CN209432444U - A kind of rake total pressure probe - Google Patents
A kind of rake total pressure probe Download PDFInfo
- Publication number
- CN209432444U CN209432444U CN201822107190.3U CN201822107190U CN209432444U CN 209432444 U CN209432444 U CN 209432444U CN 201822107190 U CN201822107190 U CN 201822107190U CN 209432444 U CN209432444 U CN 209432444U
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- China
- Prior art keywords
- probe
- total pressure
- support plate
- rake
- pressure probe
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- 239000000523 sample Substances 0.000 title claims abstract description 119
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 238000005219 brazing Methods 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 238000003466 welding Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 2
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
This application discloses a kind of rake total pressure probes.The rake total pressure probe includes: probe strut, and mounting base, square key, adjusts screw, upper supporting plate, lower carrier plate, mounting base at knurled nut；Wherein, the probe strut has inner space, and probe branch rod outer surface has external screw thread peace keyway；It is provided with strut mounting hole in the mounting base, clearance fit between the strut mounting hole on the probe strut and mounting base, external screw thread cooperation on the internal screw thread and probe strut of the knurled nut, the keyway cooperation on square key and probe strut；It is connected between lower carrier plate and mounting base, upper supporting plate is connected with lower carrier plate；The adjusting screw is provided on the upper supporting plate.The rake total pressure probe of the application realizes total pressure probe measuring point along the quantitative adjusting of engine radial direction using the method for screw drives, keyway guidance, screw fastening.
Description
Technical Field
The application relates to the technical field of aero-engines, in particular to a rake-shaped total pressure probe.
Background
A supporting rod of the current flow field measuring probe for each section of the tail edge of the guide vane of the engine is directly welded with a mounting seat, the probe is directly fixed on the mounting seat of the engine casing through a screw, and the radial position of a measuring point arranged on the supporting rod of the probe is fixed. Because the installation space of the sensing part on the engine is very limited and is limited by the structural form of the rake-shaped total pressure probe, a plurality of measuring points cannot be arranged on a single rake-shaped total pressure probe along the radial direction of the engine blade. In order to measure the total pressure flow field at a plurality of positions such as the blade root, the blade leaf, the blade tip and the like of the guide blade of the engine, rake-shaped total pressure probes with various radial sizes need to be designed and processed, and measurement is carried out at different angular positions of the engine.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
SUMMERY OF THE UTILITY MODEL
It is an object of the present application to provide a rake total pressure probe that overcomes or at least alleviates at least one of the above-mentioned disadvantages of the prior art.
To achieve the above object, the present application provides a rake-shaped total pressure probe, comprising: the probe support rod, the mounting seat, the knurled nut, the square key, the adjusting screw, the upper support plate, the lower support plate and the mounting seat; the probe support rod is provided with an inner space, and the outer surface of the probe support rod is provided with an external thread and a flat key groove; a supporting rod mounting hole is formed in the mounting seat, the probe supporting rod is in clearance fit with the supporting rod mounting hole in the mounting seat, internal threads of the knurled nut are matched with external threads on the probe supporting rod, and a square key is matched with a key groove in the probe supporting rod; the lower support plate is connected with the mounting seat, and the upper support plate is connected with the lower support plate; the upper support plate is provided with the adjusting screw.
Optionally, the rake total pressure probe further comprises a radial scale, and the radial scale and the upper support plate are fastened through screws.
Optionally, the rake total pressure probe further comprises a probe tail assembly, and one end of the probe tail assembly is connected.
Optionally, the rake total pressure probe further comprises an air tube and a support plate, the support plate is mounted on one end of the probe support rod, the end of the probe tail assembly is far away from the support plate, the air tube is partially arranged in the inner space, the part of the air tube, which is arranged outside the inner space, is mounted on the support plate, and the air tube is provided with a through hole.
Optionally, the upper support plate is welded to the lower support plate.
Optionally, the portion of the air tube disposed in the interior space is connected to the probe tail assembly.
Optionally, the portion of the air tube disposed in the interior space is welded to the probe tail assembly.
Optionally, the portion of the air tube disposed outside the interior space is connected to the brace by silver brazing.
Optionally, the air tube is disposed with a gap between the portion of the interior space and the strut, the gap being filled by weld overlay.
The rake-shaped total pressure probe realizes the quantitative adjustment of a total pressure probe measuring point along the radial direction of an engine by adopting methods of screw driving, key groove guiding and screw fastening.
Drawings
FIG. 1 is a schematic structural view of a rake total pressure probe of the present application;
FIG. 2 is a schematic view of a rake total pressure probe mounting structure according to the present application;
FIG. 3 is a schematic diagram of a partial structure of a rake-shaped total pressure probe;
FIG. 4 is a schematic view of a mounting base structure of the rake total pressure probe shown in FIG. 1;
FIG. 5 is a schematic diagram of the probe support bar structure of the rake total pressure probe shown in FIG. 1;
FIG. 6 is a schematic diagram of an upper arm structure of the rake total pressure probe shown in FIG. 1;
FIG. 7 is a schematic diagram of the lower support structure of the rake total pressure probe shown in FIG. 1;
FIG. 8 is a schematic view of a radial scale structure of the rake total pressure probe shown in FIG. 1;
FIG. 9 is a schematic view of a knurled nut of the rake total pressure probe shown in FIG. 1.
Reference numerals:
1-probe tail component, 4-radial graduated scale, 5-screw, 6-upper support plate, 7-adjusting screw, 8-knurled nut, 9-lower support plate, 10-screw, 11-square key, 12-mounting seat, 13-probe support rod, 14-air tube and 15-support plate.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be considered limiting of the scope of the present application.
FIG. 1 is a schematic diagram of a rake total pressure probe according to the present application. Fig. 2 is a schematic view of a rake total pressure probe mounting structure according to the present application. FIG. 3 is a schematic diagram of a partial structure of a rake-shaped total pressure probe. Fig. 4 is a schematic view of a mounting base structure of the rake total pressure probe shown in fig. 1. FIG. 5 is a schematic diagram of the probe support structure of the rake total pressure probe shown in FIG. 1. FIG. 6 is a schematic diagram of an upper arm structure of the rake total pressure probe shown in FIG. 1. FIG. 7 is a schematic diagram of the structure of the lower support plate of the rake total pressure probe shown in FIG. 1. Fig. 8 is a schematic view of a radial scale structure of the rake total pressure probe shown in fig. 1. FIG. 9 is a schematic view of a knurled nut of the rake total pressure probe shown in FIG. 1.
The rake-shaped total pressure probe shown in fig. 1 to 9 comprises a probe support rod 13, a mounting seat 12, a knurled nut 8, a square key 11, an adjusting screw 7, an upper support plate 6, a lower support plate 9 and a mounting seat 12; wherein, the probe supporting rod 13 is provided with an inner space, and the outer surface of the probe supporting rod 13 is provided with an external thread and a flat key groove; a supporting rod mounting hole is formed in the mounting seat 12, the probe supporting rod 13 is in clearance fit with the supporting rod mounting hole in the mounting seat 12, internal threads of the knurled nut 8 are matched with external threads on the probe supporting rod 13, and the square key 11 is matched with a key groove in the probe supporting rod 13; the lower support plate 9 is connected with the mounting seat 12, and the upper support plate 6 is connected with the lower support plate 9; the upper support plate 6 is provided with an adjusting screw 7.
The rake-shaped total pressure probe realizes the quantitative adjustment of a total pressure probe measuring point along the radial direction of an engine by adopting methods of screw driving, key groove guiding and screw fastening.
Referring to fig. 2 and 8, in the present embodiment, the rake-shaped total pressure probe further includes a radial scale 4, and the radial scale 4 and the upper support plate 6 are fastened by a screw 5.
Referring to fig. 1, in the present embodiment, the rake-shaped total pressure probe further includes a probe tail assembly 1, and one end of the probe tail assembly 1 is connected.
Referring to fig. 2 and 3, in the present embodiment, the rake-shaped total pressure probe further includes an air tube 14 and a support plate 15, the support plate 15 is mounted on one end of the probe supporting rod 13 far from the probe tail assembly 1, the air tube 14 is partially disposed in the inner space, a portion of the air tube 14 disposed outside the inner space is mounted on the support plate 15, and the air tube 14 has a through hole.
Referring to fig. 2, 6 and 7, in the present embodiment, the upper support plate 6 is welded to the lower support plate 9.
Referring to fig. 2, in the present embodiment, a portion of the air tube 14 disposed in the inner space is connected to the probe tail assembly 1.
Referring to fig. 2, in the present embodiment, the portion of the air tube 14 disposed in the inner space is welded to the probe tail assembly 1.
In the present embodiment, the portion of the air tube 14 disposed outside the internal space is connected to the stay 15 by silver brazing.
In the present embodiment, the air tube 14 has a gap between the portion of the internal space and the probe pin 13, and the gap is filled by build-up welding.
Referring to fig. 1 to 9, a probe tail assembly 1, a probe mounting structure assembly 2 and a probe head assembly 3 are shown in fig. 1. The probe head assembly 3 comprises a probe support 13, an air tube 14 and a support plate 15, as shown in fig. 3. As shown in fig. 5, the probe pin support 13 is made of a tube material, and an external thread and a flat key groove are formed on the outer surface of the tube material. The air tube 14 is led from the flow channel side point to the probe tail assembly 1 through the inner space of the strut 13 and is fixedly sealed by welding. The air pipe 14 is respectively assembled on the mounting holes reserved on the support plate 15 according to the arrangement requirements of the measuring points, and is reliably fixed by using a silver-copper welding mode, the air pipe measuring head is finely processed according to the total pressure test requirements, and the perpendicularity between the air pipe measuring head and the support rod is adjusted to enable the air pipe measuring head to be over against the incoming flow direction of the measured airflow. And a gap between the lead wire space inside the probe support rod 13 and the air pipe 14 is filled by adopting a surfacing welding mode, and the air pipe 14 is reliably fixed.
As shown in FIG. 2, the rake-shaped total pressure probe mounting structure provided by the invention has the advantages that a conventional welding and fixing mode is omitted between the rake-shaped total pressure probe support rod and the mounting seat, and the quantitative adjustment of the total pressure probe measuring point along the radial direction of the engine is realized by adopting a method of screw driving, key groove guiding and screw fastening.
Adopt clearance fit between the support bar mounting hole on probe branch 13 and mount pad 12, the external screw thread fit on the internal thread of knurled nut 8 and probe branch 13, the keyway cooperation on square key 11 and the probe branch 13.
The lower support plate 9 and the mounting seat 12 are fastened through screws 10, and the upper support plate 6 and the lower support plate 9 are connected in a welding mode.
The radial scale 4 and the upper support plate 6 are fastened by screws 5. Two adjusting screws 7 are uniformly distributed on the upper support plate 6, and the knurled nut 8 can be positioned.
Before the engine is installed, the support rod 13 is driven to be adjusted along the radial direction of the engine by rotating the knurled nut 8 according to requirements, a probe measuring point is adjusted to a desired position, then the two adjusting screws 7 on the side surface of the upper support plate 6 are screwed, and the knurled nut 8 is fastened at the current position.
When the total pressure test is required to be carried out on different radial sections, the fastening screws 7 are loosened, and the radial positions of the measuring points are readjusted as required, so that the multi-size total pressure measurement of the rake-shaped total pressure probe can be realized.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (9)
1. A rake total pressure probe, comprising: the probe comprises a probe support rod (13), a mounting seat (12), a knurled nut (8), a square key (11), an adjusting screw (7), an upper supporting plate (6), a lower supporting plate (9) and a mounting seat (12); wherein,
the probe support rod (13) is provided with an inner space, and the outer surface of the probe support rod (13) is provided with an external thread and a flat key groove;
a support rod mounting hole is formed in the mounting seat (12), the probe support rod (13) is in clearance fit with the support rod mounting hole in the mounting seat (12), the internal thread of the knurled nut (8) is matched with the external thread on the probe support rod (13), and the square key (11) is matched with the key groove in the probe support rod (13);
the lower support plate (9) is connected with the mounting seat (12), and the upper support plate (6) is connected with the lower support plate (9);
the upper support plate (6) is provided with the adjusting screw (7).
2. A rake total pressure probe according to claim 1, characterized in that it further comprises a radial scale (4), said radial scale (4) and upper support plate (6) being fastened by screws (5).
3. A rake total pressure probe according to claim 2, characterized in that the rake total pressure probe further comprises a probe tail assembly (1), and one end of the probe tail assembly (1) is connected.
4. A rake total pressure probe according to claim 3, characterized in that it further comprises an air tube (14) and a support plate (15), said support plate (15) being mounted on the end of said probe support rod (13) remote from said probe tail assembly (1), said air tube (14) being partially arranged inside an inner space, the portion of said air tube (14) arranged outside said inner space being mounted on said support plate (15), said air tube (14) having a through hole.
5. A rake total pressure probe according to claim 1, characterized in that the upper support plate (6) is welded to the lower support plate (9).
6. A rake total pressure probe according to claim 4, characterized in that the part of the air tube (14) arranged in the inner space is connected with the probe tail assembly (1).
7. A rake total pressure probe according to claim 4, characterized in that the portion of the air tube (14) arranged in the inner space is welded with the probe tail assembly (1).
8. A rake total pressure probe according to claim 4, characterized in that the portion of the air tube (14) disposed outside the interior space is connected to the support plate (15) by means of silver brazing.
9. A rake total pressure probe according to claim 4, characterized in that the air tube (14) is arranged with a gap between a portion of the inner space and the probe support rod (13), which gap is filled by means of weld overlay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822107190.3U CN209432444U (en) | 2018-12-16 | 2018-12-16 | A kind of rake total pressure probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822107190.3U CN209432444U (en) | 2018-12-16 | 2018-12-16 | A kind of rake total pressure probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209432444U true CN209432444U (en) | 2019-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822107190.3U Active CN209432444U (en) | 2018-12-16 | 2018-12-16 | A kind of rake total pressure probe |
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| CN (1) | CN209432444U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110954333A (en) * | 2019-12-05 | 2020-04-03 | 中国航发四川燃气涡轮研究院 | Probe and method of using the same |
| CN116609027A (en) * | 2023-07-14 | 2023-08-18 | 中国空气动力研究与发展中心低速空气动力研究所 | Pressure measuring rake |
-
2018
- 2018-12-16 CN CN201822107190.3U patent/CN209432444U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110954333A (en) * | 2019-12-05 | 2020-04-03 | 中国航发四川燃气涡轮研究院 | Probe and method of using the same |
| CN116609027A (en) * | 2023-07-14 | 2023-08-18 | 中国空气动力研究与发展中心低速空气动力研究所 | Pressure measuring rake |
| CN116609027B (en) * | 2023-07-14 | 2023-10-20 | 中国空气动力研究与发展中心低速空气动力研究所 | Pressure measuring rake |
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