METHOD FOR MOUNTING PORTAL CRANE AND PORTAL CRANE MOUNTED ACCORDING TO SAID METHOD Russian patent published in 2014 - IPC B66C5/00 B66C19/00 

FIELD: transport.

SUBSTANCE: when portal crane is mounted pre-assembled span is lifted by means of strand jacks mounted on erection gantry, support pillars are attached to span beam, and assembled structure is installed on rail balance trucks with consequent fixation of support pillars. Lifting of span by means of strand jacks is performed into intermediate position, whereupon balance trucks connected in pairs by end beams are installed on rails under span. On the latter vertical guides are installed in which part of sections are placed of which sections support pillars are made. Span is lowered by strand jacks onto support pillar section ends protruding from guides. After this, mounting gantries are dismantled and step-by-step lifting of span is performed until design height is achieved. Portal crane includes span with at least one hoist trolley installed on it, balance trucks installed in pairs under ends of span and connected by end beams, and support pillars rigidly attached by one their ends to span beam. In the middle part on end beams, vertical guides are mounted having slewing pads for support pillars formed of vertical sections rigidly interconnected by detachable connections. To the span, upper sections of support pillars are attached, and in guides their lower sections are installed which are attached to slewing pads or guides.

EFFECT: reducing labour consumption, complexity and time spent for erection and dismantling of portal crane.

9 cl, 6 dwg