Three-axial vibration composite testing apparatus

Abstract

A triaxial vibration composite testing device is provided with a worktable, and is characterized in that both a horizontal X-axis second axial transmission-vibration mechanism and a horizontal Y-axis third axial transmission-vibration mechanism are cross linear guide rail pairs, while a first axial transmission-vibration mechanism vertical to Z-axis comprises an upper clamp plate, a lower clamp plate and a central panel, wherein the upper clamp plate and the lower clamp plate are aligned vertically and arranged horizontally, the central panel is positioned between the upper clamp plate and the lower clamp plate, the upper clamp plate and the lower clamp plate oppositely clamp the central panel, the lower surface of the upper clamp plate and the upper surface of the central panel are in clearance fit to form an upper fit plane, the upper surface of the lower clamp plate and the lower surface of the central panel are in clearance fit to form a lower fit plane, and high-pressure oil is pumped into gaps of the upper fit plane and the lower fit plane to form static-pressure oil films so as to form a static-pressure plane bearing mechanism. The invention can further improve performance (working frequency in particular), improve capability of resisting capsizing moment, simplify structure, and lower manufacturing difficulty and cost.

Description

technical field [0001] The invention relates to mechanical environment test equipment, in particular to a X, Y, Z three-axis vibration composite test device. The three-axis vibration compound test device can be used to simulate the vibration environment in which the three axes of X, Y, and Z act independently, and can also be used to simulate the compound vibration environment in which the three axes of X, Y, and Z act simultaneously. Background technique [0002] The natural vibration experienced by the product under actual working conditions is the composite vibration of the X, Y, and Z axes. In order to truly reflect the anti-vibration performance of the product and simulate the natural vibration environment, people have tried to design a three-axis vibration composite test device for many years. [0003] At present, there are many kinds of three-axis vibration composite test devices at home and abroad. The structure of these test devices is as follows: including a worki...

AI Technical Summary

Problems solved by technology

[0008] 1. In terms of manufacturing, since the three axes adopt hydrostatic bearing structure, the structure is relatively complex, and the processing requirements of each matching plane are high and difficult, and the manufacturing cost is high

[0009] 2. In terms of vibration test performance, because the middle cube 7 of a certain height needs to be set under the working table 1 to arrange the pressure application plate 8, this increases the distance from the working table 1 to the vibration generator 2 on the vertical axis (that is, raising The working surface 1) has been affected to a certain extent; because the middle cube 7 and multiple pressure application plates 8 need to be set under the working surface 1, the quality of the moving parts has been increased; the rigidity is poor and the mass of the moving part is large. These two points directly limit the further improvement of the working frequency; moreover, the elevation of the working surface 1 also directly leads to the decline of the ability to resist overturning moment

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