CN117824463A - Device and method for measuring gap of guide pipe of aero-engine - Google Patents
Device and method for measuring gap of guide pipe of aero-engine Download PDFInfo
- Publication number
- CN117824463A CN117824463A CN202311681143.9A CN202311681143A CN117824463A CN 117824463 A CN117824463 A CN 117824463A CN 202311681143 A CN202311681143 A CN 202311681143A CN 117824463 A CN117824463 A CN 117824463A
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- Prior art keywords
- plug gauge
- head
- gap
- screw rod
- plug
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- 238000000034 method Methods 0.000 title abstract description 14
- 238000005259 measurement Methods 0.000 claims description 30
- 238000012856 packing Methods 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000000691 measurement method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 239000003570 air Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The invention discloses a measuring device and a measuring method for a catheter gap of an aeroengine, wherein the measuring device comprises a plug gauge and a screw rod, the plug gauge comprises a head part and a connecting part, the head part is used as a gap measuring structure, and the connecting part is provided with a plurality of threaded holes with unequal included angles between axes and the head part; the screw thread section of screw rod can dismantle the connection in the different screw holes of plug gauge connecting portion for the distance of screw rod to plug gauge head is different, the contained angle of screw rod and plug gauge head is different. When the invention is used for measuring the gap of the guide pipe, the angle, the distance and other parameters of the screw rod and the head part of the plug gauge can be adjusted according to the interference position, thereby being convenient for operators to extend the plug gauge into the gap of the guide pipe with different distribution types and accurately judging whether the actual numerical value of the gap meets the requirement.
Description
Technical Field
The invention belongs to the technical field of aeroengine assembly, and particularly relates to a measuring device and a measuring method for checking corresponding gaps in an engine guide pipe assembly process.
Background
The conduit system of the aeroengine is mainly used for conveying media such as fuel oil, lubricating oil, oxygen, air and the like, and is an important component for ensuring the normal operation of the engine. Because the aeroengine can have certain vibration in the operation process, deformation of the guide pipe can be possibly caused, and in order to avoid the deformation to cause contact between the guide pipe or the guide pipe and other parts, quality accidents occur, and reasonable guide pipe gaps must be ensured.
The aircraft engine duct system is very complex, and the number of positions where duct gaps need to be measured is large, and the number of types of duct gaps are various, for example, three different duct gap measurement state diagrams are shown in fig. 1, including a cross distribution type duct gap measurement, a parallel distribution duct gap measurement, and a duct and casing edge gap measurement. Because the tube types of different catheters are large in difference, the catheters are often staggered in the actual assembly process, so that the measurement positions are easy to interfere.
At present, conventional plug gauge and gauge tools are mainly adopted for measuring the gap of a catheter, and due to the fact that the structure of the conventional plug gauge and gauge tools is limited, when a catheter with a complex tubular shape is encountered, the conventional gauge and gauge tools cannot reach a measuring position for effective measurement, and at the moment, only a visual estimation mode can be adopted, so that the requirement of inaccurate measurement is met, and a certain quality hidden trouble exists.
Disclosure of Invention
The invention aims to provide an aeroengine duct clearance measuring device and an aeroengine duct clearance measuring method, which can flexibly and accurately measure the clearance between the aeroengine ducts, solve the problem that a current measuring tool cannot meet the requirement of complex duct clearance measurement, and improve the accuracy of duct clearance measurement.
The technical scheme adopted by the invention is as follows:
an aircraft engine duct clearance measurement device, comprising:
the plug gauge comprises a head and a connecting part, wherein the head is used as a gap measuring structure, and the connecting part is provided with a plurality of threaded holes with unequal included angles between axes and the head;
the screw rod, the screw thread section of screw rod can dismantle the connection in the different screw holes of plug gauge connecting portion for the screw rod is different to the distance of plug gauge head, and the screw rod is different with the contained angle of plug gauge head.
Alternatively, the head of the plug gauge is flat.
Alternatively, a plurality of threaded holes are distributed on the broken-line-shaped plane surface of the plug gauge connecting part, and each plane surface is vertically provided with one threaded hole.
Alternatively, the connection portion of the plug gauge has a volume greater than the volume of the head portion.
Alternatively, the plug gauges with different head sizes form a series, and the threaded holes on the connecting parts of the plug gauges in the same series have the same aperture and the same thread specification.
Alternatively, the width of the connecting portion is smaller than the maximum width of the head portion, and the maximum thickness of the connecting portion is larger than the maximum thickness of the head portion.
Alternatively, the aircraft engine duct clearance measurement apparatus further comprises a packing box containing a plurality of spaces for storing plug gauges of different specifications, and a space for storing the screw.
The method for measuring the clearance of the guide pipe of the aeroengine adopts the measuring device and comprises the following steps:
step one, selecting a plug gauge with proper specification according to the clearance requirement between the guide pipes, and screwing a threaded section of a screw rod into any threaded hole on a plug gauge connecting part;
step two, the plug gauge head of the measuring device connected in the step one stretches into a gap to be measured and slides back and forth, if the plug gauge head passes through easily, the gap meets the requirements, and if the plug gauge head passes through difficultly or cannot pass through easily, the gap is disqualified;
and thirdly, when the measuring device cannot smoothly extend the plug gauge into the gap to be measured due to interference, the screw rod is detached from the threaded hole of the plug gauge, the screw rod is screwed into another proper threaded hole according to the distance and the angle of the interference position, the measuring device is extended into the gap to be measured again until interference does not occur, and the operation after the head of the plug gauge extends into the gap to be measured in the second step is repeated.
The method for measuring the clearance of the guide pipe of the aeroengine further comprises a step four, wherein after the clearance measurement is finished, the plug gauge and the screw rod are detached and put into a packaging box.
Compared with the prior art, the gap measuring device and the gap measuring method have the following characteristics:
(1) The plug gauge is in threaded connection with the screw rod, the corresponding threaded hole space distribution positions are various, the measurement direction can be adjusted only by changing the connected threaded hole positions, the measurement requirements of different positions are met, and the interference problem is solved;
(2) The screw holes of the plug gauge are of a common size, the same screw rod can be combined with plug gauges of different specifications, the operation is convenient, the length of the screw rod is determined according to the position where the screw rod is required to extend in, and the screw rod is used as an extension handle of an operator;
(3) The plug gauge head is flat, is larger than the area of round head plug gauge measurement, measurement efficiency is high, and the width of connecting portion is less than the head, reduces the area that probably interferes, and the thickness of connecting portion is greater than the thickness of head, has enlarged the optional scope of thickness direction, and the volume of connecting portion is greater than the volume of head for measuring device's focus makes things convenient for the head to make a round trip in the clearance to slide at connecting portion.
Drawings
FIG. 1 is a schematic illustration of a measurement process for three different gap positions;
FIG. 2 is a block diagram of a plug gauge;
FIG. 3 is a view of the screw structure;
FIG. 4 is a block diagram of a package;
FIG. 5 is a schematic view of the assembly of the device of the present invention;
in the figure, a 1-plug gauge; 2-a screw; 3-packaging box.
Detailed Description
The present invention will be further described with reference to the drawings and the specific embodiments, but it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments, and various modifications, substitutions and alterations made according to the ordinary skill and familiar means of the art to which this invention pertains are included within the scope of the present invention without departing from the above technical idea of the invention.
The catheter gap measuring device adopts a combined structure, so that the measuring device can measure catheter gap values with different angles, different positions and different sizes, the operability during measurement is met, the problem of spatial interference between the measuring device and the catheter position is solved, and the measuring requirement is met.
The realization process of the invention during gap measurement is as follows: the catheter clearance measuring device comprises a plug gauge 1, a screw rod 2 and a packing box 3, wherein the screw rod 2 is connected with a threaded hole on the plug gauge 1 through a threaded end, and the screw rod 2 is used as a handle for controlling the direction of the plug gauge 1 so as to realize the measurement of the clearance between catheters.
As shown in fig. 2, the plug gauge 1 comprises a head and a connecting part, the head is flat, the connecting part is stepped, a series of plane surfaces with different angles and distances with the head are formed on one side of the head, each plane surface is provided with a threaded hole perpendicular to the plane surface, and the aperture and the thread specification of the threaded hole are the same.
As shown in fig. 3, the screw 2 includes a threaded end having a smaller outer diameter for connection with the threaded bore of the plug gauge 1.
As shown in fig. 4, the inside of the packing box 3 is divided into a plurality of small lattices, each of which is used for storing plug gauges 1 of different sizes.
The aircraft engine duct clearance measuring method comprises the following steps:
(1) According to the clearance requirement of the corresponding guide pipe, selecting a plug gauge 1 with proper specification, aligning the threaded end of the screw rod 2 with any threaded hole on the plug gauge 1, and realizing the connection of the two;
(2) The head of the plug gauge 1 of the installed catheter clearance measuring device stretches into the corresponding clearance measuring position and slides back and forth at the nearby position, if the plug gauge can easily pass through, the catheter clearance meets the standard, otherwise, the catheter clearance does not meet the requirement;
(3) When the head of the plug gauge 1 of the assembled measuring device cannot reach the designated measuring position, the screw rod 2 can be detached, the screw rod 2 is reinserted into the threaded hole in the other direction of the plug gauge 1, and the operation is carried out again according to the step (2);
(4) After the measurement of the gap between the guide pipes is completed, the plug gauge 1 and the screw rod 2 are disassembled and are put into a packing box 3 for proper storage.
What is not described in detail in the description of the invention belongs to the prior art known to those skilled in the art. While the foregoing describes illustrative embodiments of the present invention to facilitate an understanding of the present invention by those skilled in the art, it should be understood that the present invention is not limited to the scope of the embodiments, but is to be construed as protected by the accompanying claims insofar as various changes are within the spirit and scope of the present invention as defined and defined by the appended claims.
Claims (9)
1. An aircraft engine duct clearance measurement device, comprising:
the plug gauge (1) comprises a head and a connecting part, wherein the head is used as a gap measuring structure, and the connecting part is provided with a plurality of threaded holes with axes unequal to the head included angles;
screw rod (2), the screw thread section of screw rod (2) can be dismantled and connect in the different screw holes of plug gauge (1) connecting portion for the distance of screw rod (2) to plug gauge (1) head is different, and the contained angle of screw rod (2) and plug gauge (1) head is different.
2. An aircraft engine duct clearance measurement apparatus according to claim 1, wherein: the head of the plug gauge (1) is flat.
3. An aircraft engine duct clearance measurement apparatus according to claim 1, wherein: the threaded holes are distributed on the broken line-shaped plane surface of the connecting part of the plug gauge (1), and each plane surface is vertically provided with one threaded hole.
4. An aircraft engine duct clearance measurement apparatus according to claim 1, wherein: the volume of the connecting part of the plug gauge (1) is larger than the volume of the head part.
5. An aircraft engine duct clearance measurement apparatus according to claim 1, wherein: the plug gauges (1) with different head sizes form a series, the diameters of threaded holes on the connecting parts of the plug gauges (1) of the same series are the same, and the thread specifications are the same.
6. An aircraft engine duct clearance measurement apparatus according to claim 1, wherein: the width of the connecting part is smaller than the maximum width of the head part, and the maximum thickness of the connecting part is larger than the maximum thickness of the head part.
7. An aircraft engine duct clearance measurement apparatus according to claim 1, wherein: the plug gauge further comprises a packing box (3), wherein the packing box (3) comprises a plurality of spaces for storing plug gauges (1) with different specifications and a space for storing the screw rods (1).
8. An aircraft engine duct clearance measurement method, characterized in that it uses the measurement device according to claim 1 and comprises:
step one, selecting a plug gauge (1) with proper specification according to the clearance requirement between the guide pipes, and screwing a thread section of a screw rod (2) into any threaded hole on the connecting part of the plug gauge (1);
step two, the head of the plug gauge (1) of the measuring device connected in the step one stretches into a gap to be measured and slides back and forth, if the plug gauge passes through easily, the gap meets the requirements, and if the plug gauge passes through difficultly or cannot pass through easily, the gap is disqualified;
and thirdly, when the measuring device cannot smoothly extend the plug gauge (1) into the gap to be measured due to interference, the screw rod (2) is detached from the threaded hole of the plug gauge (1), the screw rod (2) is screwed into another proper threaded hole according to the distance and the angle of the interference position, the measuring device is extended into the gap to be measured again until interference does not occur, and the operation of extending the head of the plug gauge (1) into the gap to be measured in the second step is repeated.
9. The aircraft engine duct clearance measurement method of claim 8, wherein: and step four, after the gap measurement is finished, the plug gauge (1) and the screw (2) are disassembled and put into a packaging box (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311681143.9A CN117824463A (en) | 2023-12-08 | 2023-12-08 | Device and method for measuring gap of guide pipe of aero-engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311681143.9A CN117824463A (en) | 2023-12-08 | 2023-12-08 | Device and method for measuring gap of guide pipe of aero-engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117824463A true CN117824463A (en) | 2024-04-05 |
Family
ID=90514460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311681143.9A Pending CN117824463A (en) | 2023-12-08 | 2023-12-08 | Device and method for measuring gap of guide pipe of aero-engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117824463A (en) |
-
2023
- 2023-12-08 CN CN202311681143.9A patent/CN117824463A/en active Pending
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