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Part installation tool

A technology for installing tools and parts, which is applied in the field of liquid rocket engine assembly, can solve the problems of damaged welded bellows, damping band jamming, and inability to ensure the alignment of assembly relations, etc., and achieves the effects of small size, simple assembly, and light weight

Pending Publication Date: 2019-06-25
BEIJING XINGJI RONGYAO SPACE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inner diameter of the groove of the shell is relatively narrow, and the alignment of the assembly relationship cannot be guaranteed when the welded bellows, damping band and shell are assembled, and the technical problems of damping band sticking and damage to the welded bellows are prone to occur

Method used

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  • Part installation tool
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Embodiment 1

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Such as Figure 1-Figure 6 as shown, figure 1 Schematic diagram of the structure of the parts installation tool provided by the present invention; figure 2 It is a schematic diagram of the assembly relationship mentioned in the present invention; image 3 Schematic representation of the split chuck provided for the present invention Figure 1 ; Figure 4 Schematic representation of the split chuck provided for the present invention Figure II ; Figure 5 A schematic diagram of the base provided by the present invention; Image 6 Schematic diagram of the mandrel provided for the present invention. The present invention provides a component installation tool, comprising a base 20, a plurality of split chucks 10 and a mandrel 30, wherein the base 20 has a threaded hole 21, the mandrel 30 has an external thread, and the mandrel 30 ...

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Abstract

The invention relates to a part installation tool which comprises a base, multiple sectioning chucks and a mandrel. A threaded hole is formed in the base; the multiple sectioning chucks are arranged on the first surface of the base, can move along the radial direction of the base and are of sector structures; a first notch is arranged on the inner corner part of each sectioning chuck; the first notches of the multiple sectioning chucks enclose to form a holding cavity; the holding cavity is located above the threaded hole; the mandrel is in threaded connection with the base; and a circular truncated cone-shaped extrusion head is arranged at the first end of the mandrel and is located in the holding cavity. According to the technical scheme, a damping tape can be pre-opened, so that a sufficient space is provided for the installation of a welded bellow, a correct assembling relationship is realized on a shell, the damping tape and the welded bellow, the assembling quality is improved, and the part installation tool has the advantages of light weight, small size, easiness in processing, simplicity in assembling and the like.

Description

technical field [0001] The invention relates to the technical field of liquid rocket engine assembly, in particular to a component installation tool. Background technique [0002] Liquid rocket engine refers to liquid propellant rocket engine, that is, a chemical rocket propulsion system that uses liquid chemical substances as energy and working medium. There are mainly two types of start-up methods for liquid rocket engine turbopumps, one is self-starting by the pressure of the storage tank, and the other is the so-called external energy start-up that uses a kind of energy to promote the turbopump. [0003] During the working process of the liquid rocket engine, it will generate violent vibrations. Among them, the vibration frequency of the mechanical seal of the welded bellows of the liquid rocket engine is between 200Hz and 1700Hz. In order to avoid the resonance between the welded bellows and the liquid rocket engine system, resulting in the failure of the mechanical se...

Claims

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Application Information

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IPC IPC(8): B25B27/00
Inventor 不公告发明人
Owner BEIJING XINGJI RONGYAO SPACE TECH CO LTD
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