Adjustable fertilizing device of no-tillage planter and no-tillage planter

Abstract

The utility model discloses an adjustable fertilizing device of a no-tillage planter and the no-tillage planter, belongs to the technical field of no-tillage planters, and solves the problems that a furrow opener cannot be flexibly adjusted and is difficult to adapt to different hardness. According to the technical scheme, the fertilizer applicator mainly comprises a machine frame, a supporting shaft rotationally connected with the machine frame and a furrow opener fixed to the supporting shaft, the furrow opener comprises two discs and a fertilizer applying pipe, the edges of the two discs are attached to form a furrow opening part, the fertilizer applying pipe is located between the two discs, the machine frame is connected with an adjusting device, and the adjusting device is connected with the machine frame. The output end of the adjusting device is rotationally connected with the supporting shaft, and the adjusting device drives the furrow opener to swing around the axis of the supporting shaft through the supporting shaft so as to achieve position adjustment of the furrow opening part. The adjustable furrow opener is mainly used for flexibly adjusting the furrow opener.

Description

Technical Field

[0001] The utility model shows an adjustable fertilizing device of a no-tillage seeder and the no-tillage seeder, belonging to the technical field of no-tillage seeders. Background Art

[0002] Compared with traditional tillage methods, no-till seeders have obvious advantages in high efficiency and soil optimization. They have been widely promoted in recent years. At the same time, with the popularization of mechanized agricultural operations, no-till seeders came into being.

[0003] No-till seeders do not require the process of plowing and leveling the soil during use. The field soil used for no-till seeders is often uneven, and the soil hardness in different places is also different. The existing no-till seeder uses a furrow opener to open furrows and apply fertilizers. The furrow opener is formed by splicing two discs, and part of the edges of the two discs fit together as a furrow opening part. In the furrow opener, the distance between the two discs gradually increases as they move away from the furrowing part. During the furrowing process, the furrowing part contacts the soil and breaks the soil, and then the disc separates the soil to achieve furrowing.

[0004] In the prior art, in order to improve the efficiency of furrowing and sowing, a support shaft is usually connected to a frame, and a number of furrow openers are arranged at intervals on the support shaft. The furrow openers are fixed relative to the support shaft, and the support shaft can only be raised and lowered relative to the frame. Therefore, the angle between the furrowing part and the ground remains basically unchanged, thereby making the soil breaking performance of the furrow opener basically unchanged. However, the soil hardness in different places is different. When the soil hardness is too hard, the soil breaking efficiency of the furrow opener may be reduced; when the soil hardness is too soft, it may affect the furrowing width, thereby making it difficult for the furrow opener to achieve the best furrowing effect. Utility Model Content

[0005] The utility model aims to solve the problem that the furrow opener cannot be flexibly adjusted and is difficult to adapt to soils of different hardnesses. To this end, an adjustable fertilization device of a no-till seeder and a no-till seeder are provided, and the furrow opener can be flexibly adjusted.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An adjustable fertilization device for a no-till seeding machine comprises a frame, a support shaft rotatably connected to the frame, and a furrow opener fixed to the support shaft, the furrow opener comprising two discs and a fertilizer pipe, the edges of the two disc parts are fitted together to form a furrowing portion, the fertilizer pipe is located between the two discs, the frame is connected to an adjustment device, the output end of the adjustment device is rotatably connected to the support shaft, and the adjustment device drives the furrow opener to swing around the axis of the support shaft through the support shaft to achieve position adjustment of the furrowing portion.

[0008] The beneficial effects of adopting the utility model are:

[0009] The adjusting device described in the utility model can control the support shaft to rotate around its axis, thereby driving the furrow opener to swing around the axis of the support shaft. As the furrow opener swings, the position of the furrow opening part will also change accordingly, so that the furrow opener can be suitable for soils of different hardness. It should be noted that the part where the edges of the two discs in the furrow opener are separated is the soil dividing part. When the hardness of the soil is too large, the furrow opener is controlled to swing through the adjusting device so that the furrow opening part is lower than the center axis of the disc. After the furrow opener is extended into the soil, the contact area between the furrow opening part and the soil can be increased, so that the furrow opening part can be The furrowing performance of the furrow opener is improved, which helps to improve the furrowing efficiency of the fertilizing device. When the soil is too soft, the furrow opener is controlled to swing through the adjusting device so that the furrowing part is higher than the center axis of the disc. After the furrow opener is extended into the soil, the soil dividing part can be extended into the soil more. The distance between the two discs in the soil dividing part is larger, and a wider furrow can be opened after passing through the soil. The fertilizing device can be suitable for soils of different hardness by adjusting the furrow opener, which makes the use of the furrow opener more flexible and helps to improve the furrowing effect and efficiency.

[0010] Preferably, the adjusting device comprises a mounting seat and an adjuster, the mounting seat is connected to the frame, the support shaft is fixedly connected with a transmission rod, and the transmission rod is rotationally connected to the output end of the adjuster.

[0011] Preferably, the regulator includes a telescopic rod and an adjusting hand wheel, the telescopic rod includes an inner rod and an outer rod that slide against each other, the adjusting hand wheel is rotatably arranged at the top of the telescopic rod, the top of the inner rod is connected to the adjusting hand wheel by transmission, the bottom of the inner rod is connected to the transmission rod by rotation, and the adjusting hand wheel drives the inner rod to extend and retract relative to the outer rod. By adopting the above technical solution, the swing of the furrow opener can be controlled by adjusting the hand wheel, which can make the adjustment of the furrow opener more convenient and labor-saving.

[0012] Preferably, a support seat is provided on the frame, the mounting seat is fixed to the outer surface of the outer rod, and the mounting seat is rotatably connected to the support seat.

[0013] Preferably, the adjusting handwheel is connected to a transmission screw, the top of the inner rod is provided with a through hole for the transmission screw to extend into, a nut is fixed to the inner wall of the through hole, the transmission screw and the nut thread cooperate, the inner rod and the outer rod are anti-rotation cooperated, and the adjusting handwheel drives the transmission screw to rotate so that the inner rod slides relative to the outer rod.

[0014] Preferably, the furrow opener is provided with a connecting plate for connecting to the support shaft, the outer surface of the support shaft is provided with elastic parts, the connecting plate has a connecting end fixedly connected to the support shaft, and the elastic part is confined between the connecting end and the support shaft. By adopting the above-mentioned technical scheme, the elastic part can form a buffer between the connecting end and the support shaft, which helps to reduce the impact force between the connecting end and the support shaft, reduce the possibility of damage to the connecting end and the support shaft, and help to improve the service life of the connecting end and the support shaft; in addition, when the elastic part is clamped between the connecting end and the support shaft, the elastic part is squeezed and deformed, so that the elastic part can be fully filled between the connecting end and the support shaft, making the connection between the connecting end and the support shaft more stable and reliable, reducing the possibility of shaking between the connecting end and the support shaft, and helping to improve the connection stability between the support shaft and the furrow opener.

[0015] Preferably, the support shaft is a square tube, and four elastic parts are distributed on the outer surface of the support shaft, and the four elastic parts are respectively located on the four sides of the square tube, and the connecting end cooperates with the support shaft to clamp the elastic parts. With the above technical solution, the elastic parts are located on the outer surface of the support shaft, and the connecting end is fixed to the support shaft by squeezing the elastic parts. During the fertilization process, the furrow opener will be subject to soil resistance, so torque will be generated between the connecting end and the support shaft. The elastic parts can reduce the torque on the support shaft and reduce the possibility of damage to the support shaft.

[0016] Preferably, the elastic member has a through hole for the support shaft to pass through, the structure of the through hole matches the outer circumference of the support shaft, and the elastic member is sleeved on the outer circumference of the support shaft.

[0017] Preferably, the frame is provided with a connecting seat, the connecting seat is provided with an axial hole for the support shaft to pass through, and the support shaft is rotatably connected to the connecting seat.

[0018] The utility model also shows a no-till seeder, including a frame, on which a sowing mechanism and a fertilizing mechanism are arranged, wherein the fertilizing mechanism includes a storage barrel for storing fertilizer and a fertilizing device for fertilizing, and the fertilizing device adopts an adjustable fertilizing device as described in any one of the above items.

[0019] Other features and advantages of the present invention will be disclosed in detail in the following specific implementations and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Figure 1 This is a schematic structural diagram of an adjustable fertilizing device of a no-tillage seeder according to the utility model;

[0022] Figure 2 for Figure 1 A partial enlarged view of part A;

[0023] Figure 3 It is a front view of a furrow opener in an adjustable fertilization device of a no-till seeder of the utility model;

[0024] Figure 4 It is a rear view of a furrow opener in an adjustable fertilization device of a no-till seeder of the utility model;

[0025] Figure 5 It is a cross-sectional view of a furrow opener in an adjustable fertilization device of a no-till seeder according to the utility model;

[0026] Figure 6 It is a side view of a furrow opener in an adjustable fertilization device of a no-till seeding machine according to the utility model, with the furrow opener swinging to the front end;

[0027] Figure 7 The utility model is a side view of the rearmost end of the swing of a furrow opener in an adjustable fertilization device of a no-till seeding machine.

[0028] Figure numerals: 1, frame; 11, support seat; 12, connecting seat; 121, shaft hole; 2, support shaft; 3, adjuster; 31, telescopic rod; 311, outer rod; 312, inner rod; 32, adjusting hand wheel; 33, mounting seat; 4, furrow opener; 41, disc; 411, furrowing part; 412, soil dividing part; 413, central axis; 42, fertilizer pipe; 43, connecting plate; 431, connecting end; 44, elastic member. DETAILED DESCRIPTION

[0029] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Embodiment 1:

[0034] like Figures 1 to 7 As shown, this embodiment shows an adjustable fertilization device of a no-till seeding machine, including a frame 1, a support shaft 2 rotatably connected to the frame 1, and a furrow opener 4 fixed to the support shaft 2, the furrow opener 4 including two discs 41 and a fertilizer pipe 42, the edges of the two discs 41 are partially fitted to form a furrowing portion 411, the fertilizer pipe 42 is located between the two discs 41, the frame 1 is connected to an adjusting device, the output end of the adjusting device is rotatably connected to the support shaft 2, the adjusting device drives the furrow opener 4 to swing around the axis of the support shaft 2 through the support shaft 2, so as to achieve position adjustment of the furrowing portion 411.

[0035] The adjusting device described in this embodiment can control the support shaft 2 to rotate around its axis, thereby driving the furrow opener 4 to swing around the axis of the support shaft 2. As the furrow opener 4 swings, the position of the furrow opening portion 411 will also change accordingly, so that the furrow opener 4 can be suitable for soils of different hardness. It should be noted that the portion where the edges of the two discs 41 in the furrow opener 4 are separated is the soil dividing portion 412. When the hardness of the soil is too high, the furrow opener 4 is controlled to swing by the adjusting device so that the furrow opening portion 411 is lower than the center axis 413 of the disc 41. After the furrow opener 4 is extended into the soil, the contact area between the furrow opening portion 411 and the soil can be increased, so that the furrow opening portion 411 1 can be fully utilized, thereby improving the furrowing performance of the furrow opener 4, which is helpful to improve the furrowing efficiency of the fertilizing device; when the hardness of the soil is too soft, the furrow opener 4 is controlled to swing through the adjusting device, so that the furrowing portion 411 is higher than the central axis 413 of the disc 41. After the furrow opener 4 extends into the soil, the soil dividing portion 412 can be extended into the soil more, and the distance between the two discs 41 in the soil dividing portion 412 is larger, and a wider furrow can be cultivated after passing through the soil; the fertilizing device can be suitable for soils of different hardness by adjusting the furrow opener 4, so that the use of the furrow opener 4 is more flexible, which is helpful to improve the furrowing effect and efficiency.

[0036] like Figure 1 and Figure 2 As shown, in this embodiment, a connecting seat 12 is provided on the frame 1, and an axial hole 121 for the support shaft 2 to pass through is provided at one end of the connecting seat 12 away from the frame 1, and the support shaft 2 is rotatably connected to the connecting seat 12 through the axial hole 121, and the connecting seat 12 includes a first connecting arm and a second connecting arm arranged in parallel, and the frame 1 is provided with a support seat 11 between the first connecting arm and the second connecting arm, and the adjusting device includes a mounting seat 33 and an adjuster 3, and the adjuster 3 is located between the first connecting arm and the second connecting arm, and the mounting seat 33 is fixed to the surface of the adjuster 3, and the adjuster 3 is rotatably connected to the support seat 11 through the mounting seat 33, and a transmission rod is fixedly sleeved on the support shaft 2, one end of the transmission rod is fixedly connected to the support shaft 2, and the other end is rotatably connected to the output end of the adjuster 3.

[0037] like Figure 6 and Figure 7As shown, the regulator 3 in this embodiment includes a telescopic rod 31 and an adjusting hand wheel 32, the telescopic rod 31 includes an inner rod 312 and an outer rod 311 which can slide relative to each other, wherein a mounting seat 33 is fixed to the outer surface of the outer rod 311, and the adjusting hand wheel 32 is rotatably arranged at the top of the telescopic rod 31, the top of the inner rod 312 is transmission-connected with the adjusting hand wheel 32, the bottom end of the inner rod 312 extends out of the bottom end of the outer rod 311, and the top end of the inner rod 312 is rotationally connected with the transmission rod; during the adjustment process, the user controls the rotation of the adjusting hand wheel 32, and during the rotation of the adjusting hand wheel 32 The inner rod 312 is driven to slide along the outer rod 311. When the inner rod 312 slides downward relative to the outer rod 311, the end of the inner rod 312 pushes the transmission rod to rotate clockwise around the axis of the support shaft 2, and the support shaft 2 rotates synchronously with the transmission rod and drives the furrow opener 4 to swing to the front end; and when the inner rod 312 slides upward relative to the outer rod 311, the end of the inner rod 312 generates an upward pulling force on the transmission rod, causing the transmission rod to rotate counterclockwise around the axis of the support shaft 2, and the support shaft 2 rotates synchronously with the transmission rod and drives the furrow opener 4 to swing to the rear end.

[0038] The inner rod 312 and the outer rod 311 described in the present embodiment are both square sleeves, and the outer rod 311 is sleeved on the outside of the inner rod 312. The outer rod 311 and the inner rod 312 can achieve anti-rotation cooperation through their own structures. Of course, it is understandable that in other embodiments, sliding cooperation grooves and protrusions can be provided between the outer rod 311 and the inner rod 312, wherein the grooves are distributed along the length direction of the outer rod 311 and the inner rod 312, and the adjusting hand wheel 32 is fixedly connected to the transmission screw, and the adjusting hand wheel 32 rotates to drive the transmission screw to rotate. The top of the inner rod 312 is provided with a through hole for the transmission screw to extend into, and the inner rod 312 is hollow to facilitate the transmission screw to extend into the inner rod 312. A nut is provided on the inner wall of the through hole, and the transmission screw and the nut thread cooperate. The transmission screw rotates and the inner rod 312 slides along the length direction of the outer rod 311 under the action of the nut.

[0039] In this embodiment, the telescopic rod 31 is extended and retracted by controlling the adjusting hand wheel 32, thereby realizing the swing of the furrow opener 4, making the position adjustment of the furrow opener 4 more convenient and labor-saving, thereby making the use of the furrow opener 4 more flexible and applicable to soils of different hardnesses, which helps to improve the application range of the furrow opener 4; in addition, the adjusting hand wheel 32 is located at the top of the telescopic rod 31, which can make it more convenient for the user to operate the adjusting hand wheel 32, so that the user can adjust the furrow opener 4 in real time during the fertilization process, making the use of the furrow opener 4 more flexible and convenient.

[0040] It should be noted that the front end and the rear end are based on the forward direction of the furrow opener 4. Figure 6 and Figure 7In the embodiment, the furrow opener 4 moves forward from right to left, wherein the furrow opener 411 is on the left side of the furrow opener 4, and the soil dividing portion 412 is on the right side of the furrow opener 4. During the movement, the furrow opener 411 is at the front end of the furrow opener 4, and preferentially contacts the soil to achieve the soil breaking effect. After the soil passes through the furrow opener 411, it is gradually separated to both sides under the action of the disc 41, and a gully of a certain width can be formed after passing through the soil dividing portion 412. The furrow opener 4 swings to the front end, which means that the furrow opener 4 swings to the leftmost side, that is, Figure 6 As shown, the furrow opener 4 swings to the rear end, which means that the furrow opener 4 swings to the far right, that is, Figure 7 shown.

[0041] like Figures 3 to 5 As shown, the furrow opener 4 in this embodiment is composed of two discs 41, and part of the edges of the two discs 41 are against each other to form a furrow opening portion 411, and the furrow opening portion 411 is located at the front end of the furrow opener 4. In the radial direction of the disc 41, from the furrow opening portion 411 to the other side of the disc 41, the distance between the two discs 41 gradually increases, and then a soil dividing portion 412 is formed at the edge of the disc 41, and the soil dividing portion 412 is located at the rear end of the furrow opener 4, and a fertilizer pipe 42 extends between the two discs 41, and the inlet of the fertilizer pipe 42 is connected to the storage barrel on the frame 1, and the outlet of the fertilizer pipe 42 is aligned with the separated portion of the edges of the two discs 41.

[0042] During the fertilization process, the furrow opener 4 can be extended into the soil by controlling the frame 1 to rise and fall, and then the position of the furrow opener 4 can be adjusted according to the hardness of the soil. The no-till seeder drives the frame 1 forward, and the furrow opening part 411 of the furrow opener 4 breaks the soil during the movement. After breaking the soil, the soil is gradually separated to both sides along the disc 41, and a gully of a certain width can be formed after passing through the soil dividing part 412. At the same time, the fertilizer in the storage barrel is put into the gully along the fertilizer pipe 42, thereby realizing the fertilization operation.

[0043] like Figures 2 to 5As shown, in this embodiment, the furrow opener 4 is provided with a connecting plate 43 for connecting to the support shaft 2, and an elastic member 44 is distributed on the outer surface of the support shaft 2. The connecting plate 43 has a connecting end 431 fixedly connected to the support shaft 2, and the elastic member 44 is confined between the connecting end 431 and the support shaft 2, and the elastic member 44 can form a buffer between the connecting end 431 and the support shaft 2, which helps to reduce the impact force between the connecting end 431 and the support shaft 2, reduce the possibility of damage to the connecting end 431 and the support shaft 2, and help to improve the service life of the connecting end 431 and the support shaft 2; in addition, when the elastic member 44 is clamped between the connecting end 431 and the support shaft 2, the elastic member 44 is squeezed and deformed, so that the elastic member 44 can be fully filled between the connecting end 431 and the support shaft 2, so that the connection between the connecting end 431 and the support shaft 2 is more stable and reliable, and the possibility of shaking between the connecting end 431 and the support shaft 2 is reduced, which helps to improve the connection stability between the support shaft 2 and the furrow opener.

[0044] The support shaft 2 described in this embodiment is a square tube, and the outer peripheral side of the support shaft 2 is square. There are four elastic members 44 in total, and the four elastic members 44 are respectively located on the four sides of the square tube. The connecting end 431 of the connecting plate 43 is sleeved on the outer surface of the support shaft 2. The connecting end 431 will squeeze the elastic member 44 during the locking process, so that the elastic member 44 will produce elastic deformation. The connecting end 431 is fixed to the support shaft 2 by squeezing the elastic member 44. During the fertilization process, the furrow opener 4 will be subject to the resistance of the soil, so a torque will be generated between the connecting end 431 and the support shaft 2. The elastic member 44 can reduce the torque exerted on the support shaft 2 and reduce the possibility of damage to the support shaft 2.

[0045] Of course, it is understandable that in other embodiments, the elastic member 44 can be a sleeve, and the elastic member 44 has a through hole for the support shaft 2 to pass through, and the structure of the through hole matches the outer peripheral side of the support shaft 2, and the elastic member 44 is sleeved on the outer peripheral side of the support shaft 2.

[0046] Embodiment 2:

[0047] This embodiment also shows a no-till seeder, including a frame 1, on which a sowing mechanism and a fertilizing mechanism are provided, wherein the fertilizing mechanism includes a storage barrel for storing fertilizer and a fertilizing device for fertilizing, and the fertilizing device adopts the adjustable fertilizing device described in Example 1.

[0048] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. An adjustable fertilizing device for a no-till seeding machine, comprising a frame, a support shaft rotatably connected to the frame, and a furrow opener fixed to the support shaft, the furrow opener comprising two discs and a fertilizing tube, the edges of the two discs being fitted together to form a furrow opening portion, the fertilizing tube being located between the two discs, characterized in that: The frame is connected with an adjusting device, the output end of which is rotatably connected to the support shaft. The adjusting device drives the furrow opener to swing around the axis of the support shaft through the support shaft to achieve position adjustment of the furrow opening part.

2. The adjustable fertilization device of a no-tillage seeder according to claim 1, characterized in that: The adjusting device comprises a mounting seat and an adjuster, wherein the mounting seat is connected to the frame, a transmission rod is fixedly connected to the support shaft, and the transmission rod is rotationally connected to the output end of the adjuster.

3. The adjustable fertilization device of a no-tillage seeder according to claim 2, characterized in that: The regulator includes a telescopic rod and an adjusting hand wheel. The telescopic rod includes an inner rod and an outer rod that slide against each other. The adjusting hand wheel is rotatably arranged at the top end of the telescopic rod. The top end of the inner rod is transmission-connected to the adjusting hand wheel. The bottom end of the inner rod is rotationally connected to the transmission rod. The rotation of the adjusting hand wheel drives the inner rod to telescope relative to the outer rod.

4. The adjustable fertilization device of a no-tillage seeder according to claim 3, characterized in that: The frame is provided with a support seat, the mounting seat is fixed to the outer surface of the outer rod, and the mounting seat is rotatably connected with the support seat.

5. The adjustable fertilization device of a no-tillage seeder according to claim 3, characterized in that: The adjusting hand wheel is connected to a transmission screw, the top of the inner rod is provided with a through hole for the transmission screw to extend into, a nut is fixed to the inner wall of the through hole, the transmission screw and the nut thread cooperate, the inner rod and the outer rod are anti-rotationally cooperated, and the adjusting hand wheel drives the transmission screw to rotate so that the inner rod slides relative to the outer rod.

6. The adjustable fertilization device of a no-tillage seeder according to claim 1, characterized in that: The furrow opener is provided with a connecting plate for connecting to a supporting shaft, elastic parts are distributed on the outer surface of the supporting shaft, the connecting plate has a connecting end fixedly connected to the supporting shaft, and the elastic part is confined between the connecting end and the supporting shaft.

7. The adjustable fertilization device of a no-tillage seeder according to claim 6, characterized in that: The support shaft is a square tube, and four elastic parts are distributed on the outer surface of the support shaft. The four elastic parts are respectively located on the four sides of the square tube, and the connecting end cooperates with the support shaft to clamp the elastic parts.

8. The adjustable fertilization device of a no-tillage seeder according to claim 6, characterized in that: The elastic member has a through hole for the support shaft to pass through, the structure of the through hole matches the outer peripheral side of the support shaft, and the elastic member is sleeved on the outer peripheral side of the support shaft.

9. The adjustable fertilization device of a no-tillage seeder according to claim 1, characterized in that: The frame is provided with a connecting seat, the connecting seat is provided with an axis hole for the support shaft to pass through, and the support shaft is rotatably connected with the connecting seat.

10. A no-tillage seeder, comprising a frame, on which a sowing mechanism and a fertilizing mechanism are arranged, wherein the fertilizing mechanism comprises a storage barrel for storing fertilizer and a fertilizing device for fertilizing, characterized in that: The fertilizing device adopts the adjustable fertilizing device as described in any one of claims 1 to 9.

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