Uses and classification of small excavators

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Uses of small excavators Most small excavators are used to complete the following operations: ① Excavation of the foundation of buildings and factories; ② Excavation of soil and stripping of the covering layer of the mining site; ③ Loading operations in quarries, tunnels, underground factories and stockpiles; ④ Excavation of roads, canals and dredging of waterways; ⑤ After replacing the operating equipment, pouring, lifting, equipment, piling, tamping and other operations can be carried out.

Uses and classification of small excavators

Small excavators

Classification of common small excavators There are many ways to classify small excavators, and only 5 are introduced below. That is, according to the walking device method, according to the transmission method, according to the working device method, according to the driving method and according to the purpose.

Uses and classification of small excavators

① Classification by walking device method: There are two types: crawler type and tire type. Crawler type small excavators have a small ground pressure, a low center of gravity, good stability, and are the most widely used. Tire type small excavators have a fast walking speed and good maneuverability.

② Classification by transmission method: There are two types: mechanical and hydraulic. Mechanical single-bucket small excavators rely on mechanical transmission and require various gearboxes, winches, wire ropes, hooks, pulleys and other parts. The structure is complicated and has gradually been selected among small and medium-sized single-bucket small excavators. Hydraulic single-bucket small excavators eliminate many complicated mechanical central transmission parts, simplify the structure, improve transmission function, stable operation, flexible operation, and high productivity.

③ Classification by operating equipment method: There are backhoe, front shovel, grab shovel, drag shovel and other methods. When backhoeing, the excavation direction is toward the fuselage, which is used to excavate the soil below the parking surface. The operation is flexible and is used more. It is the primary operating equipment method in hydraulic small excavators.

④ Classification by driving method: There are two types of small excavators driven by internal combustion engines and small excavators driven by electricity. Electric small excavators are mainly used in plateau hypoxia, underground mines and other flammable and explosive places. ⑤ Classification by use: small excavators can be roughly divided into different categories such as general small excavators, small excavators for mining, small excavators for ships, and small excavators without tails.

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