CN116588329A

CN116588329A - Purely-driven multi-paddle power glider

Info

Publication number: CN116588329A
Application number: CN202310783778.3A
Authority: CN
Inventors: 金俸奭; 毛勇彪; 李武成; 吴成全; 刘西庆; 吴杰
Original assignee: Zhejiang Duert Wheel Co ltd
Current assignee: Zhejiang Duert Wheel Co ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-08-15

Abstract

The invention discloses a pure electric multi-propeller power glider, which comprises a frame, a propulsion device and a power supply device, wherein the propulsion device comprises a driving motor and propellers, the propellers are positioned at the rear side of the frame, a protective frame is arranged on the frame, the driving motor comprises an outer rotor and an inner stator, an output shaft I is arranged on the outer rotor, a reversing mechanism is arranged in an inner stator, an output end of the reversing mechanism is connected with an output shaft II, an input end of the reversing mechanism is connected with the output shaft I, the output shaft I axially penetrates through the center of the output shaft II, the output shaft I and the output shaft II can relatively rotate, the reversing mechanism receives power output by the output shaft I and transmits the power to the output shaft II, so that the output shaft II outputs rotary power opposite to one direction of the output shaft I, the output shaft I and the output shaft II are respectively connected with the propellers, and when the driving motor is started, the output shaft I and the output shaft II respectively drive the propellers to rotate in opposite directions, and yaw torques generated by the propellers are mutually offset.

Description

Purely-driven multi-paddle power glider

Technical Field

The invention relates to a power glider, in particular to a pure electric multi-paddle power glider.

Background

The electric glider, also called as a power parachute or a glider, is a type of a flight parachute, is a type of a personal leisure flight vehicle, and is originated in Europe in the 70 s and is transmitted into China in the last 80 s. Mainly comprises two parts of paraglider and an engine, and is one of the limit sports in the world. By providing a small engine for the electric glider, the thrust of the propeller driven by the engine and the lifting force of the parachute wing are utilized, so that the free lifting on the flat ground is not a problem any more, and the existing electric glider is also driven by a motor.

For example, patent CN212267861U discloses a name of electrically driven power umbrella power plant and electrically driven power umbrella comprising: the device comprises a machine body, a power battery system, a propeller system and a control handle; the machine body comprises a central disc, a support arm and a protective frame; the center plate is connected with the support arm which is connected with the protective frame; the section of the support arm along the radial direction of the machine body is a pneumatic wing section and is used for generating a moment for counteracting the reverse moment of the propeller system; the power battery system and the propeller system are arranged on the central disc, the power battery system is connected with the propeller system, and the propeller system is connected with the control handle.

For example, patent CN201553300U discloses a name of an electric power umbrella, which comprises a parafoil for providing lift force for the power umbrella, a protective frame is suspended by a parachute rope, a driving device is arranged in the protective frame, a propeller is arranged on a propeller mounting plate of the driving device, two motors are connected with a large gear through respective small gears, the large gear is connected with the propeller mounting plate, and the propeller is arranged on the propeller mounting plate.

The problem that current electric glider exists, current electric glider on the market generally adopts the structure of single screw, provides thrust through single screw is rotatory and promotes electric glider and advance, and single screw rotation exists great yaw torque to electric glider for electric glider flight is unstable, and is unfavorable for user control electric glider.

Disclosure of Invention

Based on the above-mentioned electric glider single screw, when flying, single screw rotation has great yaw torque to electric glider for electric glider flight is unstable, and is unfavorable for the problem of user control electric glider, the invention provides a pure electric drive's multi-oar power glider.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a pure electric drive's multi-oar power glider, including frame, thrust unit and power supply unit are all installed in the frame, and power supply unit is connected with thrust unit electricity and is used for supplying power to thrust unit, and thrust unit is including fixing the driving motor in the frame and connecting the screw on driving motor output shaft, and the screw is located the frame rear side and is used for providing thrust to the frame, is equipped with the protective frame that is used for preventing glider's parachute rope and screw contact in the frame, its characterized in that, driving motor is external rotor motor, and driving motor includes external rotor and internal stator, is provided with the output shaft that is used for outputting rotary power on the external rotor, the inside of internal stator is provided with reversing mechanism, reversing mechanism's output is connected with output shaft two, reversing mechanism's input connection output shaft one, output shaft two output shaft and output shaft two output shaft's the center axially pass, the center of output shaft two output shaft is equipped with along the axial direction of seting up the center hole that is used for supplying power first output shaft, output shaft and output shaft two can relative rotations to output shaft and output shaft two, and output shaft two output shaft and two opposite directions are rotated when the first and second output shaft and the second output shaft is rotated, two output shaft and two output shaft that the opposite direction, and two output shaft that makes.

The further preferable technical scheme of the invention is as follows: the driving motor and the power supply device are arranged on the rear side of the frame, the power supply device is located at the position, close to the bottom, of the frame, and the driving motor is located above the power supply device.

The further preferable technical scheme of the invention is as follows: the rotation speed of the first output shaft is equal to the rotation speed of the second output shaft.

The further preferable technical scheme of the invention is as follows: the inner stator is hollow and provided with a containing cavity, the reversing mechanism is arranged in the containing cavity, the output shaft I is arranged on the rotation axis of the outer rotor and penetrates through the center of the inner stator, and the output shaft I penetrates through the containing cavity in the inner stator and is connected with the input end of the reversing mechanism.

The further preferable technical scheme of the invention is as follows: the reversing mechanism is a gear set for reversing transmission, the gear set comprises a driving bevel gear, a driven bevel gear and a transmission bevel gear, the driving bevel gear and the driven bevel gear are oppositely arranged, the axis of the driving bevel gear is coincident with the axis of the driven bevel gear, the driving bevel gear is connected to an output shaft I and driven to coaxially rotate by the output shaft I, the driven bevel gear is rotatably connected to an inner stator, the transmission bevel gear is arranged on the inner wall of the accommodating cavity, the transmission bevel gear is arranged between the driving bevel gear and the driven bevel gear, two sides of the transmission bevel gear are respectively meshed with the driving bevel gear and the driven bevel gear for transmission, when the output shaft I rotates, the rotation directions of the driving bevel gear and the driven bevel gear are opposite, the output shaft II is connected to the driven bevel gear, and the axis of the transmission bevel gear is perpendicular to the axis of the driving bevel gear.

The further preferable technical scheme of the invention is as follows: the outer rotor comprises a housing covering the outer side of the inner stator and an end cover connected to one end of the housing, the end cover is rotatably arranged at one end of the inner stator, a fixing seat is fixed at the other end of the inner stator, a ventilation gap is formed between the outer rotor and the inner stator, the end cover and the fixing seat are covered at two ends of the ventilation gap, a plurality of first ventilation holes are formed in the end cover, a plurality of second ventilation holes are formed in the fixing seat, and the first ventilation holes and the second ventilation holes are respectively communicated with two ends of the ventilation gap to form a heat dissipation air path.

The further preferable technical scheme of the invention is as follows: the screw propeller I connected with the output shaft I is positioned at the rear side of the screw propeller II connected with the output shaft II, a fastening bolt is arranged between the screw propeller I and the output shaft I, the fastening bolt and the output shaft I are respectively positioned at two sides of the screw propeller I, a middle through hole is arranged in the center of the screw propeller I, the fastening bolt is rotatably inserted into the middle through hole to be in threaded connection with the output shaft I at the other side, the screw propeller I is arranged on the output shaft I, a limiting component is arranged between the screw propeller I and the output shaft I to limit the relative rotation of the screw propeller I and the output shaft I, a locking piece is arranged on the screw propeller I, the locking piece can move in the first axis direction relative to the screw propeller I so as to move and switch between a locking position and an unlocking position,

When the locking piece moves to the locking position, the locking piece limits the relative rotation between the fastening bolt and the first screw propeller, and when the locking piece moves to the unlocking position, the relative rotation between the fastening bolt and the first screw propeller is restored.

The further preferable technical scheme of the invention is as follows: the locking piece cover is established in the outside of fastening bolt, and can follow the length extending direction relative fastening bolt of fastening bolt and remove to remove the switching between locking position and unblock position, be equipped with the pore that is used for fastening bolt to pass on the locking piece, relative rotation restriction between locking piece and the screw, fastening bolt includes the body of rod and connects the head at body of rod one end, the locking piece sets up in middle through-hole, fastening bolt's body of rod passes the pore is connected with output shaft one, and fastening bolt's head size is greater than the opening size of pore, is equipped with reset spring drive locking piece in the middle through-hole to the head one side of fastening bolt and removes to the locking position, have the interval between fastening bolt's head and the middle through-hole inner wall and supply to dismantle fastening bolt's instrument to insert, when the tool cover is at fastening bolt's head, the instrument inserts in the interval and promotes the locking piece overcomes reset spring's elastic force and removes to the unblock position.

The further preferable technical scheme of the invention is as follows: the protective frame comprises a plurality of protective brackets arranged on the outer edge of the frame, the protective brackets are arranged around the propeller, a protective rope is penetrated between the protective brackets to form a protective net cover, the protective brackets comprise a first bracket and a second bracket, one end of the first bracket is hinged with the frame, one end of the second bracket is hinged with the other end of the first bracket, so that the first bracket and the second bracket can be overturned backwards of the frame around respective hinge points to a state that the protective brackets are fully unfolded, or the protective brackets are folded towards the center of the front side of the frame for accommodating a human body,

when the first support and the second support are turned backwards towards the frame and are in a state that the protective support is fully unfolded, a first locking assembly is arranged between the first support and the frame and used for locking relative rotation of the first support and the frame, a second locking assembly is arranged between the second support and the first support and used for locking relative rotation of the first support and the second support, and the protective screen cover is arranged on the outer side of the propeller and used for protecting an umbrella rope of the electric glider from touching the propeller.

The further preferable technical scheme of the invention is as follows: the left side and the right side of the bottom of the frame are provided with bottom brackets positioned below the protective brackets, two ends of the protective rope are respectively connected to the bottom brackets at two sides, the rope body of the protective rope sequentially passes through the protective brackets from one side of the frame to the other side, the protective brackets are provided with rope penetrating holes for the protective rope to pass through, the bottom brackets are hinged on the frame, so that the bottom brackets can be folded to the rear side of the frame and unfolded below the screw or to the front side of the frame,

When the bottom bracket and the protective bracket are simultaneously turned to the unfolded state to the rear side of the frame, a third locking component is arranged between the bottom bracket and the frame in the unfolded state and used for locking the relative rotation of the bottom bracket and the frame, the frame body of the bottom bracket is positioned at one side of the upper adjacent protective bracket close to the propeller,

the protective rope is changed from a tensioned state to a relaxed state when the bottom bracket and the protective bracket are simultaneously folded toward the front side of the frame.

Compared with the prior art, the electric glider has the advantages that the first output shaft for outputting rotary power is arranged on the outer rotor, the reversing mechanism is arranged in the inner stator, the output end of the reversing mechanism is connected with the second output shaft, the input end of the reversing mechanism is connected with the first output shaft, the reversing mechanism receives the power output by the first output shaft and transmits the power to the second output shaft, the second output shaft outputs rotary power opposite to the first output shaft in one direction, the first output shaft and the second output shaft are both connected with propellers, when the driving motor is started, the first output shaft and the second output shaft are respectively driven to rotate, the rotation directions of the two propellers are opposite, yaw torque of the two propellers opposite in rotation direction can offset each other when the propellers rotate, so that the flying stability of the electric glider is ensured, and a user can control the electric glider conveniently.

Drawings

The invention will be described in further detail below in connection with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the invention. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.

FIG. 1 is a diagram showing a state of use of a power glider when a protective bracket is unfolded;

FIG. 2 is a second view of the power glider in use when the protective stent is deployed;

FIG. 3 is a schematic view of the propulsion device mounted to the mounting frame;

FIG. 4 is a schematic view of the overall structure of the propulsion device;

FIG. 5 is a schematic diagram of the overall structure of the propulsion device;

FIG. 6 is a split view of various parts of the propulsion device;

FIG. 7 is a schematic illustration in cross-section of a propulsion device;

FIG. 8 is a schematic cut-away view of the pusher with the latch member moved to the latched position;

FIG. 9 is a schematic cut-away view of the pusher with the latch member moved to the unlatched position;

FIG. 10 is a split view of the output shaft II and the propeller II;

FIG. 11 is a partially exploded view of a first propeller;

FIG. 12 is a schematic view of a construction of a fastening bolt;

fig. 13 is a disassembled view of an outer rotor and an inner stator of the driving motor;

FIG. 14 is a diagram showing the connection relationship between the reversing mechanism and the first output shaft;

FIG. 15 is a split view of the output shaft I and drive bevel gear;

FIG. 16 is a view of the protective cradle and bottom cradle in a folded condition;

FIG. 17 is a schematic view of the structure of the protective bracket;

FIG. 18 is a split view of a first bracket and a second bracket;

FIG. 19 is a schematic view in cross-section of the protective stent in its fully deployed state;

FIG. 20 is a schematic cross-sectional view of the bottom bracket in a fully deployed state;

FIG. 21 is an enlarged view of a portion of FIG. 19 at A;

fig. 22 is a partial enlarged view at B of fig. 20.

In the figure: 1. a frame; 2. a protective rope; 3. a bottom bracket; 4. a mounting frame; 5. a protective bracket; 6. flanging; 7. a propeller; 8. threading the rope hole; 9. a protective net cover; 10. a suspension arm; 11. a main frame; 12. a fixing plate; 13. a driving motor; 14. a second propeller; 15. a first propeller; 16. spacing; 17. a fastening bolt; 18. an output shaft I; 19. a socket joint part; 20. a third clamping plane; 21. a threaded hole II; 22. an output shaft II; 23. a sleeve; 24. a middle through hole; 25. a locking member; 26. an end cap; 27. a first ventilation hole; 28. a ventilation gap; 29. a vent II; 30. a fixed shaft; 31. a drive bevel gear; 32. a bearing IV; 33. an inner stator; 34. a first bearing groove; 35. a first bearing; 36. a connecting shaft; 37. a first communicating hole; 38. a receiving chamber; 39. a connection hole; 40. a housing; 41. a connecting seat; 42. a fixing seat; 43. a second rear clamping plate; 44. a second paddle body; 45. a front clamping plate II; 46. a center hole III; 47. bearing grooves IV; 48. a clamping spring IV; 49. a fifth bearing; 50. a step III; 51. a rotation axis of the outer rotor; 52. a plug-in part; 53. a return spring; 54. a first paddle body; 55. a first rear clamping plate; 56. a sleeve portion; 57. a sliding part; 58. positioning holes; 59. positioning columns; 60. a chute; 61. a bearing groove II; 62. a second communicating hole; 63. a second bearing; 64. a second clamp spring; 65. a first step; 66. a driven bevel gear; 67. a step II; 68. a first axis; 69. a duct; 70. a clamping part; 71. bearing grooves III; 72. a first central hole; 73. a clamp spring III; 74. a third bearing; 75. a first latch; 76. a second latch; 77. a first front clamping plate; 78. a fourth clamping plane; 79. a second clamping plane; 80; a groove; 81. a third connecting bolt; 82. a threaded section; 83. a polish rod section; 84. a first clamping plane; 85. a rod body; 86. a head; 87. an outer rotor; 88. a wire winding groove; 89. a drive bevel gear; 90. a second clamping surface; 91. a first clamping surface; 92. a second central hole; 93. a second bracket; 94. a fourth bracket; 95. a third bracket; 96. a first bracket; 97. a spring pin II; 98. a hollowed hole; 99. a second hinge shaft; 100. a first locking hole; 101. a spring pin I; 102. a first hinge shaft; 103. a second locking hole; 104. a locking hole III; 105. a hinge shaft IV; 106. a locking hole six; 107. spring pin IV; 108. spring pin III; 109. a locking hole V; 110. a third hinge shaft; 111. a locking hole IV; 112. a power supply device; 113. and a fixing hole.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative, exemplary, and should not be construed as limiting the scope of the invention.

It should be noted that: like reference numerals denote like items in the following figures, and thus once an item is defined in one figure, it may not be further defined and explained in the following figures.

The pure electric multi-paddle power glider shown in fig. 1-22 comprises a frame 1, a propulsion device, a power supply device 112, an umbrella body, a protective frame and a suspension arm 10, wherein the propulsion device and the power supply device 112 are both arranged on the frame 1, and the power supply device 112 is electrically connected with the propulsion device for supplying power to the propulsion device.

As shown in fig. 2, the two suspension arms 10 are provided, one ends of the two suspension arms 10 are fixed on the left and right sides of the frame 1 through a first connecting bolt, the suspension arms 10 extend to the front side of the frame 1, and the umbrella body is connected to the suspension arms 10 on the two sides through umbrella ropes. The umbrella body and the umbrella rope are not represented in the figures.

The power supply device 112 may be a lithium battery pack fixed to the frame 1.

The propulsion device comprises a drive motor 13 fixed on the frame 1 and a propeller 7 connected to an output shaft of the drive motor 13, the propeller 7 being located at the rear side of the frame 1.

When the power glider is started, the propeller 7 is positioned at the rear side of the frame 1 to rotate so as to provide thrust for the frame 1, the umbrella body provides ascending lifting force, and a user sits at the front side of the frame 1 to control the power glider.

As shown in fig. 1 and 2, the driving motor 13 and the power supply device 112 are both disposed at the rear side of the frame 1, and the power supply device 112 is located at a position of the frame 1 near the bottom, the driving motor 13 is located above the power supply device 112, an operator sits at the front side of the frame 1, the power supply device 112 and the driving motor 13 are disposed at the rear side of the frame 1, and during the flying process, the weight of the operator located at the front side can be balanced by the power supply device 112 and the driving motor 13 at the rear side, so that the weight of the front side and the rear side of the power glider is more balanced.

The bottom of the rear side of the frame 1 is fixed with a mounting frame 4 extending backward, and the power supply device 112 is mounted above the mounting frame 4.

As shown in fig. 3, a mounting frame is fixed in the middle of the upper half of the frame 1, a space for accommodating the driving motor 13 is provided in the mounting frame, the driving motor 13 is fixedly connected to the mounting frame by bolts, and an output shaft of the driving motor 13 extends out of the mounting frame to the rear side and is connected with the propeller 7 positioned at the outer side of the mounting frame.

The installation frame is cylindrical frame structure, the center of frame 1 upper half is equipped with the round hole, the installation frame includes main framework 11 and is located the fixed plate 12 of main framework 11 front side, main framework 11 front side has the opening that supplies driving motor 13 to put into, fixed plate 12 fixes the front side closing cap opening at main framework 11, the size and the round hole looks adaptation of main framework 11, the size of fixed plate 12 are greater than the round hole size, the installation frame passes in the round hole backward and fixes fixed plate 12 on the front side surface of frame 1 through the bolt.

The mounting frame is of a hollowed-out frame body structure, so that heat dissipation of the driving motor 13 is facilitated.

As shown in fig. 13, the driving motor 13 is an external rotor motor, the driving motor 13 includes an external rotor 87 and an internal stator 33, the external rotor 87 is mounted on the internal stator 33, the external rotor 87 is positioned outside the internal stator 33, and the external rotor 87 can rotate relative to the internal stator 33 to output rotation power when the driving motor 13 is started.

The structure of the outer rotor 87 and the inner stator 33 for converting electric energy into rotational kinetic energy is the same as that of the existing outer rotor motor, a plurality of winding grooves 88 penetrating through the front side and the rear side of the inner stator 33 are formed in the inner stator 33, the plurality of winding grooves 88 are annularly arrayed on the inner stator 33 by taking the axis of the inner stator 33 as the center, and the winding grooves 88 are used for winding stator coils.

As shown in fig. 7, the outer rotor 87 includes a casing 40 covering the outer side of the inner stator 33 and an end cap 26 connected to one end of the casing 40, the end cap 26 is fixed to the casing 40, the end cap 26 is rotatably installed at the front end of the inner stator 33, a fixing base 42 is fixed to the rear end of the inner stator 33 away from the end cap 26, and the driving motor 13 is fixedly connected to the installation frame through the fixing base 42 located at the rear side.

Preferably, a bearing 35 for reducing friction during rotation is provided between the end cap 26 and the inner stator 33. Specifically, the inner stator 33 is used for connecting one end of the end cover 26, a concave bearing groove one 34 is formed in the end cover 26, a bearing one 35 is installed in the bearing groove one 34, the inner side face of the outer ring of the bearing one 35 is abutted to the inner bottom of the bearing groove one 34, a connecting shaft 36 is fixed on the inner side wall of the end cover 26, the connecting shaft 36 is inserted into the center of the bearing one 35 to be connected with the inner ring of the bearing one 35, and the inner side wall of the end cover 26 is abutted to the outer side face of the inner ring of the bearing one 35.

The axis of the connecting shaft 36 coincides with the axis of rotation 51 of the outer rotor.

The outer rotor 87 is provided with an output shaft 18 for outputting rotational power, and when the outer rotor 87 rotates, the outer rotor 87 drives the output shaft 18 to rotate. The first output shaft 18 is disposed on the rotation axis 51 of the outer rotor, that is, the axis of the first output shaft 18 coincides with the rotation axis 51 of the outer rotor.

As shown in fig. 8, 9 and 14, a reversing mechanism is disposed inside the inner stator 33, an output end of the reversing mechanism is connected with the output shaft two 22, an input end of the reversing mechanism is connected with the output shaft one 18, the reversing mechanism receives the power output by the output shaft one 18 and transmits the power to the output shaft two 22, so that the output shaft two 22 outputs the rotating power in the opposite direction to the output shaft one 18, for example, when the output shaft one 18 outputs the forward rotating power, the output shaft two 22 outputs the rotating power in the same direction, and the output shaft one 18 outputs the power and drives the output shaft two 22 to output the rotating power in the other direction, so that the driving motor 13 has the output shafts in two rotating directions, and the multi-directional power output is realized.

The output end of the first output shaft 18 and the output end of the second output shaft 22 are arranged on the same side of the driving motor 13, the output end of the first output shaft 18 and the output end of the second output shaft 22 are exposed from the rear side of the driving motor 13 and used for outputting rotary power, the first output shaft 18 axially penetrates through the center of the second output shaft 22, a first center hole 72 used for the first output shaft 18 to penetrate through is formed in the center of the second output shaft 22 axially, the first output shaft 18 and the second output shaft 22 can rotate relatively, and the axial leads of the first output shaft 18 and the second output shaft 22 coincide.

The inner stator 33 is hollow and has a receiving cavity 38, the reversing mechanism is disposed in the receiving cavity 38, the first output shaft 18 is disposed on the rotating shaft 51 of the outer rotor, the first output shaft 18 penetrates through the center of the inner stator 33, and the first output shaft 18 penetrates through the receiving cavity 38 inside the inner stator 33 and is connected with the input end of the reversing mechanism.

The inner groove bottom of the first bearing groove 34 is provided with a first communication hole 37 which is communicated with the first bearing groove 34 and the accommodating cavity 38, and the first output shaft 18 extends into the accommodating cavity 38 from the first communication hole 37 to be connected with the reversing mechanism.

The reversing mechanism is a gear set for reversing the drive, in which case the inner stator 33 acts both as a stator and as a gearbox. The gear box can also be provided separately on the outside of the gear set, with the integral gear reversing structure being mounted together in the receiving chamber 38.

As shown in fig. 14, specifically, the gear set includes a drive bevel gear 89, a driven bevel gear 66 and a drive bevel gear 31, where the drive bevel gear 89 and the driven bevel gear 66 are disposed opposite to each other, and the axis of the drive bevel gear 89 coincides with the axis of the driven bevel gear 66, the drive bevel gear 89 is connected to the first output shaft 18 and is driven to coaxially rotate by the first output shaft 18, the driven bevel gear 66 is rotatably connected to the inner stator 33, the drive bevel gear 31 is mounted on the inner wall of the accommodating cavity 38, and the drive bevel gear 31 can rotate relative to the accommodating cavity 38, the drive bevel gear 31 is disposed between the drive bevel gear 89 and the driven bevel gear 66, and two sides of the drive bevel gear 31 are engaged with the drive bevel gear 89 and the driven bevel gear 66 respectively for driving, when the first output shaft 18 rotates, the drive bevel gear 89 drives the drive bevel gear 31 to rotate, the second output shaft 22 is connected to the driven bevel gear 66, and the second output shaft 22 is driven to rotate by the second output shaft 22 in opposite direction to the first output shaft 18.

Preferably, two drive bevel gears 31 are provided, the two drive bevel gears 31 are disposed opposite to each other, the axes of the two drive bevel gears 31 are coincident, two sides of the two drive bevel gears 31 are respectively meshed with the drive bevel gear 89 and the driven bevel gear 66, the two drive bevel gears 31 are provided for more stable transmission, in addition, the axes of the drive bevel gears 31 are perpendicular to the axes of the drive bevel gears 89, and the drive bevel gears 31 are vertically and directionally transmitted to the drive bevel gears 89 and the driven bevel gears 66 on two sides.

As shown in fig. 7, specifically, fixed shafts 30 are fixed on inner walls of two sides of the accommodating cavity 38, two transmission bevel gears 31 are coaxially connected to the two fixed shafts 30 respectively, and can rotate around the axis of the fixed shafts 30, and four bearings 32 are arranged between the transmission bevel gears 31 and the fixed shafts 30 for reducing friction when the transmission bevel gears 31 rotate relative to the fixed shafts 30. The inner wall of the accommodating cavity 38 is provided with a connecting hole 39 for connecting the fixed shaft 30, the fixed shaft 30 can be tightly inserted into the connecting hole 39 on the inner wall of the accommodating cavity 38, and the fixed shaft 30 can be also connected with the connecting hole 39 on the accommodating cavity 38 in a threaded manner.

In order to facilitate the processing of the connecting hole 39, one end of the connecting hole 39 communicates with the outer side wall of the inner stator 33, i.e. the connecting hole 39 is a hole that is opened from the outer wall of the inner stator 33 into the accommodating cavity 38.

One end of the output shaft one 18 is fixed to the end cap 26 of the outer rotor 87 located at the front side of the inner stator 33 and extends rearward along the rotation axis 51 of the outer rotor, penetrates the inner stator 33 and protrudes from the rear side of the inner stator 33 for outputting power, so that the output shaft one 18 passes through the receiving chamber 38, at this time, the output shaft one 18 passes through the center of the drive bevel gear 89, and the output shaft one 18 is fixed to the drive bevel gear 89.

As shown in fig. 15, preferably, the drive bevel gear 89 is provided with a second central hole 92 through which the first output shaft 18 passes, at least one first clamping surface 91 is provided on the inner wall of the second central hole 92, a second clamping surface 90 matched with the first clamping surface 91 is provided on the outer peripheral wall of the first output shaft 18, when the drive bevel gear 89 is sleeved on the first output shaft 18, the first clamping surface 91 and the second clamping surface 90 are clamped with the surfaces, the relative rotation of the first output shaft 18 and the drive bevel gear 89 is limited, the second central hole 92 is an inner hexagonal hole, the portion of the first output shaft 18 for sleeving the drive bevel gear 89 is hexagonal and matched with the shape of the inner hexagonal hole, the first clamping spring is clamped on the first output shaft 18, the first clamping spring is abutted against the rear side of the drive bevel gear 89, and the front side of the drive bevel gear 89 is abutted against the connecting shaft 36 or a step arranged on the first output shaft 18, so as to limit the axial movement of the drive bevel gear 89, thereby realizing the fixation of the drive bevel gear 89 on the first output shaft 18.

As shown in fig. 8, the first output shaft 18 passes through the centers of the driven bevel gear 66 and the second output shaft 22 at the same time, the second output shaft 22 is coaxially disposed on the driven bevel gear 66, the first central hole 72 in the center of the second output shaft 22 extends through the driven bevel gear 66, the first output shaft 18 passes through the first central hole 72, the driven bevel gear 66 and the second output shaft 22 can rotate relative to the first output shaft 18, the second output shaft 22 also protrudes from the rear side of the inner stator 33 for outputting rotational power, so that the output end of the first output shaft 18 for outputting power and the output end of the second output shaft 22 for outputting power are disposed on the same side of the driving motor 13, the first output shaft 18 and the second output shaft 22 form a structure of an inner shaft and an outer shaft, and the first output shaft 18 and the second output shaft 22 are on the same axis.

In addition, the rear end of the inner stator 33 far away from the end cover 26 is provided with a concave second bearing groove 61, a second communication hole 62 is formed in the inner bottom of the second bearing groove 61 and is communicated with the accommodating cavity 38, a second bearing 63 is installed in the second bearing groove 61, most preferably, the second bearing 63 is provided with two clamping springs, the inner wall of the second bearing groove 61 is clamped with a second clamping spring 64, the second clamping spring 64 abuts against the outer ring of the second bearing 63 positioned on the outer side, the two second bearings 63 are limited in the second bearing groove 61, and the axial movement of the second bearing 63 is limited.

The second output shaft 22 is positioned at the front side of the second bearing 63, the second output shaft 22 passes through the center of the second bearing 63 backwards and is connected with the inner ring of the second bearing 63, a first step 65 is formed between the second output shaft 22 and the driven bevel gear 66, the first step 65 is propped against the side wall of the inner ring of the second bearing 63 positioned at the inner side to limit, the first output shaft 18 is provided with a second step 67 positioned at the front side of the driven bevel gear 66, the second step 67 is attached to the front side of the driven bevel gear 66, and the driven bevel gear 66 and the second output shaft 22 are limited to axially move.

As shown in fig. 9, a third bearing 74 is disposed between the first output shaft 18 and the second output shaft 22, specifically, a third bearing groove 71 is formed at the rear end of the second output shaft 22, the third bearing groove 71 is in butt joint communication with the first central hole 72, the third bearing 74 is installed in the third bearing groove 71, a third clamp spring 73 located at the rear side of the third bearing 74 is clamped on the first output shaft 18, and the third clamp spring 73 limits the third bearing 74 to axially move.

The first bearing slot 34 and the second bearing slot 61 form a hollow cavity structure with two ends penetrating through the inner stator 33, and the gear set can be inserted into the accommodating cavity 38 from the first bearing slot 34 or the second bearing slot 61.

As shown in fig. 8 and 9, the first output shaft 18 and the second output shaft 22 are both connected with the propellers 7, and when the driving motor 13 is started, the first output shaft 18 and the second output shaft 22 respectively drive the propellers 7 to rotate, so that the rotation directions of the propellers 7 are opposite.

The yaw torque of the electric glider can be offset when the two propellers 7 with opposite rotation directions rotate, so that the flying stability of the electric glider is ensured, and the electric glider is controlled by a user.

The first propeller 15 connected to the first output shaft 18 is located on the rear side of the second propeller 14 connected to the second output shaft 22.

Screw two 14 include preceding grip block two 45, oar body two 44 and back grip block two 43, preceding grip block two 45 and back grip block two 43 set up respectively in the front and back both sides of oar body two 44, be equipped with a plurality of bolt holes one on the back grip block two 43, be equipped with the bolt hole two of corresponding bolt hole one on the oar body two 44, be equipped with the screw hole one of corresponding bolt hole one on the preceding grip block two 45, connecting bolt two pass bolt hole one in proper order, bolt hole two and screw hole one threaded connection, make back grip block two 43, oar body two 44 and preceding grip block two 45 connect as a whole.

The second propeller 14 is provided with a third central hole 46 along the axial direction, the second propeller 14 is sleeved on the outer side of the first output shaft 18 through the third central hole 46, and a fifth bearing 49 is arranged between the second propeller 14 and the first output shaft 18 and used for supporting between the second propeller 14 and the first output shaft 18.

As shown in fig. 7, specifically, a bearing groove four 47 is formed on one side of the front clamping plate two 45 facing the propeller body two 44, a bearing five 49 is installed in the bearing groove four 47, a clamp spring four 48 is clamped on the inner wall of the bearing groove four 47, the clamp spring four 48 limits the bearing five 49 in the bearing groove four 47 and limits the axial movement of the bearing five 49, the output shaft one 18 passes through the center of the bearing five 49 and is connected with the inner ring of the bearing five 49, the output shaft one 18 is provided with a step three 50 positioned on the front side of the bearing five 49, the step three 50 is abutted against the inner ring of the bearing five 49, the output shaft one 18 is sleeved with a sleeve 23, the sleeve 23 is positioned on the rear side of the propeller two 14, one end of the sleeve 23 is inserted into a center hole three 46 of the propeller two 14 and abuts against the inner ring of the bearing five 49, and the sleeve 23 is matched with the step three 50 to limit the axial movement of the bearing five 49 relative to the output shaft one 18, so that the propeller two 14 is limited to move axially on the output shaft one 18 relative to the output shaft one 18.

The sleeve 23 is inserted into the center hole III 46 and the sleeve 23 is not in contact with the second propeller 14, preventing the sleeve 23 from contacting the second propeller 14 to prevent the second propeller 14 from rotating.

As shown in fig. 10, the front end surface of the front clamping plate two 45 is fixed with a connecting seat 41, the bearing groove four 47 is disposed in the connecting seat 41, the front end of the connecting seat 41 is provided with a plurality of first latches 75, the output end of the output shaft two 22 extending out of the rear end of the driving motor 13 is provided with second latches 76 engaged with the first latches 75, and the plurality of first latches 75 are engaged with the plurality of second latches 76 in a staggered manner, so that the output shaft two 22 can drive the screw propeller two 14 to rotate.

In addition, as shown in fig. 6, a fastening bolt 17 for connection is provided between the first propeller 15 and the first output shaft 18, the fastening bolt 17 and the first output shaft 18 are respectively located at the front side and the rear side of the first propeller 15, a middle through hole 24 is provided at the center of the first propeller 15, the middle through hole 24 penetrates through the front side and the rear side of the first propeller 15, the fastening bolt 17 is located at the rear side of the first propeller 15, the first output shaft 18 is located at the front side of the first propeller 15, and the fastening bolt 17 is inserted into the middle through hole 24 in a forward rotatable manner to be in threaded connection with the first output shaft 18 at the other side, so that the first propeller 15 is mounted on the first output shaft 18. The fastening bolt 17 can rotate relative to the first propeller 15 when inserted into the intermediate through hole 24.

At this time, a limiting component is disposed between the first propeller 15 and the first output shaft 18, and the first propeller 15 is limited by the limiting component and the first output shaft 18 to rotate relatively.

There are various types of limit components for limiting relative rotation, such as:

one scheme, the tip that output shaft one 18 is used for installing screw one 15 is fixed with the mount pad, and spacing subassembly is including establishing the spacing post on the mount pad and establish the spacing hole that corresponds with spacing post on screw one 15, and when the front side of screw one 15 was pushed up on the mount pad, the relative rotation of output shaft one 18 and screw one 15 is restricted to spacing post insertion spacing hole.

Alternatively, the limiting assembly includes a spline provided on the end of the output shaft 18 for mounting the first propeller 15, and a spline groove provided on the front side of the first propeller 15, the spline being engaged with the spline groove to limit relative rotation of the first propeller 15 and the output shaft 18.

As shown in fig. 6 and 11, for example, in this patent, a socket portion 19 is disposed at one end of the output shaft first 18 for connecting the first propeller 15, the socket portion 19 is exposed from the sleeve 23, the first propeller 15 is sleeved outside the socket portion 19 through a middle through hole 24, the front side of the first propeller 15 abuts against the sleeve 23, a threaded hole second 21 is disposed on the rear end face of the socket portion 19, a fastening bolt 17 is inserted into the middle through hole 24 and is in threaded connection with the threaded hole second 21 on the end face of the socket portion 19, the first propeller 15 is mounted on the first output shaft 18, the limiting assembly includes at least one third clamping plane 20 disposed on the outer wall of the socket portion 19, and a fourth clamping plane 78 disposed on the inner wall of the middle through hole 24 and corresponding to the third clamping plane 20, the third clamping plane 20 and the fourth clamping plane 78 face are in abutting and clamping with each other to limit the relative rotation of the first propeller 15 and the first output shaft 18 when the first propeller 15 is sleeved on the socket portion 19 and the output shaft first 18. Preferably, six third clamping planes 20 are arranged on the circumferential outer wall of the sleeving part 19 in a ring-shaped array with the axial lead of the first output shaft 18 as a center, and six fourth clamping planes 78 matched with the sleeving part 19 are arranged on a section of inner wall of the middle through hole 24 positioned at the forefront side.

The limiting assembly is not limited to the above structures, and conventional limiting assemblies capable of separating the first screw 15 from the first output shaft 18 after the fastening bolts 17 are removed are suitable for this patent.

The first screw 15 is provided with a locking piece 25, the locking piece 25 can move in the direction of a first axis 68 relative to the first screw 15 so as to switch between a locking position and an unlocking position, and when the locking piece 25 moves to the locking position, the locking piece 25 limits the relative rotation of the fastening bolt 17 and the first screw 15; when the locking member 25 is moved to the unlocking position, the relative rotation between the tightening bolt 17 and the propeller one 15 is resumed.

The locking structure of the locking member 25 is various, but not limited to the several locking members 25, for example:

in one embodiment, the locking member 25 includes a locking pin and a spring, the locking pin is disposed in the first propeller 15 and can move along a radial direction of the first propeller 15, the fastening bolt 17 is provided with an insertion hole matched with the locking pin, the spring pushes the locking pin to move to a locking position along a radial direction toward a center, the locking pin is inserted into the insertion hole on the fastening bolt 17 to limit relative rotation between the fastening bolt 17 and the first propeller 15, when the locking pin moves to an unlocking position outwards due to an external force, the locking pin is separated from the insertion hole, at this time, the fastening bolt 17 and the first propeller 15 resume relative rotation again, and the direction of the first axis 68 is the radial direction of the first propeller 15.

Alternatively, the locking member 25 includes a spring and a U-shaped member disposed on the first propeller 15, the fastening bolt 17 is provided with two symmetrically disposed clamping surfaces that are matched with the U-shaped member, the direction of the first axis 68 is radial to the first propeller 15, when the spring drives the U-shaped member to move radially inward to the locking position, the U-shaped member is clamped on the outer side of the fastening bolt 17, two symmetrical clamping surfaces on two sides of the U-shaped member and the fastening bolt 17 are clamped to limit the relative rotation of the fastening bolt 17 and the first propeller 15, and when the U-shaped member moves outwards to the unlocking position under an external force, the U-shaped member is separated from the fastening bolt 17, and at this time, the fastening bolt 17 and the first propeller 15 resume the relative rotation.

For example, in the present patent, the locking member 25 is sleeved on the outer side of the fastening bolt 17, and is moved relative to the fastening bolt 17 along the length extending direction of the fastening bolt 17 to switch between the locking position and the unlocking position, and the locking member 25 is provided with a hole 69 through which the fastening bolt 17 passes, so that relative rotation between the locking member 25 and the first propeller 15 is restricted.

Preferably, the locking member 25 is disposed in the intermediate through hole 24. Preferably, the direction of the first axis 68 is parallel to or coincident with the direction of the axis of the fastening bolt 17, and the direction of the axis of the fastening bolt 17 is parallel to or coincident with the direction of the axis of the output shaft 18, and most preferably, the direction of the first axis 68, the direction of the axis of the fastening bolt 17, and the direction of the axis of the output shaft 18 are all coincident.

As shown in fig. 8, 9 and 11, the inner wall of the middle through hole 24 is provided with a chute 60, the locking member 25 is provided with a sliding portion 57 corresponding to the chute 60, the sliding portion 57 is provided in the chute 60 and is movable along the chute 60 in the direction of the first axis 68, and the sliding portion 57 is slidably connected with the chute 60 to restrict the relative rotation of the locking member 25 and the propeller 15. Preferably, three sliding grooves 60 are annularly arranged on the inner wall of the middle through hole 24, three sliding parts 57 corresponding to the three sliding grooves 60 are convexly arranged on the outer side wall of the locking piece 25, the shape of the sliding parts 57 is matched with that of the sliding grooves 60, and when the three sliding parts 57 are respectively connected in the three corresponding sliding grooves 60 in a sliding mode, the locking piece 25 is limited to move on the first axis 68 and cannot rotate relative to the first screw 15.

As shown in fig. 11, specifically, the first propeller 15 includes a first front clamping plate 77, a first propeller body 54 and a first rear clamping plate 55, the first front clamping plate 77 and the first rear clamping plate 55 are clamped on the front side and the rear side of the first propeller body 54, a plurality of annular array of bolt holes three are formed in the first rear clamping plate 55, bolt holes four corresponding to the bolt holes three are formed in the first propeller body 54, threaded holes three corresponding to the bolt holes three are formed in the first front clamping plate 77, the bolt holes four are in butt joint with the threaded holes three holes, connecting bolts three 81 penetrate through the bolt holes three and the bolt holes four to be in threaded connection with the threaded holes three, the first front clamping plate 77, the first propeller body 54 and the first rear clamping plate 55 are fixedly connected into a whole, through holes located in the center are formed in the first front clamping plate 77, the first propeller body 54 and the first rear clamping plate 55, and the through holes are in butt joint to form the middle through holes 24. The fourth clamping plane 78 is disposed on the inner wall of the through hole of the first front clamping plate 77.

Three grooves 80 are formed on the side of the rear clamping plate one 55 facing the first paddle body 54, when the rear clamping plate one 55 is clamped on the rear side of the first paddle body 54, the grooves 80 and the first paddle body 54 enclose to form the sliding groove 60, and the maximum movement range of the sliding part 57 in the direction of the first axis 68 is limited by the bottom of the grooves 80 and the rear side surface of the first paddle body 54, that is, the maximum movement range of the locking member 25 in the direction of the first axis 68 is limited.

The fastening bolt 17 comprises a rod body 85 and a head 86 connected to one end of the rod body 85, and at least one section of the rod body 85 is provided with external threads for being in threaded connection with the threaded hole II 21 on the sleeving part 19. Preferably, the rod 85 includes a threaded section 82 distal from the head 86 and a polish rod section 83 located between the threaded section 82 and the head 86.

The rod body 85 of the fastening bolt 17 is connected to the output shaft one 18 through the hole 69 of the locking member 25.

As shown in fig. 12, the rod body 85 is provided with a clamping part 70, when the locking member 25 moves to the locking position, the clamping part 70 enters the hole 69, the clamping part 70 is clamped with the locking member 25 to limit the relative rotation of the fastening bolt 17 and the first propeller 15, when the locking member 25 moves to the unlocking position, the clamping part 70 is separated from the hole 69 of the locking member 25, and a gap for the relative rotation of the fastening bolt 17 and the locking member 25 is formed between the hole 69 and the rod body 85 of the fastening bolt 17.

As shown in fig. 11 and 12, specifically, the clamping portion 70 is disposed between the polish rod section 83 and the head 86, the clamping portion 70 is at least one first clamping plane 84 disposed on an outer wall of the rod body 85, a second clamping plane 79 corresponding to the first clamping plane 84 is disposed on an inner wall of the duct 69, and the clamping portion 70 enters the duct 69 when the locking member 25 moves to the locking position, so that the first clamping plane 84 and the second clamping plane 79 are in surface-to-surface joint to limit relative rotation between the fastening bolt 17 and the first propeller 15. Preferably, six first clamping planes 84 which are annularly arrayed with the axis of the fastening bolt 17 as the center are arranged on the outer wall of the rod body 85, six second clamping planes 79 which correspond to the six first clamping planes 84 are arranged on the inner wall of the pore canal 69, when the locking piece 25 moves backwards to the locking position, the clamping part 70 enters into the pore canal 69, so that the first clamping planes 84 and the second clamping planes 79 are in surface-to-surface joint to limit the relative rotation of the fastening bolt 17 and the first screw 15, when the locking piece 25 moves forwards, the pore canal 69 is separated from the clamping part 70 and moves onto the polish rod section 83, a gap for the relative rotation of the fastening bolt 17 and the locking piece 25 is arranged between the pore canal 69 and the polish rod section 83, and the size of the rod body 85 where the clamping part 70 is located is larger than the size of the polish rod section 83.

The screw one 15 is installed on the output shaft through the middle through hole 24 of the screw one 15 and is connected with the output shaft through the fastening bolt 17, when the screw one 15 is used, the locking piece 25 moves to the locking position, at the moment, the screw one 15 and the output shaft one 18 are limited by the relative rotation of the limiting component, the relative rotation of the fastening bolt 17 and the screw one 15 is limited by the locking piece 25, the screw two 14 cannot form autorotation through the mutual cooperation between the output shaft one 18 and the screw one 15 and the fastening bolt 17, so that the problem of loosening and disengaging after the fastening bolt 17 autorotates is solved, the structure is more stable, when the screw one is required to be disassembled, the locking piece 25 is moved to the unlocking position, at the moment, the fastening bolt 17 and the screw one 15 can relatively rotate, the fastening bolt 17 for connection can be outwards screwed out, the screw one 15 can be disassembled, after the screw one 15 is disassembled from the output shaft one 18, the sleeve 23 can be removed from the output shaft one 18, at the moment, the screw two 14 can not be reversely slid along the output shaft one 18, and the screw 7 can be quickly disassembled and conveniently.

In addition, the head 86 of the fastening bolt 17 has a size larger than the opening size of the hole 69, and the intermediate through hole 24 is provided therein with a return spring 53 for driving the locking member 25 to the locking position toward the head 86 side of the fastening bolt 17, and at this time, the return spring 53 presses the locking member 25 against the head 86 of the fastening bolt 17, and a space 16 is provided between the head 86 of the fastening bolt 17 and the inner wall of the intermediate through hole 24, and the space 16 is used for inserting a tool for removing the fastening bolt 17, which may be a socket wrench.

The head 86 and the sleeve 23 of the fastening bolt 17 are limited on the front and rear sides of the first propeller 15, so that the first propeller 15 is mounted on the end of the first output shaft 18.

When the socket spanner is put on the head 86 of the fastening bolt 17, the tool is inserted into the space 16 and pushes the lock member 25 to move forward to the unlock position against the elastic force of the return spring 53. The unlocking can be completed when the tool sleeve is unlocked by one key, the operation is more convenient and quick, and the quick tripping is realized. The fastening bolt 17 is a hexagon bolt.

As shown in fig. 8, the front side of the locking member 25 is provided with a sleeve portion 56 extending out, the first front clamping plate 77 is provided with a plug portion 52 to be inserted into the through hole of the first paddle body 54, the return spring 53 is sleeved outside the fastening bolt 17, one end of the return spring 53 is propped against the plug portion 52, and the other end of the return spring 53 is sleeved outside the sleeve portion 56 and propped against the front side of the locking member 25, so that the return spring 53 is prevented from interfering with the fastening bolt 17 when the fastening bolt 17 passes through.

As shown in fig. 8 and 9, the outer end surface of the first rear clamping plate 55 is provided with positioning holes 58 corresponding to the grooves 80, the positioning holes 58 are located at the bottoms of the grooves 80, the sliding portion 57 is provided with positioning posts 59 corresponding to the positioning holes 58, and when the locking member 25 moves to the locking position, the positioning posts 59 are inserted into the corresponding positioning holes 58, so that the rotation of the fastening bolt 17 can be more stably restricted when the locking member 25 is in the locking position.

In addition, the length of the socket 19 is greater than the maximum movement range of the locking member 25 in the direction of the first axis 68, so that the first propeller 15 is prevented from moving to one side relative to the first output shaft 18 and separating from the socket 19, and the first propeller 15 and the first output shaft 18 are rotated.

The use principle is as follows: during installation, the first screw 15 is sleeved on the sleeved part 19 through the middle through hole 24, the first front clamping plate 77 is propped against the sleeve 23, at the moment, the third clamping plane 20 is clamped with the fourth clamping plane 78 in a surface-to-surface joint mode, relative rotation of the first screw 15 and the first output shaft 18 is limited, the rod body 85 of the fastening bolt 17 is inserted into the middle through hole 24 and is in threaded connection with the end face of the sleeved part 19, the fastening bolt 17 is rotated relative to the first screw 15 through the sleeve spanner on the head 86 of the fastening bolt 17, the fastening bolt 17 is screwed, after the sleeve spanner is removed, the reset spring 53 pushes the locking piece 25 to move backwards to a locking position, the locking piece 25 is pressed on the head 86 of the fastening bolt 17, at the moment, the clamping part 70 of the rod body 85 of the fastening bolt 17 enters into the hole 69, the first clamping plane 84 is clamped with the second clamping plane 79 in a surface-to-surface joint mode, the fastening bolt 17 is limited to rotate relative to the first screw 15, the first screw 15 is completely installed, at the first screw 15 is limited to rotate through the locking piece 25, and the first screw 15 can rotate through the locking piece 25, and the first output shaft 18 can drive the first screw 15 to rotate.

When the sleeve spanner needs to be disassembled, the sleeve spanner is sleeved on the head 86 of the fastening bolt 17, the sleeve spanner is inserted into the space 16 between the head 86 and the middle through hole 24, the locking piece 25 is pushed forward to the unlocking position, the pore canal 69 of the locking piece 25 is separated from the clamping connection with the clamping connection part 70, the fastening bolt 17 can rotate relative to the first screw 15, the sleeve spanner is rotated to unscrew the fastening bolt 17, and the first screw 15 sleeved on the sleeving part 19 can be removed, so that the sleeve spanner is quickly disassembled.

The rotation speed of the output shaft two 22 can be controlled by setting the teeth number of the drive bevel gear 89, the drive bevel gear 31 and the driven bevel gear 66, and thus the rotation speeds of the first propeller 15 and the second propeller 14 are controlled, preferably, the rotation speed of the first output shaft 18 is equal to the rotation speed of the second output shaft 22, at this time, the rotation speed of the first propeller 15 is equal to the rotation speed of the second propeller 14, and the yaw torques of the two propellers 1:1 can cancel each other.

In addition, as shown in fig. 7, a ventilation gap 28 is provided between the outer rotor 87 and the inner stator 33, the end cover 26 and the fixing seat 42 are capped at two ends of the ventilation gap 28, a plurality of first ventilation holes 27 are provided on the end cover 26, a plurality of second ventilation holes 29 are provided on the fixing seat 42, the first ventilation holes 27 and the second ventilation holes 29 are respectively communicated with two ends of the ventilation gap 28 to form a heat dissipation air path, and when the propeller 7 rotates, the front and rear of the driving motor 13 have air pressure difference, so that external air flows along the heat dissipation air path to dissipate heat of the driving motor 13 and the gear set.

As shown in fig. 1 and 2, the protective frame is used for preventing the parachute rope of the glider from contacting with the propeller 7, and the protective frame comprises a plurality of protective brackets 5 arranged on the outer edge of the frame 1, wherein the protective brackets 5 are arranged around the propeller 7, preferably, the protective brackets 5 are six, three protective brackets 5 are respectively arranged on the left side and the right side of the frame 1, and the three protective brackets 5 on the left side and the right side of the frame 1 are symmetrically arranged one by one.

Protective ropes 2 are arranged between the protective brackets 5 in a penetrating way to form a protective net cover 9.

As shown in fig. 7 and 8, the protective bracket 5 includes a first bracket 96 and a second bracket 93, one end of the first bracket 96 is hinged to the frame 1, and one end of the second bracket 93 is hinged to the other end of the first bracket 96, so that the first bracket 96 and the second bracket 93 can be turned backward around respective hinge points toward the frame 1 to a state in which the protective bracket 5 is fully unfolded, or the protective bracket 5 can be folded toward the front center of the frame 1 for accommodating a human body. The front center refers to the center line of symmetry of the front side of the frame 1.

When the first bracket 96 and the second bracket 93 are turned backward to the state that the protective bracket 5 is fully unfolded, the protective bracket 5 is unfolded and shielded on the outer side of the propeller 7 for protection, the protective net cover 9 covers the outer side of the propeller 7 for protecting the parachute line of the electric glider from touching the propeller 7 in the unfolded state, and at the moment, a first locking component is arranged between the first bracket 96 and the frame 1 for locking the relative rotation of the first bracket 96 and the frame 1, a second locking component is arranged between the second bracket 93 and the first bracket 96 for locking the relative rotation of the first bracket 96 and the second bracket 93, and the first locking component and the second locking component enable the protective bracket 5 to be kept in the fully unfolded state more stably, so that the rotation of the first bracket 96 and the second bracket 93 is prevented from affecting normal use.

Preferably, a first hinge shaft 102 is arranged between the first bracket 96 and the frame 1, a second hinge shaft 99 is arranged between the second bracket 93 and the connected first bracket 96, the axis of the first hinge shaft 102 is arranged along the tangential direction of the outer edge of the frame 1, and the axis of the first hinge shaft 102 arranged at the two ends of the first bracket 96 is parallel to the axis of the second hinge shaft 99.

Specifically, the first locking assembly includes a first locking hole 100 provided in the first bracket 96 and eccentric to the first hinge shaft 102, and a first spring pin 101 provided in the frame 1, and when the first bracket 96 and the second bracket 93 are turned backward of the frame 1 to a state where the protective bracket 5 is fully unfolded, the first locking hole 100 is rotated to a position opposite to the first spring pin 101, and the first spring pin 101 is inserted into the first locking hole 100 to restrict the relative rotation of the first bracket 96 and the frame 1. The first spring pin 101 can be separated from the first locking hole 100 by external force and can be elastically and automatically reset.

The second locking assembly includes a second locking hole 103 provided on the second bracket 93 and eccentric to the second hinge shaft 99, and a second spring pin 97 provided on the first bracket 96, and when the first bracket 96 and the second bracket 93 are turned backward toward the frame 1 to a state where the protective bracket 5 is fully unfolded, the second locking hole 103 is rotated to a position opposite to the second spring pin 97, and the second spring pin 97 is inserted into the second locking hole 103 to restrict the relative rotation of the second bracket 93 and the first bracket 96. The second spring pin 97 can be separated from the second locking hole 103 by external force and can be elastically and automatically reset.

When this electric glider needs to be stored or transported, pull out spring pin two 97 and spring pin one 101 for can rotate relatively between first support 96 and the frame 1, and between first support 96 and the second support 93, be used for holding human front side center folding with first support 96 and second support 93 to frame 1, in order to realize folding up protective bracket 5, reduce electric glider volume, be convenient for electric glider accomodate and carry the transportation.

As shown in fig. 19 and 21, in addition, a third locking hole 104 eccentric to the second hinge shaft 99 is formed at the end of the second bracket 93 connected to the first bracket 96, and when the first bracket 96 and the second bracket 93 are turned backward to the state that the protective bracket 5 is fully unfolded toward the frame 1, the third locking hole 104 is abutted with the first locking hole 100, and the first spring pin 101 is inserted into the first locking hole 100 and the third locking hole 104 at the same time, so that the stability of the locking structure is better.

When the first bracket 96 and the second bracket 93 are turned backward of the chassis 1 to a state where the protective bracket 5 is fully unfolded, the hinge shaft one 102, the hinge shaft two 99 and the locking hole one 100 are connected to form a triangle.

Preferably, when the protective bracket 5 is in the fully deployed state, the protective screen 9 covers a protective range of 300 ° to 330 ° outside the propeller 7, and most preferably, a range of 315 ° outside the propeller 7 is shielded by the protective screen 9 for protection. The underside of the protective screen 9 has an opening, and the mounting frame 4 extends below the opening.

In addition, the protection support 5 is an arc-shaped plate structure, the plate surface of the protection support 5 is provided with a hollowed-out hole 98, and the width of the second support 93 is gradually reduced from one end connected with the first support 96 to the other end.

And the edges of the two sides of the protective bracket 5 are provided with flanges 6 extending from one end to the other end, so that the protective bracket 5 has better bending resistance.

As shown in fig. 20 and 22, in addition, the left and right sides of the bottom of the frame 1 are provided with bottom brackets 3 below the protective brackets 5, two ends of the protective rope 2 are respectively connected to the bottom brackets 3 on two sides, the rope body of the protective rope 2 sequentially passes through the protective brackets 5 from one side of the frame 1 to the other side, the protective brackets 5 are provided with rope holes 8 through which the protective rope 2 passes, the bottom brackets 3 are hinged on the frame 1, and the bottom brackets 3 can be unfolded to the lower side of the propeller 7 or folded to the front side of the frame 1 when being turned backward to the frame 1.

When the bottom bracket 3 and the protective bracket 5 are simultaneously turned backwards towards the frame 1 to be in an unfolding state, the protective rope 2 is tensioned, so that the protective rope 2 can play a protective role, a third locking component is arranged between the bottom bracket 3 and the frame 1 in the unfolding state and used for locking the relative rotation of the bottom bracket 3 and the frame 1, and the frame body of the bottom bracket 3 is positioned on one side, close to the propeller 7, of the upper adjacent protective bracket 5.

When the bottom bracket 3 and the protective bracket 5 are folded towards the front side of the frame 1 at the same time, the protective rope 2 is changed from a tensioning state to a loosening state in the process, so that the protective rope 2 is not required to be detached when the protective bracket 5 is folded, and the folding and storage are more convenient.

The bottom bracket 3 is provided with a plurality of fixing holes 113 for connecting the ends of the protective ropes 2.

The bottom bracket 3 comprises a third bracket 95 and a fourth bracket 94, one end of the third bracket 95 is hinged with the frame 1, one end of the fourth bracket 94 is hinged with the other end of the third bracket 95, a third hinge shaft 110 is arranged between the third bracket 95 and the frame 1, a fourth hinge shaft 105 is arranged between the fourth bracket 94 and the third bracket 95, the fourth bracket 94 can rotate around the fourth hinge shaft 105 relative to the third bracket 95, the third bracket 95 can rotate around the third hinge shaft 110 relative to the frame 1, and the third bracket 95 and the fourth bracket 94 can turn backwards towards the frame 1 around respective hinge points to a state that the bottom bracket 3 is completely unfolded or fold towards the front side of the frame 1. The axis of the third hinge shaft 110 is arranged along the tangential direction of the outer edge of the frame 1, and the axis of the third hinge shaft 110 is parallel to the axis of the fourth hinge shaft 105.

The third locking assembly comprises a third spring pin 108, a fourth spring pin 107, a fourth locking hole 111, a fifth locking hole 109 and a sixth locking hole 106, the third spring pin 108 and the fourth spring pin 107 are arranged on the frame 1, the fourth locking hole 111 is arranged on the third bracket 95 and is eccentric to the third hinge shaft 110, the fifth locking hole 109 and the sixth locking hole 106 are respectively arranged at two ends of the fourth bracket 94 and are eccentric to the fourth hinge shaft 105, when the third bracket 95 and the fourth bracket 94 are turned backwards towards the frame 1 to the state that the bottom bracket 3 is fully unfolded, the fourth locking hole 111 and the fifth locking hole 109 are in butt joint and are in a position opposite to the third spring pin 108, the third spring pin 108 is simultaneously elastically inserted into the fourth locking hole 111 and the fifth locking hole 109, the sixth locking hole 106 is simultaneously rotated to a position opposite to the fourth spring pin 107, and the fourth spring pin 107 is elastically inserted into the sixth locking hole 106, so that the bottom bracket 3 is kept in the fully unfolded state.

The third spring pin 108 can be separated from the fourth locking hole 111 and the fifth locking hole 109 by external force and can be elastically and automatically reset, the fourth spring pin 107 can be separated from the sixth locking hole 106 by external force and can be elastically and automatically reset, when the bottom bracket 3 needs to be folded towards the front side of the frame 1, the third spring pin 108 is pulled out of the fourth locking hole 111 and the fifth locking hole 109, and meanwhile the fourth spring pin 107 is pulled out of the sixth locking hole 106, so that the third bracket 95 and the frame 1 can rotate relatively, and the fourth bracket 94 and the third bracket 95 can rotate relatively, so that the front side of the frame 1 of the bottom bracket 3 can be folded.

Preferably, when the third bracket 95 and the fourth bracket 94 are turned backward of the chassis 1 to a state in which the bottom bracket 3 is fully unfolded, the locking hole four 111, the hinge shaft three 110, and the hinge shaft four 105 are in a straight line. The third bracket 95 and the fourth bracket 94 are straight bar structures.

Spring pin one 101, spring pin two 97, spring pin three 108 and spring pin four 107 are all existing spring pin structures, such as the index pins of the type MS1171-ST-003, for example, of the nine-day-Xuanle brand.

As shown in fig. 16, when the protective bracket 5 and the bottom bracket 3 are folded toward the front side of the frame 1, the boom 10 can rotate relative to the frame 1 by an adjustment angle for avoiding the protective bracket 5 and the bottom bracket 3, so that the protective bracket 5 is folded toward the front center of the frame 1 for accommodating a human body.

The protective bracket 5 is made of aluminum and has light weight.

The above description of the purely electric multi-paddle power glider provided by the invention applies specific examples to illustrate the principles and embodiments of the invention, the above examples being only used to help understand the invention and core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.

Claims

1. The utility model provides a pure electric drive's multi-oar power glider, including frame, thrust unit and power supply unit are all installed in the frame, and power supply unit is connected with thrust unit electricity and is used for supplying power to thrust unit, and thrust unit is including fixing the driving motor in the frame and connecting the screw on driving motor output shaft, and the screw is located the frame rear side and is used for providing thrust to the frame, is equipped with the protective frame that is used for preventing glider's parachute rope and screw contact in the frame, its characterized in that, driving motor is external rotor motor, and driving motor includes external rotor and internal stator, is provided with the output shaft that is used for outputting rotary power on the external rotor, the inside of internal stator is provided with reversing mechanism, reversing mechanism's output is connected with output shaft two, reversing mechanism's input connection output shaft one, output shaft two output shaft and output shaft two output shaft's the center axially pass, the center of output shaft two output shaft is equipped with along the axial direction of seting up the center hole that is used for supplying power first output shaft, output shaft and output shaft two can relative rotations to output shaft and output shaft two, and output shaft two output shaft and two opposite directions are rotated when the first and second output shaft and the second output shaft is rotated, two output shaft and two output shaft that the opposite direction, and two output shaft that makes.

2. The purely electric, multi-paddle power glider of claim 1, wherein the drive motor and the power supply are both disposed on the rear side of the frame, the power supply being located near the bottom of the frame, the drive motor being located above the power supply.

3. The purely electric, multi-paddle power glider of claim 1, wherein the rotational speed of the output shaft one is equal to the rotational speed of the output shaft two.

4. The purely electric multi-paddle power glider according to claim 1, wherein the inner stator is hollow and has a receiving cavity, the reversing mechanism is disposed in the receiving cavity, the output shaft is disposed on the rotation axis of the outer rotor and penetrates through the center of the inner stator, and the output shaft penetrates through the receiving cavity inside the inner stator and is connected with the input end of the reversing mechanism.

5. The purely electric multi-paddle power glider according to claim 4, wherein the reversing mechanism is a gear set for reversing transmission, the gear set comprises a driving bevel gear, a driven bevel gear and a transmission bevel gear, the driving bevel gear and the driven bevel gear are oppositely arranged, the axis of the driving bevel gear is coincident with the axis of the driven bevel gear, the driving bevel gear is connected to the first output shaft and driven by the first output shaft to coaxially rotate, the driven bevel gear is rotatably connected to the inner stator, the transmission bevel gear is mounted on the inner wall of the accommodating cavity, the transmission bevel gear is arranged between the driving bevel gear and the driven bevel gear, two sides of the transmission bevel gear are respectively meshed with the driving bevel gear and the driven bevel gear for transmission, when the first output shaft rotates, the driving bevel gear and the driven bevel gear rotate in opposite directions, the second output shaft is connected to the driven bevel gear, and the axis of the transmission bevel gear is perpendicular to the axis of the driving bevel gear.

6. The purely electric multi-paddle power glider according to claim 1, wherein the outer rotor comprises a housing covering the outer side of the inner stator and an end cover connected to one end of the housing, the end cover is rotatably installed at one end of the inner stator, a fixing seat is fixed at the other end of the inner stator, a ventilation gap is arranged between the outer rotor and the inner stator, the end cover and the fixing seat are covered at two ends of the ventilation gap, a plurality of first ventilation holes are arranged on the end cover, a plurality of second ventilation holes are arranged on the fixing seat, and the first ventilation holes and the second ventilation holes are respectively communicated with two ends of the ventilation gap to form a heat dissipation air path.

7. The purely electric multi-propeller power glider according to claim 1, wherein the first propeller connected with the first output shaft is located at the rear side of the second propeller connected with the second output shaft, a fastening bolt is arranged between the first propeller and the first output shaft, the fastening bolt and the first output shaft are respectively located at two sides of the first propeller, a middle through hole is arranged at the center of the first propeller, the fastening bolt is rotatably inserted into the middle through hole and is in threaded connection with the first output shaft at the other side, the first propeller is installed on the first output shaft, a limiting component is arranged between the first propeller and the first output shaft to limit the relative rotation of the first propeller and the first output shaft, a locking piece is arranged on the first propeller and can move relative to the first propeller in the first axis direction to switch between a locking position and an unlocking position,

8. The purely electric power-driven multi-paddle power glider according to claim 7, wherein the locking member is sleeved on the outer side of the fastening bolt and can move relative to the fastening bolt along the length extending direction of the fastening bolt so as to be switched between a locking position and an unlocking position, a hole through which the fastening bolt passes is formed in the locking member, relative rotation between the locking member and the first propeller is limited, the fastening bolt comprises a rod body and a head connected to one end of the rod body, the locking member is arranged in the middle through hole, the rod body of the fastening bolt passes through the hole and is connected with the first output shaft, the head size of the fastening bolt is larger than the opening size of the hole, a reset spring is arranged in the middle through hole to drive the locking member to move to the locking position towards one side of the head of the fastening bolt, a space is reserved between the head of the fastening bolt and the inner wall of the middle through hole for inserting a tool for disassembling the fastening bolt, and when the tool is sleeved on the head of the fastening bolt, the tool is inserted into the space and pushes the locking member to move to the unlocking position against the elastic force of the reset spring.

9. The purely electric multi-paddle power glider according to claim 1, wherein the protective frame comprises a plurality of protective brackets disposed on the outer periphery of the frame, the plurality of protective brackets are disposed around the propeller, a protective rope is penetrated between the protective brackets to form a protective net cover, the protective brackets comprise a first bracket and a second bracket, one end of the first bracket is hinged with the frame, one end of the second bracket is hinged with the other end of the first bracket, so that the first bracket and the second bracket can be turned backward around respective hinge points to a state that the protective brackets are fully unfolded, or the protective brackets are folded toward the center of the front side of the frame for accommodating a human body,

10. The purely electric multi-paddle power glider according to claim 9, wherein the left and right sides of the bottom of the frame are provided with bottom brackets below the protective brackets, two ends of the protective ropes are respectively connected to the bottom brackets on the two sides, the rope bodies of the protective ropes sequentially pass through the protective brackets from one side of the frame to the other side, the protective brackets are provided with rope penetrating holes for the protective ropes to pass through, the bottom brackets are hinged on the frame, so that the bottom brackets can be turned backwards to be unfolded below the screw or folded towards the front side of the frame,