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Fatigue tester

A fatigue testing machine and the technology to be tested are applied in the field of fatigue testing machines and can solve problems such as inconsistent display values

Inactive Publication Date: 2012-07-11
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This inertial force often causes the actual force loaded on the test piece 1 to be seriously inconsistent with the displayed value

Method used

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Examples

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Embodiment Construction

[0025] figure 2 A fatigue testing machine is given, including the fixed pulley I 3, the fixed pulley II 5 and the tension sensor I 4 located above the tested piece 1, and the fixed pulley III7, the fixed pulley IV9 and the tension sensor II located below the tested piece 1 8; fixed pulley I 3, fixed pulley II 5 and tension sensor I 4 are located at the same height, fixed pulley III7, fixed pulley IV9 and tension sensor II8 are also located at the same height; in order to ensure the accuracy of detection data, fixed pulley I 3, fixed pulley Pulley II 5, fixed pulley III7 and fixed pulley IV9 are all fixed pulleys that adopt air bearings.

[0026] Tension sensor I4 is set between fixed pulley I3 and fixed pulley II5, and tension sensor II8 is set between fixed pulley III7 and fixed pulley IV9.

[0027] One end of the rope I 2 is fixedly connected to the upper surface of the test piece 1, and the other end of the rope I 2 is connected to the disc 6 after going around the fixed ...

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Abstract

The invention discloses a fatigue tester, which comprises a fixed pulley I (3), a fixed pulley II (5) and a tension sensor I (4) which are positioned above a tested piece (1) and a fixed pulley III (7), a fixed pulley IV (9) and a tension sensor II (8) which are positioned below the tested piece (1), wherein one end of a rope I (2) is fixedly connected with the upper surface of the tested piece (1), and the other end of the rope I (2) sequentially moves around the fixed pulley I (3), the tension sensor I (4) and the fixed pulley II (5) and is connected with a disk (6); and one end of a rope II (10) is fixedly connected with the lower surface of the tested piece (1), and the other end of the rope II (10) sequentially moves around the fixed pulley IV (9), the tension sensor II (8) and the fixed pulley III (7) and is connected with the disk (6). The fatigue tester is used for precisely measuring a loading force.

Description

technical field [0001] The invention relates to a fatigue testing machine, in particular to a fatigue testing machine which adopts a tension sensor and a rope to load. Background technique [0002] At present, the existing fatigue testing machine generally adopts a loading mechanism, the output shaft of the loading mechanism (pneumatic, hydraulic or electric motor, etc.) is connected to the sensor, and then connected to the tested piece through the fixture. Such as figure 1 As shown: the cylinder piston 200 of the cylinder 100 is provided with a force sensor 300 and an installation fixture 400 , and the tested object 1 can be fixed on the installation fixture 400 . [0003] This fatigue testing machine has the following technical problems: [0004] Problem 1 exists: [0005] Since the tested piece 1 is deformed during the fatigue test, the deformation direction and the force loading direction cannot be completely overlapped. During the fatigue test process, the deformatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/32
Inventor 谢毅
Owner ZHEJIANG GONGSHANG UNIVERSITY