Wheel

Abstract

The present invention provides a wheel, which includes a rim, spokes, a positioning element and a fastener. Among them, the rim includes a rim body and a bent flange, and the bent flange is connected to the periphery of one axial end of the rim body and extends by bending; the spokes are arranged at one axial end of the rim, and the axial inner surface of the spokes is adaptively attached to the first axial end surface of the bent flange. A first positioning hole is formed in the spokes; the first end of the positioning element is connected to the bent flange, and the second end of the positioning element passes through the first positioning hole and is connected to the fastener to tightly connect the rim and the spokes. The present invention solves the problems that before welding the spokes and the rim of the wheel in the prior art, the two cannot be reliably locked, reducing the installation accuracy of the spokes, and after the two are assembled, the contact area between the two is too small to ensure that the spokes provide a stable and reliable supporting effect for the rim.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and more particularly, to a structural improvement of a wheel. Background Art

[0002] In the prior art, the spoke and the rim of a wheel are fixedly connected by welding. However, before welding the spoke to the rim, the rim and the spoke need to be arranged in a predetermined relative position and then welded. During this process, the two cannot be reliably locked, resulting in the spoke and the rim may shift during the welding operation, thus unable to ensure the coaxiality of the rim and the spoke, and reducing the installation accuracy of the spoke.

[0003] In addition, after the rim and the spoke of the existing wheel are assembled, the contact area between the two is too small to ensure that the spoke provides a stable and reliable supporting effect for the rim, and unable to ensure that the wheel has a reliable radial load-bearing capacity. When the vehicle is subjected to a radial load, the deformation of the rim is large, seriously affecting the normal driving of the vehicle and even threatening the life safety of the passengers. Summary of the Invention

[0004] The main object of the present invention is to provide a wheel to solve the problems that the spoke and the rim of the wheel in the prior art cannot be reliably locked before welding, reducing the installation accuracy of the spoke, and after the two are assembled, the contact area between the two is too small to ensure that the spoke provides a stable and reliable supporting effect for the rim.

[0005] To achieve the above object, the present invention provides a wheel, including a rim, a spoke, a positioning element and a fastener. Among them, the rim includes a rim body and a bent flange, and the bent flange is connected to the periphery of one axial end of the rim body and extends by bending; the spoke is arranged at one axial end of the rim, and the axial inner surface of the spoke is adaptively attached to the axial first end face of the bent flange. A first positioning hole is formed on the spoke; the first end of the positioning element is connected to the bent flange, and the second end of the positioning element passes through the first positioning hole and is connected to the fastener to tightly connect the rim and the spoke.

[0006] Further, a second positioning hole is formed at a position of the bent flange opposite to the first positioning hole, and a stop step surface is formed in the second positioning hole. The positioning element includes a connected positioning post and a stop end. Among them, the stop end stops at the stop step surface, and the positioning post extends out of the second positioning hole and passes through the first positioning hole to be connected to the fastener.

[0007] Furthermore, the bent flange includes a radially extending ring plate section, a transition ring plate section, and an axially extending ring plate section that are connected in sequence in a direction away from the rim body. Among them, the second positioning hole is formed in the radially extending ring plate section, the transition ring plate section extends in a curved shape, and the axial inner surface of the spoke is adaptively attached to the surfaces of both the radially extending ring plate section and the transition ring plate section.

[0008] Furthermore, the end face of the stop end away from the positioning post is flush with the axial second end face of the bent flange.

[0009] Furthermore, the axially extending ring plate section protrudes from the axial outer surface of the spoke.

[0010] Furthermore, the end face of the axially extending ring plate section away from the transition ring plate section is a smooth curved surface.

[0011] Furthermore, the first end of the positioning element is welded to the end face of the bent flange facing the spoke; or the positioning element is integrally formed with the bent flange.

[0012] Furthermore, an external thread structure is formed on the outer wall surface of the positioning element, and the fastener is threadedly connected to the positioning element and abuts against the axial outer surface of the spoke.

[0013] Furthermore, the spoke and the rim are welded, and a first weld bead structure and / or a second weld bead structure are formed at the connection between the two. Among them, the first weld bead structure is located at the contact position between the stop end and the rim, and the second weld bead structure is located at the contact position between the fastener and the spoke.

[0014] Furthermore, the thickness of the bent flange is the same as that of the rim body, and the bent flange is integrally connected to the rim body.

[0015] Applying the technical solution of the present invention provides a wheel with a positioning element and a fastener, ensuring the coaxiality between the welded spoke and rim, optimizing the connection position between the spoke and the rim, and ensuring that the wheel has reliable radial load-bearing capacity.

[0016] Specifically, by optimizing the structural composition of the wheel, the wheel includes a positioning element and a fastener. In this way, during the process of installing the spoke onto the rim before welding the spoke and the rim, since the first end of the positioning element is connected to the bent flange, the operator only needs to pass the second end of the positioning element through the first positioning hole and connect it to the fastener, thereby accurately positioning and installing the spoke onto the rim. Moreover, the spoke and the rim are firmly connected by the positioning element and the fastener, effectively avoiding the relative displacement of the two during the subsequent welding operation, improving the installation accuracy of the spoke, and ensuring the coaxiality between the welded spoke and rim.

[0017] In addition, by optimizing the connection position between the spoke and the rim, the axial inner surface of the spoke is adaptively fitted to the axial first end surface of the bent and flanged part of the rim, that is, the axial inner surface of the spoke is directly and adaptively fitted to the surface of the bent and flanged part, increasing the contact area between the two, ensuring that the spoke can provide a stable and reliable supporting effect for the rim, thereby ensuring that the wheel has a reliable radial load-bearing capacity. In this way, when the vehicle is subjected to a radial load, the rim will not undergo large deformation to affect the normal driving of the vehicle, thus ensuring the safety of the passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings 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:

[0019] Figure 1 shows a cross-sectional schematic view of a wheel according to an alternative embodiment of the present invention;

[0020] Figure 2 shows Figure 1 an enlarged schematic view of part A in

[0021] Figure 3 shows Figure 2 the state schematic view of the wheel in

[0022] Figure 4 after welding the spoke and the rim at the positioning element by using the first welding method; Figure 2 shows

[0023] Figure 5 shows Figure 2 the state schematic view of the wheel in

[0024] after welding the spoke and the rim at the positioning element by using the second welding method;

[0025] 10, rim; 11, rim body; 12, bent and flanged part; 20, spoke; 21, first positioning hole; 30, positioning element; 40, fastener; 13, second positioning hole; 131, stop step surface; 31, positioning post; 32, stop end; 121, radial ring plate section; 122, transition ring plate section; 123, axial ring plate section; 33, external thread structure; 100, first weld bead structure; 200, second weld bead structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying 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 on 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.

[0027] To solve the problems in the prior art that the spokes and rims of wheels cannot be reliably locked before welding, reducing the installation accuracy of the spokes, and after the two are assembled, the contact area between the two is too small to ensure that the spokes provide a stable and reliable supporting effect for the rims, the present invention provides a wheel.

[0028] As Figure 1 and Figure 2 shown, the wheel includes a rim 10, a spoke 20, a positioning element 30, and a fastener 40. Among them, the rim 10 includes a rim body 11 and a bent flange 12. The bent flange 12 is connected to the periphery of one axial end of the rim body 11 and bends and extends; the spoke 20 is arranged at one axial end of the rim 10, and the axial inner surface of the spoke 20 is adaptively attached to the first axial end face of the bent flange 12. A first positioning hole 21 is provided on the spoke 20; the first end of the positioning element 30 is connected to the bent flange 12, and the second end of the positioning element 30 passes through the first positioning hole 21 and is connected to the fastener 40 to tightly connect the rim 10 and the spoke 20.

[0029] The present application provides a wheel with a positioning element 30 and a fastener 40, ensuring the coaxiality between the spoke 20 and the rim 10 after welding and optimizing the connection position between the spoke 20 and the rim 10 to ensure that the wheel has a reliable radial load-bearing capacity.

[0030] Specifically, by optimizing the structural composition of the wheel, the wheel includes a positioning element 30 and a fastener 40. In this way, during the process of installing the spoke 20 on the rim 10 before welding the spoke 20 and the rim 10, since the first end of the positioning element 30 is connected to the bent flange 12, the operator only needs to pass the second end of the positioning element 30 through the first positioning hole 21 and then connect it to the fastener 40, thereby accurately installing and positioning the spoke 20 on the rim 10. Moreover, the spoke 20 and the rim 10 are tightly connected by the positioning element 30 and the fastener 40, effectively avoiding the relative displacement of the two during the subsequent welding operation, improving the installation accuracy of the spoke 20, and ensuring the coaxiality between the spoke 20 and the rim 10 after welding.

[0031] In addition, by optimizing the connection position between the spoke 20 and the rim 10, the axial inner surface of the spoke 20 is adaptively fitted to the axial first end surface of the bent flange 12 of the rim 10, that is, the axial inner surface of the spoke 20 is directly and adaptively fitted to the surface of the bent flange 12, increasing the contact area between the two, ensuring that the spoke 20 can provide a stable and reliable supporting effect for the rim 10, thereby ensuring that the wheel has a reliable radial load-bearing capacity. In this way, when the vehicle is subjected to a radial load, the rim 10 will not undergo large deformation to affect the normal driving of the vehicle, thus ensuring the safety of the passengers.

[0032] As Figures 2 to 5 shown, a second positioning hole 13 is formed at a position of the bent flange 12 opposite to the first positioning hole 21. A stop step surface 131 is formed in the second positioning hole 13. The positioning element 30 includes a connected positioning post 31 and a stop end 32. Among them, the stop end 32 stops at the stop step surface 131, and the positioning post 31 passes through the first positioning hole 21 after extending out of the second positioning hole 13 and is connected to the fastener 40. In this way, after the positioning element 30 passes through the second positioning hole 13 and the first positioning hole 21 in sequence, it is ensured that the stop end 32 stops at the stop step surface 131, preventing the positioning element 30 from falling off from the side of the first positioning hole 21 away from the rim 10 and failing to position the spoke 20, thereby ensuring the installation accuracy of the spoke 20.

[0033] As Figure 2 shown, the bent flange 12 includes a radially extending ring plate section 121, a transition ring plate section 122, and an axially extending ring plate section 123 that are connected in sequence along the direction away from the rim body 11. Among them, the second positioning hole 13 is formed in the radially extending ring plate section 121, the transition ring plate section 122 extends in a curved shape, and the axial inner surface of the spoke 20 is adaptively fitted to the surface of the radially extending ring plate section 121 and the surface of the transition ring plate section 122 at the same time. In this way, when the wheel is subjected to a radial load, since the transition ring plate section 122 of the bent flange 12 is most likely to deform, by adaptively fitting the axial inner surface of the spoke 20 to the surface of the radially extending ring plate section 121 and the surface of the transition ring plate section 122 at the same time, it is ensured that the contact area between the spoke 20 and the rim 10 is large enough, thereby ensuring that the spoke 20 can provide a stable and reliable supporting effect for the radially extending ring plate section 121 and the transition ring plate section 122 at the same time, preventing the structural strength of the rim 10 from being affected due to the large deformation of the transition ring plate section 122, and ensuring the normal driving of the vehicle.

[0034] As Figure 2As shown, the end face of the stop end 32 away from the positioning post 31 is flush with the second axial end face of the bent flange 12. In this way, it is avoided that the stop end 32 protrudes from the second positioning hole 13 on the rim 10 and occupies the installation space of the tire, resulting in air leakage after the tire is inflated. After the tire is installed on the wheel, it is ensured that the tire has sufficient installation space, so as to ensure that the tire will not interfere with the stop end 32 due to the increase in the volume of the tire after inflation, and ensure that there is no air leakage after the tire is inflated.

[0035] As Figures 2 to 5 shown, the axial ring plate section 123 protrudes from the axial outer surface of the spoke 20. In this way, on the premise of ensuring that the axial inner surface of the spoke 20 is adaptively fitted to the surfaces of both the radial ring plate section 121 and the transition ring plate section 122, a lightweight design of the spoke 20 is carried out, which is beneficial to the lightweight design of the wheel.

[0036] It should be noted that in the present application, the end face of the axial ring plate section 123 away from the transition ring plate section 122 is a smooth curved surface. In this way, it is ensured that the end face of the axial ring plate section 123 away from the transition ring plate section 122 is adapted to the inner wall surface of the tire, and it is avoided that the tire is worn due to the protrusion on the end face of the axial ring plate section 123 away from the transition ring plate section 122.

[0037] It should be noted that in an embodiment not shown in the present application, the first end of the positioning element 30 is welded to the end face of the bent flange 12 facing the spoke 20; in this way, the positioning element 30 is firmly connected to the bent flange 12, ensuring that when the spoke 20 is installed on the rim 10, the spoke 20 can be accurately installed and positioned on the rim 10 with only one positioning.

[0038] It should be noted that in another embodiment not shown in the present application, the positioning element 30 and the bent flange 12 are integrally formed. In this way, while ensuring the connection reliability between the positioning element 30 and the bent flange 12, the manufacturing difficulty of the positioning element 30 is reduced, which is beneficial to improving the economy of the wheel.

[0039] As Figures 2 to 5 shown, an external thread structure 33 is formed on the outer wall surface of the positioning element 30, and the fastener 40 is threadedly connected to the positioning element 30 and abuts against the axial outer surface of the spoke 20. In this way, through the threaded connection between the fastener 40 and the external thread structure 33 on the outer wall surface of the positioning post 31, the connection reliability between the spoke 20 and the rim 10 is ensured, so as to ensure that during the subsequent welding process of the spoke 20 and the rim 10, there will be no displacement between the two, and further ensure the coaxiality of the spoke 20 and the rim 10.

[0040] As Figure 3As shown, the spoke 20 is welded to the rim 10, and a first weld bead structure 100 is formed at the connection between the two, and the first weld bead structure 100 is located at the contact position between the stop end 32 and the rim 10. In this way, by forming the first weld bead structure 100 at the contact position between the stop end 32 and the rim 10, it is ensured that the spoke 20 and the rim 10 are indirectly welded together through the positioning element 30. Since the first weld bead structure 100 is formed at the contact position between the stop end 32 and the rim 10, the welding area between the spoke 20 and the rim 10 is greatly increased, thus ensuring the welding stability between the spoke 20 and the rim 10; in addition, the first weld bead structure 100 plays a role in limiting the positioning element 30, ensuring that the positioning element 30 is firmly connected to the spoke 20 and the rim 10, and preventing the positioning element 30 from shaking during vehicle driving and affecting the normal driving of the vehicle.

[0041] As Figure 4 shown, the spoke 20 is welded to the rim 10, and a second weld bead structure 200 is formed at the connection between the two, and the second weld bead structure 200 is located at the contact position between the fastener 40 and the spoke 20. In this way, by forming the second weld bead structure 200 at the contact position between the fastener 40 and the spoke 20, it is ensured that the spoke 20 and the rim 10 are indirectly welded together through the positioning element 30. Since the second weld bead structure 200 is formed at the contact position between the fastener 40 and the spoke 20, the welding area between the spoke 20 and the rim 10 is greatly increased, thus ensuring the welding stability between the spoke 20 and the rim 10; in addition, the second weld bead structure 200 plays a role in limiting the positioning element 30, ensuring that the positioning element 30 is firmly connected to the spoke 20 and the rim 10, and preventing the positioning element 30 from shaking during vehicle driving and affecting the normal driving of the vehicle.

[0042] As Figure 5 shown, the spoke 20 is welded to the rim 10, and a first weld bead structure 100 and a second weld bead structure 200 are formed at the connection between the two. Among them, the first weld bead structure 100 is located at the contact position between the stop end 32 and the rim 10, and the second weld bead structure 200 is located at the contact position between the fastener 40 and the spoke 20. In this way, by forming the first weld bead structure 100 at the contact position between the stop end 32 and the rim 10, and forming the second weld bead structure 200 at the contact position between the fastener 40 and the spoke 20, it is ensured that a double firm connection is formed between the spoke 20 and the rim 10, ensuring that the welding area between the spoke 20 and the rim 10 is large enough, thus ensuring the welding stability between the spoke 20 and the rim 10, and also ensuring that the positioning element 30 is firmly connected to the spoke 20 and the rim 10, and preventing the positioning element 30 from shaking during vehicle driving and affecting the normal driving of the vehicle.

[0043] It should be noted that in this application, the thickness of the bent flange 12 is the same as that of the rim body 11, and the bent flange 12 is integrally connected to the rim body 11. In this way, it is ensured that the thickness of the bent flange 12 remains unchanged during the extension process, thereby ensuring the overall structural strength of the rim 10.

[0044] 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 "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] 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, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, 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 need to be further discussed in subsequent drawings.

[0046] For the sake of convenience of description, spatial relative terms such as "above", "over", "on the upper surface", "above" can be used herein to describe the spatial positional relationship of a device or feature shown in the drawings with other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" 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 herein.

[0047] It should be noted that the terms used herein are only for describing specific embodiments 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.

[0048] It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. 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 wheel, characterized in that, comprising: a rim (10), the rim (10) includes a rim body (11) and a bent flange (12), the bent flange (12) is connected to the periphery of one axial end of the rim body (11) and extends in a curved manner, the bent flange (12) includes a radially annular plate section (121), a transition annular plate section (122) and an axial annular plate section (123) connected in sequence along the direction away from the rim body (11), wherein, the transition annular plate section (122) extends in a curved shape, and the end face of the axial annular plate section (123) away from the transition annular plate section (122) is a smooth curved surface; a spoke (20), the spoke (20) is arranged at one axial end of the rim (10), and the axial inner surface of the spoke (20) is adaptively attached to the first axial end face of the bent flange (12), a first positioning hole (21) is formed on the spoke (20), and the axial inner surface of the spoke (20) is also adaptively attached to the surface of the radially annular plate section (121) and the surface of the transition annular plate section (122); a positioning element (30) and a fastener (40), the first end of the positioning element (30) is connected to the bent flange (12), and the second end of the positioning element (30) passes through the first positioning hole (21) and is connected to the fastener (40) to tightly connect the rim (10) and the spoke (20).

2. The wheel according to claim 1, characterized in that, a second positioning hole (13) is formed at a position of the bent flange (12) opposite to the first positioning hole (21), a stop step surface (131) is formed in the second positioning hole (13), the positioning element (30) includes a connected positioning post (31) and a stop end (32), wherein, the stop end (32) stops at the stop step surface (131), and the positioning post (31) extends out of the second positioning hole (13) and then passes through the first positioning hole (21) to be connected to the fastener (40).

3. The wheel according to claim 2, characterized in that, the second positioning hole (13) is formed on the radially annular plate section (121).

4. The wheel according to claim 2, characterized in that, the end face of the stop end (32) away from the positioning post (31) is flush with the second axial end face of the bent flange (12).

5. The wheel according to claim 4, characterized in that, the axial annular plate section (123) protrudes from the axial outer surface of the spoke (20).

6. The wheel according to claim 1, characterized in that, the first end of the positioning element (30) is welded to the end face of the bent flange (12) facing the spoke (20); or the positioning element (30) is integrally formed with the bent flange (12).

7. The wheel according to claim 2 or 6, characterized in that, An external thread structure (33) is formed on the outer wall surface of the positioning element (30), and the fastener (40) is threadedly connected to the positioning element (30) and abuts against the axial outer surface of the spoke (20).

8. The wheel according to claim 2, wherein, the spoke (20) is welded to the rim (10), and a first weld bead structure (100) and / or a second weld bead structure (200) is formed at the connection between the two, wherein the first weld bead structure (100) is located at the contact position between the stop end (32) and the rim (10), and the second weld bead structure (200) is located at the contact position between the fastener (40) and the spoke (20).

9. The wheel according to claim 1, wherein, the thickness of the bent flange (12) is the same as the thickness of the rim body (11), and the bent flange (12) is integrally connected to the rim body (11).

Images