CN110361156A - A kind of test chamber inner core that Mach number is continuously adjustable - Google Patents
A kind of test chamber inner core that Mach number is continuously adjustable Download PDFInfo
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- CN110361156A CN110361156A CN201910777290.3A CN201910777290A CN110361156A CN 110361156 A CN110361156 A CN 110361156A CN 201910777290 A CN201910777290 A CN 201910777290A CN 110361156 A CN110361156 A CN 110361156A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a kind of adjustable test chamber inner cores of Mach number, including top plate, left plate, right side plate, flange, model rotating disk mechanism, shock wave trigger structure and driving mechanism；Shock wave trigger structure includes shock wave plate, and shock wave plate and top plate, left plate and right side plate form hollow cavity, and the front end of hollow cavity is provided with flange；Shock wave plate is connected close to the front end of flange by shock wave shaft assembly shaft, and shock wave plate connects driving mechanism far from the rear end of flange, and driving mechanism drives shock wave plate to be rotated around shock wave shaft assembly；Model rotating disk mechanism includes turntable base, model turntable and the first connecting plate, and one end of the first connecting plate is fixedly connected with the rear end of shock wave plate, and the other end of the first connecting plate is fixedly connected with turntable base.Test section inner core provided by the invention can generate the oblique shock wave of different Angle of Shock Waves by adjusting the turned position of shock wave plate, realize gasflow mach number consecutive variations after wave.
Description
Technical field
This application involves in the continuously adjustable test chamber of wind-tunnel facilities technical field more particularly to a kind of Mach number
Core.
Background technique
With the fast development of China's space flight and aviation cause, the requirement of the rig for testing of air and power is higher and higher, kind
Class is also more and more complete.In the aerodynamic experiment of aerospace flight vehicle, has the wind tunnel test of continuously adjustable Mach number
Ability is most important to studying.In the current generation, air both domestic and external is to utilize the spray of the different velocities of sound from the rig for testing of power
Pipe changes the method for total pressure to obtain corresponding test Mach number.Different Mach number in order to obtain can only pass through test
It replaces the method for jet pipe after the completion to realize, it is continuously adjustable to can not achieve Mach number during primary test.Therefore one is needed
Kind can realize the wind tunnel test equipment for continuously adjusting Mach number during primary test.
Summary of the invention
The present invention provides a kind of adjustable test chamber inner cores of Mach number, to solve or partially solve at this stage
The technical issues of test chamber continuously cannot adjust Mach number during primary test.
In order to solve the above technical problems, the present invention provides the test chamber inner core that a kind of Mach number is continuously adjusted, packet
Include top plate, left plate, right side plate, flange, model rotating disk mechanism, shock wave trigger structure and driving mechanism；
Shock wave trigger structure includes shock wave plate, and shock wave plate and top plate, left plate and right side plate form hollow cavity, hollow cavity
With front-end and back-end, the front end of hollow cavity is provided with flange；
Shock wave plate is connected between left plate and right side plate close to the front end of flange by shock wave shaft assembly shaft, shock wave plate
Rear end far from flange connects driving mechanism, and driving mechanism drives shock wave plate to be rotated around shock wave shaft assembly；
Model rotating disk mechanism includes turntable base, model turntable and the first connecting plate, one end of the first connecting plate and shock wave
The rear end of plate is fixedly connected, and the other end of the first connecting plate is fixedly connected with turntable base；Turntable base turns for installing model
Disk；
The test section of wind-tunnel is fixedly attached to by flange in test chamber inner core, and when test air-flow is blown over, driving
Mechanism drives shock wave plate to be rotated around shock wave shaft assembly, so that shock wave plate generates Angle of Shock Waves continuous variable in hollow cavity
Oblique shock wave, and then control wave after Mach number consecutive variations；Shock wave plate synchronous drive turntable base during rotation, with reality
Now to the synchronous adjustment of model disk position.
Optionally, the upper surface and/or side surface of the first connecting plate are equipped with more than two first connecting holes；
Turntable base is hollow structure, including two blocks of turntable base side plates, plate face of the turntable base side plate in different height
It is equipped with more than two second connecting holes；
Model turntable is equipped with more than one third connecting hole；
The other end of first connecting plate is screwed together with turntable base by the first connecting hole and the second connecting hole；Model
Turntable is screwed together with turntable base by third connecting hole and the second connecting hole.
Optionally, shock wave shaft assembly is two sets, is respectively equipped with the first circular hole, the two sides of shock wave plate on left plate and right side plate
Equipped with the second circular hole, a set of shock wave shaft assembly installs the second circular hole on the left of the first circular hole and shock wave plate to left plate；Separately
A set of shock wave shaft assembly installs the second circular hole on the right side of the first circular hole and shock wave plate to right side plate.
Every set shock wave shaft assembly includes shock wave axis, baffle, axle sleeve, shock wave axle bearing and the first round nut；
It installs to the first circular hole one end of shock wave axis；Shock wave axle bearing is located in the first circular hole, shock wave axle bearing it is interior
Snare is located on shock wave axis；Axle sleeve is installed to shock wave axis, for adjusting relative position of the shock wave axle bearing on shock wave axis；Circle
Nut is mounted on the outside of axle sleeve, is used for axial compression axle sleeve；
The other end of shock wave axis is installed to second circular hole adjacent with the first circular hole, baffle to the other end of shock wave axis into
Row axially fastens.
Optionally, driving mechanism includes motor reducer module, lead screw module, chassis, strut, first axle component,
Two hinge component；
Motor reducer module connects lead screw module, to drive lead screw module horizontal back and forth movement of carry out on chassis；
Lead screw module is equipped with first axle component close to one end of motor reducer module, and the bottom end of strut passes through the first hinge
The top of chain component and lead screw module-articulation, strut is hinged by second hinge component and the rear end of shock wave plate；
When lead screw module carries out horizontal back and forth movement on chassis, existed by the bottom end that first axle component adjusts strut
The relative position of horizontal direction and horizontal sextant angle, and then shock wave plate is controlled around sharp by the top of strut and second hinge component
The rotation of wave axis, to continuously adjust the Angle of Shock Waves of oblique shock wave.
Further, driving mechanism further includes shaft coupling, spacer, front end-plate, end plate；Lead screw module includes lead screw, silk
Thick stick bearing, linear guide, lead screw pressing plate and lantern ring；
Motor reducer module is fixedly attached to front end-plate；The output shaft and silk of shaft coupling connection motor reducer module
Thick stick；
Lead screw bearing is two sets, is mounted respectively to the both ends of lead screw；And it is fixedly connected respectively with front end-plate and end plate；
Spacer installs the one end connecting to lead screw with shaft coupling, for adjusting screw bearing in upper position；
Chassis is trench structure, and the both ends of chassis are connect with front end-plate and end plate respectively, and chassis inner wall two sides are equipped with spiral shell
Hole, for connecting linear guide；
Front end-plate is installed to chassis close to one end of spacer, and the centre of front end-plate is equipped with circular hole, for installing lead screw bearing；
End plate installs the other end to chassis far from spacer, and the centre of end plate is equipped with circular hole, for installing lead screw shaft
It holds；
Lead screw is installed into the circular hole of attachment beam, front end-plate and end plate；
The middle part of attachment beam is equipped with lead screw installation circular hole to install lead screw, end face and first hinge of the attachment beam close to front end-plate
Chain component connection；
Lead screw pressing plate is installed to end plate, for compressing lead screw bearing；
Lantern ring installs the relative position of the lead screw bearing to lead screw end, on the end of adjusting screw；
Linear guide is two sets, is mounted respectively to chassis inner wall two sides, the sliding block of linear guide is installed to attachment beam.
Optionally, test chamber inner core further includes the second connecting plate and hoisting mechanism；
Second connecting plate be two sets or more, be located at top plate top, every the second connecting plate of set respectively with left plate and right side plate
It is fixedly connected；
Hoisting mechanism is two sets or more, is mounted respectively to away from flange on the second farthest connecting plate, and connect top plate,
Hoisting mechanism includes: attachment base, two-direction thrust bearing, bearing plate, screw rod, outer cylinder, promotes axis, dive key, pulling plate, pedestal
And pin shaft；
Attachment base is for connecting hoisting mechanism and the second connecting plate；
Two-direction thrust bearing is installed in attachment base；
Bearing plate is installed to attachment base, for axially fastening for two-direction thrust bearing；
Screw rod is mounted on two-direction thrust bearing, and screw rod upper end is fastened by nut；
It promotes axis to be fixedly connected with screw rod, the outer surface for promoting axis is equipped with dive key；
Outer cylinder is fixedly connected with attachment base, and outer barrel is equipped with sliding keyway；So that dive key is sliding in sliding keyway
It is dynamic；
One end of pedestal is fixedly connected with top plate, and the other end of pedestal is equipped with pin hole；
The one end for promoting the close top plate of axis is equipped with pin hole, and pulling plate both ends are equipped with pin hole；
Pin shaft is each passed through pin hole, promotes axis, pulling plate and pedestal with connection.
Optionally, test chamber inner core is respectively equipped at least a set of first observation window on left plate and/or right side plate
Mechanism, the first observation window mechanism include: the first window frame, inner ring and the first pressure ring；
First window frame is installed to left plate or right side plate；
Inner ring is installed into the first window frame；
First pressure ring is set in the first window frame, and is fixedly connected with the first window frame, to compress inner ring.
It further, further include the second observation window mechanism；Second observation window mechanism is set to top plate or the first observation window mechanism
Inner ring on；Second observation window includes: the second window frame, the second pressure ring and glass；
Second window frame is installed to the inner ring of top plate or the first observation window mechanism；
Second pressure ring is fixedly connected with the second window frame, with pressed glass；
Glass is installed into the second window frame.
Optionally, test chamber inner core further includes two sets or more of wheel mechanism, wheel mechanism install to left plate or
The bottom of right side plate；Wheel mechanism includes: wheel mount, wheel bearing, axletree, wheel and wheel bearing lid；
Wheel mount is fixedly connected with left plate or right side plate；
Wheel bearing is installed to wheel mount；
Axletree is installed to wheel bearing；
Wheel is installed to axletree；
Wheel bearing lid is fixedly connected with wheel mount, is used for axial restraint wheel bearing.
It include as continuously adjustable wind such as the Mach number of any one above-mentioned the present invention also provides a kind of wind tunnel device
Hole test section inner core.
One or more technical solution through the invention, the invention has the advantages that advantage:
The present invention provides a kind of adjustable test chamber inner cores of Mach number, drive shock wave plate to carry out by driving mechanism
Rotation makes to form adjustable Angle of Shock Waves in the test section inner cavity of shock wave plate and top plate, left plate and right side plate formation, when test gas
When stream is blown over, the oblique shock wave of different Angle of Shock Waves can be generated by adjusting the turned position of shock wave plate.With test progress
It promotes, can be with the variation of continuous control shock wave angle by controlling driving mechanism, and then realize Mach number consecutive variations after wave；
On the other hand, at the position of dynamic adjustment shock wave plate, model rotating disk mechanism is connected by an entirety by the first connecting plate,
The position of shock wave plate adjusts the position adjustment of synchronous drive model rotating disk mechanism, no longer needs additionally to increase angle of attack machine at this time
Structure, and it is integrated with angle that shock wave plate adjusts to realize the angle of the test model being mounted on model turntable, improves
The accuracy of wind tunnel test data.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the physical principle figure of oblique shock wave provided in an embodiment of the present invention
Fig. 2 is the continuous main view for becoming Mach number test section inner core provided in an embodiment of the present invention；
Fig. 3 is the continuous left view for becoming Mach number test section inner core provided in an embodiment of the present invention；
Fig. 4 is the continuous top view for becoming Mach number test section inner core provided in an embodiment of the present invention；
Fig. 5 is the continuous axonometric drawing for becoming Mach number test section inner core provided in an embodiment of the present invention；
Fig. 6 is the A-A cross-sectional view in Fig. 3 provided in an embodiment of the present invention；
Fig. 7 is the K-K cross-sectional view in Fig. 6 provided in an embodiment of the present invention；
Fig. 8 is the B-B cross-sectional view in Fig. 2 provided in an embodiment of the present invention；
Fig. 9 is the D-D cross-sectional view in Fig. 3 provided in an embodiment of the present invention；
Figure 10 is the E-E cross-sectional view in Fig. 9 provided in an embodiment of the present invention；
Figure 11 is the H-H cross-sectional view in Fig. 6 provided in an embodiment of the present invention；
Figure 12 is the G-G cross-sectional view in Fig. 4 provided in an embodiment of the present invention；
Figure 13 is the C-C cross-sectional view in Fig. 2 provided in an embodiment of the present invention；
Figure 14 is the F-F cross-sectional view in Fig. 4 provided in an embodiment of the present invention；
Figure 15 is the J-J cross-sectional view in Fig. 6 provided in an embodiment of the present invention；
Description of symbols:
1- flange；2- top plate；3- left plate；4- right side plate；The second connecting plate of 5-；6- third connecting plate；7- wheel mechanism；
8- hoisting mechanism；The second observation window mechanism of 9-；The first observation window mechanism of 10-；11- shock wave plate；12- strut；13- driving mechanism；
14- first axle component；15- shock wave shaft assembly；16- model turntable；17- wheel mount；18- wheel bearing lid；19- axletree；
20- wheel；21- wheel bearing；22- attachment base；23- bearing plate；24- screw rod；25- outer cylinder；26- promotes axis；27- pulling plate；
28- pedestal；29- pin shaft；30- two-direction thrust bearing；The second window frame of 31-；The second pressure ring of 32-；33- glass；The first window frame of 34-；
35- inner ring；The first pressure ring of 36-；37- attachment beam；38- chassis；39- end plate；40- front end-plate；41- motor reducer module；
42- lead screw pressing plate；43- lantern ring；44- shaft coupling；45- spacer；46- lead screw；47- lead screw bearing；48- linear guide；49- hinge
Axis；50- hinged shaft bearing；The second round nut of 51-；52- hinged shaft bearing cap；53- shock wave axis；54- baffle；55- axle sleeve；56- shock wave
Axle bearing；The first round nut of 57-；Connection leg before 58-；Connection leg after 59-；60- dive key；The first connecting plate of 61-；62- turns
Disk support；63- sells screw rod；64- hex nut；65- second hinge component；66- sliding block.
Specific embodiment
In order to make the application the technical staff in the technical field be more clearly understood that the application, with reference to the accompanying drawing,
Technical scheme is described in detail by specific embodiment.
In simple terms, the structure of wind-tunnel can usually be summarized as hole body, drive system and control system, and wherein hole body is divided into receipts
The multiple portions such as contracting section, stable section, test section, wherein test section is that wind-tunnel carries out necessary aerodynamic measurement to model
With the place of observation.It is improved the even straight degree of air-flow, reduce the stable section of turbulence level and air-flow is made to accelerate to institute in test section upstream
Need the contraction section and jet pipe of flow velocity.There is reduction flow velocity in test section downstream, reduces the diffuser of energy loss and guide air-flow into wind
Exhaust section outside hole or the reflux section for being directed back to wind-tunnel entrance.The type of wind-tunnel is divided usually using Mach number Ma: Ma≤0.4
Low-speed wind tunnel；The transonic wind tunnel of Ma=0.4~1.4；The supersonic wind tunnels of Ma=1.5~4.5 and Ma >=5 it is hypersonic
Wind-tunnel.
In the aerodynamic experiment of aerospace flight vehicle, has the wind tunnel test ability of continuously adjustable Mach number to grinding
Study carefully most important.In the current generation, air both domestic and external is before being changed using the jet pipe of the different velocities of sound from the rig for testing of power
The method of room stagnation pressure is to obtain corresponding test Mach number.In order to obtain different Mach numbers, can only by test after the completion of
The method of jet pipe is replaced to realize, therefore it is continuously adjustable to can not achieve Mach number during primary test.On the other hand, more
It changes during jet pipe, worker's larger workload, low efficiency, and the jet pipe occupied ground area of a large amount of different velocities of sound is more, equipment dimension
Protect heavy workload.Based on the above issues, the present invention can generate oblique shock wave when encountering wedgeshaped object using supersonic speed fluid, and flow
For body when by oblique shock wave, Mach number changes this physical principle for jumping is generated, and devising can be continuous in primary test
Change the test chamber inner core of gasflow mach number.Physical principle involved in present embodiment is as shown in Figure 1, in known incoming flow
Mach number M1With deflection angle theta, oblique shock wave angle beta and the Mach number M after shock wave can be calculated2, using continuity equation and
Flow velocity tangential component passes through condition constant when shock wave, available θ-β-M relationship, i.e. θ is represented by M1, β and γ function,
Wherein γ indicates heat capacity ratio:
Gasflow mach number M after oblique shock wave2Then it is
As shown in Fig. 2~Fig. 6, a kind of adjustable test chamber inner core of Mach number, including top plate are present embodiments provided
2, left plate 3, right side plate 4, flange 1, model rotating disk mechanism, shock wave trigger structure and driving mechanism 13；
Shock wave trigger structure includes shock wave plate 11, and shock wave plate 11 and top plate 2, left plate 3 and right side plate 4 form hollow cavity,
Hollow cavity has front-end and back-end, and the front end of hollow cavity is provided with flange 1；
Shock wave plate 11 close to the front end of flange 1 by 15 shaft of shock wave shaft assembly be connected to left plate 3 and right side plate 4 it
Between, shock wave plate 11 connects driving mechanism 13 far from the rear end of flange 1, and driving mechanism 13 drives shock wave plate 11 around shock wave shaft assembly
15 are rotated；
Model rotating disk mechanism includes turntable base 62, model turntable 16 and the first connecting plate 61, and the one of the first connecting plate 61
End is fixedly connected with the rear end of shock wave plate 11, and the other end of the first connecting plate 61 is fixedly connected with turntable base 62；Turntable base
62 for installing model turntable 16；
Wherein, flange 1 is located at the front end of test section inner core, is connected top plate 2, left plate 3 and right side plate 4 by flange 1
It picks up and, be formed together hollow cavity structure with shock wave plate 11, the bolt hole connecting with other equipment is disposed on flange 1, with
Test section inner core is fixedly attached to the test section of wind-tunnel.
Optionally, test section inner core further includes the second connecting plate 5 and third connecting plate 6, and the second connecting plate 5 can be two sets
More than, preferred amount can be six sets, be located at the top of top plate 2, every the second connecting plate of set 5 respectively with left plate 3 and right side plate 4
Top is fixedly connected, the mode that can be connected by screw bolts and be threadedly coupled；Third connecting plate 6 can be two sets or more, preferably
Quantity can be four sets, and third connecting plate 6 is located at the bottom of test section inner core, the mode for being bolted or being threadedly coupled with
The bottom of left plate 3 or right side plate 4 is fixedly connected.A left side for test section inner core can be improved in second connecting plate 5 and third connecting plate 6
The connective stability of side plate 3 and right side plate 4.
When carrying out wind tunnel test, test chamber inner core is fixedly attached to the test section of wind-tunnel by flange 1, and try
When testing air-flow and blowing over, driving mechanism 13 drives shock wave plate 11 to be rotated around shock wave shaft assembly 15, so that shock wave plate 11 is in
The oblique shock wave of Angle of Shock Waves continuous variable is generated in cavity body, and then controls the consecutive variations of Mach number after wave；Shock wave plate 11 is turning
Synchronous drive turntable base 62 during dynamic, to realize the synchronous adjustment to 16 position of model turntable.
Shock wave plate 11 can be rectangular shape, for the needs of adequacy test, the length of shock wave plate 11 at 2.4 meters or more,
Width is adjusted according to the spacing between the left side plate of test section inner core.Shock wave plate 11 can choose metal material, such as steel or aluminium,
Here it is not especially limited, the adjustable extent of the horizontal sextant angle of shock wave plate 11 can be 0~15 °.
Present embodiments provide a kind of adjustable test chamber inner core of Mach number, by driving mechanism drive shock wave plate into
Row rotation makes to form adjustable Angle of Shock Waves in the test section inner cavity of shock wave plate and top plate, left plate and right side plate formation, works as test
When air-flow is blown over, the oblique shock wave of different Angle of Shock Waves can be generated by adjusting the turned position of shock wave plate.With test progress
Ground promotes, can be with the variation of continuous control shock wave angle by controlling driving mechanism, and then gasflow mach number is continuous after realization wave
Variation；On the other hand, at the position of dynamic adjustment shock wave plate, model rotating disk mechanism is connected into one by the first connecting plate
Whole, the position of shock wave plate adjusts the position adjustment of synchronous drive model rotating disk mechanism, no longer needs additionally to increase at this time and attack
Angle mechanism, and it is integrated with angle that shock wave plate adjusts to realize the angle of the test model being mounted on model turntable, mentions
The high accuracy of wind tunnel test data；Meanwhile it is simple and practical using Mach number process after shock wave trigger structure adjusting wave, with replacement
Jet pipe is compared, and the maintenance workload of free air facility can be significantly reduced.
Same principle based on the above embodiment, in another embodiment, as shown in fig. 6,
The upper surface and/or side surface of first connecting plate 61 are equipped with more than two first connecting holes；
Turntable base 62 is hollow structure, including two blocks of turntable base side plates, plate of the turntable base side plate in different height
Face is equipped with more than two second connecting holes；
Model turntable 16 is equipped with more than one third connecting hole；
The other end of first connecting plate 61 is screwed together with turntable base 62 by the first connecting hole and the second connecting hole；
Model turntable 16 is screwed together with turntable base 62 by third connecting hole and the second connecting hole.
Specifically, the first connecting plate 61 in the present embodiment can use the steel plate of trapezoidal shape, and steel plate is vertically-mounted to swash
Between wave plate 11 and turntable base 62, one end of steel plate can by the way of welding with the bottom surface of shock wave plate 11 and/or vertical
The side in direction is fixedly connected；The first connecting hole is arranged for cooperating turntable base in the other end close to turntable base 62 in steel plate
The second connecting hole on side plate.
In other optional embodiments, as shown in Figure 6, the first connecting plate 61 can also be long floor, long floor
The other end extend to 11 bottom surface of shock wave plate, and weld together with the bottom surface of shock wave plate 11, long floor can extend to shock wave
Near the shock wave axis 53 of plate 11, it is adjusted flexibly according to specific needs.By increasing welding of the long floor on 11 bottom surface of shock wave plate
Length is the requirement in order to guarantee the long floor stress intensity needed for wind tunnel test process and rigidity, to ensure that model turns
Stability of the disk 16 during moving synchronously；After long floor has been welded in 11 bottom surface of shock wave plate, moreover it is possible to be carried out to shock wave plate 11
Enhancing, to adapt to the influence of the test air-flow of larger Mach number.
Fig. 6 and Fig. 7 gives the alternative construction of a turntable base 62, can take a kind of T-type hollow structure, turntable branch
Two block side plates of the seat 62 with arc, the mounting hole for being provided with 4 column being parallel-laid into respectively on two blocks of side plates pair.These mounting holes
Both it can be used for fixed model turntable 16, and can be used for fixing long floor, this duration floor can choose two pieces, be separately connected
The side plate and shock wave plate 11 of 62 two sides of turntable base.Model turntable 16 is the dress for installing the test model for carrying out wind tunnel test
It sets, two rows of mounting holes can be equipped on model turntable 16, the mounting hole of different location on turntable base 62 can be selected to carry out accordingly
Installation passes through pin screw rod according to specific actual needs to obtain the test model that test angle is different or test height is different
63, hex nut 64 selects different mounting holes to be adjusted.For example, the peace of the different vertical height on selection turntable base 62
Hole link model turntable 16 is filled, the test angle of the test model on model turntable 16 can be adjusted；It selects on turntable base 62
In the same level but mounting hole link model turntable 16 that vertical height is different, can adjust on model turntable 16
The test height of test model.On the other hand, as shown in fig. 7, upper surface or side table of the long floor close to 62 part of turntable base
Face is equipped with the more than one mounting hole of different level position, the long floor of this part can be it is a kind of support in upper surface and
The frame-type structure of side surface aperture can by selecting the mounting hole of the different location on long floor to be used to install turntable base 62
To adjust the horizontal position of the test model on model turntable 16, the embodiment in Fig. 7 is by the peace of the upper surface of long floor
Dress hole is threadedly coupled with turntable base 62.Pass through installation site and model of the control turntable base 62 on long floor
Installation site of the turntable 16 on turntable base 62 can flexibly adjust horizontal position, vertical height and the examination of test model
Angle is tested, to adapt to a variety of different test demands.
Optionally, as shown in figure 8, shock wave shaft assembly 15 is two sets, the first circle is respectively equipped on left plate 3 and right side plate 4
Hole, the two sides of shock wave plate 11 are equipped with the second circular hole, a set of installation of shock wave shaft assembly 15 to the first circular hole and shock wave on left plate 3
Second circular hole in 11 left side of plate；On the right side of the another set of installation of shock wave shaft assembly 15 to the first circular hole and shock wave plate 11 on right side plate 4
The second circular hole.
Every set shock wave shaft assembly 15 includes shock wave axis 53, baffle 54, axle sleeve 55, shock wave axle bearing 56 and the first round nut
57；
It installs to the first circular hole one end of shock wave axis 53；Shock wave axle bearing 56 is located in the first circular hole, shock wave axle bearing
56 inner ring is set on shock wave axis 53；In the installation to shock wave axis 53 of axle sleeve 55, for adjusting shock wave axle bearing 56 in shock wave axis
Relative position on 53；Round nut is mounted on 55 outside of axle sleeve, is used for axial compression axle sleeve 55；
The other end of shock wave axis 53 is installed to second circular hole adjacent with the first circular hole, and baffle 54 is another to shock wave axis 53
One end is axially fastened.
Specifically, the shock wave shaft assembly 15 in left side is mounted on the first circular hole and shock wave plate 11 of left plate 3 close to a left side
In second circular hole of side plate 3, the shock wave shaft assembly 15 on right side is mounted on the first circular hole and shock wave plate 11 of right side plate 4 close to the right side
In second circular hole of side plate 4.By above-mentioned shock wave shaft assembly 15, it can ensure that shock wave plate 11 is steadily carried out around shock wave axis 53
Rotation.
Optionally, as shown in figure 9, driving mechanism 13 includes motor reducer module 41, lead screw module, chassis 38, strut
12, first axle component 14, second hinge component 65；
Motor reducer module 41 connects lead screw module, to drive the horizontal round-trip fortune of lead screw module progress on chassis 38
It is dynamic；
Lead screw module is equipped with first axle component 14 close to one end of motor reducer module 41, and the bottom end of strut 12 passes through
It is cut with scissors by the rear end of second hinge component 65 and shock wave plate 11 on the top of first axle component 14 and lead screw module-articulation, strut 12
It connects；
When lead screw module carries out horizontal back and forth movement on chassis 38, strut 12 is adjusted by first axle component 14
Bottom end relative position in the horizontal direction and horizontal sextant angle, and then swashed by the top of strut 12 and the control of second hinge component 65
Wave plate 11 surrounds the rotation of shock wave axis 53, to continuously adjust the Angle of Shock Waves of oblique shock wave.
Optionally, second is equipped with close to the rear end of turntable base 62 in the other end of shock wave plate 11, that is, shock wave plate 11
Bi-lug plate structure, for installing second hinge component 65.The hinge connected by bi-lug plate structure is more suitable in heavy load
Under the conditions of ensure hinged bonding strength.
For the more stable horizontal sextant angle for changing shock wave plate 11, and ensure shock wave plate 11 in entire test section inner core
Width direction on generated Angle of Shock Waves consistency, can use two sets of struts 12, first axle and second hinge, two sets
The bottom end of strut 12 is respectively articulated with by first axle to the two sides of lead screw module, and the top of strut 12 is hinged by second hinge
To the rear end of shock wave plate 11.
Specifically, motor reducer module 41 is the power source for pushing lead screw module to be moved, and 46 device of lead screw is
Linear motion is converted by the rotary motion that motor reducer module 41 exports, to drive strut 12 and first axle component 14 to connect
Back and forth movement is made in the bottom end connect in the horizontal direction, and the top of strut 12 is connect by second hinge component 65 with shock wave plate 11,
When the position of the bottom end of strut 12 and horizontal sextant angle change, the top of strut 12 pushes shock wave plate 11 around 53 turns of shock wave axis immediately
It is dynamic, to be adjusted to Angle of Shock Waves.
As an optional embodiment, as shown in Figure 9 and Figure 10, driving mechanism 13 further include shaft coupling 44, spacer 45,
Front end-plate 40, end plate 39；Lead screw module includes lead screw 46, lead screw bearing 47, linear guide 48, lead screw pressing plate 42 and lantern ring
43；
Motor reducer module 41 is fixedly attached to front end-plate 40；The output of the connection motor reducer module 41 of shaft coupling 44
Axis and lead screw 46；
Lead screw bearing 47 is two sets, is mounted respectively to the both ends of lead screw 46；And it is solid with front end-plate 40 and end plate 39 respectively
Fixed connection；
One end that the installation of spacer 45 is connect to lead screw 46 with shaft coupling 44, for adjusting screw bearing 47 in upper position；
Chassis 38 is trench structure, and the both ends of chassis 38 are connect with front end-plate 40 and end plate 39 respectively, 38 inner wall of chassis
Two sides are equipped with screw hole, for connecting linear guide 48；
The installation of front end-plate 40 is to chassis 38 close to one end of spacer 45, and the centre of front end-plate 40 is equipped with circular hole, for installing
Lead screw bearing 47；
End plate 39 installs the other end to chassis 38 far from spacer 45, and the centre of end plate 39 is equipped with circular hole, for pacifying
Fill lead screw bearing 47；
Lead screw 46 is installed into the circular hole of attachment beam 37, front end-plate 40 and end plate 39；
The middle part of attachment beam 37 is equipped with lead screw 46 and installs circular hole to install lead screw 46, and attachment beam 37 is close to the end of front end-plate 40
Face is connect with first axle component 14；
Lead screw pressing plate 42 is installed to end plate 39, for compressing lead screw bearing 47；
Lantern ring 43 is installed to 46 end of lead screw, the relative position of the lead screw bearing 47 on the end of adjusting screw 46；
Linear guide 48 is two sets, is mounted respectively to 38 inner wall two sides of chassis, the sliding block of linear guide 48 is installed to connection
On beam 37.
Optionally, chassis 38 carries out the carrier of horizontal back and forth movement as lead screw module, can select the welding structure of U-shaped
Part.
Optionally, attachment beam 37 is equipped with the first bi-lug plate structure close to the end face of front end-plate 40, for installing the first hinge
Chain component 14, the hinge connected by bi-lug plate structure are more suitable for ensuring hinged bonding strength under the conditions of heavy load.
Due to motor reducer module 41 to lead screw 46 export be movement be helical rotation, in order to guarantee and lead screw 46 connect
The stability of the round-trip horizontal movement of attachment beam 37 connect, the rotation that the rotation by lead screw 46 of limitation attachment beam 37 is influenced to generate become
Gesture, therefore linear guide 48 and sliding block 66 are introduced, to guarantee the stable operation in the horizontal direction of attachment beam 37.
Optionally, in order to improve the stability of driving mechanism 13 during the work time, before being additionally provided in driving mechanism 13
Connection leg 58 and rear connection leg 59, preceding connection leg 58 can be two pieces, be separately connected driving mechanism 13 and left plate 3 or right side plate
4, link position can be in shaft coupling 44 to the region of 40 this section of front end-plate；Connection leg 59 is also possible to two pieces afterwards, respectively
Driving mechanism 13 and left plate 3 or right side plate 4 are connected, link position can be the region near end plate 39.
Further, by taking second hinge component 65 as an example, as shown in figure 11, hinge module packet used in present embodiment
Include hinged shaft 49, hinged shaft bearing 50, the second round nut 51 and hinged shaft bearing cap 52；
In the installation to hinged shaft 49 of strut 12, the both ends of hinged shaft 49 are equipped with hinged shaft bearing 50；
Hinged shaft bearing 50 is connect by the second bi-lug plate structure with shock wave plate 11；
Second round nut 51 axially fastens on hinged shaft 49 for 50 inner ring of hinged shaft bearing；
Hinged shaft bearing cap 52 is axially fastened for 50 outer ring of hinged shaft bearing.
Optionally, as shown in figure 12, test chamber inner core further includes the second connecting plate 5 and hoisting mechanism 8；
Second connecting plate 5 is two sets or more, is located above top plate 2, every the second connecting plate of set 5 respectively with left plate 3 and the right side
Side plate 4 is fixedly connected；
Hoisting mechanism 8 is two sets or more, is mounted respectively to away from flange 1 on the second farthest connecting plate 5, and connect top
Plate 2, hoisting mechanism 8 include: attachment base 22, two-direction thrust bearing 30, bearing plate 23, screw rod 24, outer cylinder 25, promoted axis 26,
Dive key 60, pulling plate 27, pedestal 28 and pin shaft 29；
Attachment base 22 is for connecting hoisting mechanism 8 and the second connecting plate 5；
Two-direction thrust bearing 30 is installed in attachment base 22；
In the installation to attachment base 22 of bearing plate 23, for axially fastening for two-direction thrust bearing 30；
Screw rod 24 is mounted on two-direction thrust bearing 30, and 24 upper end of screw rod is fastened by nut；
It promotes axis 26 to be fixedly connected with screw rod 24, the outer surface for promoting axis 26 is equipped with dive key 60；
Outer cylinder 25 is fixedly connected with attachment base 22, and sliding keyway is equipped with inside outer cylinder 25；So that dive key 60 is sliding
Sliding in keyway；
One end of pedestal 28 is fixedly connected with top plate 2, and the other end of pedestal 28 is equipped with pin hole；
The one end for promoting the close top plate 2 of axis 26 is equipped with pin hole, and 27 both ends of pulling plate are equipped with pin hole；
Pin shaft 29 is each passed through pin hole, promotes axis 26, pulling plate 27 and pedestal 28 with connection.
Specifically, hoisting mechanism 8 connects top plate 2 and the second connecting plate 5, can be finely adjusted to the position of top plate 2.Fine tuning
Process may is that and rotate screw rod 24 using Wrench, screw rod 24 rotates, and the promotion axis 26 being threadedly coupled with screw rod 24 leading
It under the action of flat key 60, is moved up and down in 25 inner ring of outer cylinder, then passes through the transmitting of pin shaft 29 and pulling plate 27, to pull
Pedestal 28 drives top plate 2 to move up and down.2 front end of top plate is connect with flange 1, and rear end is connect with pedestal 28, and flange 1 is fixed
, the front end for the top plate 2 being connect with flange 1 be also it is fixed, and the rear end of top plate 2 without and left plate 3 and the fixation of right side plate 4
Together, therefore by hoisting mechanism 8 moving up and down for pedestal 28 is driven, the rear end of top plate 2 can be corresponding mobile certain
Distance, so that certain lifting angle is formed, to meet different types of test requirements document.
As an optional embodiment, as shown in figure 13, test chamber inner core is on left plate 3 and/or right side plate 4
It is respectively equipped at least a set of first observation window mechanism 10, the first observation window mechanism 10 includes: the first window frame 34, inner ring 35 and first
Pressure ring 36；
In the installation to left plate 3 or right side plate 4 of first window frame 34；
Inner ring 35 is installed into the first window frame 34；
First pressure ring 36 is set in the first window frame 34, and is fixedly connected with the first window frame 34, to compress inner ring 35.
It further, further include the second observation window mechanism 9；Second observation window mechanism 9 is set to top plate 2 or the first observation window
In the inner ring 35 of mechanism 10；Second observation window includes: the second window frame 31, the second pressure ring 32 and glass 33；
In the installation to the inner ring 35 of top plate 2 or the first observation window mechanism 10 of second window frame 31；
Second pressure ring 32 is fixedly connected with the second window frame 31, with pressed glass 33；
Glass 33 is installed into the second window frame 31.
Specifically, the first observation window mechanism 10 can be large observation window, and the left plate 3 in test section inner core can be set
Or in right side plate 4, the second observation window mechanism 9 can be small observation window, can be set on top plate 2 (as shown in figure 14), or
It is mounted on the inner ring 35 (as shown in figure 13) of large observation window.Large observation window and small observation window are that observation test is provided for testing crew
The device of the Test condition of model has been equipped with small observation window in each large observation window, and small observation window is in large observation window
Position be it is adjustable, the Test condition of in-core in test section is observed that by small observation window.In observation window, window frame is main
The bearing member wanted, the inner wall end on the second window frame 31 are disposed with horn structure, can select cyclic annular wedge angle, corresponding,
The end for the glass 33 installed in the second window frame 31 is equipped with chamfering, and the wedge angle of the chamfering of glass 33 and the second window frame 31 closely pastes
It closes, guarantees the smooth and bonding strength of the end face of small observation window.
As an optional embodiment, as shown in figure 15, test chamber inner core further includes two sets or more of wheel machine
Structure 7, the installation of wheel mechanism 7 to the bottom of left plate 3 or right side plate 4；Wheel mechanism 7 include: wheel mount 17, wheel bearing 21,
Axletree 19, wheel 20 and wheel bearing lid 18；
Wheel mount 17 is fixedly connected with left plate 3 or right side plate 4；
Wheel bearing 21 is installed to wheel mount 17；
Axletree 19 is installed to wheel bearing 21；
Wheel 20 is installed to axletree 19；
Wheel bearing lid 18 is fixedly connected with wheel mount 17, is used for axial restraint wheel bearing 21.
Wheel mechanism 7 is used to that test section inner core to be pushed into or be released in the special test section of wind-tunnel along preset track,
Preferred amount is 4 sets, is located at the end positions of 4 bottom of 3 bottom of left plate and right side plate of test section inner core.20 groups of wheel
Part is the main load component of test section inner core, test section inner core in place, fitted closely to flange 1 and special test section joint face
Afterwards, test section inner core can be fixed in specific test section by the attachment screw on clamp flange 1；After the completion of wind tunnel test,
The connection for releasing flange 1 and special test section, test section inner core is released, to carry out test model replacement, test section inner core dimension
The preparations such as shield.
Based on the same principle of the above embodiments, In yet another embodiment, a kind of wind tunnel device is also provided, using such as
The adjustable test chamber inner core of the Mach number of any one of the above.
Test section inner core in present embodiment can be applied to subsonic wind tunnel, transonic wind tunnel and supersonic wind tunnel,
Realization is during the test adjusted flexibly the gasflow mach number in special test section in the range of 0.4~4.5, has used this
The concrete operations process of the wind tunnel device of test section inner core in embodiment during the test is as follows:
Hoisting mechanism 8 is adjusted first, so that top plate 2 is in specific position: being twisted dynamic screw rod 24, screw rod using Wrench
24 rotations, what is be threadedly coupled with screw rod 24 promotes axis 26 due to the effect of dive key 60, promotes axis 26 in the inner ring of outer cylinder 25
In move up and down, then by the transmitting of pin shaft 29 and pulling plate 27, pass through the pedestal 28 of connection top plate 2 and pulling plate 27, drive top plate 2
Rear end move up and down in a certain range.The front end of top plate 2 is connect with flange 1, and flange 1 is fixed, and 2 rear end of top plate can phase
That answers moves a certain distance, thus lifting angle needed for forming certain test.
The installation site of following Adjustment Tests model, model turntable 16 are equipped with two rows of mounting holes, can choose and are turning
The hole of the specific position in the series installation hole being arranged in pairs in parallel on the side plate of disk support 62 passes through pin screw rod 63, hexagonal spiral shell
Mother 64 is attached, to obtain the test model that test angle is different or test height is different；Meanwhile first after connecting plate 61
The upper surface or survey surface at end are also equipped with row's mounting hole, the horizontal installation position of adjustable turntable base 62 or vertical peace
Holding position.According to current test demand, determine that the specific installation site of turntable base 62 and model turntable 16 is installed, so
Test model is mounted on model turntable 16 afterwards.
Followed by being mounted on test section inner core in the special test section of wind-tunnel, by test section inner core along preset rail
Road is pushed into special test section, after flange 1 and special test section joint face fit closely, is fastenedly connected screw, in test section
Core is secured in specific test section.
Finally, the initial position of shock wave plate 11 is in horizontality, passes through driving machine when wind tunnel test line is started to work
Structure 13 can make the horizontal sextant angle of strut 12 and horizontal position change, so that shock wave plate 11 be made to carry out around shock wave shaft assembly 15
The inner cavity that rotation, shock wave plate 11 and top plate 2, left plate 3 and right side plate 4 are formed generates certain Angle of Shock Waves, when test air-flow is blown
It is out-of-date, so that it may to generate the oblique shock wave of different Angle of Shock Waves.It is promoted with test progress, it, can be with by controlling driving mechanism 13
The consecutive variations of gasflow mach number after wave are realized in the variation of continuous control shock wave angle, are obtained during primary test with realizing
It obtains and continuously becomes Mach wind tunnel test data.During adjusting the angle of shock wave plate 11, the first connecting plate 61 turns model
Disc mechanism connects into an entirety, and the position of shock wave plate 11 adjusts the position adjustment of synchronous drive model rotating disk mechanism, therefore
It has used the wind tunnel device of the test section inner core in the present invention no longer to need additionally to increase attack angle mechanism, and has realized and be mounted on mould
The angle of test model on type turntable 16 is integrated with the angle that shock wave plate 11 adjusts, improves the essence of wind tunnel test data
Exactness.
Generally speaking, the wind tunnel device for having used test section inner core provided by the invention, drives shock wave by driving mechanism
Plate rotation realizes that Mach number during primary test is continuously adjustable, saves the workload of worker during replacement jet pipe,
It improves work efficiency, significantly reduces plant maintenance workload；It is same by the first connecting plate while shock wave plate rotation simultaneously
The position of successive step test model and angle save additional attack angle mechanism for wind-tunnel, realize the angle of test model with
The integration of shock wave plate angle degree adjustment, can obtain the wind tunnel test data of higher precision.
One or more embodiment through the invention, the invention has the advantages that advantage:
The present invention provides a kind of adjustable test chamber inner cores of Mach number, drive shock wave plate to carry out by driving mechanism
Rotation makes to form adjustable Angle of Shock Waves in the test section inner cavity of shock wave plate and top plate, left plate and right side plate formation, when test gas
When stream is blown over, the oblique shock wave of different Angle of Shock Waves can be generated by adjusting the turned position of shock wave plate.With test progress
It promotes, can be with the variation of continuous control shock wave angle by controlling driving mechanism, and then realize Mach number consecutive variations after wave；
On the other hand, at the position of dynamic adjustment shock wave plate, model rotating disk mechanism is connected by an entirety by the first connecting plate,
The position of shock wave plate adjusts the position adjustment of synchronous drive model rotating disk mechanism, no longer needs additionally to increase angle of attack machine at this time
Structure, and it is integrated with angle that shock wave plate adjusts to realize the angle of the test model being mounted on model turntable, improves
The accuracy of wind tunnel test data.
Further, it is parallel-laid into respectively on two blocks of side plates of turntable base to being provided with more than two mounting holes.
These mounting holes both can be used for fixed model turntable, can be used for fixing the first connecting plate.Model turntable is equipped with two rows
Mounting hole can select the mounting hole of different location on turntable base to be installed accordingly, to obtain test angle difference or examination
Test the different test model of height；On the other hand, different level position is equipped on the upper surface or side surface of the first connecting plate
More than two mounting holes, by selection the first connecting plate on different location mounting hole be used to turntable base is installed, can
To adjust the horizontal position of the test model on model turntable.Pass through installation position of the control turntable base on the first connecting plate
It sets and installation site of the model turntable on turntable base, can flexibly adjust the horizontal position, vertical high of test model
Degree and test angle, to adapt to a variety of different test demands.
The present invention also provides a kind of wind tunnel devices, apply in the adjustable test chamber of Mach number provided by the invention
Core saves the workload of worker during replacement jet pipe, improves work efficiency, significantly reduce plant maintenance workload；
Position and angle while shock wave plate rotation simultaneously by the first connecting plate synchronous adjustment test model, save volume for wind-tunnel
Outer attack angle mechanism, realizes the angle of test model and shock wave plate angle degree adjusts integrated, can obtain higher precision
Wind tunnel test data.
Although the preferred embodiment of the application has been described, but one of ordinary skilled in the art once knows substantially
Creative concept, then additional changes and modifications may be made to these embodiments.It is wrapped so the following claims are intended to be interpreted as
It includes preferred embodiment and falls into all change and modification of the application range.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (10)
1. a kind of continuously adjustable test chamber inner core of Mach number, which is characterized in that including top plate, left plate, right side plate, method
Orchid, model rotating disk mechanism, shock wave trigger structure and driving mechanism；
The shock wave trigger structure includes shock wave plate, and the shock wave plate is formed with the top plate, the left plate and the right side plate
Hollow cavity, the hollow cavity have front-end and back-end, and the front end of the hollow cavity is provided with the flange；
The shock wave plate close to the front end of flange by shock wave shaft assembly shaft be connected to the left plate and the right side plate it
Between, the shock wave plate connects the driving mechanism far from the rear end of the flange, and the driving mechanism drives the shock wave plate to enclose
It is rotated around the shock wave shaft assembly；
The model rotating disk mechanism includes turntable base, model turntable and the first connecting plate, one end of first connecting plate with
The rear end of the shock wave plate is fixedly connected, and the other end of first connecting plate is fixedly connected with the turntable base；Described turn
Disk support is for installing model turntable；
The test section of wind-tunnel is fixedly attached to by the flange in the test chamber inner core, and when test air-flow is blown over,
The driving mechanism drives the shock wave plate to be rotated around the shock wave shaft assembly, so that the shock wave plate is described hollow
The oblique shock wave of Angle of Shock Waves continuous variable is generated in cavity, and then controls the consecutive variations of Mach number after wave；The shock wave plate is turning
Turntable base described in synchronous drive during dynamic, to realize the synchronous adjustment to the model disk position.
2. test chamber inner core as described in claim 1, which is characterized in that the upper surface of first connecting plate and/or
Side surface is equipped with more than two first connecting holes；
The turntable base is hollow structure, including two blocks of turntable base side plates, and the turntable base side plate is in different height
Plate face is equipped with more than two second connecting holes；
The model turntable is equipped with more than one third connecting hole；
The other end and the turntable base of first connecting plate pass through first connecting hole and the second connecting hole spiral shell
It is connected together；The model turntable is screwed onto one by the third connecting hole and second connecting hole with the turntable base
It rises.
3. test chamber inner core as described in claim 1, which is characterized in that the shock wave shaft assembly is two sets, the left side
The first circular hole is respectively equipped on side plate and the right side plate, the two sides of the shock wave plate are equipped with the second circular hole, a set of shock wave
Shaft assembly installs second circular hole on the left of first circular hole and the shock wave plate to the left plate；Another set of institute
It states shock wave shaft assembly and second circular hole on the right side of first circular hole and the shock wave plate to the right side plate is installed；
Shock wave shaft assembly described in every set includes shock wave axis, baffle, axle sleeve, shock wave axle bearing and the first round nut；
It installs to first circular hole one end of the shock wave axis；The shock wave axle bearing is located in first circular hole, institute
The inner ring for stating shock wave axle bearing is set on the shock wave axis；The axle sleeve is installed to the shock wave axis, described for adjusting
Relative position of the shock wave axle bearing on the shock wave axis；The round nut is mounted on the outside of the axle sleeve, is used for axial compression
The axle sleeve；
The other end of the shock wave axis is installed to second circular hole adjacent with first circular hole, and the baffle is to described
The other end of shock wave axis is axially fastened.
4. test chamber inner core as described in claim 1, which is characterized in that the driving mechanism includes motor reducer mould
Block, lead screw module, chassis, strut, first axle component, second hinge component；
The motor reducer module connects the lead screw module, to drive lead screw module progress on the chassis horizontal
Back and forth movement；
The lead screw module is equipped with first axle component close to one end of the motor reducer module, and the bottom end of the strut is logical
Cross the first axle component and the lead screw module-articulation, the top of the strut by the second hinge component with it is described
The rear end of shock wave plate is hinged；
When the lead screw module carries out horizontal back and forth movement on the chassis, by described in first axle component adjusting
The bottom end of strut relative position in the horizontal direction and horizontal sextant angle, and then pass through the top of the strut and the second hinge
Component controls the rotation that the shock wave plate surrounds shock wave axis, to continuously adjust the Angle of Shock Waves of oblique shock wave.
5. test chamber inner core as claimed in claim 4, which is characterized in that the driving mechanism further include shaft coupling, every
Set, front end-plate, end plate；The lead screw module includes lead screw, lead screw bearing, linear guide, lead screw pressing plate and lantern ring；
The motor reducer module is fixedly attached to the front end-plate；The shaft coupling connects the motor reducer module
Output shaft and the lead screw；
The lead screw bearing is two sets, is mounted respectively to the both ends of the lead screw；And respectively with the front end-plate and the rear end
Plate is fixedly connected；
The spacer installs the one end connecting to the lead screw with the shaft coupling, for adjusting screw bearing in upper position；
The chassis is trench structure, and the both ends of the chassis are connect with the front end-plate and the end plate respectively, the bottom
Frame inner wall two sides are equipped with screw hole, for connecting the linear guide；
The front end-plate is installed to the chassis close to one end of the spacer, and the centre of the front end-plate is equipped with circular hole, is used for
The lead screw bearing is installed；
The end plate installs the other end to the chassis far from the spacer, and the centre of the end plate is equipped with circular hole, uses
In the installation lead screw bearing；
The lead screw is installed into the circular hole of the attachment beam, the front end-plate and the end plate；
The middle part of the attachment beam is equipped with lead screw installation circular hole to install lead screw, and the attachment beam is close to the end face of the front end-plate
It is connect with the first axle component；
The lead screw pressing plate is installed to the end plate, for compressing the lead screw bearing；
The lantern ring installs the opposite position of the lead screw bearing to the lead screw end, on the end for adjusting the lead screw
It sets；
The linear guide is two sets, is mounted respectively to chassis inner wall two sides, the sliding block of the linear guide is installed to institute
It states on attachment beam.
6. test chamber inner core as described in claim 1, which is characterized in that further include the second connecting plate and hoisting mechanism；
Second connecting plate is two sets or more, is located at top plate top, the second connecting plate described in every set respectively with the left side
Side plate is fixedly connected with the right side plate；
The hoisting mechanism is two sets or more, is mounted respectively to away from the flange on farthest second connecting plate, and
Connect the top plate, the hoisting mechanism include: attachment base, two-direction thrust bearing, bearing plate, screw rod, outer cylinder, promoted axis,
Dive key, pulling plate, pedestal and pin shaft；
The attachment base is for connecting the hoisting mechanism and second connecting plate；
The two-direction thrust bearing is installed in the attachment base；
The bearing plate is installed to the attachment base, for axially fastening for two-direction thrust bearing；
The screw rod is mounted on the two-direction thrust bearing, and the screw rod upper end is fastened by nut；
The promotion axis is fixedly connected with the screw rod, and the outer surface for promoting axis is equipped with the dive key；
The outer cylinder is fixedly connected with the attachment base, and the outer barrel is equipped with sliding keyway；So that the dive key exists
Sliding in the sliding keyway；
One end of the pedestal is fixedly connected with the top plate, and the other end of the pedestal is equipped with pin hole；
Described one end close to the top plate for promoting axis is equipped with pin hole, and the pulling plate both ends are equipped with pin hole；
The pin shaft is each passed through the pin hole, to connect the promotion axis, the pulling plate and the pedestal.
7. test chamber inner core as described in claim 1, which is characterized in that in the left plate and/or the right side plate
On be respectively equipped at least a set of first observation window mechanism, first observation window mechanism includes: the first window frame, inner ring and the first pressure
Ring；
First window frame is installed to the left plate or the right side plate；
The inner ring is installed into first window frame；
First pressure ring is set in the first window frame, and is fixedly connected with first window frame, to compress the inner ring.
8. test chamber inner core as claimed in claim 7, which is characterized in that further include the second observation window mechanism；Described
Two observation window mechanisms are set in the inner ring of the top plate or first observation window mechanism；Second observation window includes:
Second window frame, the second pressure ring and glass；
Second window frame is installed to the inner ring of the top plate or first observation window mechanism；
Second pressure ring is fixedly connected with second window frame, to compress the glass；
The glass is installed into second window frame.
9. test chamber inner core as described in claim 1, which is characterized in that further include two sets or more of wheel mechanism, institute
It states wheel mechanism and bottom to the left plate or the right side plate is installed；The wheel mechanism includes: wheel mount, axletree
It holds, axletree, wheel and wheel bearing lid；
The wheel mount is fixedly connected with the left plate or the right side plate；
The wheel bearing is installed to the wheel mount；
The axletree is installed to the wheel bearing；
The wheel is installed to the axletree；
The wheel bearing lid is fixedly connected with the wheel mount, for wheel bearing described in axial restraint.
10. a kind of wind tunnel device, which is characterized in that connect including the Mach number as described in any claim in claim 1~9
Continue adjustable test chamber inner core.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114235325A (en) * | 2021-11-19 | 2022-03-25 | 中国航天空气动力技术研究院 | Shock plate control system and method for wind tunnel continuous variable Mach number test |
| CN115326346A (en) * | 2022-10-18 | 2022-11-11 | 中国航空工业集团公司哈尔滨空气动力研究所 | Easily-adjusted convertible side wall structure for closed test section |
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| CN203310605U (en) * | 2013-06-25 | 2013-11-27 | 中国航天空气动力技术研究院 | Lifting mechanism |
| CN104963604A (en) * | 2015-01-19 | 2015-10-07 | 中广核工程有限公司 | Rotating shaft type aluminum explosion venting window |
| CN106840585A (en) * | 2016-12-29 | 2017-06-13 | 中国航天空气动力技术研究院 | A kind of supersonic wind tunnel test section adjusting means for possessing angle regulating function |
| CN106989891A (en) * | 2017-03-30 | 2017-07-28 | 南京航空航天大学 | Hypersonic inlet accelerates self-starting experimental method |
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| CN108680331A (en) * | 2018-05-17 | 2018-10-19 | 中国航空工业集团公司沈阳空气动力研究所 | A kind of adjustable half flexible jet pipe of branched side wall |
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| CN114235325A (en) * | 2021-11-19 | 2022-03-25 | 中国航天空气动力技术研究院 | Shock plate control system and method for wind tunnel continuous variable Mach number test |
| CN115326346A (en) * | 2022-10-18 | 2022-11-11 | 中国航空工业集团公司哈尔滨空气动力研究所 | Easily-adjusted convertible side wall structure for closed test section |
| CN115326346B (en) * | 2022-10-18 | 2023-01-24 | 中国航空工业集团公司哈尔滨空气动力研究所 | Easily-adjusted convertible side wall structure for closed test section |
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