A device for precision seeding of garlic chives layer by layer

Abstract

The invention discloses a layer-by-layer precision seeding device for radish, comprising a frame, a crawler walking mechanism, a furrowing mechanism, a seeding mechanism and a soil covering mechanism; the seeding mechanism comprises seven seeding devices and a transmission assembly; the seeding device comprises a seeding device housing, a seeding device top cover, a seeding device bottom cover, a plurality of seeding discs stacked in the seeding device housing, and a liftable driving mechanism for driving each seeding disc to seed; the seeding disc comprises a seeding disc housing and a seeding fan, and a seeding port is provided at the bottom of the seeding disc housing; the driving mechanism comprises a screw rod, a motor fixing block, a servo motor and a seeding gear. The invention travels through a crawler walking mechanism, furrows are opened through a furrowing plow, and seven seeding devices in the seeding mechanism are staggered in the form of four in front and three in the back, the transmission assembly is used to provide power to the screw rod of the driving mechanism, and the servo motor is used to drive the seeding gear to rotate so as to drive the seeding fan in the corresponding seeding disc to rotate, so as to realize layer-by-layer precision seeding, and the soil covering mechanism covers the soil after seeding, thereby completing the seeding.

Description

Technical Field

[0001] The invention relates to the field of sowing, and in particular to a device for accurately sowing celery layer by layer. Background Art

[0002] Allium chinense G.Don, also known as Xie and Qiaotou, is a perennial herbaceous plant. Its bulbs are several clustered and narrowly ovate; the outer skin of the bulb is white or reddish, membranous, and unbroken. There are 2-5 leaves, cylindrical with 3-5 edges, hollow, and nearly as long as the scape; the scape is lateral, cylindrical, and covered with leaf sheaths at the bottom; the involucre is shorter than the umbel; the umbel is nearly hemispherical and loose; the flowers are lavender to dark purple; the tepals are broadly elliptical to nearly circular, with obtuse apex; the ovary is obovoid, with a concave honey hole with a curtain at the base of the ventral suture; the style extends out of the tepals. The flowering and fruiting period is October-November.

[0003] Allium is a plant that can be used as both medicine and food. Its leaves and bulbs have certain medicinal value. The leaves are the source of the Chinese medicinal material Allium leaf, which is mainly used to treat lung asthma; the bulbs are the source of the Chinese medicinal material Allium macrostemon, which has the effects of regulating qi and relieving chest tightness, promoting yang and dispersing nodules. It is mainly used to treat chest pain, heart pain that extends to the back, chest and abdominal distension, cough, asthma and excessive sputum.

[0004] The known patent publication number CN114731810A discloses a spoon-clip type radish precision seeding device, which includes a seeding plate assembly, a seed box assembly and a frame assembly; the seeding plate assembly includes a seeding plate, a rotating shaft and a spring spoon clamp unit; the seed box assembly includes a seed box and a seed cleaning brush; the frame assembly includes a frame seed taking cam, a seed throwing cam and a seed guide cup; the spring spoon clamp unit includes a spoon clamp, a spoon rod and a torque spring; the invention can stably clamp and place radish seeds without damaging the seeds; the seed taking and seed throwing range is adjustable, and the structure is simple and compact. However, the device is used for seeding by clamping, which is prone to missing clamps and affects the sowing quality. In addition, in order to improve the success rate of clamping, the device may need to perform certain pre-treatment (cut off part of the roots of the radish seeds and remove a certain length of the radish stalks), which is easy to reduce the survival rate of the radish seeds.

[0005] Known patent publication number CN221488301U discloses an electric-driven radish tiller, including: a chain track, a drive device, a lead-acid battery, a frame, an operating device, a moldboard plow, a foot support, and a controller. The chain track is installed on the frame, and the frame is divided into left and right sides, front and rear ends; the drive device is installed on the right side of the frame; the foot support is installed on the left side of the frame; the lead-acid battery is installed on the upper front end of the frame; the chain track is installed on the bottom of the front end of the frame; the moldboard plow is installed on the bottom of the rear end of the frame; the operating device is installed on the upper rear end of the frame; the controller is installed on the left side of the front end of the frame; the phenomenon that a large amount of manpower and animal power are required for trenching and covering soil when planting radish in rows is improved, the economic cost of planting radish is reduced, and the efficiency of planting radish in rows is improved; it has the characteristics of simple operation, time-saving and labor-saving, and easy to carry. However, the radish tiller requires manual seeding, low planting efficiency, and it is difficult to achieve mechanized precision sowing of radish seeds. Summary of the invention

[0006] The purpose of the invention is to overcome the deficiencies of the prior art and provide a device for accurately sowing celery layer by layer.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A layer-by-layer precision seeding device for radish includes a frame, a crawler walking mechanism, a furrowing mechanism, a seeding mechanism and a soil covering mechanism, wherein: the frame is arranged on the crawler walking mechanism, the seeding mechanism is arranged on the frame, the furrowing mechanism is arranged on the front side of the frame, and the soil covering mechanism is arranged on the rear side of the frame;

[0009] The seeding mechanism comprises seven seeding devices and a transmission assembly, wherein the seven seeding devices are staggered in a pattern of four in front and three in the back;

[0010] The seed metering device comprises a seed metering device housing, an openable seed metering device top cover, a seed metering device bottom cover, a plurality of seed metering disks stacked in the seed metering device housing, and a liftable driving mechanism for driving each seed metering disk to meter seeds;

[0011] The seeding disc comprises a seeding disc shell and a seeding fan rotatably mounted in the seeding disc shell, and a seeding opening is arranged at the bottom of the seeding disc shell; the seeding fan comprises an inner gear ring and fan blades evenly distributed on the outer peripheral wall of the inner gear ring, and two adjacent fan blades form a sector for filling radish seeds, and when the radish seeds in the sector rotate to the seeding opening, the radish seeds are discharged from the seeding opening under the action of gravity;

[0012] The driving mechanism includes a screw rod, a motor fixing block, a servo motor and a seeding gear. The screw rod is arranged in the middle of the interior of the seeding device housing and is powered by a transmission assembly. The servo motor is mounted on the motor fixing block. The output end of the servo motor is provided with a seeding gear meshing with an inner gear ring. The interior of the seeding device housing is provided with a limit groove for guiding the lifting and lowering of the motor fixing block.

[0013] Further: the transmission assembly includes a motor, an intermediate transmission shaft and two sets of worm assemblies;

[0014] The motor is installed below the frame through a motor bracket; the output end of the motor is connected to an intermediate transmission shaft through a gear, and the intermediate transmission shaft transmits power to two sets of worm assemblies through bevel gears, one set of worm assemblies includes three coaxially connected worms or a single worm shaft has three sections of worms, and the other set of worm assemblies includes four coaxially connected worms or a single worm shaft has four sections of worms;

[0015] The upper end of the screw is sleeved in a tapered roller bearing, and the tapered roller bearing is installed at the bottom of the seed metering device top cover; the lower end of the screw is connected to the turbine transmission shaft through a turbine coupling, and the turbine transmission shaft is provided with a transmission turbine that meshes with the corresponding worm or corresponding worm segment of the corresponding worm assembly.

[0016] Further: the furrowing mechanism is a depth-adjustable structure, including a furrowing plow, a depth-adjusting worm assembly, a depth-adjusting motor bracket, a depth-adjusting motor, a height-adjusting screw, a bearing fixing sleeve, a thrust bearing, a threaded through-hole turbine, and a furrowing device mounting plate;

[0017] The depth adjustment motor is installed under the frame through a depth adjustment motor bracket, and the depth adjustment motor is connected to the depth adjustment worm assembly through a bevel gear.

[0018] The depth adjustment worm assembly comprises seven coaxially connected worms or a single worm shaft with seven sections of worms, and both ends of the depth adjustment worm assembly are respectively mounted on the furrow opener mounting plate through diamond seat bearings;

[0019] The number of the furrowing plows is consistent with the number of the seed metering devices. The furrowing plows are fixed to the lower end of the height adjustment screw by bolt connection. The upper end of the height adjustment screw passes through the furrow opener mounting plate and is sleeved with a threaded through hole turbine that engages with the corresponding worm or the corresponding worm segment of the depth adjustment worm assembly. Thrust bearings are respectively provided on both sides of the threaded through hole turbine, and a bearing fixing sleeve is provided on the furrow opener mounting plate.

[0020] Further: a box body and a box cover are arranged on the furrow opener mounting plate, and the furrow opener mounting plate serves as the bottom plate of the box body, and the box is fixed to the front side of the frame by welding; the box cover is fixed to the box body by bolt connection.

[0021] Further: the soil covering mechanism includes a soil covering frame and a soil covering plate, the soil covering frame includes a crossbeam and connecting columns evenly distributed below the crossbeam, the soil covering plate is installed at the lower end of the connecting column and the soil covering plate is in a V-shaped structure.

[0022] Further: it also includes a controller and a power module; the power module supplies power to the controller, and the crawler walking mechanism, ditching mechanism, and seeding mechanism are respectively connected to the controller.

[0023] Furthermore: bosses are symmetrically provided on the outer circumference of the upper end of the seed disc shell, and concave cavities matching the bosses are symmetrically provided on the outer circumference of the lower end of the seed disc shell. The seed disc utilizes the bosses and the concave cavities to achieve a stacked arrangement, and the seed discharge ports of each seed disc are interconnected to form a continuous seed discharge channel.

[0024] Further: the area between the two blades corresponding to the seeding opening is the first sector, and the seeds are seeded in a clockwise direction, and a reflective strip is provided on the outer wall of the inner gear ring located in the last sector;

[0025] The seeding disc housing is embedded with a laser sensor corresponding to the outer wall of the inner gear ring of the first sector;

[0026] The bottom seed tray is the first layer.

[0027] When planting the first layer, start the servo motor, and under the control of the controller, the servo motor drives the seeding gear of the first layer of seeding disk to rotate to discharge the radish seeds in each sector from the seeding port; when the laser sensor senses the signal fed back by the reflective strip, the controller controls the servo motor to stop rotating, and starts the motor at the same time, and raises the servo motor together with the seeding gear to the position of the second layer of seeding disk, and starts the servo motor to drive the second layer of seeding disk to plant seeds, and repeats the above rising and planting actions; when the uppermost laser sensor senses the signal fed back by the reflective strip, the controller controls the servo motor to stop rotating, and controls the motor to reverse at the same time, and lowers the servo motor together with the seeding gear to the position of the first layer of seeding disk, completing the planting of radish seeds in the seeding device.

[0028] Further: the crawler walking mechanism includes a crawler track, a crawler wheel, a crawler wheel driving motor and a crawler wheel bracket; the crawler wheel is installed on the crawler wheel bracket, the crawler wheel driving motor is connected to the crawler wheel, the crawler wheel driving motor is installed on the front side of the crawler wheel bracket, and the crawler track is covered on the crawler wheel.

[0029] Further: the top cover of the seed metering device is installed on the outer shell of the seed metering device through a buckle.

[0030] The beneficial effects of the present invention are as follows:

[0031] 1. The present invention moves by means of a crawler walking mechanism, and furrows are dug by means of a furrowing plow during movement. Seven seeding devices in the seeding mechanism are staggered with four in front and three in the back. A transmission assembly is used to provide power to the screw rod of the driving mechanism, and a servo motor is used to drive the seeding gear to rotate, thereby driving the seeding fan in the corresponding seeding disk to rotate, so as to realize precise seeding layer by layer. After seeding, a soil covering mechanism is used to cover the soil, thereby completing the sowing.

[0032] 2. The present invention utilizes the rotation of the seed-discharging fan to gradually discharge the radish seeds in each sector from the seed-discharging port. Compared with CN114731810A, it avoids seed damage and missed seeding during clamping, and does not require pre-treatment of the seeds filled in the sector, thereby improving the survival rate of the radish seeds.

[0033] 3. The furrowing mechanism of the present invention is a depth-adjustable structure. The depth-adjusting motor drives the depth-adjusting worm assembly to rotate, which can drive the threaded through-hole turbine to rotate and then drive the height-adjusting screw to move up and down, thereby realizing synchronous depth adjustment of seven furrowing plows.

[0034] 4. The crawler walking mechanism, furrowing mechanism and seeding mechanism of the present invention are respectively connected to the controller, which can realize precise control and efficient operation, accurately control the furrowing depth and seeding speed, and greatly improve the uniformity and accuracy of sowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention;

[0036] Figure 2 It is a structural schematic diagram of a crawler walking mechanism in a preferred embodiment of the present invention;

[0037] Figure 3 It is a structural schematic diagram of a frame and a soil covering mechanism in a preferred embodiment of the present invention;

[0038] Figure 4 It is a structural schematic diagram of a trenching mechanism in a preferred embodiment of the present invention;

[0039] Figure 5 This is a schematic diagram of the installation of the trenching mechanism in a preferred embodiment of the present invention;

[0040] Figure 6 A bottom view of the seed discharging mechanism in a preferred embodiment of the present invention;

[0041] Figure 7 A cross-sectional view of a seed meter in a preferred embodiment of the present invention;

[0042] Figure 8 An exploded view of a seeding disc in a preferred embodiment of the present invention;

[0043] Fig. 9This is a schematic diagram of the structure of a seeding disc in a preferred embodiment of the present invention;

[0044] Fig.10 It is a cross-sectional view of a seeding disc in a preferred embodiment of the present invention.

[0045] In the figure: crawler walking mechanism 1, furrowing mechanism 2, controller 3, power module 4, seeding mechanism 5, frame 6, soil covering mechanism 7, crawler 11, crawler wheel drive motor 12, crawler wheel bracket 13, furrowing plow 21, depth adjustment worm assembly 22, depth adjustment motor bracket 23, depth adjustment motor 24, height adjustment screw 25, bearing fixing sleeve 26, thrust bearing 27, threaded through hole turbine 28, fixed coupling 29, seeding device 51, worm assembly 52, seat bearing 53, transmission coupling 54, motor bracket 55, motor 56, bevel gear 57, intermediate transmission shaft 58, seeding device top cover 511, buckle 512, seeding device housing 513, seeding disc 514, seeding Device bottom cover 515, limiting groove 516, screw rod 517, turbine coupling 518, fastening nut 519, diamond seat bearing 210, furrow opener mounting plate 211, box cover 2111, box body 2112, transmission turbine 5110, turbine transmission shaft 5111, motor fixing block 5112, servo motor 5113, seeding gear 5114, tapered roller bearing 5115, reflective strip 5141, laser sensor 5142, seeding disc housing 5143, ball bracket 5144, fastening bolt 5145, ball 5146, seeding fan 5147, seeding port 51431, boss 51432, concave cavity 51433, positioning hole 51434, limiting ring 51435. DETAILED DESCRIPTION

[0046] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] For example, see Figure 1 As shown, it includes a frame 6, a crawler walking mechanism 1, a furrowing mechanism 2, a seeding mechanism 5 and a soil covering mechanism 7, wherein: the frame 6 is arranged on the crawler walking mechanism, the seeding mechanism 5 is arranged on the frame 6, the furrowing mechanism 2 is arranged on the front side of the frame 6, and the soil covering mechanism 7 is arranged on the rear side of the frame 6;

[0048] The seeding mechanism 5 includes seven seeding devices 51 and a transmission assembly. The seven seeding devices 51 are staggered with four in front and three in the back, which can improve the seeding efficiency, ensure that the seeds are evenly distributed during the seeding process, reduce the spacing error between seeds, and thus improve the accuracy and uniformity of seeding.

[0049] Specifically, see Figure 7 As shown, the seed meter 51 includes a seed meter housing 513, an openable seed meter top cover 511, a seed meter bottom cover 515, a plurality of seed metering discs 514 stacked in the seed meter housing 513, and a liftable driving mechanism for driving each seed metering disc 514 to meter seeds. Preferably, eight seed metering discs 514 are provided in each seed meter 51, that is, each seed meter 51 has eight layers of seed metering discs 514.

[0050] See also Figures 8 to 10 As shown, the seeding disk 514 includes a seeding disk shell 5143 and a seeding fan 5147 rotatably installed in the seeding disk shell 5143, and a seeding port 51431 is provided at the bottom of the seeding disk shell 5143; the seeding fan 5147 includes an inner gear ring and fan blades evenly distributed on the outer peripheral wall of the inner gear ring, and two adjacent fan blades form a sector for filling with radish seeds. Preferably, each seeding fan 5147 has forty sectors, and each sector is filled with 1-2 radish seeds. When the radish seeds in the sector rotate to the seeding port 51431, the radish seeds are discharged from the seeding port 51431 under the action of gravity. By utilizing the rotation of the seeding fan, the radish seeds in each sector can be gradually discharged from the seeding port, and the seeds in each sector do not need to be highly pelletized and do not need to be pre-treated. The seeds can be directly filled into each sector to achieve the seeding of radish, thereby improving the survival rate of the radish seeds.

[0051] More specifically, a positioning hole 51434 and a limiting ring 51435 are provided inside the seed disc housing 5143, a ring groove is provided at the lower part of the inner gear ring, a ball 5146 is provided between the ring groove and the limiting ring 51435, the lower end of the inner gear ring is inserted into the positioning hole 51434 and is connected to the ball bracket 5144 by a fastening bolt 5145, and is restricted inside the seed disc housing 5143 by the ball bracket 5144, thereby realizing the rotation installation of the seed fan 5147.

[0052] See also Figure 7 As shown, the driving mechanism includes a screw rod 517, a motor fixing block 5112, a servo motor 5113 and a seeding gear 5114. The screw rod 517 is arranged in the middle of the inner part of the seeding device housing 513 and is powered by a transmission assembly. The servo motor 5113 is mounted on the motor fixing block 5112. The output end of the servo motor 5113 is provided with a seeding gear 5114 meshing with the inner gear ring. The inner part of the seeding device housing 513 is provided with a limit groove 516 for guiding the lifting and lowering of the motor fixing block 5112. By driving the screw rod 517 to rotate, the motor fixing block 5112, the servo motor 5113 and the seeding gear 5114 can be driven to lift and lower. The servo motor 5113 drives the seeding gear 5114 to rotate, which can drive the seeding fan 5147 in the corresponding seeding disk 514 to rotate, thereby realizing the seeding of each seeding disk 514.

[0053] See also Figure 6 and Figure 7 As shown, the transmission assembly includes a motor 56, an intermediate transmission shaft 58 and two sets of worm assemblies 52;

[0054] The motor 56 is installed below the frame 6 through a motor bracket 55; the output end of the motor 56 is connected to the intermediate transmission shaft 58 through a gear, and the intermediate transmission shaft 58 transmits power to two sets of worm assemblies 52 through a bevel gear 57, wherein one set of worm assemblies 52 includes three coaxially connected worms or a single worm shaft has three sections of worms, and the other set of worm assemblies 52 includes four coaxially connected worms or a single worm shaft has four sections of worms. Preferably, the two sets of worm assemblies 52 are composed of multiple worms, each of which is installed below the frame 6 through a seat bearing 53, and the corresponding worms are connected through a transmission coupling 54.

[0055] See also Figure 7 As shown, the upper end of the screw rod 517 is sleeved in the tapered roller bearing 5115, and the tapered roller bearing 5115 is installed at the bottom of the seed metering device top cover 511; the lower end of the screw rod 517 is connected to the turbine transmission shaft 5111 through the turbine coupling 518, and the turbine transmission shaft 5111 is provided with a transmission turbine 5110 that meshes with the corresponding worm or the corresponding worm segment of the corresponding worm assembly 52, and the transmission turbine 5110 is fixed to the turbine transmission shaft 5111 by a fastening nut 519.

[0056] See also Figure 4 and Figure 5 As shown, the furrowing mechanism 2 is a depth-adjustable structure, including a furrowing plow 21, a depth-adjusting worm assembly 22, a depth-adjusting motor bracket 23, a depth-adjusting motor 24, a height-adjusting screw 25, a bearing fixing sleeve 26, a thrust bearing 27, a threaded through-hole turbine 28, and a furrowing device mounting plate 211;

[0057] The depth adjustment motor 24 is installed under the frame 6 through the depth adjustment motor bracket 23, and the depth adjustment motor 24 is connected to the depth adjustment worm assembly 22 through a bevel gear;

[0058] The depth adjustment worm assembly 22 includes seven coaxially connected worms or a single worm shaft with seven sections of worms, and both ends of the depth adjustment worm assembly 22 are respectively mounted on the furrow opener mounting plate 211 through diamond seat bearings 210; preferably, the depth adjustment worm assembly 22 is composed of seven worms, and the corresponding worms are connected through a fixed coupling 29;

[0059] The number of furrowing plows 21 is consistent with the number of seeding devices 51. The furrowing plow 21 is fixed to the lower end of the height adjustment screw 25 by bolt connection. The upper end of the height adjustment screw 25 passes through the furrow opener mounting plate 211 and is sleeved with a threaded through hole turbine 28 that meshes with the corresponding worm or corresponding worm segment of the depth adjustment worm assembly 22. Thrust bearings 27 are respectively provided on both sides of the threaded through hole turbine 28. The furrow opener mounting plate 211 is provided with a bearing fixing sleeve 26 for fixing the thrust bearing 27. The depth adjustment worm assembly 22 is driven to rotate by the depth adjustment motor 24, which can drive the threaded through hole turbine 28 to rotate and then drive the height adjustment screw to move up and down, so as to realize the synchronous depth adjustment of the seven furrowing plows 21.

[0060] See also Figure 4 As shown, a box body 2112 and a box cover 2111 are provided on the furrow opener mounting plate 211, and the furrow opener mounting plate 211 serves as the bottom plate of the box body 2112, and the box body 2112 is fixed to the front side of the frame 6 by welding; the box cover 2111 is fixed to the box body 2112 by bolt connection.

[0061] See also Figure 3 As shown, the soil covering mechanism 7 includes a soil covering frame and a soil covering plate. The soil covering frame includes a crossbeam and connecting columns evenly distributed below the crossbeam. The soil covering plate is installed at the lower end of the connecting column and has a V-shaped structure.

[0062] In one embodiment: it also includes a controller 3 and a power module 4; the power module 4 supplies power to the controller 3, and the crawler walking mechanism 1, the furrowing mechanism 2, and the seeding mechanism 5 are respectively connected to the controller 3.

[0063] See also Figure 8 As shown, bosses 51432 are symmetrically provided on the outer circumference of the upper end of the seed disc shell 5143, and concave cavities 51433 matching the bosses 51432 are symmetrically provided on the outer circumference of the lower end of the seed disc shell 5143. The seed disc 514 utilizes the bosses 51432 and the concave cavities 51433 to achieve a stacked arrangement, and the seed ports 51431 of each seed disc 514 are interconnected to form a continuous seeding channel.

[0064] See also Figures 8 to 10 As shown, the area between the two blades corresponding to the seeding opening 51431 is the first sector, and seeds are discharged in a clockwise direction. A reflective strip 5141 is provided on the outer wall of the inner gear ring located in the last sector;

[0065] The seeding disc housing 5143 is embedded with a laser sensor 5142 corresponding to the outer wall of the inner gear ring of the first sector;

[0066] The seed tray 514 at the bottom is the first layer.

[0067] When planting the first layer, the servo motor 5113 is started. Under the control of the controller 3, the servo motor 5113 drives the seeding gear 5114 of the first seeding disk 514 to rotate and discharge the radish seeds in each sector from the seeding port 51431; when the laser sensor 5142 senses the signal fed back by the reflective strip 5141, the first layer of seeding is completed, the controller 3 controls the servo motor 5113 to stop rotating, and starts the motor 56 at the same time, and raises the servo motor 5113 together with the seeding gear 5114 to the position of the second seeding disk, and starts the servo motor 5113 to drive the second seeding disk 514 to plant seeds, and repeats the above-mentioned rising and planting actions; when the uppermost laser sensor 5142 senses the signal fed back by the reflective strip 5141, the controller 3 controls the servo motor 5113 to stop rotating, and controls the motor 56 to reverse, and lowers the servo motor 5113 together with the seeding gear 5114 to the position of the first seeding disk, and completes the planting of the radish seeds in the seeding device.

[0068] See also Figure 2 As shown, the crawler walking mechanism 1 includes a crawler track 11, a crawler wheel, a crawler wheel driving motor 12 and a crawler wheel bracket 13; the crawler wheel is installed on the crawler wheel bracket 13, the crawler wheel driving motor 12 is connected to the crawler wheel, the crawler wheel driving motor 12 is installed on the front side of the crawler wheel bracket 13, and the crawler track is covered on the crawler wheel.

[0069] Furthermore, the seed metering device top cover 511 is mounted on the seed metering device housing 513 via a buckle 512, so as to facilitate the opening of the seed metering device top cover 511.

[0070] Before the present invention works, all the seeding trays 514 are filled with 1-2 radish seeds in each sector, and the sectors corresponding to the seeding openings 51431 are not filled. After filling, the seeding trays 514 are stacked in the seeding device housing 513, so that the seeding openings 51431 of each seeding tray 514 are interconnected. A concave cavity can also be provided at the inner bottom of the seeding device top cover 511 to position it with the boss 51432 of the uppermost seeding tray 514. After the seeding trays 514 are installed, the seeding device top cover 511 is covered and the buckle 512 is buckled.

[0071] When working, the crawler wheel drive motor is started to move the whole machine to the specified position, the depth adjustment motor is started to adjust the furrowing plow position to the specified depth, and the crawler wheel drive motor is continued to be started to drive the whole machine to move forward along the planting bed surface, the furrowing plow digs furrows, and the controller 3 controls the seeding mechanism 5 to seed. After seeding, the soil covering mechanism covers the planted radish with soil, thereby completing the sowing.

[0072] Seeding process:

[0073] The seed tray 514 at the bottom is the first layer.

[0074] When planting the first layer, the servo motor 5113 is started. Under the control of the controller 3, the servo motor 5113 drives the seeding gear 5114 of the first seeding disk 514 to rotate and discharge the radish seeds in each sector from the seeding port 51431; when the laser sensor 5142 senses the signal fed back by the reflective strip 5141, the controller 3 controls the servo motor 5113 to stop rotating, and starts the motor 56 at the same time, and raises the servo motor 5113 together with the seeding gear 5114 to the position of the second seeding disk, and starts the servo motor 5113 to drive the second seeding disk 514 to plant seeds, and repeats the above-mentioned rising and planting actions; when the uppermost laser sensor 5142 senses the signal fed back by the reflective strip 5141, the controller 3 controls the servo motor 5113 to stop rotating, and controls the motor 56 to reverse, and lowers the servo motor 5113 together with the seeding gear 5114 to the position of the first seeding disk, thereby completing the planting of the radish seeds in the seeding device.

[0075] It is worth noting that when the radish seeds in the seeding device 51 are used up, only the filled seeding tray 514 needs to be replaced; the program burned in the controller 3 controls the servo motor 5113 and the motor 56, which can realize the automatic control and precise operation of the seeding process, and provide strong support for the intelligent and automated development of mechanical equipment.

[0076] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0077] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for precision seeding of celery layer by layer, characterized in that: The invention comprises a frame (6), a crawler walking mechanism (1), a furrowing mechanism (2), a seeding mechanism (5) and a soil covering mechanism (7), wherein: the frame (6) is arranged on the crawler walking mechanism, the seeding mechanism (5) is arranged on the frame (6), the furrowing mechanism (2) is arranged on the front side of the frame (6), and the soil covering mechanism (7) is arranged on the rear side of the frame (6); The seeding mechanism (5) comprises seven seeding devices (51) and a transmission assembly, wherein the seven seeding devices (51) are arranged in a staggered manner with four in front and three in the back; The seed metering device (51) comprises a seed metering device housing (513), an openable seed metering device top cover (511), a seed metering device bottom cover (515), a plurality of seed metering discs (514) stacked in the seed metering device housing (513), and a liftable driving mechanism for driving each seed metering disc (514) to meter seeds; The seeding disc (514) comprises a seeding disc outer shell (5143) and a seeding fan (5147) rotatably mounted in the seeding disc outer shell (5143); a seeding opening (51431) is provided at the bottom of the seeding disc outer shell (5143); the seeding fan (5147) comprises an inner gear ring and fan blades evenly distributed on the outer peripheral wall of the inner gear ring; two adjacent fan blades form a sector for filling with radish seeds; when the radish seeds in the sector rotate to the seeding opening (51431), the radish seeds are discharged from the seeding opening (51431) under the action of gravity; The driving mechanism comprises a screw rod (517), a motor fixing block (5112), a servo motor (5113) and a seeding gear (5114); the screw rod (517) is arranged in the middle of the seeding device housing (513) and is powered by a transmission assembly; the servo motor (5113) is mounted on the motor fixing block (5112); the output end of the servo motor (5113) is provided with a seeding gear (5114) meshing with an inner gear ring; and a limit groove (516) for guiding the motor fixing block (5112) to rise and fall is provided inside the seeding device housing (513).

2. The device for precision seeding of allium tuberosum layer by layer according to claim 1, characterized in that: The transmission assembly comprises a motor (56), an intermediate transmission shaft (58) and two sets of worm assemblies (52); The motor (56) is installed below the frame (6) via a motor bracket (55); the output end of the motor (56) is connected to an intermediate transmission shaft (58) via a gear, and the intermediate transmission shaft (58) transmits power to two sets of worm assemblies (52) via bevel gears, wherein one set of the worm assembly (52) includes three coaxially connected worms or a single worm shaft has three sections of worms, and the other set of the worm assembly (52) includes four coaxially connected worms or a single worm shaft has four sections of worms; The upper end of the screw rod (517) is sleeved in a tapered roller bearing (5115), and the tapered roller bearing (5115) is installed at the bottom of the seed metering device top cover (511); the lower end of the screw rod (517) is connected to a turbine transmission shaft (5111) through a turbine coupling (518), and the turbine transmission shaft (5111) is provided with a transmission turbine (5110) that meshes with a corresponding worm or a corresponding worm segment of a corresponding worm assembly (52).

3. The device for precision seeding of allium layer by layer according to claim 2, characterized in that: The furrowing mechanism (2) is a depth-adjustable structure, comprising a furrowing plow (21), a depth-adjusting worm assembly (22), a depth-adjusting motor bracket (23), a depth-adjusting motor (24), a height-adjusting screw (25), a bearing fixing sleeve (26), a thrust bearing (27), a threaded through-hole turbine (28), and a furrowing device mounting plate (211); The depth adjustment motor (24) is installed below the frame (6) via a depth adjustment motor bracket (23), and the depth adjustment motor (24) is drivingly connected to the depth adjustment worm assembly (22) via a bevel gear; The depth adjustment worm assembly (22) comprises seven coaxially connected worms or a single worm shaft with seven sections of worms, and both ends of the depth adjustment worm assembly (22) are respectively mounted on the furrow opener mounting plate (211) through diamond seat bearings (210); The number of the furrowing plows (21) is consistent with the number of the seeding devices (51). The furrowing plows (21) are fixed to the lower end of the height adjustment screw (25) by bolt connection. The upper end of the height adjustment screw (25) passes through the furrow opener mounting plate (211) and is sleeved with a threaded through hole turbine (28) that meshes with the corresponding worm or corresponding worm segment of the depth adjustment worm assembly (22). Thrust bearings (27) are respectively provided on both sides of the threaded through hole turbine (28), and a bearing fixing sleeve (26) is provided on the furrow opener mounting plate (211).

4. The device for precision seeding of allium layer by layer according to claim 3, characterized in that: A box body (2112) and a box cover (2111) are provided on the furrow opener mounting plate (211), and the furrow opener mounting plate (211) serves as a bottom plate of the box body (2112). The box body (2112) is fixed to the front side of the frame (6) by welding; and the box cover (2111) is fixed to the box body (2112) by bolt connection.

5. The device for precision seeding of allium layer by layer according to claim 1, characterized in that: The soil covering mechanism (7) comprises a soil covering frame and a soil covering plate. The soil covering frame comprises a crossbeam and connecting columns evenly distributed below the crossbeam. The soil covering plate is installed at the lower end of the connecting column and has a V-shaped structure.

6. The device for precision seeding of allium layer by layer according to claim 3, characterized in that: It also includes a controller (3) and a power module (4); the power module (4) supplies power to the controller (3); the crawler walking mechanism (1), the furrowing mechanism (2), and the seeding mechanism (5) are respectively connected to the controller (3).

7. The device for precision seeding of allium layer by layer according to claim 1, characterized in that: Bosses (51432) are symmetrically arranged on the outer circumference of the upper end of the seeding disk shell (5143), and concave cavities (51433) matching the bosses (51432) are symmetrically arranged on the outer circumference of the lower end of the seeding disk shell (5143). The seeding disk (514) utilizes the bosses (51432) and the concave cavities (51433) to achieve a stacked arrangement, and the seeding ports (51431) of each seeding disk (514) are interconnected to form a continuous seeding channel.

8. The device for precision seeding of allium layer by layer according to claim 6, characterized in that: The first sector is the area between the two blades corresponding to the seeding opening (51431), and seeds are discharged in a clockwise direction. A reflective strip (5141) is provided on the outer wall of the inner gear ring located in the last sector; The seeding disc housing (5143) is embedded with a laser sensor (5142) corresponding to the outer wall of the inner gear ring of the first sector; The seed tray (514) at the bottom is the first layer. When the first layer is being planted, the servo motor (5113) is started. Under the control of the controller (3), the servo motor (5113) drives the seeding gear (5114) of the first seeding disk (514) to rotate and discharge the radish seeds in each sector from the seeding port (51431). When the laser sensor (5142) senses the signal fed back by the reflective strip (5141), the controller (3) controls the servo motor (5113) to stop rotating and starts the motor (56) at the same time, so that the servo motor (5113) and the seeding gear (5114) are rotated. 4) the servo motor (5113) and the seeding gear (5114) are raised to the position of the second seeding disc, and the servo motor (5113) is started to drive the second seeding disc (514) to sow seeds, and the above-mentioned raising and sowing actions are repeated; when the uppermost laser sensor (5142) senses the signal fed back by the reflective strip (5141), the controller (3) controls the servo motor (5113) to stop rotating, and controls the motor (56) to reverse, so that the servo motor (5113) and the seeding gear (5114) are lowered to the position of the first seeding disc, thereby completing the sowing of the radish seeds in the seeding device.

9. The device for precision seeding of allium layer by layer according to claim 1, characterized in that: The crawler walking mechanism (1) comprises a crawler track (11), a crawler wheel, a crawler wheel driving motor (12) and a crawler wheel bracket (13); the crawler wheel is mounted on the crawler wheel bracket (13), the crawler wheel driving motor (12) is connected to the crawler wheel, the crawler wheel driving motor (12) is mounted on the front side of the crawler wheel bracket (13), and the crawler track is wrapped around the crawler wheel.

10. The device for precision seeding of allium layer by layer according to claim 1, characterized in that: The seed metering device top cover (511) is mounted on the seed metering device housing (513) via a buckle (512).

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