How long does it usually take to learn excavators in Lanzhou, Gansu? How long will it take?

The semester of studying excavators lasts for one and a half months. Until the society, students will not be re-educated for free this semester to ensure that all students become talents. Lanzhou Excavator Training School in Gansu Province is a full-time comprehensive technical school approved by Gansu Provincial Department of Human Resources and Social Security and Gansu Provincial Department of Education. With the strong concern and support of the leaders of the Department of Human Resources and Social Security and the Education Department of Gansu Province, Shaanxi Poverty Alleviation Training Group and Lanzhou National Vocational and Technical School joined forces to establish Gansu Poverty Alleviation Technical School in order to support the urgent requirements of the western development and national economic construction for skilled workers. The school has set up a department of junior college education and a department of secondary school education. Carry out multi-level and high-starting mechanic education and training. It satisfies the strong desire of aspiring young people with different academic qualifications, different ages, different family environments and different social experiences to learn a skill, find a job and do a career. Common excavator structures include power device, working device, slewing mechanism, control mechanism, transmission mechanism, walking mechanism and auxiliary facilities. From the appearance, the excavator consists of three parts: working device, upper turntable and walking mechanism. According to its structure and use, it can be divided into crawler type, tire type, walking type, full hydraulic type, semi-hydraulic type, full rotary type, non-full rotary type, universal type, special type, articulated type and telescopic arm type. The working device is a device that directly completes the excavation task. It consists of boom, bucket and bucket. The lifting and lowering of the boom, the extension of the boom and the rotation of the bucket are all controlled by reciprocating double-acting hydraulic cylinders. In order to meet the needs of different construction operations, excavators can be equipped with a variety of working devices, such as digging, lifting, loading, leveling, clamping, bulldozing, impact hammer and other working tools. The rotary walking device is the body of the hydraulic excavator, and the upper part of the turntable is provided with a power device and a transmission system. Engine is the power source of excavator, so diesel oil can be used in convenient places, or motor can be used instead. The transmission mechanism transmits the power of the engine to the hydraulic motor, hydraulic cylinder and other executive elements through the hydraulic pump, and pushes the working device to move, thus completing various operations.