Angular vibration platform

Abstract

The invention relates to an angular vibration platform comprising a seat body, a rotary support member and an objective table fixed on the rotary support member; a right part of the rotary support member is connected with the seat body via a first flexible hinge, a rotation axis of the first flexible hinge is arranged along a vertical direction, a connection block is arranged between a left part of the rotary support member and the seat body, the connection block is connected with the left part of the rotary support member via a flexible transmission structure, the connection block is connected with the seat body via a guiding mechanism, a voice coil performer is fixedly mounted on the seat body, an output end of the voice coil performer is fixedly connected with the connection block, the voice coil performer drives the rotary support member to do fixed axis rotation movement around the rotation axis of the first flexible hinge via a flexible transmission structure, and an upper surface of the objective table is perpendicular to the rotation axis of the first flexible hinge. The angular vibration platform is advantaged by compact structure, stable operation, high test precision, convenient processing, convenient installation and the like.

Description

technical field [0001] The invention relates to vibration testing equipment, in particular to an angular vibration table. Background technique [0002] The angular vibration table is the key test equipment for testing the dynamic performance and anti-angular vibration interference ability of inertial devices and navigation equipment. With the continuous improvement of the dynamic performance and precision of inertial devices and navigation equipment, the requirements for the angular vibration table are also increasing, which requires the angular vibration table to have a higher excitation frequency, a larger stroke, and a smaller waveform distortion. The flexible hinge has the advantages of no gap and friction, no lubrication, and no wear. The voice coil motor has the advantages of simple structure, high precision, and fast response. Combining the two, a precision angular vibration based on the flexible hinge and voice coil motor is designed. The table, which can meet the n...

AI Technical Summary

Problems solved by technology

Most of the existing angular vibrating tables based on flexible hinges and voice coil motors are directly connected to the voice coil motor and the table through rigid components, which have the problems of large voice coil motor load and low displacement execution accuracy; The problem of poor ability, and because the table surface is parallel to the rotation axis, it is difficult to align the rotation axis of the tested part with the rotation axis of the angular vibration table during use, and the size of the tested part is limited, etc.

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