A bucket wheel excavator [1] (also a bucket wheel excavator or
wheel bucket excavator) is a type of bucket excavator that uses
multiple buckets mounted on runners mounted on the front end of the
boom to dig continuously. It is used for the excavation of a large
number of earthworks, the stripping and mining of the mine and the
loading and unloading of large material yards, with high
productivity and large digging force, and can directly excavate
harder soils. In large-scale buildings, water conservancy projects
and mines, it is often matched with transportation equipment to
form a continuous operation line. Bucket wheel excavators are
classified into small, medium, large, extra-large and jumbo
according to productivity or weight. Large-scale bucket wheel
excavators have large digging force and are often used in mining.
Wheel bucket excavator is gradually developed on the basis of chain
bucket excavator, single bucket excavator and other mining
equipment, is an ideal multi-bucket excavation equipment in
continuous operation equipment, and is also one of the largest
complete sets of excavation equipment in the world. The wheel
bucket excavator is gradually developed on the basis of chain
bucket excavators, single bucket excavators and other mining
equipment, which is an ideal multi-bucket excavation equipment in
continuous operation equipment and one of the largest complete sets
of excavation equipment in the world [2]. Wheel bucket excavator
has many advantages such as continuous operation, large production
capacity, high efficiency, adaptation to complex coal seam
selection, large transportation slope, simple operation, convenient
maintenance, easy to achieve modern management, etc., especially
suitable for large-scale open-pit mine high-efficiency mining
operations, mainly used in open-pit mine to strip topsoil, excavate
useful minerals, pile up operations, load to vehicles or conveyor
belts, etc., in addition to the mixing yard, storage yard,
large-scale water conservancy and earthwork are gradually more and
more widely used. The wheel bucket excavator is mainly composed of
6 parts: walking system, slewing system, working system, conveying
system, electric drive system, and hydraulic system, and its main
features are [4]: (1) Walking system: Most wheel bucket excavators
adopt crawler walking system, and a few adopt walking walking
system. Judging from the relevant information, most of the medium
and small wheel bucket excavators use double tracks, while large
wheel bucket excavators use multiple tracks (three tracks or four
tracks), which can reduce the specific pressure of the equipment on
the ground. (2) Slewing system: composed of turntable and slewing
drive device, etc., there is a power unit, a driving device,
control equipment and a control room on the turntable, etc., due to
the use of slewing support bearing, the drive device can make the
turntable rotate 360 ° around the vertical axis. (3) Working
system: It is composed of bucket wheel, boom, luffing mechanism and
driving device. The bucket wheel is mounted at the front end of the
boom and is a rotating wheel that evenly distributes several
buckets. The rear end of the boom is hinged on the mast of the
turntable, and the boom is rotated by wire rope or hydraulic
cylinder, so that the bucket wheel can carry out excavation
operations on different working faces. There are two main types of
boom lengths: fixed and retractable. The bucket wheel drive device
consists of an electric motor, a safety coupling and a reducer,
etc., which are arranged on the side of the front end of the boom
and are used to drive the bucket wheel to rotate. (4) Conveying
system: It is composed of a receiving conveyor belt, a hopper and a
discharging conveyor belt. In addition, the connecting bridge wheel
bucket excavator is also equipped with a transfer conveyor belt on
the connecting bridge. (5) Electric drive system: Except for some
small wheel bucket excavators that use diesel generator sets, other
wheel bucket excavators use external power converter units. (6)
Hydraulic system: mainly use hydraulic cylinders to drive the
bucket wheel arm and discharge arm to lift. Cantilever bucket wheel
is the main product of Changchun power generation equipment, and
its market share has been in the forefront of the industry for many
years. Boom luffing type is the use of wire rope winch mechanism or
hydraulic cylinder to traction forearm luffing; The integral
luffing type is that the entire superstructure position is made
into one, and the superstructure luffing is realized by the
traction of the hydraulic cylinder; Ordering Requirements: Please
provide the following information and parameters when ordering: A.
Material characteristics, environmental conditions, system
parameters B. Stockpiling capacity, reclaiming capacity, stockpile
height C. Radius of rotation D. Gauge and wheelbase E. Forms and
requirements of bucket wheels, tape machines, slewing, luffing,
door seats, tail cars,
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