Deep groove ball bearing convenient to disassemble and assemble

Abstract

The deep groove ball bearing convenient to disassemble and assemble comprises an inner ring, an outer ring, a retainer and a plurality of steel balls, the steel balls are arranged between the inner ring and the outer ring, the retainer is sleeved on the steel balls, a plurality of threaded holes are formed in the end face of the outer ring, and screws penetrate through the threaded holes to be in threaded connection with an external machine base. And the outer ring is further mounted on an external engine base. According to the deep groove ball bearing convenient to disassemble and assemble, disclosed by the utility model, the end part of the outer ring can be mounted on an external machine base in a manner that the screws penetrate through the threaded holes in a manner that the threaded holes are formed in the end surface of the outer ring.

Description

Technical Field

[0001] The utility model relates to a deep groove ball bearing, more particularly to a deep groove ball bearing which is easy to assemble and disassemble. Background Art

[0002] In conventional bearing installation, the outer ring generally mates with the housing through the outer diameter, and the inner ring mates with the shaft through the inner diameter. However, in some cases, such as when radial space is insufficient or the radial direction is not suitable for the housing, and the side of the bearing happens to have a seat or other part suitable for fixing the bearing, the bearing can be fixed from the end face rather than fixing it by the outer diameter. However, there is currently no deep groove ball bearing structure that is well suitable for fixing from the end face in the existing technology. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a deep groove ball bearing that can be effectively fixed from the end face and is easy to assemble and disassemble.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a deep groove ball bearing that is easy to disassemble and assemble, comprising an inner ring, an outer ring, a retaining frame and a plurality of steel balls, wherein the plurality of steel balls are arranged between the inner ring and the outer ring, and the retaining frame is sleeved on the steel balls, and is characterized in that a plurality of threaded holes are provided on the end face of the outer ring, which are threadedly connected to the external machine base by screws passing through the threaded holes, and then the outer ring is installed on the external machine base.

[0005] As a further improvement of the present invention, it also includes a first sealing ring and a second sealing ring, which are respectively installed on the inner ring wall of the outer ring close to the end face, and the inner rings of the first sealing ring and the second sealing ring are both formed with sealing tongues, which are against the outer ring wall of the inner ring to form a sealing structure.

[0006] As a further improvement of the present invention, a groove with an arc-shaped cross-section is provided in the middle position of the inner ring wall of the outer ring, and two sealing grooves are respectively provided near the two ends of the inner ring wall of the outer ring. The outer side walls of the first sealing ring and the second sealing ring are respectively inserted into the two sealing grooves, and the groove walls of the two sealing grooves on the side facing away from the groove are provided with rounded corners near the groove opening, and the groove wall and the groove bottom of the sealing groove are inclined to transition.

[0007] As a further improvement of the present invention, metal rings are embedded in both the first sealing ring and the second sealing ring.

[0008] The beneficial effect of the present invention is that by opening a plurality of threaded holes on the end face of the outer ring, during the process of installing the bearing, there is no need to match the outer diameter of the outer ring with the housing. Instead, the end face of the screw is passed through the threaded hole and connected to the external machine base through a thread, thereby realizing the installation of the bearing on the external machine base through the end face installation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of the deep groove ball bearing that is easy to disassemble and assemble according to the utility model being installed on an external machine base;

[0010] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0011] Figure 3 for Figure 1 Schematic diagram of cross section (1) and end face (2) of the middle and outer rings;

[0012] Figure 4 for Figure 3 Enlarged view of part B in the middle. DETAILED DESCRIPTION

[0013] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0014] Reference Figures 1 to 4 As shown, a deep groove ball bearing that is easy to disassemble and assemble in this embodiment includes an inner ring 1, an outer ring 2, a retainer 3 and a plurality of steel balls 4. The plurality of steel balls 4 are arranged between the inner ring 1 and the outer ring 2, and the retainer 3 is sleeved on the steel balls 4. It is characterized in that: a plurality of threaded holes 5 are opened on the end surface of the outer ring 2, and screws are passed through the threaded holes 5 and then threadedly connected to the external machine base, and then the outer ring 2 is installed on the external machine base. In the process of using the bearing of this embodiment, it is only necessary to pass the screws through the threaded holes 5 and then drill them into the machine base to achieve The outer ring 2 is installed on the machine base. Compared with the methods in the prior art, this method is well suited for occasions where radial space is insufficient. The threaded holes 5 in this embodiment are generally provided with 8, 10 or 12, and the corresponding screws are mostly special screws. The principle is to fix the bearing reliably and prevent it from loosening during operation. The pitch and precision of the thread must be high so that there is no looseness or spacing when fixing the bearing. The bearing is fixed from the end face with 10 screws, and the outer diameter is fixed without limit, so the tolerance and precision of the outer diameter can be low.

[0015] As an improved specific embodiment, it also includes a first sealing ring 6 and a second sealing ring 7. The first sealing ring 6 and the second sealing ring 7 are respectively installed on the inner ring wall of the outer ring 2 near the end face, and the inner rings of the first sealing ring 6 and the second sealing ring 7 are formed as sealing tongues, which are against the outer ring wall of the inner ring 1 to form a sealing structure. Through the arrangement of the first sealing ring 6 and the second sealing ring 7, the end face sealing effect of the inner ring 1 and the outer ring 2 can be achieved simply and effectively.

[0016] As a specific embodiment of the improvement, a groove 21 with an arc-shaped cross-section is provided in the middle position of the inner ring wall of the outer ring 2, and two sealing grooves 22 are respectively provided at the positions near the two ends of the inner ring wall of the outer ring 2. The outer side walls of the first sealing ring 6 and the second sealing ring 7 are respectively inserted into the two sealing grooves 22. The groove walls of the two sealing grooves 22 on the side facing away from the groove 21 are provided with rounded corners near the groove openings, and the groove walls and the groove bottoms of the sealing grooves 22 are inclined to transition. By setting the two sealing grooves 22, a space for embedding the first sealing ring 6 and the second sealing ring 7 can be effectively provided. At the same time, the groove walls on the side facing away from the groove 21 are provided with rounded corners and inclined transitions, which can further facilitate the sliding installation of the first sealing ring 6 and the second sealing ring 7 from the end face of the outer ring 2, thereby further increasing the convenience of disassembly and assembly of the bearing.

[0017] As an improved specific embodiment, metal rings are embedded in the first sealing ring 6 and the second sealing ring 7. The setting of the metal rings can effectively increase the rigidity of the first sealing ring 6 and the second sealing ring 7, so that the first sealing ring 6 and the second sealing ring 7 have a better sealing effect.

[0018] In summary, the deep groove ball bearing of this embodiment, which is easy to disassemble and assemble, can be simply and effectively installed on the external machine base by screws passing through the threaded holes 5 by opening a plurality of threaded holes 5 on the end face of the outer ring 2, thereby achieving the installation of the end of the outer ring 2.

[0019] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A deep groove ball bearing that is easy to disassemble and assemble, comprising an inner ring (1), an outer ring (2), a retainer (3) and a plurality of steel balls (4), wherein the plurality of steel balls (4) are arranged between the inner ring (1) and the outer ring (2), and the retainer (3) is sleeved on the steel balls (4), characterized in that: The end surface of the outer ring (2) is provided with a plurality of threaded holes (5), and screws are passed through the threaded holes (5) and then threadedly connected to the external machine base, thereby installing the outer ring (2) on the external machine base.

2. The deep groove ball bearing that is easy to disassemble and assemble according to claim 1, characterized in that: The invention also includes a first sealing ring (6) and a second sealing ring (7), wherein the first sealing ring (6) and the second sealing ring (7) are respectively installed on the inner ring wall of the outer ring (2) near the end face, and the inner rings of the first sealing ring (6) and the second sealing ring (7) are both formed with sealing tongues, which are pressed against the outer ring wall of the inner ring (1) to form a sealing structure.

3. The deep groove ball bearing that is easy to disassemble and assemble according to claim 2, characterized in that: A channel (21) with an arc-shaped cross section is provided in the middle of the inner ring wall of the outer ring (2), and two sealing grooves (22) are respectively provided at positions close to both ends of the inner ring wall of the outer ring (2). The outer side walls of the first sealing ring (6) and the second sealing ring (7) are respectively installed in the two sealing grooves (22). The groove walls of the two sealing grooves (22) on the side facing away from the channel (21) are provided with rounded corners near the groove openings, and the groove walls and the groove bottoms of the sealing grooves (22) are inclined to transition.

4. The deep groove ball bearing that is easy to disassemble and assemble according to claim 3, characterized in that: Metal rings are embedded in both the first sealing ring (6) and the second sealing ring (7).

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