Hub unit assembly

Abstract

The utility model discloses a hub unit assembly which comprises a bearing body, a base and a stand column, a through groove is formed in the bearing body, the cross section of the base and the cross section of the stand column are round, and the joint of the base and the stand column is machined through the bainite technology. By means of the design of the base and the stand column, the balls can be evenly distributed on the outer side of the stand column, the balls can rotate smoothly and are not prone to abrasion, the gap between every two balls is more even, the abrasion rate of the balls in the using process is reduced, and the service life of the device is prolonged; meanwhile, grease is adopted, an extreme pressure additive and an oxidation stabilizer are added into the grease, the load capacity is enhanced, softening leakage is resisted, and the durability of the device is improved.

Description

Technical Field

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

[0002] The automobile wheel hub unit is one of the key components of a car. Its main function is to bear weight and provide precise guidance for the rotation of the wheel hub. This requires it to be able to withstand not only axial loads but also radial loads. The automobile wheel hub bearings are connected by balls to achieve a rotatable connection between the inner ring of the bearing and the outer ring of the bearing. The ball structure is precise.

[0003] The steel balls in the existing wheel hub bearings have large radian deviations, cannot rotate smoothly in an elliptical shape, and have uneven clearances with the balls, some are loose and some are tight, which can easily accelerate the wear of the balls and reduce their service life. In addition, ordinary grease is used, which has poor lubrication and is easy to evaporate, causing dry friction between the balls and the raceways, resulting in ball peeling, which in turn causes unit failure and reduces service life. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

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

[0006] A wheel hub unit assembly, comprising:

[0007] The bearing body is provided with a through groove, and comprises a base and a column. The cross sections of the base and the column are both circular, and the connection between the base and the column is processed by the Bayesian process.

[0008] As a preferred solution of the hub unit assembly described in the utility model, wherein: a mounting flange is fixedly connected to the bottom of the bearing body, a plurality of mounting holes are opened on the mounting flange, and threads are arranged in the mounting holes.

[0009] As a preferred solution of the hub unit assembly described in the utility model, the top corner of the bearing body is in an arc shape.

[0010] As a preferred solution of the wheel hub unit assembly described in the utility model, the outer side of the column is coated with grease, and extreme pressure additives and oxidation stabilizers are added to the grease.

[0011] As a preferred solution of the hub unit assembly described in the utility model, wherein: the bearing body and the mounting flange are both provided with an anti-corrosion layer, and the anti-corrosion layer is chromium.

[0012] Beneficial effects of the utility model:

[0013] The design of the base and the column in the device allows the balls to be evenly distributed on the outside of the column, so that the balls can rotate smoothly without obstruction and are not easy to wear. The gap between every two balls is more uniform, which reduces the wear rate of the balls during use and extends the service life of the device. The connection between the base and the column is processed by the Bayesian process to enhance the toughness of the connection, and it is not easy to crack during rotation to extend its service life. At the same time, grease is used, and extreme pressure additives and oxidation stabilizers are added to the grease, so that it can be used safely under harsh conditions such as -20°C to 170°C. At the same time, extreme pressure additives and oxidation stabilizers are added to enhance the load capacity and resist softening and leakage, thereby improving the durability of the device and increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0015] Figure 1 This is a schematic diagram of the overall front structure of a wheel hub unit assembly proposed by the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the front cross-sectional structure.

[0017] In the figure: 101, bearing body; 101a, base; 101b, column; 102, mounting flange; 103, mounting hole; 104, through groove; 105, annular groove; 106, ball. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0021] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0022] Reference Figure 1-2 The utility model provides a wheel hub unit assembly, comprising:

[0023] The bearing body 101 has a through groove 104 thereon. The bearing body 101 includes a base 101a and a column 101b. The base 101a and the column 101b are both circular in cross-section, so that the balls can be evenly distributed on the outside of the column 101b, so that the balls can rotate smoothly without any obstruction and are not easily worn. The connection between the base 101a and the column 101b is processed using the Bayesian process to enhance the toughness of the connection, prevent it from cracking during rotation, and extend its service life.

[0024] The bottom of the bearing body 101 is fixedly connected with a mounting flange 102 , and a plurality of mounting holes 103 are provided on the mounting flange 102 . The mounting holes 103 are provided with threads, so that the user can install the device by bolts, and the operation is simple and convenient.

[0025] Furthermore, the top corners of the bearing body 101 are in an arc shape, and the top of the bearing body 101 adopts an arc opening formed by spin forming, which meets the OE standard, has a better arc transition effect, and has stronger resistance to stress cracks.

[0026] Furthermore, the outer side of the column 101b is coated with grease, to which extreme pressure additives and oxidation stabilizers are added, so that it can be used safely under harsh conditions such as -20°C to 170°C. At the same time, extreme pressure additives and oxidation stabilizers are added to enhance the load capacity and resist softening and leakage.

[0027] Furthermore, both the bearing body 101 and the mounting flange 102 are provided with an anti-corrosion layer, which is chromium, to prevent rust and extend the service life of the device.

[0028] During use, the design of the base 101a and the column 101b allows the balls to be evenly distributed on the outside of the column 101b, so that the balls can rotate smoothly without any obstruction and are not easy to wear. The gap between every two balls is more uniform, which reduces the wear rate of the balls during use and extends the service life of the device. The connection between the base 101a and the column 101b is processed by the Bayesian process to enhance the toughness of the connection, prevent cracking during rotation, and extend its service life. At the same time, grease is used, and extreme pressure additives and oxidation stabilizers are added to the grease, so that it can be used safely under harsh conditions such as -20°C to 170°C. At the same time, extreme pressure additives and oxidation stabilizers are added to enhance the load capacity and resist softening and leakage, thereby improving the durability of the device and increasing its service life.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A wheel hub unit assembly, characterized in that: include: A bearing body (101), wherein a through groove (104) is provided on the bearing body (101), wherein the (101) comprises a base (101a) and a column (101b), wherein the base (101a) and the column (101b) are both circular in cross section, so that the balls can be evenly distributed on the outside of the column (101b), so that the balls can rotate smoothly without any sense of obstruction and are not easily worn, and the connection between the base (101a) and the column (101b) is processed by a Baesch process, so that the toughness of the connection is enhanced, the connection is not easily cracked during rotation, and the service life is extended.

2. A wheel hub unit assembly according to claim 1, characterized in that: A mounting flange (102) is fixedly connected to the bottom of the bearing body (101), a plurality of mounting holes (103) are provided on the mounting flange (102), and threads are provided in the mounting holes (103).

3. A wheel hub unit assembly according to claim 2, characterized in that: The top corners of the bearing body (101) are in an arc shape.

4. A wheel hub unit assembly according to claim 3, characterized in that: The outer side of the column (101b) is coated with grease, and the grease contains an extreme pressure additive and an oxidation stabilizer.

5. A wheel hub unit assembly according to claim 4, characterized in that: The bearing body (101) and the mounting flange (102) are both provided with an anti-corrosion layer, and the anti-corrosion layer is chromium.

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