Mute deep groove ball bearing

Abstract

The utility model relates to the technical field of bearings, in particular to a mute deep groove ball bearing, which comprises an inner ring, an outer ring, a retainer and a ball, the ball is arranged in the retainer, the retainer is positioned between the inner ring and the outer ring, and dust covers are arranged between the inner ring and the outer ring on the left side and the right side of the retainer. The bearing overcomes the defects in the prior art, lubricating liquid between the inner ring and the outer ring can enter the oil storage cavity through the oil inlet hole, and redundant lubricating liquid can be adsorbed into the oil storage cavity through the oil absorption cotton block in the oil storage cavity; when the retainer is in a rotating state, lubricating liquid stored in the oil storage cavity can be discharged outwards from the oil discharge hole under the action of centrifugal force and used for lubrication, the lubricating liquid flowing through the oil discharge hole needs to penetrate through the oil filter screen to be sieved, impurities carried in the lubricating liquid are separated, and therefore the influence of the impurities on bearing operation is reduced, and the service life of the bearing is prolonged. And the bearing is more silent.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a silent deep groove ball bearing. Background Art

[0002] Deep groove ball bearing, formerly known as radial ball bearing, is a rolling bearing with a deep groove in which the ball rolls to achieve relative motion between the inner and outer rings. It is the first type of rolling bearing to be introduced and is also the most widely used type.

[0003] The characteristics of deep groove ball bearings include low friction resistance and high speed. They can be used on parts that bear radial loads or combined loads of radial and axial loads at the same time, and can also be used on parts that bear axial loads. Their application range is very wide, such as low-power motors, automobile and tractor gearboxes, machine tool gearboxes, general machines and tools, etc.

[0004] When the bearing lacks lubrication, abnormal noise will be generated during the rotation of the bearing. At the same time, impurities mixed inside the bearing during the rotation will also generate noise during the use of the bearing, thereby affecting the normal use of the bearing. For this reason, a silent deep groove ball bearing is proposed. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a silent deep groove ball bearing, which overcomes the deficiencies of the prior art and solves the problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a silent deep groove ball bearing, comprising an inner ring, an outer ring, a retaining frame and balls, characterized in that: the balls are arranged and installed inside the retaining frame, the retaining frame is located between the inner ring and the outer ring, and dust covers are arranged and installed between the inner ring and the outer ring on the left and right sides of the retaining frame.

[0007] The dust cover can be used to fill the space between the inner ring and the outer ring to prevent external impurities from passing through the space between the inner ring and the outer ring and causing internal noise.

[0008] As a preferred technical solution of the utility model, the inner ring and the outer ring are concentrically arranged, an annular guide groove is formed on the side of the inner ring and the outer ring close to each other, and the structural dimensions of the annular guide groove and the ball are adapted.

[0009] The dust cover can be easily installed and used through the annular guide grooves on the inner ring and the outer ring.

[0010] As a preferred technical solution of the utility model, an oil storage cavity is evenly formed on the retaining frame, an oil inlet hole is penetrated through the inner bottom surface of the oil storage cavity, oil discharge holes are penetrated through the left and right sides of the inner wall of the oil storage cavity, an oil-absorbing cotton block is arranged inside the oil storage cavity, and oil filter nets are arranged at the left and right ends of the oil-absorbing cotton block.

[0011] The lubricating liquid between the inner ring and the outer ring can enter the oil storage chamber through the oil inlet hole, and can absorb the excess lubricating liquid into the oil storage chamber with the help of the oil-absorbing cotton block inside the oil storage chamber. When the retaining frame is rotating, the lubricating liquid stored in the oil storage chamber can be discharged outward from the oil drain hole under the action of centrifugal force for lubrication. The lubricating liquid flowing through the oil drain hole needs to be screened through the oil filter to separate the impurities carried in the lubricating liquid, thereby reducing the impact of impurities on the operation of the bearing and making the bearing quieter.

[0012] As a preferred technical solution of the utility model, an annular clamping block 1 is formed on the periphery of the dust cover, an annular clamping block 2 is formed on the side of the dust cover away from the outer ring, a clamping groove matched with the annular clamping block 1 is formed on the inner side of the outer ring, and a sealing cavity is formed between the outer ring and the annular clamping block 2.

[0013] The annular clamp block 1 can be adapted and installed with the clamping groove on the inner side of the outer ring, reducing the gap to prevent dust from entering and preventing lubricating fluid from leaking. The annular clamp block 2 can further improve the sealing effect.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The lubricating liquid between the inner ring and the outer ring can enter the oil storage chamber through the oil inlet hole, and the excess lubricating liquid can be absorbed into the inside with the help of the oil-absorbing cotton block inside the oil storage chamber. When the retaining frame is rotating, the lubricating liquid stored in the oil storage chamber can be discharged outward from the oil drain hole under the action of centrifugal force for lubrication. The lubricating liquid flowing through the oil drain hole needs to be screened through the oil filter to separate the impurities carried in the lubricating liquid, thereby reducing the impact of impurities on the operation of the bearing and making the bearing quieter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 It is a front view schematic diagram of the utility model;

[0018] Figure 3 For the utility model Figure 2 Schematic diagram of the cross section at BB;

[0019] Figure 4 It is a schematic diagram of a retainer of the utility model;

[0020] Figure 5 For the utility model Figure 4 Partial schematic diagram at point A in the middle;

[0021] Figure 6 For the utility model Figure 3 Partial schematic diagram at point B in the middle.

[0022] In the figure: 1. Inner ring; 2. Outer ring; 3. Cage; 301. Oil storage chamber; 302. Oil inlet hole; 303. Oil drain hole; 4. Ball; 5. Dust cover; 501. Annular block 1; 502. Annular block 2; 6. Oil absorbing cotton block; 7. Oil filter. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 A silent deep groove ball bearing comprises an inner ring 1, an outer ring 2, a retainer 3 and balls 4. The balls 4 are arranged and installed inside the retainer 3. The retainer 3 is located between the inner ring 1 and the outer ring 2. Dust covers 5 are arranged and installed between the inner ring 1 and the outer ring 2 on the left and right sides of the retainer 3. The dust covers 5 can be used to fill the space between the inner ring 1 and the outer ring 2 to prevent external impurities from entering the interior through the space between the inner ring 1 and the outer ring 2 and causing noise.

[0025] Specifically, the inner ring 1 and the outer ring 2 are concentrically arranged, and an annular guide groove is formed on the side where the inner ring 1 and the outer ring 2 are close to each other, and the structural dimensions of the annular guide groove and the ball 4 are adapted to each other. The dust cover 5 can be easily installed and used through the annular guide grooves on the inner ring 1 and the outer ring 2.

[0026] Specifically, an oil storage cavity 301 is evenly formed on the retaining frame 3, an oil inlet hole 302 is penetrated through the inner bottom surface of the oil storage cavity 301, and oil discharge holes 303 are penetrated through the left and right sides of the inner wall of the oil storage cavity 301, an oil-absorbing cotton block 6 is arranged inside the oil storage cavity 301, and an oil filter net 7 is arranged on the left and right ends of the oil-absorbing cotton block 6. The lubricating fluid between the inner ring 1 and the outer ring 2 can enter the interior of the oil storage cavity 301 through the oil inlet hole 302, and can absorb the excess lubricating fluid into the interior with the help of the oil-absorbing cotton block 6 inside the oil storage cavity 301. When the retaining frame 3 is in the rotating state, the lubricating fluid stored in the oil storage cavity 301 can be discharged outward from the oil discharge hole 303 under the action of centrifugal force for lubrication. The lubricating fluid flowing through the oil discharge hole 303 needs to pass through the oil filter net 7 for sieving, and the impurities carried in the lubricating fluid are partially separated, thereby reducing the influence of impurities on the operation of the bearing, making the bearing quieter.

[0027] Specifically, an annular clamping block 1 501 is formed on the periphery of the dust cover 5, an annular clamping block 2 502 is formed on the side of the dust cover 5 away from the outer ring 2, a groove matched with the annular clamping block 1 501 is formed on the inner side of the outer ring 2, and a sealing cavity is formed between the outer ring 2 and the annular clamping block 2 502. The annular clamping block 1 501 can be adapted and installed with the groove on the inner side of the outer ring 2 to reduce the gap to prevent dust from entering and prevent lubricating fluid from leaking. The annular clamping block 2 502 can further improve the sealing effect.

[0028] Working principle: the lubricating fluid between the inner ring 1 and the outer ring 2 can enter the oil storage chamber 301 through the oil inlet hole 302, and can absorb the excess lubricating fluid into the oil storage chamber 301 with the help of the oil-absorbing cotton block 6 inside the oil storage chamber 301. When the retaining frame 3 is rotating, the lubricating fluid stored in the oil storage chamber 301 can be discharged outward from the oil discharge hole 303 under the action of centrifugal force for lubrication. The lubricating fluid flowing through the oil discharge hole 303 needs to be screened through the oil filter 7 to separate the impurities carried in the lubricating fluid, thereby reducing the impact of the impurities on the bearing operation and making the bearing quieter. The dust cover 5 can be used to fill the space between the inner ring 1 and the outer ring 2 to prevent external impurities from entering the space between the inner ring 1 and the outer ring 2 and causing noise. The annular clamp 1 501 can be adapted and installed with the clamping groove on the inner side of the outer ring 2 to reduce the gap to prevent dust from entering and at the same time prevent lubricating fluid from leaking. The annular clamp 2 502 can further improve the sealing effect.

[0029] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A silent deep groove ball bearing, comprising an inner ring (1), an outer ring (2), a cage (3) and balls (4), characterized in that: The ball (4) is arranged and installed inside the retaining frame (3), and the retaining frame (3) is located between the inner ring (1) and the outer ring (2). Dust covers (5) are arranged and installed between the inner ring (1) and the outer ring (2) on the left and right sides of the retaining frame (3).

2. A silent deep groove ball bearing according to claim 1, characterized in that: The inner ring (1) and the outer ring (2) are arranged concentrically, and an annular guide groove is formed on one side of the inner ring (1) and the outer ring (2) close to each other, and the structural dimensions of the annular guide groove and the ball (4) are matched.

3. The silent deep groove ball bearing according to claim 1, characterized in that: The retaining frame (3) is evenly formed with an oil storage cavity (301), the inner bottom surface of the oil storage cavity (301) is penetrated with an oil inlet hole (302), and the left and right sides of the inner wall of the oil storage cavity (301) are penetrated with oil discharge holes (303).

4. A silent deep groove ball bearing according to claim 3, characterized in that: An oil-absorbing cotton block (6) is arranged inside the oil storage cavity (301), and oil filter nets (7) are arranged at both left and right ends of the oil-absorbing cotton block (6).

5. The silent deep groove ball bearing according to claim 1, characterized in that: An annular clamping block 1 (501) is formed on the periphery of the dust cover (5), and an annular clamping block 2 (502) is formed on the side of the dust cover (5) away from the outer ring (2).

6. The silent deep groove ball bearing according to claim 1, characterized in that: A clamping groove matched with the annular clamping block 1 (501) is formed on the inner side of the outer ring (2), and a sealing cavity is formed between the outer ring (2) and the annular clamping block 2 (502).

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