CN208775015U - A kind of rotor head mounting structure and unmanned helicopter - Google Patents
A kind of rotor head mounting structure and unmanned helicopter Download PDFInfo
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- CN208775015U CN208775015U CN201821432841.XU CN201821432841U CN208775015U CN 208775015 U CN208775015 U CN 208775015U CN 201821432841 U CN201821432841 U CN 201821432841U CN 208775015 U CN208775015 U CN 208775015U
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- rotor head
- main shaft
- hollow cavity
- fixing axle
- mounting structure
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Abstract
The utility model relates to air vehicle technique field more particularly to a kind of rotor head mounting structures and unmanned helicopter.Rotor head mounting structure includes rotor head, main shaft and fixing axle, there is the first hollow cavity in the middle part of the rotor head, there is the second hollow cavity in the middle part of the main shaft, the lower part of first hollow cavity is set in the top of the main shaft and is fixedly connected with the main shaft, the fixing axle is arranged in first hollow cavity and the second hollow cavity, and the upper end of the fixing axle protrudes from the rotor head, if being provided with dry bearing between second hollow cavity between the fixing axle and first hollow cavity.Rotor head mounting structure provided by the utility model, by setting hollow form for main shaft, and fixing axle is worn in the hollow cavity of main shaft, it can be when main shaft drives rotor head rotation, fixing axle remains stationary, to which fixing axle is capable of providing installation foundation, installation emergency or the demand of communication apparatus above rotor head are met.
Description
Technical field
The utility model relates to air vehicle technique field more particularly to a kind of rotor head mounting structures and unmanned helicopter.
Background technique
With the development of unmanned air vehicle technique, take photo by plane, detect, stability maintenance, investigation, rescue, in terms of embody
Indispensable role either all occupies extremely important status in civil field or military domain.And nobody goes straight up to
Flexibility that machine is used with it and mobility occupy critical role in unmanned plane industry.
It is fixedly connected currently, the rotor head of unmanned helicopter passes through pin shaft or screw mostly with main shaft progress penetration type, this
Kind connection type makes that the fixing axle opposing stationary with body can not be installed inside main shaft, therefore can not be in unmanned helicopter rotor
The equipment such as head top installation emergency parachute, communication radar, the diversification for limiting unmanned helicopter uses, and pin shaft and master
Pole is unfavorable for dismounting between axis, easily causes to damage to main shaft in disassembly process, reduces its service life, there are security risks.
Therefore, a kind of rotor head mounting structure and unmanned helicopter are needed to solve the above technical problems.
Utility model content
One of the utility model is designed to provide a kind of rotor head mounting structure, existing in the prior art to solve
The technical issues of emergency and communication apparatus can not be installed above rotor head.
Another of the utility model is designed to provide a kind of unmanned helicopter, and to solve, in the prior art nobody is straight
The machine of liter is unable to satisfy the technical issues of diversification uses.
For this purpose, the utility model uses following technical scheme:
On the one hand, the utility model provides a kind of rotor head mounting structure, which includes rotor head, master
Axis and fixing axle have the first hollow cavity in the middle part of the rotor head, have the second hollow cavity in the middle part of the main shaft, in described first
The lower part of cavity is set in the top of the main shaft and is fixedly connected with the main shaft, and the fixing axle is arranged in described first
Cavity and the second hollow cavity, and the upper end of the fixing axle protrudes from the rotor head, the fixing axle and described first hollow
If being provided with dry bearing between second hollow cavity between chamber.
As the optimal technical scheme of rotor head mounting structure, pass through holding screw between the rotor head and the main shaft
Connection.
As the optimal technical scheme of rotor head mounting structure, the lower end of the rotor head offer with it is described first hollow
The open slot of chamber connection, the retaining ring for locking the open slot is arranged on the rotor head.
As the optimal technical scheme of rotor head mounting structure, limiting slot, the retaining ring are offered on the rotor head
In the limiting slot.
As the optimal technical scheme of rotor head mounting structure, match between first hollow cavity and the main shaft for interference
It closes.
As the optimal technical scheme of rotor head mounting structure, the fixing axle is hollow shaft.
As the optimal technical scheme of rotor head mounting structure, the bearing is deep groove ball bearing.
As the optimal technical scheme of rotor head mounting structure, first hollow cavity is stepped, including the first ladder
Portion and second step ladder, the second step ladder are located at the upper end of first stepped part, and the diameter of the second step ladder
Less than the diameter of first stepped part；
The main shaft is arranged in first stepped part, and the upper end of the main shaft and first stepped part and described the
Step surface between two stepped parts abuts, and the fixing axle is arranged in the second step ladder and second hollow cavity.
On the other hand, the utility model provides a kind of unmanned helicopter, which includes described in any one as above
Rotor head mounting structure.
The utility model compared with the prior art the utility model has the advantages that
1) rotor head mounting structure provided by the utility model, by setting hollow form for main shaft, and in main shaft
Fixing axle is worn in hollow cavity, can be when main shaft drive rotor head rotation, fixing axle remains stationary, so that fixing axle can mention
For installation foundation, installation emergency or the demand of communication apparatus above rotor head are met.
2) rotor head mounting structure provided by the utility model, by using holding screw and lock between rotor head and main shaft
The type of attachment of tight ring cooperation, not only increases the bonding strength of structure, and convenient between main shaft and rotor head disassembly and
Assembling, reduces the damage to main shaft, increases the service life of main shaft.
3) unmanned helicopter provided by the utility model can be in rotor head by using above-mentioned rotor head mounting structure
The equipment such as emergency parachute, communication radar are installed in top, and the diversification for meeting unmanned helicopter uses.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of rotor head mounting structure provided by the utility model；
Fig. 2 is the main view of rotor head mounting structure provided by the utility model；
Fig. 3 is sectional view along A-A in Fig. 2.
In figure:
10- rotor head；11- open slot；12- limiting slot；20- main shaft；30- fixing axle；40- bearing；50- holding screw；
60- retaining ring.
Specific embodiment
The technical solution of the utility model is further illustrated with embodiment with reference to the accompanying drawing.It is understood that this
Locate described specific embodiment and is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
Illustrate, illustrates only part relevant to the utility model for ease of description, in attached drawing and not all.
As shown in Figure 1-Figure 3, the utility model provides a kind of rotor head mounting structure, including rotor head 10,20 and of main shaft
Fixing axle 30 has the first hollow cavity in the middle part of rotor head 10, has the second hollow cavity, the lower part of the first hollow cavity in the middle part of main shaft 20
It being set in the top of main shaft 20 and is fixedly connected with main shaft 20, fixing axle 30 is arranged in the first hollow cavity and the second hollow cavity, and
The upper end of fixing axle 30 protrudes from rotor head 10, is provided between the second hollow cavity between fixing axle 30 and the first hollow cavity
If dry bearing 40.When main shaft 20 drives rotor head 10 to rotate, fixing axle 30 is remained stationary, so that fixing axle 30 can be as peace
Dress basis meets installation emergency or the demand of communication apparatus above rotor head 10.Preferably, fixing axle 30 is hollow shaft,
Meet its can as emergency or communication apparatus mounting platform on the basis of, alleviate the weight of mounting structure.
Specifically, the first hollow cavity is stepped, including the first stepped part and second step ladder, and second step ladder is located at the
The upper end of stepped plate, and the diameter of second step ladder is less than the diameter of the first stepped part.Main shaft 20 is arranged in the first stepped part,
And the step surface between the upper end of main shaft 20 and the first stepped part and second step ladder abuts；Fixing axle 30 is arranged in the second ladder
Portion and the second hollow cavity.It is arranged by the stairstepping of the first hollow cavity, convenient for the positioning and peace between main shaft 20 and rotor head 10
Dress, the installation being also convenient between fixing axle 30 and main shaft 20 and rotor head 10.
It is provided with through-hole on rotor head 10, threaded hole corresponding with the through-hole, holding screw 50 are provided on main shaft 20
Across through-hole and it is anchored on threaded hole, so that rotor head 10 is fixedly connected with main shaft 20.
Further, the lower end of rotor head 10 offers the open slot 11 being connected to the first hollow cavity, covers on rotor head 10
Equipped with the retaining ring 60 for lock opening slot 11.When rotor head 10 and main shaft 20 assemble, the presence meeting of open slot 11 so that
The bore of first stepped part lower part becomes larger, consequently facilitating main shaft 20 is worn into the first stepped part of rotor head 10；When main shaft 20
After the completion of being positioned with rotor head 10, rotor head 10 and main shaft 20 are connected with holding screw 50 first, is then arranged retaining ring 60
The position of face open slot 11 on rotor head 10, with lock opening slot 11.Cooperated by holding screw 50 and retaining ring 60, no
The bonding strength of structure is increased only, and convenient for the disassembly and assembly between main shaft 20 and rotor head 10, is reduced to main shaft
20 damage increases the service life of main shaft 20.Preferably, the position of the lower part face open slot 11 of rotor head 10 is provided with
The limiting slot 12 of annular, retaining ring 60 are located in limiting slot 12.
It in the present embodiment, can be interference fit between the first stepped part and main shaft 20, to further enhance rotor head
Bonding strength between 10 and main shaft 20.It in other embodiments, may be that other are matched between the first stepped part and main shaft 20
Conjunction form.
The bearing 40 being arranged between the second hollow cavity between fixing axle 30 and the first hollow cavity can use deep-groove ball axis
40 are held, 40 structure of deep groove ball bearing is simple, easy to use, and has the advantages that frictional resistance is small, revolving speed is high.
The utility model also provides a kind of unmanned helicopter, including rotor head mounting structure as described above.By using
Above-mentioned rotor head mounting structure can install emergency parachute, communication radar etc. above the rotor head 10 of unmanned helicopter and set
Standby, the diversification for meeting unmanned helicopter uses.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (9)
1. a kind of rotor head mounting structure, which is characterized in that described including rotor head (10), main shaft (20) and fixing axle (30)
There is the first hollow cavity in the middle part of rotor head (10), there is the second hollow cavity in the middle part of the main shaft (20), first hollow cavity
Lower part is set in the top of the main shaft (20) and is fixedly connected with the main shaft (20), and the fixing axle (30) is arranged in described
First hollow cavity and the second hollow cavity, and the upper end of the fixing axle (30) protrudes from the rotor head (10), the fixing axle
(30) if being provided with dry bearing (40) between second hollow cavity between first hollow cavity.
2. rotor head mounting structure according to claim 1, which is characterized in that the rotor head (10) and the main shaft
(20) it is connected between by holding screw (50).
3. rotor head mounting structure according to claim 2, which is characterized in that the lower end of the rotor head (10) offers
The open slot (11) being connected to first hollow cavity is arranged with for locking the open slot (11) on the rotor head (10)
Retaining ring (60).
4. rotor head mounting structure according to claim 3, which is characterized in that offer limit on the rotor head (10)
Slot (12), the retaining ring (60) are located in the limiting slot (12).
5. rotor head mounting structure according to claim 1, which is characterized in that first hollow cavity and the main shaft
It (20) is interference fit between.
6. rotor head mounting structure according to claim 1, which is characterized in that the fixing axle (30) is hollow shaft.
7. rotor head mounting structure according to claim 1, which is characterized in that the bearing (40) is deep groove ball bearing.
8. rotor head mounting structure according to claim 1, which is characterized in that first hollow cavity is stepped, packet
The first stepped part and second step ladder are included, the second step ladder is located at the upper end of first stepped part, and the second-order
The diameter in terraced portion is less than the diameter of first stepped part；
The main shaft (20) is arranged in first stepped part, and the upper end of the main shaft (20) and first stepped part and institute
It states step surface between second step ladder to abut, the fixing axle (30) is arranged in the second step ladder and described second hollow
Chamber.
9. a kind of unmanned helicopter, which is characterized in that including the described in any item rotor head mounting structures of such as claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821432841.XU CN208775015U (en) | 2018-09-03 | 2018-09-03 | A kind of rotor head mounting structure and unmanned helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821432841.XU CN208775015U (en) | 2018-09-03 | 2018-09-03 | A kind of rotor head mounting structure and unmanned helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208775015U true CN208775015U (en) | 2019-04-23 |
Family
ID=66159607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821432841.XU Active CN208775015U (en) | 2018-09-03 | 2018-09-03 | A kind of rotor head mounting structure and unmanned helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208775015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108891593A (en) * | 2018-09-03 | 2018-11-27 | 天津曙光天成科技有限公司 | A kind of rotor head mounting structure and unmanned helicopter |
-
2018
- 2018-09-03 CN CN201821432841.XU patent/CN208775015U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108891593A (en) * | 2018-09-03 | 2018-11-27 | 天津曙光天成科技有限公司 | A kind of rotor head mounting structure and unmanned helicopter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220928 Address after: 300457 No. 105, Building 9, Zone B3 (formerly Zone 2 of Ronghui Business Park), Binhai Zhongguancun Science and Technology Park, Tianjin Economic and Technological Development Zone, Binhai New Area, Tianjin Patentee after: Tianjin Phoenix Intelligent Technology Co.,Ltd. Address before: Floor 1, block B, No.3, Tengfei Road, Junliang City, Dongli District, Tianjin Patentee before: TIANJIN SHUGUANG TIANCHENG TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |