CN209261887U - A kind of adjustable ducted fan test fixture - Google Patents
A kind of adjustable ducted fan test fixture Download PDFInfo
- Publication number
- CN209261887U CN209261887U CN201821997098.2U CN201821997098U CN209261887U CN 209261887 U CN209261887 U CN 209261887U CN 201821997098 U CN201821997098 U CN 201821997098U CN 209261887 U CN209261887 U CN 209261887U
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- ducted fan
- test fixture
- hinge bar
- pedestal
- adjustable
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Abstract
The utility model discloses a kind of adjustable ducted fan test fixtures, including ducted fan, test fixture further includes pedestal, test fixture includes hinge bar, hinged joint, transmission group, force balance, ducted fan is mounted on one end of hinge bar, the center of hinge bar, one end of the other end connection transmission group of hinge bar is arranged in hinged joint, and hinged joint is mounted on the pedestal of test fixture side by mounting rod；The other end of transmission group acts on force balance, and the test panel of force balance is vertically arranged, and is mounted on the pedestal of the test fixture other side by mounting base.When the utility model acts on transmission group on force balance by hinged ball, the miniature deformation of generation ensure that the accuracy of measurement；It by the effect of gag lever post, can effectively prevent rotating in structure, guarantee accurate measurement；Since the hole of mounting hole and matching hole battle array is installed, make the adjustable characteristic for having different angle of ducted fan.
Description
Technical field
The utility model relates to ducted fan test fixture field, in particular to a kind of adjustable ducted fan tests work
Dress.
Background technique
Ducted fan is usually a kind of propulsion device of the periphery setting duct of free spiral rotation paddle, with free spiral rotation paddle phase
Than advantage mainly includes due to being limited at blade tip by duct, and impact noise reduces.Main application field includes small-sized vertical
Landing ducted fan aircraft, helicopter ducted tail rotor, model plane electric ducted fan and seaplane power etc..
Existing ducted fan test fixture usually only by fixed mounting means, can only test a direction every time
Thrust, the reduction degree under the operating condition of simulated flight device is inadequate.Simultaneously as ducted fan test job is in fixed installation
When mode is tested, it can only be tested by a fixed angle when doing error analysis, the accuracy of the test also reduced.
Utility model content
The purpose of this utility model is that: a kind of adjustable ducted fan test fixture is provided, solves existing duct
The inadequate problem of reduction degree of the fan test tooling under the operating condition of simulated flight device.
The technical solution adopted in the utility model is as follows:
A kind of adjustable ducted fan test fixture, including ducted fan, the ducted fan are mounted on test fixture
Top, the test fixture further include pedestal, and the test fixture includes hinge bar, hinged joint, transmission group, force balance,
The ducted fan is mounted on one end of hinge bar, and the center of hinge bar, the other end of hinge bar is arranged in the hinged joint
One end of transmission group is connected, the hinged joint is mounted on the pedestal of test fixture side by mounting rod；The transmission group
The other end act on force balance, the test panel of the force balance is vertically arranged, and is mounted on survey by mounting base
Trial work fills on the pedestal of the other side.The working principle of the utility model are as follows: ducted fan generates forward thrust, reaction force
It acts on hinge bar, the hinge bar makes transmission group to force balance generation and thrust by the turning effort of hinged joint
The reaction force of the pressure of the same direction, the pressure and thrust constitutes torque, to effectively measure the thrust of ducted fan.
Further, the hinged joint includes fanning strip, hinged ball, connecting plate, is provided with sector in the middle part of the fanning strip
Hole, the connecting plate are arranged in scallop hole, and the centre of sphere of the hinged ball is overlapped with the center of gravity of scallop hole, the center of gravity of connecting plate；
The fanning strip is made of arc plate, the first straight panel, the second straight panel, is provided with several mounting holes on the arc plate, and described first
Several matching holes are provided in straight panel, the second straight panel, hinge bar is fixed on fanning strip by mounting hole and matching hole；It is described
Hinged ball is fixed on the base by mounting rod.When acting on transmission group on force balance by hinged ball, generation it is small
Deformation, will not due to hinged joint addition and generate the twisting resistance from hinged joint, ensure that the accuracy of measurement.Together
When, since the hole of mounting hole and matching hole battle array is installed, make the adjustable characteristic for having different angle of ducted fan, so that test
Operating condition effectively expand, better simulating practical service environment.Fanning strip can save the occupied space of hinged joint, while can
Deflection angle is directly measured by goniometer, provides convenient and fast condition to record different operating conditions.
Further, the connecting plate is cross structure, further includes gag lever post, and the gag lever post is for limiting connecting plate
Rotation.Cross structure can make in fanning strip the control by installation space, convenient for gag lever post to hinged joint, gag lever post use but
It does not limit and is installed by way of being bundled with mounting rod.
Further, one end that the hinge bar is connect with ducted fan is provided with height adjuster.Pass through setting height
Adjuster can increase a dimension about height for adjusting ducted fan test, can more effectively simulate ducted fan
In the applying working condition of different types of aircraft.
Further, the mounting rod is connect by axle sleeve with pedestal, and the depth of the mounting base insertion pedestal can match
Close the position adaptive change of mounting rod and axle sleeve.Distance before and after mounting rod and the adjustable ducted fan of mounting base, thus
Increase the dimension of test.
Further, retaining mechanism is provided on the axle sleeve, the retaining mechanism is for locking mounting rod.Retaining mechanism
Due to preventing the movement of mounting rod when measurement.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1, a kind of adjustable ducted fan test fixture of the utility model, makes transmission group act on dynamometry day by hinged ball
When flat upper, the miniature deformation of generation, will not due to hinged joint addition and generate the twisting resistance from hinged joint, ensure that
The accuracy of measurement；
2, a kind of adjustable ducted fan test fixture of the utility model can be in structure by the effect of gag lever post
It effectively prevent rotating, guarantees accurate measurement；
3, a kind of adjustable ducted fan test fixture of the utility model, since the hole of mounting hole and matching hole battle array is installed,
Make the adjustable characteristic for having different angle of ducted fan.
Detailed description of the invention
The utility model will illustrate by example and with reference to the appended drawing, in which:
Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model；
Fig. 2 is a kind of structural schematic diagram of the hinged joint of embodiment of the utility model.
In figure, 1. ducted fans, 2. hinge bars, 3. hinged joints, 301. fanning strips, 302. mounting holes, 303. matching holes,
304. connecting plates, 305. hinged balls, 306. gag lever posts, 4. transmission groups, 5. force balances, 6. mounting bases, 7. pedestals, 8. installations
Bar, 9. axle sleeves.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
It elaborates below with reference to Fig. 1, Fig. 2 to the utility model.
Embodiment 1
A kind of adjustable ducted fan test fixture of the utility model, including ducted fan 1, the ducted fan 1 are installed
On the top of test fixture, the test fixture further includes pedestal 7, and the test fixture includes hinge bar 2, hinged joint 3, passes
Dynamic group 4, force balance 5, the ducted fan 1 are mounted on one end of hinge bar 2, and hinge bar 2 is arranged in the hinged joint 3
Center, one end of the other end connection transmission group 4 of hinge bar 2, the hinged joint 3 are mounted on test fixture by mounting rod 8
On the pedestal 7 of side；The other end of the transmission group 4 acts on force balance 5, and the test panel of the force balance 5 is perpendicular
Straight setting, and be mounted on the pedestal 7 of the test fixture other side by mounting base 6.The working principle of the utility model are as follows: duct
Fan 1 generates forward thrust, and for reaction force acts on hinge bar 2, the hinge bar 2 passes through the rotation of hinged joint 3
Effect makes transmission group 4 generate the pressure with the thrust same direction, the reaction force composition of the pressure and thrust to force balance 5
Torque, to effectively measure the thrust of ducted fan 1.
Embodiment 2
The present embodiment is made that restriction further below on the basis of embodiment 1: the hinged joint 3 includes fanning strip
301, hinged ball 305, connecting plate 304, scallop hole is provided in the middle part of the fanning strip 301, and the connecting plate 304 is arranged in scallop hole
Interior, the centre of sphere of the hinged ball 305 is overlapped with the center of gravity of the center of gravity of scallop hole, connecting plate 304；The fanning strip 301 by arc plate,
First straight panel, the second straight panel are constituted, and are provided with several mounting holes 302 on the arc plate, in first straight panel, the second straight panel
Several matching holes 303 are provided with, hinge bar 2 is fixed on fanning strip 301 by mounting hole 302 and matching hole 303；The hinge
It receives and 305 is fixed on pedestal 7 by mounting rod 8.When acting on transmission group 4 on force balance 5 by hinged ball 305, produce
Raw miniature deformation, will not due to hinged joint 3 addition and generate the twisting resistance from hinged joint 3, ensure that measurement
Accuracy.Simultaneously as the battle array installation of the hole of mounting hole 302 and matching hole 303, make ducted fan 1 have a different angle can
Control characteristic, so that the operating condition of test is effectively expanded, better simulating practical service environment.Fanning strip 301 can be saved hingedly
The occupied space of node 3, while deflection angle can be directly measured by goniometer, convenient and fast condition is provided to record different operating conditions.
The connecting plate 304 is cross structure, further includes gag lever post 306, and the gag lever post 306 is used to limit the rotation of connecting plate 304.
Cross structure can make in fanning strip 301 control by installation space, convenient for gag lever post 306 to hinged joint 3, gag lever post 306
Using but do not limit and installed by way of with 8 binding of mounting rod.One end that the hinge bar 2 is connect with ducted fan 1
It is provided with height adjuster.By the way that height adjuster is arranged, it can increase and adjust one that ducted fan 1 is tested about height
Dimension can more effectively simulate ducted fan 1 in the applying working condition of different types of aircraft.The mounting rod 8 passes through axis
Set 9 is connect with pedestal 7, and the depth that the mounting base 6 is embedded in pedestal 7 can be coupled bar 8 and the position adaptability of axle sleeve 9 becomes
Change.The distance of mounting rod 8 and adjustable 1 front and back of ducted fan of mounting base 6, to increase the dimension of test.On the axle sleeve 9
It is provided with retaining mechanism, the retaining mechanism is for locking mounting rod 8.Shifting of the retaining mechanism due to preventing mounting rod 8 when measurement
It is dynamic.
The working process of the utility model is as follows: connecting plate 304 is being tested by using cross-shaped structure in ducted fan 1
When, due to the spherical surface of hinged ball 305, so that fanning strip 301 is easy rotary translocation, and pass through the effect of gag lever post 306, Neng Gou
It effectively prevent rotating in structure, guarantees accurate measurement.Meanwhile also due to the hingedly effect of ball 305, makes transmission group 4 act on survey
When on power balance 5, the miniature deformation of generation, will not due to hinged joint 3 addition and generate the torsion from hinged joint 3
Power ensure that the accuracy of measurement.Since the hole of mounting hole 302 and matching hole 303 battle array is installed, make having not for ducted fan 1
With the adjustable characteristic of angle, it can allow measurement tooling on the basis of stably measured, multiple groups contrast test can be made, allow test
Result it is more targeted, can effectively simulate brought by different eccentric angles when ducted fan 1 is mounted on aircraft
Thrust variation.
More than, only preferred embodiments of the present invention, but protection scope of the utility model is not limited thereto,
Anyone skilled in the art can be expected in the technical scope disclosed by the utility model without creative work
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
It is determined by the scope of protection defined in the claims.
Claims (6)
1. a kind of adjustable ducted fan test fixture, including ducted fan (1), the ducted fan (1) is mounted on test work
The top of dress, the test fixture further include pedestal (7), it is characterised in that: the test fixture includes hinge bar (2), hinged
Node (3), transmission group (4), force balance (5), the ducted fan (1) are mounted on one end of hinge bar (2), the hinged segments
Point (3) setting is in the center of hinge bar (2), one end of other end connection transmission group (4) of hinge bar (2), the hinged joint
(3) it is mounted on the pedestal (7) of test fixture side by mounting rod (8)；The other end of the transmission group (4) acts on dynamometry
On balance (5), the test panel of the force balance (5) is vertically arranged, and to be mounted on test fixture another by mounting base (6)
On the pedestal (7) of side.
2. a kind of adjustable ducted fan test fixture according to claim 1, it is characterised in that: the hinged joint
(3) include fanning strip (301), hinged ball (305), connecting plate (304), be provided with scallop hole in the middle part of the fanning strip (301), it is described
Connecting plate (304) is arranged in scallop hole, the weight of the center of gravity of the centre of sphere of the hinged ball (305) and scallop hole, connecting plate (304)
The heart is overlapped；The fanning strip (301) is made of arc plate, the first straight panel, the second straight panel, is provided with several installations on the arc plate
Hole (302) is provided with several matching holes (303) in first straight panel, the second straight panel, and hinge bar (2) passes through mounting hole (302)
It is fixed on fanning strip (301) with matching hole (303)；The hinged ball (305) is fixed on pedestal (7) by mounting rod (8).
3. a kind of adjustable ducted fan test fixture according to claim 2, it is characterised in that: the connecting plate
(304) it is cross structure, further includes gag lever post (306), the gag lever post (306) is used to limit the rotation of connecting plate (304).
4. a kind of according to claim 1,2 and 3 any adjustable ducted fan test fixture, it is characterised in that: described
One end that hinge bar (2) is connect with ducted fan (1) is provided with height adjuster.
5. a kind of according to claim 1,2 and 3 any adjustable ducted fan test fixture, it is characterised in that: described
Mounting rod (8) is connect by axle sleeve (9) with pedestal (7), and the depth of mounting base (6) insertion pedestal (7) can be coupled
The position adaptive change of bar (8) and axle sleeve (9).
6. a kind of adjustable ducted fan test fixture according to claim 5, it is characterised in that: on the axle sleeve (9)
It is provided with retaining mechanism, the retaining mechanism is for locking mounting rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821997098.2U CN209261887U (en) | 2018-11-29 | 2018-11-29 | A kind of adjustable ducted fan test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821997098.2U CN209261887U (en) | 2018-11-29 | 2018-11-29 | A kind of adjustable ducted fan test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209261887U true CN209261887U (en) | 2019-08-16 |
Family
ID=67564857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821997098.2U Active CN209261887U (en) | 2018-11-29 | 2018-11-29 | A kind of adjustable ducted fan test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209261887U (en) |
-
2018
- 2018-11-29 CN CN201821997098.2U patent/CN209261887U/en active Active
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