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Vibration test apparatus

A technology of vibration testing and sliding devices, which is applied in vibration testing, measuring devices, and the use of repeated force/pulsation force to test the strength of materials, etc. It can solve problems such as wear and easy damage, and achieve the effect of thorough testing

Inactive Publication Date: 2012-11-21
VIBRATIONMASTER TECH CENT R L
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With this solution, the eccentricity can be adjusted when the machine is stopped as well as while the machine is running, but this is a relatively open and thus vulnerable design, in which several elements can be replaced, which therefore leads to operational and risk of wear and tear

Method used

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  • Vibration test apparatus
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Examples

Experimental program
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Embodiment Construction

[0022] figure 1 A vibration testing device 1 is shown, wherein a nut 2 and a corresponding bolt 3 bolted together are installed between a lower flange 8 and an upper flange 8 . A ring-shaped load cell 7 is installed between the lower flange 4 and the bolt head 3a for converting the clamping force between the bolt head 3a and the lower flange 8 at any moment into an electrical signal. A plurality of cylindrical holes 6 are set between the lower flange 4 and the upper flange 8, so that the upper flange 8 can move laterally relative to the lower flange 4, and the lower flange 4 is fixed by a supporting bracket 5, and the supporting bracket 5 It is adjustably fastened to the frame body 22 through a plurality of oval holes.

[0023] The upper flange 8 is mounted on a laterally movable carriage 9 . The carriage 9 is guided by four positioned guide rollers 10 , each guide roller 10 is clamped to a frame 22 by a bolt 10 a and a nut 11 . The guide roller 10 is rotatably mounted on a...

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PUM

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Abstract

The invention concerns a vibration test apparatus for testing various fastening elements, in particular bolt / nut connections, where a fastening element is fixed in the vibration test apparatus and subjected to lateral oscillating or vibrating actions via a carriage which is movably connected to a connecting rod, where the connecting rod is connected with a stroke regulator, where the eccentricity of the stroke regulator is adjustable during operation via a regulating mechanism. The new feature of the vibration test apparatus according to the invention is that the eccentricity of the stroke regulator via a regulating mechanism is stepless and arranged internally of a stroke regulator and at least includes a slide, where the slide is displaceable in relation to a connecting rod bearing via a control rod.

Description

technical field [0001] The invention relates to a vibration testing device for testing various fasteners, especially bolt / nut connections, wherein a fastener is fixed in the vibration testing device, and a sliding The fastener is subjected to lateral swing or vibration, wherein the connecting rod is connected with the stroke corrector, and the eccentricity of the stroke corrector is adjustable through the correction mechanism during operation. Background technique [0002] DIN 65151 (German Standard for Fasteners) discloses a test method in which the bolt-nut connection is subjected to vibration. The test fixture according to DIN 65151 is constructed in such a way that the bolt-nut assembly is subjected to lateral oscillations. [0003] These lateral movements are created by the crank moving the top back and forth relative to the fixed bottom through a flexible connection. A bolt-and-nut connection is where the top and bottom are bolted together. In order to reduce fricti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/32
CPCG01M7/022G01N3/32G01N2203/0007G01M7/04
Inventor 耶斯佩·波伊森·尼尔森
Owner VIBRATIONMASTER TECH CENT R L
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