A light-weight sound-absorbing and shock-absorbing wheel hub

Abstract

The invention discloses a light-weight sound-absorbing and shock-absorbing wheel hub. The sound-absorbing and shock-absorbing wheel hub includes an outer ring, an inner ring and a shock-absorbing reed. The outer ring is annular, and a shock-absorbing spring is arranged between the inner surface of the outer ring and the outer surface of the inner ring. piece. The inner ring includes an outer ring, an inner ring and a web, the outer ring and the inner ring are coaxially arranged, a web is arranged between the outer ring and the inner ring, the web is fixedly connected to the outer ring and the inner ring respectively, and the center of the inner ring is provided with a web. The axle hole, the axle hole coincides with the axis of the inner ring, the end face of the inner ring facing away from the axle hole is provided with several fastening holes, and the length direction of the fastening holes is parallel to the axis of the axle hole. The cushioning reed is annular wave shape. The largest diameter of the cushioning reed is against the inner surface of the outer ring, and the smallest diameter of the cushioning reed is against the outer surface of the outer ring. The cushioning reed is fixedly connected to the outer ring and the inner ring respectively. ;A sound-absorbing layer is filled between the outer ring and the inner ring, and the sound-absorbing layer is a porous material. The hub is added with a wave-shaped annular reed, which has good elastic performance, and the limiter rigidly supports the inner and outer rings.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a light-weight sound-absorbing and shock-absorbing wheel hub. Background technique [0002] The pneumatic tire of the car will generate noise due to the periodic compression of the internal air when driving. This noise is especially loud after resonance with the tire cavity, and the noise will be transmitted to the body through the wheel hub and axle. This noise will cause discomfort. [0003] When a car is driving on bumpy roads, there will be a lot of vibration, which will also cause discomfort to the occupants of the car. [0004] In the past, the wheel hub only played the role of connection and fixation. The shock absorption of the car was realized by the shock absorption system behind the tire and the axle, and the noise of the tire was basically ignored, or the theoretical design was only carried out on the internal cavity size of the tire to avoid resonance. Frequency and setti...

AI Technical Summary

Problems solved by technology

[0003] There will be a lot of vibration when the car is driving on a bumpy road, which will also cause discomfort to the occupants of the car

[0004] In the past, the wheel hub only played the role of connection and fixation. The shock absorption of the car was realized through the shock absorber system behind the tire and the wheel axle, and the noise of the tire was basically not considered, or it was only theoretically designed on the size of the inner cavity of the tire to avoid resonance. Frequency and setting a layer of sound-absorbing material on the inner surface of the tire, etc. These methods are all traditional methods. After modification on these methods, the effect of shock absorption and noise reduction can be improved not significantly, so how to further improve the shock absorption of the car? The noise reduction function is a problem that the automotive industry pays more attention to

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