RECIRCULATION COMBINE ASPHALT ROAD COATING Russian patent published in 2014 - IPC E01C23/06 E01C23/09 

FIELD: construction.

SUBSTANCE: invention can be used for removal of all layers of asphalt coating, its processing into an asphalt mixture and laying into a new road bed, compaction of the road way base, repair of formed pits, removal of coverings of wells, installation of new coverings into an elevation with the level of future asphalt coating. Recirculation combine of the asphalt road coating includes an asphalt coating gatherer connected to the platform by means of a seat connection, which are installed on pneumatic rollers. The asphalt coating gatherer is made in the form of a sleigh wedge. On the upper plane of the gatherer there are triangular cut-outs in the front part. The upper part of the gatherer is made in the form of a blade that is changed over to a tunnel. The gatherer includes a heater of removed asphalt coating before a guillotine. The guillotine is suspended on steel ropes removed with a winch with a ratchet mechanism of a telpher on a monorail for removal of coverings of wells. Piston-rod blades directed into triangular cut-outs of the gatherer and installed onto supports are fixed on bell cranks of a crank shaft. Beaters are fixed on the shaft of a hammer crusher of asphalt scraps on plate-like springs. Beaters move along a curved plane at rotation of the shaft. Beaters transfer tension to the plate-like spring. The plate-like spring is bent at rolling on a rounded baffle with varying distance to the shaft for tension of springs for the purpose of an abrupt impact on asphalt scrap on the gatherer blade. Vibrating compacters of the road base, accumulators of asphalt scrap that is screened with meshes installed at the tunnel bottom are used for levelling of the base for the future asphalt coating. A conveyor performs loading and lifting of asphalt scrap into a remelting furnace. Melting and optimisation of asphalt mixture with addition of bitumen or a reducing agent is performed in the remelting furnace. The following is installed on the platform: an asphalt coating remelting furnace, a beam crane for installation of new coverings of wells at the level of the future road bed, a bitumen warm-up reservoir for optimisation of asphalt mixture, an unloading conveyor of excess asphalt mixture to the side, an asphalt mixture storage bunker, an asphalt laying machine, a slit-type fraction calibrator of the laid asphalt mixture with removal of coarse fractions, and an inclined tray for removal of a calibrated fraction. A motor for actuation of combine units is installed in the gatherer.

EFFECT: enlarging functional capabilities of a combine, simplifying the design, and improving convenience and reliability of operation.

2 dwg