大型重载轴承润滑油路结构
By improving the lubrication circuit structure and adopting a split-flow design and gravity-assisted circulation oil supply, the problem of uneven lubrication distribution was solved, achieving uniform lubrication and efficient cooling of large heavy-duty bearings, and ensuring the accuracy and safety of test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- C&U CO LTD
- Filing Date
- 2026-06-18
- Publication Date
- 2026-07-17
AI Technical Summary
The existing lubrication circuit structure of large heavy-duty bearings has problems such as uneven distribution of lubricating oil and inability to supply the inner and outer ring contact surfaces simultaneously, resulting in local dry friction and uneven lubrication, which affects the bearing performance and the accuracy of test results.
The upper and lower oil inlet and outlet pipes are arranged to form a gravity-assisted circulation base. Combined with the first diversion section, the annular section, the first connecting section and the second connecting section, a diversion-type lubrication circuit is formed to achieve uniform distribution of lubricating oil along the bearing axis and full circumferential diffusion, ensuring continuous oil supply to the contact surface between the rolling elements and the raceway. The second connecting section supplies oil to the contact surfaces between the rolling elements and the outer ring and the inner ring respectively.
It achieves uniform distribution and rapid circulation of lubricating oil, avoids local dry friction, improves lubrication and cooling effect, ensures the accuracy and reliability of test results, and prevents wear and adhesion problems.
Smart Images
Figure CN224515692U_ABST
Abstract
Claims
1. A large heavy load bearing lubricating oil passage structure characterized by: The device includes a housing for connecting a bearing. The housing includes an oil inlet pipe, an oil outlet pipe, and a lubrication oil passage. The oil inlet pipe and the oil outlet pipe are respectively located on the upper and lower sides of the housing. The lubrication oil passage includes a first guide section, an annular section, a first connecting section, and a second connecting section. The first guide section is connected to the oil inlet pipe and extends towards both ends of the bearing axial direction. The annular section is located at both ends of the first guide section and is connected to several radially extending extension sections. The first connecting section and the second connecting section are respectively located at the middle of the first guide section and on the extension sections.
2. The large heavy-duty bearing lubricating oil passage structure according to claim 1, characterized by: The second connecting segment consists of two segments, which extend axially to the contact surfaces of the rolling element with the outer ring and the inner ring, respectively.
3. The large heavy-duty bearing lubricating oil passage structure according to claim 1 or 2, characterized by: The housing includes an annular sleeve and a side sleeve. The annular sleeve is fitted onto the outside of the bearing, and the side sleeves are inserted into both sides of the annular sleeve. The first connecting section, the first drain section, the oil inlet pipe, and the oil outlet pipe are arranged on the annular sleeve. The second connecting section and the extension section are arranged on the side sleeves. The annular section is formed by the annular sleeve and the side sleeves at intervals.
4. The large heavy-duty bearing lubricating oil passage structure according to claim 3, characterized by: A gasket is provided between the side sleeve and the outer ring of the bearing, and an oil outlet section is formed between the ring sleeve, the side sleeve and the gasket. The oil outlet section is arranged in a ring and is connected to the oil outlet pipe.
5. The large heavy-duty bearing lubricating oil passage structure according to claim 1 or 2 or 4, characterized by: The housing also includes a seat sleeve clamped on both sides of the inner ring of the bearing, and a sealing gap is formed between the seat sleeve and the side sleeve.