A wear-resistant and dustproof bearing

Abstract

This application discloses a wear-resistant and dustproof bearing, relating to the field of bearings. It includes an outer bearing ring, an inner bearing ring, and bearing balls positioned between the outer and inner bearing rings. The outer bearing ring is equipped with a protective mechanism, which includes a dustproof component and a wear-resistant component. This application significantly improves the sealing effect under both static and dynamic conditions by adding a sealing ring within the slot, forming a composite sealing structure of snap-fit ​​and compression sealing. This effectively prevents the intrusion of fine dust and moisture, making it suitable for harsher working conditions such as textiles, food processing, and outdoor equipment. Furthermore, by using silicon nitride ceramic bearing balls combined with a ceramic wear-resistant bearing ring and a bearing cage, an all-ceramic or hybrid ceramic bearing is constructed. The silicon nitride balls have low density, high hardness, insulation, and are non-magnetic. This combination greatly reduces the overall weight and centrifugal force of the bearing, enabling ultra-high-speed operation and making it suitable for strong magnetic fields, insulating, or extremely corrosive environments.

Description

Technical Field

[0001] This application relates to the field of bearings, and more particularly to a wear-resistant and dustproof bearing. Background Technology

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support rotating mechanical parts, reduce the coefficient of friction during their movement, and ensure their rotational accuracy.

[0003] A search revealed a Chinese patent with authorization announcement number CN211288453U, which discloses a wear-resistant, dustproof, and long-life bearing, including an outer bearing ring, an inner bearing ring, and bearing balls placed between the outer and inner bearing rings. The outer bearing ring is provided with a dust cover, and the dust cover is provided with a snap-fit ​​connector.

[0004] The wear-resistant, dustproof, and long-life bearing in the aforementioned patent has the following shortcomings: Although the bearing can prevent dust from entering the bearing interior, improve the bearing's wear resistance, and increase the bearing's service life;

[0005] However, the bearing outer ring groove of this device does not have a wear-resistant sealing component, which will lead to micro gaps during installation and long-term use, further allowing dust to enter. Therefore, the dustproof and wear-resistant properties of this device can be further improved. Utility Model Content

[0006] To further improve the dustproof and wear-resistant properties of the bearing in this device during use, this application provides a wear-resistant and dustproof bearing.

[0007] The wear-resistant and dustproof bearing provided in this application adopts the following technical solution: a wear-resistant and dustproof bearing includes an outer ring of the bearing, an inner ring of the bearing, and bearing balls placed between the outer ring of the bearing and the inner ring of the bearing. The outer ring of the bearing is provided with a protective mechanism, which includes a dustproof component and a wear-resistant component.

[0008] The dustproof component includes a dust cover externally mounted on the outer ring of the bearing. The dust cover has a snap-fit ​​connector, the snap-fit ​​connector has an outer protruding ring, the outer ring of the bearing has a snap-fit ​​groove that matches the outer protruding ring, the outer ring of the bearing has an interference fit head, the top of the snap-fit ​​connector fits into the interference fit head, the groove has a sealing ring, the outer protruding ring is covered with a dustproof sleeve, and the dustproof sleeve and the sealing ring inside the groove are adapted to each other.

[0009] The wear-resistant component includes a mounting groove formed on the inner side of the bearing outer ring, the bearing balls are installed in the mounting groove, and both the bearing outer ring and the mounting groove are provided with a ceramic wear-resistant layer, the ceramic wear-resistant layer being provided with a microcapsule layer.

[0010] By adopting the above technical solution and adding a sealing ring in the slot to form a composite sealing structure of snap-fit ​​+ compression sealing, the sealing effect under static and dynamic conditions is greatly improved, which can more effectively prevent the intrusion of fine dust and moisture, and is suitable for harsher working conditions such as textiles, food processing and outdoor equipment.

[0011] By introducing a self-healing microcapsule layer into the ceramic wear-resistant layer, when microcracks appear in the coating, the microcapsule layer ruptures and releases a repair agent such as low-viscosity siloxane. Under the action of frictional heat, the repair agent solidifies and fills the crack, further endowing the bearing wear surface with self-healing ability, actively inhibiting crack propagation, and raising the bearing life from passive wear to a new level of active life extension.

[0012] Preferably, a bearing cage is provided between the outer ring and the inner ring of the bearing, and the bearing balls are mounted in an annular array within the bearing cage.

[0013] By adopting the above technical solution and setting up a bearing cage, an auxiliary support function can be provided for installation.

[0014] Preferably, the sealing ring and dust cover are made of silicone.

[0015] By adopting the above technical solution, the sealing ring and dust cover are made of silicone, which facilitates extrusion installation.

[0016] Preferably, the bearing balls are silicon nitride ceramic balls.

[0017] By adopting the above technical solutions, silicon nitride balls have low density, high hardness, insulation, and no magnetism. This combination can greatly reduce the overall weight and centrifugal force of the bearing, achieve ultra-high speed operation, and is suitable for strong magnetic fields, insulation, or extreme corrosive environments.

[0018] Preferably, the microcapsule layer is made of a low-viscosity siloxane material.

[0019] By adopting the above technical solution, and using a microcapsule layer made of low-viscosity siloxane material, repair can be achieved.

[0020] Preferably, the bearing balls, the ceramic wear-resistant layer, and the bearing cage form an all-ceramic bearing.

[0021] By adopting the above technical solution, using silicon nitride ceramic balls as bearing balls, and combining them with bearing rings with ceramic wear-resistant layers and bearing cages, an all-ceramic or hybrid ceramic bearing is constructed.

[0022] Preferably, the sealing ring is an O-ring.

[0023] By adopting the above technical solution and using an O-ring for the sealing ring, installation and use are facilitated.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. This application employs a sealing ring and other components to form a composite sealing structure of snap-fit ​​+ compression sealing by adding a sealing ring inside the slot. This greatly improves the sealing effect under both static and dynamic conditions, and can more effectively prevent the intrusion of fine dust and moisture. It is suitable for harsher working conditions such as textiles, food processing, and outdoor equipment. By using silicon nitride ceramic balls as bearing balls, combined with a ceramic wear-resistant bearing ring and a bearing cage, an all-ceramic or hybrid ceramic bearing is constructed. Furthermore, the silicon nitride balls have low density, high hardness, insulation, and are non-magnetic. This combination can greatly reduce the overall weight and centrifugal force of the bearing, achieve ultra-high speed operation, and is suitable for strong magnetic fields, insulation, or extreme corrosive environments.

[0026] 2. This application utilizes the combined effect of microcapsule layers, etc. By introducing microcapsule layers with self-healing function into the ceramic wear-resistant layer, when microcracks appear in the coating, the microcapsule layers rupture and release repair agents such as low-viscosity siloxanes, which solidify and fill the cracks under the action of frictional heat, further endowing the bearing wear surface with self-healing ability, actively inhibiting crack propagation, and raising the bearing life from passive wear to a new level of active life extension. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a wear-resistant and dustproof bearing according to an embodiment of this application;

[0028] Figure 2 This is a schematic diagram illustrating the main protective structure of the embodiments of this application;

[0029] Figure 3 This is a partially enlarged schematic diagram illustrating the dustproof structure in the embodiments of this application;

[0030] Figure 4 This is a partial unfolded schematic diagram illustrating the wear-resistant structure in the embodiments of this application;

[0031] Reference numerals: 1. Bearing outer ring; 2. Bearing inner ring; 3. Mounting groove; 4. Bearing ball; 5. Microcapsule layer; 6. Ceramic wear-resistant layer; 7. Slot; 8. Outer convex ring; 9. Dust cover; 10. Clamping head; 11. Bearing cage; 12. Sealing ring; 13. Interference fit clamp; 14. Dust cover. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0033] This application discloses a wear-resistant and dustproof bearing.

[0034] Reference Figure 1-3A wear-resistant and dustproof bearing includes an outer ring 1, an inner ring 2, and bearing balls 4 placed between the outer ring 1 and the inner ring 2. The outer ring 1 is provided with a protective mechanism, which includes a dustproof component and a wear-resistant component.

[0035] The dustproof component includes a dust cover 9 externally mounted on the outer ring 1 of the bearing, a snap-fit ​​connector 10 on the dust cover 9, an outer protruding ring 8 on the snap-fit ​​connector 10, a snap groove 7 on the outer ring 1 of the bearing that is adapted to the outer protruding ring 8, an interference fit head 13 on the outer ring 1 of the bearing, the top of the snap-fit ​​connector 10 fitting with the interference fit head 13, a sealing ring 12 inside the snap groove 7, and a dust cover 14 on the outer protruding ring 8, the dust cover 14 being adapted to the sealing ring 12 inside the snap groove 7.

[0036] The wear-resistant component includes a mounting groove 3 formed inside the outer ring 1 of the bearing, bearing balls 4 are installed in the mounting groove 3, and ceramic wear-resistant layers 6 are provided on both the outer ring 1 of the bearing and the mounting groove 3. Microcapsule layers 5 are provided in the ceramic wear-resistant layers 6.

[0037] When in use, by adding a sealing ring 12 in the slot 7, a composite sealing structure of snap-fit ​​+ compression sealing is formed, which greatly improves the sealing effect under static and dynamic conditions, and can more effectively prevent the intrusion of fine dust and moisture. It is suitable for harsher working conditions such as textiles, food processing and outdoor equipment.

[0038] By introducing a self-healing microcapsule layer 5 into the ceramic wear-resistant layer 6, when microcracks appear in the coating, the microcapsule layer 5 ruptures and releases a repair agent such as low-viscosity siloxane, which solidifies and fills the crack under frictional heat, further endowing the bearing wear surface with self-healing ability, actively inhibiting crack propagation, and raising the bearing life from passive wear to a new level of active life extension.

[0039] Reference Figure 3-4 A bearing cage 11 is provided between the outer ring 1 and the inner ring 2 of the bearing, and the bearing balls 4 are installed in a ring array inside the bearing cage 11.

[0040] Among them, the sealing ring 12 and dust cover 14 are made of silicone, the bearing ball 4 is made of silicon nitride ceramic ball, the microcapsule layer 5 is made of low viscosity siloxane material, the bearing ball 4, the ceramic wear-resistant layer 6 and the bearing cage 11 form an all-ceramic bearing, and the sealing ring 12 is set with an O-ring.

[0041] In use, the bearing cage 11 supports the bearing balls 4, making the bearing more stable during operation. The bearing balls 4 are installed in a ring array inside the bearing cage 11, which can make the movement smoother and reduce wear.

[0042] By using silicon nitride ceramic balls 4 as bearing balls, and combining them with the bearing ring of the ceramic wear-resistant layer 6 and the bearing cage 11, an all-ceramic or hybrid ceramic bearing is constructed. Furthermore, the silicon nitride balls have low density, high hardness, insulation, and are non-magnetic. This combination can greatly reduce the overall weight and centrifugal force of the bearing, achieve ultra-high speed operation, and is suitable for strong magnetic fields, insulation, or extreme corrosive environments.

[0043] The components such as the outer protrusion ring 8, dust cover 9, snap connector 10, interference fit snap connector 13, and dust cover 14 described in this application are all existing publicly disclosed technologies. Therefore, this application does not elaborate on their specific installation methods and usage processes.

[0044] The implementation principle of a wear-resistant and dustproof bearing in this application embodiment is as follows: When in use, the bearing cage 11 is used to support the bearing balls 4, making the bearing more stable during operation. The bearing balls 4 are installed in a ring array inside the bearing cage 11, which can make the movement smoother and reduce wear.

[0045] By using silicon nitride ceramic balls 4 as bearing balls, and combining them with the bearing ring of the ceramic wear-resistant layer 6 and the bearing cage 11, an all-ceramic or hybrid ceramic bearing is constructed. Furthermore, the silicon nitride balls have low density, high hardness, insulation, and non-magnetic properties. This combination can greatly reduce the overall weight and centrifugal force of the bearing, achieve ultra-high speed operation, and is suitable for strong magnetic fields, insulation, or extreme corrosive environments.

[0046] By introducing a self-healing microcapsule layer 5 into the ceramic wear-resistant layer 6, when microcracks appear in the coating, the microcapsule layer 5 ruptures and releases a repair agent such as low-viscosity siloxane, which solidifies and fills the crack under the action of frictional heat, further endowing the bearing wear surface with self-healing ability, actively inhibiting crack propagation, and raising the bearing life from passive wear to a new level of active life extension.

[0047] By adding a sealing ring 12 inside the slot 7, a composite sealing structure of snap-fit ​​+ compression sealing is formed, which greatly improves the sealing effect under static and dynamic conditions. It can more effectively prevent the intrusion of fine dust and moisture, and is suitable for harsher working conditions such as textiles, food processing, and outdoor equipment.

[0048] 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 wear-resistant and dustproof bearing, comprising an outer bearing ring (1), an inner bearing ring (2), and bearing balls (4) disposed between the outer bearing ring (1) and the inner bearing ring (2), characterized in that, The outer ring (1) of the bearing is provided with a protective mechanism, which includes a dustproof component and a wear-resistant component; The dustproof component includes a dust cover (9) externally mounted on the outer ring (1) of the bearing. The dust cover (9) is provided with a snap connector (10). The snap connector (10) is provided with an outer protruding ring (8). The outer ring (1) of the bearing is provided with a slot (7) adapted to the outer protruding ring (8). The outer ring (1) of the bearing is provided with an interference fit (13). The top of the snap connector (10) is fitted with the interference fit (13). The slot (7) contains a sealing ring (12). The outer protruding ring (8) is covered with a dust cover (14). The dust cover (14) and the sealing ring (12) inside the slot (7) are adapted to each other. The wear-resistant component includes a mounting groove (3) opened on the inner side of the bearing outer ring (1), the bearing ball (4) is installed in the mounting groove (3), and both the bearing outer ring (1) and the mounting groove (3) are provided with a ceramic wear-resistant layer (6), and the ceramic wear-resistant layer (6) is provided with a microcapsule layer (5).

2. The wear-resistant and dustproof bearing according to claim 1, characterized in that: A bearing cage (11) is provided between the outer ring (1) and the inner ring (2) of the bearing, and the bearing balls (4) are arranged in an annular array inside the bearing cage (11).

3. The wear-resistant and dustproof bearing according to claim 2, characterized in that: The sealing ring (12) and dust cover (14) are made of silicone.

4. The wear-resistant and dustproof bearing according to claim 1, characterized in that: The bearing balls (4) are silicon nitride ceramic balls.

5. The wear-resistant and dustproof bearing according to claim 1, characterized in that: The microcapsule layer (5) is made of low-viscosity siloxane material.

6. The wear-resistant and dustproof bearing according to claim 1, characterized in that: The bearing balls (4), ceramic wear-resistant layer (6), and bearing cage (11) form an all-ceramic bearing.

7. The wear-resistant and dustproof bearing according to claim 1, characterized in that: The sealing ring (12) is an O-ring.

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