CN203719872U - Special axis angle adjustable lifting mechanism for wind tunnel - Google Patents
Special axis angle adjustable lifting mechanism for wind tunnel Download PDFInfo
- Publication number
- CN203719872U CN203719872U CN201420008477.XU CN201420008477U CN203719872U CN 203719872 U CN203719872 U CN 203719872U CN 201420008477 U CN201420008477 U CN 201420008477U CN 203719872 U CN203719872 U CN 203719872U
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- China
- Prior art keywords
- slide block
- connecting base
- lifter
- axis angle
- wind
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- Expired - Fee Related
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The utility model relates to a special axis angle adjustable lifting mechanism for a wind tunnel. According to a ground icing weather condition simulation system, a mobile icing wind tunnel is adopted, and the axis angle of the wind tunnel is adjustable, and in order to satisfy testing requirements, the special axis angle adjustable lifting mechanism for the wind tunnel should be designed. The special axis angle adjustable lifting mechanism for the wind tunnel comprises a horizontal straight line distance compensation system (1), a front vertical lifting system (2), a back vertical lifting system (3), a guide integral frame (4) and a pitching rotation system (5); the front end and the back end of the guide integral frame are respectively provided with the front vertical lifting system and the back vertical lifting system; and the guide integral frame is provided with the horizontal straight line distance compensation system and the pitching rotation system. The special axis angle adjustable lifting mechanism for the wind tunnel of the utility model is a wind tunnel axis lifting mechanism.
Description
technical field:
the utility model relates to the elevating mechanism of the special-purpose axis angle adjustable of a kind of wind-tunnel.
background technology:
in recent years due to the development of China's aircraft art, China has the novel turbofan secondary-line-aircraft of complete independent intellectual property right gradually, for completing nacelle of airplane anti-icing system Airworthiness Certification, under the ice-formation condition that need to require at CCAR25.1093 (b) (2), complete ground experiment, thereby make up the blank of the icing meteorological condition simulation system in China's nacelle anti-icing system ground.The ground meteorological condition simulation system of freezing adopts portable icing wind tunnel, and icing wind tunnel is that axis angle adjustable meets testing requirements, needs design specially the elevating mechanism of the axis angle adjustable of a set of wind-tunnel special use for this reason.
summary of the invention:
the purpose of this utility model is to provide the elevating mechanism of the special-purpose axis angle adjustable of a kind of wind-tunnel.
above-mentioned object realizes by following technical scheme:
the elevating mechanism of the special-purpose axis angle adjustable of a kind of wind-tunnel, its composition comprises: horizontal linear compensated distance system, front VTOL (vertical take off and landing) system, rear VTOL (vertical take off and landing) system, whole support body and pitch rotation system lead, money VTOL (vertical take off and landing) system and rear VTOL (vertical take off and landing) system are installed respectively in the front and back end of the described whole support body of guiding, on the whole support body of described guiding, described horizontal linear compensated distance system and pitch rotation system are installed.
the elevating mechanism of the described special-purpose axis angle adjustable of wind-tunnel, described horizontal linear compensated distance system also has slide block upper connecting base, the slide block lower connecting base that install successively fromer rail web joint, slide block assembly and described slide block assembly bottom, and described slide block assembly top is installed in linear motion guide; Wherein, described slide block assembly is connected with described slide block upper connecting base by bolt, and the described bolt nut that spins also has spring washer between the slide block assembly described in described nut; Described slide block lower connecting base is connected with integral support assembly by bolt, and the described bolt nut that spins also has spring washer between described nut and described integral support assembly; Described fromer rail web joint is connected with the outer hole wall Connection Block of wind-tunnel.
the elevating mechanism of the described special-purpose axis angle adjustable of wind-tunnel, described front VTOL (vertical take off and landing) system also has front lifter push rod, the upper junction of described lifter push rod connects lifter upper connecting base and plain radial bearing by lifter push rod upper pin, and the lower junction of described front lifter push rod connects front lower rocker bar bearing and plain radial bearing by lifter push rod lower bearing pin; Wherein, described lifter upper connecting base is connected on front lifting frame body, described front lifting frame body connection sliding block lower connecting base.
the elevating mechanism of the described special-purpose axis angle adjustable of wind-tunnel, described rear VTOL (vertical take off and landing) system also comprises rear lifter push rod, hole body Connection Block and plain radial bearing, the upper junction of described lifter push rod is disturbed upper pin and is connected to disappear and disturb device by disappearing, described disappearing disturbed device and by disappearing, disturbed lower bearing pin and be arranged on to disappear and disturb on pedestal; The lower junction of described lifter push rod is connected on rear lifter Connection Block by lifter push rod lower bearing pin; Wherein, described disappearing disturbed pedestal and is connected on rear lifting frame body; Described hole body Connection Block is arranged on described front lifting frame body upper end by a composition cover needle bearing, and described complete needle bearing is arranged in end cap, and described end cap top is arranged on described hole body Connection Block by end-cover axle.
the elevating mechanism of the described special-purpose axis angle adjustable of wind-tunnel, the whole support body of described guiding also has integral support assembly, and the pinch roller assembly being bolted on described integral support assembly, logical pinch roller, pinch roller pin and the roller bearing of comprising of described pinch roller assembly; Wherein, described pinch roller pin, through after described pinch roller, is installed described roller bearing at its two ends.
the elevating mechanism of the described special-purpose axis angle adjustable of wind-tunnel, lower connecting base assembly and rear end cap after described pitch rotation system also comprises rear end cap key seat and is arranged on successively two of described rear end cap key seat one side, between described rear lower connecting base assembly, there is rear upper connecting base assembly, described rear upper connecting base assembly upper end is arranged on described body Connection Block bottom, hole by bolt, the described bolt nut that also spins, has spring washer between described nut and described hole body Connection Block; Described body Connection Block top, hole also has by one group of bolted cover plate, and the described bolt nut that spins, also has spring washer between described nut and described cover plate.
the elevating mechanism of the described special-purpose axis angle adjustable of wind-tunnel, the seat end of described horizontal linear compensated distance system, is connected with wind-tunnel, described slide block assembly is connected with described slide block upper connecting base, described slide block upper connecting base is connected with described front VTOL (vertical take off and landing) system, and does vertically and move along the front guide frame of the whole support body of described guiding.
the elevating mechanism of the described special-purpose axis angle adjustable of wind-tunnel, described slide block assembly is connected with described slide block upper connecting base, described slide block upper connecting base is connected with described rear VTOL (vertical take off and landing) system, and does vertically and move along the rear guide frame of the whole support body of described guiding.
the elevating mechanism of the described special-purpose axis angle adjustable of wind-tunnel, the front lifter push rod being connected with described front lower rocker bar bearing, lifter Connection Block before promoting, described front lifter Connection Block connects described front lifting frame body, and described front lifting frame body connects described slide block lower connecting base.
the beneficial effects of the utility model:
1. the utility model design is by horizontal linear compensated distance system, front VTOL (vertical take off and landing) system, rear VTOL (vertical take off and landing) system, whole support body and the pitch rotation system of leading forms a whole, current, when rear VTOL (vertical take off and landing) system adjustable height is inconsistent, the linear slider slide block that horizontal linear compensated distance system has can make up the variation that is changed the air line distance of bringing by angle, finally realize the adjustable of axis angle, combine the strong point of VTOL (vertical take off and landing) system and varied angle system, except thering are two independently VTOL (vertical take off and landing) system, also there is axis angle adjustable system, make this equipment there is wind-tunnel lifting widely and angle changing capability.This equipment of the present invention provides in the time of can making wind tunnel experiment outside the airflow field that dewaters out of the void, can also provide the flow field of axis variable-angle, to meet widely the requirement of different tests.
the disappearing of the utility model design disturbed device and can be made up and in project installation, bring alignment error, therefore for assurance system, well move, employing disappears and disturbs device, disappears and disturb pedestal and carry out disappearing of error and disturb, and stuck phenomenon appears in anti-locking system, eliminates axially and the stuck phenomenon of longitudinal direction error appearance.Realization disappears and disturbs the error that device elimination exists due to erection, and straight line compensation system compensates the variation that changes the air line distance of bringing due to angle.
accompanying drawing explanation:
accompanying drawing 1 is the side structure schematic diagram of the utility model integral body.
accompanying drawing 2 is Facad structure schematic diagram of the utility model integral body.
accompanying drawing 3 is structural representations below of the utility model integral body.
in figure, 1. horizontal linear compensated distance system; 2. front VTOL (vertical take off and landing) system; 3. rear VTOL (vertical take off and landing) system; 4. whole support body leads; 5. pitch rotation system; 6. pinch roller assembly; 7. fromer rail web joint; 8. front lower rocker bar bearing; 9. bolt; 10. pinch roller; 11. pinch roller pins; 12. roller bearings; 13. pinch roller pedestals; 14. slide block lower connecting bases; 15. nuts; 16. packing rings; 17. bolts; 18. bolts; 19. nuts; 20. packing rings; 21. bolts; 22. slide block upper connecting bases; 23. bolts; 24. nuts; 25. spring washers; 26. slide block assemblies; 27. linear motion guides; 28. integral support assemblies; 29. disappear disturbs device; 30. disappear disturbs upper pin; 31. disappear disturbs lower bearing pin; 32. disappear disturbs pedestal; 33. hole body Connection Blocks; 34. end caps; 35. end-cover axle; 36. front lifter Connection Blocks; 37. front lifter push rods; 38. lifter push rod upper pins; The complete needle bearing of 39. NA4907; 40. front lifting frame bodies; 41. rear lifter push rods; 42. bolts; 43. nuts; 44. spring washers; 45. lifter push rod lower bearing pins; 46. bolts; 47. nuts; 48. spring washers; 49. bolts; 50. nuts; 51. spring washers; 52. rear upper connecting base assemblies; 53. rear end cap bearing pins; 54. rear end caps; 55. rear lower connecting base assemblies; 56. rear lifting frame bodies; 57. rear lifter Connection Blocks.
embodiment:
embodiment 1:
the elevating mechanism of the special-purpose axis angle adjustable of a kind of wind-tunnel, its composition comprises: horizontal linear compensated distance system 1, front VTOL (vertical take off and landing) system 2, rear VTOL (vertical take off and landing) system 3, whole support body 4 and pitch rotation system 5 lead, money VTOL (vertical take off and landing) system and rear VTOL (vertical take off and landing) system are installed respectively in the front and back end of the described whole support body of guiding, on the whole support body of described guiding, described horizontal linear compensated distance system and pitch rotation system are installed.
embodiment 2:
according to the elevating mechanism of the special-purpose axis angle adjustable of the wind-tunnel described in embodiment 1, described horizontal linear compensated distance system also has slide block upper connecting base 22, the slide block lower connecting base 14 that install successively fromer rail web joint 7, slide block assembly 26 and described slide block assembly bottom, and described slide block assembly top is installed in linear motion guide 27; Wherein, described slide block assembly is connected with described slide block upper connecting base by bolt 23, and the described bolt nut 24 that spins also has spring washer 25 between the slide block assembly described in described nut; Described slide block lower connecting base is connected with described integral support assembly 28 by bolt 17, and the described bolt nut 15 that spins also has spring washer 16 between described nut and described integral support assembly; Described fromer rail web joint 7 is connected with the outer hole wall Connection Block of wind-tunnel.
embodiment 3:
according to the elevating mechanism of the special-purpose axis angle adjustable of the wind-tunnel described in embodiment 1 or 2, described front VTOL (vertical take off and landing) system also has front lifter push rod 37, the upper junction of described lifter push rod connects lifter upper connecting base 36 and plain radial bearing by lifter push rod upper pin 38, and the lower junction of described front lifter push rod 37 connects front lower rocker bar bearing 8 and plain radial bearing by lifter push rod lower bearing pin 45; Wherein, described lifter upper connecting base 36 is connected on front lifting frame body 40, described front lifting frame body 40 connection sliding block lower connecting bases 14.
embodiment 4:
according to the elevating mechanism of the special-purpose axis angle adjustable of the wind-tunnel described in embodiment 3, described rear VTOL (vertical take off and landing) system also comprises rear lifter push rod 41, hole body Connection Block 33 and plain radial bearing, the upper junction of described lifter push rod 41 is disturbed upper pin 30 and is connected to disappear and disturb device 29 by disappearing, described disappearing disturbed device and by disappearing, disturbed lower bearing pin 31 and be arranged on to disappear and disturb on pedestal 32; The lower junction of described lifter push rod is connected on rear lifter Connection Block 57 by lifter push rod lower bearing pin; Wherein, described disappearing disturbed pedestal and is connected on rear lifting frame body 56; Described hole body Connection Block 33 is arranged on described front lifting frame body upper end by a composition cover needle bearing 39, and described complete needle bearing is arranged in end cap 34, and described end cap top is arranged on described hole body Connection Block by end-cover axle 35.
embodiment 5:
according to the elevating mechanism of the special-purpose axis angle adjustable of the wind-tunnel described in embodiment 1 or 2, the whole support body of described guiding also has integral support assembly 28, and on described integral support assembly, passing through the fixing pinch roller assembly 6 of bolt 9, described pinch roller assembly leads to and comprises pinch roller 10, pinch roller pin 11 and roller bearing 12; Wherein, described pinch roller pin, through after described pinch roller, is installed described roller bearing at its two ends.
embodiment 6:
according to the elevating mechanism of the special-purpose axis angle adjustable of the wind-tunnel described in embodiment 4, lower connecting base assembly 55 and rear end cap 54 after described pitch rotation system also comprises rear end cap key seat 53 and is arranged on successively two of described rear end cap key seat one side, between described rear lower connecting base assembly, there is rear upper connecting base assembly 52, described rear upper connecting base assembly upper end is arranged on described body Connection Block bottom, hole by bolt 49, the described bolt nut 50 that also spins, has spring washer 51 between described nut and described hole body Connection Block; Described body Connection Block top, hole also has the cover plate connecting by one group of bolt 46, and the described bolt nut 47 that spins, also has spring washer 48 between described nut and described cover plate.
embodiment 7:
according to the elevating mechanism of the special-purpose axis angle adjustable of the wind-tunnel described in embodiment 2, the seat end of described horizontal linear compensated distance system, is connected with wind-tunnel, described slide block assembly is connected with described slide block upper connecting base, described slide block upper connecting base is connected with described front VTOL (vertical take off and landing) system, and does vertically and move along the front guide frame of the whole support body of described guiding.
embodiment 8:
according to the elevating mechanism of the special-purpose axis angle adjustable of the wind-tunnel described in embodiment 2, described slide block assembly is connected with described slide block upper connecting base, described slide block upper connecting base is connected with described rear VTOL (vertical take off and landing) system, and does vertically and move along the rear guide frame of the whole support body of described guiding.
embodiment 9:
according to the elevating mechanism of the special-purpose axis angle adjustable of the wind-tunnel described in embodiment 4, device is disturbed in described disappearing can eliminate the error by workman installs and mismachining tolerance causes.
embodiment 10:
according to the elevating mechanism of the special-purpose axis angle adjustable of the wind-tunnel described in embodiment 3, the front lifter push rod 37 being connected with described front lower rocker bar bearing 8, lifter Connection Block 36 before promoting, described front lifter Connection Block 36 connects described front lifting frame body 40, and described front lifting frame body 40 connects described slide block lower connecting base 14.
embodiment:
when front and back jacking system adjustable height is inconsistent, VTOL (vertical take off and landing) up and down along with front VTOL (vertical take off and landing) system 2, slide block assembly 26 is before described linear motion guide 27, thereby after move and make up the variation that is changed the air line distance bring by angle, for guaranteeing that front lifting frame body 40 and rear lifting frame body 56 are along with lifter vertical up-or-down movement, can be by the snap-in force of totally two ten four pinch rollers 10 of tightening before and after intensity adjustment of bolt 9, larger to described bolt reinforcing, it is tighter that front lifting frame body 40 described in 10 pairs of described pinch rollers is pressed, the vertically motion that described front lifting frame body 40 is more stable.
the front lifter Connection Block 36 of guaranteeing system lifter is arranged on described front lifting frame body 40, lifter Connection Block 36 before front lifter push rod 37 connects, and described front lifter push rod 37 adopt can self-locking power nurse Tyke spiral handspike, front list moves surely, the power that provides angle to change for whole jacking system by lifter push rod.Maximum thrust by ten tons of lifter push rods is front lifting frame body transferring power.
owing to may bring alignment error in project installation, therefore for assurance system, well move, adopting disappears disturbs device 29 and disturbs pedestal 32 and carry out disappearing of error and disturb with disappearing, and there is stuck phenomenon in anti-locking system.The described upper junction of disturbing device 29 that disappears adopts spherical hinge connected mode to adapt to various variations, pedestal 32 is disturbed in described the disappear lower junction of disturbing device 29 and described disappearing can swing after being connected, and described disappearing disturb pedestal 32 can left-right rotation, can eliminate so axially and the stuck phenomenon of longitudinal direction error appearance.And by described disappearing, disturb device 29 and eliminate the error existing due to erection, by horizontal linear compensated distance system, compensate the variation that changes the air line distance of bringing due to angle.
the transmission process of front VTOL (vertical take off and landing) system is: lifter Connection Block 36 before the front lifter push rod 37 being connected with front lower rocker bar bearing 8 promotes, thereby described front lifter Connection Block 36 be connected with described front lifting frame body 40 drive before lifting frame body 40 move up and down, slide block lower connecting base 14 connects motion with described front lifting frame body 40, and slide block upper connecting base 22 connects motion with described slide block lower connecting base 14 by bearing pin.
the transmission process of described rear VTOL (vertical take off and landing) system is: rear lifter push rod 41 promotes coupled disappearing and disturbs device 29, described disappearing disturbed device 29 and driven coupled disappearing to disturb pedestal 32, and described disappearing disturbed pedestal 32 and driven connected rear lifting frame body 56 vertical movements.
Claims (9)
1.
the elevating mechanism of the special-purpose axis angle adjustable of a kind of wind-tunnel, its composition comprises: horizontal linear compensated distance system, front VTOL (vertical take off and landing) system, rear VTOL (vertical take off and landing) system, whole support body and pitch rotation system lead, it is characterized in that: money VTOL (vertical take off and landing) system and rear VTOL (vertical take off and landing) system are installed respectively in the front and back end of the described whole support body of guiding, on the whole support body of described guiding, described horizontal linear compensated distance system and pitch rotation system are installed.
2.
the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 1, it is characterized in that: described horizontal linear compensated distance system also has slide block upper connecting base, the slide block lower connecting base that install successively fromer rail web joint, slide block assembly and described slide block assembly bottom, and described slide block assembly top is installed in linear motion guide; Wherein, described slide block assembly is connected with described slide block upper connecting base by bolt, and the described bolt nut that spins also has spring washer between the slide block assembly described in described nut; Described slide block lower connecting base is connected with integral support assembly by bolt, and the described bolt nut that spins also has spring washer between described nut and described integral support assembly; Described fromer rail web joint is connected with the outer hole wall Connection Block of wind-tunnel.
3.
the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 1 and 2, it is characterized in that: described front VTOL (vertical take off and landing) system also has front lifter push rod, the upper junction of described lifter push rod connects lifter upper connecting base and plain radial bearing by lifter push rod upper pin, and the lower junction of described front lifter push rod connects front lower rocker bar bearing and plain radial bearing by lifter push rod lower bearing pin; Wherein, described lifter upper connecting base is connected on front lifting frame body, described front lifting frame body connection sliding block lower connecting base.
4.
the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 3, it is characterized in that: described rear VTOL (vertical take off and landing) system also comprises rear lifter push rod, hole body Connection Block and plain radial bearing, the upper junction of described lifter push rod is disturbed upper pin and is connected to disappear and disturb device by disappearing, described disappearing disturbed device and by disappearing, disturbed lower bearing pin and be arranged on to disappear and disturb on pedestal; The lower junction of described lifter push rod is connected on rear lifter Connection Block by lifter push rod lower bearing pin; Wherein, described disappearing disturbed pedestal and is connected on rear lifting frame body; Described hole body Connection Block is arranged on described front lifting frame body upper end by a composition cover needle bearing, and described complete needle bearing is arranged in end cap, and described end cap top is arranged on described hole body Connection Block by end-cover axle.
5.
the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 1 and 2, it is characterized in that: the whole support body of described guiding also has integral support assembly, and the pinch roller assembly being bolted on described integral support assembly, logical pinch roller, pinch roller pin and the roller bearing of comprising of described pinch roller assembly; Wherein, described pinch roller pin, through after described pinch roller, is installed described roller bearing at its two ends.
6.
the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 4, it is characterized in that: lower connecting base assembly and rear end cap after described pitch rotation system also comprises rear end cap key seat and is arranged on successively two of described rear end cap key seat one side, between described rear lower connecting base assembly, there is rear upper connecting base assembly, described rear upper connecting base assembly upper end is arranged on described body Connection Block bottom, hole by bolt, the described bolt nut that also spins, has spring washer between described nut and described hole body Connection Block; Described body Connection Block top, hole also has by one group of bolted cover plate, and the described bolt nut that spins, also has spring washer between described nut and described cover plate.
7.
the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 2, it is characterized in that: the seat end of described horizontal linear compensated distance system is connected with wind-tunnel, described slide block assembly is connected with described slide block upper connecting base, described slide block upper connecting base is connected with described front VTOL (vertical take off and landing) system, and does vertically and move along the front guide frame of the whole support body of described guiding.
8.
the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 2, it is characterized in that: described slide block assembly is connected with described slide block upper connecting base, described slide block upper connecting base is connected with described rear VTOL (vertical take off and landing) system, and does vertically and move along the rear guide frame of the whole support body of described guiding.
9.
the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 3, it is characterized in that: the front lifter push rod being connected with described front lower rocker bar bearing, lifter Connection Block before promoting, described front lifter Connection Block connects described front lifting frame body, and described front lifting frame body connects described slide block lower connecting base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008477.XU CN203719872U (en) | 2014-01-07 | 2014-01-07 | Special axis angle adjustable lifting mechanism for wind tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008477.XU CN203719872U (en) | 2014-01-07 | 2014-01-07 | Special axis angle adjustable lifting mechanism for wind tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203719872U true CN203719872U (en) | 2014-07-16 |
Family
ID=51159011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420008477.XU Expired - Fee Related CN203719872U (en) | 2014-01-07 | 2014-01-07 | Special axis angle adjustable lifting mechanism for wind tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203719872U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105989940A (en) * | 2014-12-05 | 2016-10-05 | 成都虹腾科技有限公司 | Adjustable guiding device |
| CN109342004A (en) * | 2018-11-08 | 2019-02-15 | 中国科学院寒区旱区环境与工程研究所 | Pedestal and simulation shelter-forest |
| CN112829949A (en) * | 2020-12-25 | 2021-05-25 | 象辑知源（武汉）科技有限公司 | Airplane icing risk monitoring method |
-
2014
- 2014-01-07 CN CN201420008477.XU patent/CN203719872U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105989940A (en) * | 2014-12-05 | 2016-10-05 | 成都虹腾科技有限公司 | Adjustable guiding device |
| CN109342004A (en) * | 2018-11-08 | 2019-02-15 | 中国科学院寒区旱区环境与工程研究所 | Pedestal and simulation shelter-forest |
| CN112829949A (en) * | 2020-12-25 | 2021-05-25 | 象辑知源（武汉）科技有限公司 | Airplane icing risk monitoring method |
| CN112829949B (en) * | 2020-12-25 | 2022-07-26 | 象辑科技股份有限公司 | Aircraft icing risk monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20170107 |