Sealing type tapered roller bearing

Abstract

The utility model relates to the technical field of bearings, and discloses a sealed tapered roller bearing which is characterized in that one side of an inner ring can be shielded by a baffle plate of an outer ring, an arc-shaped strip is placed through a mounting channel, so that the arc-shaped strip can be conveniently rotated into an arc-shaped groove in a sliding manner, a protective cover is clamped with the outer ring through a limiting assembly, and the protective cover is conveniently and quickly mounted. The stability and firmness of the protective cover can be guaranteed, and the protective cover is not prone to falling off; the protective cover has the advantages that one side of the inner ring can be shielded through the baffles of the outer ring, the arc-shaped strips are placed through the installation channels, the arc-shaped strips can be conveniently rotated into the arc-shaped grooves in a sliding mode, the protective cover and the outer ring are clamped through the limiting assemblies, the protective cover can be conveniently and rapidly installed, the stability and firmness of the protective cover can be guaranteed, and the service life of the protective cover is prolonged. The protective cover is not easy to fall off and can shield the other side of the inner ring, so that the inner ring and the protective cover can be conveniently and quickly mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a sealed tapered roller bearing. Background Art

[0002] Tapered roller bearings are separable bearings. Both the inner and outer rings of the bearings have tapered raceways. This type of bearing is divided into single-row, double-row and four-row tapered roller bearings according to the number of rows of rollers installed. Single-row tapered roller bearings can withstand radial loads and unidirectional axial loads. When the bearing is subjected to radial loads, an axial force component will be generated, so another bearing that can withstand the axial force in the opposite direction is required to balance it.

[0003] Its application number "CN202123245030.3" discloses a "tapered roller bearing capable of sealing and storing oil", which "comprises an inner ring, an outer ring, inner and outer spacers, a support ring and a plurality of roller bodies, one side of the inner ring is integrally formed with a sliding ring, one side of the outer ring is integrally formed with a guide ring, the sliding ring and the guide ring are movably connected, one side of the support ring is fixedly connected with a first anti-wear sealing ring and a second anti-wear sealing ring, and the first anti-wear sealing ring is in contact with the outer ring, and the second anti-wear sealing ring is in contact with the inner ring". In the utility model, by providing the sliding ring, the guide ring, the first anti-wear sealing ring and the second anti-wear sealing ring, the sealing of the tapered roller bearing can be ensured when the tapered roller bearing is in use, the leakage of the lubricating oil inside the tapered roller bearing can be effectively avoided, and the long-term use of the tapered roller bearing can be guaranteed.

[0004] However, the above method still has the following defects: the sealing ring can be installed by setting the sliding ring and the guide ring, but the sliding ring and the guide ring need to be integrally formed with the inner ring and the outer ring respectively, which is not convenient for installation and disassembly; the rotation of the inner ring will cause friction between the sliding ring and the guide ring, which may easily cause wear of the sliding ring and the guide ring. Utility Model Content

[0005] The utility model aims to provide a sealed tapered roller bearing to solve the problems in the above background technology that it is inconvenient to install and disassemble, and the rotation of the inner ring may cause friction between the sliding ring and the guide ring.

[0006] The utility model provides the following technical solutions: a sealed tapered roller bearing, comprising an outer ring, an inner ring and a protective cover, the outer ring being rotatably connected to the inner ring through a rolling component, a protective cover being provided on one side of the outer ring, two arcuate bars being fixedly connected to the protective cover, two arcuate grooves being provided on one side of the outer ring, the arcuate bars being slidably connected to the arcuate grooves, a mounting channel being connected to the mounting channel in a snap-fitting manner with a limiting component, the limiting component being snap-fittingly connected to the protective cover, a sealing ring one and a sealing ring two being snap-fittingly connected to one side of the protective cover, and a sealing ring three being connected to the other side of the outer ring through a baffle.

[0007] As a preferred technical solution of the utility model, the rolling assembly includes a cage, which is rotatably connected to a plurality of tapered balls, a surface of the inner ring is provided with a slideway, and the tapered balls are slidably connected to the inner wall of the outer ring and the slideway.

[0008] As a preferred technical solution of the utility model, the limit assembly includes a clamping sleeve and a limit strip, one side of the clamping sleeve is fixedly provided with a connecting piece, one side of the connecting piece is fixedly connected to the limit strip through a support block, and the limit strip is snap-connected with the installation channel.

[0009] As a preferred technical solution of the utility model, two clamping columns are fixedly provided on the surface of the protective cover, and convex rings are fixedly provided on the surface of the clamping columns, and the clamping columns are clamped and connected with the clamping sleeve through the convex rings.

[0010] As a preferred technical solution of the utility model, a limiting ring is fixedly provided on one side of the protective cover, the sealing ring 1 is snap-connected with the limiting ring, and the sealing ring 1 is located between the outer ring and the protective cover.

[0011] As a preferred technical solution of the utility model, an annular groove is opened on one side of the protective cover, the second sealing ring is snap-connected with the annular groove, the second sealing ring is coaxial with the sealing ring, and the second sealing ring is located between the inner ring and the protective cover.

[0012] As a preferred technical solution of the utility model, the baffle is fixedly connected to the other side of the outer ring, an axial hole is opened in the middle of the baffle, the diameter of the axial hole is larger than the outer diameter of the inner ring, and the axial hole is coaxial with the inner ring.

[0013] As a preferred technical solution of the utility model, a slot is provided on one side of the shaft hole, and the sealing ring three is connected to the baffle plate by snapping through the slot, and the sealing ring three is located between the baffle plate and the inner ring.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The sealed tapered roller bearing can cover one side of the inner ring through the baffle of the outer ring, and the arc strip is placed through the installation channel, which is convenient for sliding and rotating the arc strip into the arc groove. The protective cover is engaged with the outer ring through the limit assembly, which is convenient for quickly installing the protective cover and can ensure the stability and firmness of the protective cover. The protective cover is not easy to fall off and can cover the other side of the inner ring, which is convenient for quickly installing the inner ring and the protective cover. The protective cover and the baffle can limit the sealing ring one, the sealing ring two and the sealing ring three, which can prevent grease leakage and can seal the outer ring.

[0016] 2. The sealed tapered roller bearing can prevent contact friction between the protective cover and the baffle when the inner ring rotates by engaging the protective cover with the outer ring and fixing the baffle with the outer ring, thereby reducing wear of the protective cover and the baffle and improving their durability. The inner ring and the protective cover can be quickly disassembled by removing the limit assembly and sliding the arc bar in the opposite direction to the installation channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural diagrams of the utility model;

[0018] Figure 2 This is the second structural diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the outer ring of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the protective cover of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the limit assembly of the utility model;

[0023] Figure 7 For this utility model Figure 4 A schematic diagram of the enlarged structure at point A;

[0024] Figure 8 For this utility model Figure 5 Schematic diagram of the enlarged structure at B.

[0025] In the figure: 1. Outer ring; 2. Inner ring; 3. Rolling assembly; 301. Cage; 302. Tapered ball; 4. Slide; 5. Protective cover; 6. Arc groove; 7. Arc strip; 8. Limit ring; 9. Sealing ring 1; 10. Clamping column; 11. Convex ring; 12. Limiting assembly; 1201. Clamping sleeve; 1202. Connecting plate; 1203. Support block; 1204. Limiting strip; 13. Annular groove; 14. Sealing ring 2; 15. Baffle; 16. Sealing ring 3; 17. Installation channel; 18. Shaft hole. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] See also Figures 1 to 8 In the embodiment of the utility model, the sealed tapered roller bearing comprises an outer ring 1, an inner ring 2 and a protective cover 5. The outer ring 1 is rotatably connected to the inner ring 2 through a rolling assembly 3. A protective cover 5 is provided on one side of the outer ring 1. The protective cover 5 is fixedly connected to two arc strips 7. Two arc grooves 6 are provided on one side of the outer ring 1. The arc strips 7 are slidably connected to the arc grooves 6. One side of the arc grooves 6 is connected to a mounting channel 17. The mounting channel 17 is snap-connected to a limiting assembly 12. The limiting assembly 12 is snap-connected to the protective cover 5. Through the mounting channel 17 The arc strip 7 is placed to facilitate sliding and rotating the arc strip 7 into the arc groove 6. The protective cover 5 is engaged with the outer ring 1 through the limit assembly 12, which is convenient for quickly installing the protective cover 5 and can ensure the stability and firmness of the protective cover 5. The protective cover 5 is not easy to fall off. One side of the protective cover 5 is respectively engaged with a sealing ring 1 9 and a sealing ring 2 14, and the other side of the outer ring 1 is connected with a sealing ring 3 16 through a baffle 15. The sealing ring 1 9, the sealing ring 2 14 and the sealing ring 3 16 can seal the lubricating grease to prevent the leakage of the lubricating grease.

[0028] In this embodiment, preferably, the rolling assembly 3 includes a cage 301, the cage 301 is rotatably connected with a plurality of tapered balls 302, the surface of the inner ring 2 is provided with a slideway 4, the tapered balls 302 are slidably connected with the inner wall of the outer ring 1 and the slideway 4, the cage 301 can maintain the spacing between the tapered balls 302, and the tapered balls 302 can slide between the outer ring 1 and the inner ring 2;

[0029] In this embodiment, preferably, the limiting assembly 12 includes a ferrule 1201 and a limiting strip 1204, a connecting piece 1202 is fixedly provided on one side of the ferrule 1201, and a limiting strip 1204 is fixedly connected to one side of the connecting piece 1202 through a support block 1203, and the limiting strip 1204 is engaged with the installation channel 17. By engaging the limiting strip 1204 with the installation channel 17, the arc strip 7 can be resisted, and the arc strip 7 can be prevented from loosening, thereby maintaining the stability of the protective cover 5;

[0030] In this embodiment, preferably, two clamping columns 10 are fixedly provided on the surface of the protective cover 5, and a convex ring 11 is fixedly provided on the surface of the clamping column 10. The clamping column 10 is engaged and connected with the clamping sleeve 1201 through the convex ring 11. The clamping column 10 can limit the clamping sleeve 1201 through the convex ring 11 to prevent the clamping sleeve 1201 from falling off;

[0031] In this embodiment, preferably, a limiting ring 8 is fixedly provided on one side of the protective cover 5, and a sealing ring 9 is engaged with the limiting ring 8, and the sealing ring 9 is located between the outer ring 1 and the protective cover 5, and the limiting ring 8 can limit the sealing ring 9;

[0032] In this embodiment, preferably, an annular groove 13 is opened on one side of the protective cover 5, and the second sealing ring 14 is engaged with the annular groove 13, the second sealing ring 14 is coaxial with the first sealing ring 9, and the second sealing ring 14 is located between the inner ring 2 and the protective cover 5. The protective cover 5 can limit the second sealing ring 14 through the annular groove 13;

[0033] In this embodiment, preferably, the baffle 15 is fixedly connected to the other side of the outer ring 1, and an axial hole 18 is opened in the middle of the baffle 15. The diameter of the axial hole 18 is larger than the outer diameter of the inner ring 2. The axial hole 18 is coaxial with the inner ring 2, and a shaft rod can be passed through the axial hole 18.

[0034] In this embodiment, preferably, a card slot is opened on one side of the shaft hole 18, and the sealing ring three 16 is engaged with the baffle 15 through the card slot. The sealing ring three 16 is located between the baffle 15 and the inner ring 2. The baffle 15 can limit the sealing ring three 16 through the card slot, and the sealing ring three 16 can seal between the baffle 15 and the inner ring 2.

[0035] When in use, first assemble the outer ring 1, the inner ring 2 and the rolling assembly 3, then apply grease to the rolling assembly 3, the sealing ring 3 16 can seal between the baffle 15 and the inner ring 2, then put the arc strip 7 of the protective cover 5 into the installation channel 17, and then slide and rotate it into the arc groove 6, and then install the protective cover 5. The protective cover 5 can be sealed between the outer ring 1 and the inner ring 2 through the sealing ring 1 9 and the sealing ring 2 14 to prevent grease leakage;

[0036] After the protective cover 5 is installed, the staff presses the limiting strip 1204 of the limiting assembly 12 into the installation channel 17 to make it engage with the installation channel 17, and then engages the clamping sleeve 1201 with the clamping column 10. The clamping column 10 can limit the clamping sleeve 1201 through the convex ring 11 to prevent it from falling off. The clamping sleeve 1201 can limit the limiting strip 1204 through the connecting piece 1202. After the limiting strip 1204 blocks the inside of the installation channel 17, it can prevent the arc strip 7 from loosening and falling off, and the protective cover 5 can be reinforced;

[0037] When the inner ring 2 rotates by means of the rolling assembly 3, the protective cover 5 is engaged with the outer ring 1, and the baffle 15 is fixedly connected to the outer ring 1, which can prevent the inner ring 2 from generating contact friction with the protective cover 5 and the baffle 15 when rotating, thereby reducing the wear of the protective cover 5 and the baffle 15 and improving their durability;

[0038] When the protective cover 5 needs to be removed, the staff first unplugs the sleeve 1201, lifts the limiting strip 1204 from the inside of the installation channel 17, and then rotates the arc strip 7 from the arc groove 6 to the installation channel 17, stops limiting the arc strip 7, and the protective cover 5 can be quickly removed.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed tapered roller bearing, comprising an outer ring (1), an inner ring (2) and a protective cover (5), characterized in that: The outer ring (1) is rotatably connected to the inner ring (2) through a rolling assembly (3); a protective cover (5) is provided on one side of the outer ring (1); two arc strips (7) are fixedly connected to the protective cover (5); two arc grooves (6) are provided on one side of the outer ring (1); the arc strips (7) are slidably connected to the arc grooves (6); one side of the arc grooves (6) is connected to a mounting channel (17); the mounting channel (17) is snap-connected to a limit assembly (12); the limit assembly (12) is snap-connected to the protective cover (5); one side of the protective cover (5) is snap-connected to a sealing ring 1 (9) and a sealing ring 2 (14); the other side of the outer ring (1) is connected to a sealing ring 3 (16) through a baffle (15).

2. The sealed tapered roller bearing according to claim 1, characterized in that: The rolling assembly (3) comprises a retaining frame (301), the retaining frame (301) being rotatably connected to a plurality of tapered balls (302), a slideway (4) being provided on the surface of the inner ring (2), and the tapered balls (302) being slidably connected to the inner wall of the outer ring (1) and the slideway (4).

3. The sealed tapered roller bearing according to claim 1, characterized in that: The limiting assembly (12) comprises a clamping sleeve (1201) and a limiting strip (1204); a connecting piece (1202) is fixedly provided on one side of the clamping sleeve (1201); one side of the connecting piece (1202) is fixedly connected to the limiting strip (1204) via a supporting block (1203); and the limiting strip (1204) is snap-connected to the installation channel (17).

4. The sealed tapered roller bearing according to claim 3, characterized in that: Two clamping columns (10) are fixedly provided on the surface of the protective cover (5), a convex ring (11) is fixedly provided on the surface of the clamping column (10), and the clamping column (10) is clamped and connected with the clamping sleeve (1201) via the convex ring (11).

5. The sealed tapered roller bearing according to claim 1, characterized in that: A limiting ring (8) is fixedly provided on one side of the protective cover (5), and the sealing ring (9) is snap-fitted and connected to the limiting ring (8). The sealing ring (9) is located between the outer ring (1) and the protective cover (5).

6. The sealed tapered roller bearing according to claim 1, characterized in that: An annular groove (13) is provided on one side of the protective cover (5), and the second sealing ring (14) is snap-fitted and connected to the annular groove (13). The second sealing ring (14) is coaxial with the first sealing ring (9), and the second sealing ring (14) is located between the inner ring (2) and the protective cover (5).

7. The sealed tapered roller bearing according to claim 1, characterized in that: The baffle (15) is fixedly connected to the other side of the outer ring (1), and an axial hole (18) is opened in the middle of the baffle (15). The diameter of the axial hole (18) is larger than the outer diameter of the inner ring (2), and the axial hole (18) is coaxial with the inner ring (2).

8. The sealed tapered roller bearing according to claim 7, characterized in that: A slot is provided on one side of the shaft hole (18), and the sealing ring (16) is connected to the baffle (15) by snapping together through the slot. The sealing ring (16) is located between the baffle (15) and the inner ring (2).

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