Vacuum oil throwing device for retainer

By drawing a vacuum in the cage vacuum oil-throwing device and utilizing a magnetohydrodynamic seal and a high-speed motor, the problem of insufficient centrifugal force in traditional oil-throwing devices is solved, achieving efficient lubricating oil throwing and improving oil-throwing efficiency.

CN224332378UActive Publication Date: 2026-06-09LUOYANG JILINXING INFORMATION TECH CO LTD
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Patent Information

Application Number
CN202521229836.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-16
Publication Date
2026-06-09
Estimated Expiration
2035-06-16

AI Technical Summary

Technical Problem

Traditional oil-scraping devices lack sufficient centrifugal force to meet the requirements of a wide range of centrifugal force thresholds, requiring repeated operations to achieve the required oil content of the cage, resulting in low oil-scraping efficiency.

Method used

A cage vacuum oil-throwing device was designed. By drawing a vacuum in the sealed working chamber, the oil-throwing adapter shaft is driven by a magnetic fluid sealing device and a high-speed motor to achieve high-speed rotation of the cage under vacuum, thereby improving the centrifugal force reserve capacity and efficiently throwing out the lubricating oil.

Benefits of technology

In a vacuum environment, the cage can reach higher speeds more quickly, significantly increasing centrifugal force, shortening oil slinging time, and improving oil slinging efficiency. It eliminates the need for repeated operations and meets the requirements of a wide range of centrifugal force thresholds.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to the technical field of centrifugal equipment, in particular to a retainer vacuum oil throwing device which is characterized in that a device body is arranged in a metal frame, an upper cylinder barrel cover is arranged at the top of the device body, the device body is provided with a sealing working cavity, and a magnetic fluid sealing device is arranged at the bottom of the sealing working cavity. The oil slinging shaft sleeve is arranged on the magnetic fluid sealing device, the oil slinging adapter shaft is rotatably arranged in the oil slinging shaft sleeve and connected with the oil slinging shaft, the gland is arranged at the top end of the oil slinging shaft, and the vacuum pump is connected with the sealing working cavity through the connecting pipe and arranged in the metal frame. A rotating shaft of the motor penetrates through the shaft hole of the magnetic fluid sealing device and the bottom wall of the device body to be connected with the oil throwing adapter shaft. The problems that the reserve of centrifugal force capacity of a traditional oil throwing device is small, the requirement for a wide centrifugal force threshold value range cannot be met, the oil content required by the retainer can be achieved only by repeating the oil throwing operation process for multiple times, and the oil throwing efficiency is low are solved.
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