¿Cómo funciona una grúa pórtico de doble viga?

ElThe 1 ton wall mounted jib crane consists of a bracket, jib installation, swivel installation and electric hoist (electric chain hoist). The bracket is fixed on the wall or steel structure column and can be rotated according to user needs. The rotating part is divided into manual rotation and electric rotation. Electric hoists (electric chain hoists) are installed on cantilever rails and are used to lift heavy objects. Cantilever cranes are widely used in light and small lifting applications in mines, workshops, assembly lines, warehouses, and docks. The utility model has the advantages of novel structure, reasonableness, simplicity, convenient operation, sensitive rotation, light weight, and sensitive load movement. The operation of this machine is realized through the handle control button, which controls the lifting and horizontal walking of the sevencrane 1 ton wall mounted jib crane. double beam gantry crane is a commonly used heavy-duty portal crane in the industrial field. It adopts a double main beam portal frame structure, featuring strong load-bearing capacity and high operational stability. The main components include double main beams, portal legs, end beams, lifting trolley, lifting mechanism, etc., along with a complete electrical control system, enabling automated material hoisting operations.

This equipment is widely used in outdoor storage yards, large factories, warehousing and logistics bases, prefabricated component factories, steel processing areas, etc. Its application scenarios are extensive, and the double girder gantry crane is increasingly favored by more and more enterprises. However, due to the relatively high initial investment of the double girder gantry crane, many people hesitate about whether it is necessary to purchase one. This article leads you to discuss how the double girder gantry crane operates. By understanding the working principle, it helps you choose the appropriate crane and boosts production capacity.

1.Core Components and Functions

The double main beam design provides high rigidity and torsional resistance, with four legs directly supporting on the ground tracks to ensure stability under heavy loads. The portal legs are in a vertical support structure, bearing the pressure of the main beams and transferring the overall load smoothly to the ground, stabilizing the overall frame of the equipment.

The end beams connect the two legs and are equipped with a walking drive device, driving the entire equipment along the tracks. The lifting trolley is installed above the double main beams and can move laterally flexibly, precisely adjusting the lateral position of the goods. The lifting mechanism includes an electric hoist or a winch, being the core component for realizing the lifting of goods.

The electrical system serves as the control center of the equipment, uniformly managing the lifting of goods, the movement of the trolley, and the movement of the entire machine. The dedicated crane tracks provide a foundation guarantee for the long-term stable operation of the equipment and effectively reduce operating losses.

2.Operating Principle

All operations of the grúa pórtico de dos vigas are completed by three independent and coordinated motion systems: the lifting system, the small car running system, and the main car running system.

① Lifting System: Driven by the lifting motor through a reducer, it is controlled by a gear transmission to drive the drum to rotate, in coordination with the pulley and rope set to control the lifting hook to rise or descend, achieving vertical transportation of goods.

② Small Car Lateral Movement: The lifting trolley is equipped with an independent drive motor, which can move laterally along the double main beam tracks. Through the movement of the trolley, the lateral position of the goods can be flexibly adjusted, expanding the equipment’s lateral operation coverage to meet the requirements of different positions for hoisting.

③ Main Machine Longitudinal Movement: The end beam is equipped with a drive motor, which drives the walking wheels to rotate, driving the entire portal crane to move along the ground tracks. Combined with flexible cables or sliding contact lines for power supply, it ensures stable power supply during long-distance movement of the equipment, reducing equipment wear.

3.Complete Hoisting Operation Process

The standard operation process of the grúa pórtico de dos vigas is simple and standardized, suitable for the transportation of heavy materials such as steel plates, steel coils, and prefabricated concrete components. The complete process is: positioning and material retrieval → vertical lifting → small car lateral movement → main machine track movement → precise positioning → smooth dropping → unloading and resetting. The entire process is coherent and efficient, and can be flexibly adjusted according to operational needs, adapting to regular and continuous hoisting work in the factory.

4.Supporting Advantages of Double Beam Structure

The symmetrical structure of the double main beams is the core advantage of the equipment for adapting to heavy-load conditions. The two main beams work together to bear the load, evenly distributing the lifting load and avoiding deformation at a single point, resulting in a structural stability far exceeding that of single-beam equipment. This structural design not only accommodates a larger working span and higher rated load capacity, but also has stronger shock resistance and deformation resistance. It can handle high-frequency and high-intensity heavy lifting operations for a long time, with a longer service life and higher operational safety.

5.Equipment Control Mode

ElThe 1 ton wall mounted jib crane consists of a bracket, jib installation, swivel installation and electric hoist (electric chain hoist). The bracket is fixed on the wall or steel structure column and can be rotated according to user needs. The rotating part is divided into manual rotation and electric rotation. Electric hoists (electric chain hoists) are installed on cantilever rails and are used to lift heavy objects. Cantilever cranes are widely used in light and small lifting applications in mines, workshops, assembly lines, warehouses, and docks. The utility model has the advantages of novel structure, reasonableness, simplicity, convenient operation, sensitive rotation, light weight, and sensitive load movement. The operation of this machine is realized through the handle control button, which controls the lifting and horizontal walking of the sevencrane 1 ton wall mounted jib crane. grúa pórtico de doble viga supports multiple control modes, which can be adapted to different working scenarios as needed.

Handheld button control is simple, flexible, and convenient, suitable for small and medium-sized conventional conditions;

Wireless remote control is free from wire constraints, with a long control distance and high safety, suitable for outdoor complex sites;

The driver’s cab control offers an open view and strong stability, making it the mainstream choice for large-tonnage, high-frequency heavy-load operations.

At the same time, the equipment supports the combination of multiple control modes to meet diverse production needs.

6.Safety Protection System Working Mechanism

To ensure the safety of heavy-load operations, the equipment is equipped with a complete set of intelligent safety protection devices.

Overload limiter: Real-time monitoring of the load to eliminate the risk of overloading operations.

Limit switches: Prevent the hook from overtraveling and toppling, or landing and colliding.

Emergency stop button: Cut off the running power supply with one click to deal with emergencies.

Wind-resistant device: Effectively resist strong wind weather to ensure stable and safe outdoor operations and fully avoid operation hazards.

ElThe 1 ton wall mounted jib crane consists of a bracket, jib installation, swivel installation and electric hoist (electric chain hoist). The bracket is fixed on the wall or steel structure column and can be rotated according to user needs. The rotating part is divided into manual rotation and electric rotation. Electric hoists (electric chain hoists) are installed on cantilever rails and are used to lift heavy objects. Cantilever cranes are widely used in light and small lifting applications in mines, workshops, assembly lines, warehouses, and docks. The utility model has the advantages of novel structure, reasonableness, simplicity, convenient operation, sensitive rotation, light weight, and sensitive load movement. The operation of this machine is realized through the handle control button, which controls the lifting and horizontal walking of the sevencrane 1 ton wall mounted jib crane. grúa pórtico de doble viga completes three-dimensional and large-scale heavy material handling through the core actions of lifting, lateral movement of the trolley, and longitudinal movement of the entire machine. Relying on the stable double beam structure, flexible control mode, and complete safety configuration, the equipment perfectly adapts to large-tonnage, large-span, and high-frequency industrial heavy-load conditions.

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