Shipbuilding gantry crane is suitable for shipbuilding operation in shipyard (dock, slipway). It has many operation functions, such as single crane, double-point lifting, three-point lifting, aerial overturning, light load (≤ 50% full load) rapid lifting, low wind speed (≤ 8m / s) and other operation functions. In the overall hoisting of the crane, the main beam hoisting is a key link, with 800t gantry crane For example, the total weight of the main beam is 2680t, the upper and lower trolley and the maintenance crane are 324t, 155t and 45t respectively. Before the main beam is lifted, the upper and lower trolley and the maintenance crane are hoisted on the main beam in advance, and the upper and lower trolley is placed at the center of gravity of the main beam according to the overall lifting weight, so as to prevent excessive weight during hoisting. Therefore, the total weight of main girder is 3204t, and the total lifting weight of two towers is 4000t, which is within the safety factor of 1.25
Shipbuilding gantry crane working level A5, utilization grade U5, load state Q2, elevator load 0.4 T, span 96 m, 2 × 60 t hook, 0.2 ~ 5.5 m / min (variable frequency speed regulation) under full load.
It is suitable for shipbuilding operation in shipyard (dock and slipway). It has many operation functions, such as single crane, double-point lifting, three-point lifting, aerial overturning, quick lifting with light load (≤ 50% full load) and fast operation at low wind speed (≤ 8m / s).
The crane is a kind of large-scale crane, which can be used in large-span dock or large-scale dock crane.
Main technical features:
1. It has the functions of single crane, lifting crane, air overturning, horizontal micro rotation in the air, etc.
There are two types of main girder, i.e. single girder and double girder, which are suitable for users.
3. The rigid leg of portal frame has single column type for Yonghe.
4. The upper trolley is equipped with double main hooks, which are respectively placed under the center of the main beam.
5. The lower trolley is equipped with main and auxiliary hooks, which are placed under the center of the main beam.
6. The upper and lower trolleys can cross each other.
7. All lifting and operating mechanisms adopt frequency conversion speed regulation.
8. At the rigid outrigger side, the top surface of the main beam is equipped with a transfer maintenance crane to complete the maintenance of the upper and lower trolley.
9. In order to facilitate the driver and maintenance personnel to get on the plane, a boarding elevator is set in the rigid leg.
10. In order to prevent storm attack, it is equipped with safe and reliable wind proof devices such as rail clamp.