Deep groove ball bearing with lubricant overflow prevention structure

Abstract

The utility model belongs to the technical field of deep groove ball bearings, and particularly relates to a deep groove ball bearing with a lubricant overflow prevention structure, which comprises a bearing body, an outer ring, an inner ring, a retainer and steel balls, the outer ring is arranged on the outer surface of the bearing body, the inner ring is positioned on the inner side of the outer ring, the retainer is rotatably positioned between the outer ring and the inner ring, and the steel balls are arranged on the retainer. The steel balls are arranged on the retainer at equal intervals, and steel sealing cover plates are movably arranged on the surfaces of the two sides of the bearing body. The sealing effect of the bearing body can be improved by adopting the sealing cover plate, meanwhile, the arc-shaped fixing hoop can be arranged on the surface of the retainer, the fixing bolt and the thread corresponding hole coincide, the steel sealing cover plate and the rubber sealing cover plate can be fixed to the retainer through threaded connection of the fixing bolt and the thread corresponding hole, and the bearing is convenient to use. The steel sealing cover plate and the rubber sealing cover plate can be conveniently disassembled and assembled, deformation of the steel sealing cover plate and the rubber sealing cover plate during disassembly and assembly is avoided, and then the lubricant is added to avoid overflow of the lubricant.

Description

Technical Field

[0001] This utility model relates to the field of deep groove ball bearing technology, specifically a deep groove ball bearing with a structure to prevent lubricant overflow. Background Technology

[0002] Deep groove ball bearings are suitable for high-speed and even extremely high-speed operation, and are very durable, requiring minimal maintenance. These bearings have a low coefficient of friction, high limiting speed, and come in a variety of sizes and forms. They are used in precision instruments, low-noise motors, automobiles, motorcycles, and general machinery, making them one of the most widely used types of bearings in the machinery industry. They primarily bear radial loads but can also withstand a certain amount of axial load. Deep groove ball bearings have dust seals on both sides, made of stamped steel, which simply prevent dust from entering the bearing raceway. Oil-proof types use contact oil seals, effectively preventing grease from leaking out of the bearing.

[0003] Existing deep groove ball bearings with anti-lubricant overflow structures use sealing covers to seal the lubricant on both sides. When adding lubricant, the sealing covers need to be pried out, which can easily cause deformation. After reinstallation, the seals on both sides of the deep groove ball bearing may not be properly sealed, and lubricant may overflow. To solve the above problems, this application proposes a deep groove ball bearing with an anti-lubricant overflow structure. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes a deep groove ball bearing with a lubricant overflow prevention structure. By using a sealing cover plate, the sealing effect of the bearing body can be improved. At the same time, the arc-shaped fixing hoop can be placed on the surface of the cage, and the fixing bolts and corresponding threaded holes coincide. By connecting the fixing bolts and corresponding threaded holes, the steel sealing cover plate and the rubber sealing cover plate can be fixed on the cage, which can facilitate the disassembly and assembly of the steel sealing cover plate and the rubber sealing cover plate and prevent deformation of the steel sealing cover plate and the rubber sealing cover plate during disassembly and assembly. Furthermore, the addition of lubricant prevents lubricant overflow, thereby solving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides a deep groove ball bearing with a lubricant overflow prevention structure, including a bearing body, an outer ring, an inner ring, a cage, and steel balls. The outer ring is located on the outer surface of the bearing body, the inner ring is located inside the outer ring, the cage is rotatably located between the outer ring and the inner ring, the steel balls are equidistantly arranged on the cage, and steel sealing plates are movably provided on both sides of the bearing body. The inner wall surface of the steel sealing plates is provided with rubber sealing plates.

[0008] The inner wall of the rubber sealing cover is provided with arc-shaped fixing hoops at the positions corresponding to the steel balls;

[0009] Both the steel sealing cover and the rubber sealing cover are fitted with sealing rings at their edges. The inner wall surface of the outer ring and the outer wall surface of the inner ring are provided with sealing grooves, and the sealing rings are engaged with the sealing grooves.

[0010] Preferably, after the steel sealing cover and the rubber sealing cover are fixed to the sealing groove, the arc-shaped fixing hoop engages with the surface of the retainer.

[0011] Preferably, the steel sealing cover plate has fixing bolts at positions corresponding to the steel ball, and the fixing bolts pass through the rubber sealing cover plate and the arc-shaped fixing hoop cavity wall respectively.

[0012] Preferably, the surface of the retainer is provided with threaded holes corresponding to the positions of the fixing bolts, and the fixing bolts are threadedly connected to the threaded holes.

[0013] Preferably, heat dissipation grooves are formed on both sides of the outer ring outer wall and both sides of the inner ring outer wall, and the heat dissipation grooves are located on one side of the sealing groove.

[0014] Preferably, a number of connecting conduits are equidistantly provided in the inner and outer ring cavity walls, and all the connecting conduits are right-angled structures.

[0015] Preferably, one end of the connecting conduit is electrically connected to the sealing groove, and the end of the connecting conduit away from the sealing groove is electrically connected to the inner wall of the outer ring and the outer wall of the inner ring.

[0016] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0017] 1. This utility model improves the sealing effect of the bearing body by using a sealing cover plate. At the same time, the arc-shaped fixing hoop can be used on the surface of the cage. The fixing bolts and the corresponding threaded holes coincide. By connecting the fixing bolts and the corresponding threaded holes, the steel sealing cover plate and the rubber sealing cover plate can be fixed on the cage. This facilitates the disassembly and assembly of the steel sealing cover plate and the rubber sealing cover plate and prevents deformation of the steel sealing cover plate and the rubber sealing cover plate during disassembly and assembly. Furthermore, the addition of lubricant prevents lubricant from overflowing.

[0018] 2. In this utility model, the lubricant can enter the sealing groove through the connecting conduit, and the connection between the sealing ring and the sealing groove is sealed, which makes the bearing body rotate more flexibly. At the same time, the lubricant can lubricate the connection between the sealing ring and the sealing groove to reduce heat generation, and the heat dissipation groove can dissipate heat at the connection between the sealing ring and the sealing groove, thereby improving the heat dissipation effect of the bearing body during rotation and making the bearing body suitable for high-speed applications. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a deep groove ball bearing with a lubricant overflow prevention structure according to the present invention;

[0020] Figure 2 This is a schematic diagram of the bearing body structure of a deep groove ball bearing with a lubricant overflow prevention structure according to the present invention;

[0021] Figure 3 This is an exploded view of the installation structure of the steel sealing cover and rubber sealing cover of a deep groove ball bearing with a lubricant overflow prevention structure according to the present invention.

[0022] Figure 4 This is a schematic cross-sectional view of the sealing ring structure of a deep groove ball bearing with a lubricant overflow prevention structure according to the present invention.

[0023] Figure 5 This is a schematic cross-sectional view of the bearing body of a deep groove ball bearing with a structure to prevent lubricant overflow, according to the present invention.

[0024] Figure label:

[0025] 1. Bearing body; 2. Outer ring; 3. Inner ring; 4. Cage; 5. Steel ball; 6. Sealing groove; 7. Sealing ring; 8. Steel sealing cover; 9. Rubber sealing cover; 10. Arc-shaped fixing hoop; 11. Fixing bolt; 12. Corresponding threaded hole; 13. Heat dissipation groove; 14. Connecting conduit. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0027] like Figure 1-5 As shown, the present invention proposes a deep groove ball bearing with a lubricant overflow prevention structure, comprising a bearing body 1, an outer ring 2, an inner ring 3, a cage 4, and steel balls 5. The outer ring 2 is disposed on the outer surface of the bearing body 1, the inner ring 3 is located inside the outer ring 2, the cage 4 is rotatably located between the outer ring 2 and the inner ring 3, and the steel balls 5 are equidistantly disposed on the cage 4. Steel sealing plates 8 are movably disposed on both sides of the bearing body 1, and rubber sealing plates 9 are disposed on the inner wall surface of the steel sealing plates 8. After the steel sealing plates 8 and the rubber sealing plates 9 are fixed to the sealing groove 6, the arc-shaped fixing hoop 10 is engaged with the surface of the cage 4.

[0028] The inner wall of the rubber sealing cover plate 9 is provided with arc-shaped fixing hoops 10 at the positions corresponding to the steel ball 5;

[0029] Both the steel sealing cover plate 8 and the rubber sealing cover plate 9 are movably fitted with sealing rings 7 at their edges. The inner wall surface of the outer ring 2 and the outer wall surface of the inner ring 3 are both provided with sealing grooves 6, and the sealing rings 7 are engaged with the sealing grooves 6.

[0030] It should be noted that the steel sealing cover plate 8 and the rubber sealing cover plate 9 are fitted together, and the sealing ring 7 is respectively snapped into the edges of the steel sealing cover plate 8 and the rubber sealing cover plate 9. The sealing ring 7 is snapped into the sealing groove 6. At this time, the arc-shaped fixing hoop 10 can be on the surface of the cage 4. The sealing ring 7 can provide a surface seal at the connection between the steel sealing cover plate 8 and the rubber sealing cover plate 9. This can reduce dust from entering the inner cavity of the bearing body 1 during use, and also prevent lubricating oil from overflowing. After removing the fixing bolt 11, the hook can be inserted into the fixing hole of the fixing bolt 11 to quickly remove the steel sealing cover plate 8 and the rubber sealing cover plate 9. This prevents the steel sealing cover plate 8 and the rubber sealing cover plate 9 from deforming when they are lifted, and facilitates the addition of lubricant.

[0031] In this embodiment, as Figure 2 and Figure 3 As shown, the steel sealing cover plate 8 is provided with a fixing bolt 11 at the position corresponding to the position of the steel ball 5. The fixing bolt 11 passes through the cavity wall of the rubber sealing cover plate 9 and the arc-shaped fixing hoop 10 respectively. The surface of the retainer 4 is provided with threaded corresponding holes 12 at the positions corresponding to the positions of the fixing bolts 11. The fixing bolts 11 are threadedly connected to the threaded corresponding holes 12.

[0032] It should be noted that the fixing bolt 11 coincides with the threaded hole 12. By connecting the fixing bolt 11 with the threaded hole 12, the steel sealing cover 8 and the rubber sealing cover 9 can be fixed on the retainer 4.

[0033] In this embodiment, as Figure 1 and Figure 2 As shown, heat dissipation grooves 13 are provided on both sides of the outer wall of the outer ring 2 and both sides of the outer wall of the inner ring 3, and the heat dissipation grooves 13 are located on one side of the sealing groove 6.

[0034] It should be noted that the heat dissipation groove 13 can dissipate heat at the connection between the sealing ring 7 and the sealing groove 6, thereby improving the heat dissipation effect of the bearing body 1 during rotation and making the bearing body 1 suitable for high-speed applications.

[0035] In this embodiment, as Figure 5As shown, several sets of connecting conduits 14 are equidistantly arranged in the cavity walls of the outer ring 2 and the inner ring 3. All connecting conduits 14 are right-angled structures. One end of the connecting conduit 14 is connected to the sealing groove 6, and the end of the connecting conduit 14 away from the sealing groove 6 is connected to the inner wall of the outer ring 2 and the outer wall of the inner ring 3.

[0036] It should be noted that the inner cavity of the bearing body 1 is connected to the sealing groove 6 through the connecting conduit 14. The lubricant can enter the sealing groove 6 through the connecting conduit 14, and the lubricant can play a role in lubrication and heat dissipation at the connection between the sealing ring 7 and the sealing groove 6.

[0037] The working principle and usage process of this utility model are as follows: The steel sealing cover plate 8 and the rubber sealing cover plate 9 are attached together, and the sealing ring 7 is respectively snapped into the edges of the steel sealing cover plate 8 and the rubber sealing cover plate 9. The sealing ring 7 is snapped into the sealing groove 6. At this time, the arc-shaped fixing hoop 10 can be on the surface of the cage 4. The fixing bolt 11 coincides with the threaded hole 12. By connecting the fixing bolt 11 with the threaded hole 12, the steel sealing cover plate 8 and the rubber sealing cover plate 9 can be fixed on the cage 4. The sealing ring 7 can provide a surface seal at the connection between the steel sealing cover plate 8 and the rubber sealing cover plate 9, which can reduce dust from entering the inner cavity of the bearing body 1 during use, and also prevent lubricating oil from overflowing. After removing the fixing bolt 11, the hook is inserted into the fixing bolt. The steel sealing cover plate 8 and the rubber sealing cover plate 9 can be quickly disassembled through the fixing hole of bolt 11 to prevent deformation when they are tilted up, and to facilitate the addition of lubricant. The inner cavity of the bearing body 1 is connected to the sealing groove 6 through the connecting conduit 14. Lubricant can enter the sealing groove 6 through the connecting conduit 14. The sealing ring 7 is sealed at the connection with the sealing groove 6, which makes the bearing body 1 rotate more flexibly. At the same time, the lubricant can lubricate the connection between the sealing ring 7 and the sealing groove 6 to reduce heat generation. The heat dissipation groove 13 can dissipate heat at the connection between the sealing ring 7 and the sealing groove 6 to improve the heat dissipation effect of the bearing body 1 during rotation, making the bearing body 1 suitable for high-speed applications.

[0038] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims or their equivalents.

Claims

1. A deep groove ball bearing with a lubricant overflow prevention structure, comprising a bearing body (1), an outer ring (2), an inner ring (3), a retainer (4) and steel balls (5), wherein the outer ring (2) is arranged on the outer surface of the bearing body (1), the inner ring (3) is located inside the outer ring (2), the retainer (4) is rotatably located between the outer ring (2) and the inner ring (3), and the steel balls (5) are equidistantly arranged on the retainer (4), characterized in that: Steel sealing cover plates (8) are movably provided on both side surfaces of the bearing body (1), and rubber sealing cover plates (9) are provided on the inner wall surfaces of the steel sealing cover plates (8); The inner wall of the rubber sealing cover plate (9) and the position corresponding to the steel ball (5) are both provided with an arc-shaped fixing hoop (10); The edges of the steel sealing cover plate (8) and the rubber sealing cover plate (9) are both movably sleeved with sealing rings (7), the inner wall surface of the outer ring (2) and the outer wall surface of the inner ring (3) are both provided with sealing grooves (6), and the sealing rings (7) are snap-fitted with the sealing grooves (6).

2. A deep groove ball bearing with a lubricant overflow prevention structure according to claim 1, characterized in that: After the steel sealing cover plate (8) and the rubber sealing cover plate (9) are fixed to the sealing groove (6), the arc-shaped fixing hoop (10) is clamped to the surface of the retaining frame (4).

3. The deep groove ball bearing with a lubricant overflow prevention structure according to claim 2, characterized in that: A fixing bolt (11) is provided on the surface of the steel sealing cover plate (8) at a position corresponding to the position of the steel ball (5), and the fixing bolt (11) penetrates the cavity wall of the rubber sealing cover plate (9) and the arc-shaped fixing hoop (10) respectively.

4. The deep groove ball bearing with a lubricant overflow prevention structure according to claim 3, characterized in that: Threaded holes (12) are provided at positions on the surface of the retaining frame (4) corresponding to the positions of the fixing bolts (11), and the fixing bolts (11) are threadedly connected to the threaded holes (12).

5. The deep groove ball bearing with a lubricant overflow prevention structure according to claim 1, characterized in that: Both side surfaces of the outer wall of the outer ring (2) and both side surfaces of the outer wall of the inner ring (3) are provided with heat dissipation grooves (13), and the heat dissipation grooves (13) are located on one side of the sealing groove (6).

6. The deep groove ball bearing with a lubricant overflow prevention structure according to claim 5, characterized in that: A plurality of groups of connecting ducts (14) are equidistantly provided in the cavity walls of the outer ring (2) and the inner ring (3), and the connecting ducts (14) are all of right-angle structures.

7. The deep groove ball bearing with a lubricant overflow prevention structure according to claim 6, characterized in that: One end of the connecting conduit (14) is conductively connected to the sealing groove (6), and one end of the connecting conduit (14) away from the sealing groove (6) is conductively connected to the inner wall of the outer ring (2) and the outer wall of the inner ring (3).

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