Feeding device, spreading equipment and drone

Abstract

The present invention discloses a feeding device, a spreading device and an unmanned aerial vehicle, which relate to the field of material transportation; the feeding device comprises a feeding shell, two feeding pieces and a driving mechanism; the feeding shell has an inlet and two outlets; the two feeding pieces are respectively used to transport the materials inputted from the inlet to the two outlets; the driving mechanism comprises a driving assembly and two transmission shafts, and the driving assembly drives the two feeding pieces to rotate respectively through the two transmission shafts; and each transmission shaft and one of the corresponding feeding pieces are provided with a plurality of matching parts, one of the plurality of matching parts has a size different from the other sizes, and the other of the two is provided with a plurality of plug-in slots, and the plurality of matching parts are plugged in one-to-one with the plurality of plug-in slots. The feeding device can calibrate and align the matching between the two feeding pieces and the two transmission shafts through the size difference of the matching parts, so as to ensure that the positions and states of the two feeding pieces are the same and unique after installation, so as to fully improve the uniformity of the feeding operation.

Description

Technical Field

[0001] The present invention relates to the field of material transportation, and in particular to a feeding device, a spreading device and a drone. Background Art

[0002] Drones are usually equipped with spreading equipment to spread medicines, seeds and other materials to replace manual spreading, saving labor and time costs.

[0003] In the prior art, in order to ensure the spreading range, the feeding device of the spreading equipment is usually set to include two feeding parts, which are driven simultaneously by a driving assembly, and each feeding part is corresponding to a spreading device. Under the drive of the driving assembly, the two feeding parts can feed materials simultaneously, so that the two spreading devices can respectively output the materials conveyed by the corresponding feeding parts to complete simultaneous spreading. However, it is difficult to ensure that the two feeding parts of this spreading equipment are in the same position and state after matching with the driving assembly, making it difficult to ensure the uniformity of feeding during feeding operations, thereby affecting the uniformity of spreading. Summary of the invention

[0004] The object of the present invention is to provide a feeding device, a spreading device and a drone in which two feeding parts cooperate with a driving assembly in the same and unique manner, which can ensure that the positions and states of the two feeding parts are consistent after cooperation with the driving assembly, thereby improving the uniformity of feeding and ensuring the uniformity of spreading.

[0005] The embodiment of the present invention is achieved as follows:

[0006] In a first aspect, the present invention provides a feeding device, comprising:

[0007] A feeding housing having an inlet and two outlets;

[0008] Two feeding members are rotatably arranged on the feeding housing and are used to transport the materials input from the inlet to the two outlets respectively;

[0009] The driving mechanism is arranged in the feeding shell, and includes a driving component and two transmission shafts. The driving component drives the two feeding parts to rotate through the two transmission shafts respectively; and each transmission shaft and one of the corresponding feeding parts are provided with multiple matching parts, the size of one of the multiple matching parts is different from the size of other matching parts, and the other of the two is provided with multiple plug-in grooves, and the multiple matching parts are plugged into the multiple plug-in grooves one by one.

[0010] In an optional embodiment, each transmission shaft is provided with a plurality of mating parts, and the plurality of mating parts are connected to form a mating body;

[0011] Each feeding piece is provided with a plurality of plug-in slots, and the plurality of plug-in slots are collectively arranged to form a matching slot;

[0012] When the plurality of matching portions are plugged and matched with the plurality of plugging slots in a one-to-one correspondence, the matching body is plugged with the matching slots.

[0013] In an optional embodiment, each transmission shaft is provided with four matching parts, and the four matching parts respectively include three first matching parts and one second matching part, the size of the three first matching parts is smaller than the size of the second matching part, and the axis of the matching body formed by the three first matching parts and one second matching part is colinear with the axis of the transmission shaft and the feeding member;

[0014] Each feeding piece is provided with four plug-in slots, which respectively include three first plug-in slots and one second plug-in slot. The size of the three first plug-in slots is smaller than the size of the second plug-in slot. The axis of the matching slot formed by the three first plug-in slots and one second plug-in slot is colinear with the axis of the transmission shaft and the feeding piece.

[0015] In an optional embodiment, a limiting groove is formed between any two adjacent matching parts, a limiting protrusion is formed between any two adjacent plug-in grooves, and a plurality of limiting grooves are plugged into the plurality of limiting protrusions in a one-to-one correspondence.

[0016] In an optional embodiment, the limiting protrusion has a first guide bevel at a position close to the notch of the mating groove, and each mating portion is provided with a second guide bevel adapted to the first guide bevel, and the second guide bevel is used to cooperate with the first guide bevel to guide the limiting protrusion to be plugged into the corresponding limiting groove.

[0017] In an optional embodiment, the drive assembly includes a drive member and a synchronizer, the drive member is transmission-connected to the synchronizer, and the synchronizer is transmission-connected to two transmission shafts; and each transmission shaft is provided with a spline at one end away from the mating part and at one of the synchronizers, and a keyway is provided at the other end, and the spline is plugged into the keyway.

[0018] In an optional embodiment, the synchronizer includes a first gear, a second gear, and a third gear that are meshed in sequence, the second gear is transmission-connected to the output shaft of the driving member, a keyway is provided in the middle of the first gear and the third gear, each transmission shaft is provided with a spline, and the first gear and the third gear are transmission-connected to the corresponding feeding member through a transmission shaft respectively.

[0019] In an optional embodiment, each feeding member includes a feeding shaft and a blade spirally wound outside the feeding shaft, and the two feeding shafts are arranged in parallel;

[0020] The feeding housing is provided with three first marks, the three first marks are arranged at intervals, the first gear is provided with a second mark, the second gear is provided with a third mark, and the third gear is provided with a fourth mark, and the second mark, the third mark and the fourth mark are respectively used to be opposite to the three first marks, so that the first gear, the second gear and the third gear are meshed;

[0021] In addition, a fifth mark is provided on the keyway of the first gear and the third gear, and a sixth mark is provided on the spline of each transmission shaft. Each sixth mark is used to correspond to the corresponding fifth mark so that the two transmission shafts can cooperate with the first gear and the third gear in the same state.

[0022] In an optional embodiment, when the second mark, the third mark and the fourth mark are respectively used to correspond to the three first marks, each sixth mark is opposite to the corresponding fifth mark, and each feeding piece cooperates with the transmission shaft at the corresponding position, the tail end of each blade away from the transmission shaft is arranged in a horizontal direction, and the tail ends of the two blades away from the transmission shaft are located on the same horizontal plane.

[0023] In an optional embodiment, when the second identifier, the third identifier and the fourth identifier are respectively used to correspond to the three first identifiers, each sixth identifier is opposite to the corresponding fifth identifier, and each feeding shaft is matched with the corresponding transmission shaft, the direction from the slot opening to the bottom of a plug-in slot whose size is different from other sizes among the multiple plug-in slots is horizontal.

[0024] In an optional embodiment, a seventh mark is also provided on the second gear, and an eighth mark is provided on the end face of the output shaft of the driving member, and the eighth mark is used to be opposite to the seventh mark so that after the first gear, the second gear and the third gear are meshed, the second gear can be connected to the output shaft of the driving member through transmission.

[0025] In an optional embodiment, a mounting groove is provided on any one of the two blades, and a magnet is provided in the mounting groove; a Hall sensor is also provided on the feeding housing, and the Hall sensor is used to cooperate with the magnet;

[0026] or,

[0027] A mounting groove is provided at the same position of the two blades, and a magnet is arranged in the mounting groove; two Hall sensors are also arranged on the feeding shell, and the two Hall sensors are matched with the two magnets in a one-to-one correspondence.

[0028] In an optional embodiment, the tail end of the blade away from the transmission shaft and the mounting groove both extend in the radial direction of the feed shaft and are respectively located on both sides of the radial direction of the feed shaft;

[0029] When the second identifier, the third identifier and the fourth identifier are respectively used to correspond to the three first identifiers, each sixth identifier is used to correspond to the corresponding fifth identifier, the eighth identifier is used to correspond to the seventh identifier, and each feeding piece is matched with the corresponding transmission shaft, the tail end of each blade away from the transmission shaft and the mounting groove are arranged in the horizontal direction and are located in the same horizontal plane.

[0030] In a second aspect, the present invention provides a spreading device, comprising:

[0031] The feeding device of any of the preceding embodiments;

[0032] The two spreading devices are connected to the two outlets in a one-to-one correspondence and are used for spreading the materials transported by the corresponding outlets.

[0033] In a third aspect, the present invention provides a drone, comprising:

[0034] The feeding device of any one of the preceding embodiments; or, comprising the spreading equipment of the preceding embodiments.

[0035] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0036] The embodiment of the present invention provides a feeding device, which includes a feeding shell, two feeding members and a driving mechanism; the feeding shell has an inlet and two outlets; the two feeding members can be rotatably arranged on the feeding shell, respectively used to transport the materials input from the inlet to the two outlets; the driving mechanism is arranged on the feeding shell, including a driving assembly and two transmission shafts, and the driving assembly drives the two feeding members to rotate respectively through the two transmission shafts; and each transmission shaft and one of the corresponding feeding members are provided with a plurality of matching parts, one of the plurality of matching parts has a size different from the other sizes, and the other of the two is provided with a plurality of plug-in slots, and the plurality of matching parts are plugged in one by one with the plurality of plug-in slots. The feeding device sets the size of one of the plurality of matching parts to be different from the size of the other matching parts, so that when installing the two feeding members and the two transmission shafts, the installation position and orientation can be calibrated and aligned through the matching parts whose size is different from the other matching parts, so that the positions and states of the two feeding members and the two transmission shafts after installation are the same and unique, thereby fully improving the uniformity of feeding.

[0037] The embodiments of the present invention further provide a spreading device and a drone, which include the above-mentioned feeding device. Therefore, the spreading device and the drone also have the advantages of high feeding and spreading uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 A schematic diagram of the structure of a drone provided by an embodiment of the present invention;

[0040] Figure 2 Schematic diagram of a disassembled spreading device provided for an embodiment of the present invention Figure 1 ;

[0041] Figure 3 Schematic diagram of a disassembled spreading device provided for an embodiment of the present invention Figure 2 ;

[0042] Figure 4 A schematic diagram of a local structure of a spreading device provided in an embodiment of the present invention Figure 1 ;

[0043] Figure 5 A schematic diagram of a local structure of a spreading device provided in an embodiment of the present invention Figure 2 ;

[0044] Figure 6 A schematic diagram of a local structure of a spreading device provided in an embodiment of the present invention Figure 3 ;

[0045] Figure 7 A schematic diagram of a local structure of a spreading device provided in an embodiment of the present invention Figure 4 ;

[0046] Figure 8 A partial cross-sectional schematic diagram of a spreading device provided by an embodiment of the present invention;

[0047] Fig. 9 A schematic diagram of the structure of a feeding member of a spreading device provided in an embodiment of the present invention Figure 1 ;

[0048] Fig.10 A schematic diagram of the structure of a feeding member of a spreading device provided in an embodiment of the present invention Figure 2 ;

[0049] Fig.11 A schematic diagram of the structure of a transmission shaft of a spreading device provided by an embodiment of the present invention;

[0050] Fig.12 A schematic structural diagram of a first gear of a spreading device provided in an embodiment of the present invention.

[0051] Icons: 300-UAV; 301-fuselage; 303-load frame; 305-landing gear; 307-storage box; 309-feeding port; 311-spreading equipment; 313-spreading device; 315-spreading motor; 317-protective cover; 319-spreading plate; 321-feeding device; 323-feeding housing; 325-transmission chamber; 327-drive chamber; 331-feeding inner shell; 3 33-feeding member; 335-feeding port; 337-entrance; 339-driving member; 341-synchronizing member; 343-first gear; 345-second gear; 347-third gear; 351-output shaft; 353-installation chamber; 355-feeding shaft; 357-blade; 359-first cover plate; 361-second cover plate; 263-connecting hole; 365-first opening; 367-second opening mouth; 369-transmission shaft; 371-steel shaft; 373-outer shaft; 375-bearing; 377-shaft seal; 378-first copper sleeve; 379-second copper sleeve; 380-locking bolt; 381-anti-slip piece; 383-spline; 384-keyway; 385-disc; 387-shaft; 388-installation groove; 389-Hall sensor; 390-first matching part; 391-second Mating part; 392-first plug-in slot; 393-second plug-in slot; 394-mating slot; 395-mating body; 396-limiting slot; 397-limiting protrusion; 398-first guide slope; 399-second guide slope; 400-first identification; 401-second identification; 403-third identification; 405-fourth identification; 407-seventh identification; 409-eighth identification; 411-tail end. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0053] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0055] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0056] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0057] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the prior art, in order to ensure the spreading range, the feeding device of the drone is usually set to include two feeding parts, which are driven simultaneously by a driving component, and each feeding part is corresponding to a spreading device. Under the drive of the driving component, the two feeding parts can feed materials simultaneously, so that the two spreading devices can respectively output the materials conveyed by the corresponding feeding parts to complete simultaneous spreading. However, it is difficult to ensure that the two feeding parts of this spreading equipment are in the same position and state after matching with the driving component, making it difficult to ensure the uniformity of feeding during feeding operations, thereby affecting the uniformity of spreading.

[0059] In view of this, the present embodiment provides a drone, wherein a plurality of mating parts are provided between each feeding piece of the feeding device and the corresponding transmission shaft, and the size of one of the plurality of mating parts is different from the size of the other mating parts, so that the mating position of each transmission shaft and the corresponding feeding piece can be calibrated and positioned by using the mating parts of different sizes, so as to ensure that the two transmission shafts and the two feeding pieces are in the same and unique state after installation, so as to fully improve the uniformity of feeding, ensure the uniformity of sowing operation, and improve the feeding and sowing quality. The structure of the drone is described in detail below.

[0060] Figure 1 This is a schematic diagram of the structure of the drone 300 provided in this embodiment. Figure 1 This embodiment provides a drone 300, which is used to carry a spreading device 313 to spread materials. Of course, in other embodiments, the drone 300 can also carry other operating equipment to perform other agricultural operations, such as carrying a spraying device to spray pesticides, etc., which is not limited in this embodiment.

[0061] For details, please refer again Figure 1 In this embodiment, the UAV 300 specifically includes a fuselage 301 , a load frame 303 , a landing gear 305 , a storage box 307 and a spreading device 311 .

[0062] The fuselage 301 is the main structure of the UAV 300, and the load frame 303 is arranged below the fuselage 301 for installing the landing gear 305. The storage box 307 is arranged on the load frame 303, and the storage box 307 is used to hold materials, and has a feed port 309 and a discharge port (as shown in the figure), and the number of the feed ports 309 can be set to one or more, and the feed port 309 is used to input materials. The sowing device 311 is arranged below the storage box 307 and is connected to the discharge port. The discharge port can output materials to the sowing device 311, so that the sowing device 311 can perform sowing operations.

[0063] Figure 2 Schematic diagram of the disassembly of the spreading device 311 provided in this embodiment Figure 1 ; Figure 3 Schematic diagram of the disassembly of the spreading device 311 provided in this embodiment Figure 2 ; Figure 4 A schematic diagram of the local structure of the spreading device 311 provided in this embodiment Figure 1 ; Figure 5 A schematic diagram of the local structure of the spreading device 311 provided in this embodiment Figure 2 ; Figure 6 A schematic diagram of the local structure of the spreading device 311 provided in this embodiment Figure 3 . See Figures 2 to 6 In this embodiment, the feeding device 321 includes a feeding shell, two feeding members 333 and a driving mechanism.

[0064] The feeding shell is set as a split structure, including a feeding shell 323 and two feeding inner shells 331. The feeding shell 323 is a flat cylindrical structure, and is used to be fixedly connected to the fuselage 301 to ensure the stability of the feeding operation. The peripheral side of the feeding shell 323 is provided with an inlet 335, and the inlet 335 is opposite to and communicated with the outlet of the storage box 307 to receive the material output by the storage box 307. The feeding shell is also provided with two installation chambers 353 connected with the inlet 335, and the two feeding inner shells 331 are respectively arranged in the two installation chambers 353, and each feeding inner shell 331 has an inlet 337 and an outlet (not shown in the figure), the inlet 337 is opposite to the inlet 335, and is used to receive the material input by the inlet 335, and the outlet is used to output the material.

[0065] Figure 7 A schematic diagram of the local structure of the spreading device 311 provided in this embodiment Figure 4 . See Figures 2 to 7 In this embodiment, two feeding members 333 are arranged in one-to-one correspondence with two feeding inner shells 331, and each feeding member 333 can be rotatably arranged in the corresponding feeding inner shell 331, and each feeding member 333 is at least partially opposite to the corresponding inlet 337, and can transport the material input from the inlet 337 to the corresponding outlet during the rotation relative to the feeding inner shell 331. At the same time, each feeding member 333 is an auger structure, specifically including a feeding shaft 355 and a blade 357 spirally wound outside the feeding shaft 355, and the two feeding shafts 355 are arranged in parallel to ensure the uniformity of the feeding operation.

[0066] Correspondingly, the number of sowing devices 313 is also two, and each sowing device 313 is arranged at the end of the corresponding feeding inner shell 331, and is connected to the outlet of the corresponding feeding inner shell 331 to sow the materials output from the corresponding outlet. The structures of the two sowing devices 313 are exactly the same to ensure the uniformity and synchronization of sowing. Specifically, each sowing device 313 includes a sowing motor 315, a sowing disc 319 and a protective cover 317. The protective cover 317 is connected and connected to the outlet of the feeding assembly at the corresponding position to receive the materials output from the corresponding outlet. The sowing motor 315 is arranged outside the protective cover 317, and the sowing disc 319 is arranged inside the protective cover 317. The sowing motor 315 can drive the sowing disc 319 to rotate to broadcast the materials output from the outlet, thereby completing the sowing operation.

[0067] The driving mechanism specifically includes a driving assembly and two transmission shafts 369. The driving assembly is respectively connected to the two feeding shafts 355 through the two transmission shafts 369 to drive the two feeding shafts 355 to rotate at the same time, so that each blade 357 can convey the material input from the corresponding inlet 337 to the corresponding outlet, so that the two spreading devices 313 can perform spreading operations at the same time.

[0068] at the same time, Figure 8 A partial cross-sectional schematic diagram of the spreading device 311 provided in this embodiment; Fig. 9 A schematic diagram of the structure of the feeding member 333 of the spreading device 311 provided in this embodiment; Fig.10 The structure diagram of the feeding member of the spreading device provided in this embodiment is as follows: Figure 2 ; Fig.11 This is a schematic diagram of the structure of the transmission shaft 369 of the spreading device 311 provided in this embodiment. Figures 8 to 11 In this embodiment, in order to facilitate the cooperation between the transmission shaft 369 and the corresponding feeding shaft 355, the two are connected by plug-in cooperation, and a plurality of matching parts are provided on the transmission shaft 369, and a plurality of plug-in slots are provided on the feeding shaft 355, so that the plurality of matching parts can be plug-in-coordinated with the plurality of plug-in slots one by one. Moreover, the size of one matching part among the plurality of matching parts is different from the size of the other matching parts, and the size of one corresponding plug-in slot among the plurality of plug-in slots is different from the size of the other plug-in slots. Of course, in other embodiments, the plug-in slot can also be provided on the feeding shaft 355, and the matching part can also be provided on the transmission shaft 369, which will not be described in detail in the steps of this embodiment.

[0069] By setting in this way, the matching part with a size different from other matching parts can only match with the corresponding matching groove 394, so that when the feed shaft 355 matches with the corresponding transmission shaft 369, the matching state and position of the two are unique and determined. Therefore, when two feed shafts 355 and two transmission shafts 369 are matched, the matching parts of the two transmission shafts 369 with differences can be aligned in the same direction or position for positioning, for example, both are positioned upward, and then the feed shaft 355 is matched with the corresponding transmission shaft 369, which can ensure that the positions and states of the two feed shafts 355 are the same and unique after installation, so that the uniformity of feeding can be fully guaranteed to improve the uniformity of sowing. At the same time, since the matching mode of each feed shaft 355 and the corresponding transmission shaft 369 is unique, even if other types of feed shafts 355 are replaced, it will not affect the calibration of the position of each feed shaft 355, so that the uniformity of feeding and sowing operations can still be guaranteed after multiple disassembly and installation.

[0070] Please refer again Figures 8 to 11In this embodiment, each transmission shaft 369 includes a disc portion 385, and a plurality of matching portions are arranged on one side of the disc portion 385, for example, four matching portions are arranged, and they are three first matching portions 390 and one second matching portion 391, the three first matching portions 390 and one second matching portion 391 are all in the shape of long strips, and the size of the second matching portion 391 is larger than the size of the first matching portion 390, the three first matching portions 390 and one second matching portion 391 are connected to form a matching body 395 with a roughly "cross" columnar structure, and the other side of the disc portion 385 is provided with a shaft portion 387 for transmission matching with the drive assembly. Of course, in other embodiments, the number of matching portions can be increased or decreased according to demand, and at the same time, the size of the second matching portion 391 can also be set to be smaller than the three first matching portions 390, as long as the first matching portion 390 and the second matching portion 391 can be distinguished, and this embodiment does not limit it.

[0071] Correspondingly, each feeding member 333 is provided with four corresponding plug-in slots, namely, three first plug-in slots 392 and one second plug-in slot 393. The three first plug-in slots 392 are adapted to the size of the three first matching parts 390, and the second plug-in slot 393 is adapted to the size of the second matching part 391, that is, the size of the second plug-in slot 393 is larger than the size of the first plug-in slot 392. At the same time, the three first plug-in slots 392 and one second plug-in slot 393 are jointly arranged to form a "cross"-shaped matching slot 394. When the three first matching parts 390 are plugged and matched with the three first plug-in slots 392 one by one, and the second matching part 391 is plugged with the second plug-in slot 393, the matching body 395 is also plugged with the matching slot 394, so as to fully ensure the stability and reliability of the transmission shaft 369 and the feeding shaft 355 after the two are matched.

[0072] By setting three first matching parts 390, one second matching part 391, three first plug-in slots 392 and one second plug-in slot 393, when the feed shaft 355 matches with the corresponding transmission shaft 369, the consistency and uniqueness of the positions and states of the two feed shafts 355 can be ensured while ensuring the consistency of the positions of the second matching parts 391 of the two transmission shafts 369, thereby fully ensuring the uniformity of the feeding operation. At the same time, the matching of multiple matching parts and multiple plug-in slots, the matching of the matching body 395 as a whole and the matching slot 394 as a whole, can also ensure the stability of the matching of the feed shaft 355 and the transmission shaft 369, improve the transmission quality, and ensure the feeding and sowing quality. Of course, in other embodiments, the number of plug-in slots can also be adjusted with the change of the number of matching parts, and the second plug-in slot 393 can also be set to be smaller than the first plug-in slot 392, which will not be repeated in this embodiment.

[0073] As an optional solution, in this embodiment, the axis of the matching body 395 formed by three first matching parts 390 and one second matching part 391, the axis of the matching groove 394 formed by three second plug-in grooves 393 and one second plug-in groove 393, the axis of the feed shaft 355 and the axis of the transmission shaft 369 are arranged in a colinear manner. By such an arrangement, the stability of the drive assembly driving the feed shaft 355 to move can be ensured, so as to further ensure the feeding and spreading quality.

[0074] Further optionally, in this embodiment, a limiting groove 396 is formed between any two adjacent first matching parts 390 and between the first matching part 390 and the second matching part 391. Correspondingly, a limiting protrusion 397 is formed between any two adjacent plug-in grooves, and a plurality of limiting grooves 396 and a plurality of limiting protrusions 397 are plugged in one by one, so as to further improve the stability of the feeding shaft 355 after being matched with the rotating shaft, and improve the working efficiency.

[0075] Furthermore, the limiting protrusion 397 has a first guiding inclined surface 398 at a position close to the notch of the matching groove 394, and each matching portion is provided with a second guiding inclined surface 399 adapted to the first guiding inclined surface 398. The first guiding inclined surface 398 and the second guiding inclined surface 399 are both planes or arc surfaces inclined relative to the axis, and the second guiding inclined surface 399 is used to cooperate with the first guiding inclined surface 398 to guide the limiting protrusion 397 to be plugged into the corresponding limiting groove 396, so as to ensure the smoothness of the matching process between the feeding shaft 355 and the transmission shaft 369.

[0076] Please refer again Figure 8 In this embodiment, the feed shaft 355 of each feed piece 333 is a sleeve shaft structure, and the interior thereof is a steel shaft 371, which can ensure strength and rigidity. The outer coaxial sleeve of the steel shaft 371 is provided with an outer sleeve shaft 373, and the two ends of the outer sleeve shaft 373 are rotatably matched with the feed inner shell 331. In addition, the outer sleeve shaft 373 is made of high-strength wear-resistant plastic, and the blades 357 are made of the same material as the outer sleeve shaft 373 and are arranged on the circumferential outer side of the outer sleeve shaft 373. The two can be integrally formed, and the setting of the wear-resistant plastic material can ensure wear resistance, reduce the weight of the feed piece 333, and ensure transmission and feeding efficiency. At the same time, the plug-in slot is specifically opened at the end of the outer sleeve shaft 373 to be plugged and matched with the matching part on the transmission shaft 369 to ensure transmission quality and stability.

[0077] It should be noted that a first copper sleeve 378 is also sleeved on the outer side of the end of the outer sleeve shaft 373, and the first copper sleeve 378 is located between the outer sleeve shaft 373 and the feeding inner shell 331 to improve the wear resistance and ensure the service life of the feeding piece 333, so as to ensure the feeding quality and efficiency.

[0078] It should also be noted that each transmission shaft 369 can be rotatably disposed in the feed housing 323, and the outer side of the shaft portion 387 of the transmission shaft 369 is sleeved with a second copper sleeve 379, and the second copper sleeve 379 is located between the shaft portion 387 of the transmission shaft 369 and the feed housing 323 to improve the wear resistance. At the same time, the outer side of the shaft portion 387 of the transmission shaft 369 is also sleeved with a bearing 375 and a shaft seal 377 to further ensure the reliability and stability of the cooperation between the transmission shaft 369 and the outer sleeve shaft 373 of the feed shaft 355.

[0079] Fig.12 This is a schematic diagram of the structure of the first gear 343 of the spreading device 311 provided in this embodiment. Figure 2 , Figure 5 , Figure 8 , Figures 10 to 12 In this embodiment, a transmission chamber 325 is provided at the end of the feed housing 323. The transmission chamber 325 is a semi-enclosed chamber having a first opening 365. The first opening 365 is covered with a first cover plate 359. A driving chamber 327 is also provided on the peripheral side of the feed housing 323. The driving chamber 327 is connected to the transmission chamber 325 through a connecting hole 263. The driving chamber 327 is a semi-enclosed chamber having a second opening 367. The second opening 367 is covered with a second cover plate 361. The transmission chamber 325 and the driving chamber 327 can be used to install a driving mechanism to ensure the safety and reliability of the driving mechanism.

[0080] In detail, the driving assembly specifically includes a driving member 339 and a synchronous member 341. Among them, the driving member 339 is a reduction motor, which is installed in the driving chamber 327. The synchronous member 341 includes a first gear 343, a second gear 345 and a third gear 347 that are meshed in sequence, and the first gear 343, the second gear 345 and the third gear 347 are arranged in sequence in the transmission chamber 325. The output shaft 351 of the driving member 339 is connected to the second gear 345 after passing through the connecting hole 263, and the first gear 343 and the third gear 347 are connected to the two feeding shafts 355 through two transmission shafts 369, and the first gear 343, the second gear 345 and the third gear 347 are gears of the same size. Through such an arrangement, the driving member 339 can drive the second gear 345 to rotate synchronously when it is rotated forward or reversely, so that the first gear 343 and the third gear 347 can be driven to rotate synchronously through the second gear 345, and then the two feeding shafts 355 can be driven to rotate synchronously through the two transmission shafts 369. Since the two feeding shafts 355 are installed in the same position and state and are driven by the same first gear 343 and third gear 347, the uniformity and synchronization of the feeding of the two feeding members 333 can be ensured, and the synchronization and uniformity of the sowing operations of the two sowing devices can also be ensured.

[0081] In more detail, in this embodiment, a spline 383 is also provided at one end of the shaft portion 387 of each transmission shaft 369 away from the mating portion. The spline 383 is arranged around the circumference of the shaft portion 387 and is composed of a plurality of thin strip groove structures. Correspondingly, a keyway 384 that matches the spline 383 is provided at the middle position of the first gear 343 and the third gear 347. The spline 383 is plugged into the keyway 384 to ensure the stability and reliability of the mating between the transmission shaft 369 and the synchronizer 341, and also facilitates installation, disassembly and maintenance operations. Of course, in other embodiments, the spline 383 structure can also be provided on the first gear 343 and the third gear 347, and the keyway 384 is correspondingly provided on the outer side of the shaft portion 387 of the transmission shaft 369. This embodiment will not be repeated.

[0082] As an alternative, please refer again to Figure 8 In this embodiment, the feeding device 321 further includes two locking bolts 380, one locking bolt 380 is disposed at the end of a transmission shaft 369 and the first gear 343, and is threadedly matched with the shaft portion 387 of the transmission shaft 369 to lock the transmission shaft 369 and the first gear 343. Another locking bolt 380 is disposed at the end of another transmission shaft 369 and the third gear 347, and is threadedly matched with the shaft portion 387 of the transmission shaft 369 to lock the transmission shaft 369 and the third gear 347. By setting the locking bolts 380, the axis movement between the transmission shaft 369 and the first gear 343 or the third gear 347 can be prevented, and the positions and states of the two transmission shafts 369 can be ensured to be the same, so as to facilitate the positions and states of the two feeding shafts 355 to be the same, so as to ensure the uniformity of feeding and sowing operations.

[0083] It should be noted that an anti-slip component 381 is provided between the head of the locking bolt 380 and the end face of the first gear 343, and between the head of the locking bolt 380 and the end face of the third gear 347. The anti-slip component 381 is a circular metal component, and its outer diameter is larger than the outer diameter of the keyway 384. It is used to prevent the transmission shaft 369 from being detached from the first gear 343 or the third gear 347, thereby ensuring the stability and reliability of the transmission, so as to ensure the quality of feeding and spreading operations.

[0084] Optionally, please refer again to Figure 4 and Figure 5In order to further ensure the uniformity of feeding and spreading operations, in this embodiment, two or three first marks 400 are provided on the feeding shell 323 of the feeding shell, and the three first marks 400 are arranged at intervals. A second mark 401 is provided on the first gear 343, a third mark 403 is provided on the second gear 345, and a fourth mark 405 is provided on the third gear 347. The first mark 400, the second mark 401, the third mark 403 and the fourth mark 405 are all triangular marks or straight line marks, or marks of other colors and shapes. In addition, the second mark 401, the third mark 403 and the fourth mark 405 are respectively used to correspond to the three first marks 400, so that the first gear 343, the second gear 345 and the third gear 347 can mesh, thereby ensuring that the synchronizer 341 can be stably installed and transmitted.

[0085] At the same time, the key slots 384 of the first gear 343 and the third gear 347 are also provided with a fifth mark (not shown in the figure), which can be a triangle mark, a line mark, or a mark of other colors and shapes. In addition, the spline 383 of each transmission shaft 369 is also provided with a sixth mark (not shown in the figure), and each sixth mark is used to correspond to the corresponding fifth mark, so that the two transmission shafts are matched with the first gear 343 and the third gear 347 in the same state.

[0086] By such arrangement, after the first gear 343, the second gear 345 and the third gear 347 are meshed, the installation position and state of each transmission shaft 369 are consistent with the first gear 343 and the third gear 347. That is, the synchronizer 341 and the transmission shaft 369 are both positioned. After ensuring that the positions and states of the two transmission shafts 369 are the same, the feed shaft 355 is installed, and the unique connection feature can be utilized to fully ensure that the two feed shafts 355 are in the same installation state and position, thereby effectively ensuring the uniformity of feeding, and then improving the quality of feeding and sowing.

[0087] Of course, in other embodiments, the positioning marks of the transmission shaft 369 and the corresponding positions of the first gear 343 and the third gear 347 can also be set at other positions of the transmission shaft 369, and the marks on the first gear 343 and the third gear 347 can also be set at other positions, as long as it can ensure that the two can be positioned and marked, and this embodiment is not limited to this.

[0088] As an optional solution, in this embodiment, when the second mark 401, the third mark 403 and the fourth mark 405 are respectively opposite to the three first marks 400, and each sixth mark is used to be opposite to the corresponding fifth mark, and each feeding member 333 cooperates with the transmission shaft 369 at the corresponding position, the tail end 411 of each blade 357 away from the transmission shaft 369 is arranged in the horizontal direction, and the tail ends 411 of the two blades 357 away from the transmission shaft 369 are located on the same horizontal plane. Through such an arrangement, the two feeding members 333 are in the same installation state and position, thereby effectively ensuring the uniformity of feeding, and then improving the quality of feeding and sowing.

[0089] Further optionally, in this embodiment, when the second mark 401, the third mark 403 and the fourth mark 405 are respectively opposite to the three first marks 400, and each sixth mark is used to be opposite to the corresponding fifth mark, and each feeding member 333 is matched with the transmission shaft 369 at the corresponding position, the direction from the slot of a slot with a size different from other sizes in the multiple slots to the bottom of the slot is horizontal. That is, in this embodiment, the slots of the two second slots 393 are all oriented in the horizontal direction, and the direction from the slot of each second slot 393 to the bottom of the slot is horizontal, so as to fully ensure that the two feeding members 333 can be in the same installation state and position after matching with the two transmission shafts 369, thereby further ensuring the uniformity of feeding, and then further improving the quality of feeding and sowing.

[0090] Please refer again Figure 4 and Figure 5 In this embodiment, a seventh mark 407 is also provided on the second gear 345, and an eighth mark 409 is provided on the end face of the output shaft of the driving member 339. The eighth mark 409 is used to be opposite to the seventh mark 407, so that after the first gear 343, the second gear 345 and the third gear 347 are meshed, the second gear 345 can be connected to the output shaft of the driving member 339 by transmission. The seventh mark 407 and the eighth mark 409 can be triangular marks, or line marks, or marks of other colors and shapes. By setting in this way, the second gear 345 can not only stably cooperate with the driving member 339, but also stably cooperate with the first gear 343 and the third gear 347 on both sides, and after cooperation, it can ensure that the two transmission shafts 369 can be in the same state and position, and then the two feeding shafts 355 can be in the same installation state and position after cooperation with the two transmission shafts 369, so as to fully ensure the uniformity and synchronization of feeding and sowing operations.

[0091] Furthermore, in order to further improve the uniformity of the sowing operation, in this embodiment, the lengths of the two feeding shafts 355 of the two feeding members 333 are set to be exactly the same, the lengths, pitches and heights of the two blades 357 of the two feeding members 333 are the same, and the relative lengths of the two blades 357 to the inlet 337 are the same, and the two blades 357 are set in opposite directions. On the one hand, setting the two feeding members 333 to have the same structure can maximize the consistency of the movement state of the two feeding members 333 driven by the two transmission shafts 369, so that the two feeding members 333 can synchronously and evenly perform the feeding operation, thereby ensuring the synchronization and uniformity of the sowing operation to improve the sowing quality; on the other hand, setting the rotation directions of the two blades 357 to be opposite, so that the sowing range formed by the two parallel feeding members 333 sowing together is wider and more uniform, thereby further improving the sowing quality.

[0092] Please refer again Figure 6 , Fig. 9 as well as Fig.10 In this embodiment, a mounting groove 388 for mounting a magnet can be provided on the blade 357 of any one of the two feeding members 333, and a magnet can be built in. At the same time, a Hall sensor 389 that can cooperate with the magnet is provided on the feeding housing. Through the cooperation between the Hall sensor 389 and the magnet, it is possible to determine when the reduction motor stops by the detection result of the Hall sensor 389 during start or stop, and it is also possible to control the position state of the feeding member 333 after the reduction motor stops driving. In addition, since the consistency of the states of the two feeding shafts 355 can be fully guaranteed through the cooperation of various identifiers, the present embodiment provides a magnet and a Hall sensor 389 to simultaneously detect and control the position states of the two feeding shafts 355, thereby fully ensuring the operating efficiency and quality.

[0093] Of course, in this embodiment, a mounting groove 388 may be provided at the same position of the two blades 357, and a magnet may be provided in each mounting groove 388. At the same time, two Hall sensors 389 are provided on the feeding housing, and the two Hall sensors 389 are matched with the two magnets in a one-to-one correspondence, which will not be described in detail in this embodiment.

[0094] As an alternative, please refer again to Fig. 9In this embodiment, the mounting groove 388 is specifically located on the end surface of the blade 357, and extends along the radial direction of the feed shaft 355 in the same manner as the tail end 411 of the blade 357, and is located on both sides of the radial direction of the feed shaft 355 with the tail end 411 of the blade 357. At the same time, in order to ensure that the mounting groove 388 on each blade 357 is positioned consistently, the radial path along which the mounting groove 388 extends can be specifically selected as a path extending from the circumference of the blade 357 toward the direction close to the second plug-in groove 393, so that the mounting groove 388 and the second plug-in groove 393 are approximately located on the same radial extension line of the end surface of the blade 357. Of course, in other embodiments, it is sufficient to ensure that the mounting grooves 388 of the two blades 357 are positioned consistently, and this embodiment does not limit this.

[0095] Further optionally, in this embodiment, when the second identifier 401, the third identifier 403 and the fourth identifier 405 are respectively opposite to the three first identifiers 400, and each sixth identifier is used to be opposite to the corresponding fifth identifier, the eighth identifier 409 is opposite to the seventh identifier 407, and each feeding piece 333 is matched with the transmission shaft 369 at the corresponding position, the tail end 411 of each blade 357 away from the transmission shaft 369 and the mounting groove 388 are arranged in the horizontal direction and are all located in the same horizontal plane. On the one hand, such an arrangement can further ensure that the two feeding members 333 can be in the same installation state and position after cooperating with the two transmission shafts 369, thereby ensuring the uniformity of the feeding and sowing operations; on the other hand, such an arrangement can also ensure that the reduction motor can accurately control the two feeding members 333 to be in the same state and position when stopping or starting according to the detection results of the Hall sensor 389, and even when the positions of the two feeding members 333 are not synchronized, the positions of the two feeding members 333 can be adjusted through the cooperation of the two Hall sensors 389 and the reduction motor to make them in the same state and position, thereby fully ensuring the uniformity, synchronization and reliability of the feeding and sowing operations, and improving the feeding and sowing quality.

[0096] The following is a detailed description of the installation process, working principle and beneficial effects of the drone 300 provided by the embodiment of the present invention:

[0097] When the drone 300 is installed, the load frame 303 can be first installed on the fuselage 301, and the sowing equipment 311 can be installed. Then, the sowing equipment 311 can be installed on the fuselage 301 and connected to the storage box 307. Then, the storage box 307 and the landing gear 305 can be installed on the load frame 303 respectively. When installing the sowing equipment 311, the driving member 339 can be first installed in the driving chamber 327, and the two feeding members 333 can be installed in the two feeding inner shells 331 respectively, and the feeding inner shells 331 can be installed in the installation chamber 353 of the feeding outer shell 323, so that the two feeding shafts 355 are arranged in parallel; then, the first gear 343, the second gear 345 and the third gear 347 are installed in the transmission chamber 325, so that the three first marks 400 are respectively connected to the second marks 401, the third identifier 403 and the fourth identifier 405 are opposite to each other, and the seventh identifier 407 is opposite to the eighth identifier 409, so that the second gear 345 is connected to the output shaft 351 of the driving member 339, and the splines 383 of the two transmission shafts 369 are respectively plugged into the keyways 384 of the first gear 343 and the third gear 347, and locked by a locking bolt 380; then, the plug-in grooves of the two feeding shafts 355 are respectively plugged into and matched with the matching parts of the two transmission shafts 369.

[0098] When performing sowing operations, the driving member 339 and the sowing motor 315 can be started, and the driving member 339 drives the second gear 345 to rotate, thereby driving the first gear 343 and the third gear 347 to rotate at the same time, and then drives the two parallel feeding shafts 355 to rotate at the same time through the two transmission shafts 369, so as to output the materials input from the inlet 337 from the outlet to the corresponding sowing plate 319 respectively. The sowing plate 319 rotates under the drive of the sowing motor 315 to sow the materials.

[0099] In the above process, on the one hand, the feeding device 321 can calibrate and align the position and orientation of the feeding shaft 355 and the transmission shaft 369 for installation through the setting of the second matching part 391 and the second plug-in slot 393, so that the positions and states of the two feeding parts 333 and the two transmission shafts 369 after installation are the same and unique, thereby fully improving the uniformity of feeding and ensuring the feeding shaft 355 after matching with the two transmission shafts 369; on the other hand, the three first identifiers 400 are respectively opposite to the second identifier 401, the third identifier 403 and the fourth identifier 405, and the seventh identifier 407 is opposite to the eighth identifier 409, and the positions of the first gear 343, the second gear 345 and the third gear 347 can be positioned to ensure that the initial positions of the two transmission shafts 369 are unique and the same, so as to further ensure that the positions and states of the two feeding shafts 355 after installation are the same and unique, and further improve the uniformity and reliability of feeding and sowing operations.

[0100] In summary, the embodiments of the present invention provide a unique feeding device 321, a sowing device 311 and a drone 300, in which two feeding parts 333 cooperate with the driving assembly in the same manner, which can ensure that the positions and states of the two feeding parts 333 are consistent after cooperating with the driving assembly, thereby improving the uniformity of feeding and ensuring the uniformity of sowing.

[0101] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A feeding device, characterized in that: include: A feeding shell has an inlet and two outlets, and the feeding shell is arranged as a split structure; Two feeding members are rotatably disposed on the feeding housing and are respectively used to transport the materials input from the inlet to the two outlets; A driving mechanism is arranged on the feeding housing, comprising a driving assembly and two transmission shafts, wherein the driving assembly drives the two feeding members to rotate respectively through the two transmission shafts; and each of the transmission shafts and one of the corresponding feeding members are provided with a plurality of matching parts, wherein the size of one of the matching parts is different from the sizes of the other parts, and the other of the matching parts is provided with a plurality of plug-in slots, wherein the plurality of matching parts are plugged into the plurality of plug-in slots in a one-to-one correspondence; The driving assembly comprises a driving member and a synchronizing member, wherein the driving member is in driving connection with the synchronizing member, and the synchronizing member is in driving connection with the two transmission shafts; and a spline is provided at one end of each transmission shaft away from the mating portion and one of the synchronizing members, and a keyway is provided at the other end of the transmission shaft, and the spline is plugged into the keyway; The feeding device sets the size of one of the multiple matching parts to be different from the sizes of the other matching parts, so that when installing the two feeding parts and the two transmission shafts, the size can be distinguished from the other matching parts, and the installation position and orientation can be calibrated and aligned, so that the positions and states of the two feeding parts and the two transmission shafts after installation are the same and unique, thereby fully improving the uniformity of feeding.

2. The feeding device according to claim 1, characterized in that: Each of the transmission shafts is provided with a plurality of the matching parts, and the plurality of matching parts are connected to form a matching body; Each of the feeding pieces is correspondingly provided with a plurality of the plug-in slots, and the plurality of the plug-in slots are collectively arranged to form a matching slot; When the plurality of matching portions are plugged and matched with the plurality of plugging slots in a one-to-one correspondence, the matching body is plugged into the matching slots.

3. The feeding device according to claim 2, characterized in that: Each of the transmission shafts is provided with four matching parts, and the four matching parts respectively include three first matching parts and one second matching part, the size of the three first matching parts is smaller than or larger than the size of the second matching part, and the axis of the matching body formed by the three first matching parts and one second matching part is colinear with the axis of the transmission shaft and the feeding member; Each of the feeding pieces is provided with four said plug-in slots, and the four said plug-in slots respectively include three first plug-in slots and one second plug-in slot, the size of the three first plug-in slots is smaller than or larger than the size of the second plug-in slot, and the axis of the mating slot formed by the three first plug-in slots and one second plug-in slot is colinear with the axis of the transmission shaft and the feeding piece.

4. The feeding device according to claim 2, characterized in that: A limiting groove is formed between any two adjacent matching parts, a limiting protrusion is formed between any two adjacent plug-in grooves, and a plurality of the limiting grooves are plugged into a plurality of the limiting protrusions in a one-to-one correspondence.

5. The feeding device according to claim 4, characterized in that: The limiting protrusion has a first guiding bevel at a position close to the notch of the matching groove, and each matching portion is provided with a second guiding bevel adapted to the first guiding bevel, and the second guiding bevel is used to cooperate with the first guiding bevel to guide the limiting protrusion to be plugged into the corresponding limiting groove.

6. The feeding device according to claim 1, characterized in that: The synchronizer comprises a first gear, a second gear and a third gear meshed in sequence, the second gear is transmission-connected to the output shaft of the driving member, a keyway is provided in the middle of the first gear and the third gear, each transmission shaft is provided with a spline, and the first gear and the third gear are transmission-connected to the corresponding feeding member through a transmission shaft respectively.

7. The feeding device according to claim 6, characterized in that: Each of the feeding members comprises a feeding shaft and blades spirally wound outside the feeding shaft, and the two feeding shafts are arranged in parallel; The feeding housing is provided with three first marks, the three first marks are arranged at intervals, the first gear is provided with a second mark, the second gear is provided with a third mark, and the third gear is provided with a fourth mark, and the second mark, the third mark and the fourth mark are respectively used to be opposite to the three first marks, so that the first gear, the second gear and the third gear are meshed; A fifth mark is also provided on the keyway of the first gear and the third gear, and a sixth mark is also provided on the spline of each transmission shaft. Each sixth mark is used to correspond to the corresponding fifth mark so that the two transmission shafts cooperate with the first gear and the third gear in the same state.

8. The feeding device according to claim 7, characterized in that: When the second mark, the third mark and the fourth mark are respectively used to correspond to the three first marks, each sixth mark is opposite to the corresponding fifth mark, and each feeding member is matched with the corresponding transmission shaft, the tail end of each blade away from the transmission shaft is arranged in a horizontal direction, and the tail ends of the two blades away from the transmission shaft are located on the same horizontal plane.

9. The feeding device according to claim 8, characterized in that: When the second identifier, the third identifier and the fourth identifier are respectively used to correspond to the three first identifiers, each sixth identifier is opposite to the corresponding fifth identifier, and each feed shaft is matched with the corresponding transmission shaft, the direction from the slot opening to the bottom of one of the multiple plug-in slots whose size is different from other sizes is horizontal.

10. The feeding device according to claim 7, characterized in that: A seventh mark is also provided on the second gear, and an eighth mark is provided on the end face of the output shaft of the driving member. The eighth mark is used to be opposite to the seventh mark, so that after the first gear, the second gear and the third gear are meshed, the second gear can be connected to the output shaft of the driving member through transmission.

11. The feeding device according to claim 7, characterized in that: A mounting groove is provided on any one of the two blades, and a magnet is provided in the mounting groove; a Hall sensor is also provided on the feeding housing, and the Hall sensor is used to cooperate with the magnet; or, A mounting groove is provided at the same position of the two blades, and a magnet is arranged in the mounting groove; two Hall sensors are also arranged on the feeding shell, and the two Hall sensors are matched with the two magnets in a one-to-one correspondence.

12. The feeding device according to claim 11, characterized in that: The tail end of the blade away from the transmission shaft and the mounting groove both extend along the radial direction of the feeding shaft and are respectively located on both sides of the radial direction of the feeding shaft; When the second mark, the third mark and the fourth mark are respectively used to correspond to the three first marks, each sixth mark is opposite to the corresponding fifth mark, and each feeding member is matched with the corresponding transmission shaft, the tail end of each blade away from the transmission shaft and the mounting groove are arranged in the horizontal direction and are located in the same horizontal plane.

13. A spreading device, characterized in that: include: The feeding device according to any one of claims 1 to 12; Two spreading devices are connected to the two outlets in a one-to-one correspondence, and are used for spreading the materials transported by the corresponding outlets.

14. A drone, characterized in that: include: The feeding device according to any one of claims 1 to 12; Alternatively, it comprises the spreading equipment as claimed in claim 13.

Images