CN207423487U - A kind of high-precision rolling moment independent measurement device - Google Patents
A kind of high-precision rolling moment independent measurement device Download PDFInfo
- Publication number
- CN207423487U CN207423487U CN201721469604.6U CN201721469604U CN207423487U CN 207423487 U CN207423487 U CN 207423487U CN 201721469604 U CN201721469604 U CN 201721469604U CN 207423487 U CN207423487 U CN 207423487U
- Authority
- CN
- China
- Prior art keywords
- model
- rolling moment
- balance
- rolling
- independent measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A kind of high-precision rolling moment independent measurement device, including model and balance bindiny mechanism, dampening mechanism, simple component rolling moment balance (6) and bearing group (9)；The model is fastenedly connected with balance bindiny mechanism and model leading portion (3), and model leading portion (3) and model back segment (10) are fastenedly connected as model entirety；The dampening mechanism is fitted close by bearing group (9) and model back segment (10), and dampening mechanism is fixedly connected with model strut (12), for other five component motions of limited model in addition to rolling；One end of the simple component rolling moment balance (6) is fastenedly connected with dampening mechanism, and the other end and model are connected with balance bindiny mechanism.
Description
Technical field
The utility model is related to a kind of high-precision rolling moment independent measurement devices, belong to fields of measurement.
Background technology
As arrow bullet weapon minute design degree is higher and higher, rolling moment under small rolling moment and high maneuver load
Accurate measurement proposes requirements at the higher level to wind-tunnel technique.Accurate measurement guided missile small rolling moment caused by asymmetric or
Rolling moment under high maneuver load, providing accurate aeroperformance for Missile Design has become the key index of guided missile development.
At present, there are mainly two types of methods for rolling moment wind tunnel test measurement technology：(1) using six component strain balances simultaneously
Flight force and moment is measured, obtains model rolling moment；(2) using supports such as air supporting, liquid, mechanical bearings, limitation is except rolling
Other direction degree of freedom in addition obtain the small rolling moment of model simple component；Both the above method has obtained sufficient development
And application.It is most common to surely belong to (1) kind measuring method, but using six component force balances while each component load of measurement model
There are the following problems：Under normal circumstances, due to model rolling moment compared with the small magnitude of other components more than, each component is set
It measures Cheng Yanchong to mismatch, to ensure balance overall stiffness, the sensitivity of rolling moment measuring unit can be then limited, thus can not be accurate
Really measure small rolling moment；In addition, under high maneuver load, other component load of model are larger, larger to the interference of rolling moment,
Increase the measurement error of rolling moment.At present, using supports such as air supporting, liquid and mechanical bearings, limit in addition to rolling
Other direction degree of freedom are also gradually employed with obtaining the measuring method of simple component rolling moment, but are largely all only applicable to small
The measurement of range rolling moment, and there are problems that complexity is high, experimentation cost is big and machining accuracy can not ensure.With air supporting
Exemplified by bearing, pressure air need to be imported into bearing bore to ensure that rotation axis suspends, it is therefore desirable to matched supply be provided and set
It is standby；Air-bearing is not thorough other pneumatic component absorbances in addition to rolling moment, and measurement still can be disturbed by other components,
So as to influence to measure precision；In addition, air-bearing be not suitable for wide range rolling moment measurement, after the angle of attack is bigger than normal, model its
His component load is larger, and gas circuit generates asymmetric flow, and air-bearing is influenced to be stuck and experiment is caused to lose by asymmetric flow
It loses.
Utility model content
The purpose of the utility model is to overcome the above-mentioned deficiency of the prior art, for small rolling moment and high maneuver load
The accurate measurement problem of lower rolling moment provides the high-precision that a kind of experimentation cost is low, measurement accuracy is higher than existing method and rolls
Torque independent measurement device, for the device convenient for changing model rolling angle measurement, measurement balance sensitivity is high and without erection stress,
The accurate measurement of rolling moment under different loads state can be met.
The above-mentioned purpose of the utility model is achieved by following technical solution：
A kind of high-precision rolling moment independent measurement device, including model and balance bindiny mechanism, dampening mechanism, simple component
The gentle bearing group in rolling moment day；
The model is fastenedly connected with balance bindiny mechanism and model leading portion, and model leading portion and model back segment are fastenedly connected work
It is whole for model；The dampening mechanism is fitted close by bearing group and model back segment, and dampening mechanism is fixed with model strut to be connected
It connects, for other five component motions of limited model in addition to rolling；One end of the simple component rolling moment balance and inhibition
Fastening connects, and the other end and model are connected with balance bindiny mechanism.
Above-mentioned high-precision rolling moment independent measurement device, the model include turnbuckle, pad with balance bindiny mechanism
Piece, spline tapered sleeve and crosshead shoe；One end of the crosshead shoe coordinates with the transition of spline tapered sleeve, the other end and simple component rolling
The transition of torque balance coordinates, and makes rolling direction gapless；The spline tapered sleeve and model leading portion cone match, pass through turnbuckle
It is fastenedly connected, gasket is between turnbuckle and model leading portion.
Above-mentioned high-precision rolling moment independent measurement device, the dampening mechanism include stretching screw, end cap and inner shaft；Institute
The both ends that bearing group is installed on inner shaft are stated, bearing group is fitted close with model back segment, circumferential position of the limited model in addition to rolling
It moves；End cap is installed vertically in the inner shaft, is tensed by stretching screw, limited model axial displacement；One end of the inner shaft
Recessed cone is machined with, which is fastenedly connected with simple component rolling moment balance, and one end of inner shaft is machined with protrusion cone, the end
It is fastenedly connected with model strut.
Above-mentioned high-precision rolling moment independent measurement device, the simple component rolling moment balance independent measurement model rolling
Torque, and other direction load are not subject to, simple component rolling moment balance is the column girder construction of overall processing, before measurement
End, elastic element and fixed rear end；The model includes crosshead shoe with balance bindiny mechanism, and measuring nose is groove structure,
Coordinate with crosshead shoe transition；The dampening mechanism includes inner shaft, and fixed rear end is bored after being machined with, with inner shaft immovable fitting.
Above-mentioned high-precision rolling moment independent measurement device, the bearing group are used to bear axial force and radial load, bearing
Type, matching method are adjusted according to model force request.
The advantageous effect of the utility model compared with prior art is：
(1) the utility model dampening mechanism part is fitted close by bearing group and model, limit model except rolling with
Other outer five component motions, model and the system rigidity that dampening mechanism forms are good, can bear large range of normal direction, it is lateral and
Axial load, it is suppressed that interference that these load measure rolling moment is surveyed, it can be achieved that rolling moment accurately measures on a large scale
Accuracy of measurement is higher；
(2) the utility model model and balance bindiny mechanism using spline tapered sleeve and crosshead shoe connection mode, it can be achieved that
Between model and balance in addition to rolling direction other directions displacement fine tuning, eliminate the erection stress of balance, solve due to
Balance erection stress and the measurement error problem brought；Meanwhile eliminate the transmission of other component aerodynamic force of dummy head；
(3) the simple component rolling moment measurement balance that the utility model uses is solely subjected to model rolling moment load, has
Higher sensitivity solves general measure balance since component range seriously mismatches, and rolling moment element sensitivity is limited,
Caused by the problem of can not accurately measuring rolling moment；
(4) model that the utility model uses and the spline tapered sleeve of balance bindiny mechanism are designed, it can be achieved that model arbitrarily rolls
The installation measurement of corner, experimentation cost is low, efficient.
Description of the drawings
Fig. 1 is the utility model high-precision rolling moment independent measurement schematic device；
Fig. 2 is model and balance bindiny mechanism position close-up schematic view；
Fig. 3 is spline tapered sleeve, crosshead shoe and simple component rolling moment measure balance decomposition diagram；
Fig. 4 is dampening mechanism position close-up schematic view.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments：
A kind of high-precision rolling moment independent measurement device, for accurately measuring the rolling moment of wind tunnel model, including mould
Type and balance bindiny mechanism, dampening mechanism, simple component rolling moment balance 6 and bearing group 9, as shown in Figure 1.The model and day
Flushconnection mechanism and model leading portion 3 are fastenedly connected, and model leading portion 3 and model back segment 10 are fastenedly connected as model entirety；It is described
Dampening mechanism is fitted close by bearing group 9 and model back segment 10, and dampening mechanism is fixedly connected with model strut 12, inhibits machine
Structure, bearing group 9, model back segment 10 and model strut 12 are provided commonly for other five component motions of limited model in addition to rolling；
One end of the simple component rolling moment balance 6 is fastenedly connected with dampening mechanism, and the other end and model connect with balance bindiny mechanism
It connects.
The model includes turnbuckle 1, gasket 2, spline tapered sleeve 4 and crosshead shoe 5 with balance bindiny mechanism；The suppression
Mechanism processed includes stretching screw 7, end cap 8 and inner shaft 11.
The model is fastenedly connected with balance bindiny mechanism and model leading portion 3 by spline tapered sleeve 4,5 one end of crosshead shoe
Coordinate with 4 transition of spline tapered sleeve, the front end transition of the other end and simple component rolling moment balance 6 coordinates, and makes rolling direction continuously
Gap, other directions can carry out displacement fine tuning, eliminate the erection stress of simple component rolling moment balance, meanwhile, eliminate model head
The transmission of other component aerodynamic force of portion；The spline tapered sleeve 4 and 3 cone match of model leading portion, are fastened by turnbuckle 1 and connected
It connects, for gasket 2 between turnbuckle 1 and model leading portion 3, said structure form is conveniently adjusted model measurement roll angle, refers to
Fig. 2 and Fig. 3.
The inner shaft 11 of the dampening mechanism is fitted close by bearing group 9 and model back segment 10, limited model except rolling with
Outer is circumferentially displaced；The bearing group 9 is installed on the both ends of inner shaft 11, installs end cap 8 vertically in the inner shaft 11, passes through drawing
Tight screw 7 tenses, limited model axial displacement；One end of the inner shaft 11 is machined with recessed cone, the end and simple component rolling
Torque balance 6 is fastenedly connected, and one end of inner shaft 11 is machined with protrusion cone, which is fastenedly connected with model strut 12, such as Fig. 4 institutes
Show that there is higher rigidity which limit other five component motions of model in addition to rolling, and with the system of model composition.Axis
9 connection dampening mechanism of group and model back segment 10 are held, axial force and radial load can be born, bearing type, matching method are according to mould
Type force request and adjust.
The 6 independent measurement model rolling moment of simple component rolling moment balance, and other direction load are not subject to, rear end
It is fastenedly connected with inner shaft 11, simple component rolling moment balance 6 is the column girder construction of overall processing, including measuring nose, elasticity member
Part and fixed rear end；Measuring nose is groove structure, and measuring nose passes through crosshead shoe 5 and model and the flower of balance bindiny mechanism
Key tapered sleeve 4 connects, and measuring nose coordinates with 5 transition of crosshead shoe, sees Fig. 3, independent measurement model rolling moment, fixed rear end
It is bored after being machined with, with 11 immovable fitting of inner shaft.
Operation principle is as follows：
A kind of high-precision rolling moment independent measurement device, suppression system is rigidly good, can bear large range of normal direction, side
To with axial load, it can be achieved that the accurate measurement of a wide range of rolling moment.The dampening mechanism and the measurement of simple component rolling moment
For balance after installation is complete, installation crosshead shoe 5 and spline tapered sleeve 4 make its transition be connected, and finally logical with model leading portion 3
Cone match connection is crossed, the displacement in other directions is finely tuned in addition to rolling between implementation model and balance, eliminates the assembling of balance
Stress.Model leading portion 3 and model back segment 10 are fastenedly connected, and adjust model attitude to required measurement roll angle, and eventually by spiral shell
Bolt 1 tenses, it can be achieved that the measurement of arbitrary model roll attitude.
The device is placed in Flow Field in Wind Tunnel homogeneity range by model strut 12, and sets blowing state, after incoming is stablized, model
Stand under load.Bearing group 9 undertakes the axial and circumferential load of model, and is transferred to inner shaft 11, is finally carried by model strut 12, single point
Amount rolling moment balance 6 only undertakes the rolling moment load of model, has higher sensitivity to rolling moment measurement, and avoids
Interference effects of other load to rolling moment, improve accuracy of measurement.Device use high-performance bearing, coefficient of friction compared with
Small, generally 0.001 or so, in addition, used bearing diameter is smaller, other load act on generated friction roll after bearing
Torque is smaller, thus smaller using present apparatus measurement model rolling moment error.
Model attitude roll angle is adjusted, repeats the above steps, can efficiently obtain the high-precision rolling of different conditions drag
Torque.
It in summary being capable of low cost, the efficient small rolling moment for realizing wind tunnel model and big machine using the utility model
The accurate measurement of rolling moment under dynamic loading.
The above, is only the optimal specific embodiment of utility model, but the scope of protection of the utility model not office
It is limited to this, in the technical scope that any one skilled in the art discloses in the utility model, can readily occurs in
Change or replacement should be covered within the scope of the utility model.
The content not being described in detail in the utility model specification belongs to the known technology of professional and technical personnel in the field.
Claims (5)
1. a kind of high-precision rolling moment independent measurement device, it is characterised in that：Including model and balance bindiny mechanism, inhibit machine
Structure, simple component rolling moment balance (6) and bearing group (9)；
The model is fastenedly connected with balance bindiny mechanism and model leading portion (3), model leading portion (3) and model back segment (10) fastening
It is connected to model entirety；The dampening mechanism is fitted close by bearing group (9) and model back segment (10), dampening mechanism and mould
Type strut (12) is fixedly connected, for other five component motions of limited model in addition to rolling；The simple component rolling moment
One end of balance (6) is fastenedly connected with dampening mechanism, and the other end and model are connected with balance bindiny mechanism.
2. a kind of high-precision rolling moment independent measurement device according to claim 1, it is characterised in that：The model with
Balance bindiny mechanism includes turnbuckle (1), gasket (2), spline tapered sleeve (4) and crosshead shoe (5)；The crosshead shoe (5)
One end and spline tapered sleeve (4) transition coordinate, the other end coordinates with simple component rolling moment balance (6) transition, makes rolling direction
Gapless；The spline tapered sleeve (4) and model leading portion (3) cone match, are fastenedly connected, gasket (2) position by turnbuckle (1)
Between turnbuckle (1) and model leading portion (3).
3. a kind of high-precision rolling moment independent measurement device according to claim 1, it is characterised in that：The inhibition machine
Structure includes stretching screw (7), end cap (8) and inner shaft (11)；The bearing group (9) is installed on the both ends of inner shaft (11), bearing group
(9) it is fitted close with model back segment (10), limited model is circumferentially displaced in addition to rolling；Pacify vertically on the inner shaft (11)
End cap (8) is filled, is tensed by stretching screw (7), limited model axial displacement；One end of the inner shaft (11) is machined with recessed cone
Body, the end are fastenedly connected with simple component rolling moment balance (6), and one end of inner shaft (11) is machined with protrusion cone, the end and mould
Type strut (12) is fastenedly connected.
4. a kind of high-precision rolling moment independent measurement device according to claim 1, it is characterised in that：The simple component
Rolling moment balance (6) independent measurement model rolling moment, and other direction load are not subject to, simple component rolling moment balance
(6) it is the column girder construction of overall processing, including measuring nose, elastic element and fixed rear end；The model and day flushconnection machine
Structure includes crosshead shoe (5), and measuring nose is groove structure, coordinates with crosshead shoe (5) transition；The dampening mechanism includes interior
Axis (11), fixed rear end is bored after being machined with, with inner shaft (11) immovable fitting.
5. a kind of high-precision rolling moment independent measurement device according to claim 1, it is characterised in that：The bearing group
(9) for bearing axial force and radial load, bearing type, matching method are adjusted according to model force request.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721469604.6U CN207423487U (en) | 2017-11-07 | 2017-11-07 | A kind of high-precision rolling moment independent measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721469604.6U CN207423487U (en) | 2017-11-07 | 2017-11-07 | A kind of high-precision rolling moment independent measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207423487U true CN207423487U (en) | 2018-05-29 |
Family
ID=62307773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721469604.6U Active CN207423487U (en) | 2017-11-07 | 2017-11-07 | A kind of high-precision rolling moment independent measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207423487U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709714A (en) * | 2018-08-08 | 2018-10-26 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of small lateral force balance of big rolling moment |
| CN110207944A (en) * | 2019-06-26 | 2019-09-06 | 中国航天空气动力技术研究院 | A kind of wind tunnel experiment high-precision resistance measurement method and device |
| CN112304562A (en) * | 2020-10-30 | 2021-02-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Force and heat measuring integrated model device for hypersonic wind tunnel |
-
2017
- 2017-11-07 CN CN201721469604.6U patent/CN207423487U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709714A (en) * | 2018-08-08 | 2018-10-26 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of small lateral force balance of big rolling moment |
| CN108709714B (en) * | 2018-08-08 | 2023-08-22 | 中国空气动力研究与发展中心高速空气动力研究所 | Balance with large rolling moment and small lateral force |
| CN110207944A (en) * | 2019-06-26 | 2019-09-06 | 中国航天空气动力技术研究院 | A kind of wind tunnel experiment high-precision resistance measurement method and device |
| CN110207944B (en) * | 2019-06-26 | 2021-04-13 | 中国航天空气动力技术研究院 | High-precision resistance measuring method and device for wind tunnel experiment |
| CN112304562A (en) * | 2020-10-30 | 2021-02-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Force and heat measuring integrated model device for hypersonic wind tunnel |
| CN112304562B (en) * | 2020-10-30 | 2022-02-25 | 中国空气动力研究与发展中心超高速空气动力研究所 | Force and heat measuring integrated model device for hypersonic wind tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101183039B (en) | Balance system with inhibition structure | |
| CN207423487U (en) | A kind of high-precision rolling moment independent measurement device | |
| CN102889973B (en) | High-precision device for measuring rolling moment based on mechanical bearing support | |
| CN107238457B (en) | A kind of low thrust measuring device | |
| CN110207944B (en) | High-precision resistance measuring method and device for wind tunnel experiment | |
| CN105806586B (en) | A kind of small asymmetric reentry body aerodynamics force measurement device of air-bearing support | |
| CN205748868U (en) | The little asymmetric reentry body aerodynamics force measurement device that a kind of air-bearing supports | |
| CN108254155B (en) | Rail-controlled lateral jet flow force measurement test structure for large slenderness ratio | |
| CN105823615A (en) | Mechanical-bearing supported small asymmetrical reentry body aerodynamic force measuring apparatus | |
| CN201152812Y (en) | Radial directional hydrodynamic-hydrostatic gas bearing experiment bench | |
| CN108106812A (en) | A kind of dynamometric system for thrust calibration | |
| CN103969021A (en) | Aircraft propeller thrust and torque measuring balance | |
| CN102322995B (en) | Face-to-face pairing miniature ball bearing friction torque test method under application axial direction load | |
| CN109580086A (en) | A kind of Combined static-pressure air-bearing supporting device | |
| CN207317718U (en) | A kind of screw shaft of ship holds Shaft alignment state and operating status measuring device | |
| CN109060291A (en) | For short blunt shape aircraft pitch orientation low-frequency vibration dynamic derivative angle measurement and experimental rig | |
| CN106969902A (en) | The COMPONENT BALANCE of ultralow temperature six calibrates loading head and loading method | |
| CN112649204B (en) | Thrust testing device and method for small multi-nozzle direct force engine | |
| CN207600339U (en) | A kind of novel driven wheel of differential pitch circle bounce gauge | |
| CN205785749U (en) | The little asymmetric reentry body aerodynamics force measurement device that a kind of mechanical bearing supports | |
| CN208937283U (en) | A kind of device measuring wind-tunnel rotating model aerodynamic force | |
| CN102607750B (en) | Test-bed for friction torque of rolling bearing | |
| CN104458257A (en) | Bearing reaction simulating device for rotating shaft | |
| CN109352328B (en) | Digital tracked vehicle transmission device center line correction instrument and correction method | |
| CN111189609A (en) | Single-component rod-shaped ring-shaped rolling torque balance for hypersonic wind tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |