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
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- 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
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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 middle-size and small-size depopulated helicopter and makes field, particularly a kind of middle-size and small-size depopulated helicopter propeller hub assembly.
Background technology
The common tapering of lifting airscrew will rotate each sheet blade exactly in same centrum.The common tapering of lifting airscrew directly affects the kinetic balance of complete machine, thereby affects the level of vibration of helicopter.Co-conicity of rotor wing of helicopter is adjusted to such an extent that incorrect meeting directly affects Helicopter flight performance, and causes certain potential safety hazard to helicopter flight.
Existing middle-size and small-size depopulated helicopter adopts the fewer of taper mutation propeller hub structure, and blade common tapering problem in the course of the work all is to utilize the modification of blade to realize, can make like this blade enter in advance fatigue stage, affects the service life of blade.In addition, the propeller hub that existing middle-size and small-size depopulated helicopter uses does not have the seesaw structure, like this to considerable influence is also arranged in service life of propeller hub.
The utility model content
The technical problems to be solved in the utility model provides a kind of middle-size and small-size depopulated helicopter propeller hub assembly, adopt propeller hub assembly provided by the utility model, solved on the middle-size and small-size depopulated helicopter because utilizing the blade modification to realize that tapering causes blade affected problem in service life altogether.
For solving the problems of the technologies described above, the utility model provides a kind of middle-size and small-size depopulated helicopter propeller hub assembly, comprise propeller hub, propeller hub center shaft, oar clamp assembly and be used for the limiting component of restriction oar clamp assembly hunting range, described limiting component is fixedly connected on the described propeller hub, described propeller hub is connected with described propeller hub center shaft, and described oar clamp assembly and described propeller hub are hinged.
Preferably, be provided with between described propeller hub and the described propeller hub center shaft and wave bearing, described propeller hub is captiveed joint with the described bearing of waving, and the described bearing of waving is captiveed joint with described propeller hub center shaft.
Preferential, described limiting component is position-limited lever, described position-limited lever is positioned at the root of described oar clamp assembly.
Preferably, be fixedly connected with pendulum bearing on the described oar clamp assembly, be fixedly connected with oscillating axle on the described propeller hub, described pendulum bearing is captiveed joint with described oscillating axle.
Middle-size and small-size depopulated helicopter propeller hub assembly provided by the utility model, compared with prior art the oar clamp assembly is hinged on the propeller hub, the oar clamp assembly can swing centered by the oscillating axle on the propeller hub, realized blade taper mutation in the course of the work, reduce the flexure stress that blade bears in the taper mutation process, improved the work life of blade; Be connected with between propeller hub and the propeller hub center shaft and wave bearing, propeller hub can swing as seesaw centered by the propeller hub center shaft, has heightened the work life of propeller hub.
Description of drawings
Fig. 1 is the structural representation that the middle-size and small-size depopulated helicopter of the utility model is used propeller hub;
Fig. 2 is A-A view of the present utility model.
Wherein,
1, propeller hub; 2, wave bearing; 3, propeller hub center shaft; 4, oar clamp assembly;
5, position-limited lever; 6, oscillating axle; 7, pendulum bearing.
The specific embodiment
In order to make those skilled in the art person understand better the utility model scheme, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, a kind of middle-size and small-size depopulated helicopter propeller hub assembly of the utility model, comprise propeller hub 1, propeller hub 1 is provided with the axis hole that passes for propeller hub center shaft 3, be fixedly connected with between propeller hub 1 and the propeller hub center shaft 3 and wave bearing 2, propeller hub 1 can swing centered by propeller hub center shaft 3, realizes the seesaw structure, the strained condition of rotor when handling is greatly improved, improves the service life of propeller hub 1.Be respectively equipped with for the cavity that oar clamp assembly 4 is installed at the two ends of propeller hub 1, be fixedly connected with oscillating axle 6 in the cavity, root at oar clamp assembly 4 is fixedly connected with pendulum bearing 7, pendulum bearing 7 covers are captiveed joint with oscillating axle 6, oar clamp assembly 4 can be swung around oscillating axle, thereby realize altogether tapering effect.For oar clamp assembly 4 is swung within the specific limits, at the two ends of propeller hub 1, the above and below of oar clamp assembly 4 is respectively equipped with position-limited lever 5.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. middle-size and small-size depopulated helicopter propeller hub assembly, the limiting component that it is characterized in that comprising propeller hub, propeller hub center shaft, oar clamp assembly and be used for limiting oar clamp assembly hunting range, described limiting component is fixedly connected on the described propeller hub, described propeller hub is connected with described propeller hub center shaft, and described oar clamp assembly and described propeller hub are hinged.
2. middle-size and small-size depopulated helicopter propeller hub assembly according to claim 1, it is characterized in that, be provided with between described propeller hub and the described propeller hub center shaft and wave bearing, described propeller hub is captiveed joint with the described bearing of waving, and the described bearing of waving is captiveed joint with described propeller hub center shaft.
3. middle-size and small-size depopulated helicopter propeller hub assembly according to claim 1 is characterized in that, described limiting component is position-limited lever, and described position-limited lever is positioned at the root of described oar clamp assembly.
4. middle-size and small-size depopulated helicopter propeller hub assembly according to claim 1 is characterized in that, is fixedly connected with pendulum bearing on the described oar clamp assembly, is fixedly connected with oscillating axle on the described propeller hub, and described pendulum bearing is captiveed joint with described oscillating axle.
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 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220493294 Expired - Fee Related CN202848024U (en) | 2012-09-25 | 2012-09-25 | Propeller hub assembly used for small and medium-sized unmanned helicopters |
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| 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 |
| 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 |
| 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 |
| 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 |
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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 |