CN105675249B - A kind of sliding extension device for motion platform thermal protection stable water supply - Google Patents
A kind of sliding extension device for motion platform thermal protection stable water supply Download PDFInfo
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- CN105675249B CN105675249B CN201610182693.XA CN201610182693A CN105675249B CN 105675249 B CN105675249 B CN 105675249B CN 201610182693 A CN201610182693 A CN 201610182693A CN 105675249 B CN105675249 B CN 105675249B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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Abstract
A kind of sliding extension device for motion platform thermal protection stable water supply, including the flexible water pipe for being used to supply water with draining, the every group of water pipe that stretches includes the first fixing pipe (1), the second fixing pipe (5), the first adjustable pipe (2), the second adjustable pipe (4) and water collection chamber (9)；First fixing pipe (1) and the second fixing pipe (5) are fixed on ground (8), and the first fixing pipe (1) outer end is connect with confession/main sewer, and the second fixing pipe outer end is sealed with end socket；First adjustable pipe (2) and the second adjustable pipe (4) are respectively fitted in the first fixing pipe (1) and the second fixing pipe (5), and are slided in the first fixing pipe (1) and the second fixing pipe (5) respectively；The external part composition three-port structure of one end of water collection chamber (9), the external part of the first adjustable pipe (2) and the second adjustable pipe (4), the other end of water collection chamber (9) and the cooling water inlet or outlet of motion platform (3).The present invention occupies little space, and supplies water and stablizes.
Description
Technical field
The present invention relates to a kind of telescopic device, more particularly to a kind of telescopic device of feed pipe.
Background technology
In the occasions such as high temperature heat structure wind-tunnel, there is the motions for much needing thermal protection, such as high-temperature tunnel
In model mobile platform, moveable collector collection gas port etc..The design of model mobile platform is to realize the suitable of wind-tunnel
Profit start because test model need wind-tunnel start after just from laterally enter heat examination region.Similarly, for compatibility test
The movement of part, the part-structure (such as collector collection gas port) of diffuser will also be designed to moveable form.Under hot environment, this
The thermal protection of a little motion platforms is just into urgent problem.Thermal protection generally use chuck in combustion gas stream heat structure wind-tunnel
The mode of water cooling, to motion platform stable water supply be realize thermal protection difficult point because stable water supply just can guarantee it is cold in chuck
But water flow velocity is stablized, and just model support etc. can be prevented to be burned out.
For the water cooling of moving structure, metal hose or single fixing pipe telescoping tube can be used to supply water.But synthesis is examined
Space, pressure of supply water, water supply and the thermal environment for considering experimental cabin find that the scheme of metal hose is infeasible later, specifically have
4 reasons below：1. metal hose is moved with motion platform, the moving range of motion platform is big, movement velocity is just led soon
Cause the space that hose needs big, and the space in experimental cabin is smaller, it is impossible to it meets the requirements；2. it is high to cool down water flow velocity, for hydraulic pressure
Power is big, and metal hose is not flexible under high pressure；After 3. cooling water inflow is big, and metal hose diameter reaches 100mm~200mm
It is more difficult to reach the bending degree met the requirements；4. at high temperature, there is the risk being burned out in hose.In model sport platform
During grade moving structures quickly move back and forth, simple single fixing pipe telescoping tube fluid pressure variation is excessive, can cause
The problems such as chilled(cooling) water supply (CWS) is unstable, therefore single fixing pipe telescoping tube does not apply to yet.
Invention content
The technical problem to be solved by the present invention is to：It overcomes the shortage of prior art, one kind is provided and occupies little space, can realize
The sliding extension device of motion platform thermal protection stable water supply.
The technical solution adopted in the present invention is：
A kind of sliding extension device for motion platform thermal protection stable water supply, including be used for supply water flexible water pipe and
For the flexible water pipe of draining, the every group of water pipe that stretches includes the first fixing pipe, the second fixing pipe, the first adjustable pipe, the second activity
Pipe and water collection chamber；Motion platform is respectively fixedly connected with the first adjustable pipe and the second adjustable pipe；First respectively positioned at both sides is solid
Fixed tube and the second fixing pipe fix on the ground, and the first fixing pipe outer end is connect with water main or main sewer, and second fixes
Pipe outer end is sealed with end socket；First adjustable pipe and the second adjustable pipe are between the first fixing pipe and the second fixing pipe, the first activity
Pipe sleeve slidably reciprocates in the first fixing pipe in the first fixing pipe, and the second movable pipe sleeve is solid second in the second fixing pipe
It slidably reciprocates in fixed tube；The external part composition threeway knot of one end of water collection chamber, the external part of the first adjustable pipe and the second adjustable pipe
The other end difference of the water collection chamber of structure, the other end for the water collection chamber of the flexible water pipe of water supply and the flexible water pipe for draining
It is connected with the cooling water inlet and cooling water outlet of motion platform.
It is described for water supply flexible water pipe and be one group for the flexible water pipe of draining, two groups of water pipe parallels of stretching
Row, and the second fixing pipe of two groups of water pipes that stretch is located at the same side, two the second fixing pipes pass through exhaust close to one end of end socket
Pipeline connection.
The flexible water pipe further includes two groups of sealing cover groups, and the sealing cover group includes the first sealing cover and the second sealing
Lid, the first sealing cover and the second sealing cover are circular ring shape, are dismountable fixation between the first sealing cover and the second sealing cover
Connection, the first sealing cover end face and the second sealing cover end face are respectively equipped with the annular groove and annular protrusion of mutual cooperation, annular
There is gasket between groove and annular protrusion, the medial surface of the second sealing cover is equipped with annular groove, O-ring is housed in annular groove；Institute
The first adjustable pipe and the second adjustable pipe is stated to realize in the first fixing pipe and the second fixing pipe by one group of sealing cover group respectively
Slide, the inner end of the first fixing pipe is coaxially connected with the first sealing cover, the first movable pipe sleeve in corresponding second sealing cover simultaneously
It is slidably matched with corresponding second sealing cover；The inner end of second fixing pipe is coaxially connected with another first sealing cover, and second lives
Dynamic pipe sleeve is in another corresponding second sealing cover and is slidably matched therewith.
The length of second sealing cover is be sleeved on the first adjustable pipe therein or the second activity pipe outside diameter 1/5~1/3.
The internal diameter of first fixing pipe is bigger 8~10mm than the outer diameter of the first adjustable pipe, and the internal diameter of the second fixing pipe is than
Big 8~the 10mm of outer diameter of two adjustable pipes.
The outer surface roughness of first adjustable pipe or the second adjustable pipe is less than Ra0.8 μm, and through chromium plating process.
The advantages of the present invention over the prior art are that：
1) the sliding extension device for motion platform thermal protection stable water supply of the invention, by the fixed fixing pipe in both ends
It is formed with adjustable pipe, adjustable pipe of the motion platform cooling water outlet and inlet with sliding extension device is connected, and the two is synchronized with the movement, real
Motion platform solar heat protection water supply problem is showed, space is saved in telescopic design.
2) present invention follows slip using constant volume chamber realization water collector water outlet, since adjustable pipe is transported in fixing pipe
Dynamic, overall volume is constant, therefore adjustable pipe back and forth movement, and water can be complementary to one another between the first adjustable pipe and the second adjustable pipe,
Water variation is small in motion platform motion process, will not generate larger fluid loss, and adjustable pipe movement will not generate larger water
Resistance overcomes pressure adaptation problem caused by changing due to cavity volume, realizes stable water supply.
3) it ensure that adjustable pipe movement over long distances without clamping stagnation using short sealing surface structure between fixing pipe and adjustable pipe.
4) working environment of the invention is severe, and certain interval is provided between adjustable pipe and fixing pipe, is prevented in adjustable pipe
Clamping stagnation occurs in motion process.
5) the sealing element sealed reliable in the present invention, and using the structure of the first sealing cover and the second sealing cover, sealing element
It is convenient to replace.
6) adjustable pipe roughness of excircle is less than Ra0.8 μm, and implements chromium plating process, improves anti-corrosive properties and wearability.
Description of the drawings
Fig. 1 sliding extension devices connect overall schematic with motion platform；
Fig. 2 sliding extensions device side regards diagrammatic cross-section；
Fig. 3 sliding extension device vertical views；
Fig. 4 fixing pipes, sealing cover and activity tube seal structure；
Fig. 5 fixing pipes, sealing cover and activity tube seal structure partial enlarged view；
Fig. 6 sealing cover structure figures；
Fig. 7 adjustable pipes, water collection chamber connection structure diagram.
Specific embodiment
Fig. 1 is the overall schematic that motion platform is connected with sliding extension device, and two flexible water pipes are each responsible for supplying
Water and draining.Fig. 2 is the structure diagram of sliding extension device, and sliding extension device includes one group of flexible water pipe for water supply
With one group be used for draining flexible water pipe, every group stretch water pipe include the first fixing pipe 1, the second fixing pipe 5, the first adjustable pipe 2,
Second adjustable pipe 4, sealing cover group 7 and water collection chamber 9.First adjustable pipe 2, the second adjustable pipe 4, the first fixing pipe 1, the second fixing pipe
5 is coaxial.Motion platform 3 is to need what water flowing cooled down, and the platform to move linearly.Motion platform 3 and sliding extension device
The first adjustable pipe 2 and the second adjustable pipe 4 be respectively fixedly connected with, the first adjustable pipe 2 and the second adjustable pipe 4 follow motion platform
3 movements.Fig. 3 is the vertical view of sliding extension device, and sliding extension device subsequently exists in cooling water supply to motion platform 3
Condensed moisture is supplied into several roads on entire motion platform 3 by the stent on motion platform 3, realizes solar heat protection.The two of flexible water pipe
End is respectively the first fixing pipe 1 and the second fixing pipe 5, and 1 outer end of the first fixing pipe is connected by flange and external confession/main sewer
It connects, the outer end closing of the second fixing pipe is sealed with end socket.First fixing pipe 1 and the second fixing pipe 5 are horizontally fixed on fixing pipe branch
On frame 6, fixed pipe holder 6 is connect with ground 8.First adjustable pipe 2 and the second adjustable pipe 4 are fixed in the first fixing pipe 1 and second
Between pipe 5, the first adjustable pipe 2 coordinates with the first fixing pipe 1, and is sleeved in the first fixing pipe 1, in the first fixing pipe 1 back and forth
It slides, the second adjustable pipe 4 coordinates with the second fixing pipe 5, and is sleeved in the second fixing pipe 5, is slided back and forth in the second fixing pipe 5
It is dynamic.For adjustable pipe in platform motion process, the volume in adjustable pipe and fixing pipe is changeless, ensure that water collection chamber 9
Will not dehydration, the problem of there will not be water pressure acute variation.The design of four-part form is avoided in the first adjustable pipe 2 and second
The situation that adjustable pipe 4 says existing parital vacuum with 3 quick moving process middle pipe of motion platform or pressure is increased sharply, it is ensured that moving machine
Structure can realize quick movement.In addition, such design occupies little space, the practical feelings of narrow space in experimental cabin are also complied with
Condition.
In the present embodiment, operating ambient temperature is 400 DEG C, and working time 1000s, model support working platform is formed
1500mm, movement velocity 0.75m/s, pipeline latus rectum DN150mm, pressure of supply water 0.8MPa, supply water temperature room temperature, temperature at discharging condensate are small
In 50 DEG C, the maximum distance of platform movement is 1.5m.
The element that sliding extension device can work normally is that each section of tube body good can be tightly connected, the first adjustable pipe
Sealed connection between 2 and first fixing pipe 1, the second adjustable pipe 4 and the second fixing pipe 5 is as shown in Figure 4.Ensure that adjustable pipe exists
Quick and long range dynamic sealing in fixing pipe, needs fixing pipe to remain high fit precision, Cai Nengbao with adjustable pipe
Sealed reliable is demonstrate,proved, but the device working environment is extremely severe, temperature change is larger, easily occurs clamping stagnation during work, scratches sealing
The problems such as face, leakage.According to the device working environment, sealing cover and the short sealing surface structure of adjustable pipe are employed.
As shown in figure 4, sealing cover group 7 includes the first sealing cover and the second sealing cover, the first fixing pipe 1 and the first adjustable pipe
One end of 2 cooperations are connected with the first sealing cover, and the first sealing cover and the second sealing cover are circular ring shape, the first sealing cover and second
It is to be removably fixedly connected between sealing cover, the first sealing cover is connected with the second sealing cover by screw thread in the present embodiment
It connects.First sealing cover end face and the second sealing cover end face are respectively equipped with the annular groove and annular protrusion of mutual cooperation, and annular is recessed
There is gasket 11 between slot and annular protrusion, the second sealing cover is sleeved on outside the first adjustable pipe 2, is coordinated with the first adjustable pipe 2, first
Adjustable pipe 2 can slidably reciprocate along the second sealing cover, and the medial surface of the second sealing cover is equipped with annular groove, and O-ring is housed in annular groove
12, O-ring 12 is rubber ring, for sealing.In the present embodiment, the size of O-ring 12 is 8 × φ of φ 160.Annular groove can be
Together, or more than twice or twice.The first activity of sealed connection between second adjustable pipe 4 and the second fixing pipe 5
Sealed connection between pipe 2 and the first fixing pipe 1 is identical, realizes that sealing is slidably connected also by sealing cover group 7, the first sealing cover
It is connected with the second fixing pipe 5, the second sealing cover is sleeved on outside the second adjustable pipe 4, is coordinated with the second adjustable pipe 4, and the second adjustable pipe 4 can
It slidably reciprocates along the second sealing cover, the second adjustable pipe is sealed with the second sealing cover by O-ring 12.It is close in second fixing pipe 5
One end of end socket is also equipped with gas exhaust piping 10, and gas exhaust piping 10 will be connected for, the flexible pipeline of row, prevent having gas in inlet pipeline
Body is got lodged in fixing pipe.The partial enlarged view of 7 part of sealing cover group is as shown in figure 5, the second sealing cover is as shown in Figure 6.
Due to using short sealing surface structure, the length of the second sealing cover is lived for the first matched adjustable pipe 2 or second
The 1/5~1/3 of dynamic 4 outer diameter of pipe, preferably 42mm~52mm in the present embodiment, is to reduce manufacture using the reason of short sealing surface structure
Difficulty.The length of second sealing cover will can meet sealing, and ensure not generating interference.Other than in sealing surface structure, activity
The outer diameter of pipe and the internal diameter of fixing pipe have certain distance, this is that adjustable pipe is prevented to be concerned with during the motion with fixing pipe
It relates to.If the length of sealing surface structure is long, the problem of may cannot avoiding interference with, the difficulty of manufacture processing is increased.And
And first the internal diameter of fixing pipe 1 have with the outer diameter of the first adjustable pipe 2, the internal diameter of the second fixing pipe 5 and the outer diameter of the second adjustable pipe 4
The gap of 4mm~6mm, i.e. its diameter differ 8~10mm, ensure that adjustable pipe movement over long distances without clamping stagnation；First adjustable pipe, 2 He
The outer surface roughness of second adjustable pipe 4 is Ra0.8 μm, and implements chromium plating process, improves anti-corrosive properties and wearability；Second sealing
It is connected by screw bolts between lid and the first sealing cover, is conveniently replaceable O-ring, keep sealing reliability.In the first fixing pipe or
Two fixing pipe medial surfaces set annular groove, by the O-ring in annular groove and the movable seal of tube, ensure sealing reliability.
Water collection chamber 9, the first adjustable pipe 2 and the second adjustable pipe 4 composition three-port structure, by flanged joint, realize and supply water, such as
Shown in Fig. 7.
The water collection chamber 9 of 3 cooling water inlet 13 of motion platform and cooling water outlet with sliding extension device adjustable pipe is connected,
The two is synchronized with the movement, and realizes 3 solar heat protection water supply problem of motion platform.In sliding extension device motion process, the telescoping tube appearance of a street
Product is constant so that pressure of supply water is constant in flexible pipeline, realizes the quick dispensing of model, i.e. model is moved rapidly into or removes wind
Hole.By structure, Seal Design, the slip of sliding extension device adjustable pipe in the quick launch process of implementation model.
Pipeline supply water, water flow reach regulation requirement after, start electric cylinder, electric cylinder drive motion platform 3, water collection chamber 9,
First adjustable pipe 2 and the second adjustable pipe 4 move along a straight line, and the first adjustable pipe 2 is slided in the second fixing pipe 1, the second adjustable pipe 4
It is slided in 4 endoporus of the second fixing pipe, realizes that motion platform 3 is model support in high-speed cruising, model continuously supplies, draining.
Water temperature can be with continuous work 30 minutes or more at 120 DEG C, which can be with continuous under ensuring equipment dynamic
For the reliable operation of, draining sealing.
Unspecified part of the present invention belongs to technology well known to those skilled in the art.
Claims (6)
1. a kind of sliding extension device for motion platform thermal protection stable water supply, which is characterized in that including being used for what is supplied water
Flexible water pipe and the flexible water pipe for draining, the every group of water pipe that stretches include the first fixing pipe (1), the second fixing pipe (5), first
Adjustable pipe (2), the second adjustable pipe (4) and water collection chamber (9)；Motion platform (3) and the first adjustable pipe (2) and the second adjustable pipe (4)
It is respectively fixedly connected with；It is fixed on ground (8) positioned at the first fixing pipe (1) of both sides and the second fixing pipe (5) respectively, first is solid
Fixed tube (1) outer end is connect with water main or main sewer, and the second fixing pipe outer end is sealed with end socket；First adjustable pipe (2) and
For second adjustable pipe (4) between the first fixing pipe (1) and the second fixing pipe (5), the first adjustable pipe (2) is sleeved on the first fixing pipe
(1) it in, slidably reciprocates in the first fixing pipe (1), the second adjustable pipe (4) is sleeved in the second fixing pipe (5), in the second fixing pipe
(5) it slidably reciprocates in；The external part group of the lower end of water collection chamber (9), the external part of the first adjustable pipe (2) and the second adjustable pipe (4)
Into three-port structure, the water collection chamber (9) of the upper end for the water collection chamber (9) of the flexible water pipe of water supply and the flexible water pipe for draining
Upper end connected respectively with the cooling water inlet of motion platform (3) and cooling water outlet.
2. a kind of sliding extension device as described in claim 1 for being used for motion platform thermal protection stable water supply, feature exist
In, it is described for water supply flexible water pipe and be one group for the flexible water pipe of draining, two groups of water pipes that stretch are arranged in parallel, and
The second fixing pipe (5) of two groups of water pipes that stretch passes through exhaust positioned at the same side, two the second fixing pipes (5) close to one end of end socket
Pipeline (10) connects.
3. a kind of sliding extension device as claimed in claim 1 or 2 for being used for motion platform thermal protection stable water supply, feature
It is, the flexible water pipe further includes two groups of sealing cover groups (7), and the sealing cover group (7) is close including the first sealing cover and second
Capping, the first sealing cover and the second sealing cover are circular ring shape, are dismountable solid between the first sealing cover and the second sealing cover
Fixed connection, the first sealing cover end face and the second sealing cover end face are respectively equipped with the annular groove and annular protrusion of mutual cooperation, ring
There is gasket (11) between connected in star and annular protrusion, the medial surface of the second sealing cover is equipped with annular groove, is equipped in annular groove O-shaped
It encloses (12)；First adjustable pipe (2) and the second adjustable pipe (4) are realized respectively by one group of sealing cover group (7) fixes first
The slip in (1) and the second fixing pipe (5) is managed, inner end and the first sealing cover of the first fixing pipe (1) are coaxially connected, the first activity
Pipe (2) is sleeved in corresponding second sealing cover and is slidably matched with corresponding second sealing cover；The inner end of second fixing pipe (5) with
Another first sealing cover is coaxially connected, and the second adjustable pipe (4) is sleeved in another corresponding second sealing cover and slides therewith
Cooperation.
4. a kind of sliding extension device as claimed in claim 3 for being used for motion platform thermal protection stable water supply, feature exist
In the length of second sealing cover is be sleeved on the first adjustable pipe (2) therein or the second adjustable pipe (4) outer diameter 1/5~1/
3。
5. a kind of sliding extension device for motion platform thermal protection stable water supply as described in one of claims 1 or 2,
It is characterized in that, the internal diameter of first fixing pipe (1) is bigger 8~10mm than the outer diameter of the first adjustable pipe (2), the second fixing pipe (5)
Internal diameter it is bigger 8~10mm than the outer diameter of the second adjustable pipe (4).
6. a kind of sliding extension device as claimed in claim 1 or 2 for being used for motion platform thermal protection stable water supply, feature
It is, the outer surface roughness of first adjustable pipe (2) or the second adjustable pipe (4) is less than Ra0.8 μm, and through chromium plating process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182693.XA CN105675249B (en) | 2016-03-28 | 2016-03-28 | A kind of sliding extension device for motion platform thermal protection stable water supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182693.XA CN105675249B (en) | 2016-03-28 | 2016-03-28 | A kind of sliding extension device for motion platform thermal protection stable water supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105675249A CN105675249A (en) | 2016-06-15 |
| CN105675249B true CN105675249B (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610182693.XA Active CN105675249B (en) | 2016-03-28 | 2016-03-28 | A kind of sliding extension device for motion platform thermal protection stable water supply |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107966262B (en) * | 2017-11-20 | 2019-07-12 | 北京航天长征飞行器研究所 | A kind of high-temperature vacuum wind tunnel test cabin and diffuser overall structure and sliding compensation method for thermal with sliding thermal compensation function |
| CN115038321B (en) * | 2022-08-08 | 2022-11-08 | 江苏淮海新能源股份有限公司 | Motor controller heat abstractor |
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| CN1031032A (en) * | 1987-08-03 | 1989-02-15 | 弗劳股份公司 | The improvement whizzer of rotary seal is housed on fixing upper end cover |
| JP2000292305A (en) * | 1999-04-05 | 2000-10-20 | Mitsubishi Heavy Ind Ltd | Wind tunnel test system for cooling tower |
| JP2008267976A (en) * | 2007-04-20 | 2008-11-06 | Toyo Eng Works Ltd | Defrosting system for large low-temperature wind tunnel air cooler |
| CN201983918U (en) * | 2011-03-22 | 2011-09-21 | 中国人民解放军国防科学技术大学 | Retractable diffuser for supersonic wind tunnel |
| CN102829945A (en) * | 2012-08-30 | 2012-12-19 | 华南理工大学 | Telescopic wind duct for wind tunnel |
| CN104060989A (en) * | 2013-03-21 | 2014-09-24 | 刘素华 | Reciprocatingly telescopic water-supplying device of impact-type mining machine |
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2016
- 2016-03-28 CN CN201610182693.XA patent/CN105675249B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031032A (en) * | 1987-08-03 | 1989-02-15 | 弗劳股份公司 | The improvement whizzer of rotary seal is housed on fixing upper end cover |
| JP2000292305A (en) * | 1999-04-05 | 2000-10-20 | Mitsubishi Heavy Ind Ltd | Wind tunnel test system for cooling tower |
| JP2008267976A (en) * | 2007-04-20 | 2008-11-06 | Toyo Eng Works Ltd | Defrosting system for large low-temperature wind tunnel air cooler |
| CN201983918U (en) * | 2011-03-22 | 2011-09-21 | 中国人民解放军国防科学技术大学 | Retractable diffuser for supersonic wind tunnel |
| CN102829945A (en) * | 2012-08-30 | 2012-12-19 | 华南理工大学 | Telescopic wind duct for wind tunnel |
| CN104060989A (en) * | 2013-03-21 | 2014-09-24 | 刘素华 | Reciprocatingly telescopic water-supplying device of impact-type mining machine |
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| CN105675249A (en) | 2016-06-15 |
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