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Bucket (machine part)
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A bucket (also called a scoop to qualify shallower designs of tools) is a specialized container attached to a machine, as compared to a bucket adapted to the form of a human being. It is a bulk material handling component.
The bucket has an inner volume as compared to other types of machine attachments like blades or shovels.
The bucket could be attached to the lifting hook of a crane, at the end of the arm of an excavating machine, to a the wires of a dragline excavator, to the arms of a power shovel or a tractor equipped with a backhoe loader or to a loader, or to a dredge.
The name "bucket" may have been coined from buckets used in water wheels, or used in water turbines or in similar-looking devices.
ets in mechanical engineering can have a distinct quality from the traditional bucket (pail) whose purpose is to contain things.
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Encyclopedia
A bucket (also called a scoop to qualify shallower designs of tools) is a specialized container attached to a machine, as compared to a bucket adapted to the form of a human being. It is a bulk material handling component.
The bucket has an inner volume as compared to other types of machine attachments like blades or shovels.
The bucket could be attached to the lifting hook of a crane, at the end of the arm of an excavating machine, to a the wires of a dragline excavator, to the arms of a power shovel or a tractor equipped with a backhoe loader or to a loader, or to a dredge.
The name "bucket" may have been coined from buckets used in water wheels, or used in water turbines or in similar-looking devices.
Purposes
Buckets in mechanical engineering can have a distinct quality from the traditional bucket (pail) whose purpose is to contain things. Larger versions of this type of bucket equip bucket trucks to contain human beings, buckets in water-hauling systems in mines or, for instance, in helicopter buckets to hold water to combat fires.
Two other types of mechanical buckets can be distinguished according to the final destination of the device they equip: energy-consumer systems like excavators or energy-capturer systems like water bucket wheels or turbines.
Size and shape
Buckets exist in a variety of sizes or shapes.
They can can be quite large like those equipping Hulett cranes, used to discharge ore out of cargo ships in harbours or very small such as those used by deep-sea exploration vehicles.
The shape of the bucket can vary from the truncated conical shape of an actual bucket to more more scoop-like or spoon-like shapes akin to water turbines. The cross section can be round or square.
Designs
Simple design
This is the same shape of a domestic form, the one-piece-standing single element, but often with an augmented size.
Helicopter bucket
An helicopter bucket allows to carry water above a fire site.
Concrete bucket
Concrete buckets help deliver concrete on a specific site of a building by the means of a tower crane. They have a bottom opening to allow concrete to flow out of the bucket when in-place.
Electrical trucks bucket
They are placed at the end of an excavator-like arm and have to be made from a material that provides isolation from electricity, like fiber glass, to help the workers protect themselves. There may be a door on the side of the bucket.
Excavator bucket
Excavator buckets are made of solid steel and generally present teeth protruding from the cutting edge, to disrupt hard material and avoid wear-and-tear of the bucket.
Clamshell bucket
The clamshell bucket is a more sophisticated articulated several-pieces device, including two elementary buckets associated on a hinged structure forming a claw-like appendage with an internal volume.
Buckets-wheel
In mining
The design is used in bucket-wheel excavators. The buckets in the wheel have to be made of solid material to withstand the resistance of the material it cuts through.
In water hoisting
In energy production
The bucket wheel design is also used to capture the water energy in water-wheels or water turbines like Pelton wheels. The buckets also have to be made of solid material to withstand the the force of the water flow. Their shape is optimized according to their purpose.
Other designs include vertical shaft wind turbines designs like on the Savonius wind turbine. In this case, the buckets have to be made of a light material.
Buckets-ladders (buckets-chains)
The buckets-ladders are used in bucket elevators or in the dredge design of some dredgers.
Other designs
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Images
Buckets manufacturers
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