Integral keel and skin composite self-propelled equipment capsule structure

Abstract

The invention discloses integral keel and skin composite self-propelled equipment capsule structure which comprises a keel which is formed through integral precise casting, wherein skin is covered on the surface of the keel; and the skin and the keel are fixedly connected. According to the invention, because the keel and the skin are formed respectively, large scale of products is easy to realize, at the same time, the stress of solidification contraction and thermal treatment process of the keel and the skin is not interfered in the implementation process, thus the revision is simple, and the residual stress is easy to remove; further, before the skin is assembled, the skin is assembled on the keel into an accessory, a more open technology channel and a visual condition are provided, on the basis of a complex and compact structure which can be realized is cast precisely, the structure is more optimized, and the assembly efficiency is higher; and in addition, the skin can be made of nonmetal and has reduced weight, thus effective load and volume are increased, and simultaneously, the invisible capability is improved.

Description

technical field [0001] The invention relates to the technical field of self-propelled equipment cabins, in particular to a composite self-propelled equipment cabin structure of an integral keel and skin. Background technique [0002] Self-propelled equipment refers to various equipment that rely on its own power to move in different media, including but not limited to: 1. Various aircraft, such as airplanes and missiles; 2. Various underwater equipment, such as submarines and torpedoes; 3. , Various land equipment, such as automobiles. Existing self-propelled equipment cabin structures all have the same problems in structural design and assembly means, and the aircraft rudder body is used as an example to illustrate below. Existing aircraft cabin body is made up of cabin section, and cabin section is by bulkhead, bulkhead, stringer, tendon, beam, frame etc. ) component assembly or overall molding is completed. Among them, in the prior art, the aforementioned assembly and ...

AI Technical Summary

Problems solved by technology

[0013] Although this method of integral molding with precision casting solves the above-mentioned problems existing in screw connection, riveting, welding, and sand casting machining, it is still difficult to exceed the overall size due to the limitation of the means of process realization, even if it is a world-class level. 0.6 meters, length 1.6 meters, skin thickness (under the aforementioned maximum size conditions) less than 0.002 meters, and the thinner skin thickness (less than 3 mm) and the overall solidification shrinkage of the frame, frame, beam, and reinforcement of the structure have a slight amount There are also stresses in the heat treatment process, resulting in large skin strain. Therefore, the straightness and waviness of the skin surface of the cabin (cabin section) need to be resolved by a more complicated correction process, and the residual stress is eliminated by a dimensional stabilization process.

Images