CN106525382B - Push rod and test chamber side door device - Google Patents
Push rod and test chamber side door device Download PDFInfo
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- CN106525382B CN106525382B CN201611190455.XA CN201611190455A CN106525382B CN 106525382 B CN106525382 B CN 106525382B CN 201611190455 A CN201611190455 A CN 201611190455A CN 106525382 B CN106525382 B CN 106525382B
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- side door
- crossbar
- connecting rod
- intermediate connecting
- segmental arc
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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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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses a kind of push rods, including：First crossbar；Second crossbar；Intermediate connecting rod, it is to recessed arcuate structure, and the upper end of intermediate connecting rod is connected to the right end of first crossbar by the first segmental arc, in obtuse angle, and first crossbar and intermediate connecting rod are located in a perpendicular for the extension line of first crossbar and the upper end tangent line of intermediate connecting rod；The lower end of intermediate connecting rod is connected to one end of a lower link by the second segmental arc, lower link is to the inside of perpendicular and extends downwards, the other end of lower link is connected to the right end of second crossbar by third segmental arc, to make second crossbar be arranged in the inside of perpendicular；Wherein, the second segmental arc and third segmental arc are lateral bend to the left, to make first crossbar and second crossbar be arranged in the left side of intermediate connecting rod.The invention also discloses a kind of test chamber side door devices.The present invention eliminates the gap between ground and side door frame automatically, ensures the safety of vehicle and personnel during equipment disengaging.
Description
Technical field
The present invention relates to the test chamber side doors of wind tunnel test field more particularly to a kind of push rod and the application push rod
Device.
Background technology
Test section is one of core component of hypersonic wind tunnel, and front end is connected with jet pipe, and rear end is connected with two venturis,
Diffuser, model support mechanism and some auxiliary equipments are placed in test section.In order to ensure the safety of wind tunnel test, design examination
To consider to bear internal pressure and vacuum two states when testing section.The side door of test section is as important personnel and logistics corridor, also together
There are above two stresses for sample, and since side door is moving component, and structure size is larger, while ensureing internal pressure strength and true
Empty leakproofness, and facilitate personnel, equipment to come in and go out and bring difficulty for the design of side door.
In the invention of Patent No. 201310389060.2, a kind of side door switching mechanism is devised, but the mechanism exists not
Foot, as shown in Figure 1, working as side door in the open state, there are gaps 1 between ground 2 and side door frame, since side door opening and closing is adopted
With the mode of translation, which is to reserve translation space to side door, therefore the gap cannot eliminate and minimum widith is side
The thickness of door, the side door of test section is due to carrying, and often thickness is very big, therefore the gap is also very in practical structures
Greatly, and access device weight is larger, vehicle transport or several staff need to be used to move jointly, larger gap is to vehicle
Passage is made troubles, and influences the safety of staff.
Invention content
In view of the above technical problems, the present invention provides a kind of push rods, are installed on test chamber side door, Ke Yi
Side door pushes the cover board being set between side door frame and ground open automatically during closing, and cover board is made not interfered with side door,
And when side door is opened, cover board is automatically fallen off, the automatic gap eliminated between ground and side door frame, during ensureing that equipment passes in and out
The safety of vehicle and personnel.
The present invention also provides the pneumatic test section side door devices of the above-mentioned push rod of application.
Technical solution provided by the invention is：
A kind of push rod, including：
First crossbar；
Second crossbar；
Intermediate connecting rod, the shape with reclinate smoothed curve, and the upper end of the intermediate connecting rod passes through first
Segmental arc is connected to the right end of the first crossbar, and the extension line of the first crossbar and the upper end tangent line of the intermediate connecting rod are in
Obtuse angle, and the first crossbar and the intermediate connecting rod are located in a perpendicular；
The lower end of the intermediate connecting rod is connected to one end of a lower link by the second segmental arc, and the lower link is to described
The inside of perpendicular simultaneously extends downwards, and the other end of the lower link is connected to the second crossbar by third segmental arc
Right end, to make the second crossbar be arranged in the inside of the perpendicular；
Wherein, second segmental arc and the third segmental arc are lateral bend to the left, to make the first crossbar
The left side of the intermediate connecting rod is arranged in the second crossbar.
Preferably, in the push rod, the lower end tangent line and horizontal line angulation of the intermediate connecting rod are 18 °, institute
It is by the straightway being connect with first segmental arc and the 4th arc being connect with second segmental arc to state intermediate connecting rod
Section is constituted, and the length of the straightway is 98mm.
Preferably, in the push rod, the intermediate connecting rod the second crossbar projection on the horizontal level
Length is more than the length of the second crossbar.
Preferably, in the push rod, the upper end tangent line institute of the extension line of the first crossbar and the intermediate connecting rod
It is angled 130 °, the extension line of the lower link is relative to the perpendicular at 120 °.
Preferably, in the push rod, the extension line of the lower link and the lower end tangent line of the intermediate connecting rod are in
90°。
Preferably, in the push rod, the distance of the second crossbar to the perpendicular is 150mm, described the
One cross bar is 380mm to the distance between horizontal plane where the second crossbar, and the length of the second crossbar is 300mm.
Preferably, in the push rod, the left end of the first crossbar is connected with a side door linkage section.
A kind of test chamber side door device, including：
Side door frame has gap between ground；
Cover board, one side are articulated in the ground, and the other side is overlapped on the side door frame, to close the gap；
Side door, can be arranged in the left side of the side door frame in a manner of the relatively described side door frame translation；
The push rod, the left end of first crossbar are connected to the front end face of the side door, and the left end of second crossbar is connected to
The right side of the side door, and the intermediate connecting rod extends the right side of the side door；
Wherein, when the side door is translated to the close direction of the side door frame, by second segmental arc, lower link with
And the third segmental arc is formed by the lower section that the second turning is inserted into the cover board, the cover board is by the intermediate connecting rod
Support gradually open, then supported by the first turning is formed by by first segmental arc, until the side door is complete
It is moved in the gap, the side door closes the side door frame, and the cover plate support is on the first crossbar；
When the side door is translated to the separate direction of the side door frame, the first crossbar and first turning according to
Secondary to be detached from the cover board, the cover board is gradually reduced by the support of the intermediate connecting rod, and second turning is also detached from later
The cover board, until the side door leaves the gap completely, the side door frame is opened, gap described in the cover closure；
The width of the cover board is 270mm, and the height of horizontal plane is where the first crossbar to the ground
175mm。
Push rod of the present invention is installed on test chamber side door, can be automatic during side door is closed
It pushes the cover board being set between side door frame and ground open, cover board is made not interfered with side door, and when side door is opened, cover board is certainly
Dynamic to fall, the automatic gap eliminated between ground and side door frame ensures the safety of vehicle and personnel during equipment disengaging.
Test chamber side door device of the present invention uses above-mentioned push rod, can be automatic during side door is closed
It pushes the cover board being set between side door frame and ground open, cover board is made not interfered with side door, and when side door is opened, cover board is certainly
Dynamic to fall, the automatic gap eliminated between ground and side door frame ensures the safety of vehicle and personnel during equipment disengaging.
Description of the drawings
Fig. 1 is the structural schematic diagram of test chamber side door switching mechanism in the prior art；
Fig. 2 is the structural schematic diagram of test chamber side door device of the present invention；
Fig. 3 is the structural schematic diagram of test chamber side door switching mechanism of the present invention；
Fig. 4 is the stereogram of push rod of the present invention；
Fig. 5 is the front view of push rod of the present invention；
Fig. 6 is the upward view of push rod of the present invention；
Fig. 7 is the left view of push rod of the present invention.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text
Word can be implemented according to this.
As shown in Fig. 2 to 7, the present invention provides a kind of push rod, including：First crossbar 21；Second crossbar 24；Intermediate connecting rod
23, the shape with reclinate smoothed curve, and the upper end of the intermediate connecting rod 23 is connected by the first segmental arc 22
To the right end of the first crossbar, the upper end tangent line of the extension line of the first crossbar 21 and the intermediate connecting rod 23 in obtuse angle,
And the first crossbar 21 and the intermediate connecting rod 23 are located in a perpendicular；The lower end of the intermediate connecting rod 23 passes through
Two segmental arcs 26 are connected to one end of a lower link 27, and the lower link 27 is to the inside of the perpendicular and prolongs downwards
It stretches, the other end of the lower link 27 is connected to the right end of the second crossbar 24 by third segmental arc 28, described to make
Second crossbar 24 is arranged in the inside of the perpendicular；Wherein, second segmental arc 26 and the third segmental arc 28 are equal
For lateral bend to the left, to make the first crossbar 21 and the second crossbar 24 be arranged in a left side for the intermediate connecting rod 23
Side.
In a preferred embodiment, side door is realized by a side door switching mechanism driving and is opened and closed.Specifically, side door
Switching mechanism includes：Spring 3（4）, sliding block connector 4（4）, nut 5（4）, bolt 6（4）, sliding block 7（4）, lead
Rail 8（2）, bearing 9（2）, cylinder brackets 10（2）, hydraulic cylinder 11（8）, leading screw fixed seat 12, screw 13, leading screw
14, shaft coupling 15, motor 16 and pull rod 17.
Side door switching mechanism is arranged symmetrically relative to two median planes of side door frame, and guide rail is fixedly connected with bearing, every
There are two sliding blocks, 4 sliding blocks to be located at four edges of side door for dress on guide rail, and sliding block is fixedly connected with sliding block connector, bolt
It is connect with nut after the shop front, spring, sliding block connector；Two cylinder brackets are arranged symmetrically in side door both sides, and with branch
Seat is fixedly connected, and hydraulic cylinder is connect by flange with cylinder brackets；The both ends of pull rod are fixed with upper and lower sliding block connector to be connected
It connects, screw is located at the center of pull rod and is connected with it, and motor passes through screw and leading screw after being connect with leading screw by shaft coupling
Fixed seat connects, and leading screw fixed seat is fixedly connected with side door frame.
The closing process of side door is：Side door is initially located in open state, is located at precalculated position（With two planes of symmetry of side door frame
Symmetrically）If side door is in fully open state, when side door needs to close, driving motor first makes its drive lead screw pair
Side door is pulled to far from motor drive direction.In side door moving process, push rod also moves forward（Second segmental arc, lower link and
Third segmental arc collectively forms the second turning of push rod, and the position at second turning is less than cover board）, the second turning first with level
It is positioned over side door frame to contact with the cover board lower surface between ground, with the Forward of side door and push rod, cover board is also along in push rod
Between connecting rod radian, be raised above, and be not in contact collision with forward side door, later, with cover board gradually raise, push away
First turning of bar（That is the first segmental arc）Also it is contacted with cover board, and cover board is finally supported by first crossbar.Wait for that side door is complete
It is moved in gap, closes motor.At this point, still there is certain gap between side door and side door frame, while 8 hydraulic cylinders being driven to make
Its hydraulic axis is stretched out, and after hydraulic axis and side door contact, spring pressure will be overcome to continue to stretch out, between side door and side door frame
Gap is gradually reduced, and until side door and side door frame fit closely, holding oil pressure keeps hydraulic cylinder power output constant, and side door is completed at this time
It closes.
The opening process of side door is：When side door needs to open, while driving 8 hydraulic cylinders that its hydraulic axis is made to withdraw, side
Door moves under the action of spring pressure with hydraulic axis in the same direction, after the drag hook inside on side door connect contact with sliding block, side door
It reaches precalculated position no longer to move with hydraulic axis, hydraulic axis stops driving hydraulic cylinder after leaving side door certain distance and opens electricity
Machine makes it drive lead screw pair that side door is pulled to motor drive direction.With the movement of side door, push rod also moves, and the first of push rod
Turning is detached from cover board first, and with the translation of side door, cover board is moved down along the radian of intermediate connecting rod, and cover board is placed horizontal therewith,
Cover board is left at the second turning later, and motor is closed after side door opens wide side door frame completely, and side door, which is opened, at this time completes.
Using above-mentioned push rod, cover board, normal switching-off side door are lifted automatically in side door closing process；In side door opening process
In put down cover board automatically, eliminate gap, ensure equipment, personnel and vehicle safety during equipment disengaging.
Wherein, the shape of intermediate connecting rod is come out according to the thickness and position design of cover board, need to ensure push rod
Translation motion cover plate can be raised smoothly rapidly, not interfered with side door.The width of cover board is preferably 270mm.Centre connects
Bar has the shape of reclinate smoothed curve, can be by when push rod is transitioned into via the second turning on intermediate connecting rod
The support of intermediate connecting rod is transitioned into the first turning, and is finally raised in first crossbar naturally.Intermediate connecting rod ensures that push rod will not
It blocks, can gently rise or fall.
"inner" of the present invention refers in paper that "outside" refers to outside paper；" left side " corresponds to the left side of attached drawing, " right side "
Corresponding to the right side of attached drawing.Also, heretofore described is left and right just to state conveniently, does not constitute to technical solution
Limitation.
In a preferred embodiment, in the push rod, lower end tangent line and horizontal line the institute angulation of the intermediate connecting rod
Degree is 18 °, and the intermediate connecting rod is to be connect by the straightway that is connect with first segmental arc and with second segmental arc
The 4th segmental arc constitute, the length of the straightway is 98mm.
In a preferred embodiment, in the push rod, the intermediate connecting rod is horizontal flat where the second crossbar
Projected length on face is more than the length of the second crossbar, to enable intermediate connecting rod to be stretched out to front side relative to side door,
In side door closing process, intermediate connecting rod can shift to an earlier date to be contacted with cover board, to gradually lift cover board.
In a preferred embodiment, in the push rod, the extension line of the first crossbar and the intermediate connecting rod
Upper end tangent line angulation is 130 °, and the extension line of the lower link is relative to the perpendicular at 120 °.First crossbar
The upper end tangent line angulation of extension line and intermediate connecting rod can be adjusted according to the size of cover board and installation site.
In a preferred embodiment, in the push rod, under the extension line of the lower link and the intermediate connecting rod
It is in 90 ° to hold tangent line.
In a preferred embodiment, in the push rod, the distance of the second crossbar to the perpendicular is
150mm, the distance between horizontal plane where the first crossbar to the second crossbar are 380mm, the second crossbar
Length is 300mm.The distance of second crossbar to perpendicular can be adjusted according to the thickness of side door；First crossbar is to
The distance between horizontal plane can be adjusted according to the size of cover board and installation site where two cross bars.
In a preferred embodiment, in the push rod, the left end of the first crossbar 21 is connected with side door connection
Section 25.Specifically, first crossbar can be attached by the side door linkage section 25 with side door.
The present invention also provides a kind of test chamber side door devices, including：Between having between side door frame 1, with ground 20
Gap；Cover board 19, one side are articulated in the ground, and the other side is overlapped on the side door frame, to close the gap；Side door
2, can be arranged in the left side of the side door frame in a manner of the relatively described side door frame translation；The push rod 18, first crossbar
21 left end is connected to the front end face of the side door 2, and the left end of second crossbar 24 is connected to the right side of the side door 2, and
The intermediate connecting rod 23 extends the right side of the side door 2；Wherein, flat to the close direction of the side door frame 1 when the side door 2
When shifting, the second turning is formed by by second segmental arc, lower link and the third segmental arc and is inserted into the cover board
Lower section, the cover board is gradually opened by the support of the intermediate connecting rod, then is formed by by by first segmental arc
The support at the first turning, until the side door is moved fully in the gap, the side door closes the side door frame, the lid
Plate is supported on the first crossbar；When the side door is translated to the separate direction of the side door frame, the first crossbar
And first turning is detached from the cover board successively, the cover board is gradually reduced by the support of the intermediate connecting rod, later
Second turning is also detached from the cover board, until the side door leaves the gap completely, the side door frame is opened, the lid
Plate closes the gap；The width of the cover board is 270mm, the height of horizontal plane where the first crossbar to the ground
For 175mm.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (8)
1. a kind of push rod, which is characterized in that including：
First crossbar；
Second crossbar；
Intermediate connecting rod, the shape with reclinate smoothed curve, and the upper end of the intermediate connecting rod passes through the first arc
Section is connected to the right end of the first crossbar, and the upper end tangent line of the extension line of the first crossbar and the intermediate connecting rod is in blunt
Angle, and the first crossbar and the intermediate connecting rod are located in a perpendicular；
The lower end of the intermediate connecting rod is connected to one end of a lower link by the second segmental arc, and the lower link is to described vertical
The inside of plane simultaneously extends downwards, and the other end of the lower link is connected to the right side of the second crossbar by third segmental arc
End, to make the second crossbar be arranged in the inside of the perpendicular；
Wherein, second segmental arc and the third segmental arc are lateral bend to the left, to make the first crossbar and institute
State the left side that second crossbar is arranged in the intermediate connecting rod；
The push rod is installed on test chamber side door, can automatically be pushed open during side door is closed and is set to side door frame
Cover board between ground, makes cover board not interfered with side door, and when side door is opened, cover board is automatically fallen off, automatic to eliminate
Gap between ground and side door frame.
2. push rod as described in claim 1, which is characterized in that the lower end tangent line and horizontal line angulation of the intermediate connecting rod
It it is 18 °, the intermediate connecting rod is to be connect by the straightway that is connect with first segmental arc and with second segmental arc
4th segmental arc is constituted, and the length of the straightway is 98mm.
3. push rod as claimed in claim 2, which is characterized in that the intermediate connecting rod is in horizontal plane where the second crossbar
On projected length be more than the second crossbar length.
4. push rod as claimed in claim 3, which is characterized in that the extension line of the first crossbar is upper with the intermediate connecting rod
It is 130 ° to hold tangent line angulation, and the extension line of the lower link is relative to the perpendicular at 120 °.
5. push rod as claimed in claim 4, which is characterized in that the lower end of the extension line of the lower link and the intermediate connecting rod
Tangent line is in 90 °.
6. the push rod as described in any one of claim 2 to 5, which is characterized in that the second crossbar to the perpendicular
Distance be 150mm, the distance between described first crossbar to horizontal plane where the second crossbar is 380mm, described the
The length of two cross bars is 300mm.
7. push rod as claimed in claim 6, which is characterized in that the left end of the first crossbar is connected with a side door linkage section.
8. a kind of test chamber side door device, which is characterized in that including：
Side door frame has gap between ground；
Cover board, one side are articulated in the ground, and the other side is overlapped on the side door frame, to close the gap；
Side door, can be arranged in the left side of the side door frame in a manner of the relatively described side door frame translation；
Push rod as described in any one of claim 1 to 7, the left end of first crossbar are connected to the front end face of the side door, the
The left end of two cross bars is connected to the right side of the side door, and the intermediate connecting rod extends the right side of the side door；
Wherein, when the side door is translated to the close direction of the side door frame, by second segmental arc, lower link and institute
State third segmental arc and be formed by the lower section that the second turning is inserted into the cover board, the cover board by the intermediate connecting rod branch
Support is gradually opened, then is supported by the first turning is formed by by first segmental arc, until the side door moves completely
In to the gap, the side door closes the side door frame, and the cover plate support is on the first crossbar；
When the side door is translated to the separate direction of the side door frame, the first crossbar and first turning take off successively
From the cover board, the cover board is gradually reduced by the support of the intermediate connecting rod, described in second turning is also detached from later
Cover board, until the side door leaves the gap completely, the side door frame is opened, gap described in the cover closure；
The width of the cover board is 270mm, and the height of horizontal plane where the first crossbar to the ground is 175mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611190455.XA CN106525382B (en) | 2016-12-20 | 2016-12-20 | Push rod and test chamber side door device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611190455.XA CN106525382B (en) | 2016-12-20 | 2016-12-20 | Push rod and test chamber side door device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106525382A CN106525382A (en) | 2017-03-22 |
| CN106525382B true CN106525382B (en) | 2018-09-14 |
Family
ID=58339922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611190455.XA Active CN106525382B (en) | 2016-12-20 | 2016-12-20 | Push rod and test chamber side door device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106525382B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612677B (en) * | 2018-12-13 | 2020-08-14 | 北京航天益森风洞工程技术有限公司 | Air port replacing device of automobile environment wind tunnel |
| CN114441132B (en) * | 2022-04-08 | 2022-06-17 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Side wall plate pulling device for large wind tunnel jet pipe section and pulling method thereof |
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| CN106525382A (en) | 2017-03-22 |
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