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Functions of Excavation Main PartsTags: used caterpillar excavators for sale buy excavator2013-11-20
In the development of the main sectors of the national economy, earth work occupies a very important position. Earth work refers to a process of construction, including soil mining, transportation and accumulation to a designated place, sometimes also need to be smooth and compaction. Earth work is designed to build geotechnical buildings, or other materials caused by the engineering buildings for basic, or dig out useless soil, preparing for the exploitation of minerals, and canals, ditches, pipes etc. Earth work is industrial construction, the dynamic construction. Transportation construction, an important part of, the municipal construction and mining project in irrigation, drainage and canal project, there are a large number of earth work.
Used excavator is also called old second-hand construction machinery engineering machinery, engineering machinery or used excavator, but still can be used in mechanical engineering. Second-hand construction machinery field, present situation briefly summarized as: the level of product market uneven, some good and some bad, lack of norms, the harm of construction machinery market. Regardless of the media or the industry appeal, although the heat as one falls, but the second-hand construction machinery, the circulation tax, quality assessment standard is difficult to second-hand construction machinery field ".Present situation briefly summarized as: the level of product market uneven, some good and some bad, lack of norms, the harm of construction machinery market. Regardless of the media or the industry appeal, although the heat as one falls, but the second-hand construction machinery, the circulation tax, quality assessment standard is difficult to second-hand construction machinery field ".
Excavator is mainly used in engineering construction. Such as: highway, bridges, buildings, ponds, underground engineering, the rescue excavation etc... The main characteristics of the excavator is strength, high efficiency, can finish the human cannot be completed project, improve work efficiency. The general engineering team, the construction industry, the emergency services, and even private need excavator. Mining is the mining machinery is higher or lower than the machine for the surface of materials with a bucket of earth moving machinery, transport and loading or unloading of vehicles to the yard. Excavated material is mainly coal, soil, sediment and pre loose rocks and ores. Stripping and mining amount of earthwork, about 60% in general engineering open pit mine 80% is completed with mining machinery. Mining machinery is divided into single bucket excavator and bucket excavator two, single bucket excavator operation is periodic, excavator operations is the continuity of the.
A power device is diesel engine, motor, diesel generator or external power converter unit. Diesel engine and motor are used in mining machinery, small, driven by a prime mover, both interchangeable. Diesel generator set and power converter unit used for big, medium-sized mining machinery, motor driven by a plurality of dispersion.
Walking device is mainly used to support the machine, the machine transformation work position and transfer the working site; in addition, the bucket chain bucket excavator and wheel excavators, along with the continuous walking device and cutting soil. Walking device of a crawler, tire, walking, rail, floating and Trailer etc...
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