Tubeless thickness-unequal weld joint-free integral steel wheel and processing technology thereof

Abstract

A tubeless thickness-unequal weld joint-free integral steel wheel comprises a rim and a spoke. The rim and the spoke are integrally formed and formed by spinning a steel plate. The spoke face of the spoke is one of a flat cone face, a convex cone face or a concave cone face. The tubeless thickness-unequal weld joint-free integral steel wheel adopts the steel plate integral spinning forming technology, the processes that the rim and the spoke of a traditional split type wheel are respectively manufactured, and then assembled and welded are omitted, a seal ring is not used, thus the manufacturing process is decreased and the air inflation leakage problem of the traditional wheel is fundamentally eliminated. The tubeless thickness-unequal weld joint-free integral steel wheel adopts the integral steel spinning forming technology, the problem that a wheel made of an aluminum material is low in strength and poorer in loading capacity when compared with the steel wheel is solved, manufacturing of a finished product of the wheel of which the cross section is unequal in thickness under the condition of equal strength is realized, the bearing capacity is improved and the weight reduction of the wheel is realized.

Description

technical field [0001] The invention relates to the field of automobile wheels, in particular to a tubeless integral steel wheel with unequal thickness and no welding seam and its processing technology. Background technique [0002] There are two types of automobile wheels: tubeless and tubeless. Compared with the two, tubeless wheels have the advantages of fewer components, convenient installation, and no need to disassemble tire repairs. half of. There are two types of existing tubeless wheels, one is an aluminum one-piece (refer to figure 1 ), it is processed from a cast or forged integral aluminum billet, although there is no leakage caused by the welding process, the bearing capacity is not as good as that of steel, and the processing workload of the overall cutting is large and the cost is high; the other is the combination of steel welding (refer to figure 2 and image 3 ), which is composed of spokes and rims welded together, and lock rings and leak-proof sealing...

AI Technical Summary

Problems solved by technology

There are two types of existing tubeless wheels, one is an aluminum one-piece (refer to figure 1 ), it is processed from a cast or forged integral aluminum billet, although there is no leakage caused by the welding process, the bearing capacity is not as good as that of steel, and the processing workload of the overall cutting is large and the cost is high; the other is the combination of steel welding (refer to figure 2 and image 3 ), which is composed of spokes and rim welding, and a locking ring and a leak-proof sealing ring are also required to be installed during use, which results in many assemblies and inconvenient assembly and disassembly

In addition, because the rim is welded after rolling, it is easy to leak due to loose welds

Therefore, there are different defects in the above two types, and it has become a difficult problem that all countries in the world hope to break through the application of tubeless automobile wheels.

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