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Device for measuring flexural rigidity of structural member in high-low temperature environments

A testing device, a technology of bending stiffness, applied in the testing of machine/structural components, measuring devices, elasticity testing, etc., can solve the problem that the laser transmitter cannot be located on the component, follow the three-dimensional displacement of a certain point, and achieve weight The effect of light weight, good real-time performance and high measurement accuracy

Active Publication Date: 2014-01-01
沛县度创科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the stiffness test at high and low temperatures, the laser emitter cannot be located on the component, and the deformation of the machine base must also be taken into account during the test
The patent application number is 201110370253.4 for "three-dimensional deformation measurement device of the tested part in the high and low temperature box" and the patent application number is 201110370271.2 for the "high precision measurement system for three-dimensional small deformation of the mechanical device in the high and low temperature box" to provide a high and low temperature box The measurement method of three-dimensional deformation of components, but this kind of method can only follow the three-dimensional displacement of a certain point, and the stiffness test needs to obtain accurate loading force and the size of the moment arm

Method used

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  • Device for measuring flexural rigidity of structural member in high-low temperature environments
  • Device for measuring flexural rigidity of structural member in high-low temperature environments

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Embodiment Construction

[0029] In conjunction with the accompanying drawings, a device for testing the bending stiffness of structural parts in high and low temperature environments, the test device includes a laser measurement group, an air flotation device, a lifting device 1, a moving beam 2, a high and low temperature resistant pull rope 7, a high and low temperature box etc. The air flotation device includes an air flotation shaft 16 and an air flotation sleeve 5 .

[0030] The lifting device 1 is located outside the high and low temperature chamber, and the moving beam 2 is set on the lifting device 1 and can move up and down.

[0031] The air flotation device has two sets, and the air flotation shaft 16 of the air flotation device is fixed on the moving beam 2 through the air flotation bearing seat 3, and the air flotation sleeve 5 is sleeved on the air flotation shaft 16. A grating displacement sensor 4 and a wireless data transmission module 15 are installed on the air bearing shaft 16 .

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PUM

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Abstract

A device for measuring the flexural rigidity of a structural member in the high-low temperature environments comprises a laser measuring set, air floating devices, a lifting device, a moving beam, high-low temperature resistant pulling ropes and the like. The moving beam is arranged on the lifting device in a sleeved mode. The two sets of air floating devices are arranged. Each air floating shaft is fixed to the moving beam through an air floating bearing seat. Each air floating shaft is sleeved with an air floating sleeve. The member to be measured is installed on an installation base of the member to be measured in a high-low temperature box. Each high-low temperature resistant pulling rope vertically penetrates through a through hole in the top of the high-low temperature box and is connected with one air floating sleeve and the member to be measured. The laser measuring set is fixed to the outer side of the high-low temperature box and opposite to an observation window in the side face of the high-low temperature box in position. According to the device for measuring the flexural rigidity of the structural member in the high-low temperature environments, force is exerted through the high-low temperature resistant pulling ropes, the arm of force is obtained through the air floating devices, the direction of the acting force is guaranteed through the air floating devices, the tension of each rope is measured through a force sensor, angular deformation is obtained through the laser measuring set, all data are transmitted through a wireless data transmission module, and therefore a bending moment-angular deformation curve of the flexural rigidity of the member to be measured is accurately obtained.

Description

technical field [0001] The invention relates to the field of bending stiffness testing of components under high and low temperature environmental conditions. Background technique [0002] Stiffness tests on structural parts are usually carried out at room temperature unless there are special requirements. Existing stiffness tests have many methods and structures according to different test requirements and application fields, but for components in high and low temperature environments Stiffness test, due to the deformation of test fixtures and loading mechanisms in high and low temperature environments, which will affect the loading of force, the measurement of moments and angles, and because of the overheating and cooling of the environment, most precision instruments or equipment for testing will It cannot be used normally and affects the testing work. [0003] At present, the bending stiffness test under high and low temperature is carried out in a high and low temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M5/00G01N3/18G01B11/16
Inventor 单晓杭周丹锋
Owner 沛县度创科技发展有限公司
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