CN203127143U - Low-rotating-speed double-layer propcopter - Google Patents
Low-rotating-speed double-layer propcopter Download PDFInfo
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- CN203127143U CN203127143U CN 201320045510 CN201320045510U CN203127143U CN 203127143 U CN203127143 U CN 203127143U CN 201320045510 CN201320045510 CN 201320045510 CN 201320045510 U CN201320045510 U CN 201320045510U CN 203127143 U CN203127143 U CN 203127143U
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- gear
- propeller
- rotating shaft
- layer
- screw propeller
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Abstract
The utility model discloses a low-rotating-speed double-layer propcopter which comprises a stander and two layers of propellers, wherein the propellers are arranged on the stander through a center shaft; the two layers of propellers are respectively an upper propeller and a lower propeller; the rotating direction of the upper propeller is opposite to that of the lower propeller; each of the upper propeller and the lower propeller comprises two blades; the two blades are respectively symmetrically arranged on two sides of the center shaft through connection rods; concave structures are arranged on the lower surfaces of the blades; when the load weight is 200 kilograms, the sum of areas of the corresponding four blades is 6-15 square meters; and the blades are 1.8-2.5 meters long and 0.6-1.5 meters wide. The low-rotating-speed double-layer propcopter has the advantages that the rotating speed of the large-blade propellers is lower, the abrasion to accessories is lower, the service life is longer, and the fault rate is lowe; the utilization rate of engine power is improved; by adoption of the smaller-size engine, the low-rotating-speed double-layer propcopter is lighter in mass, lower in cost and higher in market prospect; and energy can be better saved.
Description
[technical field]
The utility model relates to aviation helicopter technical field, is specially a kind of slow speed of revolution double-layer propeller helicopter.
[background technology]
There is various helicopter in the whole world at present, but these helicopters all must just can obtain enough lift under the high-revolving prerequisite of screw propeller, and the wearing and tearing of driving engine are big under high-revolving situation, service life is short, fault rate is higher and safety is relatively poor.In addition, screw propeller will obtain at a high speed rotation need be than high-power, thus need with bigger driving engine, thus cause whole fuselage heavier, consumption of fuel is big simultaneously, the manufacturing cost height.
[utility model content]
The purpose of this utility model is the deficiency that exists at above-mentioned prior art to provide a kind of double-layer propeller that has, and propeller blade is big, and is simple in structure and more save the slow speed of revolution double-layer propeller helicopter of the energy.
The slow speed of revolution double-layer propeller helicopter that provides according to the utility model, described screw propeller is installed on the described frame by center shaft, described screw propeller is provided with two-layer, be respectively upper strata screw propeller and lower floor's screw propeller, described upper strata screw propeller hand of rotation is opposite with described lower floor screw propeller hand of rotation, described upper strata screw propeller and lower floor's screw propeller include two blades, two described blades are arranged at the both sides of described center shaft respectively by pipe link, and the lower surface of described blade is provided with sunk structure; When load carrying ability was 200 kilograms, four described blade area summations of corresponding upper strata screw propeller and lower floor's screw propeller were the 6-15 sq m, and the length of described blade is 1.8-2.5 rice, and wide is 0.6-1.5 rice.
Described center shaft comprises first rotating shaft and second rotating shaft, and described second rotating shaft is enclosed within the outside of described first rotating shaft, and keeps and can rotate.
Described upper strata screw propeller is installed in described first rotating shaft, and described lower floor screw propeller is installed in described second rotating shaft.
Described frame is provided with driving engine, first gear, second gear, the 3rd gear, the 4th gear and the 5th gear, described first rotating shaft of described engine drive, described first gear is fixed on the described first rotating shaft lower end, described the 3rd gear is fixed on the described second rotating shaft lower end, and described driving engine drives the rotation of first gear by driving first rotating shaft.
Described second gear and the engagement of described first gear, described the 4th gear and second gear are installed in the same rotating shaft, form coaxial rotation, described the 4th gear and the engagement of described the 5th gear, described the 5th gear meshes with described the 3rd gear again.
Be connected with yaw rudder on the described frame, front end setting " ten " the font paddle of described yaw rudder, described yaw rudder end is provided with elastic recovery device.
Described frame is provided with handrail, and described " ten " font paddle links to each other with described handrail by rope, is used for the heading of control helicopter.
Described frame is connected with driver seat, and described seat is movably connected on the described frame by movable rod, and driver seat flies aircraft by moving forward and backward to change the center of gravity of aircraft forward or backward.
Described driver seat is provided with spring, is used for buffer action.
The lower end of described frame is provided with stay bearing plate, is used for supporting whole frame.
Compared with prior art, the utility model has following advantage: the aerodynamic force that double-layer propeller, propeller blade make helicopter obtain greatly is bigger; The sunk structure of blade makes and to be pressed to such an extent that air accumulates in the centre of blade that lift point can arbitrarily not change, and makes aircraft flight steady; The slow speed of revolution of screw propeller makes that the rotating speed of each accessory is lower, and it is littler to wear and tear, longer service life, and fault rate is lower; The engine power degree of utilization improves, and when load carrying ability is identical, can adopt the littler driving engine of model, and weight is lighter, and cost is lower, more energy savings; The big blade propeller of this product can be extenuated the speed of decline when engine breakdown, safer, has good market outlook.
[description of drawings]
Fig. 1 is the integral structure scheme drawing of the utility model slow speed of revolution double-layer propeller helicopter embodiment 1;
Fig. 2 is the integral structure scheme drawing of the utility model slow speed of revolution double-layer propeller helicopter embodiment 2;
Fig. 3 is the structural representation of the utility model slow speed of revolution double-layer propeller helicopter yaw rudder;
Fig. 4 is the structural representation of the utility model slow speed of revolution double-layer propeller helicopter blade;
Fig. 5 is Fig. 4 the utility model slow speed of revolution double-layer propeller helicopter blade A-A face cutaway view.
[specific embodiment]
Below in conjunction with the drawings and specific embodiments the utility model is described in detail explanation.
Slow speed of revolution double-layer propeller helicopter as shown in Figure 1, comprises frame 2 and screw propeller 1, and described screw propeller 1 is installed on the center shaft 3, and described center shaft 3 is installed on the described frame 2.
Described center shaft 3 comprises first rotating shaft 31 and second rotating shaft 32, and described second rotating shaft 32 is enclosed within the outside of described first rotating shaft 31.Described upper strata screw propeller is installed in described first rotating shaft 31 upper ends, and described lower floor screw propeller is installed in described second rotating shaft 32 upper ends.
In conjunction with Fig. 1, Fig. 3, Fig. 4 and Fig. 5, described screw propeller 1 is provided with two-layer, is respectively upper strata screw propeller and lower floor's screw propeller.Described screw propeller comprises two blades 11, and described two blades 11 are arranged at the both sides of center shaft 3 respectively by pipe link 12.The lower surface of described blade 11 is provided with sunk structure 13 described sunk structures 13 and air can be concentrated in the sunk structure 13, thereby guarantee that helicopter lift point in flight course remains unchanged, more steady when therefore flying, can arbitrarily not rock, thereby solved because the area of propeller blade is big, be difficult to keep the problem of balance during flight.
When load carrying ability was 200 kilograms, the blade area summation that described upper strata screw propeller and lower floor's screw propeller are four was the 6-15 sq m, and the length of corresponding blade 11 is 1.8 meters-2.5 meters, and wide is 0.6 meter-1.5 meters.Described screw propeller 1 is provided with two-layer and the roomy helicopter lift that makes of its blade 11 areas increases, accomplish to utilize big blade propeller, be implemented in and obtain bigger lift under the situation of rotating speed, can improve the power utilization of driving engine simultaneously, saved the fuel oil energy, provided cost savings.
Also be provided with driving engine 7 on the described frame 2, first gear 81, second gear 82, the 3rd gear 83, the 4th gear 84 and the 5th gear 85, described first gear 81 is installed in described first rotating shaft 31 lower ends, described the 3rd gear is fixed on described second rotating shaft 32 lower ends, described driving engine 7 connects and drives first rotating shaft 31, thereby described driving engine 7 drives and drives 81 rotations of first gear after first rotating shaft 31 is rotated, the rotation of described first gear 81 drives described second gear 82 and rotates, described second gear 82 rotates and drives 84 rotations of described the 4th gear, described the 4th gear 84 rotates and drives described the 5th gear 85, and the rotation of described the 5th gear 85 drives described the 3rd gear 83 then and rotates.
Concrete connection mode between each gear is: described second gear 82 and 81 engagements of first gear, described the 4th gear 84 and second gear 82 are installed in the same rotating shaft, form coaxial rotation, described the 3rd gear 83 and 85 engagements of described the 5th gear, described the 5th gear 85 is meshed with described the 4th gear 84 again.Like this, the rotation direction of each gear is: second gear 82 and the rotation of first gear, 81 opposite senses, because the 4th gear 84 is coaxial with second gear 82, so both rotate in the same way, work the 5th gear 85 of changing directive effect and pressed from both sides one between the 4th gear 84 and the 3rd gear 83, so the 3rd gear 83 and the 4th gear 84 then can obtain the 3rd gear 83 and 81 contrarotations of first gear for rotating in the same way.And described the 3rd gear 83 is installed in second rotating shaft 32, so the rotation of described the 3rd gear 83 has driven the rotation of second rotating shaft 32, thereby drive the rotation be installed in the lower floor's screw propeller in described second rotating shaft 32, realized that upper strata screw propeller hand of rotation is opposite with lower floor screw propeller hand of rotation.
Also be connected with yaw rudder 5 on the described frame 2, the direction that is used for the control helicopter flight, the front end of described yaw rudder 5 is provided with " ten " font paddle 51, the end of described yaw rudder is provided with elastic recovery device 52, described elastic recovery device 52 is springs, deformation takes place in described elastic recovery device 52 when helicopter changes the direction operation, when helicopter recovered the flight of straight line dead ahead, yaw rudder 5 can recover to make operation easier automatically.Described frame 2 is provided with handrail 6, and described " ten " font paddle 51 links to each other with described handrail 6 by rope 9, thereby chaufeur can be controlled the heading that the direction of yaw rudder 5 reaches the control helicopter by operating handrail 6.
Described frame 2 is connected with driver seat 4 by connecting rod 42, and described driver seat 4 is because the effect of center of gravity can be in state vertically downward always.When chaufeur moved forward driver seat 4 by described handrail 6, whole helicopter fuselage center of gravity moved forward, and described screw propeller 1 can turn forward, and helicopter is flight forward just; When chaufeur moved driver seat 4 backward by described handrail 6, whole helicopter fuselage center of gravity was mobile backward, and described screw propeller 1 recedes, and helicopter is flight backward just.Also be provided with spring 41 on the described driver seat 4, described spring can play buffer action, when preventing that aircraft from descending fast because impacting the excessive injury to personnel that makes.The lower end of described frame 2 is provided with stay bearing plate 10, be used for to support whole frame 2, makes whole frame 2 steady.
Slow speed of revolution double-layer propeller helicopter, as shown in Figure 2, basic structure is all identical with embodiment 1, and difference is to control the upper strata screw propeller hand of rotation mode opposite with lower floor's screw propeller hand of rotation.The implementation of present embodiment is: the 3rd gear among the embodiment 1 and the 4th gear are replaced to first belt pulley 83 and second belt pulley 84, the 5th gear is removed, put drive belt 85 at described first belt pulley 83 and second belt pulley 84, drive first gear 81 by driving engine 7, the rotation of described first gear 81 drives described second gear 82, the rotation of described second gear 82 drives coaxial with it described second belt pulley 84 and rotates, because the gearing of described drive belt 85, and then drive last drive second rotating shaft of first belt pulley, 83 rotations 32 rotations, realized that upper strata screw propeller hand of rotation is opposite with lower floor's screw propeller hand of rotation.
More than describe preferred embodiment of the present utility model in detail, the ordinary skill that should be appreciated that this area need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technical personnels in the art according to the utility model design on the prior art basis by logic analysis, reasoning or according to the available technical scheme of limited experiment, all should be among the determined protection domain by these claims.
Claims (10)
1. slow speed of revolution double-layer propeller helicopter, comprise frame (2) and screw propeller (1), described screw propeller (1) is installed on the described frame (2) by center shaft (3), it is characterized in that, described screw propeller (1) is provided with two-layer, be respectively upper strata screw propeller and lower floor's screw propeller, described upper strata screw propeller hand of rotation is opposite with described lower floor screw propeller hand of rotation, described upper strata screw propeller and lower floor's screw propeller include two blades (11), two described blades (11) are symmetricly set in the both sides of described center shaft (3) respectively by pipe link (12), and the lower surface of described blade (11) is provided with sunk structure (13); When load carrying ability was 200 kilograms, four described blades of corresponding upper strata screw propeller and lower floor's screw propeller (11) area summation was the 6-15 sq m, and the length of described blade (11) is 1.8-2.5 rice, and wide is 0.6-1.5 rice.
2. slow speed of revolution double-layer propeller helicopter according to claim 1 is characterized in that, described center shaft (3) comprises first rotating shaft (31) and second rotating shaft (32), and described second rotating shaft (32) is enclosed within the outside of described first rotating shaft (31).
3. slow speed of revolution double-layer propeller helicopter according to claim 2 is characterized in that, described upper strata screw propeller is installed in described first rotating shaft (31), and described lower floor screw propeller is installed in described second rotating shaft (32).
4. slow speed of revolution double-layer propeller helicopter according to claim 1, it is characterized in that, described frame (2) is provided with driving engine (7), first gear (81), second gear (82), the 3rd gear (83), the 4th gear (84) and the 5th gear (85), described driving engine (7) drives described first rotating shaft (31), described first gear (81) is installed in described first rotating shaft (31) lower end, described the 3rd gear (83) is installed in described second rotating shaft (32) lower end, and described driving engine (7) drives first gear (81) rotation by driving first rotating shaft (31).
5. slow speed of revolution double-layer propeller helicopter according to claim 4, it is characterized in that, described second gear (82) and described first gear (81) engagement, described the 4th gear (84) is installed in the same rotating shaft with second gear (82), described the 4th gear (84) and described the 5th gear (85) engagement, described the 5th gear (85) meshes with described the 3rd gear (83) again.
6. slow speed of revolution double-layer propeller helicopter according to claim 1, it is characterized in that, be connected with yaw rudder (5) on the described frame (2), front end setting " ten " the font paddle (51) of described yaw rudder (5), described yaw rudder (5) end is provided with elastic recovery device (52).
7. slow speed of revolution double-layer propeller helicopter according to claim 6, it is characterized in that, described frame (2) is provided with handrail (6), and described " ten " font paddles (51) link to each other with described handrail (6) by rope (9), is used for the heading of control helicopter.
8. slow speed of revolution double-layer propeller helicopter according to claim 1, it is characterized in that, also be connected with driver seat (4) on the described frame (2), described driver seat (4) is movably connected on the described frame (2) by movable rod (42), described driver seat (4) moves forward and backward to change the center of gravity of aircraft, and aircraft is flown forward or backward.
9. slow speed of revolution double-layer propeller helicopter according to claim 8 is characterized in that, described driver seat (4) is provided with spring (41), is used for buffer action.
10. slow speed of revolution double-layer propeller helicopter according to claim 1 is characterized in that, the lower end of described frame (2) is provided with stay bearing plate (10), is used for supporting whole frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320045510 CN203127143U (en) | 2013-01-28 | 2013-01-28 | Low-rotating-speed double-layer propcopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320045510 CN203127143U (en) | 2013-01-28 | 2013-01-28 | Low-rotating-speed double-layer propcopter |
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| Publication Number | Publication Date |
|---|---|
| CN203127143U true CN203127143U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320045510 Expired - Fee Related CN203127143U (en) | 2013-01-28 | 2013-01-28 | Low-rotating-speed double-layer propcopter |
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| Country | Link |
|---|---|
| CN (1) | CN203127143U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072689A (en) * | 2013-01-28 | 2013-05-01 | 黄春水 | Low-rotating-speed double-layer propcopter |
| CN105539830A (en) * | 2015-12-31 | 2016-05-04 | 歌尔科技有限公司 | Air vehicle |
-
2013
- 2013-01-28 CN CN 201320045510 patent/CN203127143U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072689A (en) * | 2013-01-28 | 2013-05-01 | 黄春水 | Low-rotating-speed double-layer propcopter |
| CN103072689B (en) * | 2013-01-28 | 2016-04-13 | 黄春水 | Slow speed of revolution double-layer propeller helicopter |
| CN105539830A (en) * | 2015-12-31 | 2016-05-04 | 歌尔科技有限公司 | Air vehicle |
| US10259573B2 (en) | 2015-12-31 | 2019-04-16 | Goertek Technology Co., Ltd. | Coaxial twin-propeller twin-motor aerial vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20170128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |