Symmetrical combined automobile transmission shaft

Abstract

The invention discloses a symmetrical combined automobile transmission shaft. The symmetrical combined automobile transmission shaft comprises a shaft tube, a spline shaft, a telescopic sleeve and universal joints, wherein the spline shaft is arranged at the rear ends of the shaft tube and the telescopic sleeve; and the front end, near the telescopic sleeve, of the spine shaft is provided with spline teeth which extend into the telescopic sleeve and are engaged with the telescopic sleeve; the end, far away from the spline teeth, of the telescopic sleeve is provided with a first fork-shaped frame, the middle of the first fork-shaped frame is connected with one of the universal joints, the end of each universal joint is connected with a flange fork, and the end of each flange fork is provided with a flange plate; and the outer side of the telescopic sleeve is provided with an external thread and connected with a damping sleeve through the external thread, a rubber layer and a buffering layer are arranged on the inner wall of the damping sleeve, the buffering layer is arranged under the rubber layer and is of a hollow cavity structure, a plurality of elastic buffering balls are arranged in the buffering layer, a gap is reserved between every two adjacent elastic buffering balls, and the gaps are filled with foam particles. According to the symmetrical combined automobile transmission shaft, the damping buffering force of the damping sleeve and the transmission shaft tube can be further improved, and the purposes of vibration damping and noise reduction are achieved.

Description

technical field [0001] The invention relates to the technical field of transmission shafts, in particular to a symmetrical combined automobile transmission shaft. Background technique [0002] With the development of the economy, cars are becoming more and more popular, and the number of cars has increased significantly. A car is generally composed of four parts: engine, chassis, body and electrical equipment. The chassis includes transmission system, driving system, steering system and braking system. The automobile transmission shaft is an important part in the automobile transmission system, which is connected between the transmission and the drive axle. The determination of the basic parameters of the transmission shaft is determined by the general layout design of the vehicle, and it must be reasonably matched with the vehicle to meet the performance requirements of the vehicle. The basic parameters of the transmission shafts of different models are different, and the...

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Problems solved by technology

[0003] Since the transmission shaft of a car is generally made of a hollow shaft, the shock absorption effect is poor. When the car is running, the parts connected to the transmission shaft will transmit the noise due to vibration through the flange fork and spline shaft on the transmission shaft. Into the cavity of the transmission shaft tube, it is easy to cause noise pollution, and the vibration of the transmission shaft will cause damage to the transmission shaft and its related parts, and the strength, efficiency and life will be reduced.

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