CN212950114U

CN212950114U - Ducted fan use state switching device

Info

Publication number: CN212950114U
Application number: CN202021453633.5U
Authority: CN
Inventors: 魏雨倩; 张巳如; 马玲; 常金成; 董育伟
Original assignee: Huaiyin Institute of Technology
Current assignee: Huai'an Quanli Glass Products Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-04-13
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses a duct fan user state auto-change over device belongs to the mechanical transmission field. The device comprises a ducted fan and wing plates; the folding seat is rotatably connected with the other end of the wing plate; the arc bent rod is convexly formed at the end part of the other end of the wing plate; the shape of the arc-shaped channel is matched with that of the arc-shaped bent rod and is arranged on the opening and closing seat, and the arc-shaped channel is connected with the arc-shaped bent rod in a matching way; the end part of the arc-shaped bent rod is provided with a limiting block with the sectional area larger than that of the arc-shaped bent rod, and the corresponding end part of the arc-shaped channel is provided with a limiting counter bore with the shape matched with that of the limiting block; when the ducted fan is folded, the limiting block is matched and abutted in the limiting counter bore. The utility model discloses an arc knee and arc passageway cooperation make the pterygoid lamina drive the culvert fan and have the stable orbit when rotating, and the culvert fan draws in and can in time stop after target in place in, can not appear drawing in the condition of cross position, avoids the phenomenon that culvert fan and automobile body bump, improves the security greatly, and this device structure is succinct, easily makes the use.

Description

Ducted fan use state switching device

Technical Field

The utility model belongs to the mechanical transmission field, more specifically say, relate to a duct fan user state auto-change over device.

Background

The ducted fan is widely applied to various vehicles, especially aircrafts, as a propulsion or lift device, in recent years, with the continuous development of science and technology, the research on hot tide of land-air amphibious type transporters such as hovercar, hovercar and the like is started, and the ducted fan is often applied to the design of the transporters due to the excellent thrust and lift performances of the ducted fan.

The land-air amphibious transporter generally does not need the assistance of a ducted fan when running on land, needs to be folded to reduce resistance and occupy the space at the moment, and when the folding structure of the ducted fan is designed, or the folding structure is designed to be too complex in order to ensure the opening and closing safety of the ducted fan, or only a simple opening and closing structure is designed, so that the ducted fan cannot be effectively ensured to stop in place when being opened and closed, and the safety risk of interference collision with a vehicle body exists.

Through retrieval, the Chinese patent publication number: CN 103395491B; the publication date is as follows: 2015, 12 months and 02 days; the utility model discloses a duct screw system of can opening seam and application system's hovercar, be provided with folding mechanism and locking mechanism in this application and be used for controlling the locking of opening and shutting of duct fan, though guaranteed that the duct fan can not take place to interfere with the automobile body in the in-process of opening and shutting and can in time stop, but the structure for realizing the function of opening and shutting is too complicated, breaks down easily, and the cost is too high.

In addition, chinese patent publication no: CN 205523488U; the publication date is as follows: 2016, month 08, 31; the utility model discloses a three duct VTOL hovercar, the duct fan in this application passes through telescopic link and upset pole and automobile body connection and realizes the function of opening and shutting, and although the structure that is used for realizing the function of opening and shutting is comparatively succinct, nevertheless through the structure of opening and shutting of this application, can't guarantee that the duct fan opens and shuts the timely stopping after targetting in place, has the safety risk.

Disclosure of Invention

In order to solve at least one of the above technical problems, according to an aspect of the present invention, there is provided a ducted fan use state switching device, the device including:

a ducted fan;

one end of the wing plate is fixedly connected to the outer side wall of the ducted fan;

further comprising:

the opening and closing seat is rotatably connected with the other end of the wing plate;

the arc-shaped bent rod is convexly formed at the end part of the other end of the wing plate, and the circle center of the arc-shaped bent rod is positioned on the rotating axis of the wing plate and the opening and closing seat;

the shape of the arc-shaped channel is matched with that of the arc-shaped bent rod, the arc-shaped channel is arranged on the opening and closing seat, and the arc-shaped channel is connected with the arc-shaped bent rod in a matching way;

the end part of the arc-shaped bent rod is provided with a limiting block with the sectional area larger than that of the arc-shaped bent rod, and the corresponding end part of the arc-shaped channel is provided with a limiting counter bore with the shape matched with that of the limiting block;

when the ducted fan is folded, the limiting block is matched and abutted in the limiting counter bore;

the end part of the opening and closing seat is convexly provided with a rotating shaft.

According to the utility model discloses duct fan user state auto-change over device, optionally, the pterygoid lamina is articulated with the seat of opening and shutting.

According to the utility model discloses duct fan user state auto-change over device, optionally, be provided with fan drive unit on the duct center axis of duct fan, fan drive unit includes:

the driving piece provides driving force for the operation of the ducted fan and can rotate positively and negatively;

the output shaft is in transmission connection with the output end of the driving piece;

and the clutch transmission part is arranged at the end part of the driving part and is in transmission connection with the output shaft, and when the driving part rotates forwards or backwards, the clutch transmission part controls the output shaft to transmit or stop transmitting outwards.

According to the ducted fan use state switching device of the embodiment of the present invention, optionally, both ends of the driving member are provided with output ends, namely, an output end a and an output end B;

the two output shafts are respectively an output shaft A and an output shaft B which are in transmission connection with the two output ends respectively;

the two clutch transmission parts are respectively in transmission connection with the corresponding output shafts through thread pairs;

under the action of forward rotation/reverse rotation of the driving piece, the output shaft moves relative to the corresponding clutch transmission piece along the axis direction of the output shaft, so that the output shaft is controlled to transmit/stop transmission outwards.

According to the ducted fan use state switching device of the embodiment of the present invention, optionally, the clutch transmission member is a threaded ring, which is a ring member having a threaded inner wall;

the output shaft is an output shaft A, one end of the output shaft is in transmission connection with the output end of the driving piece, and the other end of the output shaft penetrates through the threaded ring and extends out;

the output shaft A is located on the portion between the threaded ring and the driving piece, a threaded section A, a straight section A and a limiting ring are sequentially formed on the portion, between the threaded ring and the driving piece, of the output shaft A, threads on the wall surface of the threaded section A are matched with threads on the threaded ring, the wall surface of the straight section A is straight, and protrusions of the limiting ring are formed on the wall surface of the output shaft A.

According to the utility model discloses duct fan user state auto-change over device, optionally, still including the piece A that resets, it is the elastic component, is in compression state, and one end butt is on the screw ring, the other end and spacing collar butt.

According to the utility model discloses duct fan user state auto-change over device, optionally, the separation and reunion driving medium includes:

the transmission cover is of a cover body structure, and one end part of the transmission cover is in transmission connection with the driving piece;

the planetary gear train comprises a gear ring, a planetary gear carrier, a planetary gear and a sun gear, wherein the gear ring is fixedly connected with the inner side wall of the transmission cover

The end cover is sleeved outside the transmission cover, the center of the end part of the end cover protrudes along the axis direction of the end cover to form a clutch sleeve, a thread section B is formed on the outer wall of the top end of the clutch sleeve, a flat section B is formed on the outer wall of the bottom end of the clutch sleeve, and the planet wheel carrier is sleeved on the clutch sleeve and is in threaded connection with the clutch sleeve;

the output shaft is an output shaft B which is coaxially and fixedly connected with the sun gear, penetrates through the planet wheel carrier and the clutch sleeve and extends out of the end part of the end cover.

According to the utility model discloses duct fan user state auto-change over device, optionally, still include the retaining member, it cup joints on output shaft B, is located between planet wheel carrier and the sun gear, retaining member and output shaft B are static relatively, the retaining member is close to and has offered on the terminal surface of separation and reunion cover with screw thread section B matched with screw hole C.

According to the utility model discloses an on the other hand provides a duct fan method of opening and shutting, and the step is as follows:

A. is unfolded

a1, the wing plate rotates relative to the opening and closing seat until the end face of the wing plate contacts with the end face of the opening and closing seat;

a2, blades of the ducted fan are in transmission connection with an output shaft B, a driving piece is started to rotate in a positive mode, a transmission cover rotates to drive a gear ring to rotate, the gear ring drives a planetary gear carrier to rotate to be meshed with a threaded section B of a clutch sleeve, the planetary gear carrier is locked after being meshed, at the moment, power is output by a sun gear of a planetary gear train, the output shaft B connected with the planetary gear carrier rotates to drive the blades to rotate, and the ducted fan is started;

B. closure of the article

B1, starting the driving piece to rotate reversely, disengaging the planetary gear carrier from the thread section B of the clutch sleeve, outputting power by the planetary gear carrier, locking the sun gear by the locking piece and the clutch sleeve, stopping the output shaft B, and stopping the ducted fan;

b2, the wing plate rotates reversely relative to the opening and closing seat until the limit block at the end part of the arc-shaped bent rod is matched and abutted with the limit counter bore of the arc-shaped channel;

b3, the driving piece continuously rotates reversely, an output shaft A is arranged at the output end A, the output shaft A extends out after being meshed with the threaded ring, and the output shaft A transmits outwards.

Advantageous effects

(1) The utility model discloses a duct fan user state auto-change over device, through the cooperation of the curved bar of pterygoid lamina tip arc curved bar and the last arc passageway of seat that opens and shuts, make the pterygoid lamina drive the duct fan and have stable orbit when rotating, and under the cooperation of the spacing counter bore of the curved bar tip stopper and the corresponding position of arc passageway, the duct fan draws in and can in time stop in place, can not appear drawing in the condition of passing the position, avoid duct fan and automobile body to bump the phenomenon, the security has greatly improved, and this device structure is succinct, easily make and use;

(2) the utility model discloses a ducted fan user state auto-change over device, pterygoid lamina and the seat of opening and shutting are articulated, obtain stable axis of rotation, cooperate the structure of arc knee and arc passageway, have further stabilized the rotation orbit of pterygoid lamina, ensure the safe and stable operation of ducted fan structure in the process of opening and shutting, reduce the operation fault rate;

(3) the utility model discloses a ducted fan user state auto-change over device, through the setting of the axis of rotation on the seat that opens and shuts, the drive structure on the cooperation conveyer, can rotate the nimble position of adjusting pterygoid lamina and ducted fan through the axis of rotation when the pterygoid lamina is drawn in, can control ducted fan wind gap orientation and then adjust the flight state through rotating when the pterygoid lamina expandes, make the utility model discloses a device has more function realization, and then has increased the application function scope of this device;

(4) the utility model discloses a ducted fan service condition auto-change over device, fan drive unit's driving piece can just reverse, through setting up separation and reunion driving medium and output shaft cooperation, the just reverse rotation of control driving piece makes separation and reunion driving medium control output shaft whether external transmission, and then to the driven demand when satisfying the different motion state of conveyer;

(5) the utility model discloses a ducted fan service condition auto-change over device, through the driving piece both ends output that sets up fan drive unit, the output shaft and the separation and reunion driving medium that the cooperation corresponds, driving piece corotation when pterygoid lamina expandes makes ducted fan work to the blade transmission, the driving piece reversal when pterygoid lamina is reasonable breaks away from the transmission to the blade, ducted fan stop work, cooperate with another output end through the reversal, make the driving piece still can transmit other required positions of conveyer after pterygoid lamina folds, carried out abundant utilization to the driving piece in limited space;

(6) the utility model discloses a ducted fan user state auto-change over device sets up the screw ring and closes up the transmission end to the conveyer for clutch transmission spare cooperation output shaft A after as pterygoid lamina 2000 folds up, output shaft A stretches out the casing with the screw ring cooperation after the pterygoid lamina folds up, set up drive mechanism at the conveyer corresponding position, output shaft A stretches out behind the casing and is connected with the drive mechanism transmission, thereby carry out the transmission to the conveyer, reverse operation driving piece when pterygoid lamina expandes, output shaft A and screw ring cooperation withdraw the casing, output shaft A does not drive outward this moment, does not influence the normal use of ducted fan;

(7) the utility model discloses a ducted fan service condition auto-change over device sets up reset piece A and ensures that output shaft A and screw ring satisfy the atress condition of meshing state all the time, can stretch out in time/withdraw the casing when the motor rotates to ensure the external transmission validity and the promptness of this output;

(8) the ducted fan using state switching device of the utility model is provided with the clutch transmission part consisting of the planetary gear train, and when the driving part rotates forwards and backwards, the device can flexibly and accurately switch the state of external transmission or not, and simultaneously has the functions of external speed-up transmission and speed-down transmission, thereby meeting the requirements of various motion states of a transporter and greatly saving the occupation of space;

(9) the utility model discloses a ducted fan service condition auto-change over device, through the setting of retaining member, when the ducted fan does not start, the sun gear in the planetary gear train passes through retaining member and separation and reunion cover locking, guarantees that output shaft B can not external transmission;

(10) the ducted fan opening and closing method has simple opening and closing process, the opening and closing process can not be over-positioned and operated under the structural limitation of the wing plate and the opening and closing seat, the condition of collision with a transporter body can not occur, and the safety is high; and by controlling the steering of the driving piece, the ducted fan outputs thrust lift force after being unfolded, and outputs power to the transporter instead of outputting the thrust lift force after being folded.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

Fig. 1 shows a schematic structural view of a ducted fan use state switching device of the present invention;

fig. 2 is a schematic structural view of another view angle of the ducted fan use state switching device according to the present invention;

figure 3 shows a detailed schematic view of the structure of the wing end of the invention;

figure 4 shows a detailed schematic view of another perspective of the wing end structure of the present invention;

fig. 5 shows a schematic structural view of the opening and closing seat of the present invention;

fig. 6 shows a schematic structural view of another view angle of the opening and closing seat of the present invention;

fig. 7 shows a schematic structural diagram of a fan driving unit of the present invention;

fig. 8 shows a schematic structural view of the fan driving unit of the present invention after being partially cut;

fig. 9 shows a schematic structural view of a characteristic portion of the output end a of the present invention provided with a reset piece a;

figure 10 shows a schematic view of the threaded ring structure of the present invention;

fig. 11 shows a schematic structural diagram of the output end a of the present invention;

FIG. 12 is a schematic view of FIG. 11 in a disassembled state after the output shaft A is disassembled;

FIG. 13 is a schematic view of the driver shown disassembled from the end cap;

figure 14 shows an exploded view of a clutch drive construction of the present invention;

fig. 15 shows a schematic structural diagram of the planetary gear train of the present invention;

FIG. 16 is an exploded view of the planetary gear set of FIG. 15;

fig. 17 shows a schematic structural diagram of the planetary carrier of the present invention;

FIG. 18 shows a schematic view of the retaining member of the present invention;

fig. 19 is a schematic view of the end cap according to the present invention;

fig. 20 shows another perspective structural view of the end cap of the present invention;

fig. 21 is a schematic view showing a folded state of the ducted fan using state switching device according to the present invention when applied to a transporter;

fig. 22 is a schematic view of another view angle of the ducted fan in a folded state after the ducted fan using state switching device of the present invention is applied to a transporter;

fig. 23 is a schematic view illustrating a deployed state of the ducted fan using state switching device according to the present invention when the ducted fan using state switching device is applied to a transporter;

fig. 24 is a schematic view showing a state that the air outlet of the ducted fan faces the ground after the ducted fan using state switching device of the present invention is applied to a transporter;

FIG. 25 is a schematic view showing the positional relationship between the ducted fans, wing panels and reduction gearbox when the transporter is in a land-going state;

fig. 26 is an enlarged view at a in fig. 25.

Reference numerals:

1000. a ducted fan; 1010. a fan driving unit; 1011. a housing; 1020. a blade;

2000. a wing plate; 2010. an arc-shaped bent rod; 2011. a limiting block; 2020. a hinged seat A;

3000. an opening and closing seat; 3010. an arc-shaped channel; 3011. limiting counter bores; 3020. a hinged seat B; 3030. a rotating shaft;

4000. a pin shaft;

5000. a vehicle body; 5001. a wheel;

6000. a reduction gearbox; 6010. a transmission shaft of the reduction gearbox;

1. a drive unit; 10. an output end A; 11. an output end B;

2. an output shaft A; 20. a threaded section A; 21. a straight section A; 22. a limiting ring; 23. a connector; 230. connecting holes;

3. a threaded ring; 30. a threaded hole A; 300. a thread A;

4. a reset member A;

5. a transmission cover;

6. a planetary gear train; 60. a ring gear; 61. a planet carrier; 610. a threaded hole B; 620. a planet wheel I; 621. a planet wheel II; 63. a sun gear;

7. an end cap; 70. a clutch sleeve; 700. a threaded section B; 701. a straight section;

8. an output shaft B;

9. a reset member B; 90. a locking member; 900. a threaded hole C; 901. a keyway.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "a", "B", "C", "one end", "the other end" and similar words in the description and claims of the present application do not denote any order, quantity, or importance, but rather the present application is used to distinguish one element from another; "Forward rotation" and "reverse rotation" also do not indicate a particular direction of rotation, but are used to distinguish between different directions of rotation; also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

Example 1

The ducted fan use state switching device of the present embodiment includes:

a ducted fan 1000;

a wing plate 2000 having one end fixedly connected to an outer sidewall of the ducted fan 1000;

further comprising:

an opening and closing seat 3000 rotatably connected to the other end of the wing plate 2000;

the arc-shaped bent rod 2010 protrudes from the end part of the other end of the wing plate 2000, and the circle center of the arc-shaped bent rod 2010 is positioned on the rotation axis of the wing plate 2000 and the opening and closing seat 3000;

the arc-shaped channel 3010 is matched with the arc-shaped bent rod 2010 in shape and is arranged on the opening and closing seat 3000, and the arc-shaped channel 3010 is connected with the arc-shaped bent rod 2010 in a matching manner;

a limiting block 2011 with the sectional area larger than that of the arc-shaped bent rod 2010 is arranged at the end part of the arc-shaped bent rod 2010, and a limiting counter bore 3011 with the shape matched with that of the limiting block 2011 is arranged at the corresponding end part of the arc-shaped channel 3010;

when the ducted fan 1000 is folded, the limiting block 2011 is matched and abutted in the limiting counter bore 3011;

the end of the opening and closing seat 3000 is provided with a rotary shaft 3030 in a protruding way.

Duct fan's structure of opening and shutting among the prior art or too complicated or can't ensure the security, based on this problem the utility model relates to a duct fan user state auto-change over device.

As shown in fig. 1 and fig. 2, the ducted fan 1000 and the wing plate 2000 disposed on the outer sidewall of the ducted fan 1000 are both of the existing structural design, and the present application is different in that an opening and closing seat 3000 is further disposed, the opening and closing seat 3000 is disposed on the vehicle body, the opening and closing seat 3000 is of a block structure, and an end of the wing plate 2000 is rotatably connected with an end of the opening and closing seat 3000, that is, under the condition that the opening and closing seat 3000 is fixed, the wing plate 2000 can rotate around the opening and closing seat 3000 by being driven by an external driving member (not shown in the figure), so as to drive the ducted fan 1000 to rotate to achieve the purpose of; a further improvement point of the present embodiment is that an arc-shaped bending rod 2010 is convexly disposed on an end surface of the wing plate 2000 near the opening and closing seat 3000, as shown in fig. 3 and 4, the arc-shaped bending rod 2010 is disposed with a rotation axis position of the wing plate 2000 relative to the opening and closing seat 3000 as a center of a circle, and at the same time, an arc-shaped channel 3010 having a shape matching the arc-shaped bending rod 2010 is disposed at a corresponding position of the opening and closing seat 3000, as shown in fig. 5 and 6, the arc-shaped bending rod 2010 and the arc-shaped channel 3010 are connected in a matching manner, and under a limit of the matching between the arc-shaped bending rod 2010 on the wing plate 2000 and the arc-shaped channel 3010 on the opening and closing seat 3010, the wing plate 2000 can have a more stable rotation trajectory when rotated; further, the curved rod 2010 is formed at the end of the wing plate 2000, one end of the curved rod 2010 is connected to the wing plate 2000, the other end of the curved rod 2010 is a tail end, the tail end of the curved rod is provided with a limit block 2011, the cross-sectional area of the limit block 2011 is larger than that of the curved rod 2010, the shape of the limit block 2011 is not limited, the curved rod 2010 can be in a step shape, a cylinder shape, a prism shape and the like, the curved rod is cylindrical in the embodiment, correspondingly, the position of the curved channel 3010 where the tail end of the curved rod 2010 is located when the wing plate 2000 is folded, namely, the corresponding end of the curved channel 3010 is provided with a limit counter bore 3011 with a shape matched with the shape of the limit block 2011, through the structural arrangement, when the wing plate 2000 is folded, the limit block 2010 is just in the limit counter bore 3011, and because the cross-sectional area of the limit block 2010 is larger than that of the curved rod, therefore, the ducted fan 1000 can be stopped in time after reaching the position during folding, and cannot collide with a vehicle body, so that the safety is ensured; when the wing plate 2000 is unfolded, since the end of the wing plate 2000 is rotatably connected to the opening and closing seat 3000, the end of the wing plate 2000 abuts against the end of the opening and closing seat 3000 after the wing plate 2000 is unfolded in place, thereby positioning the ducted fan 1000 in the unfolded state can be completed.

As shown in fig. 1, 2, 5 and 6, one end of the open-close seat 3000 is rotatably connected to the wing plate 2000, and the other end thereof is provided with a rotating shaft 3030, since the open-close seat 3000 is mounted on the vehicle body, a rotating driving member is arranged at a position corresponding to the rotating shaft 3030 and is in transmission connection with the rotating shaft 3030, so that the open-close seat 3000 can be rotated by driving the rotating shaft 3030 to drive the wing plate 2000 to rotate, when the wing plate 2000 is folded, the positions of the wing plate 2000 and the ducted fan 1000 can be adjusted by rotating, and when the wing plate 2000 is unfolded, the direction of the air opening of the ducted fan 1000 on the wing plate 2000 can be adjusted by rotating to adjust the flying state; through the setting of axis of rotation 3030, the drive structure on the cooperation conveyer can be so that this embodiment has more function and realizes, and then has increased the applicable functional scope of duct fan user state auto-change over device of this embodiment.

Example 2

The ducted fan use state switching device of the present embodiment is further improved on the basis of embodiment 1, and the wing plate 2000 is hinged to the opening and closing seat 3000.

The wing plate 2000 and the opening and closing seat 3000 are rotatably connected through a hinge structure, and specifically comprise a hinge seat A2020 which is positioned at the end of the wing plate 2000 and is shown in fig. 3 and 4, a hinge seat B3020 which is positioned at the end of the opening and closing seat 3000 and is shown in fig. 5 and 6, and a pin shaft 4000 which is shown in fig. 1 and 2, wherein the hinge seat A2020 and the hinge seat B3020 are matched and then are hinged through the pin shaft 4000, under the hinge structure, the wing plate 2000 and the opening and closing seat 3000 have a stable rotating shaft, and the rotating track is further limited by matching the arc-shaped bent rod 2010 and the arc-shaped channel 3010, so that the safe and stable operation of the ducted fan 1000 structure in the opening and closing process can be ensured, and the operation failure.

Further, in this embodiment, the arc-shaped bent rods 2010 are provided with a plurality of curved channels 3010, and the curved channels 3010 and the limiting blocks 2011 and the limiting counter bores 3011 are also provided with a plurality of curved channels, so that the stability of the rotating track of the wing plates 2010 can be further enhanced by the aid of the arc-shaped bent rods 2010 and the corresponding structures, and a function of stopping in time after the arc-shaped bent rods 2010 are drawn in place is further ensured.

Example 3

The ducted fan use state switching device of the present embodiment is further improved on the basis of embodiments 1 to 2, a fan driving unit 1010 is disposed on a central axis of a duct of the ducted fan 1000, and the fan driving unit 1010 includes:

a driving member 1 which provides a driving force for the operation of the ducted fan 1000 and can rotate forward and backward;

the output shaft is in transmission connection with the output end of the driving piece 1;

and the clutch transmission part is arranged at the end part of the driving part 1 and is in transmission connection with the output shaft, and when the driving part 1 rotates forwards or backwards, the clutch transmission part controls the output shaft to transmit or stop transmitting outwards.

The fan driving unit 1010 of the ducted fan 1000 is fixed on the ducted fan 1000 through a fixing sleeve on the central axis of the ducted, when the wing plate 2000 is folded, the ducted fan 1000 is in a non-use state at this time, the fan driving unit 1010 needs to stop driving the blades 1020 of the ducted fan 1000, when the wing plate 2000 is unfolded, the ducted fan 1000 needs to provide a thrust lift force to the outside, at this time, the fan driving unit 1010 needs to transmit to the outside, when the transporter is used at ordinary times, whether the fan driving unit 1010 transmits to the outside needs to be controlled according to the specific motion state, for this need, a clutch transmission part is provided in this embodiment, to control whether the output shaft transmits to the outside according to the forward rotation and the reverse rotation of the driving part 1 in the fan driving unit 1010, so as to meet the requirements of.

Example 4

The ducted fan use state switching device of the present embodiment is further improved on the basis of embodiment 3, and output ends, namely an output end a10 and an output end B11, are respectively arranged at both ends of the driving member 1;

the two output shafts are respectively an output shaft A2 and an output shaft B8 which are in transmission connection with the two output ends respectively;

In order to drive the blades 1020 to rotate, the ducted fan 1000 must be provided with a driving member 1 for driving, but when the ducted fan 1000 is not used, that is, when the wing plates 2000 are folded, if the driving member 1 is stopped to be driven to be idle at this time, or the driving member is idle through a clutch transmission member without external transmission, it is a waste of energy and a waste of limited installation space in the vehicle body, therefore, the driving member 1 in this embodiment is provided with two output ends, and two output shafts and the clutch transmission member are cooperatively provided, as shown in fig. 7 and 8, when the driving member 1 rotates forwards, one of the output shafts and the clutch transmission member cooperate to transmit outwards, in this embodiment, when the wing plates 2000 are unfolded, that is, when the ducted fan 1000 is used, the driving member 1 rotates forwards, at this time, one of the output shafts drives the blades 1020 under the cooperation of one clutch transmission member, the, the driving piece 1 is controlled to turn over, at the moment, an output shaft originally driving the blades 1020 stops driving the blades 1020 under the control of the corresponding clutch driver, the ducted fan 1000 stops rotating, the structure of the ducted fan 1000 is protected, under the control of the corresponding clutch driver, the other output end can drive the other output end outwards, the driving end can be used for being in transmission connection with a corresponding mechanism on a transporter and used for driving the transporter, therefore, the driving piece 1 on the ducted fan 1000 is effectively utilized, and the effect of the driving piece is fully exerted.

Example 5

The embodiment shows a structural mode of the clutch driver and the output shaft of the utility model, the clutch driving member is a threaded ring 3 which is a ring member with threads arranged on the inner wall;

the output shaft is an output shaft A2, one end of the output shaft is in transmission connection with the output end of the driving piece 1, and the other end of the output shaft passes through the threaded ring 3 and extends out;

the output shaft A2 is located on the part between the threaded ring 3 and the driving piece 1 and is sequentially provided with a threaded section A20, a straight section A21 and a limiting ring 22, threads on the wall surface of the threaded section A20 are matched with threads on the threaded ring 3, the wall surface of the straight section A21 is straight, and the limiting ring 22 protrudes and is formed on the wall surface of the output shaft A2.

In this embodiment, the driving member 1, i.e. the motor, is disposed in the housing 1011 as shown in fig. 7 and 8 to protect and fix the components of the fan driving unit 1010, fig. 10 shows a detailed structure of the threaded ring 3, a threaded hole a30 is formed in the middle of the threaded ring 3, a thread a300 is formed on the wall of the threaded hole, and the threaded ring 3 is fixed to the housing 1011 by four fixing legs extending from the periphery.

For the clutch transmission member of this embodiment, the output shaft is an output shaft a2 structure, which can be embodied in detail in fig. 11 and 12, the output shaft a2 is in transmission connection with an output end a10 of the motor, in this embodiment, the connection end of the output shaft a2 is in a spline shape, and the output end of the motor is provided with a matching spline groove shape to ensure a transmission effect and prevent relative rotation between the output shaft a2 and the output end, the output shaft a2 and the output end are movably connected in a displaceable manner, and the output shaft a2 can be displaced along the spline groove direction under the limitation of the spline groove; the output shaft a2 of this embodiment is disposed through the threaded ring 3, as shown in fig. 8, a threaded section a20, a straight section a21 and a stop collar 22 are sequentially disposed at a portion of the output shaft a2 between the threaded ring 3 and the output end, when the motor rotates to drive the output shaft a2 to rotate, the threaded section a20 meets the engagement condition with the threaded ring 3 during the rotation, during the engagement precession, since the threaded ring 3 is fixed, the output shaft a2 is axially displaced and further extends out from the threaded ring 3, when viewed from the perspective of fig. 7, the output shaft a2 extends out from the housing 1011, when the output shaft a2 is displaced by a distance, the straight section a21 enters the threaded ring 3, the output shaft a2 is disengaged from the threaded ring 3, at this time, the output shaft a2 does not axially displace any more, but rotates only under the driving of the motor, accordingly, a corresponding transmission mechanism may be disposed outside the housing 1011, after the output shaft a2 extends out from the housing 1011, the motor is connected with the transmission mechanism in a transmission way to perform external transmission, when the external transmission needs to be stopped, the motor is operated reversely, under the reverse meshing of the thread section A20 and the thread ring 3, the output shaft A2 is displaced axially in a reverse direction and is retracted into the shell 1011 from the perspective of figure 7, and the transmission mechanism is disengaged from the external transmission mechanism at the moment, so that the external transmission is stopped.

In the embodiment, the motor rotates reversely after the wing plates 2000 are folded, when the motor rotates reversely, the output shaft A2 is matched with the threaded ring 3 to extend out of the shell 1011, the transmission mechanism is arranged at the corresponding position of the transporter, the output shaft A2 extends out of the shell 1011 and is in transmission connection with the transmission mechanism, so that the transporter is transmitted, when the wing plates 2000 are unfolded, the motor rotates forwards, the output shaft A2 is matched with the threaded ring 3 to retract the shell 1011 at the moment, the output shaft A2 does not transmit outwards, and the normal use of the ducted fan 1000 is not influenced.

Example 6

The ducted fan use state switching device of the present embodiment is further improved on the basis of embodiment 6, and further includes a reset piece a4, which is an elastic piece and is in a compressed state, one end of which abuts against the threaded ring 3, and the other end of which abuts against the stop collar 22.

When the motor rotation control output shaft a2 is retracted, there may be a situation that the threaded section a20 is not engaged with the threaded ring 3 in time, which may cause adverse effect on external transmission, and to avoid this phenomenon, this embodiment is further improved, as shown in fig. 9, a reset piece a4 is provided, which is an elastic piece, in a compressed state, one end of which is abutted against the threaded ring 3, and the other end of which is abutted against the spacing ring 22, and the reset piece a4 may be a spring, an elastic washer, or other elastic member, in this embodiment, the reset piece a4 is a large-pitch spring, the spring is sleeved on the output shaft a2, one end of which is abutted against the threaded ring 3, and the other end of which is abutted against the spacing ring 22, and is in a compressed state, when the motor rotation output shaft a2 extends, the reset piece a4 is further compressed, when the motor rotates in reverse direction, under the elastic deformation acting force of the reset piece a4, the stress condition of the meshing state is always met between the output shaft A2 and the threads of the threaded ring 3, and when the output shaft A2 rotates to be smoothly meshed with the threads of the threaded ring 3, the output shaft A2 enters the meshing state immediately, so that the output shaft A2 is guaranteed to be withdrawn in time during reverse rotation.

Example 7

This embodiment shows the utility model discloses another kind of structural style of clutch transmission ware and output shaft, the clutch transmission spare includes:

the transmission cover 5 is of a cover body structure, and one end part of the transmission cover is in transmission connection with the driving piece 1;

the planetary gear train 6 comprises a gear ring 60, a planetary gear carrier 61, planetary gears and a sun gear 63, wherein the gear ring 60 is fixedly connected with the inner side wall of the transmission cover 5

The end cover 7 is sleeved outside the transmission cover 5, the center of the end part of the end cover 7 protrudes along the axis direction of the end cover 7 to form a clutch sleeve 70, a thread section B700 is formed on the outer wall of the top end of the clutch sleeve 70, a flat section B701 is formed on the outer wall of the bottom end of the clutch sleeve 70, and the planet carrier 61 is sleeved on the clutch sleeve 70 and is in threaded connection with the clutch sleeve 70;

the output shaft is an output shaft B8 which is coaxially and fixedly connected with the sun gear 63, penetrates through the planetary gear carrier 61 and the clutch sleeve 70 and extends out of the end part of the end cover 7.

As shown in fig. 13 and 14, one end of the transmission cover 5 faces the driving member 1, i.e. the output end of the motor, and is in transmission connection with the output end of the motor, and as the motor is started, the transmission cover 5 rotates along with the motor, the planetary gear train 6 is accommodated in the inner wall of the transmission cover 5, and the structure of the planetary gear train 6 is shown in fig. 15 and 16, wherein a gear ring 60 of the planetary gear train 6 is fixedly connected with the transmission cover 5, and when the transmission cover 5 rotates, the gear ring 60 rotates, and the gear ring 60 is the power input in the planetary gear train 6; the end cover 7 covers the outer side of the transmission cover 5 and is arranged coaxially with the transmission cover 5, the same end of the end cover is in a cover shape with an open end and an unopened end, as shown in fig. 19 and 20, a straight section B701 and a threaded section B700 are arranged on the clutch sleeve 70 arranged in the center of the end part of the end cover 7, the planet carrier 61 is sleeved on the clutch sleeve 70, a threaded hole B610 is also arranged on the planet carrier 61, and the specific structure of the planet carrier 61 is shown in fig. 17.

In this embodiment, the transmission cover 5 is in transmission connection with the output end B11 of the driving member 1, when the motor rotates forward, the transmission cover 5 rotates along with the motor to drive the gear ring 60 to rotate, power is input into the planetary gear train 6 from the gear ring 60, the planetary carrier 61 rotates under the drive of the gear ring 60, during the rotation process, the transmission cover enters into an engagement state with the thread section B700 of the clutch sleeve 70, after the planetary carrier 61 is engaged to the top end of the clutch sleeve 70, the planetary carrier is limited by the top end of the clutch sleeve 70 (the limitation can be performed by forming a ring member with a large diameter at the top end to prevent the planetary carrier 61 from being disengaged from the clutch sleeve 70 after being engaged over), at this time, the planetary carrier 61 is locked, according to the transmission characteristics of the planetary carrier 61, after the power is input from the gear ring 60, the power is output by the sun gear 63, so that the output shaft B8 fixedly connected with the sun gear, thus, when the motor rotates forward, the blades 1020 of the ducted fan 1000 rotate, and the ducted fan 1000 outputs a thrust lift force; on the contrary, when the motor rotates reversely, the transmission cover 5 rotates reversely to drive the gear ring 60 to rotate reversely, power is input from the gear ring 60, the planet carrier 61 rotates reversely under the drive of the gear ring 60, is disengaged from the thread section B700 of the clutch sleeve 70 and does not enter a meshing state, the planet carrier 61 is in a straight section B701 and idles, according to the transmission characteristics of the planetary gear train 6, the power is input from the gear ring 60 and is output from the planet carrier 61, the sun gear 63 does not drive outwards, and therefore, when the motor rotates reversely, the blades 1020 of the ducted fan 1000 cannot be started.

In the embodiment, after the wing plates 2000 are unfolded, the motor rotates forwards, the ducted fan 1000 is started to output thrust and lift, at the moment, the output shaft A2 is retracted into the shell 1011, external transmission is not performed, the operation of the ducted fan 1000 is not influenced, after the wing plates 2000 are folded, the motor rotates backwards, at the moment, the blades 1020 of the ducted fan 1000 are not transmitted, the ducted fan 1000 stops working, the output shaft A2 extends out of the shell 1011, and external transmission is performed after the output shaft A2 is in transmission connection with a transmission mechanism arranged on a transporter.

Further, as shown in fig. 16, the planetary gear train 6 of the present embodiment includes a ring gear 60, a planetary carrier 61, a first planetary gear 620, a second planetary gear 621 and a sun gear 63, the ring gear 60 is engaged with the first planetary gear 620, the first planetary gear 620 and the second planetary gear 621 are coaxially driven and have the same angular velocity, the first planetary gear 620 and the second planetary gear 621 are fixed on the planetary carrier 61, and the sun gear 63 is engaged with the second planetary gear 621.

Example 8

The ducted fan use state switching device of the embodiment is further improved on the basis of the embodiment 7, and further comprises a locking member 90 which is sleeved on the output shaft B8 and located between the planetary carrier 61 and the sun gear 63, the locking member 90 and the output shaft B8 are relatively static, and a threaded hole C900 matched with the threaded section B700 is formed in the end face, close to the clutch sleeve 70, of the locking member 90.

When the motor rotates reversely, in order to ensure that the sun gear 63 can be locked to ensure that the output shaft B8 is not transmitted outwards, a locking piece 90 is sleeved on the output shaft B8 and is positioned between the planet wheel carrier 61 and the sun wheel 63, the locking member 90 and the output shaft B8 are relatively static, a threaded hole C900 matched with the threaded section B700 is formed in the end surface, close to the clutch sleeve 70, of the locking member 90, the position of the locking member 90 in the embodiment is shown in figure 16, the structure of the locking member 90 is shown in figure 18, the retaining member 90 and the output shaft B8 can be held stationary relative to each other by providing a key way 901 in the retaining member 90 that engages a key connection, which, when the motor is reversed, the planet wheel carrier 61 rotates under the transmission of the gear ring 60 to drive the planet wheels to rotate and drive the sun wheel 63 to rotate, so that the locking piece 90 is engaged with the threaded section B700 of the clutch sleeve 70 and then locked, at the moment, the sun wheel 63 keeps a static state, and power is input from the gear ring 60 and output from the planet wheels 61.

Further, when the motor rotates forwards, in order to ensure that planetary carrier 61 can be meshed with threaded section B700 in time, reset element B9 is provided, which is an elastic element and is in a compressed state, one end of the reset element is abutted to the end of end cover 7, and the other end of the reset element is abutted to planetary carrier 61, reset element B9 of the embodiment is an elastic washer, and is sleeved on output shaft B8, as shown in fig. 15 and 16, when planetary carrier 61 is located at straight section B701, reset element B9 is compressed, and when the motor rotates backwards, and the meshing condition of planetary carrier 61 and clutch sleeve 70 is met, the reset element B8910 can be meshed with threaded section B700 in time.

Example 9

The opening and closing method of the ducted fan of the embodiment comprises the following steps:

A. is unfolded

a1, wing plate 2000 rotates relative to the open-close seat 3000 until the end face of wing plate 2000 contacts with the end face of open-close seat 3000;

a2, blades 1020 of the ducted fan 1000 are in transmission connection with an output shaft B8, a driving piece 1 is started to rotate positively, a transmission cover 5 rotates to drive a gear ring 60 to rotate, the gear ring 60 drives a planetary carrier 61 to rotate to be engaged with a threaded section B700 of a clutch sleeve 70, the planetary carrier 61 is locked after being engaged, at the moment, the planetary gear train 6 outputs power by a sun gear 63, the output shaft B8 connected with the sun gear rotates to drive the blades 1020 to rotate, and the ducted fan 1000 is started;

B. closure of the article

B1, starting the driving piece 1 to rotate reversely, disengaging the planetary gear carrier 61 from the threaded section B700 of the clutch sleeve 70, outputting power by the planetary gear train 6 through the planetary gear carrier 61, locking the sun gear 63 with the clutch sleeve 70 through the locking piece 90, stopping the rotation of the output shaft B8, and stopping the rotation of the ducted fan 1000;

b2 and the wing plate 2000 reversely rotate relative to the opening and closing seat 3000 until a limit block 2011 at the end part of the arc-shaped bent rod 2010 is matched and abutted with a limit counter bore 3011 of the arc-shaped channel 3010;

b3, the driving piece 1 rotates reversely, an output shaft A2 is arranged at the output end A10, the output shaft A2 is meshed with the threaded ring 3 and then extends out, and the output shaft A2 transmits outwards.

When the ducted fan 1000 is unfolded, the driving piece 1 is started to rotate forward after the forerunner movable wing plate 2000 is unfolded in place, under the matching of the planetary gear train 6 and the clutch sleeve 70 on the end cover 7, the sun gear 63 drives outwards, and then the blades 1020 fixedly connected with the output shaft B8 drive outwards, the ducted fan 1000 is started to output thrust and lift, and at the moment, the output shaft A2 retracts into the shell 1011 under the action of the threaded ring 3 and does not drive outwards; when the ducted fan 1000 is folded, the driving piece 1 rotates reversely, the sun gear 63 in the planetary gear train 6 is locked and does not transmit outwards, the blades 1020 of the ducted fan 1000 stop rotating, after the wing plates 2000 are folded in place, the driving piece 1 rotates reversely continuously, the output shaft A2 extends out of the shell 1011 and is in transmission connection with the corresponding transmission mechanism on the transporter for transmission.

The opening and closing method of the ducted fan has the advantages that the opening and closing process is simple, the ducted fan cannot be in over-position operation under the structural limitation of the wing plate 2000 and the opening and closing seat 3000, the condition of collision with a carrier body cannot occur, and the safety is high; and by controlling the steering of the driving piece 1, the ducted fan 1000 outputs thrust lift force after being unfolded, and outputs power to the transporter instead of outputting the thrust lift force after being folded.

Example 10

The ducted fan use state switching device of the present embodiment is applied to an air-ground amphibious transporter, wherein the opening and closing seat 3000 is rotatably connected with a transporter body 5000 through a rotating shaft 3030, the transporter body 5000 is in a motorcycle shape, and ducted fan use state switching devices are arranged on both sides of the transporter body 5000, as shown in fig. 21 and 22.

When the transporter is in a land state, the ducted fans 1000 are folded, as shown in fig. 21 and 22; when the transporter is in flight, the ducted fan 1000 is deployed, as shown in fig. 23 and 24.

Example 11

The ducted fan using state switching device of the embodiment is further improved on the basis of the embodiment 10, and the transportation device is provided with a reduction gearbox 6000 which is arranged in the vehicle body 5000 and is in transmission connection with wheels 5001 of the vehicle body 5000. A reduction gearbox transmission shaft 6010 is arranged on the reduction gearbox 6000 and transmits power to the reduction gearbox 6000;

after the ducted fan 1000 is folded, an output shaft A10 is in transmission connection with a transmission shaft 6010 of the reduction gearbox.

As shown in fig. 23 and 24, the reduction gearbox 6000 is disposed at the lower part of the vehicle body 5000, and the structure in which the output shaft a10 is in transmission connection with the reduction gearbox transmission shaft 6010 after the ducted fan 1000 is folded is as shown in fig. 25 and 26.

In the embodiment, a driving component for driving the wheels 5001 to rotate in the land state of the transporter is omitted, the weight of the vehicle body 5000 is reduced, and the installation space is saved, in the land state, the ducted fan 1000 is folded and retracted, at the moment, the output end A10 of the driving piece 1 in the ducted fan 1000 is very close to the vehicle body 5000, a reduction gearbox 6000 is arranged at a corresponding position, because the ducted fan 1000 outputs lift thrust and needs high power, the driving piece 1 directly transmits the wheels 5001 of the transporter, the transmission speed is too high, the reduction gearbox 6000 is arranged, the output shaft A2 transmits the reduction gearbox 6000, the wheels 5001 are transmitted after the reduction gearbox 6000, and the speed requirement in the land state is more easily met.

The structure of the reduction gearbox 6000 and the structure of the transmission connection between the reduction gearbox 6000 and the wheels 5001 are already common in the prior art, and are not described herein.

In the embodiment, the output end a10 of the driving element 1 is connected with the output shaft a2, and is in transmission connection with the reduction gearbox 6000 after the ducted fan 1000 is folded to transmit the vehicle wheel 5001, the output end B11 is connected with the output shaft B8 through the planetary gear train 6, and the blades 1020 are controlled to output thrust lift force after the ducted fan 1000 is unfolded.

The examples of the utility model are only right the utility model discloses a preferred embodiment describes, and not right the utility model discloses design and scope are injectd, do not deviate from the utility model discloses under the prerequisite of design idea, the field engineering technical personnel are right the utility model discloses a various deformation and improvement that technical scheme made all should fall into the protection scope of the utility model.

Claims

1. A bypass fan using state switching device comprises,

a ducted fan;

it is characterized by also comprising:

2. The ducted fan use state switching apparatus according to claim 1, wherein: the wing plate is hinged with the opening and closing seat.

3. The ducted fan use state switching apparatus according to claim 2, wherein a fan driving unit is provided on a central axis of the duct of the ducted fan, the fan driving unit comprising:

4. The ducted fan use state switching apparatus according to claim 3, wherein:

the two ends of the driving piece are provided with output ends, namely an output end A and an output end B;

5. The ducted fan use state switching apparatus according to claim 4, wherein:

the clutch transmission part is a threaded ring, and the clutch transmission part is a ring part with threads arranged on the inner wall;

6. The ducted fan use state switching apparatus according to claim 5, wherein: still including restoring to the throne piece A, it is the elastic component, is in compression state, and one end butt is on the screw ring, and the other end and spacing collar butt.

7. The ducted fan usage status switching apparatus according to claim 4, wherein the clutch transmission includes:

the planetary gear train comprises a gear ring, a planetary gear carrier, a planetary gear and a sun gear, wherein the gear ring is fixedly connected with the inner side wall of the transmission cover;

8. The ducted fan use state switching apparatus according to claim 7, wherein: the locking piece is sleeved on the output shaft B and located between the planetary gear carrier and the sun gear, the locking piece is static relative to the output shaft B, and a threaded hole C matched with the threaded section B is formed in the end face, close to the clutch sleeve, of the locking piece.