CN103529119B - Improve the device of magnetic testing sensitivity of aviation engine blade - Google Patents
Improve the device of magnetic testing sensitivity of aviation engine blade Download PDFInfo
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- CN103529119B CN103529119B CN201310485932.5A CN201310485932A CN103529119B CN 103529119 B CN103529119 B CN 103529119B CN 201310485932 A CN201310485932 A CN 201310485932A CN 103529119 B CN103529119 B CN 103529119B
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Abstract
The invention discloses a kind of device of the raising magnetic testing sensitivity of aviation engine blade of offer, its composition mainly includes：For the fixed base plate being placed in fitting device in magnetic inspection equipment bed body, it is placed on fixed base plate and holds joint for handling the tenon of tested blade tenon one end, blade tip for handling tested blade tip one end holds joint, and be placed in tenon and hold joint for increasing the extension plate of tested blade draw ratio, the installation direction of extension plate is opposite with the installation direction of tested blade, tenon holds joint and holds joint with blade tip and is oppositely arranged, at least one both hold joint for that can handle tested the rotatable of blade revolution, and both at least one for can relative to other side movement regulation the removable of installation site hold joint.The present invention has longitudinal magnetization sensitivity high, and small draw ratio blade magnetic inspection magnetic field intensity is small, and demagnetization need not easily use the repeated multiple times demagnetization of large-scale demagnetizing apparatus, magnetic inspection efficiency high, be applicable blade species it is wide the features such as.
Description
Technical field
It is to be related to one kind for magnetic spy equipment more specifically the present invention relates to blade of aviation engine magnetic inspection technology
Improve the fitting device of magnetic testing sensitivity of aviation engine blade.
Background technology
Blade of aviation engine is the highly important part of aero-engine, needs block-by-block to carry out Magnetic testing before assembling（Magnetic
Inspection）, and magnetic inspection after to be demagnetized, with ensure aero-engine operation safety.Blade of aviation engine Magnetic testing belongs to special
Kind of detection, the defect that can be detected include crackle, be mingled with, hairline, folding etc..To ensure the reliability of magnetic inspection, prevent part from filling
Because accident occurs in defect, it is necessary to examining program and standard in strict accordance with magnetic carries out magnetic inspection and demagnetization after machine.Magnetic inspection is using magnetic field pair
The stray field produced after part magnetization attracts magnetic to show the defect that blade is present.Demagnetization refers to magnetic after the completion of part magnetic is examined
The magnetized part demagnetization of inspection process.Demagnetization is one work that must be carried out after part magnetic is examined, because remanent magnetism can influence zero
Use after the following process of part and payment, particularly remanent magnetism can influence the normal work of electronic equipment.Due to part in practice
Demagnetization is dealt with improperly, and the accident brought by remanent magnetism influence electronic equipment normal work is not rarely seen.
During magnetic inspection, magnetic field intensity is bigger, and magnetic efficiency is better, while the stray field for producing is also bigger, inspection
The sensitivity of survey is also higher, and defect is also more easy clearly to be manifested.In magnetic inspection, except magnetic field intensity influence magnetic inspection effect
Outside, also seriously restriction magnetic examines effect to the quality of part longitudinal magnetization effect, and the quality of part longitudinal magnetization effect is main
Demagnetization after depending on the draw ratio of part, the bigger magnetic efficiency of draw ratio is better, and sensitivity is higher, and blade magnetic is examined also is got over
Easily, the demagnetization field intensity needed for demagnetizing is also just smaller, and the requirement to demagnetizing apparatus is also lower.Otherwise then still.
The species of blade of aviation engine is various, and length is not of uniform size, the draw ratio very little of some of which part.In blade
Magnetic inspection during, because the magnetic field intensity that magnetic spy equipment is provided is insufficient to greatly, the longitudinal magnetization effect of blade is poor, and magnetic spy is clever
Sensitivity is low, causes defect missing inspection, and detection quality cannot ensure occur often because of accident caused by part defect.Prior art
In order to overcome above mentioned problem, it is common practice to carry out magnetic inspection, but this band with the magnetic spy equipment that can provide bigger magnetic field intensity
It is that demagnetization is difficult to carry out problem, and easily residual remanent magnetism is, it is necessary to using large-scale demagnetizing apparatus to its repeated multiple times demagnetization, to avoid remanent magnetism
Use to part has adverse effect on.
The content of the invention
For the problem that the inspection of existing blade magnetic is present, the purpose of the present invention aims to provide a kind of raising blade of aviation engine
Magnetic examines the device of sensitivity, with low, small for the draw ratio leaf of the longitudinal magnetization sensitivity for solving existing magnetic inspection technology presence
Piece carries out magnetic inspection, and magnetic field intensity is big, and demagnetization is difficult, it is necessary to using the repeated multiple times demagnetization of large-scale demagnetizing apparatus, magnetic inspection efficiency is low, fits
The problems such as being lacked with the species of blade.
Basic thought of the invention is by providing a kind of device that can expand detected blade draw ratio, solving existing
The blade that the magnetic spy equipment of technology is small for draw ratio carries out the problem that magnetic inspection is present.
The device of the raising magnetic testing sensitivity of aviation engine blade that the present invention is provided, its composition is main to be included for that will fill
The fixed base plate being placed in magnetic inspection equipment bed body is put, being placed on fixed base plate is used for the tenon for handling tested blade tenon one end
Head holds joint, holds joint for handling the blade tip of tested blade tip one end, and is placed in tenon and holds joint for increasing quilt
Survey the extension plate that blade magnetic examines draw ratio, the installation direction of the installation direction of extension plate and tested blade is conversely, tenon holds joint
Joint is held with blade tip to be oppositely arranged, at least one both hold joint for that can handle the rotatable of tested blade revolution, and both are extremely
It is one of few to hold joint for the removable of installation site adjusted relative to other side's movement.
In order to goal of the invention is better achieved, the present invention can also further take following technical measures.Following technical measures
Implementation can be individually taken, also be can be combined and taken implementation, or even take implementation in the lump.
In above-mentioned technical proposal of the invention, the tenon is preferably held into joint and is designed as rotatable tenon and holds to connect
Head, holds the blade tip joint and is designed as moveable blade tip and hold joint.Certainly also tenon can be held joint and blade tip holds joint
Revolution is designed as simultaneously to hold joint and hold joint while being designed as may move.The rotatable tenon hold joint to hold binding structure excellent
First it is considered as the draw bail being fixedly connected with blade tenon.The binding structure of holding that the removable blade tip holds joint is paid the utmost attention to
Using holding structure.The structure that holds by the apical pore on the fixed block for being fixed on blade tip and can constitute removable blade tip and hold
The addendum cone of joint is constituted.
In above-mentioned technical proposal of the invention, the removable blade tip is held and designed between the base of joint and fixed base plate
Having makes blade tip hold the slide pair that joint holds joint movement regulation installation site relative to tenon, to adapt to the leaf of different length
Piece.The slide is secondary it is contemplated that being designed to hold joint by two guide rails on fixed base plate and positioned at removable blade tip
Slide construction on base is constituted.Two guide rails on fixed base plate are preferably guide-track groove, are held positioned at removable blade tip and connect
Slide construction on head base is two protruding rails.When blade magnetic is examined, removable blade tip is held joint and is moved to by slide pair
Behind position, it is fixed on fixed base plate by fixing bolt.
In above-mentioned technical proposal of the invention, in order to reduce the weight of device, the fixed base plate can design some use
In the hole for mitigating fixed base plate weight；The mobile blade tip is held and designed on the supporting plate of joint some for mitigating mobile blade tip
Hold the hole of joint weight.
The device of the raising magnetic testing sensitivity of aviation engine blade that the present invention is provided, joint arranging plate is held by tenon
The face direction extension plate opposite with tested direction blade, increases the magnetic inspection length of tested blade, expands the magnetic inspection length of blade
Footpath ratio, so as to completely solve existing blade magnetic inspection technology, for leaflet footpath than blade magnetic inspection exist longitudinal magnetization effect
Difference, magnetic inspection sensitivity is low, easily causes defect missing inspection, and detection quality cannot ensure occur often because of thing caused by part defect
Therefore problem.Blade longitudinal magnetization sensitivity is improve by setting up extension plate due to the present invention so that the equal draw ratio leaf of detection
The magnetic field intensity that piece needs is low, and it is easy that magnetic inspection retreats magnetic-capacity, it is to avoid use of the remanent magnetism to part has adverse effect on, and demagnetization
Blade after need not being examined to magnetic using large-scale demagnetizing apparatus carries out repeated multiple times demagnetization, greatly reduces demagnetization difficulty, improves
Magnetic inspection operating efficiency.
The device of the raising magnetic testing sensitivity of aviation engine blade that the present invention is provided, the blade magnetic than prior art is examined
Technology is summed up with following very prominent technique effect：
1）Reliability：The extension plate for especially setting increases the magnetic inspection draw ratio of tested blade, enhances blade longitudinal flux
The magnetic efficiency of change, improves magnetic inspection sensitivity, effectively prevent the missing inspection of defect, it is ensured that the quality of detection.
2）High efficiency：Blade tenon joint is rotatable tenon joint, and whole leaf is capable of achieving after being tested blade once mounting
The detection of piece, it is not necessary to change to be clamped again behind face by blade again and install part, improve the efficiency of work.
3）Versatility：To the various sizes of blade of same type, joint can be held without changing tenon, it is only necessary to adjust tenon
Hold the clamping that the bayonet socket on joint is capable of achieving blade part.The blade different for length, joint is held by removable blade tip
The mobile adjusting position on fixed base plate rail groove, you can realize the clamping of part.
4）Reliability, maintainability, safety and human factors：The various parts of the present apparatus are all simple mechanical apparatus, are easy for installation and maintenance, the difficulty of maintenance
Degree and cost are not easy infringement all than relatively low.
Brief description of the drawings
Fig. 1 is the main structure diagram for improving magnetic testing sensitivity of aviation engine blade device.
Fig. 2 is the overlooking the structure diagram for improving magnetic testing sensitivity of aviation engine blade device.
In above-mentioned accompanying drawing, the object of each shown by reference numeral mark is respectively：1- fixes base plate；2- blade tips hold joint；3- tenons
Head holds joint；4- extension plates；5- fixed blocks；6- is detected blade；7 guide-track grooves；8- magnetizing coils.
Specific embodiment
Explanation provides embodiments of the invention below in conjunction with the accompanying drawings, and the present invention is made further by embodiment
It is bright, it is more readily understood that the present invention in order to people.But it is important to note that specific embodiment of the invention is not limited
In the form described by example below, those skilled in the art without creative efforts, can also be very
Other specific embodiments are easily designed, therefore the embodiment of specific embodiment given below should not be interpreted as
Protection scope of the present invention, given embodiment is limited in by protection scope of the present invention.
Embodiment 1
The device of the raising magnetic testing sensitivity of aviation engine blade of the present embodiment, its structure as depicted in figs. 1 and 2, its
Constitute the main fixed base plate 1 by for device being placed in magnetic inspection equipment bed body, being placed on fixed base plate is used to handle
The tenon of tested blade tenon one end holds joint 3, holds joint 2, and placement for handling the blade tip of tested blade tip one end
In tenon the extension plate 4 that is used to increase tested blade magnetic inspection draw ratio on joint is held to constitute, the installation direction of extension plate with it is tested
The installation direction of blade is conversely, tenon holds joint and holds joint with blade tip and is oppositely arranged.It is rotatable tenon that the tenon holds joint
Head holds joint, and it is the draw bail being fixedly connected with blade tenon that it holds binding structure.The blade tip holds joint for moveable leaf
Joint is held on pinnacle, and blade tip holds holding binding structure by the apical pore on the fixed block 5 for being fixed on blade tip and constituting mobile leaf for joint
The addendum cone that point holds joint is constituted；The moving structure that blade tip holds joint is slide pair, sliding pair between base and fixed base plate
By two guide-track grooves 7 on fixed base plate and hold two protruding rails on joint base positioned at removable blade tip and constitute.It is described
Fixed base plate 1 and the removable blade tip are held and some holes for alleviator weight are designed with the supporting plate of joint.Leaf
When piece 6 carries out magnetic inspection, it is suspended from magnetizing coil 8.The length of the extension plate 4 is more than the length of tested blade, examines blade magnetic
Draw ratio be more than 2.
Claims (7)
1. it is a kind of improve magnetic testing sensitivity of aviation engine blade device, it is characterised in that mainly include：For device to be pacified
The fixed base plate (1) in magnetic inspection equipment bed body is put, being placed on fixed base plate is used to handle tested blade (6) tenon one end
Tenon holds joint (3), holds joint (2) for handling the blade tip of tested blade tip one end, and is placed in tenon and holds joint use
Examine the extension plate (4) of draw ratio in the tested blade magnetic of increase, the installation direction of the installation direction of extension plate and tested blade conversely,
Tenon holds joint and holds joint with blade tip and is oppositely arranged, and it is that rotatable the holding that can handle tested blade revolution connects that the tenon holds joint
Head, and the rotatable binding structure of holding for holding joint is fixed connection structure, the blade tip holds joint for that can be moved relative to other side
The removable of regulation installation site holds joint, and removable blade tip hold joint hold binding structure to hold structure.
2. it is according to claim 1 improve magnetic testing sensitivity of aviation engine blade device, it is characterised in that the top
Structure is held by the apical pore on the fixed block for being fixed on blade tip and is constituted mobile blade tip and is held the addendum cone of joint and constitute.
3. it is according to claim 1 improve magnetic testing sensitivity of aviation engine blade device, it is characterised in that it is described can
Mobile blade tip to be held and be designed with slide pair between joint base and fixed base plate (1).
4. it is according to claim 3 improve magnetic testing sensitivity of aviation engine blade device, it is characterised in that it is described to lead
Rail sliding pair by two guide rails on fixed base plate and positioned at removable blade tip hold on joint base with two guide rail phases
The slide construction matched somebody with somebody is constituted.
5. the device for improving magnetic testing sensitivity of aviation engine blade according to claim 4, it is characterised in that positioned at solid
Two guide rails on base plate are determined for two guide-track grooves, and it is two convex that the slide construction on joint base is held positioned at removable blade tip
Rail.
6. according to the device of the described raising magnetic testing sensitivity of aviation engine blade of one of claim 1 to 5, it is characterised in that
The fixed base plate (1) is designed with some holes for mitigating fixed base plate weight.
7. according to the device of the described raising magnetic testing sensitivity of aviation engine blade of one of claim 1 to 5, it is characterised in that
The blade tip is held and be designed with the supporting plate of joint (2) some holes that joint weight is held for mitigating blade tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310485932.5A CN103529119B (en) | 2013-10-16 | 2013-10-16 | Improve the device of magnetic testing sensitivity of aviation engine blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310485932.5A CN103529119B (en) | 2013-10-16 | 2013-10-16 | Improve the device of magnetic testing sensitivity of aviation engine blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103529119A CN103529119A (en) | 2014-01-22 |
| CN103529119B true CN103529119B (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310485932.5A Active CN103529119B (en) | 2013-10-16 | 2013-10-16 | Improve the device of magnetic testing sensitivity of aviation engine blade |
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| Country | Link |
|---|---|
| CN (1) | CN103529119B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111505110B (en) * | 2020-04-30 | 2024-07-19 | 中国航发成都发动机有限公司 | Blade tenon magnetic powder detection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009011596U1 (en) * | 2009-08-21 | 2010-01-07 | Krause-Wichmann, Peter | Handheld tester for optical crack detection with integrated lighting device |
| CN201540204U (en) * | 2009-12-01 | 2010-08-04 | 袁俊凇 | Base of automobile precision gauge |
| CN202412267U (en) * | 2011-11-29 | 2012-09-05 | 天津市天发重型水电设备制造有限公司 | Scribing tool for blades in water turbine runner hub assembly |
| CN203551510U (en) * | 2013-10-16 | 2014-04-16 | 成都发动机（集团）有限公司 | Magnetic particle testing equipment for aero-engine blade |
-
2013
- 2013-10-16 CN CN201310485932.5A patent/CN103529119B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009011596U1 (en) * | 2009-08-21 | 2010-01-07 | Krause-Wichmann, Peter | Handheld tester for optical crack detection with integrated lighting device |
| CN201540204U (en) * | 2009-12-01 | 2010-08-04 | 袁俊凇 | Base of automobile precision gauge |
| CN202412267U (en) * | 2011-11-29 | 2012-09-05 | 天津市天发重型水电设备制造有限公司 | Scribing tool for blades in water turbine runner hub assembly |
| CN203551510U (en) * | 2013-10-16 | 2014-04-16 | 成都发动机（集团）有限公司 | Magnetic particle testing equipment for aero-engine blade |
Non-Patent Citations (1)
| Title |
|---|
| 闭合磁路线圈法在磁粉检测中的应用;邱志宇等;《无损探伤》;20050228;第29卷(第1期);第39-41页 * |
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| Publication number | Publication date |
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| CN103529119A (en) | 2014-01-22 |
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