4. Choose according to the over torque of the load
When the worm gear reducer often has load over torque, it is not suitable to use single-phase electric limit start asynchronous motor and capacitor start asynchronous motor, because when the load torque is greater than the rated torque of the motor, the speed of the motor will be affected. It may be reduced to 75%-80% synchronous speed or lower. At this time, the centrifugal switch of the motor may be closed again.If this happens more frequently or the time lasts longer each time, the starter winding will be put into work again.In the design, the starting winding of the motor is only used for a short time, and the current density is selected relatively high. If the working time is too long, the starting winding may be burned out, so only other types of motors can be used.
This article clearly lists the reference conditions for purchasing a worm gear reducer: power supply, motor starting condition, load matching condition and load overtorque condition, so that we can better choose the product.
