CN106197937B - high speed ejection model quick release device - Google Patents
high speed ejection model quick release device Download PDFInfo
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- CN106197937B CN106197937B CN201610473567.XA CN201610473567A CN106197937B CN 106197937 B CN106197937 B CN 106197937B CN 201610473567 A CN201610473567 A CN 201610473567A CN 106197937 B CN106197937 B CN 106197937B
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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
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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
- G01M9/08—Aerodynamic models
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Abstract
The invention discloses a kind of high speed ejection model quick release devices, including：Launching tube；Trigger mechanism comprising：Fixed ring and at least two transmitting pawls, the rear end for emitting pawl is articulated on the periphery wall of fixed ring；Opener, it includes the opening device with transmitting pawl same number, and each opening device includes strut and opens spring, and one end of strut is fixed on the outer surface of launching tube, one end of one end and strut for opening spring connects, and the other end is connected to the front of transmitting pawl；Driving mechanism is connect with fixed ring, and driving fixed ring is moved to by launching tube front opening outside launching tube.Invention not only avoids the collision problem of high speed ejection model and trigger mechanism, eliminates between part the stability of emission system is deformed, improved caused by rigid collision, it is realized simultaneously to ejection model pitching, the adjusting of yaw rate, the reliability for improving test mechanism makes model transmitting have higher repeatability.
Description
Technical field
The present invention relates to model in wind tunnel support and transmitting is launched more particularly to a kind of high speed ejection model quick release
Device belongs to Aerospace Engineering field.
Background technology
Model free flight wind-tunnel technique is a kind of research method of common exploratory flight device unsteady aerodynamic characteristic, this
Class technology has been repeatedly model task service.The basic skills of experiment is in Asia across in super or hypersonic equal wind-tunnel, will be free
Winged model is fixed on the trigger mechanism of wind-tunnel tulwar, and model inversion airflow direction high speed is popped up after stablizing in flow field, and model is short
Meeting free flight in wind-tunnel, at this time shoots model by observation window using high-speed photography in time, can get flight
The posture track of device model free flight, later stage can obtain the dynamic aerodynamic parameter of aircraft by data processing.
By multiple wind tunnel test, the test mechanism of such experiment exposes many problems, includes mainly：
1), transmitting pawl opening efficiency is low, causes to emit pawl and model collision, influences model firing attitude, test failure rate
It is high, with a low credibility.In order to resist the shock loading of wind-tunnel startup, test mechanism emits free flight model packet in pawl in multi-disc,
And in order to ensure that model initial transmissions posture, the comparison that model can all wrap are tight.Model will emit pawl and model together when emitting
Accelerate, the transmitting pawl of original trigger mechanism, which is rotated by self inertia around its shaft, after piston rod reaches extreme limit of travel opens, mould
Type flies out straight.
But carefully study it finds that original mechanism design there are serious irrationalities, this is also tested in test
Card.Original mechanism is opened using the inertial acceleration that transmitting pawl, fixed ring are generated with ejection model relative speed difference, but due to hair
The speed for penetrating pawl direction of ejection wants all standing that could generate inertial acceleration, and since transmitting pawl and model surface are tight fits
, the difference of the two speed necessarily causes the generation of collision, this is inevitable.And found by test of many times verification, by
It is close apart from itself barycenter in transmitting pawl shaft, lead to the arm of force very little of moment of inertia, and inertia force is not that continuous action is being sent out
The power on pawl is penetrated, but in the of short duration existing power of transmitting coda, and experiments have shown that the action time of inertia force is about 0.5 milli
Second, all these parameters all illustrate that moment of inertia is limited to the opening effect for emitting pawl, and which results in what is occurred in experiment
Transmitting pawl opens extremely inefficient problem.And the emission rate of model is about 15m/s in supersonic flow field, and high-speed photography is clapped
Take the photograph picture display transmitting pawl to be opened within the millisecond magnitude time just will not interference model posture, this require transmitting pawl inertia
Torque very big will could be realized.Original mechanism different design closes the principles of science, while, moment of inertia short there is also action time
The transmitting pawl that the problems such as not big enough results in original trigger mechanism easily collides with model, causes test failure.This becomes
The problem that original mechanism can not overcome, test mechanism must improve.
2), rigid impact causes part deformation, mechanical stability poor.When original each model of mechanism emits, steel piston
All occur with copper cylinder front pods rigid impact found to reach deceleration purpose, after test of many times rigid impact cause piston and
Cylinder front pods endoporus all deforms, and is interfered between part, and piston motion resistance becomes larger or even stuck, this leads to mechanism
Stability is poor, and model emission effciency is lower, and use is extremely inconvenient, needs to improve.
3), model firing attitude is single, cannot meet more polytypic mission requirements.Original mechanism can only be by model according to solid
Fixed attitude angle pops up forward, and more and more model tasks need model not only to have centainly during free flight
Initial angle, it is also necessary to there is certain angular speed, and original mechanism cannot reach this target, need to improve.
4), model emission rate repeatability is not high, influences test effect, even and if master cylinder piston bar bleed pressure very
It can all seem in the case of height and lack of staying power, original mechanism needs to improve.In order to more preferably pick out model by aerodynamic force, every time
Us are tested to be intended to that picture as much as possible can be photographed.Concrete form is：Model reach observation window most leading edge when and wind-tunnel
Relative velocity is reduced to 0, then slowly to observation window rear backward.This model flight pattern needs model emission rate to have
Very high multiplicity.
Invention content
It is an object of the invention to solve at least the above, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of high speed ejection model quick release devices, not only avoid high speed
The problem of launching the collision of model is eliminated and is deformed caused by rigid collision between moving parts, improve emission system
Stability, while the adjusting to the pitching, yaw rate of launching model is realized, the reliability of test mechanism is improved, is made
Model transmitting has higher repeatability.
In order to realize these purposes and other advantages according to the present invention, a kind of high speed ejection model quick release is provided
Device, including：
Launching tube；
Trigger mechanism, movable setting is in the launching tube；
The trigger mechanism includes：Fixed ring and at least two transmitting pawls, for any one transmitting pawl, the transmitting pawl
Rear end be articulated in the fixed ring, front end be free end, wherein when described two transmitting pawls are located in the launching tube
When portion, described two transmitting pawl fastening ejection models；
Opener comprising the opening device with transmitting pawl same number, each opening device include a strut and one
Spring is opened, the strut is located at outside the launching tube, and one end of which is fixed on the launching tube, the other end is to far from described
Launching tube direction extends, and described one end for opening spring is connect with one end of the strut, and the other end is connected to the transmitting
The front of pawl；And
Driving mechanism is connect with the fixed ring, and the driving mechanism is for driving the trigger mechanism by the hair
Outside shooting cylinder internal motion to the launching tube, wherein described to open when the trigger mechanism is to the launching tube external movement
The transmitting pawl is pulled away from the ejection model by opening device.
Preferably, in the high speed ejection model quick release device, further include：Angular speed regulating mechanism is used
In the angular speed for adjusting the ejection model；
The angular speed regulating mechanism includes：Adjusting block adjusts cushion block and adjusting rod；
, and the mounting hole with the spacer block-shaped to matched mounting hole is offered in the middle part of the fixed ring
Internal thread is provided on internal perisporium；
It is provided with and the matched external screw thread of the internal thread of the mounting hole, the adjusting on the periphery wall for adjusting cushion block
Cushion block is spindle rotationally arranged in the mounting hole, and movement slots are opened up on the adjusting cushion block, and the adjusting block is movable to be set
It sets in movement slots, the front of the adjusting block is provided with fin, when the ejection model is mounted on the trigger mechanism
When, the fin is supported in ejection model tail portion；
The movable setting of the adjusting rod is on the adjusting cushion block, and one end of the adjusting rod is connected to the tune
In locking nub, regulate and control position of the adjusting block in the movement slots.
Preferably, in the high speed ejection model quick release device, the angular speed regulating mechanism further includes adjusting
Save spring；
The adjusting block is the H-shaped adjusting block for including a pair of of vertical portion and a horizontal part, the front setting of the horizontal part
There is the fin, and be provided with the boss upwardly extended on the upper surface of the horizontal part, the adjustment spring is set in described
Outside boss, and the length of the adjustment spring in a free state is more than the length of the boss；
Pair of sliding slot is offered on the top edge of the movement slots and lower edge respectively, and in the top of the movement slots
The lower surface of edge offers blind hole, and the perforation lower edge is offered on the lower edge of the movement slots and setting is female
Through-hole, the pair of vertical portion are located in the pair of sliding groove, and the top of the adjustment spring is located in the blind hole；
Be provided on the outer surface of the adjusting rod with the matched external screw thread of the internal thread of the through-hole, the adjusting rod
One end passes through the through-hole, supports in the lower surface of the horizontal part.
Preferably, in the high speed ejection model quick release device, the driving mechanism includes：Cylinder, voltage stabilizing
Block and cylinder back cover；
The cylinder includes outer barrel, piston rod and piston, and the outer barrel is sealed cylinder, and the piston is arranged in institute
State in outer barrel, and the periphery wall of the piston is contacted with the internal perisporium of the outer barrel, one end of the piston rod with it is described
Piston connects, and the other end is pierced by the outer barrel and is connect with the fixed ring；
The regulator block is arranged in the outer barrel, and is fixed on the rear portion of the outer barrel, is set on the regulator block
It is equipped with external the first air admission hole with inside the outer barrel of connection, in the end set of the regulator block and the piston contact
It is fluted；
The cylinder back cover is set in the rear portion of the outer barrel, and third air admission hole, institute are offered on the cylinder back cover
The nearly stomata of third is stated to be connected to first air admission hole.
Preferably, in the high speed ejection model quick release device, be provided on the outer barrel with it is described outer
At least one venthole of inner barrel connection, and the venthole is close to the trigger mechanism.
Preferably, further include triggering cylinder in the high speed ejection model quick release device comprising：Cylinder
Protecgulum and bar of pulling pin；
At least one card slot is offered on the outer surface of the piston rod；
The air cylinder front cover is set in the outside of the outer barrel and the launching tube, offers and pulls out on the air cylinder front cover
Pin hole and the second air admission hole；
It is arranged with cylindrical chuck on the bar of pulling pin, the bar of pulling pin is divided into pulling pin by the chuck top and pulls pin
Lower part；
The movable setting of the bar of pulling pin is in the hole of pulling pin, and the periphery wall of the chuck is pulled pin with described
The internal perisporium in hole contacts, and the lower part of pulling pin is pierced by the hole of pulling pin, and holding is in the card slot；
Second air admission hole is connected to the hole lower part of pulling pin, wherein gas enters institute from second air admission hole
Hole of pulling pin, the upper top chuck are stated, the bar of pulling pin moves upwards, and the lower part of pulling pin is far from card slot.
Preferably, in the high speed ejection model quick release device, the triggering cylinder further includes triggering spring
And fastening nut；
The triggering spring is set in the top of pulling pin, and the fastening nut is detachably mounted to pull pin the top in hole
Portion, wherein the diameter of the screw hole of the fastening nut is more than the diameter of the bar cross section of pulling pin, and is less than the chuck cross section
Diameter.
Preferably, in the high speed ejection model quick release device, the strut is fixed on the launching tube
Front.
Preferably, in the high speed ejection model quick release device, the unlatching spring is in a free state
Length it is identical as the length of the strut.
The present invention includes at least following advantageous effect：
The first, transmitting pawl and ejection model collision are avoided, influence of the transmitting pawl to ejection model initial attitude is eliminated,
To greatly improve success of the test rate.Original mechanism is generated using transmitting pawl, fixed ring with ejection model relative speed difference used
Property acceleration open, but since transmitting pawl ejection speed wants all standing that could generate inertial acceleration, and emit pawl and model at this time
The difference of speed necessarily causes to collide, this is inevitable.Improved trigger mechanism is replaced short using lasting spring force
It temporarily acts on and emits the inertia force on pawl to make transmitting pawl effectively open, this so that the initial appearance of model can not only be ensured by emitting pawl
State is not influenced by wind-tunnel shock loading, moreover it is possible to make model fast quick-release in due course under the action of spring continues pulling force
Put, that is, emit pawl rear end leave behind launching tube edge will it is rapid while against air motion, while rotate around its shaft, rather than original
Mechanism like that first inverse air motion, etc. piston rods pause after transmitting pawl rotate around the axis again, improved motion mode reduces
Emit interference of the pawl to model, while pulling force torque arm length is also more much longer than the inertia force arm of force, to increase to the greatest extent
The rotating torque that transmitting pawl is subject to, by improving, the releasing effect for emitting pawl is improved, and avoids the collision of model；
The second, deformation caused by rigid collision between moving parts is eliminated, the stability of emission system is improved.Using one
Cylinder and the pattern that venthole is opened up on the outer barrel of cylinder so that the second half of piston rod movement also forms piston motion,
The final stage of piston rod movement achievees the purpose that automatic retarding by compressed air, rather than rigid collision is slowed down.It protects simultaneously
It demonstrate,proves piston to be discharged from venthole by promotion gas before reaching venthole, piston rod is to accelerate, and ensures the transmitting of model
Speed.Improved design eliminates the caused deformation of rigid collision between part, improves the stability of sleeve mechanism.
Third, the pitching that can adjust ejection model, yaw rate, newly-increased angular speed adjusting block can be with regulating piston
Bar acts on the position of action point of active force on model, achievees the purpose that adjust model pitching, yaw rate；
4th, the reliability for improving test mechanism makes model transmitting have higher repeatability, passes through the voltage stabilizing newly added
Block and triggering cylinder so that the parameters such as model ejection speed are more controllable, improve the repeatability of experiment.
Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is structural schematic diagram of the high speed ejection model quick release device after model is launched in transmitting；
Fig. 2 is sectional view of the high speed ejection model quick release device before model is launched in transmitting；
Fig. 3 is the structural schematic diagram that moment will be unfolded in transmitting pawl of the present invention；
Structural schematic diagram when Fig. 4 is transmitting pawl expansion of the present invention；
Fig. 5 is the schematic diagram of regulator block position of the present invention；
Fig. 6 is structural schematic diagram when piston of the present invention is located at the outer barrel front；
Fig. 7 is the sectional view of triggering cylinder of the present invention；
Fig. 8 is the structural schematic diagram of triggering cylinder of the present invention；
Fig. 9 is the sectional view of angular speed regulating mechanism of the present invention；
Figure 10 is the structural schematic diagram of angular speed regulating mechanism of the present invention.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
As shown in figures 1-4, the present invention provides a kind of high speed ejection model quick release device, including：Launching tube 1, transmitting
Mechanism 2, opener 3 and driving mechanism 5.
1 substantially cylindrical of launching tube, and inner hollow.The movable setting of trigger mechanism 2 is in launching tube 1, transmitting
Mechanism 2 is for launching ejection model 7；Trigger mechanism 2 includes：Fixed ring 21 and at least two emits pawl 22 and 23, to emit pawl
For 22, the rear end of transmitting pawl 22 is articulated in fixed ring 21, and the rear end for specially emitting pawl 22 is articulated in fixation by pin
On ring 21, front end is free end, and a pair of transmitting pawl 22 and 23 is arranged in such a way that front end is expandable in fixed ring 21,
In, when two, which emit pawl 22 and 23, is located at 1 inside of launching tube, two transmitting pawls 22 and 23 are closed state, and fasten ejection
Model 7.
Opener 3 includes the opening device 31 with transmitting pawl same number, and opener 3 is used for when transmitting ejection model
When 7, when transmitting pawl 22 and 23 moves to 1 outside of launching tube, transmitting pawl 22 and 23 is opened, so that whole transmitting pawls is in and opens, solution
Except the fastening to launching model 7, each opening device 31 includes that a strut 311 and one opens spring 312, and the setting of strut 311 exists
One end of the outside of launching tube 1, strut 311 is fixed on launching tube 1, and the other end extends to far from 1 direction of launching tube, opens
The one end for opening spring 312 is connect with one end of strut 311, and the other end is connected to the front of transmitting pawl 22.Driving mechanism 5 is used for
Driving trigger mechanism 2 to 1 external movement of launching tube, driving mechanism 5 with fixed ring 21 from connecting inside launching tube 1, wherein works as hair
When penetrating mechanism 2 to 1 external movement of launching tube, opening device 31 will emit pawl and be pulled away from ejection model 7.
In one embodiment, it as shown in Fig. 1,2,3,4,9 and 10, is also wrapped in high speed ejection model quick release device
Include the angular speed regulating mechanism 4 for adjusting ejection 7 angular speed of model；
Angular speed adjusts 4 mechanisms：Adjusting block 42 adjusts cushion block 41 and adjusting rod 43；
The mounting hole that the middle part setting of fixed ring 21 matches with adjusting 41 shape of cushion block, and set on the internal perisporium of mounting hole
It is equipped with internal thread；
Adjusting to be provided on the periphery wall of cushion block 41 can turn with the matched external screw thread of the internal thread of mounting hole, adjusting cushion block 41
Dynamic setting adjusts in mounting hole and opens up movement slots 411 on cushion block 41, the movable setting of adjusting block 42 is in movement slots 411
In, and the front of adjusting block 42 is provided with fin 424, when launching model 7 on trigger mechanism 2, fin 424 is supported
In 7 tail portion of ejection model, the movable setting of adjusting rod 43 is on adjusting cushion block 41, and one end of adjusting rod 43 is connected to adjusting
On block 42, the other end is located at the outside of movement slots 411, and adjusting rod 43 regulates and controls position of the adjusting block 42 in movement slots 411.
In one embodiment, as shown in Fig. 1,2,3,4,9 and 10, angular speed regulating mechanism 4 further includes adjustment spring
44；
Adjusting block 42 be include a pair of of vertical portion 422 and 423 and one horizontal part 421 H-shaped adjusting block, horizontal part 421
Front is provided with fin 424, and the boss 425 upwardly extended is provided on the upper surface of horizontal part 421,44 sets of adjustment spring
It is located at outside boss 425, and the length of adjustment spring 44 in a free state is more than the length of boss 425；
Pair of sliding slot is offered on the top edge of movement slots 411 and lower edge respectively, and in the top edge of movement slots 411
Lower surface offer blind hole, offer perforation lower edge and the female through-hole of setting on the lower edge of movement slots 411, one
Vertical portion 422 and 423 is located in pair of sliding slot, and the top of adjustment spring 44 is located in blind hole；The appearance of adjusting rod 43
It is provided on face and passes through through-hole with the matched external screw thread of the internal thread of through-hole, one end of adjusting rod 43, support in horizontal part 421
Lower surface.
When adjusting the angular speed of ejection model transmitting, fin can be adjusted by rotation adjusting lever and act on ejection model
The position of ejection point of force application on tail portion, to achieve the purpose that angular velocity is adjusted；It is located in mounting hole by rotation
Cushion block is adjusted, fin can be made to follow rotation, so as to adjust the speed of the pitch angle and yaw angle that launch model.
In one embodiment, as figures 2-6, driving mechanism 5 includes：Cylinder 51, regulator block 52 and cylinder back cover
53；
Cylinder 51 includes outer barrel 511, piston rod 513 and piston 512, and outer barrel 511 is sealed cylinder, and piston 512 is set
It sets in outer barrel 511, and the periphery wall of piston 512 is contacted with the internal perisporium of outer barrel 511, one end of piston rod 513 and work
512 connection of plug, the other end are pierced by outer barrel 511 and are connect with fixed ring 21；Regulator block 52 is arranged in outer barrel 511, and solid
It is scheduled on the rear portion of outer barrel 511, external the first air admission hole with inside outer barrel 511 of connection is provided on regulator block 52, steady
The end set that briquetting 52 is contacted with piston 512 is fluted, when piston 512 is located at the rear portion of outer barrel 511, is connected to
On regulator block 52；
Cylinder back cover 53 is set in the rear portion of outer barrel 511, and third air admission hole, the nearly gas of third are offered on cylinder back cover 53
Hole is connected to the first air admission hole and the first air admission hole with high pressure gas, and high pressure gas enters the first air inlet by third air admission hole
Kong Zhong.
In one embodiment, as shown in Figures 2 and 3, it is provided on outer barrel 511 and is connected to 511 in outer barrel
At least one venthole 514, and venthole 514, close to trigger mechanism, preferably, venthole is two；The setting of venthole
The collision of piston and piston nose can be slowed down.
In one embodiment, further include the triggering cylinder 6 for controlling cylinder driving range as shown in Fig. 2,3,5 and 6,
Triggering cylinder 6 includes：Air cylinder front cover 61 and bar 63 of pulling pin；
At least one card slot 515 is offered on the outer surface of piston rod 513；
Air cylinder front cover 61 is set in the outside of outer barrel 511 and launching tube 1, and hole 62 of pulling pin is offered on air cylinder front cover 61
With the second air admission hole 66；
It pulls pin and is arranged with cylindrical chuck 64 on bar 63, the bar 63 that will pull pin of chuck 64 divides and top and pulls pin down to pull pin
Portion；
The movable setting of bar 63 pull pin in hole 62 of pulling pin, and the periphery wall of chuck 64 and the internal perisporium in hole 62 of pulling pin connect
It touches, lower part of pulling pin is pierced by hole 62 of pulling pin, and holding is in card slot 515；
Second air admission hole 66 is connected to 62 lower part of hole of pulling pin, wherein and gas enters hole 62 of pulling pin from the second air admission hole 66,
Upper top chuck 64, bar 63 of pulling pin move upwards, and lower part of pulling pin is far from card slot 515.
In one embodiment, as shown in Fig. 2,3,4,7 and 8, triggering cylinder 6 further includes triggering spring 65 and fastening spiral shell
Mother 67；
Triggering spring 65 is set in top of pulling pin, and fastening nut 67 is detachably mounted to pull pin the top in hole 62, wherein
The diameter of the screw hole of fastening nut 67 is more than the diameter for 63 cross section of bar of pulling pin, and is less than the diameter of 46 cross section of chuck.
In a kind of implementation, as shown in figures 1-4, strut 311 is fixed on the front of launching tube 1.
In a kind of implementation, as shown in figures 1-4, the length of the length and strut 311 of spring 32 in a free state is opened
Spend it is identical, facilitate open spring installation.
In order to make those skilled in the art that technology disclosed by the invention be more clearly understood, the tool of the present invention is briefly introduced
Body running process：
Before on-test, by rotation adjusting lever, the ejection point of force application that fin acts on ejection model tail portion is adjusted
Position, to achieve the purpose that angular velocity adjust；By rotation be located at mounting hole in adjusting cushion block, can make fin with
With rotation, so as to adjust the speed of the pitch angle and yaw angle that launch model.
When on-test, this high-pressure air source all the way is cut off after a certain amount of high-pressure air source is accessed in cylinder back cover joint,
At this time since bar lower end of pulling pin is located in card slot, holding piston rod locks cylinder, so piston will not move.Work as Flow Field in Wind Tunnel
When starting to ejection model generation startup shock loading, transmitting pawl holds ejection model tightly, ensure that the stabilization for launching model attitude,
After Flow Field in Wind Tunnel is stablized, air source, bar of pulling pin under the action of high pressure gas are connected by gas source connector of pulling pin in the second air admission hole
It is extracted upwards, card slot is left in bar lower end of pulling pin, and releases the braking to piston rod, piston rod forward consolidate by high-speed motion, transmitting pawl
Determine ring and ejection model and angular speed regulating mechanism fast moves in launching tube, due to the presence of launching tube, emits pawl at this time
It cannot open, draw spring constantly to be elongated so opening, while emit pawl and also constantly being drawn the constantly increased drawing of spring by unlatching
Power, as piston moves forward, when the rear end for emitting pawl moves out launching tube, transmitting pawl is no longer by the pact of launching tube
Beam, transmitting pawl at this time can rapidly open under the action of opening the lasting spring force of spring, and be opened when travelling forward,
Until piston rod and 27 speed of trigger mechanism are reduced to 0, transmitting pawl is unfolded already, and ejection model is released quickly, thus from root
Solves collision problem on this.Primary experiment finishes, and Fig. 2~4 are an ejection process.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (9)
1. a kind of high speed ejection model quick release device, which is characterized in that including：
Launching tube；
Trigger mechanism, movable setting is in the launching tube；
The trigger mechanism includes：Fixed ring and at least two transmitting pawls, for any one transmitting pawl, after the transmitting pawl
End is articulated in the fixed ring, and front end is free end, wherein when described two transmitting pawls are located inside the launching tube
When, described two transmitting pawl fastening ejection models；
Opener comprising the opening device with transmitting pawl same number, each opening device include that a strut and one open
Spring, the strut are located at outside the launching tube, and one end of which is fixed on the launching tube, the other end is to far from the transmitting
Cylinder direction extends, and described one end for opening spring is connect with one end of the strut, and the other end is connected to the transmitting pawl
Front；And
Driving mechanism is connect with the fixed ring, and the driving mechanism is for driving the trigger mechanism by the launching tube
Outside internal motion to the launching tube, wherein when the trigger mechanism is to the launching tube external movement, the unlatching dress
It sets and the transmitting pawl is pulled away from the ejection model.
2. high speed ejection model quick release device as described in claim 1, which is characterized in that further include：Angular speed is adjusted
Mechanism is used to adjust the angular speed of the ejection model；
The angular speed regulating mechanism includes：Adjusting block adjusts cushion block and adjusting rod；
It is offered in the middle part of the fixed ring and the block-shaped mounting hole to match of the spacer, and the inner circumferential of the mounting hole
Internal thread is provided on wall；
It is provided with and the matched external screw thread of the internal thread of the mounting hole, the adjusting cushion block on the periphery wall for adjusting cushion block
It is spindle rotationally arranged in the mounting hole, movement slots is opened up on the adjusting cushion block, the movable setting of the adjusting block exists
In movement slots, the front of the adjusting block is provided with fin, when the ejection model is mounted on the trigger mechanism, institute
Fin is stated to support in ejection model tail portion；
The movable setting of the adjusting rod is on the adjusting cushion block, and one end of the adjusting rod is connected to the adjusting block
On, regulate and control position of the adjusting block in the movement slots.
3. high speed ejection model quick release device as claimed in claim 2, which is characterized in that the angular speed regulating mechanism
It further include adjustment spring；
The adjusting block is the H-shaped adjusting block for including a pair of of vertical portion and a horizontal part, and the front setting of the horizontal part is
Fin is stated, and is provided with the boss upwardly extended on the upper surface of the horizontal part, the adjustment spring is set in the boss
Outside, and the length of the adjustment spring in a free state is more than the length of the boss；
Pair of sliding slot is offered on the top edge of the movement slots and lower edge respectively, and in the top edge of the movement slots
Lower surface offers blind hole, and the perforation lower edge is offered on the lower edge of the movement slots and setting is female logical
Hole, the pair of vertical portion are located in the pair of sliding groove, and the top of the adjustment spring is located in the blind hole；
It is provided on the outer surface of the adjusting rod and the matched external screw thread of the internal thread of the through-hole, one end of the adjusting rod
Across the through-hole, support in the lower surface of the horizontal part.
4. high speed ejection model quick release device as described in claim 1, which is characterized in that the driving mechanism includes：
Cylinder, regulator block and cylinder back cover；
The cylinder includes outer barrel, piston rod and piston, and the outer barrel is sealed cylinder, and the piston setting is described outer
In cylinder, and the periphery wall of the piston is contacted with the internal perisporium of the outer barrel, one end of the piston rod and the piston
Connection, the other end are pierced by the outer barrel and are connect with the fixed ring；
The regulator block is arranged in the outer barrel, and is fixed on the rear portion of the outer barrel, is provided on the regulator block
External the first air admission hole with inside the outer barrel of connection, has recessed in the end set of the regulator block and the piston contact
Slot；
The cylinder back cover is set in the rear portion of the outer barrel, offers third air admission hole on the cylinder back cover, and described
Three air admission holes are connected to first air admission hole.
5. high speed ejection model quick release device as claimed in claim 4, which is characterized in that be provided on the outer barrel
At least one venthole being connected to outer barrel inside, and the venthole is close to the trigger mechanism.
6. high speed ejection model quick release device as described in claim 4 or 5, which is characterized in that further include triggering cylinder,
It includes：Air cylinder front cover and bar of pulling pin；
At least one card slot is offered on the outer surface of the piston rod；
The air cylinder front cover is set in the outside of the outer barrel and the launching tube, and hole of pulling pin is offered on the air cylinder front cover
With the second air admission hole；
It is arranged with cylindrical chuck on the bar of pulling pin, the bar of pulling pin is divided into pulling pin by the chuck top and pulls pin down
Portion；
The movable setting of the bar of pulling pin is in the hole of pulling pin, and the periphery wall of the chuck and the hole of pulling pin
Internal perisporium contacts, and the lower part of pulling pin is pierced by the hole of pulling pin, and holding is in the card slot；
Second air admission hole is connected to the hole lower part of pulling pin, wherein gas enters described pull out from second air admission hole
Pin hole, the upper top chuck, the bar of pulling pin move upwards, and the lower part of pulling pin is far from card slot.
7. high speed ejection model quick release device as claimed in claim 6, which is characterized in that the triggering cylinder further includes
Trigger spring and fastening nut；
The triggering spring is set in the top of pulling pin, and the fastening nut is detachably mounted to pull pin the top in hole,
In, the screwhole diameter of the fastening nut is more than the diameter of the bar cross section of pulling pin, and is less than the diameter of the chuck cross section.
8. high speed ejection model quick release device as described in claim 1, which is characterized in that the strut is fixed on described
The front of launching tube.
9. the high speed ejection model quick release device as described in claim 1 or 8, which is characterized in that at the unlatching spring
Length when free state is identical as the length of the strut.
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| CN106197937B true CN106197937B (en) | 2018-09-14 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109668712B (en) * | 2018-12-29 | 2020-08-04 | 中国空气动力研究与发展中心超高速空气动力研究所 | Model launching device and application thereof |
| CN109724768B (en) * | 2018-12-29 | 2020-10-13 | 中国空气动力研究与发展中心超高速空气动力研究所 | Hypersonic wind tunnel model interstage dynamic separation device and application thereof |
| CN110530601B (en) * | 2019-07-31 | 2021-06-11 | 中国航天空气动力技术研究院 | Ejection mechanism for wind tunnel test model |
| CN111186597B (en) * | 2019-12-27 | 2021-06-29 | 湖北航天技术研究院总体设计所 | Double-track hinge device and application method thereof |
| CN112326259A (en) * | 2020-10-20 | 2021-02-05 | 中车青岛四方机车车辆股份有限公司 | Ejection vehicle body unhooking device, vehicle ejection control system and control method |
| CN112985748B (en) * | 2021-05-08 | 2021-07-30 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel test throwing device and method for designing throwing object model thereof |
| CN114414199A (en) * | 2021-12-20 | 2022-04-29 | 中国航天空气动力技术研究院 | Free flight test mechanism of rotatory transmission |
| CN118225372B (en) * | 2024-05-23 | 2024-07-16 | 中国航空工业集团公司沈阳空气动力研究所 | Bullet concurrent matching wind tunnel test tail cover plugging and throwing device |
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