Bearing with removable dust cap

Abstract

The application discloses a bearing with detachable dustproof cover and relates to the field of bearings, which comprises an inner ring and an outer ring, balls are arranged between the inner ring and the outer ring, a cover plate ladder gap is formed on the upper and lower parts of the inner side of the outer ring, a mounting slot is formed at the upper and lower parts of the inner side of the outer ring and located at the cover plate ladder gap, a protective cover plate is mounted at the cover plate ladder gap, a clamping spring is mounted in the mounting slot, and the lower part of the clamping spring is attached to the upper surface of the protective cover plate. The clamping spring can be taken out from the mounting slot by a tool, then the protective cover plate is removed, and after the bearing is cleaned or parts are replaced, the clamping spring can be reinstalled, so that the maintenance is very convenient. In order to improve the fixing stability of the clamping spring, an abutting ring is arranged on the inner side of the outer ring, and the outer side upper part of the clamping spring is tightly attached to the inner side below the abutting ring after the clamping spring is mounted. The abutting ring plays the role of radial support and limiting, and the problem that replacement is extremely inconvenient is solved.

Description

Technical Field

[0001] This application relates to the field of bearings, and more particularly to bearings with removable dust covers. Background Technology

[0002] Bearings are a crucial basic component in modern mechanical equipment. Their main function is to support rotating mechanical bodies, reduce the coefficient of friction during their movement, and ensure their rotational accuracy. In many applications, such as textile machinery, food processing equipment, or equipment operating in dusty environments, it is essential to prevent external dust and impurities from entering the bearing.

[0003] Existing bearings typically use sealing rings or press-fit dust covers for sealing, but once these structures are damaged, replacement is extremely inconvenient, often requiring the entire bearing to be scrapped, increasing maintenance and operating costs. Furthermore, traditional bearing structures are too simple to adapt to certain specific operating conditions, such as those requiring thread crossings or special requirements for the ball cage. Utility Model Content

[0004] To address the problem that existing bearings typically use sealing rings or press-fit dust covers for sealing, but these structures are extremely inconvenient to replace once damaged, often requiring the entire bearing to be scrapped, thus increasing maintenance and operating costs, this application provides a bearing with a removable dust cover.

[0005] The bearing with a removable dust cover provided in this application adopts the following technical solution: It includes an inner ring and an outer ring, with ball bearings disposed between the inner ring and the outer ring. The upper and lower parts of the inner side of the outer ring are provided with cover plate trapezoidal openings. The upper and lower parts of the inner side of the outer ring, located at the cover plate trapezoidal openings, are provided with mounting slots. A protective cover plate is installed at the cover plate trapezoidal openings. A retaining spring is installed inside the mounting slots, and the lower part of the retaining spring is attached to the upper surface of the protective cover plate.

[0006] By adopting the above technical solution, the protective cover is firmly pressed into the ladder opening of the cover plate by the elastic tension of the retaining spring, thereby achieving the dustproof function. When it is necessary to clean the inside or replace parts, the protective cover can be removed simply by removing the retaining spring, which is easy to operate.

[0007] Preferably, an abutment ring is provided on the inner side of the outer ring, and the upper part of the outer side of the retaining spring is located at the lower part of the abutment ring and fits against the inner side of the abutment ring.

[0008] By adopting the above technical solution, the retaining ring is radially limited to prevent it from shifting or coming out during operation due to vibration or other reasons, thus ensuring the reliability of the retaining ring fixation.

[0009] Preferably, a wire feeding groove is provided at the middle position of the outer ring, and the upper and lower parts of the wire feeding groove are provided with an inclined arc to accommodate wires of different sizes.

[0010] By adopting the above technical solutions, the bearing can be used as a guide wheel or wire guide device. The inclined arc design can better adapt to different sizes of wires and reduce wire wear.

[0011] Preferably, a retainer is provided between the inner ring and the outer ring, and the retainer has multiple pockets adapted to the balls, with each ball disposed inside one of the multiple pockets.

[0012] By adopting the above technical solution, the cage is used to evenly separate the balls, reducing friction and wear.

[0013] Preferably, two symmetrical protrusions are provided on both sides of the inside of the pocket, and two protrusions are provided on the protrusions.

[0014] By adopting the above technical solution, the contact between the ball and the cage is point contact or small area contact, which effectively reduces the contact area and frictional resistance between the pocket and the ball.

[0015] Preferably, the protrusions fit against the sides of the ball, and the two protrusions are located at the upper and lower parts of the ball, respectively.

[0016] By adopting the above technical solution, the upper and lower protrusions can effectively limit the movement of the balls, reduce the temperature rise and noise during bearing operation, and improve the bearing's service life and maximum speed.

[0017] Preferably, there are two protective covers and retaining rings, located at the upper and lower parts between the inner and outer rings respectively, and there is a gap between the inner side of the protective cover and the outer side of the inner ring.

[0018] By adopting the above technical solution, the double-sided protection design can effectively block pollutants from both sides. At the same time, there is a gap between the inner side of the protective cover and the outer side of the inner ring. This gap can not only prevent the protective cover from rubbing against the inner ring, but also form a sealing path, further enhancing the dustproof effect.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. With this application, the retaining ring can be removed from the mounting slot using tools, and then the protective cover can be removed. After cleaning the inside of the bearing or replacing parts, it can be reinstalled, making maintenance very convenient. In order to improve the fixing stability of the retaining ring, an abutment ring is set on the inner side of the outer ring. After the retaining ring is installed, its outer upper part is tightly attached to the inner lower part of the abutment ring. The abutment ring plays the role of radial support and limiting, solving the problem of extremely inconvenient replacement. 2. By setting the wire feeding groove, this application enables the bearing to be used in textile, laser cutting and other equipment as a wire guide or wire guide wheel. The inclined arc can prevent the wire from being cut by sharp edges and adapt to different wire diameters. The protrusions contact the spherical surface of the ball from the upper and lower directions to form multi-point limiting. This point contact design greatly reduces the sliding friction and heat generation between the cage and the ball, which is conducive to the stable operation of the bearing at high speed and extends its service life. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a bearing with a removable dust cover according to an embodiment of this application; Figure 2 This is a schematic diagram illustrating the main inner structure of the embodiments of this application; Figure 3 This is a schematic diagram illustrating the enlarged structure of part A, which is the main embodiment of this application. Figure 4 This is a schematic diagram illustrating the main structure of the inner ring portion in an embodiment of this application; Figure 5 This is a schematic diagram illustrating the main structure of the cage portion in the embodiments of this application; Reference numerals: 1. Inner ring; 2. Outer ring; 3. Ball bearing; 4. Cover plate trapezoidal opening; 5. Mounting slot; 6. Abutment ring; 7. Protective cover plate; 8. Snap ring; 9. Wire feed groove; 10. Inclined arc; 11. Cage; 12. Pocket; 13. Protrusion; 14. Raise. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0022] This application discloses a bearing with a removable dust cover; please refer to [reference needed]. Figures 1 to 3The bearing includes an inner ring 1 and an outer ring 2, with ball bearings 3 positioned between them. The upper and lower inner sides of the outer ring 2 have cover plate trapezoidal openings 4. Mounting slots 5 are located at the upper and lower inner sides of the outer ring 2, specifically at the cover plate trapezoidal openings 4. Protective cover plates 7 are installed at the cover plate trapezoidal openings 4. A retaining spring 8 is installed inside the mounting slot 5, with its lower part fitting against the upper surface of the protective cover plate 7. Under the pressure of the retaining spring 8, the protective cover plates 7 on both sides are tightly fitted onto the cover plate trapezoidal openings 4, effectively preventing external dust and impurities from entering the bearing. The inner side of the outer ring 2 also has... There is an abutment ring 6. The upper outer part of the snap ring 8 is located at the lower part of the abutment ring 6 and fits against the inner side of the abutment ring 6. When maintenance is required, the snap ring 8 can be removed from the mounting slot 5 using a special tool. Then, the protective cover 7 can be removed, the bearing interior can be cleaned or parts replaced, and then it can be reinstalled. Maintenance is very convenient. In order to improve the fixing stability of the snap ring 8, an abutment ring 6 is set on the inner side of the outer ring 2. After the snap ring 8 is installed, its upper outer part is tightly attached to the lower inner side of the abutment ring 6. The abutment ring 6 plays the role of radial support and limiting.

[0023] Please refer to Figure 1 and Figure 2 The outer ring 2 has a wire feeding groove 9 in the middle. The upper and lower parts of the wire feeding groove 9 are both provided with an inclined arc 10 to accommodate wires of different sizes. By setting the wire feeding groove 9, the bearing can be used in textile, laser cutting and other equipment as a wire guide or wire guide wheel. The inclined arc 10 can prevent the wire from being cut by sharp edges and adapt to different wire diameters.

[0024] Please refer to Figure 4 and Figure 5 A cage 11 is provided between the inner ring 1 and the outer ring 2. The cage 11 has multiple pockets 12 that are adapted to the balls 3. The balls 3 are arranged one by one inside the multiple pockets 12. Two symmetrical protrusions 13 are provided on both sides inside the pockets 12. Two protrusions 14 are provided on the protrusions 13. The cage 11 guides and separates the balls 3 in a low-friction manner through the protrusions 14 in its pockets 12. The protrusions 14 and the sides of the balls 3 are in contact, and the two protrusions 14 are located at the upper and lower parts of the balls 3 respectively. The protrusions 14 contact the spherical surface of the balls 3 from the upper and lower directions respectively, forming a multi-point limit. This point contact design greatly reduces the sliding friction and heat generation between the cage 11 and the balls 3, which is conducive to the stable operation of the bearing at high speed and extends its service life.

[0025] Please refer to Figure 1 and Figure 2There are two protective cover plates 7 and snap rings 8, located at the top and bottom of the inner ring 1 and the outer ring 2 respectively. There is a gap between the inner side of the protective cover plate 7 and the outer side of the inner ring 1. This gap not only ensures that the inner ring 1 does not rub against the protective cover plate 7 when it rotates freely, but also forms a non-contact seal. Together with the detachable protective cover plate 7, they form a highly efficient composite sealing system, which can not only avoid friction between the protective cover plate and the inner ring, but also form a sealing path, further enhancing the dustproof effect.

[0026] The implementation principle of the bearing with a removable dust cover in this application embodiment is as follows: When the bearing is running normally, the balls 3 roll in the raceway between the inner ring 1 and the outer ring 2, transmitting the load. The protective covers 7 on both sides are tightly fitted to the trapezoidal opening 4 of the cover plate under the pressure of the retaining spring 8, effectively preventing external dust and impurities from entering the bearing. The cage 11 guides and separates the balls 3 in a low-friction manner through the protrusions 14 in its pocket 12. The two protrusions 14 are located at the upper and lower parts of the balls 3, respectively. The protrusions 14 contact the spherical surface of the balls 3 from the upper and lower directions, forming a multi-point limit. This point contact design greatly reduces the sliding friction and heat generation between the cage 11 and the balls 3. When the bearing is used in a wire feeding application, the wire can be embedded in the wire feeding groove 9 of the outer ring 2 and guided by its smooth inclined arc 10. When maintenance is required, the retaining spring 8 can be removed to remove the protective cover 7, and the inside of the bearing can be cleaned, lubricated, or parts replaced.

[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bearing with a removable dust cover, characterized in that: It includes an inner ring (1) and an outer ring (2), with a ball bearing (3) between the inner ring (1) and the outer ring (2). The upper and lower parts of the inner side of the outer ring (2) are provided with a cover plate trapezoidal opening (4). The upper and lower parts of the inner side of the outer ring (2) and located at the cover plate trapezoidal opening (4) are provided with an installation slot (5). A protective cover plate (7) is installed at the cover plate trapezoidal opening (4). A retaining spring (8) is installed inside the installation slot (5). The lower part of the retaining spring (8) is attached to the upper surface of the protective cover plate (7).

2. The bearing with a removable dust cover according to claim 1, characterized in that: An abutment ring (6) is also provided on the inner side of the outer ring (2). The upper part of the outer side of the snap ring (8) is located at the lower part of the abutment ring (6) and is in contact with the inner side of the abutment ring (6).

3. The bearing with a removable dust cover according to claim 1, characterized in that: The outer ring (2) has a wire feeding groove (9) in the middle position. The upper and lower parts of the wire feeding groove (9) are provided with an inclined arc (10) to accommodate wires of different sizes.

4. The bearing with a removable dust cover according to claim 1, characterized in that: A retainer (11) is provided between the inner ring (1) and the outer ring (2). The retainer (11) has multiple pockets (12) adapted to the balls (3). The balls (3) are arranged one by one inside the multiple pockets (12).

5. The bearing with a removable dust cover according to claim 4, characterized in that: The pocket (12) has two symmetrical protrusions (13) on its inner sides, and the protrusions (13) have two protrusions (14).

6. The bearing with a removable dust cover according to claim 5, characterized in that: The protrusion (14) and the ball (3) are attached to each other, and the two protrusions (14) are located at the upper and lower parts of the ball (3) respectively.

7. The bearing with a removable dust cover according to claim 1, characterized in that: There are two protective covers (7) and snap rings (8), located at the upper and lower parts between the inner ring (1) and the outer ring (2), respectively, and there is a gap between the inner side of the protective cover (7) and the outer side of the inner ring (1).

Images