CN219904760U - Rotor head and oar clamping mechanism of double-rotor unmanned helicopter - Google Patents
Rotor head and oar clamping mechanism of double-rotor unmanned helicopter Download PDFInfo
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- CN219904760U CN219904760U CN202321724555.1U CN202321724555U CN219904760U CN 219904760 U CN219904760 U CN 219904760U CN 202321724555 U CN202321724555 U CN 202321724555U CN 219904760 U CN219904760 U CN 219904760U
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- bidirectional screw
- unmanned helicopter
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- 230000002457 bidirectional effect Effects 0.000 claims description 39
- 230000009977 dual effect Effects 0.000 claims 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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Abstract
The utility model belongs to the technical field of unmanned aerial vehicles, in particular to a rotor head and propeller clamp mechanism of a double-rotor unmanned helicopter, which comprises a body, wherein two symmetrically arranged propellers are arranged on the body through bolts, the body is connected with the propellers through a stabilizing mechanism, and the stabilizing mechanism comprises an internal thread sleeve.
Description
Technical Field
The utility model relates to the technical field of unmanned aerial vehicles, in particular to a rotor head and oar clamping mechanism of a double-rotor unmanned helicopter.
Background
Along with the development of unmanned aerial vehicle technology, it is widely used in fields such as taking photo by plane, long-range air monitoring, investigation, plant protection, fire control, according to unmanned aerial vehicle pneumatic layout mode's difference, unmanned aerial vehicle can divide into unmanned fixed wing, unmanned helicopter, unmanned many rotors etc..
The current unmanned aerial vehicle rotor head's screw generally adopts single vertical bolt to press from both sides with the oar to constitute, when the screw is installed, inserts the oar clamp with the screw at first, then aligns the hole site of screw with the hole site of oar clamp, then utilizes the bolt with its fixed connection.
When the rotor head rotates, the propeller can generate huge centrifugal force, so that the vertical bolts are easy to bend, and the screw bolt is not timely replaced, so that the propeller is ejected, people can be injured, or disastrous consequences such as uncontrolled falling of an airplane are generated, huge safety implications are brought, huge losses are caused for users, simultaneously, the propeller and the propeller clamp are in threaded connection through the single vertical bolt, when the rotor head rotates, the propeller is easy to deflect relative to the propeller clamp, and accordingly the flight effect of a helicopter is greatly reduced.
Therefore, a rotor head and blade clamping mechanism of a double-rotor unmanned helicopter is provided for solving the problems.
Disclosure of Invention
In order to make up the deficiency of the prior art, when the rotor head rotates, the propeller generates huge centrifugal force, so that the vertical bolt is easy to bend, and the screw is not timely replaced, so that the propeller is ejected, people can be injured, or catastrophic results such as uncontrolled falling of an airplane are generated, huge safety implications are brought, huge losses are also caused for users, simultaneously, the propeller is in threaded connection with the rotor clamp through a single vertical bolt, and when the rotor head rotates, the propeller is easy to deflect relative to the rotor clamp, so that the flying effect of a helicopter is greatly reduced.
The technical scheme adopted for solving the technical problems is as follows: the utility model discloses a rotor head and oar clamping mechanism of a double-rotor unmanned helicopter, which comprises a body, wherein two symmetrically arranged propellers are arranged on the body through bolts, the body is connected with the propellers through a stabilizing mechanism, the stabilizing mechanism comprises an internal thread sleeve, a bidirectional screw rod is connected to the internal thread of the internal thread sleeve, a rotating circular ring is rotationally connected to the surface of the bidirectional screw rod through a thrust bearing, a fixed circular ring is fixedly connected to the surface of the bidirectional screw rod, a spring is wound on the surface of the bidirectional screw rod, one end of the spring is connected with the rotating circular ring, the other end of the spring is connected with the body, a threaded hole is formed in the surface of the propeller, and one end of the bidirectional screw rod, which is far away from the internal thread sleeve, is in threaded connection with the threaded hole; the rotating ring moves to stretch the spring, so that when the propeller rotates, the connection strength of the propeller and the body can be increased by adopting a mode of transversely connecting the bidirectional screw rod with the propeller, the centrifugal force born by the bolt is shared, the propeller can not deflect relative to the body when rotating, the pretightening force between the bidirectional screw rod and the propeller and between the bidirectional screw rod and the internal thread sleeve is improved due to the tensile force of the spring, the reliability and the tightness between the propeller and the body are enhanced, and the mechanism is greatly exerted as a bridge for improving the connection strength and the connection stability between the propeller and the body.
Preferably, the fixed ring is an external engagement toothed ring; the friction force between the hand and the surface of the fixed circular ring can be increased by arranging the fixed circular ring as the external engaged toothed ring, so that the fixed circular ring is convenient for a user to rotate.
Preferably, two symmetrically arranged openings are formed in the surface of the body, a fixing rod is fixedly connected in the openings, a post gear is rotatably connected to the surface of the fixing rod, and the post gear is meshed with the fixing circular ring; firstly, rotate the column gear, because column gear and fixed ring intermeshing, consequently fixed ring can take place to rotate, and fixed ring can take place to remove for the column gear simultaneously, consequently can more facilitate the user rotate fixed ring through setting up the column gear to need not to stretch into the oar with the finger and press from both sides and rotate fixed ring.
Preferably, a section of the fixed rod extending out of the post gear is provided with a layer of threads; through setting up the screw thread at the one section of dead lever, can carry out spacingly to the axial of pillar gear to avoid the user when rotating the pillar gear, the pillar gear takes place the relative slip at the surface of dead lever, thereby influence the problem emergence of user's operation.
Preferably, the fixing rod is connected with a friction ring through threads; after the two-way screw rod and screw threaded connection are accomplished, the user rotates the friction ring to make the friction ring take place to remove, and then utilize the friction face to support the solid to the pillar gear, thereby avoided because the pillar gear takes place free rotation, thereby drive fixed ring and take place to rotate, and then make the two-way screw rod break away from the problem emergence of screw.
Preferably, an annular cavity is formed in the cylindrical gear; the annular cavity is formed in the column gear, so that the weight of the column gear can be greatly reduced, and the load of the mechanism on the body is greatly reduced.
The utility model has the advantages that:
according to the utility model, through the structural design of the stabilizing mechanism, the spring is stretched due to the movement of the rotating ring, when the propeller rotates, the connection strength of the propeller and the body can be increased by adopting the mode of transverse threaded connection of the bidirectional screw rod and the propeller, the centrifugal force born by the bolt is shared, the propeller cannot deflect relative to the body when rotating, and simultaneously, the pretightening force between the bidirectional screw rod and the propeller and the internal threaded sleeve is improved due to the tensile force of the spring, the reliability and the tightness between the propeller and the body are enhanced, so that the mechanism plays a role in serving as a bridge for improving the connection strength and the connection stability between the propeller and the body.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a body according to the first embodiment;
FIG. 2 is a schematic diagram of the whole structure of a stabilizing mechanism according to the first embodiment;
FIG. 3 is a schematic cross-sectional view of a stabilization mechanism according to the first embodiment;
FIG. 4 is a schematic view showing the overall structure of a bi-directional screw according to the first embodiment;
fig. 5 is a schematic view showing the overall structure of a friction ring according to the second embodiment.
In the figure: 1. a body; 2. a bolt; 3. rotating the propeller; 4. a stabilizing mechanism; 41. an internally threaded sleeve; 42. a bidirectional screw; 43. a thrust bearing; 44. rotating the circular ring; 45. fixing the circular ring; 46. a spring; 47. a threaded hole; 48. an opening; 49. a fixed rod; 491. a post gear; 492. a thread; 493. a friction ring; 494. an annular cavity; 495. and a rubber pad.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1-4, a rotor head and propeller clamping mechanism of a double-rotor unmanned helicopter comprises a body 1, wherein two symmetrically arranged propellers 3 are installed on the body 1 through bolts 2, the body 1 is connected with the propellers 3 through a stabilizing mechanism 4, the stabilizing mechanism 4 comprises an internal thread sleeve 41, a bidirectional screw 42 is connected with the internal thread of the internal thread sleeve 41 in a threaded manner, a rotating circular ring 44 is connected with the surface of the bidirectional screw 42 in a rotating manner through a thrust bearing 43, a fixed circular ring 45 is fixedly connected with the surface of the bidirectional screw 42, a spring 46 is wound on the surface of the bidirectional screw 42, one end of the spring 46 is connected with the rotating circular ring 44, the other end of the spring 46 is connected with the body 1, a threaded hole 47 is formed in the surface of the propellers 3, and one end of the bidirectional screw 42 far away from the internal thread sleeve 41 is connected with the threaded hole 47 in a threaded manner; during operation, after the screw 3 is in threaded connection with the body 1 through the bolt 2, the fixed circular ring 45 is rotated at first, the bidirectional screw 42 is driven to rotate in the inner threaded sleeve 41 due to the fact that the fixed circular ring 45 rotates, the bidirectional screw 42 moves in the inner threaded sleeve 41 due to the fact that the bidirectional screw 42 rotates in the inner threaded sleeve 41, the bidirectional screw 3 is gradually close to the threaded hole 47 of the screw 3 until being in threaded connection with the threaded hole 47, meanwhile, the rotating circular ring 44 is in threaded connection with the bidirectional screw 42 through the thrust bearing 43, rotation of the bidirectional screw 42 does not enable the bidirectional screw 42 to rotate, only the rotating circular ring 44 moves, the spring 46 is stretched due to the fact that the rotating circular ring 44 moves, when the screw 3 rotates, the connection strength between the screw 3 and the body 1 can be increased through the mode of adopting the transverse threaded connection between the bidirectional screw 42 and the screw 3, centrifugal force born by the bolt 2 is shared, the screw 3 cannot deflect relatively with the body 1 when rotating, and simultaneously due to the tensile force effect of the spring 46, the fact that the screw 42 and the screw 3 are in threaded connection with the screw 3 is enhanced, reliability between the screw 3 and the body 1 is improved, and the reliability of the screw 1 is improved, and the connection strength between the screw 3 and the body is greatly improved, and the connection strength is achieved, and the stability is achieved.
The fixed ring 45 is an external meshed toothed ring; during operation, the friction between the hand and the surface of the fixed ring 45 can be increased by arranging the fixed ring 45 as the external engagement toothed ring, thereby facilitating the rotation of the fixed ring 45 by a user.
Two symmetrically arranged openings 48 are formed in the surface of the body 1, a fixed rod 49 is fixedly connected inside the openings 48, a column gear 491 is rotatably connected to the surface of the fixed rod 49, and the column gear 491 is meshed with the fixed circular ring 45; during operation, the pillar gear 491 is rotated first, and because the pillar gear 491 is meshed with the fixed circular ring 45, the fixed circular ring 45 rotates, and meanwhile, the fixed circular ring 45 moves relative to the pillar gear 491, so that a user can rotate the fixed circular ring 45 more conveniently by arranging the pillar gear 491, and fingers do not need to extend into the paddle clamp to rotate the fixed circular ring 45.
A section of the fixed rod 49 extending out of the post gear 491 is provided with a layer of threads 492; in operation, by providing the screw thread 492 on one section of the fixing rod 49, the axial direction of the pillar gear 491 can be limited, so that the problem that the pillar gear 491 slides relatively on the surface of the fixing rod 49 when a user rotates the pillar gear 491, thereby affecting the operation of the user is avoided.
The fixed rod 49 is connected with a friction ring 493 through threads 492 in a threaded manner; when the bidirectional screw 42 is in operation, after the threaded connection of the bidirectional screw 42 and the propeller 3 is completed, a user rotates the friction ring 493, so that the friction ring 493 moves, the friction surface is used for propping against the column gear 491, free rotation of the column gear 491 is avoided, the fixed ring 45 is driven to rotate, and the bidirectional screw 42 is separated from the propeller 3.
An annular cavity 494 is formed in the column gear 491; in operation, the weight of the post gear 491 can be greatly reduced by providing the annular cavity 494 inside the post gear 491, thereby greatly reducing the load of the mechanism to the body 1.
Example two
Referring to fig. 5, in a first comparative example, as another embodiment of the present utility model, a rubber pad 495 is disposed on an outer circumferential surface of the friction ring 493, and a layer of anti-skid patterns is disposed on a surface of the rubber pad 495; during operation, the friction force between the hand of the user and the friction ring 493 can be increased by arranging the rubber pad 495 with anti-slip patterns on the outer circular surface of the friction ring 493, thereby facilitating the rotation of the friction ring 493 by the user.
In the working principle, after the screw 3 is in threaded connection with the body 1 through the bolt 2, the fixed ring 45 is rotated firstly, the bidirectional screw rod 42 is driven to rotate inside the internal thread sleeve 41 due to the rotation of the fixed ring 45, the bidirectional screw rod 42 is moved due to the rotation of the bidirectional screw rod 42 inside the internal thread sleeve 41 and gradually approaches to the threaded hole 47 of the screw 3 until the screw rod is in threaded connection with the threaded hole 47, meanwhile, the rotating ring 44 is in rotational connection with the bidirectional screw rod 42 through the thrust bearing 43, so that the rotation of the bidirectional screw rod 42 does not rotate, only the rotating ring 44 is moved, the spring 46 is stretched due to the movement of the rotating ring 44, when the propeller 3 rotates, the connection strength of the propeller 3 and the body 1 can be increased by adopting the mode of transversely connecting the bidirectional screw rod 42 with the propeller 3, the centrifugal force born by the bolt 2 is shared, the propeller 3 can not deflect relatively with the body 1 when rotating, and simultaneously, the pretightening force between the bidirectional screw rod 42 and the propeller 3 and the internal thread sleeve 41 is improved due to the tensile force of the spring 46, the reliability and the compactness between the propeller 3 and the body 1 are enhanced, so that the mechanism plays a role of being used as a bridge for improving the connection strength and the connection stability between the propeller 3 and the body 1; the friction force between the hand and the surface of the fixed ring 45 can be increased by arranging the fixed ring 45 as the external engaged toothed ring, thereby facilitating the rotation of the fixed ring 45 by a user; when the column gear 491 is rotated, the column gear 491 is meshed with the fixed ring 45, so that the fixed ring 45 rotates, and meanwhile, the fixed ring 45 moves relative to the column gear 491, so that a user can rotate the fixed ring 45 more conveniently by arranging the column gear 491, and fingers do not need to extend into the paddle clamp to rotate the fixed ring 45.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (6)
1. The utility model provides an unmanned helicopter rotor head oar presss from both sides mechanism of double-rotor, includes body (1), install screw (3) that two symmetries set up through bolt (2) on body (1), body (1) are connected its characterized in that with screw (3) through stabilizing mean (4): the stabilizing mechanism (4) comprises an internal thread sleeve (41), a bidirectional screw rod (42) is connected with the internal thread of the internal thread sleeve (41), a rotating circular ring (44) is rotationally connected to the surface of the bidirectional screw rod (42) through a thrust bearing (43), a fixed circular ring (45) is fixedly connected to the surface of the bidirectional screw rod (42), a spring (46) is wound on the surface of the bidirectional screw rod (42), one end of the spring (46) is connected with the rotating circular ring (44), the other end of the spring (46) is connected with the body (1), a threaded hole (47) is formed in the surface of the propeller (3), and one end of the bidirectional screw rod (42) away from the internal thread sleeve (41) is in threaded connection with the threaded hole (47).
2. The rotor head and rotor blade clamping mechanism of a dual rotor unmanned helicopter according to claim 1, wherein: the fixed ring (45) is an external meshed toothed ring.
3. The rotor head and rotor blade clamping mechanism of a dual rotor unmanned helicopter according to claim 2, wherein: two symmetrically arranged openings (48) are formed in the surface of the body (1), fixing rods (49) are fixedly connected to the inside of the openings (48), column gears (491) are rotatably connected to the surface of the fixing rods (49), and the column gears (491) are meshed with the fixing rings (45).
4. A dual rotor unmanned helicopter rotor head and rotor clamp mechanism according to claim 3 wherein: a section of the fixed rod (49) extending out of the column gear (491) is provided with a layer of threads (492).
5. The rotor head and rotor blade clamping mechanism of the double-rotor unmanned helicopter according to claim 4, wherein: the fixed rod (49) is connected with a friction ring (493) through threads (492) in a threaded manner.
6. The rotor head and rotor blade clamping mechanism of the dual rotor unmanned helicopter according to claim 5, wherein: an annular cavity (494) is formed in the column gear (491).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321724555.1U CN219904760U (en) | 2023-07-04 | 2023-07-04 | Rotor head and oar clamping mechanism of double-rotor unmanned helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321724555.1U CN219904760U (en) | 2023-07-04 | 2023-07-04 | Rotor head and oar clamping mechanism of double-rotor unmanned helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219904760U true CN219904760U (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321724555.1U Active CN219904760U (en) | 2023-07-04 | 2023-07-04 | Rotor head and oar clamping mechanism of double-rotor unmanned helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219904760U (en) |
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2023
- 2023-07-04 CN CN202321724555.1U patent/CN219904760U/en active Active
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