Direct lubrication structure of high-speed bearing adopting oil dripping lubrication

By setting a direct lubrication structure of shallow arc grooves and oil injection holes on the outer ring of high-speed bearings, the complex problem of traditional bearing lubrication structure is solved, efficient lubrication and heat discharge are achieved, and cost and maintenance difficulties are reduced.

CN222634297UActive Publication Date: 2025-03-18ZHEJIANG ZHONGYUAN ELECTRIC
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Patent Information

Application Number
CN202421598927.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-08
Publication Date
2025-03-18
Estimated Expiration
2034-07-08

AI Technical Summary

Technical Problem

The oil circuit system of traditional bearing lubrication structures is complex, resulting in high cost and troublesome installation and maintenance, making it difficult to meet the lubrication needs of the high-speed rotating motor shaft.

Method used

A direct lubrication structure of high-speed bearings lubricated with drip oil is designed. By setting shallow arc grooves and oil injection holes on the outer ring of the bearing, lubricating oil is used to inject the outer ring and interior of the bearing through the oil injection holes, rolling and sliding lubrication are achieved, and heat is discharged through the oil outlet holes.

Benefits of technology

The direct lubrication of bearings is achieved, which reduces structural complexity and cost, simplifies the installation and maintenance process, and ensures effective lubrication and heat discharge of the rotating shaft of the high-speed rotating motor.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to a direct lubrication structure of a high-speed bearing adopting oil dripping lubrication, which comprises a bearing and a motor rotating shaft arranged on an inner ring of the bearing, a motor end cover is arranged on one side face of the bearing far away from the motor rotating shaft, and an oil injection hole and an oil outlet hole which penetrate through the motor end cover are vertically arranged on the motor end cover. Cover plates capable of being opened and closed are installed at the tops of the oil injection hole and the oil outlet hole, a shallow arc groove is formed in the position, right facing the bearing outer ring, of the bottom of the oil injection hole, one side of the shallow arc groove is communicated with the oil injection hole and the oil outlet hole, and the other side of the shallow arc groove is communicated with the interior of the bearing through a long-strip-shaped through hole penetrating through the bearing. Lubricating oil is injected into the bearing outer ring and the bearing through the oil injection hole, and a sealing oil cover is installed on one side of the bearing and located between the motor end cover and the motor rotating shaft. The utility model has the advantages of reasonable structure, direct lubrication, good lubrication effect, no complex oil path system, compact structure, low cost and convenience in maintenance.
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