FIELD: mechanical engineering; load-handling facilities.
SUBSTANCE: proposed crane has mast 6 and distributing boom 7 consisting of series-connected members 14, 15, 16 hinge-connected along horizontal axles 24, 29, and installed on supports 1, 4. First boom member 14 is hinge-connected along horizontal axis 18 with top of mast 6. In case of necessity, first boom member 14 and following member 15 can be set in vertical position in one line with lifted mast 6 to increase height of mast. All members 14, 15, 16 of boom are provided with rolling surface 17 for load trolley 32, and they can be used in different position. Intermediate member of boom consists of two sections: rear small-length folding section, and front large-length section making it possible to use partially folded boom, front section of intermediate member of boom and head member of boom set in practically horizontal position being on one line on first member of boom.
EFFECT: enlarged zone of servicing.
9 cl, 9 dwg
