An excavator auger drill is a new - type and high - efficiency hole - forming construction machine attached to the front of an excavator. It can also be used for screw piling by replacing the screw rod under the power head with a screw pile. The following is a detailed introduction:
- Composition: Generally, it is composed of three parts: a bracket, a power head, and a drill rod.
- Working Principle: It uses the hydraulic system of the excavator to provide power. The hydraulic system of the excavator supplies high - pressure fluid, which is transmitted to the auger rod through the connector. The power of the hydraulic system drives the auger rod to rotate and provides the required torque at the same time. The spiral - shaped drill bit cuts through the soil or rock, and lifts the excavated material to the ground along the spiral blade, or pushes it into the hole.
- Features
- Easy to Install and Operate: It is easy to install, convenient to carry, and simple to operate. It is suitable for being installed on large, medium and small - sized wheeled and chain - type excavators, as well as loaders.
- High Construction Efficiency: It adopts a hydraulic - driven working mode. It can realize single - person operation, and the drill can be moved as soon as it is completed, which greatly improves the working efficiency. Drilling does not require soil removal. After reaching the specified depth, the drill rod can be lifted by the boom, and the soil is attached to the spiral blade with little back - fall.
- Strong Adaptability to Strata: It is suitable for filling layers, clay layers, silt layers, silt layers, sand layers, and some strata containing pebbles and crushed stones that cannot be drilled by short - spiral drills.
- Large Operating Radius: The small arm of the excavator does not need to be removed, and its operating radius can be at least 2 - 3 meters longer than that of the excavator after modification. It can realize flat - hole drilling, elevation - angle drilling, and vertical - hole drilling.
- Application Scenarios: It is widely used in various projects such as power, telecommunications, municipal, high - speed rail, highway, construction, petroleum, forestry, and photovoltaic, and is an ideal foundation construction equipment. For example, it is used for the foundation support piles of high - speed rail catenary, slope - protection piles, the foundation support piles of solar photovoltaic power plants, and the construction of rural housing renovation projects.
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