Abstract Road cutting slot machines as highways and urban roads conservation of special equipment, mainly used in highways, airports, terminals and cargo plants, car parks, workshops and so on the cutting asphalt concrete pavement repair, cutting the expansion joints, non-metallic components of the construction site cutting, For use in cable ditch pipeline construction before the break-cutting. Road cutting through the slot machines four linkage cutting depth can be adjusted by cutting card round, saw no guarantee that deviation, and ensure accurate cutting. Cutting the end of the shaft and nut adjustment, by adjusting the nut adjustable cutting width. Insert a metal cutting blade of Diamond caking material, long life. The road is cut by the slot machines operating system, the take-off and landing systems, cooling systems and other components. The design of the main road cutting slot machines on the overall programme design, the walking part of the structure and cutting drive, and other related design. The machine adopts the inflatable rubber pad tire-running wheels, driven by the electrical supply. Cutting through the transmission system can achieve reverse cutting three transmission; operating system through the realization of three transmission speed, and achieving positive and, Slow rapid cutting back. Cutting through the system and the operating system with different speeds to adapt to different circumstances require cutting. The design innovations: the use of space in the transmission sets of gears, spline shaft, friction within the film and the film composed of friction clutch drive system at any time to achieve separation and joint, walking in the system used in lazy round and triple sliding gear, And speed; cutting width of the specific regulation by the sleeve, in order to increase adhesion to install four wheels. The aircraft has a good dynamic performance, high efficiency and reliability. Key words: cutting; walk; three speed
