FIELD: transport.
SUBSTANCE: proposed crane comprises chassis with moving elements to engage with soil, rotary base coupled with chassis, boom fitted on rotary base front to turn thereabout and mast mounted by base front section and provided with second end, and, at least, one hydraulic cylinder articulated by its one end with rotary base. Hydraulic cylinder is arranged and shape to lift mast second end from, in fact, horizontal position into operating and crane assembly position. Support is articulated by its one end with rotary base and, by second end, with hydraulic cylinder. Support and hydraulic cylinder are jointed to make piston elongation and pulling inside hydraulic cylinder drive support second end up and down. Support and hydraulic cylinder support, at least, one element to engage with mast arranged so that lifting of support second end drives said element to push and lift the assembled mast.
EFFECT: increased capacity.
24 cl, 10 dwg
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Authors
Dates
2013-02-27—Published
2008-04-25—Filed