CN209305824U - A kind of unmanned plane vibration damping undercarriage - Google Patents
A kind of unmanned plane vibration damping undercarriage Download PDFInfo
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- CN209305824U CN209305824U CN201821700228.1U CN201821700228U CN209305824U CN 209305824 U CN209305824 U CN 209305824U CN 201821700228 U CN201821700228 U CN 201821700228U CN 209305824 U CN209305824 U CN 209305824U
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- shock absorption
- unmanned plane
- vibration damping
- supporting leg
- absorption footpad
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Abstract
The utility model discloses a kind of unmanned plane vibration damping undercarriage, including multiple supporting legs, the lower end of each supporting leg is equipped with shock absorption footpad, and the shock absorption footpad is provided with and the matched mounting hole of the supporting leg；The mounting hole and supporting leg of the shock absorption footpad are interference fitted；The shock absorption footpad has vibration damping thickness, and vibration damping thickness and unmanned plane self weight keep the corresponding relationship of setting.The utility model unmanned plane vibration damping undercarriage has the characteristics that materials are convenient, manufacturing cost is low, and the impact of unmanned plane is faced when effectively reducing UAV Landing, extends the service life of unmanned plane.
Description
Technical field
The utility model relates to unmanned plane fields, and in particular to a kind of unmanned plane vibration damping undercarriage.
Background technique
Multi-rotor unmanned aerial vehicle takeoff and landing mode be VTOL, and landing when largely fly hand operation when, can exist
Unmanned plane receives throttle at a certain altitude from the ground, causes unmanned plane larger by ground shock power when landing, over time can
Unmanned plane body is caused to be damaged or reduce the service life, therefore design a kind of unmanned plane vibration damping undercarriage to be highly desirable,
It can be improved service life in face of the impact of unmanned plane to protect body not damaged with reducing when landing in this way.
Utility model content
In order to solve the above technical problems, the main purpose of the utility model is to provide a kind of unmanned plane vibration damping undercarriage, energy
Vibration when UAV Landing is enough absorbed, reduces the impact that ground faces unmanned plane, improves the service life of unmanned plane.
A kind of unmanned plane vibration damping undercarriage, including multiple supporting legs, the lower end of each supporting leg is equipped with shock absorption footpad, described to subtract
Vibration foot pad is provided with and the matched mounting hole of the supporting leg；
The mounting hole and supporting leg of the shock absorption footpad are interference fitted；
The shock absorption footpad has vibration damping thickness, and vibration damping thickness and unmanned plane self weight keep the corresponding relationship of setting.
Further, the supporting leg be equipped with supporting leg inner hole, the mounting hole bottom of the shock absorption footpad be provided with in supporting leg
The lower end of the matched frustum in hole, the supporting leg contradicts on the side of the frustum.
Further, the center of the frustum is equipped with hollow portion.
Further, the depth of the mounting hole of the shock absorption footpad is greater than the vibration damping thickness of the shock absorption footpad.
Further, the supporting leg is hollow circuit cylinder, and correspondingly, the mounting hole of the shock absorption footpad is round hole, described
Frustum is the frustum of a cone.
Further, the outer diameter of the diameter of the shock absorption footpad and the supporting leg keeps the corresponding relationship of setting.
Further, the material of the shock absorption footpad is silicon rubber, and the self weight of hardness and unmanned plane keeps pair of setting
It should be related to.
For the unmanned plane undercarriage of technical solutions of the utility model compared with the existing technology, there is convenient, manufacture of drawing materials
It is at low cost, the impact of unmanned plane is faced when effectively reducing UAV Landing, extends the service life of unmanned plane.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the stereoscopic schematic diagram of the utility model unmanned plane vibration damping undercarriage；
Fig. 2 is the decomposing section of the utility model unmanned plane vibration damping undercarriage；
Fig. 3 is second of embodiment of the utility model shock absorption footpad and the assembling schematic diagram of supporting leg；
Fig. 4 is the sectional view of the third embodiment of the utility model shock absorption footpad.
In the above figure: 1 supporting leg；11 supporting leg inner holes；2 shock absorption footpads；21 mounting holes；22 frustums；221 hollow portions；D supporting leg
Outer diameter；A shock absorption footpad mounting hole internal diameter；B shock absorption footpad outer diameter；H shock absorption footpad installs hole depth, T vibration damping thickness.
Specific embodiment
It is understandable in order to enable the above objects, features, and advantages of the utility model to become apparent, it is right with reference to the accompanying drawing
Specific embodiment of the present utility model is described in detail.
Elaborate detail in the following description in order to fully understand the utility model.But the utility model can
It is different from other way described herein with a variety of and implements, those skilled in the art can be without prejudice to the utility model connotation
In the case where do similar popularization.Therefore the utility model is not limited by following public specific embodiment.
With reference to Fig. 1 and Fig. 2, the utility model proposes a kind of unmanned plane vibration damping undercarriages, including multiple supporting legs 1, Mei Gezhi
The lower end of leg 1 is equipped with shock absorption footpad 2, and shock absorption footpad 2 is provided with and the matched mounting hole 21 of supporting leg 1；The installation of shock absorption footpad
Hole 21 and supporting leg 1 are interference fitted；Shock absorption footpad 2 cooperates too loose easy to fall off with supporting leg 1 in order to prevent, and shock absorption footpad 2 and supporting leg 1 need
Certain magnitude of interference is set.It as described in Figure 2, is cylinder with supporting leg 1, for the mounting hole 21 of shock absorption footpad 2 is circular hole, if branch
1 outer diameter of leg is D, and 21 internal diameter of mounting hole of shock absorption footpad 2 is A, then rule of thumb, in the mounting hole 21 of supporting leg 1 and shock absorption footpad 2
Diameter needs to meet: 0.1mm < D-A < 0.25mm.
Shock absorption footpad must also have certain vibration damping thickness, and vibration damping thickness is self-possessed with unmanned plane keeps the corresponding pass of setting
System.If the vibration damping of shock absorption footpad 2, with a thickness of T, the self weight of unmanned plane is M, in order to ensure the effectiveness in vibration suppression of shock absorption footpad 2, according to
The self weight of the vibration damping thickness and unmanned plane of experience shock absorption footpad 2 need to meet following relationship:
When M≤6Kg, 4mm < T≤6mm；
When 6kg < M≤12Kg, 6mm < T≤8mm；
When M > 12Kg, 8mm < T≤10mm.
In the weight transfer of unmanned plane to supporting leg 1, by between supporting leg 1 and the side wall of the mounting hole 21 of shock absorption footpad 2
Frictional force passes to shock absorption footpad, and shock absorption footpad 2 sponges the downward stroke of a part of unmanned plane by the deformation of itself, and prolongs
Long unmanned plane speed is down to for zero time, to realize vibration damping absorbing, plays the protective effect to unmanned plane.
Further, in order to further enhance the damping effect of shock absorption footpad 2, supporting leg 1 is equipped with supporting leg inner hole 11, vibration damping foot
21 bottom of mounting hole of pad, which is provided with, to be contradicted with the matched frustum 22 of 1 inner hole of supporting leg, the lower end of the supporting leg 1 in the frustum 22
Side on.With reference to Fig. 3, frustum 22 is provided in the mounting hole 21 of shock absorption footpad 2, the lower end of supporting leg 1 is contradicted in frustum 22
Side.Such design can allow the bottom of shock absorption footpad 2 also to generate an opposition to the lower end of supporting leg 1, mention
The effectiveness in vibration suppression of high shock absorption footpad 2.When UAV Landing, 2 bottom preferential contact ground of shock absorption footpad, the peace of shock absorption footpad 2
The side wall for filling hole 21 generates a upward reaction force to supporting leg 1 first, contradicts the supporting leg inner hole 11 in 22 side of frustum
Receive upward reaction force.Since frustum 22 has prism, frustum 22 is into supporting leg during UAV Landing
A distance L is entered in hole 11, forms the damping effect to unmanned plane.After unmanned plane leaves ground again, shock absorption footpad 2
The pressure being subject to disappears, and since the side of frustum 22 is inclined-plane, silicon rubber has the ability for reverting to free state, landing
A distance L entered in supporting leg inner hole 11 in the process exits supporting leg inner hole 11 again in the recovery process of silicon rubber, under
One time UAV Landing vibration damping is got ready.
With reference to Fig. 4, further, in order to enable the easily deformable vibration for being easy to absorb unmanned plane of the frustum 22, cone
The center of platform 22 is equipped with hollow portion 221.The deformation of shock absorption footpad 2 is bigger, and effectiveness in vibration suppression is better, and the vibration that unmanned plane is subject to also is got over
It is small, therefore, hollow portion 221 is set at the middle part of frustum 22, can be further improved the effect of vibration damping.
Further, the depth of the mounting hole 21 of the shock absorption footpad 2 is greater than the vibration damping thickness of the shock absorption footpad 2.
Under normal conditions, in order to guarantee that shock absorption footpad 2 can consolidate is attached on supporting leg 1, supporting leg 1 and shock absorption footpad 2
Length of fit need to be greater than the vibration damping thickness T of shock absorption footpad 2, if the depth of the mounting hole 21 of shock absorption footpad 2 is H, preferably,
Usually take following empirical value:
H > T and 2.5D < H < 3.5D.
Further, the supporting leg 1 is hollow circuit cylinder, and correspondingly, the mounting hole 21 of the shock absorption footpad is round hole, institute
Stating frustum 22 is the frustum of a cone.
Preferably, cylindrical have many advantages, such as that selection is convenient, uniform force, the preferred supporting leg 1 of the present embodiment is hollow
Cylinder, correspondingly, the mounting hole 21 of the shock absorption footpad is round hole, and the frustum 22 is the frustum of a cone.After installation, supporting leg 1
Lower end contradict on the side of the frustum of a cone.
Further, the outer diameter of the diameter of the shock absorption footpad 2 and the supporting leg 1 keeps the corresponding relationship of setting.
Under normal conditions, the self weight of unmanned plane is bigger, and correspondingly, the outer diameter of supporting leg 1 is bigger, in order to reduce it to vibration damping
The contact area of the pressure of the unit area of foot pad, shock absorption footpad need to increase accordingly, if B is the outer diameter of shock absorption footpad 2, D is branch
The outer diameter of leg rule of thumb need to usually meet relationship below:
2D < B < 3D.
Further, the material of the shock absorption footpad 2 is silicon rubber, the self weight M of hardness Q (Shore A) and unmanned plane
Keep the corresponding relationship of setting.Usually by the hardness of following empirical value selection silicon rubber:
When 0 < M≤6Kg, 80A < Q≤90A；
When 6 < M≤12Kg, 90A < Q≤100A.
Although having made to retouch in detail to the utility model with a general description of the specific embodiments in this specification
It states, but on the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the utility model belong to the requires of the utility model guarantor
The range of shield.
Claims (7)
1. a kind of unmanned plane vibration damping undercarriage, which is characterized in that including multiple supporting legs (1), the lower end of each supporting leg (1) is equipped with
Shock absorption footpad (2), the shock absorption footpad (2) are provided with and the supporting leg (1) matched mounting hole (21)；
The mounting hole (21) of the shock absorption footpad (2) and supporting leg (1) are interference fitted；
The shock absorption footpad (2) has vibration damping thickness, and vibration damping thickness and unmanned plane self weight keep the corresponding relationship of setting.
2. unmanned plane vibration damping undercarriage according to claim 1, which is characterized in that the supporting leg (1) is equipped with supporting leg inner hole
(11), mounting hole (21) bottom of the shock absorption footpad (2) is provided with and supporting leg inner hole (11) matched frustum (22), the branch
The lower end of leg (1) contradicts on the side of the frustum.
3. unmanned plane vibration damping undercarriage according to claim 2, which is characterized in that during the center of the frustum (22) is equipped with
Empty portion (221).
4. unmanned plane vibration damping undercarriage according to claim 1, which is characterized in that the mounting hole of the shock absorption footpad (2)
(21) depth is greater than the vibration damping thickness of the shock absorption footpad (2).
5. unmanned plane vibration damping undercarriage according to claim 3, which is characterized in that the supporting leg (1) is hollow circuit cylinder, phase
Ying Di, the mounting hole (21) of the shock absorption footpad (2) are round hole, and the frustum (22) is the frustum of a cone.
6. unmanned plane vibration damping undercarriage according to claim 5, which is characterized in that the diameter of the shock absorption footpad (2) with
The outer diameter of the supporting leg (1) keeps the corresponding relationship of setting.
7. unmanned plane vibration damping undercarriage according to claim 1, which is characterized in that the material of the shock absorption footpad (2) is
The self weight of silicon rubber, hardness and unmanned plane keeps the corresponding relationship of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821700228.1U CN209305824U (en) | 2018-10-19 | 2018-10-19 | A kind of unmanned plane vibration damping undercarriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821700228.1U CN209305824U (en) | 2018-10-19 | 2018-10-19 | A kind of unmanned plane vibration damping undercarriage |
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| Publication Number | Publication Date |
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| CN209305824U true CN209305824U (en) | 2019-08-27 |
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| CN201821700228.1U Active CN209305824U (en) | 2018-10-19 | 2018-10-19 | A kind of unmanned plane vibration damping undercarriage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111169663A (en) * | 2020-01-17 | 2020-05-19 | 北京时代精衡航天科技有限公司 | Deep space detection impact overload test and data wireless transmission measuring device |
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2018
- 2018-10-19 CN CN201821700228.1U patent/CN209305824U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111169663A (en) * | 2020-01-17 | 2020-05-19 | 北京时代精衡航天科技有限公司 | Deep space detection impact overload test and data wireless transmission measuring device |
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