What are the structural characteristics of electric hoists

　　The electric hoist has a compact structure, small volume, light weight, simple operation, and convenient use. The structural characteristics of electric hoists are composed of electric motors, transmission mechanisms, drums or sprockets, and are divided into two types: wire rope electric hoists and loop chain electric hoists.

　　The electric motor is the power source of the electric hoist, usually using a conical rotor brake asynchronous motor, which has a large starting torque and does not require an external brake. The transmission mechanism is mainly composed of a reducer and a coupling. The reducer generally adopts a three-stage fixed axis helical gear rotating mechanism. The gears and gear shafts are made of heat-treated alloy steel, and the box body and cover are made of cast iron, with tight assembly and good sealing.

　　This structure ensures the stability and reliability of the electric hoist during operation. The drum device is used for retracting steel wire ropes or loop chains, and is divided into two types: single speed lifting and double speed lifting. The hook device is connected to the load and generally equipped with a safety card to prevent the cargo from detaching.

　　The control box is capable of cutting off the main circuit in emergency situations and is equipped with up and down stroke protection and fire cut-off limiters to ensure the safe operation of the electric hoist. The button switch is easy to operate, with two methods: rope control and wireless remote control.

　　The structural design of the electric hoist is reasonable, and all components work together to ensure its efficient and safe lifting performance. Electric hoists are widely used in industrial and mining enterprises, storage terminals, and other places for lifting, pulling, and loading and unloading heavy objects.

　　Concert stage construction using stage electric hoist

　　The stage construction requirements for a concert are strict, not only considering the size of the venue, audience perspective, but also the performance situation, etc. Stage construction requires careful design and meticulous planning. Under such high standards, stage electric hoists have become one of the commonly used tools for stage construction.

　　The main purpose of using stage electric hoists is to achieve rapid conversion of complex scenes and precise suspension of heavy equipment. These electric hoists can carry huge weights, ensuring that lighting, audio equipment, and stage scenery can be safely and smoothly moved to designated positions. When a concert requires quick changes in background video or lighting effects between different songs, the powerful function of electric hoists can come in handy. They can seamlessly switch scenes, avoiding long periods of darkness or idle time, thus maintaining the audience's viewing experience.

　　Stage electric hoists are particularly suitable for building multi-level and dynamically changing stages. In some international large-scale tours, designers often use electric hoists to create unique stage effects, such as suspended stages, moving platforms, etc., which greatly enrich the visual impact and artistic expression of the performance. The precise control capability of the electric hoist ensures the smooth implementation of these difficult designs, while also ensuring the safety of the performers.

　　The application of stage electric hoists in concert stage construction showcases a perfect combination of modern technology and art. It not only improves construction efficiency and reduces labor intensity, but also promotes the development of music performance art to a higher level.