A general road milling machine is an equipment for asphalt pavement maintenance and construction, mainly used to remove surface defects such as bumps, oil waves, mesh patterns, and ruts on asphalt concrete surfaces of roads and urban roads. One of the economical and modern maintenance methods is to flatten the damaged old road surface and then lay a new one.

由于其设备工作效率高，施工工艺简单，铣削深度易控制，冷再生租赁之后操作方便灵活，操作性好，碾磨旧材料直接回收，在城市市政道路和高速公路养护工程中得到广泛应用。

Due to its high equipment efficiency, simple construction process, easy control of milling depth, convenient and flexible operation after cold recycling lease, good operability, and direct recycling of ground old materials, it has been widely used in urban municipal roads and highway maintenance projects.

根据铣削的形式，区分成冷铣式和热铣式。冷铣型具有功率大、刀具磨损快、切削材料粒径均匀等特点。它可以配备洒水装置来喷水，应用广泛。产品已成为一个系列，由于增加了加热装置，热铣型更为复杂，通常用于道路再生。

According to the form of milling, it can be divided into cold milling and hot milling. The cold milling type has the characteristics of high power, fast tool wear, and uniform cutting material particle size. It can be equipped with a sprinkler to spray water, and is widely used. The product has become a series, and due to the addition of heating devices, the hot milling type is more complex, usually used for road regeneration.

依照铣转子的旋转方位，划分为顺铣式还有逆铣式。在铣床运行时，转子的旋转方向与砂轮的旋转方向相同，为正铣型，反之为反铣型。

According to the rotation direction of the milling rotor, it can be divided into forward milling and reverse milling. When the milling machine is running, the rotation direction of the rotor is the same as that of the grinding wheel, which is a forward milling type, and vice versa.

根据铣转子的位置，划分成后悬挂式、中间悬挂式和后桥同轴式。后悬架类型是铣削转子悬挂在后桥后部;中间悬挂类型是铣削转子在前后轴之间;后桥同轴类型是铣削转子与后桥同轴布置。

According to the position of the milling rotor, it is divided into rear suspension type, middle suspension type, and rear axle coaxial type. The rear suspension type is a milled rotor suspended at the rear of the rear axle; The intermediate suspension type is milling the rotor between the front and rear axles; The coaxial type of rear axle is the coaxial arrangement of milling rotor and rear axle.

根据铣转子的工作宽度，可分为小、中、大三种类型。小型铣刨机的铣刨宽度为300-800mm，铣刨转子的驱动操作以机械为主，特别适用于占地面积小于100m2的地面加工;中型铣床的铣刨宽度为1000-2000mm，铣刨转子的驱动操作以液压为主大型铣床的铣削宽度大于2000mm，一般与其它机床配合使用，用于石膏的仿形，铣床的传动方式以液压传动为主。

According to the working width of the milling rotor, it can be divided into three types: small, medium, and large. The milling width of a small milling machine is 300-800mm, and the driving operation of the milling rotor is mainly mechanical, especially suitable for ground processing with an area less than 100m2; The milling width of a medium-sized milling machine is 1000-2000mm, and the driving operation of the milling rotor is mainly hydraulic. The milling width of a large milling machine is greater than 2000mm, and is generally used in conjunction with other machine tools for gypsum profiling. The transmission mode of the milling machine is mainly hydraulic transmission.

还有依据传动方式又能分为机械式和液压式。铣刨机租赁公司的工程说到：机械工作可靠，维修方便，传动效率高，制造成本低，但结构复杂，操作不轻，运行效率低，牵引力小，适用于浅路堑的小型路面维修工作;液压式结构紧凑，轻便、柔性、牵引力大，但制造成本高，维修困难，适用于中、大型路堑和路面的深度养护。

According to the transmission mode, it can also be divided into mechanical and hydraulic types. The engineering of the milling machine leasing company states that the mechanical work is reliable, maintenance is convenient, transmission efficiency is high, manufacturing cost is low, but the structure is complex, the operation is not light, the operating efficiency is low, and the traction force is small, suitable for small road surface maintenance work in shallow cutting; The hydraulic structure is compact, lightweight, flexible, and has a large traction force, but it has high manufacturing costs and is difficult to maintain. It is suitable for deep maintenance of medium and large road cuts and pavements.

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