Golvmonterad jibbkran: sammansättning och underhåll

When it comes to heavy lifting and efficient material handling in various industries, floor-mounted jib cranes play a vital role. These versatile machines consist of several components carefully designed to ensure stability, functionality, and safety. In this article, we will delve into the composition of a floor-mounted jib crane, exploring its key parts and how they are maintained.

Composition Of Floor Mounted Jib Crane

The Base

The foundation of a floor-mounted jib crane lies in its base. Typically made of sturdy steel, the base provides stability and support to the entire structure. It is securely anchored to the floor, ensuring reliable performance even when dealing with heavy loads. The base is designed to distribute the crane’s weight and the forces exerted during operation, preventing excessive stress on the floor and maintaining overall structural integrity.

Vertical Mast

Rising from the base, the vertical mast serves as the backbone of the jib crane. Constructed from robust materials such as steel or aluminum, the mast provides vertical support and stability to the crane arm or boom. The height of the mast determines the maximum possible lift height, making it an essential consideration for specific lifting requirements.

Boom

At the end of the vertical mast, you’ll find the boom of the jib crane. This horizontal beam extends outward and is responsible for carrying the load. Booms are typically made of high-quality steel and can vary in length based on the desired reach. They are engineered to withstand the stresses imposed by lifting heavy objects while ensuring smooth movement and precise control.

Rotation Mechanism

Another critical component of a floor-mounted jib crane is its rotation mechanism, which allows for full 360-degree rotation. A slew bearing or turntable is incorporated at the base of the mast, enabling the crane to move horizontally and cover a large working area without repositioning the base. This rotation feature enhances operational flexibility and efficiency, reducing the need for additional equipment or extensive manual labor.

Hissa

De hissa is the part responsible for lifting and lowering loads in a floor-mounted jib crane. It comprises a motorized system with a chain or wire rope and a hook or other load-carrying devices. The hoist is securely attached to the boom, enabling controlled vertical movement of materials. The lifting capacity of a jib crane depends on the strength and specifications of its hoisting mechanism.

Controls And Safety Features

Floor-mounted jib cranes are equipped with user-friendly controls and safety features to ensure smooth operation and protect both workers and the surrounding environment. These can include push-button pendant controls, radio remote controls, limit switches, emergency stop buttons, overload protection, and anti-collision systems. Implementing these safety measures minimizes the risk of accidents and promotes efficient workflows.

Working Principle Of Floor Mounted Jib Crane

The working principle of a floor-mounted jib crane revolves around its pivotal motion and lifting mechanism. A robust steel mast is securely anchored to the floor, providing stability and support. At the top of the mast, a horizontal boom extends outward, equipped with a hoist or lifting device.

When in operation, the jib crane rotates horizontally around the mast’s axis, allowing it to cover a designated area within its reach. This rotational movement enables precise positioning of the load, enhancing efficiency and reducing the need for manual labor.

The lifting mechanism of a pillar jib crane typically employs an electric chain hoist or wire rope hoist. The hoist, powered by an electric motor, raises and lowers the load along the length of the boom. The operator controls the lifting and lowering actions using a pendant control or a remote control system.

Maintenance Of Floor Mounted Jib Crane

Some essential maintenance tips for floor-mounted jib cranes:

• Lubrication: Adequate lubrication is vital for the smooth operation of a column-mounted jib crane. Regularly applying high-quality lubricants to the moving parts such as bearings, gears, and joints helps reduce friction, prevent wear and tear, and extend the crane’s lifespan. It is advisable to follow the manufacturer’s guidelines regarding lubrication frequency and the type of lubricant to use.
• Inspection and Testing: Inspect the crane’s structural components, including the boom, mast, and base, for any signs of damage or deformation. Check the electrical connections, control panels, and safety features to ensure they are functioning properly. Additionally, perform load tests to verify the crane’s load capacity and stability.
• Electrical System Maintenance: The electrical system of a floor-mounted jib crane demands particular attention. Regularly inspect the wiring, connectors, and switches for signs of damage or loose connections. Ensure that the power supply is stable and meets the required voltage and amperage specifications. If any electrical components show signs of malfunction, they should be repaired or replaced promptly by a qualified electrician.
• Safety Devices: Check the functionality of safety devices, including limit switches, emergency stop buttons, and overload protection systems. These devices are designed to prevent accidents and protect both operators and equipment. Regularly test and calibrate them to ensure proper operation.
• Structural Integrity: Over time, the structural components of a floor mounted jib crane may experience stress and fatigue. Inspect the crane’s weld joints, bolts, and fasteners to ensure they are secure and undamaged. Look for signs of cracks, deformations, or excessive wear. If any structural issues are detected, consult with a professional engineer or the crane manufacturer to determine the necessary repairs or replacements.

The floor-mounted jib crane is a versatile and essential piece of equipment in various industries. Its composition includes a sturdy base, a vertical mast, a rotating boom, and a hoist system that enables efficient lifting and maneuvering of heavy loads. To ensure its optimal performance and longevity, regular maintenance is crucial. This involves inspecting the crane for any signs of wear and tear, lubricating moving parts. Understanding the working principle of the floor-mounted jib crane, which involves the rotation of the boom and the controlled movement of the hoist, is essential for safe and effective operation. By following proper composition guidelines, carrying out routine maintenance, and adhering to safety protocols, organizations can maximize the productivity and lifespan of their floor-mounted jib crane.