Vibration-isolating lifting lug device connecting an exhaust pipe to a sub-frame

A sub-frame and exhaust pipe technology, applied in the direction of the gas intake of the power unit, power unit, vehicle components, etc., to achieve the effects of improving vibration isolation capability, reducing noise transmission, and suppressing lateral vibration

Active Publication Date: 2017-06-30
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Vibration-isolating lifting lug device connecting an exhaust pipe to a sub-frame
  • Vibration-isolating lifting lug device connecting an exhaust pipe to a sub-frame
  • Vibration-isolating lifting lug device connecting an exhaust pipe to a sub-frame

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0018] see Figure 4 , The vibration isolation lifting lug device is composed of a lifting lug mounting bracket 1, a rectangular composite double lifting lug 2 and a hook 3. It designs the traditional lifting lug hook form as a matching form of mounting bracket and bolts, which is convenient for general assembly with the sub-frame, and the special mounting bracket increases the rigidity of the mounting attachment point. The traditional lifting lug structure is designed as a rectangular composite double lifting lug structure, and the lateral vibration of the exhaust pipe can be effectively suppressed through the torsional deformation of the rectangular lifting lug.

[0019] see figure 1 , the lifting lug mounting bracket 1 adopts a two-layer metal plate spot welding structure, one end of the lower metal plate is bent downward, and the edge of this end is welded to th...

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Abstract

The invention proposes a vibration-isolation lifting lug device for connecting an exhaust pipe to a sub-frame, which is composed of a lifting lug mounting bracket, a rectangular composite double lifting lug and a hook. The lifting lug mounting bracket is used to connect the rectangular composite double lifting lug and the subframe, and the rectangular composite double lifting lug is connected to the lifting lug mounting bracket through the lifting lug mounting bolt. The rectangular composite double lifting lug is a rubber lifting lug supported by the inner skeleton of the lifting lug and vulcanized rubber. It is similar to a rectangular structure. The lifting lug mounting bolts are welded at the upper end, and two hook mounting holes are arranged side by side at the lower part. The hook is a U-shaped elbow structure, and the two pipe heads at the open end penetrate horizontally into the two hook installation holes of the rectangular composite double lifting lug, and are fixed with the rubber lifting lug. Tracheal welding. Compared with the traditional vibration damping structure between the exhaust pipe and the sub-frame, the present invention can reduce the transmission of vibration and noise between the exhaust pipe and the sub-frame, improve the stiffness of the installation point of the sub-frame and the vibration-absorbing lug, and improve vibration reduction. The lateral limit and vibration damping capacity of the structure.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K13/04F16F15/08
Inventor 李原辉傅淘梅光才严清龙魏骅
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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