Prepare working machinery, soil shovel transport machinery, excavating machinery, leveling machinery, compaction machinery and hydraulic earth-moving machinery, etc.
Excavating machinery
Used to excavate materials above or below the bearing surface (including soil, coal, silt, and pre-loose rock and ore, etc.), and load them into transport vehicles or unload them to the stockyard, and divide them into There are two types of single-bucket excavators and multi-bucket excavators.
Shovel Transport Machinery
Earthmoving machinery
The materials used for shoveling, pushing or leveling the bearing surface mainly rely on traction to work. According to the purpose, they are divided into bulldozers, scrapers, loaders, graders and earthmoving machines. In addition, earth-moving machinery can be divided into two types, tire type and crawler type, according to the structure of the walking system. Earth-moving machinery is generally composed of power devices (mostly diesel engines), transmission devices, walking devices and working devices. Except for the multi-bucket excavator, which is a continuous operation, other earth-moving machinery is a periodic operation. The selection of earth-moving machinery in construction is mainly based on the object of operation, the requirements of the operation and the characteristics of the machine itself. In addition, the material transportation distance should also be considered when selecting shovel transportation machinery. For example, a bulldozer is suitable for a distance of 30-60 meters when pushing materials along the ground; a self-propelled scraper can load, transport and unload ground materials by itself, and is suitable for a long transportation distance of 180-2000 meters; a single bucket loader and a self-propelled The unloading truck is suitable for transportation distances of more than 300 meters, and the motor grader is suitable for leveling operations in large areas.
Leveling work machinery
Earth-moving machinery that uses scrapers to level the ground or repair roads. An automatic grader is commonly used.
Compaction machinery
Using the principle of static pressure, vibration or tamping, the foundation soil and road paving layer are compacted to increase the density. When the bulldozer advances, the earth-moving machinery with increased load-bearing capacity is divided into sheep-foot rollers, smooth wheel rollers, tire rollers, and vibratory rollers. , Frog rammer and internal combustion rammer, etc.
Hydraulic earthmoving machinery
Earth-moving machinery that uses high-speed water jets to impact the soil or rock mass for excavation and excavation. Then the mud (or magma) is transported to the earth-moving machinery at the designated location. Commonly used are water pumps, water guns, suction pumps, etc., which can comprehensively complete operations such as excavation, transportation, and filling, and use a knife-shaped or bucket-shaped working device to cut the soil. The efficiency is high, but the water and electricity consumption is large, and the application has limitations.
