The temperature self-adaptive device for the connection interface of the launch box

Abstract

The invention provides a temperature self-adaptive device for a launch box connection interface, belonging to the technical field of missile launching, comprising a launch box, a combination assembly and a launch frame, and the combination assembly includes a first connection frame and a second connection frame , and also includes a plurality of cylindrical pins, one end of the plurality of cylindrical pins is installed on the launch frame, and the other end of the plurality of cylindrical pins is matched and installed on the first coupling frame and / or the second coupling frame, so The first coupling frame is provided with a waist-shaped hole, the second coupling frame is provided with a circular hole, and the other ends of the plurality of cylindrical pins are matched and installed on the waist-shaped hole and / or the circular hole. The disadvantage of the prior art is that within the operating temperature range, the installation operation of the joint interface between the launch box and the launch frame is smooth and free from jamming, and the safety of the joint interface structure is ensured.

Description

technical field [0001] The invention relates to the technical field of missile launching, in particular, to a temperature self-adaptive device for a joint-assembly interface of a launch box. Background technique [0002] In order to meet the requirements of lightweight, the launch box at home and abroad mostly uses lightweight materials (such as aluminum alloy and composite materials, etc.), but the launcher is mostly made of steel to meet the load-bearing requirements. In view of the long length of the launch box and the launch frame and the large difference in the linear thermal expansion coefficient of the materials, when the operating temperature changes greatly, there must be obvious differences in the deformation of the two. [0003] At present, there are three main types of connection interfaces between the launch box and the launch frame: the first one uses four sets of trapezoidal bosses and trapezoidal grooves to connect and locate, with a rectangular distribution ...

AI Technical Summary

Problems solved by technology

In the first two connection positioning methods, there is no adjustment margin for self-adaptive deformation in the length direction. When the operating temperature changes greatly, it is easy to cause the installation operation to be stuck and generate internal stress at the connection, which is not conducive to ensuring the safety of the structure. The third Although there is a margin for adaptive deformation adjustment in the length direction, it requires high precision for the mutual installation between the rear cylindrical pin and the cylindrical pin hole, the front rectangular boss and the rectangular slot, and the rectangular boss and the rectangular slot are easy to deform during the deformation process. There is a problem of stagnation, and internal stress is also likely to be generated at the connection, which is not conducive to ensuring the safety of the structure

[0004] Patent document CN206818061U discloses a simple and portable launcher body for water rockets, including a base, an air intake pipe and a pressure gauge, the top middle of the base is bolted to a fixed plate; the upper surface of the right half of the base is provided with a Cavity B; the right side surface of the base is fixedly connected with a handle; the front of the fixed plate is provided with a box, and the box is a raised structure and opened on the upper surface of the base; the box is fixedly connected to the fixed The center of the upper surface of the board, but because the launch box is fixed by bolts to fix the board, when the operating temperature changes greatly, the installation and disassembly are often not smooth

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