Novel automobile exhaust system hanging block

Abstract

The invention discloses a novel automobile exhaust system hanging block. The exhaust system hanging block comprises a metal support connected with an automobile body, a metal framework fixedly connected with the metal support, and an exhaust tube mounting part, wherein the metal framework is positioned around the outer side of the exhaust tube mounting part which is fixedly connected with the metal framework through a plurality of rubber reinforcing ribs; and a vulcanized rubber body is packed in the metal framework and is connected with the metal framework to form a whole. By adopting the technical scheme, the problem of limiting a silencer by the hanging block is solved, the displacement of a rear silencer can be in an acceptable range when an automobile runs, the durability of the hanging block can be improved, and a mounting tolerance of an exhaust system can be effectively corrected; the metal support of the hanging block which is tightly adhered to the automobile body has high rigidity, so that the vibration of a silencer side can be effectively prevented from being transferred to an automobile body side, noise transmitted to the inside of the automobile body by the exhaust system is reduced, and high noise vibration and harshness (NVH) performance is achieved; and the exhaust system hanging block is convenient to mount, a limited space is effectively utilized, and a hanging system is convenient to arrange.

Description

Technical field [0001] The invention belongs to the technical field of automobile construction, and relates to an automobile powertrain exhaust system. Specifically, the invention relates to a new type of automobile exhaust system suspension block. Background technique [0002] The main function of the exhaust system of the automobile powertrain is to conduct engine exhaust, reduce the content of pollutants and reduce noise. The exhaust suspension system hangs the exhaust system on the body to carry the exhaust weight. Its main function is to suspend the exhaust system and limit the amount of exhaust system bounce so that its displacement in all directions is within an acceptable range without interference with other surrounding parts; secondly, it can achieve vibration absorption, damping and isolation The effect of vibration reduces the structural noise of the exhaust system to meet the NVH performance requirements of the vehicle. [0003] The traditional ones are generally onl...

AI Technical Summary

Problems solved by technology

[0004] However, the displacement of the rear exhaust system is larger than that of the front end of the exhaust system. The limit of the traditional exhaust suspension block is not enough, and the rear exhaust is heavy, which is easy to cause the early aging of the suspension block; However, the vibration attenuation is insufficient, and the side rigidity of the body is small, resulting in a large contribution of structural noise to the interior of the vehicle, which affects the NVH performance of the vehicle

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