Spoke and wheel having the same

Abstract

The present invention provides a spoke and a wheel having the same. The spoke includes a spoke body and a plurality of bosses. An axle hole and a plurality of bolt holes are formed in the spoke body. The plurality of bolt holes are arranged at intervals in the circumferential direction around the axle hole. The plurality of bosses are arranged on the spoke body and are respectively arranged on the outer circumferential sides of the plurality of bolt holes. The present invention solves the problems in the prior art that the structure of the commercial vehicle wheel is single, the weight is heavy and the load-bearing capacity is poor, resulting in poor practicability of the wheel.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular, to a spoke and a wheel having the same. Background Art

[0002] Commercial vehicle steel wheels generally include spokes and rims. Multiple bolt holes and shaft holes for connecting with the hub are provided on the spokes. During the driving of the vehicle, the spokes are stressed and cracks are likely to occur at the spoke mounting surface and the bolt holes, resulting in damage to the wheel and affecting the use safety of the vehicle.

[0003] The spoke materials of commercial vehicle steel wheels in the prior art have low strength, single structure and poor load-bearing capacity. To ensure their load-bearing capacity, the thickness of the spokes is usually relatively thick, which will lead to a heavier wheel weight, increase the fuel consumption of the vehicle, and thus result in poor practicability of the wheel. Therefore, a wheel with high strength and light weight is needed. Summary of the Invention

[0004] The main object of the present invention is to provide a spoke and a wheel having the same, so as to solve the problems of single structure, heavy weight and poor load-bearing capacity of the wheels in the prior art, which result in poor practicability of the wheels.

[0005] To achieve the above object, according to one aspect of the present invention, a spoke is provided, including: a spoke body, on which a shaft hole and a plurality of bolt holes are provided, wherein the plurality of bolt holes are circumferentially spaced apart around the shaft hole; a plurality of bosses, which are provided on the spoke body and are respectively provided on the outer circumferential sides of the plurality of bolt holes.

[0006] Further, the spoke further includes: at least one reinforcing rib structure, which is provided on the spoke body and is spaced apart from the bolt holes.

[0007] Further, the bosses and the reinforcing rib structure are an integral structure with the spoke body and are formed by a hot stamping process.

[0008] Further, the spoke body includes: a support ring plate; an end plate, which is connected to the support ring plate and is located on the inner circumferential side of the support ring plate, and the shaft hole and each bolt hole are provided on the end plate.

[0009] Further, the support ring plate encloses a conical cylinder structure, the inner diameter of the conical cylinder structure gradually increases in the direction away from the end plate, and a plurality of heat dissipation holes are provided on the conical cylinder structure and are circumferentially spaced apart around the support ring plate.

[0010] Further, the bosses protrude from the axial outer surface of the end plate, and a reinforcing rib structure is connected between two adjacent bosses.

[0011] Further, the spoke body further includes a rib structure, which is arranged at the connection between the support ring plate and the end plate and protrudes toward the side of the boss, and the end plate is connected to the support ring plate through the rib structure.

[0012] Further, the protruding heights of the boss and the reinforcing rib structure are the same, and the protruding height of the rib structure is less than or equal to the protruding heights of the boss and the reinforcing rib structure.

[0013] Further, the boss is annular, the inner hole of the annular boss forms a bolt hole, the upper surface of the boss is a plane, and the outer diameter of the boss gradually increases in the direction away from the upper surface.

[0014] According to another aspect of the present invention, there is provided a wheel, including: a rim; a spoke, which is connected to the rim and is located at one end of the axial direction of the rim, and the spoke is the above-mentioned spoke.

[0015] Applying the technical solution of the present invention, by optimizing the structure of the spoke, a boss is provided on the outer peripheral side of the bolt hole, thereby strengthening the strength of the spoke body at the bolt hole and avoiding cracks in the spoke due to stress concentration at the bolt hole during the driving of the vehicle. Therefore, while ensuring that the thickness of the spoke is relatively thin and beneficial to reducing the weight of the wheel, the spoke can also have very excellent strength characteristics, thereby improving the practicability and service life of the spoke. Specifically, only providing a boss on the outer peripheral side of the bolt hole can improve the structural strength of the spoke at the bolt hole, will not significantly increase the weight of the spoke, and can also greatly reduce the overall thickness of the spoke and reduce the overall weight of the wheel, which is beneficial to reducing the energy consumption of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The schematic diagrams in the specification forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 shows a schematic structural diagram of a wheel from an angle according to an optional embodiment of the present invention;

[0018] Figure 2 shows Figure 1 the schematic structural diagram of the wheel in

[0019] Figure 3 shows Figure 1 a schematic structural diagram of a spoke of the wheel in

[0020] Figure 4 shows Figure 3 the schematic structural diagram of the spoke in

[0021] Among them, the above-mentioned drawings include the following reference numerals:

[0022] 1. Rim; 2. Spoke; 10. Spoke body; 11. Support ring plate; 111. Heat dissipation holes; 12. End plate; 13. Encircling rib structure; 121. Axle hole; 122. Bolt hole; 20. Boss; 21. Upper surface; 30. Reinforcing rib structure. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation to the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] To solve the problems in the prior art that the structure of the wheel is single, the weight is heavy, and the load-bearing capacity is poor, resulting in poor practicability of the wheel, the present invention provides a spoke and a wheel having the same. Among them, as Figure 1 and Figure 2 shown, the wheel includes a rim 1 and a spoke 2. The spoke 2 is connected to the rim 1 and is located at one end of the axial direction of the rim 1. The spoke 2 is the spoke described above and below. The spoke 2 provided in this application has a reasonable structure, high strength and light weight, so that the spoke 2 provided in this application has good practicability and a long service life. Correspondingly, since the wheel provided in this application includes the spoke 2 provided in this application, the wheel provided in this application also has good practicability and a long service life.

[0025] It should be noted that the wheel provided in this application is mainly applied to commercial vehicles. Of course, the wheel provided in this application can also be applied to passenger vehicles. Among them, a passenger vehicle refers to a vehicle that is mainly used for carrying passengers and their carry-on luggage and / or temporary items in its design and technical characteristics, including no more than 9 seats including the driver's seat, and it can tow a trailer. A commercial vehicle refers to a vehicle that is mainly used for transporting people and goods in its design and technical characteristics and can be used for towing vehicles. Among them, the number of people carried by a commercial vehicle when transporting people is greater than 9.

[0026] As Figure 3 and Figure 4As shown in the figure, the spoke 2 includes a spoke body 10 and a plurality of bosses 20. An axle hole 121 and a plurality of bolt holes 122 are formed in the spoke body 10. Among them, the plurality of bolt holes 122 are arranged at intervals along the circumferential direction of the axle hole 121, and the plurality of bosses 20 are arranged on the spoke body 10 and are respectively arranged on the outer peripheral sides of the plurality of bolt holes 122.

[0027] In this application, by optimizing the structure of the spoke 2 and arranging the bosses 20 on the outer peripheral sides of the bolt holes 122, the strength of the spoke body 10 at the bolt holes 122 is enhanced, and cracks caused by stress concentration at the bolt holes 122 during the driving of the vehicle are avoided. Therefore, while ensuring that the thickness of the spoke 2 is relatively thin and beneficial to reducing the weight of the wheel, the spoke 2 can also have excellent strength characteristics, thereby improving the practicality and service life of the spoke 2. Specifically, only arranging the bosses 20 on the outer peripheral sides of the bolt holes 122 can improve the structural strength of the spoke 2 at the bolt holes 122, will not significantly increase the weight of the spoke 2, and can also greatly reduce the overall thickness of the spoke 2, reduce the overall weight of the wheel, and is beneficial to reducing the energy consumption of the vehicle.

[0028] Optionally, the axle hole 121 is located at the center of the spoke body 10, and the plurality of bolt holes 122 are evenly distributed along the circumferential direction of the axle hole 121. Optionally, the number of bolt holes 122 is greater than or equal to 3 and less than or equal to 12, and the more commonly used numbers of bolt holes 122 are 5, 6, 8, and 10. In this way, both the connection stability between the wheel and the vehicle hub can be ensured, and the aesthetic appearance of the wheel can be improved.

[0029] Optionally, the spoke 2 further includes at least one reinforcing rib structure 30. The reinforcing rib structure 30 is arranged on the spoke body 10 and is arranged at an interval from the bolt holes 122. In this way, by arranging the reinforcing rib structure 30 on the spoke body 10, the strength of the spoke 2 is further enhanced.

[0030] In an embodiment not shown in this application, there are a plurality of reinforcing rib structures 30, and no reinforcing rib structure 30 is arranged between some adjacent two bolt holes 122, and one or more reinforcing rib structures 30 are arranged between some adjacent two bolt holes 122.

[0031] In another embodiment not shown in this application, there are a plurality of reinforcing rib structures 30, and one or more reinforcing rib structures 30 are arranged between each adjacent two bolt holes 122.

[0032] Optionally, when there are a plurality of reinforcing rib structures 30 arranged between adjacent two bolt holes 122, the reinforcing rib structures 30 located between adjacent two bolt holes 122 are arranged at intervals.

[0033] Optionally, each reinforcing rib structure 30 can be connected to the boss 20 or arranged at an interval from the boss 20.

[0034] In Figure 3 and Figure 4 In the alternative embodiments shown, the spoke 2 further includes a rib structure 30 disposed on the spoke body 10, and one rib structure 30 is provided between two adjacent bosses 20. In this way, considering the processing cost and convenience of the rib structure 30, and considering the symmetry of the overall structure of the spoke 2, one rib structure 30 is provided between each two adjacent bosses 20, thereby further enhancing the strength of the spoke 2 and preventing the spoke 2 from cracking or deforming at the bolt holes 122 due to stress during use, which is beneficial to improving the practicality and service life of the spoke 2.

[0035] Optionally, the boss 20 and the rib structure 30 are integrally formed with the spoke body 10 and are formed by a hot stamping process. The spoke provided in this application is made by a hot stamping method, and the spoke 2 provided in this application is made of steel material. Using the hot stamping method can convert 100% of the spoke material into martensite. Since martensite has high strength, the spoke 2 can obtain high strength without increasing its weight. By providing the boss 20 and the rib structure 30, the strength of the spoke 2 provided in this application meets the load-bearing and installation requirements.

[0036] As Figure 3 and Figure 4 shown, the spoke body 10 includes a support ring plate 11 and an end plate 12. The end plate 12 is connected to the support ring plate 11 and is located on the inner peripheral side of the support ring plate 11. The shaft hole 121 and each bolt hole 122 are opened on the end plate 12. In this way, the spoke 2 is fixedly connected to the rim 1 through the support ring plate 11 to form a wheel. The wheel is connected to the vehicle hub through the shaft hole 121 and each bolt hole 122, and the hub is further connected to the vehicle axle, so that the wheel is driven to rotate by the axle.

[0037] As Figure 3 and Figure 4As shown, the support ring plate 11 encloses a conical cylinder structure, the inner diameter of the conical cylinder structure gradually increases in the direction away from the end plate 12, and a plurality of heat dissipation holes 111 are arranged at intervals in the circumferential direction of the support ring plate 11. The support ring plate 11 encloses a conical cylinder structure, the end plate 12 is arranged close to the small-diameter end of the support ring plate 11 relative to the large-diameter end of the support ring plate 11, and an avoidance space for the axle and hub of the vehicle is formed between the end plate 12 and the inner wall surface of the conical cylinder structure. In addition, during the braking process of the vehicle, high temperature will be generated on the braking device, resulting in an increase in the tire temperature, accelerating tire aging, and even causing serious accidents such as tire fire or explosion. Therefore, by arranging a plurality of heat dissipation holes 111 on the support ring plate 11, the wind flowing through the heat dissipation holes 111 can be used to cool the tire, thereby improving the service life of the tire and the use safety of the vehicle.

[0038] As Figure 3 and Figure 4 shown, the boss 20 protrudes from the axial outer surface of the end plate 12, and a reinforcing rib structure 30 is connected between two adjacent bosses 20. In this way, the boss 20 protrudes from the axial outer surface of the end plate 12, that is to say, after the wheel is assembled on the vehicle, the boss 20 protrudes in the direction away from the center of the vehicle, which is beneficial for workers to install bolts and other operations on the end plate 12. By connecting a reinforcing rib structure 30 between two adjacent bosses 20, the strength of the wheel spoke 2 is further improved.

[0039] Optionally, the boss 20 can also protrude from the axial inner surface of the end plate 12, or a boss 20 is arranged on both the axial inner surface and the axial outer surface of the end plate 12.

[0040] As Figure 3 and Figure 4 shown, the wheel spoke body 10 further includes a surrounding rib structure 13, the surrounding rib structure 13 is arranged at the connection between the support ring plate 11 and the end plate 12 and protrudes toward the side of the boss 20, and the end plate 12 is connected to the support ring plate 11 through the surrounding rib structure 13. In this way, the end plate 12 is connected to the support ring plate 11 through the surrounding rib structure 13, which can improve the connection stability between the end plate 12 and the support ring plate 11, and further improve the strength of the wheel spoke body 10.

[0041] As Figure 1 and Figure 3 shown, there is one surrounding rib structure 13, and the surrounding rib structure 13 is in a cylindrical shape, increasing the contact area between the surrounding rib structure 13 and the end plate 12 and the support ring plate 11, thereby ensuring the connection stability between the end plate 12 and the support ring plate 11.

[0042] Optionally, a plurality of notch structures are arranged at intervals on the cylindrical surrounding rib structure 13, so as to reduce the weight of the wheel spoke 2 while ensuring the stable connection between the end plate 12 and the support ring plate 11.

[0043] In an embodiment not shown in the present application, a plurality of surrounding rib structures 13 are arranged at intervals, and each surrounding rib structure 13 is an arc segment. While ensuring the stable connection between the end plate 12 and the support ring plate 11, the consumption of materials for the surrounding rib structure 13 is reduced, the weight of the spoke 2 is reduced, and the economic cost of the spoke 2 is lowered.

[0044] Optionally, the protruding height of the surrounding rib structure 13 is less than or equal to the protruding heights of the boss 20 and the reinforcing rib structure 30. In this way, when it is necessary to install double wheels, it can be ensured that the surfaces of the bosses 20 of the two wheels can fit, thereby increasing the contact area between the two wheels and ensuring the installation stability when installing double wheels.

[0045] In Figure 3 and Figure 4 In the specific embodiment shown, the protruding heights of the boss 20 and the reinforcing rib structure 30 are the same, and the protruding height of the surrounding rib structure 13 is equal to the protruding height of the boss 20. When it is necessary to install double wheels, the surfaces of the bosses 20, the reinforcing rib structure 30, and the surrounding rib structure 13 of the two wheels can all fit, further ensuring the installation stability when installing double wheels.

[0046] In an embodiment not shown in the present application, the protruding height of the surrounding rib structure 13 is greater than the protruding heights of the boss 20 and the reinforcing rib structure 30. That is to say, the boss 20 and the reinforcing rib structure 30 are prevented from protruding beyond the surrounding rib structure 13. In this way, not only can the appearance aesthetic of the spoke be improved, but also it can be ensured that during the handling and use of the spoke 2, the boss 20 and the reinforcing rib structure 30 are not easily worn and damaged by collision, thereby further improving the service life of the spoke 2.

[0047] As Figure 3 and Figure 4 shown, the boss 20 is annular, the inner hole of the annular boss 20 forms a bolt hole 122, the upper surface 21 of the boss 20 is a plane, and the outer diameter of the boss 20 gradually increases in the direction away from the upper surface 21. In this way, the upper surface 21 of the boss 20 is a plane, which is convenient for installing bolts, and the plane upper surface is also convenient for increasing the contact area between the boss 20 and the bolts, ensuring the stable connection between the bolts and the spoke 2. In addition, the outer diameter of the boss 20 gradually increases in the direction away from the upper surface 21. The boss 20 with such a structure has good strength, is also beneficial for stamping forming, and is convenient for mold withdrawal.

[0048] It should be noted that the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not require further discussion in subsequent drawings.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings. These orientation words are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0051] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper", etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure for the device. For example, if the device in the attached drawing is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0052] In addition, it should be noted that the use of terms such as "first", "second", etc. to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, so they should not be construed as limiting the protection scope of the present invention.

[0053] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0054] It should be noted that the terms "first", "second", etc. in the description, claims, and above-mentioned drawings of the present application are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order different from those illustrated or described here.

[0055] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A spoke, characterized in that, Comprising: A spoke body (10), on which a shaft hole (121) and a plurality of bolt holes (122) are formed. Among them, the plurality of bolt holes (122) are arranged at intervals in the circumferential direction around the shaft hole (121); A plurality of bosses (20), which are arranged on the spoke body (10) and are respectively arranged on the outer circumferential sides of the plurality of bolt holes (122); At least one reinforcing rib structure (30), which is arranged on the spoke body (10) and is arranged at intervals from the bolt holes (122); A support ring plate (11); An end plate (12), which is connected to the support ring plate (11) and is located on the inner circumferential side of the support ring plate (11). The shaft hole (121) and each bolt hole (122) are formed on the end plate (12); A surrounding rib structure (13), which is arranged at the connection between the support ring plate (11) and the end plate (12) and protrudes towards the side of the boss (20). The end plate (12) is connected to the support ring plate (11) through the surrounding rib structure (13). The boss (20) protrudes from the axial outer surface of the end plate (12). The protruding heights of the boss (20) and the reinforcing rib structure (30) are the same, and the protruding height of the surrounding rib structure (13) is less than or equal to the protruding heights of the boss (20) and the reinforcing rib structure (30). The boss (20) protrudes from the axial inner surface of the end plate (12); The support ring plate (11) encloses a conical cylinder structure. The end plate (12) is arranged close to the small-diameter end of the support ring plate (11) relative to the large-diameter end of the support ring plate (11). An avoidance space for avoiding the vehicle's axle and hub is formed between the end plate (12) and the inner wall surface of the conical cylinder structure.

2. The spoke according to claim 1, characterized in that, The boss (20) and the reinforcing rib structure (30) are of an integral structure with the spoke body (10) and are formed by a hot stamping process.

3. The spoke according to claim 1, characterized in that, The support ring plate (11) encloses a conical cylinder structure. The inner diameter of the conical cylinder structure gradually increases in the direction away from the end plate (12), and a plurality of heat dissipation holes (111) arranged at intervals in the circumferential direction around the support ring plate (11) are formed on the conical cylinder structure.

4. The spoke according to any one of claims 1 to 3, characterized in that And one reinforcing rib structure (30) is connected between two adjacent bosses (20).

5. The spoke according to claim 1, characterized in that, The boss (20) is annular. The inner hole of the annular boss (20) forms the bolt hole (122). The upper surface (21) of the boss (20) is a plane, and the outer diameter of the boss (20) gradually increases in the direction away from the upper surface (21).

6. A wheel, characterized in that, Comprising: A rim (1); A spoke (2), which is connected to the rim (1) and is located at one end of the rim (1) in the axial direction. The spoke (2) is the spoke according to any one of claims 1 to 5.

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