Vector spray pipe parallel-connection driving mechanism

Abstract

A vector spray pipe parallel-connection driving mechanism comprises a parallel-connection mechanism and an adjusting plate mechanism. The parallel-connection mechanism comprises a ball pipe seat, three SPS type branches and a ball sleeve. The ball pipe seat and the ball sleeve are connected in a ball pair mode, the three SPS type branches are circumferentially and uniformly distributed between the ball pipe seat and the ball sleeve, and the two ends of each SPS type branch are connected with the ball pipe seat and the ball sleeve in a ball pair mode correspondingly. The adjusting plate mechanism comprises a ball sleeve, a conical sliding sleeve, three distance adjusting sets and a plurality of adjusting plates, and the distance adjusting sets and the adjusting plates are circumferentially and uniformly distributed between the concave ball sleeve and the conical sliding sleeve; and the distance adjusting sets comprise motors and lead screws, the motors are fixedly connected with the corresponding ball sleeve, motor shafts are in same shaft key connection with one ends of lead screws, the other ends of the lead screws are in threaded connection with the conical sliding sleeve, and the corresponding ball sleeve is in rotary pair connection with the adjusting plates. According to the vector spray pipe parallel-connection driving mechanism, a vector spray pipe is large in swing angle, simple in structure and easy to control, the multiple adjusting plates forming the vector spray pipe can achieve axially-symmetrical contraction and expansion movement, and the rectifying action and airtightness are good.

Description

technical field [0001] The invention belongs to the field of aviation technology, in particular to a vector nozzle of a vector engine. Background technique [0002] For a long time, the take-off and landing of fixed-wing propeller aircraft requires a certain sliding distance, the maneuverability is poor, and the practicability is subject to many restrictions. In recent years, vector engines can overcome the above disadvantages. One of the main differences between a vectoring engine and a fixed-wing propeller engine is the use of a vectoring nozzle. In this regard, the 2016 invention patent with the publication number CN104847529B is based on a three-degree-of-freedom vector thrust system of a new type of aerodynamic vectoring nozzle, and discloses a bypass-type passive double-throat vectoring nozzle with a reverse thrust function. The invention patent with publication number CN101962078B in 2015 discloses an aviation propeller vector engine, which uses a universal power tr...

AI Technical Summary

Problems solved by technology

[0003] At present, the driving structure of the aerodynamic vectoring nozzle is relatively complex, the rotation angle is small, the flexibility is poor, and the control is more complicated. When the rotation angle is relatively large, the multiple adjustment plates constituting the vectoring nozzle are difficult to achieve axisymmetric convergence and expansion adjustment, resulting in rectification and sealing. poor sex

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