The general tonnage range is 5-160T, and the working class is A5 or A6. The main beam adopts the double beam off-track form. Beam. Gantry cranes have the characteristics of high site utilization, large operating range, wide adaptability and strong versatility, and are widely used in port freight yards.
The crane designed this time is also called A-type gantry crane because the outrigger shape is similar to the letter A. The device is mainly composed of double main beams, two rigid outriggers, two flexible outriggers, saddles, upper and lower beams and other structures. The double-beam A-type gantry crane is generally made into a box structure and is often made into a double cantilever bridge. It adopts a closed driver’s cab, with adjustable seats, insulating mats on the bottom plate, and tempered glass for window glass, which can be equipped with heating and cooling air conditioners, buzzers, walkie-talkies and other items according to user requirements. There are two forms of power supply: cable reel and high-altitude sliding line.
Double-beam hook gantry cranes are suitable for loading and unloading in open-air warehouses, stockyards, railway freight stations, ports and wharves. It can also be equipped with a variety of special hooks for a variety of special operations.
The normal operating environment of this system crane should be within the range of -25℃～+40℃, and the average temperature within 24 hours should not exceed ten 35℃. The altitude of other installation and use locations should not exceed 2000 meters, and the motor capacity should be checked if it exceeds 1000 meters.
Parameter range:
Tonnage: 5-160t
Working level: A5/A6
1. Structure
The electric double-beam gantry crane is composed of a trolley operating mechanism, lower beam, outrigger, driver’s cab, main beam, trolley operating mechanism, lifting mechanism, escalator, electrical appliances, and other components.
1. Trolley operating mechanism
It is mainly composed of a lower beam and a trolley. The trolley is composed of a driving wheel group and a driven wheel group. The running mechanism includes components such as a motor, a reducer, a gear, and a wheel group.
2. Outrigger
The section steel is used as the material, and then welded into a cage structure, the lower end is connected with the lower crossbeam, and the upper end is connected with the main beam bolts through a flange.
3. Driver’s cab
The frame is made of section steel, and the outer shell is welded on the frame with thin steel plates. The cab is closed with a broken line. The electrical appliances, power distribution cabinets and lines of the operating mechanism are generally located in the cab.
4. Main beam
Shaped steel and steel plates are welded together, usually welded into a triangle shape, and on the main beam, there are also trolley running rails.
5. Trolley operating mechanism
The main components are similar to the running mechanism of the trolley. The electric motor is driven by the reducer, and the small gear on the reducer is transmitted to the large gear so that the trolley can travel back and forth.
6. Lifting mechanism
It is installed on the trolley frame and realizes the lifting movement through the hoist and the matching fixed pulley, movable pulley or hook.
Features
1. The double main beam gantry crane has a strong carrying capacity, large span, and good overall stability
2. The use of steel plates welded into a box structure has the characteristics of high safety and high rigidity.
3. Standardization, serialization, and generalization of parts and components.
4. The box-shaped double beam welding structure is adopted to increase the working space and facilitate transportation, installation, and maintenance.
5. The driver’s cab has a wide field of vision, with a linkage console inside, which is flexible, stable and comfortable to operate. Fans, heaters, air coolers, air conditioners, walkie-talkies, etc. can also be added according to user requirements.
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