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

An engine and frame technology, which is applied in the field of lightweight sidewall hanging vertical force transmission frames and first-class engines, can solve the problems of large difference in engine height and size, low structural utilization efficiency, and occupying cabin space, etc. Avoid the effects of low-efficiency structure, high thrust transmission efficiency, and short force transmission path

Active Publication Date: 2020-05-08
XIAN AEROSPACE PROPULSION INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0054] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0055] This embodiment is based on the general assembly layout of four machines, and provides a force transmission device with certain strength and rigidity, capable of withstanding a wide range of load changes, light in weight and high in efficiency, simple in structure and reliable in a limited space.

[0056] As the first-stage engine of the vertical take-off and landing reusable launch vehicle, a total of four engines with two large and two small engines are used to form a combined power. The engine installation is designed as a split frame, and the two large engines are fixed by the existing frame structure, and the two small engines with small height and thrust among the four machines are separately designed for power transmission; due to the large radial distance of the small engines, Each small engine is closer ...

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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...

Claims

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Application Information

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IPC IPC(8): B64G1/40
CPCB64G1/40
Inventor 宋亚轻吴涛吕发正王玫黄其殷成洁王柯
Owner XIAN AEROSPACE PROPULSION INST
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