At present, the most common way to adjust the speed of electric hoist in the market is to use inverter, but according to different product models, different equipment has its more suitable speed adjustment method. The following is a detailed introduction to how the electric hoist adjusts the speed? 1. The frequency converter can realize stepless speed regulation, and at the same time has high control accuracy, can be operated remotely, and is easy to use and maintain. However, it should be noted that frequency converters are generally not suitable for electric hoists of cone motors, because all frequency converters require acceleration time when starting. The voltage rises slowly during acceleration. The cone rotor cannot be shifted and the brake can be released instantly, which is easy to cause Inverter overload protection.　　2. The motor rotor resistance speed regulation has the advantages of simple structure, low price and average quality. Its disadvantage is that the speed changes relatively large and is unstable.　　3. A relatively stable speed can be obtained through the hydraulic push rod to adjust the speed, but the speed is low, the intermediate speed is soft, and the electric hoist mechanical parts must be partially modified when in use.　　4. Through the method of dynamic brake speed regulation, the speed gear can be adjusted and the energy saving is high. It is safe and reliable to use. The disadvantage is that the low speed is not good.　　 The use speed of the electric hoist directly affects the work efficiency. According to different electric hoists, choosing a more suitable speed regulation method can provide work efficiency. Solution to the problem of climbing frame electric hoist
When our commonly used climbing frame electric hoist has a long service life, its products will have some small problems, which are also probable. Then how do you overcome these technical problems when you encounter problems? Let's discuss with you. The first step is to check whether the voltage of the power grid is too low and whether the starting torque is proportional to the square of the voltage. If the acceleration torque cannot overcome the load torque and cannot reach the operating speed, then we should appropriately increase the power grid voltage. Secondly, we need to check whether the power fuse is blown. If one phase is broken, the motor will start in a single phase, the starting torque is zero, and the motor cannot rotate, so enough fuses should be replaced. It should be noted in time that when the load is too large or the transmission mechanism is faulty, the power of the electric hoist is generally reasonable to match the motor. Lifting heavy objects cannot be overloaded. If the electric hoist can not rotate, then we first remove the load, if the motor is normal Start, indicating that the gearbox and other transmission mechanisms are faulty. Check the dragged mechanism and clear the fault.