First, the selection of gantry cranes
Conforms to the relevant regulations for universal gantry cranes.
Semi gantry crane manufacturers generally speaking, the lifting capacity is less than 50t, and the span is within 35m. There is no special requirement for use, and single-beam type should be used. If it is required that the width of the door legs is large, the working speed is high, or heavy items or long and large pieces are often hoisted, double-girder gantry cranes should be selected.
Second, span and cantilever length
The span of a gantry crane is an important factor that affects the quality of the crane itself. In the selection, half-gate gantry crane manufacturers should reduce the span as far as possible under the premise of satisfying the conditions of equipment use and meeting the span series standards.
Third, the principle of wheel alignment
(1) It can meet the stability requirements of the gantry in the direction of the crane track;
(2) The dimensions of the cargo must be able to pass through the leg flat steel frame smoothly;
(3) Note that the distance between the track B and the span S is proportional to the distance B. Generally, the track distance is B = (1/4 - 1/6)S.
Fourth, the size of the gantry crane spacing
In the work, between the external dimensions of the gantry crane and the cargo of the yard and the passage of the transport vehicle, the semi gantry crane manufacturer recommends leaving a certain space size for the convenience of loading and unloading operations. When a typical transport vehicle is loaded or unloaded within a span, it should be kept at a distance of more than 0.7m from the door legs. When the spreader is not working, it should have a spacing of 0.5m or more with the transport vehicle, and when the goods pass the door legs, there should be a spacing of 0.5m or more.
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