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2PGC-1370A型双齿辊破碎机已成功应用于煤矿石的破碎。但在石灰石矿山,由于矿源相对偏硬且大块率较高,破碎机在应用过程中出现了齿冠易断、齿环断裂后难以更换、破碎辊轴承内圈易裂的问题。在生产维修过程中,采取以箱式齿冠、复合齿环代替原部件和加装破碎辊轴向止推装置等办法,解决了破碎机生产过程中出现的问题,提高了生产效率,降低了生产成本。
2PGC-1370A double-roll crusher has been successfully used in the crushing of coal. However, in the limestone mines, due to the relatively hard mineral source and the high bulk ratio, the crusher is prone to breakage of the tooth crown during the application process, which is difficult to replace after the ring gear is broken, and the inner ring of the crushing roller bearing is easily cracked. In the process of production and maintenance, we adopt the method of replacing the original parts with the box crown and the compound tooth ring and adding the axial thrust device of the crushing roller to solve the problems occurred in the crusher’s production process, improve the production efficiency and reduce Cost of production.