Vertical grinding roller sleeve

Abstract

The invention belongs to the field of roller sleeves, and particularly relates to a vertical grinding roller sleeve which comprises a grinding roller, a conical sheath and a flange plate. The flange plate is fixedly connected to the end with the larger diameter of the conical sheath, a flange on the outer side of the conical sheath is also provided with a connecting hole connected with the grinding roller, the roller shaft is sleeved with the conical sheath, the conical sheath consists of two half-arranged half roller sleeves, the two half roller sleeves are fixedly connected through a connecting plate arranged at the end part, the outer ring of the combined conical sheath is sleeved with a fixing ring, and an elastic ring is arranged on the contact surface of the conical sheath and the roller sleeves. The vertical grinding roller sleeve is simple in structure and convenient to use, and the elastic ring is matched with the two half roller sleeves, so that the inside of the conical sheath is sealed, bolt loosening caused by heat flow impact is avoided, the outer surface of the conical sheath is protected by a buffer plate, and the whole service life of the conical sheath is prolonged.

Description

technical field [0001] The invention belongs to the field of roller sleeves, in particular to a vertical grinding roller sleeve. Background technique [0002] Vertical mill is a large-scale grinding equipment, which is widely used in cement, electric power, metallurgy, chemical industry, non-metallic minerals and other industries. It integrates crushing, drying, grinding, and grading transportation. Granular and powdery raw materials are ground into the required powdery materials. When the vertical mill is working, the material to be ground falls to the center of the grinding table by the impact of gravity and air flow. The grinding table rotating at a constant speed distributes the material evenly and horizontally on the grinding table. The grinding roller bites the material and grinds it. Under the action of centrifugal force, the crushed material is thrown from the middle of the grinding table to the edge of the grinding table, and the material leaving the grinding table...

AI Technical Summary

Problems solved by technology

Due to the unreasonable structural design of the horn sleeves in the prior art, the full range of protection for the grinding roller and the grinding roller shaft cannot be achieved. In production practice, there are the following problems: the horn sleeve is usually integral, and it is repaired and replaced after wear and tear. It is troublesome, which wastes time and increases labor intensity; because there is no protective facility on the outer surface of the horn sleeve, the material directly contacts the surface of the horn sleeve when the grinding roller is running, and the impact force is very large, which will excessively wear the horn sleeve and cause the horn sleeve to be scrapped prematurely ; In the prior art, the taper of the opening of the horn sleeve is relatively large, and the hot air flow with the material will refract along the surface of the horn sleeve and change direction, enter the inside of the horn sleeve, cause erosion and abrasion to the grinding roller shaft, and cannot protect the material; Driven by the hot air flow, the impact force on the connecting bolts at the joint between the horn sleeve and the grinding roller is very large, which will not only cause the bolts to loosen, but also cause the heads of the connecting bolts to be worn or even completely ground after a long time, seriously affecting the service life. Accordingly, the present invention proposes a vertical mill roll sleeve

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