What do you mean by engineering ground leveling and ground leveling?
At present, most domestic and foreign flat machines adopt 6 * 4 * 2 wheel arrangement and articulated frame. The grader working on a slope, under lateral load, the steering wheel with the tilt mechanism on wheel tilt stability improve work when the grader; steering on the ground, can further reduce the turning radius, implementation of special site operations. (2) according to the blade length or the power of the engine according to the classification of blade length or engine power is different, can be divided into light and heavy, three, as shown in table 4-1. (3) according to the frame structure classification, according to the frame structure is different, can be divided into two types of integral and articulated. The overall frame has a larger overall stiffness, but a larger turning radius, the domestic PY160B grader used this kind of frame. Compared with integral frame, articulated frame has many advantages, such as small turning radius, large range of operation and good operation stability. It is widely used in modern grader. (4) classification according to the mode of operation, according to different modes of operation, can be divided into two kinds of mechanical control and hydraulic control. At present, the working device and walking device of the self-propelled grader adopts hydraulic control.
Grader is divided into two types: tow and self-propelled. The towed grader is driven by special vehicles: self-propelled grader, engine driven, driven and operated. The former is less used because of its poor mobility and low operation efficiency. (L) according to the number of wheels and tires, according to the number of wheels and tires, they can be divided into four wheels (two shafts) and six wheels (three shafts), of which six wheels are the majority of the two. The layout form of flat locomotive wheel is expressed by total wheel number * driving wheel number * steering wheel number, and driving wheel number is more. Work produced in tractive force is greater; the number of steering wheel, flat machine turning radius is small, generally have the following arrangement: 1 wheels) four wheel grader: 4x2x2 type: rear wheel drive, front wheel steering; type 4x4x4: all wheel drive, all wheel steering wheel; 2) six grader: type 6x4x2: rear wheel drive, front wheel steering; type 6x6x2: all wheel drive, front wheel steering; type 6x6x6: all wheel drive, all wheel steering.
The use and classification of grader and the operation mode of grader. First, grader is a kind of earthwork machine that mainly completes the leveling and shaping of large area soil. It is the main working device of shovel blade, and can be equipped with various auxiliary devices (Ripper, bulldozing plate, etc.) to complete the multi functional operation. In all kinds of engineering construction, operation device of flexible grader flat, high efficiency, high precision, so it has become a special mechanical flat plastic used for construction of national defense engineering, road construction, mining, water conservancy, farmland and other infrastructure construction projects. The main purpose of the grader is: roadbed and site leveling; trenching, repair section; repair brush slope; clear the snow on the road; Songshi; mixing, paving pavement materials etc.. Modern leveling machines can be equipped with automatic leveling system, using electronic control technology to improve operation accuracy and efficiency, and meet the requirements of modern construction.
