When designing the transmission system scheme of an electric chain crane, multiple factors need to be comprehensively considered, including the performance requirements, working environment, safety, reliability, and cost of the crane. The following is an overview of a transmission system design scheme based on these factors:

1、 Transmission system composition

The transmission system of an electric chain crane mainly consists of driving mechanism, transmission mechanism, lifting mechanism, and electrical control system.

Driving mechanism:

Usually composed of an electric motor and a reducer, the electric motor provides power, and the reducer is used to reduce the speed and increase the torque to meet the lifting and moving needs of the crane.

When selecting an electric motor, it is necessary to consider parameters such as power, speed, efficiency, and protection level to ensure that it can meet the performance requirements of the crane and adapt to the working environment.

Transmission mechanism:

The transmission mechanism is responsible for transmitting the power of the electric motor to the lifting mechanism, usually composed of components such as gears, sprockets, chains, etc.

When selecting a transmission mechanism, factors such as transmission efficiency, load-bearing capacity, wear resistance, and maintenance convenience need to be considered.

Lifting mechanism:

The lifting mechanism is a key part of a crane that realizes the lifting of heavy objects, usually composed of components such as a drum, steel wire rope (or chain), pulley block, etc.

When designing the lifting mechanism, it is necessary to ensure its compact structure, smooth transmission, sufficient load-bearing capacity, and set up necessary safety protection devices (such as limiters, overload protectors, etc.).

Electrical control system:

The electrical control system is responsible for controlling the operation of the crane, including the starting, stopping, speed regulation, and safety protection functions of the electric motor.

When designing an electrical control system, reliable electrical components and advanced control technology are required to ensure the safe and efficient operation of the crane.

2、 Transmission system design scheme

Motor selection:

Select the appropriate motor model and specifications based on factors such as the lifting capacity, working speed, and working environment of the crane.

Ensure that the power, speed and other parameters of the motor meet the performance requirements of the crane, and have a high level of protection to adapt to harsh working environments.

Transmission mechanism design:

Adopting efficient transmission mechanism design, such as gear transmission or chain transmission, to improve transmission efficiency and load-bearing capacity.

Select wear-resistant and corrosion-resistant materials to make transmission components, and install necessary lubrication devices to reduce wear and friction.

Optimization of lifting mechanism:

Optimize the structural design of the lifting mechanism to ensure smooth transmission and sufficient load-bearing capacity, and install necessary safety protection devices.

Choose high-strength and wear-resistant steel wire ropes (or chains) as lifting components to improve their service life and safety.

Electrical control system design:

Adopting advanced electrical control system design, including PLC control, frequency converter speed regulation and other technologies, to achieve automation and intelligent control of cranes.

Set up comprehensive safety protection functions, such as overload protection, limit protection, emergency stop protection, etc., to ensure the safe operation of the crane.

System integration and testing:

Integrate the driving mechanism, transmission mechanism, lifting mechanism, and electrical control system to form a complete transmission system.

Conduct comprehensive testing and debugging of the transmission system, including functional testing, performance testing, and safety performance testing, to ensure that it meets design requirements and achieves expected results.

3、 Precautions

Safety: Safety should always be the top priority in the design process, ensuring that all parts of the transmission system have necessary safety protection devices and measures.

Reliability: The transmission system should have good reliability and durability to meet the long-term and high-frequency usage needs of cranes.

Maintainability: The design of the transmission system should be easy to maintain and repair, in order to reduce maintenance costs and downtime.

Economy: While meeting performance requirements, the cost of the transmission system should be minimized as much as possible to enhance the market competitiveness of cranes

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