CN106525382A - Push rod and wind tunnel test section side door device - Google Patents
Push rod and wind tunnel test section side door device Download PDFInfo
- Publication number
- CN106525382A CN106525382A CN201611190455.XA CN201611190455A CN106525382A CN 106525382 A CN106525382 A CN 106525382A CN 201611190455 A CN201611190455 A CN 201611190455A CN 106525382 A CN106525382 A CN 106525382A
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- Prior art keywords
- side door
- cross bar
- connecting rod
- intermediate connecting
- cover plate
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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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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses a push rod which comprises a first bar, a second bar and a middle connection rod which is a downward concave arc structure. The upper end of the middle connection rod is connected to the right end of the first bar through a first arc section, an obtuse angle is formed by the extension line of the first bar and the upper end tangent line of the middle connection rod, and the first bar and the middle connection rod are in a vertical plane. The lower end of the middle connection rod is connected to one end of a lower connection rod through a second arc section, the lower connection rod extends downward to the inner side of the vertical plane, the other end of the lower connection rod is connected to the right end of the second cross bar through a third arc section, and thus the second bar is arranged to the inner side of the vertical plane, wherein both the second arc section and the third arc section are bent left, and thus the first bar and the second bar are arranged at the left side of the middle connection rod. The invention also discloses a wind tunnel test section side door device. The gap between a ground and a side door frame is automatically eliminated, and the safety of vehicles and personnel in the process of equipment entering and leaving is ensured.
Description
Technical field
The present invention relates to wind tunnel test field, more particularly to a kind of push rod and the test chamber side door using the push rod
Device.
Background technology
Test section is one of core component of hypersonic wind tunnel, and its front end is connected with jet pipe, and rear end is connected with two venturis,
Diffuser, model support mechanism and some auxiliary equipments are laid in test section.In order to ensure the safety of wind tunnel test, design examination
To consider to bear intrinsic pressure and vacuum two states when testing section.The side door of test section as important personnel and logistics corridor, also together
There is above two stress in sample, as side door is moving component, and physical dimension is larger, while ensureing internal pressure strength and true
Empty sealing, and facilitate personnel, equipment discrepancy to 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 is present not
Foot, as shown in figure 1, when side door is in open mode, there is gap 1 between ground 2 and side door frame, as side door opening and closing is adopted
With the mode of translation, the gap is that, in order to give side door reserved translation space, therefore the gap can not eliminate and minimum widith is side
The thickness of door, due to due to carrying, often thickness is very big for the side door of test section, therefore the gap is also very in practical structures
Greatly, and access device weight is larger, vehicle transport or several staff need to be adopted to move jointly, larger gap is to vehicle
It is current to make troubles, and affect the safety of staff.
The content of the invention
For above-mentioned technical problem, the invention provides a kind of push rod, which is installed on test chamber side door, Ke Yi
Side door pushes the cover plate being arranged between side door frame and ground open during closing automatically, cover plate is not interfered with side door,
And when side door is opened, cover plate automatically falls off, the gap between ground and side door frame is eliminated automatically, it is ensured that during equipment turnover
Vehicle and the safety of personnel.
Present invention also offers using the pneumatic test section side door device of above-mentioned push rod.
The present invention provide technical scheme be：
A kind of push rod, including：
First cross bar；
Second cross bar；
Intermediate connecting rod, which has the shape of reclinate smoothed curve, and the upper end of the intermediate connecting rod passes through first
Segmental arc is connected to the right-hand member of first cross bar, and the extension line of first cross bar with the upper end tangent line of the intermediate connecting rod is in
Obtuse angle, and first cross bar and the intermediate connecting rod are 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 inner side of perpendicular simultaneously extends downwards, and the other end of the lower link is connected to second cross bar by the 3rd segmental arc
Right-hand member so that second cross bar is arranged in the inner side of the perpendicular；
Wherein, second segmental arc and the 3rd segmental arc are lateral bend to the left, so that first cross bar
The left side of the intermediate connecting rod is arranged in second cross bar.
Preferably, in described push rod, the lower end tangent line and horizontal line angulation of the intermediate connecting rod are 18 °, institute
It is the 4th arc being connected by the straightway being connected with first segmental arc and with second segmental arc to state intermediate connecting rod
Section is constituted, and the length of the straightway is 98mm.
Preferably, in described push rod, the intermediate connecting rod second cross bar projection on the horizontal level
Length of the length more than second cross bar.
Preferably, in described push rod, the extension line of first cross bar and the upper end tangent line institute of the intermediate connecting rod
130 ° are angled, the extension line of the lower link is relative to the perpendicular into 120 °.
Preferably, in described push rod, the extension line of the lower link with the lower end tangent line of the intermediate connecting rod is in
90°。
Preferably, in described push rod, the distance of second cross bar to the perpendicular is 150mm, described the
One cross bar is 380mm to the distance between the second cross bar place horizontal plane, and the length of second cross bar is 300mm.
Preferably, in described push rod, the left end of first cross bar is connected with a side door linkage section.
A kind of test chamber side door device, including：
Side door frame, which has gap between ground；
Cover plate, its side are articulated in the ground, and opposite side is overlapped on the side door frame, so as to close the gap；
Side door, its by can relatively the side door frame translate in the way of be arranged on the left side of the side door frame；
Described push rod, the left end of the first cross bar are connected to the front end face of the side door, and the left end of the second cross bar is connected to
The right flank 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 second turning for being formed of the 3rd segmental arc is inserted into the lower section of the cover plate, the cover plate is subject to the intermediate connecting rod
Support gradually open, then supported by the first turning for being formed 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 first cross bar；
When the side door to the side door frame away from direction translate when, first cross bar and first turning according to
Secondary to depart from the cover plate, the cover plate is subject to the support of the intermediate connecting rod to be gradually reduced, and second turning also departs from afterwards
The cover plate, 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 plate is 270mm, and first cross bar to the height of ground place horizontal plane is
175mm。
Push rod of the present invention, which is installed on test chamber side door, can be during side door is closed automatically
Push the cover plate being arranged between side door frame and ground open, cover plate is not interfered with side door, and when side door is opened, cover plate is certainly
It is dynamic to fall, eliminate automatically the gap between ground and side door frame, it is ensured that the safety of vehicle and personnel during equipment turnover.
Test chamber side door device of the present invention adopts above-mentioned push rod, can be during side door is closed automatically
Push the cover plate being arranged between side door frame and ground open, cover plate is not interfered with side door, and when side door is opened, cover plate is certainly
It is dynamic to fall, eliminate automatically the gap between ground and side door frame, it is ensured that the safety of vehicle and personnel during equipment turnover.
Description of the drawings
Structural representations of the Fig. 1 for prior art wind hole test section side door switching mechanism；
Fig. 2 is the structural representation of test chamber side door device of the present invention；
Fig. 3 is the structural representation of test chamber side door switching mechanism of the present invention；
Fig. 4 is the axonometric chart 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 embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to description 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 cross bar 21；Second cross bar 24；Intermediate connecting rod
23, which has the shape of reclinate smoothed curve, and the upper end of the intermediate connecting rod 23 is connected by the first segmental arc 22
To first cross bar right-hand member, the extension line of first cross bar 21 with the upper end tangent line of the intermediate connecting rod 23 in obtuse angle,
And first cross bar 21 and the intermediate connecting rod 23 are located in a perpendicular；The lower end of the intermediate connecting rod 23 is by the
Two segmental arcs 26 are connected to one end of a lower link 27, inner side from the lower link 27 to the perpendicular and prolong downwards
Stretch, the other end of the lower link 27 is connected to the right-hand member of second cross bar 24 by the 3rd segmental arc 28, so that described
Second cross bar 24 is arranged in the inner side of the perpendicular；Wherein, second segmental arc 26 and the 3rd segmental arc 28 are equal
For lateral bend to the left, so that first cross bar 21 and second cross bar 24 are arranged in the left side of the intermediate connecting rod 3.
In a preferred embodiment, side door is driven by a side door switching mechanism and realizes opening and closing.Specifically, side door
Switching mechanism includes：Spring 3 (4), slide block connector 4 (4), nut 5 (4), bolt 6 (4), slide 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
14th, shaft coupling 15, motor 16 and pull bar 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, per root
Two slide blocks are housed on guide rail, 4 slide blocks are located at four edges of side door, and slide block is fixedly connected with slide block connector, bolt
It is connected with nut through after the shop front, spring, slide block connector；Two cylinder brackets are arranged symmetrically in side door both sides, and with
Seat is fixedly connected, and hydraulic cylinder is connected with cylinder brackets by flange；The two ends of pull bar are fixed with upper and lower slide block connector and are connected
Connect, screw is located at the center of pull bar and is connected with which, and motor passes through screw and leading screw after shaft coupling is connected with leading screw
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 opening, positioned at precalculated position (with two planes of symmetry of side door frame
Symmetrically), if side door in it is fully opened, when side door needs to close, motor first so as to drive lead screw pair
Side door is pulled to away from motor drive direction.In side door moving process, push rod also move forward (the second segmental arc, lower link and
3rd segmental arc collectively forms the second turning of push rod, and the position at second turning is less than cover plate), the second turning first with level
It is positioned over side door frame to contact with the cover plate lower surface between ground, with the reach of side door and push rod, cover plate is also along in push rod
Between connecting rod radian, be raised above, and do not come in contact collision with forward side door, afterwards, with gradually raising for cover plate, push away
First turning (i.e. the first segmental arc) of bar is also contacted with cover plate, and finally supports cover plate by the first cross bar.Treat that side door is complete
It is moved in gap, closes motor.Now, still there is certain gap between side door and side door frame, while driving 8 hydraulic cylinders to make
Its hydraulic axis is stretched out, and after hydraulic axis are contacted with side door, which will overcome spring pressure to continue to stretch out, between side door and side door frame
Gap is gradually reduced, and until side door is brought into close contact with side door frame, hydraulic cylinder power output is constant to keep oil pressure to make, and now side door is completed
Close.
The opening process of side door is：When side door needs to open, while drive 8 hydraulic cylinders to withdraw its hydraulic axis, side
Door is moved in the same direction with hydraulic axis in the presence of spring pressure, after being connected contact on the inside of the drag hook on side door with slide block, side door
Reach precalculated position no longer to move with hydraulic axis, hydraulic axis stop driving hydraulic cylinder and open electricity after leaving side door certain distance
Machine so as to drive lead screw pair that side door is pulled to motor drive direction.With the movement of side door, push rod is also moved, and the first of push rod
Turning departs from cover plate first, and with the translation of side door, cover plate is moved down along the radian of intermediate connecting rod, and cover plate places level therewith,
Cover plate is left at second turning afterwards, after side door frame is opened wide by side door completely closes motor, and now side door is opened and completed.
Using above-mentioned push rod, cover plate, normal switching-off side door is lifted automatically in side door closing process；In side door opening process
In put down automatically cover plate, eliminate gap, it is ensured that the equipment, personnel and vehicle safety during equipment turnover.
Wherein, the shape of intermediate connecting rod be according to the thickness of cover plate and position design out, push rod need to be ensured
Translation motion cover plate smoothly can be raised rapidly, not interfered with side door.The width of cover plate is preferably 270mm.Centre connects
Bar has the shape of reclinate smoothed curve, when push rod is transitioned on intermediate connecting rod via the second turning, can be subject to
The support of intermediate connecting rod, is transitioned into naturally the first turning, and is finally raised on the first cross bar.Intermediate connecting rod ensures that push rod will not
Block, gently can rise or fall.
" interior " of the present invention is referred in paper, and " outward " is referred to outside paper；The left side of " left side " corresponding to accompanying drawing, " right side "
Corresponding to the right side of accompanying drawing.Also, heretofore described is left and right convenient just to statement, does not constitute to technical scheme
Limit.
In a preferred embodiment, in described push rod, the lower end tangent line of the intermediate connecting rod and horizontal line institute angulation
Spend for 18 °, the intermediate connecting rod is to be connected by the straightway being connected 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 described push rod, the intermediate connecting rod is flat in the second cross bar place level
Length of the projected length on face more than second cross bar, so that intermediate connecting rod can be stretched out to front side relative to side door,
In side door closing process, intermediate connecting rod can shift to an earlier date and contact with cover plate, so as to gradually lift cover plate.
In a preferred embodiment, in described push rod, extension line and the intermediate connecting rod of first cross bar
Tangent line angulation in upper end is 130 °, and the extension line of the lower link is relative to the perpendicular into 120 °.First cross bar
Extension line can be adjusted according to the size of cover plate and installation site with the upper end tangent line angulation of intermediate connecting rod.
In a preferred embodiment, in described push rod, under the extension line of the lower link and the intermediate connecting rod
End tangent line is in 90 °.
In a preferred embodiment, in described push rod, second cross bar to the distance of the perpendicular is
The distance between 150mm, described first cross bar to the second cross bar place horizontal plane are 380mm, second cross bar
Length is 300mm.Second cross bar can be adjusted according to the thickness of side door to the distance of perpendicular；First cross bar is to
The distance between two cross bar place horizontal planes can be adjusted according to the size of cover plate and installation site.
In a preferred embodiment, in described push rod, the left end of first cross bar 21 is connected with side door connection
Section 25.Specifically, the first cross bar can be attached with side door by the side door linkage section 25.
The present invention also provides a kind of test chamber side door device, including：Side door frame 1, between which is had between ground 20
Gap；Cover plate 19, its side are articulated in the ground, and opposite side is overlapped on the side door frame, so as to close the gap；Side door
2, its by can relatively the side door frame translate in the way of be arranged on the left side of the side door frame；Described push rod 18, the first cross bar
21 left end is connected to the front end face of the side door 2, and the left end of the second cross bar 24 is connected to the right flank of the side door 2, and
The intermediate connecting rod 23 extends the right side of the side door 2；Wherein, when the side door 2 is flat to the close direction of the side door frame 1
During shifting, the second turning formed by second segmental arc, lower link and the 3rd segmental arc is inserted into the cover plate
Lower section, the cover plate is subject to the support of the intermediate connecting rod gradually to open, then by being formed 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 first cross bar；When the side door to the side door frame away from direction translate when, first cross bar
And first turning departs from the cover plate successively, the cover plate is subject to the support of the intermediate connecting rod to be gradually reduced, afterwards
Second turning also departs from the cover plate, 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 plate be 270mm, the height of first cross bar to ground place horizontal plane
For 175mm.
Although embodiment of the present invention is disclosed as above, which is not restricted to listed by description and embodiment
With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily
Other modification is realized, therefore under the general concept limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (8)
1. a kind of push rod, it is characterised in that include：
First cross bar；
Second cross bar；
Intermediate connecting rod, which has the shape of reclinate smoothed curve, and the upper end of the intermediate connecting rod passes through the first arc
Section is connected to the right-hand member of first cross bar, and the extension line of first cross bar is with the upper end tangent line of the intermediate connecting rod in blunt
Angle, and first cross bar and the intermediate connecting rod are 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, the lower link to it is described vertically
The inner side of plane simultaneously extends downwards, and the other end of the lower link is connected to the right side of second cross bar by the 3rd segmental arc
End, so that second cross bar is arranged in the inner side of the perpendicular；
Wherein, second segmental arc and the 3rd segmental arc are lateral bend to the left, so that first cross bar and institute
State the left side that the second cross bar is arranged in the intermediate connecting rod.
2. push rod as claimed in claim 1, it is characterised in that the lower end tangent line and horizontal line angulation of the intermediate connecting rod
For 18 °, the intermediate connecting rod is to be connected by the straightway being connected 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, it is characterised in that the intermediate connecting rod is in the second cross bar place horizontal plane
On projected length more than second cross bar length.
4. push rod as claimed in claim 3, it is characterised in that the extension line of first cross bar is upper with the intermediate connecting rod
End tangent line angulation is 130 °, and the extension line of the lower link is relative to the perpendicular into 120 °.
5. push rod as claimed in claim 4, it is characterised 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 any one of claim 2 to 5, it is characterised in that second cross bar is to the perpendicular
Distance be 150mm, the distance between first cross bar to the second cross bar place horizontal plane is 380mm, described the
The length of two cross bars is 300mm.
7. push rod as claimed in claim 6, it is characterised in that the left end of first cross bar is connected with a side door linkage section.
8. a kind of test chamber side door device, it is characterised in that include：
Side door frame, which has gap between ground；
Cover plate, its side are articulated in the ground, and opposite side is overlapped on the side door frame, so as to close the gap；
Side door, its by can relatively the side door frame translate in the way of be arranged on the left side of the side door frame；
Push rod as any one of claim 1 to 7, the left end of the first cross bar are connected to the front end face of the side door, the
The left end of two cross bars is connected to the right flank 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
The lower section that the second turning that the 3rd segmental arc formed is inserted into the cover plate is stated, the cover plate is propped up by the intermediate connecting rod
Support is gradually opened, then is supported by the first turning for being formed by first segmental arc, until the side door is moved completely
To the gap, the side door closes the side door frame, and the cover plate support is on first cross bar；
When the side door to the side door frame away from direction translate when, first cross bar and first turning take off successively
From the cover plate, the cover plate is subject to the support of the intermediate connecting rod to be gradually reduced, and second turning also departs from described afterwards
Cover plate, 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 plate is 270mm, and the height of first cross bar to ground place horizontal plane 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 true CN106525382A (en) | 2017-03-22 |
| CN106525382B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109612677A (en) * | 2018-12-13 | 2019-04-12 | 北京航天益森风洞工程技术有限公司 | A kind of tuyere replacement device of automotive environment wind-tunnel |
| CN114441132A (en) * | 2022-04-08 | 2022-05-06 | 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612677A (en) * | 2018-12-13 | 2019-04-12 | 北京航天益森风洞工程技术有限公司 | A kind of tuyere replacement device of automotive environment wind-tunnel |
| 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 |
| CN114441132A (en) * | 2022-04-08 | 2022-05-06 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106525382B (en) | 2018-09-14 |
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