Mineral sizers are the main equipment for crushing bulk materials in coal or metal mines. They are mainly used for medium and fine crushing of ores. Mineral sizers reduce the size of the material by cutting and squeezing it through the interaction of the crushing teeth on a pair of tooth rollers. At present, mineral sizers tooth roller mainly has two structural forms, including tooth ring tooth roller and tooth ring tooth cap tooth roller; among them, the tooth ring of the tooth ring roll adopts a plurality of accessories to connect and coordinate as a whole structure. Because several accessories are processed separately, the processing and manufacturing of the tooth ring roll is more convenient. However, because the tooth ring of the tooth ring roll is composed of more accessories, when the tooth ring roll is excessively worn or broken teeth during use, the disassembly and replacement are more complicated. The gear roller needs to be removed from the equipment to replace the gear ring, which is costly and takes a long time to replace: gear ring gear cap gear roll includes gear roller, gear ring and gear cap, and the gear cap is set on the tooth root of the gear ring to form a crushing tooth. Due to the complicated coordination and structure of the gear ring and gear cap, the processing and manufacturing of the gear ring gear cap gear roll is more difficult, and the gear ring gear cap gear roll is prone to foreign matter entering the gear ring during use, resulting in broken teeth.
To solve the above technical problems, we design a mineral sizers split toothed roller. Mineral sizers of split toothed rollers. The split type tooth roller comprises: tooth ring and tooth roller shaft: the tooth ring comprises a ring base and a crushing tooth uniformly distributed on the ring base, the ring base and the crushing tooth are integrated, the tooth ring is a split structure, the tooth ring comprises a plurality of the tooth rings, the plurality of the tooth rings are set on the tooth roll and evenly distributed along the tooth roll axial split tooth roller, the tooth ring adopts a split structure of two half tooth rings suitable for connection, and the two half tooth rings are arranged with bolt through holes along the string length direction, and the two half tooth rings are suitable for the bolt through holes, and the two half tooth rings are fixed and connected to the whole ring through the bolt through holes and bolts and nuts. In the split tooth roller of mineral sizers, both ends of the ring base of the half tooth ring are respectively provided with two bolt through holes, the two bolt through holes on the same side end face of the half tooth ring are symmetrical with each other, and the two bolt through holes on the end face of the half tooth ring are symmetrical with the two bolt through holes on the other end face. In mineral sizers split tooth roller, the tooth ring is fitted to the tooth roller by means of a double key connection. In the mineral sizers split tooth roller, each of the two half tooth rings is provided with a keyway, the two key ways are symmetrical to each other, and the tooth roller is provided with a keyway and a key suitable for the key way of the half tooth ring.
In mineral sizers split tooth rolls, a plurality of tooth rings mounted on the tooth rolls adopt a helical tooth structure, and the plurality of tooth rings are helically distributed along the axis of the tooth rolls at a set angle difference. In the split tooth roll of mineral sizers, the tooth roll shaft is uniformly arranged along the axis with a plurality of keyways arranged according to different circular angles, and the plurality of tooth rings are fitted through the plurality of key ways arranged according to different circular angles so that the plurality of tooth rings are spirally distributed along the axis of the tooth roll shaft according to a set angle difference. In the split toothed roll, a gap is provided between the fitting surfaces of the two half-toothed rings after the adaptive connection is an integral ring. In the split tooth rolls of mineral sizers, lifting holes are provided on the crushing teeth of the two half tooth rings. The main advantages are as follows: mineral sizers split gear roller, by setting the gear ring as a split structure, can facilitate the manufacturing of the gear ring to reduce the processing cost; it can also ensure that when the tooth ring is excessively worn or broken, the rapid disassembly and replacement of the tooth ring can be achieved, effectively reducing the replacement and maintenance time, improving production efficiency, and effectively reducing the problem of broken teeth caused by foreign matter entering the tooth ring.