Precision seeder

Abstract

The invention relates to the technical field of seeding machines, and provides a precision seeding machine which comprises a vehicle body, the vehicle body is provided with a front wheel set, a rear wheel set and a front driving part, and the front driving part is located above the front wheel set; the seeding assembly is arranged on the vehicle body in a lifting manner, is positioned between the front wheel group and the rear wheel group, and is used for seeding; the front wheel set comprises two front wheels, and annular protrusions are arranged on the surfaces of the front wheels in the circumferential direction of the front wheels. By means of the technical scheme, the problems that a seeder in the prior art is large in size, poor in stability and inflexible are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of seed drills, and in particular to a precision seed drill. Background Art

[0002] With the continuous development of modern agriculture, the requirements for crop sowing operations are increasing day by day. Precise, efficient and adaptable sowing methods in diverse field environments have become key requirements for agricultural production. As an important agricultural machinery and equipment for sowing operations, the performance of the seeder directly affects the planting quality, yield and convenience of subsequent field management of crops.

[0003] Traditional seed drills have gradually exposed many deficiencies in practical applications. In terms of overall structural layout, many seed drills do not fully consider the reasonable position relationship between key components. For example, the seeding components are often not arranged scientifically with the wheel group, resulting in the vibration and bumps generated by the movement of the front and rear wheels being easily transmitted directly to the seeding components during the movement of the seed drill, which seriously interferes with the seeding operation, making it difficult for seeds to be sown into the soil at the predetermined precise position and depth, resulting in seeding position deviation, uneven depth and other problems, which in turn destroys the regularity of seeding, is not conducive to the uniform growth of crops and the smooth implementation of subsequent field management work such as irrigation, fertilization, weeding and harvesting. Summary of the invention

[0004] The invention provides a precision seeder, which solves the problems of large size, poor stability and inflexibility of the prior art seeders.

[0005] The technical solution of the present invention is as follows: A precision seeder, comprising: A vehicle body, comprising a front wheel set, a rear wheel set and a front driving portion, wherein the front driving portion is located above the front wheel set; A sowing assembly, which is lifted and arranged on the vehicle body, the sowing assembly is located between the front wheel group and the rear wheel group, and is used for sowing; The front wheel group includes two front wheels, and the front wheel surface has an annular protrusion along the circumference thereof.

[0006] As a further technical solution, There are three annular protrusions, the diameter of the annular protrusion located in the middle is larger than the diameter of the annular protrusions located on both sides, and the diameters of the annular protrusions located on both sides are the same; Annular grooves are formed between adjacent annular protrusions.

[0007] As a further technical solution, The front wheel group and the rear wheel group are movably arranged, and the front wheel group and the rear wheel group move closer to or farther from each other.

[0008] As a further technical solution, the sowing assembly includes: sowing rack; A connecting rod group, comprising at least two connecting rods arranged in parallel, wherein two ends of the connecting rods are respectively hinged to the seeding rack and the vehicle body, and a four-link structure is formed between the connecting rods, the seeding rack and the vehicle body; A furrowing wheel set, comprising two furrowing wheels arranged in back-to-back directions, the furrowing wheels being rotatably arranged on the sowing frame, and the furrowing wheel set being used for opening furrows on the ground; A soil covering wheel group, comprising two soil covering wheels arranged in opposite directions, the soil covering wheels being rotatably arranged on the sowing frame, and the soil covering wheel group being located on one side of the furrowing wheel group; A seed conveying assembly is arranged on the sowing frame, and the seed conveying assembly is used for conveying seeds between the two furrowing wheels.

[0009] As a further technical solution, the sowing assembly further includes: A seed pressing block is arranged on the sowing frame, the seed pressing block is located between the furrowing wheel group and the soil covering wheel group, the seed pressing block is used to press the seeds in the furrow, the seed pressing block is inclined and has a pressing surface.

[0010] As a further technical solution, the sowing assembly further includes: The telescopic driving member has two ends respectively hinged to the seeding frame and the vehicle body. After the telescopic driving member is extended or retracted, the seeding frame rises or falls.

[0011] As a further technical solution, the seed delivery assembly includes: A containing barrel is arranged on the sowing rack, the containing barrel has an upper opening, the containing barrel is used to contain seeds, and the bottom of the containing barrel has a seeding hole; A delivery pipe is arranged at the bottom of the containing barrel, one end of the delivery pipe is connected to the seed discharge hole, and the other end is a free end and is located between the two trenching wheels.

[0012] As a further technical solution, The seed pressing block is hingedly arranged on the sowing frame, and after the seed pressing block rotates, the pressing surface approaches or moves away from the ground.

[0013] As a further technical solution, The seed pressing block is provided with a strip hole, a counterweight block is slidably arranged in the strip hole, and after the counterweight block slides to different positions, the pressing surface exerts different pressures on the ground.

[0014] As a further technical solution, it also includes: A limiting rope has one end connected to the sowing rack and the other end connected to the seed pressing block.

[0015] The working principle and beneficial effects of the present invention are: In the present invention, the sowing assembly is arranged between the front wheel group and the rear wheel group, so that the overall structure of the seeder is more reasonable and compact. The front wheel group is responsible for guiding the travel direction of the seeder, the rear wheel group provides support and driving force for the entire machine body, and the sowing assembly is located between the two. During the movement of the seeder, the vibration, bumps, etc. caused by the movement of the front and rear wheels can be minimized to the greatest extent to reduce the interference of the sowing operation, and the sowing assembly is in a relatively stable position environment, which is conducive to maintaining the accuracy of sowing and ensuring that the seeds can be sown into the soil according to the predetermined position and depth.

[0016] This layout makes it convenient for the operator to control the forward and steering operations of the seeder through the front driving unit, while being able to observe the working status of the sowing component in real time. Moreover, as the seeder moves steadily, the sowing component can complete a series of actions such as furrowing, sowing, and covering the soil in sequence at a suitable rhythm, which has better coordination with the overall movement process of the seeder, ensuring that the sowing operation can be carried out continuously and efficiently, and avoiding problems such as disordered sowing rhythm or missed sowing areas due to unreasonable layout.

[0017] In addition, the sowing component is located between the front wheel group and the rear wheel group, and the overall layout is more compact and reasonable, which not only makes the overall size of the seeder relatively smaller and more flexible, and can adapt to more sowing environments, but also the overall center of gravity is close to the middle position of the seeder. When operating in the field, even if encountering some uneven ground or slight external force interference, the seeder can maintain a good balance, ensuring the accuracy and stability of the sowing operation, further helping to improve the sowing accuracy, and laying a solid foundation for high-quality sowing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some exemplary embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on the contents of the exemplary embodiments of the present invention and these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a partial enlarged structural schematic diagram of the seed briquetting part of the present invention; Figure 3 This is a schematic diagram of the top view of the seed conveying assembly of the present invention; Figure 4 It is a partial structural schematic diagram of the seed conveying component of the present invention.

[0020] In the figure: 1-vehicle body, 11-front wheel group, 111-front wheel, 112-annular protrusion, 113-annular groove, 12-rear wheel group, 13-front driving part, 14-operating platform, 2-seeding assembly, 21-seeding rack, 22-connecting rod, 23-ditching wheel, 24-covering wheel, 25-seed conveying assembly, 251-containing barrel, 252-seed hole, 253-conveying pipe, 254-conical block, 255-notch, 256-partitioning plate, 257-cylinder, 26-seed pressing block, 261-pressing surface, 262-strip hole, 263-counterweight block, 264-limiting rope, 27-telescopic drive member. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0022] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0023] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0025] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] like Figures 1 to 4 As shown, the present invention proposes a precision seeder, including a vehicle body 1, the vehicle body 1 has a front wheel group 11, a rear wheel group 12 and a front driving part 13, and the front driving part 13 is located above the front wheel group 11; a sowing component 2 is lifted and arranged on the vehicle body 1, the sowing component 2 is located between the front wheel group 11 and the rear wheel group 12, and the sowing component 2 is used for sowing.

[0028] In this embodiment, the sowing assembly 2 is arranged between the front wheel group 11 and the rear wheel group 12, so that the overall structure of the seeder is more reasonable and compact. The front wheel group 11 is responsible for guiding the travel direction of the seeder, the rear wheel group 12 provides support and driving force for the entire machine body, and the sowing assembly 2 is located between the two. During the movement of the seeder, the vibration and bumps caused by the movement of the front and rear wheels can be minimized to the greatest extent to reduce the interference of the sowing operation, and the sowing assembly 2 is in a relatively stable position environment, which is conducive to maintaining the accuracy of sowing and ensuring that the seeds can be sown into the soil according to the predetermined position and depth.

[0029] This layout makes it convenient for the operator to control the forward and steering operations of the seed drill through the front driving unit 13 while observing the working status of the seeding component 2 in real time. Moreover, as the seed drill moves smoothly, the seeding component 2 can complete a series of actions such as furrowing, sowing, and covering the soil in sequence at a suitable rhythm, which has better coordination with the overall moving process of the seed drill, ensuring that the seeding operation can be carried out continuously and efficiently, and avoiding problems such as disordered seeding rhythm or missed seeding areas due to unreasonable layout.

[0030] In addition, the sowing component 2 is located between the front wheel group 11 and the rear wheel group 12, and the overall layout is more compact and reasonable, which not only makes the overall volume of the seeder relatively smaller and more flexible, and can adapt to more sowing environments, but also the overall center of gravity is close to the middle position of the seeder. When operating in the field, even if encountering some uneven ground or slight external force interference, the seeder can maintain a good balance, ensuring the accuracy and stability of the sowing operation, further helping to improve the sowing accuracy, and laying a solid foundation for high-quality sowing operations.

[0031] Furthermore, the front wheel set 11 includes two front wheels 111 , and the surfaces of the front wheels 111 have annular protrusions 112 along the circumference thereof.

[0032] In this embodiment, the wheel surface of the front wheel 111 that contacts the ground is carefully designed with annular protrusions 112 distributed along the circumferential direction. When the wheel is running on the ground, it will crush out ruts in the shape of strip grooves. This unique phenomenon is not accidental, but actually plays an important role. These annular protrusions 112 are like "track guides" tailored for the front wheel 111. During the rolling process of the wheel, by forming a specific contact mode with the ground, it is easier for the front wheel 111 to maintain the established driving direction while driving, greatly reducing the possibility of the wheel running off the track, slipping, etc.

[0033] Thanks to the fact that the front wheels 111 can stably maintain the direction of travel, it is easier for the seeder to travel stably in a straight line during sowing operations. In this way, the regularity of sowing is greatly improved, and the seeds will be sown into the field soil in neat and uniform rows, forming a standardized and orderly sowing layout. This not only meets the high standards of modern agriculture for precision sowing, but also has a far-reaching positive impact on the subsequent growth management of crops and the final harvesting process. For example, it facilitates field irrigation, fertilization, weeding and other operations, and also facilitates harvesting machinery to harvest along a straight line, improves harvesting efficiency, and reduces crop losses. Furthermore, there are three annular protrusions 112 , the diameter of the annular protrusion 112 located in the middle is larger than the diameter of the annular protrusions 112 located on both sides, and the diameters of the annular protrusions 112 located on both sides are the same; annular grooves 113 are formed between adjacent annular protrusions 112 .

[0034] In this embodiment, there are three annular protrusions 112, and the diameter of the annular protrusion 112 in the middle is larger than the annular protrusions 112 of the same diameter on both sides, and annular grooves 113 are formed between adjacent annular protrusions 112. Such a structural design further optimizes the contact state between the front wheel 111 and the ground. When the annular protrusion 112 with a larger diameter in the middle encounters a small protrusion or pit on the ground, it can easily cross or fill it with its own larger size, and the annular protrusions 112 on both sides play a role of coordinated support and balance, ensuring that the front wheel 111 can still maintain stable rolling under various complex ground conditions, and will not suddenly deviate or shake in direction due to uneven force at a single point, and will continue to stably maintain the driving direction, making the overall driving of the planter more stable and smooth.

[0035] Based on the more stable driving state of the front wheels 111, the seeder can still move stably in a straight line during the sowing process, continuing and strengthening the accuracy and regularity of sowing. Seeds can be accurately sown into the soil according to the established row and column spacing as always, maintaining a good sowing layout, providing strong guarantees for the subsequent uniform growth of crops, full utilization of land resources, and efficient field management, further ensuring that the entire sowing operation can be completed with high quality from beginning to end, ensuring a good start for crop planting.

[0036] Furthermore, the front wheel set 11 and the rear wheel set 12 are arranged to move, and the front wheel set 11 and the rear wheel set 12 move closer to or farther away from each other.

[0037] In this embodiment, the front wheel set 11 and the rear wheel set 12 can move, and the wheelbase between the front wheel set 11 and the rear wheel set 12 changes after the movement. Therefore, on the one hand, for a relatively flat land surface in the field, the distance between the front wheel set 11 and the rear wheel set 12 can be reduced (i.e., the wheelbase is reduced). The shorter wheelbase makes the turning radius of the seeder smaller, the steering is more flexible and light, and the operator can more easily control the seeder to complete the turning action by controlling the steering wheel, avoiding the omission of the sowing area or damage to the sown area due to inflexible turning, further improving the practicality and efficiency of the seeder in complex field environments, ensuring that the sowing work can be carried out efficiently and completely, and improving the overall turning performance of the seeder. On the other hand, for a relatively uneven land surface in the field, the distance between the front wheel set 11 and the rear wheel set 12 can be increased (i.e., the wheelbase is increased), thereby improving the overall stability and reducing the problem of poor sowing effect caused by the shaking of the seeder due to uneven ground.

[0038] Furthermore, the sowing assembly 2 includes a sowing frame 21; the connecting rod group includes at least two connecting rods 22 arranged in parallel, and the two ends of the connecting rod 22 are respectively hinged to the sowing frame 21 and the vehicle body 1, and a four-bar structure is formed between the connecting rod 22, the sowing frame 21 and the vehicle body 1; the trenching wheel group includes two trenching wheels 23 arranged in back to back, the trenching wheels 23 are rotatably set on the sowing frame 21, and the trenching wheel group is used to open trenches on the ground; the covering wheel group includes two covering wheels 24 arranged in back to back, the covering wheels 24 are rotatably set on the sowing frame 21, and the covering wheel group is located on one side of the trenching wheel group; the seed conveying assembly 25 is arranged on the sowing frame 21, and the seed conveying assembly 25 is used to convey seeds between the two trenching wheels 23.

[0039] In this embodiment, the connecting rod group in the sowing assembly 2 (multiple connecting rods are arranged in parallel, so that the sowing assembly 2 forms a structure that can rise and fall and float with the ground) is formed through at least two connecting rods 22 arranged in parallel, and its two ends are respectively hinged to the sowing frame 21 and the vehicle body 1, forming a four-link structure. Relying on the stable driving direction of the front wheel 111 and the good travel stability of the entire sowing machine, this four-link structure provides reliable support and stability for the sowing frame 21. When the sowing machine is traveling in a straight line, the sowing frame 21 can maintain a stable posture and will not swing or deviate significantly due to the bumps, vibrations in the field or the slight shaking of the sowing machine itself, thereby ensuring the fixity of the relative positions between the components in the sowing assembly 2. The components such as the furrowing wheel group, the soil covering wheel group, and the seed conveying assembly 25 can complete the furrowing, sowing, soil covering and other operations in a predetermined order and rhythm, and ensure that the sowing operation is carried out in an orderly manner, and further improve the accuracy and regularity of sowing.

[0040] The two back-to-back ditching wheels 23 of the ditching wheel group are rotatably arranged on the sowing frame 21. When the seeder moves in a straight line with the front wheels 111 stabilizing the driving direction, the ditching wheels 23 can make full use of this stable traveling state, contact and rotate with the ground at a uniform speed and accurate angle, so as to accurately open straight grooves on the ground. The depth, width, row spacing and other parameters of these grooves can be kept highly consistent, providing precise position guidance for the subsequent accurate sowing of seeds, ensuring that the seeds can be sown in the appropriate position, in accordance with the pre-set sowing layout requirements. The covering wheel group is located on one side of the ditching wheel group. As the seeder continues to move forward, the covering wheel 24 can timely and evenly cover the seeds along the same straight line direction, ensuring that the thickness of the covering is appropriate and the position is accurate, which not only provides a good growth environment for the seeds, but also maintains the overall regularity of the sowing area. The seed conveying assembly 25 can accurately convey the seeds to the groove between the two furrowing wheels 23 with the help of the stable driving of the seeder and the stable state of the sowing frame 21, so that the seed landing point is perfectly matched with the driving direction of the seeder and the sowing layout direction, thereby jointly ensuring the sowing quality and realizing efficient and accurate sowing operations.

[0041] Furthermore, the sowing assembly 2 also includes a seed pressing block 26, which is arranged on the sowing frame 21, and the seed pressing block 26 is located between the furrowing wheel group and the soil covering wheel group. The seed pressing block 26 is used to press the seeds in the groove. The seed pressing block 26 is inclined and has a pressing surface 261.

[0042] In this embodiment, the seed pressing block 26 is arranged on the sowing frame 21 and is located between the furrowing wheel group and the soil covering wheel group. It is inclined and has a pressing surface 261. After the sowing machine can stably maintain a straight driving direction by means of the front wheel 111 and complete the operations such as furrowing, sowing, and soil covering, the seed pressing block 26 follows the stable moving direction of the sowing machine and uses the inclined pressing surface 261 to press the seeds in the groove. Since the overall structure layout of the sowing machine is reasonable and the driving is stable, the seed pressing block 26 can play a stable role, so that the seeds are firmly in the appropriate position in the soil, and the arrangement direction of the seeds is ensured to be consistent with the driving and sowing layout direction of the sowing machine. This not only makes the seeds take root more firmly, but also makes the fields after sowing present a neat and orderly layout, which is convenient for the subsequent growth management and harvesting of crops, further strengthens the regularity of sowing, improves the overall sowing quality, and is more conducive to making full use of land resources and ensuring that crops grow vigorously as planned.

[0043] Furthermore, the seeding rack 21 is provided with a distance sensor, and the distance sensor is used to detect the distance from the seeding rack 21 to the ground.

[0044] In this embodiment, the distance sensor equipped on the seeding frame 21 is used to measure the distance between the seeding frame 21 and the ground. Based on the reasonable and compact overall structure of the seeding machine, and the ability of the front wheels 111 to stably maintain the driving direction, the seeding machine is generally stable when working in the field, but there are inevitably some ups and downs on the field ground. The distance sensor plays a key role in this process. It can monitor the distance between the seeding frame 21 and the ground in real time, and adjust the distance from the seeding frame 21 to the ground according to the change in distance, so that the seeding depth remains constant.

[0045] Furthermore, the sowing assembly 2 also includes a telescopic driving member 27, both ends of which are hinged to the sowing rack 21 and the vehicle body 1 respectively. After the telescopic driving member 27 is extended or retracted, the sowing rack 21 rises or falls.

[0046] In this embodiment, in view of the different requirements for sowing depth for different crop seeds, the telescopic drive member 27 can accurately adjust the overall height of the sowing frame 21 with the help of the stable driving structure of the seeder and the stable driving direction guaranteed by the front wheel 111, thereby controlling the depth parameters of each relevant operation link. For example, wheat seeds generally require a shallow sowing depth, while soybean seeds require a relatively deeper burying depth. Through the telescopic adjustment of the telescopic drive member 27, it can be ensured that the trenching wheel 23 opens a trench of appropriate depth, the seed conveying assembly 25 conveys the seeds to the corresponding depth position, and the seed pressing block 26 can also press the seeds at an accurate depth, so that the seeds are sown and buried at the most suitable soil depth, meeting the needs of diversified crop planting and improving the versatility of the seeder and the accuracy of the sowing effect.

[0047] In addition, the sowing assembly 2 can be raised after sowing is completed through the telescopic driving member 27 to prevent friction and collision with the ground. The telescopic driving member 27 can be an electric cylinder, an oil cylinder, etc.

[0048] Furthermore, the seed conveying assembly 25 includes a containing barrel 251, which is arranged on the sowing rack 21, and has an upper opening. The containing barrel 251 is used to contain seeds, and the bottom of the containing barrel 251 has a seeding hole 252; a conveying pipe 253 is arranged at the bottom of the containing barrel 251, and one end of the conveying pipe 253 is connected to the seeding hole 252, and the other end is a free end and is located between the two ditching wheels 23.

[0049] In this embodiment, the container 251 in the seed conveying assembly 25 is arranged on the sowing frame 21, and has an upper opening for convenient seed filling, a seeding hole 252 is arranged at the bottom, and is connected through a conveying pipe 253, one end of the conveying pipe 253 is connected with the seeding hole 252, and the other free end is located between the two furrowing wheels 23. When the seeder relies on the front wheel 111 to travel in a straight line in a stable direction, thanks to the stable environment created by the overall structure of the seeder, the seeds contained in the container 251 are in a relatively stable state, and will not be scattered disorderly due to the bumps and shakes of the seeder. When the sowing operation begins, the seeds rely on their own gravity and some auxiliary conveying mechanisms such as slight vibrations, etc., to orderly enter the conveying pipe 253 through the seeding hole 252, and are accurately conveyed to the groove opened along the predetermined direction between the two furrowing wheels 23 along the stable driving direction of the seeder. The entire seed delivery process is highly matched with the seeder's travel rhythm and sowing layout direction, ensuring that seeds can be sown in the field in the planned order and position, achieving the precise transfer of seeds from storage to the sowing point, ensuring the accuracy of sowing, and laying the foundation for the uniform growth of crops.

[0050] Due to the reasonable overall structure of the seeder, the front wheel 111 can stably maintain straight driving, and the environment of the seed conveying assembly 25 is relatively stable, reducing the interference of external factors on the seed conveying process. This allows the seeds in the container 251 to enter the conveying pipe 253 through the seed hole 252 more smoothly, reducing the probability of seeds being spilled, blocked, and other problems during the conveying process, further ensuring that the seeds can be accurately conveyed to the predetermined sowing position, and improving the accuracy and reliability of seed conveying.

[0051] Furthermore, the seed conveying assembly 25 also includes a conical block 254, which is rotatably arranged in the containing barrel 251. The side walls of the conical block 254 are provided with a plurality of recesses 255, and a receiving space is formed between the recesses 255 and the inner wall of the containing barrel 251; after the conical block 254 rotates, the receiving space is connected to the seed discharge hole 252; a partition plate 256 is arranged on the conical surface of the conical block 254, and the partition plate 256 is arranged along the generatrix of the conical surface, and a plurality of partition plates 256 are evenly arranged along the circumference of the conical block 254; a partition plate 256 is arranged between each adjacent recess 255.

[0052] In this embodiment, in the seed conveying assembly 25, the conical block 254 is rotatably arranged in the container 251, and the side walls thereof are provided with a plurality of notches 255, and a receiving space is formed between the notches 255 and the inner wall of the container 251, and the receiving space is connected with the seeding hole 252 after the conical block 254 rotates. During the process of the seeder driving in a straight line along the stable direction guaranteed by the front wheel 111, this structural design realizes the precise delivery control of seeds with the help of the overall stable operating environment of the seeder. By reasonably setting the parameters such as the rotation speed of the conical block 254, the size and number of the notches 255, the number of seeds discharged each time can be accurately controlled to avoid seed waste, so that the seed distribution in the field is more uniform, which meets the requirements of precise sowing for the number and distribution uniformity of seeds, further improves the precision and overall quality of sowing, meets the expectations of modern agriculture for efficient and precise planting, and lays a good foundation for high yield and bumper harvest of crops.

[0053] The partition plates 256 are arranged on the conical surface of the conical block 254, and are evenly distributed along the generatrix of the conical surface, and one partition plate 256 is arranged between two adjacent notches 255. When the seeder is running stably for sowing operations, these partition plates 256 play an important role in guiding and separating. They can effectively prevent the seeds from squeezing and accumulating against each other during the rotation of the conical block 254 and blocking the notches 255 or the seeding holes 252, ensuring that the seeds can smoothly pass through the accommodating space and the seeding holes 252 into the delivery tube 253, maintaining the continuity and stability of seed delivery, and further ensuring that the seeds can be accurately delivered to the sowing position, cooperating with the stable structure and precise sowing process of the entire seeder, and improving the efficiency and quality of the sowing operation.

[0054] Furthermore, the seed conveying assembly 25 also includes a cylinder 257 , which is disposed on the partition plate 256 , and the cylinder 257 is coaxial with the conical block 254 .

[0055] In this embodiment, the cylinder 257 is arranged on the partition plate 256 and is coaxial with the conical block 254. When the seeder performs sowing operations by virtue of the stable structure and the stable driving direction of the front wheel 111, the cylinder 257 provides a more regular space and path guide for the flow of seeds near the conical block 254 by virtue of such favorable conditions. The seeds are first poured into the cylinder 257, and then dispersed and transported to the accommodation space along the two adjacent partition plates 256, which reduces the disorderly scattering and collision of seeds around the conical block 254, further reduces the probability of jamming, blockage and other failures in the seed transport link, and improves the accuracy and smoothness of the seed transport process from the filling barrel 251 to the transport pipe 253.

[0056] Furthermore, the seed pressing block 26 is hingedly arranged on the sowing frame 21, and after the seed pressing block 26 rotates, the pressing surface 261 rises or falls.

[0057] In this embodiment, the seed pressing block 26 is hingedly arranged on the sowing frame 21, and the pressing surface 261 rises or falls after the seeding machine rotates. When the seed drill is moving in a straight line in the stable driving direction of the front wheel 111, based on the stable working environment brought by the overall structure of the seed drill, the operator can flexibly rotate the seed pressing block 26 to adjust the angle of the pressing surface 261 according to different soil surface conditions such as the presence of soil blocks, uneven places, and the requirements of different crop seeds for the pressing angle, so that it can better fit the seeds and the soil surface, and achieve a more accurate and effective seed pressing operation. In this way, the contact state between the seeds and the soil can be optimized, the burial quality of the seeds can be improved, and the seeds can be compacted at a suitable angle and position, which is conducive to the subsequent germination and growth of the seeds, and the adaptability of the seed drill to complex sowing scenes can be enhanced, ensuring that good sowing quality and regularity can be maintained under various field conditions.

[0058] Furthermore, a strip hole 262 is provided on the seed pressing block 26, and a counterweight block 263 is slidably arranged in the strip hole 262. When the counterweight block 263 slides to different positions, the pressing surface 261 exerts different pressures on the ground.

[0059] In this embodiment, a strip hole 262 is provided on the seed pressing block 26, and a counterweight block 263 is slidably arranged in the strip hole 262. After the counterweight block 263 slides to different positions, the pressing surface 261 exerts different pressures on the ground. Based on the stable structure of the seeder and the stable sowing environment brought about by the stable driving of the front wheels 111, the operator can accurately adjust the pressure of the pressing surface 261 on the ground by changing the position of the counterweight block 263 in the strip hole 262 according to the different requirements of different types of seeds, such as seeds of different sizes, weights, and hardness, for the pressing force. It can meet the personalized needs of different crop seeds for the pressing force when sowing, improve the versatility and sowing effect of the seeder, and provide a strong guarantee for the healthy growth of crops.

[0060] At the same time, in the face of different soil compactions (such as loose sandy soil and compact clay soil), the adjustable design of the counterweight block 263 enables the operator to adjust the pressing force accordingly according to changes in soil conditions, and with the help of the good working environment created by the overall stable structure of the seeder, ensure that the seed pressing operation can better adapt to various soil conditions, maintain the consistency and stability of the sowing effect, enhance the seeder's ability to adapt to different soil environments, and ensure that the sowing quality is not affected by soil differences.

[0061] Furthermore, the pressing surface 261 is a smooth curved surface.

[0062] In this embodiment, during the movement of the seeder, even if there is slight undulation or vibration on the field ground, the smooth curved pressing surface 261 can always maintain good contact with the seeds and the soil, and will not cause uneven pressing or loss of contact due to factors such as bumps. Relying on the overall stability of the seeder, each seed pressing operation can be carried out stably and effectively to maintain sowing.

[0063] Furthermore, it also includes a limiting rope 264, one end of which is connected to the sowing rack 21, and the other end of which is connected to the seed pressing block 26.

[0064] In this embodiment, one end of the limit rope 264 is connected to the seeding frame 21, and the other end is connected to the seed pressing block 26, which plays an important role in the overall structure of the seeding machine. On the one hand, the limit rope 264 can connect the seed pressing block 26 to prevent the seed pressing block 26 from being damaged and falling; on the other hand, it can limit the pressing depth of the seed pressing block 26.

[0065] Furthermore, the length of the limiting rope 264 is adjustable, and when the limiting rope 264 is lengthened or shortened, the pressing surface 261 descends or ascends.

[0066] In this embodiment, the adjustable length of the limit rope 264 gives the seeder strong adaptability to working conditions. When facing different field soil conditions such as soft sandy soil, compact clay soil, specific requirements of different crop seeds for burial depth, and different terrain conditions, the operator can easily control the rise and fall of the pressing surface 261 by adjusting the length of the limit rope 264. When it is necessary to increase the burial depth of the seeds, the limit rope 264 can be appropriately lengthened to make the pressing surface 261 descend; conversely, if it is necessary to reduce the burial depth, the limit rope 264 can be shortened to make the pressing surface 261 rise. This flexible adjustment method is like equipping the seeder with a "sowing depth fine-tuner" that can be adjusted at any time according to actual conditions, which can accurately meet the diverse sowing needs, ensure that each crop seed can be buried at the most suitable depth, thereby improving the germination rate of seeds and the growth quality of crops, so that the seeder can achieve high-quality and high-precision sowing operations in various complex field environments.

[0067] By changing the length of the limit rope 264 to control the lifting and lowering of the pressing surface 261, the operator can have a more precise control over the seed pressing operation. In the process of the stable driving of the seeder relying on the structural advantages such as the stable direction of the front wheel group 11, by accurately adjusting the length of the limit rope 264, it can be ensured that the pressing surface 261 can accurately press the seeds according to the preset depth and strength every time, so that the buried state of the seeds in the soil is more in line with the sowing requirements. This not only helps to maintain the regularity of the sowing layout, ensure that the seeds are evenly distributed and neatly arranged, but also optimizes the soil environment around the seeds, creates good conditions for seed germination, and improves the sowing effect from multiple aspects, so that the sowing operation is more in line with the high standards and strict requirements of modern agriculture for precision sowing, and gives full play to the performance advantages of the seeder.

[0068] Furthermore, the front driving part 13 includes a driving seat and a steering wheel, and the vehicle body 1 also has an operating platform 14, which is located above the rear wheel group 12, and is used for carrying goods or people.

[0069] In this embodiment, the front driving part 13 includes a driver's seat and a steering wheel. Such a design provides a comfortable and convenient operating environment for the operator. When the seed drill is working in the field, the operator sits in the driver's seat and can easily control the forward, backward and steering movements of the seed drill by controlling the steering wheel. This ergonomic design makes it difficult for the operator to feel fatigued during the long-term seeding operation, and can maintain a good operating state, so as to more accurately control the seed drill to travel along the predetermined route, ensuring that the driving direction of the seed drill is highly consistent with the preset sowing layout direction. For example, when it is necessary to sow along a straight line or turn in the field, the operator can rely on the steering wheel to flexibly and accurately complete the corresponding actions, avoiding the occurrence of problems such as deviation of the seed drill's driving route and missing the sowing area due to inconvenient operation, which effectively guarantees the smooth development of the sowing operation and the maintenance of sowing accuracy.

[0070] The setting of the driver's seat and the steering wheel allows the operator to intuitively control the operation status of the seed drill and monitor and adjust the entire seeding process in real time. When the operator sits in the driver's seat, he can not only clearly observe the sowing area in front and the direction of travel of the seed drill, but also pay attention to the working conditions of the various components of the sowing assembly 2 through the peripheral vision, such as the furrowing effect of the furrowing wheel group, the seed delivery of the seed conveying assembly 25, and the pressing operation of the seed pressing block 26. Once any abnormal situation is found, the operator can immediately adjust the driving direction of the seed drill through the steering wheel or take corresponding operating measures to deal with it, without leaving the seat or performing complex operation conversions, which greatly improves the timeliness and operation efficiency of responding to emergencies, ensures that the sowing operation can be carried out efficiently and stably, and improves the practicality and ease of use of the seed drill in actual agricultural production.

[0071] The operating platform 14 provided on the vehicle body 1 is located above the rear wheel group 12 and has the function of carrying goods or people. This design greatly expands the use scenarios and practicality of the seed drill. In actual agricultural production activities, the operating platform 14 can be used to place some additional sowing tools, spare seeds, fertilizers and other materials, which are convenient for operators to use at any time during the sowing process, without the need to frequently travel between the fields and warehouses, saving time and physical strength, and improving the efficiency of sowing operations. At the same time, when multiple people are required to collaborate to complete the sowing task or perform some more complex field operations, the operating platform 14 can also carry other staff members, providing them with a relatively stable and safe standing or operating space, which is convenient for jointly carrying out tasks such as checking the sowing quality and adjusting the sowing parameters, thereby enhancing the adaptability of the seed drill in multi-person operation scenarios, so that it can better meet the agricultural production needs of different scales and complexities.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A precision seeder, characterized in that: include: A vehicle body (1) having a front wheel set (11), a rear wheel set (12) and a front driving portion (13), wherein the front driving portion (13) is located above the front wheel set (11); A sowing assembly (2) is arranged on the vehicle body (1) in a lifting manner, the sowing assembly (2) is located between the front wheel group (11) and the rear wheel group (12), and the sowing assembly (2) is used for sowing; The front wheel group (11) comprises two front wheels (111), and the surfaces of the front wheels (111) have annular protrusions (112) along their circumferences.

2. A precision seeder according to claim 1, characterized in that: There are three annular protrusions (112), the diameter of the annular protrusion (112) located in the middle is larger than the diameter of the annular protrusions (112) located on both sides, and the diameters of the annular protrusions (112) located on both sides are the same; An annular groove (113) is formed between adjacent annular protrusions (112).

3. A precision seeder according to claim 1, characterized in that: The front wheel group (11) and the rear wheel group (12) are arranged to move, and the front wheel group (11) and the rear wheel group (12) move closer to or farther from each other.

4. A precision seeder according to any one of claims 1 to 3, characterized in that: The sowing assembly (2) comprises: Seeding rack (21); A connecting rod group, comprising at least two connecting rods (22) arranged in parallel, wherein two ends of the connecting rod (22) are respectively hinged to the seeding rack (21) and the vehicle body (1), and a four-link structure is formed between the connecting rod (22), the seeding rack (21) and the vehicle body (1); A furrowing wheel assembly, comprising two furrowing wheels (23) disposed in back-to-back relation, the furrowing wheels (23) being rotatably disposed on the sowing frame (21), the furrowing wheel assembly being used to open furrows on the ground; A soil covering wheel group, comprising two soil covering wheels (24) arranged in back-to-back relation, the soil covering wheels (24) being rotatably arranged on the sowing frame (21), the soil covering wheel group being located on one side of the furrowing wheel group; A seed conveying assembly (25) is arranged on the sowing frame (21), and the seed conveying assembly (25) is used to convey seeds between the two furrowing wheels (23).

5. A precision seeder according to claim 4, characterized in that: The sowing assembly (2) further comprises: A seed pressing block (26) is arranged on the sowing frame (21); the seed pressing block (26) is located between the furrowing wheel group and the soil covering wheel group; the seed pressing block (26) is used to press the seeds located in the furrow; the seed pressing block (26) is arranged obliquely and has a pressing surface (261).

6. The precision seeder according to claim 4, characterized in that: The sowing assembly (2) further comprises: The telescopic driving member (27) has two ends respectively hinged to the sowing frame (21) and the vehicle body (1); after the telescopic driving member (27) is extended or retracted, the sowing frame (21) rises or falls.

7. The precision seeder according to claim 4, characterized in that: The seed conveying assembly (25) comprises: A containing barrel (251) is arranged on the sowing rack (21); the containing barrel (251) has an upper opening, the containing barrel (251) is used to contain seeds, and the bottom of the containing barrel (251) has a seeding hole (252); A delivery pipe (253) is arranged at the bottom of the containing barrel (251); one end of the delivery pipe (253) is connected to the seeding hole (252), and the other end is a free end and is located between the two trenching wheels (23).

8. The precision seeder according to claim 5, characterized in that: The seed pressing block (26) is hingedly arranged on the sowing frame (21); after the seed pressing block (26) rotates, the pressing surface (261) moves closer to or farther from the ground.

9. The precision seeder according to claim 8, characterized in that: The seed pressing block (26) is provided with a strip-shaped hole (262), and a counterweight block (263) is slidably arranged in the strip-shaped hole (262). When the counterweight block (263) slides to different positions, the pressing surface (261) exerts different pressures on the ground.

10. The precision seeder according to claim 9, characterized in that: Also includes: A limiting rope (264) has one end connected to the sowing rack (21) and the other end connected to the seed pressing block (26).

Images