CN111661319A - Unmanned aerial vehicle shock attenuation undercarriage based on non-Newtonian fluid - Google Patents
Unmanned aerial vehicle shock attenuation undercarriage based on non-Newtonian fluid Download PDFInfo
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- CN111661319A CN111661319A CN202010667587.7A CN202010667587A CN111661319A CN 111661319 A CN111661319 A CN 111661319A CN 202010667587 A CN202010667587 A CN 202010667587A CN 111661319 A CN111661319 A CN 111661319A
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- sleeve
- unmanned aerial
- aerial vehicle
- newtonian fluid
- shock
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- 239000012530 fluid Substances 0.000 title claims abstract description 35
- 230000035939 shock Effects 0.000 title claims description 39
- 230000003139 buffering effect Effects 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000013016 damping Methods 0.000 abstract description 8
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
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
- B64C25/58—Arrangements or adaptations of shock-absorbers or springs
- B64C25/62—Spring shock-absorbers; Springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a non-Newtonian fluid-based unmanned aerial vehicle damping undercarriage, which is symmetrically arranged at the bottom of an unmanned aerial vehicle and comprises a damping component and a rebound buffering component, wherein the rebound buffering component comprises a sleeve symmetrically arranged on the damping component and a telescopic column, one end part of the telescopic column is positioned in the sleeve, the other end part of the telescopic column is positioned outside the sleeve, the telescopic column can move along the axial direction of the sleeve and forms an accommodating chamber with an inner cavity of the sleeve, and the accommodating chamber is filled with non-Newtonian fluid. Utilize non-Newtonian hydrodynamics principle, through setting up the resilience buffering subassembly, rebound after shock-absorbing subassembly and ground contact take place the compression and produce the impact force to the sleeve after, when the flexible post that lies in the sleeve receives telescopic impact force, the flexible post that lies in the sleeve produces the shearing force with non-Newtonian fluid for non-Newtonian fluid's retardation increases, offsets the partial impact force that flexible post received, and then reduces unmanned aerial vehicle's resilience height, improve unmanned aerial vehicle descending stationarity and security.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicle supports, in particular to a non-Newtonian fluid-based damping undercarriage for an unmanned aerial vehicle.
Background
The unmanned aerial vehicle is an unmanned aerial vehicle operated by using a radio remote control device and a self-contained program control device, is a general name of unmanned aerial vehicles, and is originally applied to the military field. Along with the development and popularization of unmanned aerial vehicle technology, unmanned aerial vehicles have been widely applied to the fields of aerial photography, agriculture, forestry, surveying and mapping and the like.
Receive the restriction of operation precision or prior art condition, unmanned aerial vehicle is when descending, and inevitable receives the strong reaction force impact in ground, can harm the unmanned aerial vehicle organism to a certain extent and erect the precision apparatus on unmanned aerial vehicle, for this reason, unmanned aerial vehicle all can set the shock absorber support at present, can obtain the shock attenuation when unmanned aerial vehicle descends.
But there are some problems in present unmanned aerial vehicle shock mount still, for example: when unmanned aerial vehicle descends, elastic compression takes place with ground contact for shock absorber support, and after reaching elastic compression's maximum, shock absorber support also can take place corresponding bounce-back that recovers, upwards pushes away the bullet with unmanned aerial vehicle, probably causes unmanned aerial vehicle and support rebound upwards to empty, causes the damage to unmanned aerial vehicle.
Disclosure of Invention
Therefore, the invention aims to provide the non-Newtonian fluid-based unmanned aerial vehicle damping undercarriage, which absorbs the rebound force of the compressed damping support and improves the landing safety of the unmanned aerial vehicle.
To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:
the utility model provides an unmanned aerial vehicle shock attenuation undercarriage based on non-Newtonian fluid, the symmetry sets up in unmanned aerial vehicle's bottom, and it includes:
a shock absorbing assembly;
rebound buffering subassembly is located including the symmetry sleeve and one end on the shock attenuation subassembly are located in the sleeve, another tip is located the telescopic post outside the sleeve, telescopic post can along telescopic axial displacement, and with telescopic inner chamber forms and holds the cavity, it has non-Newtonian fluid to hold the intracavity packing.
As a preferable aspect of the non-newtonian fluid based shock absorbing landing gear for unmanned aerial vehicles according to the present invention, the shock absorbing assembly includes:
a shock-absorbing frame having a chute;
the sliding seat extends to the sliding groove from the bottom of the shock absorption frame and can slide up and down in the sliding groove;
and one end of the elastic component is fixed on the inner top surface of the shock absorption frame, and the other end of the elastic component is fixed on the top of the sliding seat.
As a preferable aspect of the non-newtonian fluid based shock absorption landing gear for unmanned aerial vehicles according to the present invention, the shock absorption frame has a plurality of first magnet blocks on an inner top surface;
the top of the elastic component is provided with a plurality of second magnet blocks which correspond to the first magnet blocks one by one;
wherein the first and second magnet block viewing surfaces repel each other.
As a preferable scheme of the non-newtonian fluid based shock absorption undercarriage for unmanned aerial vehicles, the undercarriage further comprises a mounting assembly, wherein the mounting assembly comprises two symmetrically arranged collars and a mounting plate located between the two collars;
the telescopic column comprises a vertical column and a horizontal column, one end of the vertical column is positioned in the sleeve, and the horizontal column is perpendicular to the vertical column;
wherein, the lantern ring is sleeved on the horizontal column in a clamping way.
As a preferable scheme of the non-newtonian fluid based shock absorption undercarriage for unmanned aerial vehicles, the top of the mounting plate is flush with the top of the collar, and the top of the mounting plate is provided with a mounting hole.
Compared with the prior art, the invention has the beneficial effects that: utilize non-Newtonian hydrodynamics principle, through setting up the resilience buffering subassembly, rebound after shock-absorbing subassembly and ground contact take place the compression and produce the impact force to the sleeve after, when the flexible post that lies in the sleeve receives telescopic impact force, the flexible post that lies in the sleeve produces the shearing force with non-Newtonian fluid for non-Newtonian fluid's retardation increases, offsets the partial impact force that flexible post received, and then reduces unmanned aerial vehicle's resilience height, improve unmanned aerial vehicle descending stationarity and security.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:
FIG. 1 is a schematic diagram of the overall structure of a non-Newtonian fluid-based shock-absorbing landing gear of an unmanned aerial vehicle;
fig. 2 is a partial structural cross-sectional view of a non-newtonian fluid based shock absorbing landing gear of an unmanned aerial vehicle according to the present invention, as shown in fig. 1.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Next, the present invention will be described in detail with reference to the drawings, wherein for convenience of illustration, the cross-sectional view of the device structure is not enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
The invention provides a non-Newtonian fluid-based unmanned aerial vehicle damping undercarriage which is used for absorbing the rebound force of a damping support after compression and improving the landing safety of an unmanned aerial vehicle.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1-2 are schematic structural diagrams illustrating an embodiment of a non-newtonian fluid-based shock-absorbing landing gear of an unmanned aerial vehicle according to the present invention, and referring to fig. 1-2, the non-newtonian fluid-based shock-absorbing landing gear of the present embodiment of the present invention includes: shock assembly 100 and rebound cushioning assembly 200.
When shock-absorbing component 100 is used for unmanned aerial vehicle to descend, offset the impact force on ground with ground contact. Specifically, in the present embodiment, the damper assembly 100 includes a damper frame 110, a sliding seat 120, and an elastic member 130. The shock-absorbing frame 110 has a sliding groove 110a, the sliding seat 120 extends from the bottom of the shock-absorbing frame 110 to the sliding groove 110a and can slide up and down in the sliding groove 110a, one end of the elastic member 130 is fixed on the inner top surface of the shock-absorbing frame 110, and the other end is fixed on the top of the sliding seat 120. When the unmanned aerial vehicle lands, the specific action process of the shock absorption assembly 100 is as follows: after the sliding seat 120 contacts the ground, it slides upward in the sliding groove 110a relative to the shock-absorbing frame 110, at this time, the elastic component 130 is compressed to counteract the impact force of the absorbed ground, and after the elastic component 130 reaches the maximum compression amount, the elastic component 130 rebounds elastically to generate an upward rebound force for the shock-absorbing frame 110. In the present embodiment, in order to further improve the shock absorbing performance of the shock absorbing unit 100, in the present embodiment, the inner top surface of the shock absorbing frame 110 has a plurality of first magnet blocks 110b, the top portion of the elastic member 130 has a plurality of second magnet blocks 120a corresponding to the first magnet blocks 110b one by one, and the first magnet blocks 110b and the second magnet blocks 120a repel each other in view of the surface. When the sliding seat 120 slides upward in the sliding groove 110a relative to the shock-absorbing frame 110 after contacting the ground, the first magnet block 110b and the second magnet block 120a gradually approach each other to generate a gradually increasing repulsive force to offset a portion of the impact force of the ground.
With reference to fig. 1-2, when the unmanned aerial vehicle lands on the ground, after the shock-absorbing assembly 100 is compressed by the contact with the ground and rebounds to generate an impact force on the sleeve 210, when the telescopic column 220 located in the sleeve 210 receives the impact force of the sleeve 210, the telescopic column 220 located in the sleeve 210 generates a shearing force with the non-newtonian fluid 230, so that the blocking force of the non-newtonian fluid 230 is increased, a part of the impact force received by the telescopic column 220 is offset, and the rebound height of the unmanned aerial vehicle is reduced.
In order to facilitate the fixed installation of the non-newtonian fluid-based unmanned aerial vehicle shock absorption landing gear to the bottom of the unmanned aerial vehicle, please refer to fig. 1 again, in this embodiment, the non-newtonian fluid-based unmanned aerial vehicle shock absorption landing gear further includes a mounting assembly 300, the mounting assembly 300 includes two symmetrically arranged collars 310 and a mounting plate 320 located between the two collars 310, the telescopic column 220 includes a vertical column 220a with one end located in the sleeve 210 and a horizontal column 220b installed perpendicular to the vertical column 220a, the collars 310 are clamped on the horizontal column 220b, after the two collars 310 of the mounting assembly 300 are sleeved on the horizontal column 220b, the mounting plate 320 is parallel to the bottom of the unmanned aerial vehicle, the mounting plate 320 is attached to the bottom of the unmanned aerial vehicle, the mounting plate 320 is fixed to the knobs of the unmanned aerial vehicle by bolts, so as to facilitate the fixed installation and detachment from the bottom of the unmanned aerial vehicle, as a, the top of the mounting plate 320 is flush with the top of the collar 310, and the top of the mounting plate 320 is provided with mounting holes.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of the invention may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. The utility model provides an unmanned aerial vehicle shock attenuation undercarriage based on non-Newtonian fluid, the symmetry sets up in unmanned aerial vehicle's bottom, its characterized in that includes:
a shock absorbing assembly (100);
rebound buffering subassembly (200), including the sleeve (210) of symmetry setting on shock attenuation subassembly (100) and one end lie in sleeve (210), another tip lies in telescopic column (220) outside sleeve (210), telescopic column (220) can be along the axial of sleeve (210) is movable, and with the inner chamber formation holding chamber of sleeve (210), it is filled with non-Newtonian fluid (230) in the holding chamber.
2. A non-newtonian fluid based unmanned aircraft shock absorbing landing gear according to claim 1, wherein the shock absorbing assembly (100) comprises:
a shock-absorbing frame (110) having a chute (110 a);
a sliding seat (120) extending from the bottom of the shock-absorbing frame (110) to the sliding groove (110a) and capable of sliding up and down in the sliding groove (110 a);
and one end of the elastic component (130) is fixed on the inner top surface of the shock absorption frame (110), and the other end of the elastic component is fixed on the top of the sliding seat (120).
3. A non-newtonian fluid based unmanned aircraft shock absorbing landing gear according to claim 2, wherein the shock absorbing frame (110) has a plurality of first magnet blocks (110b) on an interior top surface;
the top of the elastic component (130) is provided with a plurality of second magnet blocks (120a) which correspond to the first magnet blocks (110b) one by one;
wherein the first magnet block (110b) and the second magnet block (120a) are mutually repulsive in view.
4. A non-newtonian fluid based shock absorbing landing gear for unmanned aerial vehicles according to claim 1, further comprising a mounting assembly (300), the mounting assembly (300) comprising two symmetrically disposed collars (310) and a mounting plate (320) between the two collars (310);
the telescopic column (220) comprises a vertical column (220a) with one end positioned in the sleeve (210) and a horizontal column (220b) vertically installed with the vertical column (220 a);
wherein the collar (310) is sleeved on the horizontal column (220 b).
5. The non-Newtonian fluid based shock absorbing landing gear for an unmanned aerial vehicle according to claim 4, wherein a top of the mounting plate (320) is flush with a top of the collar (310), and a mounting hole is formed in the top of the mounting plate (320).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010667587.7A CN111661319A (en) | 2020-07-13 | 2020-07-13 | Unmanned aerial vehicle shock attenuation undercarriage based on non-Newtonian fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010667587.7A CN111661319A (en) | 2020-07-13 | 2020-07-13 | Unmanned aerial vehicle shock attenuation undercarriage based on non-Newtonian fluid |
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| Publication Number | Publication Date |
|---|---|
| CN111661319A true CN111661319A (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010667587.7A Withdrawn CN111661319A (en) | 2020-07-13 | 2020-07-13 | Unmanned aerial vehicle shock attenuation undercarriage based on non-Newtonian fluid |
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| Country | Link |
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| CN (1) | CN111661319A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360920A (en) * | 2020-11-02 | 2021-02-12 | 苏州昆卓精密制造有限公司 | Buffer damping stair floor and debugging method thereof |
| CN112399760A (en) * | 2020-10-26 | 2021-02-23 | 江苏森服电磁环境技术有限公司 | Antidetonation anti-drop's modularization wave filter |
-
2020
- 2020-07-13 CN CN202010667587.7A patent/CN111661319A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112399760A (en) * | 2020-10-26 | 2021-02-23 | 江苏森服电磁环境技术有限公司 | Antidetonation anti-drop's modularization wave filter |
| CN112399760B (en) * | 2020-10-26 | 2021-10-15 | 江苏森服电磁环境技术有限公司 | Antidetonation anti-drop's modularization wave filter |
| CN112360920A (en) * | 2020-11-02 | 2021-02-12 | 苏州昆卓精密制造有限公司 | Buffer damping stair floor and debugging method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20200915 |