The wheel bucket reclaimer is gradually developed on the basis of the chain bucket reclaimer, single bucket reclaimer and other mining equipment. It is an ideal multi-bucket excavation equipment in continuous operation equipment.

Brief introduction of crawler bucket wheel reclaimer
The wheel bucket reclaimer 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 realize modern management, etc. It is especially suitable for high-efficiency mining operations in large open-pit mines. It is mainly used in open-pit mines to strip topsoil, excavate useful minerals, reverse pile operations, and load vehicles or transport belts, in addition, it has gradually been widely used in the mixing yard, storage yard, large-scale water conservancy and earthwork.

Working principle of bucket wheel reclaimer
When the wheel bucket reclaimer excavates materials, the machine does not walk. It mainly relies on the compound movement formed by the rotation of the bucket wheel at the front end and the rotation of the arm frame to continuously cut the materials and load them into the wheel bucket. When the bucket rotates to a certain height with the wheel bucket, the materials fall to the receiving conveyor belt due to gravity, and then are unloaded onto the unloading conveyor belt through the hopper, loaded into vehicles or conveyors and transported to the designated place. If the machine moves or the boom falls after one layer of material is excavated, the next layer of material is excavated, so that the material is excavated layer by layer from the top. The thickness of the excavated material is controlled by the forward distance of the machine or the telescopic amount of the boom. The width is determined by the rotation speed. Generally speaking, the height does not exceed 0.7 times of the diameter of the bucket wheel. The walking of the wheel bucket reclaimer is auxiliary, the operation is continuous, the bucket is only used for excavation, and the belt conveyor is used for material transportation.

Components of bucket-wheel reclaimer
The wheel bucket reclaimer is mainly composed of 6 parts: walking system, slewing system, working system, conveying system, electric drive system, and hydraulic system. Its main characteristics are:

Walking system: most wheel bucket reclaimers adopt crawler walking system, and a few adopt walking walking walking system. From the relevant data, most of the medium and small wheel bucket reclaimers use double tracks, while the large wheel bucket reclaimer uses multiple tracks (three tracks or four tracks), which can reduce the specific pressure of the equipment on the ground.
Rotary system: composed of a turntable and a rotary driving device. There are power devices, driving devices, control equipment and control rooms on the turntable. Due to the use of rotary support bearings, the driving device can make the turntable rotate 360 ° around the vertical axis.
Working system: consists of bucket wheel, arm frame, luffing mechanism and driving device. The bucket wheel is installed at the front end of the arm frame and is a rotating wheel that evenly distributes several buckets. The rear end of the boom is hinged on the gantry of the turntable, and the boom is rotated by a wire rope or a hydraulic cylinder, so that the bucket wheel can excavate on different working surfaces. There are two main boom lengths: fixed and retractable. The bucket wheel drive device is composed of a motor, a safety coupling and a reducer, and is arranged on the side of the front end of the arm frame to drive the bucket wheel to rotate.
Conveyor system: Conveyor belt, hopper and discharge conveyor, etc. In addition, the connecting bridge wheel bucket reclaimer is also equipped with a transfer conveyor belt on the connecting bridge.
Electric drive system: except that some small wheel bucket reclaimers adopt diesel generator set, other wheel bucket reclaimers all adopt external power converter unit.
Hydraulic system: mainly adopts hydraulic cylinder to drive bucket wheel arm and discharge arm lifting.