How to choose a gantry crane
摘要：1. The selection of gantry crane It conforms to the relevant regulations of general gantry crane GB/T14406-1993 and GB5905-86. Under normal circumstances, the lifting weight is less than 50t, the span is less than 35m, and there is no special use requirement, the single main beam type should be selected. If the door leg width is large, the working speed is high, or heavy and long pieces are frequently lifted, the double-beam gantry crane should be selected. 2. Span and cantilever length The span of the gantry crane is an important factor affecting the quality of the crane itself
1. The selection of gantry crane
It complies with the relevant regulations of general gantry crane GB/T14406-1993 and GB5905-86.
Under normal circumstances, the lifting weight is less than 50t, the span is less than 35m, and there is no special use requirement, the single main beam type should be selected. If the door leg width is large, the working speed is high, or heavy and long pieces are frequently lifted, the double-beam gantry crane should be selected.
2. Span and cantilever length
The span of the gantry crane is an important factor affecting the quality of the crane itself. In the selection, the span should be minimized on the premise that the equipment use conditions and the span series standards are met.
Three, the principle of determining the wheelbase
(A) It can meet the stability requirements of the mast along the crane track;
(B) The external dimensions of the cargo should be able to pass smoothly through the flat steel frame of the outriggers;
(C) Pay attention to make the track B and the span S have a certain proportional relationship, generally take the track B=(1/4-1/6)S.
Four, gantry crane spacing size determination
During work, there should be a certain amount of space between the external dimensions of the gantry crane and the cargo and transportation vehicle channels in the yard to facilitate loading and unloading operations. Generally, when loading and unloading in the span, transportation vehicles should keep a distance of more than 0.7m from the door legs. The spreader should have a distance of more than 0.5m from the transport vehicle when it is not working, and should have a distance of more than 0.5m when the goods pass through the door legs.
It complies with the relevant regulations of general gantry crane GB/T14406-1993 and GB5905-86.
Under normal circumstances, the lifting weight is less than 50t, the span is less than 35m, and there is no special use requirement, the single main beam type should be selected. If the door leg width is large, the working speed is high, or heavy and long pieces are frequently lifted, the double-beam gantry crane should be selected.
2. Span and cantilever length
The span of the gantry crane is an important factor affecting the quality of the crane itself. In the selection, the span should be minimized on the premise that the equipment use conditions and the span series standards are met.
Three, the principle of determining the wheelbase
(A) It can meet the stability requirements of the mast along the crane track;
(B) The external dimensions of the cargo should be able to pass smoothly through the flat steel frame of the outriggers;
(C) Pay attention to make the track B and the span S have a certain proportional relationship, generally take the track B=(1/4-1/6)S.
Four, gantry crane spacing size determination
During work, there should be a certain amount of space between the external dimensions of the gantry crane and the cargo and transportation vehicle channels in the yard to facilitate loading and unloading operations. Generally, when loading and unloading in the span, transportation vehicles should keep a distance of more than 0.7m from the door legs. The spreader should have a distance of more than 0.5m from the transport vehicle when it is not working, and should have a distance of more than 0.5m when the goods pass through the door legs.
