Improved main shaft mechanism for vertical milling powder concentrator and vertical milling powder concentrator with improved main shaft mechanism

Abstract

The invention relates to an improved main shaft mechanism for a vertical milling powder concentrator and the vertical milling powder concentrator. According to the main shaft mechanism, an upper bearing set is welded to an upper stepped shaft section of a main shaft body; an upper bearing dust-proof piece is sealed at the top of the upper bearing set; a lower bearing set is welded to a lower stepped shaft section of the main shaft body; a lower bearing dust-proof piece is sealed at the bottom of the lower bearing set; lubricating oil paths comprise an upper bearing lubricating oil path and a lower bearing lubricating oil path; and one end of the upper bearing lubricating oil path is connected to the upper bearing set, one end of the lower bearing lubricating oil path is connected to the lower bearing set, the other end of the upper bearing lubricating oil path and the other end of the lower bearing lubricating oil path are connected with a vertical milling electric forced lubricating oil pump, and the lubricating oil pump is controlled by a vertical milling central control program. According to the improved main shaft mechanism and the vertical milling powder concentrator, bearingsare protected on all the aspects of lubricating, dust proofing and vibrating, the overall service life of the main shaft body is prolonged, the maintaining cost is reduced, and the equipment runningrate is improved. The integral structure is assembled inside a workshop, filed installation is simple, and the reliability is high.

Description

technical field [0001] The invention relates to the technical field of cement manufacturing equipment in the building material industry, and more specifically relates to an improved spindle mechanism of a vertical mill separator and a vertical mill separator equipped with the same. Background technique [0002] Vertical mills are widely used in the grinding of raw material, coal powder, clinker, and slag in cement plants. The rotor of the vertical mill is driven by the rotation of the main shaft, but the ambient temperature of the main shaft is 100-150 °C, and the dust concentration is high. During continuous operation, the main shaft part cannot be effectively maintained due to the positional relationship, resulting in a high damage rate of the bearing, and the main reasons for the damage of the bearing are poor lubrication, dust ingress, unstable bearing fixed structure, and high temperature. Once some parts of the main shaft are damaged, the main machine of the vertical m...

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Problems solved by technology

[0002] Vertical mills are widely used in the grinding of raw material, coal powder, clinker, and slag in cement plants. The rotor of the vertical mill is driven by the rotation of the main shaft, but the ambient temperature of the main shaft is 100-150 °C, and the dust concentration is high. During continuous operation, the main shaft part cannot be effectively maintained due to the positional relationship, resulting in a high damage rate of the bearing, and the main reasons for the damage of the bearing are poor lubrication, dust ingress, unstable bearing fixed structure, high temperature, etc.

Once some parts of the main shaft are damaged, the main machine of the vertical mill will be shut down, and the production line will fall into a state of shutdown, causing huge losses

At present, the structural form of the spindle part of the vertical mill separator at home and abroad is also being continuously improved, but there is a lack of overall effective consideration

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