CN115107992B - Electric variable pitch propeller - Google Patents
Electric variable pitch propeller Download PDFInfo
- Publication number
- CN115107992B CN115107992B CN202210907695.6A CN202210907695A CN115107992B CN 115107992 B CN115107992 B CN 115107992B CN 202210907695 A CN202210907695 A CN 202210907695A CN 115107992 B CN115107992 B CN 115107992B
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- CN
- China
- Prior art keywords
- slip ring
- hub
- variable pitch
- current collecting
- ring assembly
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
- B64C11/44—Blade pitch-changing mechanisms electric
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
- Motor Power Transmission Devices (AREA)
Abstract
The invention relates to a variable pitch propeller, in particular to an electric variable pitch propeller, which comprises a propeller hub and an electric variable pitch mechanism, wherein a motor end wire of the electric variable pitch mechanism is arranged at a transmission connecting end of the propeller hub, a connecting component for connecting a main shaft is arranged at the transmission connecting end of the propeller hub, the connecting component comprises at least three connecting units, all the connecting units are distributed in an annular array around a rotation axis of the propeller hub, a current collecting slip ring component is fixedly connected at the transmission connecting end of the propeller hub, the current collecting slip ring component is sleeved at the outer side of the connecting component, a clamping groove is arranged between adjacent connecting units, a positioning block matched with the clamping groove is fixedly arranged on the current collecting slip ring component, and the motor end wire penetrates through the clamping groove and is connected with the inner side of the current collecting slip ring component. The problem that the screw is easy to take place the displacement inefficacy among the prior art has been solved to this scheme.
Description
Technical Field
The invention relates to a variable-pitch propeller, in particular to an electric variable-pitch propeller.
Background
The electric variable pitch propeller comprises a hub, a blade assembly and an electric variable pitch mechanism, and a power supply of the electric variable pitch mechanism is positioned on one side of the aero-engine. As shown in fig. 1 to 3, in the prior art, a slip ring assembly 9 and a carbon brush assembly 8 for transmitting electric energy to a propeller are installed on one side of an engine transmission case 3 far away from the propeller 1, the carbon brush assembly 8 is connected with a wire of a power supply and installed on the engine transmission case 3, the slip ring assembly 9 matched with the brush assembly 8 is installed on a main shaft 7 of the engine transmission case 3 for connecting the propeller, the main shaft 7 is a hollow shaft, and the wire of the slip ring assembly 9 extends towards the propeller 1 along the inside of the main shaft. Be provided with the transmission link 21 that is used for connecting main shaft 7 on the oar hub 2 of screw 1, transmission link 21 department has set firmly the coupling assembling 4 that is used for connecting main shaft 7, transmission link 21 department is provided with the motor end electric wire terminal box 5 of electronic displacement mechanism, be provided with slip ring end electric wire terminal box 6 on the electric wire of the inside current collection slip ring subassembly 9 of main shaft 7, when being connected the main shaft 7 of screw 1 and engine transmission case 3, need be connected motor end electric wire terminal box 5 and slip ring end electric wire terminal box 6 earlier, realize electronic displacement mechanism and power intercommunication, then fixed screw 1 and main shaft 7 again.
When installing such screw and use on unmanned aerial vehicle, the screw takes place the phenomenon that the displacement became invalid easily, leads to unmanned aerial vehicle to appear often when flying the unstable problem of operating condition.
Disclosure of Invention
The invention aims to provide an electric variable-pitch propeller so as to solve the problem that the propeller in the prior art is easy to generate variable-pitch failure.
In order to achieve the above purpose, the basic scheme of the invention provides an electric variable pitch propeller, which comprises a propeller hub and an electric variable pitch mechanism, wherein a motor end wire of the electric variable pitch mechanism is arranged at a transmission connecting end of the propeller hub, the transmission connecting end of the propeller hub is provided with a connecting component for connecting a main shaft, the connecting component comprises at least three connecting units, all the connecting units are distributed in an annular array around a rotation axis of the propeller hub, the transmission connecting end of the propeller hub is fixedly connected with a current collecting slip ring component, the current collecting slip ring component is sleeved on the outer side of the connecting component, a clamping groove is arranged between adjacent connecting units, a positioning block matched with the clamping groove is fixedly arranged on the current collecting slip ring component, and the motor end wire passes through the clamping groove and is connected with the inner side of the current collecting slip ring component.
The beneficial effect of this basic scheme lies in: by adopting the arrangement, the situation that the motor end wire is broken due to the assembly of the propeller and the engine is avoided, compared with the prior art, the problem that the electric variable pitch propeller is in variable pitch failure is greatly reduced, and the stability of the working state of the unmanned aerial vehicle is improved. Meanwhile, the current collecting slip ring assembly is directly arranged on the propeller, a junction box is not required to be used for connecting wires, and the corresponding carbon brush assembly can be arranged at one end, close to the propeller, of the engine transmission case, so that the influence of other parts on the engine transmission case, on the disassembly and assembly of the current collecting slip ring assembly and the carbon brush assembly, is avoided, and the maintenance convenience of the current collecting slip ring assembly and the carbon brush assembly is improved.
Further, the slip ring assembly comprises a plurality of conductive unit rings with the same outer diameter, and all the conductive unit rings are coaxially arranged to form a cylinder shape. By adopting the arrangement, the phenomenon that the propeller fails in variable pitch is further reduced, and therefore the working reliability of the propeller is improved.
Further, the hub is provided with a threading hole for the motor end wire to pass through from the inside. By adopting the arrangement, the phenomenon that the propeller fails in variable pitch is further reduced, and therefore the working reliability of the propeller is improved.
Further, a pressing block used for fixing the positioning block is detachably connected to the hub, which is positioned in the clamping groove. By adopting the arrangement, the maintenance convenience of the current collecting slip ring assembly is further improved.
Further, the pressing block is connected with the hub through a bolt. By adopting the arrangement, the maintenance convenience of the current collecting slip ring assembly is further improved.
Drawings
FIG. 1 is a state of use of an electric variable pitch propeller of the prior art;
FIG. 2 is a schematic view of the hub of FIG. 1;
FIG. 3 is a schematic view of the slip ring assembly and carbon brush of FIG. 1 in position on an engine gearbox;
FIG. 4 is a view showing a state of use of an embodiment of an electric variable pitch propeller according to the present invention;
FIG. 5 is a schematic view of the hub of FIG. 4;
fig. 6 is an exploded view of the structure of fig. 5.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: carbon brush assembly 11, current collection slip ring assembly 12, engine transmission case 13, hub 14, threading hole 141, transmission link 142, connecting unit 15, briquetting 16, motor end electric wire 17.
An embodiment is substantially as shown in figures 4 to 6: the electric variable pitch propeller comprises a hub 14 and an electric variable pitch mechanism, wherein motor end wires 17 of the electric variable pitch mechanism are arranged at a transmission connecting end 142 of the hub 14, the transmission connecting end 142 of the hub 14 is fixedly connected with a current collecting slip ring assembly 12, and the motor end wires 17 are connected with the current collecting slip ring assembly 12. In this embodiment, the transmission connection end 142 of the hub 14 is fixedly provided with a connection assembly for connecting to the main shaft, specifically, the connection assembly includes at least three connection units 15, and preferably six connection units 15 are provided; all the connection units 15 are distributed in an annular array around the rotation axis of the hub 14, and clamping grooves are formed between adjacent connection units 15. The collector slip ring assembly 12 is sleeved on the outer side of the connecting assembly, the collector slip ring assembly 12 comprises a plurality of conductive unit rings with the same outer diameter, the conductive unit rings are arranged according to requirements, such as two, three and the like, and all the conductive unit rings are coaxially arranged to form a cylinder shape; the current collecting slip ring assembly 12 is fixedly provided with positioning blocks matched with the clamping grooves, and the current collecting slip ring assembly 12 is sleeved on the outer side of the connecting assembly in a one-to-one opposite mode of the positioning blocks and the clamping grooves, so that the current collecting slip ring assembly 12 cannot rotate relative to the hub 14 under the matching action of the clamping grooves and the positioning blocks.
In this embodiment, a pressing block 16 for fixing a positioning block is detachably connected to the hub 14 in the clamping groove, specifically, the pressing block 16 is connected to the hub 14 through a bolt, and the positioning block of the slip ring assembly 12 is pressed and fixed on the hub 14 through the pressing block 16, so as to fix the slip ring assembly 12. In this embodiment, the motor end electric wire 17 passes through the clamping groove and is connected with the slip ring assembly 12, so that the space of the clamping groove is conveniently utilized to protect the motor end electric wire 17. In the present embodiment, the hub 14 is provided with the threading hole 141 through which the motor-end wire 17 passes from the inside, thereby avoiding the adverse effect of the external environment in which the motor-end wire 17 is disposed outside the hub 14.
When the propeller is used, after the current collecting slip ring assembly 12 is installed at the transmission connecting end 142 of the propeller hub 14, the motor end electric wire 17 of the pitch changing mechanism is connected with the inner side of the current collecting slip ring assembly 12, then the propeller is assembled on the main shaft of the engine transmission case 13, and the carbon brush assembly 11 corresponding to the current collecting slip ring assembly 12 is installed on the engine transmission case 13, so that the motor end electric wire 17 of the pitch changing mechanism of the propeller is communicated with a power supply.
The foregoing is merely exemplary embodiments of the present invention, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (5)
1. The utility model provides an electronic displacement screw, includes oar hub and electronic displacement mechanism, the motor end electric wire of electronic displacement mechanism is laid in the transmission link of oar hub, the transmission link of oar hub is provided with the coupling assembling who is used for connecting the main shaft, coupling assembling includes at least three connecting element, and all connecting elements are annular array distribution around the axis of revolution of oar hub, its characterized in that: the electric motor is characterized in that the transmission connecting end of the propeller hub is fixedly connected with a current collecting slip ring assembly, the current collecting slip ring assembly is sleeved on the outer side of the connecting assembly, a clamping groove is formed between adjacent connecting units, a positioning block matched with the clamping groove is fixedly arranged on the current collecting slip ring assembly, and an electric wire at the motor end penetrates through the clamping groove and is connected with the inner side of the current collecting slip ring assembly.
2. An electric variable pitch propeller according to claim 1, wherein: the collector slip ring assembly comprises a plurality of conductive unit rings with the same outer diameter, and all the conductive unit rings are coaxially arranged to form a cylinder shape.
3. An electric variable pitch propeller according to claim 2, wherein: the hub is provided with a threading hole for a motor end wire to pass through from the inside.
4. An electric variable pitch propeller according to claim 3, wherein: and the hub is positioned in the clamping groove and is detachably connected with a pressing block for fixing the positioning block.
5. An electric variable pitch propeller according to claim 4, wherein: the pressing block is connected with the paddle hub through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210907695.6A CN115107992B (en) | 2022-07-29 | 2022-07-29 | Electric variable pitch propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210907695.6A CN115107992B (en) | 2022-07-29 | 2022-07-29 | Electric variable pitch propeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115107992A CN115107992A (en) | 2022-09-27 |
| CN115107992B true CN115107992B (en) | 2023-10-20 |
Family
ID=83335352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210907695.6A Active CN115107992B (en) | 2022-07-29 | 2022-07-29 | Electric variable pitch propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115107992B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699568A (en) * | 1984-06-25 | 1987-10-13 | Hartzell Propeller Inc. | Aircraft propeller with improved spinner assembly |
| CN105428949A (en) * | 2015-12-15 | 2016-03-23 | 中国人民解放军装备学院 | High-voltage transmission slip ring device for plasma flow control of propeller |
| CN112937837A (en) * | 2021-02-05 | 2021-06-11 | 安徽羲禾航空科技有限公司 | Variable pitch propeller |
| CN214397203U (en) * | 2021-02-05 | 2021-10-15 | 安徽羲禾航空科技有限公司 | Variable-pitch driving system for propeller blades |
-
2022
- 2022-07-29 CN CN202210907695.6A patent/CN115107992B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699568A (en) * | 1984-06-25 | 1987-10-13 | Hartzell Propeller Inc. | Aircraft propeller with improved spinner assembly |
| CN105428949A (en) * | 2015-12-15 | 2016-03-23 | 中国人民解放军装备学院 | High-voltage transmission slip ring device for plasma flow control of propeller |
| CN112937837A (en) * | 2021-02-05 | 2021-06-11 | 安徽羲禾航空科技有限公司 | Variable pitch propeller |
| CN214397203U (en) * | 2021-02-05 | 2021-10-15 | 安徽羲禾航空科技有限公司 | Variable-pitch driving system for propeller blades |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115107992A (en) | 2022-09-27 |
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| PB01 | Publication | ||
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| CB02 | Change of applicant information |
Address after: Building 14, No. 126, Yunan Avenue, Banan District, Chongqing Applicant after: Chongqing Zongshen Aviation Engine Manufacturing Co.,Ltd. Address before: Building 14, No. 126, Yunan Avenue, Banan District, Chongqing Applicant before: CHONGQING ZONGSHEN AIRCRAFT ENGINE MANUFACTURING CO.,LTD. |
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| GR01 | Patent grant |