High-strength aluminum alloy hub
By installing curled edges and memory alloy support on the aluminum alloy wheel hub, the problem of easy cracks in the edges of the hub vents is solved, high strength and efficient heat dissipation of the wheel hub are achieved, and structural stability during the car is enhanced.
Patent Information
- Application Number
- CN202422466084.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-10-11
AI Technical Summary
Existing aluminum alloy wheels are prone to cracks at the edge of the vents, affecting the strength of the wheel hub.
The curling edges and support members are provided on the spokes, and the memory alloy bars are used to expand and abut against the reinforcement ribs at high temperatures to enhance the structural stability of the spokes and improve the heat dissipation efficiency through the coordination of the reinforcement ribs and the curling edges.
It improves the structural strength and heat dissipation efficiency of the wheel hub, reduces cracks at the edge of the vent, and enhances the stability of the wheel hub during the car driving.
Smart Images
Figure CN223085740U_ABST
Abstract
Description
Technical Field:
[0001] The utility model belongs to the technical field of aluminum alloy wheels, and particularly refers to a high-strength aluminum alloy wheel. Background Art:
[0002] Aluminum alloy wheels are gradually replacing steel wheels due to their light weight, good heat dissipation and good appearance. In a kneeling connection type semi-surface wheel, the rim of the spoke is designed as a kneeling edge type, so that the spoke can be connected to the inner wall of the bead seat of the rim in a kneeling manner, and the appearance surface of the spoke can be effectively enlarged.
[0003] In related technologies, a large number of ventilation openings are reserved in the kneeling connection type semi-surface wheel. During the driving of the vehicle, the stress on the wheel is complex, and the spokes located at the edges of the ventilation openings are prone to cracks, thus affecting the strength of the wheel hub, which needs to be improved. Summary of the Invention:
[0004] The purpose of the utility model is to increase the strength of the wheel hub, and a high-strength aluminum alloy wheel is provided.
[0005] The utility model is realized as follows:
[0006] A high-strength aluminum alloy wheel includes a spoke and a rim provided on the spoke. The spoke is provided with a plurality of ventilation openings, and the plurality of ventilation openings are arranged in a circumferential array. The spoke is provided with a plurality of curled edges, and the curled edges are arranged corresponding to the ventilation openings. The curled edges are arranged around the corresponding ventilation openings, and the curled edges and the spoke are spliced to form a support gap. The spoke is provided with a plurality of support members, and the plurality of support members are located in the support gap. The support members abut against the curled edges for support.
[0007] Preferably, the support member is a shape memory alloy strip.
[0008] Preferably, one end of the curled edge away from the ventilation opening is spaced from the spoke, and the shape memory alloy strip expands when heated and protrudes from the support gap.
[0009] Preferably, the spoke is provided with a plurality of reinforcing ribs arranged in a circumferential array.
[0010] Preferably, the ventilation openings are located between adjacent reinforcing ribs, and the shape memory alloy strip expands when heated and abuts against the reinforcing ribs.
[0011] Preferably, a support surface is formed on the reinforcing rib, and the support surface is located on the extension path of the shape memory alloy strip, and the support surface is used to abut against the shape memory alloy strip.
[0012] Preferably, the reinforcing rib is tapered in a direction away from the spoke.
[0013] Preferably, a plurality of notches are spaced apart on the curled edge.
[0014] The prominent advantages of the present utility model compared with the prior art are as follows:
[0015] 1. By providing a curled edge, the stress area near the spoke ventilation opening is increased, which is beneficial to improving the heat dissipation efficiency of the hub. When an obstacle impacts the inner wall of the ventilation opening, cracks are not likely to appear at the spoke, and then using a support member to support the curled edge is beneficial to increasing the overall structural strength of the spoke, and thus beneficial to improving the strength of the hub;
[0016] 2. During the operation of the vehicle, when the hub heats up, using a support member to support the curled edge makes the curled edge not easily deformed, which is beneficial to improving the strength of the hub;
[0017] 3. During the driving of the vehicle, when the temperature of the wheel rises, the shape memory alloy strip expands due to heat and penetrates through the gap between the curled edge and the spoke to abut against the reinforcing ribs on both sides of the corresponding ventilation opening, which is beneficial to maintaining the structural stability of the hub during the driving of the vehicle. Description of the Drawings:
[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0019] Figure 2 is a cross-sectional view of the present utility model, mainly showing the structure at the ventilation opening and the curled edge.
[0020] Figure 3 is Figure 2 an enlarged view of part A in
[0021] mainly showing the structure inside the support gap. Specific Embodiments:
[0022] The following further describes the present utility model with specific embodiments. Refer to Figure 1 —3:
[0023] An embodiment of the present utility model discloses a high-strength aluminum alloy hub. Refer to Figure 1 and Figure 2 A high-strength aluminum alloy hub includes a spoke 1 and a rim 2. The rim 2 is arranged around the outer circumference of the spoke 1, and the spoke 1 and the rim 2 are fixedly welded.
[0024] Refer to Figure 1, a central hole 11 for the vehicle axle to pass through is provided on the spoke 1. The spoke 1 rotates around the vehicle axle. A plurality of ventilation openings 12 are provided on the spoke 1, and the plurality of ventilation openings 12 are circumferentially arrayed around the outer periphery of the central hole 11. A plurality of reinforcing ribs 13 are fixed on the spoke 1, and the plurality of reinforcing ribs 13 are circumferentially arrayed around the outer periphery of the central opening. The plurality of ventilation openings 12 are located between adjacent reinforcing ribs 13, and the plurality of reinforcing ribs 13 are located between adjacent ventilation openings 12. The reinforcing ribs 13 are tapered in a direction away from the spoke 1, and the reinforcing ribs 13 are used to increase the structural strength of the wheel hub. In this embodiment, the number of the reinforcing ribs 13 is 6, the number of the ventilation openings 12 is 6, and the materials of the spoke 1 and the rim 2 are both aluminum alloy.
[0025] Refer to Figure 1 and Figure 2 , a plurality of curled edges 14 are fixed on the spoke 1. The positions and numbers of the curled edges 14 correspond one by one to the positions and numbers of the ventilation openings 12. The curled edges 14 are arranged around the outer periphery of the corresponding ventilation openings 12. The curled edges 14 and the spoke 1 are integrally formed. The curled edges 14 are flipped in a direction away from the corresponding ventilation openings 12. The shape of the side of the curled edge 14 close to the ventilation opening 12 is consistent with the inner wall shape of the corresponding ventilation opening 12. One end of the curled edge 14 away from the ventilation opening 12 is spaced from the spoke 1, and the curled edge 14 and the spoke 1 are spliced to form a support gap 141.
[0026] Refer to Figure 2 and Figure 3 , a plurality of support members 15 are fixed on the spoke 1. The support members 15 are shape memory alloy strips 151. The positions and numbers of the shape memory alloy strips 151 correspond one by one to the positions and numbers of the support gaps 141. The shape memory alloy strips 151 are located in the corresponding support gaps 141. The shape memory alloy strips 151 abut against the curled edges 14 to support the curled edges 14 so that the curled edges 14 are not easily broken. In other embodiments, the shape memory alloy strips 151 can also be aluminum alloy strips.
[0027] During the running of the vehicle, the curled edges 14 increase the overall heat dissipation area of the spoke 1, which is beneficial to improving the heat dissipation capacity of the wheel hub. In addition, when small obstacles such as stones and branches hit the wheel, the contact area between the spoke 1 and the obstacles is increased, which is beneficial to reducing cracks and improving the wheel life.
[0028] Refer to Figure 3 , a plurality of support surfaces 131 are formed on the reinforcing ribs 13. The plurality of support surfaces 131 are respectively located on the opposite sides of the reinforcing ribs 13 close to the ventilation openings 12. The plurality of support surfaces 131 are flat surfaces, and the support surfaces 131 are used for the shape memory alloy strips 151 extending out of the support gaps 141 to abut against; the material of the shape memory alloy strips 151 in this embodiment is nickel-titanium alloy.
[0029] In summary, by connecting the reinforcing rib 13 and the curled edge 14 with the shape memory alloy strip 151, when the temperature is relatively high, for example, during the high-speed driving of a vehicle, the shape memory alloy strip 151 absorbs heat and passes through the support gap 141, which is beneficial to increasing the heat dissipation efficiency of the wheel hub. The shape memory alloy strip 151 passing through the support gap 141 connects the reinforcing rib 13 and the curled edge 14, which is beneficial to maintaining the structural stability of the spoke 1 under high-speed driving.
[0030] Moreover, when the ambient temperature is relatively low, the shape memory alloy strip 151 contracts to adjust its shape, which is beneficial to maintaining the stability and integrity of the wheel hub structure.
[0031] Referring to Figure 1 , a plurality of notches 142 are spaced apart on the curled edge 14. The plurality of notches 142 are located on the side of the curled edge 14 close to the corresponding ventilation opening 12. The notches 142 communicate with the support gap 141, which is beneficial to reducing the weight of the wheel hub.
[0032] The implementation principle of the high-strength aluminum alloy wheel hub in the embodiment of the present application is as follows: through the structural cooperation between the shape memory alloy and the curled edge 14, the structural strength of the wheel hub near the ventilation opening 12 is improved, and by connecting the reinforcing rib 13 and the curled edge 14 with the shape memory alloy strip 151 at high temperature, the structural strength of the wheel hub during driving is improved.
[0033] The above embodiments are only one of the preferred embodiments of the present invention, and do not limit the scope of implementation of the present invention. Therefore, all equivalent changes made according to the shape, structure, and principle of the present invention should be covered within the protection scope of the present invention.
Claims
1. A high-strength aluminum alloy wheel hub, comprising a spoke (1) and a rim (2) provided on the spoke (1), characterized in that: The spoke (1) is provided with a plurality of ventilation openings (12), and the plurality of ventilation openings (12) are distributed in a circumferential array. The spoke (1) is provided with a plurality of curled edges (14), and the curled edges (14) are arranged corresponding to the ventilation openings (12). The curled edges (14) are arranged around the corresponding ventilation openings (12). The curled edges (14) and the spoke (1) are spliced to form a support gap (141). The spoke (1) is provided with a plurality of support members (15), and the plurality of support members (15) are located in the support gap (141). The support members (15) abut against the curled edges (14) for support.
2. A high-strength aluminum alloy wheel according to claim 1, characterized in that: The support member (15) is a shape memory alloy strip (151).
3. A high-strength aluminum alloy wheel according to claim 2, characterized in that: One end of the curled edge (14) away from the ventilation opening (12) is spaced from the spoke (1), and the shape memory alloy strip (151) expands when heated and protrudes out of the support gap (141).
4. A high-strength aluminum alloy wheel according to claim 3, characterized in that: The spoke (1) is provided with a plurality of reinforcing ribs (13) distributed in a circumferential array.
5. The high-strength aluminum alloy wheel according to claim 4, wherein: The ventilation opening (12) is located between adjacent reinforcing ribs (13), and the shape memory alloy strip (151) expands when heated and abuts against the reinforcing rib (13).
6. A high-strength aluminum alloy wheel according to claim 5, characterized in that: A support surface (131) is formed on the reinforcing rib (13), and the support surface (131) is located on the extension path of the shape memory alloy strip (151). The support surface (131) is used for the shape memory alloy strip (151) to abut against.
7. The high-strength aluminum alloy wheel according to claim 4, characterized in that: The reinforcing rib (13) is tapered in a direction away from the spoke (1).
8. A high-strength aluminum alloy wheel according to claim 1, characterized in that: A plurality of notches (142) are spaced apart on the curled edge (14).