Durable loading device for rigidity tests and using method of durable loading device

Abstract

A durable loading device for rigidity tests comprises a rack (5), a loading cart (9) capable of moving left and right on the rack (5), and a clamping table (11) fixed to the left end of the rack (5) and used for clamping a workpiece (1). An external thread sleeve (7) is fixedly connected to the right side of the loading cart (9) and used for stretching into the hollow interior of a rotating shaft (6) to be in threaded fit with an internal thread ring part (71) at the left end of the rotating shaft (6), the right end of the rotating shaft (6) is in power connection with an output shaft of a driving motor (8) installed on the right side face of a boss (51) of the rack (5), two rolling wheel assemblies (91) are installed on the lower side of the loading cart (9) from left to right, and each rolling wheel assembly (91) comprises a rolling wheel installed with a unilateral bearing and used for being jointed with the rack (5).

Description

technical field [0001] The invention relates to the field of material testing equipment, in particular to a durable loading device for rigidity testing and a usage 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 measure...

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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