Five-degree-of-freedom motion mechanism

Abstract

A five-degree-of-freedom motion mechanism comprises a U-shaped frame which is installed above a base through a horizontally-arranged linear guide rail and is driven by an X-direction hydraulic drivingdevice to move in the X direction. A Y-direction moving frame which is driven by a Y-direction hydraulic driving device to move in the Y direction is installed through four linear guide rails vertically arranged in the U-shaped frame. An alpha box body moving circumferentially in the beta direction is arranged on the Y-direction moving frame, is connected with the Y-direction moving frame throughan arc-shaped guide rail and a rotating shaft, and is driven by a beta hinge driving device arranged at the tail end of the alpha box body to move in the beta direction along the arc-shaped guide rail; an alpha direction moving block doing circular motion in the alpha direction is arranged in the alpha box body, is combined with the alpha box body through an arc-shaped guide rail, and is driven by two groups of alpha hinge driving devices arranged at the lower end of the alpha-direction moving block to finish doing alpha-direction motion along the arc-shaped guide rail; and the upper end of the alpha direction moving block is provided with a gamma direction circular motion gamma rolling mechanism driven by a gamma driving device through a bent knife supporting plate.

Description

Technical field [0001] The invention relates to a movement mechanism, in particular to a five-degree-of-freedom movement mechanism used to send a model into / out of a flow field and change the attitude angle of the model during a wind tunnel test. Background technique [0002] The wind tunnel angle of attack motion mechanism system is used as the supporting test equipment for the wind tunnel, which is mainly used to send the model into / out of the flow field and change the attitude angle of the model during the wind tunnel test. During the test, real-time display and recording of model posture, system displacement, etc. change data over time. [0003] At present, the motion mechanism used to send the model into / out of the flow field and change the attitude angle of the model during the wind tunnel test. The overall structure is mostly a closed box structure, and it is mostly used in key degrees of freedom such as α-degree-of-freedom transmission. Driven by rack and pinion or hydraul...

AI Technical Summary

Problems solved by technology

[0003] At present, the kinematic mechanism used to send the model into / out of the flow field and change the attitude angle of the model during the wind tunnel test, the overall structure mostly adopts a closed box structure, and the key degree of freedom such as α degree of freedom transmission is mostly used Driven by rack and pinion or hydraulic cylinder, this structure has poor maintainability and space openness, and the motion accuracy needs to be further improved

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