Self-lubricating double-check-ring combined retainer
By adding protrusions and clearance grooves to the self-lubricating double retainer combination retainer, the problem of poor lubrication effect of bearing retainer is solved, smooth lubrication is achieved, and the service life of bearing is extended.
Patent Information
- Application Number
- CN202423293562.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing bearing retainer has a small gap between the retaining ring and the inner and outer rings of the bearing, resulting in poor lubrication and affecting the service life of the bearing.
A self-lubricating double retainer combination retainer is designed. By installing a protrusion and setting a clearance groove on the inner side of the support column, the gap between the retainer ring and the inner and outer rings of the bearing is increased, ensuring that the lubricating oil can fully enter the bearing cavity, while maintaining the fixation of the bearing rollers.
It improves lubrication, prevents bearing overheating, and extends bearing life.
Smart Images
Figure CN223578553U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing retainer technology, and in particular to a self-lubricating double retainer combination retainer. Background Technology
[0002] A bearing cage, also called a retainer, is a bearing component that partially encloses all or part of the rolling elements and moves with them. It is used to isolate the rolling elements and usually guides and holds them within the bearing. Currently, cylindrical roller bearings with double retainer cages are mostly used in heavy-duty parts such as automotive transmissions and rear axles. To increase load-bearing capacity, heavy machinery also uses double bearings at the shaft end.
[0003] Existing cages typically consist of two parallel retaining rings and a support post between them. Since bearings require lubrication, poor lubrication during high-speed operation can cause overheating, increased friction, shortened bearing life, and even accidents. Internal bearing lubrication generally involves pressurizing lubricating oil and channeling it from one side of the bearing through the gap between the retaining rings and the inner and outer rings of the bearing to lubricate the rollers. However, the gap between the retaining rings and the inner and outer rings of existing bearing cages is relatively small, resulting in poor lubrication. Because the width of the retaining rings and the width of the support post are matched, reducing the width of the retaining rings to increase the lubrication gap will also reduce the width of the support post. An excessively small support post width reduces the contact area between the support post and the bearing rollers, affecting the cage's ability to secure the rollers. Therefore, bearing lubrication problems persist, impacting bearing lifespan.
[0004] Therefore, it is necessary to propose a self-lubricating double retainer combination retainer to improve the lubrication effect of the bearing. Utility Model Content
[0005] The purpose of this invention is to solve the problem that the gap between the existing bearing retainer and the inner and outer rings of the bearing is too small, resulting in poor lubrication. A self-lubricating double retainer combination retainer is provided.
[0006] The technical solution of this utility model is:
[0007] A self-lubricating double retainer assembly includes two parallel retaining rings, with a support post between the two retaining rings. The two ends of the support post are fixedly connected to the two retaining rings respectively. The outer side of the support post is aligned with the outer edge of the retaining ring, and the inner side of the support post is aligned with the inner edge of the retaining ring. A protrusion is fixedly connected to the inner side of the support post, and the protrusion is parallel to the support post. Both ends of the protrusion are provided with clearance grooves.
[0008] Furthermore, the number of bumps and support columns are the same and they correspond one-to-one.
[0009] Further, opposite faces of the two adjacent support columns are concave first arc surfaces, and the protrusion is provided with a second arc surface coaxial with the first arc surface, and the first arc surface and the second arc surface have the same diameter.
[0010] Further, the protrusion is long strip-shaped and has a rectangular cross section.
[0011] Further, the avoidance groove is a circular arc groove, and the diameter of the avoidance groove matches the diameter of the bearing inner ring.
[0012] The self-lubricating double-retaining ring combined retainer of the utility model changes the structure of the support column, reduces the width of the retaining ring, makes the gap between the retaining ring of the retainer and the inner and outer rings of the bearing larger, facilitates lubrication, improves the lubrication effect, although the support column is reduced together with the retaining ring width, but the protrusion is installed on the inner side of the support column, makes the protrusion and the support column contact with the bearing roller together, ensures the fixation of the bearing roller, and the avoidance grooves arranged at both ends of the protrusion can solve the interference problem of the protrusion to the bearing inner ring, makes the bearing inner ring pass through the avoidance groove, makes the added protrusion not affect the rotation of the bearing inner ring, compared with the traditional technology, the technical scheme increases the gap between the bearing retainer and the bearing retaining edge, makes the lubricating oil fully enter the bearing cavity, makes the lubrication smooth, avoids the heating of the bearing, and improves the service life of the bearing. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a perspective view of the utility model;
[0014] Figure 2 It is an internal structure view of the utility model.
[0015] Reference signs: 1, retaining ring; 2, support column; 3, protrusion; 4, avoidance groove; 5, first arc surface; 6, second arc surface. DETAILED DESCRIPTION
[0016] In order to make the technical means, technical features, utility model purposes and technical effects realized by the utility model easy to understand, the utility model is further described below in combination with specific drawings.
[0017] Example one:
[0018] As Figure 1 and Figure 2As shown, the embodiment provides a self-lubricating double-retainer ring combined retainer, which comprises two parallel retainer rings 1, a support column 2 arranged between the two retainer rings 1, both ends of the support column 2 being fixed by a press bed and being fixed with the two retainer rings 1, the outer side of the support column 2 being aligned with the outer ring edge of the retainer ring 1, the inner side of the support column 2 being aligned with the inner ring edge of the retainer ring 1, the inner side of the support column 2 being fixedly connected with a lug 3, the lug 3 and the support column 2 being integrally formed by a cutting machine, the lug 3 being parallel to the support column 2, both ends of the lug 3 being provided with an avoiding groove 4, preferably, the number of the lug 3 and the support column 2 is the same and they are one-to-one corresponding, preferably, the opposite faces of the two adjacent support columns 2 are concave first arc surfaces 5, the lug 3 is provided with a second arc surface 6 coaxial with the first arc surface 5, the diameters of the first arc surface 5 and the second arc surface 6 are the same, the first arc surface 5 and the second arc surface 6 are matched with the diameter of the bearing roller, preferably, the lug 3 is long-strip-shaped and the cross section is rectangular, preferably, the avoiding groove 4 is a circular-arc-shaped groove, the diameter of the avoiding groove 4 is matched with the diameter of the bearing inner ring.
[0019] In use, the structure of the support column 2 is changed, the width of the retainer ring 1 is reduced, the gap between the retainer ring 1 and the bearing inner and outer rings is enlarged, lubrication is facilitated, and the lubrication effect is improved, although the support column 2 is reduced along with the reduction of the width of the retainer ring 1, the lug 3 is installed on the inner side of the support column 2, the lug 3 and the support column 2 are in contact with the bearing roller, the fixing of the bearing roller is ensured, and the avoiding groove 4 arranged at both ends of the lug 3 can solve the interference problem of the lug 3 to the bearing inner ring, the bearing inner ring can pass through the avoiding groove 4, the increased lug 3 does not affect the rotation of the bearing inner ring, compared with the traditional technology, the gap between the bearing retainer and the bearing retainer ring is increased, the lubricating oil can fully enter the bearing cavity, the lubrication is smooth, the bearing heating is avoided, and the bearing life is improved.
[0020] In conclusion, only the preferred embodiments of the utility model are described, which do not limit the implementation range of the utility model. Any equivalent changes and modifications made according to the content of the utility model application scope should belong to the technical scope of the utility model.
Claims
1. A self-lubricating double retainer assembly, comprising two parallel retaining rings (1), a support post (2) provided between the two retaining rings (1), the two ends of the support post (2) being fixedly connected to the two retaining rings (1) respectively, characterized in that: The outer side of the support column (2) is aligned with the outer edge of the retaining ring (1), the inner side of the support column (2) is aligned with the inner edge of the retaining ring (1), and a protrusion (3) is fixedly connected to the inner side of the support column (2). The protrusion (3) is parallel to the support column (2), and clearance grooves (4) are provided at both ends of the protrusion (3).
2. The self-lubricating double retainer ring assembly retainer according to claim 1, characterized in that: The number of protrusions (3) and support columns (2) are the same and they correspond one-to-one.
3. The self-lubricating double retainer ring assembly retainer according to claim 1, characterized in that: The opposing surfaces of two adjacent support columns (2) are concave first arc surfaces (5), and the protrusion (3) is provided with a second arc surface (6) coaxial with the first arc surface (5). The diameters of the first arc surface (5) and the second arc surface (6) are the same.
4. The self-lubricating double retainer ring assembly retainer according to claim 1, characterized in that: The protrusion (3) is long and rectangular in cross-section.
5. The self-lubricating double retainer ring assembly retainer according to claim 1, characterized in that: The clearance groove (4) is an arc-shaped groove, and the diameter of the clearance groove (4) matches the diameter of the inner ring of the bearing.