Introduction of the grader
Release time:
2021-05-13 11:23
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graderIt is the main machinery used for shaping and leveling operations in earthworks, and is widely used in large-scale ground leveling operations such as highways and airports. The reason why the grader has a wide range of auxiliary operation capabilities is that its scraper can complete 6 degrees of movement in space. It can be done separately or jointly. The grader can provide sufficient strength and stability for subgrade construction. Its main methods in subgrade construction include leveling, slope brushing and filling.
The grader is a high-speed, high-precision, multi-functional earth-moving machinery. It can complete the work of leveling, trenching, slope scraping, bulldozing, snow removal, loosening, compaction, cloth, mixing, loading assistance, land reclamation, etc. in large areas such as important highway fields and farmland. The grader is an important equipment in national defense engineering, mine construction, road construction, water conservancy construction and farmland transformation. The highway subgrade is the foundation of the pavement and an important part of the highway engineering. The subgrade bears the traffic load of the pavement and is the supporting structure of the pavement. It must have sufficient strength, stability and durability. According to the different terrain, the highway subgrade generally adopts embankment and cutting.
Among the various pumps and valve components used in the motor grader, the matching clearance and working surface between the relative moving parts are small, and there are many damping holes and slit control valves in the hydraulic components. If dirt is mixed into the oil, it will block, even scratch the mating surface, increase leakage, and even block the valve core, resulting in failure of component action. Therefore, keeping the oil clean is the key to hydraulic system maintenance. Among them, the method of using the system outer loop is more operable. The method is to drain the waste oil in the oil tank and radiator first, and then add new oil. Remove the oil return pipe into the oil tank and start the engine to make the waste oil flow out of the oil return pipe completely.
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