Sowing machine for agricultural unmanned aerial vehicle

Abstract

The utility model relates to the technical field of agricultural unmanned aerial vehicles, and discloses a sowing machine for an agricultural unmanned aerial vehicle, which comprises an unmanned aerial vehicle main body, two sides of the unmanned aerial vehicle main body are fixedly connected with fixing plates, the upper parts of the fixing plates are fixedly connected with fixing blocks, the upper ends of the fixing blocks are rotatably connected with propellers through bearings, and the propellers are fixedly connected with the unmanned aerial vehicle main body. A sowing mechanism is arranged at the bottom of the unmanned aerial vehicle main body, a buffering and damping mechanism is arranged at the bottom of the unmanned aerial vehicle main body, and two supporting frames are arranged at the lower end of the buffering and damping mechanism. According to the sowing machine for the agricultural unmanned aerial vehicle, the sowing mechanism is arranged, the sowing amount of seeds is precisely regulated and controlled, so that the seeds are sown more uniformly, seed waste is prevented, the germination rate of the seeds is increased, the buffering and damping mechanism is arranged, the stability of the sowing machine during taking off and landing is improved, meanwhile, the sowing machine is protected, and the sowing efficiency is improved. And the service life of the sowing machine is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural unmanned aerial vehicles, in particular to a spreader used for agricultural unmanned aerial vehicles. Background Art

[0002] Unmanned aerial vehicle, abbreviated as "UAV", is an unmanned aircraft controlled by radio remote control equipment and self-contained program control devices, or operated completely or intermittently autonomously by an on-board computer. Compared with manned aircraft, UAVs are often more suitable for tasks that are too "dull, dirty or dangerous". UAVs can be divided into military and civilian use according to their application areas. In the military, UAVs are divided into reconnaissance aircraft and target aircraft. In the civilian field, UAVs plus industry applications are the real rigid demand for UAVs. Their applications in aerial photography, agriculture, plant protection, micro selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying and mapping, news reporting, power inspections, disaster relief, film and television shooting, creating romance, etc. have greatly expanded the use of UAVs themselves. Developed countries are also actively expanding industry applications and developing UAV technology.

[0003] According to the Chinese patent publication number CN 218499562 U, an agricultural drone sowing disc is disclosed, including a drone body, a frame, a material box and a propeller, a landing gear and a servo motor are arranged under the frame, a rotating shaft and a spline shaft are arranged at one end of the servo motor, a limit plate and a magnet block are arranged on the outside of the open part of the material box, a limit groove mutually matched with the magnet block is arranged between the landing gears, a sowing elbow and a bottom mounting cavity are arranged under the material box, a spline bearing in the bottom mounting cavity is mutually matched with the spline shaft, and a scraper is arranged outside the rotating shaft through a connecting rod. In the utility model, the scraper rotates with the rotating shaft to realize the opening and closing of the sowing elbow pipe at the bottom of the material box, so that the material enters the sowing elbow pipe for uniform sowing, the spline shaft arranged under the rotating shaft is mutually matched with the spline bearing arranged in the bottom mounting cavity in the material box, and the limit plate on the outside of the material box and the limit groove between the landing gear are connected by bolts and threads, which is convenient for disassembly and assembly, greatly meeting the use requirements.

[0004] However, it is not convenient for the agricultural UAV to accurately control the seed sowing amount during sowing, which will cause uneven seed sowing, waste of seeds, and affect the germination rate of seeds. At the same time, the agricultural UAV does not have a stable buffer and shock-absorbing mechanism to protect it during takeoff and landing, which affects the stability of the UAV. For this reason, we propose a spreader for agricultural UAVs. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a spreader for an agricultural drone.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spreader for an agricultural UAV, comprising a UAV main body, fixed plates are fixedly connected on both sides of the UAV main body, fixed blocks are fixedly connected above the fixed plates, the upper end of the fixed block is rotatably connected to a propeller through a bearing, the number of the fixed plates, the fixed blocks and the propellers are all four and are symmetrically arranged on both sides of the UAV main body, a spreading mechanism is arranged at the bottom of the UAV main body, a buffering and shock-absorbing mechanism is arranged at the bottom of the UAV main body, a support frame is arranged at the lower end of the buffering and shock-absorbing mechanism, and the number of the support frames is two.

[0009] Preferably, a protective baffle is fixedly connected to the upper part of the fixing plate, and the protective baffle is arranged on the outer side of the propeller. There are four protective baffles, and the protective baffle is arranged to protect the propeller and prevent the propeller from being hit.

[0010] Preferably, the sowing mechanism includes a sowing frame, a feeding hopper, a vibration motor, a hydraulic cylinder, a connecting plate, a discharge barrel and a partition, the sowing frame is fixedly installed at the bottom of the drone body, the feeding hopper is fixedly connected to the front of the sowing frame and the feeding hopper is connected to the inside of the sowing frame, and the vibration motor is fixedly installed on the front of the sowing frame. The sowing frame is vibrated by the vibration motor to facilitate sowing.

[0011] Preferably, the hydraulic cylinder is fixedly mounted on the top of the inner wall of the sowing frame, the lower end of the hydraulic cylinder is fixedly connected to the connecting plate, the discharging barrel is fixedly mounted below the four end points of the connecting plate and the number of the discharging barrels is four, the discharging barrel is movably connected to the through hole opened in the bottom of the sowing frame, the partition is fixedly connected to the inner wall of the discharging barrel, and several of the partitions are evenly arranged on the inner side of the discharging barrel. By starting the hydraulic cylinder, the connecting plate is driven to move, and the discharging barrel is driven to move up and down at the same time, and sowing is carried out in cooperation with the vibration motor.

[0012] Preferably, the buffer shock-absorbing mechanism includes a connecting tube, a connecting block, a damping block, a buffer spring, an upper connecting rod and a lower connecting rod, the connecting tube is arranged below the drone body, the connecting block is fixedly connected to the inner wall of the connecting tube, the damping block is arranged inside the connecting tube and the side of the damping block contacts the inner wall of the connecting tube, the two ends of the buffer spring are respectively fixedly connected to the connecting block and the damping block and the number of the buffer springs is six, the damping block and the buffer spring are symmetrically arranged on both sides of the connecting block, the two ends of the upper connecting rod are respectively fixedly connected to the bottom of the drone body and the damping block, the two ends of the lower connecting rod are respectively fixedly connected to the top of the support frame and the damping block, a buffer shock-absorbing mechanism is arranged, the vibration is buffered by the buffer spring, and the side of the damping block rubs against the inner wall of the connecting tube to perform damping and shock absorption.

[0013] Preferably, the number of the buffer shock absorbing mechanisms is four and they are evenly arranged at the four corners of the bottom of the drone body. The four buffer shock absorbing mechanisms are arranged to improve the stability of the drone.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a spreader for agricultural drones, which has the following beneficial effects:

[0016] 1. This kind of seed spreader for agricultural drones can precisely control the seed spreading amount by setting a spreading mechanism, so that the seeds are spread more evenly, the waste of seeds is prevented, and the germination rate of seeds is improved.

[0017] 2. The spreader for agricultural drones is provided with a buffering and shock-absorbing mechanism to provide buffering and shock-absorbing for the spreader, thereby improving the stability of the spreader during take-off and landing, while protecting the spreader and increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model in side section;

[0021] Figure 3 It is an enlarged view of point A of the utility model;

[0022] Figure 4 This is a front cross-sectional structural diagram of the buffer and shock absorbing mechanism of the utility model;

[0023] Figure 5 It is an enlarged view of point B of the present utility model.

[0024] In the figure: 1. UAV body; 2. fixing plate; 3. fixing block; 4. propeller; 5. protective baffle; 6. sowing mechanism; 601. sowing frame; 602. feeding hopper; 603. vibration motor; 604. hydraulic cylinder; 605. connecting plate; 606. discharging barrel; 607. partition; 7. buffer shock absorbing mechanism; 701. connecting barrel; 702. connecting block; 703. damping block; 704. buffer spring; 705. upper connecting rod; 706. lower connecting rod; 8. support frame. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1

[0027] like Figure 1-5 As shown, the utility model provides a spreader for an agricultural UAV, including a UAV body 1, fixed plates 2 are fixedly connected on both sides of the UAV body 1, fixed blocks 3 are fixedly connected above the fixed plates 2, the upper ends of the fixed blocks 3 are rotatably connected to propellers 4 through bearings, the number of the fixed plates 2, the fixed blocks 3 and the propellers 4 are all four and are symmetrically arranged on both sides of the UAV body 1, a spreading mechanism 6 is arranged at the bottom of the UAV body 1, a buffering and shock-absorbing mechanism 7 is arranged at the bottom of the UAV body 1, a support frame 8 is arranged at the lower end of the buffering and shock-absorbing mechanism 7, and the number of the support frames 8 is two.

[0028] A protective baffle 5 is fixedly connected to the upper side of the fixing plate 2. The protective baffle 5 is arranged on the outer side of the propeller 4 and there are four protective baffles 5. The protective baffle 5 is arranged to protect the propeller 4 and prevent the propeller 4 from being hit.

[0029] The sowing mechanism 6 includes a sowing frame 601, a feeding hopper 602, a vibration motor 603, a hydraulic cylinder 604, a connecting plate 605, a discharge barrel 606 and a partition 607. The sowing frame 601 is fixedly installed at the bottom of the UAV body 1, the feeding hopper 602 is fixedly connected to the front of the sowing frame 601 and the feeding hopper 602 is connected to the inside of the sowing frame 601. The vibration motor 603 is fixedly installed on the front of the sowing frame 601. The sowing frame 601 is vibrated by the vibration motor 603 to facilitate sowing.

[0030] The hydraulic cylinder 604 is fixedly installed on the top of the inner wall of the sowing frame 601, and the lower end of the hydraulic cylinder 604 is fixedly connected to the connecting plate 605. The discharge barrel 606 is fixedly installed below the four end points of the connecting plate 605, and the number of the discharge barrels 606 is four. The discharge barrel 606 is movably connected to the through hole opened at the bottom of the sowing frame 601, and the partition 607 is fixedly connected to the inner wall of the discharge barrel 606. Several partitions 607 are evenly arranged on the inner side of the discharge barrel 606. By starting the hydraulic cylinder 604, the connecting plate 605 is driven to move, and at the same time, the discharge barrel 606 is driven to move up and down, and the vibration motor 603 is cooperated for sowing.

[0031] In this embodiment, by providing a sowing mechanism 6, the sowing amount of seeds is precisely regulated, so that the seeds are sown more evenly, the waste of seeds is prevented, and the germination rate of seeds is improved.

[0032] Example 2

[0033] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the buffer shock absorbing mechanism 7 includes a connecting tube 701, a connecting block 702, a damping block 703, a buffer spring 704, an upper connecting rod 705 and a lower connecting rod 706, the connecting tube 701 is arranged below the drone body 1, the connecting block 702 is fixedly connected to the inner wall of the connecting tube 701, the damping block 703 is arranged inside the connecting tube 701 and the side of the damping block 703 is in contact with the inner wall of the connecting tube 701, and the two ends of the buffer spring 704 are respectively connected to the connecting tube 701. The connecting block 702 and the damping block 703 are fixedly connected and the number of the buffer springs 704 is six. The damping blocks 703 and the buffer springs 704 are symmetrically arranged on both sides of the connecting block 702. The two ends of the upper connecting rod 705 are respectively fixedly connected to the bottom of the drone body 1 and the damping block 703. The two ends of the lower connecting rod 706 are respectively fixedly connected to the top of the support frame 8 and the damping block 703. A buffer shock absorbing mechanism 7 is provided. The vibration is buffered by the buffer springs 704. The side of the damping block 703 rubs against the inner wall of the connecting tube 701 to perform damping and shock absorption.

[0034] There are four buffer shock absorbing mechanisms 7 which are evenly arranged at the four corners of the bottom of the drone body 1. The four buffer shock absorbing mechanisms 7 improve the stability of the drone.

[0035] In this embodiment, the buffering and shock absorbing mechanism 7 is provided to buffer and absorb shock of the spreader, thereby improving the stability of the spreader during take-off and landing, and at the same time protecting the spreader, thereby increasing the service life of the spreader.

[0036] The following is a detailed description of the working principle of this spreader used for agricultural drones.

[0037] like Figure 1-5 As shown, when in use, seeds are put into the feeding hopper 602, and the vibration motor 603 is started to drive the sowing frame 601 to vibrate, so that the seeds in the sowing frame 601 enter the discharge barrel 606 and are distributed between the partitions 607, and the hydraulic cylinder 604 is started to drive the connecting plate 605 to move, so that the discharge barrel 606 moves downward, and under the action of the vibration motor 603, the seeds between the partitions 607 are shaken out, and the spacing of the partitions 607 is convenient for controlling the seed sowing amount; when the spreader is taking off or being vibrated, the upper connecting rod 705 and the lower connecting rod 706 are close to each other, the damping block 703 and the inner wall of the connecting barrel 701 rub to damp and reduce shock, and the buffer spring 704 is compressed to buffer the vibration, thereby protecting the spreader.

Claims

1. A spreader for an agricultural drone, comprising a drone body (1), characterized in that: The drone body (1) is fixedly connected to fixing plates (2) on both sides, a fixing block (3) is fixedly connected to the top of the fixing plate (2), the upper end of the fixing block (3) is rotatably connected to a propeller (4) via a bearing, the fixing plates (2), the fixing blocks (3) and the propeller (4) are all four in number and are symmetrically arranged on both sides of the drone body (1), the bottom of the drone body (1) is provided with a spreading mechanism (6), the bottom of the drone body (1) is provided with a buffering and shock absorbing mechanism (7), the lower end of the buffering and shock absorbing mechanism (7) is provided with a supporting frame (8), and the number of the supporting frames (8) is two; The sowing mechanism (6) comprises a sowing frame (601), a hopper (602), a vibration motor (603), a hydraulic cylinder (604), a connecting plate (605), a discharging cylinder (606) and a partition (607); the sowing frame (601) is fixedly mounted on the bottom of the drone body (1); the hopper (602) is fixedly connected to the front of the sowing frame (601) and the hopper (602) is connected to the inside of the sowing frame (601); and the vibration motor (603) is fixedly mounted on the front of the sowing frame (601); The buffer shock absorbing mechanism (7) comprises a connecting tube (701), a connecting block (702), a damping block (703), a buffer spring (704), an upper connecting rod (705) and a lower connecting rod (706); the connecting tube (701) is arranged below the drone body (1); the connecting block (702) is fixedly connected to the inner wall of the connecting tube (701); the damping block (703) is arranged inside the connecting tube (701) and the side surface of the damping block (703) is in contact with the inner wall of the connecting tube (701); The two ends of the buffer spring (704) are respectively fixedly connected to the connecting block (702) and the damping block (703), and the number of the buffer springs (704) is six. The damping block (703) and the buffer spring (704) are symmetrically arranged on both sides of the connecting block (702). The two ends of the upper connecting rod (705) are respectively fixedly connected to the bottom of the drone body (1) and the damping block (703), and the two ends of the lower connecting rod (706) are respectively fixedly connected to the top of the support frame (8) and the damping block (703).

2. A spreader for an agricultural drone according to claim 1, characterized in that: A protective baffle (5) is fixedly connected to the upper portion of the fixing plate (2); the protective baffle (5) is arranged on the outer side of the propeller (4), and the number of the protective baffles (5) is four.

3. A spreader for an agricultural drone according to claim 2, characterized in that: The hydraulic cylinder (604) is fixedly mounted on the top of the inner wall of the sowing frame (601), the lower end of the hydraulic cylinder (604) is fixedly connected to the connecting plate (605), the discharging barrel (606) is fixedly mounted below the four end points of the connecting plate (605), and the number of the discharging barrels (606) is four, the discharging barrel (606) is movably connected to the through hole opened at the bottom of the sowing frame (601), the partition (607) is fixedly connected to the inner wall of the discharging barrel (606), and a plurality of the partitions (607) are evenly arranged on the inner side of the discharging barrel (606).

4. A spreader for an agricultural drone according to claim 3, characterized in that: The number of the buffer shock absorbing mechanisms (7) is four and they are evenly arranged at the four corners of the bottom of the drone body (1).

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