CN114030828A - Material feeding unit, equipment and unmanned aerial vehicle scatter - Google Patents

Abstract

The invention discloses a feeding device, sowing equipment and an unmanned aerial vehicle, and relates to the field of material conveying; the feeding device comprises a feeding shell and a feeding mechanism. The feeding shell is provided with an inlet and an outlet, the inlet is used for inputting materials, and the outlet is used for outputting the materials; the feeding mechanism comprises a driving piece, a transmission piece and a feeding piece; the driving piece is arranged on the feeding shell; the transmission part is arranged at the output end of the driving part; the feeding piece is arranged in the feeding shell and is coaxially connected with the transmission piece, one of the feeding piece and the transmission piece is provided with a limiting groove, the other of the feeding piece and the transmission piece is provided with a limiting bulge, and the limiting groove is inserted with the limiting bulge so as to limit the feeding piece to rotate relative to the transmission piece; the driving piece is used for driving the driving piece to drive the feeding piece to synchronously rotate so as to drive the material input from the inlet to move to the outlet. This material feeding unit accessible spacing groove and spacing arch carry on spacingly to the pay-off piece, can guarantee pay-off piece moving stability, and the pay-off effect can be guaranteed in the appearance of reducible swing or offset problem.

Description

Material feeding unit, equipment and unmanned aerial vehicle scatter

Technical Field

The invention relates to the technical field of material conveying, in particular to a feeding device, sowing equipment and an unmanned aerial vehicle.

Background

In recent years, in order to reduce the burden of manually spreading materials such as fertilizers and seeds, an unmanned aerial vehicle is often used to carry spreading equipment for spreading. The sowing equipment comprises a feeding device and a sowing device, wherein the feeding device is provided with a driving piece, a driving piece and a feeding piece, one end of the driving piece is in transmission connection with the driving piece, and the other end of the driving piece is in transmission connection with the feeding piece and is used for driving the feeding piece to rotate under the driving action of a motor so as to realize the conveying of materials. However, in the prior art, the feeding member is easy to swing or shift along with the operation of the transmission member, thereby affecting the feeding effect and further affecting the scattering effect.

Disclosure of Invention

The invention aims to provide a feeding device, wherein a transmission part and a feeding part can be limited through a limiting bulge and a limiting groove after being in transmission connection, so that the stability after matching is high, the swinging or position deviation is not easy to occur in the rotating process, and the feeding effect can be fully ensured.

Another object of the invention is to provide a sowing device and an unmanned aerial vehicle, which comprise the feeding device. Therefore, the method also has the advantages of stable feeding effect, high sowing efficiency and high quality.

The embodiment of the invention is realized by the following steps:

in a first aspect, the present invention provides a feeding device comprising:

the feeding shell is provided with an inlet and an outlet, the inlet is used for inputting materials, and the outlet is used for outputting the materials;

the feeding mechanism comprises a driving piece, a transmission piece and a feeding piece; the driving piece is arranged on the feeding shell; the transmission part is arranged at the output end of the driving part; the feeding piece is arranged in the feeding shell and is coaxially connected with the transmission piece, one of the feeding piece and the transmission piece is provided with a limiting groove, the other of the feeding piece and the transmission piece is provided with a limiting bulge, and the limiting groove is inserted with the limiting bulge so as to limit the feeding piece to rotate relative to the transmission piece; the driving piece is used for driving the driving piece to drive the feeding piece to synchronously rotate so as to drive the material input from the inlet to move to the outlet.

In an optional embodiment, the feeding member comprises a shaft body and blades spirally arranged around the circumference of the shaft body, the shaft body is coaxially connected with the transmission member, and the limiting bulge is arranged on the shaft body; the limiting groove is arranged on the transmission part.

In an optional embodiment, the shaft body is provided with a plurality of limiting protrusions which are annularly arranged in the circumferential direction of the shaft body at intervals, the centers of the limiting protrusions are located on the axis of the shaft body, and an inserting groove is formed between any two adjacent limiting protrusions and the shaft body;

the transmission part and the shaft body are arranged coaxially, the transmission part is provided with a plurality of limiting grooves, the limiting grooves are annularly arranged in the circumferential direction of the transmission part at intervals, the centers of the limiting grooves are positioned on the axis of the transmission part, and an inserting protrusion is formed between any two adjacent limiting grooves;

the plurality of limiting bulges are in one-to-one corresponding inserting fit with the plurality of limiting grooves, and the plurality of inserting grooves are in one-to-one corresponding inserting fit with the plurality of inserting bulges.

In an optional embodiment, an installation cavity is formed in the end portion of the shaft body, and the limiting bulge is arranged in the installation cavity and protrudes towards the axis direction of the shaft body;

the driving piece is kept away from to the driving medium one end and installation cavity adaptation for peg graft along the axial of axis body with the installation cavity, the spacing groove is seted up in the tip that the driving piece was kept away from the one end of driving piece, when the driving piece was pegged graft along the axial of axis body with the installation cavity, the lateral wall of driving piece and the inside wall laminating of installation cavity, spacing arch is pegged graft along the axial of axis body with the spacing groove.

In optional embodiment, the driving piece is driving motor, driving motor has the output shaft, and the driving medium includes transmission shaft and transmission shell, and the first end and the output shaft transmission of transmission shaft are connected, the second end and the transmission shell threaded connection of transmission shaft, and the screw thread revolve to opposite with driving motor's the spiral direction, transmission shell and pay-off piece coaxial coupling, and spacing groove or spacing arch set up in the transmission shell.

In an optional embodiment, the output shaft is a flat shaft, the first end of the transmission shaft is provided with a flat groove, and the flat groove is inserted into the flat shaft.

In an optional embodiment, a tapered portion is arranged at an end portion of the second end of the transmission shaft, the outer diameter of the tapered portion gradually increases along a direction from the second end to the first end, the second end of the transmission shaft is further provided with an external thread, and the external thread is located at a position, close to the first end, of the tapered portion;

the transmission shell is provided with a first connecting hole and a second connecting hole which are communicated, the first connecting hole is a conical hole, the second connecting hole is a round hole, and the inner hole wall of the second connecting hole is provided with an internal thread;

the conical part is matched with the conical hole, and the internal thread is matched with the external thread.

In an alternative embodiment, the feeding device further comprises a bearing member, and the transmission member is rotatably matched with the feeding shell through the bearing member;

or,

the feeding device further comprises a bearing piece, a first oil seal piece and a second oil seal piece, the transmission piece is rotatably matched with the feeding shell through the bearing piece, and the first oil seal piece and the second oil seal piece are sleeved outside the transmission piece, are positioned on two sides of the bearing piece and are respectively connected with the corresponding positions of the feeding shell.

In a second aspect, the present invention provides a sowing apparatus comprising:

the feed device of any one of the preceding embodiments;

and the spreading device is arranged on the feeding shell, communicated with the outlet and used for spreading the materials output from the outlet.

In a third aspect, the invention provides an unmanned aerial vehicle comprising a feeding device according to any one of the preceding embodiments, or comprising a sowing apparatus according to the preceding embodiments.

The embodiment of the invention has at least the following advantages or beneficial effects:

the embodiment of the invention provides a feeding device which comprises a feeding shell and a feeding mechanism. The feeding shell is provided with an inlet and an outlet, the inlet is used for inputting materials, and the outlet is used for outputting the materials; the feeding mechanism comprises a driving piece, a transmission piece and a feeding piece; the driving piece is arranged on the feeding shell; the transmission part is arranged at the output end of the driving part; the feeding piece is arranged in the feeding shell and is coaxially connected with the transmission piece, one of the feeding piece and the transmission piece is provided with a limiting groove, the other of the feeding piece and the transmission piece is provided with a limiting bulge, and the limiting groove is inserted with the limiting bulge so as to limit the feeding piece to rotate relative to the transmission piece; the driving piece is used for driving the driving piece to drive the feeding piece to synchronously rotate so as to drive the material input from the inlet to move to the outlet. This material feeding unit is through setting up spacing groove and spacing arch between pay-off piece and driving medium, can carry on spacingly to it after the two transmission is connected to guarantee the stability after the two transmission is connected, make the difficult relative driving medium of pay-off piece appear rotating, and then the problem of reducible transmission in-process swing or offset appears, then can fully guarantee the pay-off effect.

The embodiment of the invention also provides sowing equipment and an unmanned aerial vehicle, which comprise the feeding device. Therefore, the method also has the advantages of stable feeding effect, high sowing efficiency and high quality.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a sowing apparatus according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a feeding device according to an embodiment of the present invention;

fig. 3 is an exploded schematic view of a feeding device provided in an embodiment of the present invention;

fig. 4 is an exploded schematic view of a feeding mechanism of a feeding device according to an embodiment of the present invention;

FIG. 5 is an enlarged view at I of FIG. 4;

fig. 6 is a schematic structural diagram of a transmission housing of a feeding device according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a feeding member of the feeding device provided by the embodiment of the invention;

fig. 8 is a schematic structural view of a shaft body of a feeding member of the feeding device according to the embodiment of the present invention.

The icon is 100-feeding device; 102-a feed shell; 104-an inner housing; 106-an outer shell; 108-a first inlet; 110-a second inlet; 113-an outlet; 115-a feeding mechanism; 116-a drive member; 118-a transmission; 120-a feeding member; 122-a mounting housing; 124-shaft body; 126-a first blade; 127-a second blade; 128-a drive shaft; 130-a drive housing; 132-a conical portion; 134-a threaded portion; 136-a first connection hole; 138-second connection hole; 140-a bearing member; 142-a first oil seal; 144-a second oil seal; 146-a limiting groove; 148-a limit protrusion; 150-a mounting cavity; 152-an output shaft; 154-flat groove; 157-a plug groove; 159 — plug-in bumps; 200-sowing equipment; 202-a sowing mechanism; 204-spreading the shell; 206-a sowing motor; 208-seeding the disc.

Detailed Description

In order to make the objects, 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 with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the related art, in order to reduce the burden of manually sowing materials such as fertilizers and seeds, an unmanned aerial vehicle is often used for carrying sowing equipment to perform sowing operation. The sowing equipment comprises a feeding device and a sowing device, wherein the feeding device is provided with a driving piece, a driving piece and a feeding piece, one end of the driving piece is in transmission connection with the driving piece, and the other end of the driving piece is in transmission connection with the feeding piece and is used for driving the feeding piece to rotate under the driving action of a motor so as to realize the conveying of materials. However, the feeding member is easy to swing or shift when operating along with the transmission member, thereby affecting the feeding effect and further affecting the sowing effect.

In view of this, this embodiment provides an unmanned aerial vehicle, still can carry on spacingly through spacing arch and spacing groove after transmission connection between material feeding unit's that it includes the driving medium and the pay-off piece, therefore stability after the cooperation is high, is difficult for swing or position deviation to appear in the rotation process, can fully guarantee the pay-off effect to can guarantee to scatter efficiency and quality. The structure of the drone is described in detail below.

Fig. 1 is a schematic structural diagram of a sowing apparatus 200 according to the present embodiment; fig. 2 is a schematic cross-sectional view of the feeding device 100 provided in this embodiment; fig. 3 is an exploded schematic view of the feeding device 100 provided in this embodiment; fig. 4 is an exploded schematic view of the feeding mechanism 115 of the feeding device 100 according to the present embodiment; fig. 5 is a partial enlarged view at I of fig. 4. Referring to fig. 1 to 5, the present embodiment provides an unmanned aerial vehicle, which includes a frame body (not shown), a sowing apparatus 200 and a storage box (not shown).

In detail, the support body is unmanned aerial vehicle's fuselage, and equipment 200 and the stock box are scattered for carrying on the structure on the support body, and wherein, the stock box is used for depositing materials such as fertilizer, seed, and the stock box still communicates with equipment 200 of scattering for to scattering equipment 200 transported substance material, equipment 200 of scattering is used for scattering the operation, in order to satisfy crops growth demand. The storage box is specifically and fixedly disposed above the sowing device 200 to facilitate communication and cooperation therebetween for conveying materials, and in other embodiments, the storage box may also be disposed on the frame body to communicate with the sowing device 200 through a pipeline, which is not limited in this embodiment.

Referring to fig. 1 to 5 again, in the present embodiment, the sowing apparatus 200 specifically includes a feeding device 100 and a sowing device. The feeding device 100 is communicated with the storage box and is used for receiving materials output by the storage box. Meanwhile, the feeding device 100 is also communicated with the scattering device and is used for conveying materials to the scattering device, so that the scattering device can complete the scattering operation of the materials.

In detail, in the present embodiment, the feeding device 100 specifically includes a feeding shell 102 and a feeding mechanism 115.

The feed housing 102 has an inlet and an outlet 113, the inlet communicating with the storage bin and the outlet 113 communicating with the spreading device. The inlet is adapted to receive material from the storage bin for feeding the material from the storage bin to the spreading device via the outlet 113 for performing a spreading operation.

The feeding mechanism 115 specifically includes a driving member 116, a transmission member 118, and a feeding member 120. The driving member 116 is a driving motor, and the driving member 116 is fixedly disposed at an end of the feeding shell 102 through a mounting shell 122. The transmission member 118 is disposed at the output end of the driving member 116 and is in transmission connection with the output shaft 152 of the driving motor. The feeding member 120 extends into the feeding housing 102, is coaxially connected with the transmission member 118, and at least partially faces the inlet to synchronously rotate during the rotation of the feeding member 120 driven by the driving motor. Meanwhile, one of the feeding member 120 and the transmission member 118 is provided with a limiting groove 146, the other of the feeding member 120 and the transmission member 118 is provided with a limiting protrusion 148, and the limiting groove 146 is inserted into the limiting protrusion 148 to limit the feeding member 120 to rotate relative to the transmission member 118. The driving motor can rotate through the driving transmission member 118 to drive the feeding member 120 to rotate synchronously, so as to drive the material input from the inlet to move to the outlet 113, and the sowing device can perform sowing operation conveniently.

Through the grafting setting of spacing groove 146 and spacing arch 148, can carry on spacingly to the two after driving medium 118 is connected with the transmission of pay-off piece 120 to guarantee the stability after the two transmission is connected, make pay-off piece 120 difficult relative driving medium 118 appear rotating, and then the problem of reducible transmission in-process swing or offset appears, then can fully guarantee the pay-off effect.

More specifically, in this embodiment, the feeding shell 102 includes an inner shell 104 and an outer shell 106, wherein the outer shell 106 and the inner shell 104 are both disposed in a cylindrical structure, the outer shell 106 is sleeved outside the inner shell 104, a first inlet 108 is disposed on the outer shell 106, a second inlet 110 is disposed at a corresponding position of the inner shell 104, and the first inlet 108 and the second inlet 110 are opposite and communicated to form an inlet through which the feeding shell 102 is communicated with the storage box. Meanwhile, the number of the outlets 113 is two, and the outlets 113 are respectively located at two ends of the inner shell 104, the feeding member 120 is extended and arranged between the two outlets 113, one end of the feeding member is supported by the end of the inner shell 104, and the other end of the feeding member is supported by the end of the outer shell 106, so that the two-way feeding to the two outlets 113 can be realized simultaneously. The sowing device comprises two sowing mechanisms 202, wherein the two sowing mechanisms 202 are respectively arranged at two ends of the feeding shell 102 and are respectively communicated with the two outlets 113 in a one-to-one correspondence manner, so that the materials output by each outlet 113 can be sown through the sowing mechanisms 202 at corresponding positions.

It should be noted that, in this embodiment, in order to realize bidirectional material conveying, the feeding member 120 may be a bidirectional auger, and the feeding member 120 includes a shaft 124 and blades spirally arranged around the circumference of the shaft 124. The shaft body 124 is coaxially connected to the transmission member 118, the limiting protrusion 148 is disposed on the shaft body 124, and the limiting groove 146 is correspondingly disposed on the transmission member 118 so as to be inserted into the limiting protrusion 148. Meanwhile, the number of the blades is two, the blades are respectively a first blade 126 and a second blade 127, the rotating directions of the first blade 126 and the second blade 127 are opposite, the first blade 126 extends from the inlet position to one of the two outlets 113, and the second blade 127 extends from the inlet position to the other of the two outlets 113, because the rotating directions of the first blade 126 and the second blade 127 are opposite, when the driving member 116 rotates, the driving member 118 and the shaft body 124 can be driven to rotate synchronously, so that the first blade 126 and the second blade 127 can respectively drive the material input from the inlet to move to the outlets 113 at the two ends, so that the material can be conveyed to the spreading mechanism 202 at the corresponding position through the outlet 113 at the corresponding position, and the spreading operation can be performed.

The bidirectional material conveying device can save material conveying time on one hand, so that the material conveying efficiency is improved, and the sowing efficiency is improved; on the other hand, the acting force of the feeding device 100 can be balanced, so that the whole feeding and scattering operation is more stable and stable, and the material scattering quality can be ensured. The limiting protrusions 148 are arranged on the shaft body 124, so that the stability of matching of the limiting protrusions 148 and the limiting grooves 146 is guaranteed, and the sowing efficiency and quality are further guaranteed.

It should also be noted that in this embodiment, the two spreader mechanisms 202 are identical in structure and each include a spreader shell 204, a spreader motor 206, and a spreader disk 208. The scattering shell 204 is fixedly connected to the feeding shell 102 and is communicated with the outlet 113 at a corresponding position, and the scattering motor 206 is disposed on the scattering shell 204 and is in transmission connection with the scattering disk 208. During a spreading operation, the spreading motor 206 can drive the spreading disc 208 to rotate to spread the material output from the outlet 113.

Fig. 6 is a schematic structural diagram of the transmission housing 130 of the feeding device 100 provided in this embodiment; fig. 7 is a schematic structural diagram of the feeding member 120 of the feeding device 100 according to this embodiment. Referring to fig. 4 to 7, in the present embodiment, the shaft body 124 is provided with a plurality of limiting protrusions 148, the limiting protrusions 148 are annularly arranged in the circumferential direction of the shaft body 124 at intervals, centers of the limiting protrusions 148 are located on an axis of the shaft body 124, and an insertion groove 157 is formed between any two adjacent limiting protrusions 148 and the shaft body 124. That is, since the limiting protrusions 148 are spaced apart, a relatively concave insertion groove 157 is formed between the adjacent limiting protrusions 148 and the wall of the shaft body 124.

Correspondingly, the transmission piece 118 is provided with a plurality of limiting grooves 146, the limiting grooves 146 are annularly arranged in the circumferential direction of the transmission piece 118 at intervals, the centers of the limiting grooves 146 are located on the axis of the transmission piece 118, and an inserting protrusion 159 is formed between any two adjacent limiting grooves 146. That is, since the limiting grooves 146 are spaced apart, an insertion protrusion 159 protruding relatively may be formed between the adjacent limiting grooves 146.

By such an arrangement, when the plurality of limiting protrusions 148 and the plurality of limiting grooves 146 are in one-to-one corresponding insertion fit, the plurality of insertion grooves 157 and the plurality of insertion protrusions 159 can also be in one-to-one corresponding insertion fit. That is, in this embodiment, the engagement between the transmission member 118 and the shaft body 124 can not only be limited by the insertion engagement between the limiting protrusion 148 and the limiting groove 146, but also limited by the insertion engagement between the insertion protrusion 159 and the insertion groove 157, and the engagement portions of the two can be completely attached to provide an effective limiting function, so as to sufficiently ensure the stability of the transmission member 118 and the feeding member 120 after engagement. Meanwhile, the centers of the limiting protrusions 148 are located on the axis of the shaft body 124, and the centers of the limiting grooves 146 are also located on the axis of the shaft body 124, so that the matching of the limiting protrusions 148 and the limiting grooves 146 can provide automatic centering and positioning effects for the matching of the shaft body 124 and the transmission piece 118, and the coaxial line arrangement is realized after the transmission matching of the shaft body 124 and the transmission piece 118 is fully ensured, so that the torque of the driving piece 116 can be effectively transmitted to the shaft body 124, and the first blade 126 and the second blade 127 are driven to synchronously rotate, so that the feeding effect is ensured.

As an alternative, referring to fig. 3 to fig. 6 again, in the present embodiment, the transmission connection manner of the entire shaft body 124 and the entire transmission member 118 is a coaxial plug-in fit. And specifically, the end of the shaft body 124 is provided with a mounting cavity 150, and the limiting protrusion 148 is disposed in the mounting cavity 150 and protrudes toward the axis of the shaft body 124. One end and the installation cavity 150 adaptation that driving piece 116 was kept away from to driving piece 118 for peg graft along the axial of axis body 124 with installation cavity 150, spacing groove 146 sets up the tip of the one end that driving piece 116 was kept away from to driving piece 118, when driving piece 118 and installation cavity 150 were pegged graft along the axial of axis body 124, the lateral wall of driving piece 118 and the inside wall laminating of installation cavity 150, spacing arch 148 and spacing groove 146 were pegged graft along the axial of axis body 124.

Through the arrangement, on one hand, the shaft body 124 and the transmission piece 118 are in inserted fit, so that the advantages of convenience in installation, disassembly and maintenance are achieved, the cleaning and cleaning operation of the blades, the inner shell 104 and the outer shell 106 is facilitated, and the maintenance and use cost can be reduced; on the other hand, because the limiting protrusion 148 is arranged in the installation cavity 150, an inserting groove 157 can be formed between the adjacent limiting protrusion 148 and the inner wall of the installation cavity 150, the limiting groove 146 is arranged at the end part of the shaft body 124, an inserting protrusion 159 can be formed between the two limiting grooves 146, so that the inserting protrusion 159 is inserted into the inserting groove 157, and the limiting protrusion 148 is inserted into the limiting groove 146, the outer side wall of the shaft body 124 can be tightly attached to the inner wall of the installation cavity 150, the groove and the protrusion can also be tightly attached, so that the limiting protrusion 148 not only can provide limiting, positioning and centering functions, but also can directly transmit the torque of the driving part 116 to the shaft body 124, the coaxiality of the driving part 118 and the shaft body 124 is ensured, and the feeding and scattering effects are fully ensured.

Of course, in other embodiments, the shaft body 124 and the transmission member 118 may also be directly and fixedly connected, for example, fixedly connected through a structure such as a screw or a bolt, when the shaft body and the transmission member are fixedly connected, the shaft body and the transmission member may still be limited by the limiting protrusion 148 and the limiting groove 146, and the stability after the shaft body and the transmission member are fixedly connected may also be sufficiently ensured, which is not described in detail in this embodiment.

In addition, it should be noted that, in the present embodiment, the number of the limiting protrusions 148 is specifically four, and the four limiting protrusions 148 are arranged in a substantially cross-shaped structure. Correspondingly, the number of the limiting grooves 146 is four, so that the end part of the whole transmission member 118 is in a cross spline shape, and when the limiting grooves are matched with the limiting protrusions 148 to transmit torque, good positioning, centering and limiting effects are provided, the running stability of the shaft body 124 is ensured, and the feeding quality and the scattering quality are fully improved. Of course, in other embodiments, the number of the limiting protrusions 148 and the limiting grooves 146 may also be adjusted and selected according to requirements, so as to ensure the stability and reliability of the transmission member 118 and the shaft body 124 after being matched, which is not limited in this embodiment.

Fig. 8 is a schematic structural diagram of the shaft 124 of the feeding member 120 of the feeding device 100 according to this embodiment. Referring to fig. 2, fig. 3, fig. 4, fig. 5 and fig. 8, in the present embodiment, the driving motor has an output shaft 152, and the transmission member 118 specifically includes a transmission shaft 128 and a transmission housing 130. Wherein, the first end of transmission shaft 128 is connected with output shaft 152 transmission, and the second end of transmission shaft 128 and transmission shell 130 threaded connection, and the spiral direction of screw thread is opposite with driving motor's spiral direction, and transmission shell 130 and pay-off piece 120 coaxial coupling, and spacing groove 146 specifically sets up the tip at transmission shell 130. The turning of screw thread and driving motor's turning set up to opposite and make transmission shell 130 difficult not hard up or drop in the motion process to can fully guarantee the stability behind transmission shell 130 and the cooperation of axis body 124, make transmission shell 130 can export the power of driving piece 116 to axis body 124 steadily, in order to drive the rotation of axis body 124, thereby make the blade can take the material to export 113 from the entry, in order to scatter mechanism 202 and scatter the operation.

As an optional scheme, in this embodiment, the output shaft 152 is a flat shaft, which is substantially in a "D" shape, the first end of the transmission shaft 128 is provided with a flat groove 154, which is adapted to the shape of the flat shaft, and is also substantially in a "D" shape, the flat groove 154 is inserted into the flat shaft, so that the power of the output shaft 152 of the driving member 116 can be well transmitted to the transmission shaft 128, and thus the power is conveniently transmitted to the transmission housing 130, so as to smoothly drive the shaft body 124 of the feeding member 120 to rotate. Of course, in other embodiments, the shapes of the mating ends of the output shaft 152 and the transmission shaft 128 may also be adjusted, for example, the mating ends may also be set to be square, etc., which may ensure the stability of the transmission operation of the transmission member 118, and this embodiment is not described again.

Referring to fig. 3 to 6 and 8 again, in the present embodiment, the end portion of the second end of the transmission shaft 128 is provided with a tapered portion 132, and the outer diameter of the tapered portion 132 gradually increases along the direction from the second end to the first end. The second end of the drive shaft 128 is also provided with a threaded portion 134, the threaded portion 134 being provided with external threads located at a position of the tapered portion 132 adjacent the first end. Correspondingly, the transmission shell 130 has a first connection hole 136 and a second connection hole 138 which are communicated with each other, the first connection hole 136 is a tapered hole, the second connection hole 138 is a round hole, an inner hole wall of the second connection hole 138 is provided with an internal thread, the tapered portion 132 is connected with the tapered hole in an inserting mode, the conical surface of the tapered portion 132 is attached to the inner side conical surface of the tapered hole, and the internal thread is in threaded fit with the external thread.

On one hand, the arrangement of the conical part 132 and the conical hole can provide limit for the matching of the transmission shell 130 and the shaft body 124, limit the axial movement of the transmission shell 130 relative to the transmission shaft 128, and ensure the stability of the transmission shell 130 after matching with the shaft body 124, thereby ensuring the stability of the whole power transmission process and the feeding quality; on the other hand, through the cooperation of internal thread and external screw thread, can further guarantee power transmission's stability again, avoid driving shell 130 not hard up or drop, can further guarantee pay-off efficiency and quality, and then guarantee to scatter efficiency and scatter the quality.

Optionally, in this embodiment, the feeding device 100 further includes a bearing member 140, a first oil seal member 142, and a second oil seal member 144. The transmission shaft 128 of the transmission member 118 is rotatably engaged with the outer casing 106 through a bearing member 140, and the first oil seal member 142 and the second oil seal member 144 are both sleeved outside the transmission shaft 128 and located at two sides of the bearing member 140, and are respectively connected with the corresponding positions of the feeding casing 102 for oil sealing, so as to ensure the cleanness, smoothness and stability of the whole feeding operation. Meanwhile, the transmission shaft 128 is supported on the outer shell 106, so that the stability of the rotation process of the transmission shaft 128 can be further improved, and the reliability and the stability of feeding operation and scattering operation are fully ensured.

The installation process, the working principle and the beneficial effects of the unmanned aerial vehicle provided by the invention are described in detail as follows:

when the unmanned aerial vehicle is installed, two assembled sowing mechanisms 202 can be respectively arranged at two ends of the feeding shell 102 of the assembled feeding device 100 and are respectively communicated with the two outlets 113 to form a sowing device 200; then, the sowing apparatus 200 is mounted on the frame body, and the stock box is fixedly connected with the sowing apparatus 200, so that the stock box is communicated with the inlet. During the process of assembling the feeding device 100, the inner shell 104 and the outer shell 106 may be first matched to form the mounting shell 122, and then the transmission shaft 128 is mounted on the mounting shell 122, and two ends of the transmission shaft are respectively supported by two ends of the mounting shell 122; then, the driving member 116 is mounted on the outer housing 106 through the mounting shell 122, the flat groove 154 of the transmission shaft 128 is inserted into the output shaft 152, the tapered portion 132 of the transmission shaft 128 is inserted into the tapered hole of the transmission shell 130, the transmission shaft 128 is rotated to be in threaded fit with the transmission shell 130, and then the transmission shell 130 is inserted into the mounting cavity 150, so that the limiting protrusion 148 is inserted into the limiting groove 146, and the insertion protrusion 159 is inserted into the insertion groove 157.

This unmanned aerial vehicle can fly to the destination when scattering the operation, then starts driving piece 116 for driving piece 116 drive transmission shaft 128 rotates, in order to drive transmission shell 130 and axis body 124 synchronous rotation, in order to make first blade 126 and second blade 127 can drive the material in step and to two export 113 movements, thereby make two exports 113 can be respectively to the mechanism 202 output material that scatters that corresponds the position, make to scatter the mechanism 202 and can scatter the operation.

In the above process, this material feeding unit 100 can be spacing its after the two transmission are connected through setting up spacing groove 146 and spacing arch 148 between pay-off piece 120 and driving medium 118 to guarantee the stability after the two transmission are connected, make pay-off piece 120 difficult relative driving medium 118 appear rotating, and then reducible transmission in-process swing or the problem of offset appear, then can fully guarantee the pay-off effect. Meanwhile, the driving member 118 and the feeding member 120 are inserted and matched, so that the installation, the disassembly and the maintenance of the feeding device 100 are facilitated, and the cleaning and other operations are facilitated.

In summary, the embodiment of the invention provides the feeding device 100, the sowing equipment 200 and the unmanned aerial vehicle, which have the advantages of high stability, good feeding effect, high sowing efficiency and quality, convenience in mounting and dismounting and low maintenance cost.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A feeding device, comprising:

a feed housing having an inlet for input of material and an outlet for output of material;

the feeding mechanism comprises a driving piece, a transmission piece and a feeding piece; the driving piece is arranged on the feeding shell; the transmission piece is arranged at the output end of the driving piece; the feeding piece is arranged in the feeding shell and is coaxially connected with the transmission piece, one of the feeding piece and the transmission piece is provided with a limiting groove, the other of the feeding piece and the transmission piece is provided with a limiting bulge, and the limiting groove is spliced with the limiting bulge so as to limit the feeding piece to rotate relative to the transmission piece; the driving piece is used for driving the driving piece to drive the feeding piece to synchronously rotate so as to drive the material input from the inlet to move to the outlet.

2. The feeding device of claim 1, wherein:

the feeding part comprises a shaft body and blades spirally arranged around the circumference of the shaft body, the shaft body is coaxially connected with the transmission part, and the limiting bulge is arranged on the shaft body; the limiting groove is formed in the transmission part.

3. The feeding device according to claim 2, wherein:

the shaft body is provided with a plurality of limiting bulges, the limiting bulges are annularly arranged in the circumferential direction of the shaft body at intervals, the centers of the limiting bulges are positioned on the axis of the shaft body, and an inserting groove is formed between any two adjacent limiting bulges and the shaft body;

the transmission part and the shaft body are coaxially arranged, the transmission part is provided with a plurality of limiting grooves, the limiting grooves are annularly arranged in the circumferential direction of the transmission part at intervals, the centers of the limiting grooves are located on the axis of the transmission part, and an inserting protrusion is formed between any two adjacent limiting grooves;

the plurality of limiting protrusions are in one-to-one corresponding inserting fit with the plurality of limiting grooves, and the plurality of inserting grooves are in one-to-one corresponding inserting fit with the plurality of inserting protrusions.

4. The feeding device according to claim 2, wherein:

the end part of the shaft body is provided with an installation cavity, and the limiting bulge is arranged in the installation cavity and is convexly arranged towards the axis direction of the shaft body;

the driving part is kept away from the one end of driving part with the installation cavity adaptation, be used for with the installation cavity is followed the axial of axis body is pegged graft, the spacing groove is seted up in the driving part is kept away from the tip of the one end of driving part, works as the driving part with the installation cavity is followed during the axial of axis body is pegged graft, the lateral wall of driving part with the inside wall laminating of installation cavity, spacing arch with the spacing groove is followed the axial of axis body is pegged graft.

5. The feeding device according to any one of claims 1 to 4, wherein:

the driving piece is a driving motor, the driving motor is provided with an output shaft, the driving piece comprises a transmission shaft and a transmission shell, the first end of the transmission shaft is in transmission connection with the output shaft, the second end of the transmission shaft is in threaded connection with the transmission shell, the rotating direction of the threads is opposite to that of the driving motor, the transmission shell is in coaxial connection with the feeding piece, and the limiting groove or the limiting protrusion is arranged in the transmission shell.

6. The feeding device of claim 5, wherein:

the output shaft is a flat shaft, a flat groove is formed in the first end of the transmission shaft, and the flat groove is connected with the flat shaft in an inserting mode.

7. The feeding device of claim 5, wherein:

the end part of the second end of the transmission shaft is provided with a conical part, the outer diameter of the conical part is gradually increased along the direction from the second end to the first end, the second end of the transmission shaft is also provided with an external thread, and the external thread is positioned at the position of the conical part close to the first end;

the transmission shell is provided with a first connecting hole and a second connecting hole which are communicated, the first connecting hole is a conical hole, the second connecting hole is a round hole, and the inner hole wall of the second connecting hole is provided with an internal thread;

the conical part is matched with the conical hole, and the internal thread is in threaded fit with the external thread.

8. The feeding device according to any one of claims 1 to 4, wherein:

the feeding device also comprises a bearing piece, and the transmission piece is rotatably matched with the feeding shell through the bearing piece;

or,

the feeding device further comprises a bearing piece, a first oil seal piece and a second oil seal piece, the transmission piece is rotatably matched with the feeding shell through the bearing piece, the first oil seal piece and the second oil seal piece are all sleeved outside the transmission piece and located on two sides of the bearing piece and respectively connected with the corresponding position of the feeding shell.

9. A seeding device, comprising:

the feed device of any one of claims 1 to 8;

and the spreading device is arranged on the feeding shell, communicated with the outlet and used for spreading the materials output from the outlet.

10. An unmanned aerial vehicle comprising a feeding device as claimed in any one of claims 1 to 8, or comprising a sowing apparatus as claimed in claim 9.

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