Lifting lug

Abstract

The invention discloses a lifting lug which is used for lifting a second component on a first component. The lifting lug comprises a metal framework and an elastic rubber block fixed in the metal framework. A first installation hole connected with the first component is formed in the upper portion of the elastic rubber block, a second installation hole connected with the second component is formed in the lower portion of the elastic rubber block, a cavity penetrating through the front and the back of the elastic rubber block is formed in the middle of the elastic rubber block, and a vertical spoke is arranged in the cavity and connected with the upper cavity wall and the lower cavity wall of the cavity. The lifting lug has the main advantages of keeping good damping performance, having stable work characteristics in various work conditions and improving work reliability. The lifting lug can serve as a device for connecting a gas exhausting pipe with a car body in a car gas exhausting system, has stable work performance in various work conditions and can guarantee good car NVH performance and good car reliability.

Description

technical field [0001] The invention relates to a hoisting connection structure. Background technique [0002] Lifting lugs are often used in mechanical products as a connecting piece connecting two components. For some products that require high environmental comfort, while the lifting lug is required to meet the basic lifting stability, it is also required to have the characteristics of reducing noise and vibration. [0003] For example, the lifting lug used in the automobile exhaust system is a device connecting the exhaust pipe and the car body, which has a certain impact on the noise and vibration of the car. With the improvement of people's requirements for the comfort of automobiles, it is required that the lifting lug for installing the exhaust pipe should not only have better vibration reduction characteristics, but also require stable working performance under various working conditions to ensure good NVH performance. and reliability. [0004] The lifting lugs c...

AI Technical Summary

Problems solved by technology

[0004] The lifting lugs commonly used in automobiles are composed of a metal frame and an elastic rubber block fixed in the metal frame. The upper part of the elastic rubber block has a mounting hole connected to the car body, and the lower part has a mounting hole connected to the exhaust pipe. The elastic rubber block There is a cavity in the middle of the cavity, and there are two structural forms in the cavity: one is that there is no spoke in the cavity, and there is only one cavity, which has good vibration damping performance, but the elastic rubber block is easy to deform, causing the exhaust pipe to be in contact with the surrounding area. Parts interfere, or the deformation cup of the lifting lug is cracked; the second is that a transverse spoke is designed in the cavity to connect the two side walls of the cavity, and the spoke divides the cavity into upper and lower cavities, which increases the rubber block strength, but since each cavity is smaller, vibration damping performance is worse than without spokes

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