Vibration isolation lifting lug device with exhaust pipe and auxiliary frame connected

Abstract

The invention provides a vibration isolation lifting lug device with an exhaust pipe and an auxiliary frame connected. The vibration isolation lifting lug device is composed of a lifting lug installation support, double rectangular composite lifting lugs and a hook. The lifting lug installation support is used for connecting the double rectangular composite lifting lugs with the auxiliary frame. The double rectangular composite lifting lugs are connected with the lifting lug installation support through lifting lug installation bolts. The double rectangular composite lifting lugs are rubber lifting lugs with frameworks inside the lifting lugs as supports and rubber vulcanized, and are of a similar rectangular structure, the lifting lug installation bolts are welded to the upper ends of the double rectangular composite lifting lugs, and two hook installation holes are formed in the lower portions of the double rectangular composite lifting lugs side by side. The hook is of a U-shaped bend structure, the two pipe heads of the open ends horizontally penetrate through the two hook installation holes of the double rectangular composite lifting lugs and are fixed to the rubber lifting lugs, and the U-shaped end is downwards bent and used for being welded to the exhaust pipe. Compared with a traditional exhaust pipe and auxiliary frame vibration reduction structure, vibration noise transferring between the exhaust pipe and the auxiliary frame can be reduced, the rigidity of the auxiliary frame and the vibration reduction lifting lug installation points is improved, and transverse limiting and vibration reduction capacity of the vibration reduction structure are improved.

Description

technical field [0001] The invention relates to a vehicle chassis and power system vibration reduction and vibration isolation technology, in particular to a vibration isolation structure for installing an exhaust pipe. Background technique [0002] With the development and progress of society, people have higher and higher requirements for automobile NVH, and ride comfort has become one of the focuses of consumers. For most passenger cars, exhaust system mounting points are designed on the front subframe of the chassis. In order to slow down the transmission of the vibration noise of the exhaust system to the interior of the vehicle body through the subframe, a vibration isolation and noise reduction structure is generally designed at the installation point of the subframe of the exhaust system. The traditional vibration isolation structure is generally designed as a single lug structure, and an independent rubber lug is used to connect the exhaust pipe to the subframe thr...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a vibration-isolating lifting lug device connecting the exhaust pipe and the sub-frame. The technical problem to be solved is to reduce the transmission of vibration and noise between the exhaust pipe and the sub-frame, and improve the The rigidity of the installation point improves the lateral limit and vibration reduction capacity of the vibration-damping structure

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