High-sealing self-aligning roller bearing

Abstract

The utility model relates to the field of bearings, and discloses a high-sealing self-aligning roller bearing which comprises a static ring, a movable ring is arranged on the inner side of the static ring, a retainer is arranged between the static ring and the movable ring, and the left portion and the right portion of the retainer are movably connected with a plurality of roller bodies. Two sealing elements are arranged between the static ring and the moving ring, the two sealing elements are respectively arranged at the left and right parts of the static ring and the moving ring, the sealing elements comprise a first sealing ring and a second sealing ring, the first sealing ring is movably connected with the static ring, the second sealing ring is movably connected with the moving ring, and the first sealing ring is movably connected with the moving ring. The first sealing ring comprises a first sealing ring body. According to the utility model, the static ring and the moving ring as well as the first sealing ring and the second sealing ring are matched with each other, so that the structure of the sealing element of the bearing is more stable, the sealing element is not easy to change due to external force during use, the sealing performance of the bearing can be effectively ensured, and the bearing is more practical.

Description

Technical Field

[0001] This utility model relates to the field of bearings, and in particular to a high-sealing self-aligning roller bearing. Background Technology

[0002] A bearing is a mechanical component used to support and guide rotating parts, reduce friction and wear, and improve mechanical efficiency. Its main function is to bear loads and allow parts to rotate or move freely between their surfaces. Sealed self-aligning roller bearings are a special type of bearing that combines the advantages of self-aligning roller bearings and sealed design. Sealed self-aligning roller bearings are widely used in heavy-duty and harsh environments.

[0003] A search revealed Chinese Patent Publication No. CN219013183U, which discloses a high-precision sealed self-aligning roller bearing belonging to the field of bearing technology. The bearing includes an outer ring, one side of which engages with the side corresponding to a first sealing ring, and the other side of which engages with the side corresponding to a second sealing ring. An arc-shaped groove is formed on the side of the second sealing ring, and an arc-shaped plate is slidably connected within the groove. One side of the arc-shaped plate is fixedly connected to the end corresponding to a spring. This high-precision sealed self-aligning roller bearing, through the arrangement of a positioning pin, a groove, a retaining plate, an arc-shaped plate, and a spring, allows the first and second sealing rings to be stably fixed on both sides of the outer ring via the cooperation of the groove, retaining plate, and spring. This improves the sealing performance of the self-aligning roller bearing, preventing airborne contaminants from entering and damaging it, thus effectively ensuring the service life of the bearing.

[0004] Although the aforementioned bearing, through the cooperation of the slot, the retaining plate, and the spring, allows the first and second sealing rings to be stably fixed on both sides of the outer ring, the bearing is generally mounted on the shaft that needs to move. This means that the spring inside the bearing will inevitably vibrate due to external forces during bearing use, thus affecting the sealing performance between the sealing ring and the bearing. Furthermore, its open arc groove makes it easy for foreign objects to enter the arc groove, affecting the normal use of the spring and making it impractical. Therefore, a high-sealing self-aligning roller bearing is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a high-sealing self-aligning roller bearing, which aims to improve the existing technology where the spring inside the bearing inevitably produces noise and vibration due to external forces during bearing use, thus affecting the sealing performance between the sealing ring and the bearing. Furthermore, the open arc groove design makes it easy for foreign objects to enter the arc groove, affecting the normal use of the spring.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-sealing self-aligning roller bearing, comprising a stationary ring, a moving ring disposed inside the stationary ring, a cage disposed between the stationary ring and the moving ring, multiple roller bodies movably connected to the left and right sides of the cage, and two seals disposed between the stationary ring and the moving ring, the two seals being disposed on the left and right sides of the stationary ring and the moving ring respectively, the seals comprising a first seal ring and a second seal ring, the first seal ring being movably connected to the stationary ring, and the second seal ring being movably connected to the moving ring.

[0007] As a further description of the above technical solution:

[0008] The first sealing ring includes a first sealing ring, and a first fixing ring is fixedly connected to the outer side of the first sealing ring.

[0009] As a further description of the above technical solution:

[0010] A collar is fixedly connected to the inner side of the first sealing ring, and a retaining ring is fixedly connected to the inner side of the collar.

[0011] As a further description of the above technical solution:

[0012] The first sealing ring also includes a first skeleton, which is fixedly connected to the side of the first sealing ring near the roller body.

[0013] As a further description of the above technical solution:

[0014] The second sealing ring includes a second sealing ring, with a second fixing ring fixedly connected to the inner side of the second sealing ring and a convex ring fixedly connected to the outer side of the second sealing ring.

[0015] As a further description of the above technical solution:

[0016] The second sealing ring also includes a second skeleton, and the side of the second skeleton closest to the roller body is fixedly connected to the second skeleton.

[0017] As a further description of the above technical solution:

[0018] The inner wall of the stationary ring has a first annular groove on both the left and right sides, and the first fixed ring is movably connected to it.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the moving ring is provided with a second annular groove on both the left and right sides. The second fixed ring is movably connected to the second annular groove. A limit groove is provided in the middle of the outer wall of the moving ring, and multiple roller bodies are movably connected to it.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting the static ring and the moving ring, as well as the mutual cooperation between the No. 1 sealing ring and the No. 2 sealing ring, the structure of the bearing sealing element is more stable and less prone to change due to external forces during use, which can effectively ensure the sealing performance of the bearing and make it more practical.

[0023] 2. In this utility model, by setting a first sealing ring and a second sealing ring, as well as the mutual cooperation between the collar, retaining ring and convex ring, the two sealing rings do not need to contact each other directly, which can effectively reduce the friction during the use of the bearing, and at the same time improve the sealing effect of the bearing, making it more practical. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a high-sealing self-aligning roller bearing proposed in this utility model;

[0025] Figure 2 This is a cross-sectional three-dimensional structural diagram of a high-sealing self-aligning roller bearing proposed in this utility model;

[0026] Figure 3 This is an enlarged three-dimensional structural diagram of point A of a high-sealing self-aligning roller bearing proposed in this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram showing the disassembled structure of a high-sealing self-aligning roller bearing proposed in this utility model.

[0028] Figure 5 This is a three-dimensional structural diagram of the right side of the seal of a high-sealing self-aligning roller bearing proposed in this utility model.

[0029] Figure 6 This is a three-dimensional structural diagram of the left side of the seal of a high-sealing self-aligning roller bearing proposed in this utility model.

[0030] Legend:

[0031] 1. Stationary ring; 2. Moving ring; 3. Seal; 4. Cage; 5. Roller body; 31. No. 1 sealing ring; 32. No. 2 sealing ring; 311. No. 1 sealing ring; 312. Collar ring; 313. Retaining ring; 314. No. 1 fixing ring; 315. No. 1 skeleton; 321. No. 2 sealing ring; 322. Convex ring; 323. No. 2 fixing ring; 324. No. 2 skeleton; 11. No. 1 ring groove; 21. No. 2 ring groove; 22. Limiting groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 and Figure 4 This utility model provides an embodiment of a high-sealing self-aligning roller bearing, comprising a stationary ring 1, a moving ring 2 disposed on the inner side of the stationary ring 1 for connecting with rotating shafts and other components of machinery, a cage 4 disposed between the stationary ring 1 and the moving ring 2 for mounting multiple roller bodies 5 and for connecting with the stationary ring 1 and the moving ring 2, multiple roller bodies 5 being movably connected to the left and right sides of the cage 4 for use with the bearing and for self-aligning the bearing, and two seals 3 disposed between the stationary ring 1 and the moving ring 2 to improve the sealing performance of the bearing, the two seals 3 being disposed on the left and right sides of the stationary ring 1 and the moving ring 2 respectively.

[0034] like Figure 5 - Figure 6 As shown, the sealing element 3 includes a first sealing ring 31 and a second sealing ring 32. The two sealing rings are not in direct contact. The first sealing ring 31 is movably connected to the stationary ring 1 through the first annular groove 11. The second sealing ring 32 is movably connected to the moving ring 2 through the second annular groove 21.

[0035] Please see Figure 2 - Figure 3 The inner wall of the stationary ring 1 has a first annular groove 11 on both the left and right sides, which is used to connect with the first fixed ring 314 to facilitate the installation of the first sealing ring 31. The first fixed ring 314 is movably connected to it. The outer wall of the moving ring 2 has a second annular groove 21 on both the left and right sides, which is used to connect with the second fixed ring 323 to facilitate the installation of the second sealing ring 32. The second fixed ring 323 is movably connected to the second annular groove 21. The outer wall of the moving ring 2 has a limit groove 22 in the middle, and multiple roller bodies 5 are movably connected to it.

[0036] Furthermore, the first sealing ring 31 includes a first sealing ring 311, which is used to connect the various components and to cooperate with the second sealing ring 321. A first fixing ring 314 is fixedly connected to the outer side of the first sealing ring 311, which can undergo a certain degree of deformation and is used to cooperate in the connection and fixation between the first sealing ring 31 and the stationary ring 1. A collar 312 is fixedly connected to the inner side of the first sealing ring 311, which is sleeved on the side of the convex ring 322 away from the roller. It does not directly contact the convex ring 322, leaving a gap between them. The approximately 0.2mm gap ensures both no friction and a tight seal, preventing external contamination inside the bearing. A retaining ring 313 is fixedly connected to the inner side of the collar 312, and a gap of approximately 0.2mm is also left between it and the second sealing ring 321. The first sealing ring 31 also includes a first skeleton 315, which can be made of metal and is annular, used to improve the stability of the first sealing ring 31. The first skeleton 315 is fixedly connected to the first sealing ring 311 on the side near the roller body 5.

[0037] Furthermore, the second sealing ring 32 includes a second sealing ring 321, which is used to cooperate with the first sealing ring 311 to ensure the sealing of the bearing. The inner side of the second sealing ring 321 is fixedly connected to a second fixing ring 323, which can produce a certain degree of deformation and is used to cooperate the connection between the second sealing ring 32 and the moving ring 2. The outer side of the second sealing ring 321 is fixedly connected to a convex ring 322, which is used to cooperate with the collar 312 to improve the sealing performance of the bearing. The second sealing ring 32 also includes a second skeleton 324, which can be made of metal and is annular, and is used to improve the sealing stability of the second sealing ring 32. The side of the second skeleton 324 closest to the roller body 5 is fixedly connected to the second skeleton 324.

[0038] Working principle: During use, when assembling the bearing, first, the cage 4 is placed over the outside of the moving ring 2. Then, multiple roller bodies 5 are mounted on the cage 4, and the stationary ring is placed over the outside of the multiple roller bodies 5. Next, the second retaining ring 323 on the second sealing ring 32 is inserted into the second ring groove 21. When inserted into the second ring groove 21, the second retaining ring 323 will deform to a certain extent. After it is fully inserted into the second ring groove 21, the second retaining ring 323 will return to its original position, thus fixing the second sealing ring 32 to the moving ring 2. Simultaneously, the second frame 324 will provide support for the second sealing ring 321. Then, the first sealing ring... The first retaining ring 314 on the sealing ring 31 is inserted into the first ring groove 11 in the stationary ring 1. During the process of the first retaining ring 314 being inserted into the first ring groove 11, the first retaining ring 314 will undergo a certain degree of deformation. After it is fully inserted into the first ring groove 11, the first retaining ring 314 will return to being inserted into the first ring groove 11, thereby fixing the first sealing ring 31 to the stationary ring 1. The first frame 315 will provide support for the first sealing ring 311. When installing the first sealing ring 31, it is necessary to ensure that the collar 312 is fitted outside the convex ring 322. After the first sealing ring 31 and the second sealing ring 32 are installed, the assembly of the entire bearing can be completed.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-sealing self-aligning roller bearing, comprising a stationary ring (1), characterized in that: A moving ring (2) is provided on the inner side of the stationary ring (1). A retainer (4) is provided between the stationary ring (1) and the moving ring (2). Roller bodies (5) are movably connected to the left and right sides of the retainer (4), and there are multiple of them. A seal (3) is provided between the stationary ring (1) and the moving ring (2), and there are two of them. The two seals (3) are respectively provided on the left and right sides of the stationary ring (1) and the moving ring (2). The seal (3) includes a first seal ring (31) and a second seal ring (32). The first seal ring (31) is movably connected to the stationary ring (1), and the second seal ring (32) is movably connected to the moving ring (2).

2. The high-sealing self-aligning roller bearing according to claim 1, characterized in that: The first sealing ring (31) includes a first sealing ring (311), and a first fixing ring (314) is fixedly connected to the outer side of the first sealing ring (311).

3. A high-sealing self-aligning roller bearing according to claim 2, characterized in that: A collar (312) is fixedly connected to the inner side of the first sealing ring (311), and a retaining ring (313) is fixedly connected to the inner side of the collar (312).

4. A high-sealing self-aligning roller bearing according to claim 2, characterized in that: The first sealing ring (31) also includes a first skeleton (315), which is fixedly connected to the first sealing ring (311) on the side near the roller body (5).

5. A high-sealing self-aligning roller bearing according to claim 1, characterized in that: The second sealing ring (32) includes a second sealing ring (321), a second fixing ring (323) is fixedly connected to the inner side of the second sealing ring (321), and a convex ring (322) is fixedly connected to the outer side of the second sealing ring (321).

6. A high-sealing self-aligning roller bearing according to claim 5, characterized in that: The second sealing ring (32) also includes a second skeleton (324), which is fixedly connected to the side of the second skeleton (324) near the roller body (5).

7. A high-sealing self-aligning roller bearing according to claim 2, characterized in that: The inner wall of the stationary ring (1) has a first annular groove (11) on both the left and right sides, and the first fixed ring (314) is movably connected to it.

8. A high-sealing self-aligning roller bearing according to claim 5, characterized in that: The outer wall of the moving ring (2) is provided with a second annular groove (21) on both the left and right sides. The second fixed ring (323) is movably connected to the second annular groove (21). A limit groove (22) is provided in the middle of the outer wall of the moving ring (2), and multiple roller bodies (5) are movably connected to it.

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