CN101972548B - Convenient assembling and disassembling axis structure of coaxial double-paddle reversal model helicopter - Google Patents
Convenient assembling and disassembling axis structure of coaxial double-paddle reversal model helicopter Download PDFInfo
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- CN101972548B CN101972548B CN2010102770671A CN201010277067A CN101972548B CN 101972548 B CN101972548 B CN 101972548B CN 2010102770671 A CN2010102770671 A CN 2010102770671A CN 201010277067 A CN201010277067 A CN 201010277067A CN 101972548 B CN101972548 B CN 101972548B
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Abstract
The invention discloses a convenient assembling and disassembling axis structure of a coaxial double-paddle reversal model helicopter. The structure mainly consists of an inner shaft and an outer shaft; the outer shaft passes through an upper outer pipe sleeve, a lower rotor wing shaft head, a lower outer pipe sleeve, an outer shaft upper bearing, a frame and an outer shaft lower bearing in turn from top to bottom; two ends of the outer shaft are connected with an inner shaft bearing sleeve and an upper gear respectively; the inner shaft passes through an inner shaft upper bearing, an inner shaft bearing sleeve, the outer shaft, an inner shaft lower bearing, a lower gear and a lower gear lock sleeve in turn from top to bottom; the inner shaft is fixed by a lower gear lock sleeve screw; the outer shaft is a regular prism; and the lower rotor wing shaft head, the upper gear and the matched hole of the outer shaft form an equilateral polygon matched with the regular prism. The structure ensures synchronous rotation of the lower rotor wing shaft head and the outer shaft, saves an attached fastener, and improves the safety and reliability of operation; and the simplified structure is easier for assembly and disassembly, and is convenient for the juvenile to learn and master the knowledge of the model helicopter.
Description
Technical field
The present invention relates to model copter, particularly a kind of just dismounting axle center structure of coaxial twin-screw reversal helicopter model.
Background technology
The axle center structure (see figure 5) of existing traditional coaxial twin-screw reversal helicopter model comprise frame, outer shaft upper bearing (metal), outer shaft lower bearing, circular outer shaft, outer shaft lock tube, down the rotor spindle nose, down rotor spindle nose screw, inner shaft bearing cover, interior axle upper bearing (metal), interior axle, cog, interior axle lower bearing, lower gear, lower gear lock tube and lower gear lock tube screw.There is following shortcoming in this axle center structure:
1. assemble difficulty and non insurance
Because following rotor spindle nose endoporus and hollow outer shaft all are circular (seeing Fig. 6 to 8), both rotate synchronously needs to fix by following rotor spindle nose screw, so the assembly manipulation difficulty is bigger.At first, penetrate down hollow outer shaft in the rotor spindle nose, let down on rotor spindle nose and the hollow outer shaft separately bilateral symmetry screw hole alignment; Then, being screwed into two screws respectively closely cooperates it.In addition, if the screw that is screwed into is tight inadequately or unjustified screw hole, parts when high speed rotating, will occurs and break away from danger such as causing model copter damage even generation air crash.
2. the difficult difficult grasp of dismounting
When the replacing accessory was dismantled, on the one hand, it was many to wait to tear screw open; On the other hand; Because the initial screw hole that has caused when shooting screw on the hollow outer shaft of installing produces burr; If unprocessed, those can not can't be dismantled through the burr place with the parts such as bearing that hollow outer shaft just cooperates, so must rasp away burr with file.So complicated operation causes the dismounting trouble, is not easy to grasp.
Summary of the invention
The technical problem that the present invention will solve provides that a kind of dismounting is simple, the just dismounting axle center structure of the coaxial twin-screw reversal helicopter model of good reliability, especially is fit to youngsters and children, makes the dismounting of their easy master model copter.
Adopt following technical scheme for solving the problems of the technologies described above the present invention: the just dismounting axle center structure of coaxial twin-screw reversal helicopter model; Mainly form by interior axle and outer shaft; Outer shaft passes upper exterior tube cover, following rotor spindle nose, lower outer pipe cover, outer shaft upper bearing (metal), frame, outer shaft lower bearing from top to bottom according to this, and two ends connect the inner shaft bearing cover respectively and cog; Interior axle passes interior axle upper bearing (metal), inner shaft bearing cover, outer shaft, interior axle lower bearing, lower gear, lower gear lock tube from top to bottom according to this, and is fixed by lower gear lock tube screw; Outer shaft is a regular prism, and following rotor spindle nose is the regular polygon of coupling regular prism with the matching hole that cogs with outer shaft.
Outer shaft is positive six prisms, and regular polygon is a regular hexagon.
Outer shaft is positive eight prisms, and regular polygon is an octagon.
The inside of upper exterior tube cover or lower outer pipe cover is the regular prism of cylinder or coupling outer shaft.
The present invention adopts the outer shaft of regular prism, will descend rotor spindle nose and the regular polygon that the matching hole that cogs is designed to match simultaneously, has guaranteed that time rotor spindle nose and outer shaft rotate synchronously, has saved additional fasteners, has improved the security reliability of operation; The structure of simplifying also is easier to dismounting, makes things convenient for youngsters and children learning and mastering model copter knowledge.
Description of drawings
Below in conjunction with accompanying drawing the just dismounting axle center structure of coaxial twin-screw reversal helicopter model of the present invention is done further explain.
Fig. 1 is the accessory installation diagram of the just dismounting axle center structure of coaxial twin-screw reversal helicopter model of the present invention.
Fig. 2 is the partial enlarged drawing of following rotor spindle nose among Fig. 1.
Fig. 3 is the partial enlarged drawing of positive six prismatic outer shafts among Fig. 1.
Fig. 4 is the partial enlarged drawing that cogs among Fig. 1.
Fig. 5 is the accessory installation diagram of the axle center structure of traditional coaxial twin-screw reversal helicopter model.
Fig. 6 is the partial enlarged drawing of following rotor spindle nose among Fig. 5.
Fig. 7 is the partial enlarged drawing of circular outer shaft among Fig. 5.
Fig. 8 is the partial enlarged drawing that cogs among Fig. 5.
Among the figure:
The 1-1 frame, 2-1 outer shaft upper bearing (metal), 3-1 outer shaft lower bearing, the circular outer shaft of 4-1; 5-1 outer shaft lock tube, rotor spindle nose under the 6-1, rotor spindle nose screw under the 7-1,8-1 inner shaft bearing cover; Axle upper bearing (metal) in the 9-1, axle in the 10-1,11-1 cogs, axle lower bearing in the 12-1; The 13-1 lower gear, 14-1 lower gear lock tube, 15-1 lower gear lock tube screw;
The 1-2 frame, 2-2 outer shaft upper bearing (metal), 3-2 outer shaft lower bearing, 4-2 positive six prismatic outer shafts; 5-2 lower outer pipe cover, rotor spindle nose under the 6-2,7-2 upper exterior tube cover, 8-2 inner shaft bearing cover; Axle upper bearing (metal) in the 9-2, axle in the 10-2,11-2 cogs, axle lower bearing in the 12-2; The 13-2 lower gear, 14-2 lower gear lock tube, 15-2 lower gear lock tube screw.
The specific embodiment
Fig. 1 has shown a kind of embodiment of the just dismounting axle center structure of coaxial twin-screw reversal helicopter model of the present invention; This axle center structure mainly is made up of axle 10-2 and positive six prismatic outer shaft 4-2 (see figure 3)s in the cylinder; Positive six prismatic outer shaft 4-2 pass upper exterior tube cover 7-2 from top to bottom according to this, rotor spindle nose 6-2, lower outer pipe overlap 5-2, outer shaft upper bearing (metal) 2-2, frame 1-2, outer shaft lower bearing 3-2 down; Two ends connect inner shaft bearing cover 8-2 respectively and cog 11-2; Wherein, The matching hole of following rotor spindle nose 6-2 and cog 11-2 and positive six prismatic outer shaft 4-2 is the regular hexagon (seeing Fig. 2 and Fig. 4) of coupling outer shaft, and the inside of upper exterior tube cover and lower outer pipe cover is also for mating positive six prisms of outer shaft; Axle upper bearing (metal) 9-2, inner shaft bearing overlapped 8-2, positive six prismatic outer shaft 4-2, interior axle lower bearing 12-2, lower gear 13-2, lower gear lock tube 14-2 in axle 10-2 passed from top to bottom according to this in the cylinder, and were fixed by lower gear lock tube screw 15-2.
The installation process of this embodiment is specific as follows: at first, be respectively charged into outer shaft upper bearing (metal) 2-2 and outer shaft lower bearing 3-2 in the matching hole of frame 1-2 upper and lower, positive six prismatic outer shaft 4-2 are penetrated in outer shaft upper bearing (metal) 2-2 and the outer shaft lower bearing 3-2; Then be inserted in lower outer pipe cover 5-2 earlier, on lower outer pipe cover 5-2, be inserted in rotor spindle nose 6-2 down again, be inserted in upper exterior tube cover 7-2 again on the rotor spindle nose 6-2 down from the upper end of positive six prismatic outer shaft 4-2; Then, pack interior axle upper bearing (metal) 9-2 in the inner shaft bearing cover 8-2 into, pack into the upper end of positive six prismatic outer shaft 4-2, the lower end of again inner shaft bearing being overlapped 8-2 is near the top of upper exterior tube cover 7-2; At last; With pack into the lower end of positive six prismatic outer shaft 4-2 of the 11-2 that cogs; Interior axle lower bearing 12-2 being packed into cogs in the dead eye of 11-2 bottom again, penetrates interior axle 10-2 to interior axle lower bearing 12-2 from interior axle upper bearing (metal) 9-2 and passes the bottom of a 10-2 in again lower gear 13-2 being packed into; The lower gear lock tube 14-2 that packs in the bottom of lower gear 13-2, again with lower gear lock tube screw 15-2 with lower gear lock tube 14-2, lower gear 13-2 and in the bottom of axle 10-2 tighten up.
Above-mentioned just listing lifted preferred embodiments of the present invention, is not the present invention is done any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment; As outer shaft being designed to regular triangular prism, four-prism, positive pentagonal prism or positive eight prisms etc.; Perhaps the inside of outer tube sleeve is cylinder, all still belongs in the scope of technical scheme of the present invention.
Claims (4)
1. the just dismounting axle center structure of a coaxial twin-screw reversal helicopter model; Mainly form by interior axle and outer shaft; Outer shaft passes upper exterior tube cover, following rotor spindle nose, lower outer pipe cover, outer shaft upper bearing (metal), frame, outer shaft lower bearing from top to bottom according to this, and the outer shaft two ends connect the inner shaft bearing cover respectively and cog; Interior axle passes interior axle upper bearing (metal), inner shaft bearing cover, outer shaft, interior axle lower bearing, lower gear, lower gear lock tube from top to bottom according to this, and is fixed by lower gear lock tube screw; It is characterized in that: said outer shaft is a regular prism, and said rotor spindle nose down is the regular polygon of coupling regular prism with the matching hole that cogs with outer shaft.
2. the just dismounting axle center structure of coaxial twin-screw reversal helicopter model according to claim 1, it is characterized in that: said outer shaft is positive six prisms, and said regular polygon is a regular hexagon.
3. the just dismounting axle center structure of coaxial twin-screw reversal helicopter model according to claim 1, it is characterized in that: said outer shaft is positive eight prisms, and said regular polygon is an octagon.
4. according to the just dismounting axle center structure of the arbitrary described coaxial twin-screw reversal helicopter model of claim 1 to 3, it is characterized in that: the inside of said upper exterior tube cover or lower outer pipe cover is the regular prism of cylinder or coupling outer shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102770671A CN101972548B (en) | 2010-09-09 | 2010-09-09 | Convenient assembling and disassembling axis structure of coaxial double-paddle reversal model helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102770671A CN101972548B (en) | 2010-09-09 | 2010-09-09 | Convenient assembling and disassembling axis structure of coaxial double-paddle reversal model helicopter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101972548A CN101972548A (en) | 2011-02-16 |
| CN101972548B true CN101972548B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102770671A Expired - Fee Related CN101972548B (en) | 2010-09-09 | 2010-09-09 | Convenient assembling and disassembling axis structure of coaxial double-paddle reversal model helicopter |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211663B (en) * | 2011-05-11 | 2013-05-01 | 王略 | Gear tilting type coaxial machine |
| CN102211664B (en) * | 2011-05-11 | 2013-05-01 | 王略 | Cross titling coaxial aircraft |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20314041U1 (en) * | 2003-09-10 | 2004-03-04 | Grüntjens, Norbert | Rotor head for model helicopter, has central piece formed by two mirror symmetrical parts |
| CN201091794Y (en) * | 2007-08-08 | 2008-07-30 | 徐文宇 | Remote control helicopter |
| CN101653661A (en) * | 2009-09-24 | 2010-02-24 | 上海九鹰电子科技有限公司 | Propeller connector of electric-powered model airplane |
| CN201799114U (en) * | 2010-09-09 | 2011-04-20 | 倪康汉 | Axle structure with convenient dismounting of coaxial double-paddle counter-rotating model helicopter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100537173B1 (en) * | 2003-06-21 | 2005-12-26 | 주식회사마이크로에어 | Micro Aerial Vehlcle |
-
2010
- 2010-09-09 CN CN2010102770671A patent/CN101972548B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20314041U1 (en) * | 2003-09-10 | 2004-03-04 | Grüntjens, Norbert | Rotor head for model helicopter, has central piece formed by two mirror symmetrical parts |
| CN201091794Y (en) * | 2007-08-08 | 2008-07-30 | 徐文宇 | Remote control helicopter |
| CN101653661A (en) * | 2009-09-24 | 2010-02-24 | 上海九鹰电子科技有限公司 | Propeller connector of electric-powered model airplane |
| CN201799114U (en) * | 2010-09-09 | 2011-04-20 | 倪康汉 | Axle structure with convenient dismounting of coaxial double-paddle counter-rotating model helicopter |
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| Publication number | Publication date |
|---|---|
| CN101972548A (en) | 2011-02-16 |
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Granted publication date: 20120704 Termination date: 20150909 |
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