עקרון העבודה של מנוף זרוע צמוד קיר

מָבוֹא
A wall-mounted jib crane is a versatile and efficient material handling device widely used in workshops, warehouses, and production lines. It is designed to maximize space utilization by being mounted on an existing wall or column, eliminating the need for a floor-mounted base. Understanding its working principle is essential for optimizing its use and ensuring safe operation.
Basic Components
A wall-mounted jib crane consists of several key components:
1.Wall Bracket: The main support structure that attaches the crane to the wall or column, ensuring stability and load-bearing capacity.
2.Jib Arm: The horizontal beam that extends from the wall bracket, providing the reach needed to lift and move loads within a specific radius.
3.Trolley and Hoist: The trolley travels along the jib arm, carrying the hoist, which raises and lowers the load. The hoist can be electric or manual, depending on the application.
4.Rotation Mechanism: Allows the jib arm to pivot around the wall bracket, typically up to 200 degrees, providing a wide range of motion.

Working Principle
The operation of a wall-mounted jib crane involves coordinated movements of its components to lift, move, and position loads efficiently. Here’s how it works:
1.Lifting: The hoist, mounted on the trolley, raises the load. The operator controls the hoist using a pendant, remote control, or manual lever, depending on the hoist type. The hoist’s motor, drum, and wire rope or chain work together to lift the load vertically.
2.Horizontal Movement: The trolley moves along the jib arm, allowing the load to be positioned anywhere along the arm’s length. This horizontal movement is essential for precise placement of the load and efficient material handling.
3.Rotation: The jib arm rotates around the wall bracket, providing a broad working area. The degree of rotation depends on the crane’s design and installation environment. This pivoting action enables the crane to cover a wide area without needing additional floor space.
4.Lowering: Once the load is in the desired position, the hoist lowers it to the ground or onto a surface. The operator carefully controls the descent to ensure precise placement and safety.
סיכום
Wall-mounted jib cranes are highly efficient and space-saving solutions for material handling tasks. By understanding their working principle—encompassing lifting, horizontal movement, and rotation—operators can maximize their utility while maintaining safety and efficiency in their operations.