Low-friction high-strength copper alloy self-lubricating bearing structure

Abstract

The utility model discloses a low-friction high-strength copper alloy self-lubricating bearing structure, which comprises a bearing outer ring and a bearing inner ring, a ball cavity is arranged between the bearing outer ring and the bearing inner ring, a bearing ball is accommodated in the ball cavity, a friction roller is rotatably connected in the bearing outer ring, and the friction roller is arranged in the bearing inner ring. The bearing balls are matched with the friction roller, and an oil way for lubricating the bearing is formed in one side of the bearing outer ring. According to the self-lubricating bearing disclosed by the utility model, the ball cavity is formed between the bearing outer ring and the bearing inner ring, the bearing balls are accommodated in the ball cavity, the friction roller is rotationally connected in the bearing outer ring, and the bearing balls are matched with the friction roller, so that compared with the traditional self-lubricating bearing, the point-to-face rolling friction between the balls and the bearing outer ring is adopted, and the self-lubricating bearing has the advantages that the friction force is reduced; and lower frictional resistance of equipment can be realized through point-to-point rolling friction between the bearing balls and the friction rollers, so that the use precision of the bearing is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of self-lubricating bearing structures, in particular to a low-friction high-strength copper alloy self-lubricating bearing structure. Background Art

[0002] Self-lubricating bearings are a special type of bearing typically used in applications requiring reduced friction and wear. These bearings utilize self-lubricating materials, such as polytetrafluoroethylene (PTFE), graphite, and certain synthetic resins, enabling them to operate without additional lubrication. The advantages of self-lubricating spherical plain bearings include low maintenance requirements, long life, and excellent wear resistance, making them suitable for a variety of applications, including automotive, machinery, and aviation.

[0003] Self-lubricating bearings rely on the inherent lubricating properties of their materials, reducing reliance on traditional grease or oil. Furthermore, they maintain excellent performance in high-load and high-temperature environments, extending their service life. Furthermore, the bearing inner ring is typically designed to be directly replaceable, simplifying installation and maintenance.

[0004] Self-lubricating bearings are widely used in mechanical equipment, automobile chassis, robot joints, industrial automation equipment and other fields, and are particularly suitable for occasions where regular maintenance is difficult.

[0005] However, in the prior art, there is still room for improvement in the point-to-point rolling friction between the ball and the outer ring of the bearing. In actual use, this can easily lead to bearing fatigue, thereby shortening the service life of the bearing. Utility Model Content

[0006] The purpose of the present invention is to provide a low-friction, high-strength copper alloy self-lubricating bearing structure to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a low-friction, high-strength copper alloy self-lubricating bearing structure, comprising a bearing outer ring and a bearing inner ring, a ball cavity being provided between the bearing outer ring and the bearing inner ring, bearing balls being accommodated in the ball cavity, a friction roller being rotatably connected to the interior of the bearing outer ring, the bearing balls being adapted to the friction roller, and an oil passage for bearing lubrication being provided on one side of the bearing outer ring.

[0008] As a further solution of the present invention: a low-friction, high-strength copper alloy self-lubricating bearing structure, wherein a friction roller cavity for accommodating the rotation of the friction roller is opened inside the outer ring of the bearing, an oil cavity is opened on one side of the outer ring of the bearing, one side of the oil cavity is connected to the friction roller cavity through a connecting hole, and a plug body is movably connected to the other side of the oil cavity, and the oil circuit includes a lubrication passage consisting of the oil cavity, the connecting hole, the friction roller cavity and the ball cavity.

[0009] As a further solution of the present invention: a low-friction high-strength copper alloy self-lubricating bearing structure, wherein the bearing balls and friction rollers are distributed in a ring array.

[0010] As a further solution of the present invention: a low-friction high-strength copper alloy self-lubricating bearing structure, the plug body includes a first oil plug and a second oil plug, the first oil plug or the second oil plug is arranged on both sides of the bearing outer ring and respectively seals the oil circuit.

[0011] As a further solution of the present invention: a low-friction high-strength copper alloy self-lubricating bearing structure, the first oil plug and the second oil plug are arranged in a cross-shaped manner.

[0012] As a further solution of the present invention: a low-friction high-strength copper alloy self-lubricating bearing structure, the outer sides of the bearing balls and the friction roller are both polished and then chrome-plated.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. Since a ball cavity is opened between the bearing outer ring and the bearing inner ring, the interior of the ball cavity accommodates bearing balls, and the interior of the bearing outer ring is rotatably connected to a friction roller, the bearing balls are adapted to the friction roller. Compared with the traditional self-lubricating bearing with point-to-point rolling friction between the balls and the bearing outer ring, the point-to-point rolling friction between the bearing balls and the friction roller can achieve lower friction resistance of the equipment, thereby effectively improving the use accuracy of the bearing.

[0015] 2. Since an oil circuit for bearing lubrication is provided on one side of the bearing outer ring, a friction roller cavity for accommodating the rotation of the friction roller is provided inside the bearing outer ring, an oil cavity is provided on one side of the bearing outer ring, one side of the oil cavity is connected with the friction roller cavity through a connecting hole, and a plug is movably connected to the other side of the oil cavity. The oil circuit includes a lubrication passage consisting of the oil cavity, the connecting hole, the friction roller cavity and the ball cavity. Therefore, the bearing balls and the friction roller can be lubricated and maintained through the oil circuit, thereby further reducing the friction resistance of the equipment and effectively extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the schematic diagrams of the overall structure of a low-friction, high-strength copper alloy self-lubricating bearing structure of the utility model;

[0017] Figure 2 This is the second schematic diagram of the overall structure of a low-friction, high-strength copper alloy self-lubricating bearing structure of the utility model;

[0018] Figure 3 This is a cross-sectional view of the overall structure of a low-friction, high-strength copper alloy self-lubricating bearing structure of the utility model;

[0019] Figure 4 This is an assembly diagram of the bearing balls and friction rollers in a low-friction, high-strength copper alloy self-lubricating bearing structure of the utility model;

[0020] Figure 5 This utility model is a low-friction, high-strength copper alloy self-lubricating bearing structure Figure 2 Enlarged view of point A in the middle;

[0021] In the figure: 1. Bearing outer ring; 2. Bearing inner ring; 3. Bearing ball; 4. First oil plug; 5. Second oil plug; 6. Ball cavity; 7. Friction roller; 8. Friction roller cavity; 9. Connecting hole; 10. Oil cavity; 11. Plug body. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or connected in an integral manner; they can be mechanically connected or electrically connected; they can be directly connected, indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The following describes the embodiments of the present invention based on its overall structure.

[0024] In an embodiment of the utility model, a low-friction, high-strength copper alloy self-lubricating bearing structure includes a bearing outer ring 1 and a bearing inner ring 2. A ball cavity 6 is provided between the bearing outer ring 1 and the bearing inner ring 2. The interior of the ball cavity 6 accommodates bearing balls 3. A friction roller 7 is rotatably connected to the interior of the bearing outer ring 1. The bearing balls 3 are adapted to the friction roller 7. An oil path for bearing lubrication is provided on one side of the bearing outer ring 1.

[0025] Since a ball cavity 6 is provided between the bearing outer ring 1 and the bearing inner ring 2, the ball cavity 6 accommodates the bearing balls 3, and the inner part of the bearing outer ring 1 is rotatably connected to the friction roller 7, the bearing balls 3 are adapted to the friction roller 7. Compared with the traditional self-lubricating bearing with point-to-point rolling friction between the balls and the bearing outer ring, the bearing balls 3 and the friction roller 7 can achieve lower friction resistance of the equipment through point-to-point rolling friction, thereby effectively improving the use accuracy of the bearing.

[0026] Since an oil circuit for bearing lubrication is provided on one side of the bearing outer ring 1, a friction roller cavity 8 for accommodating the rotation of the friction roller 7 is provided inside the bearing outer ring 1, and an oil chamber 10 is provided on one side of the bearing outer ring 1. One side of the oil chamber 10 is connected to the friction roller cavity 8 through a connecting hole 9, and a plug body 11 is movably connected to the other side of the oil chamber 10. The oil circuit includes a lubrication passage consisting of the oil chamber 10, the connecting hole 9, the friction roller cavity 8 and the ball cavity 6. Therefore, the bearing balls 3 and the friction roller 7 can be lubricated and maintained through the oil circuit, thereby further reducing the friction resistance of the equipment and effectively extending the service life of the equipment.

[0027] As a further solution of the present invention: a low-friction, high-strength copper alloy self-lubricating bearing structure, the interior of the bearing outer ring 1 is provided with a friction roller cavity 8 for accommodating the rotation of the friction roller 7, and one side of the bearing outer ring 1 is provided with an oil cavity 10, one side of the oil cavity 10 is connected to the friction roller cavity 8 through a connecting hole 9, and the other side of the oil cavity 10 is movably connected to a plug body 11, and the oil circuit includes a lubrication passage consisting of the oil cavity 10, the connecting hole 9, the friction roller cavity 8 and the ball cavity 6.

[0028] As a further solution of the present invention: a low-friction high-strength copper alloy self-lubricating bearing structure, the bearing balls 3 and the friction rollers 7 are both distributed in an annular array.

[0029] As a further solution of the present invention: a low-friction high-strength copper alloy self-lubricating bearing structure, the plug body 11 includes a first oil plug 4 and a second oil plug 5, the first oil plug 4 or the second oil plug 5 is arranged on both sides of the bearing outer ring 1 and respectively seals the oil circuit.

[0030] As a further solution of the present invention: a low-friction high-strength copper alloy self-lubricating bearing structure, the first oil plug 4 and the second oil plug 5 are arranged in a cross-shaped manner.

[0031] As a further solution of the present invention: a low-friction high-strength copper alloy self-lubricating bearing structure, the outer sides of the bearing balls 3 and the friction roller 7 are both polished and then chrome-plated.

[0032] The working principle of the present invention is as follows: since a ball cavity 6 is provided between the bearing outer ring 1 and the bearing inner ring 2, the interior of the ball cavity 6 accommodates the bearing balls 3, the interior of the bearing outer ring 1 is rotatably connected with a friction roller 7, and the bearing balls 3 are adapted to the friction roller 7. Compared with the traditional self-lubricating bearing with point-to-point rolling friction between the balls and the bearing outer ring, the bearing balls 3 and the friction roller 7 can achieve lower friction resistance of the equipment through point-to-point rolling friction, thereby effectively improving the use accuracy of the bearing.

[0033] Since an oil circuit for bearing lubrication is provided on one side of the bearing outer ring 1, a friction roller cavity 8 for accommodating the rotation of the friction roller 7 is provided inside the bearing outer ring 1, and an oil chamber 10 is provided on one side of the bearing outer ring 1. One side of the oil chamber 10 is connected to the friction roller cavity 8 through a connecting hole 9, and a plug body 11 is movably connected to the other side of the oil chamber 10. The oil circuit includes a lubrication passage consisting of the oil chamber 10, the connecting hole 9, the friction roller cavity 8 and the ball cavity 6. Therefore, the bearing balls 3 and the friction roller 7 can be lubricated and maintained through the oil circuit, thereby further reducing the friction resistance of the equipment and effectively extending the service life of the equipment.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A low-friction, high-strength copper alloy self-lubricating bearing structure, characterized in that: The invention comprises a bearing outer ring (1) and a bearing inner ring (2), wherein a ball cavity (6) is provided between the bearing outer ring (1) and the bearing inner ring (2), wherein bearing balls (3) are accommodated in the ball cavity (6), a friction roller (7) is rotatably connected to the interior of the bearing outer ring (1), wherein the bearing balls (3) are adapted to the friction roller (7), and an oil passage for bearing lubrication is provided on one side of the bearing outer ring (1).

2. A low-friction, high-strength copper alloy self-lubricating bearing structure according to claim 1, characterized in that: The bearing outer ring (1) is provided with a friction roller cavity (8) for accommodating the rotation of the friction roller (7), and an oil cavity (10) is provided on one side of the bearing outer ring (1). One side of the oil cavity (10) is connected to the friction roller cavity (8) through a connecting hole (9), and the other side of the oil cavity (10) is movably connected to a plug body (11). The oil circuit includes a lubrication passage consisting of the oil cavity (10), the connecting hole (9), the friction roller cavity (8) and the ball cavity (6).

3. The low-friction, high-strength copper alloy self-lubricating bearing structure according to claim 2, characterized in that: The bearing balls (3) and friction rollers (7) are distributed in an annular array.

4. The low-friction, high-strength copper alloy self-lubricating bearing structure according to claim 3, characterized in that: The plug body (11) comprises a first oil plug (4) and a second oil plug (5); the first oil plug (4) or the second oil plug (5) is disposed on both sides of the bearing outer ring (1) and respectively blocks the oil passage.

5. The low-friction, high-strength copper alloy self-lubricating bearing structure according to claim 4, characterized in that: The first oil plug (4) and the second oil plug (5) are arranged in a cross-like manner.

6. The low-friction, high-strength copper alloy self-lubricating bearing structure according to claim 5, characterized in that: The outer sides of the bearing balls (3) and the friction roller (7) are both polished and then chrome-plated.

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