CN104279966A - Detection method for swirl holes in nozzle swirl plate of aircraft engine - Google Patents
Detection method for swirl holes in nozzle swirl plate of aircraft engine Download PDFInfo
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- CN104279966A CN104279966A CN201410524139.6A CN201410524139A CN104279966A CN 104279966 A CN104279966 A CN 104279966A CN 201410524139 A CN201410524139 A CN 201410524139A CN 104279966 A CN104279966 A CN 104279966A
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- swirl plate
- eddy current
- nozzle swirl
- current hole
- nozzle
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Abstract
The invention belongs to measuring technologies and relates to a detection method for swirl holes in a nozzle swirl plate of an aircraft engine. The method comprises the following detection steps of assembling positioning pins, placing the nozzle swirl plate (1), measuring central coordinate values of the nozzle swirl plate (1), detecting the size a and detecting the size b. According to the detection method for the swirl holes in the nozzle swirl plate of the aircraft engine, the size a and the size b can be measured accurately, it is guaranteed that the size a and the size b meet requirements of drawings, and the atomization performance of a nozzle is guaranteed.
Description
Technical field
The invention belongs to measuring technique, relate to the detection method in eddy current hole on a kind of aeroplane engine machine nozzle swirl plate.
Background technology
The structure of certain type aeroplane engine machine nozzle swirl plate is see Fig. 1,2.Nozzle swirl plate is one of important nebulising element in nozzle, and to be a thickness be for it
outside diameter D=3
-0.01the disk of mm, two through eddy current holes 2 are had at the upper surface of nozzle swirl plate 1, the axisymmetrical of two eddy current hole 2 relative nozzle swirl plates 1, distance b=0.42 ± the 0.012mm of the upper port central point C to nozzle swirl plate 1 horizontal center line G in eddy current hole 2, distance a=0.75 ± the 0.012mm of the upper port central point C to nozzle swirl plate 1 vertical center line E in eddy current hole 2, the axis in eddy current hole 2 is parallel with the vertical split of nozzle swirl plate 1, the axis in eddy current hole 2 and angle α=45 of nozzle swirl plate 1 upper surface ° ± 10 ', the aperture d=0.52 in eddy current hole 2
+ 0.01mm.At present, cannot measure above-mentioned size a and size b, can only be ensured by process.Its shortcoming is: the problem such as cannot to avoid owing to there is tool-setting error and tool wear in process, cause size a and size b to there is overproof possibility, if size a and size b is overproof, will affect the atomization index of nozzle, even cause nozzle to scrap.
Summary of the invention
The object of the invention is: the detection method proposing eddy current hole on a kind of aeroplane engine machine nozzle swirl plate, to carry out Measurement accuracy to size a and size b, guarantee that size a and size b meets drawing requirement, ensure the atomization of nozzle.
Technical scheme of the present invention is: the detection method in eddy current hole on aeroplane engine machine nozzle swirl plate, and nozzle swirl plate 1 is a thickness
outside diameter D=3
-0.01the disk of mm, in the eddy current hole 2 that the upper surface of nozzle swirl plate 1 has two to tilt, the axisymmetrical of two eddy current hole 2 relative nozzle swirl plates 1, distance b=0.42 ± the 0.012mm of the upper port central point C to nozzle swirl plate 1 horizontal center line G in eddy current hole 2, distance a=0.75 ± the 0.012mm of the upper port central point C to nozzle swirl plate 1 vertical center line E in eddy current hole 2, the axis in eddy current hole 2 is parallel with the vertical split of nozzle swirl plate 1, the axis in eddy current hole 2 and angle α=45 of nozzle swirl plate 1 upper surface ° ± 10 ', the aperture d=0.52 in eddy current hole 2
+ 0.01mm; The size detected is needed to be a and b; It is characterized in that: the step of detection is as follows:
1, assembling and positioning pin: the lower port of the upper end of register pin 4 from the eddy current hole 2 of nozzle swirl plate 1 inserted in eddy current hole 2, register pin 4 is straight pin, and its outside dimension is 0.52
-0.1;
2, nozzle swirl plate 1 is placed: be placed on the upper surface of detection platform 3 by the nozzle swirl plate 1 of band register pin 4, ensure that the lower surface of nozzle swirl plate 1 and the upper surface of detection platform 3 are fitted, fit in the outer round surface of register pin 4 and the side of detection platform 3, detection platform 3 is square; At subsides commissure point 502 glue of the lower surface of nozzle swirl plate 1 and the upper surface of detection platform 3;
3, the centre coordinate value of gaging nozzle swirl plate 1:
3.1, be loaded on the worktable of tool microscope by detection platform 3, rotate detection platform 3, make certain side of detection platform parallel with the x-axis of tool microscope coordinate system, now, the side of fitting with register pin 4 is towards the positive dirction of x-axis;
3.2, adjust the worktable of tool microscope, measure the coordinate figure x1 of nozzle swirl plate 1 upper surface center point P in tool microscope coordinate system, y1;
4, size a is detected: by the horizontal ordinate of upper port minor axis two end points in eddy current hole 2 on gaging nozzle swirl plate 1, calculate the horizontal ordinate x2 of eddy current hole 2 upper port central point C; Then size a equals the absolute value of the difference of x1 and x2;
5, size b is detected: by the ordinate of upper port major axis two end points in eddy current hole 2 on gaging nozzle swirl plate 1, calculate the ordinate y2 of eddy current hole 2 upper port central point C; Then size b equals the absolute value of the difference of y1 and y2.
Advantage of the present invention is: the detection method proposing eddy current hole on a kind of aeroplane engine machine nozzle swirl plate, can carry out Measurement accuracy, ensure that size a and size b meets drawing requirement, ensure that the atomization of nozzle size a and size b.
Accompanying drawing explanation
Fig. 1 is the structural representation of certain type aeroplane engine machine nozzle swirl plate.
Fig. 2 is the B-B cut-open view of Fig. 1.
Fig. 3 is the detection schematic diagram of size a.
Fig. 4 is the detection schematic diagram of size b.
Embodiment
Below the present invention is described in further details.See Fig. 1 to Fig. 4, the detection method in eddy current hole on aeroplane engine machine nozzle swirl plate, nozzle swirl plate 1 is a thickness
outside diameter D=3
-0.01the disk of mm, in the eddy current hole 2 that the upper surface of nozzle swirl plate 1 has two to tilt, the axisymmetrical of two eddy current hole 2 relative nozzle swirl plates 1, distance b=0.42 ± the 0.012mm of the upper port central point C to nozzle swirl plate 1 horizontal center line G in eddy current hole 2, distance a=0.75 ± the 0.012mm of the upper port central point C to nozzle swirl plate 1 vertical center line E in eddy current hole 2, the axis in eddy current hole 2 is parallel with the vertical split of nozzle swirl plate 1, the axis in eddy current hole 2 and angle α=45 of nozzle swirl plate 1 upper surface ° ± 10 ', the aperture d=0.52 in eddy current hole 2
+ 0.01mm; The size detected is needed to be a and b; It is characterized in that: the step of detection is as follows:
1, assembling and positioning pin: the lower port of the upper end of register pin 4 from the eddy current hole 2 of nozzle swirl plate 1 inserted in eddy current hole 2, register pin 4 is straight pin, and its outside dimension is 0.52
-0.1;
2, nozzle swirl plate 1 is placed: be placed on the upper surface of detection platform 3 by the nozzle swirl plate 1 of band register pin 4, ensure that the lower surface of nozzle swirl plate 1 and the upper surface of detection platform 3 are fitted, fit in the outer round surface of register pin 4 and the side of detection platform 3, detection platform 3 is square; At subsides commissure point 502 glue of the lower surface of nozzle swirl plate 1 and the upper surface of detection platform 3;
3, the centre coordinate value of gaging nozzle swirl plate 1:
3.1, be loaded on the worktable of tool microscope by detection platform 3, rotate detection platform 3, make certain side of detection platform parallel with the x-axis of tool microscope coordinate system, now, the side of fitting with register pin 4 is towards the positive dirction of x-axis;
3.2, adjust the worktable of tool microscope, measure the coordinate figure x1 of nozzle swirl plate 1 upper surface center point P in tool microscope coordinate system, y1;
4, size a is detected: by the horizontal ordinate of upper port minor axis two end points in eddy current hole 2 on gaging nozzle swirl plate 1, calculate the horizontal ordinate x2 of eddy current hole 2 upper port central point C; Then size a equals the absolute value of the difference of x1 and x2;
5, size b is detected: by the ordinate of upper port major axis two end points in eddy current hole 2 on gaging nozzle swirl plate 1, calculate the ordinate y2 of eddy current hole 2 upper port central point C; Then size b equals the absolute value of the difference of y1 and y2.
Embodiment 1
The detecting step of drawing requirement size a=0.75 ± 0.012mm, b=0.42 ± 0.012mm, size a and size b is as follows:
1, assembling and positioning pin: the lower port of the upper end of register pin 4 from the eddy current hole 2 of nozzle swirl plate 1 inserted in eddy current hole 2, register pin 4 is straight pin, and its outside dimension is 0.518mm;
2, nozzle swirl plate 1 is placed: be placed on the upper surface of detection platform 3 by the nozzle swirl plate 1 of band register pin 4, ensure that the lower surface of nozzle swirl plate 1 and the upper surface of detection platform 3 are fitted, fit in the outer round surface of register pin 4 and the side of detection platform 3, detection platform 3 is square; At subsides commissure point 502 glue of the lower surface of nozzle swirl plate 1 and the upper surface of detection platform 3;
3, the centre coordinate value of gaging nozzle swirl plate 1:
3.1, be loaded on the worktable of tool microscope by detection platform 3, rotate detection platform 3, make certain side of detection platform parallel with the x-axis of tool microscope coordinate system, now, the side of fitting with register pin 4 is towards the positive dirction of x-axis;
3.2, adjust the worktable of tool microscope, to measure the coordinate figure x1 of nozzle swirl plate 1 upper surface center point P in tool microscope coordinate system be 25mm, y1 is 18mm;
4, size a is detected: be respectively 23.989mm and 24.509mm by the horizontal ordinate of eddy current hole 2 upper port minor axis two end points on gaging nozzle swirl plate 1, calculate the horizontal ordinate x2=24.249mm of eddy current hole 2 upper port central point C; Then size a=x1-x2=25-24.249=0.751mm, size a is qualified;
5, size b is detected: be respectively 18.11mm and 18.73mm by the ordinate of eddy current hole 2 upper port major axis two end points on gaging nozzle swirl plate 1, calculate the ordinate y2=18.42mm of eddy current hole 2 upper port central point C; Then size b=y2-y1=18.42-18=0.42mm, size b is qualified; .
Embodiment 2
The detecting step of drawing requirement size a=0.75 ± 0.012mm, b=0.42 ± 0.012mm, a size and b size is as follows:
1, assembling and positioning pin: the lower port of the upper end of register pin 4 from the eddy current hole 2 of nozzle swirl plate 1 inserted in eddy current hole 2, register pin 4 is straight pin, and its outside dimension is 0.52mm;
2, nozzle swirl plate 1 is placed: be placed on the upper surface of detection platform 3 by the nozzle swirl plate 1 of band register pin 4, ensure that the lower surface of nozzle swirl plate 1 and the upper surface of detection platform 3 are fitted, fit in the outer round surface of register pin 4 and the side of detection platform 3, detection platform 3 is square; At subsides commissure point 502 glue of the lower surface of nozzle swirl plate 1 and the upper surface of detection platform 3;
3, the centre coordinate value of gaging nozzle swirl plate 1:
3.1, be loaded on the worktable of tool microscope by detection platform 3, rotate detection platform 3, make certain side of detection platform parallel with the x-axis of tool microscope coordinate system, now, the side of fitting with register pin 4 is towards the positive dirction of x-axis;
3.2, adjust the worktable of tool microscope, to measure the coordinate figure x1 of nozzle swirl plate 1 upper surface center point P in tool microscope coordinate system be 20mm, y1 is 15mm;
4, size a is detected: be respectively 18.919mm and 19.439mm by the horizontal ordinate of eddy current hole 2 upper port minor axis two end points on gaging nozzle swirl plate 1, calculate the horizontal ordinate x2=19.179mm of eddy current hole 2 upper port central point C; Then size a=x1-x2=20-19.179=0.821mm, size a is defective;
5, size b is detected: be respectively 15.21mm and 15.83mm by the ordinate of eddy current hole 2 upper port major axis two end points on gaging nozzle swirl plate 1, calculate the ordinate y2=15.52mm of eddy current hole 2 upper port central point C; Then size b=y2-y1=15.52-15=0.52mm, size b is defective.
Embodiment 3
The detecting step of drawing requirement size a=0.75 ± 0.012mm, b=0.42 ± 0.012mm, a size and b size is as follows:
1, assembling and positioning pin: the lower port of the upper end of register pin 4 from the eddy current hole 2 of nozzle swirl plate 1 inserted in eddy current hole 2, register pin 4 is straight pin, and its outside dimension is 0.515mm;
2, nozzle swirl plate 1 is placed: be placed on the upper surface of detection platform 3 by the nozzle swirl plate 1 of band register pin 4, ensure that the lower surface of nozzle swirl plate 1 and the upper surface of detection platform 3 are fitted, fit in the outer round surface of register pin 4 and the side of detection platform 3, detection platform 3 is square; At subsides commissure point 502 glue of the lower surface of nozzle swirl plate 1 and the upper surface of detection platform 3;
3, the centre coordinate value of gaging nozzle swirl plate 1:
3.1, be loaded on the worktable of tool microscope by detection platform 3, rotate detection platform 3, make certain side of detection platform parallel with the x-axis of tool microscope coordinate system, now, the side of fitting with register pin 4 is towards the positive dirction of x-axis;
3.2, adjust the worktable of tool microscope, to measure the coordinate figure x1 of nozzle swirl plate 1 upper surface center point P in tool microscope coordinate system be 30mm, y1 is 25mm;
4, size a is detected: be respectively 28.979mm and 29.501mm by the horizontal ordinate of eddy current hole 2 upper port minor axis two end points on gaging nozzle swirl plate 1, calculate the horizontal ordinate x2=29.24mm of eddy current hole 2 upper port central point C; Then size a=x1-x2=30-29.24=0.76mm, size a is qualified;
5, size b is detected: be respectively 25.118mm and 25.738mm by the ordinate of eddy current hole 2 upper port major axis two end points on gaging nozzle swirl plate 1, calculate the ordinate y2=25.428mm of eddy current hole 2 upper port central point C; Then size b=y2-y1=25.428-25=0.428mm, size b is qualified.
Claims (1)
1. the detection method in eddy current hole on aeroplane engine machine nozzle swirl plate, nozzle swirl plate (1) is a thickness
outside diameter D=3
-0.01the disk of mm, in the eddy current hole (2) that the upper surface of nozzle swirl plate (1) has two to tilt, the axisymmetrical of two eddy current holes (2) relative nozzle swirl plate (1), distance b=0.42 ± the 0.012mm of the upper port central point C to nozzle swirl plate (1) horizontal center line G in eddy current hole (2), distance a=0.75 ± the 0.012mm of the upper port central point C to nozzle swirl plate (1) vertical center line E in eddy current hole (2), the axis in eddy current hole (2) is parallel with the vertical split of nozzle swirl plate (1), the axis in eddy current hole (2) and angle α=45 of nozzle swirl plate (1) upper surface ° ± 10 ', the aperture d=0.52 in eddy current hole (2)
+ 0.01mm, the size detected is needed to be a and b, it is characterized in that: the step of detection is as follows:
1.1, assembling and positioning pin: the upper end of register pin (4) is inserted in eddy current hole (2) from the lower port in the eddy current hole (2) of nozzle swirl plate (1), register pin (4) is straight pin, and its outside dimension is 0.52
-0.1;
1.2, nozzle swirl plate (1) is placed: be placed on the upper surface of detection platform (3) by the nozzle swirl plate (1) with register pin (4), ensure that the lower surface of nozzle swirl plate (1) and the upper surface of detection platform (3) are fitted, fit in the outer round surface of register pin (4) and the side of detection platform (3), detection platform (3) is square; At subsides commissure point 502 glue of the lower surface of nozzle swirl plate (1) and the upper surface of detection platform (3);
1.3, the centre coordinate value of gaging nozzle swirl plate (1):
1.3.1, detection platform (3) is loaded on the worktable of tool microscope, rotate detection platform (3), make certain side of detection platform parallel with the x-axis of tool microscope coordinate system, now, the side of fitting with register pin (4) is towards the positive dirction of x-axis;
1.3.2, adjustment tool microscope worktable, measure the coordinate figure (x1, y1) of nozzle swirl plate (1) upper surface center point P in tool microscope coordinate system;
1.4, size a is detected: by the horizontal ordinate of upper eddy current hole (2) upper port minor axis two end points of gaging nozzle swirl plate (1), calculate the horizontal ordinate x2 of eddy current hole (2) upper port central point C; Then size a equals the absolute value of the difference of x1 and x2;
1.5, size b is detected: by the ordinate of upper eddy current hole (2) upper port major axis two end points of gaging nozzle swirl plate (1), calculate the ordinate y2 of eddy current hole (2) upper port central point C; Then size b equals the absolute value of the difference of y1 and y2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410524139.6A CN104279966A (en) | 2014-10-08 | 2014-10-08 | Detection method for swirl holes in nozzle swirl plate of aircraft engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410524139.6A CN104279966A (en) | 2014-10-08 | 2014-10-08 | Detection method for swirl holes in nozzle swirl plate of aircraft engine |
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| CN104279966A true CN104279966A (en) | 2015-01-14 |
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| CN201410524139.6A Pending CN104279966A (en) | 2014-10-08 | 2014-10-08 | Detection method for swirl holes in nozzle swirl plate of aircraft engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108168475A (en) * | 2017-12-18 | 2018-06-15 | 中国航发贵州黎阳航空动力有限公司 | The measuring method of transporter burner inner liner shaped air film hole Special angle |
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| CN1493847A (en) * | 2002-10-31 | 2004-05-05 | 上海理工大学 | Microbore automatic measuring method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168475A (en) * | 2017-12-18 | 2018-06-15 | 中国航发贵州黎阳航空动力有限公司 | The measuring method of transporter burner inner liner shaped air film hole Special angle |
| CN108168475B (en) * | 2017-12-18 | 2020-07-21 | 中国航发贵州黎阳航空动力有限公司 | Method for measuring special-shaped angle of special-shaped air film hole of flame tube of conveyor |
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Application publication date: 20150114 |
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