Connector structure for double-stage synchronous vibration

Abstract

A joint structure for double-stage synchronous vibration, characterized in that it includes a single hinge joint and a double hinge joint for use in pairs, or two double hinge joints for use in pairs; the single hinge joint includes a first The base and the first work surface, the first work surface has a first bearing plane, the first work surface is connected to the first base through a first hinge; the double hinge joint includes a second base, a connecting rod and a second work surface, The second working surface has a second bearing plane, the second working surface is connected to the bottom of the second base through the connecting rod, the second base has two facing side walls arranged at intervals, the connecting rod is arranged between the two side walls, The upper end of the connecting rod is connected with the second work surface through the second hinge, the lower end of the connecting rod is connected with the bottom of the second base through the third hinge, and the second hinge is arranged parallel to the axis of the third hinge; Limiting structures are arranged on both sides of the connecting rod to limit the swing angle of the connecting rod.

Description

technical field [0001] The invention relates to the field of environmental mechanics test equipment, in particular to a connector structure for double-stage synchronous vibration tests of slender rods. Background technique [0002] Mechanical environment test—vibration test is mainly used to simulate the environment where the product is subjected to vibration during use, loading and unloading and transportation, so as to determine the adaptability of the product to various vibrations. Through such a vibration test, the integrity of a product structure and the rationality of the working performance index parameters can be assessed, providing a reasonable basis for assessing the quality of the product. Vibration testing is commonly used in precision products such as aerospace, but also in automotive components and instrumentation electronics. [0003] For the vibration test of slender rods, due to the limitation of the table surface of the vibration table, the double-table pa...

AI Technical Summary

Problems solved by technology

The above-mentioned structure has the following defects: since the load-carrying capacity of the elastic connector 32 and the structural rigidity are a pair of contradictions, it is difficult to meet the requirements of the two aspects, and there is a certain amount of lateral pull on the long test piece 5 in the length direction of the vibrating table body. The force will cause some damage to the vibrating table body

However, since the two connectors are double-spherical hinge connectors 41, they can fall to either side within the spherical angle, resulting in the defect of being unable to stand upright.

Generally, the user uses one or two elastic tension ropes 42 to hang the long test piece 5 during the test to reduce the annoying vibration of random swing, and superimpose many components in other directions on the standard vertical vibration. Reduced the fidelity of the test; Sometimes the suspension frame 43 of the elastic tension rope 42 must be temporarily supported, which increases the extra workload

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