Three-plate aluminum alloy forged hub

Abstract

The invention discloses a three-plate aluminum alloy forged hub, which comprises a rim front plate, a spoke middle plate and a rim rear plate, wherein the rim front plate, the spoke middle plate and the rim rear plate are in clearance fit and assembled and connected through fastening bolts; the spoke middle plate is provided with a protruding rib for preventing the rim front plate and the rim rear plate from radially shifting; and the protruding rib shields and blocks a gap of a joint of the spoke middle plate, the rim front plate and the rim rear plate in the hub. The rim front plate and the rim rear plate are forged by combination of an extrusion process and a spinning process; the assembly is close fit assembly; the concentric precision of the hub is within 0.2mm; complicated dynamic balance adjustment is not needed; the joint of the three plates is totally sealed so as to difficultly leak air; and the three-plate aluminum alloy forged hub has the characteristics of light weight, high concentric degree, simple assembly, attractive appearance, novelty and the like, and is particularly suitable for medium-to-high grade automobiles.

Description

technical field [0001] The invention relates to the field of automobile wheel hubs, in particular to the field of three-piece automobile wheel hubs, in particular to a three-piece aluminum alloy forged wheel hub. Background technique [0002] The wheel hub includes the rim and the spokes. Ordinary wheel hubs generally have to be molded and cast into one piece by casting, or cast separately and then welded into a complete hub. Slag holes, pinholes, pores and looseness are easy to occur when castings are cast. Defects, so the strength is not high, and one pattern and specification must correspond to one mold. At present, the high-tech automobile wheel hub in the world is an aluminum alloy three-piece hub, which divides the hub into three pieces, namely the front rim, the rear rim and the middle spoke. The three pieces of the hub are made of 5-series or 6-series aluminum alloy materials and manufactured by forging technology, and then fixed with screws. This kind of hub is sup...

AI Technical Summary

Problems solved by technology

At present, in the assembly of three-piece aluminum alloy wheels, loose fit is adopted internationally. There is a certain gap between the front and rear pieces and the middle piece, and then the position of the middle piece is adjusted by using the gap to achieve a balance, so that each wheel It is time-consuming and labor-intensive to adjust the dynamic balance, and the adjustment is quite difficult, so the wheel hub is not beautiful and is not conducive to mass production

Patent No. ZL200820178707.1 Chinese Invention Patent "A Three-Piece Automobile Hub" (Notice No. CN201283747Y) also discloses a three-piece hub, which divides the rim into three arc segments, and the two sides of each segment They are all made with grooves, and then connected into a complete rim by snapping the steel ring into the groove. The spokes are directly connected to the inner surface of the rim with bolts. The disadvantage of this kind of hub is that the rim is relatively thick, which increases the weight of the hub. It also increases the fuel consumption of the vehicle, and there are multiple threaded hole grooves on the inner surface of the rim, which affects the strength of the hub, and the bolts are connected vertically to the rim surface, making assembly complicated and difficult, so this kind of hub cannot fully meet the needs of the market , not suitable for the assembly and use of current high and mid-range cars

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