Light side wall suspended vertical force transmission rack and first-stage engine

Abstract

The invention provides a light side wall suspension vertical force transmission rack and a first-stage engine, and solves the problems that a rack is long and supporting assemblies are complex due tothe fact that the height of a large engine and the height of a small engine of an existing first-stage engine are greatly different, or the space of a cabin section is occupied. The rack comprises a cross joint, four main joints, four connecting rods, a first I-shaped beam, a second I-shaped beam and two dowel bars; wherein the four connecting rods are connected through the four main joints to form a rectangular frame; the four main joints are respectively a first main joint, a second main joint, a third main joint and a fourth main joint; two ends of the first I-shaped beam are respectively connected with the third main joint and the first interface of the cross joint; two ends of the second I-shaped beam are respectively connected with the fourth main joint and the second interface of the cross joint; the connecting rods and the two I-shaped beams form a first isosceles right triangle frame, and the included angle between the plane where the frame is located and the plane where the rectangular frame is located is 93 degrees; and one ends of the two dowel bars are respectively connected with the first main joint and the second main joint, and the other ends of the two dowel bars are connected with the cross joint.

Description

technical field [0001] The invention relates to the technology of a first-stage engine in a vertical take-off and landing and reusable rocket, in particular to a light-weight side wall hanging vertical force transmission frame and a first-stage engine. Background technique [0002] The frame is the basis of the layout of the first-stage engine assembly. It is the component that undertakes the connection, support and transmission of thrust between the engine and the rocket body. It also needs to bear bending moments and torques when the rocket body pitches, yaws, and rolls. The frame design principle of the first-stage engine requires simple structure, good manufacturability, open structure and strong bearing capacity. The frame frame is generally a truss-type structure, the upper and lower joints transmit force in parallel through the main load-bearing beam, and the auxiliary structure is welded by forgings or rods as a whole to relieve stress concentration or support. [0...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of the existing first-stage engine due to the large difference in height and size between the large and small engines, which makes the frame redundant and the supporting components redundant; or occupies the cabin space and has low structural utilization efficiency, the invention provides a lightweight side wall Suspended vertical force transmission frame and first-stage engine

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