Hub unit with novel structure

Abstract

The utility model discloses a hub unit with a novel structure, which comprises a flange plate, an outer ring sleeved on the periphery of the flange plate and an inner ring, a raceway annular gap formed between the outer ring and the flange plate and between the outer ring and the inner ring, a retainer arranged in the raceway annular gap, a plurality of rollers arranged on the retainer, and a plurality of bearings arranged on the retainer. Compared with a traditional hub needing a check ring structure, the hub has the advantages that the outer ring, the inner ring and the flange plate are installed together through the bolt structure, the structure is simplified, meanwhile, the integrity of the hub is improved, and the hub has the advantages that the hub is simple in structure, convenient to use and high in practicability. The production difficulty is reduced by simplifying the structure, the production efficiency is improved, meanwhile, the self weight of the hub is reduced, spare parts of important parts are arranged in the hub, and the use stability is improved.

Description

Technical Field

[0001] The utility model relates to the field of wheel hubs, in particular to a wheel hub unit with a new structure. Background Art

[0002] With the rapid development of the automobile industry and the continuous improvement of people's requirements for vehicle performance, the improvement of automobile wheel hub structure is particularly important. Traditional wheel hub structure often has the following problems:

[0003] 1. Complex manufacturing process: The manufacturing process of traditional wheel hubs is cumbersome, involving multiple processing procedures and complex assembly steps, which not only increases production costs and time, but also increases the probability of errors in the production process, affecting production efficiency.

[0004] 2. Heavy weight: Wheels are usually made of metal materials, resulting in a heavy weight. Heavier wheels not only increase the total weight of the vehicle, affecting fuel economy, but also increase the burden on the suspension system, affecting the vehicle's handling and comfort.

[0005] After searching, it is found that a Chinese patent document discloses an angular contact hub unit [application number: 202322730649.6, publication number: CN220929941U]. This angular contact hub unit is characterized by comprising a mandrel, one end of the mandrel is fixedly sleeved with an inner ring, the mandrel and the outer periphery of the inner ring are sleeved with an outer ring, and a raceway annular gap is formed between the outer ring and the mandrel and the inner ring. The raceway annular gap is partially surface quenched to increase its hardness and improve its wear resistance. Although the life of the hub product is improved, the process is complicated, which greatly improves the production of finished products and reduces stability. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a hub unit with a new structure, which has the advantages of simplified structure, fewer accessories, high reliability, low production cost, etc., and solves the above technical problems.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A hub unit of a new structure includes a flange, wherein one end of the flange is fixedly sleeved with an inner ring, the flange and the outer circumference of the inner ring are sleeved with the outer ring, a raceway annular gap is formed between the outer ring, the flange and the inner ring, a retaining frame is arranged in the raceway annular gap, a plurality of rollers are mounted on the retaining frame, the raceway annular gap is sealed by a sealing assembly, a plurality of nut structures are provided on the top of the flange, and mounting bolts are provided on the outer side of the flange;

[0009] The outer ring, inner ring and flange are fixed by bolts, and after the nut structure is installed, the bolt head and the flange are in the same plane.

[0010] Preferably, the nut structure is provided with a guiding groove.

[0011] Through the above technical solution, the bolt can be installed more accurately into the nut structure, increasing the overall stability.

[0012] Preferably, the nut structures can be evenly and equidistantly distributed on the flange according to a radially symmetric arrangement or a radial arrangement.

[0013] Through the above technical solution, the distribution mode of the nut structure can be designed according to conditions such as vehicle weight and vehicle use environment, more reasonably dispersing stress.

[0014] Preferably, the nut structure is a double-nut stacked structure, and the axes of the two nuts are on the same straight line.

[0015] Through the above technical solution, the bolt can be accurately installed, avoiding situations such as bolt inclination and improper installation. At the same time, the double-nut structure can reduce the loosening of the bolt caused by vibration.

[0016] Preferably, the cage includes two rings of frameworks.

[0017] Through the above technical solution, the two rings of frameworks are symmetrically distributed, which can increase the stability of the wheel hub during operation.

[0018] Preferably, an "O"-ring is provided on the top of the outer ring.

[0019] Through the above technical solution, it can prevent external mud and water from entering the interior.

[0020] Preferably, spare bolts are provided on the outer side of the outer ring.

[0021] Through the above technical solution, when there is a problem with the installed bolt, the spare bolt can be used for quick replacement.

[0022] Compared with the prior art, the present utility model has the following advantages:

[0023] 1. Compared with traditional wheel hubs that require a snap ring structure, this wheel hub uses a bolt structure to install the outer ring, inner ring, and flange together, not only streamlining the structure but also improving the integrity of the wheel hub.

[0024] 2. The simplification of the structure reduces the production difficulty, improves production efficiency, and at the same time reduces the self-weight of the wheel hub. Spare parts of important components are provided inside the wheel hub, improving the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a sectional structure diagram of the present utility model.

[0026] Figure 2It is an enlarged schematic view of part A of the present utility model.

[0027] In the figure: 1. Outer ring; 2. Inner ring; 3. Flange; 4. Cage; 5. Roller; 6. Sealing assembly; 7. O-ring; 8. Mounting bolt; 9. Spare bolt. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1 to 2 , the present utility model provides a technical solution: a hub with a new structure;

[0030] Specifically:

[0031] A hub unit with a new structure includes a flange 3. It is characterized in that an inner ring 2 is fixedly sleeved at one end of the flange 3, an outer ring 1 is sleeved on the outer periphery of the flange 3 and the inner ring 2, a raceway gap is formed between the outer ring 1, the flange 3 and the inner ring 2, a cage 4 is arranged in the raceway gap, a plurality of rollers 5 are installed on the cage 4, the raceway gap is closed by a sealing assembly 6, a plurality of nut structures are provided at the top of the flange 3, and mounting bolts 8 are arranged on the outside of the flange 3;

[0032] The outer ring 1, the inner ring 2 and the flange 3 are fixed by bolts. After installing the nut structure, the bolt heads are in the same plane as the flange 3. Compared with the traditional hub structure that requires a baffle, it has the disadvantage of being prone to failure due to the inability to lock the inner ring. This new structure of the hub unit eliminates the baffle, and at the same time fixes the outer ring 1, the inner ring 2 and the flange 3 together to form an integral body, which can greatly improve the service life of the product.

[0033] Furthermore, the nut structure is provided with a guiding groove, which can install the bolts more accurately into the nut structure, increasing the overall stability. The existence of the guiding groove makes the installation process smoother, reduces the possibility of operation errors, and improves the assembly efficiency.

[0034] Furthermore, the nut structures can be arranged radially and evenly distributed on the flange 3 at equal intervals. The radial arrangement can ensure that when an external force acts on the flange 3, each bolt and nut will evenly share the stress, reducing local stress concentration. This distribution method is suitable for usage environments with low load requirements. There is also a radially symmetric arrangement, evenly distributed on the flange 3 at equal intervals. In this radially symmetric arrangement, the forces borne by each bolt and nut are relatively uniform, making it suitable for usage environments with high load requirements.

[0035] Furthermore, the nut structure is a double-nut stacked structure. The axes of the two nuts are on the same straight line, enabling precise installation of the bolts and avoiding situations such as bolt inclination and improper installation. At the same time, the double-nut structure can reduce the loosening of bolts caused by vibration. The two nuts cooperate with each other to effectively lock the bolts, while absorbing and dispersing vibration energy, reducing the possibility of bolt loosening.

[0036] Furthermore, the cage 4 includes two rings of frameworks, which are symmetrically distributed, increasing the stability of the hub during operation. The symmetric cage structure enhances the dynamic balance of the hub. During high-speed operation, the cage can effectively suppress vibration and sway, ensuring the smooth operation of the hub. During high-speed operation, the cage can effectively suppress vibration and sway, ensuring the smooth operation of the hub.

[0037] Furthermore, an "O" - ring 7 is provided on the top of the outer ring 1, which can prevent external muddy water from entering the interior. The "O" - ring can be made of nitrile material, and the oil resistance and wear resistance of this material are very suitable for the working environment of the hub.

[0038] Furthermore, a spare bolt 9 is provided on the outer side of the outer ring 1. When the installation bolt 8 has problems, this spare bolt 9 can be used for quick replacement. The installation bolts used for the hub are of a special model, and it is not easy to find a suitable replacement bolt when a fault occurs. Installing the spare bolt in the spare space not only improves the convenience of maintenance but also ensures the sustainable operation of the equipment, making the most of the internal space of the hub.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0040] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0041] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A hub unit with a new structure, including a flange (3), characterized in that, One end of the described flange (3) is fixedly sleeved with the inner ring (2). The flange (3) is sleeved with the outer ring (1) on the outer periphery of the inner ring (2). A raceway annulus is formed between the outer ring (1), the flange (3), and the inner ring (2). A cage (4) is arranged in the raceway annulus. A number of rollers (5) are installed on the cage (4). The raceway annulus is closed by a sealing assembly (6). A number of nut structures are provided at the top of the flange (3), and mounting bolts (8) are provided on the outside of the flange (3). The outer ring (1), the inner ring (2), and the flange (3) are fixed by bolts. After installing the nut structure, the bolt heads are in the same plane as the flange (3).

2. The hub unit with a new structure according to claim 1, characterized in that, The plane formed by the nut structures provided on the flange (3) is slightly lower than the plane of the flange (3).

3. A hub unit with a new structure according to claim 1, characterized in that, The nut structures are provided with guide grooves.

4. A hub unit with a new structure according to claim 1, characterized in that, The nut structures can be evenly and equidistantly distributed on the flange (3) in a radially symmetric arrangement or in a radial arrangement.

5. A hub unit with a new structure according to claim 1, characterized in that, The nut structure is a double-nut stacked structure, and the axes of the two nuts are on the same straight line.

6. A hub unit with a new structure according to claim 1, characterized in that, The cage (4) includes two rings of frameworks.

7. A hub unit with a new structure according to claim 1, characterized in that, An "O"-ring (7) is provided on the top of the outer ring (1).

8. A hub unit with a new structure according to claim 1, characterized in that, Spare bolts (9) are provided on the outside of the outer ring (1).

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