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Structural member performance testing system

A technology for testing systems and structural parts, applied in the field of construction machinery, can solve problems such as complexity, uneven surface of welding, and inability to attach strain gauges, to achieve the effect of improving the environment and simplifying the system

Active Publication Date: 2012-11-28
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, at least two test platforms are required to test the performance of structural parts. It can be seen that the existing performance test system for structural parts is relatively complicated.
[0003] In addition, large-sized structural parts are generally welded by multiple small structural parts. At each weld, due to the uneven surface of the weld, strain gauges cannot be attached. Therefore, the stress and strain of the weld cannot be measured through strain gauges.
That is, the existing performance testing system for structural parts is not perfect enough

Method used

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Examples

Experimental program
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Embodiment 1

[0025] Embodiment 1. In this embodiment, the structural component performance testing system tests the profile of the structural component. see figure 2 , the testing system includes: a rotating device 100 , a fixing device 200 , a first image acquisition unit 310 and a first control unit 320 . That is, in this example, the measurement device includes: a first image acquisition unit 310 and a first control unit 320 .

[0026] Since the test system tests the profile of the end face of the structural member, after placing the structural member on the rotating device 100 and fixing it with the fixing device 200, the first image acquisition unit 310 can be placed near the rotating device 100, and there may be only one The first image acquisition unit 310, preferably, may have two first image acquisition units 310, such as figure 2 As shown, they are respectively placed at positions perpendicular to the centerline of the rotating device 100 , one is located in front of the cent...

Embodiment 2

[0042] Embodiment 2. In this embodiment, the structural member performance testing system tests the stress and strain of the structural member. see Figure 4, the testing system includes: a rotating device 100 , a fixing device 200 , a speckle meter 330 , a second image acquisition unit 340 and a second control unit 350 . That is, in this embodiment, the measurement device includes: a speckle meter 330 , a second image acquisition unit 340 and a second control unit 350 .

[0043] The speckle meter 330 may be a Michelson speckle interferometer. Its principle is to use a typical Michelson interference optical path to deflect an object by a small angle to generate equal-thickness interference, and to introduce carrier interference fringes containing object position information on the surface of the object.

[0044] That is, the speckle meter 330 is opposite to the first test point on the structural member, and is used to form carrier interference fringes containing position info...

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Abstract

The invention discloses a structural member performance testing system which is used for simplifying the structural member performance testing system in the prior art. The testing system comprises a rotating device, a fixing device and a measuring device, wherein the rotating device is used for containing a structural member and can rotate the structural member; the fixing device is used for being in contact with the end face of the structural member and fixing the structural member and can apply an acting force to the structural member through movement; and the measuring device is used for measuring the performances of the structural member, wherein the performances comprise contour and / or stress strain.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a performance testing system for structural parts. Background technique [0002] A member with a certain shape and structure and capable of bearing loads is called a structural member. Such as: brackets, frames, jibs, internal skeletons and support positioning frames, etc. After the structural part is manufactured, performance testing is required, including: profile measurement of the end face of the structural part and stress and strain measurement on the surface of the structural part. Generally, the end face of the structural part is measured by a testing system including a setting mold or a profiler, and the stress and strain on the surface of the structural part are measured by a testing system including strain gauges and strain gauges. That is to say, at least two test platforms are required to test the performance of structural parts. It can be seen that the existing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24G01M13/00
Inventor 涂宏斌付玲任会礼
Owner ZOOMLION HEAVY IND CO LTD
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