Main structure and working principle The general milling machine is composed of engine, frame, milling rotor, milling depth adjustment device, hydraulic components, aggregate conveying device, steering system and brake system.
The milling rotor is the main working part of the milling machine. It is composed of the milling rotor shaft, tool holder and cutter head. It directly contacts the road surface and achieves the purpose of milling by working with its high-speed rotating milling cutter. The milling machine is equipped with an automatic leveling device, the milling rotor side cover is used as the milling reference surface, and two positioning hydraulic cylinders are controlled to keep the given milling depth constant; the hydraulic system is used to drive the milling rotor to rotate and the whole machine to walk , Auxiliary device work, etc., generally a closed hydraulic system with multiple pumps independent of each other, which does not interfere with each other and has high reliability; some milling machines install a tilt adjuster as needed to control the inclination of the rotor; generally Large-scale milling machines have a collection and conveying device composed of a conveyor belt and a collector. It can concentrate and convey the milled bulk materials to a randomly walking truck. The height of the conveyor arm can be adjusted and can swing left and right. Adjust the unloading position. When the specifications and models of the milling machine are different, the structure and layout are slightly different, but the basic working principle is the same or similar. The route of the power transmission of the milling machine: engine→hydraulic pump→hydraulic motor, hydraulic cylinder→working device.