Automatic seeder seeding system and seeder

Abstract

The present invention relates to agricultural machinery, and more particularly to an automatic seed drill sowing system and a seed drill. The automatic seed drill sowing system comprises a seed sowing mechanism, a drum, and a four-wheel bucket. The four-wheel bucket is connected to the drum in a rolling manner via its four wheels, and the drum is mounted on a second rotating shaft. The seed sowing mechanism comprises a first sprocket, a first rotating shaft, a plurality of elastic thumbwheels, a second sprocket, a first transmission gear, a second transmission gear, and a second rotating shaft. The first sprocket is fixed to the first rotating shaft, the first sprocket and the second sprocket are connected via a transmission chain, the second sprocket and the first transmission gear are connected via a shaft, the first transmission gear and the second transmission gear are meshed, and the second transmission gear is fixed to the second rotating shaft. The elastic thumbwheel is mounted on the first rotating shaft. The automatic seed drill sowing system, through the cooperation of the elastic thumbwheel and the elastic sheet, can move the seeds in the four-wheel bucket while the drum is running, making it easier for a tongue spoon to scoop up the seeds.

Description

Technical Field

[0001] The present invention relates to the field of agricultural machinery, and in particular to an automatic seeder seeding system and a seeder. Background Art

[0002] Seeders are widely used in modern agriculture to improve the problems of heavy workload and uneven sowing in manual sowing methods, and to improve sowing efficiency. According to the degree of mechanization, seeders are divided into manual seeders and automatic seeders. For example, the invention patent with publication number CN107155467B discloses a seeder, which is a manual seeder. Its advantage is that it can control the spacing between seeds and the number of seeds when they fall to the ground. For another example, the invention patent application with publication number CN111919546A discloses an automatic seeder, which can automatically sow seeds and facilitates the adjustment of the length of the tongue spoon and the center rod extending out of the drum wall; however, its adjustment mechanism includes many components such as a rotating disk, a spiral protrusion, a push rod, a rotating arm, a fixed shaft, a first bevel gear, a second bevel gear and a rotating rod. The structure is complex and the stability is poor, and only the tongue spoon on the same fixed disk can be adjusted at a time. The invention patent application with publication number CN112715098A discloses a seeder drum and a seeder, whose adjustment mechanism can simultaneously adjust the length of the tongue spoon extending out of the drum wall; however, sometimes the tongue spoon will be pressed into the inside of the drum and stuck and unable to pop out, and when there are fewer seeds in the bucket, the contact between the tongue spoon and the seeds is limited, and sometimes it is difficult to scoop out the seeds. Summary of the Invention

[0003] In order to solve the deficiencies in the background technology, the inventors have made improvements based on the background technology and provided a new automatic seeder seeding system and a seeder.

[0004] The automatic seeding machine seeding system provided by the present invention includes:

[0005] A seed dialing mechanism, comprising a first sprocket, a first rotating shaft, a plurality of elastic dial wheels, a second sprocket, a first transmission gear, a second transmission gear, and a second rotating shaft, wherein the first sprocket is fixed to the first rotating shaft, the first sprocket and the second sprocket are connected by a transmission chain, the second sprocket and the first transmission gear are connected by a shaft, the first transmission gear and the second transmission gear are meshed, and the second transmission gear is fixed to the second rotating shaft; the elastic dial wheel is mounted on the first rotating shaft;

[0006] a roller, the roller being mounted on the second rotating shaft;

[0007] The four-wheel bucket is connected to the drum in a rolling manner through its own four wheels. An arc-shaped plate sleeve is provided at the bottom of the four-wheel bucket, an elastic piece is embedded in the arc-shaped plate sleeve, a limit strip and a half-moon-shaped fixing lever are provided on the arc-shaped plate sleeve, a limit through-hole is provided on the limit strip, an elastic elastic band is provided on the fixing lever, one end of the elastic band passes through the limit through-hole on the limit strip and is connected with the elastic piece; the elastic piece can contact the elastic dial wheel, and the seed dialing mechanism, the drum and the four-wheel bucket are all installed on the frame.

[0008] Furthermore, the elastic dial wheel is provided with at least one arc-shaped dial plate, one end of which is provided with a scale line and is detachably connected to the first rotating shaft through a fixed ring seat; the other end of the dial plate is provided with at least one dial wheel, which can contact the elastic sheet.

[0009] Furthermore, the seed shifting mechanism is also provided with an elastic sprocket and a sliding support. The sliding support is fixed on the frame. A vertical slide rail is provided on the sliding support. The elastic sprocket is arranged in the slide rail. The elastic sprocket can move vertically along the slide rail. The elastic sprocket is located between the first sprocket and the second sprocket, and is used to adjust the tightness of the chain on the first sprocket and the second sprocket.

[0010] Furthermore, a discharge port is provided at the bottom of the four-wheel bucket, and a discharge plate detachably connected to the four-wheel bucket is provided on the discharge port.

[0011] Furthermore, a collecting tray is provided at the bottom of the four-wheel bucket, and the collecting tray is located below the discharge port to facilitate collection of the remaining seeds discharged by the four-wheel bucket.

[0012] Furthermore, the four-wheel bucket includes wheels, a bucket body, a first spring, a connecting rod, an adjusting frame, a connecting rod, a fixed partition, a movable partition, a guide rod, a second spring and a limiting ring; the two sides of the bucket body are respectively a fixed wall and a movable wall hinged at the bottom, a wheel is respectively provided on both sides of the bottom of the bucket body, and a wheel is respectively provided on each movable wall; a plurality of connecting rods are fixed to the rear of the bucket body, the first spring and the adjusting frame are provided on the connecting rod, the first spring is sleeved on the connecting rod, and one end of the first spring is connected to the bucket body, and the other end is connected to the adjusting frame The cam is connected to the frame; the adjusting frame is sleeved on the connecting rod, and the adjusting frame is hinged to the connecting rod, and the connecting rod is movably connected to the frame of the carrier vehicle; a plurality of fixed partitions are arranged in the bucket body, and the fixed partitions divide the internal space of the bucket body into a plurality of small spaces, and each of the small spaces is provided with a movable partition; the guide rod is arranged on the outside of the movable wall, and the limiting ring is arranged on the outside of the fixed wall, one end of the guide rod is movably connected to the outside of the movable wall, and the other end of the guide rod passes through the limiting ring, and a second spring is sleeved on the guide rod.

[0013] Furthermore, a pulley and a track are provided at the top of the fixed wall and the bottom of the bucket body. The pulley is fixedly connected to the fixed wall. One end of the track is fixedly connected to the frame, and the other end cooperates with the pulley. The pulley can slide in the track.

[0014] The roller may be the same as the roller disclosed in the invention patent application with publication number CN112715098A, or may be an improved roller. Preferably, the roller comprises:

[0015] Drum wall;

[0016] Two closing discs, the two closing discs being respectively arranged at both ends of the drum wall and forming a hollow cylinder with the drum wall; the second rotating shaft passing through the center of the closing discs;

[0017] A plurality of fixed disks, each of which is provided with a plurality of slide grooves in an array;

[0018] There are tongue spoons of the same number as the chute, the inner tubes of the tongue spoons are connected to the fixed plate through a fixing seat, the spoon bodies and center rods of the tongue spoons respectively pass through the drum wall; a slider and a roller are respectively provided on the outer sleeve of each tongue spoon, and the slider is inserted into the chute.

[0019] Furthermore, a limit block and an elastic buffer block are provided in the drum. The limit block is arranged on the fixed disk and is located between the outer sleeve of the tongue spoon and the fixed seat. The elastic buffer block is arranged on the fixed disk or on the inner wall of the drum. The elastic buffer block is located on the front side of the tongue spoon. A pressure block is provided on the front side of the outer sleeve of the tongue spoon, and the pressure block can contact the elastic buffer block.

[0020] Furthermore, an adjustment mechanism is provided in the drum, and the adjustment mechanism includes:

[0021] The number of rotating disks is equal to that of the fixed disks, and the rotating disks are movably connected to the drum wall so as to be able to rotate; each rotating disk is provided with a plurality of arc surfaces, and the arc surfaces are in contact with the roller;

[0022] A driving structure, the driving structure is used to drive the rotating disk to rotate; the driving structure is a driving rod, the driving rod is connected to the plurality of rotating disks; the sealing disk is provided with an avoidance hole and a screw hole, one end of the driving rod passes through the avoidance hole;

[0023] A locking structure, the locking structure is used to keep the rotating disk stationary relative to the drum wall; the locking structure includes a fastener and a fastening screw, the fastener is provided with a limiting hole and a screw groove, the limiting hole is sleeved on one end of the driving rod, and the fastening screw is used to screw into the screw hole from the screw groove and keep the fastener stationary relative to the closing disk.

[0024] When the rotating disk needs to be rotated, the fastening screw is loosened and the driving rod is moved to rotate the rotating disks together. When the rotating disk needs to be kept stationary, the fastening screw is screwed into the screw hole so that the fastener remains stationary relative to the closing disk and the driving rod is also constrained in the limiting hole and remains stationary.

[0025] Furthermore, the inner side of the drum wall is provided with mounting grooves having the same number as the fixed disks, and the plurality of rotating disks are respectively arranged in the mounting grooves, and the rotating disks can rotate in the mounting grooves.

[0026] The present invention provides a seeder, comprising the above-mentioned automatic seeder seeding system, and further comprising:

[0027] A carrier vehicle, comprising a frame, an engine, a transmission shaft, and wheels;

[0028] a transmission system configured to obtain power from a transmission shaft of the carrier vehicle and transmit the power to the first rotating shaft to drive the first rotating shaft to rotate;

[0029] The automatic seeder seeding system is installed on the frame, wherein the first rotating shaft, the second rotating shaft, the second sprocket and the first transmission gear of the seeding mechanism are all installed on the frame through bearings and bearing seats, and the connecting rod of the four-wheel bucket is connected to the frame of the carrier vehicle.

[0030] Furthermore, the carrier vehicle may be a four-wheeled vehicle or a three-wheeled vehicle, such as a tractor.

[0031] The transmission system can be in various forms, as long as it can obtain power from the transmission shaft of the carrier and transmit the power to the roller. In some preferred embodiments, the transmission system includes a first chain, a first gearbox, a second chain, a second gearbox, and a third chain, wherein the first gearbox is connected to the transmission shaft of the carrier via the first chain, the second gearbox is connected to the first gearbox via the second chain, and the first rotating shaft is connected to the second gearbox via the third chain.

[0032] Furthermore, the second gearbox is provided with a clutch, and the power supply to the third chain is cut off when the clutch is disengaged.

[0033] Beneficial effects of the present invention:

[0034] The seeding system of the automatic seeder is provided with a seeding mechanism, and an arc-shaped plate sleeve and an elastic sheet are provided on the four-wheel bucket. Through the cooperation of the elastic dial wheel and the elastic sheet, the seeds in the four-wheel bucket can be dialed while the drum is running, so that the tongue spoon can scoop up the seeds. The sowing mechanism has a simple structure and can keep the drum and the elastic dial wheel in the corresponding running direction without adding an additional driving mechanism. Sowing can be done automatically, which improves the degree of automation. A limit block and an elastic buffer block are provided on the fixed disk on the drum, which can prevent the tongue spoon from being pressed into the drum and unable to come out, and can also buffer the ejection speed of the tongue spoon, avoid damage to the tongue spoon and the four-wheel bucket, and extend the service life of the four-wheel bucket and the drum. A pulley and a track are added to the top of the fixed wall of the four-wheel bucket, which enhances the stability of the four-wheel bucket and makes the four-wheel bucket move up and down less, which is beneficial to the operation of the sowing system. A discharge port and a collection tray are also provided at the bottom of the four-wheel bucket, which is convenient for collecting the remaining seeds released by the four-wheel bucket after sowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The figure is a side structural schematic diagram of an automatic seed drill according to an embodiment of the present invention.

[0036] Figure 2 The figure is a schematic top view of the automatic seed drill according to one embodiment of the present invention.

[0037] Figure 3 The figure is a side structural diagram of an automatic seeder seeding system according to an embodiment of the present invention.

[0038] Figure 4 This is a schematic diagram of the top view of the elastic thumbwheel.

[0039] Figure 5 This is a structural diagram of the dial plate.

[0040] Figure 6 It is a structural diagram of the arc plate sleeve.

[0041] Figure 7 The figure is a schematic diagram of the three-dimensional structure of a four-wheel bucket according to an embodiment of the present invention.

[0042] Figure 8 This is a schematic front view of the structure of a four-wheel bucket according to an embodiment of the present invention.

[0043] Figure 9 The figure is a schematic rear structural diagram of a four-wheel bucket according to an embodiment of the present invention.

[0044] Figure 10 Schematic diagram of the three-dimensional structure of a four-wheel bucket according to another embodiment of the present invention.

[0045] Figure 11 Schematic diagram of the structure of a tongue spoon according to an embodiment of the present invention.

[0046] Figure 12This is a schematic diagram of the tongue spoon installation according to one embodiment of the present invention.

[0047] Figure 13 This is a schematic diagram of the installation of a rotating disk according to an embodiment of the present invention.

[0048] Figure 14 This is a partial cross-sectional schematic diagram of a drum according to an embodiment of the present invention.

[0049] Figure 15 This is a schematic three-dimensional diagram of the installation of a rotating disk according to an embodiment of the present invention.

[0050] Figure 16 This is a schematic structural diagram of the closing disk portion of an embodiment of the present invention.

[0051] In the picture:

[0052] 100-carrier, 101-frame, 102-wheels, 103-engine, 104-drive shaft, 105-steering handle, 106-fuel tank, 107-seat, 108-fender;

[0053] 200- transmission system, 201- first chain, 202- first gearbox, 203- second chain, 204- second gearbox, 205- third chain, 206- clutch lever;

[0054] 300-four-wheel bucket, 301-wheel, 302-bucket body, 3021-fixed wall, 3022-movable wall, 303-adjusting frame, 304-connecting rod, 305-first spring, 306-connecting rod, 307-second spring, 308-guide rod, 309-limiting ring, 310-fixed partition, 311-wheel mounting box, 312-cross bar, 313-first guide column, 314-first guide groove, 315-movable partition, 316-shaft, 317-bolt, 318-nut, 319-second guide column, 320-second guide groove, 321-arc plate sleeve, 322-elastic sheet, 323-limiting strip, 324-fixing lever, 325-elastic band, 326-unloading plate, 327-pulley, 328-track;

[0055] 400- roller, 401- rotating disk, 4011- rotating disk center hole, 4012- arc surface, 402- fixed disk, 4021- weight reduction hole, 4023- fixed disk center hole, 4024- slide groove, 403- roller wall, 4032- mounting groove, 404- tongue spoon, 4041- spoon body, 4042- outer sleeve, 4043- inner tube, 4044- center rod, 4046- fixed plate, 4047- roller bracket, 4048- roller, 4049- slider, 405- fixed seat, 415- sealing disk, 4151- screw hole, 4152- avoidance hole, 406- pressure block, 407- limit block, 408- elastic buffer block;

[0056] 500-bearing;

[0057] 600- seed dialing mechanism, 601- first sprocket, 602- first rotating shaft, 603- elastic dial wheel, 6031- fixed ring seat, 6032- dial plate, 6033- dial wheel, 6034- slot, 604- second sprocket, 605- first transmission gear, 606- second transmission gear, 607- second rotating shaft, 608- elastic sprocket, 609- sliding support;

[0058] 700-driving rod;

[0059] 800-fastener, 801-screw slot, 802-limiting hole, 803-scale line. DETAILED DESCRIPTION

[0060] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0061] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the invention belongs. The words "first", "second" and similar terms used in the specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "an" do not indicate a quantity limitation, but rather indicate the existence of at least one. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0062] Example 1

[0063] like Figures 1 to 9 The automatic planter seeding system shown includes:

[0064] The seed dialing mechanism 600 includes a first sprocket 601, a first rotating shaft 602, a plurality of elastic dial wheels 603, a second sprocket 604, a first transmission gear 605, a second transmission gear 606, and a second rotating shaft 607. The first sprocket 601 is fixed to the first rotating shaft 602, the first sprocket 601 and the second sprocket 604 are connected by a transmission chain, the second sprocket 604 and the first transmission gear 605 are connected by an axis, the first transmission gear 605 and the second transmission gear 606 are meshed, and the second transmission gear 606 is fixed to the second rotating shaft 607; the elastic dial wheel 603 is mounted on the first rotating shaft 602 , the elastic dial wheel 603 is provided with at least one arc-shaped dial plate 6032, one end of the dial plate 6032 is provided with a scale line 803, and is connected to the first rotating shaft 602 through the fixed ring seat 6031, and the end of the dial plate 6032 close to the fixed ring seat 6031 can be set as a U-shaped or arc-shaped clamping plate, and the clamping plate is provided with a slot 6034 for fixing to the fixed ring seat 6031 by means of bolts 317 or the like. Scale lines 803 are provided on both sides of the slot 6034 to facilitate observation and adjustment of the extension length of the dial plate 6032; at least one dial wheel 6033 is provided at the end of the other end of the dial plate 6032, and the dial wheel 6033 can contact the elastic sheet 322 (such as Figure 5 As shown, if one dial wheel is provided, two dial plates are provided for one elastic piece; if two dial wheels are provided, one dial plate is provided for one elastic piece); wherein, the dialing mechanism 600 is further provided with an elastic sprocket 608 and a sliding support 609, the sliding support 609 is fixed on the vehicle frame 101, a vertical slide rail is provided on the sliding support 609, the elastic sprocket 608 is provided in the slide rail, and the elastic sprocket 608 can move vertically along the slide rail; the elastic sprocket 608 is located between the first sprocket 601 and the second sprocket 604, and is used to adjust the tightness of the chain on the first sprocket 601 and the second sprocket 604.

[0065] The roller 400 is mounted on the second rotating shaft 607; the roller 400 includes a roller wall 403, two closing plates 415, a plurality of fixed plates 402, and tongue spoons 404 equal in number to the number of the slide grooves 4024. The two closing plates 415 are respectively arranged at both ends of the roller wall 403 to form a hollow cylinder with the roller wall 403; the second rotating shaft 607 passes through the center of the closing plate 415; the plurality of fixed plates 402 are arranged on the second rotating shaft 607, and each of the fixed plates 402 is provided with a plurality of tongue spoons 404. 02 is provided with a plurality of slide grooves 4024 in a circular array; the inner tube 4043 of the tongue spoon 404 is connected to the fixed plate 402 through a fixing seat 405, and the spoon body 4041 and the center rod 4044 of the tongue spoon 404 respectively pass through the drum wall 403; a slider 4049 and a roller 4048 are respectively provided on the outer sleeve 4042 of each tongue spoon 404, and the roller 4048 is fixed on the outer sleeve 4042 of the tongue spoon 404 through a roller bracket 4047, and the slider 4049 is inserted into the slide groove 4024.

[0066] The four-wheel bucket 300 is connected to the drum 400 by its four wheels 301. The bottom of the four-wheel bucket 300 is provided with an arc-shaped plate sleeve 321, and an elastic piece 322 is embedded in the arc-shaped plate sleeve 321. A limit strip 323 and a half-moon fixed lever 324 are provided in the middle position of the arc-shaped plate sleeve 321. The limit strip 323 is provided with a limit through hole, and the fixed lever 324 is provided with an elastic elastic band 325. One end of the elastic band 325 passes through the limit through hole on the limit strip 323. The hole is connected to the elastic piece 322; the elastic piece 322 can contact the elastic dial wheel 603; wherein, the four-wheel bucket 300 is provided with a discharge port at the bottom, and the discharge port is provided with a discharge plate 326 detachably connected to the four-wheel bucket 300; the discharge plate 326 can be hinged or clamped with the four-wheel bucket 300, and can be detachably fixed by means of bolts 317, etc.; the four-wheel bucket 300 is also provided with a collection tray at the bottom, and the collection tray is located below the discharge port to facilitate the collection of the remaining seeds released by the four-wheel bucket 300. The four-wheel bucket 300 includes a wheel 301, a bucket body 302, a first spring 305, a connecting rod 304, an adjustment frame 303, a connecting rod 306, a fixed partition 310, a movable partition 315, a guide rod 308, a second spring 307 and a limiting ring 309; the two sides of the bucket body 302 are respectively a fixed wall 3021 and a movable wall 3022 hinged at the bottom, and a wheel 301 is respectively provided on both sides of the bottom of the bucket body 302, and a wheel 301 is respectively provided on each movable wall 3022; six connecting rods 304 are fixed to the rear of the bucket body 302, and the first spring 305 and the adjustment frame 303 are provided on the connecting rod 304, and the first spring 305 is sleeved on the connecting rod 304, and one end of the first spring 305 is connected to the bucket body 302, and the other end is connected to the adjustment frame 303; the The adjusting frame 303 is sleeved on the connecting rod 304, and the adjusting frame 303 is hinged to the connecting rod 306, and the connecting rod 306 is movably connected to the frame 101 of the carrier 100; two fixed partitions 310 are arranged in the bucket body 302, and the fixed partitions 310 divide the internal space of the bucket body 302 into three small spaces, and a movable partition 315 is arranged in each small space; the guide rod 308 is arranged on the outside of the movable wall 3022, and the limiting ring 309 is arranged on the outside of the fixed wall 3021, one end of the guide rod 308 is movably connected to the outside of the movable wall 3022, and the other end of the guide rod 308 passes through the limiting ring 309, so that the guide rod 308 is restricted to move in the limiting ring 309; the second spring 307 is sleeved on the guide rod 308, and the initial state of the second spring 307 is in a compressed state. The wheel 301 is arranged on the outside of the movable wall 3022 through the wheel mounting box 311 , and the wheel mounting box 311 is fixedly connected to the movable wall 3022 .The fixed wall 3021 and movable wall 3022 are hinged at their bottoms via a shaft 316. The movable wall 3022 is provided with a first guide slot 314 (an arc-shaped slot centered on the shaft 316). The fixed wall 3021 is provided with a first guide post 313, which is inserted into the first guide slot 314. A crossbar 312 is provided at the top of the bucket body 302. A movable partition 315 is movably connected to the crossbar 312 via a bolt 317 and nut 318. A second guide slot 320 is provided on the movable partition 315. A second guide post 319 is provided on the inner wall of the bucket body 302, which is inserted into the second guide slot 320. The position of the movable partition 315 can be adjusted by adjusting the bolt 317 and nut 318. Pulleys 327 and tracks 328 are provided on both sides of the top of the fixed walls 3021 on both sides and the lower end of the bucket body 302. The pulleys 327 are fixedly connected to the fixed walls 3021. One end of the track 328 is fixedly connected to the vehicle frame 101, and the other end cooperates with the pulleys 327, allowing the pulleys 327 to slide within the tracks 328 (i.e., in this embodiment, the four-wheeled bucket 300 is equipped with four pulleys 327 and four tracks 328). The adjustment frame 303 and the first spring 305 provide for shock absorption and adjustment, while the pulleys 327 and tracks 328 ensure the stability of the four-wheeled bucket 300. A spring can also be provided between each of the upper and lower tracks 328, with one end connected to the bucket body 302 and the other end connected to the vehicle frame 101, to enhance stability.

[0067] Example 2

[0068] like Figures 11 to 16 406 is provided on the front side of the outer sleeve 4042 of the tongue spoon 404, and the pressure block 406 can contact the elastic buffer block 408; the limit block 407 is used to limit the tongue spoon 404 to prevent the tongue spoon 404 from being pressed into the drum 400 and unable to come out; the elastic buffer block 408 can buffer the pop-up speed of the tongue spoon 404 to prevent the tongue spoon 404 and the four-wheel bucket 300 from being damaged.

[0069] The tongue spoon 404 is substantially the same as the tongue spoon 404 disclosed in the invention patent application with publication number CN112715098A, except for the addition of a pressure block 406. Specifically, the tongue spoon 404 comprises an outer sleeve 4042, a spoon body 4041, a fixing plate 4046, a center rod 4044, an inner tube 4043, a long spring, and a pressure block 406. One end of the center rod 4044 is inserted into the inner tube 4043, and the other end extends from the outer sleeve 4042. A long spring is provided on the center rod 4044, and a fixing plate 4046 is provided on the inner tube 4043. The fixing plate 4046 is fixedly connected to the outer sleeve 4042. The spoon body 4041 is fixedly connected to the outer sleeve 4042. 41 is mounted on the outer wall of the front end of the outer tube 4042, and the pressure block 406 is mounted on the outer wall of the outer tube 4042. The outer tube 4042 can slide axially outside the inner tube 4043, and the center rod 4044 can slide axially inside the inner tube 4043. The drum wall 403 is provided with holes corresponding to the scoop body 4041 and center rod 4044 of the tongue scoop 404, through which the scoop body 4041 and center rod 4044 of the tongue scoop 404 extend. In this embodiment, the top surface of the scoop body 4041 of the tongue scoop 404 is rectangular, which is less likely to trap seeds than the conventional pointed shape.

[0070] In this embodiment, the drum 400 is further provided with an adjustment mechanism, which is basically the same as the adjustment mechanism disclosed in the invention patent application with publication number CN112715098A, except that the adjustment tooth grooves on the rotating disk 401 and the adjustment holes on the drum wall 403 are removed; that is, the adjustment mechanism includes: a number of rotating disks 401 equal to the number of the fixed disks 402, a driving structure and a locking structure; the inner side of the drum wall 403 is provided with mounting grooves 4032 equal to the number of the fixed disks 402, and the plurality of rotating disks 401 are respectively arranged in the mounting grooves 4032, and the rotating disks 401 can rotate in the mounting grooves 4032; each of the rotating disks 401 is respectively provided with a plurality of arc surfaces 4012, and the arc surfaces 4012 are in contact with the roller 4048; the driving structure is used to drive the rotating disks 401 to rotate;

[0071] The driving structure is a driving rod 700. In order to make the structure more stable, there are four driving rods 700 in this embodiment, all of which are connected to the rotating disk 401; the closing disk 415 is provided with an avoidance hole 4152 and a screw hole 4151, and one end of the driving rod 700 passes through the avoidance hole 4152; the locking structure is used to keep the rotating disk 401 stationary relative to the drum wall 403; the locking structure includes a fastener 800 and a fastening screw, and the fastener 800 is provided with a limiting hole 802 and a screw groove 801, and the limiting hole 802 is sleeved on one end of the driving rod 700, and the fastening screw is used to screw into the screw hole 4151 from the screw groove 801 and keep the fastener 800 stationary relative to the closing disk 415, and a scale line 803 is provided on the screw groove 801. When the rotating disk 401 needs to be rotated, the fastening screw is loosened and the driving rod 700 is moved to rotate the rotating disks 401 together. When the rotating disk 401 needs to be kept stationary, the fastening screw is screwed into the screw hole 4151 so that the fastener 800 remains stationary relative to the closing disk 415, and the driving rod 700 is also constrained in the limiting hole 802 and remains stationary.

[0072] Example 3

[0073] The present invention provides a seeder, comprising the above-mentioned automatic seeder seeding system, and further comprising:

[0074] The carrier 100 includes a frame 101, an engine 103, a transmission shaft 104, and wheels 102;

[0075] a transmission system 200 configured to obtain power from the transmission shaft 104 of the carrier 100 and transmit the power to the first rotating shaft 602 to drive the first rotating shaft 602 to rotate;

[0076] The automatic seeder seeding system is installed on the frame 101, wherein the first rotating shaft 602, the second rotating shaft 607, the second sprocket 604, and the first transmission gear 605 of the seeding mechanism 600 are all installed on the frame 101 through bearings 500 and bearing seats, and the connecting rod 306 of the four-wheel bucket 300 is connected to the frame 101 of the carrier 100.

[0077] The transport vehicle 100 is a conventional vehicle and generally includes a fuel tank 106 for supplying fuel to the engine 103 and seats 107 for passengers to sit on. The engine 103 of the transport vehicle 100 generates power and drives the wheels 102 through the transmission shaft 104. The transport vehicle 100 can be a four-wheeled vehicle or a three-wheeled vehicle. Figure 1 and 2The example of the transport vehicle 100 being a three-wheeled vehicle is shown. The steering device of the transport vehicle 100 can be a steering handle 105 or a power steering wheel. Fenders 108 can be provided above the wheels 102 of the transport vehicle 100.

[0078] See also Figure 1 and 2 The transmission system 200 includes a first chain 201, a first gearbox 202, a second chain 203, a second gearbox 204, and a third chain 205. The first gearbox 202 is connected to the transmission shaft 104 of the vehicle 100 via the first chain 201, the second gearbox 204 is connected to the first gearbox 202 via the second chain 203, and the first rotating shaft 602 is connected to the second gearbox 204 via the third chain 205. The bottoms of the first and second gearboxes 202, 204 are fixedly connected to the frame 101 of the vehicle 100. A first ring gear is disposed on the outer wall of the transmission shaft 104 of the vehicle 100. One end of the first chain 201 is mounted on the first ring gear, and the other end of the first chain 201 is mounted on the input gear of the first gearbox 202. A single-speed flywheel can be mounted on the input shaft of the first gearbox 202, so that when the vehicle 100 moves backward, it will not cause the roller 400 to rotate. One end of the second chain 203 is looped over the output gear of the first gearbox 202, and the other end is looped over the input gear of the second gearbox 204. A second ring gear is provided on the outer wall of the first rotating shaft 602. One end of the third chain 205 is looped over the output gear of the second gearbox 204, and the other end is looped over the second ring gear. A clutch is provided on the second gearbox 204, which cuts off the power supply to the third chain 205 when the clutch is disengaged. The clutch is connected to a clutch lever 206, which extends to the side of the seat 107 to control the clutch. Because the transmission shaft 104 of the transport vehicle 100 rotates at a relatively high speed, both the first and second gearboxes 202 and 204 utilize reduction gearboxes. By changing the speed and resizing the sprockets, the transmission speed can be adjusted, resulting in a rotational speed suitable for sowing for the first and second rotating shafts 602 and 607.

[0079] The seeding mechanism 600 may be the seeding mechanism 600 in Example 1 or Example 2; the four-wheel bucket 300 may also not be provided with a fixed partition 310 for separation, and other structures remain unchanged, and may be provided with a plurality of small-volume single buckets (such as Figure 10 As shown); Of course, a funnel can be provided under the drum 400 to make the seeds land more accurately; no further details will be given here. In order to improve the sowing efficiency, the number of the drum 400 and the four-wheel bucket 300 can be increased. Figure 2An example is shown in which the number of rollers 400 and four-wheel buckets 300 is two; the four-wheel bucket 300a is connected to the roller 400a, and the four-wheel bucket 300b is connected to the roller 400b, and the roller 400a and the roller 400b are respectively installed on the frame 101 of the carrier 100 through the second rotating shaft 607 and the bearing 500; the first rotating shaft 602 and the second gearbox 204 are respectively connected through the third chain 205a and the third chain 205b.

[0080] Working principle of the seeder:

[0081] The automatic seed drill sowing system (sowing mechanism 600, roller 400, four-wheel bucket 300, etc.) is carried on the carrier 100, and the transmission system 200 is used to obtain power for driving the automatic seed drill sowing system from the carrier 100; after the engine 103 is started, the wheel 102 is driven to rotate through the transmission shaft 104, and at the same time, the transmission shaft 104 drives the first chain 201, and the first chain 201 drives the input gear of the first gearbox 202; after the first gearbox 202 is decelerated, the output gear drives the second chain 203, and the second chain 203 drives the input gear of the second gearbox 204; after the second gearbox 204 is decelerated, the output gear drives the first rotating shaft 602 to rotate, the first rotating shaft 602 drives the first sprocket 601 and the elastic paddle wheel 603 to rotate, the first sprocket 601 drives the second sprocket 604 and the first transmission gear 605 to rotate through the transmission chain, and the first transmission gear 605 drives the second transmission gear 606 to rotate in the opposite direction, thereby driving the second rotating shaft 607 to rotate. The roller 400 connected to the second rotating shaft 607 rotates together, and the rotation direction of the roller 400 is opposite to that of the elastic dial 603, so that the roller 400 keeps rotating from bottom to top, ensuring that the tongue spoon 404 can scoop up the seeds; the tongue spoon 404 scoops up the seeds from the four-wheel bucket 300 and pours them onto the ground, thereby sowing; while the elastic dial 603 rotates, it can also move the elastic sheet 322, making the elastic sheet 322 expand and contract. The tension of the elastic band 325 makes it easier for the elastic sheet 322 to return to its original position, which is convenient for seeding. The seeds behind the movable partition 315 slide toward the elastic sheet 322 under the action of gravity, so that the rice seeds can be continuously pushed against the roller 400, which is conducive to the tongue spoon 404 to scoop up the seeds (the working principle of the tongue spoon 404 is the same as that of the tongue spoon 404 of the invention patent CN107155467B, except that a pressure block 406, an elastic buffer block 408 and a limit block 407 are additionally provided to prevent the tongue spoon 404 from being pressed into the roller 400 and unable to come out, which can also extend the service life of the seeder).

Claims

1. The automatic seed drill sowing system is characterized by: include: A seed dialing mechanism, comprising a first sprocket, a first rotating shaft, a plurality of elastic dial wheels, a second sprocket, a first transmission gear, a second transmission gear, and a second rotating shaft, wherein the first sprocket is fixed to the first rotating shaft, the first sprocket and the second sprocket are connected by a transmission chain, the second sprocket and the first transmission gear are connected by a shaft, the first transmission gear and the second transmission gear are meshed, and the second transmission gear is fixed to the second rotating shaft; the elastic dial wheel is mounted on the first rotating shaft; a roller, the roller being mounted on the second rotating shaft; The four-wheel bucket is connected to the drum in a rolling manner through its four wheels. The bottom of the four-wheel bucket is provided with an arc-shaped plate sleeve, an elastic piece is embedded in the arc-shaped plate sleeve, a limit strip and a half-moon-shaped fixing lever are provided on the arc-shaped plate sleeve, a limit through-hole is provided on the limit strip, an elastic elastic band is provided on the fixing lever, one end of the elastic band passes through the limit through-hole on the limit strip and is connected to the elastic piece; the elastic piece can contact the elastic dial wheel; The elastic thumbwheel is provided with at least one arc-shaped dial plate, one end of which is provided with a scale line and is detachably connected to the first rotating shaft through a fixed ring seat; the other end of the dial plate is provided with at least one thumbwheel, which can contact the elastic sheet; The seed shifting mechanism is also provided with an elastic sprocket and a sliding support. The sliding support is provided with a vertical slide rail. The elastic sprocket is arranged in the slide rail and can move vertically along the slide rail. The sliding support and the elastic sprocket are located between the first sprocket and the second sprocket. The elastic sprocket is used to adjust the tightness of the chain on the first sprocket and the second sprocket.

2. The automatic seed drill sowing system according to claim 1, characterized in that: A discharge port is provided at the bottom of the four-wheel bucket, and a discharge plate detachably connected to the four-wheel bucket is provided at the discharge port.

3. The automatic seed drill sowing system according to claim 2, characterized in that: A collecting tray is also provided at the bottom of the four-wheel bucket. The collecting tray is located below the discharge port and is convenient for collecting the remaining seeds discharged by the four-wheel bucket.

4. The automatic seed drill sowing system according to claim 1, characterized in that: The drum comprises: Drum wall; Two closing discs, the two closing discs being respectively arranged at both ends of the drum wall and forming a hollow cylinder with the drum wall; the second rotating shaft passing through the center of the closing discs; A plurality of fixed disks, each of which is provided with a plurality of slide grooves in an array; There are tongue spoons of the same number as the chute, the inner tubes of the tongue spoons are connected to the fixed plate through a fixing seat, the spoon bodies and center rods of the tongue spoons respectively pass through the drum wall; a slider and a roller are respectively provided on the outer sleeve of each tongue spoon, and the slider is inserted into the chute.

5. The automatic seed drill sowing system according to claim 4, characterized in that: The drum is also provided with a limit block and an elastic buffer block. The limit block is arranged on the fixed disk and is located between the outer sleeve of the tongue spoon and the fixed seat. The elastic buffer block is arranged on the fixed disk or on the inner wall of the drum. The elastic buffer block is located on the front side of the tongue spoon. A pressure block is provided on the front side of the outer sleeve of the tongue spoon, and the pressure block can contact the elastic buffer block.

6. A seed drill, characterized in that: The automatic seed drill sowing system according to any one of claims 1 to 5 further comprises: A carrier vehicle, comprising a frame, an engine, a transmission shaft, and wheels; a transmission system configured to obtain power from a transmission shaft of the carrier vehicle and transmit the power to the first rotating shaft to drive the first rotating shaft to rotate; The automatic seeder seeding system is installed on the frame, wherein the first rotating shaft, the second rotating shaft, the second sprocket and the first transmission gear of the seeding mechanism are all installed on the frame through bearings and bearing seats, and the four-wheel bucket is connected to the frame of the carrier vehicle through its own connecting rod.

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