ABS automobile hub unit with muddy water diversion trench

Abstract

The utility model relates to the technical field of automobile hub units, in particular to an ABS automobile hub unit with muddy water diversion trenches. Which comprises a central flange plate and is characterized in that a bearing inner ring associated with the central flange plate is sleeved on the outer wall of the central flange plate, a bearing outer ring sleeved with the bearing inner ring is arranged at one end of the bearing inner ring, the bearing inner ring comprises an upper inner ring and a lower inner ring, and a bearing assembly is arranged on the bearing inner ring. By arranging the upper sealing piece, the lower sealing piece and the flow guide groove, muddy water and other impurities are effectively prevented from entering the bearing, and the service life of the bearing is prolonged. Meanwhile, the magnetic ring can adsorb metal particles, so that the bearing is further protected from being polluted; the inner ring of the bearing is tightly matched with the central flange plate, so that the structural strength and stability of the whole hub unit are improved. The spline holes of the through hole structure facilitate installation of the hub unit on a vehicle. The design of the end cover and the clamp spring ensures that the hub unit cannot loosen or fall off in the installation process.

Description

Technical Field

[0001] This utility model relates to the field of automotive wheel hub unit technology, and in particular to an ABS automotive wheel hub unit with mud and water guide groove. Background Technology

[0002] With the rapid development of the automotive industry, the performance and safety requirements of vehicles are constantly increasing. Traditional wheel hub units are susceptible to intrusion of mud, water, and other impurities during use, leading to problems such as bearing damage and poor lubrication, affecting the vehicle's driving stability and safety. Furthermore, existing wheel hub units have complex structures, are inconvenient to install and maintain, and cannot meet the demands of modern automobiles for efficiency and convenience. Therefore, developing an automotive wheel hub unit with better sealing performance and ease of installation and maintenance has become an urgent problem to be solved by the industry.

[0003] Chinese patent discloses an automotive wheel hub unit (publication number: CN 201931936 U) comprising a spindle, bolts, rollers, an outer ring, a cage, an inner ring, and an inner ring clamping nut. The outer thread of the inner ring clamping nut has a keyway-shaped groove, which is interference-fitted with a wedge. However, this type of automotive wheel hub is easily invaded by mud, water, and other impurities during use, leading to problems such as bearing damage and poor lubrication, affecting the driving stability and safety of the vehicle. Therefore, there is a need for an ABS automotive wheel hub unit with mud and water drainage channels. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the susceptibility to mud, water, and other impurities during use, which can lead to bearing damage, poor lubrication, and affect the vehicle's driving stability and safety. Therefore, this invention proposes an ABS automotive wheel hub unit with mud and water drainage channels.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: An ABS automotive wheel hub unit with a mud and water guide groove, comprising a central flange, characterized in that: a bearing inner ring associated with the central flange is sleeved on the outer wall of the central flange; one end of the bearing inner ring is provided with a bearing outer ring that sleeves on the bearing inner ring; the bearing inner ring includes an upper inner ring and a lower inner ring; and a bearing assembly is provided on the bearing inner ring. By setting two bearing inner rings, dual support for the wheel can be achieved, improving the stability of vehicle driving. At the same time, the design of the bearing assembly makes the entire wheel hub unit more compact and saves space.

[0006] Preferably, the bearing assemblies are arranged in two sets, each bearing assembly including a cage with rollers mounted on it. The two sets of corresponding bearing assemblies further improve the stability and load-bearing capacity of the wheel. The rollers on the cage reduce friction, lower energy consumption, and improve driving efficiency.

[0007] Preferably, the bearing assembly has an upper seal on one side and a lower seal on the other side. The upper seal has an upper outer cover, and the lower seal has a pressure shield. The pressure shield has a dust cover, and the dust cover has a guide groove. The design of the upper and lower seals effectively prevents mud, water, and other impurities from entering the bearing, protecting it from contamination. The guide groove on the dust cover directs mud and water to the outside, preventing them from accumulating inside the hub unit.

[0008] Preferably, a magnetic ring is provided on one side of the upper sealing ring. The magnetic ring can attract metal particles, preventing them from entering the bearing, thereby reducing wear and malfunctions.

[0009] Preferably, the center flange has a splined hole at its center, the splined hole being a through-hole structure, and an end cap is provided on one side of the splined hole. Snap rings are provided between the two ends of the end cap and the center flange. The through-hole splined hole facilitates the installation of the wheel hub unit on the vehicle. The design of the end cap and snap rings ensures that the wheel hub unit will not loosen or fall off during installation.

[0010] Preferably, the upper seal, lower seal, and end cap are all made of nitrile rubber. Nitrile rubber has good wear resistance, oil resistance, and water resistance, which can effectively prevent mud, water, and other impurities from entering the bearing. At the same time, nitrile rubber also has a certain degree of elasticity, which can absorb some impact energy and improve the driving comfort of the vehicle. The advantages of this utility model are:

[0011] This application effectively prevents mud, water, and other impurities from entering the bearing by setting up upper and lower seals and guide grooves, thus extending the bearing's service life. Simultaneously, the magnetic ring can attract metal particles, further protecting the bearing from contamination. The tight fit between the bearing inner ring and the central flange improves the structural strength and stability of the entire hub unit. Two corresponding bearing assemblies further enhance the wheel's stability and load-bearing capacity; the through-hole spline structure facilitates the installation of the hub unit on the vehicle. The end cap and snap ring design ensures that the hub unit will not loosen or fall off during installation, simplifying the installation and maintenance process. The nitrile rubber upper and lower seals and end caps have good wear resistance, oil resistance, and water resistance, while also possessing a certain degree of elasticity to absorb some impact energy, improving vehicle ride comfort. The compact design makes the entire hub unit more space-saving, which is beneficial for the overall vehicle layout and weight distribution. Good sealing performance and durable material selection enable this hub unit to adapt to various harsh environmental conditions, such as rain, snow, and dusty roads. By reducing the intrusion of mud, water, and other impurities, the wear rate of the bearing is reduced, thereby reducing replacement frequency and maintenance costs. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This utility model Figure 1 A magnified view of A in the middle.

[0015] Figure 3 This is a top view of the structure of this utility model.

[0016] Figure 4 This is a table of spline parameters for this utility model.

[0017] In the diagram: 1. Bearing outer ring; 2. Upper inner ring; 3. Lower inner ring; 4. Center flange; 5. Roller; 6. Cage; 7. Back gland; 8. Lower seal; 9. Magnetic ring; 10. Upper outer cover; 11. Dust cover; 12. End cover; 13. Snap ring; 14. Upper seal; 15. Bearing inner ring; 16. Spline bore; 17. Guide groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] Example

[0020] Please see Figure 1-4As shown, an ABS automotive wheel hub unit with a mud and water guide channel includes a central flange 4. The central flange 4 is characterized by having a bearing inner ring 15 associated with it fitted onto its outer wall. One end of the bearing inner ring 15 has a bearing outer ring 1 that fits into it. The bearing inner ring 15 includes an upper inner ring 2 and a lower inner ring 3, and a bearing assembly is mounted on it. By setting two bearing inner rings 15, dual support for the wheel can be achieved, improving vehicle stability. Simultaneously, the bearing assembly design makes the entire wheel hub unit more compact and space-saving. Before assembly, 0.6-1.0g of special grease must be applied between the sealing ring and the back pressure cover 7; axial clearance: 0≤Ga≤0.02mm★; residual magnetic strength ≤0.6mT; basic rated dynamic load of the bearing: Cr=139.7KN, Cor=242.7KN; single pole error of the magnetic ring 9 ≤±3%, cumulative error ≤7%.

[0021] In this embodiment, there are two sets of bearing assemblies arranged correspondingly. Each bearing assembly includes a cage 6, and rollers 5 are mounted on the cage 6. The two sets of corresponding bearing assemblies can further improve the stability and load-bearing capacity of the wheel. The rollers 5 on the cage 6 can reduce friction, lower energy consumption, and improve driving efficiency.

[0022] In this embodiment, the bearing assembly has an upper seal 14 on one side and a lower seal 8 on the other side. The upper seal 14 has an upper outer cover 10, and the lower seal 8 has a pressure cover 7. The pressure cover 7 has a dust cover 11, and the dust cover 11 has a guide groove 17. The design of the upper and lower seals 8 effectively prevents mud, water, and other impurities from entering the bearing, protecting it from contamination. The guide groove 17 on the dust cover 11 guides mud and water to the outside, preventing them from accumulating inside the hub unit.

[0023] In this embodiment, a magnetic ring 9 is provided on one side of the upper sealing ring. The magnetic ring 9 can attract metal particles, preventing them from entering the bearing, thereby reducing wear and malfunctions.

[0024] In this embodiment, the center flange 4 has a spline hole 16 at its center. The spline hole 16 is a through hole structure, and an end cap 12 is provided on one side of the spline hole 16. Snap rings 13 are provided between the two ends of the end cap 12 and the center flange 4. The through hole structure of the spline hole 16 facilitates the installation of the wheel hub unit on the vehicle. The design of the end cap 12 and snap rings 13 ensures that the wheel hub unit will not loosen or fall off during installation.

[0025] In this embodiment, the upper seal 14, lower seal 8, and end cap 12 are all made of nitrile rubber. Nitrile rubber is a common commercial product that can be purchased directly. It possesses good wear resistance, oil resistance, and water resistance, effectively preventing mud, water, and other impurities from entering the bearing. Furthermore, nitrile rubber has a certain degree of elasticity, which can absorb some impact energy and improve vehicle ride comfort. The advantages of this invention are:

[0026] The implementation principle of this embodiment is as follows: When the vehicle is moving, the wheels drive the center flange 4 to rotate. The outer wall of the center flange 4 fits tightly with the inner ring 15 of the bearing, forming a stable rotating structure. On one side of the bearing assembly, there is an upper seal 14, and on the other side, there is a lower seal 8. The function of these two seals is to prevent mud, water, and other impurities from entering the bearing, thereby extending the service life of the bearing. The upper seal 14 is also equipped with an upper outer cover 10, and the lower seal 8 has a pressure cover 7, on which a dust cover 11 is installed. The dust cover 11 is designed with a guide groove 17, which guides mud and water to the outside, preventing mud and water from accumulating inside the hub unit. In addition, a magnetic ring 9 is provided on one side of the upper sealing ring. This magnetic ring 9 can adsorb metal particles, further protecting the bearing from contamination. The center of the center flange 4 has a through-hole spline hole 16 for mounting the hub unit on the vehicle. An end cap 12 is provided on one side of the spline hole 16. Snap rings 13 are provided between the two ends of the end cap 12 and the central flange 4 to ensure that the hub unit will not loosen or fall off during installation.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An ABS automotive wheel hub unit with a mud and water guide channel, comprising a center flange (4), characterized in that: The outer wall of the central flange (4) is fitted with a bearing inner ring (15) associated with the central flange (4). One end of the bearing inner ring (15) is provided with a bearing outer ring (1) fitted with the bearing inner ring (15). The bearing inner ring (15) includes an upper inner ring (2) and a lower inner ring (3). The bearing inner ring (15) is provided with a bearing assembly.

2. The ABS automotive wheel hub unit with mud and water guide channel according to claim 1, characterized in that: The bearing assembly consists of two sets, which are arranged accordingly. The bearing assembly includes a cage (6) and rollers (5) are provided on the cage (6).

3. The ABS automotive wheel hub unit with mud and water guide channel according to claim 1, characterized in that: The bearing assembly has an upper seal (14) on one side and a lower seal (8) on the other side. The upper seal (14) has an upper outer cover (10), the lower seal (8) has a back pressure cover (7), the back pressure cover (7) has a dust cover (11), and the dust cover (11) has a guide groove (17).

4. The ABS automotive wheel hub unit with mud and water drainage channel according to claim 3, characterized in that: A magnetic ring (9) is provided on one side of the upper sealing ring.

5. The ABS automotive wheel hub unit with mud and water drainage channel according to claim 1, characterized in that: The center flange (4) has a spline hole (16) at its center. The spline hole (16) is a through hole structure. An end cap (12) is provided on one side of the spline hole (16). Snap rings (13) are provided between the two ends of the end cap (12) and the center flange (4).

6. The ABS automotive wheel hub unit with mud and water guide channel according to claim 5, characterized in that: The upper seal (14), lower seal (8) and end cap (12) are all made of nitrile rubber.

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