FIELD: transport.
SUBSTANCE: invention relates to creation of self-propelled cranes. The crane includes during operation i) rotary base with rundle of additional lifting boom and corresponding rope, and derrick rigging drum and corresponding rope attached to the base, ii) boom hinged on the rotary base, iii) additional lifting boom hinged on the boom end, iv) the first brace also hinged on the boom end, and v) the second brace connected with boom under connection point of the first brace. During assembling, the first brace is articulated with the boom end, the first section of the second brace is articulated near boom apex, derrick rigging rope is attached to apex of the first section, the second section of the second brace is articulated to the first section so that the second section lays folded on the first section, and creation of the second folded brace, and the second section is lifted when derrick rigging is pulled in to align due to this the first and the second sections with each other.
EFFECT: effective and safe crane assembling.
19 cl, 15 dwg
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