Wind tunnel test model assembly and disassembly assistance system

Abstract

The invention discloses a wind tunnel test model assembly and disassembly assistance system comprising a movable model part and a second connecting substrate mounted thereon, a fixed model part and a first connecting substrate mounted thereon. A screw is arranged between the two connecting substrates. The thread directions at the joints of the screw and the two substrates are different so that the rotation of the screw drives the two connecting substrates to move to each other. According to the invention, the thread directions at both ends of the screw are different from each other and the thread directions of the two substrates are also different from each other so that the two substrates can be moved in the same direction or in the opposite direction when the screws are rotated in different directions. The various parts of the wind tunnel test model assembly and disassembly assistance system are simple in appearance, convenient in installation and simple in operation. An actual operation shows that the assembly and disassembly of the wind tunnel test model becomes time-saving and labor-saving and does not cause any damage to the model.

Description

technical field [0001] The invention relates to the field of aerodynamics, in particular to a system for installing and dismounting various parts of a wind tunnel test model. Background technique [0002] The wind tunnel test model is generally composed of parts such as the nose, the middle fuselage, and the rear fuselage. In order to ensure the reliability of the connection of each part, the model designer will design a certain length of the joint at the connection part, and use a gap between the two parts. Small tight fit. This structural form makes the assembly and disassembly of the model more difficult, such as figure 1 Shown: In order to install the first model part (considered as the movable part) to the lip section on the second model part (considered as the fixed part), it is usually necessary to tap the first model part with a tool such as a rubber hammer to make it along the The seam section moves forward and approaches the second model part, and finally makes t...

AI Technical Summary

Problems solved by technology

This structural form makes the assembly and disassembly of the model more difficult, such as figure 1 Shown: In order to install the first model part (considered as the movable part) to the lip section on the second model part (considered as the fixed part), it is usually necessary to tap the first model part with a tool such as a rubber hammer to make it along the The seam section moves forward and approaches the second model part, and finally makes the end surfaces of the two parts contact, and then fastens them with pins and screws; similarly, in order to disassemble the first model part from the second model part, the two parts are separated , you have to insert the screw into the screw hole of the movable part, use a hammer to hit the screw, and the screw drives the first model part to move out of the stop section of the second model part in the opposite direction

This assembly and disassembly method is not only time-consuming and labor-intensive, but also highly dependent on the practical experience of the operator; in addition, it will cause certain damage to the model surface and screw holes, and reduce the assembly accuracy between the various parts of the model

Images