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Supporting structure of automobile suspension rack

A technology for supporting structure and vehicle mounting, which is applied to power plants, vehicle components, jet propulsion devices, etc., can solve the problems of weak connection and poor rigidity of the mounting bracket, and achieve the effect of increasing modal frequency and increasing stiffness.

Inactive Publication Date: 2011-04-27
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The suspension bracket of this model is only connected to the bottom surface of the longitudinal beam by two bolts. Such a connection is very weak, resulting in poor rigidity of the suspension bracket and resonance around 3000 rpm.

Method used

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  • Supporting structure of automobile suspension rack
  • Supporting structure of automobile suspension rack
  • Supporting structure of automobile suspension rack

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Experimental program
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Effect test

Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] see figure 1 The first welded assembly of the support structure of the automobile suspension bracket shown is composed of a first reinforcement 2 in the shape of a dustpan and two reinforcement ribs 1 welded on the rear facade and bottom surface of the first reinforcement , two reinforcement ribs 1 and the first reinforcement member 2 are welded by shielded welding, a certain distance should be kept between the two reinforcement ribs, and a certain distance should also be ensured from the side of the first reinforcement member 2; in the first reinforcement member 2 Six bolt holes 8, 9, 10, 11, 12, 13 are provided on the rear facade of the car, and three bolt holes 14, 15, 16 are provided on the bottom surface.

[0022] see figure 2 , the second welding assembly is composed of the second reinforcement 3 and the third reinforcement 4 and the longitudinal beam 5...

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Abstract

The invention discloses a supporting structure of an automobile suspension rack, which comprises a first welding assembly and a second welding assembly. The supporting structure is characterized in that the first welding assembly comprises a first dustpan-shaped reinforcing member and two reinforcing ribs welded on the rear vertical surface and the bottom surface of the first reinforcing member, six bolt holes are arranged on the rear vertical surface of the first reinforcing member, three bolt holes are arranged on the bottom surface of the first reinforcing member; and the second welding assembly is formed by welding a second reinforcing member and a third reinforcing member and a longitudinal beam, and the second welding assembly and the suspension rack are respectively connected with the first welding assembly through bolts. The invention ensures that a surface connecting mode is formed between a front axle and the longitudinal beam so as to improve the mode frequency of the front axle, shortens the jib length of the installing surface of the suspension rack so as to improve the rigidity of the suspension rack, thereby improving the rigidity of the suspension rack. Through verification calculation, the front axle mode avoids the noise peak at 3,000 turns, and the local mode of the suspension racket also avoids 4-order driving frequency at 6,000 turns.

Description

technical field [0001] The invention belongs to automobile components, in particular to a supporting structure of an automobile suspension bracket, which is used for the connection between a longitudinal beam and an engine suspension passive side bracket. Background technique [0002] Suspension bracket refers to the elastic connection part between the powertrain and the frame or body, and is one of the key paths for the vibration of the engine to be transmitted to the body. The quality of this component is directly related to the vibration transmission between the engine and the body. It affects the NVH (NVH: Noise Vibration & Harshness) performance of the vehicle. A good powertrain suspension bracket can better control the transmission of the exciting force of the engine itself to the car body, so as not to make the chassis and body produce strong vibration and noise when the engine is working, so as to improve the comfort and comfort of the car. Use reliability. In the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K5/12
Inventor 艾传智佃长青王卓缪利锋
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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