CN205898347U - Wing section model rises force measuring device - Google Patents
Wing section model rises force measuring device Download PDFInfo
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- CN205898347U CN205898347U CN201620794347.2U CN201620794347U CN205898347U CN 205898347 U CN205898347 U CN 205898347U CN 201620794347 U CN201620794347 U CN 201620794347U CN 205898347 U CN205898347 U CN 205898347U
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- lever beam
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- force cell
- edge
- measurement device
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Abstract
The utility model discloses a wing section model rises force measuring device, include: the lever roof beam, the loading beam, its the upper end through the mode of blade bearer connect in the one end of lever roof beam, the counter weight, its the upper end through the mode of blade bearer connect in the other end of lever roof beam, a pedestal. The pillar, its lower extreme is fixed in the base, the upper end is connected in the middle part of lever roof beam through the mode of blade bearer, and with the middle part of lever roof beam is supported as the fulcrum the lever roof beam, force cell sensor, its set up in the fulcrum with between the counter weight, force cell sensor's one end is fixed in mode that base, the other end pass through the blade bearer connect in the lever roof beam, wherein, be in the vertical load effect that the loading beam transmitted down, the lever roof beam for the fulcrum swing, force cell sensor generates the dynamometry data. The utility model provides measurement accuracy, measuring sensitivity and the measuring range of shoulder wing section mould type lift have improved work efficiency.
Description
Technical field
This utility model is related to measurement apparatus, more particularly, to a kind of aerofoil profile model lift measurement device.
Background technology
The aerodynamic characteristic of aerofoil profile model has a significant impact to the performance of aircraft, the wing of aircraft, tailplane, vertical end
The design of the rotor of the wing, propeller blade and helicopter all depends on the aeroperformance of aerofoil profile model, therefore, aerofoil profile model
Aerodynamic characteristic is not only the basis of wing aerodynamic design, is also the basis of aircraft pneumatic design.Lift measurement in aerofoil profile model
In test, existing lift measurement device exist that certainty of measurement is high, measurement range is narrow in-convenience in use the problems such as.
Utility model content
For above-mentioned technical problem, this utility model has designed and developed a kind of high aerofoil profile model lift measurement of certainty of measurement
Device.
The technical scheme that this utility model provides is:
A kind of aerofoil profile model lift measurement device, comprising:
Lever beam；
Loading beam, its upper end is connected to one end of described lever beam by way of the edge of a knife supports；
Counterweight, its upper end is connected to the other end of described lever beam by way of the edge of a knife supports；
Base；
Pillar, described base is fixed in its lower end, and upper end is connected to the pars intermedia of lever beam by way of the edge of a knife supports
Position, and using the middle part of described lever beam as lever beam described in fulcrum support；
Force cell, it is arranged between described fulcrum and described counterweight, and one end of described force cell is fixed on
Described base, the other end is connected to described lever beam by way of the edge of a knife supports；
Wherein, under the effect of vertical load that described loading beam is transmitted, described lever beam with respect to described spot wobble,
Described force cell generates Aerodynamic data.
Preferably, in described aerofoil profile model lift measurement device, it is orthogonal two-way that described loading beam passes through the first series connection
Edge of a knife assembly is connected to one end of described lever beam, and the upper end of described counterweight is passed through the orthogonal way knife edge assembly of the second series connection and connected
In the other end of described lever beam, the other end of described force cell passes through a differential concatenation orthogonal way knife edge assembly and connects
In described lever beam.
Preferably, in described aerofoil profile model lift measurement device, one end of described lever beam offers first through hole,
The other end of described lever beam has the second through hole, and described lever beam is offering ladder between described fulcrum and described counterweight
Shape groove, and open up third through-hole in the centre of described dovetail groove；The bottom of the described first orthogonal way knife edge assembly of series connection is fixed
In one end of described lever beam, the upper end of described loading beam passes through described first through hole, and connects orthogonal two-way to the first series connection
The top edge of a knife part of edge of a knife assembly；The another of described lever beam is fixed in the bottom of the described second orthogonal way knife edge assembly of series connection
One end, the upper end of described counterweight passes through described second through hole, and connects upper to the described second orthogonal way knife edge assembly of series connection
Portion's edge of a knife part；The bottom edge of a knife part of the orthogonal way knife edge assembly of described differential concatenation is arranged at described dovetail groove pluggablely
Interior, the other end of described force cell passes through described third through-hole, and connects to described differential concatenation orthogonal way knife edge group
The top of part.
Preferably, in described aerofoil profile model lift measurement device, described lever beam is provided with three dovetail grooves, described
Base is provided with three location holes, and each location hole in the vertical direction corresponds to a dovetail groove；Described force cell
One end is selectively fastened to one of location hole by screw, and the orthogonal way knife edge assembly of described differential concatenation is selectively
It is inserted in one of dovetail groove, the other end of described force cell is connected to described lever beam, thus changing institute
State force cell to the distance of described fulcrum.
Preferably, in described aerofoil profile model lift measurement device, the other end of described force cell is threaded
To a fixing bolt, the upper end of described fixing bolt passes through third through-hole, and is fixedly connected on described reverse by the 3rd nut
Connect the top of orthogonal way knife edge assembly.
Preferably, in described aerofoil profile model lift measurement device, the middle part of described lever beam is provided with a knife
Mouthful, the upper end of described pillar is provided with tool rest, and described tool rest supports the described edge of a knife.
Preferably, in described aerofoil profile model lift measurement device, described counterweight includes balancing disk and is held on institute
State the counterweight in balancing disk.
Preferably, described aerofoil profile model lift measurement device, also includes:
Locking protection mechanism, it includes column, and the lower end of described column is fixed on described base, the upper end of described column
There is bayonet socket, wherein, described lever beam passes through described bayonet socket with swingable state, and the upper end of described column is provided with can
Described lever beam is fixed on the locking member in described bayonet socket.
Preferably, in described aerofoil profile model lift measurement device, described locking member includes a pair of clamping screw, institute
The upper and lower forming described bayonet socket is stretched out in the upper end stating column to side, and a pair of clamping screw extends through described bayonet socket
Upper and lower, and stretch in described bayonet socket, each clamping screw to the inside turn of described bayonet socket, thus by described lever beam
It is fixed in described bayonet socket.
Aerofoil profile model lift measurement device described in the utility model has the advantages that
(1) loading beam, counterweight, pillar and measurement sensor are all connected with lever beam by the way of edge of a knife support, make
Power will not produce additional force it is ensured that only in vertical direction power transmission, improve certainty of measurement in transmittance process；
(2) force cell, to there being multiple installation sites, can adjust force cell with respect to fulcrum as needed
Distance, widened measurement range.
(3) this utility model can carry out coarse adjustment and fine setting by adjusting counterweight to the initial reading of force cell, compares
The fixing common survey element of structure, using more flexibly, conveniently；
(4) without protection device, in use, installation locking protection fills this utility model common measuring cell
Put, the upper and lower bolt in rotational lock protection device, clamp lever beam, so that lever beam is fixed with respect to base, thus realize right
The locking of lift measurement device.
(5) each component such as base of the present utility model, tool rest, lever beam, loading beam is demountable structure, is easy to daily
Safeguard, there is a problem in use and be also easy to find root, convenient solution.
Brief description
Fig. 1 is the axonometric chart of aerofoil profile model lift measurement device described in the utility model；
Fig. 2 is the structural representation of aerofoil profile model lift measurement device described in the utility model；
Fig. 3 is the structural representation of base described in the utility model；
Fig. 4 is the structural representation of lever beam described in the utility model；
Fig. 5 is the structural representation of tool rest described in the utility model；
Fig. 6 (a) is the structural representation of counterweight described in the utility model, and Fig. 6 (b) is the a-a cross section view of Fig. 6 (a).
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
As shown in Fig. 1 to Fig. 6 (b), this utility model provides a kind of aerofoil profile model lift measurement device, comprising: lever beam
3；Loading beam 5, its upper end is connected to one end of described lever beam 3 by way of the edge of a knife supports；Counterweight 7, knife is passed through in its upper end
The mode that mouth supports is connected to the other end of described lever beam 3；Base 1；Pillar 12, described base 1, upper end are fixed in its lower end
It is connected to the middle part of lever beam by way of the edge of a knife supports, and propped up as fulcrum using the middle part of described lever beam
Support described lever beam；Force cell 4, it is arranged between described fulcrum and described counterweight, one end of described force cell 4
It is fixed on described base 1, the other end is connected to described lever beam 3 by way of the edge of a knife supports；Wherein, in described loading beam institute
Under the vertical load effect of transmission, described lever beam generates Aerodynamic data with respect to described spot wobble, described force cell.
Lift measurement device described in the utility model utilizes lever principle, by lever beam 3, loading beam 5, counterweight 7, pillar
12 and force cell 4 constitute lever system, using the middle part of lever beam as fulcrum, the tested masterpiece that loading beam is carried
For force side, as force side, being passed through the proportional force cell that is enlarged into of leverage by dynamometry can for force cell
The value of measurement.In this utility model, loading beam, counterweight, pillar and force cell all connect by way of the edge of a knife supports
In lever beam, so that the contact between lever bracket and above-mentioned component is linear contact lay, to avoid the transmittance process in power as far as possible
Middle generation additional force, thus improve certainty of measurement.Position of the fulcrum can be carried out according to the amplification of required Aerodynamic data
Select.
Refer to Fig. 1, Fig. 2 and Fig. 4, in a preferred embodiment, in described aerofoil profile model lift measurement device,
Described loading beam 5 is connected to one end of described lever beam 3 by the first orthogonal way knife edge assembly 33 of series connection, described counterweight 7
Upper end is connected to the other end of described lever beam 3 by the second orthogonal way knife edge assembly 35 of series connection, described force cell 4
The other end is connected to described lever beam 3 by a differential concatenation orthogonal way knife edge assembly 34.For loading beam, counterweight and dynamometry
These three components of sensor, power all could will be realized transmitting through two orthogonal edge of a knife parts, thus to greatest extent
Avoid produce additional force it is ensured that vertically transmit power, thus improving certainty of measurement.
Specifically, in the above-described embodiments, the set-up mode of loading beam, counterweight and force cell is: described lever
One end of beam 3 offers first through hole, and the other end of described lever beam 3 has the second through hole, and described lever beam 3 is between described
Offer dovetail groove 22 between fulcrum and described counterweight, and open up third through-hole in the centre of described dovetail groove；Described first string
One end of described lever beam is fixed in the bottom joining orthogonal way knife edge assembly 33, and the upper end of described loading beam passes through described first
Through hole, and connect to the top edge of a knife part 19 of the first orthogonal way knife edge assembly of series connection；The described second orthogonal two-way knife of series connection
The other end of described lever beam 3 is fixed in the bottom of mouth assembly 35, and the upper end of described counterweight 7 passes through described second through hole, and even
It is connected to the top edge of a knife part 20 of the described second orthogonal way knife edge assembly 35 of series connection；The orthogonal way knife edge group of described differential concatenation
The bottom edge of a knife part 21 of part 34 is arranged in described dovetail groove 22 pluggablely, and the other end of described force cell 4 passes through
Described third through-hole, and connect to the top of described differential concatenation orthogonal way knife edge assembly 34.In addition, the upper end of loading beam 5
Through the interior bone of the first orthogonal way knife edge assembly of series connection, and connect to the top of the first orthogonal way knife edge assembly of series connection
Edge of a knife part, then fixed by the first nut；Similarly, the upper end of counterweight 7 passes through the second orthogonal way knife edge assembly of series connection
Interior bone, and connect to the top edge of a knife part of the second orthogonal way knife edge assembly of series connection, then fixed by the second nut.
In a preferred embodiment, in described aerofoil profile model lift measurement device, described lever beam 3 is provided with three
Individual dovetail groove 22, described base is provided with three location holes 29, and each location hole 29 in the vertical direction is trapezoidal corresponding to one
Groove 22；One end of described force cell 4 is selectively fastened to one of location hole, described differential concatenation by screw 8
Orthogonal way knife edge assembly 34 is optionally inserted into one of dovetail groove 22, by the other end of described force cell
It is connected to described lever beam, thus changing described force cell to the distance of described fulcrum.
This embodiment offers three installation sites of force cell, that is, a location hole corresponds to an installation position
Put.In different installation sites, the distance that force cell reaches fulcrum is different, thus the measurement under realizing different condition.
This utility model can realize the lift measurement of the aerofoil profile model to different aerodynamic loadings.And, one end of force cell leads to
Cross screw and be fixed on location hole, that is, location hole has positioning action to force cell it is ensured that the installation site of force cell
Accurately, to ensure certainty of measurement.
Specifically, the company of way knife edge assembly 34 orthogonal with differential concatenation realized by force cell 4 by a fixing bolt 6
Connect, that is, the lower end of this fixing bolt 6 is threadedly connected to force cell 4, the upper end of this fixing bolt passes through third through-hole, and even
It is connected to the top of differential concatenation orthogonal way knife edge assembly 34, fixing by the 3rd nut 15.This utility model can also basis
Need to change force cell, to adapt to different measuring conditions.But also can by adjust the 3rd nut 15 screw journey
Degree, to change the initial output numerical value of force cell.
In a preferred embodiment, in described aerofoil profile model lift measurement device, the pars intermedia of described lever beam
Position is provided with an edge of a knife 32, and the upper end of described pillar 12 is provided with tool rest 2, and described tool rest 2 supports the described edge of a knife 32.The edge of a knife and knife
Being linear contact lay between seat, thus ensureing in the transmittance process of power, only transmitting the power of vertical direction.
Specifically, base offers installing hole, the screwed partial insertion in lower end of pillar 12 to installing in the hole, by
Pillar is fixed on base bolt 14.The upper end of pillar has jack 30, and the lower end of tool rest is inserted in jack, and passes through pin
Nail is fixedly connected.
Please check Fig. 2, Fig. 6 (a) and Fig. 6 (b), in a preferred embodiment, described aerofoil profile model lift measurement
In device, described counterweight 7 includes balancing disk 18 and is held on counterweight 17 in described balancing disk 18, and described balancing disk is connected with
One rod member 36, described rod member connects to the second orthogonal way knife edge assembly 35 of series connection.Can be by adjusting the counterweight in balancing disk
Carry out the initial reading to force cell and carry out coarse adjustment and fine setting.
Refer to Fig. 1, Fig. 2 and Fig. 3, in a preferred embodiment, described aerofoil profile model lift measurement device, also
Including: locking protection mechanism 10, it includes column 13, and the lower end of described column 13 is fixed on described base 1, described column
Upper end has bayonet socket 24, and wherein, described lever beam 3 passes through described bayonet socket, the upper end of described column with swingable state
It is provided with the locking member that described lever beam can be fixed in described bayonet socket 24.
When carrying out lift measurement test, locking member is unclamped, so that lever beam can be freely swung in bayonet socket；When not
When being tested, then locking member is locked, so that lever beam is maintained static with respect to bayonet socket, thus avoiding force cell is made
Become impact or avoid force cell to transship.
In a preferred embodiment, in described aerofoil profile model lift measurement device, described locking member includes one
To clamping screw 27,28, top 25 and the bottom 26 forming described bayonet socket 24 is stretched out in the upper end of described column 13 to side, a pair
Clamping screw 27,28 extends through top 25 and the bottom 26 of described bayonet socket, and stretches in described bayonet socket 24, each clamping screw
To the inside turn of described bayonet socket, thus described lever beam is fixed in described bayonet socket.Respectively set in the upper and lower of bayonet socket
Put a screw, each clamping screw passes through along corresponding screw turn, thus lever beam is clamped, made lever beam fixing not
Dynamic；Each clamping screw, to the outside turn of bayonet socket, unclamps lever beam, so that lever beam freely swings.
The lower end of loading beam is machined with a keyway for installation key, when loading beam lower end is connected with aerofoil profile model connecting plate
When, bond energy plays good guide effect, and loading beam will not be with the rotation of nut when carrying out pretension to loading beam
Rotate.
In order that those skilled in the art further appreciate that the technical solution of the utility model, below to this utility model institute
The measurement process of the lift measurement device stated illustrates.
First check the edge of a knife in lift measurement device, tool rest connection whether normal, then connect the survey of lift measurement device
Amount circuit.Estimate the range of force cell and the installation site of force cell by calculating, according to force cell
Range choose suitable force cell, force cell is installed to the corresponding location hole of installation site good in advance
Interior, fixed with mode connects for screw.The lower end of fixing bolt is connected with force cell by screw thread, the upper end insertion thick stick of fixing bolt
In the third through-hole of bar beam, and connect to differential concatenation orthogonal way knife edge assembly, and use nut screwing clamping.Unclamp the lock on base
Tight protection device, reads the output numerical value of force cell, enters one according to the quantity that output numerical value changes counterweight in balancing disk
Successive step output numerical value, output numerical value is adjusted in available range ability.If the repetition to measurement for the lift measurement device
Property has high demands, and can finely tune the nut of the upper end of fixing bolt, carry out the initial output to force cell after adjusting counterweight
Numerical value is accurately adjusted.Just changing load can be measured after the initial output numerical value of good force cell to be adjusted
?.
By it was verified that of the present utility model manufacture and design produce a desired effect with application, this utility model is big
Improve greatly certainty of measurement to aerofoil profile model lift, measurement sensitivity and measurement range, improve work efficiency.
Although embodiment of the present utility model is disclosed as above, it is not restricted in description and embodiment
Listed utilization, it can be applied to various suitable fields of the present utility model completely, for those skilled in the art,
It is easily achieved other modification, therefore under the general concept being limited without departing substantially from claim and equivalency range, this reality
It is not limited to specific details with new and shown here as the legend with description.
Claims (9)
1. a kind of aerofoil profile model lift measurement device is it is characterised in that include:
Lever beam；
Loading beam, its upper end is connected to one end of described lever beam by way of the edge of a knife supports；
Counterweight, its upper end is connected to the other end of described lever beam by way of the edge of a knife supports；
Base；
Pillar, described base is fixed in its lower end, and upper end is connected to the middle part of lever beam by way of the edge of a knife supports, and
And using the middle part of described lever beam as lever beam described in fulcrum support；
Force cell, it is arranged between described fulcrum and described counterweight, and one end of described force cell is fixed on described
Base, the other end is connected to described lever beam by way of the edge of a knife supports；
Wherein, under the vertical load effect that described loading beam is transmitted, described lever beam is with respect to described spot wobble, described
Force cell generates Aerodynamic data.
2. aerofoil profile model lift measurement device as claimed in claim 1 is it is characterised in that described loading beam passes through the first series connection
Orthogonal way knife edge assembly is connected to one end of described lever beam, and the upper end of described counterweight is by the second orthogonal way knife edge of series connection
Assembly is connected to the other end of described lever beam, and the other end of described force cell passes through the orthogonal way knife edge of a differential concatenation
Assembly is connected to described lever beam.
3. aerofoil profile model lift measurement device as claimed in claim 2 is it is characterised in that one end of described lever beam offers
First through hole, the other end of described lever beam has the second through hole, described lever beam between described fulcrum and described counterweight it
Between offer dovetail groove, and open up third through-hole in the centre of described dovetail groove；The described first orthogonal way knife edge assembly of series connection
Bottom be fixed on one end of described lever beam, the upper end of described loading beam passes through described first through hole, and connects to the first string
Join the top edge of a knife part of orthogonal way knife edge assembly；The bottom of the described second orthogonal way knife edge assembly of series connection is fixed on described
The other end of lever beam, the upper end of described counterweight passes through described second through hole, and connects to the described second orthogonal two-way knife of series connection
The top edge of a knife part of mouth assembly；The bottom edge of a knife part of the orthogonal way knife edge assembly of described differential concatenation is arranged at pluggablely
In described dovetail groove, the other end of described force cell passes through described third through-hole, and connects orthogonal to described differential concatenation
The top of way knife edge assembly.
4. aerofoil profile model lift measurement device as claimed in claim 3 is it is characterised in that described lever beam is provided with three ladders
Shape groove, described base is provided with three location holes, and each location hole in the vertical direction corresponds to a dovetail groove；Described dynamometry
One end of sensor is selectively fastened to one of location hole by screw, the orthogonal way knife edge assembly of described differential concatenation
It is optionally inserted into one of dovetail groove, the other end of described force cell is connected to described lever beam, from
And change described force cell to the distance of described fulcrum.
5. aerofoil profile model lift measurement device as claimed in claim 4 is it is characterised in that the other end of described force cell
It is threaded io a fixing bolt, the upper end of described fixing bolt passes through third through-hole, and is fixedly connected on by the 3rd nut
The top of the orthogonal way knife edge assembly of described differential concatenation.
6. aerofoil profile model lift measurement device as claimed in claim 1 is it is characterised in that the middle part of described lever beam sets
It is equipped with an edge of a knife, the upper end of described pillar is provided with tool rest, described tool rest supports the described edge of a knife.
7. aerofoil profile model lift measurement device as claimed in claim 1 it is characterised in that described counterweight include balancing disk and
It is held on the counterweight in described balancing disk.
8. aerofoil profile model lift measurement device as claimed in claim 1 is it is characterised in that also include:
Locking protection mechanism, it includes column, and the lower end of described column is fixed on described base, and the upper end of described column has
Bayonet socket, wherein, described lever beam passes through described bayonet socket with swingable state, and the upper end of described column is provided with can be by institute
State the locking member that lever beam is fixed in described bayonet socket.
9. aerofoil profile model lift measurement device as claimed in claim 8 is it is characterised in that described locking member includes a pair of lock
Tight bolt, the upper and lower forming described bayonet socket is stretched out in the upper end of described column to side, and a pair of clamping screw extends through
The upper and lower of described bayonet socket, and stretch in described bayonet socket, each clamping screw is to the inside turn of described bayonet socket, thus inciting somebody to action
Described lever beam is fixed in described bayonet socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620794347.2U CN205898347U (en) | 2016-07-26 | 2016-07-26 | Wing section model rises force measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620794347.2U CN205898347U (en) | 2016-07-26 | 2016-07-26 | Wing section model rises force measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN205898347U true CN205898347U (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620794347.2U Active CN205898347U (en) | 2016-07-26 | 2016-07-26 | Wing section model rises force measuring device |
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| CN (1) | CN205898347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295316A (en) * | 2021-07-06 | 2021-08-24 | 零重力南京飞机工业有限公司 | Working method of multi-rotor-wing unmanned aerial vehicle power system measurement test bed |
-
2016
- 2016-07-26 CN CN201620794347.2U patent/CN205898347U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295316A (en) * | 2021-07-06 | 2021-08-24 | 零重力南京飞机工业有限公司 | Working method of multi-rotor-wing unmanned aerial vehicle power system measurement test bed |
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