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Fatigue test tool

A technology of fatigue testing and tooling, which is applied in the direction of measuring devices, testing of mechanical components, testing of machine/structural components, etc. It can solve the problems that the product cannot be installed as a whole, and achieve the effects of being convenient for fatigue testing, easy to use, and preventing falling off

Pending Publication Date: 2020-08-14
深圳亚太航空技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Limited by the size of the tail beam folding locking device, the product cannot be installed on the fatigue testing machine as a whole, and the fatigue test can only be performed on the lock pin of the tail beam folding locking device separately

Method used

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Examples

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Embodiment Construction

[0019] The following examples are further explanations and supplements to the present invention, and do not constitute any limitation to the present invention.

[0020] Such as Figure 1 ~ Figure 4 As shown, the fatigue test fixture of the present invention includes a single ear piece 10 , a double ear piece 20 , a fixing block 30 and a bolt assembly 40 . The single ear piece 10 and the double ear piece 20 are plugged together, and they are respectively provided with a first shaft hole 13 and a second shaft hole 23 where the lock pin 50 can be inserted coaxially, and the fixing block 30 is detachable through the bolt assembly 40 is installed on the ear piece 20, and a limiting through hole 31 is provided on it for limiting the movement of the locking pin 50 in the axial direction.

[0021] Specifically, such as Figure 1 ~ Figure 4 As shown, the ear piece 20 includes a second threaded connection portion 21 and an ear portion 22 . The second threaded connection part 21 and t...

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PUM

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Abstract

provided in the invention is a fatigue test tool comprising a single-lug piece, a double-lug piece and a fixing block. The single-lug piece is provided with a first shaft hole; the double-lug piece and the single-lug piece are oppositely inserted, and a second shaft hole which can be coaxial with the first shaft hole is formed in the double-lug piece; the fixing block is detachably connected to the surface of one side of the double-lug piece, and a limiting through hole corresponding to the second shaft hole in position is formed in the fixing block; and the first shaft hole, the second shafthole and the limiting through hole form a mounting position for limiting and mounting a to-be-tested part. The first shaft hole and the second shaft hole are favorable for inserting a lock pin, and the fixing block can limit the lock pin to move in the axial direction of the shaft holes, so that positioning installation of the lock pin is guaranteed, and the lock pin can be prevented from fallingoff. The double-lug piece is provided with a nut groove, and a nut head of a bolt can be embedded in the nut groove, so that the single-lug piece is prevented from being interfered by the bolt; and the installation problem caused by the rotation of the bolt can be effectively solved in the installation process of the self-locking nut, and the installation convenience can be improved. The fatigue test tool is simple in structure and convenient to install, and facilitates a fatigue test.

Description

【Technical field】 [0001] The invention relates to a test tool, in particular to a fatigue test tool. 【Background technique】 [0002] With the continuous development of aviation technology, the requirements for aerospace structural parts are getting higher and higher. The tail boom folding locking device has the characteristics of light weight, small size, convenient operation, simple maintenance, and long service life, and is widely used in helicopters. Before the tail beam folding locking device is delivered to use, it needs to pass the factory inspection, and the products that pass the inspection can be put into use. The tail boom folding locking device needs to check whether the fatigue strength of its upper and lower locking pins meets the design requirements. Limited by the size of the tail beam folding locking device, the product cannot be installed on the fatigue testing machine as a whole, and the fatigue test can only be performed on the lock pin of the tail beam ...

Claims

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Application Information

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IPC IPC(8): G01M13/00G01N3/04
CPCG01M13/00G01N3/04G01N2203/0073G01N2203/04
Inventor 王乃文陈航栖
Owner 深圳亚太航空技术股份有限公司
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