Novel steering transmission shaft energy absorption and vibration reduction structure

Abstract

The invention discloses a novel steering transmission shaft energy absorption and vibration reduction structure. The novel steering transmission shaft energy absorption and vibration reduction structure consists of a corrugated steel pipe shaft and an intermediate shaft which are arranged between an upper joint yoke and a lower joint yoke and are sequentially and fixedly connected, wherein the intermediate shaft is of a whole shaft pipe structure, the upper joint yoke is inserted into one end of the corrugated steel pipe shaft and is fixedly connected with the end of the corrugated steel pipe shaft, the other end of the corrugated steel pipe shaft is arranged at one end of the intermediate shaft in a sleeving mode and is connected with the end of the intermediate shaft, and the lower joint yoke is inserted into the other end of the intermediate shaft and is fixedly connected with the end of the intermediate shaft. The novel steering transmission shaft energy absorption and vibration reduction structure is novel in design, is an integral structure formed by fixedly connecting the corrugated steel pipe shaft, the intermediate shaft and the upper joint yoke and the lower joint yoke without individual vibration reduction parts and is simple and reliable, the performance is not remarkably reduced with the service life, no gap problem exists, and accordingly the situation that abnormal noise is produced due to long-term usage is avoided. The impact transferred from tires and an auxiliary frame to a steering wheel is attenuated by utilizing the elastic rigidity of the corrugated steel pipe shaft, the effect of vibration isolation between an automotive chassis and the steering wheel is achieved, and the corrugated steel pipe shaft and the intermediate shaft are both made of a tubular product and are light in weight and good in durability.

Description

technical field [0001] The invention relates to a novel energy-absorbing and vibration-reducing structure of a steering transmission shaft, which belongs to the technical field of automobile steering systems. Background technique [0002] At present, the energy absorption and vibration reduction of automobile steering transmission shafts are solved by vibration isolation. For example, the inner and outer splines with wear-resistant coating are used for sliding fit between the upper and lower sections of the steering drive shaft, or ball sliding fit. etc., the above solutions have the problem of coating layer or steel ball wear, and there will be steering system clearance in the middle and late stages of the product's service life, causing abnormal noise and other phenomena. At the same time, the current steering drive shaft and its energy-absorbing and vibration-damping structure use a large amount of materials, which will increase the quality of the vehicle. [0003] As di...

AI Technical Summary

Problems solved by technology

However, the structure is complex, and the relative cost of materials used and later maintenance will be greatly increased.

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