Adjustable loading device and application method thereof

Abstract

The invention relates to an adjustable loading device. The adjustable loading device comprises a frame (5), a loading dolly (9) capable of moving left and right on the frame (5), and a clamping bench (1) used for clamping the workpiece (1) and fixed at the left end of the frame (5); wherein, an outer screw sleeve (7) is fixedly connected with the right side of the loading dolly (9) and used for stretching into a hollow part of a rotation shaft (6) and then enables screw thread cooperation with an inner screw thread ring part (71) at the left end of the rotation shaft (6), the right end of the rotation shaft (6) enables power connection with an output shaft of a driving motor (8) at the right side surface of a boss (51) of the frame (5), an electronic control apparatus (88) is arranged on a housing of the driving motor (8) and is electrically connected with the driving motor (8), the electronic control apparatus (88) is used for controlling the rotation speed of the driving motor (8), so that the rotation speed of the rotation shaft (6) is controlled according to the requirement.

Description

technical field [0001] The invention relates to the field of material testing equipment, in particular to an adjustable loading device and a using method thereof. Background technique [0002] The rigidity test of the material is an important index for the material performance of the workpiece. Materials may deform differently under different loads and thus exhibit different stiffness properties. Some existing testing equipment continuously applies gradually increasing loads to materials and measures the amount of deformation that occurs during the process. Due to the dynamic nature of load changes and the immediacy of measurement, this method is prone to cause measurement errors. For equipment with fixed value applied load, due to the discreteness of fixed value, it is difficult to obtain the point performance of expected value at any time. Moreover, slight fluctuations in the load are prone to occur during the hold of a fixed value, resulting in measurement errors. Mor...

AI Technical Summary

Problems solved by technology

Due to the dynamic nature of load changes and the immediacy of measurement, this method is prone to measurement errors

For equipment with fixed value applied load, due to the discreteness of fixed value, it is difficult to obtain the point performance of expected value at any time

Moreover, slight fluctuations in the load are prone to occur during the hold of a fixed value, resulting in measurement errors

And although some equipment can guarantee the measurement accuracy, the cost is high and the maintenance work is complicated

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