Pneumatic precision seeder applied to mountains and hills

Abstract

The utility model provides a pneumatic precision seeder applied to mountains and hills, which comprises a frame assembly and a driving mechanism, the frame assembly comprises a front frame, four rear supports, a traction connecting frame and four planar four-link profiling frames; wherein the traction connecting frame is installed in the middle of one side of the front rack, and the four rear supports are all arranged on one side of the front rack; the gravity center of the combined seed and fertilizer drill is arranged at the lower middle part of the whole machine, so that the friction force between the land wheel body and the ground is increased by using the weight of the machine body, and the driving mechanism can be used for driving the linkage assembly to drive the fertilization assembly and the seeding assembly to synchronously act during fertilization and seeding; the pneumatic seeder is used for quantitative fertilization and pneumatic high-precision seeding, the dependence on direct driving of a tractor is reduced, and the front rack and the rear rack are connected by adopting the planar four-link profiling rack, so that the pneumatic seeder can effectively meet the requirements of complex working environments such as mountains, hills and the like.

Description

Technical Field

[0001] The utility model relates to a fertilizer seeder, in particular to a pneumatic precision seeder used in mountainous and hilly areas, belonging to the technical field of agricultural machinery fertilizer seeder equipment. Background Art

[0002] A pneumatic seeder is a precision seeding device that uses the pressure difference created by airflow to plant seeds. It mainly consists of a seed disc (wheel, drum) with seed suction holes, a fan, and an airflow system. The seeds enter the seed suction holes due to the pressure difference, are carried out of the airflow action area by the seed disc, and then fall into the seed transport tube due to their own weight and are then sown into the seed bed. Based on the working principle, pneumatic seeders can be divided into air suction type, air pressure type, and air blowing type. The advantages of this type of seeder include no damage to seeds, strong versatility, and suitability for high-speed operations. A fertilizer seeder is an agricultural machine used for simultaneous fertilization and sowing operations. It is mainly used for conservation tillage and can fertilize and sow without damaging the soil structure.

[0003] The research status and existing problems of fertilization technology. Fertilization technology can make fertilizers accumulate on seeds in a certain proportion. Reasonable fertilization technology can efficiently absorb the nutrients required by crops. It can also reduce agricultural pollution caused by improper use of chemical fertilizers to the agricultural ecological environment, and better adapt to the requirements of sustainable development.

[0004] The Chinese patent title is a combined arable land seeder (patent number ZL201510875171.3), which discloses a combined arable land sowing technology. The technology is achieved by arranging a seed storage cylinder above the arable land mechanism, providing multiple discharge ports at the bottom of the seed storage cylinder, and providing an arable land unit below each discharge port. During the movement of the seeder, the seeds in the storage cylinder are sown into the plowed grooves by the sowing mechanism. Although the purpose of synchronous arable land sowing can be achieved, in actual operation, since the sowing mechanism is provided above the arable land unit, the seeds are extremely susceptible to squeezing and collision during the downward application process, causing damage to the seeds and affecting the germination rate of crops after sowing. In addition, the seeds are sown by directly scattering, resulting in a large number of seeds exposed on the soil surface. After the seeds take root and germinate in the later stage, the seeds on the soil surface have too shallow roots, which ultimately has a more serious adverse effect on the growth and yield of crop seeds after sowing. In addition to the above problems, traditional fertilizer seeders also have the following problems:

[0005] 1. Fertilizer seeders are mostly large agricultural machinery and equipment with a large overall size. The center of gravity of the entire machine is mostly designed at the tail, and it is impossible to design the center of gravity to the lower middle position of the entire machine. In addition, the overall mechanical structure is mostly directly driven by the power of the tractor.

[0006] 2. Most existing machines use immovable rigid frames, which cannot be applied to complex working environments such as mountains and hills. In addition, the fertilization and sowing accuracy is low, and there are problems such as easy clogging and uneven spreading. Therefore, a pneumatic precision seeder for use in mountains and hills is proposed. Utility Model Content

[0007] In view of this, the present invention provides a pneumatic precision seeder for use in mountainous and hilly areas to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0008] The technical solution of the embodiment of the utility model is achieved as follows: a pneumatic precision seeder for hilly areas, comprising a frame assembly and a drive mechanism, wherein the frame assembly comprises a front frame, four rear supports, a traction connecting frame and four planar four-link profiling frames;

[0009] Wherein, the traction connecting frame is installed in the middle of one side of the front frame, the four rear brackets are all provided on one side of the front frame, the four planar four-link profiling frames are installed between the front frame and the four rear brackets, a driving mechanism is installed on the side of the front frame close to the rear bracket, four linkage components are installed between the driving mechanism, the front frame and the four rear brackets, four fertilizing components are symmetrically installed on the front frame, sowing components are installed on the four rear brackets, and a fan component is installed in the middle of one side of the front frame close to the front frame;

[0010] Wherein, the driving mechanism includes two extension frames, two ground wheel bodies, a first sprocket, a transmission chain and a second sprocket;

[0011] The two extension frames are both fixedly connected to one side of the front frame, one end of the first sprocket is rotatably connected to one side of the extension frame, the ground wheel body is mounted on one end of the first sprocket, the second sprocket is rotatably connected to one side of the front frame, and the inner side wall of the transmission chain is meshed with the outer side walls of the first sprocket and the second sprocket;

[0012] Wherein, the linkage assembly utilizes the power of the driving mechanism to drive the fertilizing assembly and the sowing assembly to move synchronously;

[0013] Wherein, the fertilizing component utilizes the power of the linkage component to carry out quantitative fertilization;

[0014] The sowing component utilizes the power of the linkage component in conjunction with the fan component to perform pneumatic high-precision sowing.

[0015] Further preferably, the four linkage assemblies each include a transmission connecting rod, a first transmission shaft, a first chain transmission member, a second chain transmission member, a first bevel gear, a second bevel gear, a telescopic transmission connecting rod, a third bevel gear, a fourth bevel gear and a fifth bevel gear;

[0016] In which, one end of the transmission connecting rod is connected to one end of the second sprocket or the second chain transmission member, the first transmission shaft is rotatably connected to one side of the fertilizing assembly, the first chain transmission member is installed between the first transmission shaft and the first chain transmission member, and extends to one side of the fertilizing assembly, the first bevel gear is rotatably connected to one side of the front frame, the first bevel gear is installed between the first chain transmission member and the first bevel gear, the second bevel gear is rotatably connected to one side of the front frame, and the outer side of the second bevel gear is meshed with the outer side of the first bevel gear.

[0017] Further preferably, one end of the telescopic transmission link is mounted on one end of the second bevel gear through a universal joint, one end of the third bevel gear is connected to the other end of the telescopic transmission link through a universal joint, and the outer side wall of the fourth bevel gear is meshed with the outer side walls of the third bevel gear and the fifth bevel gear.

[0018] Further preferably, the four fertilizing components each include a fertilizer hopper, a mixing chamber, a fertilizer discharge pipe, a stirring mechanism, and a distribution mechanism;

[0019] The mixing chamber is fixedly connected to the surface of the front frame, the fertilizer hopper is fixedly connected to the top of the mixing chamber, the fertilizer discharge pipe is fixedly connected to one side of the mixing chamber, the mixing mechanism is installed in the middle of the inner wall of the mixing chamber, and the distribution mechanism is installed at the top of the inner wall of the fertilizer discharge pipe.

[0020] Further preferably, the stirring mechanism includes a stirring sleeve and a plurality of material-moving rods;

[0021] Wherein, the stirring sleeve is sleeved on the outside of the first chain transmission component, and the plurality of material-moving rods are fixedly connected to the outer side wall of the stirring sleeve.

[0022] Further preferably, the distribution mechanism includes a distribution roller, a first connecting rod, a blocking baffle, a second connecting rod, a fixing rod and a fan-shaped fixing piece;

[0023] In which, the distribution roller is sleeved on the outside of the first transmission shaft, one end of the first connecting rod is hinged to one side of the blocking baffle, and the blocking baffle is slidably connected to one side of the mixing chamber, the second connecting rod is hinged to one end of the first connecting rod, the second connecting rod is fixedly connected to the outside of the fixed rod, one end of the second connecting rod is hinged to the other end of the first connecting rod, the fan-shaped fixing plate is installed on one side of the front frame, and one end of the fixed rod is fixedly connected to one side of the fan-shaped fixing plate.

[0024] Further preferably, the four sowing components each include a seed bucket, a bin cover, a seed mixing chamber, a seed discharge tube, a seed disturbing roller, a material conveying and dispensing mechanism, and a seed transporting mechanism;

[0025] Wherein, the seed bucket is installed on one side of the rear bracket, the bin cover is hinged to one side of the upper surface of the seed bucket, the mixing chamber is fixedly connected to the bottom of one side of the seed bucket, the seed disturbance roller is rotatably connected to one side of the inner wall of the mixing chamber, one end of the seed disturbance roller is fixedly connected to one end of the fifth bevel gear, one side of the outer wall of the fifth bevel gear is rotatably connected to the inner wall of the mixing chamber, the conveying and material discharging mechanism is installed on one side of the mixing chamber, and the seed transporting mechanism is installed on the outside of the conveying and material discharging mechanism.

[0026] Further preferably, the feeding and discharging mechanism includes a feeding end cover, a sealing end cover and a scraper blocking plate; the seed feeding mechanism includes an air extraction pipe, a feeding plate and a plurality of adsorption holes.

[0027] Wherein, the conveying end cover is installed on one side of the seed mixing chamber, the sealing end cover is installed on one side of the conveying end cover, the scraper blocking plate is fixedly connected to the side of the conveying end cover close to the sealing end cover, one side of the outer wall of the fourth bevel gear is rotatably connected to the inner side wall of the conveying end cover, and one end of the seed discharging tube is connected to the bottom of one side of the conveying end cover;

[0028] Among them, the exhaust pipe is connected to the outer wall of the sealing end cover, the conveying plate is installed between the conveying end cover and the sealing end cover, several of the adsorption holes are opened on the inner side of the conveying plate, and one end of the fourth bevel gear is inserted into the inner wall of the conveying plate.

[0029] Further preferably, the fan assembly includes an induced draft cover, an impeller, a fan connecting shaft, a belt driven pulley, a belt driving pulley, a driving main shaft, an induced draft housing and a plurality of induced draft ducts;

[0030] In which, the belt driven pulley is installed in the middle of one side of the front frame, the impeller is installed on the inner side of the induced draft hood, one end of the fan connecting shaft is installed in the middle of the inner side of the impeller, and the other end of the fan connecting shaft is rotatably connected to one side of the front frame, the belt driven pulley is installed in the middle of the outer side wall of the fan connecting shaft, the driving main shaft is rotatably connected to the middle of one side of the front frame, the belt driving pulley is installed at one end of the driving main shaft, the belt driven pulley and the belt driving pulley are connected by a belt, the induced draft shell is connected to the middle of one side of the induced draft hood, several of the induced draft ducts are connected to the outside of the induced draft shell, and the induced draft ducts and the exhaust pipes are connected by pipes.

[0031] Further preferably, four rear suspensions are symmetrically fixedly connected to one side of the rear bracket, and a pressing wheel is installed on one side of the four rear suspensions. Eight secondary soil covering frames are symmetrically fixedly connected to the bottom of the rear bracket, and two secondary trenching wheels are provided between each of the eight secondary soil covering frames. The secondary trenching wheels are rotatably connected to the rear bracket, and the bottom of the seed pipe is provided between the two secondary trenching wheels. The bottom of the outer wall of the fertilizer pipe is symmetrically rotatably connected to two primary trenching wheels, and two oblique brackets are symmetrically installed in the middle of the outer wall of the fertilizer pipe, and one end of the two oblique brackets is rotatably connected to a primary soil covering wheel.

[0032] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0033] 1. The utility model sets the center of gravity of the fertilizer seeder in the lower middle part of the whole machine so as to increase the friction between the ground wheel body and the ground by using the weight of the machine body. When fertilizing and sowing, the driving mechanism can be used to drive the linkage assembly to drive the fertilizing assembly and the sowing assembly to move synchronously, so as to perform quantitative fertilization and pneumatic high-precision sowing, thereby reducing the dependence on direct drive of the tractor. The front frame and the rear bracket are connected by a flat four-link contoured frame, which can effectively adapt to the needs of complex working environments such as mountains and hills.

[0034] Second, the overall structure of the utility model is relatively compact, and has the advantages of being easy to use, durable, and easy to operate, which can save a lot of manpower, resources, and production costs, and improve production efficiency.

[0035] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0037] Figure 1 It is a structural diagram of the utility model;

[0038] Figure 2 This is a schematic cross-sectional view of the utility model;

[0039] Figure 3 This is a schematic cross-sectional view of the fertilizer hopper of the present utility model;

[0040] Figure 4 This is a schematic cross-sectional view of the seed bucket of the present invention;

[0041] Figure 5 This is a schematic diagram of the partial structure of the front frame and rear bracket of the utility model from a top view;

[0042] Figure 6 For this utility model Figure 5 A schematic diagram of the enlarged structure of area A;

[0043] Figure 7 This is a side structural diagram of the front frame and rear bracket of the utility model;

[0044] Figure 8 This is an axonometric view of the seed bucket of the present invention;

[0045] Figure 9 This is an axonometric view of the transport tray of the present invention;

[0046] Figure 10 This is a side structural diagram of the present utility model;

[0047] Figure 11 This is a schematic diagram of the bottom-up structure of the present invention;

[0048] Figure 12 This is an axonometric view of the first chain transmission member of the present invention.

[0049] Figure 1: Frame assembly; 2: Driving mechanism; 3: Linkage assembly; 4: Fertilizing assembly; 5: Sowing assembly; 6: Fan assembly; 101: Front frame; 102: Rear bracket; 103: Traction connecting frame; 104: Planar four-link contoured frame; 201: Extension frame; 202: Ground wheel body; 203: First sprocket; 204: Transmission chain; 205: Second sprocket; 301: Transmission connecting rod; 302: First transmission shaft ; 303, first chain transmission member; 304, second chain transmission member; 305, first bevel gear; 306, second bevel gear; 307, telescopic transmission connecting rod; 308, third bevel gear; 309, fourth bevel gear; 310, fifth bevel gear; 401, fertilizer hopper; 402, mixing chamber; 403, fertilizer discharge pipe; 410, mixing mechanism; 420, distribution mechanism; 411, mixing sleeve; 412, material feeding Rod; 421, distribution roller; 422, first connecting rod; 423, blocking baffle; 424, second connecting rod; 425, fixing rod; 426, fan-shaped fixing plate; 501, seed bucket; 502, bin cover; 503, seed mixing chamber; 504, seed discharge tube; 510, seed disturbing roller; 520, conveying and discharging mechanism; 530, seed conveying mechanism; 521, conveying end cover; 522, sealing end cover; 523, scraper blocking plate; 53 1. Exhaust pipe; 532. Conveying disc; 533. Adsorption hole; 601. Draft hood; 602. Impeller; 603. Fan connecting shaft; 604. Belt driven pulley; 605. Belt driving pulley; 606. Driving main shaft; 607. Draft casing; 608. Draft duct; 71. Rear suspension; 72. Suppression wheel; 73. Secondary covering frame; 74. Secondary trenching wheel; 76. Primary trenching wheel; 77. Inclined bracket; 78. Primary covering wheel. DETAILED DESCRIPTION

[0050] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0051] It should be noted that the terms "first," "second," "symmetrical," and "array" are used solely for descriptive and positional purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Therefore, limitations on features such as "first" and "symmetrical" may explicitly or implicitly include one or more of these features. Similarly, when features are not limited in quantity using words such as "two" or "three," it should be noted that these features also explicitly or implicitly include one or more of these features.

[0052] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0053] like Figures 1-12 As shown, the embodiment of the present invention provides a pneumatic precision seeder for use in mountainous and hilly areas, comprising a frame assembly 1 and a drive mechanism 2. The frame assembly 1 comprises a front frame 101, four rear supports 102, a traction connecting frame 103, and four planar four-link profiling frames 104.

[0054] Among them, the traction connecting frame 103 is installed in the middle of one side of the front frame 101, the four rear brackets 102 are all provided on one side of the front frame 101, the four planar four-link profiling frames 104 are installed between the front frame 101 and the four rear brackets 102, a driving mechanism 2 is installed on the side of the front frame 101 close to the rear bracket 102, four linkage components 3 are installed between the driving mechanism 2, the front frame 101 and the four rear brackets 102, four fertilizing components 4 are symmetrically installed on the front frame 101, a sowing component 5 is installed on each of the four rear brackets 102, and a fan component 6 is installed in the middle of one side of the front frame 101 close to the front frame 101;

[0055] The driving mechanism 2 includes two extension frames 201, two ground wheel bodies 202, a first sprocket 203, a transmission chain 204 and a second sprocket 205;

[0056] The two extension frames 201 are fixedly connected to one side of the front frame 101, one end of the first sprocket 203 is rotatably connected to one side of the extension frame 201, the ground wheel body 202 is mounted on one end of the first sprocket 203, the second sprocket 205 is rotatably connected to one side of the front frame 101, and the inner side wall of the transmission chain 204 is meshed with the outer side walls of the first sprocket 203 and the second sprocket 205;

[0057] The linkage assembly 3 uses the power of the driving mechanism 2 to drive the fertilizing assembly 4 and the sowing assembly 5 to move synchronously;

[0058] Among them, the fertilizing component 4 uses the power of the linkage component 3 to carry out quantitative fertilization;

[0059] The sowing component 5 utilizes the power of the linkage component 3 and cooperates with the fan component 6 to perform pneumatic high-precision sowing.

[0060] In one embodiment, the four linkage assemblies 3 each include a transmission connecting rod 301, a first transmission shaft 302, a first chain transmission member 303, a second chain transmission member 304, a first bevel gear 305, a second bevel gear 306, a telescopic transmission connecting rod 307, a third bevel gear 308, a fourth bevel gear 309, and a fifth bevel gear 310;

[0061] Among them, one end of the transmission connecting rod 301 is connected to one end of the second sprocket 205 or the second chain transmission member 304, the first transmission shaft 302 is rotatably connected to one side of the fertilizing assembly 4, the first chain transmission member 303 is installed between the first transmission shaft 302 and the first chain transmission member 303, and extends to one side of the fertilizing assembly 4, the first bevel gear 305 is rotatably connected to one side of the front frame 101, and the first bevel gear 305 is installed between the first chain transmission member 303 and the first bevel gear 305. The second bevel gear 306 is rotatably connected to one side of the front frame 101, the outer side of the second bevel gear 306 is meshed with the outer side of the first bevel gear 305, one end of the telescopic transmission link 307 is mounted on one end of the second bevel gear 306 through a universal joint, one end of the third bevel gear 308 is connected to the other end of the telescopic transmission link 307 through a universal joint, and the outer side wall of the fourth bevel gear 309 is meshed with the outer side walls of the third bevel gear 308 and the fifth bevel gear 310.

[0062] The first transmission shaft 302 and the second transmission chain 304 are driven to move by the first chain transmission member 303. The moving second chain transmission member 304 drives the first bevel gear 305 to rotate. The rotating first bevel gear 305 drives the telescopic transmission link 307 to rotate by the second bevel gear 306. The rotating telescopic transmission link 307 drives the fourth bevel gear 309 to rotate by the third bevel gear 308. The rotating fourth bevel gear 309 drives the fifth bevel gear 310 to rotate.

[0063] In one embodiment, the four fertilizing assemblies 4 each include a fertilizer hopper 401 , a mixing chamber 402 , a fertilizer discharge pipe 403 , a mixing mechanism 410 , and a distribution mechanism 420 ;

[0064] The mixing chamber 402 is fixedly connected to the surface of the front frame 101, the fertilizer hopper 401 is fixedly connected to the top of the mixing chamber 402, the fertilizer discharge pipe 403 is fixedly connected to one side of the mixing chamber 402, the mixing mechanism 410 is installed in the middle of the inner wall of the mixing chamber 402, and the distribution mechanism 420 is installed at the top of the inner wall of the fertilizer discharge pipe 403;

[0065] The stirring mechanism 410 includes a stirring sleeve 411 and a plurality of material moving rods 412;

[0066] The stirring sleeve 411 is sleeved on the outside of the first chain transmission member 303, and the plurality of material-moving rods 412 are fixedly connected to the outer wall of the stirring sleeve 411;

[0067] The distribution mechanism 420 includes a distribution roller 421, a first connecting rod 422, a blocking baffle 423, a second connecting rod 424, a fixing rod 425 and a fan-shaped fixing piece 426;

[0068] Among them, the distribution roller 421 is sleeved on the outside of the first transmission shaft 302, one end of the first connecting rod 422 is hinged to one side of the blocking baffle 423, the blocking baffle 423 is slidably connected to one side of the mixing chamber 402, the second connecting rod 424 is hinged to one end of the first connecting rod 422, the second connecting rod 424 is fixedly connected to the outside of the fixed rod 425, one end of the second connecting rod 424 is hinged to the other end of the first connecting rod 422, the fan-shaped fixing plate 426 is installed on one side of the front frame 101, and one end of the fixed rod 425 is fixedly connected to one side of the fan-shaped fixing plate 426.

[0069] The rotating stirring sleeve 411 drives the material moving rod 412 to rotate, so as to break up the fertilizer falling into the stirring chamber 402 to prevent the fertilizer from clumping and causing blockage. Then, the first connecting rod 422 is moved to drive the blocking baffle 423 to move, so as to open one side of the stirring chamber 402, so that the fertilizer broken up inside can flow to the fertilizer discharge pipe 403. Then, the rotating first transmission shaft 302 drives the distribution roller 421 to rotate. The rotating distribution roller 421 blocks the outflowing fertilizer and uses the groove on its outer side to quantify the fertilizer.

[0070] In one embodiment, the four sowing assemblies 5 each include a seed bucket 501, a bin cover 502, a seed mixing chamber 503, a seed discharge tube 504, a seed disturbing roller 510, a material conveying mechanism 520 and a seed transport mechanism 530;

[0071] Among them, the seed bucket 501 is installed on one side of the rear bracket 102, the bin cover 502 is hinged to one side of the upper surface of the seed bucket 501, the seed mixing chamber 503 is fixedly connected to the bottom of one side of the seed bucket 501, the seed disturbing roller 510 is rotatably connected to one side of the inner wall of the seed mixing chamber 503, one end of the seed disturbing roller 510 is fixedly connected to one end of the fifth bevel gear 310, one side of the outer wall of the fifth bevel gear 310 is rotatably connected to the inner wall of the seed mixing chamber 503, the conveying and digging mechanism 520 is installed on one side of the seed mixing chamber 503, and the seed conveying mechanism 530 is installed on the outside of the conveying and digging mechanism 520;

[0072] The feeding mechanism 520 includes a feeding end cover 521, a sealing end cover 522 and a scraper blocking plate 523; the seed feeding mechanism 530 includes an air extraction pipe 531, a feeding plate 532 and a plurality of adsorption holes 533.

[0073] Among them, the conveying end cover 521 is installed on one side of the seed mixing chamber 503, the sealing end cover 522 is installed on one side of the conveying end cover 521, the scraper blocking plate 523 is fixedly connected to the side of the conveying end cover 521 close to the sealing end cover 522, one side of the outer wall of the fourth bevel gear 309 is rotatably connected to the inner side wall of the conveying end cover 521, and one end of the seed discharging tube 504 is connected to the bottom of one side of the conveying end cover 521;

[0074] Among them, the exhaust pipe 531 is connected to the outer wall of the sealing end cover 522, the conveying plate 532 is installed between the conveying end cover 521 and the sealing end cover 522, a number of adsorption holes 533 are opened on the inner side of the conveying plate 532, and one end of the fourth bevel gear 309 is inserted into the inner wall of the conveying plate 532.

[0075] The seed disturbing roller 510 is driven to rotate by the fifth bevel gear 310, and the rotating seed disturbing roller 510 stirs the seeds that fall into the seed mixing chamber 503 and pushes the seeds into the conveying end cover 521. Then, the rotating conveying disc 532 uses the adsorption holes 533 under the action of negative pressure to adsorb the seeds entering the conveying end cover 521, so that the rotating conveying disc 532 can be used to move the seeds in a quantitative manner. Then, the scraper blocking plate 523 is set to block the seeds on the conveying disc 532, so that the seeds are separated from the adsorption holes 533 and fall into the seed discharge tube 504 under the action of gravity.

[0076] In one embodiment, the fan assembly 6 includes an induced draft cover 601, an impeller 602, a fan connecting shaft 603, a belt driven pulley 604, a belt driving pulley 605, a driving main shaft 606, an induced draft housing 607 and a plurality of induced draft ducts 608;

[0077] Among them, the belt driven pulley 604 is installed in the middle of one side of the front frame 101, the impeller 602 is installed on the inner side of the induced draft cover 601, one end of the fan connecting shaft 603 is installed in the middle of the inner side of the impeller 602, and the other end of the fan connecting shaft 603 is rotatably connected to one side of the front frame 101, the belt driven pulley 604 is installed in the middle of the outer side wall of the fan connecting shaft 603, the driving main shaft 606 is rotatably connected to the middle of one side of the front frame 101, the belt driving pulley 605 is installed on one end of the driving main shaft 606, and the belt driven pulley 604 and the belt driving pulley 605 are connected by a belt, the induced draft shell 607 is connected to the middle of one side of the induced draft cover 601, and several induced draft pipes 608 are all connected to the outside of the induced draft shell 607, and the induced draft pipes 608 and the exhaust pipe 531 are connected by pipes.

[0078] The rotating driving main shaft 606 drives the belt driven pulley 604 to rotate via the belt driving pulley 605, and the rotating belt driven pulley 604 drives the impeller 602 to rotate via the fan connecting shaft 603. The rotating impeller 602 uses the induced draft shell 607, the induced draft pipe 608, the pipeline and the exhaust pipe 531 to quickly extract the air in the sealing end cover 522.

[0079] In one embodiment, four rear suspensions 71 are symmetrically fixedly connected to one side of the rear bracket 102, and a pressing wheel 72 is installed on one side of the four rear suspensions 71. Eight secondary soil covering frames 73 are symmetrically fixedly connected to the bottom of the rear bracket 102. Two secondary trenching wheels 74 are provided between each of the eight secondary soil covering frames 73. The secondary trenching wheels 74 are rotatably connected to the rear bracket 102. The bottom of the seed pipe 504 is provided between the two secondary trenching wheels 74. The bottom of the outer wall of the fertilizer pipe 403 is symmetrically rotatably connected to two primary trenching wheels 76. Two inclined brackets 77 are symmetrically installed in the middle of the outer wall of the fertilizer pipe 403, and one end of the two inclined brackets 77 is rotatably connected to a primary soil covering wheel 78.

[0080] When the front frame 101 follows the movement of the tractor as a whole, the fertilizer discharge pipe 403 is driven to move by the front frame 101, and the moving fertilizer discharge pipe 403 drives the primary furrowing wheel 76 and the inclined bracket 77 to move. The moving primary furrowing wheel 76 performs a furrowing operation on the land, so that the fertilizer discharged from the fertilizer discharge pipe 403 can fall smoothly into the furrow, and then drives the primary covering wheel 78 to move through the moving inclined bracket 77. The moving primary covering wheel 78 covers the furrow after fertilization, and drives the secondary furrowing wheel 74, the secondary covering frame 73 and the rear suspension 71 to move through the rear bracket 102. The moving secondary furrowing wheel 74 performs a secondary furrowing operation on the land, so that the seeds discharged from the seed discharge pipe 504 can fall smoothly into the furrow, and then covers the furrow after sowing through the moving secondary covering frame 73. The moving rear suspension 71 drives the pressing wheel 72 to move, and the moving pressing wheel 72 presses the furrow after covering.

[0081] When the utility model is in operation, the seeder is mounted on the tail end of the tractor by utilizing the traction connecting frame 103 and one end of the driving main shaft 606 is connected to the driving shaft of the tractor to complete the installation operation of the seeder.

[0082] When sowing and fertilizing are required, fertilizer and seeds are stored respectively by using the fertilizer hopper 401 and the seed hopper 501, and then the driving shaft of the tractor drives the driving main shaft 606 to rotate, and the rotating driving main shaft 606 drives the belt driven pulley 604 to rotate via the belt driving pulley 605, and the rotating belt driven pulley 604 drives the impeller 602 to rotate via the fan connecting shaft 603, and the rotating impeller 602 uses the induced draft shell 607, the induced draft pipe 608, the pipeline and the exhaust pipe 531 to quickly extract the air in the sealing end cover 522, so that negative pressure is formed inside it.

[0083] When the tractor pulls the seeder to move, the ground wheel body 202 rolls on the ground and drives the first sprocket 203 to rotate. The rotating first sprocket 203 drives the second sprocket 205 to rotate via the transmission chain 204. The rotating second sprocket 205 drives the first chain transmission member 303 to rotate via the transmission connecting rod 301. The rotating first chain transmission member 303 drives the stirring sleeve 411 and the first transmission shaft 302 to rotate at the same time. The rotating stirring sleeve 411 drives the material diverter rod 412 to rotate to adjust the material falling to the stirring sleeve. The fertilizer in the mixing chamber 402 is broken up to prevent the fertilizer from clumping and causing blockage. Then, the first connecting rod 422 is moved to drive the blocking baffle 423 to move, so as to open one side of the mixing chamber 402, so that the broken up fertilizer inside can flow to the fertilizer discharge pipe 403. Then, the distribution roller 421 is driven to rotate by the rotating first transmission shaft 302. The rotating distribution roller 421 blocks the outflowing fertilizer and uses the groove on its outer side to quantify the fertilizer so as to cooperate with the fertilizer discharge pipe 403 for quantitative fertilization.

[0084] When the first chain transmission member 303 rotates, the first bevel gear 305 is driven to rotate by the second chain transmission member 304 through the first chain transmission member 303. The rotating first bevel gear 305 drives the telescopic transmission link 307 to rotate by the second bevel gear 306. The rotating telescopic transmission link 307 drives the fourth bevel gear 309 to rotate by the third bevel gear 308. The rotating fourth bevel gear 309 drives the fifth bevel gear 310 and the transport plate 532 to rotate. The rotating fifth bevel gear 310 drives the seed disturbing roller 510 to rotate. The rotating seed disturbing roller 510 The seeds that fall into the seed mixing chamber 503 are stirred and pushed into the conveying end cover 521. Then, the seeds entering the conveying end cover 521 are adsorbed by the adsorption holes 533 under the action of negative pressure through the rotating conveying disc 532, so that the seeds can be quantitatively moved by the rotating conveying disc 532. Then, the seeds on the conveying disc 532 are blocked by the provided scraper blocking plate 523, so that the seeds are separated from the adsorption holes 533 and fall into the seed discharging tube 504 under the action of gravity, and are discharged by the seed discharging tube 504 to achieve a pneumatic high-precision sowing effect.

[0085] When the front frame 101 moves as a whole following the tractor, the fertilizer discharge pipe 403 is driven to move by the front frame 101, and the moving fertilizer discharge pipe 403 drives the primary trenching wheel 76 and the inclined bracket 77 to move. The moving primary trenching wheel 76 performs a trenching operation on the land, so that the fertilizer discharged from the fertilizer discharge pipe 403 can fall into the trench smoothly, and then drives the primary covering wheel 78 to move through the moving inclined bracket 77, and the moving primary covering wheel 78 performs a soil covering operation on the trench after fertilization.

[0086] When the rear bracket 102 moves as a whole following the front frame 101, the rear bracket 102 drives the secondary furrowing wheel 74, the secondary soil covering frame 73 and the rear suspension 71 to move, and the moving secondary furrowing wheel 74 performs secondary furrowing operations on the land, so that the seeds discharged by the seed tube 504 can fall into the furrow smoothly, and then the moving secondary soil covering frame 73 covers the furrow after sowing, and then the moving rear suspension 71 drives the pressing wheel 72 to move, and the moving pressing wheel 72 performs a pressing operation on the furrow after covering the soil.

[0087] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in this utility model, and such modifications or substitutions are intended to fall within the scope of protection of the present utility model. Therefore, the scope of protection of the present utility model shall be based on the scope of protection of the claims.

Claims

1. A pneumatic precision seeder for use in hilly areas, comprising a frame assembly (1) and a drive mechanism (2), characterized in that: The frame assembly (1) comprises a front frame (101), four rear brackets (102), a traction connecting frame (103) and four planar four-link profiling frames (104); wherein a traction connecting frame (103) is installed at the middle of one side of the front frame (101), four rear supports (102) are all provided at one side of the front frame (101), four planar four-link profiling frames (104) are installed between the front frame (101) and the four rear supports (102), a driving mechanism (2) is installed on one side of the front frame (101) close to the rear supports (102), four linkage assemblies (3) are installed between the driving mechanism (2), the front frame (101) and the four rear supports (102), four fertilizing assemblies (4) are symmetrically installed on the front frame (101), a sowing assembly (5) is installed on each of the four rear supports (102), and a fan assembly (6) is installed at the middle of one side of the front frame (101) close to the front frame (101); The driving mechanism (2) comprises two extension frames (201), two ground wheel bodies (202), a first sprocket (203), a transmission chain (204) and a second sprocket (205); The two extension frames (201) are both fixedly connected to one side of the front frame (101); one end of the first sprocket (203) is rotatably connected to one side of the extension frame (201); the ground wheel body (202) is mounted on one end of the first sprocket (203); the second sprocket (205) is rotatably connected to one side of the front frame (101); and the inner side wall of the transmission chain (204) is meshed with the outer side walls of the first sprocket (203) and the second sprocket (205); The linkage assembly (3) utilizes the power of the driving mechanism (2) to drive the fertilizing assembly (4) and the sowing assembly (5) to move synchronously; Wherein, the fertilizing component (4) utilizes the power of the linkage component (3) to carry out quantitative fertilization; The sowing component (5) utilizes the power of the linkage component (3) in conjunction with the fan component (6) to perform pneumatic high-precision sowing.

2. The pneumatic precision seeder for hilly and mountainous areas according to claim 1, characterized in that: The four linkage assemblies (3) each include a transmission connecting rod (301), a first transmission shaft (302), a first chain transmission member (303), a second chain transmission member (304), a first bevel gear (305), a second bevel gear (306), a telescopic transmission connecting rod (307), a third bevel gear (308), a fourth bevel gear (309) and a fifth bevel gear (310); wherein one end of the transmission connecting rod (301) is connected to one end of the second sprocket (205) or the second chain transmission member (304); the first transmission shaft (302) is rotatably connected to one side of the fertilizing assembly (4); the first chain transmission member (303) is installed between the first transmission shaft (302) and the first chain transmission member (303) and extends to one side of the fertilizing assembly (4); the first bevel gear (305) is rotatably connected to one side of the front frame (101); the first bevel gear (305) is installed between the first chain transmission member (303) and the first bevel gear (305); the second bevel gear (306) is rotatably connected to one side of the front frame (101); and the outer side of the second bevel gear (306) is meshed with the outer side of the first bevel gear (305).

3. The pneumatic precision seeder for hilly and mountainous areas according to claim 2, characterized in that: One end of the telescopic transmission link (307) is mounted on one end of the second bevel gear (306) via a universal joint, one end of the third bevel gear (308) is connected to the other end of the telescopic transmission link (307) via a universal joint, and the outer side wall of the fourth bevel gear (309) is meshed with the outer side walls of the third bevel gear (308) and the fifth bevel gear (310).

4. The pneumatic precision seeder for hilly and mountainous areas according to claim 2, characterized in that: The four fertilizing components (4) each include a fertilizer hopper (401), a mixing chamber (402), a fertilizer discharge pipe (403), a mixing mechanism (410) and a distribution mechanism (420); The mixing chamber (402) is fixedly connected to the surface of the front frame (101), the fertilizer hopper (401) is fixedly connected to the top of the mixing chamber (402), the fertilizer discharge pipe (403) is fixedly connected to one side of the mixing chamber (402), the mixing mechanism (410) is installed in the middle of the inner wall of the mixing chamber (402), and the distribution mechanism (420) is installed at the top of the inner wall of the fertilizer discharge pipe (403).

5. The pneumatic precision seeder for hilly and mountainous areas according to claim 4, characterized in that: The stirring mechanism (410) includes a stirring sleeve (411) and a plurality of material moving rods (412); The stirring sleeve (411) is sleeved on the outside of the first chain transmission component (303), and the plurality of material-moving rods (412) are fixedly connected to the outer wall of the stirring sleeve (411).

6. The pneumatic precision seeder for hilly and mountainous areas according to claim 4, characterized in that: The distribution mechanism (420) comprises a distribution roller (421), a first connecting rod (422), a blocking baffle (423), a second connecting rod (424), a fixing rod (425) and a fan-shaped fixing piece (426); Wherein, the distribution roller (421) is sleeved on the outer side of the first transmission shaft (302), one end of the first connecting rod (422) is hinged to one side of the blocking baffle (423), and the blocking baffle (423) is slidably connected to one side of the mixing chamber (402), the second connecting rod (424) is hinged to one end of the first connecting rod (422), the second connecting rod (424) is fixedly connected to the outer side of the fixing rod (425), one end of the second connecting rod (424) is hinged to the other end of the first connecting rod (422), the fan-shaped fixing plate (426) is installed on one side of the front frame (101), and one end of the fixing rod (425) is fixedly connected to one side of the fan-shaped fixing plate (426).

7. The pneumatic precision seeder for hilly and mountainous areas according to claim 4, characterized in that: The four sowing assemblies (5) each include a seed bucket (501), a bin cover (502), a seed mixing chamber (503), a seed discharge tube (504), a seed disturbing roller (510), a material conveying and dispensing mechanism (520), and a seed conveying mechanism (530); Wherein, the seed bucket (501) is installed on one side of the rear bracket (102), the bin cover (502) is hinged to one side of the upper surface of the seed bucket (501), the seed mixing chamber (503) is fixedly connected to the bottom of one side of the seed bucket (501), the seed disturbing roller (510) is rotatably connected to one side of the inner wall of the seed mixing chamber (503), one end of the seed disturbing roller (510) is fixedly connected to one end of the fifth bevel gear (310), one side of the outer wall of the fifth bevel gear (310) is rotatably connected to the inner wall of the seed mixing chamber (503), the conveying and dispensing mechanism (520) is installed on one side of the seed mixing chamber (503), and the seed conveying mechanism (530) is installed on the outside of the conveying and dispensing mechanism (520).

8. The pneumatic precision seeder for hilly and mountainous areas according to claim 7, characterized in that: The conveying and discharging mechanism (520) includes a conveying end cover (521), a sealing end cover (522) and a scraping blocking plate (523); the seed conveying mechanism (530) includes an air extraction pipe (531), a conveying plate (532) and a plurality of adsorption holes (533). The conveying end cover (521) is installed on one side of the seed mixing chamber (503), the sealing end cover (522) is installed on one side of the conveying end cover (521), the scraper blocking plate (523) is fixedly connected to the side of the conveying end cover (521) close to the sealing end cover (522), one side of the outer wall of the fourth bevel gear (309) is rotatably connected to the inner wall of the conveying end cover (521), and one end of the seed discharging tube (504) is connected to the bottom of one side of the conveying end cover (521); The exhaust pipe (531) is connected to the outer wall of the sealing end cover (522), the transport plate (532) is installed between the conveying end cover (521) and the sealing end cover (522), a plurality of the adsorption holes (533) are opened on the inner side of the transport plate (532), and one end of the fourth bevel gear (309) is inserted into the inner wall of the transport plate (532).

9. The pneumatic precision seeder for hilly and mountainous areas according to claim 8, characterized in that: The fan assembly (6) includes an air induced draft cover (601), an impeller (602), a fan connecting shaft (603), a belt driven pulley (604), a belt driving pulley (605), a driving main shaft (606), an air induced draft housing (607) and a plurality of air induced draft pipes (608); The belt driven pulley (604) is installed in the middle of one side of the front frame (101), the impeller (602) is installed on the inner side of the induced draft hood (601), one end of the fan connecting shaft (603) is installed in the middle of the inner side of the impeller (602), the other end of the fan connecting shaft (603) is rotatably connected to one side of the front frame (101), the belt driven pulley (604) is installed in the middle of the outer side wall of the fan connecting shaft (603), and the driving main shaft (606) The front frame (101) is rotatably connected to the middle of one side, the belt driving pulley (605) is installed on one end of the driving main shaft (606), the belt driven pulley (604) and the belt driving pulley (605) are connected by a belt, the induced draft shell (607) is connected to the middle of one side of the induced draft cover (601), and a plurality of induced draft pipes (608) are all connected to the outside of the induced draft shell (607), and the induced draft pipes (608) and the exhaust pipe (531) are connected by a pipeline.

10. The pneumatic precision seeder for hilly and mountainous areas according to claim 7, characterized in that: One side of the rear bracket (102) is symmetrically fixedly connected to four rear suspensions (71), and one side of each of the four rear suspensions (71) is equipped with a pressing wheel (72). The bottom of the rear bracket (102) is symmetrically fixedly connected to eight secondary soil covering frames (73), and two secondary ditching wheels (74) are provided between each of the eight secondary soil covering frames (73). The secondary ditching wheels (74) are rotatably connected to the rear bracket (102). The bottom of the seed pipe (504) is provided between the two secondary ditching wheels (74). The bottom of the outer wall of the fertilizer pipe (403) is symmetrically rotatably connected to two primary ditching wheels (76). Two oblique brackets (77) are symmetrically installed in the middle of the outer wall of the fertilizer pipe (403), and one end of each of the two oblique brackets (77) is rotatably connected to a primary soil covering wheel (78).

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