阅读说明：本技术 可调节内径配合尺寸的高强度轮辋及其车轮 (High-strength rim with adjustable inner diameter fit size and wheel thereof ) 是由 彭峻 杨荣 王科见 胡飞 余海洋 潘小雨 王峰 孙福成 于 2020-11-28 设计创作，主要内容包括：本发明公开了一种可调节内径配合尺寸的高强度轮辋及其车轮,包括轴向外轮辋和轴向内轮辋,所述轴向外轮辋和轴向内轮辋之间通过轮辋基部相连接,所述轴向内轮辋包括胎圈圆弧,所述胎圈圆弧的末端连接有胎圈斜边,所述胎圈斜边沿着所述轮辋基部的方向连接有轮辋配合直边,在所述胎圈斜边与轮辋配合直边之间通过尺寸过渡圆弧进行过渡连接。本发明所述的可调节内径配合尺寸的高强度轮辋,通过在胎圈斜边与轮辋配合直边之间通过尺寸过渡圆弧进行过渡连接,这样可以实现即使不同料厚的轮辋,轮辋配合内径均保持一致,从而使得轮辐的通用性更强,大大降低了企业轮辐的生产成本,保证了在车轮轻量化过程中,不会因轮辐外径不同而产生不适用的情况。(The invention discloses a high-strength rim with adjustable inner diameter matching size and a wheel thereof, and the high-strength rim comprises an axial outer rim and an axial inner rim, wherein the axial outer rim and the axial inner rim are connected through a rim base, the axial inner rim comprises a tire bead circular arc, the tail end of the tire bead circular arc is connected with a tire bead inclined edge, the tire bead inclined edge is connected with a rim matching straight edge along the direction of the rim base, and the tire bead inclined edge and the rim matching straight edge are in transition connection through a size transition circular arc. According to the high-strength rim with the adjustable inner diameter matching size, the tire bead bevel edge and the rim matching straight edge are in transitional connection through the size transition circular arc, so that the matching inner diameters of the rims are kept consistent even if the rims with different material thicknesses are used, the universality of the spoke is higher, the production cost of the spoke of an enterprise is greatly reduced, and the condition that the spoke is inapplicable due to different outer diameters of the spoke in the light weight process of the wheel is avoided.)

1. The utility model provides a high strength rim of adjustable internal diameter fit size, includes wheel rim (2) in axial outer rim (1) and the axial, be connected its characterized in that through rim base (3) between wheel rim (2) in axial outer rim (1) and the axial: the axial inner rim (2) comprises a bead arc (2.1), the tail end of the bead arc (2.1) is connected with a bead bevel edge (2.2), the bead bevel edge (2.2) is connected with a rim matching straight edge (2.3) along the direction of the rim base (3), and the bead bevel edge (2.2) and the rim matching straight edge (2.3) are in transition connection through a size transition arc (2.4).

2. The adjustable inside diameter cooperatively dimensioned high strength rim of claim 1, wherein: the size transition circular arc (2.4) comprises a first size transition circular arc (2.41) and a second size transition circular arc (2.42); the first size transition arc (2.41) is connected with a bead bevel edge (2.2), and the second size transition arc (2.42) is connected with the rim matching straight edge (2.3).

3. The adjustable inside diameter cooperatively dimensioned high strength rim of claim 2, wherein: the first size transition arc (2.41) is an inner transition arc, and the second size transition arc (2.42) is an outer transition arc.

4. The adjustable inside diameter cooperatively dimensioned high strength rim according to claim 2 or 3, characterized in that: the first size transition circular arc (2.41) has a radius range of R4-R8, and the second size transition circular arc (2.42) has a radius range of R8-R12.

5. The adjustable inside diameter cooperatively dimensioned high strength rim of claim 1, wherein: the axial outer rim (1), the axial inner rim (2) and the rim base (3) are in an integrated connection structure.

6. A wheel comprising a spoke (4) and further comprising a high-strength rim with an adjustable inside diameter fitting dimension as claimed in any one of claims 1 to 4, wherein the spoke (4) is press-fitted and welded to the inside diameter of the rim fitting straight edge (2.3).

Technical Field

The invention belongs to the technical field of design and manufacture of wheel rims, and particularly relates to a high-strength wheel rim with adjustable inner diameter fit size and a wheel thereof.

Background

The wheel consists of a rim and a spoke, the opening end of the spoke and the inner side of the surface, provided with the spoke, of the rim are assembled according to a certain excessive win amount, and then the rim and the spoke are integrated into a whole in a welding mode. The inner diameter dimension of the rim where it engages the spokes affects the outer diameter dimension of the spokes.

In the design standard GB/T31961-2015 of the rim, taking a 15 ° drop center rim profile (see fig. 1) as an example, in the design of a conventional rim product, in order to ensure that the nominal diameter of the rim profile and the bead seat angle meet the standard requirements, the rim outer contour line is usually used as a standard to perform offset design according to the thickness of the rim, so that the rim fitting inner diameters of rims with different thicknesses are different (see fig. 2).

Under the background of light weight of automobiles, the improvement of the strength of raw materials and the reduction of the thickness of the materials are important means for strengthening wheels. According to the design concept of the wheel rim (the design method shown in fig. 2), the wheel rims with different material thicknesses can form the wheel spokes with different matched inner diameters, so that the wheel spokes are not strong in universality and bring inconvenience to production and manufacturing. Meanwhile, in order to ensure the universality of the spoke to rims with different thicknesses, the calibration diameter and the angle of the bead seat are ensured during the design of the rim, and the matching inner diameters of the rims with different thicknesses are required to be kept consistent (see fig. 3). For the rim profile that designs different material thickness with rim cooperation internal diameter, rim cooperation department straight flange can reduce along with the attenuate of material thickness, and the reduction of cooperation straight flange can make the synthetic welding seam of spoke rim reduce from rim well top fillet distance, increases the influence of welding seam heat affected zone to the well top fillet, influences the fatigue life of wheel.

Disclosure of Invention

The invention solves the technical problem of providing a high-strength rim with adjustable inner diameter matching size, which can ensure that the matching inner diameters of rims with different material thicknesses are consistent under the condition of ensuring that the matching straight edges of the rims are not reduced.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

the high-strength rim with the adjustable inner diameter matching size comprises an axial outer rim and an axial inner rim, wherein the axial outer rim and the axial inner rim are connected through a rim base, the axial inner rim comprises a tire bead circular arc, the tail end of the tire bead circular arc is connected with a tire bead inclined edge, the tire bead inclined edge is connected with a rim matching straight edge along the direction of the rim base, and the tire bead inclined edge and the rim matching straight edge are in transition connection through a size transition circular arc.

Preferably, the size transition circular arcs include a first size transition circular arc and a second size transition circular arc; the first size transition arc is connected with the inclined edge of the tire bead, and the second size transition arc is connected with the matching straight edge of the wheel rim.

Preferably, in the embodiment of the present invention, the first size transition arc is an inner transition arc, and the second size transition arc is an outer transition arc.

Preferably, in the embodiment of the present invention, the radius of the first size transition circular arc is in the range of R4-R8, and the radius of the second size transition circular arc is in the range of R8-R12.

Preferably, in an embodiment of the present invention, the axially outer rim, the axially inner rim and the rim base are an integral connecting structure.

A wheel comprises a spoke and a high-strength rim with an adjustable inner diameter matching size, wherein the spoke is pressed and welded to the inner diameter of the matching straight edge of the rim.

Compared with the related art, the high-strength rim with the adjustable inner diameter fit size has the following beneficial effects:

1. according to the high-strength rim with the adjustable inner diameter matching size, the tire bead bevel edge and the rim matching straight edge are in transitional connection through the size transition circular arc, so that the matching inner diameters of the rims are kept consistent even if the rims with different material thicknesses are used, the universality of the spokes is higher, the production cost of the spokes of an enterprise is greatly reduced, and the condition that the spokes are inapplicable due to different outer diameters in the light weight process of the wheel is avoided.

2. According to the high-strength rim with the adjustable inner diameter matching size, the arc transition is carried out through the first size transition arc and the second size transition arc, so that the length of the matching straight edge of the rim cannot be changed due to different thicknesses of rim materials, and the phenomenon that the fatigue life of a wheel is shortened due to the reduction of the matching straight edge of the rim is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic profile view of a 15 drop center rim of the background of the invention;

FIG. 2 is a schematic diagram of a rim profile with different material thicknesses according to the prior art;

FIG. 3 is a schematic diagram of a profile of a rim with different thicknesses designed according to the inner diameter of the rim;

FIG. 4 is a schematic view of the profile structure of the rim of the present invention;

FIG. 5 is an enlarged view of the size transition arc of the present invention;

fig. 6 is a schematic view of the overall structure of the composite weld of the wheel.

Reference numbers in the figures: 1. an axial outer rim; 2. an axially inner rim; 2.1, tire bead arc; 2.2, a bead bevel edge; 2.3, matching the rim with a straight edge; 2.4, size transition circular arc; 2.41, a first size transition arc; 2.42, a second size transition arc; 3. a rim base; 4. a spoke.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Before describing the technical solution of the present invention, we first describe the present invention in detail with reference to fig. 1 to 3 to help understanding the technical solution of the present invention, and fig. 4 to 6 are specific technical solutions of the present invention.

Fig. 1 is a schematic profile view of a 15 ° drop center rim, in which a nominal diameter Φ D and a nominal width a are customized in a rim standard, and a bead seat length P and a fitting straight edge depth h are only limited in a minimum value in the rim standard, so that a rim section can be adjusted for the fitting straight edge depth, and thus a fitting inner diameter Φ D of the rim can be different due to the difference in the section of the rim caused by the thickness of the rim.

Referring to fig. 2, in a conventional rim product design, a rim outer contour line is generally used as a standard to be designed according to the thickness of a rim material, and the design mode of using the rim outer contour line as a standard to be designed according to the thickness of the rim material causes that the rim fitting inner diameters Φ d of rims with different thicknesses are different. In the design method of carrying out deviation according to the thickness of a rim material by taking the rim outer contour line as a standard, the length of a rim matching straight edge cannot be changed due to different thicknesses of the rim material, but the thickness of the rim material is H2> H1, so that the corresponding rim matching inner diameter phi d2< phi d 1. Therefore, the wheel rims with different material thicknesses can form the wheel spokes with different matched inner diameters, so that the wheel spokes are not strong in universality and bring much inconvenience to production and manufacturing.

Fig. 3 is a schematic diagram of a rim profile for designing different thicknesses with a rim fitting inner diameter, in the design method, we can see that the rim fitting inner diameters Φ d of different thicknesses are the same, but when the rim material thickness H1 is less than H2, the corresponding rim straight edge length L1 is less than L2, and when the rim straight edge is reduced, the distance between the resultant weld joint and the top fillet of the rim groove is reduced, so that the influence of the heat-affected zone of the weld joint on the top fillet of the groove is increased, and the fatigue life of the wheel is affected.

Referring to fig. 4 to 5, the embodiment of the invention provides a high-strength rim with adjustable inner diameter fit size, and specifically comprises an axial outer rim 1 and an axial inner rim 2, wherein the axial outer rim 1 and the axial inner rim 2 are connected through a rim base 3, and the axial outer rim 1 and the axial inner rim 2 are circumferentially joined through the rim base 3 to form an annular rim with a base (in the embodiment, the axial outer rim 1, the axial inner rim 2 and the rim base 3 are of an integral structure). In this embodiment, the following improvements are made in the design method of designing rims with different thicknesses according to the rim fit inner diameter: specifically, the inner rim 2 in the axial direction specifically comprises a bead circular arc 2.1, the tail end of the bead circular arc 2.1 is connected with a bead bevel edge 2.2, the bead bevel edge 2.2 is connected with a rim matching straight edge 2.3 along the direction of a rim base 3, and the bead bevel edge 2.2 and the rim matching straight edge 2.3 are in transition connection through a size transition circular arc 2.4. In this embodiment, through set up size transition circular arc 2.4 between tire bead hypotenuse 2.2 and rim cooperation straight flange 2.3, when the material thickness attenuate, compensate through the size of transition circular arc 2.4 and make rim cooperation department straight flange 2.3 can not reduce along with the attenuate of material thickness, just so can not make the synthetic welding seam of spoke rim reduce from rim well top fillet distance for the influence of welding seam heat affected zone to the well top fillet disappears.

Referring to the detailed description shown in fig. 4, when the material thickness of the rim is not reduced, the length of the rim matching straight edge 2.3 is L2, when the length of the rim matching straight edge 2.3 is changed to L1 along with the reduction of the material thickness of the rim, when the transition arc 2.4 is not arranged, it is obvious that L1 is less than L2, and the reduction of the matching straight edge (namely, the reduction of L1) can reduce the distance of the composite welding seam of the spoke rim from the fillet at the top of the rim groove, increase the influence of a welding seam heat-affected zone on the fillet at the top of the groove, and influence the fatigue life of the wheel; when the size transition arc 2.4 is arranged between the bead bevel 2.2 and the rim mating straight edge 2.3, the size transition arc 2.4 is in transition connection with the rim mating straight edge 2.3. In this way, when the length of the rim fitting straight edge 2.3 becomes the sum of the transition distance S between the rim fitting straight edge L1 and the size transition circular arc 2.4 along with the reduction of the thickness of the rim material, so that L1+ S is equal to L2, and the length of the rim fitting straight edge 2.3 cannot be reduced along with the reduction of the thickness of the rim material through the size compensation of the transition circular arc 2.4.

With reference to fig. 5, further optimizing the present embodiment, the size transition arc 2.4 comprises a first size transition arc 2.41 and a second size transition arc 2.42, wherein the first size transition arc 2.41 is connected to the bead angular edge 2.2 and the second size transition arc 2.42 is connected to the rim engagement straight edge 2.3. Like this, carry out transitional coupling through first size transition circular arc 2.41 and tire bead hypotenuse 2.2, carry out transitional coupling through second size transition circular arc 2.42 and rim cooperation straight flange 2.3 for the transition of size transition circular arc 2.4 is more natural, can make the length of rim cooperation straight flange 2.3 obtain more stable assurance simultaneously. Further optimizing the embodiment, the first size transition arc 2.41 is set as an inner transition arc, and the second size transition arc 2.42 is set as an outer transition arc; wherein the radius range of the first size transition circular arc 2.41 is R4-R8, and the radius range of the second size transition circular arc 2.42 is R8-R12.

Referring to fig. 6, the embodiment of the invention further provides a wheel, which comprises spokes 4 and a high-strength rim with adjustable inner diameter matching size, wherein the spokes 4 are pressed and welded on the inner diameter of the rim matching straight edge 2.3, and the wheel is ensured to have good adaptability and universality through the structural design.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.