A sealed and waterproof deep groove ball bearing

Abstract

The utility model discloses a sealed waterproof deep groove ball bearing, specifically relates to the technical field of deep groove ball bearings, including a bearing outer ring, the inner end of which is provided with a bearing inner ring, the inner end face of the bearing outer ring and the upper side of the outer end face of the bearing inner ring are both provided with a concave sealing groove, the inner end face of the bearing outer ring and the outer end face of the bearing inner ring are both provided with a concave ball groove, the outer end of the concave ball groove is provided with a limit clamp, and the outer end of the limit clamp is provided with a sealing gasket on the outside of the upper end. When the utility model is actually used, the stability of the bearing ball installation work can be effectively increased by setting the limit clamp and the bearing ball in a corresponding state, and at the same time, the gap between the bearing outer ring and the bearing outer ring can be divided into a plurality of cavities under the corresponding setting state of the sealing clamp, the sealing gasket, the first sealing protrusion, the second sealing protrusion and the third sealing protrusion, so as to effectively increase the sealing performance of the bearing.

Description

Technical Field

[0001] The utility model relates to the technical field of deep groove ball bearings, and more specifically, to a sealed and waterproof deep groove ball bearing. Background Art

[0002] Deep groove ball bearings, also known as radial ball bearings, are rolling bearings with low friction resistance and high rotation speed. They can be used on parts that bear radial loads, axial loads, or combined axial and radial loads and moment loads. They can be used in gearboxes, instruments and meters, motors, household appliances, internal combustion engines, transportation vehicles, agricultural machinery, construction machinery, engineering machinery, roller skates, yo-yos, etc. Existing deep groove ball bearings have poor sealing properties and are easily invaded by moisture, dirt, etc., causing rust on the deep groove ball bearings and reducing their service life. Therefore, the patent with prior art announcement number CN218408187U discloses a waterproof sealed deep groove ball bearing, in which the inner ring is driven to rotate by a power shaft, and the rolling element in the cage rolls along the second groove. When the rolling element contacts the outer ring, the sliding ring in the sliding cavity in the outer ring forms a motion mode with it, and the second sealing ring in the first groove on both sides of the outer ring seals the deep groove ball bearing, and the third sealing ring on the inner ring further seals it. The first sealing ring in the baffle closes the gap between the second sealing ring and the third sealing ring, and then it starts to be used.

[0003] When the above device is in use, it ensures that the entire deep groove ball bearing structure has strong sealing performance and is not easily invaded by moisture, dirt, etc., thereby avoiding rust of the deep groove ball bearing and not reducing its service life. However, the bearing is sealed by the first sealing ring, the second sealing ring and the third sealing ring. When the bearing is working, the gaps between the multiple sealing rings will become larger, causing the sealing performance of the sealing ring to the bearing to deteriorate. At the same time, the slip ring set up can easily affect the stability of the ball rotation. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a sealed and waterproof deep groove ball bearing. The technical problem to be solved by the utility model is: how to increase the sealing performance of the bearing and the stability of ball rotation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealed waterproof deep groove ball bearing, comprising a bearing outer ring, a bearing inner ring is arranged at the inner end thereof, a concave sealing groove is provided on the inner end surface of the bearing outer ring and the upper side of the outer end surface of the bearing inner ring, a concave ball groove is provided on the inner end surface of the bearing outer ring and the outer end surface of the bearing inner ring, a limiting clamp is provided at the outer end of the concave ball groove, a sealing gasket is provided at the outer side of the upper end of the limiting clamp, a reinforcing support pad is provided at the lower end of the sealing gasket, and a first sealing protrusion is provided at one end of the sealing gasket;

[0006] One end of the sealing gasket is provided with a second sealing protrusion on the lower side of the first sealing protrusion, and one end of the sealing gasket is provided with a third sealing protrusion on the lower side of the second sealing protrusion. Sealing rings are provided on both sides of the outer end surface of the limiting clamp.

[0007] In a preferred embodiment, a ball limiting groove is formed at the lower end of the limiting clamp, and a bearing ball is disposed inside the ball limiting groove.

[0008] In a preferred embodiment, the bearing balls are provided in a plurality and are arranged in a circular array outside the center point of the outer ring of the bearing in a top view direction;

[0009] The outer end surface of the bearing ball is matched with the inner end surface of the concave ball groove, and the outer end surface of the bearing ball is matched with the inner end surface of the ball limiting groove.

[0010] In a preferred embodiment, the inner end surface of the concave sealing groove is matched with the outer end surface of the third sealing protrusion, the sealing gasket is a rubber material component, there are two sealing gaskets, and they are arranged in a mirror state on both sides of the transverse center axis of the main viewing direction of the bearing outer ring.

[0011] In a preferred embodiment, the reinforcement support pad is a metal component, the lower end surface of the first sealing protrusion is in contact with the outer end surfaces of the bearing outer ring and the bearing inner ring, and the limit clamp is a graphite component;

[0012] There are two limit clamps, which are arranged in a mirror image on both sides of the transverse central axis of the main viewing direction of the outer ring of the bearing, and the two limit clamps are connected by external screws.

[0013] In a preferred embodiment, the outer end face of the second sealing protrusion fits the end face between the bearing outer ring and the bearing inner ring, and the sealing snap ring is a rubber material component, and the outer end face of the sealing snap ring fits the end face between the bearing outer ring and the bearing inner ring.

[0014] Technical effects and advantages of the utility model:

[0015] When the utility model is actually used, the stability of the bearing ball installation work can be effectively increased by setting the limit clamp and the bearing ball in a corresponding state. At the same time, the gap between the bearing outer ring and the bearing inner ring can be divided into multiple cavities under the corresponding setting of the sealing clamp ring, the sealing gasket, the first sealing protrusion, the second sealing protrusion and the third sealing protrusion, thereby effectively increasing the sealing of the bearing, thereby effectively increasing the waterproof performance of the deep groove ball bearing and increasing the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the overall main cross-sectional structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the overall cross-section connection structure of the utility model.

[0019] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0020] The figures are marked as: 1 bearing outer ring, 2 bearing inner ring, 3 sealing gasket, 4 bearing ball, 5 concave ball groove, 6 limiting clamp, 7 ball limiting groove, 8 first sealing protrusion, 9 second sealing protrusion, 10 concave sealing groove, 11 third sealing protrusion, 12 reinforcement support pad, 13 sealing retaining ring. DETAILED DESCRIPTION

[0021] The utility model provides a sealed waterproof deep groove ball bearing, such as Figure 1 , 2 As shown in and 3, it comprises a bearing outer ring 1, whose inner end is provided with a bearing inner ring 2, a sealing gasket 3 is provided on the outer side of the upper end of the limiting clamp 6, the inner end surface of the bearing outer ring 1 and the outer end surface of the bearing inner ring 2 are both provided with a concave ball groove 5, a limiting clamp 6 is provided at the outer end of the concave ball groove 5, and a ball limiting groove 7 is provided at the lower end of the limiting clamp 6;

[0022] The ball limiting groove 7 is provided with bearing balls 4 inside, and the bearing balls 4 can be separated at equal distances through the ball limiting groove 7, so as to ensure the smooth and stable operation of the bearing. At the same time, the ball limiting groove 7 can prevent dust and impurities in the external air from scratching the surface of the bearing balls 4. The number of the bearing balls 4 is provided in plurality, and they are arranged in a circular array state outside the center point of the bearing outer ring 1 in the top view direction. The outer end face of the bearing ball 4 is matched with the inner end face of the concave ball groove 5, and the outer end face of the bearing ball 4 is matched with the inner end face of the ball limiting groove 7. The sealing gasket 3 is a rubber material component, and the cavity in which the bearing balls 4 are installed can be sealed through the sealing gasket 3 to prevent external dust from entering the rotating working space of the bearing balls 4;

[0023] There are two sealing gaskets 3, which are mirror-imaged on both sides of the transverse central axis of the bearing outer ring 1 in the main viewing direction. The limit clamp 6 is a graphite component. There are two limit clamps 6, which are mirror-imaged on both sides of the transverse central axis of the bearing outer ring 1 in the main viewing direction. The two limit clamps 6 are connected by external screws. The material of the limit clamp 6 can increase the heat insulation of the bearing, thereby preventing the external temperature from affecting the bearing balls 4.

[0024] like Figure 4 As shown, the inner end surface of the bearing outer ring 1 and the upper side of the outer end surface of the bearing inner ring 2 are both provided with a concave sealing groove 10, the lower end of the sealing gasket 3 is provided with a reinforcing support pad 12, one end of the sealing gasket 3 is provided with a first sealing protrusion 8, and one end of the sealing gasket 3 is provided with a second sealing protrusion 9 on the lower side of the first sealing protrusion 8;

[0025] A third sealing protrusion 11 is provided at one end of the sealing gasket 3 on the lower side of the second sealing protrusion 9, and sealing snap rings 13 are provided on both sides of the outer end surface of the limit clamp 6. The inner end surface of the concave sealing groove 10 is adapted to the outer end surface of the third sealing protrusion 11. The first sealing protrusion 8, the second sealing protrusion 9, the third sealing protrusion 11 and the sealing snap ring 13 are in a state of being in contact with the adjacent end surfaces of the bearing outer ring 1 and the bearing inner ring 2, dividing the gap into a plurality of sealing cavities, thereby effectively increasing the sealing performance of the bearing and preventing the lubricating oil inside the bearing from overflowing. The reinforced support pad 12 is a metal component, and the material of the reinforced support pad 12 will support the stability of the installation of the sealing gasket 3 to prevent the sealing gasket 3 from being deformed and falling off in bad weather. The lower side end surface of the first sealing protrusion 8 is in contact with the outer end surfaces of the bearing outer ring 1 and the bearing inner ring 2;

[0026] The outer end surface of the second sealing protrusion 9 fits the end surface between the bearing outer ring 1 and the bearing inner ring 2. The sealing snap ring 13 is a rubber component. The outer end surface of the sealing snap ring 13 fits the end surface between the bearing outer ring 1 and the bearing inner ring 2.

[0027] Working principle of this utility model:

[0028] When the utility model is used, the staff installs multiple bearing balls 4 on the inner sides of the bearing outer ring 1 and the bearing inner ring 2, and separates them evenly. Then the limit clamp 6 can be installed in the gap between the bearing outer ring 1 and the bearing inner ring 2, and the ball limit groove 7 is clamped at the outer end of the bearing ball 4. Then the two limit clamps 6 are connected and stabilized by screws. Then the sealing gasket 3 can be installed on the outside of the limit clamp 6, and the third sealing protrusion 11 is clamped on the inner side of the concave sealing groove 10. At the same time, the second sealing protrusion 9 is attached to the adjacent end faces of the bearing outer ring 1 and the bearing inner ring 2. After the installation is stable, the bearing can be installed and used.

[0029] Finally, a few points should be explained: the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealed and waterproof deep groove ball bearing, characterized in that: include: A bearing outer ring (1) is provided with a bearing inner ring (2) at its inner end, a concave sealing groove (10) is provided on the upper side of the inner end surface of the bearing outer ring (1) and the outer end surface of the bearing inner ring (2), a concave ball groove (5) is provided on the inner end surface of the bearing outer ring (1) and the outer end surface of the bearing inner ring (2), a limit clamp (6) is provided at the outer end of the concave ball groove (5), a sealing gasket (3) is provided on the outside of the upper end of the limit clamp (6), a reinforcing support pad (12) is provided at the lower end of the sealing gasket (3), and a first sealing protrusion (8) is provided at one end of the sealing gasket (3); One end of the sealing gasket (3) is provided with a second sealing protrusion (9) on the lower side of the first sealing protrusion (8), one end of the sealing gasket (3) is provided with a third sealing protrusion (11) on the lower side of the second sealing protrusion (9), and sealing clamp rings (13) are provided on both sides of the outer end surface of the limit clamp (6).

2. A sealed and waterproof deep groove ball bearing according to claim 1, characterized in that: A ball limiting groove (7) is provided at the lower end of the limiting clamp (6), and a bearing ball (4) is provided inside the ball limiting groove (7).

3. A sealed and waterproof deep groove ball bearing according to claim 2, characterized in that: The bearing balls (4) are provided in a plurality and are arranged in a ring array outside a center point of the bearing outer ring (1) in a top-view direction; The outer end surface of the bearing ball (4) is matched with the inner end surface of the concave ball groove (5), and the outer end surface of the bearing ball (4) is matched with the inner end surface of the ball limiting groove (7).

4. A sealed and waterproof deep groove ball bearing according to claim 1, characterized in that: The inner end surface of the concave sealing groove (10) is matched with the outer end surface of the third sealing protrusion (11); the sealing pad (3) is a rubber material component; there are two sealing pads (3) and they are arranged in a mirror image state on both sides of the transverse central axis of the bearing outer ring (1) in the main viewing direction.

5. A sealed and waterproof deep groove ball bearing according to claim 1, characterized in that: The reinforcing support pad (12) is a metal component, the lower end surface of the first sealing protrusion (8) is in contact with the outer end surfaces of the bearing outer ring (1) and the bearing inner ring (2), and the limit clamp (6) is a graphite component; The number of the limit clamps (6) is two, and they are arranged in a mirror image state on both sides of the transverse central axis of the bearing outer ring (1) in the main viewing direction, and the two limit clamps (6) are connected by external screws.

6. A sealed and waterproof deep groove ball bearing according to claim 1, characterized in that: The outer end surface of the second sealing protrusion (9) fits with the end surface between the bearing outer ring (1) and the bearing inner ring (2); the sealing snap ring (13) is a rubber material component; the outer end surface of the sealing snap ring (13) fits with the end surface between the bearing outer ring (1) and the bearing inner ring (2).

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