CN210761239U - Coaxial long and short wing propulsion unit - Google Patents
Coaxial long and short wing propulsion unit Download PDFInfo
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- CN210761239U CN210761239U CN201921522303.4U CN201921522303U CN210761239U CN 210761239 U CN210761239 U CN 210761239U CN 201921522303 U CN201921522303 U CN 201921522303U CN 210761239 U CN210761239 U CN 210761239U
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Abstract
The utility model discloses a coaxial long and short wing advancing device. It includes rotor, lower rotor and is used for driving the synchronous opposite direction pivoted actuating mechanism of rotor, lower rotor, the axis of going up the rotor is located same straight line with the axis of lower rotor, lower rotor length is greater than rotor length. The utility model discloses a lower rotor length is greater than the design of rotor length for the wind-force that produces when rotor rotates in the utilization that the rotor can be better down, thereby improved whole propulsion efficiency.
Description
Technical Field
The utility model relates to a advancing device technical field especially relates to a coaxial length wing advancing device.
Background
The existing motor drives two propellers or the same position drives the two propellers by the two motors to generate power, the upper propeller and the lower propeller both adopt two propellers with the same length, and under the condition, the lower propeller cannot fully utilize the airflow generated by the upper propeller.
Disclosure of Invention
The utility model discloses a solve above-mentioned technical problem, provide a coaxial length wing advancing device, its adopt down the design that rotor length is greater than rotor length for the wind-force that produces when rotor rotates in the utilization that the rotor can be better down, thereby improved whole propulsion efficiency.
In order to solve the problem, the utility model discloses a following technical scheme realizes:
the utility model discloses a coaxial long and short wing advancing device, including last rotor, lower rotor and be used for driving the synchronous opposite direction pivoted actuating mechanism of rotor, lower rotor, the axis of going up the rotor is located same straight line with the axis of lower rotor, lower rotor length is greater than rotor length.
In this scheme, lower rotor length is greater than rotor length, and advancing device during operation goes up rotor, lower rotor and rotates, and lower rotor can be better the utilization go up the wind-force that the rotor produced when rotating to whole propulsion efficiency has been improved.
Preferably, the lower rotor length is 1.15 to 1.35 times the upper rotor length. A = lower rotor length/upper rotor length, the greater the distance between the lower and upper rotors, the greater the value of a.
Preferably, the driving mechanism includes a first dc brushless motor and a second dc brushless motor, the first dc brushless motor is used for driving the upper rotor to rotate, and the second dc brushless motor is used for driving the lower rotor to rotate. The first direct current brushless motor and the second direct current brushless motor are coaxially arranged back to back and respectively drive the upper rotor wing and the lower rotor wing to rotate.
Preferably, the driving mechanism comprises two rotors which are arranged in an up-down symmetrical manner, a stator for driving the two rotors to rotate in opposite directions is arranged between the two rotors, a synchronizing mechanism is further arranged between the two rotors, the two rotors are connected through the synchronizing mechanism, the synchronizing mechanism is used for enabling the two rotors to synchronously rotate in opposite directions at the same speed, the upper rotor is used for driving the upper rotor to rotate, and the lower rotor is used for driving the lower rotor to rotate.
The two rotors are arranged in an up-down symmetrical mode, and the axes of the two rotors are located on the same straight line. The stator is positioned between the two rotors and is used for driving the two rotors to rotate oppositely. The synchronous mechanism is used for enabling the upper rotor and the lower rotor to synchronously rotate forwards and reversely, and the rotating speeds of the two rotors are guaranteed to be the same. The upper rotor and the lower rotor rotate oppositely at the same speed and can drive the upper rotor and the lower rotor to rotate oppositely at the same speed. The driving mechanism is provided with only one stator, so that the weight is reduced, the cost is saved, the structure is simple, and the control is easy.
Preferably, the synchronizing mechanism comprises two linkage gears and at least one synchronizing gear, one linkage gear is coaxially connected with the rotor above, the other linkage gear is coaxially connected with the rotor below, the linkage gears are sleeved on a longitudinal shaft longitudinally arranged through bearing sleeves, the synchronizing gear is positioned between the two linkage gears and meshed with the two linkage gears, and the synchronizing gear is sleeved on a transverse shaft transversely arranged through the bearing sleeves.
When the rotors rotate, the linkage gears are driven to rotate, the upper linkage gears and the lower linkage gears rotate reversely to output force to the synchronous gears to drive the synchronous gears to rotate, and the synchronous gears enable the upper rotors and the lower rotors to rotate synchronously and reversely, so that the two rotors are guaranteed to have the same rotating speed.
Preferably, one end of the transverse shaft is fixedly connected with the longitudinal shaft, and the other end of the transverse shaft is fixedly connected with the stator. The linkage gear and the synchronous gear are both conical gears.
Preferably, the stator comprises an annular support coaxial with the longitudinal axis, a plurality of stator windings are arranged on the outer wall of the annular support along the circumference, the stator windings are longitudinally arranged, the rotor comprises a circular turntable coaxial with the longitudinal axis, a plurality of permanent magnets are arranged on the outer edge of the circular turntable along the circumference, one end magnetic poles of each circular turntable, facing the stator windings, of the adjacent permanent magnets are opposite, the permanent magnets on the upper rotor are located above the top magnetic poles of the stator windings, and the permanent magnets on the lower rotor are located below the bottom magnetic poles of the stator windings. The top magnetic pole and the bottom magnetic pole of the stator winding are opposite, and the top magnetic pole and the bottom magnetic pole of the stator winding are continuously changed so as to push the upper rotor and the lower rotor to oppositely rotate.
Preferably, the definition windings are distributed at equal intervals along the outer wall of the annular support, and the permanent magnets are distributed at equal intervals along the outer edge of the circular turntable.
The utility model has the advantages that: the design that the length of the lower rotor wing is larger than that of the upper rotor wing is adopted, so that the lower rotor wing can better utilize wind power generated when the upper rotor wing rotates, and the overall propulsion efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is a schematic structural view of example 2;
FIG. 3 is a schematic view of the internal structure of a drive mechanism of embodiment 2;
FIG. 4 is a top view of the ring-shaped stent of example 2;
FIG. 5 is a side view of the ring-shaped stent of example 2;
fig. 6 is a schematic structural view of a rotor of embodiment 2.
In the figure: 1. the rotor comprises an upper rotor, a lower rotor, a driving mechanism, a first direct current brushless motor, a second direct current brushless motor, a linkage gear, a synchronous gear, a vertical shaft, a horizontal shaft, a ring-shaped bracket, a stator winding, a circular turntable and a permanent magnet, wherein the upper rotor is 2, the lower rotor is 3, the driving mechanism is 4, the first direct current brushless motor is 5, the second direct current brushless motor is 6, the linkage gear.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example 1: the coaxial long and short wing propulsion device of the present embodiment, as shown in fig. 1, includes an upper rotor 1, a lower rotor 2, and a driving mechanism 3 for driving the upper rotor 1 and the lower rotor 2 to rotate in opposite directions synchronously, wherein the axis of the upper rotor 1 and the axis of the lower rotor 2 are located on the same straight line, and the length of the lower rotor 2 is 1.15 to 1.35 times that of the upper rotor 1.
A = lower rotor length/upper rotor length, the greater the distance between the lower and upper rotors, the greater the value of a.
The driving mechanism 3 includes a first dc brushless motor 4 and a second dc brushless motor 5, the first dc brushless motor 4 is used for driving the upper rotor 1 to rotate, and the second dc brushless motor 5 is used for driving the lower rotor 2 to rotate. The first direct current brushless motor and the second direct current brushless motor are coaxially arranged back to back and respectively drive the upper rotor wing and the lower rotor wing to rotate.
In this scheme, lower rotor length is greater than rotor length, and advancing device during operation goes up rotor, lower rotor and rotates, and lower rotor can be better the utilization go up the wind-force that the rotor produced when rotating to whole propulsion efficiency has been improved. The propulsion device can also be longitudinally arranged, so that the upper rotary wing is positioned at the front side, the lower rotary wing is positioned at the rear side, and the air is pushed to the rear from the front side.
Example 2: the coaxial long and short wing propulsion device of the present embodiment, as shown in fig. 2, includes an upper rotor 1, a lower rotor 2, and a driving mechanism 3 for driving the upper rotor 1 and the lower rotor 2 to rotate in opposite directions synchronously, wherein the axis of the upper rotor 1 and the axis of the lower rotor 2 are located on the same straight line, and the length of the lower rotor 2 is 1.15 to 1.35 times that of the upper rotor 1.
A = lower rotor length/upper rotor length, the greater the distance between the lower and upper rotors, the greater the value of a.
As shown in fig. 3, 4, 5, and 6, the driving mechanism 3 includes two rotors symmetrically disposed up and down, a stator for driving the two rotors to rotate in opposite directions is disposed between the two rotors, a synchronizing mechanism is further disposed between the two rotors, the two rotors are connected by the synchronizing mechanism, the synchronizing mechanism is used for enabling the two rotors to synchronously rotate in opposite directions and at the same speed, the rotor above is used for driving the upper rotor 1 to rotate, and the rotor below is used for driving the lower rotor 2 to rotate.
The synchronizing mechanism comprises two linkage gears 6 and two synchronizing gears 7, one linkage gear 6 is coaxially connected with a rotor above, the other linkage gear 6 is coaxially connected with a rotor below, the linkage gears 6 are sleeved on longitudinal shafts 8 which are longitudinally arranged through bearings, the synchronizing gears 7 are positioned between the two linkage gears 6 and are meshed with the two linkage gears 6, and the synchronizing gears 7 are sleeved on transverse shafts 9 which are transversely arranged through bearings.
The stator includes the ring support 10 coaxial with axis of ordinates 8, the lazytongs is located ring support 10 inboard, ring support 10 outer wall is equipped with 24 stator winding 11 along circumference equidistant, stator winding 11 is along vertically setting up, the rotor includes the circular carousel 12 coaxial with axis of ordinates 8, circular carousel 12 outer fringe is equipped with 28 permanent magnet 13 along the circumference, the adjacent permanent magnet 13 is opposite towards the one end magnetic pole of stator winding 11 on every circular carousel 12 (namely 28 permanent magnet is 14S poles and 14N poles altogether towards the magnetic pole of stator winding one end, S pole and N pole separate the setting, an S pole, 1N pole … … so circulate the circle), permanent magnet 13 on the rotor of top is located stator winding 11 'S top magnetic pole top, permanent magnet 13 on the rotor of below is located stator winding 11' S bottom magnetic pole below. And the diameter of the circle formed by all the permanent magnets on the circular turntable is the same as that of the circle formed by all the stator windings. Two linkage gears are symmetrically arranged on the opposite surfaces of the two circular turntables, and each linkage gear is fixedly connected with the circular turntable.
The two transverse shafts 9 are coaxial, one end of each transverse shaft 9 is fixedly connected with the longitudinal shaft 8, the other end of each transverse shaft 9 is fixedly connected with the annular bracket 10, and the linkage gear 6 and the synchronous gear 7 are both conical gears. The outer wall of the ring-shaped support 10 is provided with 24 mounting grooves for mounting the stator windings 11 at equal intervals along the circumference, and each stator winding 11 is arranged in a corresponding one of the mounting grooves.
In this scheme, two rotors longitudinal symmetry set up, and the axis of two rotors is located same straight line. The stator is positioned between the two rotors and is used for driving the two rotors to rotate oppositely. The synchronous mechanism is used for enabling the upper rotor and the lower rotor to synchronously rotate forwards and reversely, and the rotating speeds of the two rotors are guaranteed to be the same. The upper rotor and the lower rotor rotate oppositely at the same speed and can drive the upper rotor and the lower rotor to rotate oppositely at the same speed. The driving mechanism is provided with only one stator, so that the weight is reduced, the cost is saved, the structure is simple, and the control is easy.
When the rotors rotate, the linkage gears are driven to rotate, the upper linkage gears and the lower linkage gears rotate reversely to output force to the synchronous gears to drive the synchronous gears to rotate, and the synchronous gears enable the upper rotors and the lower rotors to rotate synchronously and reversely, so that the two rotors are guaranteed to have the same rotating speed. The linkage gear and the synchronous gear are tightly meshed, so that the linkage gear and the synchronous gear rotate at equal proportional speed, and the upper rotor and the lower rotor can only rotate in opposite directions at the same speed due to the existence of the synchronous mechanism.
24 stator windings and 28 permanent magnets in the upper rotor and the lower rotor jointly form a driving mechanism, and the purpose of converting electric energy into mechanical energy is achieved. The number of the permanent magnets arranged on the upper rotor and the lower rotor is 28, the upper rotor and the lower rotor are in mirror symmetry, and the permanent magnets can be interchanged when in use, so that the use is not influenced.
The top magnetic pole and the bottom magnetic pole of the stator winding are opposite, and the top magnetic pole and the bottom magnetic pole of the stator winding are continuously changed so as to push the upper rotor and the lower rotor to oppositely rotate.
Claims (8)
1. The utility model provides a coaxial long and short wing advancing device, its characterized in that includes rotor (1), lower rotor (2) and is used for driving rotor (1), synchronous opposite direction pivoted actuating mechanism (3) of lower rotor (2), the axis of going up rotor (1) is located the collinear with the axis of lower rotor (2), rotor (2) length is greater than rotor (1) length down.
2. A coaxial long and short wing propulsion device according to claim 1, characterized in that the lower rotor (2) has a length 1.15 to 1.35 times the length of the upper rotor (1).
3. A coaxial long and short wing propulsion device according to claim 1, characterized in that said driving mechanism (3) comprises a first dc brushless motor (4) and a second dc brushless motor (5), said first dc brushless motor (4) being adapted to drive the upper rotor (1) in rotation, said second dc brushless motor (5) being adapted to drive the lower rotor (2) in rotation.
4. A coaxial long and short wing propulsion device according to claim 1, characterized in that the driving mechanism (3) comprises two rotors which are arranged up and down symmetrically, a stator for driving the two rotors to rotate oppositely is arranged between the two rotors, a synchronizing mechanism is arranged between the two rotors, the two rotors are connected through the synchronizing mechanism, the synchronizing mechanism is used for enabling the two rotors to synchronously rotate oppositely and at the same speed, the upper rotor is used for driving the upper rotor (1) to rotate, and the lower rotor is used for driving the lower rotor (2) to rotate.
5. A coaxial long and short wing propulsion device according to claim 4, characterized in that the synchronizing mechanism comprises two linked gears (6) and at least one synchronizing gear (7), one linked gear (6) is coaxially connected with the upper rotor, the other linked gear (6) is coaxially connected with the lower rotor, the linked gears (6) are sleeved on the longitudinal axis (8) arranged longitudinally through bearings, the synchronizing gear (7) is located between the two linked gears (6) and is meshed with the two linked gears (6), and the synchronizing gear (7) is sleeved on the transverse axis (9) arranged transversely through bearings.
6. A coaxial long and short wing propulsion device according to claim 5, characterized in that one end of the transverse shaft (9) is fixedly connected with the longitudinal shaft (8), and the other end of the transverse shaft (9) is fixedly connected with the stator.
7. A coaxial long and short wing propulsion device according to claim 4, characterized in that the stator comprises an annular support (10) coaxial with the longitudinal axis (8), the outer wall of the annular support (10) is circumferentially provided with a plurality of stator windings (11), the stator windings (11) are arranged longitudinally, the rotor comprises a circular turntable (12) coaxial with the longitudinal axis (8), the outer edge of the circular turntable (12) is circumferentially provided with a plurality of permanent magnets (13), the adjacent permanent magnets (13) on each circular turntable (12) face opposite poles at one end of the stator windings (11), the permanent magnets (13) on the upper rotor are located above the top poles of the stator windings (11), and the permanent magnets (13) on the lower rotor are located below the bottom poles of the stator windings (11).
8. A coaxial long and short wing propulsion device according to claim 7, characterized in that the stator windings (11) are distributed at equal intervals along the outer wall of the ring-shaped support (10), and the permanent magnets (13) are distributed at equal intervals along the outer edge of the circular turntable (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921522303.4U CN210761239U (en) | 2019-09-12 | 2019-09-12 | Coaxial long and short wing propulsion unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921522303.4U CN210761239U (en) | 2019-09-12 | 2019-09-12 | Coaxial long and short wing propulsion unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210761239U true CN210761239U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921522303.4U Active CN210761239U (en) | 2019-09-12 | 2019-09-12 | Coaxial long and short wing propulsion unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210761239U (en) |
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2019
- 2019-09-12 CN CN201921522303.4U patent/CN210761239U/en active Active
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