An opener with variable rate application function

Abstract

The application discloses a furrow opener with a variable fertilization function and belongs to the technical field of intelligent agricultural machines, which comprises a main frame, a driver arranged above a main frame body, two caterpillar belts arranged between the main frame bodies, two supporting frames arranged on the top of the main frame body, a soil breaking mechanism, a reinforcing mechanism and a fertilization mechanism. The soil breaking mechanism comprises a breakthrough claw arranged on one side of the caterpillar belt. The soil breaking mechanism can be flexibly switched between the two modes of soil turning and soil breaking by rotating the breakthrough claw. The reinforcing mechanism comprises a plurality of contact plates arranged below the main frame. The fertilization mechanism comprises a rotating column arranged above the supporting frame. A material containing groove is formed in the outer wall of the rotating column. In the application, the telescopic breakthrough claw of the soil breaking mechanism is used for realizing the pre-breaking and resistance reduction of hard soil. The self-adaptive floating reinforcing mechanism driven by the planetary gear system ensures the formation of the ditch wall and prevents the ditch wall from collapsing. The physical volume of the material containing groove is adjusted by using the releasing mechanism to realize the precise variable fertilization at a constant speed. The adaptability of the furrow opener to complex soil, the operation stability and the uniformity of the fertilization distribution are improved.

Description

Technical Field

[0001] This invention belongs to the field of intelligent agricultural machinery technology, and in particular relates to a furrow opener with variable fertilization function. Background Technology

[0002] With the rapid development of smart agriculture and precision machinery manufacturing technology, automated power machinery that integrates ditching, fertilization and covering has become the mainstream equipment for horticulture and field operations. Under the framework of smart agriculture, ditchers are no longer just simple soil-entry tools, but intelligent terminals that need to adjust operating parameters in real time according to the operating environment. By cooperating with positioning systems and sensors, they can achieve precise input of nutrients for different plots.

[0003] Traditional furrow openers typically have fixed soil-breaking components. When facing dry, compacted, or rocky hard soil, the high resistance to soil penetration causes severe vibrations in the machine. In loose soil or sandy areas, the sidewalls of the furrows created by traditional furrow openers are prone to immediate collapse, resulting in fertilizer being buried too deep before sowing and affecting crop absorption. Currently available variable displacement fertilizer applicators mainly control the amount of fertilizer dispensed by adjusting the motor speed. However, the motor response is slow when switching to low speeds, and it is prone to producing discharge pulsations, resulting in discontinuous fertilizer distribution in the field, which is difficult to meet the requirements of modern precision agriculture for consistent fertilization. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of poor soil environment adaptability, insufficient ditch formation stability, and limited variable fertilization accuracy of traditional trenchers, and to propose a trencher with variable fertilization function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A furrow opener with variable fertilization function includes a main frame, a driver is provided above the main frame, two tracks are provided between the main frame members, and two support frames are provided on the top of the main frame.

[0007] The soil breaking mechanism includes a breaking claw located on one side of the track. Rotating the breaking claw allows the soil breaking mechanism to flexibly switch between two modes: collecting and turning over soil and penetrating and breaking. The soil breaking angle of the breaking claw can be adjusted to locally break the trench to reduce the resistance of movement.

[0008] The reinforcement mechanism includes multiple contact plates located below the main frame, through which radial pressure is applied to the sidewalls of the ditch;

[0009] The fertilization mechanism includes a rotating column located above a support frame. The outer wall of the rotating column is provided with a material trough, and the amount of fertilizer applied is adjusted by changing the effective volume of the material trough.

[0010] As a further description of the above technical solution:

[0011] The ground-breaking mechanism also includes:

[0012] A connecting buckle, which engages with a corresponding position on the track;

[0013] A storage shell, wherein the storage shell is disposed on the top of the connecting buckle;

[0014] A rotating groove is formed inside the storage shell, and a rotating shaft is provided inside the rotating groove;

[0015] A passageway is provided inside the housing.

[0016] As a further description of the above technical solution:

[0017] The ground-breaking mechanism also includes:

[0018] The first rotating rod has one end rotatably connected to the inner wall of the storage shell via a column, and the other end rotatably connected to the side wall of the breakthrough claw via a column.

[0019] A locking post, one end of which is connected to a corresponding position on the outer wall of one side of the first rotating rod;

[0020] The second rotating rod has one end rotatably connected to the inner wall of the storage shell via a column, and the other end rotatably connected to the side wall of the breakthrough claw via a column.

[0021] As a further description of the above technical solution:

[0022] The ground-breaking mechanism also includes:

[0023] A locking block, wherein the locking block is disposed outside the rotating shaft;

[0024] An unlocking lever, the bottom end of which is rotatably connected to the bottom of the storage shell;

[0025] The first spring is located on one side of the unlocking rod, and the two ends of the first spring are rotatably connected to the protrusion of the locking block and the protrusion of the unlocking rod respectively through the block body;

[0026] A locking block, wherein the locking block is disposed on the inner wall of the storage shell;

[0027] The slot is formed on the outer wall of the breakthrough claw.

[0028] As a further description of the above technical solution:

[0029] The reinforcement mechanism also includes:

[0030] A support plate, wherein the support plate is disposed on one side of the main frame;

[0031] A central shaft, the top of which is rotatably connected to the bottom of the support plate at a corresponding position;

[0032] The first motor is mounted on the top of the support plate, and the output end of the first motor is connected to the top of the central shaft;

[0033] A rotating plate, the top of which is connected to the bottom of the central shaft.

[0034] As a further description of the above technical solution:

[0035] The reinforcement mechanism also includes:

[0036] A rotating frame, the top of which is connected to the bottom of a rotating plate via a column;

[0037] A sun gear, which is rotatably connected to a corresponding position in the middle of the rotating frame;

[0038] The planetary gears are rotatably connected to the corresponding positions at both ends of the rotating frame, and a chain drives the transmission between the sun gear and the planetary gears.

[0039] As a further description of the above technical solution:

[0040] The reinforcement mechanism also includes:

[0041] A movable rod, one end of which is rotatably connected to the bottom of one end of a rotating plate;

[0042] A linkage rod, one end of which is rotatably connected to the top of one end of the rotating frame, and the other end of which is rotatably connected to the corresponding position of the moving rod body;

[0043] A connecting plate is disposed at a corresponding position on the outer wall of one side of the moving rod.

[0044] As a further description of the above technical solution:

[0045] The reinforcement mechanism also includes:

[0046] A push-pull plate, one end of which is rotatably connected to one end of a moving rod, and the other end of which is rotatably connected to a corresponding position on the side wall of a contact plate;

[0047] The first telescopic rod has one end rotatably connected to the corresponding position on the outer wall of the push-pull plate, and the other end rotatably connected to one end of the connecting plate.

[0048] The collaborative rod has a T-shaped cross-section and includes three connecting ends, two of which are rotatably connected to the corresponding positions of the sidewall of the contact plate.

[0049] The second telescopic rod has one end of the first telescopic rod rotatably connected to the corresponding end of the cooperating rod, and the other end of the second telescopic rod rotatably connected to the other end of the connecting plate.

[0050] As a further description of the above technical solution:

[0051] The fertilization mechanism also includes:

[0052] The outer casing, wherein the outer wall of the outer casing is connected to the inner wall of the support frame;

[0053] Mounting bracket, which is mounted on one side of the outer wall of the housing;

[0054] The second motor is located on one side of the mounting bracket, and its output end is connected to one end of the rotating column.

[0055] A feed pipe, which is connected to the top of the outer casing;

[0056] The discharge pipe is connected to the bottom of the outer casing.

[0057] As a further description of the above technical solution:

[0058] The fertilization mechanism also includes:

[0059] A movable shell, which is fitted over the rotating column;

[0060] A lead screw, wherein the lead screw is disposed inside the movable housing, and one end of the lead screw passes through the interior of the rotating column;

[0061] The handwheel has one outer wall connected to the other end of the lead screw.

[0062] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0063] 1. In this invention, by setting up a soil breaking mechanism and using a retractable breaking claw, the soil breaking mode can be dynamically switched between modes. When dealing with hard soil layers, the breaking claw is released from its constraints and extends, using the stress concentration effect at its tip to destroy the local soil structure, reducing the resistance of the trencher during subsequent operations, avoiding the floating phenomenon of the trencher under high resistance conditions, and reducing the power consumption of the whole machine.

[0064] 2. In this invention, by setting up a reinforcement mechanism and using a planetary gear system to drive the moving rod to perform radial reciprocating motion, the contact plate can apply continuous and constant radial pressure to the side wall of the ditch. Even when the inner wall of the ditch is uneven, the contact plate can compensate in real time through elastic potential energy feedback, ensuring that the ditch wall is compacted and formed, avoiding local collapse and burying of fertilizer due to loose soil, and ensuring the quality of fertilization.

[0065] 3. In this invention, by setting up a fertilization mechanism, a screw-driven moving shell is used to change the physical volume of the trough. The amount of fertilizer can be precisely adjusted by a handwheel, ensuring that the amount of fertilizer applied in a single cycle is highly controlled under the premise that the rotation speed of the rotating column is constant, thereby improving the uniformity of fertilizer distribution in the direction of travel. Attached Figure Description

[0066] Figure 1 This is a schematic diagram of the main structure of a furrow opener with variable fertilization function proposed in this invention;

[0067] Figure 2 This is a schematic diagram showing the disassembled structure of a furrow opener with variable fertilization function proposed in this invention;

[0068] Figure 3 This is a schematic diagram of some parts of a furrow opener with variable fertilization function proposed in this invention;

[0069] Figure 4 This is a half-sectional structural diagram of the soil-breaking mechanism of a trencher with variable fertilization function proposed in this invention.

[0070] Figure 5 This is a half-section diagram of the soil-breaking mechanism of a trencher with variable fertilization function proposed in this invention from another angle.

[0071] Figure 6 For the present invention Figure 5 A magnified structural diagram of part A in the middle;

[0072] Figure 7 This is a schematic diagram of the reinforcement mechanism of a furrow opener with variable fertilization function proposed in this invention;

[0073] Figure 8 This is a half-sectional schematic diagram of the reinforcement mechanism of a furrow opener with variable fertilization function proposed in this invention;

[0074] Figure 9 This is a schematic diagram of the fertilization mechanism of a furrow opener with variable fertilization function proposed in this invention;

[0075] Figure 10 This is a partial cross-sectional view of a fertilization mechanism component of a furrow opener with variable fertilization function proposed in this invention.

[0076] Legend: 1. Main frame; 2. Drive unit; 3. Track; 4. Support frame; 5. Breaking mechanism; 501. Connecting buckle; 502. Storage shell; 503. Rotating groove; 504. Passage groove; 505. First rotating rod; 506. Locking pin; 507. Second rotating rod; 508. Breaking claw; 509. Rotating shaft; 510. Locking block; 511. Unlocking rod; 512. First spring; 513. Locking block; 514. Locking groove; 6. Reinforcing mechanism; 601. Support plate; 602. Central shaft; 603. First motor; 604. Rotating... 605. Moving plate; 606. Moving rod; 607. Linkage rod; 608. Rotating frame; 609. Sun gear; 610. Planetary gear; 611. Chain; 612. Connecting plate; 613. Push-pull plate; 614. First telescopic rod; 615. Coordinating rod; 616. Second telescopic rod; 617. Contact plate; 701. Fertilizer applicator; 702. Housing; 703. Mounting frame; 704. Feed pipe; 705. Discharge pipe; 706. Rotating column; 707. Second motor; 708. Material trough; 709. Moving shell; 710. Lead screw; 711. Handwheel. Detailed Implementation

[0077] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0078] Please see Figures 1-10 The present invention provides a technical solution: a furrow opener with variable fertilization function, including a main frame 1, a driver 2 provided above the main frame 1, two tracks 3 provided between the main frame 1, and two support frames 4 provided on the top of the main frame 1.

[0079] The soil breaking mechanism 5 includes a breaking claw 508 located on one side of the track 3. Rotating the breaking claw 508 allows the soil breaking mechanism 5 to flexibly switch between two modes: collecting and turning over soil and penetrating and breaking. The soil breaking angle of the breaking claw 508 can be adjusted to locally break the trench to reduce the resistance of movement.

[0080] The reinforcement mechanism 6 includes multiple contact plates 616 located below the main frame 1, which apply radial pressure to the sidewall of the ditch.

[0081] The fertilization mechanism 7 includes a rotating column 705 located above the support frame 4. The outer wall of the rotating column 705 is provided with a material trough 707, and the amount of fertilizer is adjusted by changing the effective volume of the material trough 707.

[0082] Breaking mechanism 5 also includes:

[0083] Connecting buckle 501 engages with the corresponding position of track 3;

[0084] Storage shell 502 is located on top of connecting buckle 501;

[0085] A rotating groove 503 is formed inside the storage shell 502, and a rotating shaft 509 is provided inside the rotating groove 503.

[0086] Passage slot 504 is located inside the storage shell 502.

[0087] Breaking mechanism 5 also includes:

[0088] The first rotating rod 505 has one end rotatably connected to the inner wall of the storage shell 502 via a column, and the other end rotatably connected to the side wall of the breakthrough claw 508 via a column.

[0089] Locking pin 506, one end of which is connected to a corresponding position on the outer wall of the first rotating rod 505;

[0090] The second rotating rod 507 has one end rotatably connected to the inner wall of the housing 502 via a column, and the other end rotatably connected to the side wall of the breakthrough claw 508 via a column.

[0091] Breaking mechanism 5 also includes:

[0092] Locking block 510 is located outside the rotating shaft 509;

[0093] Unlocking lever 511, the bottom end of unlocking lever 511 is rotatably connected to the bottom of storage shell 502;

[0094] The first spring 512 is located on one side of the unlocking rod 511, and the two ends of the first spring 512 are rotatably connected to the protrusion of the locking block 510 and the protrusion of the unlocking rod 511 respectively through the block body.

[0095] Card block 513 is located on the inner wall of the storage shell 502;

[0096] Slot 514 is located on the outer wall of the breakthrough claw 508.

[0097] Specifically: the track 3 is driven by the driver 2, the soil breaking mechanism 5 rotates synchronously with the track 3, and the housing 502 also has the function of turning over soil. When the soil texture is soft, there is no need to activate the breaking teeth. The housing 502 alone can turn over the soil to open trenches. When the soil breaking mechanism 5 is not activated, the preload of the first spring 512 acts on the locking block 510 and the unlocking rod 511 at the same time, so that the two can interfere and abut through the corresponding inclined surfaces. The locking pin 506 is located in the groove at the top of the locking block 510 to lock the position of the first rotating rod 505.

[0098] Furthermore, when the soil is hard, the unlocking lever 511 is moved away from the housing 502. The unlocking lever 511 rotates around its bottom end, pulling one end of the first spring 512. The first spring 512 is stretched, and the other end of the first spring 512 pulls the locking block 510, causing the locking block 510 to rotate around the rotating shaft 509 in the rotating groove 503. The locking pin 506 disengages from the top groove of the locking block 510 and enters the passage groove 504. The first rotating lever 505 is released, pushing the first rotating lever 505 to break through the claw 5. 08 simultaneously drives the first rotating rod 505 and the second rotating rod 507 to rotate around the end that is rotatably connected to the inner wall of the housing 502. The breaking claw 508 has damping between it and the first rotating rod 505 and the second rotating rod 507. The breaking claw 508 extends out of the housing 502. The locking block 513 set on the inner wall of the housing 502 engages with the locking groove 514 on the outer wall of the breaking claw 508 to fix the position of the breaking claw 508. This realizes the dynamic and on-demand intervention of the soil breaking mechanism 5. The resistance of the trencher during operation is reduced by the local pre-breaking of hard soil.

[0099] Please see Figures 7-8 The reinforcement mechanism 6 also includes:

[0100] Support plate 601 is located on one side of the main frame 1;

[0101] Central shaft 602, the top end of central shaft 602 is rotatably connected to the bottom of support plate 601 at the corresponding position;

[0102] The first motor 603 is mounted on the top of the support plate 601, and the output end of the first motor 603 is connected to the top of the central shaft 602.

[0103] Rotating plate 604, the top of rotating plate 604 is connected to the bottom of central shaft 602.

[0104] The reinforcement mechanism 6 also includes:

[0105] The top of the rotating frame 607 is connected to the bottom of the rotating plate 604 via a column;

[0106] Sun gear 608 is rotatably connected to the corresponding position in the middle of the rotating frame 607;

[0107] Planetary gears 609 are rotatably connected to the corresponding positions at both ends of the rotating frame 607. A chain 610 is used to drive the sun gear 608 and the planetary gears 609.

[0108] The reinforcement mechanism 6 also includes:

[0109] The movable rod 605 is rotatably connected at one end to the bottom of the rotating plate 604.

[0110] Linkage rod 606, one end of which is rotatably connected to the top of one end of rotating frame 607, and the other end of which is rotatably connected to the corresponding position of moving rod 605;

[0111] Connecting plate 611 is located at a corresponding position on the outer wall of one side of the moving rod 605.

[0112] The reinforcement mechanism 6 also includes:

[0113] Push-pull plate 612, one end of push-pull plate 612 is rotatably connected to one end of moving rod 605, and the other end of push-pull plate 612 is rotatably connected to the corresponding position of side wall of contact plate 616;

[0114] The first telescopic rod 613 has one end rotatably connected to the corresponding position of the outer wall of the push-pull plate 612, and the other end of the first telescopic rod 613 is rotatably connected to one end of the connecting plate 611.

[0115] The coordinating rod 614 has a T-shaped cross-section and includes three connecting ends, two of which are rotatably connected to the corresponding positions of the side wall of the contact plate 616.

[0116] The second telescopic rod 615 is rotatably connected at one end of the first telescopic rod 613 to the corresponding end of the cooperating rod 614, and at the other end of the second telescopic rod 615 is rotatably connected to the other end of the connecting plate 611.

[0117] Specifically: the bottom of the sun gear 608 is connected to the main frame 1 via a column; a chain 610 connects the sun gear 608 to the planetary gears 609 on both sides; a linkage rod 606 is connected to the planetary gears 609 via a column; the linkage rod 606, the moving rod 605, and the rotating plate 604 can rotate relative to each other; the first motor 603 drives the central shaft 602 to rotate via its output end; the central shaft 602 drives the planetary gears 609 to revolve around the sun gear 608; the sun gear 608 does not rotate, but the planetary gears 609 rotate synchronously via the chain 610; the planetary gears 609 drive the linkage rod 606 and the moving rod 609 to revolve around the sun gear 608. 05 rotates with the rotating plate 604, causing the moving rod 605 to drive the contact plate 616 to perform reciprocating telescopic motion in the radial direction to apply pressure to the inner wall of the ditch. When the inner wall of the ditch is uneven, the contact plate 616 deflects and simultaneously squeezes the push-pull plate 612 and the cooperating rod 614. The first telescopic rod 613 and the second telescopic rod 615 are compressed. The first telescopic rod 613 and the second telescopic rod 615 apply continuous feedback pressure to the contact plate 616 through the elastic potential energy of the springs coiled on their exteriors, so as to maintain the pressure of the contact plate 616 on the side wall of the ditch and prevent the ditch from collapsing locally and burying fertilizer due to loose soil.

[0118] Please see Figures 9-10 The fertilization unit 7 also includes:

[0119] The outer casing 701 is connected to the inner wall of the support frame 4.

[0120] Mounting bracket 702 is located on one side of the outer wall of housing 701;

[0121] The second motor 706 is located on one side of the mounting bracket 702, and the output end of the second motor 706 is connected to one end of the rotating column 705.

[0122] The feed pipe 703 is connected to the top of the outer casing 701;

[0123] The discharge pipe 704 is connected to the bottom of the outer casing 701.

[0124] Fertilizer application unit 7 also includes:

[0125] A movable housing 708 is fitted onto the outside of the rotating column 705;

[0126] A lead screw 709 is located inside the movable housing 708, with one end of the lead screw 709 passing through the interior of the rotating column 705.

[0127] Handwheel 710, one side of the outer wall of handwheel 710 is connected to the other end of lead screw 709.

[0128] Specifically: The outer wall of the rotating column 705 is provided with three material troughs 707, each with a different initial volume. The appropriate material trough 707 is selected according to actual needs. Fertilizer is injected into the outer shell 701 through the feed pipe 703. The inner plate of the feed pipe 703 guides the fertilizer to fall while preventing fertilizer from splashing. The external thread on the outer wall of the lead screw 709 meshes with the internal thread on the inner wall of the rotating column 705. The lead screw 709 is fixedly connected to the handwheel 710. The column part of the handwheel 710 is embedded in the outer wall of the movable shell 708, and the shell rotates relative to the movable shell 708.

[0129] When the handwheel 710 is turned, the lead screw 709 moves along the axis of the rotating column 705. The moving shell 708 moves away from the rotating column 705. The cross-sectional area of ​​the end of the moving shell 708 that is not fitted with the handwheel 710 is equal to the cross-sectional area of ​​the material trough 707. As the moving shell 708 moves away from the rotating column 705, the volume of the material trough 707 gradually increases. When the moving shell 708 moves, the volume changes of the three material troughs 707 are also different. Fertilizer enters the material trough 707 and fills it. The second motor 706 drives the rotating column 705 to rotate through the output end, causing the fertilizer filled in the material trough 707 to fall and leave through the discharge pipe 704 into the ditch.

[0130] Working principle: In use, the ditch opener is connected to the external agricultural machinery through the main frame 1. The user turns the handwheel 710 to adjust the amount of fertilizer applied at one time. When the soil at the predetermined location is hard, the user moves the unlocking lever 511 and pushes the first rotating lever 505 to make the breaking claw 508 extend out of the storage shell 502. After repeating the above operation to start the soil breaking mechanism 5 and complete the adjustment, the user drives the agricultural machinery. The agricultural machinery drives the track 3 to rotate through the driver 2. The track 3 drives the soil breaking mechanism 5 to rotate synchronously to open the ditch at the predetermined location. During the forward movement of the ditch opener, the agricultural machinery drives the reinforcement mechanism 6 through the first motor 603. The contact plate 616 of the reinforcement mechanism 6 reciprocates to compact the inner wall of the ditch. During the forward movement of the ditch opener, the agricultural machinery drives the fertilizer application mechanism 7 through the second motor 706 to quantitatively apply fertilizer into the ditch.

[0131] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0132] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A furrow opener with variable fertilization function, comprising a main frame (1), characterized in that, The main frame (1) is equipped with a driver (2) on top, two tracks (3) are provided between the main frame (1) frames, and two support frames (4) are provided on the top of the main frame (1) frame. The soil breaking mechanism (5) includes a breaking claw (508) located on one side of the track (3). Rotating the breaking claw (508) allows the soil breaking mechanism (5) to flexibly switch between two modes: collecting and turning over soil and penetrating and breaking. The soil breaking angle of the breaking claw (508) is adjusted to locally break the trench to reduce the travel resistance. The reinforcement mechanism (6) includes a plurality of contact plates (616) located below the main frame (1), through which radial pressure is applied to the sidewall of the ditch; The fertilization mechanism (7) includes a rotating column (705) located above the support frame (4). The outer wall of the rotating column (705) is provided with a material trough (707). The amount of fertilizer applied can be adjusted by changing the effective volume of the material trough (707).

2. A furrow opener with variable fertilization function according to claim 1, characterized in that, The ground-breaking mechanism (5) also includes: Connecting buckle (501), the connecting buckle (501) is engaged with the track (3) at the corresponding position; Storage shell (502), the storage shell (502) is disposed on the top of the connecting buckle (501); Rotating groove (503), the rotating groove (503) is opened inside the storage shell (502), and the rotating groove (503) is provided with a rotating shaft (509). A passageway (504) is provided inside the housing (502).

3. A furrow opener with variable fertilization function according to claim 2, characterized in that, The ground-breaking mechanism (5) also includes: The first rotating rod (505) has one end rotatably connected to the inner wall of the storage shell (502) via a column, and the other end rotatably connected to the side wall of the breakthrough claw (508) via a column. A locking post (506) is provided, one end of which is connected to a corresponding position on the outer wall of the first rotating rod (505); The second rotating rod (507) has one end rotatably connected to the inner wall of the storage shell (502) via a column, and the other end rotatably connected to the side wall of the breakthrough claw (508) via a column.

4. A furrow opener with variable fertilization function according to claim 2, characterized in that, The ground-breaking mechanism (5) also includes: Locking block (510), the locking block (510) is located outside the rotating shaft (509); Unlocking rod (511), the bottom end of which is rotatably connected to the bottom of the storage shell (502); The first spring (512) is located on one side of the unlocking rod (511), and the two ends of the first spring (512) are rotatably connected to the protrusion of the locking block (510) and the protrusion of the unlocking rod (511) respectively through the block body; A locking block (513) is disposed on the inner wall of the storage shell (502); The slot (514) is formed on the outer wall of the breakthrough claw (508).

5. A furrow opener with variable fertilization function according to claim 1, characterized in that, The reinforcement mechanism (6) also includes: Support plate (601), the support plate (601) is located on one side of the main frame (1); A central shaft (602) is rotatably connected at its top end to the bottom end of a support plate (601). The first motor (603) is mounted on the top of the support plate (601), and the output end of the first motor (603) is connected to the top of the central shaft (602); A rotating plate (604) is connected at its top to the bottom of a central shaft (602).

6. A furrow opener with variable fertilization function according to claim 5, characterized in that, The reinforcement mechanism (6) also includes: A rotating frame (607) is provided, the top of which is connected to the bottom of a rotating plate (604) via a column. A sun gear (608) is rotatably connected to the corresponding position in the middle of the rotating frame (607); Planetary gears (609) are rotatably connected to the two ends of the rotating frame (607) at corresponding positions. A chain (610) is connected between the sun gear (608) and the planetary gears (609).

7. A furrow opener with variable fertilization function according to claim 6, characterized in that, The reinforcement mechanism (6) also includes: A movable rod (605), one end of which is rotatably connected to the bottom of one end of a rotating plate (604); Linkage rod (606), one end of which is rotatably connected to the top of one end of rotating frame (607), and the other end of which is rotatably connected to the corresponding position of moving rod (605); A connecting plate (611) is provided on the outer wall of the moving rod (605) at a corresponding position.

8. A furrow opener with variable fertilization function according to claim 7, characterized in that, The reinforcement mechanism (6) also includes: A push-pull plate (612) is provided, with one end of the push-pull plate (612) rotatably connected to one end of the moving rod (605), and the other end of the push-pull plate (612) rotatably connected to the corresponding position of the side wall of the contact plate (616). The first telescopic rod (613) has one end rotatably connected to the corresponding position of the outer wall of the push-pull plate (612), and the other end of the first telescopic rod (613) is rotatably connected to one end of the connecting plate (611). The collaborative rod (614) has a T-shaped cross-section and includes three connecting ends, two of which are rotatably connected to the corresponding positions of the side wall of the contact plate (616). The second telescopic rod (615) has one end of the first telescopic rod (613) rotatably connected to the corresponding end of the cooperating rod (614), and the other end of the second telescopic rod (615) rotatably connected to the other end of the connecting plate (611).

9. A furrow opener with variable fertilization function according to claim 1, characterized in that, The fertilization mechanism (7) also includes: The outer shell (701) is connected to the inner wall of the support frame (4); Mounting bracket (702), the mounting bracket (702) is disposed on one side of the outer wall of the housing (701); The second motor (706) is located on one side of the mounting bracket (702), and the output end of the second motor (706) is connected to one end of the rotating column (705); The feed pipe (703) is connected to the top of the outer casing (701); The discharge pipe (704) is connected to the bottom of the outer shell (701).

10. A furrow opener with variable fertilization function according to claim 1, characterized in that, The fertilization mechanism (7) also includes: A movable shell (708) is fitted over the outside of the rotating column (705); A lead screw (709) is disposed inside the movable housing (708), and one end of the lead screw (709) passes through the interior of the rotating column (705); The handwheel (710) has one outer wall connected to the other end of the lead screw (709).

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