A5 A/U Type 5-50T Double Girder Gantry Crane with Hook

Overview

Hook double girder gantry crane for open storage or railway along the general loading and unloading and lifting operations. The crane from the bridge, trolley operating agencies, cars, electrical equipment. Bridge using box-welded structure, trolley operating agencies were driven. All agencies are manipulated indoors. Crane conductive form is divided into two kinds of cables and trolley lines.

Windlass Lifting Heavy Duty Gantry Crane is a bridge set in two forms door frame in the shape door type bridge crane. This kind of crane make traveling in orbit on the ground, mainly used in outdoor storage yard, dock, station, port and railway station, handling and installation operations.
The components Hoisting mechanism, car running and bridge structure are same with bridge crane. Crane operation mechanism, because of the large span mostly adopts respectively drive way, in order to prevent the crane skewed operation and increase the resistance, or even an accident. Gantry crane's hoisting trolley frame running in bridge, some lifting trolley is a boom type crane. Leg on either side of the bridge are generally rigid leg; Spans more than 30 meters, is often a side for rigid leg, but on the other side through the ball joint and the bridge connecting the flexible leg, make the door frame statically determinate system, so that you can avoid outer load under the action of the additional stress due to the lateral thrust, also can compensate bridge longitudinal temperature deformation of the gantry crane large windage area, in order to prevent the slide under the action of strong wind overturned or, with a sonde and interlock with running institutions of crane rail device.On both ends of the bridge can be without the cantilever; Can also be end cantilever or ends are cantilever, by expanding the scope of the job. Semi gantry crane bridge side leg, the other end without a leg and run directly in the tower of the rack.

Gantry Crane Safe Operation Notice:

1. Hoisting heavy objects, the hook wire rope should be kept vertical, not inclined to drag the hanging objects.

2, Lifting should focus firmly, emergency storage of wooden pad is good.

3. The weight must not be hung on the ground, the crane shall not do rotational movement.

Fourth, the weight of rising or falling, the speed is stable, to avoid rapid changes in speed, resulting in heavy sway in the air, resulting in risk. Weight loss, speed should not be too fast, so as not to lose weight when landing.

4. Hoisting the crane should avoid lifting the boom. In the case of a jib lever, the lifting weight must not exceed 50% of the weight.

5. In the case of lifting crane rotation, pay close attention to the surrounding obstacles, if there are obstacles should be avoided or removed as much as possible.

6. Crane arm without staff, try to avoid the passage of personnel.

7. When two cranes work on the same track, the distance between two machines should be more than 3 meters.

8. Two cranes hoisting objects, the weight must not exceed 75% of the total lifting weight, two cranes alignment, sling movements should be consistent.

9. Hoisting, luffing rope inspection once a week, and in accordance with the relevant provisions of hoisting rope to make a record, the specific requirements.

10. Empty lines or shuttle left the ground more than 2 meters.

Wind should be stopped immediately when the wind power is greater than level 6. The TMK arm should be adjusted to lower the air volume and hook properly. The gantry crane must be wedged (check rails) and the hooks reach the ceiling. Doors and windows cut off the power at the same time, pull the cable rope. Usually after work should be.

12. Crane platform is prohibited pile of debris, to prevent the operation off, and frequently used tools should be placed inside the box dedicated tools for internal operation.

13. During operation, do not suddenly change or reverse the flow, so as to avoid swinging in the air. It is also not allowed to start two operating mechanisms (including auxiliary hooks) at the same time.

14, driving, the operator's hand not leave the controller, a sudden failure, should take measures to safely and safely cut off heavy, and then cut off the power for maintenance. Do not repair and maintain the operation.

15, cranes will have one of the fthe weight exceeds the rated capacity of the crane.