Bearing provided with lubricating structure

Abstract

The utility model discloses a bearing equipped with a lubricating structure, which comprises an outer ring, a retainer and an inner ring, the outer ring, the retainer and the inner ring are sequentially arranged from outside to inside, a first groove is dug in the outer ring, a second groove is dug in the outer wall of the inner ring, a plurality of balls are equidistantly arranged in the retainer, and a plurality of lubricating structures are arranged in the retainer. A plurality of oil conveying mechanisms are annularly arranged in the retainer, sealing covers are arranged on the oil conveying mechanisms, sealing mechanisms are arranged on one sides of the sealing covers and comprise oil inlets, threaded rods and sealing caps, the oil inlets are formed in one sides of the sealing covers in a digging mode, the threaded rods are connected into the oil inlets through threads, and the sealing caps are connected with the threaded rods through threads. By means of the oil conveying mechanism, the sealing mechanism and a plurality of structures which are arranged in an assisting and matching mode, long-acting lubrication is achieved, the oil storage structure can slowly release lubricating oil / grease, a stable oil film is formed, and direct contact of metal is avoided.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and more specifically, to a bearing equipped with a lubrication structure. 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] Bearings consist of an outer ring, an inner ring, a cage, and balls. The bearing does not have a structure to store lubricating oil inside, which leads to rapid loss of lubricant: the inability to store lubricating oil or grease causes the lubricant to be squeezed out or evaporated in a short time, resulting in direct contact between metal surfaces.

[0004] In view of this, a bearing equipped with a lubrication structure is provided to overcome the above-mentioned defects. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a bearing equipped with a lubrication structure to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A bearing equipped with a lubrication structure includes an outer ring, a cage, and an inner ring, wherein the outer ring, cage, and inner ring are arranged sequentially from the outside to the inside. A first groove is formed in the outer ring, and a second groove is formed on the outer wall of the inner ring. A plurality of balls are equidistantly arranged in the cage. A plurality of oil delivery mechanisms are arranged in a ring in the cage. A sealing cover is provided on the oil delivery mechanism, and a sealing mechanism is provided on one side of the sealing cover.

[0008] Preferably, the oil conveying mechanism includes an oil storage tank, a sintered metal felt, an oil transfer port, and an oil outlet. The oil storage tank is annularly excavated on the outer wall of the retainer. A sintered metal felt is installed inside the oil storage tank. An oil transfer port is excavated inside the oil storage tank. An oil outlet is connected to one side of the oil transfer port, and the oil outlet is excavated in a placement opening provided inside the retainer.

[0009] Preferably, the sealing cap is located on one side of the oil storage tank, and a sealing gasket is provided at the connection between the sealing cap and the oil storage tank.

[0010] Preferably, the sealing mechanism includes an oil inlet, a threaded rod, and a sealing cap. The oil inlet is located on one side of the sealing cap, and the threaded rod is threadedly connected inside the oil inlet. A sealing cap is fixedly connected to one side of the threaded rod.

[0011] This utility model has the following beneficial effects:

[0012] Compared with existing technologies, this bearing equipped with a lubrication structure:

[0013] The oil delivery mechanism, sealing mechanism, and multiple structures work together in coordination:

[0014] Long-lasting lubrication: The oil reservoir structure can slowly release lubricating oil / grease to form a stable oil film and avoid direct metal-to-metal contact. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a front view of a bearing equipped with a lubrication structure according to an embodiment of the present utility model;

[0017] Figure 2 This is an exploded view of a bearing equipped with a lubrication structure according to an embodiment of the present utility model;

[0018] Figure 3 This is an exploded view of the oil delivery mechanism and sealing mechanism of a bearing equipped with a lubrication structure according to an embodiment of the present utility model;

[0019] Figure 4 This is an enlarged, disassembled view of the oil delivery mechanism and sealing mechanism of a bearing equipped with a lubrication structure according to an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. Outer ring; 2. Cage; 3. Inner ring; 4. First groove; 5. Second groove; 6. Ball bearing; 7. Oil delivery mechanism; 8. Sealing cap; 9. Sealing mechanism; 10. Oil storage tank; 11. Metal sintered oil felt; 12. Oil inlet; 13. Oil outlet; 14. Oil inlet; 15. Threaded rod; 16. Sealing cap. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit its scope.

[0023] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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 this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0025] like Figure 1-4 As shown, a bearing with a lubrication structure according to an embodiment of the present invention includes an outer ring 1, a cage 2, and an inner ring 3. The outer ring 1, cage 2, and inner ring 3 are arranged sequentially from the outside to the inside. A first groove 4 is carved into the inner ring 1, and a second groove 5 is carved into the outer wall of the inner ring 3. A plurality of balls 6 are equidistantly arranged in the cage 2. A plurality of oil delivery mechanisms 7 are arranged in a ring in the cage 2. A sealing cover 8 is provided on the oil delivery mechanism 7, and a sealing mechanism 9 is provided on one side of the sealing cover 8.

[0026] In this embodiment, when the bearing needs to be lubricated, the lubricating oil is injected into the oil delivery mechanism 7 in advance through the sealing mechanism 9. The components in the sealing mechanism 9 are locked by threads to ensure that the lubricating oil will not leak through the sealing mechanism 9 in the oil delivery mechanism 7. Then, through the rotation of the bearing, the centrifugal force causes the lubricating oil in the oil delivery mechanism 7 to be thrown out and drip onto the ball 6 for self-lubrication. Example

[0027] The oil conveying mechanism 7 includes an oil storage tank 10, a sintered metal felt 11, an oil transfer port 12, and an oil outlet 13. The oil storage tank 10 is annularly carved into the outer wall of the retainer 2. The sintered metal felt 11 is installed inside the oil storage tank 10. The oil transfer port 12 is carved into the oil storage tank 10. The oil outlet 13 is connected to one side of the oil transfer port 12 and is carved into the placement opening inside the retainer 2. The sealing cover 8 is installed on one side of the oil storage tank 10, and a sealing gasket is provided at the connection between the sealing cover 8 and the oil storage tank 10. Through the rotation of the bearing, the lubricating oil in the sintered metal felt 11 or the oil storage tank 10 is thrown out by centrifugal force and drips onto the ball bearing 6 for self-lubrication.

[0028] The sealing mechanism 9 includes an oil inlet 14, a threaded rod 15, and a sealing cap 16. The oil inlet 14 is cut into one side of the sealing cap 8. The threaded rod 15 is threadedly connected to the oil inlet 14. The sealing cap 16 is fixedly connected to one side of the threaded rod 15. The oil enters the inlet oil 14 through the threaded rod 15, ensuring that the lubricating oil in the oil storage tank 10 will not leak through the oil inlet 14.

[0029] Based on Example 1, the structure and function of the device are further optimized. The metal sintered oil felt 11 has a porous structure: there are a large number of micropores inside, which adsorb lubricating oil through capillary action. Oil storage capacity: the lubricating oil is stored in the pores and needs to be gradually released by external forces (such as thermal expansion, pressure or centrifugal force). Oil throwing mechanism: when the bearing rotates at high speed, the centrifugal force may throw the lubricating oil in the pores outward. The rotation speed is high enough: the centrifugal force needs to overcome the surface tension of the lubricating oil and the capillary force of the pores. Oil felt position: the oil felt is located near the balls (such as the bearing cage or inner ring), and the thrown oil is more likely to reach the balls. Lubricating oil viscosity: low viscosity oil (such as ISO VG 10-32) is easier to be thrown out, while high viscosity oil may require higher rotation speed or temperature assistance.

[0030] In summary, with the help of the above-mentioned technical solution of this utility model, when the bearing needs to be lubricated, the lubricating oil is introduced into the oil storage tank 10 in advance through the inlet oil 14. The lubricating oil is absorbed by the metal sintered oil felt 11, and then enters the inlet oil 14 through the threaded rod 15 via the threaded connection, ensuring that the lubricating oil in the oil storage tank 10 will not leak through the oil inlet 14. Then, through the rotation of the bearing, the centrifugal force causes the lubricating oil in the metal sintered oil felt 11 or the oil storage tank 10 to be thrown out and drip onto the ball bearing 6 for self-lubrication.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bearing equipped with a lubrication structure, characterized in that, It includes an outer ring (1), a retainer (2) and an inner ring (3). The outer ring (1), the retainer (2) and the inner ring (3) are arranged sequentially from the outside to the inside. The outer ring (1) has a first groove (4) carved in it. The outer wall of the inner ring (3) has a second groove (5) carved in it. Multiple balls (6) are arranged at equal intervals in the retainer (2). Multiple oil delivery mechanisms (7) are arranged in a ring in the retainer (2). A sealing cap (8) is provided on the oil delivery mechanism (7). A sealing mechanism (9) is provided on one side of the sealing cap (8).

2. The bearing equipped with a lubrication structure according to claim 1, characterized in that, The oil conveying mechanism (7) includes an oil storage tank (10), a metal sintered oil felt (11), an oil transfer port (12), and an oil outlet (13). The oil storage tank (10) is circumferentially excavated on the outer wall of the retainer (2). The metal sintered oil felt (11) is provided inside the oil storage tank (10). The oil transfer port (12) is excavated inside the oil storage tank (10). The oil transfer port (12) is connected to the oil outlet (13) on one side. The oil outlet (13) is excavated in the placement opening provided inside the retainer (2).

3. A bearing equipped with a lubrication structure according to claim 2, characterized in that, The sealing cap (8) is located on one side of the oil storage tank (10), and a sealing gasket is provided at the connection between the sealing cap (8) and the oil storage tank (10).

4. A bearing equipped with a lubrication structure according to claim 1, characterized in that, The sealing mechanism (9) includes an oil inlet (14), a threaded rod (15) and a sealing cap (16). The oil inlet (14) is cut into one side of the sealing cover (8). The threaded rod (15) is threadedly connected inside the oil inlet (14). The sealing cap (16) is fixedly connected to one side of the threaded rod (15).

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