CN220410928U - Gear transmission structure of electric coaxial unmanned helicopter - Google Patents
Gear transmission structure of electric coaxial unmanned helicopter Download PDFInfo
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- CN220410928U CN220410928U CN202322155253.3U CN202322155253U CN220410928U CN 220410928 U CN220410928 U CN 220410928U CN 202322155253 U CN202322155253 U CN 202322155253U CN 220410928 U CN220410928 U CN 220410928U
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Abstract
The utility model provides a gear transmission structure of an electric coaxial unmanned helicopter, which consists of a main upper plate, a main middle plate and a main lower plate, wherein an upper rotor motor and a lower rotor motor are fixed on the upper side of the main upper plate, an upper rotor motor and a lower rotor motor are respectively driven by an output shaft of the upper rotor motor and the lower rotor motor through gear transmission, an upper rotor transmission shaft is sleeved outside a fixed shaft, a lower rotor transmission shaft is sleeved outside the upper rotor transmission shaft, two shafts are of independent rotating structures, the rotating directions of the two shafts are controlled by respective motors, and the rotating directions of the two shafts are opposite. The structure can better realize the motion transmission of the electric coaxial unmanned helicopter with double motors and double steering engines, the two motors respectively control the upper rotor wing and the lower rotor wing, the lifting motion of the coaxial unmanned helicopter can be realized by controlling the rotating speed, and the yaw motion can be realized by controlling the rotating speed difference of the two motors.
Description
Technical Field
The utility model relates to the field of gear transmission, in particular to a gear transmission structure of an electric coaxial unmanned helicopter.
Background
As unmanned aerial vehicles are increasingly widely used, requirements for unmanned aerial vehicles are increasingly high. At present, the transmission structure of the unmanned aerial vehicle is divided into:
full differential range manipulation: the device consists of a motor and six steering engines, wherein the transmission is bevel gear transmission, and as the motor is only one motor, the required motion transmission is difficult to realize, the whole transmission structure is heavy, the number of the steering engines is large, the whole device cannot be miniaturized and barrel-shaped, the control system is complicated due to the large number of the steering engines, and the stability is poor;
semi-differential range manipulation: the steering engine consists of a motor and four steering engines, the transmission is bevel gear transmission, but the steering mechanism is complex, the number of the steering engines is large, the whole engine cannot be miniaturized and designed in a cylindrical manner, and the control system is complex and has poor stability due to the large number of the steering engines;
differential operation of double motors: the steering engine consists of two motors and three steering engines, the transmission is straight-wheel transmission, but the number of the steering engines is relatively large, the whole engine cannot be miniaturized and designed in a cylindrical mode, and the control system is complicated and complex due to the large number of the steering engines, so that the stability is poor;
other coaxial helicopters are mostly oil-driven machines, and the main gear reducing and reducing set structure is heavy and complex relative to the electric motor, so that the coaxial helicopter is not suitable for a small unmanned helicopter.
Disclosure of Invention
The utility model provides an electric coaxial unmanned helicopter gear transmission structure based on at least one of the technical problems.
An electric coaxial unmanned helicopter gear transmission structure comprising: the main gear reducing mechanism consists of a main upper reducing plate, a main middle reducing plate and a main lower reducing plate from top to bottom, and the main upper reducing plate, the main middle reducing plate and the main lower reducing plate are fixedly supported by upright posts; a fixed shaft is fixed in the middle of the main reducing lower plate, and penetrates through the main reducing gear mechanism; an upper rotor wing transmission shaft is sleeved outside the fixed shaft, the lower end of the upper rotor wing transmission shaft is fixedly connected with the middle part of an upper rotating gear, and the upper rotating gear is positioned at the lower side of the main reducing plate; the lower rotor transmission shaft is sleeved outside the upper rotor transmission shaft, the lower end of the lower rotor transmission shaft is fixedly connected with the middle part of a lower rotating gear, and the lower rotating gear is positioned between the main reducing plate and the main reducing upper plate; the upper rotor motor and the lower rotor motor are fixed on the upper side of the main upper reduction plate through motor fixing plates, the upper rotor motor drives a pinion on a first output shaft through a coupler, and the pinion on the first output shaft is meshed with the upper rotating gear; the lower rotor motor drives a pinion on a second output shaft through a coupler, and the pinion on the second output shaft is meshed with the lower rotary gear; and a pitching steering engine and a transverse rolling steering engine are further arranged on the upper side of the main upper reduction plate.
In one possible implementation, the fixed shaft is fixed to the main relief plate by an inner shaft flange.
In one possible implementation manner, the lower part of the upper rotor transmission shaft is further provided with an upper deep groove ball bearing and a lower deep groove ball bearing, the upper deep groove ball bearing is installed in the middle of the main reducing plate, the lower deep groove ball bearing is installed in the middle of the main reducing plate, and the upper rotary gear is located between the upper deep groove ball bearing and the lower deep groove ball bearing.
In one possible implementation manner, the lower rotor shaft lower portion is further provided with an upper end flange bearing and a lower end flange bearing, the upper end flange bearing is mounted in the middle of the main reducing upper plate, the lower end flange bearing is mounted in the middle of the main reducing plate, and the lower rotor gear is located between the upper end flange bearing and the lower end flange bearing.
In one possible implementation, the underside of the main relief lower plate is provided with a reinforcing plate.
In one possible implementation manner, a fixed shaft sleeve is further arranged on the outer side of the lower rotor transmission shaft, and the lower end of the fixed shaft sleeve is fixed on the main upper reduction plate.
The beneficial effects are that:
1. the structure can better realize the motion transmission of the electric coaxial unmanned helicopter with double motors and double steering engines, the two motors respectively control the upper rotor wing and the lower rotor wing, the lifting motion of the coaxial unmanned helicopter can be realized by controlling the rotating speed, and the yaw motion can be realized by controlling the rotating speed difference of the two motors;
2. the double motors respectively control the upper rotor wing and the lower rotor wing, the double rudder engine respectively controls pitching and rolling, the upper rotor wing and the lower rotor wing have no rotation speed coupling phenomenon, the upper rotor wing and the lower rotor wing can realize the periodic pitch change of the coaxial unmanned helicopter through the connecting rod and the upper inclined disc and the lower inclined disc, and the principle of the whole flight control system is simple and clear, so that a flight control program with stable performance is conveniently written;
3. the whole cylindrical unmanned helicopter is convenient to manufacture into a cylindrical structure, and is convenient for cylindrical emission and cluster unmanned aerial vehicle group emission.
Drawings
FIG. 1 shows a schematic structural view of the present utility model;
FIG. 2 shows a schematic side view of the present utility model;
FIG. 3 shows a cross-section A-A of the present utility model;
fig. 4 shows a schematic top view of the present utility model.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
Example 1
The gear transmission structure of the electric coaxial unmanned helicopter shown in fig. 1-4 comprises: go up rotor motor 1, lower rotor motor 2, main gear mechanism that subtracts, go up rotor transmission shaft 3, lower rotor transmission shaft 4, main gear mechanism that subtracts is by from the top down main subtracting upper plate 5, main subtracting the board 6, main subtracting the board 7 constitutes down, main subtracting the upper plate 5, main subtracting between the board 6 and the board 7 is subtracted down to main subtracting the board through stand 8 support fixedly, stand 8 is located the edge of board, stand 8's quantity is eight, main subtracting the upper plate 5, main the middle part that subtracts the board 6, main subtracting the board 7 is equipped with the through-hole that is used for fixing all kinds of bearings.
The upper rotor motor 1 and the lower rotor motor 2 are fixed on the upper side of the main upper reduction plate 5 through a motor fixing plate 9, the directions of the upper rotor motor 1 and the lower rotor motor 2 are specified to be the front directions, and a pitching steering engine 10 and a rolling steering engine 11 are both positioned at the rear part.
Wherein pitch steering engine 10 controls pitch motion of the coaxial helicopter, and roll steering engine 11 is positioned at the right side of pitch steering engine 10 at 90 degrees, and controls roll motion of the coaxial helicopter.
The fixed shaft 12 is fixed in the middle of the main reducing lower plate 7 through an inner shaft flange 13, and the fixed shaft 12 passes through the main reducing gear mechanism; the fixed axle 12 outside cover has rotor transmission shaft 3, and rotor transmission shaft 3 lower extreme is fixed with the middle part connection of last rotary gear 14, and last rotary gear 14 is located main subtracting board 6 downside, goes up rotor motor 1 and drives the pinion 18 on the first output shaft 17 through shaft coupling 16 and drive and go up rotary gear 14 rotation, and then drive rotor transmission shaft 3 anticlockwise rotation.
The outer side of the upper rotor transmission shaft 3 is sleeved with a lower rotor transmission shaft 4, the lower end of the lower rotor transmission shaft 4 is fixedly connected with the middle part of a lower rotary gear 15, and the lower rotary gear 15 is positioned between the main reducing plate 6 and the main reducing upper plate 5; the lower rotor motor 2 drives a pinion 18 on a second output shaft 19 through a coupler 16, and further drives the lower rotor transmission shaft 4 to rotate clockwise.
The fixed shaft 12, the upper rotor shaft 3, and the lower rotor shaft 4 are the same central shaft, and the upper rotor shaft 3 and the lower rotor shaft 4 do not interfere with each other when rotating.
In one possible implementation, the lower part of the upper rotor shaft 3 is further provided with an upper deep groove ball bearing 20 and a lower deep groove ball bearing 21, the upper deep groove ball bearing 20 is installed in the middle of the main reducing plate 6, the lower deep groove ball bearing 21 is installed in the middle of the main reducing plate 7, and the upper rotating gear 14 is located between the upper deep groove ball bearing 20 and the lower deep groove ball bearing 21.
The deep groove ball bearings fixedly arranged up and down can ensure that the upper rotor transmission shaft 3 can rotate stably at a high speed.
In one possible implementation, the lower rotor shaft 4 is further provided with an upper flange bearing 22 and a lower flange bearing 23 at the lower part, the upper flange bearing 22 is mounted at the middle part of the main reducing upper plate 5, the lower flange bearing 23 is mounted at the middle part of the main reducing plate 6, and the lower rotary gear 15 is located between the upper flange bearing 22 and the lower flange bearing 23.
The flange bearings fixedly arranged up and down can ensure that the lower rotor transmission shaft 4 can rotate stably at a high speed.
In one possible implementation, the lower side of the main reducing lower plate 7 is provided with a reinforcing plate 24, and the reinforcing plate 24 can strengthen the structural strength of the main reducing gear mechanism and ensure the stability of the main reducing gear mechanism in operation.
In one possible implementation manner, the outer side of the lower rotor transmission shaft 4 is further provided with a fixed shaft sleeve 25, the lower end of the fixed shaft sleeve 25 is fixed on the main upper reduction plate 5, and the fixed shaft sleeve 25 is arranged on the outer side of the lower rotor transmission shaft 4, so that a steering engine and a motor located on the main upper reduction plate 5 can be prevented from touching the rotating lower rotor transmission shaft 4 due to unexpected errors.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. An electric coaxial unmanned helicopter gear transmission structure, comprising: the main gear reducing mechanism consists of a main upper reducing plate, a main middle reducing plate and a main lower reducing plate from top to bottom, and the main upper reducing plate, the main middle reducing plate and the main lower reducing plate are fixedly supported by upright posts; a fixed shaft is fixed in the middle of the main reducing lower plate, and penetrates through the main reducing gear mechanism; an upper rotor wing transmission shaft is sleeved outside the fixed shaft, the lower end of the upper rotor wing transmission shaft is fixedly connected with the middle part of an upper rotating gear, and the upper rotating gear is positioned at the lower side of the main reducing plate; the lower rotor transmission shaft is sleeved outside the upper rotor transmission shaft, the lower end of the lower rotor transmission shaft is fixedly connected with the middle part of a lower rotating gear, and the lower rotating gear is positioned between the main reducing plate and the main reducing upper plate; the upper rotor motor and the lower rotor motor are fixed on the upper side of the main upper reduction plate through motor fixing plates, the upper rotor motor drives a pinion on a first output shaft through a coupler, and the pinion on the first output shaft is meshed with the upper rotating gear; the lower rotor motor drives a pinion on a second output shaft through a coupler, and the pinion on the second output shaft is meshed with the lower rotary gear; and a pitching steering engine and a transverse rolling steering engine are further arranged on the upper side of the main upper reduction plate.
2. The electric coaxial unmanned helicopter gear transmission of claim 1, wherein the stationary shaft is secured to the main relief plate by an inner shaft flange.
3. The electric coaxial unmanned helicopter gear transmission structure according to claim 1, wherein the upper rotor shaft lower portion is further provided with an upper end deep groove ball bearing and a lower end deep groove ball bearing, the upper end deep groove ball bearing is mounted in the middle of the main reducing plate, the lower end deep groove ball bearing is mounted in the middle of the main reducing plate, and the upper rotary gear is located between the upper end deep groove ball bearing and the lower end deep groove ball bearing.
4. The electric coaxial unmanned helicopter gear transmission structure according to claim 1, wherein the lower rotor shaft lower portion is further provided with an upper end flange bearing and a lower end flange bearing, the upper end flange bearing is mounted in the middle of the main reducing upper plate, the lower end flange bearing is mounted in the middle of the main reducing plate, and the down-rotating gear is located between the upper end flange bearing and the lower end flange bearing.
5. The electric coaxial unmanned helicopter gear transmission structure according to claim 1, wherein the underside of the main relief plate is provided with a reinforcing plate.
6. The electric coaxial unmanned helicopter gear transmission structure according to claim 1, wherein a fixed shaft sleeve is further arranged on the outer side of the lower rotor transmission shaft, and the lower end of the fixed shaft sleeve is fixed on the main upper reduction plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322155253.3U CN220410928U (en) | 2023-08-11 | 2023-08-11 | Gear transmission structure of electric coaxial unmanned helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322155253.3U CN220410928U (en) | 2023-08-11 | 2023-08-11 | Gear transmission structure of electric coaxial unmanned helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220410928U true CN220410928U (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322155253.3U Active CN220410928U (en) | 2023-08-11 | 2023-08-11 | Gear transmission structure of electric coaxial unmanned helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220410928U (en) |
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2023
- 2023-08-11 CN CN202322155253.3U patent/CN220410928U/en active Active
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