WHEEL AND RIM WITH WEIGHT REDUCTION INNER FLANGE

Abstract

A wheel and a rim with a weight reduction inner flange are provided. The rim includes an inner flange, a middle portion and an outer flange which are all annular and connected end to end to form an annular rim, in which the inner flange or the outer flange includes multiple groups of edge weight reduction sockets arranged side by side on one side of the inner cavity of a hub, and multiple groups of inner weight reduction sockets arranged side by side are provided inside the edge weight reduction sockets on the rim; a group of edge weight reduction sockets includes a first edge weight reduction socket and a second edge weight reduction socket at the edge of the inner flange or the outer flange, and the first edge weight reduction socket is in the shape of a right-angled triangle having round angles.

Claims

1. A rim with a weight reduction inner flange, the rim being made of an aluminum alloy and comprising an inner flange, a middle portion and an outer flange which are all annular and connected end to end to form an annular rim, wherein the inner flange or the outer flange comprises multiple groups of edge weight reduction sockets arranged side by side on one side of the inner cavity of a hub, and multiple groups of inner weight reduction sockets arranged side by side are provided inside the edge weight reduction sockets on the rim; a group of edge weight reduction sockets comprises a first edge weight reduction socket and a second edge weight reduction socket at the edge of the inner flange or the outer flange, and the first edge weight reduction socket is in the shape of a right-angled triangle having round angles; the second edge weight reduction socket is in the shape of a right-angled triangle having round angles; the right angle of the first edge weight reduction socket is close to the edge of the inner flange or the outer flange, and the right-angle side is parallel to the edge of the inner flange or the outer flange; one right-angle side of the second edge weight reduction socket is parallel to the inner flange or the outer flange; the hypotenuse of the first edge weight reduction socket is opposite to that of the second edge weight reduction socket, and the hypotenuses surround to form an intra-group reinforcing rib; between two groups of edge weight reduction sockets, the first edge weight reduction sockets are back to back and surround to form an inter-group reinforcing rib; and the inner weight reduction sockets are in the shape of rounded trapezoids.

2. The rim with a weight reduction inner flange according to claim 1, wherein the rim with a weight reduction inner flange is a rim suitable for wheels of 14-22 inches.

3. The rim with a weight reduction inner flange according to claim 1, wherein the length of the right-angle side of the first edge weight reduction socket is 8-15 mm.

4. The rim with a weight reduction inner flange according to claim 1, wherein the distance between the right-angle sides of the first edge weight reduction sockets of two groups of edge weight reduction sockets is 8-15 mm.

5. The rim with a weight reduction inner flange according to claim 1, wherein the length of the right-angle side of the second edge weight reduction socket is 8-15 mm.

6. The rim with a weight reduction inner flange according to claim 1, wherein the inner weight reduction sockets have a length of 2-50 mm and a depth of 0.5-0.7 mm along the direction vertical to a wheel disc.

7. The rim with a weight reduction inner flange according to claim 1, wherein the inner weight reduction sockets have a draft angle of 7-15.

8. The rim with a weight reduction inner flange according to claim 1, wherein the edge weight reduction sockets have a depth of 0.5-7 mm.

9. A wheel, comprising a rim with a weight reduction inner flange, the rim being made of an aluminum alloy and comprising an inner flange, a middle portion and an outer flange which are all annular and connected end to end to form an annular rim, wherein the inner flange or the outer flange comprises multiple groups of edge weight reduction sockets arranged side by side on one side of the inner cavity of a hub, and multiple groups of inner weight reduction sockets arranged side by side are provided inside the edge weight reduction sockets on the rim; a group of edge weight reduction sockets comprises a first edge weight reduction socket and a second edge weight reduction socket at the edge of the inner flange or the outer flange, and the first edge weight reduction socket is in the shape of a right-angled triangle having round angles; the second edge weight reduction socket is in the shape of a right-angled triangle having round angles; the right angle of the first edge weight reduction socket is close to the edge of the inner flange or the outer flange, and the right-angle side is parallel to the edge of the inner flange or the outer flange; one right-angle side of the second edge weight reduction socket is parallel to the inner flange or the outer flange; the hypotenuse of the first edge weight reduction socket is opposite to that of the second edge weight reduction socket, and the hypotenuses surround to form an intra-group reinforcing rib; between two groups of edge weight reduction sockets, the first edge weight reduction sockets are back to back and surround to form an inter-group reinforcing rib; and the inner weight reduction sockets are in the shape of rounded trapezoids.

10. The wheel according to claim 9, wherein the rim with a weight reduction inner flange is a rim suitable for wheels of 14-22 inches.

11. The wheel according to claim 9, wherein the length of the right-angle side of the first edge weight reduction socket is 8-15 mm.

12. The wheel according to claim 9, wherein the distance between the right-angle sides of the first edge weight reduction sockets of two groups of edge weight reduction sockets is 8-15 mm.

13. The wheel according to claim 9, wherein the length of the right-angle side of the second edge weight reduction socket is 8-15 mm.

14. The wheel according to claim 9, wherein the inner weight reduction sockets have a length of 2-50 mm and a depth of 0.5-0.7 mm along the direction vertical to a wheel disc.

15. The wheel according to claim 9, wherein the inner weight reduction sockets have a draft angle of 7-15.

16. The wheel according to claim 9, wherein the edge weight reduction sockets have a depth of 0.5-7 mm.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0019] The embodiments of the present disclosure will be described in detail below in combination with the accompanying drawings, in which:

[0020] FIG. 1 is a schematic diagram of a front structure of a hub according to first embodiment of the present disclosure;

[0021] FIG. 2 is a top view of an inner flange weight reduction socket unit of the hub according to first embodiment of the present disclosure;

[0022] FIG. 3 is a front view of the inner flange weight reduction socket unit of the hub according to first embodiment of the present disclosure;

[0023] FIG. 4 is a schematic diagram of an inner flange weight reduction socket array of the hub according to first embodiment of the present disclosure;

[0024] FIG. 5 is a three-dimensional structure diagram of the hub according to first embodiment of the present disclosure.

LIST OF REFERENCE SYMBOLS

[0025] 11rim, 12flange plate, 13spoke, 21triangular inner flange weight reduction socket, 22reinforcing rib.

DETAILED DESCRIPTION

First Embodiment

[0026] Provided in this embodiment is a motor vehicle aluminum alloy hub with an inner flange having weight reduction sockets. The hub includes a wheel disc and a rim, and the wheel disc includes a flange plate, a flange plate periphery portion and spokes. The inner flange of the hub includes weight reduction sockets, and the inner flange weight reduction socket units are as shown in FIGS. 2 and 3, and form a structure of similar M reinforcing ribs.

[0027] In this embodiment, each length data is expressed as follows:

[0028] The length of the right-angle side of the first edge weight reduction socket parallel to the flange: A

[0029] The distance between the right-angle sides of the first edge weight reduction sockets of two groups of edge weight reduction sockets: B

[0030] The length of the right-angle side of the first edge weight reduction socket vertical to the flange: C

[0031] The length of the right-angle side of the second edge weight reduction socket vertical to the flange: D

[0032] The length of the right-angle side of the second edge weight reduction socket parallel to the flange: E The length of the inner weight reduction socket along the direction vertical to the wheel disc: F

[0033] For the side lengths of the weight reduction socket units, A is 15 mm, C is 13 mm, D is 12 mm, E is 14 mm, and F is 28 mm, and the weight reduction sockets have a depth of 4 mm, back fillets R2, a rib width B of 5 mm, and a draft angle of 7. By test, the weight of the hub is 11.29 kg in the absence of weight reduction sockets and is reduced by 0.3 kg in the presence of weight reduction sockets, and the weight reduction effect is about 2.7%.

Second Embodiment

[0034] This embodiment differs from first embodiment in that: for the side lengths of the weight reduction socket units, A is 8 mm, C is 8 mm, D is 8 mm, E is 8 mm, and F is 18 mm, and the weight reduction sockets have a depth of 5 mm, back fillets R2, a rib width B of 5 mm, and a draft angle of 15. By test, the weight of the hub is 11.29 kg in the absence of weight reduction sockets and is reduced by 0.43 kg in the presence of weight reduction sockets, and the weight reduction effect is about 3.8%.

First Comparative Example

[0035] This comparative Example differs from first embodiment in that the rim is uniformly thinned until the weight of the entire hub is reduced by 0.3 kg. For uniform thinning, the rim is thinned by 0.28 mm.

Second Comparative Example

[0036] This comparative Example differs from second embodiment in that the rim is uniformly thinned until the weight of the entire hub is reduced by 0.43 kg. For uniform thinning, the rim is thinned by 0.30 mm.

Third Comparative Example

[0037] This comparative Example differs from first embodiment in that only the edge weight reduction sockets are retained, while the inner weight reduction sockets are removed. Correspondingly, the depth of the edge weight reduction sockets is changed from 4 mm to 6 mm By test, the weight of the hub is 11.29 kg in the absence of weight reduction sockets and is reduced by 0.18 kg in the presence of weight reduction sockets, and the weight reduction effect is about 2.7%.

Third Embodiment

[0038] Various properties of the motor vehicle hubs according to first and second embodiments, as well as first and second comparative Examples were tested. The strengths and fatigues, including 13-degree impact strength, 90-degree impact strength, radial impact, radial fatigue, bending fatigue and the like, of the above wheel were tested in the test center of Dicastal. The test passability is shown in Table 1.

[0039] American Wheel Standards of SAE J175 and SAE J328-2005 provide the requirements for 13-degree impact strength, radial fatigue and bending fatigue of the present disclosure. GB/T 5334-2005 and GB/T 15704-1995 respectively provide the test standards for wheel strength and fatigue performance requirements.

TABLE-US-00001 TABLE 1 Wheel performance tests of first and second embodiments and first and second comparative Examples first second third first second comparative comparative comparative embodiment embodiment Example Example Example 13-degree Y Y Y Y Y impact test 90-degree Y Y N N N impact test Radial Y Y N N N impact test Radial Y Y Y N N fatigue Bending Y Y Y Y Y fatigue Note: in the table, Y indicates passing the test, and N indicates failing in the test.

[0040] It can be seen from Table 1 that the wheels can pass all tests by adopting first and second embodiments under the same weight reduction pressure when the weight reduction socket design is adopted at the flange. However, various tests failed by uniformly thinning the rim. This shows that the weight reduction design on the rim requires special customization.

[0041] It can be seen from third comparative Example that various tests also fail under the same weight reduction pressure when only the edge weight reduction sockets are retained. Hence, when the edge weight reduction sockets and the inner weight reduction sockets are simultaneously designed, a better weight reduction effect is achieved, and the basic strength of the hub is not affected.

[0042] Therefore, the hubs of first and second embodiments met American Wheel Standards of SAE J175 and SAE J328-2005, namely met the performance requirements for 13-degree impact strength, radial fatigue and bending fatigue, and can also meet the requirements of GB/T 5334-2005 and GB/T 15704-1995 for wheel strengths and fatigues. However, first and second comparative Examples did not fully meet the above requirements.