Rear aluminum rim

Abstract

The utility model discloses a rear aluminum rim, which relates to the technical field of rims, and comprises a rim, the rim comprises a rim, first reinforcing ribs and a fixing sleeve, the rim, the first reinforcing ribs and the fixing sleeve are of an integrated structure, the fixing sleeve is located on the inner side of the rim and is coaxially arranged, the first reinforcing ribs are arranged in multiple groups, and the first reinforcing ribs are arranged in multiple groups. The fixing sleeves are fixedly arranged between the fixing sleeves and the wheel flange in a surrounding mode at equal intervals, the steel sleeves are coaxially and fixedly arranged in the fixing sleeves, and the additional steel discs are arranged on the inner side of the wheel flange. During use, before the rim is produced, the 45 # steel sleeve can be placed in the corresponding position in the middle of the die and then aluminum casting is carried out, after production is completed, the 45 # steel sleeve is firmly combined with the fixing sleeve, and due to the fact that the 45 # steel sleeve has good hardness and stability, the safety and the abrasion resistance of the rear aluminum rim can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel rims, in particular to a rear aluminum wheel rim. Background Art

[0002] The rim is the core component of the wheel. It directly contacts the inner ring of the tire, supporting the tire and bearing the weight of the vehicle. The rim is typically a ring-shaped structure with a certain width and thickness to ensure the tire is stably mounted on the wheel. The rim, in conjunction with the tire, creates an airtight fit with the inner ring, ensuring stable air pressure within the tire, enabling safe and smooth vehicle travel.

[0003] Aluminum casting is a common manufacturing method for wheel rims. The process involves pouring molten aluminum alloy into a designed mold, where it cools and solidifies to form the initial shape of the rim. Key steps in this process include mold design, melting the aluminum alloy, pouring, shelling, and cleaning. After shelling, heat treatment is required to enhance performance. After inspection and painting, the finished wheel rim is finally produced. Throughout this process, strict control of process parameters is crucial to ensure the quality and performance of the wheel rim.

[0004] The disadvantages of the above-mentioned existing technical solutions are that the hardness and wear resistance of aluminum are relatively low. Long-term use or frequent disassembly and assembly may cause wear and even deformation of the connection between the rim and the axle, thereby affecting the tightness and stability of the connection. Utility Model Content

[0005] The purpose of the utility model is to provide a rear aluminum rim to solve the technical problem in the prior art that the hardness and wear resistance of aluminum are relatively low, and long-term use or frequent disassembly and assembly may cause wear and even deformation of the connection between the rim and the axle, thereby affecting the tightness and stability of the connection.

[0006] The technical problem to be solved by the present invention can be achieved through the following technical solutions:

[0007] A rear aluminum wheel rim includes a wheel rim, wherein the wheel rim includes a rim, a first reinforcing rib, and a fixing sleeve. The rim, the first reinforcing rib, and the fixing sleeve are an integrated structure. The fixing sleeve is located on the inner side of the wheel rim and is coaxially arranged. The first reinforcing ribs are provided in multiple groups and are equidistantly and fixedly arranged between the fixing sleeve and the wheel rim. The device also includes a steel sleeve and an external steel disc. The steel sleeve is coaxially fixedly arranged inside the fixing sleeve, and the external steel disc is arranged on the inner side of the wheel rim.

[0008] As a further solution of the present invention: the steel sleeve is a 45# steel sleeve.

[0009] As a further solution of the present invention: the external steel plate includes a pressure steel ring, a second reinforcing rib, a mounting tube and a connecting assembly. The pressure steel ring is pressed around the inner side of the wheel rim, and the mounting tube is sleeved on the outer side of the fixed sleeve. There are multiple groups of second reinforcing ribs, and the multiple groups of second reinforcing ribs are equidistantly fixed around and between the mounting tube and the pressure steel ring. The connecting assembly is cooperated and arranged on the mounting tube and the fixed sleeve.

[0010] As a further solution of the present invention: an arcuate surface is provided on the inner side of the wheel rim, and an arcuate slope matching the arcuate surface is provided on the outer side of the pressing steel ring.

[0011] As a further solution of the present invention: the connecting assembly includes a fixing bolt bolted to the mounting tube, the fixing bolt is arranged to pass through the mounting tube, and the fixing sleeve is provided with a bolt hole matched with the fixing bolt.

[0012] As a further solution of the present invention: the first reinforcing rib and the second reinforcing rib have the same structural shape.

[0013] Beneficial effects of the utility model:

[0014] 1. When using the utility model, before the rim is produced, a 45# steel sleeve can be placed in the corresponding position in the middle of the mold and then aluminum casting can be carried out. After the production is completed, the 45# steel sleeve is firmly combined with the fixed sleeve. Since the 45# steel sleeve has good hardness and stability, the safety and wear resistance of the rear aluminum rim can be improved.

[0015] 2. When the present invention is in use and the support strength of the rim needs to be increased, the additional steel disc can be fixed to the inner side of the rim by fixing bolts. At this time, the mounting tube is fixedly sleeved on the fixing sleeve to achieve positioning, and the second reinforcing ribs provide support. The pressing steel ring presses against the rim, thereby supporting the rim and increasing the support strength. The curved slope provided on the outer side of the pressing steel ring facilitates pressing against the curved surface on the inner side of the rim, and by applying an oblique force to the rim, the rim is supported, thereby increasing the support strength of the rim. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the additional steel plate of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the utility model after the additional steel disc and the rim are matched;

[0020] Figure 4 It is a schematic diagram of the longitudinal section structure of the utility model after the additional steel disc and the rim are matched.

[0021] In the figure: 1. rim; 101. wheel flange; 102. first reinforcing rib; 103. fixing sleeve; 104. bolt hole; 2. steel sleeve; 3. additional steel plate; 301. pressure steel ring; 302. second reinforcing rib; 303. mounting tube; 304. fixing bolt. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figures 1-4 As shown, a rear aluminum wheel rim includes a rim 1, which includes a flange 101, a first reinforcing rib 102, and a fixing sleeve 103. The flange 101, the first reinforcing rib 102, and the fixing sleeve 103 form an integrated structure. The fixing sleeve 103 is coaxially arranged inside the flange 101. Multiple groups of first reinforcing ribs 102 are equidistantly and fixedly arranged between the fixing sleeve 103 and the flange 101. During the processing of the rim 1, molten aluminum is directly injected into the mold for manufacturing the rim 1 to achieve molding of the rim 1.

[0024] The device also includes a steel sleeve 2 and an additional steel disc 3. The steel sleeve 2 is coaxially fixed within the fixed sleeve 103. The steel sleeve 2 is a 45# steel sleeve 2, which generally refers to a sleeve made of 45# steel. 45# steel is a high-quality carbon structural steel with a carbon content between 0.42% and 0.50%. It also contains appropriate amounts of silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), chromium (Cr), and nickel (Ni). Strict control of these elements ensures stable and reliable steel performance. Before the rim 1 is produced, the 45# steel sleeve 2 can be placed in the middle of the mold and then aluminum can be cast. This ensures a firm bond between the solidified rim 1 and the 45# steel sleeve 2, thereby improving the safety and wear resistance of the rear aluminum rim 1.

[0025] The additional steel plate 3 is disposed inside the rim 101 and includes a pressing steel ring 301, second reinforcing ribs 302, a mounting tube 303, and a connecting assembly. The pressing steel ring 301 surrounds and presses against the inside of the rim 101, the mounting tube 303 is sleeved onto the outside of the fixing sleeve 103, multiple groups of second reinforcing ribs 302 are provided, and the multiple groups of second reinforcing ribs 302 are equidistantly and fixedly disposed around and between the mounting tube 303 and the pressing steel ring 301. The connecting assembly is cooperatively disposed on the mounting tube 303 and the fixing sleeve 103. The connecting assembly includes a fixing bolt 304 bolted to the fixing sleeve 303. The fixing bolt 304 extends through the fixing sleeve 303, and the fixing sleeve 103 is provided with a bolt hole 104 that cooperates with the fixing bolt 304. When the support strength of the rim 1 needs to be improved, the additional steel plate 3 can be fixed to the inner side of the rim 1 by the fixing bolts 304. At this time, the mounting tube 303 is fixedly sleeved on the fixing sleeve 103 to achieve positioning, and is supported by the second reinforcing ribs 302. The rim 101 is pressed by the pressing steel ring 301, thereby supporting the rim 101 and improving the support strength.

[0026] The inner side of the rim 101 is provided with a curved surface, and the outer side of the pressing steel ring 301 is provided with a curved slope that matches the curved surface. The first reinforcing rib 102 and the second reinforcing rib 302 have the same structure and shape. The curved slope provided on the outer side of the pressing steel ring 301 facilitates pressing against the curved surface on the inner side of the rim 101, exerting an oblique force on the rim 101, thereby supporting the rim 101 and improving its support strength.

[0027] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of the embodiments of this solution will now be described in conjunction with specific application scenarios:

[0028] Before the rim 1 is produced, a 45# steel sleeve 2 can be placed in the corresponding position in the middle of the mold and then aluminum casting can be performed. After the production is completed, the 45# steel sleeve 2 is firmly combined with the fixed sleeve 103. Since the 45# steel sleeve 2 has good hardness and stability, the safety and wear resistance of the rear aluminum rim 1 can be improved.

[0029] When the motorcycle is running, the rim 1 needs to bear the weight of the motorcycle body, suspension system and tires, as well as the impact and vibration caused by uneven road surface. If necessary, the user can install an additional steel plate 3 on one side of the rim 1 to improve the bearing capacity of the rim 1;

[0030] When the support strength of the rim 1 needs to be increased, the additional steel plate 3 can be fixed to the inner side of the rim 1 using the fixing bolts 304. At this time, the mounting tube 303 is fixedly sleeved on the fixing sleeve 103 to achieve positioning, and the second reinforcing ribs 302 provide support. The pressing steel ring 301 presses against the rim 101, thereby supporting the rim 101 and improving the support strength. The curved slope provided on the outer side of the pressing steel ring 301 facilitates pressing against the curved surface on the inner side of the rim 101, and by applying an oblique force to the rim 101, the rim 101 is supported, thereby improving the support strength of the rim 101.

[0031] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A rear aluminum wheel rim, comprising a wheel rim (1), wherein the wheel rim (1) comprises a rim (101), a first reinforcing rib (102), and a fixing sleeve (103), wherein the wheel rim (101), the first reinforcing rib (102), and the fixing sleeve (103) are an integrated structure, wherein the fixing sleeve (103) is located inside the wheel rim (101) and is coaxially arranged, wherein the first reinforcing rib (102) is provided in a plurality of groups and is equidistantly and fixedly arranged between the fixing sleeve (103) and the wheel rim (101 ...) is , also includes: A steel sleeve (2) and an external steel disc (3), wherein the steel sleeve (2) is coaxially fixedly arranged inside the fixed sleeve (103), and the external steel disc (3) is arranged on the inner side of the wheel rim (101).

2. A rear aluminum rim according to claim 1, characterized in that: The steel sleeve (2) is a 45# steel sleeve (2).

3. The rear aluminum rim according to claim 1, characterized in that: The external steel disc (3) comprises a pressing steel ring (301), a second reinforcing rib (302), a mounting tube (303) and a connecting assembly. The pressing steel ring (301) surrounds and presses against the inner side of the wheel rim (101). The mounting tube (303) is sleeved on the outer side of the fixing sleeve (103). The second reinforcing rib (302) is provided in multiple groups. The multiple groups of the second reinforcing ribs (302) are equidistantly and fixedly arranged between the mounting tube (303) and the pressing steel ring (301). The connecting assembly is cooperatively arranged on the mounting tube (303) and the fixing sleeve (103).

4. The rear aluminum rim according to claim 3, characterized in that: The inner side of the wheel rim (101) is provided with an arc-shaped surface, and the outer side of the pressing steel ring (301) is provided with an arc-shaped slope surface matching the arc-shaped surface.

5. The rear aluminum rim according to claim 3, characterized in that: The connection assembly includes a fixing bolt (304) bolted to the installation tube (303), the fixing bolt (304) is arranged through the installation tube (303), and the fixing sleeve (103) is provided with a bolt hole (104) matched with the fixing bolt (304).

6. The rear aluminum rim according to claim 1, characterized in that: The first reinforcing rib (102) and the second reinforcing rib (302) have the same structural shape.

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