CN204193505U - A kind of propeller hub - Google Patents
A kind of propeller hub Download PDFInfo
- Publication number
- CN204193505U CN204193505U CN201420674276.3U CN201420674276U CN204193505U CN 204193505 U CN204193505 U CN 204193505U CN 201420674276 U CN201420674276 U CN 201420674276U CN 204193505 U CN204193505 U CN 204193505U
- Authority
- CN
- China
- Prior art keywords
- propeller hub
- shaft coupling
- elastic card
- model
- card claw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of propeller hub, for model airplane screw, this propeller hub comprises a propeller hub and a shaft coupling, in this propeller hub, elastic card claw is set, the cylindrical of shaft coupling is stepped form vertically, this shaft coupling to be inserted in propeller hub and to be connected with propeller hub by elastic card claw, and the end face that this propeller hub and shaft coupling contact and axial angle are less than 90 degree.When with ground or other object collisions, this propeller hub can make propeller hub and shaft coupling be separated from driving connection status, protection screw and model airplane.
Description
Technical field
The utility model relates to a kind of propeller hub, and this propeller hub comprises a propeller hub and a shaft coupling, for model airplane screw.
Background technology
Model airplane is equipped with provides aerodynamic screw, this model airplane easily produces the collision on pre-object or ground awing, when colliding, the rotational resistance that screw is subject to increases instantaneously, and power set are still connected with screw and drive screw to rotate, not only can damage screw, and the drive system of model airplane can be damaged.
Summary of the invention
The purpose of this utility model is to provide a kind of propeller hub, when the rotational resistance that can be subject at screw increases instantaneously, throws off the connection of screw and drive system, the dynamical system of protection screw and model airplane.
In the utility model, this propeller hub comprises a propeller hub and a shaft coupling, arranges elastic card claw in this propeller hub, and the cylindrical of shaft coupling is stepped form vertically, and this shaft coupling to be inserted in propeller hub and to be connected with propeller hub by elastic card claw.
In the utility model, arrange two or more elastic card claws in propeller hub, this elastic card claw extends towards propeller hub axle center in propeller hub.
In the utility model, the end face that this propeller hub and shaft coupling contact and axial angle are less than 90 degree.
In the utility model, this elastic card claw is axially extending to propeller hub axle center obliquely from propeller hub inner face.
In the utility model, this shaft coupling has the projection corresponding with elastic card claw quantity and position, and leans with elastic card claw free end, makes propeller hub when driving condition, and the elastic card claw that rotates through of shaft coupling drives propeller hub.
In use, shaft coupling is coaxially connected with model airplane line shaft, and model airplane power drives propeller hub by shaft coupling by elastic card claw, thus drives propeller rotational.
The utility model has the advantages that; when with ground or other object collisions; the peripheral force that propeller hub is subject to increases, and make the power increase in relative rotation of propeller hub and shaft coupling, this makes every effort to overcome the contact force taking elastic card claw and projection; propeller hub and shaft coupling are relatively rotated; the respective inclined-plane that propeller hub and shaft coupling contact relatively rotates, this wheel hub extrapolated, and propeller hub and shaft coupling are separated from driving connection status; protection screw, and model airplane.
Accompanying drawing explanation
Fig. 1 is that the axle of propeller hub of the present utility model cuts open structural representation;
Fig. 2 is the structural representation front view of shaft coupling of the present utility model.
Detailed description of the invention
In the utility model, this propeller hub comprises a propeller hub 1 and a shaft coupling 4,4 elastic card claws 3 are set in this propeller hub 1, this elastic card claw 2 extends towards propeller hub axle center in propeller hub, the cylindrical of this shaft coupling 4 is stepped form vertically, and this shaft coupling 4 to be inserted in propeller hub 1 and to be connected with propeller hub 1 by elastic card claw 2.
When this shaft coupling 4 inserts in propeller hub 1, the end 8 of this shaft coupling 4, through this propeller hub 1, makes this propeller hub 1 arrive the middle part 6 of this shaft coupling 4.Now, the free end of this elastic card claw 2 is resisted against the middle part 6 of this shaft coupling 4 on the surface, and contacts in the circumferential with the projection 7 of this shaft coupling 4, and now the inclined end face 3 of this propeller hub 1 and the inclined end face 5 of shaft coupling 4 contact.
At work, shaft coupling 4 is coaxially connected with model airplane line shaft, and model airplane power drives propeller hub 1 by shaft coupling 4 by elastic card claw 2, thus drives propeller rotational.
When with ground or other object collisions; the peripheral force that propeller hub 1 is subject to increases; make the power increase in relative rotation of propeller hub 1 and shaft coupling 4; this makes every effort to overcome the contact force taking elastic card claw 2 and projection 7; propeller hub 1 and shaft coupling 4 are relatively rotated, and the respective inclined-plane 3,5 that propeller hub 1 and shaft coupling 4 contact relatively rotates, this wheel hub 1 extrapolated; propeller hub 1 and shaft coupling 4 are separated from driving connection status, thus protection screw and model airplane.
Claims (3)
1. a propeller hub, it is characterized in that comprising a propeller hub and a shaft coupling, arrange two or more elastic card claws in this propeller hub, the cylindrical of shaft coupling is stepped form vertically, and the end face that this propeller hub and shaft coupling contact and axial angle are less than 90 degree.
2. propeller hub according to claim 1, is characterized in that this elastic card claw is axially extending to propeller hub axle center obliquely from propeller hub inner face.
3. propeller hub according to claim 1, is characterized in that this shaft coupling has the projection corresponding with elastic card claw quantity and position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674276.3U CN204193505U (en) | 2014-11-13 | 2014-11-13 | A kind of propeller hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674276.3U CN204193505U (en) | 2014-11-13 | 2014-11-13 | A kind of propeller hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204193505U true CN204193505U (en) | 2015-03-11 |
Family
ID=52651506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420674276.3U Expired - Fee Related CN204193505U (en) | 2014-11-13 | 2014-11-13 | A kind of propeller hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204193505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107868925A (en) * | 2017-10-20 | 2018-04-03 | 武汉航达航空科技发展有限公司 | Whirlpool oar properller propeller hub sealing surface depth repair method |
-
2014
- 2014-11-13 CN CN201420674276.3U patent/CN204193505U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107868925A (en) * | 2017-10-20 | 2018-04-03 | 武汉航达航空科技发展有限公司 | Whirlpool oar properller propeller hub sealing surface depth repair method |
| CN107868925B (en) * | 2017-10-20 | 2019-09-24 | 武汉航达航空科技发展有限公司 | Whirlpool paddle properller propeller hub sealing surface maintenance conditions method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Zichong Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Zichong Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20171113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |