CN214001195U

CN214001195U - Wheel hub structure of double-piece type tailor-welded spoke

Info

Publication number: CN214001195U
Application number: CN202021995405.0U
Authority: CN
Inventors: 胡淼; 葛磊; 李欣; 袁顺; 赵继松
Original assignee: Shanghai Lingyun Industrial Technology Co ltd; Shanghai Lingyun Industrial Technology Co ltd Lingyun Automobile Technology Branch
Current assignee: Shanghai Lingyun Industrial Technology Co ltd; Shanghai Lingyun Industrial Technology Co ltd Lingyun Automobile Technology Branch
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-08-20
Anticipated expiration: 2030-09-14

Abstract

The utility model relates to a hub structure of a double-piece type tailor-welded spoke, which comprises a rim, a spoke and a spoke reinforcing piece; the rim is connected with the spoke in a welding mode; the spoke reinforcing pieces are connected with the spokes in a welding mode; the welding mode comprises arc welding or laser welding; the rim is rolled into a cylindrical structure by a sheet plate through a rolling mill; the lap joints of the cylindrical structures are connected through a laser welding process; lightening holes are distributed on the spoke, and the lightening holes are of a centrosymmetric structure distributed along the center hole of the spoke; and a flanging structure is arranged at the position around the lightening hole of the spoke. The utility model provides a wheel hub structure of a double-piece type tailor-welded wheel spoke, which is a split type tailor-welded steel wheel hub structure, wherein the wheel spoke part adopts a two-piece type structure, and is connected with a wheel spoke reinforcing sheet and a wheel spoke through a welding process, and the split type structure is beneficial to the weight reduction and the structure optimization of a product; and a flanging structure is arranged around the spoke lightening hole, so that the structural strength of the spoke is enhanced.

Description

Wheel hub structure of double-piece type tailor-welded spoke

Technical Field

The utility model relates to a passenger car safety part especially is used for the small-size passenger car wheel hub of well low-grade, the utility model relates to a wheel hub structure of double-disc formula tailor-welded spoke.

Background

The automobile wheel is an important part of automobile transmission and is also an outer decoration piece. The design of the wheel is safe, light and beautiful, and meets the aesthetic requirements of consumers. The performance design also requires "three high and one low", namely: high accuracy, high fatigue, high load-bearing capacity and low weight. In the aspect of material selection, the safety of the material is ensured, and meanwhile, the material also has aesthetic property. The selection of wheel materials is closely related to requirements of wheel structures, manufacturing processes, performance requirements and the like, and is a key factor for determining the performance of wheels.

At present, the automobile wheels all over the world, whether truck wheels or passenger car wheels, are basically divided into two materials, namely steel materials and aluminum alloy materials, and the wheels made of the two materials account for 95 percent of the market share. In addition, with the development of light weight of automobiles, the requirements of people on the quality of wheels are continuously increased, and some novel materials are also used for manufacturing automobile wheels, such as magnesium alloy, plastics and composite materials.

In order to solve the problem, the utility model discloses it is proposed to this end.

Disclosure of Invention

An object of the utility model is to provide a wheel hub structure of two-piece type tailor-welded spoke, this wheel hub structure is strengthened the piece by rim, spoke and is constituteed.

The purpose of the utility model can be realized through the following technical scheme:

a hub structure of a double-piece type tailor-welded spoke comprises a rim, a spoke and a spoke reinforcing piece; the rim is connected with the spoke in a welding mode; the spoke reinforcing sheet and the spoke are connected in a welding mode.

Preferably, the welding mode comprises arc welding or laser welding.

Preferably, the rim is rolled into a cylindrical structure by a rolling mill from a sheet plate; the lap joint of the cylindrical structure is connected through a laser welding process.

Furthermore, lightening holes are distributed on the spoke, and the lightening holes are of a central symmetrical structure distributed along the central hole of the spoke.

Furthermore, a flanging structure is arranged at the position around the lightening hole of the spoke.

Furthermore, bolt holes are uniformly distributed in the center of the spoke.

Preferably, the rim is connected with the spoke in a welding mode or a laser welding mode, and a flanging with the height of 5-8mm is arranged on the outer ring of the spoke.

Preferably, the tensile strength of the selected material of the wheel rim is 420MPa-590MPa, and the thickness of the selected material is 5.5mm-7.5 mm.

Preferably, the spoke is made of 22MnB5 through a hot forming process, the strength of the hot formed material is 1200MPa-1500MPa, and the thickness of the hot formed material is 2mm-3.5 mm.

Preferably, the spoke reinforcing sheet is made of 22MnB5 through a hot forming process, the strength of the hot formed material is 1000MPa-1300MPa, and the thickness of the hot formed material is 2mm-3 mm.

Has the advantages that:

1. the utility model provides a wheel hub structure of biplate formula tailor-welded spoke, components of a whole that can function independently tailor-welded steel wheel hub structure, spoke part adopt two formula structures, connect spoke reinforcement piece and spoke through welding process, and this kind of split type structure is favorable to the product to subtract heavy and configuration optimization.

2. Spoke and spoke reinforcement welding position are the turn-ups department in spoke back lightening hole, and this position is favorable to weld forming to reduce welding deformation, reinforcing spoke structural strength, does not influence wheel hub's aesthetic measure moreover.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic view of the hub structure of the present invention.

Fig. 2 is a schematic view of the rim structure of the present invention.

Fig. 3 is a schematic view of the local connection between the rim and the spoke of the present invention.

Reference numerals:

1-a rim; 2-spokes; 3-spoke reinforcement sheet; 4-lightening holes; 5-bolt holes; 6-junction; 7-flanging and 8-lap joint.

Detailed Description

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

Referring to fig. 1-2, a hub structure of a two-piece type tailor-welded spoke comprises a rim 1, a spoke 2 and a spoke reinforcing sheet 3; the rim 1 is rolled into a cylindrical structure by a sheet plate through a rolling mill; the lap joint 8 of the cylindrical structure is connected through a laser welding process, and after the laser welding of the lap joint 8 is completed, the welding seam of the position needs to be leveled, so that the welding seam is smooth and level. And (3) sequentially passing the cylindrical wheel rim in the middle state through rolling tools with different cross section shapes for 5-7 passes, and gradually forming the cylindrical structure into the wheel rim structure in the final state.

Preferably, the rim 1 is made of a material with a tensile strength of 420MPa-590MPa and a thickness of 5.5mm-7.5 mm. A round hole is formed in the inner side of the rim 1 and used for installing an air valve.

The spoke 2 is the main load-bearing part of the hub and therefore the performance requirements for the spoke 2 are relatively high. The spoke 2 is formed by a hot forming process, the material is 22MnB5, the strength of the hot formed material is 1200MPa-1500MPa, and the thickness of the material is 2mm-3.5 mm.

Preferably, lightening holes 4 are distributed on the spoke 2, and the lightening holes 4 are in a central symmetrical structure distributed along the central hole of the spoke 2. And a flanging structure with the height of 8-10mm is arranged at the position of the lightening hole 4 of the spoke 2 and is used for enhancing the structural strength of the spoke 2 and ensuring that the bearing effect of the spoke 2 is better. The center of the spoke 2 is uniformly provided with 4 or 5 bolt holes 5 for assembling the hub structure and the whole vehicle.

The spoke reinforcing sheet 3 adopts a hot forming process, the material is 22MnB5, the strength of the hot formed material is 1000MPa-1300MPa, and the thickness of the material is 2mm-3 mm.

The spoke reinforcement 3 reinforces the spoke 2 locally, especially around the bolt hole 5. The spoke reinforcing plate 3 and the spoke 2 are connected in an arc welding or laser welding mode, the welding position is arranged at the flanging position of the lightening hole on the back surface of the spoke 2, the welding forming is facilitated at the position, the welding deformation is reduced, and the attractiveness of the hub is not affected.

The utility model discloses the spoke part adopts spoke 2 and spoke to strengthen the structure of piece 3 rather than adopting the mode reason of whole thickening spoke as follows:

(1) due to limitations of the thermoforming process.

(2) And (5) a requirement of a weight reduction target value.

(3) The structure of the spoke and the spoke reinforcing sheet is beneficial to the processing and manufacturing of the hot forming process, and has obvious weight reduction effect.

Referring to fig. 3, the rim 1 and the spoke 2 are connected by arc welding or laser welding to form a joint 6, and a flange 7 with the height of 5-8mm is arranged on the outer ring of the spoke 2.

The main function of this department turn-ups is: (1) the formability of the spoke and the quality of the formed product are improved. (2) The contact area of increment spoke and rim promotes the welding department joint strength.

The utility model discloses beneficial effect:

(1) the rim and the spoke are of split structures and are connected in a laser welding or arc welding mode, and the split structure is beneficial to weight reduction and structure optimization of products.

(2) And a flanging structure is arranged around the spoke lightening hole, so that the structural strength of the spoke is enhanced.

(3) The spoke reinforcing sheet is beneficial to locally reinforcing the spoke and enhancing the bearing capacity of the spoke part.

(4) The welding position of the spoke and the spoke reinforcing sheet is the flanging position of the lightening hole on the back surface of the spoke, the position is favorable for welding forming to reduce welding deformation, and the attractiveness of the hub is not influenced.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A hub structure of a double-piece type tailor-welded spoke is characterized by comprising a rim (1), spokes (2) and spoke reinforcing pieces (3); the rim (1) is connected with the spoke (2) in a welding mode; the spoke reinforcing sheet (3) is connected with the spoke (2) in a welding mode;

lightening holes (4) are distributed on the spoke (2), and the lightening holes (4) are of a central symmetrical structure distributed along the central hole of the spoke (2);

and a flanging structure is arranged at the position around the lightening hole (4) of the spoke (2).

2. A hub structure of a two-piece tailor welded spoke according to claim 1, wherein bolt holes (5) are uniformly distributed at the center of the spoke (2).

3. The hub structure of the two-piece tailor-welded spoke according to claim 1, wherein the rim (1) and the spoke (2) are connected by arc welding or laser welding, and a flange with a height of 5-8mm is arranged on the outer ring of the spoke.

4. A hub structure of a two-piece tailor welded spoke according to claim 1, wherein said rim (1) is selected with a material having a tensile strength of between 420MPa and 590MPa and a material thickness of between 5.5mm and 7.5 mm.

5. The hub structure of the two-piece tailor-welded spoke according to claim 1, wherein the spoke (2) is formed by a hot forming process, the material is 22MnB5, the hot formed material has a strength of 1200MPa-1500MPa, and a thickness of 2mm-3.5 mm.

6. The hub structure of the two-piece tailor-welded spoke according to claim 1, wherein the spoke reinforcement (3) is made of 22MnB5 by using a hot forming process, the hot formed material has a strength of 1000MPa-1300MPa and a thickness of 2mm-3 mm.