Low-friction ball bearing

Abstract

The utility model belongs to the technical field of bearings, and particularly relates to a low-friction ball bearing which comprises a bearing outer ring, the bearing inner ring is arranged on the inner side of the bearing outer ring; the middle ring is arranged between the bearing outer ring and the bearing inner ring, an outer rolling frame is arranged between the bearing outer ring and the middle ring, an inner rolling frame is arranged between the bearing inner ring and the middle ring, two rows of second balls which are correspondingly distributed up and down are arranged in the outer rolling frame, two first inner arc-shaped grooves are formed in the inner wall of the bearing outer ring, and two second inner arc-shaped grooves are formed in the inner wall of the bearing inner ring. And two first outer arc-shaped grooves are formed in the outer wall of the middle ring. The bearing outer ring, the middle ring and the bearing inner ring are arranged, the outer rolling frame is arranged between the bearing outer ring and the middle ring, and the inner rolling frame is arranged between the middle ring and the bearing inner ring, so that the transmission friction force of the bearing is reduced through a dual rolling transmission effect, and the rotation smoothness of the bearing is ensured; the problem that friction resistance is large when a bearing rotates at the present stage is solved.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically to low-friction ball bearings. Background Technology

[0002] Ball bearings are a type of rolling bearing that uses spherical alloy steel balls mounted between an inner and outer steel ring to reduce friction and improve the efficiency of power transmission. They are widely used in mechanical equipment. Currently, ball bearings generally consist of an outer ring, an inner ring, and balls rotatably connected to both rings. The rotation of the balls enables the bearing to rotate. However, current bearing designs are relatively simple, relying on only one layer of balls for rotation. If even a few balls corrode or experience friction, it can affect the smoothness of the bearing's operation, resulting in a high coefficient of friction. Furthermore, friction easily occurs between the balls during operation, further increasing the bearing's friction during use. Therefore, this invention proposes a low-friction ball bearing to address this problem. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a low-friction ball bearing. By configuring an outer ring, an intermediate ring, and an inner ring, with an outer rolling frame between the outer ring and the intermediate ring and an inner rolling frame between the intermediate ring and the inner ring, the transmission friction of the bearing is reduced through a dual rolling transmission action, ensuring smooth rotation of the bearing and solving the problem of high frictional resistance during bearing rotation at present.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A low-friction ball bearing includes: an outer ring; an inner ring disposed inside the outer ring; and an intermediate ring disposed between the outer ring and the inner ring. An outer rolling frame is disposed between the outer ring and the intermediate ring, and an inner rolling frame is disposed between the inner ring and the intermediate ring. The outer rolling frame contains two rows of second balls arranged vertically. The inner wall of the outer ring has two first inner arc-shaped grooves, and the outer wall of the intermediate ring has two first outer arc-shaped grooves. The second balls are adapted to the corresponding first outer arc-shaped grooves and first inner arc-shaped grooves.

[0006] Furthermore, the outer rolling frame also includes an annular body, and the second ball is rotatably connected to the rotating protrusions correspondingly provided on both sides of the annular body.

[0007] Furthermore, a second inner arc-shaped groove is provided on the inner wall of the intermediate ring, and a second outer arc-shaped groove is provided on the outer wall of the bearing inner ring.

[0008] Furthermore, the inner rolling frame includes an upper annular plate and a lower annular plate, and the upper annular plate and the lower annular plate are connected and fixed by a fixing plate. An array of first rolling balls is rotatably connected between the upper annular plate and the lower annular plate, and the first rolling balls are rotatably connected to the second outer arc groove and the second inner arc groove.

[0009] Furthermore, the corners of both the outer and inner rings of the bearing are designed as arc-shaped corners.

[0010] Compared with the prior art, the present invention provides a low-friction ball bearing, which has the following advantages:

[0011] This invention, by setting an outer ring, an intermediate ring, and an inner ring of a bearing, and providing an outer rolling frame between the outer and intermediate rings, and an inner rolling frame between the intermediate and inner rings, with an annular body and a second ball inside the outer rolling frame, and an upper annular plate, a lower annular plate, and a first ball inside the inner rolling frame, can reduce the friction of the entire bearing through a double rolling action during use. This prevents a few balls from rusting or being damaged by friction, thus affecting the operation of the entire bearing, ensuring the smooth operation of the entire bearing, making it suitable for practical use, and enhancing its performance.

[0012] This invention utilizes an upper and lower annular plate within the inner rolling frame to mount the first ball bearing. The first ball bearing is rotatably connected between the upper and lower annular plates, which avoids contact between the balls and makes their rotation smoother and more stable. Furthermore, an annular body is provided within the outer rolling frame, and the second ball bearing is rotatably connected to the rotating protrusion of the annular body. This arrangement of the second ball bearing between the intermediate ring and the outer ring of the bearing ensures stable bearing rotation. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention when disassembled;

[0014] Figure 2 This is a schematic diagram of the inner rolling frame in this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the outer rolling frame in this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of this utility model.

[0017] In the diagram: 1. Bearing outer ring; 2. Intermediate ring; 3. First outer arc groove; 4. Inner rolling frame; 401. Upper annular plate; 402. Fixing plate; 403. Lower annular plate; 404. First ball; 5. Outer rolling frame; 501. Annular body; 502. Rotating protrusion; 503. Second ball; 6. Bearing inner ring; 7. Second outer arc groove; 8. Second inner arc groove; 9. First inner arc groove. Detailed Implementation

[0018] 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. Example

[0019] like Figure 1 , Figure 3 and Figure 4 As shown, a low-friction ball bearing according to an embodiment of the present invention includes: an outer ring 1; an inner ring 6 disposed inside the outer ring 1; and an intermediate ring 2 disposed between the outer ring 1 and the inner ring 6. An outer rolling frame 5 is disposed between the outer ring 1 and the intermediate ring 2, and an inner rolling frame 4 is disposed between the inner ring 6 and the intermediate ring 2. The outer rolling frame 5 is provided with two rows of second balls 503 distributed vertically. Two first inner arc-shaped grooves 9 are formed on the inner wall of the outer ring 1, and two first outer arc-shaped grooves 3 are formed on the outer wall of the intermediate ring 2. The second balls 503 are adapted to the corresponding first outer arc-shaped grooves 3 and first inner arc-shaped grooves 9.

[0020] It should be noted that by setting an intermediate ring 2 between the outer ring 1 and the inner ring 6 of the bearing, the intermediate ring 2 is used for the assembly of the inner rolling frame 4 and the outer rolling frame 5. The outer rolling frame 5 is installed between the outer ring 1 and the intermediate ring 2, and the inner rolling frame 4 is installed between the intermediate ring 2 and the inner ring 6. Both the inner rolling frame 4 and the outer rolling frame 5 have the function of rolling transmission, which can realize the double rolling of the outer ring 1 and the inner ring 6 of the bearing, thereby effectively increasing the smoothness of the bearing and avoiding the impact of a few balls rusting or rubbing on the smoothness of the entire bearing. By setting two rows of second balls 503 in the outer rolling frame 5, each row of second balls 503 is provided with multiple balls. The multiple second balls 503 are adapted to the corresponding first outer arc groove 3 and first inner arc groove 9, so as to realize the stable rotation between the outer ring 1 and the intermediate ring 2 of the bearing, thereby realizing the rotation of the bearing.

[0021] like Figure 3As shown, in some embodiments, the outer rolling frame 5 further includes an annular body 501, and the second ball bearing 503 is rotatably connected to the rotating protrusions 502 correspondingly provided on both sides of the annular body 501.

[0022] It should be noted that by setting the annular body 501, the second ball 503 is rotatably connected to the rotating protrusions 502 corresponding to both sides of the annular body 501. The setting of the annular body 501 enables the second ball 503 to be evenly arranged on the first outer arc groove 3 and the first inner arc groove 9, avoiding contact between the second ball 503 and realizing the stable rotation of the second ball 503.

[0023] like Figure 1 As shown, in some embodiments, a second inner arc-shaped groove 8 is provided on the inner wall of the intermediate ring 2, and a second outer arc-shaped groove 7 is provided on the outer wall of the bearing inner ring 6.

[0024] It should be noted that the second outer arc groove 7 and the second inner arc groove 8 facilitate the assembly of the inner rolling frame 4 and realize the rotational action between the intermediate ring 2 and the bearing inner ring 6.

[0025] like Figure 1 and Figure 2 As shown, in some embodiments, the inner rolling frame 4 includes an upper annular plate 401 and a lower annular plate 403, and the upper annular plate 401 and the lower annular plate 403 are connected and fixed by a fixing plate 402. An array of first rolling balls 404 are rotatably connected between the upper annular plate 401 and the lower annular plate 403. The first rolling balls 404 are rotatably connected to the second outer arc groove 7 and the second inner arc groove 8.

[0026] It should be noted that by setting the upper annular plate 401 and the lower annular plate 403 for the rotational installation of the first ball 404, the first ball 404 is arranged at equal intervals, avoiding contact between the first ball 404 when it is running. The setting of the fixing plate 402 realizes the connection and fixation between the upper annular plate 401 and the lower annular plate 403.

[0027] like Figure 1 and Figure 4 As shown, in some embodiments, the corners of the outer ring 1 and the inner ring 6 of the bearing are both set as arc corners, which makes the overall smoothness of the bearing better and more suitable for practical use.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A low-friction ball bearing, characterized in that, include: Bearing outer ring (1); The bearing inner ring (6) is located inside the bearing outer ring (1); An intermediate ring (2) is disposed between the outer ring (1) and the inner ring (6) of the bearing. An outer rolling frame (5) is disposed between the outer ring (1) and the intermediate ring (2), and an inner rolling frame (4) is disposed between the inner ring (6) and the intermediate ring (2). Two rows of second balls (503) are disposed in the outer rolling frame (5). Two first inner arc grooves (9) are opened on the inner wall of the outer ring (1), and two first outer arc grooves (3) are opened on the outer wall of the intermediate ring (2). The second balls (503) are adapted to the corresponding first outer arc grooves (3) and first inner arc grooves (9).

2. The low-friction ball bearing according to claim 1, characterized in that: The outer rolling frame (5) also includes an annular body (501), and the second ball (503) is rotatably connected to the rotating protrusions (502) correspondingly provided on both sides of the annular body (501).

3. The low-friction ball bearing according to claim 1, characterized in that: The inner wall of the intermediate ring (2) is provided with a second inner arc groove (8), and the outer wall of the bearing inner ring (6) is provided with a second outer arc groove (7).

4. The low-friction ball bearing according to claim 3, characterized in that: The inner rolling frame (4) includes an upper annular plate (401) and a lower annular plate (403), and the upper annular plate (401) and the lower annular plate (403) are connected and fixed by a fixing plate (402). The upper annular plate (401) and the lower annular plate (403) are rotatably connected by an array of first balls (404), and the first balls (404) are rotatably connected to the second outer arc groove (7) and the second inner arc groove (8).

5. The low-friction ball bearing according to claim 1, characterized in that: The corners of the outer ring (1) and inner ring (6) of the bearing are both set as arc corners.

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