Active-passive parallel input in-parallel attitude-adjusting vibration isolation platform

Abstract

The invention relates to an active-passive parallel input in-parallel attitude-adjusting vibration isolation platform. The active-passive parallel input in-parallel attitude-adjusting vibration isolation platform mainly comprises a movable platform, a fixed platform and three active-passive parallel input branches which are identical in structure and connected with the two platforms. The active-passive parallel input branches comprise drivers and elastic damping units. One ends of the active-passive parallel input branches are connected with the fixed platform, and the other ends of the active-passive parallel input branches are connected with the movable platform through cylindrical pairs. According to the active-passive parallel input in-parallel attitude-adjusting vibration isolation platform, the drivers and the elastic damping units are arranged in parallel to form a rigid-flexible coupling three-degree-of-freedom parallel platform which is integrated with active attitude adjusting and passive vibration isolation, and the active-passive parallel input in-parallel attitude-adjusting vibration isolation platform is applied to multi-dimensional attitude adjusting and vibration isolation of carrier instruments and equipment of vehicles, ships and the like; and attitude disturbance and vibration of the carrier instruments and equipment can be compensated simultaneously, the configuration is simple, the structure is compact, and compensation of attitude disturbance and vibration of the carrier instruments and equipment is easy to achieve.

Description

technical field [0001] The invention relates to a parallel mechanism, in particular to an active attitude adjustment and passive vibration isolation integrated parallel platform. Background technique [0002] Affected by external environmental conditions, vehicles, ships, etc. will produce multi-degree-of-freedom movements such as roll, pitch, sway, surge and heave during driving, accompanied by medium and high frequency vibrations. Substantial pose changes and reciprocating vibrations seriously affect the performance of carrier instruments and equipment, and even damage the instruments and equipment, causing heavy losses. For example, weapon systems in actual combat are often in complex environments, and the resulting pose changes and vibrations will affect the aiming, tracking, and firing accuracy of the weapon system, making it difficult to meet the needs of modern operations. Therefore, it is necessary to take certain measures to eliminate interference and provide a rel...

AI Technical Summary

Problems solved by technology

Patents CN105539304A and CN105563466A respectively propose a posture-adjusting vibration-isolation platform with closed-loop sub-chains. Linear motors are used for active posture compensation, and vibration isolators are connected in series in branches for passive vibration isolation. The bearing capacity and dynamic characteristics of the platform are controlled by the series Limitations of Vibration Isolators

Patent CN104924293A proposes a parallel attitude adjustment and vibration isolation composite platform, which realizes the movement of the moving platform by driving the moving pair, and passively isolates the vibration of the moving platform through the spring. After the active drive of the mechanism is locked, the moving platform is actually in a fully restrained state , the passive vibration isolation of the spring branch chain cannot fully play its role

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