CN202848024U - Propeller hub assembly used for small and medium-sized unmanned helicopters - Google Patents
Propeller hub assembly used for small and medium-sized unmanned helicopters Download PDFInfo
- Publication number
- CN202848024U CN202848024U CN 201220493294 CN201220493294U CN202848024U CN 202848024 U CN202848024 U CN 202848024U CN 201220493294 CN201220493294 CN 201220493294 CN 201220493294 U CN201220493294 U CN 201220493294U CN 202848024 U CN202848024 U CN 202848024U
- Authority
- CN
- China
- Prior art keywords
- hub
- propeller hub
- propeller
- small
- fixedly connected
- 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
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Toys (AREA)
Abstract
The utility model discloses a propeller hub assembly used for small and medium-sized unmanned helicopters. The propeller hub assembly comprises a propeller hub, a central shaft of the propeller hub, propeller clamping parts and limitation rods used for limiting the swing scopes of the propeller clamping parts, wherein the limiting parts are fixedly connected with the propeller hub, and are respectively positioned above and below the root part of the propeller clamping parts, the propeller hub is connected with the central shaft of the propeller hub, the propeller clamping parts are hinged with the propeller hub, a swing bearing is arranged between the propeller hub and the central shaft of the propeller hub, the propeller hub is fixedly connected with the swing bearing, and the swing bearing is fixedly connected with the central shaft of the propeller hub. According to the propeller hub assembly used for small and medium-sized unmanned helicopters provided by the utility model, the structure is simple, and the service life of the swing bearing and the service life of a propeller blade are prolonged.
Description
Technical Field
The utility model belongs to the unmanned helicopter of middle-size and small-size makes field, in particular to propeller hub subassembly for unmanned helicopter of middle-size and small-size.
Background
The co-taper of the helicopter rotor is to rotate each blade in the same vertebral body. The common taper of the helicopter rotor directly influences the dynamic balance of the whole helicopter, thereby influencing the vibration level of the helicopter. The improper adjustment of the common taper of the helicopter rotors can directly influence the flight performance of the helicopter and cause certain potential safety hazard for the flight of the helicopter.
The conventional small and medium-sized unmanned helicopter has fewer variable-taper propeller hub structures, and the problem of the common taper of the blades in the working process is realized by utilizing the deformation of the blades, so that the blades enter a fatigue stage in advance and the service life of the blades is influenced. In addition, the existing small and medium-sized unmanned helicopter has no seesaw structure, so that the service life of the hub is greatly influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a propeller hub subassembly for middle-size and small-size unmanned helicopter, adopt the utility model provides a propeller hub subassembly has solved on the middle-size and small-size unmanned helicopter and has realized leading to paddle life to receive the problem of influence because of utilizing the paddle variant.
In order to solve the technical problem, the utility model provides a middle-size and small-size unmanned helicopter is with propeller hub subassembly, include propeller hub, propeller hub center pin, oar clamp part and be used for restricting the spacing part of oar clamp part hunting range, spacing part fixed connection be in on the propeller hub, the propeller hub with propeller hub central pin connects, the oar clamp part with the propeller hub is articulated.
Preferably, a flapping bearing is arranged between the hub and the hub central shaft, the hub is fixedly connected with the flapping bearing, and the flapping bearing is fixedly connected with the hub central shaft.
Preferably, the limiting part is a limiting rod, and the limiting rod is positioned at the root part of the paddle clamp part.
Preferably, a swing bearing is fixedly connected to the paddle clamp component, a swing shaft is fixedly connected to the paddle hub, and the swing bearing is fixedly connected to the swing shaft.
Compared with the prior art, the propeller hub component for the small and medium-sized unmanned helicopter has the advantages that the propeller clamp component is hinged to the propeller hub, and can swing around the swinging shaft on the propeller hub, so that the variable taper of the blade in the working process is realized, the bending stress borne by the blade in the variable taper process is reduced, and the service life of the blade is prolonged; the flapping bearing is connected between the hub and the hub central shaft, and the hub can swing like a seesaw by taking the hub central shaft as a center, so that the service life of the hub is prolonged.
Drawings
Fig. 1 is a schematic structural view of a hub for a small and medium-sized unmanned helicopter according to the present invention;
fig. 2 is a view from a-a of the present invention.
Wherein,
1. a hub; 2. waving a bearing; 3. a hub central axis; 4. a paddle clip component;
5. a limiting rod; 6. a swing shaft; 7. and a swing bearing.
Detailed Description
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 and 2, the utility model relates to a hub subassembly for middle-size and small-size unmanned helicopter, including hub 1, be equipped with the shaft hole that supplies hub center pin 3 to pass on hub 1, fixedly connected with waves bearing 2 between hub 1 and the hub center pin 3, hub 1 can use hub center pin 3 to swing as the center, realizes the seesaw structure, has very big improvement to the stress state of rotor when handling, improves hub 1's life. Two ends of the propeller hub 1 are respectively provided with a cavity for installing the propeller clamping component 4, a swinging shaft 6 is fixedly connected in the cavity, the root part of the propeller clamping component 4 is fixedly connected with a swinging bearing 7, and the swinging bearing 7 is fixedly connected with the swinging shaft 6 in a sleeved mode, so that the propeller clamping component 4 can swing around the swinging shaft, and the co-taper effect is achieved. In order to enable the paddle clamp component 4 to swing within a certain range, limiting rods 5 are respectively arranged at the two ends of the paddle hub 1 and above and below the paddle clamp component 4.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The hub assembly for the small and medium-sized unmanned helicopters is characterized by comprising a hub, a hub central shaft, a blade clamp component and a limiting component for limiting the swing range of the blade clamp component, wherein the limiting component is fixedly connected to the hub, the hub is connected with the hub central shaft, and the blade clamp component is hinged to the hub.
2. The hub assembly of claim 1, wherein a flapping bearing is arranged between the hub and the hub central shaft, the hub is fixedly connected with the flapping bearing, and the flapping bearing is fixedly connected with the hub central shaft.
3. The hub assembly for small and medium sized unmanned helicopters according to claim 1, wherein the limiting component is a limiting rod, and the limiting rod is located at the root of the paddle clip component.
4. The hub assembly for the small and medium unmanned helicopters according to claim 1, wherein the paddle clamp component is fixedly connected with a swing bearing, the hub is fixedly connected with a swing shaft, and the swing bearing is fixedly connected with the swing shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220493294 CN202848024U (en) | 2012-09-25 | 2012-09-25 | Propeller hub assembly used for small and medium-sized unmanned helicopters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220493294 CN202848024U (en) | 2012-09-25 | 2012-09-25 | Propeller hub assembly used for small and medium-sized unmanned helicopters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202848024U true CN202848024U (en) | 2013-04-03 |
Family
ID=47979248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220493294 Expired - Fee Related CN202848024U (en) | 2012-09-25 | 2012-09-25 | Propeller hub assembly used for small and medium-sized unmanned helicopters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202848024U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344931A (en) * | 2013-08-05 | 2015-02-11 | 哈尔滨飞机工业集团有限责任公司 | Rotor head pulling and twisting strip type propeller hub for helicopter blade dynamic balance test table |
| CN106697279A (en) * | 2017-01-13 | 2017-05-24 | 必扬星环（北京）航空科技有限公司 | Flapping hinge structure with inboard bearing for small-size unmanned helicopter |
| CN106741887A (en) * | 2017-01-13 | 2017-05-31 | 必扬星环（北京）航空科技有限公司 | Many blade rotor header structures of external flapping hinge shock-absorbing sleeve |
| CN106741886A (en) * | 2017-01-13 | 2017-05-31 | 必扬星环（北京）航空科技有限公司 | For the rotor head assembly of depopulated helicopter |
| CN109484637A (en) * | 2018-12-24 | 2019-03-19 | 沈阳旋飞航空技术有限公司 | A kind of rotor pulp distance varying mechanism of the dynamic unmanned plane of improved oil |
-
2012
- 2012-09-25 CN CN 201220493294 patent/CN202848024U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344931A (en) * | 2013-08-05 | 2015-02-11 | 哈尔滨飞机工业集团有限责任公司 | Rotor head pulling and twisting strip type propeller hub for helicopter blade dynamic balance test table |
| CN106697279A (en) * | 2017-01-13 | 2017-05-24 | 必扬星环（北京）航空科技有限公司 | Flapping hinge structure with inboard bearing for small-size unmanned helicopter |
| CN106741887A (en) * | 2017-01-13 | 2017-05-31 | 必扬星环（北京）航空科技有限公司 | Many blade rotor header structures of external flapping hinge shock-absorbing sleeve |
| CN106741886A (en) * | 2017-01-13 | 2017-05-31 | 必扬星环（北京）航空科技有限公司 | For the rotor head assembly of depopulated helicopter |
| CN106697279B (en) * | 2017-01-13 | 2023-12-26 | 重庆星环航空科技有限公司 | Swing hinge structure with built-in bearing for small unmanned helicopter |
| CN106741887B (en) * | 2017-01-13 | 2023-12-26 | 重庆星环航空科技有限公司 | Multi-blade rotor head structure with external swing hinge damping sleeve |
| CN106741886B (en) * | 2017-01-13 | 2024-02-23 | 重庆星环航空科技有限公司 | Rotor head assembly for unmanned helicopter |
| CN109484637A (en) * | 2018-12-24 | 2019-03-19 | 沈阳旋飞航空技术有限公司 | A kind of rotor pulp distance varying mechanism of the dynamic unmanned plane of improved oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202848024U (en) | Propeller hub assembly used for small and medium-sized unmanned helicopters | |
| JP5078883B2 (en) | Rotor blade of high speed rotorcraft | |
| CN103373467B (en) | Blade attachment for helicopter bearingless rotor | |
| CA2533426A1 (en) | Vertical-axis wind turbine | |
| CN109533317B (en) | Rigid rotor blade root structure | |
| CN207554415U (en) | A kind of compressor impeller for aero-engine | |
| CN108945424B (en) | Rotor blade root structure | |
| KR20130098237A (en) | A rotor blade, a rotor, an aircraft, and a method | |
| CN101585413A (en) | Helicopter antitorque tail rotor blade | |
| CN107719657A (en) | A kind of rotor wing unmanned aerial vehicle of ducted fan four | |
| CA2650355C (en) | Yoke with notched arm roots | |
| CN109250071A (en) | A kind of novel propeller hub of intersection DCB Specimen unmanned helicopter | |
| CN204755199U (en) | Hydraulic pressure becomes oar bearing assembly | |
| CN210479019U (en) | Blade, propeller and aircraft | |
| CN204175644U (en) | Axial-flow windwheel and the axial-flow blower with it | |
| US20150300316A1 (en) | Rotor blade for a wind turbine | |
| CN203558202U (en) | Propeller and aircraft with propeller | |
| EP3434588A1 (en) | Rotor hub assembly with universal joint | |
| CN112265636B (en) | There is oar hub device that waves radial hinge axle of restraint and has its helicopter | |
| CN207670649U (en) | Culvert type large-caliber spiral paddle | |
| US10814971B2 (en) | Tail rotor housing | |
| CN108454846B (en) | Cross axle hinged propeller hub structure | |
| CN207450245U (en) | Fluting culvert type plume rotor craft | |
| CN209290679U (en) | Multi-rotor unmanned aerial vehicle | |
| CN211287904U (en) | RAT turbine rated speed adjusting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150924 Address after: 410000 Hunan province Changsha city streets nanteau NANTUO Ridge Community carton factory Patentee after: HUNAN KUTA TECHNOLOGY Co.,Ltd. Address before: 410114, Tianxin Road, Tianxin District, Hunan, Changsha, No. 114, 30 building, 5 door, 52 room Patentee before: Li Jun |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20210925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |