Low-noise bearing sealing structure

Abstract

The utility model relates to the technical field of bearings, in particular to a low-noise bearing sealing structure which comprises an outer ring, an inner ring and balls arranged between the outer ring and the inner ring, a first ring groove is formed in the surface of the outer ring, a second ring groove is formed in the surface of the inner ring, and sealing covers are arranged on the surfaces of the outer ring and the inner ring. The clamping blocks in the sliding grooves are inserted into the clamping grooves in the sealing cover under the elastic force effect of the springs, the purpose of fixing the sealing cover is achieved, the sealing cover can be stably installed on the bearing, the possibility that the sealing cover falls off due to vibration and other reasons is avoided, the sealing effect on the bearing is affected, and meanwhile the pushing plate is pushed, so that the sealing cover is fixed. And when the push plate slides in the first limiting groove to be aligned with the second limiting groove, the push plate is pushed into the second limiting groove, the clamping block is separated from the interior of the clamping groove, fixing of the sealing cover is relieved, and the sealing cover can be rapidly detached and replaced conveniently.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a low-noise bearing sealing structure. Background Technology

[0002] Bearings are a common component in modern machinery. The working environment of bearings is usually filled with various impurities that can affect their operation, such as powder, water vapor, and dust. To prevent these impurities from entering the bearing and affecting its operation, and to prevent the leakage of lubricating grease inside the bearing, existing bearings are usually equipped with a sealing structure.

[0003] To enhance the sealing effect, existing bearings typically have dust covers clipped onto the side of the bearing. However, these dust covers are usually made of hard materials such as metal, requiring a certain amount of force to install. Furthermore, there is a lack of effective fixation for the dust cover, which makes it possible for the dust cover to fall off during use due to vibration or other reasons, thus affecting the sealing effect of the bearing. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose a low-noise bearing sealing structure.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a low-noise bearing sealing structure, including an outer ring, an inner ring, and balls disposed between the outer ring and the inner ring. The outer ring has a first annular groove on its surface, and the inner ring has a second annular groove on its surface. Sealing caps are provided on the surfaces of the outer and inner rings. The edges of the sealing caps are respectively engaged within the first annular groove and the second sliding groove. A sliding groove is provided inside the outer ring, with one end of the sliding groove communicating with the first annular groove. A locking block is slidably connected inside the sliding groove. A spring is fixedly connected to the surface of the locking block, and the other end of the spring is fixedly connected to the inner wall of the sliding groove. A slot is provided on the surface of the sealing cap, and the locking block is inserted into the slot. A square block is fixedly connected to the surface of the locking block, and a push plate is provided on the top of the square block.

[0006] Preferably, there are two sets of card blocks, and the two sets of card blocks are symmetrically distributed on both sides of the middle part of the outer ring surface.

[0007] Preferably, the surface of the push plate is fixedly connected with anti-slip protrusions, which are evenly distributed on the surface of the push plate.

[0008] Preferably, the surface of the card block is provided with an inclined slope, which faces the outside of the first annular groove.

[0009] Preferably, the outer ring has a limiting groove 1 and a limiting groove 2 on its surface, the limiting groove 1 and the limiting groove 2 are connected, the push plate has a T-shaped groove on its surface, and a T-shaped rod is fixedly connected to the top of the block, the T-shaped rod is slidably connected inside the T-shaped groove.

[0010] Preferably, a limiting rod is fixedly connected to the surface of the sealing cover, and a guide groove is formed on the surface of the first annular groove, with the limiting rod being engaged inside the guide groove.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the locking block in the sliding groove is inserted into the slot on the sealing cover under the elastic force of the spring, thereby achieving the purpose of fixing the sealing cover. This allows the sealing cover to be stably installed on the bearing, reducing the possibility of the sealing cover falling off due to vibration or other reasons, which would affect the sealing effect on the bearing. At the same time, by pushing the push plate, when the push plate slides in the first limiting groove and aligns with the second limiting groove, the push plate is pushed into the interior of the second limiting groove, and the locking block disengages from the interior of the slot, releasing the fixing of the sealing cover and facilitating the quick disassembly and replacement of the sealing cover.

[0013] 2. In this utility model, the limiting rod on the sealing cover is inserted into the guide groove on the inner wall of the first ring groove. When installing the sealing cover, the slot on the sealing cover can be quickly aligned with the port of the sliding groove, thereby improving the convenience of inserting the card block into the slot and improving the working efficiency of fixing the sealing cover. Attached Figure Description

[0014] Figure 1 This utility model provides a schematic diagram of a low-noise bearing sealing structure.

[0015] Figure 2 An exploded view of a low-noise bearing sealing structure is provided in this utility model.

[0016] Figure 3 This utility model proposes a low-noise bearing sealing structure. Figure 3 Enlarged view of point A in the middle;

[0017] Figure 4 This is a partially exploded schematic diagram of a low-noise bearing sealing structure proposed in this utility model.

[0018] Legend:

[0019] 1. Outer ring; 2. Inner ring; 3. Ball bearing; 4. Sealing cap; 5. First annular groove; 6. Second annular groove; 7. Slot; 8. Limiting rod; 9. Guide groove; 10. Slide groove; 11. Locking block; 12. Spring; 13. Square block; 14. T-shaped rod; 15. Push plate; 16. T-shaped groove; 17. Anti-slip protrusion; 18. Inclined surface; 19. Limiting groove one; 20. Limiting groove two. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a low-noise bearing sealing structure, including an outer ring 1, an inner ring 2, and balls 3 disposed between the outer ring 1 and the inner ring 2. A first annular groove 5 is formed on the surface of the outer ring 1, and a second annular groove 6 is formed on the surface of the inner ring 2. Sealing caps 4 are provided on the surfaces of the outer ring 1 and the inner ring 2. The edges of the sealing caps 4 are respectively engaged within the first annular groove 5 and the second sliding groove 10. A sliding groove 10 is formed inside the outer ring 1, with one end of the sliding groove 10 communicating with the first annular groove 5. A locking block 11 is slidably connected inside the sliding groove 10, and a fixedly connected surface is provided on the surface of the locking block 11. Spring 12, the other end of spring 12 is fixedly connected to the inner wall of slide groove 10, the surface of sealing cover 4 is provided with slot 7, the slot 11 is inserted into the slot 7, the surface of slot 11 is fixedly connected with block 13, the top of block 13 is provided with push plate 15, there are two sets of slot 11, the two sets of slot 11 are symmetrically distributed on both sides of the middle of the surface of outer ring 1, the surface of push plate 15 is fixedly connected with anti-slip protrusion 17, the anti-slip protrusion 17 is evenly distributed on the surface of push plate 15, the surface of slot 11 is provided with inclined slope 18, the inclined slope 18 faces the outside of the first ring groove 5.

[0023] In this embodiment, the locking block 11 in the slide groove 10 is inserted into the locking groove 7 on the sealing cover 4 under the elastic force of the spring 12, thereby fixing the sealing cover 4. This ensures that the sealing cover 4 can be stably installed on the bearing, reducing the possibility of the sealing cover 4 falling off due to vibration or other reasons, which would affect the sealing effect on the bearing. At the same time, by pushing the push plate 15, when the push plate 15 slides in the first limiting groove 19 and aligns with the second limiting groove 20, the push plate 15 is pushed into the interior of the second limiting groove 20, and the locking block 11 disengages from the interior of the locking groove 7, releasing the fixing of the sealing cover 4 and facilitating quick disassembly of the sealing cover 4. The two sets of symmetrically distributed locking blocks 11 ensure that the sealing cover 4 is subjected to uniform force, guaranteeing consistent circumferential sealing pressure and avoiding the risk of local leakage due to uneven force. At the same time, it enhances the impact resistance of the sealing structure. The anti-slip protrusions 17 on the surface of the push plate 15 increase the friction, which can increase the friction between the fingers and the push plate 15 when pushing the push plate 15, and avoid slippage. The inclined surface 18 design allows the sealing cover 4 to automatically squeeze the locking blocks 11 to retract during installation, which can be completed without additional tools, simplifying the assembly process, reducing production costs, and ensuring that the locking blocks 11 can quickly reset and lock after installation.

[0024] Example 2: Figure 3 - Figure 4 As shown, the outer ring 1 has a limiting groove 19 and a limiting groove 20 on its surface, and the limiting groove 19 and the limiting groove 20 are connected. The push plate 15 has a T-shaped groove 16 on its surface. The top of the block 13 is fixedly connected to a T-shaped rod 14, which is slidably connected inside the T-shaped groove 16. The sealing cover 4 has a limiting rod 8 fixedly connected to its surface. The first ring groove 5 has a guide groove 9 on its surface, and the limiting rod 8 is locked inside the guide groove 9.

[0025] In this embodiment, when the push plate 15 is pushed and aligned with the second limiting groove 20, the push plate 15 is pushed to lock inside the second limiting groove 20 to fix and limit the locking block 11, which further facilitates the removal of the sealing cover 4 from the bearing. By inserting the limiting rod 8 on the sealing cover 4 into the guide groove 9 on the inner wall of the first annular groove 5, the locking groove 7 on the sealing cover 4 can be quickly aligned with the port of the slide groove 10 when the sealing cover 4 is installed, thereby improving the convenience of inserting the locking block 11 into the locking groove 7 and improving the working efficiency of fixing the sealing cover 4.

[0026] The working principle of this embodiment is as follows: During use, the edge of the sealing cover 4 is aligned with the first annular groove 5 of the outer ring 1 and the second annular groove 6 of the inner ring 2, and pushed in along the direction of the guide groove 9. The limiting rod 8 on the sealing cover 4 is inserted into the guide groove 9 on the inner wall of the first annular groove 5, preventing the sealing cover 4 from rotating. This allows the slot 7 on the sealing cover 4 to quickly align with the port of the slide groove 10, thereby improving the convenience of inserting the locking block 11 into the slot 7 and improving the efficiency of fixing the sealing cover 4. The sealing cover 4 presses against the inclined surface 18 of the locking block 11, causing the locking block 11 to retract into the slide groove 10 against the force of the spring 12. When the sealing cover 4 is fully in place, the slot 7 is aligned with the locking block 11, and the spring 12 pushes the locking block 11 to pop out and lock into the slot 7. The sealing cover 4 is locked. When the sealing cover 4 is removed, the push plate 15 is pushed and slides in the limiting groove 19. When the push plate 15 is aligned with the limiting groove 20, the push plate 15 is pushed. The T-shaped groove 16 on the push plate 15 cooperates with the T-shaped rod 14 on the block 13, so that the push plate 15 can slide into the limiting groove 20. At the same time, the locking block 11 disengages from the locking groove 7, and then the sealing cover 4 can be removed. In the whole process, the sealing cover 4 and the inner and outer rings 1 form a labyrinth sealing path through tight cooperation, which effectively blocks the entry of external impurities and prevents the leakage of internal lubricating grease. At the same time, the bearing adopts a high-precision manufacturing process to ensure that the geometric size and shape error of the bearing are minimized, thereby reducing vibration and noise.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A low-noise bearing sealing structure, comprising an outer ring (1), an inner ring (2), and balls (3) disposed between the outer ring (1) and the inner ring (2), characterized in that: The outer ring (1) has a first annular groove (5) on its surface, and the inner ring (2) has a second annular groove (6) on its surface. The outer ring (1) and the inner ring (2) are provided with sealing caps (4). The edges of the sealing caps (4) are respectively locked inside the first annular groove (5) and the second sliding groove (10). The outer ring (1) has a sliding groove (10) inside its surface. One end of the sliding groove (10) is connected to the first annular groove (5). A locking block (11) is slidably connected inside the sliding groove (10). A spring (12) is fixedly connected to the surface of the locking block (11). The other end of the spring (12) is fixedly connected to the inner wall of the sliding groove (10). The sealing cap (4) has a locking groove (7) on its surface. The locking block (11) is inserted into the locking groove (7). A block (13) is fixedly connected to the surface of the locking block (11). A push plate (15) is provided on the top of the block (13).

2. The low-noise bearing sealing structure according to claim 1, characterized in that: There are two sets of the card blocks (11), and the two sets of card blocks (11) are symmetrically distributed on both sides of the middle part of the surface of the outer ring (1).

3. The low-noise bearing sealing structure according to claim 1, characterized in that: The surface of the push plate (15) is fixedly connected with anti-slip protrusions (17), which are evenly distributed on the surface of the push plate (15).

4. The low-noise bearing sealing structure according to claim 1, characterized in that: The surface of the card block (11) is provided with an inclined slope (18) facing the outside of the first annular groove (5).

5. The low-noise bearing sealing structure according to claim 1, characterized in that: The outer ring (1) has a limiting groove 1 (19) and a limiting groove 2 (20) on its surface. The limiting groove 1 (19) and the limiting groove 2 (20) are connected. The push plate (15) has a T-shaped groove (16) on its surface. The top of the block (13) is fixedly connected to a T-shaped rod (14), which is slidably connected inside the T-shaped groove (16).

6. The low-noise bearing sealing structure according to claim 1, characterized in that: A limiting rod (8) is fixedly connected to the surface of the sealing cover (4), and a guide groove (9) is provided on the surface of the first annular groove (5). The limiting rod (8) is engaged inside the guide groove (9).

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