Novel nodular cast iron wheel hub

Abstract

The utility model relates to a novel nodular cast iron wheel hub belongs to automobile wheel hub technical field, including the wheel rim, the wheel rim outside has a plurality of wheel spokes along the radial uniform distribution, the wheel rim inboard is connected with the support ring, is used for supporting the wheel rim inboard, avoids the stress concentration of wheel spoke and wheel rim junction, the wheel rim inner ring has a plurality of support rib plate, is used for further sharing the stress of wheel spoke and wheel rim junction, increases the strength of whole wheel hub, the novel nodular cast iron wheel hub in the utility model, sets up the support ring in the wheel rim inboard, and sets up the support rib plate in the wheel rim inner ring, shares the stress of wheel spoke and wheel rim junction through the support ring and support rib plate, avoids the stress concentration of junction, thereby increases the strength of whole wheel hub, prolongs the service life of wheel hub.

Description

Technical Field

[0001] This utility model relates to a novel ductile iron wheel hub, belonging to the field of automotive wheel hub technology. Background Technology

[0002] Ductile iron wheels are made of ductile iron material, possessing numerous advantages such as high strength, good toughness, good wear resistance, and corrosion resistance. Ductile iron wheels mainly consist of a rim, spokes, and a center disc. The spokes are the supporting structure connecting the center disc and the rim, bearing the radial and axial loads during vehicle operation and transmitting the forces and moments between the center disc and the rim. Currently, most ductile iron wheel spokes are connected to the outer side of the rim, while the inner side of the rim remains suspended without other supporting structures. This leads to stress concentration at the connection between the spokes and the rim, making them prone to breakage at this connection point during prolonged driving or in traffic accidents, thus affecting the overall lifespan of the wheel. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a new type of ductile iron wheel hub, which has a support structure on the inner side of the rim to avoid stress concentration at the connection between the spokes and the rim and extend the service life of the wheel hub.

[0004] The novel ductile iron wheel hub of this utility model includes a rim, with a plurality of spokes evenly distributed radially on the outer side of the rim, and a support ring connected to the inner side of the rim for supporting the inner side of the rim and avoiding stress concentration at the connection between the spokes and the rim; a plurality of support ribs are evenly distributed on the inner ring of the rim for further distributing the stress at the connection between the spokes and the rim and increasing the strength of the entire wheel hub.

[0005] The technical solution of this utility model is to provide a novel ductile iron wheel hub. By setting a support ring on the inner side of the wheel rim and setting a support rib on the inner ring of the wheel rim, the support ring and the support rib share the stress at the connection between the spokes and the wheel rim, avoid stress concentration, increase the strength of the entire wheel hub, and thus extend the service life of the wheel hub.

[0006] Preferably, the position of the supporting rib plate corresponds one-to-one with the position of the wheel spokes, the inner side of the supporting rib plate is welded to the supporting ring, the outer side of the supporting rib plate is welded to the wheel spokes, and the top of the supporting rib plate is welded to the inner ring of the wheel rim.

[0007] Preferably, the support ring has a clearance groove to allow the brake caliper to pass, which facilitates installation; the two ends of the clearance groove are provided with transition fillets at the junction with the inner hole of the support ring to avoid stress concentration.

[0008] Preferably, a center plate is provided at the center of the outer side of the wheel rim, and the center plate is connected to the wheel rim through the spokes; the center plate has a through hole at its center, and a number of countersunk holes are evenly distributed around the through hole. The countersunk holes are used to install bolts and connect to the axle.

[0009] The advantages of this utility model compared with the prior art are:

[0010] The novel ductile iron wheel hub of this utility model has a support ring on the inner side of the rim and a support rib on the inner ring of the rim. The support ring and the support rib share the stress at the connection between the spokes and the rim, avoiding stress concentration at the connection, thereby increasing the strength of the entire wheel hub and extending its service life. Attached Figure Description

[0011] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0012] Figure 2 This is the second structural schematic diagram of this utility model;

[0013] Figure 3 This is a cross-sectional view of the present invention.

[0014] In the diagram: 1. Rim; 2. Spoke; 3. Center disc; 31. Countersunk hole; 32. Through hole; 4. Support rib; 5. Support ring; 51. Transition fillet; 52. Clearance groove. Detailed Implementation

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

[0016] However, the description of this utility model is only a structural or even functional description of the embodiments, and the scope of the present utility model is not limited by the embodiments described herein.

[0017] For example, multiple embodiments may have various modifications and forms, and it should be understood that the scope of this utility model includes equivalents that can realize the technical concept.

[0018] like Figures 1-3 As shown, this embodiment is achieved through the following technical solution: it includes a rim 1, with a plurality of spokes 2 evenly distributed radially on the outer side of the rim 1, and a support ring 5 connected to the inner side of the rim 1 to support the inner side of the rim 1 and avoid stress concentration at the connection between the spokes 2 and the rim 1; a plurality of support ribs 4 are evenly distributed on the inner ring of the rim 1 to further distribute the stress at the connection between the spokes 2 and the rim 1 and increase the strength of the entire hub.

[0019] In this embodiment, the position of the support rib plate 4 corresponds one-to-one with the position of the wheel spoke 2. The inner side of the support rib plate 4 is welded to the support ring 5, the outer side of the support rib plate 4 is welded to the wheel spoke 2, and the top of the support rib plate 4 is welded to the inner ring of the wheel rim 1.

[0020] The support ring 5 is provided with a clearance groove 52 to avoid the brake caliper and facilitate installation; the two ends of the clearance groove 52 are provided with transition fillets 51 at the junction with the inner hole of the support ring 5 to avoid stress concentration.

[0021] The outer center of the rim 1 is provided with a center plate 3, which is connected to the rim 1 through the spokes 2; the center of the center plate 3 is provided with a through hole 32, which is used to connect with the outer sleeve of the hub; a number of countersunk holes 31 are evenly distributed around the through hole 32, which are used to install bolts and connect with the axle.

[0022] The installation method of this utility model is as follows:

[0023] 1. Install the tire onto rim 1;

[0024] 2. Align the clearance groove 52 with the position of the brake caliper, snap the wheel hub onto the axle, and fix the wheel hub to the axle with bolts.

[0025] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.

Claims

1. A novel ductile iron wheel hub, characterized in that, It includes a rim (1), with a number of spokes (2) evenly distributed radially on the outer side of the rim (1), and a support ring (5) connected to the inner side of the rim (1); a number of support ribs (4) are evenly distributed on the inner ring of the rim (1), and the positions of the support ribs (4) correspond one-to-one with the positions of the spokes (2).

2. The novel ductile iron wheel hub according to claim 1, characterized in that, The inner side of the support rib plate (4) is welded to the support ring (5), the outer side of the support rib plate (4) is welded to the wheel spoke (2), and the top of the support rib plate (4) is welded to the inner ring of the wheel rim (1).

3. The novel ductile iron wheel hub according to claim 2, characterized in that, The support ring (5) is provided with a relief groove (52), and the two ends of the relief groove (52) are provided with transition fillets (51) at the junction with the inner hole of the support ring (5).

4. The novel ductile iron wheel hub according to claim 2, characterized in that, The outer center of the rim (1) is provided with a central disk (3), which is connected to the rim (1) through the spokes (2).

5. The novel ductile iron wheel hub according to claim 4, characterized in that, The center of the central disk (3) is provided with a through hole (32), and a number of countersunk holes (31) for installing bolts are evenly distributed around the through hole (32).

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