Wheel assembly with hollow tire and multi-body hub

Abstract

A wheel assembly with a hollow tire and a multi-body type hub comprises the hollow tire and the multi-body type hub. The wheel assembly is different from a traditional wheel assembly, tire gas sealing does not depend on sealing of a traditional tire and a hub, and tire gas is all located in the hollow tire. And valve holes are formed in the hollow tire. The multi-body type hub comprises a plurality of rims, a wheel disc and a rim top disc. Two ends of the strip-shaped rim are fixedly connected with the wheel disc and the rim top disc; and the hollow tire is mounted on the multi-body hub and comprises an inner tire and an outer tire. The hub and the tire are designed in a matched mode, the internal pressure of the tire is transmitted to the tire with better pressure bearing capacity, the overall weight of an automobile chassis can be reduced on the basis that the mechanical performance is improved, and a direction is provided for the pressure bearing capacity and overall lightweight design of an automobile.

Description

Technical Field

[0001] The invention relates to the technical field of automobile wheels, specifically a wheel assembly consisting of a hollow tire and a multi-body hub. Background Art

[0002] With natural resources becoming increasingly scarce, further reducing vehicle weight, fuel consumption, and exhaust emissions is the future of modern automotive technology. Traditional weight reduction efforts often involve optimizing the structural design of a single component. This invention combines the wheel and tire components, simultaneously designing their shapes and optimizing the weight reduction solution. Summary of the Invention

[0003] In view of this, the present invention aims to provide a wheel assembly comprising a hollow tire and a multi-body wheel hub, which can reduce the overall weight of the automobile chassis while improving mechanical performance.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A wheel assembly of a hollow tire and a multi-body hub comprises a multi-body hub and a hollow tire. The multi-body hub comprises a plurality of rims, with both ends of the rims fixedly connected to a wheel disc and a rim top plate. The hollow tire mounted on the multi-body hub comprises an inner tire and an outer tire.

[0006] In some embodiments, the multi-piece hub is composed of multiple rims, wheel discs, and rim top discs.

[0007] In some embodiments, the rim is a composite structure including a plurality of strip-shaped rims, the production process includes one or more of casting, forging, and milling, and the production material includes Al alloy or Mg alloy.

[0008] In some embodiments, the wheel disc is a single-body structure, the production process includes one or more of casting, forging, and milling, and the production material includes Al alloy or Mg alloy.

[0009] In some embodiments, the rim top plate is a single-body structure, the production process includes one or more of casting, forging, and milling, and the production material includes Al alloy or Mg alloy.

[0010] In some embodiments, the plurality of rims are connected to the wheel disc and the rim top disc by welding or bolting.

[0011] In some embodiments, the inner tire and the outer tire of the hollow tire are formed into a closed cavity by extrusion molding, and the production materials are one or more of rubber, steel wire, and nylon.

[0012] In some embodiments, a valve hole structure is provided on the inner tire.

[0013] In some embodiments, the number of the strip rims is 2-50, the width is 1-100 mm, and the thickness is 1-20 mm.

[0014] In some embodiments, the outer tire has a thickness of 5-25 mm and the inner tire has a thickness of 2-25 mm.

[0015] In some embodiments, a hollow tire is mounted on a multi-body wheel hub, and after being inflated, the inner tire is tightly attached to the strip-shaped rim.

[0016] In some embodiments, the valve nozzle is installed through the valve hole structure on the inner tire. After inflation, the gas is located inside the hollow tire and the pressure squeezes the inner tire.

[0017] In some embodiments, the rim includes a plurality of strip-shaped rims. Al alloy or Mg alloy material is melted and then cast into a mold to form a rim blank. The blank is heat treated and then milled to complete the manufacturing.

[0018] In some embodiments, the rim includes a plurality of strip-shaped rims, and the Al alloy or Mg alloy material is forged into a blank, and the blank is milled to complete the manufacturing process.

[0019] In some embodiments, the wheel disc is a single-body structure, and the Al alloy or Mg alloy material is smelted and then cast into a mold to form a blank, which is then heat-treated and then milled to complete the manufacturing process.

[0020] In some embodiments, the wheel disc is a single-body structure, and the Al alloy or Mg alloy material is forged into a blank, and the blank is manufactured after a milling process.

[0021] In some embodiments, the rim, wheel disc and rim top plate are fixed, turned and milled, pre-cleaned, dried and sprayed with paint.

[0022] Compared with the prior art, the wheel assembly of the hollow tire and the multi-body hub of the present invention has the following advantages:

[0023] The present invention transfers the internal pressure of the tire to the tire with better pressure-bearing capacity by matching the wheel hub and tire design. This can reduce the overall weight of the vehicle chassis while improving the mechanical performance, and provides a direction for the pressure-bearing capacity and overall lightweight design of the vehicle.

[0024] Through the new wheel and tire design, it still has excellent mechanical properties and meets the American wheel standards SAE J175 and SAE J328-2005, namely 13-degree impact strength, 90-degree impact strength, radial impact, radial fatigue, and bending fatigue performance requirements. It also meets the national standards GB / T5334-2005 and GB / T 15704-1995 for wheel strength and fatigue. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 Schematic diagram of the multi-body wheel assembly of the present invention.

[0027] Figure 2 Schematic diagram of the wheel disc of the multi-body wheel assembly of the present invention.

[0028] Figure 3 Schematic diagram of the rim of the multi-body wheel assembly of the present invention.

[0029] Figure 4 Schematic diagram of the top plate of the multi-body wheel assembly of the present invention.

[0030] Figure 5 Schematic diagram of the rim and top plate matching of the multi-body wheel assembly of the present invention.

[0031] Figure 6 Schematic diagram of the outer tire of the multi-body wheel assembly of the present invention.

[0032] Figure 7 Schematic diagram of the inner tire of the multi-body wheel assembly of the present invention.

[0033] Figure 8 Schematic diagram of the tire matching of the multi-body wheel assembly of the present invention.

[0034] Description of Reference Numerals

[0035] 11 - wheel disc; 12 - rim; 13 - rim top plate; 21 - inner tire; 22 - outer tire; 23 - valve. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0037] The following will clearly and completely describe the technical solutions of the present invention with reference to the accompanying drawings and in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] Reference below Figures 1 to 8 The multi-body wheel assembly according to the embodiment of the present invention is described in conjunction with the embodiments.

[0039] A wheel assembly comprising a hollow tire and a multi-part hub includes a multi-part hub, which is composed of a wheel disc 11, a rim 12, and a rim top plate 13. The strip rim 12 comprises a plurality of strips, secured to the wheel disc 11 and the rim top plate 13 by welding and bolts. The number of strip rims 12 ranges from 2 to 50, with each strip rim 12 having a width range of 1 to 100 mm and a thickness range of 1 to 20 mm. The strip rim 12 is made of one or more of an Al alloy and a Mg alloy. The strip rim 12 is formed by one or more of low-pressure casting, differential pressure casting, high-pressure casting, and extrusion.

[0040] The wheel disc 11 is made of one or more materials selected from the group consisting of Al alloy and Mg alloy. The wheel disc 11 is formed using one or more processes selected from the group consisting of low-pressure casting, differential pressure casting, and high-pressure casting.

[0041] The closed-cavity tire features a valve 23. The closed-cavity tire is composed of two multi-piece rubber components: an inner tire 21 and an outer tire 22. These components are extruded to form a closed cavity structure. The valve 23 is located on the inner tire 21. The thickness of the outer tire 22 ranges from 5mm to 25mm, while the thickness of the inner tire 21 ranges from 2mm to 25mm. The inner tire 21 of the closed-cavity tire is tightly coupled to the strip-shaped rim 12 and wheel disc 11.

[0042] The wheel disc 11 is cast through one of low-pressure casting, differential pressure casting, and high-pressure casting, and then subjected to heat treatment and machining. The heat treatment of the wheel disc 11 is a combination of one or more of T1, T2, T3, T4, T5, and T6. The strip rim 12 is cast through one or more of low-pressure casting, differential pressure casting, and high-pressure casting.

[0043] Example 1

[0044] (1) A356 aluminum alloy liquid is subjected to low-pressure casting to prepare the wheel hub component strip rim 12, wheel disc 11, and rim top plate 13 blanks, wherein there are 12 rims with a thickness of 1.5 mm;

[0045] (2) The strip rim 12, the wheel disc 11, and the rim top disc 13 are subjected to a heat treatment process;

[0046] (3) Weld the two ends of the machined strip rim 12 to the wheel disc 11 and the rim top plate 13 respectively.

[0047] (5) The inner tire 21 and the outer tire 22 are prepared separately by an extrusion process.

[0048] (6) The inner tire 21 and the outer tire 22 are matched by spinning.

[0049] (7) Install the wheel hub into the inner tire 21.

[0050] (6) Conduct reliability test.

[0051] 1. Bending fatigue test:

[0052] The test was conducted using the test equipment specified in JISD4103, with a load of MB = 4.23 kNm, a rotation speed of 350 rpm, and a rotation number of 2 million revolutions. No cracks were observed. The test passed.

[0053] 2. Radial fatigue test:

[0054] The test device specified in JISD4103 was used. Load: F = 19.86 kN, speed: 440 rpm, revolutions: 2 million. No cracks were found. Passed the test.

[0055] 3.13° impact test:

[0056] The test apparatus specified in JISD4103 was used, with a hammer mass of 756 kg, impact positions of 0° (valve hole), 90°, 180°, and 270°. Air pressure was 200 kPa, and impact height was 230 mm. No cracks were observed. The test passed.

[0057] 4.90° impact test:

[0058] The wheel was assembled with the tire using the test apparatus specified in JISD4103. Hammer mass: 1010 kg, impact positions: 0° (valve hole), 90°, 180°, and 270°, hammer drop height: 254 mm, tire pressure: 260 kPa. After the test, no complete separation occurred. The test passed.

[0059] Example 2

[0060] (1) A356 aluminum alloy liquid is subjected to low-pressure casting to prepare the wheel hub component strip rim 12, wheel disc 11, and rim top plate 13 blanks, wherein the strip rim 12 is 8 pieces and has a thickness of 2 mm;

[0061] (2) The strip rim 12, the wheel disc 11, and the rim top disc 13 are subjected to a heat treatment process;

[0062] (3) Weld the two ends of the machined strip rim 12 to the wheel disc 11 and the rim top plate 13 respectively.

[0063] (5) The inner tire 21 and the outer tire 22 are prepared separately through an extrusion process.

[0064] (6) The inner tire 21 and the outer tire 22 are matched by spinning.

[0065] (7) Install the wheel hub into the inner tire 21.

[0066] (6) Conduct reliability test.

[0067] 1. Bending fatigue test:

[0068] The test was conducted using the test equipment specified in JISD4103, with a load of MB = 4.23 kNm, a rotation speed of 350 rpm, and a rotation number of 2 million revolutions. No cracks were observed. The test passed.

[0069] 2. Radial fatigue test:

[0070] The test device specified in JISD4103 was used. Load: F = 19.86 kN, speed: 440 rpm, revolutions: 2 million. No cracks were found. Passed the test.

[0071] 3.13° impact test:

[0072] The test apparatus specified in JISD4103 was used, with a hammer mass of 756 kg, impact positions of 0° (valve hole), 90°, 180°, and 270°. Air pressure was 200 kPa, and impact height was 230 mm. No cracks were observed. The test passed.

[0073] 4.90° impact test:

[0074] The wheel was assembled with the tire using the test apparatus specified in JISD4103. Hammer mass: 1010 kg, impact positions: 0° (valve hole), 90°, 180°, and 270°, hammer drop height: 254 mm, tire pressure: 260 kPa. After the test, no complete separation occurred. The test passed.

[0075] Example 3

[0076] (1) A356 aluminum alloy liquid is subjected to low-pressure casting to prepare the hub component wheel disc 11 and rim top plate 13 blanks, and 6063 aluminum alloy is used to prepare strip rim 12 by extrusion process, wherein the strip rim 12 is 12 and has a thickness of 1.5 mm;

[0077] (2) The strip rim 12, the wheel disc 11, and the rim top disc 13 are subjected to a heat treatment process;

[0078] (3) Weld the two ends of the machined strip rim 12 to the wheel disc 11 and the rim top plate 13 respectively.

[0079] (5) The inner tire 21 and the outer tire 22 are prepared separately through an extrusion process.

[0080] (6) The inner tire 21 and the outer tire 22 are matched by spinning.

[0081] (7) Install the wheel hub into the inner tire 21.

[0082] (6) Conduct reliability test.

[0083] 1. Bending fatigue test:

[0084] The test was conducted using the test equipment specified in JISD4103, with a load of MB = 4.23 kNm, a rotation speed of 350 rpm, and a rotation number of 2 million revolutions. No cracks were observed. The test passed.

[0085] 2. Radial fatigue test:

[0086] The test device specified in JISD4103 was used. Load: F = 19.86 kN, speed: 440 rpm, revolutions: 2 million. No cracks were found. Passed the test.

[0087] 3.13° impact test:

[0088] The test apparatus specified in JISD4103 was used, with a hammer mass of 756 kg, impact positions of 0° (valve hole), 90°, 180°, and 270°. Air pressure was 200 kPa, and impact height was 230 mm. No cracks were observed. The test passed.

[0089] 4.90° impact test:

[0090] The wheel was assembled with the tire using the test apparatus specified in JISD4103. Hammer mass: 1010 kg, impact positions: 0° (valve hole), 90°, 180°, and 270°, hammer drop height: 254 mm, tire pressure: 260 kPa. After the test, no complete separation occurred. The test passed.

[0091] Example 4

[0092] (1) A356 aluminum alloy liquid is subjected to low-pressure casting to prepare the hub component wheel disc 11 and rim top plate 13 blanks, and 6063 aluminum alloy is used to prepare strip rim 12 by extrusion process, wherein the strip rim 12 is 8 pieces and has a thickness of 2 mm;

[0093] (2) The strip rim 12, the wheel disc 11, and the rim top disc 13 are subjected to a heat treatment process;

[0094] (3) Weld the two ends of the machined strip rim 12 to the wheel disc 11 and the rim top plate 13 respectively.

[0095] (5) The inner tire 21 and the outer tire 22 are prepared separately through an extrusion process.

[0096] (6) The inner tire 21 and the outer tire 22 are matched by spinning.

[0097] (7) Install the wheel hub into the inner tire 21.

[0098] (6) Conduct reliability test.

[0099] 1. Bending fatigue test:

[0100] The test was conducted using the test equipment specified in JISD4103, with a load of MB = 4.23 kNm, a rotation speed of 350 rpm, and a rotation number of 2 million revolutions. No cracks were observed. The test passed.

[0101] 2. Radial fatigue test:

[0102] The test device specified in JISD4103 was used. Load: F = 19.86 kN, speed: 440 rpm, revolutions: 2 million. No cracks were found. Passed the test.

[0103] 3.13° impact test:

[0104] The test apparatus specified in JISD4103 was used, with a hammer mass of 756 kg, impact positions of 0° (valve hole), 90°, 180°, and 270°. Air pressure was 200 kPa, and impact height was 230 mm. No cracks were observed. The test passed.

[0105] 4.90° impact test:

[0106] The wheel was assembled with the tire using the test apparatus specified in JISD4103. Hammer mass: 1010 kg, impact positions: 0° (valve hole), 90°, 180°, and 270°, hammer drop height: 254 mm, tire pressure: 260 kPa. After the test, no complete separation occurred. The test passed.

[0107] Compared with the prior art, the multi-body wheel assembly of the present invention has the following advantages:

[0108] The present invention transfers the internal pressure of the tire to the tire with better pressure-bearing capacity by matching the wheel hub and tire design. This can reduce the overall weight of the vehicle chassis while improving the mechanical performance, and provides a direction for the pressure-bearing capacity and overall lightweight design of the vehicle.

[0109] Through the new wheel and tire design, it still has excellent mechanical properties and meets the American wheel standards SAE J175 and SAE J328-2005, namely 13-degree impact strength, 90-degree impact strength, radial impact, radial fatigue, and bending fatigue performance requirements. It also meets the national standards GB / T5334-2005 and GB / T 15704-1995 for wheel strength and fatigue.

[0110] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the protection content of the present invention.

[0111] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0112] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections, or communication; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0113] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wheel assembly comprising a hollow tire and a multi-body wheel hub, characterized in that: It includes a multi-body wheel hub and a hollow tire. The multi-body wheel hub includes multiple rims, and the two ends of the rims are fixedly connected to the wheel disc and the rim top plate; the hollow tire installed on the multi-body wheel hub includes an inner tire and an outer tire.

2. The wheel assembly of the hollow tire and the multi-body hub according to claim 1, characterized in that: The multi-piece wheel hub consists of multiple rims, wheel discs and rim top discs.

3. The wheel assembly of the hollow tire and the multi-body hub according to claim 2, characterized in that: The rim is a combined structure, including multiple strip-shaped rims. The production process includes one or more of casting, forging, and milling, and the production material includes Al alloy or Mg alloy.

4. The wheel assembly of the hollow tire and the multi-body hub according to claim 2, characterized in that: The wheel disc is a single body structure, and the production process includes one or more of casting, forging, and milling, and the production material includes Al alloy or Mg alloy.

5. The wheel assembly of hollow tire and multi-body hub according to claim 2, characterized in that: The rim top plate is a single-body structure, and the production process includes one or more of casting, forging, and milling, and the production material includes Al alloy or Mg alloy.

6. The multi-body wheel hub according to claim 2, characterized in that: The wheel disc and the rim top plate are connected by welding or bolts.

7. The wheel assembly of the hollow tire and the multi-body hub according to claim 1, characterized in that: The inner and outer tires of hollow tires are formed into a closed cavity through extrusion molding, and the production materials are one or more of rubber, steel wire, and nylon.

8. The wheel assembly of the hollow tire and the multi-body hub according to claim 7, characterized in that: A valve hole structure is provided on the inner tire.

9. The wheel assembly of the hollow tire and the multi-body hub according to claim 2, characterized in that: The number of strip rims is 2-50, the width is 1-100mm, and the thickness is 1-20mm.

10. The wheel assembly of the hollow tire and the multi-body hub according to claim 7, characterized in that: The outer tire thickness is 5-25mm, and the inner tire thickness is 2-25mm.

11. The wheel assembly of hollow tire and multi-body hub according to claim 1, characterized in that: The hollow tire is installed on the multi-body wheel hub, and after inflation, the inner tire is tightly attached to the strip rim.

12. The wheel assembly of the hollow tire and the multi-body hub according to claim 11, characterized in that: The valve nozzle is installed through the valve hole structure on the inner tire. After inflation, the gas is located inside the hollow tire and the pressure squeezes the inner tire.

13. The wheel assembly of hollow tire and multi-body hub according to claim 3, characterized in that: The rim includes a plurality of strip-shaped rims. Al alloy or Mg alloy material is smelted and then cast into a mold to form a rim blank. The blank is heat-treated and then milled to complete the manufacturing process.

14. The wheel assembly of the hollow tire and the multi-body hub according to claim 3, characterized in that: The rim includes a plurality of strip-shaped rims. Al alloy or Mg alloy material is forged into a blank, and the blank is manufactured after a milling process.

15. The wheel assembly of hollow tire and multi-body hub according to claim 4, characterized in that: The wheel disc is a single body structure. The Al alloy or Mg alloy material is smelted and then cast into a mold to form a blank. The blank is heat treated and then milled to complete the manufacturing process.

16. The wheel assembly of the hollow tire and the multi-body hub according to claim 4, characterized in that: The wheel disc is a single-body structure. Al alloy or Mg alloy material is forged into a blank, and the blank is then milled to complete the manufacturing process.

17. The wheel assembly of the hollow tire and the multi-body hub according to claim 2, characterized in that: The rim, wheel disc and rim top plate are fixed, turned and milled, pre-cleaned, dried and sprayed with paint.

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