Jib crane is characterized by unique structure, safety and reliability, high efficiency, energy saving, time saving and flexibility. It is especially suitable for use in short distance and intensive lifting places. It is widely used in workshops, warehouses, docks and other fixed places. The working level is generally below A5.
The cantilever of this kind of crane has a support arm, which can effectively improve the force condition of the cantilever and make the cantilever stiffness easier to control. At the same time, the support arm decomposes the force at the root of the cantilever, so that the bending moment at the head of the column caused by the suspended object and the cantilever self weight is dispersed, and the concentrated force at the head of the column is effectively reduced. The rotary drive device is installed at the end of the support arm, where there is always positive wheel pressure to ensure that the drive does not slip and the starting and braking positions are accurate.
The fixed shaft bearing structure is adopted for the connection between the column head and the cantilever to make the cantilever rotate smoothly without jamming. At the same time, the central collecting ring is used to conduct electricity, and the cantilever can rotate 360 °. The base flange is set at the bottom of the column, and the embedded flange is connected with the ground by bolts, which makes the connection between the crane and the ground stable and reliable, and is convenient for maintenance.
The cantilever beam is a flexible structure with I-steel structure, and its rigidity is controlled over 1 / 250. At the same time of ensuring the strength and rigidity, reduce the self weight as much as possible, and reduce the pressure of the whole machine on the ground.
The lifting mechanism is generally CD / MD electric hoist, which has the characteristics of compact structure and convenient maintenance. The lifting, operation and rotation actions are generally controlled by the ground operation handle, and the button points clearly for easy operation.
Structure composition: electric hoist, electrical device, main beam, arm, column, rotary device, fixed lower support, etc.
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