METHOD OF LAYING OF LINKS OF RAIL-CROSS-TIE GRID AT CURVES AT AREAS CONTAINING AT LEAST TWO RAIL TRACKS AND CROSS-ARM OF LAYING CRANE Russian patent published in 2015 - IPC E01B29/02 

FIELD: construction.

SUBSTANCE: invention relates to methods and device for laying of the assembled rail links, and can be used to lay down links at curved areas of the railway. For links laying of rail-cross-tie grid at curve at areas containing at least two tracks the railroad laying crane lowers rear end of the link of the rail-cross-tie grid on the ballast, arranging the link in plan beyond the design chord, one trackway is connected with first adjoining trackway of the previously laid link. The installed on the cross-arm correcting hydraulic cylinder, secured by means the lock device on the railway of the adjacent track is used to move the laid link relatively to the adjacent track to such position, where it is possible to install between the adjacent railways of two tracks the template with clamps. The template is installed at the front end of the laid link, and then the link is lowered. The cross-arm of the laying crane contains metal frame with installed on it clamps and blocks, also has correcting hydraulic cylinder with lock device and pump station 5. The lock device is made as stop or chain clamp.

EFFECT: expansion of functional possibilities of the cross-arm of the laying crane without significant complication of its design.

3 cl, 24 dwg