ROLL WITH MOVABLE LUGS TO PREPARE BEDS FOR WINTER ROADS ON MARSHES Russian patent published in 2009 - IPC E01C19/26 

FIELD: transport.

SUBSTANCE: proposed roll wit movable lugs to prepare beds for winter roads on marshes incorporates frame (1), tools representing first drum (2) and second drum (3) with movable lugs fitted onto the said frame. Frame (1) supports also two heat generators (5) linked up with the first 2 and second 3 drums, electric power station (8) and hydraulic pump unit (10) with tank for hydraulic fluid (11). Drum (2) with movable lugs (4) is arranged first in the central part of frame (1) with the help of two swivel links fitted on the front supports (13) and two hydraulic cylinders (14) fastened on the upper beam (15) to revolve about horizontal axis of cam shaft (16) of the first drum (2). Drum (3) with movable lugs (4) is arranged second at the central part of frame (1) with the help of two swivel links (17) fitted on the rear supports (18) and two hydraulic cylinders (19) fitted on the upper beam (15) to revolve about horizontal axis of cam shaft (16) (fig. 3) of the second drum (3). First (2) and second (3) drums are covered by casings (20) with their inner spaces communicating with heat generators (5) via branch pipes (21) furnished with turbo compressors. The roll frame (1) rests upon the marsh road surface (22) by two front widened pneumatic low-pressure wheels (23) and two similar rear wheels (23). The first (2) and second (3) drums get additional drive allowing changing their relative position in turning with the help of chain gear (24) arranged between the aforesaid drums, (fig.3), chain gear (25) (fig.3). Second drum (3) gets additional drive from rear low-pressure wheels (23), (fig.1). Note also that the rear low-pressure wheels (23) receive additional driving force from hydraulic prime movers (26). The proposed roll is ganged up with the T-170 M1.01-type marsh caterpillar with the help of coupler (27). Two drums with movable lugs are mounted on the roll frame, the drums being hydraulically driven from rear wheels. The cam shafts with special-section cams and round lugs with sharpened tip of the working surface are used.

EFFECT: ruling out sticking of soil between lugs, forcing road surface material by lug tips out of road surface on their coming out of holes, accurate positioning of holes, higher quality of road bed leveling.

9 dwg