Wheel assembly and vehicle

Abstract

The utility model discloses a wheel assembly and a vehicle. The wheel assembly comprises a steering knuckle and a hub bearing, wherein a mounting groove is formed in the steering knuckle; the hub bearing is arranged in the mounting groove, and a cavity is formed between the end face of the hub bearing and the side wall of the mounting groove; a drainage groove is formed in the steering knuckle, and the drainage groove extends in the height direction of the vehicle and enables the cavity to be communicated with the outside. According to the wheel assembly, the drainage groove which extends in the height direction and enables the cavity to be communicated with the outside is formed in the steering knuckle, impurities in the cavity are discharged in time under the action of gravity through the drainage groove, the wheel assembly is prevented from being corroded and damaged by the impurities, and the safety of a vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a wheel assembly and a vehicle. Background Art

[0002] There is usually a cavity between the wheel hub bearing and the steering knuckle, which is not closed. Therefore, it is necessary to design a drainage groove or drainage hole on the steering knuckle or other structures to drain the water or foreign matter in the cavity to avoid the influence of water or foreign matter on the bearing and other structures. In the related art, the drainage hole or drainage groove usually extends in the horizontal direction and opens toward the inside of the vehicle, which makes it difficult to drain water or foreign matter, and impurities in the environment can easily enter the cavity and cause damage to the vehicle. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a wheel assembly. According to the wheel assembly of the utility model, a drainage groove extending in the height direction and connecting the cavity with the outside is arranged in the steering knuckle, and impurities in the cavity are discharged in time under the action of gravity through the drainage groove, thereby avoiding corrosion damage to the wheel assembly by impurities and improving the safety of the vehicle.

[0004] The utility model also provides a vehicle comprising the wheel assembly.

[0005] According to the utility model, the wheel assembly includes a steering knuckle and a wheel hub bearing, wherein the steering knuckle is formed with a mounting groove; the wheel hub bearing is arranged in the mounting groove, and a cavity is formed between the end face of the wheel hub bearing and the side wall of the mounting groove; wherein a drainage groove is formed in the steering knuckle, and the drainage groove extends in the height direction of the vehicle and connects the cavity with the outside.

[0006] According to the utility model, a wheel assembly is provided with a steering knuckle, and a mounting groove is provided on the steering knuckle. The mounting groove can be used to assemble the wheel hub bearing. During assembly, at least part of the wheel hub bearing cooperates with the mounting groove. At this time, a cavity is formed between the end face of the wheel hub bearing and the side wall of the mounting groove. Impurities such as water or foreign matter in the environment can enter the cavity through the gap when the loading and unloading structure of the wheel assembly cooperates. Therefore, a drainage groove is provided in the steering knuckle of the wheel assembly. The drainage groove connects the cavity with the outside world to facilitate the discharge of impurities in the cavity. Different from the drainage groove in the related art, the wheel assembly constructs the drainage groove to extend in the height direction of the vehicle. When impurities enter the cavity, the impurities can be discharged in time through the drainage groove under the action of gravity, thereby avoiding the impurities from accumulating in the cavity for a long time and damaging the wheel hub bearing and other components. At the same time, the drainage groove extending in the height direction can also effectively prevent impurities in the external environment from entering the cavity through the drainage groove, thereby improving the safety of the vehicle.

[0007] According to an embodiment of the utility model, the wheel assembly further includes: a brake disc, wherein the brake disc is arranged on one side of the steering knuckle, and the outlet of the drainage groove is located on the side of the steering knuckle close to the brake disc.

[0008] According to an embodiment of the present utility model, the drainage groove extends in the height direction of the vehicle and is inclined toward one side of the brake disc.

[0009] According to one embodiment of the utility model, a supporting surface suitable for supporting the wheel hub bearing is formed in the mounting groove, and the supporting surface is constructed as an annular surface surrounding at least a portion of the wheel hub bearing; a stop surface connected to the supporting surface is formed on the steering knuckle, and the stop surface stops with the wheel hub bearing and is opposite to the brake disc; wherein the inlet of the drainage groove is arranged on the supporting surface, and the outlet of the drainage groove extends in a direction close to the bottom of the stop surface.

[0010] According to an embodiment of the present utility model, the angle between the central axis of the drainage groove and the height direction of the vehicle is α, and satisfies: "0≤α≤10°".

[0011] According to an embodiment of the present utility model, the angle between the central axis of the drainage groove and the height direction of the vehicle is α, and satisfies: "3.5°≤α≤7°".

[0012] According to an embodiment of the present utility model, the cross-sectional area of ​​the drainage groove is larger than the cross-sectional area of ​​the cavity in the plane where the support surface is located.

[0013] According to an embodiment of the present utility model, the diameter of the drainage groove is d, and satisfies: 6mm≤d≤10mm.

[0014] According to an embodiment of the present utility model, a projection of the cavity in the vehicle height direction is located within the drainage groove.

[0015] The vehicle according to the present utility model is briefly described below.

[0016] The vehicle according to the utility model includes the wheel assembly in the above-mentioned embodiment. Since the vehicle according to the utility model is provided with the wheel assembly in the above-mentioned embodiment, impurities in the cavity can be discharged through the drainage groove regardless of whether the vehicle is parked or running, thereby avoiding impurities from being retained in the cavity and corroding the vehicle structure, thereby improving the safety and service life of the vehicle.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a cross-sectional view of a wheel assembly according to an embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of a cavity and a drainage groove according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] Wheel assembly 1;

[0023] Steering knuckle 11, supporting surface 111, and stop surface 112;

[0024] Wheel hub bearing 12;

[0025] Cavity 13;

[0026] Drainage trough 14. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] There is usually a cavity between the wheel hub bearing and the steering knuckle, which is not closed. Therefore, it is necessary to design a drainage groove or drainage hole on the steering knuckle or other structures to drain the water or foreign matter in the cavity to avoid the influence of water or foreign matter on the bearing and other structures. In the related art, the drainage hole or drainage groove usually extends in the horizontal direction and opens toward the inside of the vehicle, which makes it difficult to drain water or foreign matter, and impurities in the environment can easily enter the cavity and cause damage to the vehicle.

[0029] Reference below Figure 1-Figure 2 A wheel assembly according to an embodiment of the present invention is described.

[0030] According to the utility model, the wheel assembly 1 includes a steering knuckle 11 and a wheel hub bearing 12, wherein the steering knuckle 11 is formed with a mounting groove; the wheel hub bearing 12 is arranged in the mounting groove, and a cavity 13 is formed between the end face of the wheel hub bearing 12 and the side wall of the mounting groove; wherein a drainage groove 14 is formed in the steering knuckle 11, and the drainage groove 14 extends in the height direction of the vehicle and connects the cavity 13 with the outside.

[0031] According to the utility model, a wheel assembly 1 is provided with a steering knuckle 11, and a mounting groove is provided on the steering knuckle 11. The mounting groove can be used to assemble a wheel hub bearing 12. During assembly, at least a portion of the wheel hub bearing 12 cooperates with the mounting groove. At this time, a cavity 13 is formed between the end face of the wheel hub bearing 12 and the side wall of the mounting groove. Impurities such as water or foreign matter in the environment will enter the cavity 13 through the gap when the connecting and unloading structure of the wheel assembly 1 cooperates. Therefore, the wheel assembly 1 is provided with a drainage groove 14 in the steering knuckle 11. The drainage groove 14 connects the cavity 13 with the outside to facilitate the discharge of impurities in the cavity 13. Different from the drainage groove 14 in the related art, the wheel assembly 1 constructs the drainage groove 14 to extend in the height direction of the vehicle. When impurities enter the cavity 13, the impurities can be discharged in time through the drainage groove 14 under the action of gravity, thereby preventing the impurities from accumulating in the cavity 13 for a long time and damaging the wheel hub bearing 12 and other components. At the same time, the drainage groove 14 extending in the height direction can also effectively prevent impurities in the external environment from entering the cavity 13 through the drainage groove 14, thereby improving the safety of the vehicle.

[0032] According to an embodiment of the utility model, the wheel assembly 1 further includes: a brake disc, which is arranged on one side of the steering knuckle 11, and the outlet of the drainage groove 14 is located on the side of the steering knuckle 11 close to the brake disc. Specifically, the wheel assembly 1 is further provided with a brake disc, which is located on one side of the steering knuckle 11, which can also be understood as the brake disc being located on the outside of the wheel assembly 1, and the wheel assembly 1 arranges the outlet of the water distribution groove on the side of the steering knuckle 11 close to the brake disc, so that the outlet of the drainage groove 14 can be close to the outside of the wheel assembly 1, and the brake disc and at least part of the steering knuckle 11 are distributed on both sides of the drainage groove 14, which can further reduce the impurities in the environment from entering the cavity 13 through the drainage groove 14.

[0033] It should be noted that the inner side and the outer side mentioned in the above embodiments are determined based on the entire vehicle. Taking the front wheels of the vehicle as an example, the direction in which the front wheels on both sides of the vehicle face each other is the inner side, and the direction in which the front wheels on both sides of the vehicle face away from each other is the outer side.

[0034] According to an embodiment of the utility model, the drainage groove 14 extends in the height direction of the vehicle and is inclined toward one side of the brake disc. The drainage groove 14 inclined in the height direction can effectively utilize gravity to promote the discharge of water and impurities in the cavity 13, and the impurities can flow smoothly to the outlet of the drainage groove 14, reducing the retention time of impurities in the cavity 13 and reducing the potential risk of impurities damaging the wheel hub bearing 12 or other structures. At the same time, the inclined drainage groove 14 design can reduce the accumulation of foreign matter in the drainage groove 14, help keep the drainage groove 14 unobstructed, and ensure the long-term effective drainage function of the drainage groove 14.

[0035] According to one embodiment of the utility model, a supporting surface 111 suitable for supporting the wheel hub bearing 12 is formed in the mounting groove, and the supporting surface 111 is constructed as an annular surface surrounding at least a portion of the wheel hub bearing 12; a stop surface 112 connected to the supporting surface 111 is formed on the steering knuckle 11, and the stop surface 112 stops against the wheel hub bearing 12 and is directly opposite to the brake disc; wherein, the inlet of the drainage groove 14 is arranged on the supporting surface 111, and the outlet of the drainage groove 14 extends in a direction close to the bottom of the stop surface 112.

[0036] Specifically, an annular supporting surface 111 is formed in the mounting groove. When the wheel hub bearing 12 is assembled with the steering knuckle 11, the supporting surface 111 can cooperate with at least part of the side surface of the wheel hub bearing 12 to support the wheel hub bearing 12. One end of the supporting surface 111 is connected to a stop surface 112. The stop surface 112 can stop with at least part of the wheel hub bearing 12 after the wheel hub bearing 12 is assembled into the mounting groove, thereby improving the stability of the assembly of the wheel hub bearing 12.

[0037] A cavity 13 is formed between at least part of the support surface 111, the end surface of the hub bearing 12, and the side wall of the mounting groove. The side wall of the mounting groove here can also be simply understood as the area connected to the other end of the support surface 111. The inlet of the drainage groove 14 is arranged on the support surface 111, so that the liquid and impurities in the cavity 13 can directly and efficiently enter the drainage groove 14, reducing the retention time of the liquid and impurities in the cavity 13 and improving the drainage and impurity removal efficiency. The outlet of the drainage groove 14 extends in the direction close to the bottom of the stop surface 112. Such a layout helps the liquid and impurities to be discharged more smoothly under the action of gravity. At the same time, the stop surface 112 is directly opposite to the brake disc, so that the brake disc can serve as an additional barrier to prevent external impurities from entering the cavity 13 through the drainage groove 14, further improving the protection performance of the wheel assembly 1.

[0038] According to an embodiment of the utility model, the angle between the central axis of the drainage groove 14 and the height direction of the vehicle is α, and satisfies: "0≤α≤10°". By setting the angle α between the central axis of the drainage groove 14 and the height direction of the vehicle, and limiting the range of α to between 0° and 10°, the drainage direction of the drainage groove 14 can be accurately controlled to avoid the extension direction of the drainage groove 14 tilting toward the horizontal direction to affect the discharge efficiency of impurities, which helps to ensure that liquid and impurities can be discharged smoothly along a predetermined path, reducing retention and accumulation in the cavity 13.

[0039] Among them, when α=0°, the drainage groove 14 is in a completely vertical state. The completely vertical extension of the drainage groove 14 can also be understood as a special case of the above-mentioned inclination of the drainage groove 14. At this time, the interior of the drainage groove 14 will not hinder the flow of impurities, and the impurities can be quickly discharged from the drainage groove 14 under the action of gravity.

[0040] According to an embodiment of the utility model, the angle between the central axis of the drain groove 14 and the height direction of the vehicle is α, and satisfies: "3.5°≤α≤7°". Within the range of 3.5° to 7°, the inclination angle of the drain groove 14 is further precisely adjusted to achieve the best drainage effect. The angle within this range can more effectively utilize the gravity, so that the liquid and impurities flow to the outlet of the drain groove 14 faster, reduce the retention time in the cavity 13, and further reduce the wear and corrosion of the vehicle components by the impurities.

[0041] According to one embodiment of the utility model, the cross-sectional area of ​​the drainage groove 14 is larger than the cross-sectional area of ​​the cavity 13 in the plane where the support surface 111 is located. By designing the cross-sectional area of ​​the drainage groove 14 to be larger than the cross-sectional area of ​​the cavity 13 in the plane where the support surface 111 is located, the drainage capacity of the wheel assembly 1 can be significantly improved. Specifically, the larger cross-sectional area of ​​the drainage groove 14 helps to reduce the resistance in the process of drainage and impurity removal. When liquid and impurities are discharged through the drainage groove 14, the larger cross-sectional area of ​​the drainage groove 14 can ensure that the cross-sectional area of ​​the impurities in the cavity 13 is smaller than the cross-sectional area of ​​the drainage groove 14, and the resistance of the impurities flowing in the drainage groove 14 is small, so that the drainage and impurity removal is smoother, and the possibility of impurities clogging the drainage groove 14 can be reduced, ensuring that the drainage and impurity removal process can be carried out continuously, and avoiding the long-term retention of impurities and corrosion and damage to the wheel assembly 1.

[0042] According to an embodiment of the utility model, the diameter of the drainage groove 14 is d, and satisfies: 6mm≤d≤10mm. The value of the diameter d of the drainage groove 14 will affect the discharge of impurities from the cavity 13. When the value of d is too small, impurities are likely to block the drainage groove 14, resulting in failure of the drainage and impurity removal function of the drainage groove 14; when the value of d is too large, the manufacturing cost and weight will be increased, and at the same time, the risk of impurities in the environment entering the cavity 13 through the drainage groove 14 will be increased. When d is within the range of 6mm to 10mm, the drainage efficiency of the drainage groove 14 is guaranteed, and unnecessary weight increase is avoided.

[0043] It should be noted that, for different vehicles, d can also be specifically designed according to the actual wheel conditions of the vehicle.

[0044] According to an embodiment of the utility model, the projection of the cavity 13 in the vehicle height direction is located in the drainage groove 14. The projection of the cavity 13 in the vehicle height direction completely falls in the drainage groove 14, which can ensure that any liquid or impurities in the cavity 13 can directly flow into the drainage groove 14, avoiding the accumulation of liquid and impurities at the junction between the cavity 13 and the drainage groove 14, thereby ensuring the thoroughness of drainage.

[0045] The vehicle according to the present utility model is briefly described below.

[0046] The vehicle according to the utility model includes the wheel assembly 1 in the above embodiment. Since the vehicle according to the utility model is provided with the wheel assembly 1 in the above embodiment, no matter the vehicle is parked or running, the impurities in the cavity 13 can be discharged through the drainage groove 14, thereby avoiding the impurities from being retained in the cavity 13 and corroding the vehicle structure, thereby improving the safety and service life of the vehicle.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0049] In the description of the present invention, "plurality" means two or more.

[0050] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0051] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wheel assembly, characterized in that: include: A steering knuckle, wherein a mounting groove is formed on the steering knuckle; A wheel hub bearing, wherein the wheel hub bearing is arranged in the mounting groove, and a cavity is formed between the end surface of the wheel hub bearing and the side wall of the mounting groove; wherein A drainage groove is formed in the steering knuckle, and the drainage groove extends in the height direction of the vehicle and connects the cavity with the outside.

2. The wheel assembly according to claim 1, characterized in that: Also includes: A brake disc is arranged on one side of the steering knuckle, and an outlet of the drainage groove is located on a side of the steering knuckle close to the brake disc.

3. The wheel assembly according to claim 2, characterized in that: The drainage groove extends in a height direction of the vehicle and is inclined toward one side of the brake disc.

4. The wheel assembly according to claim 3, characterized in that: A support surface suitable for supporting the wheel hub bearing is formed in the mounting groove, and the support surface is constructed as an annular surface surrounding at least a portion of the wheel hub bearing; a stop surface connected to the support surface is formed on the steering knuckle, and the stop surface stops against the wheel hub bearing and faces the brake disc; wherein The inlet of the drainage groove is arranged on the supporting surface, and the outlet of the drainage groove extends toward a direction close to the bottom of the stop surface.

5. The wheel assembly according to claim 4, characterized in that: The angle between the central axis of the drainage groove and the height direction of the vehicle is α, and satisfies: "0≤α≤10°".

6. The wheel assembly according to claim 5, characterized in that: The angle between the central axis of the drainage groove and the height direction of the vehicle is α, and satisfies: "3.5°≤α≤7°".

7. The wheel assembly according to claim 4, characterized in that: The cross-sectional area of ​​the drainage groove is larger than the cross-sectional area of ​​the cavity in the plane where the support surface is located.

8. The wheel assembly according to claim 6, characterized in that: The diameter of the drainage groove is d, and satisfies: 6mm≤d≤10mm.

9. The wheel assembly according to claim 1, characterized in that: A projection of the cavity in a vehicle height direction is located within the drainage groove.

10. A vehicle, characterized in that: A wheel assembly comprising any one of claims 1-9.

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