In the course of use, electric hoist often encounters noise. Abnormal noise not only causes certain safety hazards to the equipment, but also affects people's normal work and life. How can the electric drum reduce the noise:
　　1. Requirements for high-speed gear machining accuracy
　　The technical conditions stipulate that the gear accuracy of the electric hoist hoisting mechanism reducer should not be lower than the 8-8-7 level in GB10095. The electric hoist has a compact structure, and the electric hoist whose motor axis is perpendicular to the axis of the drum adopts a worm gear transmission device. Its disadvantages are: large length, large width, rough structure, low mechanical efficiency, and difficult processing. The hydraulic system is dual-controlled, and the pressure can be precisely controlled by the overflow regulating valve and the magnetic contact pressure gauge. The electrical control department adopts low voltage control to increase the safety of the control system. Practice has proved that this requirement is reasonable and should be met in order to ensure that the noise reaches the standard. However, according to the gear processing technology of most factories in the same industry, the gear accuracy is difficult to meet the specified requirements.
　　2. Improve the gear tooth stiffness of high-speed GeA
　　 Increasing the tooth stiffness can reduce its elastic deformation and reduce the gear meshing impact force. It is an effective measure for electric hoist noise reduction. Increasing the gear module can significantly improve the gear tooth stiffness, which is simple and feasible.
　　 3. Choose a motor with as many poles as possible
　　Choosing multi-stage motors can reduce the noise of gears and motors, and the noise reduction of electric hoists is beneficial. However, due to the limitations of many factors and some design requirements, this choice is often impossible.
　　 remind you: When buying an electric hoist, not only should pay attention to the performance and quality of the electric hoist, but also the noise level of the electric hoist.