Sample clamping device for high-temperature high-frequency complicated load loading test

Abstract

The invention relates to a sample clamping device for a high-temperature high-frequency complicated load loading test, and belongs to the technical field of material testing. The sample clamping device is composed of a left clamp and a right clamp which are same in structure; in the left clamp or the right clamp, an outer ring of a sleeve is matched with an inner ring of a knuckle bearing or a clamping part of a standard plate-shaped sample, is fixed through a quick-change baffle ring and is mounted on a supporting seat; an inner ring of the sleeve is provided with a thread, and is screwed with an outer thread section of a high-temperature high-frequency complicated load sample to realize the fixation of the high-temperature high-frequency complicated load sample; the bottom of the supporting seat is provided with four through holes, and is mounted on a tensile bending composite fatigue testing machine through bolts; and a tensile loading device on the testing machine is connected withthe supporting seat through bolts to realize the static tensile loading of the high-temperature high-frequency complicated load sample. The sample clamping device has the advantages as follows: the sample clamping device can be applicable to a material testing machine with loading functions of high temperature, tension, bending, ultrasonic vibration and the like; the sample clamping device is simple in structure and convenient in operation; and a powerful guarantee is provided for testing the mechanical properties of key structure materials in the fields of aviation, spaceflight and the like.

Description

technical field [0001] The present invention relates to the technical field of material testing, in particular to a sample clamping device for high-temperature, high-frequency and complex load testing, so that the material testing machine can operate at high temperature (room temperature ~ 1100°C), high frequency (ultrasonic vibration), complex The mechanical properties of the test materials under the load (tensile-bending composite loading) conditions are close to the service conditions, providing a strong guarantee for the mechanical properties of key structural materials in the fields of aviation and aerospace. Background technique [0002] In key fields such as aviation and aerospace, certain key structural materials are usually served under complex loads, such as aeroengine blades, which are affected by the combined effects of tensile and bending loads and high-frequency vibrations of thousands of Hertz, and at the same time bear up to The high temperature of thousands ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a sample clamping device for high temperature and high frequency complex load loading test, which solves the above-mentioned problems in the prior art

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