CN210760052U

CN210760052U - Lightweight high strength wheel

Info

Publication number: CN210760052U
Application number: CN201921274338.0U
Authority: CN
Inventors: 刘思德; 赵运岭
Original assignee: Dongfeng Automotive Wheel Suizhou Co ltd
Current assignee: Dongfeng Automotive Wheel Suizhou Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-06-16
Anticipated expiration: 2029-08-08

Abstract

The utility model provides a lightweight high strength wheel, includes rim and spoke that the welding is together, its characterized in that: the wheel rim is characterized in that a plurality of salient points are arranged on the outer side face of the wheel rim, the salient points are located at the welding positions of the wheel rim and the wheel spokes, and the salient points are distributed along the axial direction of the wheel rim. The utility model discloses set up the strengthening rib of radial bump area as the rim in the welding department of rim and spoke, can make the rim have higher radial fatigue strength like this, can suitably reduce rim thickness after adopting above-mentioned structure simultaneously, realize the wheel lightweight, material saving cost.

Description

Lightweight high strength wheel

Technical Field

The utility model relates to a wheel field, concretely relates to lightweight high strength wheel.

Background

The wheel is formed by welding and combining a rim 1 and a spoke 2 as shown in figure 1. As an important safety part on an automobile, a wheel must meet a certain fatigue life, and whether the fatigue life meets the requirement or not needs to be verified by performing a bench test in the product development stage and the actual production. Generally, the tests for verifying the fatigue life of the wheel mainly comprise a bending fatigue test, a radial fatigue test and the like. When the failure mode of the wheel radial fatigue test of our company is counted, more than 90% of failures are that the material of the wheel rim is cracked at an arrow F in figure 1, and the directions of the cracks are all the circumferential directions of the wheel rim, which are caused by bending moment and torque (in the circumferential direction) of the wheel rim during rotation.

Some wheels at present have reinforcing ribs arranged inside the rim in order to increase the mechanical strength of the rim, but the arrangement has the following defects: 1. the spoke rim is difficult to combine: the inner diameter of the rim is required to be in interference fit with the outer diameter of the spoke during synthesis, and the reinforcing ribs are arranged on the inner side surface of the rim, so that the outer surface of the spoke is damaged during synthesis, and the serious out-of-tolerance of the end and the radial run of the synthesized wheel is caused; 2. a gap is formed at the part where the spoke and the rim are matched, the synthetic welding strength is influenced, welding slag leaks from the gap, and the surface quality of the wheel is influenced; 3. the spoke and the wheel rim are partially gapped in the matching position, floating paint can be generated, and the paint quality is influenced: when the wheel is soaked in the paint liquid, the paint enters a local gap at the matching part of the wheel spoke and the wheel rim, and the paint liquid cannot flow out of the gap quickly when the wheel leaves the paint liquid due to the small gap until the paint liquid flows out during heating and drying to form floating paint.

Disclosure of Invention

The utility model aims at overcoming the defect and not enough of prior art, providing a lightweight high strength wheel that simple structure, light in weight, intensity are high.

In order to achieve the above purpose, the technical solution of the utility model is that: the utility model provides a lightweight high strength wheel, includes rim and spoke that the welding is together, its characterized in that: the wheel rim is characterized in that a plurality of salient points are arranged on the outer side face of the wheel rim, the salient points are located at the welding positions of the wheel rim and the wheel spokes, and the salient points are distributed along the axial direction of the wheel rim.

The head of each convex point is arc-shaped, the height of each convex point is 0.5-1 mm, and the width of each convex point is 3-4 mm.

Compared with the prior art, the utility model, following advantage has:

1. the utility model discloses set up the strengthening rib of radial bump area as the rim in the welding department of rim and spoke, can make the rim have higher radial fatigue strength like this, can suitably reduce rim thickness after adopting above-mentioned structure simultaneously, realize the wheel lightweight, material saving cost.

2. The utility model discloses the unique design of centering bump shape has guaranteed bump forming die's intensity, has improved the fatigue life of wheel.

Drawings

Fig. 1 is a schematic view of the composition of a wheel.

Fig. 2 is a schematic structural diagram of the wheel rim of the present invention.

Fig. 3 is a cross-sectional view taken along line E-E of fig. 2.

Fig. 4 is an enlarged sectional view of a section BC in fig. 3.

In the figure: rim 1, spoke 2, salient point 3.

Detailed Description

The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.

Referring to fig. 1-4, a lightweight high-strength wheel comprises a rim 1 and a spoke 2 which are welded together, wherein a plurality of salient points 3 are arranged on the outer side surface of the rim 1, the salient points 3 are positioned at the welding position of the rim 1 and the spoke 2, and the salient points 3 are distributed along the axial direction of the rim 1.

The specific number of the salient points 3 is determined according to the size of the inner diameter phi of the wheel rim BC section, the larger the inner diameter phi is, the more the number of the salient points 3 is required, and specifically, one salient point 3 is designed with the circumference of about 12 mm. The head of the convex point 3 is designed into a circular arc shape, so that the strength of the convex point 3 forming die is convenient to ensure, the height H of the convex point 3 is 0.5-1 mm, and the width L of the convex point is about 4 mm.

Claims

1. The utility model provides a lightweight high strength wheel, includes rim (1) and spoke (2) that the welding is together, its characterized in that: be provided with a plurality of bumps (3) on rim (1) lateral surface, bump (3) are located rim (1) and spoke (2) welding department, and bump (3) along the axial distribution of rim (1).

2. The lightweight high-strength wheel according to claim 1, characterized in that: the head of the convex point (3) is arc-shaped, the height of the convex point (3) is 0.5-1 mm, and the width of the convex point is 3-4 mm.