Explosion proof: Electric hoist (electric crane) is a lifting equipment used in special environments, and its structural design has significant characteristics to ensure safe operation in flammable, explosive and other dangerous places. The following is an analysis of the structural characteristics of the main components of the explosion proof electric hoist:

1. Main beam and crossbeam structure

Material and Construction: The main beam is usually made of U-shaped channel steel rolled from steel plates, and then welded with I-beams to form a box shaped solid web beam to increase bearing capacity and stability. The crossbeam is also rolled from steel plates into U-shaped channel steel, and then assembled and welded into a box shaped crossbeam to ensure the overall structure is sturdy and durable.

Connection method: For the convenience of storage and transportation, high-strength bolts (such as M0 bolts) are often used to connect the main crossbeams, ensuring a tight and reliable connection.

2. Explosion proof electric hoist

Lifting and moving: Explosion proof electric hoist is the core component of explosion proof electric hoist, responsible for lifting heavy objects and moving longitudinally along the main beam. Its structural design must comply with explosion-proof requirements to ensure safe operation in explosive environments.

Structural features: The specific structural features of explosion-proof electric hoists are detailed in the relevant instructions, but generally speaking, key components such as motors, reducers, and brakes need to be designed with explosion-proof types to avoid sparks or high temperatures that may cause explosions.

3. Electrical equipment

Drive motor: Explosion proof: The drive motor for electric hoists usually uses explosion-proof conical rotor three-phase asynchronous motors, which have explosion-proof performance and can operate safely in hazardous environments.

Electrical control: The electrical control system needs to use explosion-proof electrical components and install necessary safety devices, such as lifting limit switches, terminal limit switches, etc., to ensure the safety and reliability of the equipment during operation.

4. Transmission system

Gear transmission: Some explosions have proven that electric hoists use a "one open one closed" gear transmission, and the closed gear part may borrow the reducer of the standard hoist running small car part to improve the stability and efficiency of the transmission.

Convenient maintenance: The design of the transmission system should consider the convenience of maintenance, so that it can be quickly and conveniently inspected and replaced when necessary.

5. Safety protection

Explosion proof enclosure: All components that may generate sparks or high temperatures must be placed inside the explosion-proof enclosure to prevent explosive gas mixtures from entering and causing explosions.

Temperature control: Through appropriate heat dissipation measures and temperature monitoring methods, ensure that the equipment does not pose a danger during operation due to excessive temperature.

6. Other characteristics

Environmental adaptability: The explosion proves that electric hoists need to have good environmental adaptability and be able to work normally in harsh environments such as high temperature, low temperature, and humidity.

Long life design: By selecting high-quality materials and optimizing structural design, the equipment ensures a long service life and low failure rate.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment