CN111220342B - High-speed wind tunnel embedded test model throwing mechanism - Google Patents
High-speed wind tunnel embedded test model throwing mechanism Download PDFInfo
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- CN111220342B CN111220342B CN202010189487.8A CN202010189487A CN111220342B CN 111220342 B CN111220342 B CN 111220342B CN 202010189487 A CN202010189487 A CN 202010189487A CN 111220342 B CN111220342 B CN 111220342B
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- guide rail
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- 239000011148 porous material Substances 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The invention discloses a high-speed wind tunnel embedded test model throwing mechanism. The impact device of the throwing mechanism is arranged in a groove I on the upper surface of the model carrier, the throwing device is arranged in a groove II on the lower surface of the model carrier, and the groove I and the groove II are provided with communicated pore channels; the support of the striking device is fixed on the bottom plane of the groove I, a square through hole is formed in the support, a left guide rail block and a right guide rail block are fixed in the square through hole, and a channel between the left guide rail block and the right guide rail block is a guide rail; the hanging rack fixing seat of the throwing device is fixed on the top plane of the groove II, and the upper hanging rack of the six-bar mechanism is fixed on the lower surface of the hanging rack fixing seat; the throwing model is fixed on the front buckle and the rear buckle below the six-bar linkage mechanism; the top end of the guide rod is opposite to the piston of the impact cylinder, the guide rod passes through the guide rail, the pore canal and the upper hanging frame from top to bottom, and the tail end of the guide rod is fixed on the lower hanging frame of the six-bar mechanism; the upper part of the guide rod is provided with a horizontal through hole, and a bayonet lock is inserted in the through hole. The throwing mechanism has compact structure, convenient installation and reliable function.
Description
Technical Field
The invention belongs to the technical field of wind tunnel tests, and particularly relates to a high-speed wind tunnel embedded test model throwing mechanism.
Background
With the appearance of stealth fighter plane, the missile mounting mode is developed from external hanging to embedded missile in plane, and the embedded missile is influenced by the embedded missile cabin of plane at the moment of throwing and separating, so that the missile is easy to contact with plane. In order to meet the wind tunnel test requirements, a high-speed wind tunnel embedded test model throwing mechanism is required to be developed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-speed wind tunnel embedded test model throwing mechanism.
The invention relates to a high-speed wind tunnel embedded test model throwing mechanism which is characterized by comprising a striking device and a throwing device, wherein the upper surface of a model carrier is provided with a slot I, the striking device is arranged in the slot I, the lower surface of the model carrier is provided with a slot II, the throwing device is arranged in the slot II, and a communicating pore canal is arranged between the slot I and the slot II;
the striking device comprises a support, a left guide rail block, a guide rod, a right guide rail block and a compression screw; the support is fixed on the bottom plane of the model carrier groove I through an inner hexagon screw, a square through hole is formed in the support, a left guide rail block and a right guide rail block are fixed in the square through hole, the left guide rail block and the right guide rail block are fixed into a whole through a horizontal compression screw screwed from the side face of the support, and a channel between the left guide rail block and the right guide rail block is a guide rail;
the throwing device comprises a hanging rack fixing seat and a six-bar mechanism, wherein the hanging rack fixing seat is fixed on the top plane of a groove II through a countersunk head screw I, and the front upper hanging rack, the rear lower hanging rack, the lower hanging rack and the front lower hanging rack are sequentially connected through six groups of pin cotter pin sleeve parts to form the six-bar mechanism, and the upper hanging rack is fixed on the lower surface of the hanging rack fixing seat through a countersunk head screw II; a front buckle extends out of the lower front hanging frame, a rear buckle which is symmetrical to the front buckle in front and back is extended out of the lower rear hanging frame, a throwing model is fixed on the throwing device through the front buckle and the rear buckle, and the throwing model is positioned in a groove II of the model carrier;
the top end of the guide rod is opposite to the piston of the impact cylinder, the guide rod passes through the guide rail, the pore canal and the upper hanging frame from top to bottom, and the countersunk head screw III passes through the lower hanging frame from bottom to top to be connected with the tail end of the guide rod; the upper part of the guide rod is provided with a horizontal through hole, and the bayonet lock is horizontally inserted into the through hole of the guide rod from the side surface of the support.
The guide rod is T-shaped, and a disc is arranged at the top end of the guide rod.
The bayonet lock be long and thin round bar, the round bar inserts the position both sides of guide arm and processes there is annular groove.
The compression surfaces of the front buckle and the rear buckle are inclined planes, and protruding flanges are arranged on two sides of each inclined plane.
The initial position of the throwing model in the throwing mechanism of the high-speed wind tunnel embedded test model is arranged in the slot II on the lower surface of the model carrier, so that aerodynamic influence of the slot on the throwing model at the throwing moment can be simulated; the inclined planes and the flanges adopted by the front buckle and the rear buckle can prevent the putting model from shaking left and right; annular grooves machined on two sides of the pre-fracture part of the bayonet lock can reduce the cross-sectional area as far as possible, have the function of the prefabricated stress concentration section, and improve the fracture speed of the bayonet lock.
The high-speed wind tunnel embedded test model throwing mechanism adopts a guide rod in a cylinder impact striking device, the guide rod impacts a throwing model fixed by the throwing device, the throwing model is quickly separated from the throwing device, the motion trail of the separated throwing model is captured through high-speed shooting, and finally, the throwing model separation data is obtained through image analysis.
The high-speed wind tunnel embedded test model throwing mechanism has the advantages of compact structure, convenience in installation and reliable functions, and can accurately simulate the state of embedded missile throwing and separating moment in the wind tunnel.
Drawings
FIG. 1 is a main sectional view of a high-speed wind tunnel embedded test model launching mechanism of the invention;
FIG. 2 is a partial enlarged view of a high-speed wind tunnel embedded test model delivery mechanism of the invention;
FIG. 3 is a cross-sectional view of section A-A of FIG. 1;
FIG. 4 is a three-dimensional exploded view of the high-speed wind tunnel embedded test model delivery mechanism of the present invention;
FIG. 5 is a three-dimensional exploded view of the high-speed wind tunnel embedded test model launch mechanism of the present invention with the model carrier removed;
FIG. 6 is a three-dimensional exploded view of a launch device in a launch mechanism of a high-speed wind tunnel embedded test model of the present invention;
FIG. 7 is a perspective view of a front lower hanger in the high-speed wind tunnel embedded test model delivery mechanism of the invention;
FIG. 8 is a perspective view of a rear lower hanger in the high-speed wind tunnel embedded test model delivery mechanism of the invention;
FIG. 9 is a perspective view of a bayonet lock in the high-speed wind tunnel embedded test model delivery mechanism of the present invention;
FIG. 10 is a wind tunnel installation schematic diagram of the high-speed wind tunnel embedded test model releasing mechanism.
In the figure, 1 a model carrier 2, a model 3, a support 4, a left guide rail block 5, a guide rod 6, a right guide rail block 7, a clamping pin 8, a compression screw 9, an inner hexagon screw 10, a hanger fixing seat 11, a countersunk head screw I12, a countersunk head screw II 13, an upper hanger 14, a front upper hanger 15, a front lower hanger 16, a lower hanger 17, a rear lower hanger 18, a rear upper hanger 19, a pin cotter pin sleeve 20, countersunk head screws III 21, an impact cylinder 22, a support rod 23, a test section middle support 24, a compression surface 25 and a flange.
Detailed Description
The invention is described in detail below with reference to the drawings and examples.
As shown in figures 1-4, the high-speed wind tunnel embedded test model throwing mechanism comprises a striking device and a throwing device, wherein a slot I is formed in the upper surface of a model carrier 1, the striking device is arranged in the slot I, a slot II is formed in the lower surface of the model carrier 1, the throwing device is arranged in the slot II, and a communicating pore canal is formed between the slot I and the slot II;
as shown in fig. 1 to 5, the striking device comprises a support 3, a left guide rail block 4, a guide rod 5, a right guide rail block 6 and a compression screw 8; the support 3 is fixed on the bottom plane of a groove I of the model carrier 1 through an inner hexagon screw 9, a square through hole is formed in the support 3, a left guide rail block 4 and a right guide rail block 6 are fixed in the square through hole, the left guide rail block 4 and the right guide rail block 6 are fixed into a whole through a horizontal compression screw 8 screwed from the side surface of the support 3, and a channel between the left guide rail block 4 and the right guide rail block 6 is a guide rail;
as shown in fig. 1 to 6, the throwing device comprises a hanger fixing seat 10 and a six-bar mechanism, wherein the hanger fixing seat 10 is fixed on the top plane of a groove ii through a countersunk head screw i 11, and a front upper hanger 14, an upper hanger 13, a rear upper hanger 18, a rear lower hanger 17, a lower hanger 16 and a front lower hanger 15 are connected in sequence through six groups of pin cotter pin assemblies 19 to form the six-bar mechanism, and the upper hanger 13 is fixed on the lower surface of the hanger fixing seat 10 through a countersunk head screw ii 12; as shown in fig. 7 and 8, a front buckle extends below the front lower hanging frame 15, a rear buckle which is symmetrical to the front buckle in front and back is extended below the rear lower hanging frame 17, the throwing model 2 is fixed on the throwing device through the front buckle and the rear buckle, and the throwing model 2 is positioned in a groove II of the model carrier 1;
the top end of the guide rod 5 is opposite to the piston of the impact cylinder 21, the guide rod 5 passes through the guide rail, the pore canal and the upper hanging frame 13 from top to bottom, and the countersunk head screw III 20 passes through the lower hanging frame 16 from bottom to top to be connected with the tail end of the guide rod 5; the upper part of the guide rod 5 is provided with a horizontal through hole, and the bayonet lock 7 is horizontally inserted into the through hole of the guide rod 5 from the side surface of the support 3.
The guide rod 5 is T-shaped, and a disc is arranged at the top end of the guide rod 5.
As shown in fig. 9, the bayonet 7 is an elongated round bar, and annular grooves are formed on two sides of the position where the round bar is inserted into the guide bar 5.
The pressing surfaces 24 of the front buckle and the rear buckle are inclined planes, and protruding flanges 25 are arranged on two sides of each inclined plane.
Example 1
As shown in fig. 10, the high-speed wind tunnel embedded test model throwing mechanism is arranged in the high-speed wind tunnel, the tail part of the model carrier 1 is connected with a supporting rod 22, and the supporting rod 22 is connected with a middle support 23 of a test section.
When the throwing model 2 is installed, the guide rod 5 is pushed to the lower limit firstly, the throwing model 2 is contacted with the front clamping and pressing surface 24 of the front lower hanging frame 15 and the rear clamping and pressing surface 24 of the rear lower hanging frame 17 and is positioned in the flanges 25 of the front clamping buckle and the rear clamping buckle, the guide rod 5 is pulled to the upper limit, then the clamping pin 7 sequentially passes through the support 3 and the guide rod 5, finally the guide rod 5 is fixed, and the throwing model 2 is positioned in the groove II of the model carrier 1.
When the high-speed wind tunnel throwing test is performed, after the flow field of the high-speed wind tunnel is stable, the impact cylinder 21 is firstly opened, the guide rod 5 is impacted by the piston of the impact cylinder 21, the guide rod 5 cuts off the bayonet lock 7 downwards, then the bayonet lock moves to the lower limit, the lower hanging frame 16 is pushed, the front lower hanging frame 15 and the rear lower hanging frame 17 in the six-link mechanism are driven to perform rotary movement, and the front buckle of the front lower hanging frame 15 and the rear buckle of the rear lower hanging frame 17 are separated from contact with the throwing model 2, so that the throwing model 2 can realize free flight.
Claims (4)
1. The high-speed wind tunnel embedded test model throwing mechanism is characterized by comprising a striking device and a throwing device, wherein the upper surface of a model carrier (1) is provided with a slot I, the striking device is arranged in the slot I, the lower surface of the model carrier (1) is provided with a slot II, the throwing device is arranged in the slot II, and a communicating pore canal is arranged between the slot I and the slot II;
the striking device comprises a support (3), a left guide rail block (4), a guide rod (5), a right guide rail block (6) and a compression screw (8); the support (3) is fixed on the bottom plane of a groove I of the model carrier (1) through an inner hexagon screw (9), a square through hole is formed in the support (3), a left guide rail block (4) and a right guide rail block (6) are fixed in the square through hole, the left guide rail block (4) and the right guide rail block (6) are fixed into a whole through a horizontal compression screw (8) screwed from the side surface of the support (3), and a channel between the left guide rail block (4) and the right guide rail block (6) is a guide rail;
the throwing device comprises a hanging rack fixing seat (10) and a six-bar mechanism, wherein the hanging rack fixing seat (10) is fixed on the top plane of a groove II through a countersunk head screw I (11), a front upper hanging rack (14), an upper hanging rack (13), a rear upper hanging rack (18), a rear lower hanging rack (17), a lower hanging rack (16) and a front lower hanging rack (15) are sequentially connected through six groups of pin cotter pin assemblies (19) to form the six-bar mechanism, and the upper hanging rack (13) is fixed on the lower surface of the hanging rack fixing seat (10) through a countersunk head screw II (12); a front buckle extends out of the lower part of the front lower hanging frame (15), a rear buckle which is symmetrical to the front buckle in front and back is extended out of the lower part of the rear lower hanging frame (17), a throwing model (2) is fixed on the throwing device through the front buckle and the rear buckle, and the throwing model (2) is positioned in a groove II of the model carrier (1);
the top end of the guide rod (5) is opposite to the piston of the impact cylinder (21), the guide rod (5) passes through the guide rail, the pore canal and the upper hanging frame (13) from top to bottom, and the countersunk head screw III (20) passes through the lower hanging frame (16) from bottom to top to be connected with the tail end of the guide rod (5); the upper part of the guide rod (5) is provided with a horizontal through hole, and the bayonet lock (7) is horizontally inserted into the through hole of the guide rod (5) from the side surface of the support (3).
2. The high-speed wind tunnel embedded test model throwing mechanism according to claim 1, wherein the guide rod (5) is of a T shape, and a disc is arranged at the top end of the guide rod (5).
3. The high-speed wind tunnel embedded test model throwing mechanism according to claim 1, wherein the bayonet lock (7) is an elongated round rod, and annular grooves are formed in two sides of the position of the round rod inserted into the guide rod (5).
4. The high-speed wind tunnel embedded test model throwing mechanism according to claim 1, wherein the pressing surfaces (24) of the front buckle and the rear buckle are inclined surfaces, and protruding flanges (25) are arranged on two sides of each inclined surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010189487.8A CN111220342B (en) | 2020-03-18 | 2020-03-18 | High-speed wind tunnel embedded test model throwing mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010189487.8A CN111220342B (en) | 2020-03-18 | 2020-03-18 | High-speed wind tunnel embedded test model throwing mechanism |
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| Publication Number | Publication Date |
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| CN111220342A CN111220342A (en) | 2020-06-02 |
| CN111220342B true CN111220342B (en) | 2024-04-05 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964861B (en) * | 2020-07-15 | 2022-10-28 | 中国航天空气动力技术研究院 | Experimental device for compensating insufficient vertical acceleration of light model method |
| CN112284674B (en) * | 2020-10-21 | 2021-09-21 | 中国空气动力研究与发展中心超高速空气动力研究所 | Electromagnet hanging and throwing device for hypersonic wind tunnel model free flight test |
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| FR2810734B1 (en) * | 2000-06-21 | 2002-10-04 | Aerospatiale Matra Missiles | DEVICE FOR SUPPORTING A MOTOR FLYING MACHINE IN A BLOWER |
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