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L-type gantry crane
Composed of ground beams and outriggers, it forms an "L" -shaped structure. This structure enables the crane to have a certain degree of stability while also reducing material usage and lowering its self-weight. The portal frame usually adopts a box structure, which has good strength and rigidity.
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- Basic structure
Gantry structure: Composed of ground beams and outriggers, it forms an "L" -shaped structure. This structure enables the crane to have a certain degree of stability while also reducing material usage and lowering its self-weight. The portal frame usually adopts a box structure, which has good strength and rigidity.
Main beam: Generally, it is in the form of a single beam with an offset track. A trolley track is installed on the main beam for the operation of the trolley. The design of the main beam must not only meet the strength requirements to withstand the bending and shear forces when lifting heavy objects, but also take into account the stiffness requirements to reduce deformation under the action of loads
Trolley: Installed on the main beam, it can move laterally along the main beam track. The trolley is equipped with a lifting mechanism, including components such as an electric motor, reducer, drum, steel wire rope and hook, which is used to achieve the lifting operation of heavy objects.
Electrical system: It includes control cabinets, operation buttons, limit switches, overload protection devices, etc., which are used to control the operation of each mechanism of the crane to ensure the safe and reliable operation of the crane.
- Working principle
Lifting principle: The motor in the lifting mechanism drives the reducer. The reducer rotates the drum, and the drum winds or releases the steel wire rope, thereby causing the hook to rise or fall, achieving the lifting and lowering operation of the heavy object.
Lateral movement principle: The motor in the trolley traveling mechanism drives the wheels, causing the trolley to move laterally on the track of the main beam. Thus, the position adjustment of heavy objects in the span direction of the main beam can be achieved.
Longitudinal movement principle: The traveling mechanism of the large vehicle is installed at the bottom of the outriggers. Through the motor driving the wheels, the crane moves longitudinally along the ground tracks to achieve the position movement of the heavy object in the length direction of the working site.
- Performance characteristics
Compact structure: The L-shaped structure design makes the overall structure of the crane relatively simple, occupying less space, which is convenient for installation and use in places with limited space, and also reduces manufacturing and installation costs.
Large working space: It has a large clear height and span, allowing operations to be carried out within a large space range, which can meet the lifting requirements of different sites and goods.
Strong cross-crossing capacity: It can easily cross obstacles or other equipment, lifting goods from one area to another, which improves the flexibility and efficiency of operations.
Stable operation: Utilizing high-quality steel and advanced manufacturing techniques, the crane ensures excellent rigidity and stability, runs smoothly, has a low failure rate, and a long service life
High safety: Equipped with complete safety protection devices, such as overload protection, limit switches, windproof devices, etc., it can effectively prevent unexpected accidents during the operation of the crane and ensure the safety of operators and equipment.
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Main products: Luqiao District Portal Crane, bridge erector, European single beam, double beam crane, explosion-proof series cranes.
Henan Purton Crane Machinery Co. Ltd.
Address:South of Hongli Avenue, east of the southern section of Hongli Avenue, and north of Weishi Road, Nanpu District, Changyuan City, Henan Province
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