Portable double-stand-column double-beam press-in instrument suitable for laboratory and field tests

Abstract

The invention provides a portable double-stand-column double-beam press-in instrument suitable for laboratory and field testing. A protective cover is installed outside the portable press-in instrument and used for protecting the internal structure of the press-in instrument, a window capable of being opened and closed is formed in the front face of the protective cover, and a user can conveniently check and operate the internal structure of the press-in instrument; the press-in instrument main machine comprises a handle, an upper beam, a left stand column, a right stand column, a voice coil motor module, a lower beam, a pressing head assembly, a dovetail groove moving platform, a pressing device and a press-in instrument base. the handle is connected and installed on the upper beam through bolts, four threaded holes are formed in the middle of the upper beam and used for connecting THE voice coil motor module, stepped holes are formed in two sides and used for installing and fixing the left and right stand columns, the upper ends of the stand columns are rigidly connected with the upper beam through nuts, and the lower ends are connected with a sliding table of the dovetail movingplatform through hexagon nuts. The machine frame is small in flexibility and good in testing stability, meanwhile, the three-dimensional in-situ observation system capable of being finely adjusted and the mobile platform with the adjustable measuring point position are integrated, and continuous online nondestructive testing can be conducted on a tested structure under the working conditions of alaboratory and a field / field.

Description

technical field [0001] The invention belongs to the field of material mechanical performance testing, and in particular relates to a portable indenter with double columns and double beams suitable for laboratory and field testing. Background technique [0002] Instrumented indentation technology is a new material mechanical property testing technology developed on the basis of traditional Brinell hardness and Vickers hardness tests. In the indentation test, this technology measures and records the indentation load and indentation depth acting on the sample in real time, and combines the corresponding mechanical analysis methods to calculate the relevant mechanical parameters of the tested material. Such as elastic modulus, hardening index, yield stress, etc. Compared with the traditional hardness test, the instrumented indentation technology can obtain more mechanical properties of the material, which provides an important technical means for identifying the basic mechanica...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies of the existing portable indenter with large frame flexibility, poor test stability, and difficulty in realizing rapid in-situ observation and continuous testing, the present invention provides a frame with small frame flexibility, good test stability, and applicable Portable indentation instrument for field / field testing

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