Wheat uniform sowing machine

Abstract

The invention relates to a wheat uniform sowing machine which is used for improving the sowing uniformity and accuracy of wheat seeds and comprises a sowing machine body and a plurality of sowing assemblies arranged at intervals in an array mode in the width direction, each sowing assembly comprises a seed discharging hopper, a seed suction roller, a driving mechanism and a sowing pipe, and a seed outlet is formed in one side of each seed discharging hopper; the seed suction roller is rotatably arranged at the seed outlet, the rolling surface of the seed suction roller is attached to the seed outlet, seed suction holes are annularly distributed in the rolling surface of the seed suction roller at intervals in the circumferential direction, a negative pressure space can be formed inside the seed suction roller relative to the outside, and the seed suction holes are all communicated with the negative pressure space; the driving mechanism is in transmission connection with the seed suction roller, so that the seed suction holes can suck single seeds during rotation of the seed suction roller; a seed shifting piece is arranged at one end of the seeding pipe and located on the moving path of the seed suction holes, one side of the seed shifting piece is close to the seed suction roller, and the seed shifting piece is used for guiding wheat seeds at the seed suction holes to enter the seeding pipe and be seeded into the seeding furrows by the seeding pipe.

Description

Technical Field

[0001] The present application belongs to the technical field of crop sowing, and in particular relates to a wheat seeding machine. Background Art

[0002] At present, wheat sowing is usually carried out by drill sowing. After the drill digs a furrow on the fully plowed land, the wheat seeds are evenly spread in the furrow according to a certain row spacing and depth, and then covered with soil and vibrated. In order to ensure that the wheat has sufficient nutrition, a certain amount of organic fertilizer and chemical fertilizer can be evenly spread in the same way as sowing wheat, which can improve the germination rate and disease resistance of the seeds. In the process of wheat sowing, efforts should be made to improve the uniformity of seed spreading. On the premise of ensuring that the seeds are all good quality, the seeds should be spread evenly according to the row spacing and plant spacing as much as possible, which can help reduce ground evaporation, ensure that the wheat seedlings have sufficient nutrition and water, avoid wheat from being too crowded, and ensure the quality of wheat growth, thereby achieving the effect of saving water and increasing production.

[0003] In the prior art, a Chinese utility model with publication number CN209151509U discloses a wheat uniform sowing machine, including a sowing mechanism, the sowing mechanism including a wheat seed box, a sowing roller, a wheat seed sowing tube, and a uniform sowing device. The wheat seed box is arranged on a frame, a discharge nozzle is arranged at the lower end of the sowing box, a through hole is arranged on the side wall of the discharge nozzle, the sowing roller is sleeved and connected with the through hole on the discharge nozzle, the diameter of the sowing roller matches the length of the discharge nozzle to prevent the wheat seeds from flowing out of the gap between the discharge nozzle and the sowing roller, and grooves are evenly arranged on the sowing roller. When the sowing roller rotates, the wheat seeds flow out from the groove, the feed port of the wheat seed sowing tube is located directly below the discharge nozzle of the sowing box, the wheat seeds enter the wheat seed sowing tube from the wheat seed box, and the discharge port of the wheat seed sowing tube is connected with the feed port of the uniform sower. The upper end of the uniform sower is tubular, and the lower end of the uniform sower is provided with a first uniform sowing plate and a second uniform sowing plate. The wheat seeds fall from the upper end of the uniform sower onto the first uniform sowing plate, and the first uniform sowing plate and the second uniform sowing plate have an angle, and the second uniform sowing plate is inclined downward, and the wheat seeds fall to the ground after the collision and rebound of the first uniform sowing plate and the second uniform sowing plate. Although the sowing mechanism of the wheat uniform sowing machine can improve the discreteness of wheat sowing, it is easy to make part of the wheat rebound outside the sowing furrow during the rebound of the wheat seeds, so that the part of the seeds cannot be buried and fertilized, resulting in seed waste; and because there is no precise control measure for the amount of wheat seeds fed, there is still a certain probability that some seeds will be crowded with each other, so that the spreading of the wheat seeds cannot be evenly distributed according to the planting spacing and plant spacing, resulting in low sowing accuracy. Summary of the invention

[0004] Based on the above-mentioned background technical needs, the present application provides a wheat uniform seeder, which solves the problem that the existing seeder easily causes part of the wheat to rebound outside the sowing furrow, resulting in the inability of these seeds to be buried and fertilized, leading to seed waste; and since there is no precise control measure for the amount of wheat seeds fed, there is still a certain probability that some seeds will be crowded with each other, resulting in the inability to evenly distribute the wheat seeds according to the planting spacing and plant spacing, resulting in low sowing accuracy.

[0005] In order to achieve the above purpose, the technical solution of this application is: A wheat seeding machine comprises a seeding machine body and a seeding assembly, wherein the seeding machine body comprises a walking frame and a tillage mechanism, a fertilization mechanism, a soil covering mechanism and a ground leveling mechanism sequentially arranged on the walking frame; the number of the seeding assemblies is several, and the several seeding assemblies are arranged in an array between the fertilization mechanism and the soil covering mechanism along the width extension direction of the walking frame; the seeding assembly comprises a seed feeding hopper, a seed suction drum, a driving mechanism and a seeding tube; a seed outlet is provided at the bottom of the seed feeding hopper, and the seed suction drum can be rotatably arranged at the seed outlet and its rolling surface is aligned with the seed outlet. The seed outlets are relatively fitted, and the rolling surface of the seed suction drum is annularly spaced around the circumference with seed suction holes distributed at intervals, the interior of the seed suction drum forms a negative pressure space relative to the exterior, the seed suction holes are connected to the negative pressure space, the driving mechanism is transmission-connected to the seed suction drum, and the driving mechanism is used to control the rotation speed of the seed suction drum; a seed-moving piece is provided at one end of the sowing tube, the seed-moving piece is located on the moving path of the seed suction hole and one side of it is close to the seed suction drum, the seed-moving piece is used to guide the wheat seeds at the seed suction hole into the sowing tube, and the other end of the sowing tube extends along the gravity direction.

[0006] Preferably, the driving mechanism includes a frequency converter, a driving motor and a reducer, the frequency converter is electrically connected to the driving motor, the driving shaft of the driving motor is transmission-connected to the seed suction drum through the reducer, and the driving motor is used to drive the seed suction drum to rotate at different speeds based on different speed control signals issued by the frequency converter.

[0007] Preferably, the wheat seeder also includes an exhaust component, which includes an air pump, an air flow diverter and a plurality of exhaust pipes. The air inlet of the air pump is connected to the plurality of exhaust pipes through the air flow diverter. An air outlet is provided on one side of the seed suction drum, one side of the air outlet is connected to the negative pressure space, and the other side is sealed and rotatably connected to the exhaust pipe.

[0008] Preferably, the seed-moving member includes a fixed plate and bristles, the fixed plate being inserted along the gravity direction on the inner side of one end of the sowing tube adjacent to the seed suction drum, the bristles being densely laid in a plate-like shape on one side of the fixed plate with one end thereof close to the rolling surface of the seed suction drum, and the laying width of the bristles being able to at least cover the aperture of any of the seed suction holes.

[0009] Preferably, the rolling surface of the seed suction roller is provided with a positioning groove in an annular shape along the circumferential direction, the seed suction holes are arranged along the extension direction of the positioning groove, one end of the bristle extends into the positioning groove, and the laying width of the bristle is not greater than the width of the positioning groove.

[0010] Preferably, the seed suction holes are distributed in a plurality of groups at intervals along the axial direction of the seed suction drum, the number of the sowing tubes is the same as the number of the groups of the seed suction holes, and any sowing tube corresponds to any group of the seed suction holes.

[0011] Preferably, the sowing assembly further comprises a row spacing adjustment mechanism, which is cooperatively connected with one end of the sowing tube away from the seed suction drum, and is used to adjust the spacing between adjacent ends of the sowing tube away from the seed suction drum.

[0012] Preferably, the row spacing adjustment mechanism includes a suspension beam, a transverse sliding bar and several groups of disc-type furrow openers, one end of the suspension beam is connected to the seeder body, and the other end is fixedly connected to at least one of the several groups of disc-type furrow openers or the transverse sliding bar, the disc-type furrow openers are distributed at intervals along the transverse sliding bar and are all slidably connected to the transverse sliding bar in the transverse direction, and the end of the sowing tube away from the seed suction drum is connected to the disc-type furrow openers one by one.

[0013] Preferably, the sowing assembly also includes a seed storage chamber, which is clamped on one side of the seed hopper, and the seed suction roller is located inside the seed storage chamber. A through hole is provided at the bottom of the seed storage chamber, and the sowing tube passes through the through hole and is sealed and connected to the through hole.

[0014] Preferably, the internal space of the seed storage chamber is funnel-shaped, and a discharge port is provided at the bottom of the seed storage chamber spaced apart from the through hole, a material blocking door is hinged at the discharge port, and the material blocking door can rotate around a hinge part between a first position and a second position.

[0015] By adopting the above technical solution, compared with the prior art, the present application has at least the following beneficial effects: 1. As the seeder body moves on the land, the driving mechanism controls the rotation speed of the seed suction roller to absorb wheat seeds, and cooperates with the seed removing member to successively remove single seeds from the seed suction hole and sow them along the sowing groove through the sowing tube, which can effectively prevent the wheat seeds from falling outside the sowing groove and avoid seed waste.

[0016] 2. When the circumference of a seed moved by the seed suction roller during the time of sowing a single seed is equal to the set sowing spacing, the wheat seeder can sow seeds one by one according to the set sowing spacing, which can not only achieve the effect of accurately controlling the sowing amount, but also avoid the situation where seeds are close to each other during row sowing; and several of the sowing components arranged in a transverse array along the seeder body can synchronously perform single-seed sowing, so that wheat seeds are planted according to the row sowing spacing. In summary, the uniformity and accuracy of wheat sowing can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side structural schematic diagram of the wheat seeding machine in the embodiment.

[0018] Figure 2 It is a partial schematic diagram of the front view of the sowing component in the embodiment.

[0019] Figure 3 It is a partial cross-sectional view AA of the sowing assembly in the embodiment.

[0020] Figure 4 It is a schematic diagram of the partial structure of the sowing component in the embodiment.

[0021] Figure 5 It is a partial enlarged view B of the sowing component in the embodiment.

[0022] Figure 6 It is a partial schematic diagram of the row spacing adjustment mechanism in the embodiment.

[0023] Figure 7 It is a partial schematic top view of the air extraction component in the embodiment.

[0024] Figure 8 It is a partial schematic diagram of the seed storage chamber in the embodiment.

[0025] In the figure: a seeder body 10, a walking frame 11, a tillage mechanism 12, a fertilizing mechanism 13, a soil covering mechanism 14, a soil leveling mechanism 15, a sowing assembly 20, a seed hopper 21, a seed outlet 211, a seed suction drum 22, a seed suction hole 221, a positioning groove 222, an air outlet 223, a driving mechanism 23, a frequency converter 231, a driving motor 232, a reducer 233, a sowing tube 24, a seed dialing piece 25, a fixing plate 251, bristles 252, a row spacing adjustment mechanism 26, a suspension beam 261, a transverse slide bar 262, a disc-type furrow opener 263, a seed storage chamber 27, a through hole 271, a discharge port 272, a material blocking door 273, a guide groove 2731, an exhaust assembly 30, an air pump 31, an air flow diverter 32, and an exhaust pipe 33.

[0026] It should be noted that in order to show more details of the wheat seeding machine in this application and help people better understand the content of this application, the above-mentioned Figure 1-8 Some of the drawings in the drawings are partially cut off, partially cut away, and partially omitted. For example, in order to show the structure of the seed suction drum 22, the attached Figure 2 and attached Figure 4 Part of the seed storage chamber 27 is omitted; in order to show the connection relationship between the seeding member 25 and the sowing tube 24, the attached Figure 5 One of the sowing tubes 24 is partially cut away; in order to reduce the scale of the drawings and show more details, the attached Figure 2 , Attachment Figure 4 And attached Figure 7 Partial partition treatments have been made respectively, and the above treatments will not have a negative impact on the product details to be displayed in this application. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The technical solution of the present application will be further described below in conjunction with the drawings of the embodiments of the present application, and the present application is not limited to the following specific implementation methods.

[0028] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present application, it should be understood that if there are terms such as "upper", "lower", "inner", "outer", "left", "right", "front", "rear", "top", "bottom" and the like indicating directions or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the structure or component referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present patent, and for those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0029] The following is combined with Figure 1 To Attachment Figure 8 And specific embodiments further describe the present application in detail.

[0030] The present application discloses a wheat uniform seeding machine, including a seeding machine body 10 and a plurality of seeding assemblies 20, wherein the plurality of seeding assemblies 20 are arranged in an array along the width extension direction of the seeding machine body 10, and any seeding assembly 20 can control the wheat seeding amount to realize single-grain wheat seeding. The array arrangement of a plurality of seeding assemblies 20 can increase the seeding width and improve the seeding efficiency. Specifically, the seeding machine body 10 includes a walking frame 11 for active movement or towed movement by a traction device (such as a tractor), a tillage mechanism 12 arranged at the bottom of the front side of the walking frame 11, a fertilizer mechanism 13 arranged on the upper side of the walking frame 11 and connected to the tillage mechanism 12 through a fertilizer pipe, a soil covering mechanism 14 arranged at the bottom of the walking frame 11 and located behind the tillage mechanism 12, and a soil leveling mechanism 15 arranged behind the soil covering mechanism 14, wherein the seeding assembly 20 is arranged on one side of the walking frame 11 and between the tillage mechanism 12 and the soil covering mechanism 14, and can sow in the furrow opened by the tillage mechanism 12.

[0031] The sowing assembly 20 includes a seed feeding hopper 21, a seed suction drum 22, a driving mechanism 23 and a sowing tube 24. The bottom of the seed feeding hopper 21 is provided with a seed outlet 211 which can fit with the rolling surface of the seed suction drum 22. The top of the seed feeding hopper 21 is connected to the seed storage bin. The seed feeding hopper 21 can discharge the seeds in the seed storage bin along the direction of gravity and approach the seed suction drum 22. The rolling surface of the seed suction drum 22 is provided with a plurality of seed suction holes 221 at annular intervals around the circumference, and the interior of the seed suction drum 22 can form a negative pressure space through the vacuum principle, and the seed suction holes 221 are all connected to the negative pressure space. Brackets are provided on both sides of the seed feeding hopper 21, and the brackets extend toward the discharge direction of the seed outlet 211. The seed roller 22 is rotatably arranged at the seed outlet 211 through a bracket, and its (referring to the seed suction roller 22) rolling surface is matched with the seed outlet 211, that is, the rolling surface can cover the outer side of the seed outlet 211 during rotation. The driving shaft of the driving mechanism 23 is transmission-connected to the bottom surface of one side of the seed suction roller 22, and is used to drive the seed suction roller 22 to rotate, so that the seed suction roller 22 absorbs the wheat seeds to the seed suction hole 221 during rotation; one end of the sowing tube 24 extends upward to a position close to the lower side of the seed suction roller 22, and a seed removing member 25 is provided at this end, and the seed removing member 25 is located on the moving path of the seed suction hole 221 and is at least partially close to the rolling surface of the seed suction roller 22, and the other end of the sowing tube 24 extends downward along the direction of gravity.

[0032] It should be noted that, first, in order to consider that the above-mentioned wheat seeding machine can achieve the speed of seed suction and seed discharge by changing the rotation speed of the seed suction drum 22, the above-mentioned driving mechanism 23 can provide different power for the seed suction drum 22 to achieve the change of rotation speed, so as to achieve the effect of adjusting the sowing spacing; second, in order to enable the seed-pickup member 25 to be used to guide the wheat seeds at the seed suction hole 221 into the sowing tube 24 and fall into the groove opened by the above-mentioned sowing machine body 10 along the sowing tube 24, although the seed-pickup member 25 is fixed to one end of the sowing tube 24, it can ensure that the pipe mouth of the sowing tube 24 is open, so that the wheat seeds removed from the seed suction port by the seed-pickup member 25 can enter the sowing tube 24; third, in order to prevent the wheat seeds from being sucked into the seed suction drum 22, the opening diameter of the seed suction hole 221 should be at least smaller than the average particle size of the wheat seeds, and in order to prevent the seed suction hole 221 from being blocked, the wheat seeds stored in the seed lower hopper 21 should at least undergo strict dust removal, particle size selection and other optimization treatments in advance, so that the seeds are at a relatively clean level with uniform particle size.

[0033] When using the above-mentioned wheat seeder, after completing the preparatory operations or processes before sowing such as ploughing, furrowing, and fertilizing, the seeder body 10 carries a plurality of sowing assemblies 20 arranged along a horizontal array to be sown along the furrow to be sown. The specific steps are as follows: first, a negative pressure space is generated in the seed suction drum 22 through the vacuum principle, and then the driving mechanism 23 is started, so that the driving mechanism 23 drives the seed suction drum to rotate at a set speed, so that each seed suction hole 221 passing through the seed outlet 211 can absorb a wheat seed. When the seed suction hole 221 with the wheat seed absorbed passes through the seed removing part 25, the seed removing part 25 gradually removes the wheat seed from the seed suction hole 221. When the wheat seed is misaligned with the seed suction hole 221 and falls to the sowing tube 24 due to gravity, it is gradually sown into the furrow by the sowing tube 24.

[0034] The use of the wheat seed drill has at least the following beneficial effects: 1. As the seeder body 10 travels on the land, the driving mechanism 23 controls the rotation speed of the seed suction drum 22 to absorb wheat seeds, and cooperates with the seed removing member 25 to successively remove single seeds from the seed suction hole 221 and sow them along the sowing furrow through the sowing tube 24, which can effectively prevent the wheat seeds from falling outside the sowing furrow and avoid seed waste.

[0035] 2. When the circumference of a seed moved by the seed suction roller 22 during the time of sowing a single seed is equal to the set sowing spacing, the wheat seeder can sow seeds one by one according to the set sowing spacing, which can not only achieve the effect of accurately controlling the sowing amount, but also avoid the situation where seeds are close to each other during the row sowing process; and several sowing components 20 arranged in a horizontal array along the seeder body 10 can synchronously perform single-seed sowing, so that wheat seeds are planted according to the row sowing spacing. In summary, it can achieve the effect of improving the uniformity and sowing accuracy of wheat sowing.

[0036] In addition, the present application also provides some more specific implementation methods to improve the above-mentioned wheat seeder.

[0037] Furthermore, the driving mechanism includes a frequency converter 231, a driving motor 232 and a reducer 233. The frequency converter 231 is electrically connected to the driving motor 232. The frequency converter 231 can achieve precise control of the speed of the driving motor 232 based on adjusting the output voltage and frequency; the output shaft of the driving motor 232 is connected to the input shaft of the reducer 233, and the output shaft of the reducer 233 is connected to the seed suction drum 22 in a transmission manner. The driving motor 232 changes speed based on the electrical signal of different speed control sent by the frequency converter 231, and then adjusts the speed of the seed suction drum 22 to a suitable speed through the reducer 233, so that it can rotate stably and ensure that each seed suction hole 221 can absorb wheat seeds. Specifically, the reducer 233 includes a protective box and a reduction gear set arranged in the protective box (the specific model and specification of the reducer 233 can be adapted according to the model, power and other specifications of the driving motor 232 in this application. Since it is not a necessary technical feature to realize this application, its specific structure is omitted in the drawings of this application and will not be repeated hereafter).

[0038] In a more preferred embodiment, the above-mentioned wheat seeder also includes an exhaust component 30, which is used to vacuum the seed suction drum 22. The exhaust component 30 includes an air pump 31, an air flow diverter 32 and an exhaust pipe 33, wherein the air inlet of the air pump 31 is connected to a plurality of exhaust pipes 33 through the air flow diverter 32, and an air outlet 223 is provided on one side of the seed suction drum 22, one side of the air outlet 223 is connected to the negative pressure space, and the other side is sealed and rotatably connected to the exhaust pipe 33 through a rotating joint. Specifically, the air flow splitter 32 is provided with a plurality of air path interconnected or independent air inlets, which are connected to the air outlet 223 of each seed suction drum 22 through the air extraction pipe 33. By turning on the air pump 31 to extract air, a negative pressure space is synchronously formed in the plurality of seed suction drums 22. In addition, the rotary joint used to rotatably and sealably connect the air extraction pipe 33 and the air outlet 223 has the functions of local rotation and connecting the pipeline, such as the publication number CN208982847U The Chinese utility model discloses a rotary joint with good connection sealing performance, an inner tube is provided inside the rotary joint, and the rotary joint transports fluid through the inner tube, and the rotary joint consists of a main connector and an auxiliary connector, the main connector and the auxiliary connector can rotate relative to each other, and the surfaces of the main connector and the auxiliary connector are provided with threads for connecting the pipelines at both ends, the main connector and the auxiliary connector are respectively connected to the air outlet 223 and the exhaust pipe 33 through threads, when the seed suction drum 22 rotates, the main connector rotates relative to the auxiliary connector, and air can be extracted outward through the inner tube, so that a negative pressure space can be formed inside the seed suction drum 22 (because the specific structure of the rotary joint is not a necessary technical feature to realize the present application, its structural appearance is omitted in the drawings of the present application and will not be repeated hereafter).

[0039] In one embodiment, the seed removing member 25 includes a fixing plate 251 and bristles 252. Specifically, a slot is downwardly opened on the inner side of one end of the sowing tube 24 close to the seed suction drum 22, and the fixing plate 251 is inserted into the slot along the direction of gravity. The bristles 252 are densely laid on one side of the fixing plate 251 adjacent to the seed suction drum 22 and form a plate-like structure, and one end of the bristles 252 is tightly attached to the rolling surface of the seed suction drum 22, and the laying width of the bristles 252 corresponding to any group of seed suction holes 221 can at least cover the aperture of any of the seed suction holes 221.

[0040] The beneficial effect of using the seed-prying piece 25 of the above structure is: when the bristles 252 close to the rolling surface of the seed suction drum 22 come into contact with the wheat seeds adsorbed by the seed suction holes 221, due to the soft texture of the bristles 252, after the bristles 252 push the wheat seeds away from the seed suction holes 221, part of the bristles 252 are sucked into the seed suction holes 221, which can prevent the wheat seeds just pushed away from being adsorbed again by the seed suction holes 221, and the friction force of the bristles 252 on the rolling surface is small, which can reduce the friction on the seed suction drum 22 while ensuring the wheat seeds are pushed away, thereby extending the service life of the seed suction drum 22.

[0041] On the basis of the above-mentioned embodiment, the rolling surface of the seed suction roller 22 is provided with a positioning groove 222 in a ring shape along the circumferential direction, each group of seed suction holes 221 is arranged along the extension direction of the positioning groove 222, and one end of the bristles 252 extends into the positioning groove 222, and the laying width of the bristles 252 is not greater than the width of the positioning groove 222.

[0042] When using the above-mentioned wheat seeder, the positioning groove 222 can concentrate the suction force of the seed suction hole 221 around the seed suction hole 221, so that the adsorbed wheat seeds are distributed along the positioning groove 222, and the bristles 252 can cover the positioning groove 222 along the width direction of the positioning groove 222, which can ensure that the wheat seeds are separated from the seed suction hole 221, and can cooperate with the positioning groove 222 to allow the peeled seeds to accurately enter the sowing tube 24.

[0043] Furthermore, in order to improve the sowing efficiency of a single sowing assembly 20, the plurality of seed suction holes 221 arranged in an annular shape are arranged in a plurality of groups at axial intervals along the seed suction drum 22, and the number of the seeding tubes 24 is the same as the number of groups of the seed suction holes 221, and any sowing tube 24 is arranged in correspondence with any group of seed suction holes 221. The specific layout is as follows: when a seed drill body 10 with a larger width value is selected to sow a large area of ​​planting land, in order to improve the sowing efficiency and make full use of the planting land, the operator assembles a seed suction roller 22 with a length greater than 2 times the row sowing spacing for the sowing component 20. Due to its long length, the seed suction roller 22 can be distributed with 2 to 3 groups of seed suction holes 221 along its axial direction, and the spacing between each group of seed suction holes 221 is equal to the row sowing spacing, that is, the furrowing spacing; at the same time, according to the number of groups of seed suction holes 221, a corresponding number of sowing tubes 24 are matched to the seed suction roller 22. The sowing tube 24 can preferably be a hose, such as a corrugated plastic hose or a stainless steel hose, so as to adjust the spacing and sowing angle of the lower end of the sowing tube 24; in addition, since the number of seed suction holes 221 is increased, the vacuum equipment used to generate a negative pressure space should also appropriately increase the exhaust power so that each seed suction hole 221 can maintain the set suction force to achieve the effect of sucking wheat seeds.

[0044] The use of the above structural configuration can improve the overall sowing amount and sowing efficiency of the above wheat seeder, increase the sowing width and the sowing area per unit time, and make the wheat seeder more suitable for sowing on a large area of ​​flat ground.

[0045] On the basis of the above embodiments, in order to enable the above-mentioned wheat seeder to adjust the sowing spacing according to the row spacing of the strip sowing to improve the adaptability of the wheat seeder, the above-mentioned sowing component 20 also includes a row spacing adjustment mechanism 26, and the row spacing adjustment mechanism 26 can be set in several groups. Any group of row spacing adjustment mechanisms 26 is at least connected to each corresponding sowing tube 24 set in any sowing component 20. The distance between the lower ends of adjacent sowing tubes 24 can be adjusted through the row spacing adjustment mechanism 26, so that the sowing tubes 24 can adjust the sowing spacing according to the sowing needs.

[0046] Specifically, in a preferred embodiment, the row spacing adjustment mechanism 26 includes a suspension beam 261, a transverse slide bar 262 and a plurality of groups of disc-type furrow openers 263, wherein the row spacing adjustment mechanism 26 can be provided with a plurality of groups corresponding to the number of sowing components 20, one end of the suspension beam 261 is fixed to the lower side of the seeder body 10, and the other end thereof (referring to the suspension beam 261) is connected to at least one of the plurality of disc-type furrow openers 263 or is fixedly connected to one side of the transverse slide bar 262, the disc-type furrow openers 263 are spaced apart along the transverse slide bar 262 and are slidably connected to the transverse slide bar 262, and the lower end of the sowing tube 24 is connected to the disc-type furrow opener 263 one-to-one. The above-mentioned disc-type furrow opener 263 includes a fixed rib plate and a pair of circular soil-breaking pieces symmetrically and arranged at an angle. The pair of circular soil-breaking pieces are fixed to the lower side of the fixed rib plate by a support arm arranged on both sides of the fixed rib plate. The upper side of the fixed rib plate is also provided with sliders and mounting holes at intervals. A sliding groove for slidingly cooperating with the transverse sliding rod 262 is provided on the upper edge of the slider. The disc-type furrow opener 263 can be slidably sleeved on the transverse sliding rod 262 through the sliding groove, and a fixing bolt is provided on one side of the sliding groove. The fixed state can be released or restored by loosening or tightening the fixing bolt, so as to adjust the distance between the disc-type furrow openers 263; the lower end of the sowing tube 24 passes through the above-mentioned mounting hole and extends to between the pair of circular soil-breaking pieces.

[0047] When the wheat seeding machine is used, the disc-type furrow opener 263 is slid along the transverse slide bar 262 to drive the seeding tube 24 to move, so as to adjust the transverse seeding spacing.

[0048] Furthermore, in order to prevent the seeds absorbed by the seed suction roller 22 from falling out of the sowing furrow due to unstable suction or clogging of the seed suction holes 221, causing seed leakage and waste, the above-mentioned sowing assembly 20 also includes a seed storage chamber 27, and a snap-in is provided on the upper side of the seed storage chamber 27 and is snapped onto the bottom of the seed lower hopper 21, and the above-mentioned seed suction roller 22 is surrounded by the interior of the seed storage chamber 27. The seed storage chamber 27 can collect the wheat seeds that fall from the seed suction holes 221 due to the above-mentioned factors, thereby avoiding waste of wheat seeds; a through hole 271 is also provided at the bottom of the seed storage chamber 27, and the sowing tube 24 extends downward through the through hole 271 and the sowing tube 24 is sealed and connected to the through hole 271, so as to ensure that the sowing tube 24 can sow normally while avoiding leakage of seeds from the gap between the sowing tube 24 and the through hole 271.

[0049] On the basis of the above embodiment, the internal space of the seed storage chamber 27 is funnel-shaped, and a discharge port 272 is provided at its bottom separated from the above-mentioned through hole 271, and the operator can collect the missed seeds collected in the seed storage chamber 27 through the discharge port 272; a blocking door 273 is hingedly connected to the discharge port 272, and the blocking door 273 can be rotated around the hinge between a first position and a second position to close or open the discharge port 272.

[0050] Furthermore, in order to facilitate the operator to open the above-mentioned material blocking door 273 to collect seeds, a guide groove 2731 is provided on one side of the internal space of the seed storage chamber 27 adjacent to the material blocking door 27. When the material blocking door 273 is rotated to the second position, the guide groove 2731 is used to guide the wheat seeds to flow out of the seed storage chamber 27, that is, the operator only needs to place the container under the material blocking door 273 and open the material blocking door 273 to the second position, so that the material blocking door 273 and the discharge port 272 form an inclined surface that is convenient for guiding the wheat seeds to flow out stably. The guide groove 2731 can ensure that the wheat seeds fall stably and prevent the wheat seeds from flowing out from both sides of the material blocking door 273, thereby increasing the convenience of the operator in collecting wheat seeds.

[0051] Combined with the multiple structures and features in the above embodiments, the above wheat seeding machine can reduce seed waste while improving seeding efficiency and seeding accuracy.

[0052] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation methods of the present application. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A wheat seeding machine, characterized in that: include, A seeder body, the seeder body comprising a traveling frame and a tilling mechanism, a fertilizing mechanism, a soil covering mechanism and a ground leveling mechanism which are sequentially arranged on the traveling frame; as well as The sowing assembly comprises a plurality of sowing assemblies arranged in an array between the fertilizing mechanism and the soil covering mechanism along the width extension direction of the walking frame. The sowing assembly comprises a seed discharging hopper, a seed suction drum, a driving mechanism and a sowing tube, a seed discharging hopper having a seed outlet at the bottom thereof, the seed suction drum being rotatably arranged at the seed outlet and a rolling surface thereof being relatively fitted with the seed outlet, the rolling surface of the seed suction drum being annularly arranged at intervals around the circumference and having seed suction holes distributed thereon in an annular manner, a negative pressure space being formed inside the seed suction drum relative to the outside, the seed suction holes being all connected with the negative pressure space, the driving mechanism being transmission-connected to the seed suction drum, and the driving mechanism being used for controlling the rotation speed of the seed suction drum; a seed discharging piece is provided at one end of the sowing tube, the seed discharging piece is located on the moving path of the seed suction hole and one side of the seed discharging piece is close to the seed suction drum, the seed discharging piece is used for guiding the wheat seeds at the seed suction hole into the sowing tube, and the other end of the sowing tube extends along the gravity direction.

2. The wheat seeder as described in claim 1, wherein the driving mechanism includes a frequency converter, a driving motor and a reducer, the frequency converter is electrically connected to the driving motor, the driving shaft of the driving motor is transmission-connected to the seed suction drum through the reducer, and the driving motor is used to drive the seed suction drum to rotate at different speeds based on different speed control signals emitted by the frequency converter.

3. The wheat seeding machine according to claim 1, characterized in that: It also includes an exhaust component, which includes an air pump, an air flow diverter and a plurality of exhaust pipes. The air inlet of the air pump is connected to the plurality of exhaust pipes through the air flow diverter. An air outlet is provided on one side of the seed suction drum. One side of the air outlet is connected to the negative pressure space, and the other side is sealed and rotatably connected to the exhaust pipe.

4. The wheat seeding machine according to claim 1, characterized in that: The seed-moving piece includes a fixing plate and bristles. The fixing plate is inserted into the inner side of one end of the sowing tube adjacent to the seed suction drum along the direction of gravity. The bristles are densely laid in a plate shape on one side of the fixing plate with one end close to the rolling surface of the seed suction drum, and the laying width of the bristles can at least cover the aperture of any of the seed suction holes.

5. The wheat seeding machine according to claim 4, characterized in that: The rolling surface of the seed suction roller is provided with a positioning groove in an annular shape along the circumferential direction, the seed suction holes are arranged along the extension direction of the positioning groove, one end of the bristle extends into the positioning groove, and the laying width of the bristle is not greater than the width of the positioning groove.

6. The wheat seeder according to any one of claims 1 to 5, characterized in that: The seed suction holes are distributed in a plurality of groups at intervals along the axial direction of the seed suction drum, the number of the sowing tubes is the same as the number of the groups of the seed suction holes, and any sowing tube corresponds to any group of the seed suction holes.

7. The wheat seeding machine according to claim 6, characterized in that: The sowing assembly also includes a row spacing adjustment mechanism, which is cooperatively connected to one end of the sowing tube away from the seed suction drum, and is used to adjust the distance between adjacent ends of the sowing tube away from the seed suction drum.

8. The wheat seeding machine according to claim 7, characterized in that: The row spacing adjustment mechanism includes a suspension beam, a transverse sliding bar and several groups of disc-type furrow openers. One end of the suspension beam is connected to the seeder body, and the other end is fixedly connected to at least one of the several groups of disc-type furrow openers or the transverse sliding bar. The disc-type furrow openers are distributed at intervals along the transverse sliding bar and are all slidably connected to the transverse sliding bar in the transverse direction. The end of the sowing tube away from the seed suction drum is connected to the disc-type furrow openers in a one-to-one correspondence.

9. The wheat seeding machine according to claim 1, characterized in that: The sowing assembly also includes a seed storage chamber, which is clamped on one side of the seed hopper, and the seed suction roller is located inside the seed storage chamber. A through hole is provided at the bottom of the seed storage chamber, and the sowing tube passes through the through hole and is sealed and connected to the through hole.

10. The wheat seeding machine according to claim 9, characterized in that: The inner space of the seed storage chamber is funnel-shaped, and a discharge port is provided at the bottom of the seed storage chamber spaced apart from the through hole. A material blocking door is hinged at the discharge port, and the material blocking door can rotate around a hinged portion between a first position and a second position.

Images