Self-aligning roller bearing with sealing ring
By changing the drum roller to a spherical roller and setting an arc ring groove on the inner ring, combining the sealing ring and nitrile rubber stop ring design, the lack of load and lubrication of spherical roller bearings is solved, and the loss of load and lubrication of spherical roller bearings is significantly improved Load bearing capacity and lubrication performance extend the service life of the bearing.
Patent Information
- Application Number
- CN202421767553.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The existing spherical roller centering roller bearings have shortcomings in load and lubrication, especially the lack of sealing mechanism, which affects their service life.
Change the traditional drum roller to a spherical roller, and have an arc ring groove on the inner ring to increase the contact surface between the roller and the inner ring, and a sealing ring is set on the outer ring, using a nitrile rubber material to match the ring Enhance the sealing effect.
By increasing the contact surface and sealing effect between the spherical roller and the inner ring, the load bearing capacity and lubrication performance are improved, and the service life of the bearing is extended.
Smart Images
Figure CN222254719U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a spherical roller bearing, in particular to a spherical roller bearing with a sealing ring. Background Art
[0002] Spherical roller bearings are bearings with drum-shaped rollers assembled between an inner ring with two raceways and an outer ring with a spherical raceway. Spherical roller bearings have two rows of rollers and mainly bear radial loads, but can also bear axial loads in any direction. They have high radial load capacity and are particularly suitable for working under heavy loads or vibration loads, but cannot bear pure axial loads. The outer ring raceway of this type of bearing is spherical, so it has good self-aligning performance and can compensate for coaxiality errors. Spherical roller bearings are generally used in papermaking machinery, reduction gears, railway vehicle axles, rolling mill gearbox bearing seats, rolling mill rollers, crushers, vibrating screens, printing machinery, woodworking machinery, various industrial reducers, vertical seated spherical bearings, etc. Existing spherical roller bearings are generally provided with a cage, and the rollers are generally drum-shaped, which is effective in absorbing vibration loads. However, spherical roller bearings with spherical rollers are rare. Existing spherical roller bearings with spherical rollers also require a cage to support the spherical rollers. The contact surface between the spherical rollers and the inner and outer rings is too small, which affects the load, and there is no sealing mechanism. Utility Model Content
[0003] In order to overcome the deficiencies in the background technology, the utility model discloses a spherical roller bearing with a sealing ring. The traditional drum roller is set as a spherical roller, and the spherical roller is fully loaded in two arc-shaped annular grooves provided on the inner ring, thereby increasing the contact surface between the spherical roller and the inner ring, and a sealing ring is provided, thereby achieving the purpose of increasing the load and lubrication of the spherical roller.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:
[0005] A spherical roller bearing with a sealing ring comprises an outer ring, a spherical roller and an inner ring. The inner wall of the outer ring of the outer ring is spherical. A protruding ring is provided in the middle of the inner ring outer wall of the inner ring. Inclined arcuate ring grooves are provided between the tops of the two side walls of the protruding ring and the inner ring outer wall. The curvatures of the two arcuate ring grooves are slightly greater than 180 degrees. Two groups of spherical rollers are fully loaded in the two arcuate ring grooves respectively. Annular half grooves are provided at both ends of the inner ring outer wall of the inner ring. The outer ring is sleeved on the outside of the two groups of spherical rollers. The outer edges of the two groups of spherical rollers are in contact with the inner wall of the outer ring. Two retaining rings are respectively sleeved on the two annular half grooves. The outer edges of the two retaining rings are respectively matched with the two ends of the inner wall of the outer ring.
[0006] The spherical roller bearing with a sealing ring is provided with arc surfaces on the outer edges of the two retaining rings, and the two arc surfaces are respectively matched with the clearances at the two ends of the inner wall of the outer ring.
[0007] The curvature of the arc surface of the spherical roller bearing with a sealing ring is the same as the curvature of the inner wall of the outer ring.
[0008] The self-aligning roller bearing with a sealing ring is provided with notches at the mouths of the two arc-shaped ring grooves located at the outer edge of the protruding ring.
[0009] The two retaining rings of the self-aligning roller bearing with a sealing ring are both made of nitrile rubber.
[0010] In the spherical roller bearing with a sealing ring, the inner ring inner wall of the inner ring is an annular plane structure.
[0011] The spherical roller bearing with a sealing ring is provided with chamfered transitions between the inner ring inner wall of the inner ring and the two end surfaces of the inner ring.
[0012] The outer ring outer wall of the outer ring of the spherical roller bearing with a sealing ring is an annular plane structure.
[0013] The spherical roller bearing with a sealing ring is provided with chamfered transitions between the outer ring outer wall of the outer ring and the two end surfaces of the outer ring.
[0014] The spherical roller bearing with a sealing ring has an inclination angle between two sides of the arc-shaped annular groove of 15 to 25 degrees.
[0015] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:
[0016] The spherical roller bearing with sealing ring described in the utility model increases the contact surface between the spherical roller and the inner ring by setting the traditional drum roller as a spherical roller and fully loading the spherical roller into two arc-shaped annular grooves provided on the inner ring, and sets a sealing ring, thereby achieving the purpose of increasing the load and lubrication degree of the spherical roller; the utility model is cleverly designed, simple and practical, and has strong adaptability, and effectively prolongs the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the utility model;
[0018] Figure 2 It is a three-dimensional structural schematic diagram of the outer ring of the utility model;
[0019] Figure 3 It is a three-dimensional structural schematic diagram of the inner ring of the utility model;
[0020] Figure 4 It is a three-dimensional structural schematic diagram of the retaining ring of the utility model.
[0021] In the figure: 1. Outer wall of outer ring; 2. Outer ring; 3. Inner wall of outer ring; 4. Arc surface; 5. Retaining ring; 6. Spherical roller; 7. Annular semi-groove; 8. Inner ring; 9. Inner wall of inner ring; 10. Arc-shaped annular groove; 11. Protruding ring; 12. Outer wall of inner ring; 13. Notch. DETAILED DESCRIPTION
[0022] The present invention can be explained in more detail through the following embodiments. The present invention is not limited to the following embodiments. The purpose of disclosing the present invention is to protect all changes and improvements within the scope of the present invention.
[0023] Combined with Figures 1 to 4 The self-aligning roller bearing with a sealing ring comprises an outer ring 2, spherical rollers 6 and an inner ring 8. The inner wall 3 of the outer ring 2 is spherical. A protruding ring 11 is provided in the middle of the inner ring outer wall 12 of the inner ring 8. Inclined arcuate annular grooves 10 are provided between the top of the two side walls of the protruding ring 11 and the inner ring outer wall 12. The curvature of the two arcuate annular grooves 10 is slightly greater than 180 degrees. Notches 13 are provided at the mouths of the two arcuate annular grooves 10 located at the outer edges of the protruding ring 11. Two groups of spherical rollers 6 are fully loaded in the two arcuate annular grooves 10 respectively. Annular half grooves 7 are provided at both ends of the inner ring outer wall 12 of the inner ring 8. The outer ring 2 is sleeved on the outside of the two groups of spherical rollers 6. The two groups of spherical rollers 6 are The outer edges are in contact with the inner wall 3 of the outer ring, and the two retaining rings 5 are respectively sleeved on the two annular half grooves 7. Arc surfaces 4 are respectively provided on the outer edges of the two retaining rings 5. The two arc surfaces 4 are respectively matched with the two ends of the outer ring inner wall 3. The curvature of the arc surface 4 is the same as the curvature of the outer ring inner wall 3. The material of the two retaining rings 5 is nitrile rubber. The inner ring inner wall 9 of the inner ring 8 is an annular plane structure, and chamfered transitions are respectively set between the inner ring inner wall 9 of the inner ring 8 and the two end surfaces of the inner ring 8. The outer ring outer wall 1 of the outer ring 2 is an annular plane structure, and chamfered transitions are respectively set between the outer ring outer wall 1 of the outer ring 2 and the two end surfaces of the outer ring 2. The inclination angles between the two sides of the notch of the arc-shaped ring groove 10 are 15 to 25 degrees respectively.
[0024] When implementing the spherical roller bearing with sealing ring described in the utility model, the two retaining rings 5 are respectively sleeved on the two annular semi-grooves 7, and the outer ring 2 is sleeved on the outside of the inner ring 8. Since the material of the two retaining rings 5 is nitrile rubber, which is soft, even if the outer edges of the two retaining rings 5 and the spherical inner wall 3 of the outer ring are clearance-matched, the two soft retaining rings 5 can be sleeved on the two annular semi-grooves 7 and then placed in the outer ring 2, and the inner ring 8 is rotated so that part of the arcuate annular groove 10 is located outside the outer ring 2, and the spherical rollers 6 that match the two fully filled arcuate annular grooves 10 are coated with bearing oil, and the two groups of spherical rollers 6 are sequentially installed into the two arcuate annular grooves 10 from the two notches 13, and the inner ring 8 is rotated so that the inner ring 8 is completely placed in the outer ring 2. At this time, the arc surfaces 4 respectively provided on the two retaining rings 5 are clearance-matched with the two ends of the inner wall 3 of the outer ring, and the assembly can be completed.
[0025] The parts not described in detail in this utility model are prior art.
Claims
1. A spherical roller bearing with a sealing ring, characterized by: The invention comprises an outer ring (2), a spherical roller (6) and an inner ring (8), wherein the outer ring inner wall (3) of the outer ring (2) is spherical, a protruding ring (11) is provided in the middle of the inner ring outer wall (12) of the inner ring (8), and an inclined arcuate annular groove (10) is provided between the top of the two side walls of the protruding ring (11) and the inner ring outer wall (12), wherein the arc of the two arcuate annular grooves (10) is slightly greater than 180 degrees, and the two sets of spherical rollers (6) are provided with a plurality of arcuate annular grooves (10) arranged at the same time. ) are fully filled in two arcuate annular grooves (10), annular half grooves (7) are provided at both ends of the inner ring outer wall (12) of the inner ring (8), the outer ring (2) is sleeved on the outside of the two groups of spherical rollers (6), the outer edges of the two groups of spherical rollers (6) are in contact with the inner wall (3) of the outer ring, and the two retaining rings (5) are respectively sleeved on the two annular half grooves (7), and the outer edges of the two retaining rings (5) are respectively in clearance fit with the two ends of the inner wall (3) of the outer ring.
2. The spherical roller bearing with a sealing ring according to claim 1 is characterized in that: The outer edges of the two retaining rings (5) are respectively provided with arc surfaces (4), and the two arc surfaces (4) are respectively clearance-matched with the two ends of the inner wall (3) of the outer ring.
3. The spherical roller bearing with a sealing ring according to claim 2, characterized in that: The curvature of the arc surface (4) is the same as the curvature of the inner wall (3) of the outer ring.
4. The spherical roller bearing with a sealing ring according to claim 1, characterized in that: Notches (13) are provided at the mouths of the two arc-shaped annular grooves (10) located at the outer edge of the protruding ring (11).
5. The spherical roller bearing with a sealing ring according to claim 1, characterized in that: The two retaining rings (5) are both made of nitrile rubber.
6. The spherical roller bearing with a sealing ring according to claim 1, characterized in that: The inner ring inner wall (9) of the inner ring (8) is an annular plane structure.
7. The spherical roller bearing with a sealing ring according to claim 6, characterized in that: Chamfered transitions are provided between the inner ring inner wall (9) of the inner ring (8) and the two end surfaces of the inner ring (8).
8. The spherical roller bearing with a sealing ring according to claim 1, characterized in that: The outer ring outer wall (1) of the outer ring (2) is an annular plane structure.
9. The spherical roller bearing with a sealing ring according to claim 8, characterized in that: Chamfered transitions are provided between the outer ring outer wall (1) of the outer ring (2) and the two end surfaces of the outer ring (2).
10. The spherical roller bearing with a sealing ring according to claim 1, characterized in that: The inclination angles between the two sides of the arc-shaped annular groove (10) are respectively 15 to 25 degrees.