Bearing sealing device

Abstract

This utility model discloses a bearing sealing device, belonging to the field of bearing technology. Its key technical features include an inner ring and an outer ring, with multiple rolling balls between them. The upper and lower ends of the outer circumference of the inner ring are each provided with a second limiting groove, and the upper and lower ends of the inner circumference of the outer ring are each provided with a first limiting groove. A sealing cap is placed between the first and second limiting grooves, and a slot is provided on one side of the sealing cap. Pressure caps that engage with the slots are provided on both the upper and lower sides of the inner ring, and the pressure caps are fixed to the inner ring by a locking assembly. This utility model, by providing pressure caps and a sealing cap, allows for easy installation by simply aligning and inserting the sealing cap and pressure cap together. This reduces installation steps and simplifies insertion, improving the convenience of sealing cap installation. The rolling balls reduce friction between the sealing cap, pressure cap, and outer ring, increasing their service life.

Description

Technical Field

[0001] This utility model belongs to the field of bearing technology, specifically relating to bearing sealing devices. Background Technology

[0002] A bearing is a component whose main function is to support rotating mechanical parts, reduce the coefficient of friction during their movement, and ensure their rotational accuracy. To prevent contaminants from entering, maintain the effectiveness of lubricants, and extend the service life of bearings, they are usually sealed.

[0003] A search revealed a Chinese patent with publication number CN218935046U, which discloses a novel bearing sealing device that can prevent the sealing cover from shaking due to friction with the sliding sleeve during bearing rotation. However, since the bearing is annular, its elastic locking block is also annular. The protruding part of the annular block is not easy to directly engage when it is engaged in the locking groove, making the installation of the sealing cover time-consuming and laborious. Utility Model Content

[0004] The purpose of this invention is to provide a bearing sealing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bearing sealing device, comprising an inner ring and an outer ring, with a plurality of balls disposed between the inner ring and the outer ring; a second limiting groove is provided at both the upper and lower ends of the outer circumference of the inner ring, and a first limiting groove is provided at both the upper and lower ends of the inner circumference of the outer ring; a sealing cover is placed between the first limiting groove and the second limiting groove; a slot is provided on one side of the sealing cover; and pressure caps are provided on both the upper and lower sides of the inner ring, which are inserted into the slots, and the pressure caps are fixed to the inner ring by a locking assembly.

[0006] As a further embodiment of this utility model, the locking assembly includes multiple threaded holes on the upper and lower sides of the inner ring, with countersunk screws threaded into the threaded holes. Countersunk holes penetrating the pressure caps are provided on the opposite sides of the two pressure caps, and the countersunk screws pass through the countersunk holes.

[0007] As a further embodiment of this utility model, a first annular groove is provided on one side of the outer wall of each of the two sealing caps, and two second annular grooves are provided on the other side. A sealing ring is placed in both the first annular groove and the second annular groove.

[0008] As a further embodiment of this utility model, the contact surfaces of the two sealing caps and the pressure caps are provided with multiple first mounting grooves, and the contact surfaces with the outer ring are provided with multiple second mounting grooves. Rolling balls are placed in both the first mounting grooves and the second mounting grooves.

[0009] As a further embodiment of this invention, both the first limiting groove and the second limiting groove are stepped.

[0010] As a further embodiment of this invention, the cross-section of the gland is L-shaped.

[0011] As a further embodiment of this invention, the top of the countersunk screw is flush with the top of the countersunk hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model has a pressure cap and a sealing cap. The sealing cap can be installed simply by aligning and inserting the sealing cap and the pressure cap. The installation steps are few and the insertion is simple, which improves the convenience of installing the sealing cap.

[0014] 2. By providing a stepped first limiting groove and a second limiting groove, this utility model can increase the contact area between the sealing cover and the first limiting groove and the second limiting groove, thereby increasing the sealing performance between the sealing cover and the inner and outer rings. At the same time, by utilizing the height difference, the sealing performance of the sealing cover can be further increased.

[0015] 3. This utility model reduces friction between the sealing cap, pressure cap, and outer ring by incorporating a ball bearing, thereby increasing the service life of the sealing cap, pressure cap, and outer ring. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This is a partial sectional view of the present invention.

[0019] In the diagram: 1. Inner ring; 2. Pressure cap; 3. Sealing cap; 4. Outer ring; 5. Countersunk screw; 6. Countersunk hole; 7. Slot; 8. Ball bearing; 9. Threaded hole; 10. First limiting groove; 11. Second limiting groove; 12. First mounting groove; 13. First annular groove; 14. Second annular groove; 15. Second mounting groove; 16. Sealing ring; 17. Ball bearing. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-3This utility model provides a bearing sealing device, including an inner ring 1 and an outer ring 4. Multiple balls 8 are provided between the inner ring 1 and the outer ring 4. The inner ring 1, outer ring 4, and balls 8 combine to form a bearing, a conventional structure, which will not be elaborated upon further. The upper and lower ends of the outer circumference of the inner ring 1 are provided with second limiting grooves 11, and the upper and lower ends of the inner circumference of the outer ring 4 are provided with first limiting grooves 10. A sealing cover 3 is placed between the first limiting groove 10 and the second limiting groove 11. Both the first limiting groove 10 and the second limiting groove 11 are stepped, which increases the contact area between the sealing cover 3 and the first limiting groove 10 and the second limiting groove 11, thereby increasing the sealing performance between the sealing cover 3 and the inner ring 1 and the outer ring 4. Simultaneously, the height difference further increases the sealing performance of the sealing cover 3. The sealing cap 3 has a slot 7 on one side, and pressure caps 2 on both the upper and lower sides of the inner ring 1 that fit into the slot 7. The pressure caps 2 have an L-shaped cross-section, so that one end of the pressure caps 2 can be inserted into the slot 7 and limit the sealing cap 3. The pressure caps 2 and the inner ring 1 are fixed together by a locking assembly. When sealing between the inner ring 1 and the outer ring 4, the two sealing caps 3 are respectively inserted into the first limiting groove 10 and the second limiting groove 11 on both sides of the inner ring 1 and the outer ring 4. Then, one end of the pressure cap 2 is inserted into the slot 7 and fixed with the locking assembly, thereby completing the installation of the sealing cap 3. The installation of the sealing cap 3 can be completed simply by aligning and inserting the sealing cap 3 and the pressure cap 2. The installation steps are few and the insertion is simple, which improves the convenience of installing the sealing cap 3.

[0022] In this utility model, the locking assembly includes multiple threaded holes 9 on the upper and lower sides of the inner ring 1. A countersunk screw 5 is threaded into the threaded hole 9. Countersunk holes 6 penetrating the pressure cover 2 are provided on the opposite sides of the two pressure covers 2. The countersunk screw 5 passes through the countersunk hole 6, and the top of the countersunk screw 5 is flush with the top of the countersunk hole 6, which can reduce the protrusion of the bearing. After the pressure cover 2 is inserted into the slot 7, the countersunk screw 5 is used to pass through the countersunk hole 6 and then screwed into the threaded hole 9, so that the top of the countersunk screw 5 is flush with the top of the countersunk hole 6, thus completing the fixation of the pressure cover 2 and enabling the pressure cover 2 to be installed quickly.

[0023] The two sealing caps 3 each have a first annular groove 13 on one side of their outer wall and two second annular grooves 14 on the other side. A sealing ring 16 is placed in both the first and second annular grooves 13 to increase the sealing performance of the sealing cap 3 in contact with the inner ring 1 and the outer ring 4. The two sealing caps 3 each have multiple first mounting grooves 12 in contact with the pressure cap 2 and multiple second mounting grooves 15 in contact with the outer ring 4. A ball 17 is placed in both the first and second mounting grooves 12 to reduce the friction between the sealing cap 3 and the pressure cap 2 and the outer ring 4, thereby increasing the service life of the sealing cap 3, the pressure cap 2, and the outer ring 4.

[0024] The working principle of this utility model is as follows: When sealing between the inner ring 1 and the outer ring 4, the two sealing caps 3 are respectively inserted into the first limiting groove 10 and the second limiting groove 11 on both sides of the inner ring 1 and the outer ring 4. Then, one end of the pressure cap 2 is inserted into the slot 7. The countersunk screw 5 is passed through the countersunk hole 6 and screwed into the threaded hole 9 so that the top of the countersunk screw 5 is flush with the top of the countersunk hole 6, thus completing the fixing of the pressure cap 2 and completing the installation of the sealing cap 3. The installation of the sealing cap 3 can be completed simply by aligning and inserting the sealing cap 3 with the pressure cap 2. The installation steps are few and the insertion is simple, which improves the convenience of installing the sealing cap 3.

[0025] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0026] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bearing sealing device, comprising an inner ring (1) and an outer ring (4), wherein a plurality of balls (8) are provided between the inner ring (1) and the outer ring (4), characterized in that: The inner ring (1) has a second limiting groove (11) at both the upper and lower ends of its outer circumference wall, and the outer ring (4) has a first limiting groove (10) at both the upper and lower ends of its inner circumference wall. A sealing cover (3) is placed between the first limiting groove (10) and the second limiting groove (11). A slot (7) is provided on one side of the sealing cover (3). The inner ring (1) has a pressure cover (2) on both the upper and lower sides that can be inserted into the slot (7). The pressure cover (2) is fixed to the inner ring (1) by a locking assembly.

2. The bearing seal apparatus of claim 1, wherein: The locking assembly includes multiple threaded holes (9) on the upper and lower sides of the inner ring (1), and countersunk screws (5) are threaded into the threaded holes (9). Countersunk holes (6) penetrating the pressure caps (2) are provided on the opposite sides of the two pressure caps (2), and the countersunk screws (5) pass through the countersunk holes (6).

3. The bearing seal apparatus of claim 1, wherein: The outer wall of each of the two sealing caps (3) is provided with a first annular groove (13) on one side and two second annular grooves (14) on the other side. A sealing ring (16) is placed in both the first annular groove (13) and the second annular groove (14).

4. The bearing sealing device according to claim 1, characterized in that: Multiple first mounting grooves (12) are provided on the contact surfaces of the two sealing caps (3) and the pressure cap (2), and multiple second mounting grooves (15) are provided on the contact surfaces with the outer ring (4). Rolling balls (17) are placed in the first mounting grooves (12) and the second mounting grooves (15).

5. The bearing seal apparatus of claim 2, wherein: Both the first limiting groove (10) and the second limiting groove (11) are stepped.

6. The bearing seal apparatus of claim 5, wherein: The cross-section of the pressure cap (2) is L-shaped.

7. The bearing seal apparatus of claim 2, wherein: The top of the countersunk screw (5) is flush with the top of the countersunk hole (6).

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