CN112428210A - Flat model taking-out device in supersonic rectangular turbulent flow conduit - Google Patents
Flat model taking-out device in supersonic rectangular turbulent flow conduit Download PDFInfo
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- CN112428210A CN112428210A CN202011324087.XA CN202011324087A CN112428210A CN 112428210 A CN112428210 A CN 112428210A CN 202011324087 A CN202011324087 A CN 202011324087A CN 112428210 A CN112428210 A CN 112428210A
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- 238000000605 extraction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 238000012360 testing method Methods 0.000 abstract description 8
- 238000002679 ablation Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 4
- 239000007779 soft material Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 241000755266 Kathetostoma giganteum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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Abstract
The invention relates to the technical field of mechanical equipment. A device for taking out a flat plate model in a supersonic rectangular turbulent flow conduit comprises a hydraulic mechanism, an expansion part, a bearing bracket and a supporting part; the hydraulic mechanism is hinged with the end parts of the two oppositely arranged bearing supports, and the telescopic end of the hydraulic mechanism is connected with an expansion part; the expansion part is arranged between the two bearing brackets, wherein the expansion part is arranged at the connecting end of the two bearing brackets and the hydraulic mechanism after the telescopic end of the hydraulic mechanism is retracted into the hydraulic mechanism; after the telescopic end of the hydraulic mechanism extends, the expansion part is arranged in the middle of the two bearing brackets; one end of the bearing support far away from the hydraulic mechanism is hinged with a supporting part. The method solves the problems that the existing method for taking out the flat plate model in the turbulent flow conduit is low in efficiency and complex in operation, damages the surface appearance of the model due to the fact that crow bars, cutters and the like are needed in the operation process, and the like, and has the advantages of being simple in structure, convenient to operate, free of damage to the surface appearance of the test model and the like.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a device for taking out a flat plate model in a supersonic rectangular turbulent flow conduit, and specifically relates to a tool for taking out the flat plate model in the turbulent flow conduit.
Background
The surface of any high-speed aircraft is inevitably provided with some projections or gaps, such as window steps and the like, and during high-Mach-number flight, due to separation and subsequent reattachment possibly generated by airflow around the surface, shock wave-boundary layer interference is generated, local area overheating and ablation are accelerated, and even the thermal protection layer burns through and the warhead is damaged. In ground tests, the ultrasonic turbulent flat plate ablation test technology is often adopted to research ablation heat protection of local areas. During the test, the flat model is arranged in the rectangular turbulent flow conduit to form one side wall of the conduit, and in order to ensure the air tightness of the device, high-temperature glue and the like are often used for repairing the gap. In the test process, the high-temperature pneumatic thermal environment can not only cause the model to expand and increase the volume, but also cause the high-temperature glue to be rapidly cured, so that the model and the side wall of the conduit are firmly adhered together. Therefore, mold removal after the test is difficult.
The common method for taking out the model is to cut off the high-temperature glue between the model and the inner wall of the conduit by a blade, then extend the model inwards from the outlet of the conduit by a tool such as a flat-head crow bar and pry the model out forcibly. Because of the expansion of the model, the gap between the model and the inner wall of the conduit is very small, and the blade cannot extend into the conduit frequently; in addition, the high-temperature glue is solidified to enable the adhesion between the model and the inner wall of the catheter to be very strong, and in the process of prying the model by a prying bar, one end of the prying bar can act on the surface of the model, so that the damage to the appearance of the ablated model cannot be avoided, and the interference to subsequent test analysis is caused.
Disclosure of Invention
The invention aims to provide a device for taking out a flat plate model in a supersonic turbulent conduit, which can solve the problems of complicated operation, long time consumption, low efficiency and damage to the ablation appearance of the surface of a model due to the action of force in the existing process for taking out the flat plate model in the turbulent conduit.
The invention provides a device for taking out a flat plate model in a supersonic rectangular turbulent flow conduit, which is characterized by comprising a hydraulic mechanism, an expansion part, a bearing bracket and a supporting part, wherein the hydraulic mechanism is arranged on the support part; the hydraulic mechanism is hinged with the end parts of the two oppositely arranged bearing supports, and the telescopic end of the hydraulic mechanism is connected with an expansion part; the expansion part is arranged between the two bearing brackets, and when the telescopic end of the hydraulic mechanism extends, the expansion part extrudes the two bearing brackets, and the two bearing brackets are far away from each other; and one end of the bearing support far away from the hydraulic mechanism is hinged with a supporting part.
Wherein the hydraulic mechanism includes: the hydraulic device comprises a handle, a pressure relief nut, a hydraulic cylinder, a hydraulic support, a pressure rod piston and a hydraulic rod; the hand-held handle is arranged at one end of the hydraulic cylinder, and the other end of the hydraulic cylinder is the telescopic end; the lateral wall of pneumatic cylinder is equipped with pressure release nut, depression bar piston and hydraulic support, and hydraulic support is articulated with the hydraulic stem, the depression bar piston is connected on the hydraulic stem.
The hydraulic support and the pressure rod piston are arranged adjacently.
Wherein the expansion part is a conical expansion head; the conical end of the expansion part is connected with one side of the two adjacent bearing brackets.
The bearing support comprises a lower bearing support and an upper bearing support; the lower bearing support and the upper bearing support are arranged at intervals at one end close to the hydraulic mechanism, and the interval distance is the distance of the outer diameter of the expansion part; the middle parts of the lower bearing support and the upper bearing support are overlapped, and the distance between one ends of the lower bearing support and the upper bearing support, which are close to the hydraulic mechanism, and the middle parts of the lower bearing support and the upper bearing support is gradually reduced.
Wherein, the upper bearing bracket is provided with a slot; when the middle parts of the lower bearing support and the upper bearing support are overlapped, the middle part of the lower bearing support and one end provided with the supporting part are arranged in the slot.
Wherein the support part comprises a lower support plate and an upper support plate; the lower supporting plate and the upper supporting plate are both in a shape of a letter 21274; the v-shaped side wall of the lower supporting plate is hinged with a lower supporting bracket; the v-shaped side wall of the upper supporting plate is hinged with an upper supporting bracket; the distance between the opposite walls of the slot is greater than the distance between the opposite walls of the lower support plate.
The contact ends of the lower supporting plate and the upper supporting plate and the rectangular turbulent flow guide pipe are provided with grooves; be equipped with the buffer layer in the recess to the buffer layer is higher than backup pad surface 3 ~ 4 mm.
The device for taking out the flat plate model in the supersonic rectangular turbulent flow conduit has the beneficial effects that:
(1) the invention has simple structure and convenient operation, the supporting part is directly extended into the rectangular turbulent flow conduit, the model can be easily taken out from the rectangular turbulent flow conduit by adopting the thrust generated by the hydraulic device, and the additional operation is not needed by other tools in the operation process.
(2) The upper supporting plate adopts a U-shaped frame structure, has small contact area with the ablation surface of the model, and is stressed uniformly; in addition, soft materials can be filled in the grooves of the supporting plate, so that the damage of the operation process to the ablation surface appearance of the model can be effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a non-operating configuration of a flat plate pattern extraction device in a supersonic rectangular turbulent flow conduit according to the present invention;
FIG. 2 is a structural view of the working state of the device for taking out a flat plate model in a supersonic rectangular turbulent conduit according to the present invention.
Description of reference numerals:
1. a hand-held handle; 2. a pressure relief nut; 3. a hydraulic cylinder; 4. a conical expansion head; 5. a lower bearing bracket; 6. a lower support plate; 7. an upper support plate; 8. an upper support bracket; 9. a hydraulic support; 10. a compression bar piston; 11. a hydraulic lever; 12. a slot; 13. a telescopic end; 14. a connecting rod.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, the device for taking out a flat plate model in a supersonic rectangular turbulent conduit comprises a hydraulic mechanism, an expansion part, a bearing bracket and a supporting part; the hydraulic mechanism is hinged with the end parts of the two oppositely arranged bearing supports, and the telescopic end 13 of the hydraulic mechanism is connected with an expansion part; the expansion part is arranged between the two bearing brackets, wherein after the telescopic end 13 of the hydraulic mechanism is retracted into the hydraulic mechanism, the expansion part is arranged at the connecting end of the two bearing brackets and the hydraulic mechanism; after the telescopic end 13 of the hydraulic mechanism is extended, the expansion part is arranged in the middle of the two supporting brackets; and one end of the bearing support far away from the hydraulic mechanism is hinged with a supporting part.
Specifically, the hydraulic mechanism includes: the hydraulic pressure relief device comprises a handheld handle 1, a pressure relief nut 2, a hydraulic cylinder 3, a hydraulic support 9, a pressure rod piston 10 and a hydraulic rod 11; the handheld handle 1 is arranged at one end of the hydraulic cylinder 3, and the other end of the hydraulic cylinder 3 is the telescopic end 13; the lateral wall of pneumatic cylinder 3 is equipped with pressure release nut 2, depression bar piston 10 and hydraulic support 9, and hydraulic support 9 is articulated with hydraulic stem 11, depression bar piston 10 is connected on hydraulic stem 11.
The hydraulic mechanism provides power for the extension and retraction of the telescopic end 13, and the telescopic end 13 is connected with the conical expansion head 4; when the telescopic end 13 is extended and contracted, the conical expansion head 4 is extended and contracted accordingly. When the telescopic end 13 is extended, the conical expansion head 4 is supported on the two bearing supports, so that the two bearing supports are separated.
One end of a hydraulic rod 11 is hinged on the hydraulic support 9, and during the reciprocating motion of the hydraulic rod 11 far away from and close to the hydraulic cylinder 3, a compression rod piston 10 connected with the hydraulic rod 11 applies work to the hydraulic cylinder 3, so that a telescopic end 13 in the hydraulic cylinder 3 extends out. When the telescopic end 13 needs to be retracted, the pressure relief nut 2 is opened to relieve pressure of the hydraulic cylinder 3, and the telescopic end 13 retracts.
The handheld handle 1 is convenient for a worker to hold.
Specifically, the hydraulic support 9 and the compression rod piston 10 are arranged adjacently.
In the reciprocating movement of the hydraulic rod 11 away from and toward the hydraulic cylinder 3, the rod piston 10 connected to the hydraulic rod 11 is also reciprocated relative to the hydraulic cylinder 3.
Specifically, the expansion part is a conical expansion head 4; the conical end of the expansion part is connected with one side of the two adjacent bearing brackets.
The expansion part comprises two parts, wherein one part is triangular in section, and the other part is rectangular; the two parts are combined into a conical expansion head 4; when the tapered end is far away from the hydraulic cylinder 3, force is applied to the upper expansion frame and the lower expansion frame, so that the two expansion frames move towards each other.
Specifically, the bearing support comprises a lower bearing support 5 and an upper bearing support 8; the lower bearing support 5 and the upper bearing support 8 are arranged at intervals at one end close to the hydraulic mechanism, and the interval distance is the distance of the outer diameter of the expansion part; the middle parts of the lower bearing support 5 and the upper bearing support 8 are overlapped, and the distance between one ends of the lower bearing support 5 and the upper bearing support 8 close to the hydraulic mechanism and the middle part is gradually reduced.
Lower bearing support 5 and last bearing support 8 are close to the partial contact toper expansion head 4 between hydraulic pressure mechanism end and the middle part, toper expansion head 4 exerts force to lower bearing support 5 and last bearing support 8, when the rectangle end of toper expansion head 4 moved to lower bearing support 5 and last bearing support 8 middle part, lower bearing support 5 and last bearing support 8 interval reach the biggest stroke, and then lower supporting plate 6 and last supporting plate 7 that lower bearing support 5 and last bearing support 8 are connected respectively reach the maximum distance.
One end of the bearing bracket close to the hydraulic mechanism is hinged with a connecting rod 14; the end of the connecting rod 14 remote from the support bracket is fixed on the end face of the hydraulic mechanism.
Specifically, the upper supporting bracket 8 is provided with a slot 12; when the middle parts of the lower bearing support 5 and the upper bearing support 8 are overlapped, the middle part of the lower bearing support 5 and one end provided with a supporting part are arranged in the slot 12.
The existence of slot 12 makes under bearing support 5 and last bearing support 8 both can partially overlap, when inserting rectangle torrent pipe, can have littleer thickness, and the required gap of rectangle torrent pipe slightly is greater than the thickness of last bearing support 8 and can insert the gap of rectangle torrent pipe with lower bearing support 5 and last bearing support 8, struts lower bearing support 5 and last bearing support 8 through toper expansion head 4.
Specifically, the support part comprises a lower support plate 6 and an upper support plate 7; the lower supporting plate 6 and the upper supporting plate 7 are both in a shape of a triangle 21274; the v-shaped side wall of the lower supporting plate 6 is hinged with a lower supporting bracket 5; the v-shaped side wall of the upper supporting plate 7 is hinged with an upper supporting bracket 8; the distance between the opposite walls of the slot 12 is greater than the distance between the opposite walls of the lower support plate 6.
Specifically, grooves are formed in the contact ends of the lower supporting plate 6 and the upper supporting plate 7 and the rectangular turbulent flow guide pipe; the buffer layer is arranged in the groove and is 3-4 mm higher than the surface of the upper supporting plate 7.
The cushioning layer may be made of a soft material such as rubber.
Specifically, the lower supporting bracket 5, the upper supporting bracket 8, the lower supporting plate 6 and the upper supporting plate 7 are the same in thickness, and the outlet height of the rectangular turbulent flow conduit is preferably 2/3-3/4; the length and width of the upper support plate 7 are preferably smaller than those of the rectangular turbulence conduit by 1-2 mm.
Specifically, all through bolted connection between lower bearing support 5 and bottom suspension fagging 6, last backup pad 7 and last bearing support 8, lower bearing support 5 and the pneumatic cylinder 3.
Specifically, when the conical expansion head 4 is in the non-operating state, the upper surfaces of the lower support bracket 5, the upper support bracket 8, the lower support plate 6 and the upper support plate 7 should be in a completely flush state.
Specifically, the depth of the groove of the upper support plate 7 is preferably 1/3-1/2 of the thickness of the support plate, and the height of the filled soft material is preferably 3-4 mm higher than the surface of the upper support plate 7.
Specifically, the lower bearing support 5, the upper bearing support 8, the lower support plate 6 and the upper support plate 7 are all made of stainless steel materials.
Specifically, the total length of the hand-held handle 1, the hydraulic cylinder 3, the upper supporting bracket 8 and the upper supporting plate 7 should be no more than 300mm so as to be used in a small wind tunnel device.
The invention mainly comprises a hydraulic mechanism, a conical expansion head 4 and a bearing bracket part. The hydraulic mechanism is composed of a handheld handle 1, a pressure relief nut 2, a hydraulic cylinder 3, a hydraulic support 9, a pressure lever piston 10 and a hydraulic rod 11, wherein the handheld handle 1 is installed on the hydraulic cylinder 3, the hydraulic rod 11 is connected with the hydraulic cylinder 3 through the hydraulic support 9 and drives the pressure lever piston 10 to drive the hydraulic cylinder 3 to work, and the tightening and loosening of the pressure relief nut 2 on the hydraulic cylinder 3 can realize the keeping and releasing of the oil pressure in the hydraulic cylinder 3. The conical expansion head 4 is fixed to the hydraulic cylinder 3 and is movable with the hydraulic rod 11 in the hydraulic cylinder 3. The bearing support comprises lower bearing support 5, bottom suspension fagging 6, last bearing support 8 and last backup pad 7, and wherein lower bearing support 5 and last bearing support 8 are fixed on pneumatic cylinder 3, and bottom suspension fagging 6 and last backup pad 7 are installed respectively on lower bearing support 5 and last bearing support 8.
The working principle is as follows:
when the test is finished and the rectangular turbulent conduit inner plate model is removed, the hand-held handle 1 is held, the pressure relief nut 2 is firstly loosened to enable the conical expansion head 4 to retract along with the hydraulic rod 11 in the hydraulic cylinder 3, then the pressure relief nut 2 is screwed down, the positions of the lower support plate 6 and the upper support plate 7 are adjusted, the lower support plate 6 and the upper support plate 7 extend into the conduit to ensure that the lower support plate 6 and the upper support plate 7 are respectively in horizontal contact with the inner wall of the conduit and the surface of the model, the hydraulic cylinder 3 is driven to work by pressing the hydraulic rod 11 to drive the pressure rod piston 10, the conical expansion head 4 moves forwards under the push of the hydraulic rod in the hydraulic cylinder 3 to enable the lower bearing support 5 and the upper bearing support 8 to be opened towards two sides, the upper support plate 7 and the lower support plate 6 respectively and uniformly act a thrust on the inner wall of the plate model and the conduit, thereby, the groove of the upper supporting plate 7 can be filled with soft materials to contact with the surface of the model, so that the damage of the surface appearance of the model caused by direct contact is prevented.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A device for taking out a flat plate model in a supersonic rectangular turbulent flow conduit is characterized by comprising a hydraulic mechanism, an expansion part, a bearing support and a supporting part; the hydraulic mechanism is hinged with the end parts of the two oppositely arranged bearing supports, and the telescopic end of the hydraulic mechanism is connected with an expansion part;
the expansion part is arranged between the two bearing brackets, and when the telescopic end of the hydraulic mechanism extends, the expansion part extrudes the two bearing brackets, and the two bearing brackets are far away from each other;
and one end of the bearing support far away from the hydraulic mechanism is hinged with a supporting part.
2. The flat die extraction device in a supersonic rectangular turbulent conduit according to claim 1, wherein the hydraulic mechanism comprises: the hydraulic device comprises a handle, a pressure relief nut, a hydraulic cylinder, a hydraulic support, a pressure rod piston and a hydraulic rod; the hand-held handle is arranged at one end of the hydraulic cylinder, and the other end of the hydraulic cylinder is the telescopic end; the lateral wall of pneumatic cylinder is equipped with pressure release nut, depression bar piston and hydraulic support, and hydraulic support is articulated with the hydraulic stem, the depression bar piston is connected on the hydraulic stem.
3. The flat die extraction device in a supersonic rectangular turbulent conduit according to claim 2, wherein the hydraulic support and the plunger are disposed adjacent to each other.
4. The flat die extraction device in a supersonic rectangular turbulent conduit according to claim 1, wherein the expansion part is a conical expansion head; the conical end of the expansion part is connected with one side of the two adjacent bearing brackets.
5. The apparatus of claim 1, wherein the support frame comprises a lower support frame and an upper support frame; the lower bearing support and the upper bearing support are arranged at intervals at one end close to the hydraulic mechanism, and the interval distance is the distance of the outer diameter of the expansion part; the middle parts of the lower bearing support and the upper bearing support are overlapped, and the distance between one ends of the lower bearing support and the upper bearing support, which are close to the hydraulic mechanism, and the middle parts of the lower bearing support and the upper bearing support is gradually reduced.
6. The device for removing the flat plate model in the rectangular turbulent supersonic flow conduit according to claim 5, wherein the upper supporting bracket is provided with a slot; when the middle parts of the lower bearing support and the upper bearing support are overlapped, the middle part of the lower bearing support and one end provided with the supporting part are arranged in the slot.
7. The flat die removal device in the rectangular turbulent flow conduit of supersonic velocity according to claim 6, wherein the support part comprises a lower support plate and an upper support plate; the lower supporting plate and the upper supporting plate are both in a shape of a letter 21274; the v-shaped side wall of the lower supporting plate is hinged with a lower supporting bracket; the v-shaped side wall of the upper supporting plate is hinged with an upper supporting bracket; the distance between the opposite walls of the slot is greater than the distance between the opposite walls of the lower support plate.
8. The device for removing the flat plate model in the rectangular turbulent flow conduit at the supersonic speed according to claim 7, wherein the contact ends of the lower support plate and the upper support plate with the rectangular turbulent flow conduit are provided with grooves; be equipped with the buffer layer in the recess to the buffer layer is higher than backup pad surface 3 ~ 4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011324087.XA CN112428210A (en) | 2020-11-23 | 2020-11-23 | Flat model taking-out device in supersonic rectangular turbulent flow conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011324087.XA CN112428210A (en) | 2020-11-23 | 2020-11-23 | Flat model taking-out device in supersonic rectangular turbulent flow conduit |
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| Publication Number | Publication Date |
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| CN112428210A true CN112428210A (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011324087.XA Pending CN112428210A (en) | 2020-11-23 | 2020-11-23 | Flat model taking-out device in supersonic rectangular turbulent flow conduit |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB749797A (en) * | 1953-12-31 | 1956-05-30 | Lake & Elliot Ltd | A hydraulically operated reciprocating tool |
| GB817991A (en) * | 1954-05-27 | 1959-08-12 | Sutcliffe Richard Ltd | Improvements in or relating to conveyors |
| EP0005463A1 (en) * | 1978-05-18 | 1979-11-28 | Carrier Corporation | Mechanism and method for extracting tubes |
| US20040031839A1 (en) * | 2002-08-16 | 2004-02-19 | Stanley Fastening Systems, L.P. | Clip applicator tool |
| US20140268134A1 (en) * | 2013-03-15 | 2014-09-18 | Electro Scientific Industries, Inc. | Laser sampling methods for reducing thermal effects |
| CN213731494U (en) * | 2020-11-23 | 2021-07-20 | 中国航天空气动力技术研究院 | Flat model taking-out device in supersonic rectangular turbulent flow conduit |
-
2020
- 2020-11-23 CN CN202011324087.XA patent/CN112428210A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB749797A (en) * | 1953-12-31 | 1956-05-30 | Lake & Elliot Ltd | A hydraulically operated reciprocating tool |
| GB817991A (en) * | 1954-05-27 | 1959-08-12 | Sutcliffe Richard Ltd | Improvements in or relating to conveyors |
| EP0005463A1 (en) * | 1978-05-18 | 1979-11-28 | Carrier Corporation | Mechanism and method for extracting tubes |
| US20040031839A1 (en) * | 2002-08-16 | 2004-02-19 | Stanley Fastening Systems, L.P. | Clip applicator tool |
| US20140268134A1 (en) * | 2013-03-15 | 2014-09-18 | Electro Scientific Industries, Inc. | Laser sampling methods for reducing thermal effects |
| CN213731494U (en) * | 2020-11-23 | 2021-07-20 | 中国航天空气动力技术研究院 | Flat model taking-out device in supersonic rectangular turbulent flow conduit |
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