A sealing device used on the uneven box body of a ball mill

Abstract

The invention provides a sealing device for the uneven box body of a ball mill, which is composed of a moving ring and a static ring. The dynamic connecting ring arranged in the radial direction, the inner moving ring is sleeved on the rotating shaft and fixedly connected with the rotating shaft; the cross section of the static ring is C-shaped, including the inner static ring, the outer static ring and the radial The static connecting ring is provided with a card slot inside the outer static ring, and the positioning step is fixed with the box by bolts. The inner side of the positioning step is provided with an adjusting ring and a bead. The adjusting ring is located in the card groove, and the bead is located outside the outer static ring. On the circular surface, the bead is provided with an adjusting screw for fixing the outer static ring and the positioning step. The device can better seal the chamber containing lubricating grease between the rotating shaft and the box, and can also deal with the axial deflection and radial deflection during the rotation process to ensure the sealing under the deflection condition Effect.

Description

technical field [0001] The invention provides a sealing device, in particular a sealing device used for sealing a rotating shaft in a ball mill and applicable to an uneven box side wall, belonging to the technical field of mechanical sealing. Background technique [0002] The labyrinth seal is to set a number of annular sealing teeth arranged in sequence around the rotating shaft. A series of interception gaps and expansion cavities are formed between the teeth. device for the purpose. Because there is a gap between the rotor and the casing of the labyrinth seal, there is no solid contact, and thermal expansion is allowed, so it is suitable for high temperature, high pressure, and high speed frequency occasions. This sealing form is widely used in steam turbines, gas turbines, compressors, and blowers. The shaft end and the seal between stages. [0003] In some occasions where the use requirements are relatively strict, the sealing device must not only achieve zero leakage...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects in the background technology, the present invention provides a sealing device for the uneven box body of the ball mill, which can better seal the lubricating grease chamber between the rotating shaft and the box body, and at the same time It can also overcome the problems of difficult installation and poor sealing effect caused by the uneven side wall of the box in the ball mill

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