CN206514768U - A kind of after-burner heat screen cooling duct elevation carrection instrument - Google Patents
A kind of after-burner heat screen cooling duct elevation carrection instrument Download PDFInfo
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- CN206514768U CN206514768U CN201720141346.2U CN201720141346U CN206514768U CN 206514768 U CN206514768 U CN 206514768U CN 201720141346 U CN201720141346 U CN 201720141346U CN 206514768 U CN206514768 U CN 206514768U
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- heat screen
- coordinating block
- depth gauge
- cooling duct
- main scale
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Abstract
The utility model provides a kind of after-burner heat screen cooling duct elevation carrection instrument, including slide measure part (1), hemisphere head assembly (2), cylindrical face coordinating block (3), corrugated profile coordinating block (4), group section (5), slide measure part (1) is connected by group section (5) with hemisphere head assembly (2), the cylindrical face coordinating block (3) and corrugated profile coordinating block (4) arranged in right-angled intersection are installed in hemisphere head assembly (2), cylindrical face section in cylindrical face coordinating block (3) laminating heat screen (7) is placed, corrugated profile coordinating block (4) laminating corrugated profile section is placed, depth gauge rule (13) in moving cursor slide calliper rule part (1), pass through hemisphere head assembly (2) and penetrate heat screen (7), and be in contact with wall (8).Survey tool of the present utility model, by setting positive block on measurement head, makes it be brought into close contact with heat-insulated screen type face, improves measurement accuracy.
Description
Technical field
The utility model belongs to aeroengine thrust augmentation Combustion chamber design field, and more particularly to after-burner heat screen is cold
But channel height size measurement and check equipment, and in particular to a kind of after-burner heat screen cooling duct elevation carrection work
Tool.
Background technology
High-temperature fuel gas temperature is up to more than 2000K in afterbunring room, to prevent after-burner outside wall temperature too high, leads to
Heat screen often is set in afterbunring room, high-temperature fuel gas separated with cylinder body outer wall, passage is used between outer wall and heat screen
The circulation of sub-cooled air-flow, while heat screen wall is provided with circular Cooling Holes, cooling gas flows out through Cooling Holes, and in heat screen
Surface forms air film, it is ensured that afterbunring chamber outer wall and heat screen surface temperature are in allowed band.To ensure that outside wall surface is enough
Cooling, cooling air flow passage height dimension is very crucial, is needed during aero-engine use periodically to afterbunring
Room heat screen cooling duct is measured along journey channel height size, but the height dimension is difficult measurement, is surveyed using conventional tool
Amount has significant limitations：1) reinforcing heat screen is usually corrugated, when using general vernier caliper measurement, because slide calliper rule coordinate
There is gap in face, measurement error is larger with heat-insulated screen type face；2) cooling duct is longer, can only be measured near import and export using clearance gauge
Channel height, it is difficult to measure channel height of the heat screen along journey other positions.
Utility model content
The purpose of this utility model is to provide a kind of after-burner heat screen cooling duct elevation carrection instrument, overcome
Or mitigate at least one drawbacks described above of prior art.
The purpose of this utility model is achieved through the following technical solutions：A kind of after-burner heat screen cooling duct height
Survey tool, for measuring the distance between heat screen and wall, including slide measure part, the slide measure partial interior is set
It is equipped with depth gauge rule, in addition to hemisphere head assembly, cylindrical face coordinating block, corrugated profile coordinating block, group section, slide measure part
The one end for being provided with depth gauge rule is connected by group section with hemisphere head assembly, is provided with and is arranged in right-angled intersection in hemisphere head assembly
Cylindrical face coordinating block and corrugated profile coordinating block, wherein, cylindrical face coordinating block is used to fitting the cylindrical in heat screen
Face section is placed, and corrugated profile coordinating block is placed for the corrugated profile section in heat screen of fitting；In moving cursor slide calliper rule part
Depth gauge rule, passes through hemisphere head assembly and penetrates heat screen, and be in contact with wall.
Preferably, the hemisphere head assembly includes hemispherical head and chaining pin locating piece, the hemispherical head and the chaining pin
Locating piece is connected by screw thread, wherein, the hemispherical head is detachably connected by screw with the group section, the chaining pin
Locating piece is used to coordinate the Cooling Holes on the heat screen to install, and guides the depth gauge rule in the slide measure part to penetrate institute
State heat screen.
Preferably, the slide measure part includes main scale component, the vernier being sleeved on the outside of the main scale component
Chi component and the depth gauge rule positioned at the main scale component internal, wherein, the vernier scale component is connected with the depth gauge rule, leads to
Cross the depth slided the vernier scale component and then control the depth gauge rule to enter the heat screen.
Preferably, the main scale component includes two main scales and connects the contiguous block of two main scale, wherein, should
A main scale in two main scales is carved with scale, and another main scale is smooth not to have scale, and two main scale is placed in
The depth gauge rule both sides, the contiguous block is to prevent the vernier scale component to be sliding out the main scale.
Preferably, the depth gauge rule includes measuring staff, and coordinates the chaining pin of socket by screw thread with the measuring staff one end, its
In, the external diameter of the chaining pin is less than the aperture of Cooling Holes on the heat screen.
Preferably, the thickness of cylindrical face coordinating block and the corrugated profile coordinating block is no more than 1mm.
A kind of beneficial effect of after-burner heat screen cooling duct elevation carrection instrument provided by the utility model
It is, 1) coordinating block is brought into close contact with the heat-insulated screen type face of ripple, solves using mating surface during general calipers measurement and heat screen
There is gap in type face, the larger shortcoming of measurement error is higher than conventionally employed vernier caliper measurement precision；2) can be to the ripple of perforate
Being measured along journey position channel height for heat screen, it is practical, solve and be only capable of leading near measurement import and export using clearance gauge
The problem of road height；3) be combined with two corrugated profile coordinating blocks using two cylindrical face coordinating blocks, during use
Constrained and limited on four direction so that gauge head direction is vertical with surface to be measured all the time, solves and uses conventional tool
During measurement caused by artificial sense of vision factor gauge head and measurement surface out of plumb and the measurement error brought；4) coordinating block and hemispherical head
Component uses mode connects for screw, and convenient disassembly can change suitable coordinating block according to the actual type face of heat screen to be measured；5) measuring staff is with surveying
Pin can select the chaining pin and measuring staff of different length using threaded connection, convenient disassembly according to the height of passage to be measured；6) hemispherical head
The chaining pin locating piece of connection is threaded on component, suitable location block can be selected according to chaining pin shape, prevent chaining pin and locating piece
Gap is larger and rocks and brings measurement error.
Brief description of the drawings
Fig. 1 is that elevation carrection instrument each spare part dispersity in the utility model after-burner heat screen cooling duct is shown
It is intended to；
Fig. 2 is the structural representation of the utility model after-burner heat screen cooling duct elevation carrection instrument；
Fig. 3 is the hemispherical head modular construction in the elevation carrection instrument of the utility model after-burner heat screen cooling duct
Schematic diagram；
Fig. 4 is the main scale modular construction in the elevation carrection instrument of the utility model after-burner heat screen cooling duct
Schematic diagram；
Fig. 5 is the vernier scale component and depth in the elevation carrection instrument of the utility model after-burner heat screen cooling duct
Spend chi structural representation；
Fig. 6 shows for the first embodiment of the utility model after-burner heat screen cooling duct elevation carrection instrument
It is intended to；
Fig. 7 shows for second of embodiment of the utility model after-burner heat screen cooling duct elevation carrection instrument
It is intended to.
Reference：
1- slide measures part, 2- hemisphere head assembly, 3- cylindricals face coordinating block, 4- corrugated profiles coordinating block, 5- switchings
Section, 6- screws, 7- heat screens, 8- walls, 11- main scales component, 12- vernier scales component, 13- depth gauge rules, 41- hemispherical heads, 42-
Chaining pin locating piece, 111- main scales, 112- contiguous blocks, 131- measuring staffs, 132- chaining pins, 121- vernier scales frame, 122- vernier scales,
123- aids in movable block.
Embodiment
To make the purpose, technical scheme and advantage of the utility model implementation clearer, below in conjunction with the utility model
Accompanying drawing in embodiment, the technical scheme in the utility model embodiment is further described in more detail.In the accompanying drawings, from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Described reality
It is a part of embodiment of the utility model to apply example, rather than whole embodiments.The embodiment described below with reference to accompanying drawing
It is exemplary, it is intended to for explaining the utility model, and it is not intended that to limitation of the present utility model.It is new based on this practicality
Embodiment in type, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of the utility model protection.
After-burner heat screen cooling duct elevation carrection instrument of the present utility model is done into one below in conjunction with the accompanying drawings
Step is described in detail.
As shown in Fig. 2 a kind of after-burner heat screen cooling duct elevation carrection instrument, for measure heat screen 7 with
The distance between wall 8, including slide measure part 1, hemisphere head assembly 2, cylindrical face coordinating block 3, corrugated profile coordinating block
4th, the part of group section 5 five.
Wherein, as shown in figure 1, the slide measure part 1 in the present embodiment includes main scale component 11, is sleeved on main scale
The vernier scale component 12 and the depth gauge rule 13 inside main scale component 11 in the outside of component 11.Main scale component 11 includes two
A main scale 111 in main scale 111 and the contiguous block 112 for connecting two main scale 111, two main scales 111 is carved with
Scale, another main scale 111 is smooth not to have scale, and two main scale 111 is placed in the both sides of depth gauge rule 13, contiguous block 112
To prevent vernier scale component 12 to be sliding out main scale 111, Fig. 4 is referred to.Depth gauge rule 13 include measuring staff 131 and with the measuring staff
131 one end coordinate the chaining pin 132 of socket by screw thread, and the external diameter of chaining pin 132 is according to the Cooling Holes aperture on different heat screens 7
To determine, but the external diameter of chaining pin 132 need to be less than the aperture of Cooling Holes, and the length of measuring staff 131 and chaining pin 132 is according to be measured heat-insulated
Shield the height of 7 cooling ducts to determine.Vernier scale component 12 includes vernier scale frame 121, vernier scale 122 and auxiliary movable block
123, vernier scale frame 121 is sleeved on two main scales 111, at the same the depth gauge rule 13 between two main scales 111 also with vernier scale frame
121 are connected, and vernier scale frame 121 is fixed with two vernier scales 122 by screw 6, and a vernier scale 122 is carved with scale, another vernier scale
The 122 smooth auxiliary movable blocks 123 for not having scale, being additionally provided with for the movement of controlling depth chi 13 on vernier scale frame 121,
As shown in Figure 5.
As shown in figure 3, the hemisphere head assembly 4 in the present embodiment includes hemispherical head 41 and chaining pin locating piece 42, hemispherical head
41 are connected with chaining pin locating piece 42 by screw thread, wherein, hemispherical head 41 is detachably connected by screw 6 with group section 5, is surveyed
Pin locating piece 42 be used for coordinate the Cooling Holes on heat screen 7 to install, and guide the depth gauge rule 13 in slide measure part 1 penetrate every
Heat shielding 7.The part of hemispherical head 41 in hemisphere head assembly 2 is provided with the cylindrical face coordinating block 3 and ripple arranged in right-angled intersection
Line positive block 4, the thickness of cylindrical face coordinating block 3 and corrugated profile coordinating block 4 selects no more than 1mm, the cylindrical
Face coordinating block 3 is placed for the cylindrical face section in heat screen 7 of fitting, and the corrugated profile coordinating block 4 is in heat screen 7 of fitting
Corrugated profile section place, it should be noted that the cooperation in suitable type face can be selected according to the heat-insulated screen type face of different ripples
Block, is shown in Fig. 6 and Fig. 7.
The operating process of the utility model survey tool is described below.Cylindrical face coordinating block 3 is fitted in heat screen 7
Cylindrical face section is placed, and the corrugated profile section in heat screen 7 that corrugated profile coordinating block 4 is fitted is placed, and promotes slide measure portion
The vernier scale component 12 divided in 1 so that the depth gauge rule 13 being connected with the vernier scale component 12 is moved, and the depth gauge rule 13 is sequentially passed through
Group section 5, hemispherical head 41, the Cooling Holes penetrated under the guiding of chaining pin locating piece 42 on heat screen 7, and be in contact with wall 8,
Now the reading on slide measure part 1 is the distance between heat screen 7 and wall 8 (i.e. length in Fig. 2 at H).
It is described above, embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art is in the technical scope that the utility model is disclosed, the change that can be readily occurred in
Change or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with described
Scope of the claims is defined.
Claims (6)
1. a kind of after-burner heat screen cooling duct elevation carrection instrument, for measuring between heat screen (7) and wall (8)
Distance, including slide measure part (1), the slide measure part (1) is internally provided with depth gauge rule (13), it is characterised in that
Also include hemisphere head assembly (2), cylindrical face coordinating block (3), corrugated profile coordinating block (4), group section (5), slide measure portion
The one end for dividing (1) to be provided with depth gauge rule (13) is connected by group section (5) with hemisphere head assembly (2), is pacified in hemisphere head assembly (2)
Equipped with the cylindrical face coordinating block (3) arranged in right-angled intersection and corrugated profile coordinating block (4), wherein, cylindrical face coordinating block
(3) placed for the cylindrical face section in heat screen (7) of fitting, corrugated profile coordinating block (4) is in heat screen (7) of fitting
Corrugated profile section is placed；Depth gauge rule (13) in moving cursor slide calliper rule part (1), pass through hemisphere head assembly (2) penetrate every
Heat shielding (7), and be in contact with wall (8).
2. after-burner heat screen cooling duct elevation carrection instrument according to claim 1, it is characterised in that described
Hemisphere head assembly (2) includes hemispherical head (41) and chaining pin locating piece (42), the hemispherical head (41) and the chaining pin locating piece
(42) it is connected by screw thread, wherein, the hemispherical head (41) is detachably connected by screw (6) with the group section (5),
The chaining pin locating piece (42) is used to coordinate the Cooling Holes on the heat screen (7) to install, and guides the slide measure part
(1) depth gauge rule in penetrates the heat screen (7).
3. after-burner heat screen cooling duct elevation carrection instrument according to claim 1, it is characterised in that described
Slide measure part (1) includes main scale component (11), the vernier scale component (12) being sleeved on the outside of the main scale component (11)
And positioned at the internal depth gauge rule (13) of the main scale component (11), wherein, the vernier scale component (12) and the depth gauge rule
(13) it is connected, by sliding the vernier scale component (12) and then controlling the depth gauge rule (13) into the depth of the heat screen (7)
Degree.
4. after-burner heat screen cooling duct elevation carrection instrument according to claim 3, it is characterised in that described
Main scale component (11) includes two main scales (111) and connects the contiguous block (112) of two main scale (111), wherein, this two
A main scale (111) in main scale (111) is carved with scale, and another main scale (111) is smooth not to have scale, and this two
Main scale (111) is placed in the depth gauge rule (13) both sides, and the contiguous block (112) is to prevent the vernier scale component (12)
It is sliding out the main scale (111).
5. after-burner heat screen cooling duct elevation carrection instrument according to claim 3, it is characterised in that described
Depth gauge rule (13) includes measuring staff (131), and coordinates the chaining pin (132) of socket by screw thread with measuring staff (131) one end, its
In, the external diameter of the chaining pin (132) is less than the aperture of Cooling Holes on the heat screen (7).
6. after-burner heat screen cooling duct elevation carrection instrument according to claim 1, it is characterised in that described
Cylindrical face coordinating block (3) and the thickness of the corrugated profile coordinating block (4) are no more than 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720141346.2U CN206514768U (en) | 2017-02-16 | 2017-02-16 | A kind of after-burner heat screen cooling duct elevation carrection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720141346.2U CN206514768U (en) | 2017-02-16 | 2017-02-16 | A kind of after-burner heat screen cooling duct elevation carrection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206514768U true CN206514768U (en) | 2017-09-22 |
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ID=59867411
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720141346.2U Active CN206514768U (en) | 2017-02-16 | 2017-02-16 | A kind of after-burner heat screen cooling duct elevation carrection instrument |
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| CN (1) | CN206514768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108052694A (en) * | 2017-11-15 | 2018-05-18 | 中国航发沈阳发动机研究所 | Stealth after-burner inner cone design method |
-
2017
- 2017-02-16 CN CN201720141346.2U patent/CN206514768U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108052694A (en) * | 2017-11-15 | 2018-05-18 | 中国航发沈阳发动机研究所 | Stealth after-burner inner cone design method |
| CN108052694B (en) * | 2017-11-15 | 2021-01-19 | 中国航发沈阳发动机研究所 | Design method of inner cone of stealth afterburner |
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