Tapered roller bearing

Abstract

The utility model relates to the technical field of tapered roller bearings, and discloses a tapered roller bearing which comprises a bearing outer ring, a bearing inner ring is arranged in the bearing outer ring, a frame-shaped retainer is sleeved on the surface of the bearing inner ring, and the frame-shaped retainer is positioned between the inner surface of the bearing outer ring and the surface of the frame-shaped retainer. The tapered roller is arranged in the frame-shaped retainer, and the first oil storage groove and the oil guide groove are arranged, so that when the tapered roller needs to be lubricated, lubricating oil in the first oil storage groove can be guided into the space between the bearing outer ring and the tapered roller at a relatively slow and uniform speed through the oil guide groove, and the tapered roller is continuously lubricated; and the problem that lubricating oil is wasted due to the fact that more lubricating oil flows out of the interior of the bearing when the lubricating oil is directly poured into the bearing is solved, and use is relatively convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tapered roller bearings, in particular to a tapered roller bearing. Background Art

[0002] Tapered roller bearings are separable bearings with tapered raceways on both the inner and outer rings. These bearings are classified by the number of roller rows, including single-row, double-row, and four-row tapered roller bearings. Single-row tapered roller bearings can withstand radial loads and unidirectional axial loads. When a bearing is subjected to radial loads, an axial force component is generated, requiring a second bearing capable of balancing the opposing axial force.

[0003] Currently, some existing tapered roller bearings reduce the friction between the tapered roller and the outer ring of the bearing by lubricating the tapered roller, reducing the wear of the tapered roller and increasing the service life of the tapered roller bearing. However, the current lubrication method is generally to pour the lubricating oil directly into the interior of the bearing. This lubrication method will cause a relatively large amount of lubricating oil to flow out from the interior of the bearing, resulting in waste of lubricating oil and relatively inconvenient use. Therefore, we propose a tapered roller bearing to solve or improve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a tapered roller bearing that solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: it includes a bearing outer ring, a first oil storage tank is opened inside the bearing outer ring, an oil guide tank is opened on the inner surface of the bearing outer ring, a second oil storage tank is opened on the inner surface of the bearing outer ring, the second oil storage tank is located on one side of the bottom of the oil guide tank, and an oil filling hole is opened on the top of the bearing outer ring.

[0006] Furthermore, a bearing inner ring is arranged inside the bearing outer ring, and a frame-type retaining frame is sleeved on the surface of the bearing inner ring.

[0007] Furthermore, tapered rollers are arranged inside the frame-type retainer, and the tapered rollers are arranged in a plurality of groups on a circumferential surface inside the frame-type retainer.

[0008] Furthermore, the inner surface of the second oil storage tank is provided with a certain inclination angle.

[0009] Furthermore, a plurality of oil guide grooves are arranged circumferentially on the inner surface of the bearing outer ring.

[0010] Furthermore, the bottom of the first oil storage tank is provided with an inclined surface with a certain inclination angle.

[0011] Compared with the prior art, the present invention has the following beneficial effects: by providing the first oil storage tank and the oil guide tank, the lubricating oil inside the first oil storage tank can be introduced into between the outer ring of the bearing and the tapered roller through the oil guide tank at a relatively slow and uniform speed when the tapered roller needs to be lubricated, thereby continuously lubricating the tapered roller, avoiding the problem of directly pouring the lubricating oil into the interior of the bearing, which causes a relatively large amount of lubricating oil to flow out from the interior of the bearing and cause waste of lubricating oil, and is relatively convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the tapered roller structure of the utility model;

[0014] Figure 3 This is a schematic structural diagram of the first oil storage tank of the utility model;

[0015] Figure 4 This is a schematic diagram of the oil guide groove structure of the utility model.

[0016] In the figure: 1. Bearing outer ring; 2. Frame-type retainer; 3. Oil guide groove; 4. Tapered roller; 5. Oil filling hole; 6. Bearing inner ring; 7. First oil storage tank; 8. Second oil storage tank. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-4, including a bearing outer ring 1, a bearing inner ring 6 is arranged inside the bearing outer ring 1, and a frame-type retainer 2 is provided on the surface of the bearing inner ring 6. The frame-type retainer 2 is located between the inner surface of the bearing outer ring 1 and the surface of the frame-type retainer 2. The frame-type retainer 2 is a currently known prior art and will not be described in detail here. A tapered roller 4 is provided inside the frame-type retainer 2. The tapered roller 4 is arranged in a plurality of groups on the inner circumference of the frame-type retainer 2. The tapered roller 4 is located between the frame-type retainer 2 and the bearing outer ring 1 and the surface of the tapered roller 4 contacts the surface of the frame-type retainer 2 and the bearing outer ring 1. A first oil storage tank 7 is opened inside the bearing outer ring 1, and the bottom of the first oil storage tank 7 is provided with an inclined surface with a certain inclination angle, so as to facilitate the lubricating oil inside the first oil storage tank 7 to flow to the bottom of the first oil storage tank 7. The oil guide groove 3 is opened on the inner surface of the bearing outer ring 1, and the oil guide groove 3 is arranged in a plurality of groups on the circumference of the inner surface of the bearing outer ring 1. The internal space of the plurality of groups of oil guide grooves 3 is aligned with the inner space of the first oil storage tank 7. The inner space is connected. When the lubricating oil flows out from the inside of the oil guide groove 3, it will flow into the space between the bearing outer ring 1 and the tapered roller 4, so that when the tapered roller 4 rotates, the lubricating oil adheres to the surface of the tapered roller 4, thereby lubricating the tapered roller 4. The second oil storage groove 8 is opened on the inner surface of the bearing outer ring 1. The second oil storage groove 8 is located on one side of the bottom of the oil guide groove 3. The inner surface of the second oil storage groove 8 is provided with a certain inclination angle. When excess lubricating oil flows along the inner wall of the bearing outer ring 1 to the inside of the second oil storage groove 8, the second oil storage groove 8 can temporarily store the lubricating oil. At the same time, the inclination angle of the inner surface of the second oil storage groove 8 can also prevent the lubricating oil from flowing directly out of the inside of the second oil storage groove 8 by gravity. At the same time, when the lubricating oil in the second oil storage groove 8 is stored to a certain amount, the tapered roller 4 rotates on one side of the second oil storage groove 8 to make a certain amount of lubricating oil in the second oil storage groove 8 adhere to the surface of the tapered roller 4, thereby lubricating the surface of the tapered roller 4, further reducing the waste of lubricating oil and improving the utilization rate of lubricating oil.

[0019] The oil filling hole 5 is opened on the top of the bearing outer ring 1. The oil filling hole 5 is connected to the internal space of the first oil storage tank 7. The lubricating oil can be filled into the interior of the first oil storage tank 7 through the oil filling hole 5. At the same time, the oil filling hole 5 can also serve as an exhaust hole to connect the internal space of the first oil storage tank 7 with the outside, so as to prevent the lubricating oil in the first oil storage tank 7 from being unable to flow out from one side of the oil guide groove 3 due to the internal pressure of the first oil storage tank 7.

[0020] Working principle: when the tapered roller 4 needs to be lubricated, lubricating oil can be injected into the first oil storage tank 7 through the oil filling hole 5, so that the lubricating oil flows into the gap between the bearing outer ring 1 and the tapered roller 4 through the oil guide groove 3. At the same time, because the opening of the oil guide groove 3 is relatively small, the lubricating oil inside the first oil storage tank 7 will be introduced into the gap between the bearing outer ring 1 and the tapered roller 4 through the oil guide groove 3 at a relatively slow and uniform speed, thereby achieving continuous lubrication of the tapered roller 4. At the same time, it also avoids the problem of directly pouring the lubricating oil into the interior of the bearing, which causes relatively more lubricating oil to flow out from the interior of the bearing, resulting in waste of lubricating oil. It is relatively convenient to use.

[0021] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tapered roller bearing, characterized in that: comprising a bearing outer ring (1); A first oil storage tank (7), the first oil storage tank (7) is opened inside the bearing outer ring (1); An oil guide groove (3), the oil guide groove (3) is provided on the inner surface of the bearing outer ring (1); A second oil storage tank (8), the second oil storage tank (8) is opened on the inner surface of the bearing outer ring (1), and the second oil storage tank (8) is located on one side of the bottom of the oil guide groove (3); The oil filling hole (5) is opened on the top of the bearing outer ring (1).

2. A tapered roller bearing according to claim 1, characterized in that: A bearing inner ring (6) is arranged inside the bearing outer ring (1), and a frame-type retaining frame (2) is sleeved on the surface of the bearing inner ring (6).

3. A tapered roller bearing according to claim 2, characterized in that: Conical rollers (4) are arranged inside the frame-type retaining frame (2), and the conical rollers (4) are arranged in a plurality of groups on the inner circumference of the frame-type retaining frame (2).

4. The tapered roller bearing according to claim 1, characterized in that: The inner surface of the second oil storage tank (8) is provided with a certain inclination angle.

5. The tapered roller bearing according to claim 1, characterized in that: A plurality of oil guide grooves (3) are arranged in a circumferential arrangement on the inner surface of the bearing outer ring (1).

6. The tapered roller bearing according to claim 1, characterized in that: The bottom of the first oil storage tank (7) is provided with an inclined surface with a certain inclination angle.

Images