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Method for correcting bending deformation of thin and long thin walled pipe under gravity force

A thin-walled tube and slender technology, which is applied in the direction of supporting machines, mechanical equipment, machine tables/supports, etc., can solve problems such as bending deformation and bending deformation of slender tubes, and achieve low cost, simple structure, and operability strong effect

Active Publication Date: 2010-06-02
AVIC CHENGFEI COMML AIRCRAFT COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the slender tube is prone to bending deformation under the action of gravity, and to provide a method with simple structure, strong operability and low cost, which can effectively solve the bending deformation of the slender tube

Method used

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  • Method for correcting bending deformation of thin and long thin walled pipe under gravity force
  • Method for correcting bending deformation of thin and long thin walled pipe under gravity force
  • Method for correcting bending deformation of thin and long thin walled pipe under gravity force

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Embodiment Construction

[0009] refer to figure 1 , figure 2 . figure 1 An embodiment of a rectangular bracket composed of two longitudinally elongated rectangular thin-walled tubes and two end beams is described. figure 2 Embodiments are described in which a single slender thin-walled tube corrects for buckling deformation. At least one rigid round steel 2 with threads at both ends runs through the bottom of the rectangular section wall of the elongated thin-walled tube 3; the round steel 2 is close to the bottom surface of the inner cavity of the rectangular thin-walled tube. Each of the sealing flanges 4 fixedly connected to the two ends of the slender thin-walled pipe 3 has a fastening hole through which the round steel 2 can pass through. The flange fastening hole is corrected by tightening the nuts 1 at both ends.

[0010] Because the deflection of the slender and thin-walled rectangular tube beam is related to the load condition, support condition, span length, sectional moment of inertia...

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Abstract

The invention relates to a method for correcting the kickdown distortion of slender thin-wall pipes owing to gravity. The invention comprises a slender thin-wall rectangular pipe; at least one rigid round bar, the two ends of which is provide with screw threads, runs through near the bottom pipe wall in an inner cavity of the slender thin-wall rectangular pipe along the length direction of the pipe. The rigid round bar passes through the closing flange clamp hole which is fixedly connected with the two ends of the slender thin-wall rectangular pipe and is corrected by fastening the nuts at thetwo ends. The invention can overcome the kickdown of the slender thin-wall pipes by the following steps: the rigid round bar is tightly strained by fastening the screw threads at the two ends of theslender thin-wall rectangular pipe, which forces the middle part of the slender thin-wall rectangular pipe to bend upwards; the bending degree balancing out the downwards bending degree, thereby correcting the kickdown distortion of slender thin-wall pipes owing to the gravity.

Description

technical field [0001] The invention relates to a method for correcting the bending deformation of a slender and thin-walled pipe fitting under gravity. Background technique [0002] In the prior art, the rectangular bracket supporting large components is usually a rectangular frame without any reinforcement support in the middle consisting of two longitudinally slender rectangular thin-walled pipes and two end beams. The two longitudinal slender pipe fittings k may be rectangular pipes with a length of more than 10 meters, a cross section of 100mm×100mm, and a wall thickness of 5mm. The slender thin-walled rectangular tube has a large bending deformation due to its own weight, and then carries a large component in the middle of the slender tube. Under the action of gravity, the bending deformation of the slender tube is even more serious, which affects the bearing rigidity and precision. Contents of the invention [0003] The purpose of the present invention is to solve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16M11/00
Inventor 黄中平熊丽萍
Owner AVIC CHENGFEI COMML AIRCRAFT COMPANY
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