Hydraulic excavator with upgraded sorting bucket
The article analyzes the known designs of excavator buckets that have the functionality of sorting the rock mass simultaneously with the excavation and loading process. The design of a hydraulic excavator with a modernized sorting bucket equipped with a swivel bottom with hydraulic cylinders is proposed. The rotary bottom is used for temporary accumulation of fine fractions separated from the rock mass in the process of turning the bucket to the place of unloading. After positioning the excavator bucket over the body of the dump truck, the rotary bottom is opened and the sifted fine fractions are unloaded. Unloading of large fractions of the rock mass is carried out in the body of another dump truck. The rotary bottom can be installed on screening buckets of known designs without significant modernization. The introduction of this technical solution into mining will increase the productivity of equipment and reduce the cost of production.