CN205642799U - Visual research device of flexible body motion in even incoming flow - Google Patents
Visual research device of flexible body motion in even incoming flow Download PDFInfo
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- CN205642799U CN205642799U CN201620449196.7U CN201620449196U CN205642799U CN 205642799 U CN205642799 U CN 205642799U CN 201620449196 U CN201620449196 U CN 201620449196U CN 205642799 U CN205642799 U CN 205642799U
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- pipe
- flexible body
- experiment tube
- experiment
- anemostat
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Abstract
The utility model discloses a visual research device of flexible body motion in even incoming flow, including: the fan, the sectional area of this fan air outlet is S1, stable pipe with the fan air outlet is linked together should be S2, then S2 >= 5S1 by stable sectional area of managing, with the transition pipe that stable pipe is linked together, should the transition manage to the straight tube, with the experiment pipe that the transition pipe is linked together, this experiment pipe adopts transparent material to make, with the anemostat that the experiment pipe is linked together, this anemostat is the straight tube, and the diameter of anemostat is D3, and the length of anemostat is L3, then L3 >= 6D3, install in the intraductal bracket of experiment, the import of experiment pipe is assembled with the consistent fan of transition pipe outlet diameter, stable pipe, transition pipe, experiment pipe, anemostat according to the order of sequence in proper order. Movement track, speed and the form of flexible body can all arrive by direct observation, perhaps shoot through highspeed camera to realize the three -dimensional visual research of flexible body, the not restriction of speed of incoming flow moreover can be used to the flexible body experiment of reynolds number when great.
Description
Technical field
This utility model relates to a kind of flexible body research device, flexible body in especially a kind of uniform incoming flow
Motion visual research device.
Background technology
Air conveying it is common in all kinds of novel spinning technique, such as Revolving cup spinning, air-jet eddy-current spinning etc., and
This type of spinning process uses the flexible bodies such as fiber as raw material, and its yarn quality and resultant yarn efficiency depend on
Coupling between flexible body motion and flexible body and air-flow in conveyor chamber.Therefore, right
Flexible body motion in uniform incoming flow is studied, and has very important significance.
Wherein, flexible body refers mainly to fiber, and novel open-end-spinning (such as Revolving cup spinning) mainly relies on
Air-flow realizes the conveying of fiber, during fibre spinning becomes yarn, has a carding process
Single fibre will be separated into by fiber webs (namely coma) by realizing combing under combing roller effect
Dimension, the single fiber after point comb can be inhaled into a cavity being cotton-conveying pipe and (reduce often
Type), the motion in this cavity of the emphasis of the experimentation i.e. fiber, and corresponding parameter, Tathagata stream
Impact (experience and the research table on fiber movement such as the tapered degree of speed, cavity and fiber initial configuration
Bright last fiber goes out the form of this passage can affect final yarn quality, and straight configuration is conducive to improving
The quality of follow-up resultant yarn).
Research currently for problems focuses mostly on numerical simulation study, and less employing is tested
The mode of research is carried out, and existing experimentation also can only study flexible filament in two-dimensional flow soap-film
Motion.As it is shown in figure 1, the test research device of existing two-dimensional flow soap-film is dress liquid soap container
1a, installs the nozzle 2a of a band water check valve, below this nozzle 2a below this dress liquid soap container 1a
Disposing the two support line 3a be arrangeding in parallel, two support line 3a is that freely falling body form is arranged, by outward
Two support line 3a are pulled open by power, and make to be formed between two support line 3a test block 4a.When nozzle 2a beats
After opening, liquid soap will be dirty along supporting line 3a, and support between line 3a shape at the 4a of test block two
Become soap film, under the state that nozzle 2a is always on, soap film is formed the most defluent
Liquid soap, thus simulates air-flow (uniform incoming flow).Flexible filament 5a is positioned on bracket, then
By bracket near soap film (bracket does not contacts with soap film) so that flexible filament 5a connects with soap film
Touch, and along the liquid soap motion of soap film Surface runoff, then by observing this flexible filament 5a
State reach research purpose.
But it is true that the motor process that flexible body is in conveyor chamber is complex, and soft in the soap-film that flows
The motion of gonosome cannot realize the results of measuring of three-dimensional, therefore there is bigger difference with actual motion, and
The most real data message can not be provided for experimentation.It addition, speed of incoming flow is non-adjustable or adjustable district
Between the least, the research of flexible filament motion under the conditions of low reynolds number can only be realized, because under high reynolds number
Soap film is easily broken.
Utility model content
In order to overcome the deficiencies in the prior art, this utility model provides a kind of simple in construction, installation side
Just, flexible body motion visual research dress in the uniform incoming flow that flexible body three-dimensional visualization is measured can be realized
Put.
This utility model solves its technical problem and be the technical scheme is that in a kind of uniform incoming flow soft
Gonosome motion visual research device, includes:
Blower fan, the sectional area of this fan outlet is S1；
The stable pipe being connected with fan outlet, the sectional area of this stable pipe is S2, then S2≥5S1；
The transition conduit being connected with stable pipe, this transition conduit is straight tube；
The experiment tube being connected with transition conduit, this experiment tube uses transparent material to make；
The anemostat being connected with experiment tube, this anemostat is straight tube, a diameter of D of anemostat3,
The a length of L of anemostat3, then L3≥6D3；
The bracket being installed in experiment tube；
The mouth of pipe engaged with experiment tube at described transition conduit is transition conduit outlet, at experiment tube and transition
The mouth of pipe that pipe engages is experiment tube import, and this experiment tube import is consistent with transition conduit outlet diameter
Blower fan, stable pipe, transition conduit, experiment tube, anemostat assemble the most successively.
The beneficial effects of the utility model are: open blower fan, and the wind of blower fan blowout is referred to as flowing, and this comes
Stream is to have the wind of certain pressure, now flows and unstable, flows after entrance stablizes pipe, by voltage stabilizing
Pipe realizes stablizing of air-flow.Flowing entrance transition conduit after Wen Ding, this transition conduit is straight tube, by mistake
Cross pipe and realize smoothly transitting of air-flow between stable pipe and experiment tube, it is to avoid because the sudden change of sectional dimension
Cause air-flow turmoil, affect experiment effect.Anemostat then avoids directly connecing of experiment tube and external environment
Touch, reduce the external air flow interference to experiment tube flow field.Flexible body is set up on bracket, when from
Flowing of stabilivolt enters the flexible body blowing afloat on bracket after experiment tube, the now motion rail of flexible body
Mark, speed and form can observe directly, or are filmed by high-speed camera, thus
Realize the research of flexible body three-dimensional visualization, and the speed flowed does not limits, and can be used for Reynolds number
Flexible body experiment time bigger.
Owing to the power of blower fan is often constant, at fan outlet, therefore it is additionally provided with regulation other
Road, is provided with bypass valve at this regulation bypass.By regulating the unlatching size of bypass valve, can regulate
The air quantity of fan outlet, reaches the flow-control flowed.
For the ease of statistics and manipulation, then blower fan and stablize and be provided with effusion meter between pipe.
Wherein, the upper screw along experiment tube axial distribution and lower screw, upper screw are offered at experiment tube
Being positioned at experiment tube top, lower screw is positioned at bottom experiment tube, and described bracket includes bracket and subiculum
Frame, bracket includes the upper screw rod matched with upper screw, and on this, the bottom of screw rod is fixed with supporting piece；
Bottom bracket includes the lower screw rod matched with lower screw, and the top of this lower screw rod is fixed with lower supporting piece.Logical
Overregulate screw rod, it is possible to achieve upper supporting piece lifting of position in experiment tube；In like manner, by regulation
Lower screw rod, it is achieved lower supporting piece is the lifting of position in experiment tube.One end of flexible body is placed in supporting piece
Place, the other end is placed at lower supporting piece, thus realizes the erection of flexible body.By bracket and subiculum
The cooperation of frame, it is possible to achieve the adjustment of flexible body initial configuration, flexible body level can set up, also may be used
To set up horizontal by certain angle.
According to the difference of flexible body length, then need to regulate the distance between bracket and bottom bracket.Therefore
The quantity of lower screw at least three, each lower screw is along the axial arrangement of experiment tube；At lower screw also
It is provided with closure, blocks fewer than lower screw quantity one of quantity.Multiple lower screws have one and bottom bracket
Matching, other needs are sealed by closure, it is to avoid the leakage of air-flow, impact experiment effect occur
Really.
Being connected by upper connecting rod between upper screw rod and upper supporting piece, the diameter of this upper connecting rod is less than 5mm；
Being connected by lower connecting rod between described lower screw rod and lower supporting piece, the diameter of this lower connecting rod is less than 5mm.
Herein, upper connecting rod and lower connecting rod are the thinnest more good, thus reduce it to flow field around flexible body
Interference.
Descend screw rod exchange of position between screw under difference for convenience, therefore descend between screw rod and lower supporting piece
For the cooperation that removably connects.
Laying for the ease of flexible body, and reduce by flowing that supporting piece is disturbed, then go up supporting piece and subiculum
Part is U-shape structure, and this U-shape structure has and runs through supporting piece or the passage of lower supporting piece, upper supporting piece
All set up with the opening direction of lower supporting piece, and channel direction is the most consistent with experiment tube.
Wherein, all connected by flange arrangement between experiment tube and transition conduit and between experiment tube and anemostat.
The shape of experiment tube can be modified according to flexible body actual fed pipeline configuration, as cross section be square or
Racetrack, or axially there is certain flexibility or degree of reducing.
Accompanying drawing explanation
Fig. 1 is the test research device of existing two-dimensional flow soap-film.
Fig. 2 is the structural representation of this utility model embodiment.
Fig. 3 is the structural representation of the experiment tube of this utility model embodiment.
Fig. 4 is the structural representation of this utility model embodiment bracket.
Fig. 5 is the structural representation of this utility model embodiment bottom bracket.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described:
So-called straight tube, is straight line for body axis, and pipe diameter is the most identical.
As shown in Figure 2-5, the present embodiment includes the blower fan 1 assembled the most successively, stablizes pipe 2, mistake
Cross pipe 3, experiment tube 4 and anemostat 5.All pipe fittings all include inlet and outlet.Blower fan 1 goes out
The sectional area in air port is S1, blower fan 1 air outlet is connected with stablizing pipe 2 import, stablizes cutting of pipe 2
Area is S2, and S2≥5S1；Stablize pipe 2 outlet to be connected with transition conduit 3 import, transition conduit 3
For straight tube；Transition conduit 3 outlet is connected with experiment tube 4 import, and transition conduit 3 exports and experiment tube
The diameter of 4 imports keeps consistent；Experiment tube 4 outlet is connected with anemostat 5 import, and anemostat
5 outlets freely connect with external environment；Anemostat 5 is straight tube, a diameter of D of anemostat 53, expand
Dissipate a length of L of pipe 53, then L3≥6D3.Between experiment tube 4 and transition conduit 3 and experiment tube 4 and
All connected by flange arrangement between anemostat 5.The shape of experiment tube 4 can be according to flexible body actual fed
Pipeline configuration is modified, if cross section is square or racetrack, or axially have certain flexibility or
Degree of reducing.Experiment tube 4 uses transparent material to make, and transparent material is all the material of existing routine,
Such as the material such as transparent glass, PVC, PE.Blower fan 1 and stablizing is provided with for measuring between pipe 2
Through the effusion meter 61 of throughput.Regulation bypass 62, this regulation it is additionally provided with at blower fan 1 air outlet
Bypass and bypass valve 63 is installed at 62.Wherein, S1And S2Area unrestricted, as long as meeting
S2≥5S1All can meet embodiment demand.In like manner, D3And L3Numerical value not unrestricted yet, as long as
Meet L3≥6D3All can meet embodiment demand.In the present embodiment, S1It it is 300 square centimeters, then
S2It it is 1800 square centimeters；And D3It is 10 centimetres, L3It it is 80 centimetres.It addition, S1Value one
As more than 100 square centimeters, and D3Length be generally higher than 5 centimetres.
The upper screw 41 along experiment tube 4 axial distribution and lower screw 42 is offered at experiment tube 4, on
Screw 41 is positioned at experiment tube 4 top, and lower screw 42 is positioned at bottom experiment tube 4.In experiment tube 4
Being additionally provided with the bracket 7 set up for flexible body, this bracket 7 includes bracket 71 and bottom bracket 72,
Bracket 71 includes the upper screw rod 711 matched with upper screw 41, and on this, the bottom of screw rod 711 is solid
Surely there is upper supporting piece 712；Bottom bracket 72 includes the lower screw rod 721 matched with lower screw 42, under this
The top of screw rod 721 is fixed with lower supporting piece 722.Pass through rotary screw, it is possible to achieve the lifting of screw rod.
Use plug to coordinate between lower screw rod 721 and lower supporting piece 722, i.e. descend and be provided with at supporting piece 722 for lower screw rod
The jack that 721 ends plug.The quantity of lower screw 42 has five, and each lower screw 42 is along experiment
The axial arrangement of pipe 4, one of them lower screw 42 matches with lower screw rod 721, other lower screws
Closed by closure for 42.By bracket 71 and the cooperation of bottom bracket 72, it is possible to achieve soft
The adjustment of gonosome 8 form, flexible body 8 can level set up, can also be horizontal by certain angle
Set up.Connected by upper connecting rod 713 between upper screw rod 711 and upper supporting piece 712, this upper connecting rod 713
Diameter less than 5mm；Connected by lower connecting rod 723 between lower screw rod 721 and lower supporting piece 722,
The diameter of this lower connecting rod 723 is less than 5mm.Herein, upper connecting rod 713 and lower connecting rod 723
It is the thinnest more good, thus reduces its interference to flexible body 8 surrounding flow field.Upper supporting piece 712 and subiculum
Part 722 is U-shape structure, and the opening direction of upper supporting piece 712 and lower supporting piece 722 all sets up, soft
Gonosome 8 can be placed in the opening part of U-shape structure, plays the effect of stable installation, this U-shape structure
Have and run through supporting piece 712 or the passage of lower supporting piece 722, and channel direction phase axial with experiment tube 4
Unanimously, thus reduce the supporting piece interference to flowing, ensure that air-flow, directly by passage, is not subject to as far as possible
Take up the flexible body 8 being set up in U-shape structure opening part (namely at passage) intrusively.
In this utility model, opening blower fan 1, the wind of blower fan blowout is referred to as flowing, and this flows for having
The wind of certain pressure, now flows and unstable, flows after entrance stablize pipe 2, by stabilivolt 2 reality
Stablizing of existing air-flow.Flowing after Wen Ding enters transition conduit 3, and this transition conduit 3 is straight tube, by mistake
Cross pipe 3 to realize stablize smoothly transitting of air-flow between pipe 2 and experiment tube 4, it is to avoid because of sectional dimension
Sudden change cause air-flow turmoil, affect experiment effect.Anemostat then avoids experiment tube 4 and external environment
Directly contact, reduce the ambient pressure impact on experiment tube 4 flow field.Flexible body 8 is set up in torr
On frame 7, when entering, from flowing of stabilivolt 2, the flexible body 8 blowing afloat on bracket 7 after experiment tube 4,
Now the movement locus of flexible body 8, speed and form can observe directly, or by a high speed
Video camera is filmed, thus realizes the research of flexible body 8 three-dimensional visualization, and the speed flowed
Not do not limit, can be used for Reynolds number bigger time flexible body experiment.
Claims (9)
1. a flexible body motion visual research device in uniform incoming flow, is characterized in that, include:
Blower fan, the sectional area of this fan outlet is S1；
The stable pipe being connected with fan outlet, the sectional area of this stable pipe is S2, then S2≥5S1；
The transition conduit being connected with stable pipe, this transition conduit is straight tube；
The experiment tube being connected with transition conduit, this experiment tube uses transparent material to make；
The anemostat being connected with experiment tube, this anemostat is straight tube, a diameter of D of anemostat3,
The a length of L of anemostat3, then L3≥6D3；
The bracket being installed in experiment tube；
The mouth of pipe engaged with experiment tube at described transition conduit is transition conduit outlet, at experiment tube and transition
The mouth of pipe that pipe engages is experiment tube import, this experiment tube import and transition conduit outlet shape phase one
Cause
Blower fan, stable pipe, transition conduit, experiment tube, anemostat assemble the most successively.
Flexible body motion visual research device in uniform incoming flow the most according to claim 1,
It is characterized in that: be additionally provided with regulation bypass at described fan outlet, at this regulation bypass, bypass be installed
Valve.
Flexible body motion visual research device in uniform incoming flow the most according to claim 1,
It is characterized in that: described blower fan and stablize and be provided with effusion meter between pipe.
Flexible body motion visual research device in uniform incoming flow the most according to claim 1,
It is characterized in that: at described experiment tube, offer the upper screw along experiment tube axial distribution and lower screw, on
Screw is positioned at experiment tube top, and lower screw is positioned at bottom experiment tube, described bracket include bracket and
Bottom bracket, bracket includes the upper screw rod matched with upper screw, and on this, the bottom of screw rod is fixed with
Supporting piece；Bottom bracket includes the lower screw rod matched with lower screw, and the top of this lower screw rod is fixed with subiculum
Part.
Flexible body motion visual research device in uniform incoming flow the most according to claim 4,
It is characterized in that: the quantity of described lower screw at least three, each lower screw is along the axial row of experiment tube
Row；It is additionally provided with closure at lower screw, blocks fewer than lower screw quantity one of quantity.
Flexible body motion visual research device in uniform incoming flow the most according to claim 5,
It is characterized in that: connected by upper connecting rod between described upper screw rod and upper supporting piece, the diameter of this upper connecting rod
Less than 5mm；Connected by lower connecting rod between described lower screw rod and lower supporting piece, this lower connecting rod straight
Footpath is less than 5mm.
Flexible body motion visual research device in uniform incoming flow the most according to claim 4,
It is characterized in that: for the cooperation that removably connects between described lower screw rod and lower supporting piece.
Flexible body motion visual research device in uniform incoming flow the most according to claim 4,
It is characterized in that: described upper supporting piece and lower supporting piece are U-shape structure, this U-shape structure has and runs through
Supporting piece or the passage of lower supporting piece, the opening direction of upper supporting piece and lower supporting piece all sets up, and passage side
To the most consistent with experiment tube.
Flexible body motion visual research device in uniform incoming flow the most according to claim 1,
It is characterized in that: between described experiment tube and transition conduit and between experiment tube and anemostat, all pass through flange arrangement
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620449196.7U CN205642799U (en) | 2016-05-17 | 2016-05-17 | Visual research device of flexible body motion in even incoming flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620449196.7U CN205642799U (en) | 2016-05-17 | 2016-05-17 | Visual research device of flexible body motion in even incoming flow |
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| Publication Number | Publication Date |
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| CN205642799U true CN205642799U (en) | 2016-10-12 |
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ID=57056383
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620449196.7U Withdrawn - After Issue CN205642799U (en) | 2016-05-17 | 2016-05-17 | Visual research device of flexible body motion in even incoming flow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841923A (en) * | 2016-05-17 | 2016-08-10 | 浙江理工大学 | Flexible body motion visual researching device in uniform flow |
-
2016
- 2016-05-17 CN CN201620449196.7U patent/CN205642799U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841923A (en) * | 2016-05-17 | 2016-08-10 | 浙江理工大学 | Flexible body motion visual researching device in uniform flow |
| CN105841923B (en) * | 2016-05-17 | 2018-07-17 | 浙江理工大学 | Flexible body moves visual research device in a kind of uniform incoming flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161012 Effective date of abandoning: 20180717 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20161012 Effective date of abandoning: 20180717 |