Sowing device of plant protection unmanned aerial vehicle

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a sowing device of a plant protection unmanned aerial vehicle, which comprises an unmanned aerial vehicle body, a storage bin, a discharge barrel, a material scattering disc and a material scattering mechanism, the top of the storage bin is open, a cover plate is arranged to seal the storage bin, the bottom of the storage bin is connected with a discharging barrel, discharging ports are symmetrically formed in the two sides of the surface of the discharging barrel, and the opening sizes of the discharging ports are adjusted through cooperation of an arc-shaped gate and a control motor. A material dispersing motor is fixed to the bottom of the discharging barrel and drives a material dispersing disc to rotate, and material dispersing blades are evenly distributed on the surface of the material dispersing disc and used for evenly throwing materials. A rotating shaft is arranged in the center of the top of the material scattering disc and connected with a swash plate which drives a material scattering mechanism to move up and down to dredge materials. The material dredging mechanism comprises a sliding rod, a material dredging conical head, an extrusion ball head and a spring, and the sliding rod keeps making contact with the swash plate through the spring so as to achieve continuous dredging; the device provides stable supporting through the supporting legs, prevents the bulk material disc from making contact with the ground, and has the advantages of being high in sowing precision, convenient to operate and efficient in dredging.

Description

TECHNICAL FIELD

[0001] The utility model belongs to unmanned plane technical field, concretely relates to a kind of sowing device of plant protection unmanned plane. BACKGROUND

[0002] Plant protection unmanned plane as a kind of technical equipment widely used in modern agriculture, can efficiently complete farmland operation, such as spraying pesticide, sowing seed and fertilization etc. task. Especially in sowing field, using plant protection unmanned plane can realize accurate, efficient material delivery, to improve agricultural production efficiency. However, the common unmanned plane sowing device on the market still has some technical bottlenecks in performance and control accuracy.

[0003] The existing unmanned plane sowing device mostly adopts single sowing mode, material is directly scattered by gravity or simple mechanical device. This kind of device usually lacks accurate control function to the size of discharge opening, leading to uneven distribution of material in actual sowing process, especially when sowing direction or coverage boundary area needs to be adjusted, the prior art cannot effectively avoid material waste. In addition, the traditional device has poor dredging effect when material is blocked, often needs manual intervention, which not only increases the operation difficulty, but also reduces the operation efficiency. SUMMARY

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a kind of sowing device of plant protection unmanned plane, it can realize, can efficiently adjust the size of discharge opening, accurate control sowing direction, and simultaneously have the sowing device of automatic dredging function.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A kind of sowing device of plant protection unmanned plane, including unmanned plane body, the inside of unmanned plane body is provided with storage bin, the inside of storage bin is hollow, top is open, the top of storage bin is installed with cover plate, the cover plate is sealed to the size of discharge opening of storage bin top, the bottom of storage bin is provided with discharge cylinder, the surface of discharge cylinder is symmetrically provided with discharge opening on both sides, two described discharge openings are all with the inside of discharge cylinder, the surface of discharge cylinder is provided with receiving arc groove above, the receiving arc groove is placed above discharge opening, the inside of receiving arc groove is slidably installed with arc gate, the inside of receiving arc groove is fixed with control motor above, control motor output end is installed with screw rod, screw rod is screwed into the inside of arc gate, two described arc gates are used to control the size of discharge opening of two discharge openings respectively, the inside of discharge cylinder is provided with support frame laterally, the surface of support frame is provided with dredging mechanism.

[0007] Further, the bottom center of the discharge cylinder is fixed with a material scattering motor, an output end of the material scattering motor is installed with a scattering disc, the scattering disc corresponds to the height of the discharge port, and scattering blades are uniformly arranged on the surface of the scattering disc.

[0008] Further, the top center of the scattering disc is provided with a rotating shaft, the rotating shaft rotates on the lower surface of the support frame, and the surface of the rotating shaft is fixed with a swash plate.

[0009] Further, the material scattering mechanism comprises a plurality of slide rods vertically sliding on the surface of the support frame, the top of the slide rod is provided with a material scattering cone, and the material scattering cone is used for dredging the internal material.

[0010] Further, the bottom of the slide rod is provided with a pressing ball head, the bottom arc surface of the pressing ball head is in contact with the upper surface of the swash plate, a spring is arranged on the surface of the slide rod, the top of the spring is in contact with the lower surface of the support frame, and the bottom of the spring is in contact with the lower surface of the pressing ball head.

[0011] Further, the bottom of the unmanned aerial vehicle body is symmetrically provided with supporting legs, and the material scattering motor is higher than the bottom of the supporting leg.

[0012] Compared with the prior art, the device has the advantages that:

[0013] Firstly, the sealing protection of the material is realized by the cover plate arranged on the top of the storage bin, so that the problems of material spilling or pollution caused by the open design in the traditional spreading device are avoided; the accurate adjustment of the opening size of the discharge port is realized by the cooperation of the arc-shaped gate and the control motor on the top of the discharge cylinder, so that the problem of insufficient spreading precision in the existing device is effectively solved; at the same time, the opening direction of the discharge port is controlled, the unilateral spreading function is realized, the waste of material in the boundary area is avoided, and the flexibility and economy of the operation are improved.

[0014] Secondly, the scattering disc is arranged at the bottom of the discharge cylinder, the scattering disc is driven to rotate by the material scattering motor, and the uniform scattering of the material is realized by the structural design of the scattering blades; the scattering disc corresponds to the height of the discharge port, so that the uniformity of the material spreading is effectively improved, and the defects of the limited spreading range and uneven distribution of the material in the traditional device are overcome; the design of the scattering disc ensures that the spreading device can maintain stable spreading performance under various flight conditions.

[0015] In addition, the material scattering mechanism is innovatively arranged in the discharge cylinder, the slide rod is driven to move up and down by the rotation of the swash plate, the material is dredged by the material scattering cone, the problems of material accumulation or blockage in the traditional device are solved; the contact design of the pressing ball head at the bottom of the slide rod and the swash plate, in cooperation with the reset force provided by the spring, enables the material scattering mechanism to work continuously, reduces manual intervention, and improves the working efficiency and reliability of the device.

[0016] Finally, by the bottom of the unmanned aerial vehicle symmetrical design of the leg, for the device provides stable support, ensure that the bulk material motor and bulk material disc in the flight process away from the ground, avoid the risk of damage due to contact with the ground work parts; the reasonable height design of the leg ensures the safety of the device during take-off and landing and working, provides protection for the efficient operation of the plant protection unmanned aerial vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the utility model;

[0018] Figure 2 is a front view of the utility model;

[0019] Figure 3 is a perspective view of the storage bin of the utility model;

[0020] Figure 4 is a cross-sectional view of the discharge cylinder of the utility model;

[0021] Figure 5 is a discharge cylinder structure diagram of the utility model;

[0022] Figure 6 is a front view of the utility model; Figure 4

[0023] Figure 7 is a schematic view of the arc gate structure of the utility model;

[0024] Figure 8 is a front view of the utility model; Figure 6

[0025] In the drawings, the components represented by each reference numeral are listed as follows:

[0026] 1, unmanned aerial vehicle body; 11, storage bin; 12, leg; 13, discharge cylinder; 14, discharge port; 15, storage arc groove; 16, control motor; 17, arc gate; 18, support frame; 2, cover plate; 3, bulk material motor; 4, bulk material disc; 41, bulk material blade; 42, shaft; 43, inclined disc; 5, slide bar; 51, material cone; 52, extrusion ball head; 6, spring. DETAILED DESCRIPTION

[0027] In order to make the purpose and advantages of the utility model more clear and obvious, the utility model is specifically described below in conjunction with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the specific protection range requested by the utility model.

[0028] Reference Figures 1-8 ​​As shown, a kind of planting protection unmanned plane's spreading device, including unmanned plane body 1, the inside of unmanned plane body 1 is provided with storage bin 11, storage bin 11 is hollow structure, top is open, storage bin 11 top is equipped with cover plate 2, cover plate 2 is sealed to the top opening of storage bin 11 by buckle structure or screw connection, to prevent material from spilling or being contaminated by outside when flying;Storage bin 11 bottom is provided with discharge cylinder 13, discharge cylinder 13 is cylindrical structure, surface two sides are symmetrically provided with discharge port 14, two discharge ports 14 are all with the inside of discharge cylinder 13 through, ensure that material can be smoothly discharged from discharge cylinder 13;Discharge cylinder 13 surface top is provided with the receiving arc groove 15, receiving arc groove 15 is arc track structure, place in the directly above of discharge port 14, for installing and sliding control arc-shaped gate 17;Arc-shaped gate 17 is slidably installed in receiving arc groove 15, arc-shaped gate 17 is slidably matched with discharge cylinder 13 by receiving arc groove 15 to adjust the opening degree of discharge port 14;Control motor 16 is fixed in receiving arc groove 15 inside top, and its output end is equipped with screw rod, and screw rod is screwed into the threaded hole in the inside of arc-shaped gate 17, and control motor 16 drives screw rod to rotate and drives arc-shaped gate 17 to slide up and down along receiving arc groove 15, so as to realize the separate accurate control of the opening size of two discharge ports 14 respectively;Discharge cylinder 13 inside is provided with support frame 18 transversely, and support frame 18 is small in width to reduce the obstruction to falling material, and support frame 18 surface is fixedly connected with material loosening mechanism, to solve the problem of material accumulation or blockage.

[0029] Reference Figures 3-6 As shown, discharge cylinder 13 bottom center is fixedly installed with the material scattering motor 3, the material scattering motor 3 is fixed on the support table on the bottom of the discharge cylinder 13 by screw, and the output end is connected with the material scattering disc 4 through the connecting shaft, the material scattering disc 4 is disc-shaped structure, and the height is consistent with the discharge port 14, for receiving falling material;A plurality of material scattering blades 41 are evenly distributed on the surface of the material scattering disc 4, the material scattering blades 41 are curved blade structures, and are arranged at intervals, so that the material can be uniformly scattered around by centrifugal force when the material scattering disc 4 rotates at high speed;The design of the material scattering disc 4 can ensure the coverage range and uniformity of material spreading.

[0030] Reference Figure 1 、 Figure 6 And Figure 8 As shown, the top center of the material scattering disc 4 is provided with a rotating shaft 42, the rotating shaft 42 is a hollow shaft, and the top is rotatably connected to the lower surface of the support frame 18 through a rolling bearing, the rotating shaft 42 is fixedly connected with the material scattering disc 4, so that the material scattering disc 4 rotates synchronously under the drive of the material scattering motor 3;The surface of the rotating shaft 42 is fixed with a swash plate 43, the swash plate 43 is an inclined surface structure, for driving the slide rod 5 of the material loosening mechanism to move periodically up and down.

[0031] Reference Figure 6And Figure 8 As shown, the material loosening mechanism includes a plurality of slide rods 5 slidingly mounted on the surface of the support frame 18 in the vertical direction, the slide rod 5 is a columnar structure, the surface is wear-resistant treated, and can freely slide in the slide groove inside the support frame 18; the top of the slide rod 5 is provided with a tapered material loosening cone head 51, which is used for loosening the material in the storage bin 11 to prevent the material from being blocked at the discharge port 14; the bottom of the slide rod 5 is fixedly provided with an extrusion ball head 52, which is a spherical surface structure, the bottom arc surface thereof is in contact with the upper surface of the swash plate 43, the setting of the extrusion ball head 52 can reduce the contact area with the swash plate 43, thereby reducing the friction, and when the swash plate 43 rotates, the slide rod 5 can be driven to reciprocatingly slide up and down by the extrusion ball head 52; the surface of the slide rod 5 is sleeved with a spring 6, which is a compression spring structure, the top of the spring 6 is in contact with the lower surface of the support frame 18, and the bottom of the spring 6 is in contact with the lower surface of the extrusion ball head 52, so as to provide a downward reset force, and ensure that the slide rod 5 and the surface of the swash plate 43 always remain in contact.

[0032] Reference Figure 1 And Figure 2 As shown, the unmanned aerial vehicle body 1 is symmetrically provided with a plurality of supporting legs 12 at the bottom, the supporting leg 12 is a folding structure, and can provide stable support when the unmanned aerial vehicle takes off and lands; the height of the supporting leg 12 is designed to be higher than the bottom of the supporting leg 12, so that the material distribution disc 4 is not in contact with the ground when working, and the normal operation and safety of the device are ensured.

[0033] The working principle of the utility model is as follows: the material to be sown is poured into the inside of the storage bin 11 through the top open, and the top opening is sealed by the cover plate 2, the control motor 16 on the two sides can drive the screw rod to rotate, so that it cooperates with the internal thread hole of the arc-shaped gate 17 to realize the adjustment of the height of the arc-shaped gate 17, then the size of the discharge port 14 is controlled, and the speed of the material distribution is controlled by the rotating speed of the material distribution motor 3, when sowing to the edge, the 7 on the outside can be closed, so that the device only sows to the other side, and the sowing direction is convenient to control.

[0034] When sowing, the material distribution motor 3 can drive the material distribution disc 4 to rotate, the rotation of the material distribution disc 4 can scatter the material falling into the gap of the material distribution blade 41, in the process of the rotation of the material distribution disc 4, the rotating shaft 42 also rotates, and the swash plate 43 rotates at this time, due to the existence of the spring 6, the extrusion ball head 52 has a downward force, and then the extrusion ball head 52 always maintains contact with the upper surface of the swash plate 43, and when the swash plate 43 rotates, the two slide rods 5 can be driven to reciprocatingly move up and down, so that the material loosening cone head 51 loosens the internal material up and down.

[0035] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application. Structures, devices and operation methods not specifically described and explained in the present application are implemented according to conventional means in the art, unless otherwise specified and limited.

Claims

1. A spraying device of an agricultural unmanned aerial vehicle, comprising an unmanned aerial vehicle body (1), characterized in that: The inside of the unmanned aerial vehicle body (1) is provided with a storage bin (11), the inside of the storage bin (11) is hollow, the top of the storage bin (11) is open, a cover plate (2) is installed on the top of the storage bin (11), the cover plate (2) seals the open top of the storage bin (11), a discharge cylinder (13) is arranged at the bottom of the storage bin (11), discharge ports (14) are symmetrically arranged on the surface of the discharge cylinder (13), the discharge ports (14) are in communication with the inside of the discharge cylinder (13), a receiving arc groove (15) is arranged on the surface of the discharge cylinder (13), the receiving arc groove (15) is arranged above the discharge port (14), arc-shaped gates (17) are slidably installed in the receiving arc groove (15), a control motor (16) is fixedly arranged inside the receiving arc groove (15), a screw rod is installed on the output end of the control motor (16), the screw rod is screwed into the arc-shaped gate (17), and the two arc-shaped gates (17) are used for controlling the opening size of the two discharge ports (14).

2. The spraying device of the plant protection unmanned aerial vehicle according to claim 1, characterized in that: A discharge cylinder (13) is arranged at the bottom of the discharge cylinder (13), a discharge motor (3) is fixedly arranged at the center of the discharge cylinder (13), a discharge disc (4) is installed on the output end of the discharge motor (3), the height of the discharge disc (4) corresponds to the height of the discharge port (14), and discharge blades (41) are uniformly arranged on the surface of the discharge disc (4).

3. The spraying device of the plant protection unmanned aerial vehicle according to claim 2, characterized in that: A rotating shaft (42) is arranged at the top center of the discharge disc (4), the rotating shaft (42) is rotatably arranged on the lower surface of the support frame (18), and a swash plate (43) is fixedly arranged on the surface of the rotating shaft (42).

4. The spraying device of the plant protection unmanned aerial vehicle according to claim 3, characterized in that: The material loosening mechanism comprises a plurality of slide rods (5) vertically sliding on the surface of the support frame (18), a material loosening cone head (51) is arranged at the top of the slide rod (5), and the material loosening cone head (51) is used for loosening the internal material.

5. The spraying device of the plant protection unmanned aerial vehicle according to claim 4, characterized in that: An extrusion ball head (52) is arranged at the bottom of the slide rod (5), the bottom arc surface of the extrusion ball head (52) is in contact with the upper surface of the swash plate (43), a spring (6) is sleeved on the surface of the slide rod (5), the top of the spring (6) is in contact with the lower surface of the support frame (18), and the bottom of the spring (6) is in contact with the lower surface of the extrusion ball head (52).

6. The spraying device of the plant protection unmanned aerial vehicle according to claim 2, characterized in that: The bottom of the unmanned aerial vehicle body (1) is symmetrically provided with supporting legs (12), and the discharge motor (3) is higher than the bottom of the supporting leg (12).

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