A bearing hub

Abstract

The utility model discloses a bearing hub, comprising a drum body, a hub shaft, and a faceplate. A flange bearing is respectively provided at both ends of the hub shaft, a limiting step is respectively provided at both ends of the hub shaft, one end face of the flange bearing abuts against the limiting step, the other end face of the flange bearing is provided with a reverse edge ring, the end face of the reverse edge ring abuts against the outer side face of the faceplate, a limiting through hole is provided in each faceplate, a fan-shaped sealing ring is provided in the limiting through hole, the fan-shaped sealing ring is sleeved outside the flange bearing, and the inner side wall of the fan-shaped sealing ring abuts against the outer circumference of the flange bearing, a sealing ring is also sleeved outside the flange bearing, the outer wall of the sealing ring abuts against the inner wall of the limiting through hole, a stop cap for pressing the flange bearing into the faceplate is provided outside each flange bearing, a nut threadedly connected to the hub shaft is provided on the outer side of the stop cap, and the nut is used to fix and limit the stop cap. The structure can limit the bearing while improving stability.

Description

Technical Field

[0001] The utility model belongs to the relevant technical field of bicycle parts, and particularly relates to a bearing hub. Background Art

[0002] The hub, commonly known as the "hub barrel", is the barrel outside the axle that connects to the spokes, usually called the axle skin. Depending on the number of spokes, there are generally 3-way and 5-way arrangements. There are two types of hubs: iron hubs and aluminum hubs.

[0003] At present, iron hubs are widely used in children's bicycles and low-end bicycles in the market. As more and more people come into contact with mid-to-high-end bicycles, they experience a better riding experience. Since high-end hubs use bearings as transmission parts, while ordinary iron hubs are an assembly of steel balls 1, bead cups 2, shaft stops 3, hub shafts 4 of the plain axis, discs 5 and nuts 6, for example Figure 1 As shown, the flexibility of such a structure is not as good as that of a bearing, so the riding experience is relatively poor. Therefore, there is a wear-resistant bicycle sealed bearing hub as disclosed in Patent No. 202221707366.9, which includes a bicycle hub body, adapters are provided at both ends of the bicycle hub body, a hub shaft is passed through the bicycle hub body and the adapter, a sealed bearing mechanism is installed inside the adapter, the sealed bearing mechanism is sleeved on the hub shaft, and an axle stop for positioning the sealed bearing mechanism is installed on the hub shaft. The utility model facilitates the use of the entire hub through the coordinated use of the bicycle hub body, the hub shaft, the axle stop and the sealed bearing mechanism. The setting of the axle stop fixes the sealed bearing mechanism to a certain extent, thereby increasing the firmness of the entire hub. However, after long-term use, the bearing on the main shaft of the hub of this structure is prone to lateral displacement, resulting in eccentricity of the hub, which seriously affects the stability of the wheel, so it needs to be improved. Utility Model Content

[0004] The utility model aims to provide a bearing hub, which solves the problems that the existing hub bearing is easy to deviate and affect the stability of the wheel, and the sealing performance is poor.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a bearing hub, comprising a drum body, a hub shaft is arranged in the drum body, a face disc is sleeved on both ends of the drum body, a flange bearing is respectively provided at both ends of the hub shaft, and the flange bearing sleeve is arranged outside the hub shaft, and a limiting step is respectively provided at both ends of the hub shaft, one end face of the flange bearing is against the limiting step, and the other end face of the flange bearing is provided with a reverse edge ring, and the end face of the reverse edge ring is against the outer side face of the face disc, a limiting through hole is provided in each face disc, a fan-shaped sealing ring is provided in the limiting through hole, the fan-shaped sealing ring is sleeved on the outside of the flange bearing, and the inner side wall of the fan-shaped sealing ring is against the outer circumference of the flange bearing, a sealing ring is also sleeved on the outside of the flange bearing, and the outer wall of the sealing ring is against the inner wall of the limiting through hole, and a stop cap for pressing the flange bearing into the face disc is provided outside each flange bearing, and a nut threadedly connected to the hub shaft is provided on the outer side of the stop cap, and the nut is used to fix and limit the stop cap.

[0007] Preferably, a wear-resistant ring is provided between the limiting step and the end surface of the flange bearing.

[0008] Preferably, an anti-slip gasket is provided between the end surface of the flange bearing and the stop cap.

[0009] Preferably, a refueling hole communicating with the interior of the flange bearing is provided on an end surface of the flange bearing close to the stop cap.

[0010] Preferably, the stop cap is provided with a plug for sealing the refueling hole.

[0011] Preferably, an insert ring inserted into the face disc is provided on one side of the anti-edge ring.

[0012] The utility model has the following beneficial effects: the overall strength of the structure is stronger, the stability and sealing are better, and the lateral displacement of the bearing can be avoided, thereby ultimately improving the driving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a hub in the prior art;

[0014] Figure 2 is a schematic diagram of the internal cross section of a bearing hub in Example 1;

[0015] Figure 3 for Figure 2 A magnified image of point A;

[0016] Figure 4 is a schematic diagram of the internal cross section of a bearing hub in Example 2;

[0017] Figure 5 for Figure 4 The enlarged view of point B;

[0018] Figure 6 is a schematic diagram of the internal cross section of a bearing hub in Example 3;

[0019] Figure 7 It is a partial structural schematic diagram of a bearing hub in Example 4 regarding a flange bearing and a retaining cap;

[0020] Figure 8 This is a schematic diagram of the component structure of a bearing hub in Example 5.

[0021] Reference numerals:

[0022] Steel ball 1, bead bowl 2, shaft stop 3, hub shaft 4, face plate 5, nut 6, flange bearing 7, anti-edge ring 701, oiling hole 702, insert ring 703, drum body 8, limit step 9, limit through hole 10, fan-shaped sealing ring 11, stop cap 12, wear-resistant ring 13, anti-slip gasket 14, plug 15, sealing ring 16. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0024] See also Figure 2-3As shown, a bearing hub disclosed in this embodiment includes a drum body 8, a hub shaft 4 is arranged in the drum body 8, a face plate 5 is sleeved on both ends of the drum body 8, a flange bearing 7 is respectively provided at both ends of the hub shaft 4, and the flange bearing 7 is sleeved outside the hub shaft 4, and a limiting step 9 is respectively provided at both ends of the hub shaft 4, one end face of the flange bearing 7 is against the limiting step 9, and the other end face of the flange bearing 7 is provided with a counter-edge ring 701, and the end face of the counter-edge ring 701 is against the outer side face of the face plate 5, and a flange bearing 701 is provided in each face plate 5. There is a limiting through hole 10, in which a fan-shaped sealing ring 11 is arranged, and the fan-shaped sealing ring 11 is sleeved on the outside of the flange bearing 7, and the inner side wall of the fan-shaped sealing ring 11 abuts against the outer circumference of the flange bearing 7. A sealing ring 16 is also sleeved on the outside of the flange bearing 7, and the outer wall of the sealing ring 16 abuts against the inner wall of the limiting through hole 10. A stop cap 12 for pressing the flange bearing 7 into the face plate 5 is arranged outside each flange bearing 7, and a nut 6 threadedly connected to the hub shaft 4 is arranged on the outer side of the stop cap 12, and the nut 6 is used to fix and limit the stop cap 12.

[0025] In this embodiment, the flange bearing 7 includes an outer shell and a bearing body rotatably connected to the outer shell. At the same time, two limiting steps 9 are integrally formed on both sides of the hub shaft 4, and a flange bearing 7 is adopted, and a counter-edge ring 701 is provided on one side of the flange bearing 7. When the flange bearing 7 is inserted into the disc 5, one end face of the flange bearing 7 abuts against the limiting step 9, and the other end abuts against the outer end of the disc 5, thereby achieving tight limiting, and finally achieving the limiting effect on the flange bearing 7. In order to further improve the sealing, a sealing ring 16 and a fan-shaped sealing ring 11 are provided at the connection between the disc 5 and the flange bearing 7 to further improve the sealing. Compared with the existing structure of the hub shaft 4, disc 5 and nut 6 assembly using steel balls 1, bead bowls 2, shaft stops 3, and smooth axes, this structure has stronger overall strength, better stability and sealing, and can also prevent lateral displacement of the bearing, thereby ultimately improving driving stability. Example 2

[0026] See also Figure 4-Figure 5 As shown, the general structure of a bearing hub disclosed in this embodiment is the same as that of Embodiment 1, except that, as a preference, a wear-resistant ring 13 is provided between the limit step 9 and the end face of the flange bearing 7. By providing the wear-resistant ring 13, the problem of friction and wear between the side and the limit step 9 when the bearing body inside the flange bearing 7 rotates is reduced. Example 3

[0027] See also Figure 6As shown, the general structure of a bearing hub disclosed in this embodiment is the same as that of embodiment 1, except that, as a preference, an anti-skid gasket 14 is provided between the end face of the flange bearing 7 and the stop cap 12, and the anti-skid property is improved by adding the anti-skid gasket 14. Example 4

[0028] See also Figure 7 As shown, the general structure of a bearing hub disclosed in this embodiment is the same as that of embodiment 1, except that, as a preference, a refueling hole 702 connected to the interior of the flange bearing 7 is provided on an end face of the flange bearing 7 close to the stop cap 12 .

[0029] Preferably, the stop cap 12 is provided with a plug 15 for sealing the refueling hole 702. The refueling hole 702 is additionally provided on the flange bearing 7 through the above-mentioned structure, so that lubricating oil can be added to the bearing body inside the flange bearing 7 at a later stage, so as to avoid noise during operation when there is no oil inside the bearing body inside the flange bearing 7, and also ensure the smoothness of the rotation of the bearing body inside the flange bearing 7. At a later stage, it is only necessary to loosen the nut 6, move the stop cap 12, and expose the refueling hole 702. Example 5

[0030] See also Figure 8 As shown, the general structure of a bearing hub disclosed in this embodiment is the same as that of embodiment 1, except that, as a preference, an insert ring 703 inserted into the face disc 5 is provided on one side of the anti-edge ring 701. Through the structural arrangement of this embodiment, the fixing and limiting effect on the flange bearing 7 is further improved.

[0031] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A bearing hub, comprising a drum body (8), a hub shaft (4) is arranged inside the drum body (8), and a face plate (5) is sleeved on both ends of the drum body (8), characterized in that: A flange bearing (7) is provided at each end of the hub shaft (4), and the flange bearing (7) is sleeved outside the hub shaft (4). A limiting step (9) is provided at each end of the hub shaft (4). One end face of the flange bearing (7) abuts against the limiting step (9). The other end face of the flange bearing (7) is provided with a counter-edge ring (701). The end face of the counter-edge ring (701) abuts against the outer side face of the face disc (5). A limiting through hole (10) is provided in each face disc (5), and a fan-shaped sealing ring (11) is provided in the limiting through hole (10). The fan-shaped sealing ring (11) is sleeved on the outside of the flange bearing (7), and the inner side wall of the fan-shaped sealing ring (11) abuts against the outer circumference of the flange bearing (7). A sealing ring (16) is also sleeved on the outside of the flange bearing (7), and the outer wall of the sealing ring (16) abuts against the inner wall of the limiting through hole (10). A stopper cap (12) for pressing the flange bearing (7) into the faceplate (5) is arranged outside each flange bearing (7), and a nut (6) threadedly connected to the hub shaft (4) is arranged on the outer side of the stopper cap (12), and the nut (6) is used to fix and limit the stopper cap (12).

2. A bearing hub according to claim 1, characterized in that: A wear-resistant ring (13) is provided between the limiting step (9) and the end surface of the flange bearing (7).

3. The bearing hub according to claim 1, characterized in that: An anti-slip gasket (14) is provided between the end surface of the flange bearing (7) and the stop cap (12).

4. A bearing hub according to claim 1, 2 or 3, characterized in that: An oil filling hole (702) communicating with the interior of the flange bearing (7) is provided on an end surface of the flange bearing (7) close to the stop cap (12).

5. A bearing hub according to claim 4, characterized in that: The blocking cap (12) is provided with a plug (15) for sealing the refueling hole (702).

6. A bearing hub according to claim 1, 2 or 3, characterized in that: An inserting ring (703) inserted into the faceplate (5) is provided on one side of the reverse edge ring (701).

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