Bearing with waterproof sealing structure

Abstract

The utility model discloses a bearing with a waterproof sealing structure, which comprises an outer ring, an inner ring and a plurality of rollers, the inner ring is arranged inside the outer ring, and the plurality of rollers are arranged between the outer ring and the inner ring at equal intervals. The side wall of the inner circle side of the outer ring and the side wall of the outer circle side of the inner ring are provided with matched rolling grooves corresponding to the rollers, and the rollers make contact with the inner walls of the rolling grooves. The bearing disclosed by the utility model has the beneficial effects that the external thread ring plate is arranged between the outer ring and the inner ring for sealing, the external thread ring plate is sleeved in the internal thread ring groove on the outer ring in a threaded manner for installation, and the external thread ring plate can be used for sealing a gap between the outer ring and the inner ring; impurities can be effectively prevented from entering the rolling groove to influence the roller, the sealing ring on the external thread ring plate is inserted into the sealing groove, the waterproof sealing effect of the sealing ring can be further improved, and water can be effectively prevented from entering the rolling groove.

Description

Technical Field

[0001] The utility model relates to a bearing, in particular to a bearing with a waterproof sealing structure, and belongs to the technical field of roller bearings. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. According to the different friction properties of the moving elements, bearings can be divided into two categories: rolling bearings and sliding bearings. Among them, rolling bearings have been standardized and serialized, but compared with sliding bearings, their radial dimensions, vibrations and noise are larger, and their prices are also higher. Rolling bearings are generally composed of four parts: outer ring, inner ring, rolling element and cage.

[0003] Since rolling elements and retaining cages are arranged between the outer ring and the inner ring, a large gap is left between the outer ring and the inner ring, so that the bearing does not have a waterproof sealing effect. When the bearing is used in a humid environment or an environment with a large amount of dust for a long time, the rolling elements, i.e. rollers, inside the bearing will be affected by moisture and rust, and impurities will adhere to it, which will hinder the rolling of the rolling elements, resulting in poor bearing performance and reduced bearing service life. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a bearing with a waterproof sealing structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bearing with a waterproof sealing structure is designed, comprising an outer ring, an inner ring and rollers, wherein the inner ring is arranged inside the outer ring, a plurality of rollers are arranged and arranged between the outer ring and the inner ring at equal intervals, and matching rolling grooves are opened on the side wall of the inner circle side of the outer ring and the side wall of the outer circle side of the inner ring corresponding to the rollers, and the rollers are in contact with the inner walls of the rolling grooves;

[0007] The top and the bottom of the outer ring are both provided with internal threaded ring grooves, the internal threads of the internal threaded ring grooves are plugged with external threaded ring plates, and the external threaded ring plates are rotatably sleeved on the outer wall of the inner ring.

[0008] Preferably, a first sealing ring and a second sealing ring are fixedly connected to the plate wall of the external threaded ring plate close to the outer ring, and a first sealing groove corresponding to the first sealing ring is opened at the top and bottom of the outer ring, and a second sealing groove corresponding to the second sealing ring is opened at the top and bottom of the inner ring.

[0009] Preferably, the top and bottom of each roller are fixedly connected with a positioning shaft, two positioning rings are provided between the outer ring and the inner ring corresponding to the positioning shaft, and the two positioning rings are fixedly connected with two external threaded ring plates respectively.

[0010] Preferably, a plurality of matching positioning grooves are formed at equal intervals on one end of the positioning ring away from the external threaded ring plate corresponding to the positioning shaft, and one end of the positioning shaft away from the roller is inserted into the inside of an adjacent positioning groove.

[0011] Preferably, the internal threaded ring groove is coaxially arranged with the inner ring.

[0012] The utility model proposes a bearing with a waterproof sealing structure, and its beneficial effects are as follows: the utility model proposes a bearing with a waterproof sealing structure, and its beneficial effects are as follows: the utility model proposes a bearing with a waterproof sealing structure, and its beneficial effects are as follows: the bearing with a waterproof sealing structure has a simple structure and is easy to use; an externally threaded ring plate is arranged between the outer ring and the inner ring for sealing; the externally threaded ring plate is threadedly sleeved in the internally threaded ring groove on the outer ring for installation; the externally threaded ring plate can seal the gap between the outer ring and the inner ring, and can effectively prevent impurities from entering the interior of the rolling groove and affecting the roller; and the sealing ring on the externally threaded ring plate is inserted into the interior of the sealing groove, and can further improve its waterproof sealing effect, and can effectively prevent water from entering the interior of the rolling groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A structural schematic diagram of a bearing with a waterproof sealing structure proposed by the utility model;

[0014] Figure 2 A cross-sectional view of a bearing with a waterproof sealing structure proposed by the utility model;

[0015] Figure 3 This is a disassembled diagram of a bearing with a waterproof sealing structure proposed by the utility model;

[0016] Figure 4 This is a cross-sectional view of a bearing after being disassembled with a waterproof sealing structure proposed by the utility model.

[0017] In the figure: 1. outer ring; 2. inner ring; 3. roller; 4. rolling groove; 5. positioning shaft; 6. internal thread ring groove; 7. external thread ring plate; 8. positioning ring; 9. positioning groove; 10. first sealing ring; 11. second sealing ring; 12. first sealing groove; 13. second sealing groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-4A bearing with a waterproof sealing structure comprises an outer ring 1, an inner ring 2 and rollers 3, wherein the inner ring 2 is arranged inside the outer ring 1, a plurality of rollers 3 are arranged and the plurality of rollers 3 are arranged between the outer ring 1 and the inner ring 2 at equal intervals, and a matching rolling groove 4 is opened on the side wall of the inner circle side of the outer ring 1 and the side wall of the outer circle side of the inner ring 2 corresponding to the roller 3, and the roller 3 contacts the inner wall of the rolling groove 4;

[0020] The top and bottom of the outer ring 1 are both provided with internal threaded ring grooves 6 , and the internal threads of the internal threaded ring grooves 6 are plugged with external threaded ring plates 7 , which are rotatably sleeved on the outer wall of the inner ring 2 .

[0021] Preferably, a first sealing ring 10 and a second sealing ring 11 are fixedly connected to the plate wall of the external threaded ring plate 7 close to the outer ring 1, and a first sealing groove 12 is provided at the top and bottom of the outer ring 1 corresponding to the first sealing ring 10, and a second sealing groove 13 is provided at the top and bottom of the inner ring 2 corresponding to the second sealing ring 11. The sealing rings are inserted into the inside of the sealing grooves to effectively improve the sealing effect between the external threaded ring plate 7 and the outer ring 1 and the inner ring 2.

[0022] Preferably, the top and bottom of each roller 3 are fixedly connected with a positioning shaft 5, and two positioning rings 8 are provided between the outer ring 1 and the inner ring 2 corresponding to the positioning shaft 5, and the two positioning rings 8 are fixedly connected to two external threaded ring plates 7 respectively, and the positioning rings 8 can limit the spacing between the rollers 3.

[0023] Preferably, a plurality of matching positioning grooves 9 are provided at equal intervals on the end of the positioning ring 8 away from the external threaded ring plate 7 corresponding to the positioning shaft 5, and the end of the positioning shaft 5 away from the roller 3 is inserted into the interior of the adjacent positioning groove 9. The positioning groove 9 can make it more convenient for the positioning ring 8 to position the roller 3.

[0024] Preferably, the internal threaded ring groove 6 is coaxially arranged with the inner ring 2 , and the coaxial arrangement can effectively synchronize the rotation of the external threaded ring plate 7 with the rotation of the outer ring 1 .

[0025] Working principle: When the bearing is used in an environment with a lot of dust, the external threaded ring plate 7 is threadedly inserted into the internal threaded ring groove 6 on the outer ring 1. The external threaded ring plate 7 can close the gap between the outer ring 1 and the inner ring 2, which can effectively prevent dust from entering the inside of the rolling groove 4, thereby effectively preventing the roller 3 from adhering to impurities and affecting the rolling;

[0026] When the bearing is located in water for use, the external threaded ring plate 7 is installed in the same way. The first sealing ring 10 and the second sealing ring 11 on the external threaded ring plate 7 are respectively inserted into the first sealing groove 12 and the second sealing groove 13. The sealing rings are inserted into the sealing grooves to further improve the effect of the external threaded ring plate 7 between the outer ring 1 and the inner ring 2, and can effectively prevent water from entering the rolling groove 4.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bearing with a waterproof sealing structure, characterized in that: The invention comprises an outer ring (1), an inner ring (2) and a roller (3), wherein the inner ring (2) is arranged inside the outer ring (1), a plurality of rollers (3) are arranged and the plurality of rollers (3) are arranged at equal intervals between the outer ring (1) and the inner ring (2), and a rolling groove (4) corresponding to the roller (3) is provided on the side wall of the inner circle side of the outer ring (1) and the side wall of the outer circle side of the inner ring (2), and the roller (3) contacts the inner wall of the rolling groove (4); The top and bottom of the outer ring (1) are both provided with an internal threaded ring groove (6), the internal threads of the internal threaded ring groove (6) are plugged with an external threaded ring plate (7), and the external threaded ring plate (7) is rotatably sleeved on the outer wall of the inner ring (2); A first sealing ring (10) and a second sealing ring (11) are fixedly connected to the plate wall of the external threaded ring plate (7) on the side close to the outer ring (1); the top and bottom of the outer ring (1) are both provided with a first sealing groove (12) corresponding to the first sealing ring (10); and the top and bottom of the inner ring (2) are both provided with a second sealing groove (13) corresponding to the second sealing ring (11).

2. A bearing with a waterproof sealing structure according to claim 1, characterized in that: The top and bottom of each roller (3) are fixedly connected to a positioning shaft (5), two positioning rings (8) are provided between the outer ring (1) and the inner ring (2) corresponding to the positioning shaft (5), and the two positioning rings (8) are fixedly connected to two externally threaded ring plates (7) respectively.

3. A bearing with a waterproof sealing structure according to claim 2, characterized in that: The end of the positioning ring (8) away from the external threaded ring plate (7) is provided with a plurality of matching positioning grooves (9) at equal intervals corresponding to the positioning shaft (5), and the end of the positioning shaft (5) away from the roller (3) is inserted into the interior of an adjacent positioning groove (9).

4. A bearing with a waterproof sealing structure according to claim 1, characterized in that: The internal threaded annular groove (6) is coaxially arranged with the inner ring (2).

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