CN210761238U - Coaxial wide and narrow wing propulsion device - Google Patents
Coaxial wide and narrow wing propulsion device Download PDFInfo
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- CN210761238U CN210761238U CN201921521020.8U CN201921521020U CN210761238U CN 210761238 U CN210761238 U CN 210761238U CN 201921521020 U CN201921521020 U CN 201921521020U CN 210761238 U CN210761238 U CN 210761238U
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Abstract
The utility model discloses a coaxial wide and narrow 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, the lower rotor broadband is greater than the upper rotor broadband. The utility model discloses a lower rotor width is greater than the design of last rotor width 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 wide and narrow 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 consistent length and width, 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 wide and narrow wing advancing device, its adopt down the design that the rotor width is greater than the top rotor width for the wind-force that produces when the 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 wide narrow 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, the lower rotor broadband is greater than the upper rotor broadband.
In this scheme, lower rotor width is greater than upper rotor width, and advancing device during operation, upper rotor, lower rotor rotate, and lower rotor can be better utilize the wind-force that produces when upper rotor rotates to whole propulsion efficiency has been improved.
Preferably, the width of the lower rotor wing is 1.4 to 1.6 times of the wide band of the upper rotor wing. A = lower rotor width/upper rotor width, the larger the distance between the lower rotor and the upper rotor, the larger the value of a.
Preferably, the lower rotor length is equal to or greater than the upper rotor length.
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.
The utility model has the advantages that: the design that the width 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 embodiment 3;
FIG. 3 is a schematic view of the internal structure of a drive mechanism of embodiment 3;
FIG. 4 is a top view of the ring-shaped stent of example 3;
FIG. 5 is a side view of the ring-shaped stent of example 3;
fig. 6 is a schematic structural view of a rotor according to embodiment 3.
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 wide and narrow wing propulsion device of the embodiment includes, as shown in fig. 1, 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, an axis of the upper rotor 1 and an axis of the lower rotor 2 are located on the same straight line, a length of the lower rotor 2 is equal to a length of the upper rotor 1, and a width of the lower rotor 2 is 1.4 to 1.6 times a width of the upper rotor 1.
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 width is greater than upper rotor width, and advancing device during operation, upper rotor, lower rotor rotate, and lower rotor can be better utilize the wind-force that produces when upper rotor rotates 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.
A = lower rotor width/upper rotor width, the larger the distance between the lower rotor and the upper rotor, the larger the value of a. In the rotor combination, the upper rotor is a standard universal rotor, and the lower rotor needs to be designed specifically to achieve the optimal combination, but can also be used after being truncated by a longer standard rotor.
Example 2: in the coaxial wide-narrow wing propulsion device of the embodiment, the length of the lower rotor wing 2 is greater than that of the upper rotor wing 1, and the rest of the structure is the same as that of the embodiment 1.
Example 3: the coaxial wide and narrow 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 synchronously and reversely, an axis of the upper rotor 1 and an axis of the lower rotor 2 are located on the same straight line, a length of the lower rotor 2 is equal to a length of the upper rotor 1, and a width of the lower rotor 2 is 1.4 to 1.6 times a width of the upper rotor 1.
A = lower rotor width/upper rotor width, the larger the distance between the lower rotor and the upper rotor, the larger 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 wide and narrow wing advancing device, its characterized in that includes rotor (1), lower rotor (2) and is used for driving synchronous opposite direction pivoted actuating mechanism (3) of rotor (1), lower rotor (2), the axis of rotor (1) is located the collinear with the axis of rotor (2) down, rotor (2) broadband is greater than rotor (1) broadband down.
2. A coaxial wide and narrow wing propulsion device according to claim 1, characterized by the fact that the lower rotor (2) is 1.4 to 1.6 times wider than the upper rotor (1).
3. A coaxial wide and narrow wing propulsion device according to claim 1, characterized by the fact that the lower rotor (2) has a length equal to or greater than the length of the upper rotor (1).
4. A coaxial wide and narrow wing propulsion device according to claim 1, characterized in that the driving mechanism (3) comprises a first dc brushless motor (4) and a second dc brushless motor (5), the first dc brushless motor (4) being used to drive the upper rotor (1) in rotation, the second dc brushless motor (5) being used to drive the lower rotor (2) in rotation.
5. A coaxial wide and narrow wing propulsion device according to claim 1, characterized in that the driving mechanism (3) comprises two rotors which are arranged symmetrically up and down, a stator is arranged between the two rotors for driving the two rotors to rotate oppositely, 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.
6. A coaxial wide and narrow wing propulsion device according to claim 5, characterized in that the synchronizing mechanism comprises two linked gears (6) and at least one synchronizing gear (7), one linked gear (6) being coaxially connected to the upper rotor and the other linked gear (6) being coaxially connected to the lower rotor, the linked gears (6) being journalled on longitudinally arranged longitudinal axes (8) by bearings, the synchronizing gear (7) being located between the two linked gears (6) and meshing with the two linked gears (6), the synchronizing gear (7) being journalled on a transversely arranged transverse axis (9) by bearings.
7. A coaxial wide and narrow wing propulsion device according to claim 6, characterized in that one end of the transverse shaft (9) is fixedly connected to the longitudinal shaft (8) and the other end of the transverse shaft (9) is fixedly connected to the stator.
8. A coaxial wide and narrow wing propulsion device according to claim 5, 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 provided with a plurality of stator windings (11) along the circumference, the stator windings (11) are arranged along the longitudinal direction, the rotor comprises a circular turntable (12) coaxial with the longitudinal axis (8), the outer edge of the circular turntable (12) is provided with a plurality of permanent magnets (13) along the circumference, 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921521020.8U CN210761238U (en) | 2019-09-12 | 2019-09-12 | Coaxial wide and narrow wing propulsion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921521020.8U CN210761238U (en) | 2019-09-12 | 2019-09-12 | Coaxial wide and narrow wing propulsion device |
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| Publication Number | Publication Date |
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| CN210761238U true CN210761238U (en) | 2020-06-16 |
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| CN201921521020.8U Active CN210761238U (en) | 2019-09-12 | 2019-09-12 | Coaxial wide and narrow wing propulsion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811872A (en) * | 2020-07-17 | 2020-10-23 | 核工业北京化工冶金研究院 | Device of closely knit rock core model post segmentation sample that hardens |
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2019
- 2019-09-12 CN CN201921521020.8U patent/CN210761238U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811872A (en) * | 2020-07-17 | 2020-10-23 | 核工业北京化工冶金研究院 | Device of closely knit rock core model post segmentation sample that hardens |
| CN111811872B (en) * | 2020-07-17 | 2023-05-23 | 核工业北京化工冶金研究院 | Device for sampling core model column section by compaction |
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