Axial motion sealing device for gas detonation-driven ultra-high-speed launcher

Abstract

The invention discloses an axial movement sealing device for a gas detonation-driven ultra-high-speed launch device. The launch tube is supported by a launch tube walking structure and an aligning support. The launch tube walking structure includes a track, a supporting trolley and a walking oil cylinder. Straight-line horizontal erection, the supporting trolley is clipped on the track, the supporting trolley is connected with the traveling oil cylinder, and the supporting trolley is driven to walk along the track through the traveling oil cylinder; the self-aligning bracket is fixedly installed on the track, and the launch tube is placed horizontally and runs through the supporting trolley, The self-aligning support is connected with the test chamber, and the concentricity between the launch tube and the test chamber is controlled by the supporting trolley and the self-aligning support. Through the working principle of the present invention, the sealing effect in the axial direction under dynamic conditions is achieved. The bevel angle of the brass sealing ring ensures that the O-ring has sufficient deformation and extrusion space in the axial direction, so that the sealing effect can be ensured. At the same time, the life of the O-ring is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of ultra-high-speed projectile / model testing experimental equipment, and in particular relates to an axial motion sealing device used for a gas detonation-driven ultra-high-speed launching device. Background technique [0002] A ballistic target is a launching system that launches a test model or projectile to a certain speed and can measure its aerodynamic characteristics and collision characteristics. According to different firing methods, it is divided into single-stage guns and multi-stage guns, among which multi-stage guns are mainly secondary guns. Ballistic targets were initially used to test the flight and lethality of bullets or artillery shells. In recent years, the continuous development of experimental research on the aerodynamic characteristics of various hypersonic vehicles, the resistance of materials to particle cloud erosion, and high-speed / ultra-high-speed collisions has greatly promoted t...

AI Technical Summary

Problems solved by technology

[0004] Existing axial seals often use a labyrinth structure or a combination of O-rings and fasteners. This structure can achieve a better axial sealing effect and is mostly used for pressure pipeline connections, turbine machinery rotating shafts, etc. Sealing, but it is difficult to achieve the sealing effect under the condition of forward and backward movement in the axial direction

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