Corn interplanting alfalfa planting machine

Abstract

The present application relates to a kind of corn intercropping alfalfa planting machinery, it relates to the technical field of planting machinery, it includes traction seat and seeding vehicle, device table is fixedly installed on the upper side of seeding vehicle, the side of seeding vehicle away from traction seat is rotatably installed with rolling roller by connecting frame rod, traction seeding device for alfalfa planting is arranged on traction seat and device table;Traction seeding device includes telescopic cylinder fixedly inserted in device table, telescopic device hole for telescopic cylinder installation is passed through and arranged on device table, inductive controller for controlling the operation of telescopic cylinder is fixedly installed on the upper side of device table, traction piece is fixedly installed on the side of seeding vehicle towards traction seat;The present application can be suitable for different width of crop furrow, and solve the problem of easy to appear when seeding, and effectively avoid the situation that seeding personnel is scratched by corn pole leaf when alfalfa is seeded in corn furrow.

Description

Technical Field

[0001] This application relates to the technical field of planting machinery, and in particular to a planting machine for intercropping alfalfa with maize. Background Technology

[0002] Alfalfa is the common name for plants in the genus *Alfalfa*, also known as golden flower vegetable, and is a perennial flowering plant. The most famous variety is alfalfa, used as forage. Alfalfa comes in many varieties; it is a perennial herbaceous plant, similar to clover, drought-tolerant, high-yielding and of excellent quality, and also improves soil, hence its widespread popularity. It is widely cultivated, mainly for haymaking, silage, or as forage. In most parts of China, alfalfa is usually planted in furrows between crops, such as in corn intercropping. This improves soil structure; alfalfa is a perennial, deep-rooted plant with a well-developed root system. Its extensive root system is densely distributed and crisscrossed in the soil, which can aerate the soil, increase soil porosity, improve soil permeability, and enhance water conductivity. It also enriches the soil and improves soil nutrient status. During alfalfa growth, a large number of fibrous roots, root hairs, and root nodules die and fall off, gradually increasing soil organic matter and nitrogen levels with the length of planting years. After alfalfa fields are tilled, a large amount of organic matter remains in the soil. It can also regulate rainwater, reduce soil salinization, and increase the yield of agricultural and livestock products. Planting alfalfa improves soil structure, enhances soil fertility, and creates a favorable environment for the growth of subsequent crops.

[0003] For example, in the existing Chinese patent with publication number CN214282027U, a soil improvement alfalfa planting device is disclosed, which includes a vehicle body with four drive wheels at the bottom. The lower part of the vehicle body is arranged from front to back as follows: a fertilization device, a rotary tillage device, a harrowing device, a seeding device, and a compaction device. The fertilization device includes a fertilizer bin with several independent parallel feeding pipes at the lower end of the fertilizer bin. The rotary tillage device includes a gearbox and rotary tillage blades connected to the gearbox. The harrowing device includes two rows of harrow teeth. The seeding device includes a seed hopper with arc-shaped concave blocks on the inner walls of both sides of the lower part of the seed hopper. Cooperating rotating feeding wheels are arranged between the arc-shaped concave blocks. The compaction device includes a compaction roller. Using the aforementioned existing technology, during operation, the vehicle's movement is controlled by a control switch in the driver's cab. Fertilizer is added to the fertilizer bin, and when the cam rotates, it strikes one end of the baffle plate, causing the fertilizer to fall intermittently onto the ground. The telescopic cylinder is adjusted to control the depth of the rotary tiller, and the two rows of harrow teeth on the rear plow the tilled ground in one pass. Then, seeds added to the seed hopper are evenly distributed by rotating the feed wheel, sown through the seed tube, and compacted by the press roller.

[0004] However, the aforementioned existing technologies have the following technical defects:

[0005] I. Although the existing technology described above has several seed tubes arranged independently side by side, which can simultaneously sow multiple rows of alfalfa, there is only one seed hopper. The multiple seed tubes are connected to one seed hopper. As a result, multiple seed tubes will sow and feed at the same time during each operation. However, the width of the furrows between crops is not completely uniform. The above device cannot adjust the spacing between the multiple seed tubes, so it cannot be applied to crop furrows of different widths and has low applicability.

[0006] Second, when alfalfa needs to be sown in corn furrows, the corn intercropping is narrow and the corn stalks and leaves are long, making it very easy for the alfalfa to be scratched by the corn stalks and leaves during sowing. Continuous sowing operations will cause continuous damage to the health of the sowing personnel. The existing technology does not have a corresponding device to solve or mitigate this problem and reduce the harm to the health of the sowing personnel.

[0007] Based on this, there is still room for improvement in the existing alfalfa planting equipment for soil improvement to overcome the aforementioned technical shortcomings. Summary of the Invention

[0008] In order to be applicable to crop furrows of different widths, solve the problem of seed jamming during sowing, and effectively prevent sowing workers from being scratched by corn stalks and leaves when sowing alfalfa in corn furrows, this application provides a corn-alfalfa intercropping planting machine.

[0009] This application provides a maize-alfalfa intercropping planting machine, which adopts the following technical solution:

[0010] A corn-alfalfa intercropping planting machine includes a traction seat and a seeding vehicle. A device platform is fixedly installed on the upper side of the seeding vehicle. A press roller is rotatably installed on the side of the seeding vehicle away from the traction seat via a connecting frame rod. A traction and seeding device for alfalfa planting is provided on the traction seat and the device platform.

[0011] The traction seeding device includes a telescopic cylinder fixedly inserted into the device platform. The device platform has a telescopic hole for installing the telescopic cylinder. An induction controller for controlling the operation of the telescopic cylinder is fixedly installed on the upper side of the device platform. A traction component is fixedly installed on the side of the seeding vehicle facing the traction seat. A synchronous winch and a traction winch are rotatably installed on the traction seat via an upper round rod and a lower round rod, respectively. The traction seat has an upper through-hole for installing the synchronous winch and a lower through-hole for installing the traction winch. The induction controller and the synchronous winch are connected by a control rope, and the traction component and the traction winch are connected by a traction rope.

[0012] Preferably, the traction seeding device further includes L-side rods, positioning rods, a traction mechanism, and a feeding mechanism. The two L-side rods are respectively fixedly installed on both sides of the traction seat. The positioning rods are slidably mounted on the outer wall of the L-side rods by means of arc-shaped blocks. The traction seat has symmetrical through holes adapted to the positioning rods. The traction mechanism is located on the traction seat, and the feeding mechanism is located in the device platform.

[0013] Preferably, the traction mechanism includes a drive gear, a transmission gear, a transmission belt, a traction rod, and a traction turntable. The drive gear is fixedly sleeved on the upper rod. The transmission gear is rotatably mounted in the upper through-hole via a short rod and meshes with the drive gear. The transmission belt is sleeved on the short rod and the lower rod. The traction seat has a rectangular connecting hole communicating with the upper and lower through-holes for mounting the transmission belt. One end of the traction rod is fixedly mounted on the lower rod away from the transmission belt, and the other end extends outward through the traction seat. The traction seat has a through-hole communicating with the lower through-hole for the traction rod to pass through and be mounted. The traction turntable is fixedly sleeved on the extended end of the traction rod.

[0014] Preferably, the feeding mechanism includes a seed box, a seed delivery tube, a feeding assembly, and an adjusting assembly. The two seed boxes are symmetrically and slidably mounted on the device platform via two dovetail strips. The device platform has symmetrically provided grooves for the seed boxes to slide on. The side wall of the grooves on the device platform has dovetail grooves for the dovetail strips to slide on. A plurality of seed delivery tubes are vertically and fixedly mounted at equal intervals on the lower side of the seed box, and the seed delivery tubes are interconnected with the seed box. The lower side wall of the seed box has equidistantly provided pipe holes for the seed delivery tubes to be connected and installed. The grooves on the device platform have symmetrically provided adjusting sliding holes adapted to the seed delivery tubes. The feeding assembly is mounted on the seed delivery tube and the telescopic end of the telescopic cylinder. The adjusting assembly is located on the device platform and the seed box.

[0015] Preferably, the feeding assembly includes a limiting rod, a synchronous linkage rod, and a lower probe. The limiting rod is fixedly installed at the telescopic end of the telescopic cylinder. The two synchronous linkage rods are symmetrically limited and slidably installed on the lower side of the limiting rod through two dovetail limiting blocks. The limiting rod is provided with a limiting groove for the dovetail limiting blocks to slide. The lower probe is provided on the synchronous linkage rod and the seed delivery pipe.

[0016] Preferably, the probe includes a sidewall bar, a single convex round rod, a double convex round rod, a downward probe V-rod, a clearing cone rod, and an extension member. The sidewall bar is symmetrically fixedly installed on the outer wall of the seed delivery tube. The single convex round rod and the double convex round rod are slidably mounted on the sidewall bar through both sides of the synchronous linkage rod. The synchronous linkage rod has a convex round hole for the single convex round rod and the double convex round rod to pass through. The sidewall bar has an inner concave groove for the single convex round rod and the double convex round rod to slide. The downward probe V-rod is fixedly sleeved on the single convex round rod and the double convex round rod. The bottom end of the clearing cone rod is fixedly installed in the downward probe V-rod, and the upper end extends into the seed delivery tube and into the inner cavity of the seed box. The extension member is provided on the single convex round rod and the double convex round rod.

[0017] Preferably, the extension includes a first conical arc plate, a second conical arc plate, and a closed torsion spring. The first and second conical arc plates are rotatably sleeved on the single-convex round rod and the double-convex round rod, respectively, and are located on both sides of the downward protruding V-rod. The closed torsion spring is sleeved on the double-convex round rod. The seeding vehicle has downward protruding openings that are adapted to the first and second conical arc plates, which are equidistantly opened throughout.

[0018] Preferably, the adjustment assembly includes an L-shaped support, rectangular blocks, a bidirectional threaded rod, and an adjustment wheel. The L-shaped support is fixedly installed on the upper side of the device platform. The two rectangular blocks are respectively fixedly mounted on the two seed boxes. The bidirectional threaded rod is rotatably mounted on the L-shaped support, with both ends passing through the two rectangular blocks. The L-shaped support has a circular rotating hole for the bidirectional threaded rod to be rotatably mounted. The rectangular blocks have through-threaded holes adapted to the bidirectional threaded rod. The adjustment wheel is fixedly sleeved on the middle of the bidirectional threaded rod.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. Before planting, first place the planter at one end of the corn furrow. Then, the planter carries the traction seat through the corn furrow and places it at the other end. Press down on the arc-shaped block to insert the positioning rod into the soil through the through hole to firmly fix the traction seat at the other end of the corn furrow. Then, by rotating the traction turntable, the traction winch is rotated to pull the planter at the other end of the corn furrow, so that the planter can move in the corn furrow on its own. This avoids the planter being scratched by the corn stalks and leaves while walking continuously in the corn intercropping.

[0021] 2. Before pulling the seeder, rotate the double-threaded rod driven by the rotating adjustment wheel. With the cooperation of the double-threaded rod and the through threaded holes in the two rectangular blocks, the distance between the two seed boxes is adjusted and controlled. That is, the distance of the feeding components below the seed boxes is adjusted simultaneously. This allows the alfalfa to be planted in corn furrows of different widths by adjusting the distance between the two seed boxes.

[0022] 3. After each rotation of the traction turntable, the seeder is moved a certain distance and then traction stops. After the seeder stops, pulling the control rope activates the telescopic cylinder via the sensor controller, causing the telescopic end of the cylinder to move downwards. Under the action of the limit rod, the two synchronous linkage rods are driven downwards simultaneously, thereby driving the probe downwards. The lower ends of the probe V-rod, conical arc plate one, and conical arc plate two are driven into the soil below the seeder. After moving to the maximum extent, conical arc plate one and conical arc plate two will cooperate with the side wall of the probe opening, causing conical arc plate one and conical arc plate two to expand outwards synchronously, sowing alfalfa seeds into the soil below the seeder. The clearing cone rod moves together with the probe V-rod. During the movement, it can activate the clearing effect on the seed delivery tube to prevent seeds from accumulating and getting stuck in the seed delivery tube, which would cause seed jamming during sowing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the entire application.

[0024] Figure 2 This is a schematic cross-sectional view of the entire application.

[0025] Figure 3 This is a cross-sectional view of some components of the traction seeding device.

[0026] Figure 4 This is a sectional view of the feeding mechanism.

[0027] Figure 5 It is an exploded sectional view of the seed box, seed delivery tube, and device platform.

[0028] Figure 6 This is an exploded cross-sectional view of the feeding assembly.

[0029] Figure 7 This is an exploded view of the feeding assembly.

[0030] Figure 8 This is an exploded image of the probe.

[0031] Figure 9 These are exploded diagrams of single-convex round rods, double-convex round rods, downward-protruding V-shaped rods, and unblocking cone rods.

[0032] Figure 10 These are exploded diagrams of conical arc plate one, conical arc plate two, and a closed torsion spring.

[0033] Figure 11 It is a sectional view of the extension and the lower protrusion.

[0034] Figure 12 This is a screenshot showing the expanded version of the component.

[0035] Figure 13 This is a schematic diagram of the adjustment components.

[0036] Explanation of reference numerals in the attached drawings: 1. Traction seat; 12. Seeding vehicle; 13. Device platform; 14. Connecting frame rod; 15. Press roller; 2. Traction seeding device; 20. Telescopic cylinder; 131. Telescopic device hole; 21. Induction controller; 22. Traction component; 23. Upper round rod; 24. Lower round rod; 25. Synchronous winch; 26. Traction winch; 101. Upper through-hole; 102. Lower through-hole; 27. Control rope; 28. Traction rope; 29. ​​L-side rod; 291. Positioning rod; 3. Traction mechanism; 4. Feeding mechanism; 292. Arc-shaped pressing block; 103. Through-hole; 31. Drive gear; 32. Transmission gear; 33. Transmission belt; 34. Traction round rod; 35. Traction turntable; 36. Short round rod; 104. Rectangular connecting hole; 105. Round rod through-hole; 41. Seed box; 42. Seed delivery pipe; 5. Feeding assembly; 6. Adjustment assembly; 43. Dovetail strip; 132. Groove setting; 133. Dovetail slide; 411. Delivery pipe hole; 134. Adjustment slide hole; 51. Limiting rod; 52. Synchronous linkage rod; 7. Descending device; 53. Dovetail limiting block; 511. Limiting slide; 71. Side wall bar; 72. Single convex round rod; 73. Double convex round rod; 74. Descending V rod; 75. Unblocking cone rod; 8. Extension piece; 521. Convex rod round hole; 711. Concave slide; 81. Conical arc plate one; 82. Conical arc plate two; 83. Tightening torsion spring; 121. Descending through hole; 61. L-shaped support; 62. Rectangular locking block; 63. Bidirectional threaded rod; 64. Adjusting wheel; 611. Circular rotating hole; 621. Through threaded hole. Detailed Implementation

[0037] The following is in conjunction with the appendix Figures 1-13 This application will be described in further detail.

[0038] This application discloses a corn-alfalfa intercropping planting machine, which is applicable to crop furrows of different widths and solves the problem of seed jamming during sowing, as well as effectively preventing the sower from being scratched by corn stalks and leaves when sowing alfalfa in the corn furrows. The machine includes a traction seat 1 and a sowing cart 12. A device platform 13 is fixedly installed on the upper side of the sowing cart 12. A pressure roller 15 is rotatably installed on the side of the sowing cart 12 away from the traction seat 1 via a connecting frame rod 14. A traction sowing device 2 for alfalfa planting is provided on the traction seat 1 and the device platform 13. Under the action of the traction sowing device 2, the traction seat 1 provides traction for the sowing cart 12. During the traction movement of the sowing cart 12, the traction sowing device 2 can plant alfalfa seeds in the corn furrows. It can be adjusted to suit corn furrows of different widths. The traction action of the traction seat 1 on the sowing cart 12 prevents the sower from being scratched by corn stalks and leaves while continuously walking in the corn intercropping area.

[0039] Reference Figure 1 and Figure 2 As shown, the traction seeding device 2 includes a telescopic cylinder 20 fixedly inserted on the device platform 13. The telescopic end of the telescopic cylinder 20 is set towards the seeding vehicle 12, i.e., downward. The device platform 13 has a telescopic device hole 131 for installing the telescopic cylinder 20. An induction controller 21 for controlling the operation of the telescopic cylinder 20 is fixedly installed on the upper side of the device platform 13. After being sensed, the induction controller 21 can drive the telescopic cylinder 20 to extend downward and then retract to reset. A traction component 22 is fixedly installed on the side of the seeding vehicle 12 facing the traction seat 1. A synchronous winch 25 and a traction winch 26 are rotatably installed on the traction seat 1 through an upper round rod 23 and a lower round rod 24, respectively. The traction seat 1 has an upper through-hole 101 for installing the synchronous winch 25 and a lower through-hole 102 for installing the traction winch 26, respectively. The induction controller 21 and the synchronous winch 25 are connected by a control rope 27, and the traction component 22 and the traction winch 26 are connected by a traction rope 28.

[0040] When the traction winch 26 rotates under force, it can drive the seeding vehicle 12 through the traction rope 28 and the traction component 22. By pulling the control rope 27, the sensor controller 21 can be sensed. After the sensor controller 21 is sensed, it can drive the telescopic cylinder 20 to extend and retract.

[0041] Reference Figure 2 and Figure 3 As shown, specifically, the traction sowing device 2 also includes L-side rods 29, positioning rods 291, a traction mechanism 3, and a feeding mechanism 4. The two L-side rods 29 are fixedly installed on both sides of the traction seat 1. The positioning rods 291 are slidably set on the outer wall of the L-side rods 29 by means of the arc-shaped push block 292. The traction seat 1 is symmetrically provided with through holes 103 that are adapted to the positioning rods 291. Before planting, the sowing vehicle 12 is first placed at one end of the corn furrow. Then, the sowing personnel lift the traction seat 1 and pass it through the corn furrow to place the traction seat 1 at the other end. The arc-shaped push block 292 is pressed down to insert the positioning rods 291 into the soil through the through holes 103 to firmly limit the traction seat 1 at the other end of the corn furrow. The traction mechanism 3 is set on the traction seat 1. Then, by controlling the traction mechanism 3, the sowing vehicle 12 is moved. The feeding mechanism 4 is set in the device platform 13 and can be operated by the telescopic cylinder 20 to sow alfalfa seeds in the soil at the corn furrow.

[0042] Continue to refer to Figure 3As shown, considering the need to traction the seeder 12 and prevent the seeders from being scratched by corn stalks and leaves while walking continuously in the corn intercropping area, the traction mechanism 3 includes a drive gear 31, a transmission gear 32, a transmission belt 33, a traction rod 34, and a traction turntable 35. The drive gear 31 is fixedly sleeved on the upper rod 23. The transmission gear 32 is rotatably mounted in the upper through-hole 101 via the short rod 36 and meshes with the drive gear 31. The transmission belt 33 is sleeved on the short rod 36 and the lower rod 24. The traction seat 1 has an opening that connects to the upper through-hole 101. 01 and the lower through-hole 102 are connected to the rectangular connecting hole 104 for the installation of the transmission belt 33. When the lower round rod 24 is rotated under force, it can drive the upper round rod 23 to rotate in the opposite direction through the meshing of the transmission belt 33 and the transmission gear 32 with the drive gear 31. One end of the traction round rod 34 is fixedly installed at the end of the lower round rod 24 away from the transmission belt 33, and the other end extends outward through the traction seat 1. The traction seat 1 is provided with a round rod through-hole 105 that is connected to the lower through-hole 102 for the traction round rod 34 to be installed through. The traction turntable 35 is fixedly sleeved on the extended end of the traction round rod 34.

[0043] When the seeding vehicle 12 needs to be driven for alfalfa planting, the traction turntable 35 can be rotated to drive the traction winch 26 and the synchronization winch 25 simultaneously through the lower round rod 24 and the upper round rod 23. The rotation of the traction winch 26 can drive the seeding vehicle 12 by pulling the traction rope 28. The rotation of the synchronization winch 25 is to allow the excess control rope 27 to be wound into the synchronization winch 25 during the movement of the seeding vehicle 12, so as to avoid the inability to sense and control the sensor controller 21 through the control rope 27. It should be noted that the control rope 27 is always in a slack state. Even when the synchronization winch 25 winds up the control rope 27, it will not cause traction force on the control rope 27. Only when the seeding personnel manually pull the control rope 27 will a sensing signal be released to the sensor controller 21, and the sensor controller 21 will drive the telescopic cylinder 20 to extend and retract.

[0044] Reference Figure 4 and Figure 5As shown, since alfalfa seeds need to be planted in corn furrows, the feeding mechanism 4 includes a seed box 41, a seed delivery pipe 42, a feeding component 5, and an adjusting component 6. The two seed boxes 41 are symmetrically and slidably mounted on the device platform 13 via two dovetail strips 43. The device platform 13 has symmetrically provided grooves 132 for the seed boxes 41 to slide on, and dovetail grooves 133 for the dovetail strips 43 to slide on the sidewalls of the grooves 132. In this embodiment, preferably, four seed delivery pipes 42 are vertically and equidistantly fixedly installed on the lower side of the seed box 41, and the seed delivery pipes 42 are interconnected with the seed box 41. Each seed box 41 has four seed delivery pipes fixedly installed on its lower side. The lower sidewall of the seed box 41 has a through-wall... The device platform 13 has equidistant holes 411 for connecting and installing seed delivery tubes 42. A groove 132 on the device platform 13 has symmetrically symmetrically perforated adjustment sliding holes 134 adapted to the seed delivery tubes 42. The function of the adjustment sliding holes 134 is that when the seed box 41 is subjected to force and slides in the groove 132 to adjust the distance between the two seed boxes 41, the seed delivery tube 42 slides along with the seed box 41 in the adjustment sliding holes 134. The feeding assembly 5 is installed on the seed delivery tube 42 and the telescopic cylinder 20, and can be driven by the telescopic cylinder 20 to deliver alfalfa seeds from the seed box 41 for sowing. The adjustment assembly 6 is located on the device platform 13 and the seed box 41, and is used to adjust the planting distance between the two seed boxes 41 to suit corn furrows of different widths.

[0045] Reference Figure 6 and Figure 7 As shown, in order to cooperate with the telescopic cylinder 20 to transport alfalfa seeds, the feeding assembly 5 includes a limiting rod 51, a synchronous linkage rod 52, and a lower probe 7. The limiting rod 51 is fixedly installed at the telescopic end of the telescopic cylinder 20. The two synchronous linkage rods 52 are symmetrically limited and slidably installed on the lower side of the limiting rod 51 by two dovetail limiting blocks 53. The two synchronous linkage rods 52 are respectively located at the seed delivery pipe 42 below the two seed boxes 41. When the telescopic cylinder 20 is activated to telescopically operate, the two synchronous linkage rods 52 can be driven up and down synchronously through the limiting rod 51. The limiting rod 51 is provided with a limiting groove 511 for the dovetail limiting blocks 53 to slide. The lower probe 7 is provided on the synchronous linkage rod 52 and the seed delivery pipe 42, and is used to cooperate with the synchronous linkage rod 52 to transfer the alfalfa seeds in the seed box 41 to the soil in the corn furrow.

[0046] Reference Figures 8 to 10As shown, to ensure that each alfalfa seed can be successfully sown into the corn furrow, the probe 7 includes sidewall bars 71, a single convex round rod 72, a double convex round rod 73, a probe V-shaped rod 74, a clearing cone rod 75, and an extension piece 8. The sidewall bars 71 are symmetrically fixedly installed on the outer wall of the seed delivery tube 42, and each seed delivery tube 42 is symmetrically fixedly installed with two sidewall bars 71. The single convex round rod 72 and the double convex round rod 73 are respectively slidably mounted on the sidewall bars 71 through the synchronous linkage rod 52. It should be noted that one end of the single convex round rod 72, that is, the end that slides on the sidewall bar 71, is rectangular, and the end of the double convex round rod 73 that slides on the sidewall bar 71 is also rectangular. The other end is a round rod with a smaller diameter; the synchronous linkage rod 52 has a convex rod round hole 521 for the single convex round rod 72 and the double convex round rod 73 to pass through, and the side wall strip 71 has an inner concave groove 711 for the single convex round rod 72 and the double convex round rod 73 to slide and install. The downward probing V rod 74 is fixedly sleeved on the single convex round rod 72 and the double convex round rod 73. The bottom end of the unblocking cone rod 75 is fixedly installed in the downward probing V rod 74, and the upper end extends into the seed delivery tube 42 and extends into the inner cavity of the seed box 41. The bottom end of the unblocking cone rod 75 is tapered, and the diameter of the unblocking cone rod 75 is much smaller than the inner diameter of the seed delivery tube 42. The extension piece 8 is provided on the lower single convex round rod 72 and the double convex round rod 73 to realize the sowing of alfalfa seeds in the soil.

[0047] Reference Figures 10 to 12 The diagram shows the structure of the extension component 8 in this embodiment. The extension component 8 includes a first conical arc plate 81, a second conical arc plate 82, and a closing torsion spring 83. The first conical arc plate 81 and the second conical arc plate 82 are rotatably sleeved on the single convex round rod 72 and the double convex round rod 73, and are located on both sides of the downward protruding V-rod 74. The closing torsion spring 83 is sleeved on the double convex round rod 73, on the round rod at the smaller diameter end of the double convex round rod 73, and always drives the first conical arc plate 81 and the second conical arc plate 82 to rotate in the direction of the downward protruding V-rod 74. That is, without the action of external force, the first conical arc plate 81 and the second conical arc plate 82 are always in contact and attached to both sides of the downward protruding V-rod 74. When closed, the conical arc plate 82 and the downward probe V-rod 74 form a conical barrel shape. Alfalfa seeds in the seed box 41 enter the conical barrel formed by the three components through the seed delivery pipe 42. The seeding vehicle 12 is provided with downward probe openings 121 that are adapted to the conical arc plate 81 and the conical arc plate 82 at equal intervals. It should be noted that the downward probe openings 121 are divided into two parts. The upper part is the same as the maximum diameter of the upper end of the conical arc plate 81 and the conical arc plate 82, while the lower part is smaller than the maximum diameter of the upper end of the conical arc plate 81 and the conical arc plate 82. The two parts are set with an inclined guide surface, and there are four downward probe openings 121.

[0048] Driven by the telescopic cylinder 20, multiple single-convex round rods 72 and double-convex round rods 73 can be driven downwards simultaneously via two synchronous linkage rods 52, which in turn drives multiple conical barrels to move downwards. The conical ends of the conical barrels are inserted into the soil below the seeding vehicle 12. When the downward movement reaches its maximum stroke, the largest diameter of the upper ends of the conical arc plate 1 81 and the conical arc plate 2 82 will abut against the side wall of the downward probing opening 121. This will drive the conical arc plate 1 81 and the conical arc plate 2 82 to rotate away from the downward probing V rod 74, that is, to expand outwards to clear away the soil. At this time, the alfalfa seeds that were originally in the conical barrel composed of the three components can be removed. The seeds will then scatter outwards and be planted into the cleared soil; subsequently, the telescopic cylinder 20 retracts and resets, and the conical arc plate 1 81 and conical arc plate 2 82 will rotate and reset again under the action of the tightly closed torsion spring 83, and will tightly abut against both sides of the downward probe V rod 74; during the downward movement of the downward probe V rod 74, the unblocking cone rod 75 installed in the downward probe V rod 74 moves synchronously, and the up and down movement of the unblocking cone rod 75 can unblock the seed delivery pipe 42, so as to prevent alfalfa seeds from getting stuck in the seed delivery pipe 42 during sowing and feeding, causing the seed to get stuck.

[0049] Reference Figure 13 As shown, in order to be applicable to corn furrows of different widths, the sowing spacing of the two seed boxes 41 is adjusted according to the different widths of the corn furrows. The adjustment component 6 includes an L-shaped support 61, rectangular blocks 62, a bidirectional threaded rod 63, and an adjustment wheel 64. The L-shaped support 61 is fixedly installed on the upper side of the device platform 13. The two rectangular blocks 62 are respectively fixedly mounted on the two seed boxes 41. The bidirectional threaded rod 63 is rotatably mounted on the L-shaped support 61, and its two ends pass through the two rectangular blocks 62 respectively. The L-shaped support 61 has a circular rotating hole 611 through which the bidirectional threaded rod 63 is rotatably installed. The rectangular blocks 62 have through threaded holes 621 that are adapted to the bidirectional threaded rod 63. The adjustment wheel 64 is fixedly sleeved in the middle of the bidirectional threaded rod 63.

[0050] Before sowing, the adjusting wheel 64 is rotated according to the width of the corn furrow. The two-way threaded rod 63 cooperates with the through threaded holes 621 on the two rectangular blocks 62 to adjust the spacing between the two seed boxes 41, i.e., the sowing spacing, so as to achieve the purpose of being suitable for corn furrows of different widths. Then, after rotating the traction turntable 35, the sowing vehicle 12 is moved one distance and then the traction stops. After the sowing vehicle 12 stops, the control rope 27 is pulled to activate the telescopic cylinder 20 through the induction controller 21. The lower probe 7 is driven through the limit rod 51 and the synchronous linkage rod 52 to plant the alfalfa seeds in the soil. Then the telescopic cylinder 20 retracts and resets, synchronously driving the lower probe 7 to reset. The traction turntable 35 is rotated again to continue to move the sowing vehicle 12 forward. The pressing roller 15 on the rear side of the sowing vehicle 12 can roll and compact the area where alfalfa seeds are sown.

[0051] By repeatedly controlling the movement of the traction planter 12 at one end of the corn furrow and manipulating the sensor controller 21 to start the telescopic cylinder 20, alfalfa can be planted in the corn furrow without being scratched by the corn stalks and leaves. Furthermore, the planting spacing of the two seed boxes 41 can be adjusted by adjusting the component 6 to achieve the effect of planting alfalfa in corn furrows of different widths.

[0052] The implementation principle of this embodiment is as follows:

[0053] (1) Traction adjustment: Before planting, adjust the sowing spacing according to the actual width of the corn furrow by adjusting the component 6; then place the sowing vehicle 12 at one end of the corn furrow, and then the sowing personnel carry the traction seat 1 through the corn furrow and place the traction seat 1 at the other end. Press down the arc-shaped button 292 to insert the positioning rod 291 into the soil through the through hole 103 to firmly limit the traction seat 1 at the other end of the corn furrow.

[0054] (2) Control movement: By rotating the traction turntable 35, the traction winch 26 is driven to rotate to pull the seeding vehicle 12 at the other end of the corn furrow, so that the seeding vehicle 12 can move in the corn furrow on its own. After moving a certain distance, the traction stops. After the seeding vehicle 12 stops, the control rope 27 is pulled to activate the telescopic cylinder 20 through the induction controller 21, so that the telescopic end of the telescopic cylinder 20 moves downward. Under the action of the limit rod 51, the two synchronous linkage rods 52 can be driven to move downward in sync.

[0055] (3) Operation: Driven by the downward movement of the two synchronous linkage rods 52, the probe 7 moves downward and inserts the lower ends of the probe V rod 74, the conical arc plate 1 81 and the conical arc plate 2 82 into the soil below the seeding vehicle 12 to facilitate the subsequent sowing of alfalfa seeds.

[0056] (4) Alfalfa planting: When the current moves to the maximum stroke, the largest diameter of the upper end of the conical arc plate 1 81 and the conical arc plate 2 82 will contact the side wall of the lower probe 121, thereby driving the conical arc plate 1 81 and the conical arc plate 2 82 to rotate away from the lower probe V rod 74, that is, to expand outward to clear the soil. At this time, the alfalfa seeds that were originally in the conical barrel composed of the three will be scattered outward and planted in the cleared soil. After the sowing is completed, the sowing vehicle 12 is pulled forward and the pressing roller 15 located behind the sowing vehicle 12 can roll and compact the area where alfalfa seeds are sown.

[0057] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A corn-alfalfa intercropping planting machine, comprising a traction seat and a seeding vehicle, wherein a device platform is fixedly installed on the upper side of the seeding vehicle, and a press roller is rotatably installed on the side of the seeding vehicle away from the traction seat via a connecting frame rod, characterized in that: The traction seat and device platform are equipped with a traction and sowing device for alfalfa planting. The traction seeding device includes a telescopic cylinder fixedly inserted into the device platform. The device platform has a telescopic device hole for installing the telescopic cylinder. An induction controller for controlling the operation of the telescopic cylinder is fixedly installed on the upper side of the device platform. A traction component is fixedly installed on the side of the seeding vehicle facing the traction seat. A synchronous winch and a traction winch are rotatably installed on the traction seat through an upper round rod and a lower round rod, respectively. The traction seat has an upper through-hole for installing the synchronous winch and a lower through-hole for installing the traction winch. The induction controller and the synchronous winch are connected by a control rope, and the traction component and the traction winch are connected by a traction rope. The traction seeding device also includes L-side rods, positioning rods, traction mechanism and feeding mechanism. The two L-side rods are fixedly installed on both sides of the traction seat. The positioning rods are slidably set on the outer side wall of the L-side rods by arc-shaped blocks. The traction seat is symmetrically provided with through holes that are adapted to the positioning rods. The traction mechanism is set on the traction seat and the feeding mechanism is set in the device platform. The feeding mechanism includes a seed box, a seed conveying tube, a feeding component, and an adjustment component. The two seed boxes are symmetrically and slidably mounted on the device platform by two dovetail strips. The device platform is symmetrically provided with setting grooves for the seed boxes to slide on. The side wall of the setting groove is provided with a dovetail groove for the dovetail strips to slide on. Several seed conveying tubes are vertically and fixedly installed at equal intervals on the lower side of the seed box, and the seed conveying tubes are connected to the seed box. The lower side wall of the seed box is provided with equal intervals for the seed conveying tubes to be connected and installed. The setting groove is symmetrically provided with adjustment sliding holes adapted to the seed conveying tubes. The feeding component is installed on the seed conveying tube and the telescopic end of the telescopic cylinder. The adjustment component is provided on the device platform and the seed box. The feeding assembly includes a limiting rod, a synchronous linkage rod, and a lower probe. The limiting rod is fixedly installed at the telescopic end of the telescopic cylinder. The two synchronous linkage rods are symmetrically limited and slidably installed on the lower side of the limiting rod through two dovetail limiting blocks. A limiting groove for the dovetail limiting blocks to slide is provided on the limiting rod. The lower probe is located on the synchronous linkage rod and the seed delivery pipe. The probe includes a sidewall bar, a single convex round bar, a double convex round bar, a probe V-bar, a clearing cone bar, and an extension piece. The sidewall bars are symmetrically fixedly installed on the outer wall of the seed delivery tube. The single convex round bar and the double convex round bar are slidably mounted on the sidewall bars through the synchronous linkage rod. The synchronous linkage rod has a convex round hole for the single convex round bar and the double convex round bar to pass through. The sidewall bars have an inner concave groove for the single convex round bar and the double convex round bar to slide. The probe V-bar is fixedly sleeved on the single convex round bar and the double convex round bar. The bottom end of the clearing cone bar is fixedly installed in the probe V-bar, and the upper end extends into the seed delivery tube and into the inner cavity of the seed box. The extension piece is provided on the single convex round bar and the double convex round bar. The extension includes a first conical arc plate, a second conical arc plate, and a closed torsion spring. The first and second conical arc plates are rotatably sleeved on a single convex round rod and a double convex round rod, respectively, and are located on both sides of the downward probing V-rod. The closed torsion spring is sleeved on the double convex round rod. The seeding vehicle has downward probing openings that are equidistant from each other and are adapted to the first and second conical arc plates.

2. The alfalfa intercropping machinery for maize according to claim 1, characterized in that: The traction mechanism includes a drive gear, a transmission gear, a transmission belt, a traction rod, and a traction turntable. The drive gear is fixedly sleeved on the upper rod. The transmission gear is rotatably mounted in the upper through-hole via a short rod and meshes with the drive gear. The transmission belt is sleeved on the short rod and the lower rod. The traction seat has a rectangular connecting hole that communicates with the upper and lower through-holes for mounting the transmission belt. One end of the traction rod is fixedly mounted on the lower rod away from the transmission belt, and the other end extends outward through the traction seat. The traction seat has a through-hole that communicates with the lower through-hole for the traction rod to pass through and be mounted. The traction turntable is fixedly sleeved on the extended end of the traction rod.

3. The alfalfa intercropping machinery for maize according to claim 1, characterized in that: The adjustment assembly includes an L-shaped support, rectangular blocks, a bidirectional threaded rod, and an adjustment wheel. The L-shaped support is fixedly installed on the upper side of the device platform. The two rectangular blocks are respectively fixedly mounted on the two seed boxes. The bidirectional threaded rod is rotatably mounted on the L-shaped support, with both ends passing through the two rectangular blocks. The L-shaped support has a circular rotating hole for the bidirectional threaded rod to be rotatably mounted. The rectangular blocks have through-threaded holes adapted to the bidirectional threaded rod. The adjustment wheel is fixedly sleeved on the middle of the bidirectional threaded rod.

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