Gantry crane used:
First, the gantry crane selection
It is consistent with the relevant provisions of General Purpose Gantry GB / T14406-1993 and GB5905-86 of.
Under normal circumstances, from the weight of 50t or less in the span of less than 35m, no special requirements, should choose a single main beam. If you require a large gate leg width, high operating speed, or frequent lifting heavy items, grew up in pieces, then should choose double girder gantry crane.
Second, the span and the boom length
Gantry crane span is an important factor affecting the quality of our own. Selection, to meet the conditions of use and equipment Subject to span series of standards, should be minimized span.
Third, determine the principles Tread
(A) To meet the requirements of stability along the gantry crane track direction;
(B) Goods dimensions to be able to pass the legs flat steel;
(C) Attention span so tread B and S proportional relationship, and generally Wheelbase B = (1 / 4-1 / 6) S.
Fourth, the gantry crane pitch size determination
At work, it should be left between the external dimensions of gantry cranes and yard goods and transport vehicles passage certain spatial dimensions, in order to facilitate loading and unloading operations. When the general transport vehicle loading and unloading in the span, and doors should be kept above the legs have 0.7m spacing. Spreader should not work more than 0.5m spacing and transport vehicles, cargo when the legs get married, there should be more than 0.5m spacing.
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