CN110304234B - Unmanned helicopter tail boom folding device - Google Patents
Unmanned helicopter tail boom folding device Download PDFInfo
- Publication number
- CN110304234B CN110304234B CN201910269024.XA CN201910269024A CN110304234B CN 110304234 B CN110304234 B CN 110304234B CN 201910269024 A CN201910269024 A CN 201910269024A CN 110304234 B CN110304234 B CN 110304234B
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- unmanned helicopter
- transmission shaft
- tail
- folding
- tail transmission
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- 230000005540 biological transmission Effects 0.000 claims abstract description 66
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/30—Parts of fuselage relatively movable to reduce overall dimensions of aircraft
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Toys (AREA)
Abstract
The invention provides a folding device for a tail beam of an unmanned helicopter, which is characterized by comprising a front section of a tail transmission shaft of the unmanned helicopter, a driving fluted disc, a front section of a tail transmission shaft sleeve of the unmanned helicopter, a first folding anchor ear, a rear section of the tail transmission shaft of the unmanned helicopter, a driven fluted disc, a rear section of the tail transmission shaft sleeve of the unmanned helicopter and a second folding anchor ear. The invention has the beneficial effects that: the invention has simple mechanical structure, convenient use and low cost, can effectively reduce the size of the unmanned helicopter in a storage state, is convenient for the storage and transportation of the small and medium unmanned helicopter, and is easy to popularize.
Description
Technical Field
The invention relates to the technical field of unmanned helicopters, in particular to a tail beam folding device of an unmanned helicopter.
Background
The purpose of folding the tail beam of the helicopter is to reduce the overall size of the whole helicopter and effectively reduce the storage and transportation space, which has important significance for the application of the unmanned helicopter on the ship. At present, an unmanned helicopter with a folded tail beam does not appear in China, but for a certain type of unmanned helicopter, in order to reduce the area of a hangar, an electromagnetic technology is adopted to fold the tail oblique beam of the unmanned helicopter, and for the unmanned helicopter, the technical cost is high, the difficulty is high, and an easy-to-realize mechanical folding scheme of the tail beam of the helicopter is urgently needed, so that the unmanned helicopter is convenient to store and transport.
Disclosure of Invention
In order to comprehensively solve the problems, particularly the defects existing in the prior art, the invention provides the tail boom folding device of the unmanned helicopter, which can comprehensively solve the problems.
In order to achieve the above purpose, the invention adopts the following technical means:
the utility model provides an unmanned helicopter tail beam folding device, includes unmanned helicopter tail transmission shaft anterior segment, initiative fluted disc, unmanned helicopter tail transmission shaft anterior segment, folding staple bolt one, unmanned helicopter tail transmission shaft posterior segment, driven fluted disc, unmanned helicopter tail transmission shaft posterior segment, folding staple bolt two, unmanned helicopter tail transmission shaft anterior segment one end cup joints in the initiative fluted disc and is connected with the initiative fluted disc, unmanned helicopter tail transmission shaft anterior segment lateral part cup joints in unmanned helicopter tail transmission shaft anterior segment and is connected with unmanned helicopter tail transmission shaft anterior segment, folding staple bolt one passes through the screw and is connected with nearby fastening of folding department of unmanned helicopter tail transmission shaft anterior segment;
one end of the rear section of the tail transmission shaft of the unmanned helicopter is sleeved in the driven fluted disc and connected with the driven fluted disc, the side part of the rear section of the tail transmission shaft of the unmanned helicopter is sleeved in the rear section of the tail transmission shaft sleeve of the unmanned helicopter and connected with the rear section of the tail transmission shaft sleeve of the unmanned helicopter, and the folding hoop II is fixedly connected with the vicinity of a folding position of the rear section of the tail transmission shaft sleeve of the unmanned helicopter through a screw;
the driving fluted disc is connected with the driven fluted disc in a transmission way, and the first lug of the folding hoop is connected with the second lug of the folding hoop through a bolt.
Furthermore, the front ends of the front section of the tail transmission shaft of the unmanned helicopter and the rear section of the tail transmission shaft of the unmanned helicopter are conical surfaces, the conical surface fit of the front section of the tail transmission shaft of the unmanned helicopter is connected with the driving fluted disc, and the conical surface fit of the rear section of the tail transmission shaft of the unmanned helicopter is connected with the driven fluted disc.
Further, threads are arranged on one side of the small end of the conical surface.
Further, the front section of the tail transmission shaft of the unmanned helicopter is tightly pressed with the driving fluted disc through a locking nut, and the rear section of the tail transmission shaft of the unmanned helicopter is tightly pressed with the driven fluted disc through the locking nut.
Further, one side bolt of the first lug of the folding anchor ear and the second lug of the folding anchor ear which are connected through bolts is used as a rotating shaft when the tail boom is folded.
Further, a buffer rubber pad is arranged between the first flange plate of the folding hoop and the second flange plate of the folding hoop, and the buffer rubber pad is fixed by the flange plates at two sides through four bolts.
The invention has the beneficial effects that: the invention has simple mechanical structure, convenient use and low cost, can effectively reduce the size of the unmanned helicopter in a storage state, is convenient for the storage and transportation of the small and medium unmanned helicopter, and is easy to popularize.
Drawings
FIG. 1 is a partially exploded schematic view of the front section of the tail drive shaft of the unmanned helicopter and the rear section of the tail drive shaft of the unmanned helicopter of the present invention;
FIG. 2 is a schematic view of a portion of the front section of the tail drive shaft of the unmanned helicopter of the present invention;
FIG. 3 is a schematic view of the front section of the tail transmission sleeve and a first folding anchor ear of the unmanned helicopter of the present invention;
FIG. 4 is an exploded schematic view of the front section of the tail transmission sleeve and the first folding anchor ear of the unmanned helicopter of the present invention;
FIG. 5 is a schematic view of the rear section of the tail transmission sleeve and a second folding anchor ear of the unmanned helicopter of the present invention;
FIG. 6 is an exploded schematic view of the rear section of the tail transmission sleeve and a second folding anchor ear of the unmanned helicopter of the present invention;
FIG. 7 is a schematic diagram of the combined structure of the present invention;
FIG. 8 is a schematic view of the structure of FIG. 7A in accordance with the present invention;
FIG. 9 is an exploded view of the structure of FIG. 7A in accordance with the present invention;
fig. 10 is a schematic view of the folded structure of the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention provides an unmanned helicopter tail beam folding device, which comprises an unmanned helicopter tail transmission shaft front section 1, a driving fluted disc 2, an unmanned helicopter tail transmission shaft front section 3, a folding hoop I4, an unmanned helicopter tail transmission shaft rear section 5, a driven fluted disc 6, an unmanned helicopter tail transmission shaft rear section 7 and a folding hoop II 8, wherein the unmanned helicopter tail transmission shaft front section 1 is connected with the driving fluted disc 2 through the matching of a conical surface 9, meanwhile, a thread 10 is arranged at one side of the small end of the conical surface 9 at the front section part of the tail transmission shaft, and the unmanned helicopter tail transmission shaft front section 1 and the driving fluted disc 2 are tightly pressed through a locking nut 11; the rear section 5 of the tail transmission shaft of the unmanned helicopter is connected with the driven fluted disc 6 through the cooperation of the conical surface 9, meanwhile, threads 10 are arranged on one side of the small end of the conical surface 9 at the rear section part of the tail transmission shaft, and the rear section 5 of the tail transmission shaft of the unmanned helicopter is tightly pressed with the driven fluted disc 6 through a locking nut 11, as shown in figures 1-2;
the first folding hoop 4 is fixedly connected with the front section 3 of the tail transmission shaft sleeve of the unmanned helicopter near the folding position through a screw, as shown in figures 3 to 4;
the second folding hoop 8 is fixedly connected with the rear section 7 of the tail transmission shaft sleeve of the unmanned helicopter near the folding position through a screw, as shown in fig. 5 to 6;
the first folding anchor ear 4 lug and the second folding anchor ear 8 lug are connected through bolts, wherein a bolt on one side is used as a rotating shaft when the tail beam is folded;
there is a cushion rubber pad 12 between folding staple bolt one 4 ring flange and the folding staple bolt two 8 ring flanges, and cushion rubber pad 12 is fixed by both sides ring flange through four bolts, and this rubber pad has two functions: 1. the buffer function, the second sealing function and the third sealing function of the unmanned helicopter tail beam when the normal working state and the folding state are converted prevent foreign matters from entering the tail beam through the folding seam, as shown in fig. 7 to 9;
in a normal working state, the front section 1 of the tail transmission shaft of the unmanned helicopter drives the driving fluted disc 2 to rotate through tight fit of the conical surface 9, the driving fluted disc 2 drives the driven fluted disc 6 to rotate, the driven fluted disc 6 further drives the rear section 5 of the tail transmission shaft of the unmanned helicopter to rotate through tight fit of the conical surface 9, and finally the tail rotor is driven, as shown in fig. 7;
when folding, dismantle the bolt between folding staple bolt one 4 and folding staple bolt two 8 on tail rotor homolateral direction and the bolt between two staple bolt ring flanges, unmanned helicopter tail transmission shaft rear section 5 can rotate around another bolt between the folding staple bolt this moment, and the initiative fluted disc 2 of meshing before and driven fluted disc 6 are disengaged, and unmanned helicopter tail transmission shaft rear section 5 can fold the contralateral direction of preceding tail rotor, as shown in fig. 10.
The invention is illustrated by way of example and not by way of limitation. Other variations or modifications of the above description will be apparent to those of ordinary skill in the art, and it is not necessary or exhaustive of all embodiments, and obvious variations or modifications are contemplated as falling within the scope of the invention.
Claims (5)
1. The folding device for the tail beam of the unmanned helicopter is characterized by comprising a front section of a tail transmission shaft of the unmanned helicopter, a driving fluted disc, a front section of a tail transmission shaft sleeve of the unmanned helicopter, a first folding hoop, a rear section of the tail transmission shaft of the unmanned helicopter, a driven fluted disc, a rear section of the tail transmission shaft sleeve of the unmanned helicopter and a second folding hoop, wherein one end of the front section of the tail transmission shaft of the unmanned helicopter is sleeved in the driving fluted disc and connected with the driving fluted disc, the side part of the front section of the tail transmission shaft of the unmanned helicopter is sleeved in the front section of the tail transmission shaft sleeve of the unmanned helicopter and connected with the front section of the tail transmission shaft sleeve of the unmanned helicopter, and the first folding hoop is fixedly connected with the vicinity of a folding position of the front section of the tail transmission shaft sleeve of the unmanned helicopter through a screw; one end of the rear section of the tail transmission shaft of the unmanned helicopter is sleeved in the driven fluted disc and connected with the driven fluted disc, the side part of the rear section of the tail transmission shaft of the unmanned helicopter is sleeved in the rear section of the tail transmission shaft sleeve of the unmanned helicopter and connected with the rear section of the tail transmission shaft sleeve of the unmanned helicopter, and the folding hoop II is fixedly connected with the vicinity of a folding position of the rear section of the tail transmission shaft sleeve of the unmanned helicopter through a screw; the driving fluted disc is in transmission connection with the driven fluted disc, and the first lug of the folding hoop is connected with the second lug of the folding hoop through a bolt; one side bolt of the first lug of the folding anchor ear and the second lug of the folding anchor ear which are connected through bolts is used as a rotating shaft when the tail beam is folded.
2. The unmanned helicopter tail boom folding device according to claim 1, wherein the front ends of the front section of the unmanned helicopter tail transmission shaft and the rear section of the unmanned helicopter tail transmission shaft are conical surfaces, the conical surface fit of the front section of the unmanned helicopter tail transmission shaft is connected with the driving fluted disc, and the conical surface fit of the rear section of the unmanned helicopter tail transmission shaft is connected with the driven fluted disc.
3. The unmanned helicopter tail boom folding apparatus of claim 2, wherein the tapered face small end side is provided with threads.
4. The unmanned helicopter tail boom folding device of claim 1, wherein the front section of the unmanned helicopter tail transmission shaft is compressed with the driving fluted disc through a lock nut, and the rear section of the unmanned helicopter tail transmission shaft is compressed with the driven fluted disc through a lock nut.
5. The unmanned helicopter tail boom folding device of claim 1, wherein a buffer rubber pad is arranged between the first folding hoop flange and the second folding hoop flange, and the buffer rubber pad is fixed by the flange plates at two sides through four bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910269024.XA CN110304234B (en) | 2019-04-04 | 2019-04-04 | Unmanned helicopter tail boom folding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910269024.XA CN110304234B (en) | 2019-04-04 | 2019-04-04 | Unmanned helicopter tail boom folding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110304234A CN110304234A (en) | 2019-10-08 |
| CN110304234B true CN110304234B (en) | 2023-11-24 |
Family
ID=68074388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910269024.XA Active CN110304234B (en) | 2019-04-04 | 2019-04-04 | Unmanned helicopter tail boom folding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110304234B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921938A (en) * | 1973-08-28 | 1975-11-25 | Westland Aircraft Ltd | Helicopters |
| KR100692237B1 (en) * | 2006-08-14 | 2007-03-12 | 원신 스카이텍 주식회사 | Folding type tail boom |
| CN201494625U (en) * | 2009-09-17 | 2010-06-02 | 中国航空动力机械研究所 | Foldable-type oblique-tail transmission shaft device |
| CN105059538A (en) * | 2015-07-31 | 2015-11-18 | 山西微风无人系统科技有限公司 | Modularized tail transmission system of unmanned helicopter |
| CN107310717A (en) * | 2017-07-03 | 2017-11-03 | 雷虎飞行器有限公司 | Depopulated helicopter |
| CN206984306U (en) * | 2017-05-18 | 2018-02-09 | 青岛锐擎航空科技有限公司 | A kind of empennage support of folding plant protection unmanned plane |
| CN209938933U (en) * | 2019-04-04 | 2020-01-14 | 浙江华奕航空科技有限公司 | Unmanned helicopter tail boom folding device |
-
2019
- 2019-04-04 CN CN201910269024.XA patent/CN110304234B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921938A (en) * | 1973-08-28 | 1975-11-25 | Westland Aircraft Ltd | Helicopters |
| KR100692237B1 (en) * | 2006-08-14 | 2007-03-12 | 원신 스카이텍 주식회사 | Folding type tail boom |
| CN201494625U (en) * | 2009-09-17 | 2010-06-02 | 中国航空动力机械研究所 | Foldable-type oblique-tail transmission shaft device |
| CN105059538A (en) * | 2015-07-31 | 2015-11-18 | 山西微风无人系统科技有限公司 | Modularized tail transmission system of unmanned helicopter |
| CN206984306U (en) * | 2017-05-18 | 2018-02-09 | 青岛锐擎航空科技有限公司 | A kind of empennage support of folding plant protection unmanned plane |
| CN107310717A (en) * | 2017-07-03 | 2017-11-03 | 雷虎飞行器有限公司 | Depopulated helicopter |
| CN209938933U (en) * | 2019-04-04 | 2020-01-14 | 浙江华奕航空科技有限公司 | Unmanned helicopter tail boom folding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110304234A (en) | 2019-10-08 |
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