An adjustable socket wheel seeder with missed seeding detection function

Abstract

The invention discloses an adjustable socket wheel seeder with a missed seeding detection function, comprising a driving motor and a frame connected to a traction device, a seed storage device is arranged above the frame, a driving shaft, a seed meter and a lever driving device are arranged on the frame below the seed storage device, a transmission shaft is horizontally rotated and fixed in the frame, a speed sensor is arranged on the transmission shaft, one end of the transmission shaft is transmission-connected to a rotating shaft of a driving motor; a plurality of seed meters are arranged at intervals on the transmission shaft, and a missed seeding detection device is arranged on the seed meter; the invention has a unique structure and is easy to operate, and not only effectively solves the problem that the existing seeder has a complex structure and cannot conveniently and quickly adjust the size of the seeding tray seeding slot according to the seed type, but also solves the problem that the existing seeder cannot accurately detect the sowing effect during sowing.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural reseeding equipment, and in particular relates to an adjustable socket wheel seeder with a missed seeding detection function. Background Art

[0002] Precision seeding is one of the important ways to increase production and income in modern agriculture. Precision seeding can make seeding uniform, which is beneficial to crop production. Existing precision seeding generally uses wheel seeders for seeding operations. The seeding device of the wheel seeder is provided with a seeding disc, and the seeding disc is provided with a seeding slot. When in use, the rotating seeding disc will discharge the seeds that fall into the seeding slot outward in sequence to achieve precision seeding. However, the size of the seeding slot on the seeding disc in the seeding device of the existing precision seeder is fixed. Therefore, in order to meet the sowing requirements of different crops, the commonly adopted method is to equip a seeder with multiple seeding devices or to replace different seeding discs according to the size of the seeds during sowing. Equipping a seeder with multiple seeding devices will make the seeder structure complicated and the manufacturing cost high. In addition, other unused seeding devices are easily damaged during sowing operations. And replacing different seeding discs according to the size of the seeds requires the seeding device to be disassembled and replaced as a whole. The operation steps are complicated and the required time is long, and professional personnel are required to disassemble and replace.

[0003] In addition, the working process of the seeding device, the core component of the existing seeding machine, is in a closed state throughout the whole process. Once the phenomenon of missed seeding occurs, it cannot be discovered in time, which will lead to a reduction in crop yields, reduce the income of the workers, and affect their quality of life. At present, the methods used for missed seeding detection of seeding machines are machine vision technology, high-speed photography, virtual instrumentation, etc. Although machine vision technology has been applied to detect the seeding performance of the seeding device, the limitations of image processing are relatively large and cannot achieve precise detection; the high-speed photography method has a long processing time, high cost, and high requirements for the working environment; the virtual instrument detection method is only a preliminary exploration of this technology in the missed seeding detection system of the seeding machine, and many problems have not been solved, making it difficult to detect the sowing effect of the seeding machine. Summary of the invention

[0004] In view of the defects and problems existing in the existing seeders, the present invention provides an adjustable socket wheel seeder with a missed seeding detection function. The seeder has a unique structure and is easy to operate. It not only effectively solves the problem that the existing seeders have a complex structure and cannot conveniently and quickly adjust the size of the seed tray seeding slot according to the seed type, but also solves the problem that the existing seeders cannot accurately detect the sowing effect during sowing.

[0005] The solution adopted by the present invention to solve the technical problem is: an adjustable socket wheel seeder with a missed seeding detection function, comprising a driving motor and a frame connected to a traction device, a seed storage device is arranged above the frame, a driving shaft, a seed meter and a lever driving device are arranged on the frame below the seed storage device, a transmission shaft is horizontally rotated and fixed in the frame, a speed sensor is arranged on the transmission shaft, one end of the transmission shaft is connected to the driving motor shaft in a driving manner; a plurality of seed meters are arranged at intervals on the transmission shaft, a missed seeding detection device is arranged on the seed meter, and the missed seeding detection device comprises a controller and a sensor The speed sensor is connected to the controller, the sensor is installed on the seeding tube of the seeding device to detect the interval time of seeds falling in the seeding tube, and is connected to the controller; the seeding device includes a seeding shell, a limiting component, a sowing disc and a seeding tube, the seeding shell includes a main shell and a sub-shell that are rotatably sleeved on the transmission shaft from left to right, the main shell is fixedly connected to the sub-shell, and the main shell is fixedly connected to the frame; the shell top wall and the shell bottom in the main shell are respectively provided with a feed port and a discharge port that are connected to the outside, and a seeding tube is matched and installed on the discharge port; the limiting component includes a limiting block, a limiting The block is matched and sleeved on the transmission shaft in the auxiliary housing, and can slide and rotate along the transmission shaft. The left end of the limit block extends outward from the auxiliary housing and is transmission-connected to the lever driving device, which drives the limit block to slide left and right along the transmission shaft; the seeding plate is installed on the transmission shaft above the discharge port, and the seeding plate includes a relative driving mechanism and a fixed seed plate and a movable seed plate with the same outer diameter. The fixed seed plate is fixedly sleeved on the transmission shaft away from the side of the auxiliary housing, and the movable seed plate is coaxially slidably sleeved on the transmission shaft on the left side of the fixed seed plate, and the sliding seal at the left end of the movable seed plate extends into the main housing through the inner wall of the main housing. The seed disc is a plant that is fixed on a circumferential surface of the seed disc and the movable seed disc, and the seed disc is provided with a plurality of grooves that are evenly spaced inward along the circumference and penetrate the disc body in opposite directions. The seed disc and the movable seed disc are connected together by opposite driving mechanisms, and the two corresponding grooves of the seed disc and the movable seed disc are matched and combined to form a seed drop groove. The seed disc drives the movable seed disc to slide along the transmission shaft into the sub-shell and touch the limit block through the opposite driving mechanism. The front and rear sides of the seed disc are symmetrically and laterally fixed with arcuate walls, and the upper and lower ends of the arcuate walls are fixed with inclined material guide plates, and the material guide plate at the lower end of the arcuate wall is arranged toward the discharge port.

[0006] The right side wall of the seed plate is adjacent to the inner wall of the main shell body and the two are independent of each other.

[0007] The opposite driving mechanism includes a limit driving rod and a top spring or a disc spring. An installation groove is provided inwardly on one end surface of the movable seed disk adjacent to the fixed seed disk. A plurality of sliding holes that penetrate the movable seed disk are provided in the installation groove at intervals along the circumference. The limit driving rod is slidably sleeved in the sliding hole. The right end of the limit driving rod extends outwardly from the sliding hole and is vertically fixed to the fixed seed disk. A top spring or a disc spring is sleeved on the limit driving rod between the movable seed disk and the fixed seed disk, and both ends of the top spring or the disc spring are respectively supported together with the adjacent seed disk.

[0008] The lever driving device includes a transmission connection mechanism and an adjusting motor, the transmission connection mechanism includes a transverse adjustment plate arranged at intervals on the rear side of the seeder, fixed shafts are symmetrically rotated and fixed on the frames on the left and right sides of the adjustment plate, and a horizontal fixed platform is radially provided on the top of the fixed shaft, and the left and right ends of the adjustment plate are fixed together with the tail ends of adjacent horizontal fixed platforms; the fixed shaft on one side of the adjusting rod is transmission connected to the adjusting motor; a pry bar is rotatably fixed on the adjustment plate on the left side of each seeding device, and the other end of the pry bar is arranged toward the limit block and is hingedly connected to the limit block; a strip hole is longitudinally opened on the upper edge of the pry bar on the rear side of the limit block, and a vertical limit rod is slidably sleeved in the strip hole, and the upper and lower ends of the limit rod are fixed to the outer side wall of the auxiliary shell on the rear side of the limit block in parallel and at intervals through the fixed block.

[0009] A clearance groove communicating with the adjacent groove is arranged above each groove on the seed fixing disk, and the groove bottom of the clearance groove is inclined toward the bottom of the groove.

[0010] The inner side of the cross bar of the front side frame of the seed metering device is vertically welded with columns, and the main shell of the seed metering device is fixed with adjacent columns by bolts.

[0011] A furrow opener is fixed at the bottom end of the column on the front side of the seed discharging pipe, and a soil cover is arranged on the rear side of the seed discharging pipe.

[0012] The controller is provided with a power supply, a comparison control module and a speaker module. The comparison control module and the speaker module are both connected to the power supply, and the comparison control module is control-connected to the speaker module. The time sensor and the rotation speed sensor are both connected to the comparison control module.

[0013] Beneficial effects of the invention: The adjustable socket wheel seeder with missed seeding detection function provided by the invention has three advantages over the existing seeders:

[0014] 1. An adjustable socket wheel seeder with a missed seeding detection function provided by the present invention has a unique structure, including a driving motor and a frame connected to a traction device, a transmission shaft is fixed in the frame along a horizontal rotation, and one end of the moving shaft is transmission-connected to a rotating shaft of the driving motor; a plurality of seeding devices are arranged at intervals on the transmission shaft, a limiting component is arranged in a seeding shell on the left side of a seeding disk in the seeding device, and the limiting component is connected to a lever driving device, and the lever driving device can be used to drive the limiting component to slide axially along the transmission shaft, thereby adjusting and controlling the size of the seeding slot on the seeding disk. Compared with the existing seeding machines, the seeding machine provided by the present invention has a simple structure, and when in use, the size of the seeding slot of the seeding disk in the seeding device can be conveniently controlled by the lever driving device, the operation is convenient, and the seeding device does not need to be disassembled, thereby saving the disassembly time and disassembly cost of the seeding device and improving the seeding efficiency.

[0015] 2. The present invention provides an adjustable socket wheel seeder with a missed seeding detection function. Each seed meter is provided with a missed seeding detection device. The missed seeding detection device has a unique structure and a wide range of applications. It is not affected by the limitations of the sowing environment and is easy to detect. The standard time range T standard of the interval between the two seeds falling is calculated in real time and compared with the actual time interval T actual of the two seeds falling to obtain an accurate result. When missed seeding or repeated seeding occurs, the sowing personnel can make corresponding processing according to the prompt sound technology, which is easy to use.

[0016] 3. The present invention provides an adjustable socket wheel seeder with a missed seeding detection function, wherein a discharge groove connected to the adjacent groove is provided above each groove on the seeding disk, and the bottom of the discharge groove is inclined toward the groove. When the seeding disk rotates, excess seeds falling into the seeding groove will be squeezed out of the seeding groove from the yield groove. Compared with the existing seeder, this can prevent the seeds from being stuck between the curved wall and the seeding groove when the seeding disk is transferring and transporting seeds, thereby causing seed damage and improving the survival rate of the seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the installation position of the drive motor of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the seed metering device of the present invention.

[0020] Figure 4 It is a schematic diagram of the positions of the seeding tube and furrow opener of the seeding device of the present invention.

[0021] Figure 5 It is a schematic diagram of the installation position of the time sensor of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the seeding disc of the present invention.

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of the seeding disc of the present invention.

[0024] Figure 8 It is a schematic structural diagram of the lever driving device of the present invention.

[0025] Fig. 9 It is a schematic diagram of the internal structure of the seed metering device of the present invention.

[0026] Fig.10 It is a schematic diagram of the installation position of the dustproof shell of the present invention.

[0027] Fig.11 It is a schematic diagram of the structure of the invention from a top view.

[0028] Fig.12 It is a schematic diagram of the installation position of the thrust bearing of the present invention.

[0029] Fig.13 yes Fig.12 A schematic diagram of the enlarged structure in the middle.

[0030] Fig.14 It is a schematic diagram of the working principle of the broadcast leakage detection device of the present invention.

[0031] Fig.15 It is a schematic diagram of the structure of the anti-fall shell of the present invention.

[0032] Fig.16 It is a schematic diagram of the installation position of the anti-drop shell of the present invention.

[0033] Numbers in the figure: frame 1, driving motor 11, transmission shaft 12, column 13, seeding device 2, seeding shell 21, 211 is the main shell, seed inlet 2111, seeding port 2112, 212 is the auxiliary shell, limit block 22, fixed shaft sleeve 221, hinge seat 222, seeding disc 23, fixed seeding disc 231, movable seeding disc 232, mounting groove 2321, slide hole 2322, seeding tube 24, limit driving rod 25, top spring 26, arc wall 27, guide plate 271, seeding groove 28, groove 281, yielding groove 29, lever driving device 3, adjusting plate 31, fixed shaft 32, follower gear 321, horizontal fixed platform 33, adjusting motor 34, driving gear 341, pry bar 35, end fork 351, strip hole 352, limit rod 36, fixed pin 37, driving short arm 38, dust cover 29, furrow opener 4, cover 5, fixed plate 51, cover plate 52, time sensor 6, annular fixed platform 71, thrust bearing 72, inner bearing sleeve 721, outer bearing sleeve 722, top support ring platform 73, convex ring platform 74, anti-drop shell 8, inner anti-drop shell 81, outer anti-drop shell 82. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0035] Example 1

[0036] Example 1

[0037] This embodiment provides an adjustable eyelet wheel seeder with a missed seeding detection function. Figure 1-12 As shown, it includes a driving motor 11 and a frame 1 connected to a traction device. When the traction device moves, it drives the frame 1 to move. A seed storage device is arranged above the frame 1. The seed storage device is a common rectangular seed storage box. A driving shaft 12, a seed meter 2 and a lever driving device 6 are arranged on the frame below the seed storage device. The driving shaft 12 is a square shaft. The transmission shaft 12 is horizontally rotated and fixed in the frame 1, and a speed sensor is arranged on the transmission shaft 12 to monitor the speed of the transmission shaft 12. There are many ways to fix the transmission shaft 12. For example, the left and right ends of the transmission shaft 12 are both rotatably fixed to the frame through a bearing seat and a bearing; the left end of the transmission shaft 12 is connected to the driving motor in a transmission manner. Specifically:

[0038] like Figure 2 As shown, the left end of the transmission shaft 12 is matched with a driven gear, and the drive motor 11 is fixed to the frame 1 on the left side of the transmission shaft 12 by bolts. The drive connection is connected to the power supply of the traction equipment, and the motor shaft of the drive motor 11 is arranged inwardly and fixedly mounted with a driving gear. The driving gear is meshed and connected with the driven gear. When the drive motor 11 is working, it will drive the transmission shaft 11 to rotate.

[0039] Three seeding devices 2 are evenly spaced on the transmission shaft, and the seeding device 2 includes a seeding shell 21, a limiting component 22, a seeding disc 23 and a seeding tube 24. The seeding shell 21 includes a main shell 211 and a sub-shell 212 that are rotatably sleeved on the transmission shaft 12 from left to right. The main shell 211 and the sub-shell 212 are fixedly connected together by bolts, and the main shell 211 is fixedly connected to the frame 1 by bolts. Specifically: Figure 1 and Figure 3 As shown, a column 13 is welded laterally inside the crossbar of the front frame 1 of the main housing 211, and the main housing 211 is fixed to the columns on the adjacent side by bolts, so that the seed shell will not affect the transmission shaft when the transmission shaft rotates.

[0040] The top wall and bottom of the main shell 211 are respectively provided with a feed port 2111 and a discharge port 2112 connected to the outside, and the discharge port 2112 is directly below the transmission shaft in the main shell 211. The discharge port 2112 is connected to the discharge port of the upper seed storage device through a seed lowering tube, and the seeds in the seed storage device will flow into the seed discharge shell 21 through the seed lowering tube; the discharge port 2112 is matched with a seed discharge tube 24, and a furrow opener 4 is fixed to the bottom of the column 13 on the front side of the seed discharge tube 24 by bolts. The front end of the furrow opener 4 is sharp and in an inverted V shape. When the traction equipment drives the machine When the frame moves, the furrow opener 4 will open a sowing groove in the soil in the moving direction of the frame 1. A soil covering device is provided on the rear side of the seed discharging tube 24. The soil covering device includes fixed plates 51 symmetrically arranged on the left and right sides of the seed discharging tube 24. The fixed plates 51 are welded to the frame, and the rear ends of the sowing plates are fixed with soil covering plates 52 arranged downwardly inclined by bolts. The rear ends of the soil covering plates 52 are bent inwardly, and when the traction equipment drives the frame to move, the soil covering plates 52 on both sides of the soil covering device 5 are bent inwardly, and the soil discharged to both sides by the furrow opener 4 will be re-adjusted into the sowing groove.

[0041] The limiting component includes a limiting block 22, which is matched and sleeved on the transmission shaft in the auxiliary housing and can slide and rotate along the transmission shaft. Figure 5 and Figure 7 As shown, a fixed sleeve 221 is fixedly mounted on the transmission shaft in the auxiliary housing 212, and the left end of the fixed sleeve 221 extends outward from the auxiliary housing 212, and the limit block 22 is slidably mounted on the fixed sleeve 221, and can rotate and slide axially along the outer annular surface of the fixed sleeve, and the left end of the limit block 22 extends outward and is transmission-connected with the lever driving device, and the lever driving device drives the limit block to slide left and right along the transmission shaft, specifically:

[0042] like Figure 3-7As shown, the lever driving device 3 includes a transmission connection mechanism and an adjustment motor. The transmission connection mechanism includes a horizontal adjustment plate 31 arranged at intervals at the rear side of the seeder. A fixed shaft 32 is symmetrically rotated and fixed on the frame 1 on the left and right sides of the adjustment plate 31. A horizontal fixed platform 33 is radially arranged at the top of the fixed shaft 32. The left and right ends of the adjustment plate 31 are hinged to the tail end of the adjacent horizontal fixed platform through a pin shaft. There are many ways to fix the adjustment plate 31 and the adjacent side horizontal fixed platform 33. For example, the tail end of the horizontal fixed platform 33 is hinged with a right-angled driving short arm 33 through a fixed pin shaft 37, and the driving short arm 38 is arranged toward the inner side of the frame 1. The driving short arm 38 can be made in a variety of ways, for example, the driving short arm 38 can be made by bending the left and right ends of the condition 31; the adjusting motor 34 is vertically fixed under the frame on the left side of the adjusting plate 31, and the motor shaft of the adjusting motor 34 is arranged upward, and a driving gear 341 is fixed through the frame 1. The driving motor 34 is an ordinary stepping motor with a self-locking function of the shaft. A follower gear 321 is mounted on the fixed shaft 32 adjacent to the driving motor 34. The outer diameter of the follower gear 321 is larger than the outer diameter of the driving gear, and is meshed with the driving gear 341.

[0043] A pry bar 35 is fixed to the adjustment plate 31 on the left side of each seeding device 2 in the frame 1 through a pin for horizontal rotation, and the other end of the pry bar 35 is arranged toward the limit block 22 of the corresponding seeding device 2 and is hingedly connected to the limit block 22. Specifically: Figure 2 and Fig.11 As shown, the top of one end of the pry bar 35 facing the limit block 22 includes a fixed end fork 351, and the left end surfaces of the limit blocks 22 on both sides of the transmission shaft are symmetrically welded with hinge seats 222, and the two forks of the end fork 351 are rotated and fixed together with the hinge seats 22 on the corresponding sides of the limit block 22 along the vertical direction through the pin shaft; the upper edge of the pry bar 35 on the rear side of the end fork 351 is longitudinally opened with a strip hole 352, and a vertical limit rod 36 is slidably sleeved in the strip hole 352, and the upper and lower ends of the limit rod are fixed with fixed blocks, and are fixed to the auxiliary housing 2 on the rear side of the limit block through the fixed blocks in parallel and at intervals. 12, when the gear 321 is driven to rotate by the adjusting motor 34, the follower gear 321 will drive the horizontal fixed platform 33 to rotate around the fixed axis 32 through the fixed axis 32, and when the horizontal fixed platform 32 rotates, the adjusting plate 31 will be driven to rotate and move parallel to the fixed axis 32 through the fixed pin 37 and the driving short arm 38, and when the adjusting plate 31 rotates parallel to the fixed axis 32, the pry bar 35 will be driven through the pin to pull the limit block 22 to slide along the fixed shaft sleeve 221 with the limit rod 36 as the sliding fulcrum, so as to control the length of the limit block 22 extending into the auxiliary housing.

[0044] The seeding tray 23 is installed on the transmission shaft above the discharge port 2112. The front and rear sides of the seeding tray 23 are symmetrically and laterally fixed with arc walls 27. The upper and lower ends of the arc walls 27 are fixed with inclined guide plates 271. The guide plate 271 at the lower end of the arc wall is arranged toward the discharge port. The top of the seeding tray 23 is a temporary storage area. The seeds that fall into the seeding box along the lower seed tube will be temporarily stored in the temporary storage area. The seeding tray 23 includes a driving mechanism facing each other and a fixed seed tray 231 with the same outer diameter. The seed disc 231 and the moving seed disc 232 are fixedly mounted on the transmission shaft away from the side of the auxiliary housing 211, and the right end faces of the seed disc 231 and the main housing are in contact with the inner wall, and the two are independent of each other. When the transmission shaft rotates, the seed disc 231 will be driven to rotate in the main housing along with the transmission shaft. The moving seed disc 232 is coaxially slidably mounted on the transmission shaft on the left side of the seed disc 231, and the left end of the moving seed disc slides and seals through the inner wall of the main housing and extends into the auxiliary housing. Specifically:

[0045] like Figure 6 , Figure 7 and Fig. 9 As shown, a clearance opening matching the outer diameter of the moving seed disk is coaxially opened on the inner wall of the main shell on the left side of the moving seed disk, and the fixed shaft sleeve 221 in the auxiliary shell 212 extends into the main shell almost at the clearance opening. The middle part of the moving seed disk 232 is opened with an axial hole and is slidably mounted on the fixed shaft sleeve 221, and the left end of the moving seed disk 232 passes through the clearance opening to match and extend into the auxiliary shell 212; the end of the fixed seed disk and the circumferential side surface of the moving seed disk are both opened with multiple hemispherical grooves 281 evenly spaced inwardly along the circumference, and penetrate the disk body in opposite directions, and the fixed seed disk 231 and the moving seed disk 232 are They are connected together through opposing driving mechanisms, and the two corresponding grooves of the fixed seed disk and the movable seed disk are matched and combined to form a seed drop groove. The seeds in the temporary storage area will fall into the seed drop groove of the seed discharge disk located in the temporary storage area, and when the seed discharge disk rotates, it will drive the seeds in the seed drop groove to rotate along the arc wall 27 toward the seed discharge port 2112, and pass through the seed discharge port 2112 to fall into the seed discharge tube 24, and fall along the seed discharge tube 24 to the sowing groove opened by the furrow opener. The fixed seed disk 231 will drive the movable seed disk to slide along the transmission shaft into the sub-housing through the opposing driving mechanism and touch the limit block.

[0046] like Figure 7As shown, the opposite driving mechanism includes a limit driving rod 25 and a top spring 26, the top spring 26 is an ordinary top spring or an ordinary disc spring, and an end face of the movable seed disk 232 adjacent to the fixed seed disk 231 is axially inwardly provided with a mounting groove 2321, and 6 sliding holes 2322 that penetrate the movable seed disk are evenly spaced along the circumference in the mounting groove 2321, and the limit driving rod 25 is slidably sleeved in the sliding hole 2322, and the right end of the limit driving rod 25 extends outwardly from the sliding hole 2322 and is vertically welded to the fixed seed disk 231, and a top spring or a disc spring is sleeved on the limit driving rod between the movable seed disk and the fixed seed disk, and the two ends of the top spring or the disc spring are respectively supported together with the adjacent seed disks, and the top spring or the disc spring will axially push the movable seed disk to The auxiliary shell body slides and contacts with the limit block 22, thereby limiting the size of the seed drop groove, and when the limit block is controlled to penetrate into the auxiliary shell body by the lever driving device, the limit block 22 will push the movable seed disk 232 in contact with it to move along the fixed shaft sleeve 221 toward the fixed seed disk 231 or in the opposite direction, thereby the size of the seed drop groove of the seed disk in the seed meter can be adjusted according to the seeds to be sown. Compared with the existing seeder, the seeder provided by this embodiment has a simple structure. When in use, the size of the seed drop groove of the seed disk in the seed meter can be conveniently controlled by the lever driving device. The operation is convenient and there is no need to disassemble the seed meter, thereby saving the disassembly time and disassembly cost of the seed meter and improving the sowing efficiency.

[0047] Each seeding device 2 on the frame 1 is provided with a missed seeding detection device, which includes a controller and a time sensor 6. The speed sensor on the transmission shaft 12 is connected to the controller to transmit the actual speed of the transmission shaft 12 to the controller. The time sensor is installed on the seeding tube of the seeding device to detect the interval time of seeds falling in the seeding tube and is connected to the controller. The controller is fixed to the frame or seeding shell 21 by bolts. A power supply, a comparison control module and a speaker module are provided in the controller. The comparison control module and the speaker module are both connected to the power supply, and the comparison control module is controlled and connected to the speaker module. The time sensor and the speed sensor are both connected to the comparison control module, such as Fig.14 As shown, when in use, the comparison control module will automatically calculate the theoretical interval time T between the two seeds falling according to the data transmitted by the speed sensor. 理 , and combined with the seed drop allowable error time △t, the standard interval time T of the two seed drops is obtained 标 The range is T 标 =T 理 ± △t, when the time sensor measures the actual interval time T between the two seeds falling 实 When it is sent to the comparison control module, the comparison control module will 实 Compared with the calculated T 标 For comparison, if T 实 In T 标 If T 实Beyond T 标 If the range is exceeded, a missed broadcast will occur. The comparison control module will control the speaker module to emit a corresponding missed broadcast prompt tone. 实 Not reached, i.e. less than T 标 range, the seed meter replays, and the comparison control module controls the speaker module to emit a corresponding replay prompt sound. Compared with the existing seeding machine detection method, the missed seeding detection device on the seed meter provided in this embodiment has a wide range of application and is not affected by the sowing environment. When in use, the dust splashed by the furrow opener will not affect the use of the missed seeding detection device, and the detection is convenient. The standard time range T of the interval between the two seeds falling is calculated in real time. 标 The time interval between the two seeds actually falling is T 实 The measured results are accurate when compared. When missed or repeated broadcasts occur, the sowing personnel can make corresponding arrangements based on the prompt sound technology, which is easy to use.

[0048] Example 2

[0049] The difference between Example 2 and Example 1 is that Figure 6 As shown, a clearance groove 29 connected to the adjacent groove 281 is provided on the circumferential side surface of the seeding disk 231 above each groove 281 on the seeding disk 231, and the bottom of the discharge groove is inclined toward the groove 281. Compared with Example 1, when the seeding disk of the seeder provided in this embodiment rotates clockwise to discharge seeds outward, the rotating seeding disk will carry the seeds that fall into the seeding groove when rotating toward the seeding port below the seeding shell. Since the seeds protruding from the seeding groove will be blocked by the top of the arc wall 27, they will be discharged from the seeding groove along the bottom of the clearance groove 29, thereby preventing the protruding seeds from being blocked and cut off by the arc wall 27 when the rotating seeding disk carries the seeds that fall into the seeding groove when rotating toward the seeding port below the seeding shell, or preventing too many seeds from falling into the seeding groove from being damaged when moving along the arc wall 27, thereby affecting the survival and germination rate of the seeds.

[0050] Example 3

[0051] The difference between Example 3 and Example 2 is that Fig.10 As shown, the transmission shaft jacket with the follower gear 321 is provided with a dust cover 29, which is fixed to the frame, and the driving gear 341 at the top of the adjusting motor 34 and the follower gear 32 on the transmission shaft are both located in the dust cover 29, which can prevent soil dust from forming dirt on the follower gear and the driving gear during use, causing the transmission of the follower gear and the driving gear to get stuck.

[0052] Example 4

[0053] The difference between Example 4 and Example 3 is that Fig.12 and Fig.13As shown, an annular fixed platform 71 is coaxially welded to one end face of the movable seed disc adjacent to the limit block 22, and a thrust bearing 72 is mounted on the annular fixed platform, and a convex ring platform 74 is provided on the annular fixed platform 71 on the rear side of the thrust bearing 72, and the convex ring platform 74 is in contact with the inner bearing sleeve of the thrust bearing 72, and the outer diameter of the convex ring platform 72 is the same as the outer diameter of the inner bearing sleeve of the thrust bearing 72, and an end face of the limit block 22 adjacent to the movable seed disc 232 is coaxially welded to an outwardly protruding top support ring platform 73, and is in contact with the thrust bearing 72 mounted on the annular fixed platform of the movable seed disc 232, and the inner ring of the top support ring platform is straight The diameter size is the same as the inner diameter size of the outer bearing sleeve of the thrust bearing 72, so that the limit block 22 is in contact with the outer bearing sleeve of the thrust bearing 72 through the supporting ring platform 73. Compared with Example 3, when the seed disc rotates, the inner ring sleeve of the thrust bearing will be driven to rotate, and the limit block is supported together with the outer ring platform of the thrust bearing 72 through the supporting ring platform 73. The limit block 22 has no direct contact with the movable seed disc 232 of the seed disc 23, so that when the seed disc rotates, the limit block 22 will not generate rotational wear with the movable seed disc 232, which not only reduces the energy loss of the transmission shaft, but also improves the service life of the seed disc and the limit block.

[0054] Example 5

[0055] The difference between Example 5 and Example 4 is that Fig.15 and Fig.16 As shown, the anti-drop shell 8 includes an inner anti-drop shell 81 of a semi-barrel structure and an outer anti-drop shell 82 of an arc-shaped plate. The inner anti-drop shell 81 is installed in the groove of the fixed seed disk 231. The top of the arc wall at both ends of the inner anti-drop shell 81 is flush with the outer ring surface of the fixed seed disk. The bottom of the groove of the movable seed disk groove is axially opened to the left with a semi-annular slide groove that matches the inner anti-drop shell. The left end of the inner anti-drop shell 81 slides to the left and extends into the semi-annular slide groove of the corresponding groove of the movable seed disk, thereby connecting the movable seed disk and the adjacent groove of the fixed seed disk. The gaps between the grooves are blocked, and an external anti-drop shell 82 is matched and attached to the circumferential side walls between every two grooves of the fixed seed disk. The external anti-drop shell 82 connects the internal anti-drop shells in the two adjacent grooves together, thereby forming a cylindrical anti-drop shell, and the left end of the external anti-drop shell extends to the left to the moving seed disk, and is slidably attached to the circumferential side of the moving seed disk, thereby completely blocking the gap between the moving seed disk and the fixed seed disk, which can prevent seeds from being stuck in the gap between the moving seed disk and the fixed seed disk when in use.

Claims

1. An adjustable eye-wheel seeder with a missed seeding detection function, comprising a drive motor and a frame connected to a traction device, wherein a seed storage device is provided above the frame, characterized in that: A driving shaft, a seed metering device and a lever driving device are provided on the frame below the seed storage device. The transmission shaft is horizontally rotated and fixed in the frame, and a speed sensor is provided on the transmission shaft. One end of the transmission shaft is transmission-connected to the driving motor shaft; a plurality of seed metering devices are arranged at intervals on the transmission shaft, and a missed seeding detection device is provided on the seed metering device. The missed seeding detection device includes a controller and a sensor. The speed sensor is connected to the controller. The sensor is installed on the seeding tube of the seed metering device to detect the interval time of seeds falling in the seeding tube and to detect the interval time of seeds falling in the seeding tube. The controller is connected; the seeding device includes a seeding shell, a limiting component, a seeding plate and a seeding tube, the seeding shell includes a main shell and a sub-shell which are rotatably sleeved on the transmission shaft from left to right, the main shell is fixedly connected to the sub-shell, and the main shell is fixedly connected to the frame; the shell top wall and shell bottom in the main shell are respectively provided with a feed port and a discharge port which are connected to the outside, and a seeding tube is matched and installed on the discharge port; the limiting component includes a limiting block, the limiting block is matched and sleeved on the transmission shaft in the sub-shell, and can slide and rotate along the transmission shaft, and the left end of the limiting block is facing A sub-shell is extended outward and is connected to the lever driving device, and the lever driving device drives the limit block to slide left and right along the transmission shaft; the seeding plate is installed on the transmission shaft above the discharge port, and the seeding plate includes a driving mechanism facing each other and a fixed seed plate and a movable seed plate with the same outer diameter, the fixed seed plate is fixedly sleeved on the transmission shaft away from the side of the sub-shell, the movable seed plate is coaxially slidably sleeved on the transmission shaft on the left side of the fixed seed plate, and the sliding seal at the left end of the movable seed plate passes through the inner wall of the main shell and extends into the sub-shell; the circumferential side of the fixed seed plate and the movable seed plate A plurality of grooves are opened inwardly at even intervals along the circumference at one end adjacent to the surface, and penetrate the disc body in opposite directions. The fixed seed disc and the movable seed disc are connected together by opposite driving mechanisms, and the two corresponding grooves of the fixed seed disc and the movable seed disc are matched and combined to form a seed drop groove. The fixed seed disc drives the movable seed disc to slide along the transmission shaft into the auxiliary housing and touch the limit block through the opposite driving mechanism; the front and rear sides of the seed disc are symmetrically and laterally fixed with arc walls, and the upper and lower ends of the arc walls are fixed with inclined guide plates, and the guide plate at the lower end of the arc wall is arranged toward the discharge port; The controller is provided with a power supply, a comparison control module and a speaker module, the comparison control module and the speaker module are both connected to the power supply, and the comparison control module is control-connected to the speaker module, and the sensor and the speed sensor are both connected to the comparison control module; the opposite driving mechanism includes a limit driving rod and a top spring or a disc spring, an end surface of the movable seed disk adjacent to the fixed seed disk is provided with an installation groove inwardly, a plurality of sliding holes penetrating the movable seed disk are provided in the installation groove at intervals along the circumference, the limit driving rod is slidably sleeved in the sliding hole, the right end of the limit driving rod extends outwardly from the sliding hole, and is vertically fixed to the fixed seed disk, and a top spring or a disc spring is sleeved on the limit driving rod between the movable seed disk and the fixed seed disk, and the two ends of the top spring or the disc spring are respectively supported together with the adjacent seed disk.

2. The adjustable socket wheel seeder with missed seeding detection function according to claim 1 is characterized in that: The right side wall of the seed plate is adjacent to the inner wall of the main shell body and the two are independent of each other.

3. The adjustable socket wheel seeder with missed seeding detection function according to claim 1, characterized in that: The lever driving device includes a transmission connection mechanism and an adjusting motor, and the transmission connection mechanism includes a transverse adjustment plate arranged at intervals on the rear side of the seeder, and fixed shafts are symmetrically rotated and fixed on the frames on the left and right sides of the adjustment plate, and a horizontal fixed platform is radially provided on the top of the fixed shaft, and the left and right ends of the adjustment plate are fixed together with the tail ends of adjacent horizontal fixed platforms; the fixed shaft on one side of the adjusting rod is transmission-connected with the adjusting motor; a pry bar is rotatably fixed on the adjustment plate on the left side of each seeding device, and the other end of the pry bar is arranged toward the limit block and is hingedly connected to the limit block; a strip hole is longitudinally opened on the upper edge of the pry bar on the rear side of the limit block, and a vertical limit rod is slidably sleeved in the strip hole, and the upper and lower ends of the limit rod are fixed to the outer side wall of the auxiliary shell on the rear side of the limit block in parallel and at intervals through the fixed block.

4. The adjustable socket wheel seeder with missed seeding detection function according to claim 1, characterized in that: A clearance groove communicating with the adjacent groove is arranged above each groove on the seed fixing disk, and the groove bottom of the clearance groove is inclined toward the bottom of the groove.

5. The adjustable socket wheel seeder with missed seeding detection function according to claim 1, characterized in that: The inner side of the cross bar of the front side frame of the seed metering device is vertically welded with columns, and the main shell of the seed metering device is fixed with adjacent columns by bolts.

6. The adjustable socket wheel seeder with missed seeding detection function according to claim 5, characterized in that: A furrow opener is fixed at the bottom end of the column on the front side of the seed discharging pipe, and a soil cover is arranged on the rear side of the seed discharging pipe.

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