A bearing structure with double circular arc support
By introducing an external threaded rod and nut into the bearing structure, the bearing becomes removable, solving the problem of traditional bearings being non-removable, reducing roller replacement costs, and improving ease of use and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO HENGCHI PRECISION BEARING CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional double-circular-arc support bearing structures cannot be disassembled after the rollers wear or are damaged, resulting in high overall replacement costs.
The bearing structure is designed with an external threaded rod welded in the groove between the inner and outer rings, and holes and cavities are provided inside the retaining ring. The bearing can be installed and disassembled by the cooperation of the nut and the external threaded rod, which facilitates the replacement of the roller.
The design allows for the detachable bearing, reducing the cost of roller replacement and improving ease of use and stability.
Smart Images

Figure CN224283229U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bearing technology, and in particular relates to a bearing structure with double circular arc support. 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] The double-circular arc support bearing structure currently on the market has the following problems in actual use: Due to the special manufacturing process of the bearing, the traditional double-circular arc support bearing structure cannot be disassembled after it is completed. Therefore, if the internal rollers wear or are damaged during use, the bearing can only be replaced as a whole, which is relatively costly. Summary of the Invention
[0004] The purpose of this invention is to provide a bearing structure with double circular arc support to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A bearing structure with double circular arc support includes an inner ring, an outer ring, and a roller structure. The roller structure is mounted on the surface of the inner ring, and the outer ring is sleeved on the surface of the roller structure. A groove is formed in the inner wall of the outer ring, and an external threaded rod is welded inside the groove. A retaining ring is provided inside the groove, and a hole is formed inside the retaining ring. A cavity is formed at the top of the hole, and the cavity is located inside the retaining ring. The external threaded rod passes through the hole, and one end of the external threaded rod is located inside the cavity. A nut is sleeved on the surface of the external threaded rod, and the nut is located inside the cavity. The side of the retaining ring is attached to the roller structure.
[0006] Preferably, a positioning hole is formed inside the groove, and a positioning rod is fixedly connected to the bottom of the retaining ring, with the positioning rod embedded inside the positioning hole.
[0007] Preferably, the external threaded rod is arranged in a ring shape, the cavity is arranged in a ring shape, and a rubber plug is fitted inside the cavity.
[0008] Preferably, the positioning holes are arranged in a ring shape, and the positioning rods are arranged in a ring shape.
[0009] Preferably, the positioning holes are arranged in a ring shape, and the positioning rods are arranged in a ring shape.
[0010] Preferably, a second groove is formed on the outer ring surface, the second groove is distributed in a ring shape, and an anti-slip post is engaged inside the second groove.
[0011] This utility model discloses a double-arc-supported bearing structure with the following advantages: The double-arc-supported bearing structure involves installing a roller structure on the inner ring surface and fitting an outer ring onto the roller structure surface. A groove is formed on the inner wall of the outer ring, and an externally threaded rod is welded inside the groove. A retaining ring is provided inside the groove, and a hole is formed inside the retaining ring. A cavity is formed at the top of the hole, located inside the retaining ring. The externally threaded rod passes through the hole, with one end of the rod located inside the cavity. A nut is fitted onto the surface of the externally threaded rod, also located inside the cavity. At this point, the side of the retaining ring is in contact with the roller structure. During the use of this bearing, installation and disassembly can be achieved by installing and removing the nut. For installation, the inner ring and roller structure are placed inside the outer ring, followed by the retaining ring placed inside the groove of the outer ring, ensuring the external threaded rod passes through the hole. The nut is then installed on the surface of the external threaded rod until it fits snugly into the hole, thus securing the bearing. For disassembly, the nut is removed, followed by the retaining ring, and then the inner ring and roller structure. This allows for subsequent replacement of the roller, reducing costs during use. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the anti-slip ring structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the retaining ring structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the positioning hole structure of this utility model;
[0017] Figure 5 For the present utility model Figure 4 Enlarged view of section A in the middle.
[0018] The markings in the diagram are as follows: 1. Outer ring; 2. Inner ring; 3. Retaining ring; 4. Roller structure; 5. First slot; 6. Anti-slip ring; 7. Groove; 8. External threaded rod; 9. Hole; 10. Cavity; 11. Nut; 12. Rubber plug; 13. Positioning hole; 14. Positioning rod; 15. Second slot; 16. Anti-slip post. Detailed Implementation
[0019] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0020] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0022] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0023] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0024] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a bearing structure with double circular arc support.
[0025] like Figure 1-5 As shown, this utility model discloses a double-arc-supported bearing structure, including an inner ring 2, an outer ring 1, and a roller structure 4. The roller structure 4 is mounted on the surface of the inner ring 2, and the outer ring 1 is sleeved on the surface of the roller structure 4. A groove 7 is formed in the inner wall of the outer ring 1, and an external threaded rod 8 is welded inside the groove 7. A retaining ring 3 is provided inside the groove 7, and a hole 9 is formed inside the retaining ring 3. A cavity 10 is formed at the top of the hole 9, and the cavity 10 is located inside the retaining ring 3. The external threaded rod 8 passes through the hole 9, and one end of the external threaded rod 8 is located inside the cavity 10. A nut 11 is sleeved on the surface of the external threaded rod 8. By installing the external threaded rod 8 and the nut 11, the bearing can be installed and disassembled during use. During installation, the inner ring 2 and the roller structure 4 can be placed inside the outer ring 1, and then... The retaining ring 3 is placed inside the groove 7 of the outer ring 1, ensuring that the external threaded rod 8 passes through the hole 9. Then, the nut 11 is installed on the surface of the external threaded rod 8 until the nut 11 fits into the hole 9. At this point, the bearing can be installed and fixed. When disassembling, the nut 11 can be removed, and then the retaining ring 3 can be removed. Subsequently, the inner ring 2 and the roller structure 4 can be disassembled, thus allowing for subsequent replacement of the roller. This reduces costs during use. The nut 11 is located inside the cavity 10, and the side of the retaining ring 3 fits into the roller structure 4. By opening the cavity 10, the cavity 10 provides an installation position for the external threaded rod 8 and the nut 11, ensuring that the external threaded rod 8 and the nut 11 are not placed outside the bearing. This prevents the external threaded rod 8 and the nut 11 from affecting the installation of the bearing, making it very convenient to use.
[0026] A positioning hole 13 is opened inside the groove 7, and a positioning rod 14 is fixedly connected to the bottom of the retaining ring 3. The positioning rod 14 is embedded in the positioning hole 13. By installing the positioning rod 14 and opening the positioning hole 13, the positioning rod 14 can be embedded in the positioning hole 13 when installing the retaining ring 3. At this time, the positioning rod 14 and the positioning hole 13 can provide a positioning effect for the installation of the retaining ring 3, making the installation of the retaining ring 3 easier.
[0027] The external threaded rod 8 is arranged in a ring shape, and the cavity 10 is arranged in a ring shape. A rubber plug 12 is fitted inside the cavity 10. By installing the rubber plug 12, the rubber plug 12 is embedded inside the cavity 10, which can provide a hiding effect for the nut 11 and the external threaded rod 8, making it very convenient to use.
[0028] The positioning holes 13 are arranged in a ring shape, and the positioning rods 14 are arranged in a ring shape. The arrangement of the positioning rods 14 and the positioning holes 13 can further improve the stability of the retaining ring 3 after it is installed, resulting in stronger stability during use.
[0029] The inner wall of the inner ring 2 has a first groove 5, which is equidistantly distributed. The anti-slip ring 6 is engaged inside the first groove 5. By installing the anti-slip ring 6, the friction between the inner ring 2 and the installation position can be increased, thereby improving the stability of the bearing after installation.
[0030] A second groove 15 is formed on the surface of the outer ring 1. The second groove 15 is distributed in a ring shape. Anti-slip posts 16 are engaged inside the second groove 15. By installing the anti-slip posts 16, the friction between the outer ring 1 and the installation position can be increased, thereby improving the stability of the bearing after installation.
[0031] The working principle of this double-arc supported bearing structure is as follows: When using this bearing, a roller structure 4 is installed on the surface of the inner ring 2, and an outer ring 1 is fitted onto the surface of the roller structure 4. A groove 7 is formed on the inner wall of the outer ring 1, and an external threaded rod 8 is welded inside the groove 7. A retaining ring 3 is provided inside the groove 7, and a hole 9 is formed inside the retaining ring 3. A cavity 10 is formed at the top of the hole 9, located inside the retaining ring 3. The external threaded rod 8 passes through the hole 9, with one end of the external threaded rod 8 located inside the cavity 10. A nut 11 is fitted onto the surface of the external threaded rod 8, located inside the cavity 10. At this time, the side of the retaining ring 3 is in contact with the roller structure 4. During the use of this bearing, the bearing can be installed and disassembled by installing and removing the nut 11. During installation, the inner ring 3 can be... The inner ring 2 and roller structure 4 are placed inside the outer ring 1. Then, the retaining ring 3 is placed inside the groove 7 of the outer ring 1, ensuring that the external thread rod 8 passes through the hole 9. Next, the nut 11 is installed on the surface of the external thread rod 8 until the nut 11 fits into the hole 9. At this point, the bearing can be installed and fixed. When disassembling, the nut 11 can be removed, then the retaining ring 3 can be removed, and then the inner ring 2 and roller structure 4 can be removed, so that the roller can be replaced later, which can reduce the cost during use. When using the bearing, the anti-slip ring 6 can be embedded in the first slot 5, and the anti-slip post 16 can be embedded in the second slot 15. At this time, the anti-slip ring 6 and the anti-slip post 16 can increase the stability between the bearing and the installation position, ensuring the stability of the bearing during use. Finally, the bearing can be installed in a suitable position.
[0032] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A bearing structure with double circular arc support, comprising an inner ring (2), an outer ring (1), and a roller structure (4), characterized in that: The inner ring (2) is fitted with a roller structure (4), the outer ring (1) is sleeved on the surface of the roller structure (4), the inner wall of the outer ring (1) is provided with a groove (7), the groove (7) is welded with an external thread rod (8), the groove (7) is provided with a retaining ring (3), the retaining ring (3) is provided with a hole (9), the top of the hole (9) is provided with a cavity (10), the cavity (10) is located inside the retaining ring (3), the external thread rod (8) passes through the hole (9), one end of the external thread rod (8) is located inside the cavity (10), the surface of the external thread rod (8) is fitted with a nut (11), the nut (11) is located inside the cavity (10), and the side of the retaining ring (3) is attached to the roller structure (4).
2. The bearing structure with double circular arc support according to claim 1, characterized in that: A positioning hole (13) is opened inside the groove (7), and a positioning rod (14) is fixedly connected to the bottom of the retaining ring (3). The positioning rod (14) is embedded inside the positioning hole (13).
3. The bearing structure with double circular arc support according to claim 1, characterized in that: The external threaded rod (8) is arranged in a ring shape, the cavity (10) is arranged in a ring shape, and a rubber plug (12) is fitted inside the cavity (10).
4. The bearing structure with double circular arc support according to claim 2, characterized in that: The positioning holes (13) are arranged in a ring shape, and the positioning rods (14) are arranged in a ring shape.
5. The bearing structure with double circular arc support according to claim 1, characterized in that: The inner wall of the inner ring (2) has a first slot (5) which is equidistantly distributed and has an anti-slip ring (6) inside.
6. The bearing structure with double circular arc support according to claim 1, characterized in that: The outer ring (1) has a second slot (15) on its surface. The second slot (15) is arranged in a ring shape, and the anti-slip post (16) is engaged inside the second slot (15).