Hub assembly, wheel assembly and vehicle

Abstract

The utility model discloses a wheel hub assembly, a wheel assembly and a vehicle. The wheel hub assembly comprises a wheel hub, the brake disc body is arranged on the hub, and an extending part located on the periphery of the hub is formed on the brake disc body; and the speed sensing part is arranged on the extension part and is arranged on the periphery of the hub in a surrounding manner. According to the hub assembly designed by the utility model, the extension part of the brake disc body is arranged on the periphery of the hub in a surrounding manner and is provided with the speed sensing part which extends in the circumferential direction, so that the diameter of the speed sensing part can be designed to be larger, and the resolution ratio of a wheel speed sensor for monitoring the rotating speed of the speed sensing part is higher; therefore, the resolution ratio of the wheel speed sensor for monitoring the rotating speed of the hub is higher, and the response of systems such as an ABS is more accurate.

Description

Technical Field

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

[0002] In the related technology, the wheel speed signal is an important parameter that is common and must be monitored by systems such as the ABS of motor vehicles. The wheel speed signal is collected through a combination of a wheel speed sensor and a magnetic encoder or a gear ring. In the prior art, the wheel speed sensor is fixed to the steering knuckle of the vehicle, and the magnetic encoder or the gear ring is fixed to the wheel hub bearing and rotates with the wheel hub. The diameter of the magnetic encoder or the gear ring is small, resulting in a small number of magnetic poles of the encoder or a small number of teeth on the gear ring, which leads to a low resolution of the wheel speed sensor in monitoring the wheel speed. 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 propose a wheel hub assembly. According to the wheel hub assembly designed by the utility model, the extension of the brake disc body is arranged around the outer circumference of the wheel hub and is provided with a speed sensing component extending in the circumferential direction, so that the diameter of the speed sensing component can be designed to be larger, so that the wheel speed sensor has a higher resolution for monitoring the rotation speed of the speed sensing component, and further the wheel speed sensor has a higher resolution for monitoring the rotation speed of the wheel hub, so that the response of systems such as ABS is more accurate.

[0004] The utility model also provides a wheel assembly having the wheel hub assembly.

[0005] The utility model also provides a vehicle with the wheel assembly.

[0006] The wheel hub assembly according to the utility model comprises: a wheel hub; a brake disc body, which is arranged on the wheel hub and has an extension portion located at the periphery of the wheel hub; and a speed sensing component, which is arranged on the extension portion and surrounds the periphery of the wheel hub.

[0007] According to the wheel hub assembly of the present invention, the brake disc body is connected to the wheel hub and is formed with an extension portion located at the outer periphery of the wheel hub. The speed sensing component is arranged on the extension portion. Compared with the solution in which the speed sensing component is arranged on the wheel hub or the wheel hub bearing, the speed sensing component of the present application has a larger diameter. Therefore, when the speed sensing component of the present application is cooperated with the wheel speed sensor, the wheel speed sensor has a higher resolution in monitoring the rotation speed of the speed sensing component, which makes the wheel speed sensor have a higher resolution in monitoring the rotation speed of the wheel hub, thereby making the response of systems such as ABS more accurate.

[0008] According to some embodiments of the present invention, the maximum diameter of the speed sensing component is d, which satisfies: 170 mm ≤ d ≤ 190 mm.

[0009] According to some embodiments of the present invention, the brake disc body includes: a disc body, which is suitable for being fixed to the wheel hub; a peripheral portion, which is arranged at the outer peripheral edge of the disc body and extends in the axial direction, and the extension portion is arranged at the free end of the peripheral portion and radially away from the disc body.

[0010] According to some embodiments of the utility model, a first mounting portion is provided at one end of the extension portion axially away from the disk body, and a second mounting portion is provided on the speed sensing component, and the first mounting portion cooperates with the second mounting portion to fix the speed sensing component to the extension portion.

[0011] According to some embodiments of the utility model, one of the first mounting portion and the second mounting portion is configured as a snap ring, and the other of the first mounting portion and the second mounting portion is configured as a snap protrusion, the snap protrusion and the snap ring extend in the circumferential direction respectively, and the snap protrusion is accommodated in the snap ring to fix the speed sensing component to the extension portion.

[0012] According to some embodiments of the utility model, the speed sensing component includes: a sensing part, which is configured as a circular ring structure; a connecting part, which is arranged on the outer peripheral edge of the sensing part and extends axially toward the extending part, and the connecting part is configured as the second mounting part and is sleeved on the radially outer side of the first mounting part.

[0013] According to some embodiments of the utility model, the sensing portion is constructed as a metal piece, and a tooth portion is provided on the outer periphery of the sensing portion; or a tooth portion is provided on one end of the sensing portion axially away from the extending portion.

[0014] According to some embodiments of the present invention, the sensing portion is configured as a magnetic rubber piece.

[0015] A wheel assembly according to another embodiment of the present invention is briefly described below.

[0016] The wheel assembly according to the utility model includes the hub assembly described in any one of the above embodiments. Since the wheel assembly according to the utility model is provided with the hub assembly of the above embodiments, the resolution of the rotation speed monitoring of the wheel assembly is higher, so that the rotation speed monitoring of the wheel assembly is more accurate.

[0017] A vehicle according to another embodiment of the present invention will be briefly described below.

[0018] The vehicle according to the utility model includes the wheel assembly described in any one of the above embodiments. Since the vehicle according to the utility model is provided with the wheel assembly of the above embodiments, the wheel speed monitoring of the vehicle is more accurate, so that the response of the vehicle's ABS and other systems is more accurate.

[0019] 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

[0020] 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:

[0021] Figure 1 is a cross-sectional view of a wheel hub assembly according to an embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the coordination between the speed sensing component and the ventilated brake disc according to an embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of the cooperation between the speed sensing component and the solid brake disc according to an embodiment of the utility model.

[0024] Reference numerals: 1, wheel hub assembly; 2, steering knuckle; 3, wheel speed sensor;

[0025] 10. Wheel hub;

[0026] 20. brake disc body; 21. disc body; 22. outer peripheral portion; 23. extension portion; 231. snap-fitting protrusion;

[0027] 30. Speed ​​sensing component; 31. Sensing part; 32. Connecting part. DETAILED DESCRIPTION

[0028] 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.

[0029] In the related technology, the wheel speed signal is an important parameter that is common and must be monitored by systems such as the ABS of motor vehicles. The wheel speed signal is collected through a combination of a wheel speed sensor and a magnetic encoder or a gear ring. In the prior art, the wheel speed sensor is fixed to the steering knuckle of the vehicle, and the magnetic encoder or the gear ring is fixed to the wheel hub bearing and rotates with the wheel hub. The diameter of the magnetic encoder or the gear ring is small, resulting in a small number of magnetic poles of the encoder or a small number of teeth on the gear ring, which leads to a low resolution of the wheel speed sensor in monitoring the wheel speed.

[0030] Reference below Figure 1-Figure 3 A wheel hub assembly 1 according to an embodiment of the present invention is described.

[0031] like Figure 1-Figure 3 As shown, the wheel hub assembly 1 according to the utility model includes: a wheel hub 10, a brake disc body 20 and a speed sensing component 30, the brake disc body 20 is arranged on the wheel hub 10 and the brake disc body 20 is formed with an extension portion 23 located at the periphery of the wheel hub 10, and the speed sensing component 30 is arranged on the extension portion 23 and is arranged around the periphery of the wheel hub 10.

[0032] In some embodiments, the brake disc body 20 can be configured as a ventilated brake disc or a solid brake disc, etc., which is not limited here. The brake disc body 20 is fixedly arranged on the wheel hub 10, and the brake disc body 20 is formed with an extension portion 23 located at the outer periphery of the wheel hub 10, and the speed sensing component 30 is arranged on the extension portion 23. Since the diameter of the extension portion 23 is larger than the diameter of the wheel hub 10 and the bearing of the wheel hub 10, the speed sensing component 30 of the present application has a larger diameter than the solution in which the speed sensing component 30 is arranged on the wheel hub 10 or the bearing of the wheel hub 10.

[0033] In some embodiments, the wheel speed sensor 3 is provided with a magnetic induction component, the speed sensing component 30 is constructed as a metal component, and the outer periphery of the speed sensing component 30 is provided with a tooth portion, and the wheel speed sensor 3 cooperates with the tooth portion through the magnetic induction component to monitor the number of rotations of the speed sensing component 30 (the speed sensing component 30 rotates one circle following the wheel hub 10, and the wheel speed sensor 3 can monitor the magnetic field change of the speed sensing component 30 once). Since the diameter of the speed sensing component 30 of the present application is larger, the circumference of the speed sensing component 30 of the present application is longer, and the speed sensing component 30 can be provided with more teeth, so that when the speed sensing component 30 cooperates with the wheel speed sensor 3, the wheel speed sensor 3 has a higher resolution for monitoring the rotation speed of the speed sensing component 30, thereby making the wheel speed sensor 3 have a higher resolution for monitoring the rotation speed of the wheel hub 10.

[0034] In other embodiments, a tooth portion is provided at one end of the speed sensing component 30 which is away from the extension portion 23. Since the diameter of the speed sensing component 30 of the present application is larger, and thus the circumference of the speed sensing component 30 of the present application is longer, the speed sensing component 30 can be provided with more teeth, so that the wheel speed sensor 3 has a higher resolution in monitoring the rotation speed of the speed sensing component 30, thereby having a higher resolution in monitoring the rotation speed of the wheel hub 10.

[0035] In some other embodiments, the speed sensing component 30 is constructed as a magnetic rubber part. The speed sensing component 30 rotates one circle with the wheel hub 10, and the magnetic field of the speed sensing component 30 changes once. The wheel speed sensor 3 calculates the rotation speed of the speed sensing component 30 through the number of magnetic field cycles and time of the speed sensing component 30, thereby monitoring the rotation speed of the wheel hub 10. Since the speed sensing component 30 of the present application has a larger diameter, the speed sensing component 30 of the present application can have more magnetic poles, so that the wheel speed sensor 3 has a higher resolution in monitoring the rotation speed of the speed sensing component 30, and further, the wheel speed sensor 3 has a higher resolution in monitoring the rotation speed of the wheel hub 10.

[0036] According to the wheel hub assembly 1 involved in the present invention, its brake disc body 20 is connected to the wheel hub 10 and is formed with an extension portion 23 located on the outer periphery of the wheel hub 10. The speed sensing component 30 is arranged on the extension portion 23. Compared with the solution in which the speed sensing component 31 is arranged on the wheel hub 10 or the bearing of the wheel hub 10, the speed sensing component 30 of the present application has a larger diameter. Therefore, when the speed sensing component 30 of the present application is matched with the wheel speed sensor 3, the wheel speed sensor 3 has a higher resolution in monitoring the rotation speed of the speed sensing component 30, so that the wheel speed sensor 3 has a higher resolution in monitoring the rotation speed of the wheel hub 10, thereby making the response of systems such as ABS more accurate.

[0037] According to some embodiments of the present invention, Figure 1-Figure 3 As shown, the maximum diameter of the speed sensing component 30 is d, which satisfies: 170mm≤d≤190mm. It can be understood that the speed sensing component 30 has a maximum diameter d, and the speed sensing component 30 is provided with a tooth portion at its maximum diameter, or the magnetic pole of the speed sensing component 30 is provided at its maximum diameter, so that the number of teeth of the speed sensing component 30 is greater or the number of magnetic poles of the speed sensing component 30 is greater, so that the wheel speed sensor 3 has a higher resolution in monitoring the rotation speed of the speed sensing component 30. The maximum diameter d of the speed sensing component 30 satisfies: 170mm≤d≤190mm. 170mm≤d, so that the speed sensing component 30 can have a larger number of teeth or magnetic poles, so that the wheel speed sensor 3 has a higher resolution in monitoring the rotation speed of the speed sensing component 30; d≤190mm, it can prevent the diameter of the speed sensing component 30 from exceeding the maximum diameter of the extension 23, thereby preventing the speed sensing component 30 from interfering with other components of the vehicle.

[0038] According to some embodiments of the present invention, Figure 1-Figure 3 As shown, the brake disc body 20 includes: a disc body 21 and an outer peripheral portion 22. The disc body 21 is suitable for being fixed to the wheel hub 10. The outer peripheral portion 22 is arranged at the outer peripheral edge of the disc body 21 and extends in the axial direction. The extension portion 23 is arranged at the free end of the outer peripheral portion 22 and is radially away from the disc body 21. It can be understood that the disc body 21 is directly opposite to the wheel hub 10, and the maximum diameter of the disc body 21 is greater than the maximum diameter of the wheel hub 10. The outer peripheral portion 22 forms the outer peripheral edge of the disc body 21 and extends in the axial direction. The free end of the outer peripheral portion 22 is provided with the extension portion 23, and the extension portion 23 extends radially away from the disc body 21. Therefore, the diameter of the outer peripheral portion 22 is greater than the maximum diameter of the wheel hub 10, so as to avoid the interference between the outer peripheral portion 22 and the wheel hub 10. At the same time, the diameter of the extension portion 23 can be made larger, thereby making the diameter of the speed sensing component 30 larger, and the wheel speed sensor 3 has a higher resolution for monitoring the rotation speed of the speed sensing component 30.

[0039] According to some embodiments of the present invention, Figure 1-Figure 3 As shown, the extension portion 23 is provided with a first mounting portion at one end thereof which is axially away from the disc body 21, and the speed sensing component 30 is provided with a second mounting portion, and the first mounting portion and the second mounting portion cooperate to fix the speed sensing component 30 to the extension portion 23. One of the first mounting portion and the second mounting portion is configured as a snap ring, and the other of the first mounting portion and the second mounting portion is configured as a snap projection 231, and the snap projection 231 and the snap ring extend in the circumferential direction respectively, and the snap projection 231 is received in the snap ring to fix the speed sensing component 30 to the extension portion 23.

[0040] In some embodiments, the first mounting portion is configured as a snap-fit ​​protrusion 231, and the second mounting portion is configured as a snap-fit ​​ring. At this time, a snap-fit ​​protrusion 231 is provided at one end of the extension portion 23 facing away from the disk body 21, and the snap-fit ​​protrusion 231 extends axially toward the speed sensing component 30. A snap-fit ​​ring is provided at one end of the speed sensing component 30 facing the extension portion 23, and the snap-fit ​​ring extends axially toward the extension portion 23. The snap-fit ​​protrusion 231 is accommodated in the snap-fit ​​ring to fix the speed sensing component 30 to the extension portion 23.

[0041] In other embodiments, the first mounting portion is configured as a snap ring, and the second mounting portion is configured as a snap protrusion 231. In this case, a snap ring is provided at one end of the extension portion 23 which faces away from the disk body 21, and the snap ring extends axially toward the speed sensing component 30. An end of the speed sensing component 30 which faces the extension portion 23 is provided with a snap protrusion 231, and the snap protrusion 231 extends axially toward the extension portion 23. The snap protrusion 231 is accommodated in the snap ring to fix the speed sensing component 30 to the extension portion 23.

[0042] It is understandable that when the snap-fitting protrusion 231 is received in the snap-fitting ring, the snap-fitting protrusion 231 and the snap-fitting ring are matched in an interference fit manner, so that the snap-fitting protrusion 231 can be stably received in the snap-fitting ring, thereby allowing the speed sensing component 30 to be stably connected to the extension portion 23.

[0043] In some embodiments, a snap ring is formed on the speed sensing component 30, and an adhesive layer is provided on the end face and the outer peripheral surface of the snap protrusion 231. The surface of the speed sensing component 30 facing the snap protrusion 231 and the inner peripheral surface of the snap ring are fixed to the snap protrusion 231 through the adhesive layer, thereby improving the connection stability between the extension part 23 and the speed sensing component 30.

[0044] In other embodiments, a clamping ring is formed on the speed sensing component 30, and a clamping protrusion 231 is formed on the extension portion 23. The outer peripheral wall of the clamping protrusion 231 is provided with a plurality of threaded holes extending in the radial direction. The plurality of threaded holes are spaced apart in the circumferential direction. A plurality of through holes are formed on the clamping ring. The plurality of through holes correspond one to one to the plurality of threaded holes. Bolts pass through the through holes and are threadedly connected with the corresponding threaded holes to fix the clamping ring to the clamping protrusion 231. The fixing effect of the extension portion 23 and the speed sensing component 30 is better.

[0045] According to some embodiments of the present invention, Figure 1-Figure 3 As shown, the speed sensing component 30 includes: a sensing portion 31 and a connecting portion 32. The sensing portion 31 is constructed as a circular ring structure to facilitate the assembly of other vehicle components (for example, the steering knuckle 2 passes through the sensing portion 31 and is connected to the wheel hub 10). The connecting portion 32 is arranged on the outer periphery of the sensing portion 31 and extends axially toward the extension portion 23. The connecting portion 32 is constructed as a second mounting portion and is sleeved on the radial outer side of the first mounting portion to fix the sensing portion 31 to the extension portion 23, so that the sensing portion 31 can rotate with the extension portion 23.

[0046] In some embodiments, the sensing portion 31 is constructed as a metal part, and a tooth portion is provided on the outer periphery of the sensing portion 31; in other embodiments, the sensing portion 31 is constructed as a metal part, and a tooth portion is provided on one end of the sensing portion 31 axially away from the extension portion 23; in other embodiments, the sensing portion 31 is constructed as a magnetic rubber part, which is not limited here.

[0047] The wheel assembly according to the present utility model is briefly described below.

[0048] The wheel assembly according to the utility model is provided with the hub assembly 1 of the above-mentioned embodiment. Since the wheel assembly according to the utility model is provided with the hub assembly 1 described in any one of the above-mentioned embodiments, the speed monitoring resolution of the wheel assembly is higher, so that the speed monitoring of the wheel assembly is more accurate.

[0049] The vehicle according to the present utility model is briefly described below.

[0050] The vehicle according to the utility model is provided with the wheel assembly of the above-mentioned embodiment. Since the vehicle according to the utility model is provided with the wheel assembly described in any one of the above-mentioned embodiments, the wheel speed monitoring of the vehicle is more accurate, so that the response of the vehicle's ABS and other systems is more accurate.

[0051] 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.

[0052] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0053] In the description of the present invention, "plurality" means two or more.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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 hub assembly, characterized in that: include: Wheel hub (10); A brake disc body (20), the brake disc body (20) being arranged on the wheel hub (10) and the brake disc body (20) being formed with an extension portion (23) located at the outer periphery of the wheel hub (10); A speed sensing component (30) is arranged on the extension portion (23) and surrounds the outer periphery of the wheel hub (10).

2. The wheel hub assembly according to claim 1, characterized in that: The maximum diameter of the speed sensing component (30) is d, which satisfies: 170 mm ≤ d ≤ 190 mm.

3. The wheel hub assembly according to claim 1, characterized in that: The brake disc body (20) comprises: a disc body (21), wherein the disc body (21) is suitable for being fixed to the wheel hub (10); The outer peripheral portion (22) is arranged on the outer peripheral edge of the disk body (21) and extends in the axial direction, and the extension portion (23) is arranged at the free end of the outer peripheral portion (22) and is radially away from the disk body (21).

4. The wheel hub assembly according to claim 3, characterized in that: A first mounting portion is provided at one end of the extension portion (23) which is axially away from the disc body (21), and a second mounting portion is provided on the speed sensing component (30), wherein the first mounting portion cooperates with the second mounting portion to fix the speed sensing component (30) to the extension portion (23).

5. The wheel hub assembly according to claim 4, characterized in that: One of the first mounting portion and the second mounting portion is configured as a snap ring, and the other of the first mounting portion and the second mounting portion is configured as a snap protrusion (231). The snap protrusion (231) and the snap ring extend in a circumferential direction respectively, and the snap protrusion (231) is received in the snap ring to fix the speed sensing component (30) and the extension portion (23).

6. The wheel hub assembly according to claim 5, characterized in that: The speed sensing component (30) comprises: A sensing portion (31), wherein the sensing portion (31) is configured as a circular ring structure; A connecting portion (32), wherein the connecting portion (32) is arranged on the outer peripheral edge of the sensing portion (31) and extends axially toward the extending portion (23), and the connecting portion (32) is configured as the second mounting portion and is sleeved on the radially outer side of the first mounting portion.

7. The wheel hub assembly according to claim 6, characterized in that: The sensing portion (31) is constructed as a metal part, and a tooth portion is provided on the outer circumference of the sensing portion (31); or a tooth portion is provided on one end of the sensing portion (31) that is axially away from the extending portion (23).

8. The wheel hub assembly according to claim 6, characterized in that: The induction part (31) is constructed as a magnetic rubber piece.

9. A wheel assembly, characterized in that: The wheel hub assembly (1) comprises any one of claims 1-8.

10. A vehicle, characterized in that: The invention comprises the wheel assembly as claimed in claim 9.

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