There are two types of motor graders, towed and self-propelled. The towed motor grader is pulled by a tractor, and its gear device is manually operated; the self-propelled motor grader is equipped with an engine on its frame
Power is supplied to drive mechanical travel and various working devices for working. The former has poor mobility and laborious operation, so it was replaced by the latter a few days ago.
The main device of the motor grader is a scraper equipped with a blade, which has a high degree of flexibility and can form various angles different from the driving direction at any time according to the needs of the motor; it can form the necessary inclination angle on the vertical plane; also The 19J body can be crossed horizontally. These characteristics of the blade make the grader a special machine for shaping and leveling operations in the road.
The main purposes of the grader are: leveling the roadbed and site; trimming the cross-section and side slope of the roadbed; shooting the side ditch of the triangular or trapezoidal section; borrowing soil from both sides to fill the embankment no higher than 1m. In addition, motor graders can be used to mix pavement materials on subgrades and pave them, trim and maintain roads, clear weeds and clear snow.
There are many classification methods of white line graders. According to the different control methods, they can be divided into two types: mechanical control type and hydraulic control type; according to the wheel
Depending on the number of days, it can be divided into four-wheel type and six-wheel type; according to the different wheel drive conditions, it can be divided into two types: rear-wheel drive type and all-wheel drive type; according to the different wheel steering conditions, it can be divided into two types: There are two types of front wheel steering and all wheel steering; according to the engine power and the length of the scraper, it can be divided into three types: light, medium and heavy.
