Lightweight wear-resistant spoke

Abstract

The utility model discloses a kind of light weight wear-resistant spokes, comprising: spoke;The surface of spoke is equipped with oxide layer, the outside of oxide layer is equipped with oxide thickening layer, the outside of oxide thickening layer is equipped with scratch-proof layer, scratch-proof layer is nanometer ceramic particle layer and is coated in the surface of oxide thickening layer, and scratch-proof layer distributes regular array's hole.The utility model is thickened by thermal oxidation oxide layer of spoke surface, then paste scratch-proof layer to improve scratch-proof performance, reduce the damage of spoke surface in the process of cycling, can reduce the maintenance cost of spoke.

Description

Technical Field

[0001] This utility model belongs to the field of spoke technology, specifically, it relates to a lightweight and wear-resistant spoke. Background Technology

[0002] Spokes are mostly made of steel, which is not lightweight enough for some racing bicycles. Titanium alloy is used as spokes because it is lightweight, high-strength and corrosion-resistant. However, gravel or scratches during riding can leave scratches on the spoke surface. To improve scratch resistance, a lightweight and wear-resistant spoke has been developed. Utility Model Content

[0003] In view of this, the technical problem to be solved by this utility model is to provide a lightweight and wear-resistant spoke, which solves the problem of poor anti-scratch performance of spokes in the prior art.

[0004] To solve the above-mentioned technical problems, this utility model discloses a lightweight wear-resistant spoke, including: a spoke; the surface of the spoke is provided with an oxide layer, an oxide thickening layer is provided on the outside of the oxide layer, and an anti-scratch layer is provided on the outside of the oxide thickening layer. The anti-scratch layer is a nano-ceramic particle layer covering the surface of the oxide thickening layer, and the anti-scratch layer has regularly distributed arrays of pores.

[0005] Furthermore, the thickness of the aforementioned oxidized thickened layer is 3–10 μm.

[0006] Furthermore, the aforementioned nano-ceramic particle layer is adhered to the polyester film by an adhesive, and the polyester film is attached to the surface of the oxidized thickened layer.

[0007] Furthermore, the spokes mentioned above are made of titanium alloy.

[0008] Furthermore, the holes on the aforementioned anti-scratch layer are elongated and extend spirally on the anti-scratch layer.

[0009] Compared with the prior art, this application can achieve the following technical effects:

[0010] This invention thickens the oxide layer on the spoke surface through thermal oxidation, and then applies an anti-scratch layer to improve anti-scratch performance, reducing damage to the spoke surface during riding and thus reducing spoke maintenance costs.

[0011] Of course, any product implementing this application does not necessarily need to achieve all of the technical effects described above at the same time. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0013] Figure 1 This is a cross-sectional schematic diagram of the spokes according to one embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram of the surface of the spokes according to one embodiment of the present invention.

[0015] Attached Figure Labels

[0016] Spoke 1, Oxide layer 2, Oxide thickening layer 3, Scratch-resistant layer 4, Hole 5. Detailed Implementation

[0017] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0018] Please refer to Figure 1 and Figure 2 , Figure 1 This is a cross-sectional schematic diagram of the spokes according to one embodiment of the present invention; Figure 2 This is a schematic diagram of the surface of the spokes according to one embodiment of the present invention.

[0019] A lightweight wear-resistant spoke includes: a spoke 1; the surface of the spoke 1 is provided with an oxide layer 2, an oxide thickening layer 3 is provided on the outside of the oxide layer 2, an anti-scratch layer 4 is provided on the outside of the oxide thickening layer 3, the anti-scratch layer 4 is a layer of nano-ceramic particles covering the surface of the oxide thickening layer 3, and the anti-scratch layer 4 has regularly distributed arrays of holes 5.

[0020] Thermal oxidation method (high-temperature oxidation)

[0021] Principle: In an air or oxygen atmosphere, the surface of the titanium alloy reacts chemically with oxygen by heating at high temperature, generating a titanium dioxide oxide layer with controllable thickness. The high temperature accelerates the diffusion rate of titanium atoms and oxygen atoms, thereby thickening the oxide layer.

[0022] Process parameters

[0023] Temperature range: typically 400–650℃ (core parameter).

[0024] Low temperature (<400℃): slow oxidation rate, limited effect on oxide layer thickening (only tens of nanometers).

[0025] Excessive temperature (>650℃): may cause grain growth in the titanium alloy matrix, reduce mechanical properties (such as strength and toughness), and the oxide layer is prone to cracking and falling off due to excessive internal stress.

[0026] Insulation time: Adjusted according to the target thickness, generally 1-4 hours. For example:

[0027] After holding at 500℃ for 2 hours, the oxide layer thickness can reach 1-3 μm;

[0028] By holding the material at 600℃ for 3 hours, the thickness can be increased to 5-10 μm.

[0029] The thickness of the oxidized thickened layer 3 was controlled between 3 and 10 μm using the thermal oxidation method.

[0030] The nano-ceramic particle layer is adhered to the polyester film by an adhesive, and the polyester film is attached to the surface of the oxidized thickened layer.

[0031] Spoke 1 is made of titanium alloy, which has a density of approximately 4.5 g / cm³, only about 60% of that of steel (approximately 7.8 g / cm³). Under the same strength requirements, titanium alloy spokes are 30%–40% lighter than traditional steel spokes, significantly reducing wheel inertia. Titanium alloy has extremely high tensile strength (some grades can reach over 1000 MPa), and the load-bearing capacity of a single titanium alloy spoke can easily meet the needs of daily riding and high-intensity sports (such as mountain biking and high-speed cruising on road bikes). Titanium forms a dense oxide film (titanium dioxide) in the air, preventing further corrosion. Therefore, titanium alloy spokes are far more resistant to harsh environments such as rain, sweat, salt, and mud than steel spokes (steel spokes rely on a coating for rust prevention, which is prone to rusting after wear). Even with long-term use in humid or high-salt environments, they are less prone to rust and breakage, resulting in a longer service life.

[0032] The holes 5 on the anti-scratch layer 4 are elongated and spirally extend on the anti-scratch layer 4. The design of the holes 5 can improve the visibility of the spoke 1 surface and facilitate the observation of the surface condition of the oxide thickening layer 3, so as to maintain the spokes in a timely manner.

[0033] This invention thickens the oxide layer on the surface of the spoke 1 through thermal oxidation, and then applies an anti-scratch layer 4 to improve the anti-scratch performance, thereby reducing damage to the surface of the spoke 1 during riding and reducing the maintenance cost of the spoke 1.

[0034] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A lightweight, wear-resistant spoke, comprising: Spokes; The spokes are characterized in that an oxide layer is provided on the surface of the spokes, an oxide thickening layer is provided on the outside of the oxide layer, and an anti-scratch layer is provided on the outside of the oxide thickening layer. The anti-scratch layer is a layer of nano-ceramic particles covering the surface of the oxide thickening layer, and the anti-scratch layer has regularly distributed arrays of pores.

2. The lightweight wear-resistant spoke as described in claim 1, characterized in that, The thickness of the oxide thickening layer is 3–10 μm.

3. The lightweight wear-resistant spoke as described in claim 2, characterized in that, The nano-ceramic particle layer is adhered to the polyester film by an adhesive, and the polyester film is attached to the surface of the oxidized thickened layer.

4. The lightweight wear-resistant spoke as described in claim 3, characterized in that, The spokes are made of titanium alloy.

5. The lightweight wear-resistant spoke as described in claim 4, characterized in that, The holes on the scratch-resistant layer are elongated and extend spirally along the layer.

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