Dry grooving apparatus using a compressed air

Abstract

Disclosed is a dry grooving apparatus using compressed air. The dry grooving apparatus includes a blower box arranged over an engine room, an air supply unit adapted to supply air to a cutting saw, the air supply unit including an air compressor arranged over the engine room and adapted to generate compressed air, and a first air line connected at one end thereof to the air compressor and adapted to feed the compressed air from the air compressor, the air line being opened at the other end thereof to the cutting saw via air injection ports so as to cool the cutting saw, and a dust collecting unit adapted to collect dust discharged during the operation of the cutting saw. The dust collecting unit is integral with the air supply unit and includes a cyclone unit adapted to separate dust from air, and a dust discharge line opened at one end thereof to the cutting saw and connected at the other end thereof to the cyclone unit so as to discharge dust along with the compressed air reaching the cutting saw in accordance with the pressure of the compressed air, and a dust collecting box adapted to receive dust separated by the cyclone unit. The dust collecting box has, at a lower portion thereof, a dust discharge port adapted to discharge the separated dust into a dust collecting bag connectable to the dust discharge port.

What is claimed is:  
     
         1 . A dry grooving apparatus using compressed air comprising a support member, and a driver seat, a steering wheel, a cutting saw, a saw protecting member and drive wheels arranged above or beneath the support member, the cutting saw being connected to an engine via a drive belt and serving to form safety grooves at a road surface, further comprising: 
 a blower box arranged over an engine room installed on the support member;    an air supply unit adapted to supply air to the cutting saw, the air supply unit including an air compressor arranged over the engine room and adapted to generate compressed air, and a first air line connected at one end thereof to the air compressor and adapted to feed the compressed air from the air compressor, the first air line being opened at the other end thereof to the cutting saw via air injection ports so as to cool the cutting saw during an operation of the cutting saw;    a dust collecting unit adapted to collect dust discharged during the operation of the cutting saw, the dust collecting unit being integral with the air supply unit and including a cyclone unit arranged near the engine room and adapted to separate dust from air, and a dust discharge line opened at one end thereof to the cutting saw and connected at the other end thereof to the cyclone unit so as to discharge dust, generated during the operation of the cutting saw, along with the compressed air reaching the cutting saw in accordance with the pressure of the compressed air, and a dust collecting box arranged beneath the cyclone unit and adapted to receive dust separated by the cyclone unit, the dust collecting box having, at a lower portion thereof, a dust discharge port adapted to discharge the separated dust into a dust collecting bag connectable to the dust discharge port;    a second air line connected at one end thereof to a top portion of the cyclone unit; and    a filter type dust collector connected to the other end of the second air line.