Wheel rim and steel rolling material for same

Abstract

The utility model provides a wheel rim and material rolled steel thereof, one side of the section of the material rolled steel comprises a fixed wheel flange, the other side of the section of the material rolled steel comprises a wheel flange mounting groove, and the wheel flange mounting groove is used for detachably clamping a detachable wheel flange; the steel rolled by the material further comprises a forming plane for forming the tire deep-removing groove by steel rolling; a first tire bead part is arranged between the forming plane and the fixed rim, a second tire bead part is arranged between the forming plane and the rim mounting groove, the first tire bead part is upwards and outwards inclined relative to the forming plane, and the second tire bead part is upwards and outwards inclined relative to the forming plane; the height range of the fixed rim is 12 mm to 25 mm, the included angle between the first tire bead part and the forming plane is 10 degrees to 20 degrees, and the included angle between the second tire bead part and the forming plane is 10 degrees to 20 degrees. The thickness of the rolled steel is different. By means of the technical scheme, the rolled steel suitable for the wheel rim formed through rolled steel can be provided.

Description

Technical Field

[0001] This utility model relates to a wheel rim and the rolled steel used for it. Background Technology

[0002] As a crucial load-bearing component of modern vehicles, the structural design and manufacturing process of tubeless vacuum wheel rims directly impact the wheel's sealing performance, lightweight design, and reliability. A typical tubeless vacuum wheel rim consists of two parts: the rim body and a detachable flange. The rim body usually employs a ring-shaped metal structure, with one side designed as a fixed flange, connected to the rim body through integral molding or welding to form a stable support boundary; the other side features a mounting groove where the detachable flange is installed. The detachable flange is detachably assembled to the mounting groove using bolts, clips, or locking rings. This split design facilitates tire installation and removal, while also improving the convenience of rim maintenance and replacement. This structure ensures airtightness while adapting to load requirements under various operating conditions, making it particularly suitable for construction machinery and heavy vehicles.

[0003] Currently, the mainstream manufacturing process for wheel rims is roll forming technology using whole-roll metal sheets. This process involves continuously feeding metal sheets of uniform thickness into a roll forming machine, gradually bending them into the desired rim cross-sectional shape through multiple roll forming steps. However, this method has significant limitations: because the sheet thickness is uniform, it is impossible to differentiate the design based on the stress characteristics of different areas of the rim, resulting in low material utilization and difficulty in optimizing structural performance. Secondly, the uniform thickness design may cause localized stress concentration, especially in the connection area between the detachable rim flange and the mounting groove, which can easily lead to fatigue cracks or deformation after long-term use, affecting the rim's lifespan. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a wheel rim and the rolled steel material used therein.

[0005] To solve the above-mentioned technical problems, this utility model provides a rolled steel material for wheel rims. One side of the cross-section of the rolled steel material includes a fixed rim, and the other side includes a rim mounting groove for detachably engaging a detachable rim. The rolled steel material also includes a forming plane for forming a tire detent groove. A first bead portion is included between the forming plane and the fixed rim, and a second bead portion is included between the forming plane and the rim mounting groove. The first bead portion is upward and outward inclined relative to the forming plane, and the second bead portion is also upward and outward inclined relative to the forming plane. The height of the fixed rim ranges from 12mm to 25mm, the angle between the first bead portion and the forming plane is 10° to 20°, the angle between the second bead portion and the forming plane is 10° to 20°, and the thickness of the rolled steel material is not uniform.

[0006] In a preferred embodiment, a flat portion is further provided between the fixed rim and the first bead portion;

[0007] The thickness of the flat portion is 7mm to 10mm, the thickness of the rim mounting groove is 11mm to 14mm, the thickness of the first bead portion is 6mm to 9mm, the thickness of the second bead portion is 7mm to 10mm, and the thickness of the shaped surface is 6mm to 9mm.

[0008] In a preferred embodiment, the rim mounting groove is hook-shaped, and the bent portion of the rim mounting groove is disposed away from the second bead seat.

[0009] This utility model also provides a wheel rim formed by rolling steel, wherein the wheel rim is formed by rolling steel using the material; the forming plane is concave to form the tire splitting groove.

[0010] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0011] A type of rolled steel for wheel rims includes a fixed rim on one side of its cross-section and a rim mounting groove on the other side for detachably engaging a detachable rim. The rolled steel also includes a forming plane for forming tire removal grooves. A first bead portion is located between the forming plane and the fixed rim, and a second bead portion is located between the forming plane and the rim mounting groove. The first bead portion is upward and outward inclined relative to the forming plane, and the second bead portion is also upward and outward inclined relative to the forming plane. The fixed rim has a height ranging from 12mm to 25mm, and the angle between the first bead portion and the forming plane is 10° to 20°, as is the angle between the second bead portion and the forming plane. The rolled steel has an uneven thickness. Using this rolled steel, the uneven thickness provides better stress distribution. After the wheel is rolled, tire removal grooves are machined in the middle, facilitating tire mounting. In the fixed flange section, the height of the fixed flange is higher than that of flanges in the prior art to prevent the tire from coming off. Based on the structure of the flange mounting groove, a detachable flange is used to hold the flange mounting groove in place. This detachable flange can be opened and clamped in the flange mounting groove, making tire mounting on the wheel easier. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the rolled steel used for a wheel rim in a preferred embodiment of the present invention;

[0013] Figure 2 This is a cross-sectional view of the wheel rim in a preferred embodiment of the present invention;

[0014] Figure 3 for Figure 2 A magnified view of a portion of the image. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0016] See Figure 1 A type of rolled steel for wheel rims, wherein one side of the cross-section of the rolled steel includes a fixed rim 1, and the other side of the cross-section includes a rim mounting groove 2 for detachably engaging a detachable rim; the rolled steel also includes a forming plane 3 for forming a tire groove; a first bead portion 4 is included between the forming plane 3 and the fixed rim 1, and a second bead portion 5 is included between the forming plane 3 and the rim mounting groove 2, wherein the first bead portion 4 is inclined upward and outward relative to the forming plane 3, and the second bead portion 5 is inclined upward and outward relative to the forming plane 3; wherein the height h of the fixed rim 1 ranges from 12mm to 25mm, the included angle α between the first bead portion 4 and the forming plane 3 is from 10° to 20°, the included angle β between the second bead portion 5 and the forming plane 3 is from 10° to 20°, and the thickness of the rolled steel is unequal. Using rolled steel of varying thickness, stress analysis reveals better stress distribution. After the steel is rolled and coiled, a tire removal groove is machined in the middle of the wheel for easier tire mounting. In the fixed rim section 1, the height of the fixed rim 1 is higher than that of existing rims to prevent tire detachment. Based on the structure of the rim mounting groove 2, a detachable rim is used to hold the rim mounting groove 2. This detachable rim can be opened and clamped in the rim mounting groove 2, making tire mounting on the wheel easier.

[0017] A flat section 6 is also provided between the fixed rim 1 and the first bead portion 4. The uneven thickness of the rolled steel mainly strengthens the weak points of the product, such as the flat section 6 and the rim mounting groove 2, which are both thickened. Meanwhile, the areas with sufficient stress are optimized, such as the forming plane 3, the angle α between the first bead portion 4 and the forming plane 3, and the angle β between the second bead portion 5 and the forming plane 3, which are appropriately thinned. Specifically, the thickness of the flat section 6 is 7mm to 10mm, the thickness of the rim mounting groove 2 is 11mm to 14mm, the thickness of the first bead portion 4 is 6mm to 9mm, the thickness of the second bead portion 5 is 7mm to 10mm, and the thickness of the forming plane 3 is 6mm to 9mm.

[0018] In this embodiment, the rim mounting groove 2 is hook-shaped, and the bent portion of the rim mounting groove 2 is located away from the second bead seat.

[0019] See Figure 2 and Figure 3 The steel material is rolled into a wheel rim 100 after being rolled into shape, and the tire groove 3a is formed on the forming plane.

[0020] The above description is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model by those skilled in the art within the scope of the technology disclosed in the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A type of rolled steel for wheel rims, characterized in that, One side of the cross-section of the rolled steel material includes a fixed rim, and the other side of the cross-section includes a rim mounting groove for detachably engaging a detachable rim. The rolled steel material also includes a forming plane for forming tire grooves. A first bead portion is included between the forming plane and the fixed rim, and a second bead portion is included between the forming plane and the rim mounting groove. The first bead portion is inclined upward and outward relative to the forming plane, and the second bead portion is also inclined upward and outward relative to the forming plane. The height of the fixed rim ranges from 12mm to 25mm, the angle between the first bead portion and the forming plane is from 10° to 20°, and the angle between the second bead portion and the forming plane is from 10° to 20°. The thickness of the rolled steel material is not uniform.

2. The rolled steel used for a wheel rim as described in claim 1, characterized in that: A flat portion is also provided between the fixed rim and the first bead portion; The thickness of the flat portion is 7mm to 10mm, the thickness of the rim mounting groove is 11mm to 14mm, the thickness of the first bead portion is 6mm to 9mm, the thickness of the second bead portion is 7mm to 10mm, and the thickness of the shaped surface is 6mm to 9mm.

3. The rolled steel used for a wheel rim as described in claim 1, characterized in that: The rim mounting groove is hook-shaped, and the bent portion of the rim mounting groove is located away from the second bead seat.

4. A wheel rim formed by rolling steel, characterized in that, The wheel rim is formed by rolling steel using the material for a wheel rim as described in any one of claims 1-3; the forming plane is concave to form the tire detent groove.

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