spreader

Abstract

The application belongs to the technical field of plant protection unmanned aerial vehicle, and discloses a spreader, which comprises a shell, a driving device, a first output shaft, a spreading disc and a first anti-winding part. The driving device is installed on the shell, and the driving end of the driving device is connected with one end of the first output shaft. The first output shaft is located in the shell. The spreading disc is in transmission connection with the other end of the first output shaft. The first anti-winding part is a flexible part and is sleeved on the outside of the first output shaft. Thus, the probability of the first output shaft being stuck due to wire winding is reduced, and the normal use of the spreader is ensured.

Description

Technical Field

[0001] This invention relates to the field of agricultural drone technology, and more particularly to a seeder. Background Technology

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control equipment and their own program control devices. In agriculture, UAVs are called agricultural plant protection UAVs. They perform seeding operations via ground remote control or GPS flight control, and can spread pesticides, seeds, powders, etc. Due to their small size, light weight, vertical takeoff and landing capabilities, and flexible flight control, material spreading UAVs are highly adaptable to different regions, plots, and crops, and therefore have broad application prospects.

[0003] The material spreader mainly consists of a housing, motor, reducer, and spreading disc. The reducer has an output shaft located inside the housing, while the spreading disc is located outside the housing and fixed to the output shaft. Driven by the motor, the output shaft rotates the spreading disc to spread the material falling from the housing onto the spreading disc. During the spreading operation, debris such as filaments in the material can easily become entangled on the output shaft. Over time, this can easily cause the output shaft to jam, thus affecting the normal operation of the material spreader.

[0004] Therefore, there is an urgent need to develop a seeder to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a spreader that can reduce the probability of the first output shaft jamming due to wire entanglement.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The spreader includes a housing, a drive unit, a first output shaft, a spreading disc, and a first anti-winding component. The drive unit is mounted on the housing, and the drive end of the drive unit is connected to one end of the first output shaft. The first output shaft is placed inside the housing, and the spreading disc is connected to the other end of the first output shaft. The first anti-winding component is a flexible component and is sleeved on the outside of the first output shaft.

[0008] Optionally, the housing includes a feeding housing and a discharging housing, which are detachably connected. The first output shaft is placed inside the feeding housing. The spreader also includes a drive shaft with a first end and a second end, which is placed inside the discharging housing. The first end is detachably connected to the first output shaft, and the second end is connected to the spreading disc.

[0009] Optionally, the spreader also includes a second anti-winding component, which is a flexible component and is sleeved on the drive shaft.

[0010] Optionally, the drive device includes a motor and a reducer. The drive end of the motor is connected to the input end of the reducer. The reducer is a coaxial double-output reducer. The spreader also includes a second output shaft and a shredder. The first output shaft and the second output shaft are both located at the output end of the reducer. The second output shaft is sleeved on the outside of the first output shaft. The shredder is located on the second output shaft. The first anti-winding component is sleeved on the second output shaft.

[0011] Optionally, the shredder includes a blade and a fixing part, the blade is disposed on the fixing part, the fixing part is sleeved on the second output shaft, and the end of the first anti-winding member near the fixing part is sleeved on the fixing part.

[0012] Optionally, the first end is provided with a connecting groove, the end of the first output shaft near the drive shaft extends out of the second output shaft and is embedded in the connecting groove, and the end of the second anti-winding member near the second output shaft is clamped between the end face of the second output shaft and the end face of the first end.

[0013] Optionally, the spreader also includes a first baffle plate and a second baffle plate, both of which are disposed above the spreading disc and are detachably connected to the feeding housing, and the sum of the areas of the first baffle plate and the second baffle plate is greater than the area of ​​the spreading disc.

[0014] Optionally, at least one of the first baffle plate and the second baffle plate is provided with a matching slot, and the end of the other of the first baffle plate and the second baffle plate is inserted into the matching slot.

[0015] Optionally, the inner wall of the feeding shell is inverted conical.

[0016] Optionally, the spreader also includes an electronic speed control board, with the motor connected to the electronic speed control board via a connecting wire. The electronic speed control board is encapsulated on the side wall of the feed housing.

[0017] Beneficial effects:

[0018] The spreader provided by the present invention has a first anti-winding component sleeved on the outside of the first output shaft. The first anti-winding component is a flexible component. Since it is difficult for the wires to form a stable winding on the flexible component, when the material inside the housing contains wires, the wires are difficult to continuously wind around the first output shaft, thereby reducing the probability of the first output shaft getting stuck due to wire winding and providing a strong guarantee for the normal use of the spreader. Attached Figure Description

[0019] Figure 1 This is a partially exploded schematic diagram of the dispersant provided by the present invention;

[0020] Figure 2 This is a partial structural cross-sectional schematic diagram of the spreader provided by the present invention;

[0021] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle;

[0022] Figure 4 This is an exploded structural diagram of the spreader provided by the present invention;

[0023] Figure 5 yes Figure 4 Enlarged view of a section at point B in the middle;

[0024] Figure 6 This is a schematic diagram of the structure of the feeding housing and gear disk provided by the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the spreader provided by the present invention.

[0026] In the picture:

[0027] 110. First output shaft; 120. Second output shaft; 130. Coaxial sleeve; 200. Spreading disc; 310. First anti-winding component; 320. Second anti-winding component; 410. Feed housing; 411. First connecting hole; 412. Electrical control chamber; 413. Sealing cap; 414. Feed housing body; 415. Feed housing lower cover plate; 420. Discharge housing; 421. Second connecting hole; 422. Discharge port; 500. Drive shaft; 510. First end; 610. Motor; 611. Connecting wire; 620. Reducer; 700. Crusher; 710. Blade; 720. Fixing part; 810. First baffle plate; 820. Second baffle plate; 830. Alignment slot; 920. Gear disk; 921. Opening; 930. Pinion. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0029] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0032] This embodiment provides a spreader that can reduce the probability of the first output shaft jamming due to wire tangling.

[0033] Specifically, such as Figures 1 to 3 As shown, the spreader includes a housing, a drive unit, a first output shaft 110, a spreading disc 200, and a first anti-winding component 310. The top of the housing is provided with a feed inlet, and the bottom of the housing is provided with a discharge outlet 422. The drive unit is mounted on the housing, and the drive end of the drive unit is connected to one end of the first output shaft 110. The first output shaft 110 is placed inside the housing. The spreading disc 200 is located below the discharge outlet 422 and is connected to the other end of the first output shaft 110. The first anti-winding component 310 is a flexible component and is sleeved on the outside of the first output shaft 110.

[0034] The spreader is fitted with a first anti-winding component 310 on the outside of the first output shaft 110. The first anti-winding component 310 is a flexible component. Since it is difficult for the wires to form a stable winding on the flexible component, when the material inside the housing contains wires, the wires are difficult to continuously wind around the first output shaft 110, thereby reducing the probability of the first output shaft 110 getting stuck due to wire winding, and providing a strong guarantee for the normal use of the spreader.

[0035] Optionally, the first anti-winding component 310 may be made of materials such as rubber or carbon fiber.

[0036] Optionally, such as Figures 1 to 3As shown, the housing includes a feeding housing 410 and a discharging housing 420, which are detachably connected. The feeding port is located at the top of the feeding housing 410, and the discharging port 422 is located at the bottom of the discharging housing 420. The first output shaft 110 is placed inside the feeding housing 410. The spreader also includes a drive shaft 500, which has a first end 510 and a second end. The drive shaft 500 is placed inside the discharging housing 420. The first end 510 is detachably connected to the first output shaft 110, and the second end is located outside the discharging housing 420 and connected to the spreading disc 200. This achieves a separate design for both the housing and the connecting shaft (here, the structure after the first output shaft 110 is connected to the drive shaft 500 is considered as the connecting shaft). Compared to designs that only separate the housing or only separate the connecting shaft, designs that separate both the housing and the connecting shaft not only facilitate the disassembly and assembly of the spreader but also facilitate the cleaning and maintenance of the housing and the connecting shaft.

[0037] Optionally, the feed housing 410 and the discharge housing 420 can be detachably connected by bolts, nuts, rivets, or other fasteners, or by a snap-fit ​​assembly or other structure. In this embodiment, for example... Figures 1 to 3 As shown, the feed housing 410 and the discharge housing 420 are respectively provided with a first connecting hole 411 and a second connecting hole 421. The bolt passes through the first connecting hole 411 and the second connecting hole 421 in sequence and is then threadedly connected to the nut.

[0038] Optionally, the first end 510 of the drive shaft 500 and the first output shaft 110 can be detachably connected by means of nesting or connecting pins.

[0039] Furthermore, such as Figures 1 to 4 As shown, the feed housing 410 includes a feed housing body 414 and a feed housing lower cover plate 415. The feed housing lower cover plate 415 has a through hole and is detachably connected to the bottom of the feed housing body 414. This structure realizes a split structure for the feed housing 410. When cleaning and maintaining the feed housing 410, the feed housing body 414 and the feed housing lower cover plate 415 can be cleaned and maintained separately, simplifying the operation of cleaning and maintenance and improving the cleaning and maintenance effect. Optionally, the feed housing body 414 and the feed housing lower cover plate 415 can be detachably connected by bolts, screws, or snap-fit ​​components.

[0040] Optionally, such as Figures 1 to 4 As shown, the spreader also includes a second anti-winding component 320. The second anti-winding component 320 is a flexible component and is sleeved on the drive shaft 500, making it difficult for the wires to continuously wind around the drive shaft 500. This reduces the probability of the drive shaft 500 getting stuck due to wire winding and provides a strong guarantee for the normal use of the spreader.

[0041] Optionally, the second anti-winding component 320 may be made of materials such as rubber or carbon fiber.

[0042] Optionally, such as Figures 1 to 4 As shown, the driving device includes a motor 610 and a reducer 620. The driving end of the motor 610 is connected to the input end of the reducer 620. The reducer 620 is a coaxial double-output reducer. The spreader also includes a second output shaft 120 and a crushing blade 700. The first output shaft 110 and the second output shaft 120 are both located at the output end of the reducer 620. The second output shaft 120 is sleeved on the outside of the first output shaft 110. The crushing blade 700 is mounted on the second output shaft 120. A first anti-winding member 310 is sleeved on the second output shaft 120. The crushing blade 700 has the effect of stirring and crushing the material, preventing... To prevent material from clumping inside the casing and to facilitate material falling, in this embodiment, the reducer 620 is configured as a coaxial dual-output reducer. The first output shaft 110 is connected to the spreading disc 200 via the transmission shaft 500, and the second output shaft 120 is connected to the crushing blade 700. This achieves the effect of different rotational speeds between the spreading disc 200 and the crushing blade 700, thereby improving the mixing and crushing effect of the crushing blade 700 on the material. Furthermore, the structure of the second output shaft 120 being sleeved outside the first output shaft 110 helps to improve the integration of the overall structure of the spreader, thus reducing the overall volume of the spreader. It should be noted that the structure and working principle of the coaxial dual-output reducer are relatively mature existing technologies in the field and will not be described in detail here. It is understood that in other embodiments, the driving device can also be a geared motor 610 or other devices with driving functions.

[0043] Furthermore, such as Figures 1 to 4 As shown, a coaxial sleeve 130 is provided between the first output shaft 110 and the second output shaft 120 to eliminate frictional entanglement caused by eccentric transmission between the first output shaft 110 and the second output shaft 120, thereby avoiding jamming. Optionally, the coaxial sleeve 130 can be made of graphite copper, PEK, PEEK, or ceramic materials.

[0044] Optionally, such as Figures 1 to 4 As shown, the shredder 700 includes a blade 710 and a fixing part 720. The blade 710 is disposed on the fixing part 720, which is sleeved on the second output shaft 120. A first anti-winding member 310 is sleeved on the fixing part 720 at one end near the fixing part 720 to improve the stability of the first anti-winding member 310 on the second output shaft 120. In this embodiment, the blade 710 and the fixing part 720 are an integral structure. Of course, in other embodiments, the blade 710 and the fixing part 720 can also be separate structures, depending on the actual application.

[0045] Optionally, such as Figures 1 to 4 As shown, the end of the first end 510 is provided with a connecting groove. The end of the first output shaft 110 near the transmission shaft 500 extends out of the second output shaft 120 and is embedded in the connecting groove. The end of the second anti-winding member 320 near the second output shaft 120 is clamped between the end face of the second output shaft 120 and the end face of the first end 510 to improve the stability of the second anti-winding member 320 on the transmission shaft 500.

[0046] Optionally, the spreader provided in this embodiment also includes a baffle plate, which is disposed above the spreading disc 200, and the area of ​​the baffle plate is larger than the area of ​​the spreading disc 200. When the spreader spreads material, the spreading disc 200 rotates under the drive of the driving device, and the material in the feeding housing 420 falls onto the rotating spreading disc 200. The material is thrown out of the spreading disc 200 by centrifugal force as the spreading disc 200 rotates. Due to the weight of the material itself, centrifugal force, and the upward reaction force of the spreading disc 200 on the material, the material is inclined upward when it leaves the spreading disc 200. The baffle plate blocks the material thrown upward at an angle, causing the material to change direction and fall downward, thereby reducing the probability of the material contacting the propeller of the spreader rotor, which has the effect of improving the flight safety of the spreader. In the technical solution provided in this embodiment, in order to improve the detachability of the spreader, such as Figures 1 to 4 As shown, the baffle plate includes a first baffle plate 810 and a second baffle plate 820. The first baffle plate 810 and the second baffle plate 820 are both disposed above the spreading disc 200 and are detachably connected to the lower cover plate 415 of the feeding housing. The sum of the areas of the first baffle plate 810 and the second baffle plate 820 is greater than the area of ​​the spreading disc 200, so as to realize the detachable connection between the baffle plate and the feeding housing 410.

[0047] Optionally, the first baffle plate 810 and the second baffle plate 820 are respectively connected to the lower cover plate 415 of the feed housing by two Torx screws. Of course, the first baffle plate 810 and the second baffle plate 820 can also be detachably connected to the lower cover plate 415 of the feed housing by means of rivets or snap-fit ​​components.

[0048] Furthermore, such as Figures 1 to 5As shown, at least one of the first baffle plate 810 and the second baffle plate 820 is provided with a slot 830. The end of the other one of the first baffle plate 810 and the second baffle plate 820 is inserted into the slot 830, which simplifies the assembly and disassembly of the first baffle plate 810 and the second baffle plate 820, facilitates the quick assembly and disassembly of the first baffle plate 810 and the second baffle plate 820, and also improves the stability of the connection between the first baffle plate 810 and the second baffle plate 820. At the same time, the baffle plate is formed by the insertion of the first baffle plate 810 and the second baffle plate 820. This structure not only realizes the split structure design of the baffle plate, but also, compared with the splicing of three or more sub-baffle plates, the structure of splicing only two sub-baffle plates (the sub-baffle plates are the first baffle plate 810 and the second baffle plate 820) is conducive to simplifying the splicing difficulty, facilitating the assembly and disassembly of the baffle plate itself and the assembly and disassembly of the baffle plate and the lower cover plate 415 of the feed housing. In this embodiment, both the first baffle plate 810 and the second baffle plate 820 are provided with a matching slot 830, and the matching slot 830 on the first baffle plate 810 and the matching slot 830 on the second baffle plate 820 are arranged diagonally to improve the stability of the overall structure of the baffle plate after the first baffle plate 810 and the second baffle plate 820 are inserted.

[0049] Optionally, such as Figures 1 to 5 As shown, the inner wall of the feeding shell 420 is inverted conical, which facilitates the downward sliding of materials inside the feeding shell 420 and avoids the problem of material accumulating inside the feeding shell 420 and causing blockage of the discharge port 422.

[0050] Optionally, such as Figures 1 to 7 As shown, the spreader also includes an electronic speed control board (not shown in the figure). The motor 610 is connected to the electronic speed control board via a connecting line 611. The electronic speed control board is encapsulated on the side wall of the feed housing body 414 to achieve a waterproof effect.

[0051] Furthermore, such as Figures 1 to 7As shown, the bottom of the feeding housing 420 is provided with multiple discharge ports 422 spaced apart along its circumference. The spreader also includes a feeding adjustment assembly, which includes a servo motor, a gear disk 920, and a pinion 930. The pinion 930 is mounted on the servo motor shaft. The gear disk 920 is disposed inside the feeding housing 420, and the gear disk 920 has alternating openings 921 and closed openings. The gear disk 920 meshes with the pinion 930. During the rotation of the gear disk 920, the overlap area between the openings 921 on the gear disk 920 and the discharge ports 422 at the bottom of the feeding housing 420 is not... The material feeding adjustment component adjusts the amount of material spread by continuously changing the feed housing body 414. An electric adjustment chamber 412 is provided on the side wall of the feed housing body 414. A pinion 930 is set in the electric adjustment chamber 412. A connecting wire 611 passes through the side wall of the feed housing body 414 and the side wall of the electric adjustment chamber 412 in sequence, and then connects to the electronic speed control board. The electronic speed control board is filled into the hatch of the electric adjustment chamber 412 to form a sealing cap 413. A servo motor is set below the electric adjustment chamber 412. The servo motor wire passes through the electric adjustment chamber 412 from bottom to top and connects to the electronic speed control board to improve the overall waterproof effect of the electric adjustment chamber 412.

[0052] The spreader provided in this embodiment has a detachable connection between the feed housing 410 and the discharge housing 420. Simultaneously, a drive shaft 500 is provided that is connected to the spreading disc 200 and detachably connected to the first output shaft 110. This achieves high detachability of the spreader, facilitating disassembly, cleaning, and maintenance. The structure where the ends of the first baffle plate 810 and / or the second baffle plate 820 are inserted into the slot 830, combined with the structure where the first baffle plate 810 and the second baffle plate 820 are detachably connected to the lower cover plate 415 of the feed housing, further improves the detachability of the spreader and also... The slot 830 enables quick assembly and disassembly of the first baffle plate 810 and the second baffle plate 820, improving their assembly and disassembly efficiency. The first anti-winding component 310 is fitted onto the second output shaft 120, and the second anti-winding component 320 is fitted onto the drive shaft 500, reducing the likelihood of jamming of the second output shaft 120 and / or the drive shaft 500 due to wire entanglement, thus providing strong protection for the normal use of the spreader. The electronic speed control plate is potted at the opening of the electronic speed control chamber 412 to form a sealing cap 413, improving the waterproof effect of the electronic speed control chamber 412.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A spreader, characterized in that, The device includes a housing, a drive unit, a first output shaft (110), a spreading disc (200), and a first anti-winding component (310). The drive unit is mounted on the housing, and the drive end of the drive unit is connected to one end of the first output shaft (110). The first output shaft (110) is placed inside the housing. The spreading disc (200) is connected to the other end of the first output shaft (110). The first anti-winding component (310) is a flexible component and is sleeved on the outside of the first output shaft (110). The housing includes a feeding housing (410) and a discharging housing (420), the feeding housing (410) and the discharging housing (420) being detachably connected. The first output shaft (110) is placed inside the feeding housing (410). The spreader also includes a drive shaft (500), the drive shaft (500) having a first end (510) and a second end, the drive shaft (500) being placed inside the discharging housing (420). The first end (510) is detachably connected to the first output shaft (110), and the second end is connected to the spreading disc (200).

2. The spreader according to claim 1, characterized in that, The spreader also includes a second anti-winding component (320), which is a flexible component and is sleeved on the drive shaft (500).

3. The spreader according to claim 2, characterized in that, The driving device includes a motor (610) and a reducer (620). The driving end of the motor (610) is connected to the input end of the reducer (620). The reducer (620) is a coaxial dual-output reducer. The spreader also includes a second output shaft (120) and a shredder (700). The first output shaft (110) and the second output shaft (120) are both located at the output end of the reducer (620). The second output shaft (120) is sleeved on the outside of the first output shaft (110). The shredder (700) is located on the second output shaft (120). The first anti-winding member (310) is sleeved on the second output shaft (120).

4. The spreader according to claim 3, characterized in that, The shredder (700) includes a blade (710) and a fixing part (720). The blade (710) is disposed on the fixing part (720), and the fixing part (720) is sleeved on the second output shaft (120). The first anti-winding member (310) is sleeved on the fixing part (720) at one end near the fixing part (720).

5. The spreader according to claim 3, characterized in that, The first end (510) is provided with a connecting groove. The end of the first output shaft (110) near the transmission shaft (500) extends out of the second output shaft (120) and is embedded in the connecting groove. The end of the second anti-winding member (320) near the second output shaft (120) is clamped between the end face of the second output shaft (120) and the end face of the first end (510).

6. The spreader according to any one of claims 1-5, characterized in that, The spreader also includes a first baffle plate (810) and a second baffle plate (820). The first baffle plate (810) and the second baffle plate (820) are both disposed above the spreading disc (200) and are detachably connected to the feed housing (410). The sum of the areas of the first baffle plate (810) and the second baffle plate (820) is greater than the area of ​​the spreading disc (200).

7. The spreader according to claim 6, characterized in that, At least one of the first baffle plate (810) and the second baffle plate (820) is provided with a slot (830), and the end of the other of the first baffle plate (810) and the second baffle plate (820) is inserted into the slot (830).

8. The spreader according to any one of claims 1-5, characterized in that, The inner wall of the feeding shell (420) is inverted conical.

9. The spreader according to any one of claims 3-5, characterized in that, The spreader also includes an electronic speed control plate, and the motor (610) is connected to the electronic speed control plate via a connecting line (611). The electronic speed control plate is encapsulated on the side wall of the feed housing (410).

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