CN106240805A - A kind of depopulated helicopter carbon fiber landing gear - Google Patents
A kind of depopulated helicopter carbon fiber landing gear Download PDFInfo
- Publication number
- CN106240805A CN106240805A CN201610679425.9A CN201610679425A CN106240805A CN 106240805 A CN106240805 A CN 106240805A CN 201610679425 A CN201610679425 A CN 201610679425A CN 106240805 A CN106240805 A CN 106240805A
- Authority
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- China
- Prior art keywords
- carbon fiber
- sliding
- depopulated helicopter
- rectangular
- way connector
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C2025/325—Alighting gear characterised by elements which contact the ground or similar surface specially adapted for helicopters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention belongs to depopulated helicopter technical field, specifically a kind of depopulated helicopter carbon fiber landing gear.Including depopulated helicopter support and mounting platform, cushion pad A, fixed by installing hole；Carbon fiber crossbeam, carbon fiber crossbeam R, carbon fiber support column are Integral rectangular pipes；With rectangle cushion block, buffer gasket B in the rectangular tube loading carbon fiber three-way connector Upper rectangular pipe of carbon fiber support column lower end, fix buffer shaft；Carbon fiber is slided in sticking up loading carbon fiber adapter bottom fluting pipe and is fixed by rivet with bottom platform cushion pad C；The method have the advantages that: carbon fiber undercarriage is lighter by 50% than aluminium alloy undercarriage, decrease aluminium alloy undercarriage 0.8kg rustless steel buffering assembly, add unmanned helicopter-mounted weight and flyer miles；Tri-grades of buffer units of carbon fiber undercarriage A, B, C protect instrument and equipment；Carbon fiber landing gear is not only light but also the most tough add the depopulated helicopter O&M time and decreases hidden danger and O&M cost.
Description
Technical field
The invention belongs to depopulated helicopter technical field, specifically a kind of depopulated helicopter carbon fiber landing gear.
Background technology
At present, the cunning of depopulated helicopter undercarriage is stuck up, crossbeam, support column use aluminium alloy extrusions welding and standard component to connect
Assemble, the aluminium alloy undercarriage of depopulated helicopter be hit in takeoff and landing frequently impact can flexural deformation, make
Shorter with the time；If the thickness thickening aluminium alloy extrusions can cause depopulated helicopter overweight；Depopulated helicopter aluminium alloy rises and falls
Frame must install the first-level buffer assembly instrument and equipment with protection unmanned plane on crossbeam, and the rustless steel buffering assembly of 0.8KG increases
Add manufacturing cost and add the weight of unmanned plane undercarriage the most simultaneously；The overweight direct shadow of depopulated helicopter aluminium alloy undercarriage
Ringing to unmanned helicopter-mounted weight and flyer miles, the parts of present depopulated helicopter reduce weight gram to calculate,
The aluminium alloy undercarriage of depopulated helicopter should alleviate weight, and reaching again to use intensity and service life is critically important difficulty
Topic；Aluminium alloy undercarriage is easy to damage by the structure influence that welding and standard component connect, and needs integral replacing to increase after damage
Depopulated helicopter O&M maintenance cost, the quality of the undercarriage of depopulated helicopter directly influences the use of depopulated helicopter
And damage；Wish to change the defect during above aluminium alloy undercarriage uses and problem according to depopulated helicopter industry survey, it is desirable to
The undercarriage of depopulated helicopter use intensity and under the conditions of service life the lightest more good, to increase in the flight of depopulated helicopter
Journey and increase unmanned helicopter-mounted weight, multi-buffer device to be had sets preferably protecting the instrument of depopulated helicopter
Standby.
Summary of the invention
The invention aims to solve above depopulated helicopter aluminium alloy undercarriage shortcoming and problem, invention is a kind of unmanned
Helicopter carbon fiber landing gear, the support of depopulated helicopter and carbon fiber mounting platform, cushion pad A, carbon fiber crossbeam are used
Stainless steel standard part is fixed by installing hole.
On carbon fiber mounting platform, plane has cushion pad anchor frame and installing hole, fixing below carbon fiber mounting platform
Position and carbon fiber crossbeam rectangular tube profile three is close joins, carbon fiber mounting platform uses carbon fiber-reinforced resin raw material to make recruitment
After die-filling tool one-shot forming, carbon fiber mounting platform and carbon fiber crossbeam epoxy resin reinforcing in side with stainless steel rivet even
Connect fixing.
Carbon fiber crossbeam, carbon fiber crossbeam R, carbon fiber support column are the overall slim rectangular tubes of carbon, carbon fiber rectangular tube
Four corners position has R excessive, the overall global shape of carbon fiber crossbeam, carbon fiber crossbeam R, carbon fiber support column use carbon fiber,
Aramid fiber, epoxy resin utilize moulds of industrial equipment Compound Machining molding.
The top of carbon fiber three-way connector is rectangular tube, and the bottom of carbon fiber three-way connector is fluting pipe, top
Rectangular tubular and fluting pipe intersection, bottom before and after have 30 °, a T-shaped reinforcement of 40 °, sliding stick up direction single sided taper 14 °
Improving cushion effect before and after depopulated helicopter takeoff and landing, left and right directions single sided taper 7 ° improves about depopulated helicopter flat
Weighing apparatus, carbon fiber three-way connector uses carbon fiber-reinforced resin raw material to assemble after using moulds of industrial equipment one-shot forming parts.
In below carbon fiber support column, rectangular tube external diameter loads the rectangular tube internal diameter on carbon fiber three-way connector top, carbon is fine
Having cushioned rectangular cushion block, cushioned rectangular packing ring B to be fixed by buffer shaft in dimension three-way connector Upper rectangular pipe, buffer shaft is slow
Moved up and down by the cushion effect of depopulated helicopter in jet-bedding.
Sliding the sticking up of carbon fiber is carbon fiber pipe, and carbon fiber is sliding to be stuck up pipe two R and tilt upward, the external diameter assembling of carbon fiber pipe
Use stainless with the cushion pad C of adapter bottom platform in entering carbon fiber three-way connector bottom fluting carbon fiber round tube inside diameter
Steel rivet 19 is fixed, and carbon fiber three-way connector 7 bottom platform has opening locking slot, and carbon fiber is slided to stick up and slide and stuck up two upwards R
Shape uses carbon fiber, aramid fiber, epoxy resin by moulds of industrial equipment entirety Compound Machining molding.
The cushion pad A of carbon fiber mounting platform, the cushioned rectangular packing ring B in carbon fiber three-way connector Upper rectangular pipe,
The cushion pad C of carbon fiber three-way connector bottom platform connects fixing by stainless steel rivet, and depopulated helicopter carbon fiber rises and falls
Frame has tri-grades of buffer units of A, B, C.
Carbon fiber is sliding to be stuck up pipe external diameter and loads in the fluting circle internal diameter of carbon fiber three-way connector bottom that carbon fiber is sliding sticks up pipe
Two R installs pipe plug to upper top, and carbon fiber is sliding to be stuck up the anterior R part of pipe and install and sliding stick up axle fixing device, sliding stick up
Axle fixing device is installed and sliding is stuck up roller shaft, stick up roller shaft two and sliding stick up wheel assembly and connection.
The invention has the beneficial effects as follows；Depopulated helicopter carbon fiber undercarriage is through Headquarters of PLA General Staff 60
Institute base camp and indoor test detection of platform performance data are good；Depopulated helicopter carbon fiber undercarriage only has aluminium alloy to rise and fall
Frame 50% weight, lightweight adds unmanned helicopter-mounted weight and flyer miles；Carbon fiber undercarriage intensity is aluminium alloy
Undercarriage two dual intensity, intensity increases depopulated helicopter undercarriage service life；Carbon fiber undercarriage subtracts than aluminium alloy undercarriage
Having lacked manufacturing cost and the 0.8kg weight of the first-level buffer assembly that four rustless steels manufacture, carbon fiber undercarriage has A, B, C tri-
Level buffering effect, more preferably protects the safety of depopulated helicopter instrument and equipment；Carbon fiber landing gear is the lightest but also the most tough, increases
Depopulated helicopter O&M time reduces hidden danger and O&M cost.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of depopulated helicopter carbon fiber landing gear
In figure 1, carbon fiber mounting platform；2, cushion pad A；3, installing hole；4, carbon fiber crossbeam；5, carbon fiber crossbeam R；
6, carbon fiber support column；7, carbon fiber three-way connector；8, dashpot；9, buffer shaft；10, cushioned rectangular cushion block；11, buffering square
Shape packing ring B；12, carbon fiber is sliding sticks up；13, cunning sticks up pipe plug；14, cunning sticks up wheel fixing device；15 cunnings stick up wheel shaft；16, cunning sticks up wheel；
17, cushion pad C；18, T-shaped reinforcement；19, stainless steel rivet；20, carbon fiber rectangular tube；21, carbon fiber pipe；22, frock
Mould
Detailed description of the invention
1 one kinds of depopulated helicopter carbon fiber landing gears referring to the drawings, pacify including depopulated helicopter support and carbon fiber
Dress platform 1, cushion pad A2, carbon fiber crossbeam 4 standard component connects fixing by installing hole 3, and on carbon fiber mounting platform 1, plane has
The anchor frame of cushion pad A2 and installing hole 3, three weeks fixed positions of carbon fiber mounting platform 1 and carbon fiber crossbeam 4 rectangular tube
Profile three axle is close joins, and carbon fiber mounting platform 1 uses carbon fiber-reinforced resin raw material by moulds of industrial equipment 22 one-shot forming zero
After using epoxy resin fixing with carbon fiber crossbeam after part, stainless steel rivet 18 is used to assemble in side.
Described carbon fiber crossbeam 4, carbon fiber crossbeam R5, carbon fiber support column 6 are overall carbon fiber rectangular tubes 20, and carbon is fine
The four corners position of dimension rectangular tube 20 has R excessive, carbon fiber crossbeam 4, carbon fiber crossbeam R5, the shape of carbon fiber support column 6 entirety
With carbon fiber, aramid fiber, epoxy resin by moulds of industrial equipment 22 Compound Machining global formation.
Carbon fiber rectangular tube 20 external diameter of described carbon fiber support column 6 bottom is fitted into carbon fiber three-way connector 7
In carbon fiber rectangular tube 20 internal diameter of top, in carbon fiber rectangular tube 20 internal diameter, there are cushioned rectangular cushion block 10, cushioned rectangular packing ring 11B
Being fixed by buffer shaft 9, buffer shaft 9 is moved up and down by the size of depopulated helicopter cushion effect in dashpot 8.
It is carbon fiber pipe 21 that described carbon fiber cunning sticks up 12, and carbon fiber pipe 21 external diameter is fitted into carbon fiber three and leads to
Use stainless steel rivet 19 solid with the cushion pad C17 of adapter bottom platform in connecing device bottom fluting carbon fiber pipe 21 internal diameter
Fixed, carbon fiber three-way connector 7 bottom platform has opening locking slot.
The cushion pad A2 of described carbon fiber mounting platform 1 and the carbon fiber rectangular tube on carbon fiber three-way connector 7 top
Cushioned rectangular packing ring B11 in the 20 and cushion pad C17 bottom carbon fiber three-way connector 7, carbon fiber undercarriage has A, B, C
Three grades of buffer units.
Described carbon fiber is sliding, and to stick up 12 be carbon fiber pipe 21, and carbon fiber is sliding to be stuck up 12 two radius R and tilt upward shape, and carbon is fine
Dimension is sliding sticks up 12 pipes and sliding two radius R shape of tilting upward of sticking up uses carbon fiber, aramid fiber epoxy resin to utilize moulds of industrial equipment 22 multiple
Close machine-shaping.
Described carbon fiber three-way connector 7 top is carbon fiber rectangular tube 19, and carbon fiber three-way connector 7 bottom is out
Groove carbon fiber round tube 20, rectangular tube 19 and the fluting both sides, carbon fiber round tube 20 intersection of carbon fiber three-way connector 7 have
30 °, the T-shaped reinforcement of 40 °, T-shaped reinforcement 18 increases carbon fiber support column 6 and carbon fiber slides the bonding strength sticking up 12,
Carbon fiber three-way connector 7 uses carbon fiber-reinforced resin raw material to use moulds of industrial equipment 22 one-shot forming.
Sliding 12 front radius R of sticking up of described carbon fiber are tilted upward in place's internal diameter, use carbon fiber pipe external diameter to load and carry out
Strengthen, it is ensured that during unmanned plane landing, the sliding impact sticking up axle fixing device 14 is strong
Described carbon fiber three-way connector 7 and carbon fiber be sliding stick up 12 dresses sliding stick up wheel direction be monolateral slope inwardly 14 °, both sides
Having 30 °, 40 ° of T-shaped reinforcements 18 before and after intersection, width is monolateral slopes inwardly 7 ° to increase carbon fiber support column and carbon
Fiber is sliding sticks up bonding strength.
Cushioned rectangular packing ring B11 in the cushion pad A3 of described carbon fiber mounting platform 1 and carbon fiber three-way connector 7
Use silica gel and polyester raw material by rubber mold molding with the cushion pad C17 bottom carbon fiber three-way connector 7.
Described carbon fiber undercarriage has the buffering in the cushion pad A of mounting platform, three-way connector 7 Upper rectangular pipe
Rectangular gasket B, the cushion pad C of three-way connector bottom platform, depopulated helicopter carbon fiber undercarriage has A, B, C tri-grades buffering
Device.
Described carbon fiber is sliding to be stuck up 12 anterior R and upwards locates to use stainless steel rivet 19 to connect to install and sliding stick up shaft fixing device
14, the sliding fixing sliding wheel shaft 15 that sticks up of wheel fixing device 14 that sticks up, sliding stick up the fixing sliding wheel 16 that sticks up in wheel shaft 15 two, sliding wheel bottom surface of sticking up is higher than slow
Die head C, should raise tail girder rear and may move when depopulated helicopter is to be moved.
Above disclosure describes ultimate principle principal character and the advantage of a kind of depopulated helicopter carbon fiber landing gear,
Without departing under the principle of the invention and scope premise, the present invention also has multiple changes and improvements scheme, these changes and improvements sides
Within case both falls within the interest field of claimed invention.
Claims (10)
1. a depopulated helicopter carbon fiber landing gear, it is characterised in that；Support and carbon fiber including depopulated helicopter
Mounting platform, cushion pad A, carbon fiber crossbeam stainless steel standard part are fixed by installing hole, and carbon fiber mounting platform and carbon are fine
After dimension crossbeam epoxy resin reinforcing, stainless steel rivet is used to connect in side fixing；Carbon fiber crossbeam, carbon fiber crossbeam R, carbon
Fiber support post is overall carbon fiber rectangular tube；Carbon fiber three-way connector top is carbon fiber rectangular tube, and carbon fiber three leads to
Connecing device bottom carbon fiber pipe, carbon fiber rectangular tube and carbon fiber pipe intersection and have T-shaped reinforcement, carbon fiber threeway connects
The platform of fixing cushion pad C is had bottom device；Rectangular tube external diameter below carbon fiber crossbeam support pole loads carbon fiber threeway and connects
In device Upper rectangular bore, cushioned rectangular cushion block, cushioned rectangular packing ring B in Upper rectangular pipe, is had to be fixed by buffer shaft, slow
Rush axle to be moved up and down by the size of depopulated helicopter cushion effect in dashpot；The otch of carbon fiber three-way connector bottom
Carbon fiber pipe in load that carbon fiber is sliding to be stuck up, there are fixed platform and cushion pad C in the bottom surface of carbon fiber three-way connector by not
Rust steel rivet connects fixing；Carbon fiber undercarriage has tri-grades of buffer structure devices of A, B, C；The sliding R that sticks up of carbon fiber pacifies to upper top
The sliding pipe plug that sticks up of dress, the sliding radius R sticking up front portion of carbon fiber tilt upward middle part install sliding stick up shaft fixing device, sliding stick up wheel shaft,
Slide and stick up wheel.
2. according to a kind of depopulated helicopter carbon fiber landing gear described in claims 1, it is characterised in that: mounting platform
Upper plane has cushion pad A anchor frame and installing hole, below mounting platform outside three weeks fixed positions and carbon fiber crossbeam rectangular tube
Shape three is close joins, after carbon fiber mounting platform uses carbon fiber-reinforced resin raw material to use moulds of industrial equipment one-shot forming, and carbon fiber
Crossbeam is fixed with stainless steel rivet in side after using epoxy resin reinforcing again.
3. according to a kind of depopulated helicopter carbon fiber landing gear described in claims 1, it is characterised in that: carbon fiber is horizontal
Beam, carbon fiber crossbeam R, carbon fiber support column are carbon fiber Integral rectangular pipes, and the corner of carbon fiber rectangular tube has R excessive；Carbon is fine
Dimension crossbeam, carbon fiber crossbeam R, carbon fiber support column be the shape of Integral rectangular pipe be to pass through with carbon fiber, aramid fiber, epoxy resin
Moulds of industrial equipment entirety Compound Machining molding.
4. according to a kind of depopulated helicopter carbon fiber landing gear described in claims 1, it is characterised in that: carbon fiber three
Connectors top is carbon fiber rectangular tube, and carbon fiber three-way connector bottom is carbon fiber round tube, and carbon fiber threeway connects
There is fixing cushion pad C platform device bottom surface, and carbon fiber round tube and platform have out binding groove, the rectangular tube of carbon fiber three-way connector
Having 30 °, the T-shaped reinforcement of 40 ° with both sides, carbon fiber round tube intersection, to increase, carbon fiber support column and carbon fiber are sliding to be stuck up
Bonding strength, carbon fiber three-way connector uses carbon fiber-reinforced resin raw material to use moulds of industrial equipment one-shot forming.
A kind of depopulated helicopter carbon fiber landing gear the most according to claim 1, it is characterised in that: carbon fiber threeway
The carbon fiber rectangular tube on the top of adapter and the fluting carbon fiber round tube intersection of bottom, carbon fiber is sliding sticks up length radius R
Direction carbon shape fiber quarter bend of tilting upward slopes inwardly 14 ° front and back has 30 °, 40 ° of T-shaped reinforcements, inside at another width
Tilting 7 °, the T-shaped reinforcement tilting 14 ° of directions is slided stick up bonding strength to be increased carbon fiber support column and carbon fiber.
6. according to a kind of depopulated helicopter carbon fiber landing gear described in claims 1, it is characterised in that: carbon fiber props up
The rectangular tube external diameter of dagger bottom loads in the rectangular tube internal diameter on carbon fiber three-way connector top, has buffering in rectangular tube internal diameter
Rectangle cushion block, cushioned rectangular packing ring B are fixed by buffer shaft, buffer shaft in dashpot by depopulated helicopter cushion effect size
Move up and down；The sliding pipe external diameter that sticks up of carbon fiber loads in the carbon fiber round tube inside diameter of carbon fiber three-way connector bottom, carbon fiber three
The cushion pad C of the bottom platform of connectors uses stainless steel rivet to fix, and has the pre-of locking bottom carbon fiber three-way connector
Stay gap.
7. according to a kind of depopulated helicopter carbon fiber landing gear described in claims 1, it is characterised in that: carbon fiber is sliding
Sticking up is carbon fiber pipe, and the sliding two tip-tilted shape of radius R of sticking up of carbon fiber is to use carbon fiber, aramid fiber, epoxy resin to utilize
Moulds of industrial equipment Compound Machining molding.
8. according to a kind of depopulated helicopter carbon fiber landing gear described in claims 1, it is characterised in that: carbon fiber rises
The frame that falls has at the bottom of the cushioned rectangular packing ring B in the cushion pad A of mounting platform, three-way connector Upper rectangular pipe, three-way connector
The cushion pad C of portion's platform, depopulated helicopter carbon fiber landing gear forms tri-grades of buffer units of A, B, C.
A kind of depopulated helicopter carbon fiber landing gear the most according to claim 1, it is characterised in that: carbon fiber is sliding to be stuck up
Connect with stainless steel rivet at anterior R and sliding wheel fixing device of sticking up is installed, the sliding fixing sliding wheel shaft that sticks up of wheel fixing device that sticks up, sliding sticks up wheel shaft
The fixing sliding wheel that sticks up in two, tail master, higher than cushion pad C plane, should be raised in sliding wheel diameter bottom surface of sticking up when unmanned plane helicopter is to be moved
Beam makes sliding to stick up inclination and fall through and sliding stick up unmanned plane helicopter after wheel lands and can move.
A kind of depopulated helicopter carbon fiber landing gear the most according to claim 1, it is characterised in that: mounting platform
A cushion pad and carbon fiber three-way connector Upper rectangular pipe in cushioned rectangular packing ring B and carbon fiber three-way connector bottom
Cushion pad C use silica gel and polyester raw material to use rubber mold molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610679425.9A CN106240805B (en) | 2016-08-18 | 2016-08-18 | A kind of unmanned helicopter carbon fiber landing gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610679425.9A CN106240805B (en) | 2016-08-18 | 2016-08-18 | A kind of unmanned helicopter carbon fiber landing gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106240805A true CN106240805A (en) | 2016-12-21 |
| CN106240805B CN106240805B (en) | 2019-07-12 |
Family
ID=57592196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610679425.9A Expired - Fee Related CN106240805B (en) | 2016-08-18 | 2016-08-18 | A kind of unmanned helicopter carbon fiber landing gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106240805B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107323654A (en) * | 2017-07-17 | 2017-11-07 | 飞瑞航空科技（江苏）有限公司 | A kind of plant protection unmanned plane undercarriage |
| CN109888691A (en) * | 2019-02-28 | 2019-06-14 | 顺丰科技有限公司 | A kind of connecton layout and unmanned plane for unmanned plane |
| CN110770122A (en) * | 2017-07-31 | 2020-02-07 | 株式会社斯巴鲁 | Landing device for rotorcraft |
| CN111572767A (en) * | 2020-05-26 | 2020-08-25 | 黄河水利委员会黄河水利科学研究院 | River situation remote sensing monitoring devices based on unmanned aerial vehicle |
| CN113212739A (en) * | 2021-05-18 | 2021-08-06 | 浙江鸿鹄翼航空科技有限公司 | Small aircraft landing gear and machining method thereof |
| WO2023272445A1 (en) * | 2021-06-28 | 2023-01-05 | 深圳市大疆创新科技有限公司 | Frame, stand, and unmanned aerial vehicle |
| CN116101482A (en) * | 2023-04-17 | 2023-05-12 | 成都沃飞天驭科技有限公司 | Aircraft test platform, landing gear thereof and design method of landing gear |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107323654A (en) * | 2017-07-17 | 2017-11-07 | 飞瑞航空科技（江苏）有限公司 | A kind of plant protection unmanned plane undercarriage |
| CN110770122A (en) * | 2017-07-31 | 2020-02-07 | 株式会社斯巴鲁 | Landing device for rotorcraft |
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| CN109888691A (en) * | 2019-02-28 | 2019-06-14 | 顺丰科技有限公司 | A kind of connecton layout and unmanned plane for unmanned plane |
| CN111572767A (en) * | 2020-05-26 | 2020-08-25 | 黄河水利委员会黄河水利科学研究院 | River situation remote sensing monitoring devices based on unmanned aerial vehicle |
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| CN113212739A (en) * | 2021-05-18 | 2021-08-06 | 浙江鸿鹄翼航空科技有限公司 | Small aircraft landing gear and machining method thereof |
| CN113212739B (en) * | 2021-05-18 | 2022-11-25 | 浙江鸿鹄翼航空科技有限公司 | Small aircraft landing gear and machining method thereof |
| WO2023272445A1 (en) * | 2021-06-28 | 2023-01-05 | 深圳市大疆创新科技有限公司 | Frame, stand, and unmanned aerial vehicle |
| CN116101482A (en) * | 2023-04-17 | 2023-05-12 | 成都沃飞天驭科技有限公司 | Aircraft test platform, landing gear thereof and design method of landing gear |
| CN116101482B (en) * | 2023-04-17 | 2023-07-18 | 成都沃飞天驭科技有限公司 | Aircraft test platform, landing gear thereof and design method of landing gear |
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| Publication number | Publication date |
|---|---|
| CN106240805B (en) | 2019-07-12 |
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