X-shaped throttling mechanism with connecting rod sliding groove

Abstract

The invention discloses an X-shaped throttling mechanism with a connecting rod sliding groove, and particularly relates to the technical field of experimental aerodynamics. Comprising a suspended supporting table, a linear motor is arranged on the supporting table, a moving rod is connected to the linear motor, a first connecting rod is rotationally connected to one side of the moving rod, a first sliding groove is formed in the other side of the moving rod, and a second connecting rod rotationally connected with the first connecting rod is slidably connected to the first sliding groove; the second connecting rod is rotationally connected with a supporting seat fixedly arranged on the supporting table, the other end of the second connecting rod is rotationally connected with a throttling connecting rod, the throttling connecting rod is provided with a second sliding groove in sliding connection with the first connecting rod, and the first connecting rod is rotationally connected with a fixing seat fixedly arranged on the air inlet model support. A throttling cone is arranged at the end, away from the second sliding groove, of the throttling connecting rod. By adopting the technical scheme, the problem of motor failure caused by direct scouring of high-temperature and high-speed airflow to the throttling device is solved, and the method can be used for accurately evaluating the influence of back pressure on the performance of the air inlet channel.

Description

technical field [0001] The invention relates to the technical field of experimental aerodynamics, in particular to an "X" type throttling mechanism with a connecting rod chute. Background technique [0002] The airway is the pneumatic part of the actuator system, and its level directly affects the performance of the aircraft and even the normal operation of the actuator. As one of the Qi properties of the airway, it is an important indicator of the airway level. [0003] In the study of airway spontaneous performance in the cave, the throttle is usually used to change the airway's reaction, and the airway's resistance is obtained by opening the hole, and the airway's spontaneous performance is obtained according to the airway's resistance. [0004] At present, the throttling cone scheme is mainly used in the throttling of the outer air passage. The inlet duct model is installed in the uniform air flow area of ​​the wind tunnel test section through the model base, and is arr...

AI Technical Summary

Problems solved by technology

[0009] The present invention intends to provide an "X" type throttling mechanism with a connecting rod chute, which solves the problem of motor failure caused by direct washing of the throttling device by high-temperature and high-speed airflow

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