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The grader is the main machine used for shaping and leveling operations in earthworks.
2025-01-20
Widely used for large-scale ground leveling operations such as roads and airports. The reason why the grader has extensive auxiliary working capabilities is that its blade can perform six degrees of motion in space. They can operate individually or in combination. In subgrade construction, the grader can provide sufficient strength and stability for the subgrade. The main methods of the grader in subgrade construction include leveling operations, slope brushing operations, and embankment filling. The grader is a high-speed, efficient, high-precision, and multifunctional earth-moving machine. It can complete large-scale ground leveling and excavation, slope grading, bulldozing, snow removal, loosening, compaction, spreading, mixing, assisting loading, and land reclamation in important areas such as highways and farmland. It is an important piece of equipment in defense engineering, mining construction, road building, water conservancy construction, and farmland improvement. The highway subgrade is the foundation of the road and an important component of highway engineering. The subgrade bears the traffic loads transmitted from the road surface and is the supporting structure of the road surface. It must have sufficient strength, stability, and durability. Depending on the terrain, highway subgrades generally adopt two forms: embankments and cuttings.
The development and expansion of grader product varieties must meet the working adaptability to different working conditions while maintaining the maximum interchangeability (or commonality) of components with the basic model, which brings great convenience for users in terms of use and maintenance. The tracked grader mainly consists of the engine, transmission system, working device, electrical parts, cab, and hood. Among them, the mechanical and hydraulic transmission system includes the hydraulic torque converter, coupling assembly, planetary gear power-shifting transmission, central drive, steering clutch and steering brake, final drive, and walking system. The power output mechanism drives the working pump in the hydraulic system of the working device, the variable speed torque hydraulic system pump, and the steering pump in the steering brake hydraulic system through gear transmission and spline connection; the sprocket represents the final drive mechanism of the second-level spur gear transmission (including left and right final drive assemblies); the track plate includes the walking system, which consists of the track assembly, chassis frame, and suspension assembly.
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