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Mobile automobile body modal test bed

A technology for automobile body and modal testing, which is used in vehicle testing, machine/structural component testing, measuring devices, etc. to achieve the effects of easy movement, convenient operation and simple structure

Active Publication Date: 2010-08-25
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no trench in the original modal test room, so there is no need to use the test bench

Method used

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  • Mobile automobile body modal test bed
  • Mobile automobile body modal test bed
  • Mobile automobile body modal test bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a mobile vehicle body modal test bench includes a chassis 1, a body 2 whose lower part is connected to the surrounding edges of the chassis, and a rocker arm whose lower end is connected to the upper middle of the chassis. Support block 6, the screw mandrel 3 that the middle part cooperates with the upper part of the rocker arm support block, the hand wheel shaft 7 that one end passes through the side of the vehicle body 2 and is connected with one end of the screw mandrel;

[0017] A rectangular hole 1-1 is respectively provided at the four corners of the chassis 1, and a nut 4 is connected to both ends of the screw rod 3 respectively, and the two nuts are respectively connected with a rocker arm 5;

[0018] The two ends of the two rocker arms are respectively provided with perpendicular bends, and the middle parts of the four bends are respectively connected with a rotating shaft support 8-1 provided on the chassis 1 thro...

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Abstract

The invention discloses a mobile automobile body modal test bed, which comprises a chassis, a body, a rocking arm supporting block, a guiding screw and a hand wheel shaft, and is characterized in that: four corners of the chassis are provided with a rectangular hole respectively; two end parts of the guiding screw are in matching connection with a nut respectively, and the two nuts are connected with a rocking arm respectively; two ends of the two rocking arms are provided with a bend vertical to the rocking arms respectively; the middle parts of the four bends are in matching connection with a rotating shaft supporting seat arranged on the chassis through a rotating shaft respectively; the lower end parts of the four bends are in matching connection with a wheel through a wheel shaft respectively; the four wheels correspond to the rectangular holes at the four corners of the chassis; and the four wheels can be driven to move up and down by rotating the hand wheel shaft. The mobile automobile body model test bed has a simple structure, is reliable to use, is convenient to operate, not only can be moved easily on a trench of a modal laboratory but also can bear weight, and ensures the normal proceeding of a modal test on an entire automobile or a body in white.

Description

technical field [0001] The invention relates to an automobile body test device, in particular to a mobile automobile body modal test bench. technical background [0002] With the continuous development of modern automobile technology, the vibration and noise performance of automobiles has become one of the important performance indicators of automobiles. Modal analysis has become one of the important indicators to control the NVH (noise and vibration) performance of the vehicle. The original modal test room has no trench and does not need to use a test bench. There is a trench in the new modal test room. When the modal test is carried out on the whole vehicle or the body-in-white, it is necessary to place a test bench on the trench to place the exciter for the modal test. Contents of the invention [0003] The purpose of this invention is to provide a mobile automobile body modal test bench, which can easily move on the ditch of the modal test room, and at the same time ...

Claims

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Application Information

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IPC IPC(8): G01H17/00G01M17/007
Inventor 李传兵刘宏玉靳红英兰凯
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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