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Compression bar stabilization testing machine

A technology for stabilizing experiments and testing machines, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of limited operating space and limited observation space for students

Inactive Publication Date: 2007-11-14
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are upright guide columns on both sides of the currently popular electronic universal testing machine, and these two guide columns limit the operating space for measuring the lateral vibration and deflection of the specimen. Exciting operation) around the body greatly limits the observation space of students

Method used

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  • Compression bar stabilization testing machine
  • Compression bar stabilization testing machine

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Experimental program
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specific Embodiment approach 1

[0005] Specific embodiment one: referring to Figure 1, Figure 2, Figure 3, this embodiment includes a testing machine base 1, a force measurement system 2, a left mounting support system 3, a right mounting support system 4, a loading system 5 and a displacement sensor 6. The force measurement system 2, the left clamping support system 3, the right clamping support system 4, and the loading system 5 are sequentially installed on the test machine frame 1 along the horizontal axis of the frame 1, and the test piece 7 is moved from the left The clamping support system 3 and the right clamping support system 4 are clamped, and the displacement sensor 6 used to measure the deflection and lateral vibration of the test piece is arranged on one side of the test piece 7, which can be adjusted according to the actual situation of the experiment.

[0006] The left clamping support system 3 includes a left bracket 3-1 and a left clamping device 3-2, the left clamping device 3-2 is installed i...

specific Embodiment approach 2

[0009] The second embodiment: The difference between this embodiment and the first embodiment is that a hand wheel 5-3 is also installed at the left end of the input shaft of the mechanical reducer 5-2. Manually turning the hand wheel 5-3 can realize manual loading and To adapt to the needs of the sample assembly. During motorized loading, the handwheel can also display the direction of low-speed rotation of the motor, the speed of rotation and whether the rotation is even.

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Abstract

The invention relates to a compression bar stabilometer which can use the material mechanics or vibration mechanics method to measure critical force of the bar, which comprises Frame1, stress system2, left supporting system3, right supporting system4 loading system5, the apparatus 2-5 are set on frame1 along the horizontal axis, the displacement sensor6 measuring the test sample flexibility and lateral vibration is set on the one side of sample7. The signal of force cell sensor2-2 and displacement sensor6 is sent to the computer to process and get the critical force of the bar measured in material mechanics and vibration mechanics method. The test machine is horizontal which have no guide post, the flier can display the motor's slow running direction when loading.

Description

Technical field: [0001] The invention relates to a testing machine for measuring the critical pressure of a slender pressure rod, in particular to a testing machine that can measure the critical pressure of a pressure rod by a material mechanics method and a vibration mechanics method. Background technique: [0002] At present, the well-known method for measuring the critical pressure of a slender pressure rod is a material mechanics method, that is, the pressure is slowly applied along the axis of the slender rod, and the pressure when the balance of the pressure test piece loses stability is the critical pressure. However, the theoretical explanation of vibration mechanics can also use the vibration mechanics method to measure the critical pressure of a slender pressure rod, that is, measure the natural frequency of the lateral vibration of the slender pressure rod under different axial pressures, and then calculate it based on the data obtained from these multiple measurements...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/00G09B23/08
Inventor 陈明张秋华孙毅
Owner HARBIN INST OF TECH