Sealing structure of self-aligning roller bearing

Abstract

The utility model relates to the technical field of bearings, and discloses a sealing structure of a self-aligning roller bearing, which comprises an inner ring, an outer ring, a roller and a retainer, the retainer is arranged on the outer wall of the circumference of the inner ring, the roller is arranged on the retainer, the outer ring is connected with the roller, two sides of the inner ring and two sides of the outer ring are respectively provided with a rotary blocking ring sleeve, and the rotary blocking ring sleeves are connected with the retainer. The rotary blocking ring sleeve is of a structure with the middle recessed and the two sides protruding, first ring grooves are formed in the two sides of the inner ring, second ring grooves are formed in the two sides of the outer ring, and the protruding positions of the rotary blocking ring sleeve are inserted into the first ring grooves and the second ring grooves. According to the self-aligning roller bearing, a gap between the inner ring and the outer ring can be well sealed, the sealing effect of the self-aligning roller bearing is improved, the friction area of the fixed type blocking ring sleeve can be reduced, abrasion of the fixed type blocking ring sleeve is reduced, and the service life of the fixed type blocking ring sleeve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, and more particularly to a sealing structure of a spherical roller bearing. 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. They have two rows of rollers and mainly bear radial loads, but can also withstand axial loads in either direction.

[0003] After searching, a Chinese patent with the announcement number CN216951290U discloses a sealed spherical roller bearing, which is connected by a male buckle and a female buckle, and then an annular sealing plate is installed between the gap for sealing. However, the following defects still exist: since the above-mentioned sealing structure is between the retaining frame and the inner ring and outer ring, the rotation gap is too large, making it difficult to achieve a good seal. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sealing structure of a spherical roller bearing to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a sealing structure of a spherical roller bearing, comprising an inner ring, an outer ring, rollers and a cage, wherein a cage is provided on the circumferential outer wall of the inner ring, the rollers are arranged on the cage, the outer ring is connected to the rollers, a rotating blocking ring sleeve is provided on both sides of the inner ring and the outer ring, the rotating blocking ring sleeve is a structure with a middle recess and convex sides, a first ring groove is provided on both sides of the inner ring, a second ring groove is provided on both sides of the outer ring, the convex parts of the rotating blocking ring sleeve are inserted into the first ring groove and the second ring groove, the convex parts of the rotating blocking ring sleeve are provided with an adsorption component 1, so that the rotating blocking ring sleeve is installed on the inner ring and the outer ring.

[0006] As a further solution of the present invention, the adsorption component is a plurality of magnetic strips, and a plurality of mounting grooves are provided at the protrusion of the rotary blocking ring sleeve. The plurality of magnetic strips are respectively fixedly connected in the plurality of mounting grooves, and the plurality of magnetic strips are respectively adsorbed with the inner ring and the outer ring.

[0007] As a further solution of the present invention, it also includes a fixed blocking ring sleeve, which is an outer ring protrusion structure, and both sides of the outer ring are provided with mounting ring grooves, the protrusion of the fixed blocking ring sleeve is inserted into the mounting ring groove, and the protrusion of the fixed blocking ring sleeve is provided with an adsorption component 2, so that the fixed blocking ring sleeve is installed on the outer ring, and the circumferential inner wall of the mounting ring groove is integrally formed with a plurality of limiting protrusions, and the circumferential outer wall of the fixed blocking ring sleeve is provided with a plurality of limiting grooves, and the plurality of limiting protrusions are respectively engaged with the plurality of limiting grooves, and both sides of the inner ring are provided with blocking ring grooves, and the inner ring of the fixed blocking ring sleeve is fixedly connected with a blocking convex ring, and the blocking convex ring is clamped in the blocking ring groove, so that the fixed blocking ring sleeve is connected to the inner ring.

[0008] As a further solution of the present invention, the adsorption component is a plurality of magnetic strips 2, and a plurality of mounting openings are opened at the protrusion of the fixed blocking ring sleeve. The plurality of magnetic strips 2 are respectively fixedly connected in the plurality of mounting openings, and the plurality of magnetic strips 2 are all adsorbed with the outer ring.

[0009] As a further solution of the present invention, the plurality of limiting protrusions and the plurality of limiting grooves are all arc-shaped structures.

[0010] As a further solution of the present invention, the plurality of magnetic strips 2 are respectively staggered with the plurality of limiting grooves.

[0011] The technical effects and advantages of this utility model are:

[0012] 1. The utility model is provided with a rotating blocking ring sleeve, which is installed in the ring groove 1 on the inner ring and the ring groove 2 on the outer ring, so that the rotating blocking ring sleeve covers the gap between the inner ring and the outer ring. At the same time, the rotating blocking ring sleeve can rotate with the inner ring or the outer ring, so that the gap between the inner ring and the outer ring can be better sealed, thereby improving the sealing effect of the spherical roller bearing.

[0013] 2. The utility model is provided with a fixed blocking ring sleeve, which is fixed in the mounting ring groove by a limiting protrusion and a limiting groove, so that the fixed blocking ring sleeve can only rotate with the inner ring, thereby reducing the friction area of ​​the fixed blocking ring sleeve, reducing the wear of the fixed blocking ring sleeve, and improving the service life of the fixed blocking ring sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the exploded structure of Example 1 of the present utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the rotary blocking ring sleeve according to the first embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the second embodiment of the present utility model.

[0018] Figure 5 This is a schematic diagram of the exploded structure of Example 2 of the present utility model.

[0019] Figure 6 This is a schematic diagram of the enlarged structure of part A of the second embodiment of the present utility model.

[0020] Figure 7 This is a schematic diagram of the fixed blocking ring structure of Example 2 of the present utility model.

[0021] The figures are marked as follows: 1. inner ring; 2. rotating blocking ring sleeve; 3. outer ring; 4. ring groove one; 5. ring groove two; 6. roller; 7. retaining frame; 8. magnetic strip one; 9. fixed blocking ring sleeve; 10. blocking ring groove; 11. mounting ring groove; 12. limiting protrusion; 13. magnetic strip two; 14. limiting groove; 15. blocking protrusion ring. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely examples. The present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Example 1

[0024] Reference Figure 1-Figure 3The utility model provides a sealing structure of a spherical roller bearing, comprising an inner ring 1, an outer ring 3, rollers 6 and a retainer 7. A retainer 7 is provided on the circumferential outer wall of the inner ring 1, and the rollers 6 are arranged on the retainer 7. The outer ring 3 is connected to the rollers 6. A rotating blocking ring sleeve 2 is provided on both sides of the inner ring 1 and the outer ring 3. The rotating blocking ring sleeve 2 is a structure with a middle recess and convex sides. A ring groove 1 4 is provided on both sides of the inner ring 1, and a ring groove 2 5 is provided on both sides of the outer ring 3. The convex parts of the rotating blocking ring sleeve 2 are inserted into the ring groove 1 4 and the ring groove 2 5. The convex parts of the rotating blocking ring sleeve 2 are provided with an adsorption component 1, so that the rotating blocking ring sleeve 2 can be installed in the inner ring 1. On the inner ring 1 and the outer ring 3, first, the raised part of the rotary blocking ring sleeve 2 is inserted into the ring groove 1 4 on the inner ring 1 and the ring groove 2 5 on the outer ring 3, and the rotary blocking ring sleeve 2 is installed on the inner ring 1 and the outer ring 3 through the adsorption component, so that the gap between the inner ring 1 and the outer ring 3 is covered by the rotary blocking ring sleeve 2. Since the rotary blocking ring sleeve 2 is installed by adsorption through the adsorption component, the rotary blocking ring sleeve 2 may rotate with the inner ring 1 and may also rotate with the outer ring 3, so that the gap between the inner ring 1 and the outer ring 3 can be better sealed, thereby improving the sealing effect of the spherical roller bearing.

[0025] In the present invention, the adsorption components are multiple magnetic strips 8, and multiple mounting grooves are opened at the protrusion of the rotary blocking ring sleeve 2. The multiple magnetic strips 8 are respectively bonded in the multiple mounting grooves. The multiple magnetic strips 8 are respectively adsorbed with the inner ring 1 and the outer ring 3. When the protrusion of the rotary blocking ring sleeve 2 is inserted into the ring groove 4 on the inner ring 1 and the ring groove 2 5 on the outer ring 3, the rotary blocking ring sleeve 2 is adsorbed between the inner ring 1 and the outer ring 3 through the magnetic strips 8.

[0026] The working principle of this embodiment is as follows: first, the raised part of the rotary blocking ring sleeve 2 is inserted into the ring groove 1 4 on the inner ring 1 and the ring groove 2 5 on the outer ring 3, and the rotary blocking ring sleeve 2 is adsorbed between the inner ring 1 and the outer ring 3 through the magnetic strip 1 8, so that the rotary blocking ring sleeve 2 is installed on the inner ring 1 and the outer ring 3, thereby covering the gap between the inner ring 1 and the outer ring 3 through the rotary blocking ring sleeve 2. At the same time, since the rotary blocking ring sleeve 2 is adsorbed and installed with the inner ring 1 and the outer ring 3 through the magnetic strip 1 8, and the magnetic force of the magnetic strip 1 8 is the same, the rotary blocking ring sleeve 2 may rotate between the inner ring 1 and the outer ring 3, thereby better sealing the gap between the inner ring 1 and the outer ring 3, thereby improving the sealing effect of the spherical roller bearing.

[0027] Example 2

[0028] Reference Figure 4-Figure 7The utility model provides a sealing structure of a spherical roller bearing, which also includes a fixed blocking ring sleeve 9, which is a raised structure of the outer ring. Both sides of the outer ring 3 are provided with mounting grooves 11, and the raised parts of the fixed blocking ring sleeve 9 are inserted into the mounting grooves 11. The raised parts of the fixed blocking ring sleeve 9 are provided with an adsorption component 2, so that the fixed blocking ring sleeve 9 is installed on the outer ring 3, and the circumferential inner wall of the mounting groove 11 is integrally formed with a plurality of limiting protrusions 12. The circumferential outer wall of the fixed blocking ring sleeve 9 is provided with a plurality of limiting grooves 14, and the plurality of limiting protrusions 12 are respectively engaged with the plurality of limiting grooves 14. Both sides of the inner ring 1 are provided with blocking ring grooves 10, and the inner ring of the fixed blocking ring sleeve 9 is welded with a blocking convex ring 15, and the blocking convex ring 15 is snapped into the blocking ring groove 10, so that the fixed blocking ring sleeve 9 is connected to the inner ring 1. In the above embodiment, since the rotating blocking ring sleeve 2 may rotate with the inner ring 1, it may also rotate with the outer ring 3. The outer ring 3 is fixed with the outer ring 3 and the outer ring 3 is fixed with the inner ring 1. The fixing ring 9 is fixed with the fixing ring 9 and the fixing ring 9 is fixed with the fixing ring 9.

[0029] In this embodiment, the adsorption components are multiple magnetic strips 13, and multiple installation openings are opened at the protrusion of the fixed blocking ring sleeve 9. The multiple magnetic strips 13 are respectively bonded in the multiple installation openings. The multiple magnetic strips 13 are all adsorbed with the outer ring 3. During the installation of the fixed blocking ring sleeve 9, the fixed blocking ring sleeve 9 will be adsorbed with the outer ring 3 through the magnetic strips 13, thereby adsorbing and installing the fixed blocking ring sleeve 9. The multiple limiting protrusions 12 and the multiple limiting grooves 14 are all arc-shaped structures, and the multiple magnetic strips 13 are respectively staggered with the multiple limiting grooves 14.

[0030] The working principle of this embodiment is as follows: by installing the fixed blocking ring sleeve 9 in the mounting ring groove 11 on the outer ring 3, and making the limiting protrusion 12 in the mounting ring groove 11 snap into the limiting groove 14 on the fixed blocking ring sleeve 9, and the fixed blocking ring sleeve 9 is adsorbed and installed with the outer ring 3 through the magnetic strip 2 13, thereby limiting the fixed blocking ring sleeve 9, and at the same time, the blocking protrusion 15 on the fixed blocking ring sleeve 9 is snapped into the blocking ring groove 10 on the inner ring 1, so that the fixed blocking ring sleeve 9 is connected to the inner ring 1, so that the fixed blocking ring sleeve 9 covers the gap between the inner ring 1 and the outer ring 3. At this time, since the limiting protrusion 12 and the limiting groove 14 limit the fixed blocking ring sleeve 9, the fixed blocking ring sleeve 9 can only rotate with the inner ring 1, thereby reducing the friction area of ​​the fixed blocking ring sleeve 9, reducing the wear of the fixed blocking ring sleeve 9, and improving the service life of the fixed blocking ring sleeve 9.

[0031] Finally, a few points should be noted: In the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0032] In the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A sealing structure for a spherical roller bearing, comprising an inner ring (1), an outer ring (3), rollers (6) and a cage (7), characterized in that: The circumferential outer wall of the inner ring (1) is provided with a retaining frame (7), the roller (6) is arranged on the retaining frame (7), the outer ring (3) is connected to the roller (6), and both sides of the inner ring (1) and the outer ring (3) are provided with a rotating blocking ring sleeve (2), the rotating blocking ring sleeve (2) is a structure with a middle recess and two convex sides, both sides of the inner ring (1) are provided with a ring groove (4), and both sides of the outer ring (3) are provided with a ring groove (5), the convex part of the rotating blocking ring sleeve (2) is inserted into the ring groove (4) and the ring groove (5), and the convex part of the rotating blocking ring sleeve (2) is provided with an adsorption component (1), so that the rotating blocking ring sleeve (2) is installed on the inner ring (1) and the outer ring (3).

2. The sealing structure of a spherical roller bearing according to claim 1, characterized in that: The adsorption components are a plurality of magnetic strips (8), a plurality of mounting grooves are provided at the protrusion of the rotary blocking ring sleeve (2), the plurality of magnetic strips (8) are respectively fixedly connected in the plurality of mounting grooves, and the plurality of magnetic strips (8) are respectively adsorbed with the inner ring (1) and the outer ring (3).

3. The sealing structure of a spherical roller bearing according to claim 1, characterized in that: The invention also includes a fixed blocking ring sleeve (9), the fixed blocking ring sleeve (9) is an outer ring protrusion structure, both sides of the outer ring (3) are provided with a mounting ring groove (11), the protrusion of the fixed blocking ring sleeve (9) is inserted into the mounting ring groove (11), the protrusion of the fixed blocking ring sleeve (9) is provided with an adsorption component 2, so that the fixed blocking ring sleeve (9) is installed on the outer ring (3), and the circumferential inner wall of the mounting ring groove (11) is integrally formed with a plurality of limiting protrusions (11). 2), a plurality of limiting grooves (14) are provided on the circumferential outer wall of the fixed blocking ring sleeve (9), and a plurality of limiting protrusions (12) are respectively engaged with the plurality of limiting grooves (14), and blocking ring grooves (10) are provided on both sides of the inner ring (1), and the inner ring of the fixed blocking ring sleeve (9) is fixedly connected with a blocking protrusion ring (15), and the blocking protrusion ring (15) is engaged in the blocking ring groove (10), so that the fixed blocking ring sleeve (9) is connected to the inner ring (1).

4. The sealing structure of a spherical roller bearing according to claim 3, characterized in that: The adsorption components are multiple magnetic strips (13), and multiple installation openings are opened at the protrusion of the fixed blocking ring sleeve (9). The multiple magnetic strips (13) are respectively fixedly connected in the multiple installation openings, and the multiple magnetic strips (13) are all adsorbed with the outer ring (3).

5. The sealing structure of a spherical roller bearing according to claim 3, characterized in that: The plurality of limiting protrusions (12) and the plurality of limiting grooves (14) are all arc-shaped structures.

6. The sealing structure of a spherical roller bearing according to claim 4, characterized in that: The plurality of magnetic strips 2 (13) are respectively staggered with the plurality of limiting grooves (14).

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