Sowing system of unmanned equipment and unmanned aerial vehicle

Abstract

The invention provides a sowing system of unmanned equipment and an unmanned aerial vehicle, and relates to the technical field of unmanned equipment. The sowing system comprises an auger, an outer shell, an induction device and a motor. The auger comprises a shaft rod and a spiral blade; the spiral blade is spirally wound on the shaft rod, an opening is formed in the tail end of the spiral blade, and the opening is formed between the tail end of the first blade section and the second blade section. One end of the shaft rod is in transmission connection with the motor. The sensing device and the motor are electrically connected with a controller of the unmanned equipment; the sensing device is configured to send a sensing signal to the controller after the controller receives a feeding stopping instruction, so that the controller controls the motor to stop according to the sensing signal, and therefore the shaft rod stops rotating around the axis of the shaft rod and the opening of the shaft rod faces upwards. Therefore, when the auger is in a stop state, the opening of the tail end of the spiral blade is in an upward state, and materials at the tail end of the spiral blade can be effectively prevented from falling under the action of self gravity to cause material leakage.

Description

[0001] This application is a divisional application of the invention patent application filed on December 13, 2021, with the invention name being "Auger, spreading system and unmanned equipment" and application number being 202111522079.0. Technical Field

[0002] The present invention relates to the technical field of unmanned equipment, and in particular to a spreading system and a drone of unmanned equipment. Background Art

[0003] Unmanned equipment such as drones, unmanned vehicles, and unmanned ships are gradually being widely used in agriculture, industry and other related fields. The spreading system loaded on unmanned equipment can be used to spread materials such as pesticides, seeds, and powders to complete the corresponding spreading operations.

[0004] In the related art, after the spreading system stops the spreading operation, materials may leak out of the spreading system. Therefore, the material leakage problem of the spreading system has become a technical problem that needs to be solved urgently in the art. Summary of the invention

[0005] The object of the present invention is to provide a spreading system and a drone for unmanned equipment, which can effectively improve the problem of material leakage in the spreading system.

[0006] The embodiment of the present invention is achieved as follows:

[0007] In a first aspect, an embodiment of the present invention provides a spreading system for unmanned equipment, the spreading system comprising an auger, an outer shell, a sensing device and a motor; a feeding cavity is provided in the outer shell;

[0008] The auger comprises: a shaft and a spiral blade; the spiral blade is spirally wound on the shaft, and an opening is provided at the tail end of the spiral blade; wherein the spiral blade comprises a first blade segment located at the tail end and a second blade segment adjacent to and connected to the first blade segment, and the opening is formed between the tail end of the first blade segment and the second blade segment;

[0009] One end of the shaft is transmission-connected to the motor; the sensing device is disposed on the outer shell, and the sensing device and the motor are both electrically connected to the controller of the unmanned equipment; the sensing device is configured such that, after the controller receives a stop feeding instruction, the sensing device sends a sensing signal to the controller, so that the controller controls the motor to stop according to the sensing signal, thereby causing the shaft to stop rotating around its own axis and the opening to face upward.

[0010] Further, an end wall is provided at one end of the first blade segment away from the second blade segment, and the opening is formed between the end wall and the second blade segment.

[0011] Furthermore, the auger also includes a sensing element, and the sensing device is configured to send a sensing signal to the controller when the controller senses the sensing element after receiving a stop feeding instruction.

[0012] Furthermore, the auger also includes a mounting member, which is arranged at one end of the shaft rod, and the sensing member is arranged on the mounting member; one end of the shaft rod provided with the mounting member is transmission-connected to the motor.

[0013] Furthermore, the auger also includes a sensing member. When the sensing member is sensed by the sensing device of the spreading system for the first time, the shaft stops rotating around its own axis, and the end wall and the sensing member are in the same horizontal plane with the end wall facing upward.

[0014] Furthermore, when the sensing element is sensed by the sensing device of the spreading system for the first time, the shaft stops rotating around its own axis, and the end wall and the sensing element are located in the same horizontal plane passing through the axis of the shaft.

[0015] Further, an end wall is provided at one end of the first blade segment away from the second blade segment, a strip-shaped mounting portion is convexly provided on one side surface of the mounting member, a mounting hole is provided along the length direction of the mounting portion, and the sensing member is installed in the mounting hole;

[0016] The shaft rod is configured so that, after the unmanned equipment receives a stop feeding instruction, when the sensing element is sensed by the sensing device of the spreading system for the first time, the shaft rod stops rotating around its own axis and makes the end wall, the mounting portion and the sensing element in the same horizontal plane.

[0017] Furthermore, the spreading system also includes a spreading device, and the other end of the shaft is connected to the spreading device.

[0018] Furthermore, the cavity wall of the feeding cavity includes a first side wall and a second side wall which are arranged opposite to each other;

[0019] One end of the shaft rod away from the motor extends out of the first side wall and is connected to the spreading device.

[0020] Furthermore, the cavity wall of the feeding cavity includes a first side wall and a second side wall which are arranged opposite to each other;

[0021] A groove is provided on the outer contour of the spiral blade, and a channel for material to pass through is formed between the groove and the outer shell, so that the material is transported to the tail end of the spiral blade through the groove, and the groove and the first side wall are located in the same plane.

[0022] Further, the cavity wall of the feeding cavity includes a first side wall and a second side wall arranged opposite to each other, and the outer shell is provided with a mounting plate;

[0023] One side of the mounting plate and the second side wall together form a mounting cavity, the mounting cavity is communicated with the feeding cavity, and is used to accommodate the mounting member;

[0024] The sensing device is arranged on the other side of the mounting plate.

[0025] Furthermore, the spreading system also includes a storage container.

[0026] The bottom of the storage container is provided with a discharge port for discharging materials into the outer shell; the top of the outer shell is provided with a feed port, which corresponds to the discharge port of the storage container;

[0027] The feed port is communicated with the feeding cavity.

[0028] Furthermore, the feeding chamber comprises two, and both feeding chambers are connected to the feeding port.

[0029] Furthermore, a partition shell is provided in the outer shell to separate the inner cavity of the outer shell into two feeding cavities;

[0030] A side of the partition shell away from the feeding cavity is recessed to form an accommodating cavity, and the accommodating cavity is used to accommodate and install the motor.

[0031] Furthermore, the spreading system also includes a transmission assembly;

[0032] A transmission cavity is provided at one end of the outer shell, and the transmission cavity is communicated with both the accommodating cavity and the feeding cavity, and the transmission cavity is used to accommodate and install a transmission component; the transmission component is transmission-connected to the motor, and the auger is transmission-connected to the transmission component, so that the motor drives the auger to rotate around its own axis through the transmission component.

[0033] Furthermore, a plug-in cavity is provided at one end of the outer shell, and the plug-in cavity is communicated with the feeding cavity, so that the auger can extend into the feeding cavity through the plug-in cavity.

[0034] Furthermore, the spreading system also includes a spreading device and an outer sleeve.

[0035] The auger is arranged in the outer sleeve, the outer sleeve is connected to the sowing device, and the auger is used to spirally transport the material in the outer sleeve to the sowing device;

[0036] The outer sleeve and the auger pass through the plug-in cavity together and extend into the feeding cavity.

[0037] In a second aspect, an embodiment of the present invention provides a drone, comprising a fuselage, an arm, a landing gear, a power assembly, and a spreading system as described in any of the above embodiments, wherein the landing gear is fixed below the fuselage; the power assembly is used to provide lift for the flight of the drone; the spreading system is arranged on the fuselage, and is used to store and spread materials;

[0038] The drone includes a controller, which is electrically connected to the spreading system and is used to control the spreading system to perform or stop the spreading operation.

[0039] The beneficial effects of the unmanned equipment spreading system and drone provided by the embodiments of the present invention include: after the controller receives the instruction to stop feeding, the sensing device sends a sensing signal to the controller, so that the controller controls the motor to stop according to the sensing signal, so that the shaft stops rotating around its own axis and the opening faces upward, so that it can be ensured that when the auger is in a stopped state, the opening at the tail end of the spiral blade is in an upward state. When the auger stops conveying, since the spiral blade is spiral-shaped, its tail end can carry materials, which can effectively prevent the materials at the tail end of the spiral blade from falling under its own gravity and causing leakage. Therefore, the unmanned equipment spreading system and drone provided by the embodiments of the present invention can effectively prevent the auger of the spreading system from leaking materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] 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.

[0041] Figure 1 A schematic diagram of the structure of an unmanned device used in the auger provided in an embodiment of the present invention;

[0042] Figure 2 for Figure 1 A schematic diagram of a portion of the structure of the unmanned equipment in FIG. 1 , wherein the structure of the storage container is shown;

[0043] Figure 3 A schematic diagram of the structure of a spreading system of unmanned equipment used by an auger according to an embodiment of the present invention, wherein a storage container is not shown;

[0044] Figure 4 for Figure 3 A schematic structural diagram of a bottom structure of a spreading system from a first perspective, wherein an outer sleeve corresponding to one auger is not shown;

[0045] Figure 5 for Figure 3A schematic structural diagram of a bottom structure of a spreading system from a second perspective;

[0046] Figure 6 for Figure 3 A schematic diagram of the structure of the outer shell of the spreading system;

[0047] Figure 7 for Figure 3 Schematic diagram of the connection structure between the auger, the outer sleeve and the spreading device;

[0048] Figure 8 A schematic diagram of the structure of an auger provided by an embodiment of the present invention; wherein the sensing element is in a state of being sensed by the sensing device;

[0049] Fig. 9 A schematic block diagram of the connection structure of a controller of an unmanned device used in an auger provided in an embodiment of the present invention;

[0050] Fig.10 A schematic structural diagram of an auger from an axial perspective provided by an embodiment of the present invention;

[0051] Fig.11 A schematic structural diagram of the auger from another perspective provided in an embodiment of the present invention.

[0052] icon:

[0053] 1-unmanned equipment; 2-fuselage; 3-arm; 4-landing gear; 5-power assembly; 10-spreading system; 20-controller;

[0054] 100-auger; 110-shaft; 120-mounting member; 121-mounting portion; 122-mounting hole; 130-spiral blade; 131-opening; 132-first blade segment; 133-second blade segment; 134-end wall; 135-groove; 140-sensing member;

[0055] 200-outer shell; 210-feeding port; 220-feeding cavity; 230-partitioning shell; 231-accommodating cavity; 241-first side wall; 242-second side wall; 250-mounting plate; 251-mounting cavity; 260-transmission cavity; 270-plug cavity;

[0056] 300-induction device; 400-motor; 500-spreading device; 600-storage container; 700-transmission assembly; 800-outer sleeve. DETAILED DESCRIPTION

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] In the related art, after the spreading system on the unmanned equipment stops the spreading operation, the material leaks out of the spreading system. The designer of the present invention found in the research that the reason for this technical problem is that the spreading system uses an auger to transport the material, and when the auger stops rotating, the material is easy to fall from the tail end opening of the auger, causing the material to leak out. Therefore, the embodiment of the present invention provides an auger that can improve the material leakage problem of the spreading system, as well as a spreading system and unmanned equipment using the auger.

[0064] See also Figure 1 The embodiment of the present invention provides an auger, which is applied to the spreading system 10 of the unmanned equipment 1 to transport materials. The auger can effectively improve the problem of material leakage. The unmanned equipment 1 can be used to spray pesticides, water or other liquids, or can also spray solid materials. The unmanned equipment 1 can be an unmanned vehicle, a drone or an unmanned ship, etc., and can be used in scenes such as agriculture and industry. In the field of plant protection, various operating equipment can be installed on the unmanned equipment 1 to realize operations such as spraying pesticides, seeds, and powders.

[0065] Among them, the unmanned vehicle can travel on land and can be used in the farming industry for plant protection operations such as spraying pesticides or water irrigation on crops; it can also be used in forest fires for operations such as spraying fire extinguishing fluid; or it can also spray solid materials to the target area.

[0066] The drone can be used in agricultural plant protection operations, spraying crops with liquids such as pesticides and water; it can also be used in forest fires to spray fire extinguishing liquids; or it can spray solid materials into the target area.

[0067] The unmanned boat can be used for water spraying operations, and can spray liquids such as pesticides and water; or it can also spray solid materials to the target area.

[0068] In this embodiment, the unmanned equipment 1 is taken as an example to be used for spraying solid materials.

[0069] The unmanned device 1 includes a fuselage 2, an arm 3, a landing gear 4, a power assembly 5, and a spreading system 10. The arms 3 are distributed on both sides of the fuselage 2 and connected to the fuselage 2. The landing gear 4 is fixed under the fuselage 2 to ensure the stability of the unmanned device 1 during takeoff and landing. The power assembly 5 is fixed to the end of the arm 3 away from the fuselage 2, and the power assembly 5 provides lift for the flight of the unmanned device 1. The spreading system 10 is arranged on the fuselage 2 for storing and spreading materials.

[0070] See also Figure 2-Figure 5The spreading system 10 may include an auger 100 , an outer shell 200 , a sensing device 300 , a motor 400 , a spreading device 500 , a storage container 600 , a transmission assembly 700 , and an outer sleeve 800 .

[0071] Please continue reading Figure 2 The storage container 600 is arranged on the body 2 and connected to the outer shell 200 for storing materials. A discharge port (not shown) is arranged at the bottom of the storage container 600 for discharging materials into the outer shell 200.

[0072] Please continue reading Figure 3 The top of the outer shell 200 is provided with a feed inlet 210, which corresponds to the discharge port of the storage container 600, and can be connected to the discharge port, or can be located below the discharge port. A feeding cavity 220 is provided in the outer shell 200, and the feed inlet 210 is connected to the feeding cavity 220. In this embodiment, two feeding cavities 220 can be selected, and both feeding cavities 220 are connected to the feed inlet 210. A partition shell 230 can be provided in the outer shell 200 to separate the internal cavity of the outer shell 200 to form two feeding cavities 220.

[0073] Please continue reading Figure 4 The side of the partition shell 230 away from the feeding cavity 220 is recessed to form a receiving cavity 231, and the receiving cavity 231 is used to receive and install the motor 400.

[0074] See also Figure 3 and Figure 6 The cavity wall of the feeding cavity 220 includes a first side wall 241 and a second side wall 242 that are arranged opposite to each other, and the outer shell 200 is provided with a mounting plate 250. One side of the mounting plate 250 and the second side wall 242 together form a mounting cavity 251, and the mounting cavity 251 is communicated with the feeding cavity 220, so that when the auger 100 is accommodated in the feeding cavity 220, the auger 100 is partially accommodated in the mounting cavity 251.

[0075] Please continue reading Figure 5 A transmission chamber 260 is provided at one end of the outer shell 200, and the transmission chamber 260 is communicated with both the accommodating chamber 231 and the feeding chamber 220, and the transmission chamber 260 is used to accommodate and install the transmission assembly 700. Since the transmission chamber 260 is communicated with both the accommodating chamber 231 and the feeding chamber 220, the transmission assembly 700 can be connected to the motor 400 in a transmission manner, and the auger 100 can be connected to the transmission assembly 700 in a transmission manner, thereby realizing power transmission, and the motor 400 can drive the auger 100 to rotate around its own axis through the transmission assembly 700. Optionally, the transmission assembly 700 can adopt a gear transmission structure.

[0076] Please continue reading Figure 6The other end of the outer shell 200 is provided with a plug-in cavity 270 , which is communicated with the feeding cavity 220 , so as to allow the auger 100 to extend into the feeding cavity 220 through the plug-in cavity 270 .

[0077] See also Figure 4 and Figure 7 The auger 100 is disposed in the outer sleeve 800, and the outer sleeve 800 is connected to the sowing device 500. The auger 100 is used to spirally convey the material in the outer sleeve 800 to the sowing device 500 so that the sowing device 500 can sow the material. After the outer sleeve 800 and the auger 100 pass through the insertion cavity 270 together and extend into the feeding cavity 220, the auger 100 can cooperate with the transmission assembly 700.

[0078] Please continue reading Figure 4 The sensing device 300 is disposed on the outer shell 200 and is used to sense the stop position of the auger 100. In this embodiment, the sensing device 300 is disposed on a side of the mounting plate 250 away from the mounting cavity 251, so as to facilitate sensing the stop position of the auger 100 and improve the accuracy of detection. Optionally, the sensing device 300 may be a Hall sensor.

[0079] See also Figure 8 The auger 100 includes a shaft 110, a mounting member 120 and a spiral blade 130. The mounting member 120 is arranged at one end of the shaft 110, and a sensing member 140 is arranged on the mounting member 120. Optionally, the sensing member 140 is a magnet, which can be sensed by a Hall sensor. One end of the shaft 110 provided with the mounting member 120 is transmission-connected to the motor 400, and the other end extends out of the feeding chamber 220 and is connected to the sowing device 500. The spiral blade 130 is spirally wound around the shaft 110, and an opening 131 is arranged at the tail end of the spiral blade 130. The "tail end" mentioned in this embodiment refers to the output end of the auger 100 when conveying materials.

[0080] The shaft 110 is configured such that, after the unmanned device 1 receives the stop feeding instruction, when the sensing member 140 is sensed by the sensing device 300 of the spreading system 10 for the first time, the shaft 110 stops rotating around its own axis and makes the opening 131 face upward. The stop feeding instruction represents an instruction to control the motor 400 to stop working, so as to stop the auger 100 from rotating to stop conveying materials. The stop feeding instruction can be issued by the user through the operating device.

[0081] In this way, it can be ensured that when the auger 100 is in a stopped state, the opening 131 at the tail end of the spiral blade 130 is in an upward state. When the auger 100 stops conveying, the material is stored between the tail end of the spiral blade 130 and the outer sleeve 800. Since the spiral blade 130 is spiral, the spiral blade 130 and the inner wall of the outer sleeve 800 can carry the material, which can effectively prevent the material at the tail end of the spiral blade 130 from falling under its own gravity and causing leakage.

[0082] See also Fig. 9 The unmanned equipment 1 further includes a controller 20, which is electrically connected to the sowing system 10 and is used to control the sowing system 10 to perform or stop the sowing operation. Further, in this embodiment, the sensing device 300 and the motor 400 are both electrically connected to the controller 20, and the sensing device 300 is configured to send a sensing signal to the controller 20 when the sensing element 140 is sensed for the first time after the controller 20 receives the stop feeding instruction, so that the controller 20 controls the motor 400 to stop according to the sensing signal, so that the shaft 110 stops rotating around its own axis and the opening 131 faces upward.

[0083] It should be noted that, since the sensing member 140 is disposed on the mounting member 120, the sensing member 140 can be sensed once by the sensing device 300 for each rotation of the shaft 110 driven by the motor 400. When the stop feeding instruction is not received, the sensing device 300 does not send out a sensing signal even if it senses the sensing member 140. Therefore, the controller 20 does not control the motor 400 to stop to ensure that the conveying of materials is carried out normally. After the controller 20 receives the stop feeding instruction, in order to ensure the state of the auger 100 when it stops, the controller 20 does not immediately control the motor 400 to stop, but continues to control the motor 400 to run until the sensing device 300 senses the sensing member 140 for the first time after the controller 20 receives the stop feeding instruction, and sends a sensing signal to the controller 20, and the controller 20 controls the motor 400 to stop according to the sensing signal. In this way, when the motor 400 stops, the shaft 110 stops rotating around its own axis, and the sensing member 140 is in a position sensed by the sensing device 300. When the auger 100 is stopped, the opening 131 remains facing upward, thereby preventing the material at the tail end of the spiral blade 130 from falling under its own gravity and causing leakage.

[0084] Optionally, in this embodiment, since two augers 100 are provided, a sensing member 140 may be provided on each auger 100, and then two sensing devices 300 may be provided, respectively correspondingly detecting the sensing members 140 on the two augers 100, so as to ensure that when the two augers 100 are in the stopped position, the openings 131 at the tail ends of the two augers 100 are both facing upward. In addition, in other embodiments, only one sensing device 300 and one sensing member 140 may be provided, and only the stopped position of one of the augers 100 may be detected, and the sensing device 300 may send a sensing signal to realize the synchronous control of the two augers 100 by the controller 20. In order to ensure that when the two augers 100 are stopped, the openings 131 are both facing upward, it is only necessary to ensure that the initial installation position is accurate when installing the augers 100, that is, when the augers 100 with the sensing member 140 are in the position sensed by the sensing device 300, the opening 131 of the augers 100 is facing upward, and the other augers 100 are installed to the position where the opening 131 faces upward.

[0085] Please continue reading Figure 8 In this embodiment, the spiral blade 130 may include a first blade segment 132 located at the tail end and a second blade segment 133 adjacent to and connected to the first blade segment 132. An end wall 134 is provided at one end of the first blade segment 132 away from the second blade segment 133, and an opening 131 is formed between the end wall 134 and the second blade segment 133.

[0086] It should be noted that the end wall 134 is the tail end of the spiral blade 130 for discharging materials, the first blade segment 132 is formed by the spiral blade 130 spirally winding 360° around the shaft 110 starting from the end wall 134, and the second blade segment 133 is formed by the spiral blade 130 spirally winding 360° around the shaft 110 starting from the connection position with the first blade segment 132. In other words, the above-mentioned opening 131 is formed between the end wall 134 on the tail end of the spiral blade 130 and the corresponding part on the second blade segment 133. In this way, it can be ensured that the tail end of the auger 100 faces upward, and the opening 131 remains upward, ensuring that the material does not leak.

[0087] See also Figure 8 and Fig.10 Further, the shaft 110 is configured such that, after the unmanned device 1 receives the instruction to stop feeding, when the sensing element 140 is sensed by the sensing device 300 of the spreading system 10 for the first time, the shaft 110 stops rotating around its own axis, and the end wall 134 and the sensing element 140 are in the same horizontal plane, and the end wall 134 faces upward. That is, when the shaft 110 is in a stopped state, the end wall 134 and the sensing element 140 can be considered to be flush in the same horizontal plane, and the end wall 134 faces upward, thereby ensuring that the tail end of the spiral blade 130 faces upward to prevent leakage.

[0088] It should be noted that the position of the sensing member 140 on the mounting member 120 is not specifically limited, as long as the shaft 110 stops rotating around its own axis and the opening 131 faces upward when the sensing member 140 is sensed by the sensing device 300. In this embodiment, the sensing member 140 can be in a horizontal position relative to the mounting member 120 when the sensing member 140 is sensed by the sensing device 300. In other embodiments, it can also be in a vertical position or an inclined position, for example.

[0089] In addition, the shaft 110 stops rotating around its own axis, so that the end wall 134 and the sensing element 140 are located in the same horizontal plane passing through the axis of the shaft 110. In other words, the horizontal plane where the end wall 134 and the sensing element 140 are located passes through the axis of the shaft 110, which can be considered as the tail end of the spiral blade 130 being spirally wound half a circle to the horizontal, which can improve the carrying effect of the spiral blade 130 on the material.

[0090] In this embodiment, the mounting member 120 is roughly disc-shaped. After the auger 100 is installed in the feeding cavity 220, the mounting member 120 is accommodated in the mounting cavity 251. A long strip-shaped mounting portion 121 is convexly provided on one side surface of the mounting member 120. The mounting portion 121 is provided with a mounting hole 122 along its length direction, and the sensing member 140 is installed in the mounting hole 122. The shaft 110 is configured so that after the unmanned device 1 receives the stop feeding instruction, when the sensing member 140 is sensed by the sensing device 300 of the spreading system 10 for the first time, the shaft 110 stops rotating around its own axis, and the end wall 134, the mounting portion 121 and the sensing member 140 are in the same horizontal plane.

[0091] It should be noted that when the shaft 110 is in a stopped state, the mounting portion 121 is horizontally arranged, and the mounting hole 122 is also horizontally arranged along the extension direction of the mounting portion 121. In this way, on the one hand, it is convenient for the sensing device 300 to sense the sensing element 140, thereby improving the accuracy of position detection, and on the other hand, the end wall 134, the mounting portion 121 and the sensing element 140 are in the same horizontal plane, further ensuring that the end wall 134 faces upward, ensuring that the tail end of the spiral blade 130 faces upward, and preventing material leakage.

[0092] See also Figure 3 and Fig.11 In addition, in order to prevent the material from being accumulated on the side wall of the outer shell 200 during transportation, in this embodiment, a groove 135 is provided on the outer contour of the spiral blade 130 .

[0093] It should be noted that, since the gap between the spiral blade 130 and the outer shell 200 is small when passing through the outer shell 200 to ensure the conveying effect, when there is a material with a large particle size, the large particle size material may be blocked at the position of the spiral blade 130 corresponding to the cavity wall of the feeding cavity 220 during the conveying process, causing material accumulation. Therefore, by providing a groove 135 on the spiral blade 130, even a large particle size material can pass through the groove 135 when the spiral blade 130 rotates, and thus be conveyed toward the tail end of the spiral blade 130.

[0094] Furthermore, after the auger 100 is installed in the feeding cavity 220, a passage for the passage of materials is formed between the groove 135 and the outer shell 200, and the groove 135 and the first side wall 241 are located in the same plane. In this way, when the material is conveyed to the first side wall 241, it is not easy to accumulate on the first side wall 241, and it can continue to be conveyed to the tail end of the spiral blade 130 through the groove 135, thereby preventing the motor 400 from being burned due to the accumulation of materials on the first side wall 241, and the spiral blade 130 from being damaged due to the cutting of the accumulated materials by the spiral blade 130.

[0095] In summary, the auger 100, the spreading system 10 and the unmanned equipment 1 provided by the embodiment of the present invention, after the unmanned equipment 1 receives the stop feeding instruction, when the sensing element 140 is sensed by the sensing device 300 of the spreading system 10 for the first time, the shaft 110 stops rotating around its own axis and makes the opening 131 face upward, so that when the auger 100 is in the stopped state, the opening 131 at the tail end of the spiral blade 130 is in the upward state. When the auger 100 stops conveying, since the spiral blade 130 is spiral-shaped, its tail end can carry materials, which can effectively prevent the materials at the tail end of the spiral blade 130 from falling under its own gravity and causing material leakage. Therefore, the auger 100, the spreading system 10 and the unmanned equipment 1 provided by the embodiment of the present invention can effectively prevent the auger 100 of the spreading system 10 from leaking. In addition, by providing the groove 135, it is possible to prevent the accumulation of materials on the first side wall 241, and avoid the burning of the motor 400 or the damage of the spiral blade 130 caused by the accumulation of materials.

[0096] The above description is only a preferred embodiment of the present invention and is 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 spreading system for unmanned equipment, characterized in that: The spreading system (10) comprises an auger (100), an outer shell (200), a sensing device (300) and a motor (400); a feeding cavity (220) is provided in the outer shell (200); The auger (100) comprises: a shaft (110) and a spiral blade (130); the spiral blade (130) is spirally wound around the shaft (110), and an opening (131) is provided at the tail end of the spiral blade (130); wherein the spiral blade (130) comprises a first blade segment (132) located at the tail end and a second blade segment (133) adjacent to and connected to the first blade segment (132), and the opening (131) is formed between the tail end of the first blade segment (132) and the second blade segment (133); One end of the shaft (110) is drivingly connected to the motor (400); the sensing device (300) is arranged on the outer shell (200), and the sensing device (300) and the motor (400) are both electrically connected to the controller (20) of the unmanned equipment (1); the sensing device (300) is configured such that, after the controller (20) receives a stop feeding instruction, the sensing device (300) sends a sensing signal to the controller (20), so that the controller (20) controls the motor (400) to stop according to the sensing signal, thereby causing the shaft (110) to stop rotating around its own axis and the opening (131) to face upward.

2. The spreading system according to claim 1, characterized in that: An end wall (134) is provided at one end of the first blade segment (132) away from the second blade segment (133), and the opening (131) is formed between the end wall (134) and the second blade segment (133).

3. The spreading system according to claim 1 or 2, characterized in that: The auger further comprises a sensing element (140), and the sensing device (300) is configured to send a sensing signal to the controller (20) when the sensing element (140) is sensed after the controller (20) receives a stop feeding instruction.

4. The spreading system according to claim 3, characterized in that: The auger (100) further comprises a mounting member (120), wherein the mounting member (120) is arranged at one end of the shaft (110), and the sensing member (140) is arranged on the mounting member (120); and the shaft (110) is provided with one end of the mounting member (120) which is transmission-connected to the motor (400).

5. The spreading system according to claim 2, characterized in that: The auger further comprises a sensing member (140). When the sensing member (140) is sensed by the sensing device (300) of the spreading system (10) for the first time, the shaft (110) stops rotating around its own axis and makes the end wall (134) and the sensing member (140) in the same horizontal plane with the end wall (134) facing upward.

6. The spreading system according to claim 5, characterized in that: When the sensing member (140) is sensed by the sensing device (300) of the spreading system (10) for the first time, the shaft (110) stops rotating around its own axis and the end wall (134) and the sensing member (140) are located in the same horizontal plane passing through the axis of the shaft (110).

7. The spreading system according to claim 4, characterized in that: An end wall (134) is provided at one end of the first blade segment (132) away from the second blade segment (133); a long strip-shaped mounting portion (121) is protruded on one side surface of the mounting member (120); a mounting hole (122) is provided along the length direction of the mounting portion (121); and the sensing member (140) is installed in the mounting hole (122); The shaft (110) is configured such that, after the unmanned equipment (1) receives a stop feeding instruction, when the sensing element (140) is sensed for the first time by the sensing device (300) of the spreading system (10), the shaft (110) stops rotating around its own axis and makes the end wall (134), the mounting portion (121) and the sensing element (140) in the same horizontal plane.

8. The spreading system according to claim 4 or 7, characterized in that: The spreading system further comprises a spreading device (500), and the other end of the shaft (110) is connected to the spreading device (500).

9. The spreading system according to claim 8, characterized in that The cavity wall of the feeding cavity (220) comprises a first side wall (241) and a second side wall (242) which are arranged opposite to each other; One end of the shaft rod (110) away from the motor (400) extends out of the first side wall (241) and is connected to the spreading device (500).

10. The spreading system according to claim 1 or 2, characterized in that: The cavity wall of the feeding cavity (220) comprises a first side wall (241) and a second side wall (242) which are arranged opposite to each other; A groove (135) is provided on the outer contour of the spiral blade (130), and a channel for material to pass through is formed between the groove (135) and the outer shell (200), so that the material is transported to the tail end of the spiral blade (130) through the groove (135), and the groove (135) and the first side wall (241) are located in the same plane.

11. The spreading system according to claim 4, characterized in that: The cavity wall of the feeding cavity (220) comprises a first side wall (241) and a second side wall (242) arranged opposite to each other, and the outer shell (200) is provided with a mounting plate (250); One side of the mounting plate (250) and the second side wall (242) together form a mounting cavity (251), and the mounting cavity (251) is communicated with the feeding cavity (220) and is used to accommodate the mounting member (120); The sensing device (300) is arranged on the other side of the mounting plate (250).

12. The spreading system according to claim 1 or 2, characterized in that: The spreading system further comprises a storage container (600), The bottom of the storage container (600) is provided with a discharge port for discharging materials into the outer shell (200); the top of the outer shell (200) is provided with a feed port (210), and the feed port (210) corresponds to the discharge port of the storage container (600); The feed port (210) is in communication with the feed cavity (220).

13. The spreading system according to claim 1 or 2, characterized in that: The feeding chamber (220) includes two feeding chambers, and both feeding chambers (220) are connected to the feeding port (210).

14. The spreading system according to claim 13, characterized in that A partition shell (230) is provided inside the outer shell (200) for dividing the inner cavity of the outer shell (200) into two feeding cavities (220); A side of the partition shell (230) away from the feeding cavity (220) is recessed to form a receiving cavity (231), and the receiving cavity (231) is used to receive and install the motor (400).

15. The spreading system according to claim 14, characterized in that The spreading system also includes a transmission assembly (700); A transmission chamber (260) is provided at one end of the outer shell (200), and the transmission chamber (260) is communicated with both the accommodating chamber (231) and the feeding chamber (220), and the transmission chamber (260) is used to accommodate and install a transmission assembly (700); the transmission assembly (700) is transmission-connected to the motor (400), and the auger (100) is transmission-connected to the transmission assembly (700), so that the motor (400) drives the auger (100) to rotate around its own axis through the transmission assembly (700).

16. The spreading system according to claim 1 or 14 or 15, characterized in that: One end of the outer shell (200) is provided with an inserting cavity (270), which is communicated with the feeding cavity (220) and is used for allowing the auger (100) to extend into the feeding cavity (220) through the inserting cavity (270).

17. The spreading system according to claim 16, characterized in that The spreading system further comprises a spreading device (500) and an outer sleeve (800). The auger (100) is disposed in the outer sleeve (800), the outer sleeve (800) is connected to the sowing device (500), and the auger (100) is used to spirally transport the material in the outer sleeve (800) to the sowing device (500); The outer sleeve (800) and the auger (100) pass through the insertion cavity (270) together and extend into the feeding cavity (220).

18. A drone, characterized in that: The drone comprises a fuselage (2), an arm (3), a landing gear (4), a power assembly (5), and a spreading system (10) according to any one of claims 1 to 17, wherein the landing gear (4) is fixed below the fuselage (2); the power assembly (5) is used to provide lift for the flight of the drone; the spreading system (10) is arranged on the fuselage (2) and is used to receive and spread materials; The drone comprises a controller (20), which is electrically connected to the sowing system (10) and is used to control the sowing system (10) to perform a sowing operation or stop the sowing operation.

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