Double-layer steel hub

Abstract

The utility model discloses a double-layer steel wheel hub, which belongs to the technical field of double-layer wheel hubs and comprises an outer wheel rim, an inner wheel rim and an outer wheel hub, the inner rim is coaxially sleeved on the inner side of the outer rim; the spoke is fixedly mounted on the inner rim; wherein the inner rim is of a spliced structure, a positioning assembly is arranged between the inner rim and the outer rim, the inner rim is formed by combining and splicing the two side rings and the center ring, and the positioning assembly is also arranged between the inner rim and the outer rim, so that splicing of the inner rim can be assisted, and assembly is facilitated for workers.

Description

Technical Field

[0001] This utility model relates to the field of double-layer wheel hub technology, specifically to a double-layer steel wheel hub. Background Technology

[0002] To address the technical problems of existing steel wheel hubs, such as heavy weight, low strength, and insufficient heat dissipation, Chinese patent document CN221892909U discloses a combined double-layer steel wheel hub. This hub solves these problems by setting an outer rim ring and an inner rim ring. However, the maximum outer diameter of the inner rim ring is larger than the minimum inner diameter of the outer rim ring, causing dimensional interference between the inner and outer rim rings during assembly and increasing the difficulty of assembly. To solve these problems, this utility model provides a double-layer steel wheel hub. Utility Model Content

[0003] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide a double-layer steel wheel hub, wherein the inner rim is composed of two side rings and a central ring, and a positioning component is also provided between the inner and outer rims to assist in the splicing of the inner rim and facilitate assembly by workers.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a double-layer steel wheel hub, comprising:

[0005] The outer rim, wherein the outer circumference of the outer rim is provided with a bead seat and a rim flange;

[0006] Inner rim, which is coaxially sleeved on the inner side of the outer rim;

[0007] Wheel spokes, which are fixedly mounted on the inner rim;

[0008] The inner rim is a spliced ​​structure, and a positioning component is provided between the inner rim and the outer rim.

[0009] Preferably, the inner rim comprises:

[0010] A central ring is coaxially sleeved on the inner side of the outer rim, and the center line of the central ring section coincides with the center line of the outer rim section.

[0011] Two side rings are located on both sides of the central ring, with one side of the side ring welded to the outer rim and the other side welded to the central ring.

[0012] The spokes are connected to the corresponding side rings.

[0013] Preferably, the positioning component includes:

[0014] Two fixing rings are provided. One fixing ring is fixedly connected to the inner ring surface of the outer rim, and the other fixing ring is fixedly connected to the outer ring surface of the center ring. The two fixing rings are symmetrical along the center line of the cross section of the center ring, and a snap-fit ​​part is provided between the two fixing rings.

[0015] Preferably, the snap-fit ​​portion includes:

[0016] Multiple locking rods are fixedly connected to each of the two fixing rings on opposite sides;

[0017] Multiple through holes are provided on both of the fixing rings;

[0018] The locking rod is engaged with the corresponding through hole.

[0019] Preferably, the end of the lever away from the fixed ring it is connected to is folded outward to form a boss, and this boss is interference-fitted with the corresponding through hole.

[0020] Preferably, the lever is capable of elastic deformation and has a clearance opening.

[0021] Preferably, a positioning ring is fixedly connected to each of the two side rings facing each other, and the positioning ring is inserted into the clearance port on the corresponding lever.

[0022] Preferably, multiple support rings are fixedly connected to both the inner and outer ring surfaces of the positioning ring.

[0023] Preferably, the end face of the lever away from the fixed ring it is dome-shaped, and the end of the through hole near the center line of the central ring cross-section is an outwardly flared trumpet shape.

[0024] Preferably, the two side rings that are close to each other are folded towards the outer rim and pressed against the inner ring surface of the outer rim.

[0025] The beneficial effects of this utility model are as follows:

[0026] This invention features an inner rim with a spliced ​​structure, consisting of a central ring and two side rings. During assembly, the central ring is installed first, followed by the two side rings. This avoids dimensional interference during assembly, making it easier for workers to assemble the rim.

[0027] This invention, through the arrangement of two fixing rings, two positioning rings, and multiple support rings, assists in positioning during the assembly of the inner rim, thereby further reducing the difficulty of assembly. It also provides stable support for the space between the inner and outer rims, improving the overall strength of the steel wheel hub.

[0028] This invention achieves the positioning of the two fixing rings through the setting of the clamping rod and the through hole, which can prevent radial displacement between the center ring and the outer rim during assembly, thereby reducing the difficulty of assembly and making it easier for workers to assemble. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of a double-layer steel wheel hub provided for an embodiment of the present utility model.

[0031] Figure 2 This utility model Figure 1 Exploded view.

[0032] Figure 3 This utility model Figure 1 A sectional view.

[0033] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0034] Figure 5 This utility model Figure 2 Exploded view.

[0035] Figure 6 This is an exploded view of the two fixing rings of this utility model.

[0036] Figure 7 This utility model Figure 6 Enlarged view of point B.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Outer rim, 2. Spokes, 3. Center ring, 4. Side ring, 5. Fixing ring, 6. Clamping rod, 7. Through hole, 8. Clearance opening, 9. Positioning ring, 10. Support ring. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] This utility model provides a double-layer steel wheel hub, such as Figures 1 to 7 As shown.

[0041] Example 1:

[0042] A double-layer steel wheel hub includes an outer rim 1, with a bead seat and a flange on the outer ring surface of the outer rim 1. An inner rim is coaxially sleeved on the inner side of the outer rim 1. The inner rim has a spliced ​​structure, and a positioning component is provided between the inner rim and the outer rim 1. The positioning component can play a positioning role when installing the inner rim, making it convenient for workers to assemble the inner rim. A spoke 2 is installed on one side of the inner rim.

[0043] The inner rim includes a central ring 3 and two side rings 4. The central ring 3 is coaxially fitted inside the outer rim 1, and the center line of the cross-section of the central ring 3 coincides with the center line of the cross-section of the outer rim 1 (e.g., ...). Figure 3 and Figure 4 As shown), the center ring 3 has side rings 4 on both sides. The spokes 2 and the side rings 4 are connected to each other. The two side rings 4 are folded towards the outer rim 1 on the side that is close to each other and press against the inner ring surface of the outer rim 1, which can increase the overall strength of the spokes 2, side rings 4 and outer rim 1.

[0044] During assembly, the center ring 3 is connected to the outer rim 1 via the positioning assembly. Then, the two side rings 4 are installed in sequence and welded to the center ring 3 and the outer rim 1 respectively. Finally, the spokes 2 are welded to the corresponding side rings 4.

[0045] Example 2:

[0046] The positioning assembly includes two retaining rings 5. One retaining ring 5 is fixedly mounted on the inner ring surface of the outer rim 1, and the other retaining ring 5 is fixedly mounted on the outer ring surface of the center ring 3. The two retaining rings 5 ​​are symmetrical about the center line of the cross section of the center ring 3 (e.g., Figure 3 and Figure 4 As shown in the figure, when installing the center ring 3, make the two fixing rings 5 ​​close to the center line of the cross section of the center ring 3 fit together, which means that the center line of the cross section of the center ring 3 is aligned with the center line of the cross section of the outer rim 1. At this time, the installation of the center ring 3 can be completed.

[0047] Example 3:

[0048] Based on Embodiment 2, to facilitate installation by workers, a snap-fit ​​part is provided between the two fixing rings 5. The snap-fit ​​part includes:

[0049] Multiple locking rods 6 and multiple through holes 7 are fixedly connected to the opposite side of the two fixing rings 5. Multiple through holes 7 are provided on the two fixing rings 5. When the two fixing rings 5 ​​are in contact with each other, the locking rods 6 will engage with the corresponding through holes 7, so that the two fixing rings 5 ​​can be kept relatively fixed, which facilitates the installation by the staff. The multiple locking rods 6 and multiple through holes 7 on the two fixing rings 5 ​​are distributed alternately.

[0050] The end of the locking rod 6 away from the fixed ring 5 it is connected to is folded outward to form a boss. This boss is interference-fitted with the corresponding through hole 7. The locking rod 6 is made of elastic metal material, which can produce elastic deformation. A clearance opening 8 is provided on the locking rod 6, so that the locking rod 6 can pass through the interior of the corresponding through hole 7 with less effort and engage with it.

[0051] To facilitate the insertion of the locking rod 6 into the corresponding through hole 7 during assembly, the end face of the locking rod 6 away from the fixed ring 5 it is connected to is made into a dome, and the end of the through hole 7 near the center line of the cross section of the central ring 3 is made into an outwardly flared shape, which allows the locking rod 6 to be better inserted into the corresponding through hole 7.

[0052] To facilitate the installation of the side rings 4, positioning rings 9 are provided on the facing sides of the two side rings 4. The positioning rings 9 are inserted into the clearance openings 8 on the corresponding clamps 6. This ensures that the side rings 4 are coaxially installed with the outer rim 1 and the center ring 3 during installation. In addition, multiple support rings 10 are fixedly connected to the inner and outer ring surfaces of the positioning rings 9. The support rings 10 and the two fixing rings 5 ​​cooperate with each other to improve the overall strength of this utility model.

[0053] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A two-layer steel wheel hub, characterized in that, The utility model relates to a wheel rim structure, which comprises: an outer rim (1) having an outer ring surface provided with a bead seat and a rim; an inner rim coaxially sleeved on the inner side of the outer rim (1); a spoke (2) fixedly installed on the inner rim; wherein the inner rim is of a spliced structure, and a positioning assembly is arranged between the inner rim and the outer rim (1).

2. A two-layer steel wheel hub as in claim 1, wherein, The inner rim comprises: a center ring (3) coaxially sleeved on the inner side of the outer rim (1), and the center line of the section of the center ring (3) coincides with the center line of the section of the outer rim (1); two side rings (4) located on the two sides of the center ring (3), and one side of each side ring (4) is welded to the outer rim (1) and the other side is welded to the center ring (3); wherein the spoke (2) is connected to the corresponding side ring (4).

3. A two-layer steel wheel hub as in claim 2 wherein, The positioning assembly comprises: two fixed rings (5), one of which is fixedly connected to the inner ring surface of the outer rim (1) and the other of which is fixedly connected to the outer ring surface of the center ring (3), and the two fixed rings (5) are symmetrical along the center line of the section of the center ring (3), and a clamping portion is arranged between the two fixed rings (5).

4. A two-layer steel wheel hub as defined in claim 3 wherein, The clamping portion comprises: a plurality of clamping rods (6) fixedly connected to the side surface of each fixed ring (5) facing each other; a plurality of through holes (7) arranged on each fixed ring (5); wherein the clamping rod (6) and the corresponding through hole (7) are clamped to each other.

5. A two-layer steel wheel hub as defined in claim 4 wherein, The end of the clamping rod (6) away from the fixed ring (5) connected thereto is outwardly folded to form a boss, and the boss is in interference fit with the corresponding through hole (7).

6. A two-layer steel wheel hub as defined in claim 5 wherein, The clamping rod (6) can be elastically deformed, and a clearance (8) is arranged on the clamping rod (6).

7. A two-layer steel wheel hub as defined in claim 6 wherein, A positioning ring (9) is fixedly connected to the side surface of each side ring (4) facing each other, and the positioning ring (9) is inserted into the clearance (8) on the corresponding clamping rod (6).

8. A two-layer steel wheel hub as defined in claim 7 wherein, A plurality of support rings (10) are fixedly connected to the inner and outer ring surfaces of the positioning ring (9).

9. A two-layer steel wheel hub as defined in claim 4 wherein, The end surface of the clamping rod (6) away from the fixed ring (5) connected thereto is a dome, and the end of the through hole (7) close to the center line of the section of the center ring (3) is a flared horn shape.

10. A two-layer steel wheel hub as defined in claim 2 wherein, The side of each side ring (4) close to each other is outwardly folded to the direction of the outer rim (1) and abuts against the inner ring surface of the outer rim (1).

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