CN114030639A - Helicopter blade clamping and locking device - Google Patents
Helicopter blade clamping and locking device Download PDFInfo
- Publication number
- CN114030639A CN114030639A CN202111382285.6A CN202111382285A CN114030639A CN 114030639 A CN114030639 A CN 114030639A CN 202111382285 A CN202111382285 A CN 202111382285A CN 114030639 A CN114030639 A CN 114030639A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- locking
- shaft
- range
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/50—Handling or transporting aircraft components
Abstract
The invention provides a helicopter blade clamping and locking device, which comprises: the device comprises a pressure plate (1), a supporting plate (2), a J-shaped piece (3), a short connecting rod (4), an adjustable locking rod, a long connecting rod (6), a long shaft (7) and a push rod (8); the pressing plate (1) is rotatably connected to a first rotating shaft (101) on the supporting plate (2); two ends of the adjustable locking rod are rotatably connected with the pressure plate (1) and the first end of the J-shaped piece (3); the second end of the J-shaped piece (3) is rotationally connected with the first end of the short connecting rod (4), and the third end of the J-shaped piece is rotationally connected with the supporting plate (2); the second end of the short connecting rod (4) and the first end of the long connecting rod (6) are rotatably sleeved on the long shaft (7); the second end of the long connecting rod (6) is rotatably connected with the supporting plate (2); the push rod (8) is hinged with the long shaft (7) and is used for pushing the long shaft (7) to move; a bracket for clamping the long shaft (7) is arranged on the supporting plate (2). Realize quick centre gripping locking.
Description
Technical Field
The invention belongs to the field of design of helicopter rotor wing folding devices, and particularly relates to a helicopter blade clamping and locking device.
Background
When the helicopter is loaded and transported on carrying platforms such as ships and warships, large-scale transport planes and the like, the rotor wings of the helicopter need to be folded and fixed, so that the transportation and storage space of the helicopter is reduced, and meanwhile, the damage caused by interference of blades and a loading platform during flapping and shimmy motion in the transportation process is avoided.
However, due to the unique blade airfoil shape and the large inertial load during marine transportation and air transportation, the common universal clamping fixture is difficult to meet the requirement of rapid clamping and locking.
Disclosure of Invention
The invention provides a helicopter blade clamping and locking device, which can realize rapid clamping and locking of a blade when a helicopter is loaded, connection and fixation with a specific interface and rapid release and unlocking of the blade when the helicopter is unloaded so as to meet the technical and tactical index requirements of rapid transfer of the helicopter.
The invention provides a helicopter blade clamping and locking device, which comprises: the device comprises a pressure plate 1, a supporting plate 2, a J-shaped piece 3, a short connecting rod 4, an adjustable locking rod, a long connecting rod 6, a long shaft 7 and a push rod 8;
the pressing plate 1 is rotatably connected to a first rotating shaft 101 on the supporting plate 2, and the pressing plate 1 and the supporting plate 2 are used for clamping a paddle;
the first end of the adjustable locking rod is connected with the pressure plate 1, and the second end of the adjustable locking rod is rotatably connected with the first end of the J-shaped piece 3; the length change of the adjustable locking rod drives the pressing plate 1 to rotate around the first rotating shaft 101;
the second end of the J-shaped piece 3 is rotationally connected with the first end of the short connecting rod 4, and the third end of the J-shaped piece is rotationally connected with the supporting plate 2;
the second end of the short connecting rod 4 and the first end of the long connecting rod 6 are rotatably sleeved on the long shaft 7; the second end of the long connecting rod 6 is rotatably connected with the supporting plate 2;
the push rod 8 is hinged with the long shaft 7 and used for pushing the long shaft 7 to move and adjusting the relative positions of the two ends of the short connecting rod 4 and the second end of the long connecting rod 6;
the supporting plate 2 is provided with a supporting groove for clamping the long shaft 7.
Optionally, the adjustable locking lever comprises: the locking bush 5, the pull rod joint 9, the locking shaft 10 and the adjusting knob 11;
the first end of the locking bush 5 is rotatably connected with the pressure plate 1, and the second end of the locking bush is in threaded connection with the locking shaft 10;
the pull rod joint 9 is sleeved on the locking shaft 10 and is rotatably connected with the first end of the J-shaped piece 3;
the adjusting knob 11 is sleeved on the locking shaft 10 and used for driving the locking shaft 10 to rotate and adjust the degree of the locking shaft 10 extending into the locking bush 5, so that the length of the adjustable locking rod is changed.
Optionally, the horizontal distance La1 between the first rotating shaft 101 and the second rotating shaft 102 is set within a range of 25 mm-30 mm, and the vertical distance La2 between the first rotating shaft 101 and the second rotating shaft 102 is set within a range of 14 mm-16 mm;
the second rotation shaft 102 is a rotation shaft of the first end of the locking bush 5.
Alternatively, the vertical distance Lb1 between the first rotating shaft 101 and the third rotating shaft 103 is set to be in the range of 10mm to 12mm,
the vertical distance Lb2 between the first rotating shaft 101 and the center of the card slot is set within the range of 45 mm-47 mm, the vertical distance Lb3 between the first rotating shaft 101 and the fourth rotating shaft 104 is set within the range of 6 m-8 mm, the horizontal distance Lb4 between the first rotating shaft 101 and the third rotating shaft 103 is set within the range of 56 mm-58 mm, the horizontal distance Lb5 between the third rotating shaft 103 and the fourth rotating shaft 104 is set within the range of 147 mm-149 mm, and the horizontal distance Lb6 between the first rotating shaft 101 and the center of the card slot is set within the range of 62 mm-64 mm;
the third rotating shaft 103 is a rotating shaft of the third end of the J-shaped member 3.
The fourth rotating shaft 104 is a rotating shaft of the second end of the long link 6.
The fifth rotation shaft 105 is a rotation shaft of the first end of the J-shaped member 3.
The sixth rotating shaft 106 is a rotating shaft of the second end of the J-shaped member 3.
Optionally, the radius Rb1 of the slot on the supporting plate 2 is set within the range of 8 mm-10 mm.
Optionally, a vertical distance Lc1 between the third rotating shaft 103 and the fifth rotating shaft 105 of the J-shaped part 3 is set within a range from 72mm to 74mm, a vertical distance Lc2 between the third rotating shaft 103 and the sixth rotating shaft 106 is set within a range from 63mm to 65mm, and a horizontal distance Lc3 between the third rotating shaft 103 and the sixth rotating shaft 106 is set within a range from 18mm to 20 mm.
Optionally, the length of the short connecting rod 4 is set within the range of 50mm to 52 mm.
Optionally, the length of the long connecting rod 6 is set within the range of 146 mm-148 mm.
The invention provides a helicopter blade clamping and locking device, which is characterized in that a double-rocker mechanism and a crank connecting rod mechanism are formed by parts such as an internal connecting rod, a J-shaped piece and the like, so that the function of clamping and then locking a helicopter blade is realized, and the helicopter blade can be clamped quickly, conveniently and laborsavingly. The mechanism effectively improves the integral reliability of the device through a singular point (dead point) and thread double locking mode. In addition, two sets of mechanisms share part of parts, so that the number of parts of the device is greatly reduced, and the maintainability and the economical efficiency of the device are improved.
Drawings
FIG. 1 is a schematic structural view of a helicopter blade clamping and locking device provided by the present invention after locking;
FIG. 2 is a schematic view of a helicopter blade grip locking arrangement according to the present invention shown in the open configuration;
FIG. 3 is a schematic structural view of a helicopter blade clamping and locking device provided in accordance with the present invention;
FIG. 4 is a schematic structural view of a platen according to the present invention;
FIG. 5 is a schematic structural diagram of a pallet provided by the present invention;
FIG. 6 is a schematic structural view of a J-shaped part provided by the invention;
FIG. 7 is a schematic view of a crank linkage provided by the present invention;
FIG. 8 is a schematic view of a dual rocker mechanism provided in the present invention;
1, pressing a plate; 2-a supporting plate; 3-J-shaped part;
4-short connecting rod; 5-locking the bush; 6-long connecting rod;
7-long axis; 8, a push rod; 9-tie rod joint;
10-a locking shaft; 11-adjusting knob 101-first rotating shaft;
102-a second rotating shaft; 103-a third rotating shaft; 104-a fourth rotating shaft;
105-a fifth rotating shaft; 106 — sixth shaft.
Detailed Description
The helicopter blade clamping and locking device provided by the invention is explained in the following by combining the attached drawings.
As shown in fig. 1-3, the present invention provides a helicopter blade clamping and locking device, comprising: the device comprises a pressure plate 1, a supporting plate 2, a J-shaped piece 3, a short connecting rod 4, a locking bush 5, a long connecting rod 6, a long shaft 7, a push rod 8, a pull rod joint 9, a locking shaft 10 and an adjusting knob 11; wherein the content of the first and second substances,
the device can clamp the blade through a pressure plate 1 and a supporting plate 2 and is locked through a structure formed by a J-shaped piece 3, a short connecting rod 4, a locking bush 5, a long connecting rod 6, a long shaft 7, a push rod 8, a pull rod joint 9, a locking shaft 10 and an adjusting knob 11.
The lower part of the supporting plate 2 is provided with a pin shaft hole, and the clamped and locked blade can be fixed at a designated position through the pin shaft hole.
The supporting plate 2, the J-shaped piece 3, the short connecting rod 4 and the long connecting rod 6 are connected through a rotating shaft in sequence to form a double-rocker structure, and a push rod 8 is arranged on a long shaft 7 at the joint of the short connecting rod 4 and the long connecting rod 6 and serves as an operating handle for driving the double-rocker mechanism to move. The double-rocker mechanism is driven to move by pushing the push rod 8 upwards, so that the helicopter blade clamping and locking device can be preliminarily locked.
The locking bush 5, the tie rod joint 9, the locking shaft 10 and the adjusting knob 11 together form an adjustable locking rod, wherein the adjusting knob 11 serves as an operating knob for the locking of the mechanism.
The supporting plate 2, the pressing plate 1, the adjustable locking rod and the J-shaped piece 3 are sequentially connected to form a crank-link mechanism, and the primarily locked helicopter blade clamping and locking device is further locked through the adjusting knob 11.
The pressing plate 1 and the supporting plate 2 can be attached to and clamp the paddle, the attaching surface is consistent with the shape of the profile of the paddle, a chloroprene rubber sheet with the thickness of 3-5 mm is attached to the attaching surface, on one hand, the attaching degree and the clamping pretightening force of the locking device and the paddle are increased through elastic deformation of rubber, and on the other hand, the pressing plate can play a role in buffering when the pressing plate receives inertial load. The lightening holes are additionally arranged on the surface of the rubber, so that the weight is lightened, and meanwhile, the phenomenon that the rubber is difficult to separate from the paddle due to long clamping time is avoided by utilizing the structural characteristics of the holes.
As shown in FIG. 4, the horizontal distance La1 between the first rotating shaft 101 and the second rotating shaft 102 on the pressing plate 1 is set in the range of 25mm to 30mm, and the vertical distance La2 between the first rotating shaft 101 and the second rotating shaft 102 is set in the range of 14mm to 16 mm.
The second rotation shaft 102 is a rotation shaft of the first end of the locking bush 5.
The third rotating shaft 103 is a rotating shaft of the third end of the J-shaped member 3.
The fourth rotating shaft 104 is a rotating shaft of the second end of the long link 6.
The fifth rotation shaft 105 is a rotation shaft of the first end of the J-shaped member 3.
The sixth rotating shaft 106 is a rotating shaft of the second end of the J-shaped member 3.
The supporting plate 2 is provided with a clamping groove, so that the long shaft 7 can be clamped in when being clamped, and the physical limiting effect is achieved.
As shown in FIG. 5, the vertical distance Lb1 between the first rotating shaft 101 and the third rotating shaft 103 on the pallet 2 is set within the range of 10mm to 12mm, the vertical distance Lb2 between the first rotating shaft 101 and the center of the card slot is set within the range of 45mm to 47mm, the vertical distance Lb3 between the first rotating shaft 101 and the fourth rotating shaft 104 is set within the range of 6m to 8mm, the horizontal distance Lb4 between the first rotating shaft 101 and the third rotating shaft 103 is set within the range of 56mm to 58mm, the horizontal distance Lb5 between the third rotating shaft 103 and the fourth rotating shaft 104 is set within the range of 147mm to 149mm, the horizontal distance Lb6 between the first rotating shaft 101 and the center of the card slot is set within the range of 62mm to 64mm, and the radius Rb1 of the card slot on the pallet 2 is set within the range of 8mm to 10 mm.
As shown in FIG. 6, the J-shaped part 3 is a common component of the crank rocker mechanism and the double rocker mechanism, the vertical distance Lc1 between the third rotating shaft 103 and the fifth rotating shaft 105 on the J-shaped part is set within the range of 72mm to 74mm, the vertical distance Lc2 between the third rotating shaft 103 and the sixth rotating shaft 106 is set within the range of 63mm to 65mm, and the horizontal distance Lc3 between the third rotating shaft 103 and the sixth rotating shaft 106 is set within the range of 18mm to 20 mm.
The distance Ld1 between the sixth rotating shaft 106 of the short link 4 and the long shaft 7 (i.e., the length of the short link 4) is set in the range of 50mm to 52 mm. The distance Lf1 between the long shaft 7 of the long link 6 and the fourth rotating shaft 104 (i.e., the length of the long link 6) is set within the range of 146mm to 148 mm.
As shown in fig. 7, the adjustable locking rod drives the locking shaft 10 to rotate through the adjusting knob 11, and the connection distance Lm1 between the second rotating shaft 102 and the sixth rotating shaft 106 can be adjusted within a range of 68mm-73mm by matching the threads arranged on the locking shaft 10 with the internal threads on the locking bush 5. Regular hexagon holes in the center of the adjusting knob 11 are assembled with regular hexagon section shafts on the locking shaft 10, so that the adjusting knob 11 and the locking shaft 10 cannot rotate relatively.
The crank rocker mechanism should ensure the following four dimensions: among a connecting line distance La3 between the first rotating shaft 101 and the second rotating shaft 102, a connecting line distance Lm1 between the second rotating shaft 102 and the sixth rotating shaft 106, a connecting line distance Lc1 between the third rotating shaft 103 and the fifth rotating shaft 105, and a connecting line distance Lb4 between the first rotating shaft 101 and the third rotating shaft 103, the sum of the maximum size and the minimum size should be less than or equal to the sum of the other two sizes, and the connecting line distance La3 between the first rotating shaft 101 and the second rotating shaft 102 must be the minimum size of the four sizes.
As shown in fig. 8, the double rocker mechanism should ensure the following four dimensions: among a connecting line distance Lc4 between the third rotating shaft 103 and the sixth rotating shaft 106, a distance Ld1 between the sixth rotating shaft 106 and the long shaft 7, a distance Lf1 between the fourth rotating shaft 104 and the long shaft 7, and a connecting line distance Lb7 between the fourth rotating shaft 104 and the third rotating shaft 103, the sum of the maximum dimension and the minimum dimension should be less than or equal to the sum of the other two dimensions, and the distance Ld1 between the sixth rotating shaft 106 and the long shaft 7 must be the minimum dimension of the four dimensions.
A clamping and locking operation of a helicopter blade clamping and locking device is as follows:
1) rotating the adjusting knob 11 to drive the locking shaft 10 to move, so that the length of the adjustable locking rod is shortened;
2) the push rod 8 is pulled downwards to drive the long shaft 7 to be separated from the clamping groove of the supporting plate 2, the double-rocker mechanism starts to move, and the short connecting rod 4 moves downwards to drive the J-shaped piece to rotate;
3) the J-shaped piece 3 drives a crank rocker mechanism to move, so that the pressure plate 1 rotates around the supporting plate 2, and the blade clamping and locking device is opened to 180 degrees;
4) placing the paddle into the pallet 2;
5) pulling the pressing plate 1 by hand to be attached to the upper molded surface of the paddle;
6) the push rod 8 is pushed, and the double-rocker mechanism enables the long shaft 7 to be clamped into the clamping groove of the supporting plate 2 through a mechanism singular point (dead point);
7) the adjusting knob 11 is adjusted to lengthen the adjustable locking rod, so as to realize the locking of the whole rod system structure.
The utility model provides a quick centre gripping locking and release of paddle can be realized to helicopter paddle centre gripping locking device, and the angle can be opened to more than 180 between clamp plate and layer board, satisfies the paddle centre gripping demand of different positions, and convenient to use is swift, and the practicality is high, can satisfy the in-service use demand that the helicopter transported fast.
The invention adopts the supporting plate and the pressing plate to clamp the paddle, and the paddle is physically locked by adjusting the rod length of the rod system of the connecting rod mechanism and crossing a singular point of the mechanism, so as to realize the quick clamping, locking and releasing of the paddle, and the invention has the main advantages that:
the supporting plate and the pressing plate can be opened to more than 180 degrees, interference of all parts can not be generated, and the clamping requirements of the blades at different positions can be met;
the adjustable locking rod can adjust the length through the knob, the locking force is small, and the operation of personnel is easy;
the mechanism is physically locked by crossing singular points (dead points), so that the reliability is high;
a pin shaft hole is formed below the supporting plate, so that the clamped and locked blade can be quickly fixed at an appointed position through the pin shaft hole;
the locking mode of the blade clamping and locking device and a common clamp is different from that of the blade clamping and locking device: the common thread locking clamp needs to be locked by threads in a full stroke, and if the clamping object is large in size, the locking stroke is long and the time is long; the locking device realizes that the pressure plate is opened to 180 degrees through a mechanism rod system, the rod length near a singular point of the mechanism is adjusted through threads, the locking stroke is only the adjustment amount of the rod length, and the locking time is shortened;
the utility model provides a helicopter paddle centre gripping locking device, the locking mode is simple and convenient, and the clamp plate opening angle is big, and the reliability is high, can realize quick clamping under less manual operation power condition, and the accessible changes the wing section mould line of layer board and clamp plate and adapts to the paddle of not unidimensional. Has good innovation, practicability and economy.
Claims (8)
1. A helicopter blade clamping and locking device, comprising: the device comprises a pressure plate (1), a supporting plate (2), a J-shaped piece (3), a short connecting rod (4), an adjustable locking rod, a long connecting rod (6), a long shaft (7) and a push rod (8);
the pressing plate (1) is rotatably connected to a first rotating shaft (101) on the supporting plate (2), and the pressing plate (1) and the supporting plate (2) are used for clamping the paddle;
the first end of the adjustable locking rod is connected with the pressure plate (1), and the second end of the adjustable locking rod is rotatably connected with the first end of the J-shaped piece (3); the length change of the adjustable locking rod drives the pressing plate (1) to rotate around the first rotating shaft (101);
the second end of the J-shaped piece (3) is rotationally connected with the first end of the short connecting rod (4), and the third end of the J-shaped piece is rotationally connected with the supporting plate (2);
the second end of the short connecting rod (4) and the first end of the long connecting rod (6) are rotatably sleeved on the long shaft (7); the second end of the long connecting rod (6) is rotatably connected with the supporting plate (2);
the push rod (8) is hinged with the long shaft (7) and used for pushing the long shaft (7) to move and adjusting the relative positions of the two ends of the short connecting rod (4) and the second end of the long connecting rod (6);
the supporting plate (2) is provided with a supporting groove for clamping the long shaft (7).
2. The device of claim 1, wherein the adjustable detent lever comprises: the device comprises a locking bush (5), a pull rod joint (9), a locking shaft (10) and an adjusting knob (11);
the first end of the locking bush (5) is rotatably connected with the pressure plate (1), and the second end of the locking bush is in threaded connection with the locking shaft (10);
the pull rod joint (9) is sleeved on the locking shaft (10) and is rotatably connected with the first end of the J-shaped piece (3);
adjusting knob (11) cover is established on locking axle (10), is used for driving locking axle (10) rotate, adjust locking axle (10) stretch into the degree in locking bush (5) to change the length of adjustable locking lever.
3. The device according to claim 2, wherein the horizontal distance La1 between the first rotating shaft (101) and the second rotating shaft (102) is set in the range of 25mm to 30mm, and the vertical distance La2 between the first rotating shaft (101) and the second rotating shaft (102) is set in the range of 14mm to 16 mm;
the second rotation shaft (102) is a rotation shaft of the first end of the locking bush (5).
4. The device according to claim 3, wherein the vertical distance Lb1 between the first rotating shaft (101) and the third rotating shaft (103) is set in the range of 10mm to 12mm,
the vertical distance Lb2 between the first rotating shaft (101) and the center of the card slot is set within the range of 45-47 mm, the vertical distance Lb3 between the first rotating shaft (101) and the fourth rotating shaft (104) is set within the range of 6-8 mm, the horizontal distance Lb4 between the first rotating shaft (101) and the third rotating shaft (103) is set within the range of 56-58 mm, the horizontal distance Lb5 between the third rotating shaft (103) and the fourth rotating shaft (104) is set within the range of 147-149 mm, and the horizontal distance Lb6 between the first rotating shaft (101) and the center of the card slot is set within the range of 62-64 mm;
the third rotating shaft (103) is a rotating shaft at the third end of the J-shaped piece (3);
the fourth rotating shaft (104) is a rotating shaft of the second end of the long connecting rod (6);
the fifth rotating shaft (105) is a rotating shaft of the first end of the J-shaped piece (3);
the sixth rotating shaft (106) is a rotating shaft of the second end of the J-shaped piece (3).
5. The device according to claim 4, characterized in that the slot radius Rb1 on the pallet (2) is set in the range of 8mm to 10 mm.
6. Device according to claim 5, characterized in that the vertical distance Lc1 between the third axis of rotation (103) and the fifth axis of rotation (105) of the J-shaped element (3) is set in the range of 72mm to 74mm, the vertical distance Lc2 between the third axis of rotation (103) and the sixth axis of rotation (106) is set in the range of 63mm to 65mm, and the horizontal distance Lc3 between the third axis of rotation (103) and the sixth axis of rotation (106) is set in the range of 18mm to 20 mm.
7. The device according to claim 6, characterized in that the length of the short link (4) is arranged in the range of 50-52 mm.
8. The device according to claim 7, characterized in that the length of the long link (6) is set in the range of 146-148 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111382285.6A CN114030639B (en) | 2021-11-19 | 2021-11-19 | Helicopter blade clamping and locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111382285.6A CN114030639B (en) | 2021-11-19 | 2021-11-19 | Helicopter blade clamping and locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114030639A true CN114030639A (en) | 2022-02-11 |
| CN114030639B CN114030639B (en) | 2023-09-01 |
Family
ID=80138250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111382285.6A Active CN114030639B (en) | 2021-11-19 | 2021-11-19 | Helicopter blade clamping and locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114030639B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040026564A1 (en) * | 2002-03-11 | 2004-02-12 | Michel Romani | Method and apparatus for folding/unfolding the blades of a rotary-wing aircraft rotor |
| CN102442423A (en) * | 2010-10-12 | 2012-05-09 | 徐延宇 | Adjustable-height foldable propeller |
| CN109204808A (en) * | 2018-08-30 | 2019-01-15 | 中宇航通（北京）科技有限公司 | A kind of locking structure of unmanned plane propeller |
| CN109436291A (en) * | 2018-12-29 | 2019-03-08 | 河南三和航空工业有限公司 | A kind of gyroplane fold mechanism |
| CN109533276A (en) * | 2018-11-09 | 2019-03-29 | 中国直升机设计研究所 | A kind of rotary lobe clamping device |
| CN109693781A (en) * | 2019-01-28 | 2019-04-30 | 北京云影飞扬科技有限公司 | A kind of folding paddle of with locking mechanism |
| CN209209029U (en) * | 2018-08-30 | 2019-08-06 | 中宇航通企业管理(北京)有限公司 | A kind of locking structure of unmanned plane propeller |
| CN212125502U (en) * | 2020-03-10 | 2020-12-11 | 无锡汉和航空技术有限公司 | Unmanned aerial vehicle folding three-blade paddle |
-
2021
- 2021-11-19 CN CN202111382285.6A patent/CN114030639B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040026564A1 (en) * | 2002-03-11 | 2004-02-12 | Michel Romani | Method and apparatus for folding/unfolding the blades of a rotary-wing aircraft rotor |
| CN102442423A (en) * | 2010-10-12 | 2012-05-09 | 徐延宇 | Adjustable-height foldable propeller |
| CN109204808A (en) * | 2018-08-30 | 2019-01-15 | 中宇航通（北京）科技有限公司 | A kind of locking structure of unmanned plane propeller |
| CN209209029U (en) * | 2018-08-30 | 2019-08-06 | 中宇航通企业管理(北京)有限公司 | A kind of locking structure of unmanned plane propeller |
| CN109533276A (en) * | 2018-11-09 | 2019-03-29 | 中国直升机设计研究所 | A kind of rotary lobe clamping device |
| CN109436291A (en) * | 2018-12-29 | 2019-03-08 | 河南三和航空工业有限公司 | A kind of gyroplane fold mechanism |
| CN109693781A (en) * | 2019-01-28 | 2019-04-30 | 北京云影飞扬科技有限公司 | A kind of folding paddle of with locking mechanism |
| CN212125502U (en) * | 2020-03-10 | 2020-12-11 | 无锡汉和航空技术有限公司 | Unmanned aerial vehicle folding three-blade paddle |
Non-Patent Citations (1)
| Title |
|---|
| 王丁伟;覃海鹰;李孝松;: "桨叶折叠机构受力分析和计算方法研究", 直升机技术 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114030639B (en) | 2023-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7371135B1 (en) | Vertical axis wind turbine rotor construction | |
| CN101249887A (en) | Aileron rotary retractable flapping wing device | |
| CN207644622U (en) | A kind of short landing deceleration device for unmanned plane | |
| CN114030639A (en) | Helicopter blade clamping and locking device | |
| LU101146B1 (en) | An open-close wing structure of a combination-drive flapping-wing aircraft | |
| CN114044122A (en) | Variable-wing vertical take-off and landing self-grabbing aircraft | |
| CN206384149U (en) | Variable-pitch transmission gear | |
| CN206068131U (en) | The foldable assembly of unmanned plane | |
| CN114455071B (en) | Wing-like dragon carrying robot | |
| US5052641A (en) | Method to construct variable area, membrane spar and wing airfoil aircraft and kite wings and suitable aelerons | |
| CN101973390B (en) | Unfolding mechanism for foldable double wing boards of aircraft | |
| CN218703900U (en) | Bionic grabbing and executing device of unmanned aerial vehicle | |
| US7775843B1 (en) | Wind turbine boats, watercraft drives, and wind turbine enhancements | |
| CN203211999U (en) | Pneumatic glue gripper | |
| CN204189374U (en) | Polymorphic quick change planar linkage mechanism experimental apparatus | |
| CN112429224B (en) | Flapping wing flying device and ornithopter | |
| CN211055200U (en) | Paint kettle carrying cart with clamp | |
| CN202526908U (en) | Double-leaf propeller of model plane | |
| CN206291800U (en) | One kind distribution hinge drives combined type twice-folded wing horizontal spreading mechanism with rope | |
| CN1378948A (en) | 'Menneimasi pendulum arm' and dual-paddle mechanism | |
| CN206297732U (en) | Unmanned plane and its coaxial variable configuration propeller | |
| CN206679257U (en) | Collapsible unmanned plane | |
| CN208714016U (en) | A kind of sorting manipulator | |
| CN113460327A (en) | Pneumatic supporting device and method for airfoil type airplane jig | |
| CN206750122U (en) | Pulp distance varying mechanism and rotor craft in rotor craft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |