CN208947600U - A kind of main paddle clamping structure - Google Patents
A kind of main paddle clamping structure Download PDFInfo
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- CN208947600U CN208947600U CN201821664043.XU CN201821664043U CN208947600U CN 208947600 U CN208947600 U CN 208947600U CN 201821664043 U CN201821664043 U CN 201821664043U CN 208947600 U CN208947600 U CN 208947600U
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- paddle
- ball bearing
- main paddle
- main
- deep groove
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Abstract
The utility model provides a kind of main paddle clamping structure, it is related to unmanned helicopter technical field, it is inconvenient to solve the form installation that main paddle folder existing in the prior art is connect with main hub, it can not realize the function of fast quick-detach, it is bothersome laborious when installing blade, and paddle presss from both sides the technical issues of can not bearing blade bring centrifugal force well, which includes: main paddle paddle folder；Pin shaft: it is set in main paddle paddle folder；Bearing: it is set on pin shaft, bearing includes the first deep groove ball bearing, thrust ball bearing and the second deep groove ball bearing set gradually, wherein, first deep groove ball bearing and the second deep groove ball bearing are respectively arranged at the two sides of pin shaft, thrust ball bearing is set between the first deep groove ball bearing and the pin shaft shaft shoulder, and thrust ball bearing side is bonded with the pin shaft shaft shoulder, the utility model is quickly removed and installed for main paddle folder with main hub.
Description
Technical field
The utility model relates to unmanned helicopter technical fields, more particularly, to a kind of main paddle clamping structure.
Background technique
There are various forms of main rotor heads on unmanned helicopter at present, although the design and fabrication technology of each producer is not
Together, but three classes, full articulation formula main rotor propeller hub, semi-rigid seesaw type main rotor propeller hub and rigid main rotor paddle can be classified as
Hub.Regardless of the main rotor propeller hub using which kind of structure type has main paddle to press from both sides, and the structure of main paddle folder be also it is various,
All there is a common feature in many main paddle folders, the form installation connecting with main hub is inconvenient, can not realize quickly
The function of disassembly, it is bothersome laborious when installing blade, and paddle folder can not bear blade bring centrifugal force well.
Utility model content
The purpose of this utility model is to provide a kind of main paddle clamping structure, with solve main paddle folder existing in the prior art with
It is inconvenient that the form of main hub connection is installed, and can not realize the function of fast quick-detach, bothersome laborious when installing blade, and paddle
The technical issues of folder can not bear blade bring centrifugal force well.In many technical solutions provided by the utility model
Many technical effects elaboration as detailed below that optimal technical scheme can be generated.
To achieve the above object, the utility model provides following technical scheme:
A kind of main paddle clamping structure provided by the utility model, comprising:
Main paddle paddle folder；
Pin shaft: it is set in the main paddle paddle folder；
Bearing: being set on the pin shaft, and the bearing includes the first deep groove ball bearing, the thrust ball bearing set gradually
With the second deep groove ball bearing, wherein first deep groove ball bearing and second deep groove ball bearing are respectively arranged at the pin
The two sides of axis, thrust ball bearing are set between the first deep groove ball bearing and the pin shaft shaft shoulder, and thrust ball bearing side with
The fitting of the pin shaft shaft shoulder.
Preferably, first deep groove ball bearing and second deep groove ball bearing are the deep groove ball bearing of different model.
It preferably, further include the lead lag hinge being set in the main paddle paddle folder, the lead lag hinge is located at the pin shaft short end
Side.
It preferably, further include the first gasket and the second gasket, first gasket is set to second deep groove ball bearing
Between the shaft shoulder, second gasket is set between the lead lag hinge and second deep groove ball bearing.
Preferably, the lead lag hinge is fixed using soket head cap screw, between the soket head cap screw and the lead lag hinge according to
It is secondary be equipped with spring washer and the first plain cushion, wherein the spring washer be arranged in the soket head cap screw nut and first plain cushion it
Between.
It preferably, further include main paddle gasket, the main paddle gasket fits in the main paddle paddle folder inner wall setting.
Preferably, plug is additionally provided on the main paddle paddle folder and plays screw, and the stop nut of screw fit is beaten with the plug.
Preferably, the outer wall of the main paddle paddle folder is equipped with main paddle copper sheathing, and the plug plays screw and passes through the main paddle copper sheathing,
And the plug is beaten between the nut of screw and the main paddle copper sheathing, is equipped with the between the stop nut and the main paddle copper sheathing
Two plain cushions.
Preferably, the main paddle paddle folder uses aviation aluminium.
Preferably, the pin shaft uses titanium alloy material.
Main paddle clamping structure provided by the utility model, passes through the first deep groove ball bearing, the thrust ball set gradually on pin shaft
Bearing and the second deep groove ball bearing can be good at bearing blade bring centrifugal force and installation and removal are time saving and energy saving.Wherein,
Thrust ball bearing is mainly used for bearing blade bring centrifugal force, thrust load can be born when blade runs at high speed, in displacement
When main paddle paddle folder is around pin shaft reciprocating rotary when movement, the first deep groove ball bearing and the second deep groove ball bearing provide necessary support
Power, this structure can not only meet the intensity requirement of the needs of main paddle folder, additionally it is possible to realize and the Fast Installation of main hub and more
The paddle clamping structure changed, satisfies the use demand.
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, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of main one embodiment of paddle clamping structure of the utility model；
Fig. 2 is the schematic cross-sectional view of the main paddle clamping structure of the utility model；
Fig. 3 is the configuration schematic diagram of main one embodiment of paddle clamping structure of the utility model.
In figure: 1, main paddle paddle folder；2, pin shaft；3, the first deep groove ball bearing；4, thrust ball bearing；5, the second deep-groove ball axis
It holds；6, lead lag hinge；7, the first gasket；8, the second gasket；9, soket head cap screw；10, spring washer；11, the first plain cushion；12, plug beats spiral shell
Nail；13, stop nut；14, main paddle copper sheathing；15, the second plain cushion；16, main paddle gasket；21, the shaft shoulder.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
The utility model provides a kind of main paddle clamping structure, and Fig. 1 is the structural schematic diagram of the main paddle clamping structure of the present embodiment, such as
Shown in Fig. 1, comprising: main paddle paddle folder 1；Pin shaft 2: it is set in main paddle paddle folder 1；Bearing: being set on pin shaft 2, and Fig. 2 is this implementation
The schematic cross-sectional view of example, as shown in Fig. 2, bearing includes the first deep groove ball bearing 3 set gradually, 4 and of thrust ball bearing
Second deep groove ball bearing 5, wherein the first deep groove ball bearing 3 and the second deep groove ball bearing 5 are respectively arranged at the two sides of pin shaft 2, push away
Power ball bearing 4 is set between the first deep groove ball bearing 3 and the pin shaft shaft shoulder 21 and 4 side of thrust ball bearing (thrust ball axis
Hold 4 internal diameter be equal to 2 outer diameter of pin shaft side) be bonded with the pin shaft shaft shoulder 21.
Pass through the first deep groove ball bearing 3, thrust ball bearing 4 and the second deep groove ball bearing 5 set gradually on pin shaft 2, energy
It enough bears blade bring centrifugal force well and installation and removal is time saving and energy saving.Wherein, thrust ball bearing 4 is mainly used for bearing
Blade bring centrifugal force, thrust load can be born when blade runs at high speed, and in displacement movement, main paddle paddle folder 1 is around pin shaft 2
When reciprocating rotary, the first deep groove ball bearing 3 and the second deep groove ball bearing 5 provide necessary support force, and main paddle gasket 16 fits in
Main paddle paddle presss from both sides the setting of 1 inner wall, inconvenient to solve the form installation that main paddle folder existing in the prior art is connect with main hub, no
The function of can be realized fast quick-detach, the bothersome laborious technical problem when installing blade, providing one kind can not only meet
The intensity requirement of the needs of main paddle folder, additionally it is possible to realize and the paddle clamping structure of the Fast Installation of main hub and replacement, satisfaction use
Demand.
Optionally embodiment, the first deep groove ball bearing 3 and the second deep groove ball bearing 5 are the deep-groove ball of different model
Bearing, using the deep groove ball bearing of different model, good supporting role can not only be played and during installation and
More convenient when disassembly, the first deep groove ball bearing 3 and the second deep groove ball bearing 5 select existing depth on the market according to production needs
The model of ditch ball bearing, the first deep groove ball bearing 3 and the second deep groove ball bearing 5 is not specifically limited herein.
Optionally embodiment, further includes the lead lag hinge 6 being set in main paddle paddle folder 1, and lead lag hinge 6 is located at pin shaft 2
Short end side, pass through setting lead lag hinge 6 and binding sequence setting the first deep groove ball bearing 3, thrust ball bearing 4 and second
Deep groove ball bearing 5 further increases unmanned helicopter stability in use and ride comfort, safer.
Optionally embodiment, further includes the first gasket 7 and the second gasket 8, and the first gasket 7 is set to the second zanjon
Between ball bearing 5 and the shaft shoulder 21, the second gasket 8 is set between lead lag hinge 6 and the second deep groove ball bearing 5, the first gasket 7 and
Two gaskets 8 prevent the Internal and external cycle of the first deep groove ball bearing 5 from contacting simultaneously with the shaft shoulder 21 and lead lag hinge 6 simultaneously, play isolation zanjon
The effect of ball Internal and external cycle guarantees that this main paddle clamping structure when in use stablize by performance, securely and reliably.
Optionally embodiment, lead lag hinge 6 is fixed using soket head cap screw 9, soket head cap screw 9 and lead lag hinge 6 it
Between be successively arranged spring washer 10 and the first plain cushion 11, wherein spring washer 10 be arranged in soket head cap screw 9 nut and the first plain cushion 11 it
Between, it is low in cost, easy for installation using spring washer 10, and spring washer 10 is suitable for assembling and disassembling frequent position and therefore both facilitated
It realizes fast quick-detach, and can ensure that the service performance of device and improve service life.Being had using the first plain cushion 11 prevents pine
De-, dispersion pressure effect, can effectively eliminate and eliminate spring washer 10 when unloading soket head cap screw 9 to main paddle clamping structure table
The damage in face.
Optionally embodiment, further includes main paddle gasket 16, and the inner wall that main paddle gasket 16 fits in main paddle paddle folder 1 is set
It sets, main paddle gasket 16 can be perfectly bonded with main paddle paddle folder 1, and have the function of limit, enable it when installing blade
Enough enhanced conveniences are time saving.
Optionally embodiment, main paddle paddle, which presss from both sides to be additionally provided with to fill on 1, plays screw 12, and beats the anti-of screw fit with plug
Loose nut 13, specifically, the outer wall of main paddle paddle folder 1 are equipped with main paddle copper sheathing 14, and during installation, main paddle copper sheathing 14 is installed to
In the mounting hole of main paddle paddle folder 1, main paddle gasket 16 is fitted in the inside of main paddle paddle folder 1, plug plays screw 12 across main paddle copper sheathing
14, screw 12 is played with plug and fixes main paddle gasket 16, and is fastened with 13 band of stop nut.And plug beats the nut of screw 12
The second plain cushion 15 is equipped between main paddle copper sheathing 14, between stop nut 13 and main paddle copper sheathing 14, it is ensured that installation is more firm.
Optionally embodiment, main paddle paddle folder 1 use aviation aluminium, and main paddle paddle folder 1 must can not as unmanned helicopter
Few component has higher requirement to intensity, hardness, toughness, fatigue resistance, plasticity etc., and aircraft aluminum matter is excellent because having
Plasticity, structure can be made beautiful, and there is good intensity, hardness, toughness, fatigue resistance, and in the premise for meeting intensity
Under, keep the quality of main paddle paddle folder 1 lighter, thus be the preferred material of main paddle paddle folder 1 in main paddle clamping structure.
Optionally embodiment, pin shaft 2 use titanium alloy material, main load of the pin shaft 2 as main paddle paddle folder 1
Part, should structural strength, rigidity and in terms of meet the requirements, the production material using titanium alloy material as pin shaft 2
Material can be very good the use demand for meeting main paddle folder, and not only intensity is high but also light weight for titanium alloy material, and has excellent
Corrosion resistance and heat resistance, be the preferred material of pin shaft 2 in main paddle clamping structure.
Fig. 3 is the configuration schematic diagram of the main paddle clamping structure of the present embodiment, as shown in figure 3, the main paddle of the present embodiment presss from both sides knot
The installation process of structure includes the following steps: that the half press machine that the internal diameter of thrust ball bearing 4 is greater than to 2 outer diameter of pin shaft is stable
It is pressed into main paddle paddle folder 1；The half that the internal diameter of thrust ball bearing 4 is equal to 2 outer diameter of pin shaft is smoothly pressed onto pin shaft 2 with press machine
On；At the short end for the pin shaft 2 that first gasket 7 is set in；Second deep groove ball bearing 5 is smoothly pressed onto pin shaft 2 with press machine
Short end side.
Above-mentioned mounted pin shaft 2 is smoothly installed in main paddle paddle folder 1 with press machine；First deep groove ball bearing 3 is used
Press machine is smoothly installed in above-mentioned mounted main paddle paddle folder 1；Second gasket 8 is fitted on the second deep groove ball bearing 5；
Lead lag hinge 6 is fitted on the second gasket 8；Soket head cap screw 9 is stained with screw thread glue, and lead lag hinge 6 is fixed；
Main paddle copper sheathing 14 is installed in the mounting hole of main paddle paddle folder 1；Main paddle gasket 16 is fitted in main paddle paddle folder 1
Side；Played screw 12 with plug and fixed main paddle gasket 16, and use stop nut 13, with tight, this main paddle clamping structure installs,
During disassembly, stop nut 13 is unclamped, fast quick-detach can be completed by the inverted order of above-mentioned steps, can be realized and main paddle
The Fast Installation and replacement of hub, to satisfy the use demand.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of main paddle clamping structure characterized by comprising
Main paddle paddle folder；
Pin shaft: it is set in the main paddle paddle folder；
Bearing: being set on the pin shaft, and the bearing includes the first deep groove ball bearing set gradually, thrust ball bearing and
Two deep groove ball bearings, wherein first deep groove ball bearing and second deep groove ball bearing are respectively arranged at the pin shaft
Two sides, thrust ball bearing is set between the first deep groove ball bearing and the pin shaft shaft shoulder, and the side of thrust ball bearing and pin
The fitting of the axis shaft shoulder.
2. main paddle clamping structure according to claim 1, it is characterised in that: first deep groove ball bearing and described second is deeply
Ditch ball bearing is the deep groove ball bearing of different model.
3. main paddle clamping structure according to claim 1 or 2, it is characterised in that: further include being set in the main paddle paddle folder
Lead lag hinge, the lead lag hinge is located at pin shaft short end side.
4. main paddle clamping structure according to claim 3, it is characterised in that: it further include the first gasket and the second gasket, it is described
First gasket is set between second deep groove ball bearing and the shaft shoulder, second gasket be set to the lead lag hinge with
Between second deep groove ball bearing.
5. main paddle clamping structure according to claim 3, it is characterised in that: the lead lag hinge is fixed using soket head cap screw,
Spring washer and the first plain cushion are successively arranged between the soket head cap screw and the lead lag hinge, wherein the spring washer is arranged described
Between the nut of soket head cap screw and first plain cushion.
6. main paddle clamping structure according to claim 1, it is characterised in that: it further include main paddle gasket, the main paddle gasket patch
Together in the main paddle paddle folder inner wall setting.
7. main paddle clamping structure according to claim 1, it is characterised in that: plug, which is additionally provided with, on the main paddle paddle folder plays screw,
And the stop nut of screw fit is beaten with the plug.
8. main paddle clamping structure according to claim 7, it is characterised in that: the outer wall of the main paddle paddle folder is equipped with main paddle copper
Set, the plug plays screw across the main paddle copper sheathing, and the plug is beaten between the nut of screw and the main paddle copper sheathing, is described anti-
The second plain cushion is equipped between loose nut and the main paddle copper sheathing.
9. main paddle clamping structure according to claim 1, it is characterised in that: the main paddle paddle folder uses aviation aluminium.
10. main paddle clamping structure according to claim 1, it is characterised in that: the pin shaft uses titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821664043.XU CN208947600U (en) | 2018-10-12 | 2018-10-12 | A kind of main paddle clamping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821664043.XU CN208947600U (en) | 2018-10-12 | 2018-10-12 | A kind of main paddle clamping structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208947600U true CN208947600U (en) | 2019-06-07 |
Family
ID=66741418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821664043.XU Active CN208947600U (en) | 2018-10-12 | 2018-10-12 | A kind of main paddle clamping structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208947600U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279010A (en) * | 2018-10-12 | 2019-01-29 | 必扬星环（北京）航空科技有限公司 | A kind of main paddle clamping structure |
| CN113501128A (en) * | 2021-09-10 | 2021-10-15 | 北京中航智科技有限公司 | Unmanned helicopter main rotor hub and unmanned helicopter |
-
2018
- 2018-10-12 CN CN201821664043.XU patent/CN208947600U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279010A (en) * | 2018-10-12 | 2019-01-29 | 必扬星环（北京）航空科技有限公司 | A kind of main paddle clamping structure |
| CN113501128A (en) * | 2021-09-10 | 2021-10-15 | 北京中航智科技有限公司 | Unmanned helicopter main rotor hub and unmanned helicopter |
| CN113501128B (en) * | 2021-09-10 | 2022-02-25 | 北京中航智科技有限公司 | Unmanned helicopter main rotor hub and unmanned helicopter |
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