Light low-resistance high-strength carbon fiber hub

Abstract

The invention aims at providing a light low-resistance high-strength carbon fiber hub. The light low-resistance high-strength carbon fiber hub comprises a carbon fiber hub body, a spoke and an aluminum alloy free hub. The spoke is connected with the carbon fiber hub body and the aluminum alloy free hub, bearing basins are mounted on the two sides of the aluminum alloy free hub, large holes and small holes between the large holes and the aluminum alloy free hubs are formed in the bearing basins, silicon nitride bearings are mounted in the large holes, an aluminum alloy shaft stretches into thealuminum alloy free hub, and the two ends of the aluminum alloy shaft cooperate with the silicon nitride bearings at the two ends of the aluminum alloy free hub respectively. The silicon nitride bearings are arranged in the bearing basins, the high-strength aluminum alloy shaft and the bearings are in interference fit, and good detachability of the silicon nitride bearings and the high-strength aluminum alloy shaft is guaranteed; on one hand, secondary friction among axles-axle sleeves, bearing balls and inner and outer rings in the traditional process is converted into primary friction between the bearing balls and the inner and outer rings, on the other hand, friction between the bearings and the axle sleeves in the traditional process is also eliminated, and the effect of reducing the friction is achieved.

Description

technical field [0001] The invention relates to a wheel hub. Background technique [0002] The quality of carbon fiber is lighter than that of metal aluminum, but its strength is higher than that of steel, and it has high modulus and corrosion resistance. It is widely used in national defense and civilian applications; [0003] Wheel hubs are divided into one-piece hubs and split-type hubs. The split-type hubs include hubs, spokes, steel rings, bearings, and bushings. The materials are generally high-quality alloy aluminum or stainless steel; traditional one-piece hubs have no bearings. Design, the bearing is not easy to disassemble, and the shaft sleeve outside the axle produces secondary friction; [0004] At present, the research on reducing the harmful friction of the hub focuses on the transformation of the bearing, the utilization of lubricating oil, and the selection of the body material, and there are few studies on reducing the harmful friction of the hub from the ...

AI Technical Summary

Problems solved by technology

[0005] In summary, it can be seen that the existing hubs are difficult to meet the requirements for low resistance, light weight and high strength

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