Vibration isolation device without angular displacement and its branch chain

Abstract

The invention relates to a non-angular-displacement vibration isolating device and a branch chain thereof. The branch chain comprises a first rotating pair, a second rotating pair, a third rotating pair and a fourth rotating pair, wherein the axis of the first rotating pair is perpendicular to the axis of the second rotating pair, the axis of the third rotating pair is perpendicular to the axis of the fourth rotating pair, the first rotating pair is connected with a movable platform, the fourth rotating pair is connected with a fixed platform, the axis of the second rotating pair is parallel to the axis of the third rotating pair, and the axis of the first rotating pair is parallel to the axis of the fourth rotating pair. The branch chain further comprises a fifth rotating pair and a sixth rotating pair, the axis of the fifth rotating pair and the axis of the sixth rotating pair are parallel to the axis of the second rotating pair, the second rotating pair is connected with the sixth rotating pair through a first connecting rod, the sixth rotating pair is connected with the third rotating pair through a second connecting rod, the third rotating pair is connected with the fifth rotating pair through a third connecting rod, the second rotating pair is connected with the sixth rotating pair through a fourth connecting rod, and the plane where the axis of the second rotating pair and the axis of the sixth rotating pair are located is parallel to the plane where the axis of the third rotating pair and the axis of the fifth rotating pair are located. The non-angular-displacement vibration isolating device capable of converting the angular displacement into linear displacement and the branch chain used in the non-angular-displacement vibration isolating device are provided.

Description

technical field [0001] The invention relates to a non-angular displacement vibration isolation device and its branch chain in the field of vibration isolation. Background technique [0002] With the development of aviation technology, the resolution requirements of photoelectric imaging systems are getting higher and higher. In many high-resolution aerial photoelectric imaging systems, although high-quality sensors are used, the image quality obtained is not ideal, which limits The main factor of high-resolution imaging is often not caused by electrical or optical systems, this image blur degradation is mainly caused by aviation vibration. The optoelectronic platform is a device installed on the aircraft or vehicle for the purpose of stabilizing photoelectric equipment, reconnaissance, search and rescue, etc. The optoelectronic platform uses the aircraft or vehicle as the carrier. In a series of complex and random vibration environments such as , wind resistance torque and ...

AI Technical Summary

Problems solved by technology

Compared with linear vibration, angular vibration will double the image shift of the camera system, reduce the image quality, and reduce the resolution of the optical system. Therefore, the impact of angular vibration on imaging quality is much greater than that of linear vibration. Not only that, the rotation of the optoelectronic platform caused by vibration will cause the coordinate system of the optoelectronic platform to rotate relative to the coordinate system of the aircraft, making the measurement of the optoelectronic platform with measurement function inaccurate and causing large measurement errors

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