The bucket wheel turning device is installed at the end of the front boom frame. For easy stacking and unloading, the bucket wheel is 10° in the vertical plane during installation. It consists of 9 buckets, bucket wheel body, skid plate, support bearing (3003156), bucket wheel shaft, ZHP5.31-K cylindrical planetary reducer, YOXA500 fluid coupling, motor and bearing seat and motor support, bucket wheel shaft lubrication System and other components. ZHP5.34-K reducer consists of a reducer with a combination of a bevel gear and an epicyclic gearbox. The total transmission ratio is i=217.28. BPEnercynSG-XP22D gear oil is added to the box, and it is added to the top of the oil standard at about 65 to 70L. Low viscosity in winter; high viscosity gear oil in summer. The output shaft of the reducer is a hollow shaft that is hung on the bucket wheel shaft through the locking disc sleeve. The motor support is hinged on the front arm frame through the torque bar. The structure type of the bucket wheel is unformatted. This ensures that the bucket wheel body has good strength, and it can make the unloading block and return material less, which is more powerful than the format bucket wheel. The correct installation of the slide plate and its reasonable fit with the bucket wheel body is an important measure to reduce the leaking material. The gap between the fixed circular block plate and the rotating bucket wheel body should be adjusted to the entry point. 3mm, 5mm away, should not be too large, otherwise easy to folder failure. The connection of the bucket wheel shaft to the reducer or the bucket wheel body is respectively connected by a locking disk with a conical sleeve and an expansion sleeve.