A seeding mechanism and a seeding device having the same

Abstract

The application discloses a seeding mechanism and a seeding device with the same, and belongs to the technical field of seeding devices. The seeding mechanism comprises a material box, a negative suction type seed metering device, a launching mechanism and a high-pressure gas supply assembly. The negative suction type seed metering device is connected with the material box in communication. The launching mechanism is connected with the negative suction type seed metering device in communication through a conduit. The high-pressure gas supply assembly is connected with the launching mechanism in communication. The negative suction type seed metering device sequentially and orderly transports the seeds in the material box into the launching mechanism. Under the cooperation of the reciprocating extrusion of the launching mechanism and the high-pressure gas propelling force provided by the high-pressure gas supply assembly, the seeds are launched at a certain speed, quickly fall and enter the soil, so that the seeds are sequentially, precisely and continuously shot into the soil, and the seed burial depth is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of seeding equipment, more particularly to a seeding mechanism and a seeding device with the same. BACKGROUND

[0002] The existing seeding mechanism, especially the seeding mechanism carried by the unmanned aerial vehicle platform, usually adopts the seeding method of scattering, which mainly has the following problems: 1) the seeds are scattered randomly, and it is difficult to ensure the uniformity and orderliness of seeding; 2) the seeding depth cannot be guaranteed and the error is large; 3) the seeding is not precise, which causes the waste of seeds and affects the yield.

[0003] Therefore, it is an urgent problem for those skilled in the art to provide a precise seeding mechanism and a seeding device with the same. SUMMARY

[0004] Therefore, the present application provides a seeding mechanism and a seeding device with the same, which can ensure the uniformity, orderliness and precision of seeding, and the seeding depth.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] A seeding mechanism, comprising a material box, a negative suction seed metering device, a launching mechanism and a high-pressure gas supply assembly, the negative suction seed metering device is connected and communicated with the material box; the launching mechanism is connected and communicated with the negative suction seed metering device through a conduit; and the high-pressure gas supply assembly is connected and communicated with the launching mechanism.

[0007] By adopting the above technical solutions, the present application has the following beneficial effects:

[0008] The negative suction seed metering device orderly delivers the seeds in the material box to the launching mechanism, under the cooperation of the reciprocating extrusion of the launching mechanism and the high-pressure gas propelling force provided by the high-pressure gas supply assembly, the seeds are launched at a certain speed, quickly fall and enter the soil, so as to realize the orderly, precise and continuous shooting of the seeds into the soil, and ensure the seeding depth.

[0009] Further, the negative suction seed metering device comprises a blower, a fan cover, a seed metering disc, a cover plate, a first motor and a feeding conduit, the fan cover is fixed on the blower; the seed metering disc is located inside the fan cover and gap-fitted therewith; the cover plate is fixed on the fan cover, and a baffle is arranged on the side of the cover plate close to the seed metering disc; the first motor is installed outside the cover plate and its output shaft penetrates through the cover plate, and the output shaft of the first motor is fixedly connected with the seed metering disc through a flange plate; one end of the feeding conduit is connected and communicated with the discharge port of the material box, and the other end of the feeding conduit extends and is fixed in the cavity between the seed metering disc and the cover plate; and the bottom of the cavity is connected and communicated with the launching mechanism through the conduit.

[0010] Further, the high-pressure gas supply assembly comprises a gas pump, a gas tank and a high-pressure conduit, the gas pump is fixed on the top of the air blower; the gas tank is connected with the gas pump through a hose; one end of the high-pressure conduit is connected with the gas tank, and the other end of the high-pressure conduit is connected with the launching mechanism.

[0011] Further, the launching mechanism comprises a support plate, a reduction gear set, a second motor, a linear guide rail, a rocker arm, a linear motion rod, a pull rod, an exhaust piston, a tee joint and a launching tube, the reduction gear set is installed on the support plate which is vertically distributed; the output shaft of the second motor is fixedly connected with the input shaft of the reduction gear set; the linear guide rail is fixed on the support plate in the vertical direction; the rocker arm is rotationally connected with the output shaft of the reduction gear set; the linear motion rod is installed in the linear guide rail; the top end of the pull rod is rotationally connected with the rocker arm, and the bottom end of the pull rod is rotationally connected with the top end of the linear motion rod; the top of the exhaust piston is fixed on the bottom end of the linear motion rod, and the bottom of the exhaust piston is installed in the top interface of the tee joint and is slidably connected with the top interface; the high-pressure conduit is connected with the top end of the exhaust piston; the launching tube is installed in the bottom interface of the tee joint and is slidably connected with the bottom interface; and the bottom end of the conduit is connected with the side interface of the tee joint.

[0012] Further, an eccentric motor is installed on the conduit.

[0013] The above-mentioned further technical solutions have the beneficial effects that the conduit generates high-frequency vibration, and the seed is prevented from being accumulated in the conduit.

[0014] Further, a microswitch corresponding to the position of the rocker arm is installed on the support plate; the high-pressure gas supply assembly further comprises a pressure relief valve, an electromagnetic valve and a controller, the pressure relief valve and the electromagnetic valve are both installed on the high-pressure conduit; the microswitch is electrically connected with the controller, and the controller is electrically connected with the electromagnetic valve.

[0015] Further, the seeding mechanism further comprises a camera, and the camera is installed at the bottom of the launching tube.

[0016] The above-mentioned further technical solutions have the beneficial effects that the operator can remotely control or join the onboard computer to identify.

[0017] A seeding device comprises a unmanned aerial vehicle and the above-mentioned seeding mechanism, the support plate and the tee joint are both fixed on the gimbal of the unmanned aerial vehicle; the camera is electrically connected with the controller, and the controller is electrically connected with the gimbal of the unmanned aerial vehicle.

[0018] By adopting the above technical solutions, the present application has the beneficial effects that:

[0019] The launching mechanism can perform precise seeding under the action of the drone gimbal. The direction of the launching mechanism can be adjusted to compensate for the lack of accuracy caused by atmospheric influence and satellite positioning during drone seeding. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Fig. 1 The attached figure is a three-dimensional structural schematic diagram of a seeding device provided by the present invention;

[0022] Fig. 2 The attached figure is an exploded view of the negative suction seed metering device provided by the present invention;

[0023] Fig. 3 The attached figure is a side view of the launching mechanism provided by the present invention. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figs. 1-3 As shown in the figure, this invention discloses a seeding mechanism, including a feed box 1, a negative suction seed metering device 2, a launching mechanism 3, and a high-pressure air supply component 4. The negative suction seed metering device 2 is connected to the feed box 1; the launching mechanism 3 is connected to the negative suction seed metering device 2 via a conduit 5; and the high-pressure air supply component 4 is connected to the launching mechanism 3. The negative suction seed metering device 2 of this invention transports the seeds in the feed box 1 one by one into the launching mechanism 3 in an orderly manner. Under the combined effect of the cyclic reciprocating compression of the launching mechanism 3 and the high-pressure gas driving force provided by the high-pressure air supply component 4, the seeds are launched at a certain speed, fall rapidly, and enter the soil, thereby achieving orderly, precise, and continuous seeding into the soil and ensuring the seed penetration depth.

[0026] Specifically, the negative suction seed metering device 2 comprises a blower 21, a fan cover 22, a seed plate 23, a cover plate 24, a first motor 25 and a feeding conduit 26. The fan cover 22 is fixed on the blower 21, in this embodiment, by sealing glue. The seed plate 23 is located inside the fan cover 22 and is in gap cooperation with the fan cover 22. The cover plate 24 is fixed on the fan cover 22, in this embodiment, by screw connection. The cover plate 24 is provided with a baffle 241 on the side close to the seed plate 23. The first motor 25 is installed outside the cover plate 24 and its output shaft penetrates through the cover plate 24. In this embodiment, the body of the first motor 25 is fixed outside the cover plate 24 by screw connection. The output shaft of the first motor 25 is fixedly connected with the seed plate 23 by a flange plate. One end of the feeding conduit 26 is connected with the discharge port of the seed tank 1. The other end of the feeding conduit 26 extends into the cavity between the seed plate 23 and the cover plate 24. The bottom of the cavity is connected with the launching mechanism 3 through the conduit 5.

[0027] Specifically, the high-pressure gas supply assembly 4 comprises a gas pump 41, a gas tank 42 and a high-pressure conduit 43. The gas pump 41 is fixed on the top of the blower 21. The gas tank 42 is connected with the gas pump 41 through a hose. One end of the high-pressure conduit 43 is connected with the gas tank 42. The other end of the high-pressure conduit 43 is connected with the launching mechanism 3. Of course, the launching mechanism 3 is powered by the high-pressure gas provided by the gas pump 41. The gas release pressure can be adjusted according to the strength of the seed coat.

[0028] Specifically, the launching mechanism 3 comprises a support plate 31, a speed reduction gear set 32, a second motor 33, a linear guide rail 34, a rocker arm 35, a linear motion rod 36, a pull rod 37, an exhaust piston 38, a tee joint 39 and a launching tube 310. The speed reduction gear set 32 is installed on the vertically distributed support plate 31. The output shaft of the second motor 33 is fixedly connected with the input shaft of the speed reduction gear set 32. The linear guide rail 34 is fixed on the support plate 31 in the vertical direction. In this embodiment, a linear ball bearing is installed in the linear guide rail 34. The rocker arm 35 is rotatably connected with the output shaft of the speed reduction gear set 32. The linear motion rod 36 is installed in the linear guide rail 34. The top end of the pull rod 37 is rotatably connected with the rocker arm 35. The bottom end of the pull rod 37 is rotatably connected with the top end of the linear motion rod 36. In this embodiment, the rotatable connection is realized by a universal ball head and screw cooperation. The top of the exhaust piston 38 is fixed on the bottom end of the linear motion rod 36. The bottom of the exhaust piston 38 is installed in the top interface of the tee joint 39 and is slidably connected with the tee joint 39. The high-pressure conduit 43 is connected with the top end of the exhaust piston 38. The launching tube 310 is installed in the bottom interface of the tee joint 39 and is slidably connected with the tee joint 39. Of course, the length of the launching tube 310 can be adjusted, so as to reduce the distance from the launching tube 310 to the soil, improve the seeding accuracy and reduce the influence of air flow during the seeding process. The bottom end of the conduit 5 is connected with the side interface of the tee joint 39.

[0029] In order to prevent the seed from accumulating in the conduit 5, an eccentric motor 6 is installed on the conduit 5, so that the conduit 5 generates high-frequency vibration.

[0030] Specifically, the support plate 31 is provided with a micro switch 7 corresponding to the position of the rocker arm 35; the high-pressure gas supply assembly 4 further comprises a pressure relief valve 44, an electromagnetic valve 45 and a controller, and the pressure relief valve 44 and the electromagnetic valve 45 are both installed on the high-pressure conduit 43; the micro switch 7 is electrically connected with the controller, and the controller is electrically connected with the electromagnetic valve 45.

[0031] Specifically, the seeding mechanism further comprises a camera 8 installed at the bottom of the launching tube 310.

[0032] The embodiment of the present application further discloses a seeding device comprising a unmanned aerial vehicle and the seeding mechanism, and the support plate 31 and the tee joint 39 are both fixed on the unmanned aerial vehicle holder 9, which is a two-axis holder in the embodiment; the camera 8 is electrically connected with the controller, and the controller is electrically connected with the unmanned aerial vehicle holder 9. The launching mechanism 3 can be accurately seeded under the action of the unmanned aerial vehicle holder 9, and the direction of the launching mechanism 3 is adjusted to compensate for the insufficient accuracy caused by the influence of atmosphere and satellite positioning during the unmanned aerial vehicle seeding in flight.

[0033] Working principle of the present application:

[0034] The seed enters the internal cavity of the negative suction seed metering device 2 from the feed tank 1 through the feed conduit 26, the suction fan 21 generates an inward suction force to adsorb the seed on the surface of the negative pressure hole of the seed metering disc 23, the first motor 25 drives the seed metering disc 23 to rotate, and the seed moves along with the seed metering disc 23, and when the seed moves to the position of the baffle 241 of the cover plate 24, the seed is blocked and falls into the conduit 5, and then falls into the tee joint 39 of the launching mechanism 3, the second motor 33 drives the speed reduction gear set 32 to rotate, the rocker arm 35 rotates, the pull rod 37 drives the linear motion rod 36 to move up and down, and then the exhaust piston 38 moves up and down, when the exhaust piston 38 moves to the bottom of the tee joint 39, the exhaust piston 38 just blocks the side interface channel of the tee joint 39 to prevent the leakage of the gas from the side interface of the tee joint 39 when the high-pressure gas expands to do work, and at the same time, when the exhaust piston 38 reaches the bottom, the rocker arm 35 triggers the micro switch 7 to open, the micro switch 7 transmits an opening signal to the controller, the controller controls the electromagnetic valve 45 to open, and the high-pressure gas in the gas tank 42 is released into the high-pressure conduit 43 under the action of the air pump 41 to generate a pushing force on the seed.

[0035] The camera 8 collects the image of the target area, the controller controls the unmanned aerial vehicle holder 9 to adjust the direction of the launching mechanism 3, releases part of the high-pressure gas, the high-pressure gas expands to do work to push the seed, and the seed is shot into the ground at a certain speed to complete a cycle.

[0036] The various embodiments described in this specification are implemented in a progressive manner, each embodiment focusing on the differences from other embodiments, and the same or similar parts between embodiments can be mutually referred to. For the apparatus disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0037] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those of ordinary skill in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A seeding mechanism, characterized in that, The device includes a feed hopper, a negative suction seed metering device, a launching mechanism, and a high-pressure air supply assembly. The negative suction seed metering device is connected to the feed hopper. The launching mechanism is connected to the negative suction seed metering device via a conduit. The high-pressure air supply assembly is connected to the launching mechanism. The negative suction seed metering device includes a blower, a blower cover, a seed metering disc, a cover plate, a first motor, and a feed duct. The blower cover is fixed to the blower. The seed metering disc is located inside the blower cover and is clearance-fitted with it. The cover plate is fixed to the blower cover, and a baffle is provided on the side of the cover plate near the seed metering disc. The first motor is installed on the outside of the cover plate, and its output shaft passes through the cover plate. The output shaft of the first motor is fixedly connected to the seed metering disc through a flange. One end of the feed duct is connected to the discharge port of the material box, and the other end of the feed duct extends and is fixed in the cavity between the seed metering disc and the cover plate. The high-pressure air supply assembly includes an air pump, an air tank, and a high-pressure conduit. The air pump is fixed to the top of the blower. The air tank is connected to the air pump via a hose. The launching mechanism includes a support plate, a reduction gear set, a second motor, a linear guide rail, a rocker arm, a linear motion rod, a pull rod, an exhaust piston, a tee, and a launching tube. The reduction gear set is mounted on the vertically distributed support plate. The output shaft of the second motor is fixedly connected to the input shaft of the reduction gear set. The linear guide rail is fixed vertically on the support plate. The rocker arm is rotatably connected to the output shaft of the reduction gear set. The linear motion rod is installed inside the linear guide rail. The top end of the pull rod is rotatably connected to the rocker arm, and the bottom end of the pull rod is rotatably connected to the top end of the linear motion rod. The top end of the exhaust piston is fixed to the bottom end of the linear motion rod, and the bottom end of the exhaust piston is installed inside the top interface of the tee and slidably connected thereto. One end of the high-pressure conduit is connected to the gas tank, and the other end of the high-pressure conduit is connected to the top end of the exhaust piston. The launching tube is installed inside the bottom interface of the tee and slidably connected thereto. The bottom end of the conduit is connected to the side interface of the tee, and the top end of the conduit is connected to the bottom of the cavity.

2. The seeding mechanism according to claim 1, characterized in that, An eccentric motor is installed on the conduit.

3. A seeding mechanism according to claim 2, characterized in that, The support plate is equipped with a micro switch corresponding to the position of the rocker arm; the high-pressure gas supply assembly also includes a pressure relief valve, a solenoid valve and a controller, the pressure relief valve and the solenoid valve are both installed on the high-pressure conduit; the micro switch is electrically connected to the controller, and the controller is electrically connected to the solenoid valve.

4. A seeding mechanism according to claim 3, characterized in that, The seeding mechanism also includes a camera mounted at the bottom of the transmitting tube.

5. A seeding device, characterized in that, The device includes a drone and a seeding mechanism as described in claim 4, wherein the support plate and the tee are both fixed to the gimbal of the drone; the camera is electrically connected to the controller, and the controller is electrically connected to the gimbal of the drone.

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