Riding type tea field ploughing and fertilizing machine

Abstract

The application discloses a riding type tea garden ploughing and fertilizing machine, which comprises a walking part, a hanging part is hung on the side of the walking part away from the direction of movement; the hanging part comprises a cross beam, a fertilizing unit and rotary ploughing units symmetrically arranged on the two sides of the cross beam; the fertilizing unit comprises a fertilizer box, a fertilizing pipe and a fertilizing wheel set matched with the fertilizer box, one end of the fertilizing pipe is connected with the discharging end of the fertilizing wheel set, and the other end is swingingly arranged on the side of the rotary ploughing unit close to tea bushes; the fertilizing wheel set comprises a driving wheel and an adjusting wheel in sliding cooperation with the driving wheel to adjust the fertilizing amount; through cooperation of the swing of the fertilizing pipe, the linkage of the pull rope and the adjusting wheel, the differentiated and accurate operation of large amount of fertilization on the two sides of the tea bushes and small amount of fertilization in the center can be realized, the nutrient requirement of the dense root absorption area on the outside can be met, and the flexibility of caring and soil improvement for seedlings and root necks in the center of the bushes can be realized.

Description

Technical Field

[0001] This invention relates to the field of tea garden fertilization machinery technology, and in particular to a ride-on tea garden tillage and fertilization machine. Background Technology

[0002] Tea trees are mostly planted in clumps, and as they age, their root systems exhibit significant spatial heterogeneity. The most absorbent fibrous roots and fine roots are concentrated in the soil layers on both sides of the outer edge of the canopy's vertical projection (the "drip line"), while the central area of ​​the clump consists mostly of robust old roots and root collars with weaker absorption capacity. Simultaneously, the root systems of seedlings from tea garden renewal or natural seed germination are also concentrated in the shallow soil layer in the center of the clump. Therefore, a scientifically sound fertilization strategy should be: apply sufficient fertilizer to the densely absorbing root areas on both sides of the tea tree to meet the growth needs of mature tea trees; while controlling the amount of fertilizer applied to the central area of ​​the clump, both to moderately improve the soil and promote seedling root development, and to avoid root burn and seedling damage caused by excessively high local fertilizer concentrations.

[0003] Traditional tea garden fertilization relies heavily on manual labor. While it allows for differentiated application of fertilizers by broadcasting or hole application depending on the area of ​​the tea bush, it is labor-intensive, inefficient, and unsuitable for the management needs of large-scale tea gardens. In recent years, ride-on tea garden management machinery has been gradually adopted, but its fertilization function mostly uses fixed trenching or rotary tillage methods, which can only fertilize between rows or on the sides of the tea bushes, failing to deliver fertilizer to the central area of ​​the tea bush. This results in the soil in that area not receiving sufficient nutrients for a long time, becoming compacted and infertile, which is detrimental to seedling growth and the improvement of the rhizosphere microecology. If a uniform high fertilization rate is applied, the central area of ​​the bush is easily damaged by excessive fertilization, affecting seedlings and old rootstocks; if the fertilization rate is reduced, the outer areas with dense absorbing roots will suffer from insufficient nutrients, making it difficult to achieve both goals simultaneously. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a ride-on tea garden tillage and fertilization machine, which solves the problem that existing tea garden fertilization machinery cannot simultaneously perform rotary tillage and fertilization on both sides of the tea bushes and reduce the amount of fertilizer applied to the central area of ​​the bush.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a ride-on tea garden tillage and fertilization machine, comprising a walking part, wherein a connecting part is attached to the side of the walking part away from the direction of travel; The attachment part includes a crossbeam, a fertilization unit, and rotary tillage units symmetrically arranged on both sides of the crossbeam. The fertilization unit includes a fertilizer box, a fertilizer pipe, and a fertilizer wheel assembly that works in conjunction with the fertilizer box. One end of the fertilizer pipe is connected to the discharge end of the fertilizer wheel assembly, and the other end is oscillatingly positioned on the side of the rotary tillage unit near the tea bushes. The fertilizer wheel assembly includes a drive wheel and an adjustment wheel that slides in conjunction with the drive wheel to adjust the amount of fertilizer applied. The fertilizer pipe is connected to a pull rope, and the other end of the pull rope is connected to an adjusting wheel. When the fertilizer pipe swings towards the tea bushes, it drives the adjusting wheel to adjust its position relative to the driving wheel to reduce the amount of fertilizer and tilt and throw the fertilizer into the middle area of ​​the tea bushes. When the fertilizer pipe swings towards the rotary tillage unit, it drives the adjusting wheel to adjust its position relative to the driving wheel to increase the amount of fertilizer and throw the fertilizer into the soil after rotary tillage.

[0006] In the above scheme, preferably, the rotary tillage unit includes a lifting push rod and a rotary tillage part, wherein the fixed end of the lifting push rod is connected to the crossbeam, and the push rod end is connected to the rotary tillage part.

[0007] In the above scheme, preferably, the push rod end of the lifting push rod is provided with a fixed seat, and a drive push rod is arranged horizontally on the fixed seat, and the push rod end of the drive push rod is connected to the end of the fertilizer pipe.

[0008] In the above scheme, preferably, the fixed base is provided with a support sleeve that cooperates with the fertilizer pipe body, the fertilizer pipe passes through the support sleeve, and swings left and right with the support sleeve as the swinging part to adjust the spraying angle of the fertilizer pipe.

[0009] In the above scheme, preferably, the drive push rod is provided with a drive sleeve that cooperates with the fertilizer pipe, one end of the pull rope is connected to the drive sleeve, and the other end passes through the fixed seat and is connected to the adjusting wheel.

[0010] In the above scheme, preferably, the drive wheel is rotatably positioned below the fertilizer tank, and the drive wheel is circumferentially provided with a plurality of fertilizer troughs that cooperate with the fertilizer inside the fertilizer tank. One side of the fertilizer trough is open, and the adjusting wheel is provided with a plurality of adjusting claws that slide in cooperation with the open side of the fertilizer trough. The adjusting claws slide relative to the fertilizer trough to adjust the capacity of the fertilizer trough.

[0011] In the above scheme, preferably, the adjusting wheel is provided with an adjusting pawl on one side and a shift fork groove on the other side; The crossbeam is provided with a fork that mates with the fork groove. The fork is rotatably mounted on the crossbeam. One end of the fork is engaged with the fork groove via a lever, and the other end is connected to the pull rope.

[0012] In the above scheme, preferably, the fertilizer pipe is connected to a pneumatic unit, the pneumatic unit includes a fan and a first air duct, the first air duct is connected to the lower end of the fertilizer pipe, the fertilizer pipe is provided with a reducing pipe, the first air duct is connected to the side of the reducing pipe away from the fertilizer box, and the angle between the axes of the fertilizer pipe and the first air duct is an acute angle.

[0013] In the above scheme, preferably, the pneumatic unit includes a three-way valve, one end of which is connected to a fan, and the other end is provided with a first outlet connected to a first air duct and a second outlet connected to a second air duct. The outlet end of the second air duct is fixed to the push rod end of the lifting push rod. A rebound plate is provided on the outer wall of the fertilizer pipe facing the center of the tea bush, and the opening of the second air pipe faces the rebound plate, so that the wind drives the fertilizer at the pipe opening to be shot towards the rebound plate and then bounces back, realizing the dispersion and spreading of fertilizer on the soil surface after rotary tillage.

[0014] In the above scheme, preferably, the tee is rotatably provided with a valve plate that cooperates with the first outlet or the second outlet to adjust the relative air volume between them. The valve plate is connected to a swing rod, the swing rod is connected to a pull rope, and a return spring is provided between the swing rod and the tee.

[0015] The beneficial effects of this invention are as follows: By coordinating the swinging of the fertilizer pipe, the linkage of the pull rope, and the adjustment wheel, this invention achieves differentiated and precise operations, applying a large amount of fertilizer to both sides of the tea bush and a small amount of fertilizer to the center. This satisfies the nutrient needs of the densely rooted area on the outer side while providing gentle protection and soil improvement for the seedlings and root collar in the center of the bush. The rotary tillage unit and the fertilizer pipe are integrated into the same attachment point, allowing for rotary tillage on both sides, fertilization on both sides, and reduced fertilization in the center in a single operation, significantly improving the efficiency of tea garden management.

[0016] The fertilizer applicator, via a support sleeve, forms a lever-type swing structure. A pull rope directly actuates the adjusting wheel to change the effective volume of the fertilizer trough, providing rapid response and precise adjustment. The pneumatic unit uses high-speed airflow to assist in fertilizer delivery and application. A narrow-diameter pipe generates negative pressure suction, and a sharp-angle jet accelerates the application, significantly expanding the fertilizer application area and uniformity. A dual-duct system with a linked valve plate allows for simultaneous adjustment of the airflow from the fertilizer applicator and the blowing intensity of the second duct onto the rebound plate, ensuring uniform fertilizer distribution on the soil surface after rotary tillage and improving fertilizer utilization. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0018] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the fertilization unit of the present invention.

[0020] Figure 4 This is a schematic diagram of the exploded structure of the fertilizer application wheel assembly of the present invention.

[0021] Figure 5 For the present invention Figure 1 Schematic diagram of the left-center view structure. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1-5 .

[0023] A ride-on tea garden tillage and fertilization machine includes a walking unit, which can be a wheeled or tracked chassis. A mounting part 1 is attached to the side of the walking unit away from the direction of travel. The mounting part 1 includes a crossbeam 101, a fertilization unit 2, and rotary tillage units 3 symmetrically arranged on both sides of the crossbeam 101. The rotary tillage units 3 on both sides correspond to the soil between the rows on both sides of the tea bushes. The fertilization unit 2 works in conjunction with the corresponding rotary tillage unit 3 to deliver fertilizer to the sides and central area of ​​the tea bushes. Figure 1 As shown.

[0024] The fertilization unit 2 includes a fertilizer box 201, a fertilizer pipe 202, and a fertilizer wheel assembly 21 that cooperates with the fertilizer box 201. The fertilizer box 201 is fixed above the crossbeam 101 and is used to store granular or powdered fertilizer. One end of the fertilizer pipe 202 is connected to the discharge end of the fertilizer wheel assembly 21, and the other end is swung and set on the side of the rotary tillage unit 3 near the tea bushes, so as to throw fertilizer into the soil on both sides of the tea bushes or the central area. The fertilizer wheel assembly 21 is set below the fertilizer box 201. The rotation of the fertilizer wheel assembly 21 can transport the fertilizer in the fertilizer box 201 to the fertilizer pipe 202.

[0025] The fertilizer applicator assembly 21 includes a drive wheel 22 and an adjusting wheel 23 that slides with the drive wheel 22 to adjust the amount of fertilizer applied. The drive wheel 22 is driven to rotate by a power source in the traveling mechanism or by an independent motor. In this embodiment, taking a motor drive as an example, the output shaft of the motor is connected to the central shaft of the drive wheel 22, thereby transmitting power to the drive wheel 22. When it rotates, it takes fertilizer from the fertilizer bin 201 and delivers it to the fertilizer application pipe 202. The adjusting wheel 23 can slide axially along the drive wheel 22, and the amount of fertilizer applied per application is adjusted by changing the relative position between the two. Figure 4 As shown.

[0026] like Figure 3 and Figure 4 As shown, the drive wheel 22 is rotatably positioned below the fertilizer tank 201. Several fertilizer troughs 25 are arranged around the circumference of the drive wheel 22, corresponding to the fertilizer inside the fertilizer tank 201. Fertilizer from the fertilizer tank 201 continuously falls into the fertilizer troughs 25 as the drive wheel 22 rotates. One side of the fertilizer trough 25 is open. The adjusting wheel 23 is equipped with several adjusting claws 26 that slide against the open side of the fertilizer trough 25. The adjusting claws 26 are inserted into the open side of the fertilizer trough 25. When the adjusting wheel 23 slides relative to the drive wheel 22, the adjusting claws 26 extend into or retract from the fertilizer trough 25, thereby changing the effective capacity of the fertilizer trough 25 and adjusting the amount of fertilizer applied.

[0027] The adjusting wheel 23 has an adjusting pawl 26 on one side and a shift fork groove 27 on the other side, such as... Figure 3 and Figure 4As shown. A fork 28 is provided on the crossbeam 101 to cooperate with the fork groove 27. A return spring is provided between the fork 28 and the crossbeam 101. The fork 28 is rotatably mounted on the crossbeam 101, with one end connected to the fork groove 27 via a lever 29, and the other end connected to a pull rope 24. The pull rope 24 pulls the fork 28 to rotate around the pivot, causing the lever 29 to slide within the fork groove 27, pushing the adjusting wheel 23 to move axially relative to the drive wheel 22, thus changing the relative position of the adjusting claw 26 and the fertilizer trough 25. Simultaneously, the fork groove 27 is an annular groove, and the lever 29 is vertically engaged within it, ensuring that the lever 29 remains within the fork groove 27 when the adjusting wheel 23 rotates, without interfering with its rotation.

[0028] One end of the fertilizer pipe 202 is connected to the pull rope 24, and the other end of the pull rope 24 is connected to the end of the shift fork 28 away from the shift lever 29. When the fertilizer pipe 202 swings towards the tea bushes, the pull rope 24 drives the adjusting wheel 23 to move relative to the driving wheel 22 to the reducing position, that is, towards... Figure 4 As shown, sliding to the right reduces the amount of fertilizer applied and throws the fertilizer at an angle into the central area of ​​the tea bushes; when the fertilizer pipe 202 swings towards the rotary tillage unit 3, the adjusting wheel 23 is moved to the incremental position via the pull rope 24, that is, towards... Figure 4 Sliding the fertilizer tube 202 to the left increases the capacity of the fertilizer trough 25, thereby increasing the amount of fertilizer applied and spreading the fertilizer into the soil after rotary tillage by the rotary tillage unit 3. Thus, the oscillating motion of the fertilizer tube 202 is linked to the fertilizer application rate adjustment, enabling variable fertilization.

[0029] The rotary tillage unit 3 includes a lifting push rod 301 and a rotary tillage section 302. The fixed end of the lifting push rod 301 is connected to the crossbeam 101, and the push rod end is connected to the rotary tillage section 302. By extending and retracting the lifting push rod 301, the soil penetration depth of the rotary tillage section 302 can be adjusted to adapt to different tea garden soil conditions and tillage requirements.

[0030] A fixed seat 303 is provided on the pusher end of the lifting push rod 301. The pusher end is vertically guided on the lifting push rod 301. A drive push rod 304 is horizontally arranged on the fixed seat 303. The pusher end of the drive push rod 304 is connected to the end of the fertilizer pipe 202. When the drive push rod 304 extends or retracts, it can push the fertilizer pipe 202 to swing around the support point. A support sleeve 305 is also provided on the fixed seat 303 to cooperate with the body of the fertilizer pipe 202. The fertilizer pipe 202 passes through the support sleeve 305 and swings left and right with the support sleeve 305 as the swinging movable part. The support sleeve 305 constitutes the swing fulcrum of the fertilizer pipe 202. When the drive push rod 304 pushes the end of the fertilizer pipe 202 to swing, the spraying angle of the fertilizer pipe 202 is adjusted, realizing directional fertilization to the soil in the center or on both sides of the tea bush.

[0031] The drive push rod 304 is equipped with a drive sleeve 306 that mates with the fertilizer pipe 202. The drive sleeve 306 is an open ring, with its side near the tea bush in an open state. The side wall of the fertilizer pipe 202 abuts against the inner wall of the drive sleeve 306, thereby driving the drive sleeve 306 along... Figure 2 When pushed to the right, the end of the fertilizer pipe 202 swings around the support sleeve 305, achieving an angle change. Preferably, the portion of the fertilizer pipe 202 located at the support sleeve 305 is an elastic corrugated section, thus achieving elastic restoring capability and angle change capability after being pushed out. The portion below the corrugated section is a rigid straight pipe section. When the drive sleeve 306 pushes the wall of this straight pipe section in one direction, the outlet angle of the straight pipe section changes, forming an inclined spray state. Here, the drive sleeve 306 can also be replaced by a single-sided abutment block, the main purpose of which is to achieve the angle change of the straight pipe section after being subjected to force. One end of the pull rope 24 is connected to the drive sleeve 306, and the other end passes through the fixed seat 303 and is connected to the shift fork 28, realizing a connection with the adjusting wheel 23. When the drive push rod 304 is activated, the drive sleeve 306 moves accordingly and pulls or releases the pull rope 24. The pull rope 24 transmits displacement to the adjusting wheel 23 through the guide hole on the fixed seat 303, thereby completing the synchronous adjustment of the fertilizer application amount and the swing angle.

[0032] like Figure 1 As shown, the fertilizer application pipe 202 is connected to a pneumatic unit 4, which includes a fan 401 and a first air duct 402. The first air duct 402 is connected to the lower end of the fertilizer application pipe 202, and a reducing pipe 403 is provided on the fertilizer application pipe 202. The first air duct 402 and the reducing pipe 403 are connected through each other on the side away from the fertilizer box 201. The angle α between the axes of the fertilizer application pipe 202 and the first air duct 402 is an acute angle. The high-speed airflow generated by the fan 401 enters the fertilizer application pipe 202 through the first air duct 402, forming a Venturi effect at the reducing pipe 403, generating negative pressure to facilitate fertilizer absorption and acceleration. The acute angle design makes the airflow generate an oblique pushing force on the fertilizer particles, which facilitates the tilting and throwing of fertilizer to a more distant central area of ​​the tea bushes.

[0033] The pneumatic unit 4 also includes a tee 404, one end of which is connected to the blower 401, and the other end is provided with a first outlet 41 and a second outlet 42. The first outlet 41 is connected to the first air duct 402, and the second outlet 42 is connected to the second air duct 405. The outlet end of the second air duct 405 is fixed to the push rod end of the lifting push rod 301. A rebound plate 5 is provided on the outer wall of the fertilizer pipe 202 facing the center of the tea bush, and the opening of the second air duct 405 faces the rebound plate 5. When the fertilizer pipe 202 swings towards the rotary tillage unit 3 to apply a large amount of fertilizer, the airflow blows through the second air duct 405 towards the rebound plate 5, dispersing the falling fertilizer and making it more evenly dispersed and scattered on the soil surface after rotary tillage in the rotary tillage unit 3, thus improving the uniformity of coverage.

[0034] A valve plate 6 is rotatably mounted on the tee 404, which can adjust the relative airflow distribution between the first outlet 41 and the second outlet 42. A swing rod 7 is connected to the valve plate 6, and the swing rod 7 is connected to the pull rope 24. A return spring is provided between the swing rod 7 and the tee 404. When the pull rope 24 moves with the swaying of the fertilizer pipe 202, it synchronously drives the swing rod 7 to rotate, driving the valve plate 6 to change position, thereby adjusting the airflow ratio between the first air pipe 402 and the second air pipe 405, so that the pneumatic assistance matches the fertilization operation state. That is, when the fertilizer pipe 202 swings towards the center of the tea bush, the pull rope 24 synchronously pulls the fork 28 and the swing rod 7. The fork 28 slides the adjusting wheel 23 towards the drive wheel 22, reducing the capacity of the fertilizer trough 25 and reducing the amount of fertilizer applied to the central root area of ​​the tea bush. At the same time, the swing rod 7, after being pulled, drives the valve plate 6 to swing towards the pipe section of the second outlet 42, reducing... The airflow from the second outlet 42 is increased, and the airflow from the first outlet 41 is increased, thereby increasing the wind speed of the first air duct 402 and improving the projection speed and effect on the central area of ​​the tea bushes. Conversely, when the fertilizer pipe 202 swings away from the center of the tea bushes, the pull rope 24 releases the tension on the swing arm 7 and the fork 28, thereby increasing the amount of fertilizer applied. At the same time, the wind force of the second air duct 405 is increased, and the wind force of the first air duct 402 is reduced. After the wind force of the second air duct 405 increases, the increased amount of fertilizer at the outlet of the fertilizer pipe 202 is blown, so that the fertilizer collides with the baffle 5 and is evenly applied to the area near the rotary tillage.

[0035] The following is a method for using a ride-on tea garden tillage and fertilization machine: Before operation, attach the mounting part 1 to the side of the traveling part away from the direction of travel. Add sufficient granular or powdered fertilizer to the fertilizer bin 201. Start the blower 401 to put the pneumatic unit 4 into standby mode.

[0036] The walking unit moves along the rows of tea gardens, and adjusts the extension and retraction of the lifting push rod 301 so that the rotary tillage unit 302 on both sides reaches the preset soil depth, and performs rotary tillage operation on the soil on both sides of the tea bushes.

[0037] During the operation, variable fertilization is carried out according to the needs of different areas of the tea bushes. The specific operation and principle are as follows: When it is necessary to apply a large amount of fertilizer to the soil on both sides of the tea bushes after rotary tillage, the push rod end of the drive push rod 304 retracts, causing the drive sleeve 306 to move away from the tea bushes. The drive sleeve 306 pushes the straight section of the fertilizer pipe 202 to swing around the support sleeve 305, so that the outlet of the fertilizer pipe 202 faces the rotary tillage unit 3. At this time, the pull rope 24 is released or retracted, relieving the tension on the shift fork 28 and the swing rod 7.

[0038] The fork 28 rotates under the action of the restoring force, and slides in the fork groove 27 via the lever 29, pushing the adjusting wheel 23 to move axially relative to the drive wheel 22. This causes the adjusting claw 26 to move towards the open side of the fertilizer trough 25, increasing the effective capacity of the fertilizer trough 25 and thus increasing the amount of fertilizer applied. At the same time, the swing arm 7 rotates under the action of the restoring spring, causing the valve plate 6 to swing, reducing the air volume at the first outlet 41 and increasing the air volume at the second outlet 42. After the fertilizer is discharged from the outlet of the fertilizer pipe 202, it falls near the rebound plate 5. The high-speed airflow from the second air pipe 405 disperses the fertilizer, causing it to collide with the rebound plate 5 and form a uniformly dispersed spread on the surface of the rotary-tilled soil.

[0039] When it is necessary to reduce the amount of fertilizer applied to the central area of ​​the tea bush, the push rod end of the drive push rod 304 extends, driving the drive sleeve 306 to move closer to the tea bush; the drive sleeve 306 pushes the straight section of the fertilizer pipe 202 to swing in the opposite direction around the support sleeve 305, so that the outlet of the fertilizer pipe 202 faces the center of the tea bush, forming an inclined spray angle. At this time, the pull rope 24 is tightened, and the shift fork 28 and the swing rod 7 are pulled simultaneously.

[0040] When the fork 28 is pulled, it rotates around its axis, pushing the adjusting wheel 23 to slide axially relative to the drive wheel 22 via the lever 29. This causes the adjusting claw 26 to move towards the closed section of the fertilizer trough 25, reducing the effective capacity of the fertilizer trough 25 and thus reducing the amount of fertilizer applied. Simultaneously, the swing arm 7 is pulled by the pull rope 24, overcoming the elasticity of the return spring and causing the valve plate 6 to swing, increasing the airflow at the first outlet 41 and decreasing the airflow at the second outlet 42. After the airflow speed in the first air duct 402 increases, the high-speed airflow enters the fertilizer duct 202 through the narrowing pipe 403. A negative pressure is generated at the narrowing pipe 403 to accelerate fertilizer intake, and the fertilizer is then projected at an acute angle to the central area of ​​the tea bushes, completing a small amount of precise fertilization in the center of the bushes.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ride-on tea garden tillage and fertilization machine, comprising a walking unit, characterized in that: The walking part is attached to the side away from the direction of travel (1). The attachment part (1) includes a crossbeam (101), a fertilization unit (2), and rotary tillage units (3) symmetrically arranged on both sides of the crossbeam (101). The fertilization unit (2) includes a fertilizer box (201), a fertilizer pipe (202), and a fertilizer wheel assembly (21) that cooperates with the fertilizer box (201). One end of the fertilizer pipe (202) is connected to the discharge end of the fertilizer wheel assembly (21), and the other end is oscillatingly set on the side of the rotary tillage unit (3) near the tea bushes. The fertilizer wheel assembly (21) includes a drive wheel (22) and an adjustment wheel (23) that slides with the drive wheel (22) to adjust the amount of fertilizer. The fertilizer application tube (202) is connected to a pull rope (24), and the other end of the pull rope (24) is connected to the adjusting wheel (23). When the fertilizer application tube (202) swings towards the tea bush, it drives the adjusting wheel (23) to adjust the position relative to the driving wheel (22) to reduce the amount of fertilizer and tilt the fertilizer to the middle area of ​​the tea bush. When the fertilizer application tube (202) swings towards the rotary tillage unit (3), it drives the adjusting wheel (23) to adjust the position relative to the driving wheel (22) to increase the amount of fertilizer and sprinkle the fertilizer into the soil after rotary tillage.

2. The ride-on tea garden tillage and fertilization machine according to claim 1, characterized in that: The rotary tillage unit (3) includes a lifting push rod (301) and a rotary tillage part (302). The fixed end of the lifting push rod (301) is connected to the crossbeam (101), and the push rod end is connected to the rotary tillage part (302).

3. The ride-on tea garden tillage and fertilization machine according to claim 2, characterized in that: The lifting push rod (301) has a fixed seat (303) on its push rod end, and a driving push rod (304) is arranged horizontally on the fixed seat (303). The push rod end of the driving push rod (304) is connected to the end of the fertilizer pipe (202).

4. A ride-on tea garden tillage and fertilization machine according to claim 3, characterized in that: The fixed base (303) is provided with a support sleeve (305) that cooperates with the body of the fertilizer pipe (202). The fertilizer pipe (202) is installed through the support sleeve (305) and swings left and right with the support sleeve (305) as the swinging part to adjust the spraying angle of the fertilizer pipe (202).

5. A ride-on tea garden tillage and fertilization machine according to claim 4, characterized in that: The drive push rod (304) is provided with a drive sleeve (306) that cooperates with the fertilizer pipe (202). One end of the pull rope (24) is connected to the drive sleeve (306), and the other end passes through the fixed seat (303) and is connected to the adjusting wheel (23).

6. A ride-on tea garden tillage and fertilization machine according to claim 1, characterized in that: The drive wheel (22) is rotatably positioned below the fertilizer box (201). The drive wheel (22) is provided with several fertilizer troughs (25) around its circumference that cooperate with the fertilizer inside the fertilizer box (201). One side of the fertilizer trough (25) is open. The adjusting wheel (23) is provided with several adjusting claws (26) that slide and cooperate with the open side of the fertilizer trough (25). The adjusting claws (26) slide relative to the fertilizer trough (25) to adjust the capacity of the fertilizer trough (25).

7. A ride-on tea garden tillage and fertilization machine according to claim 6, characterized in that: The adjusting wheel (23) has an adjusting claw (26) on one side and a shift fork groove (27) on the other side. The crossbeam (101) is provided with a fork (28) that cooperates with the fork groove (27). The fork (28) is rotatably mounted on the crossbeam (101). One end of the fork (28) is engaged with the fork groove (27) through a lever (29), and the other end is connected to the pull rope (24).

8. A ride-on tea garden tillage and fertilization machine according to claim 2, characterized in that: The fertilizer application pipe (202) is connected to a pneumatic unit (4). The pneumatic unit (4) includes a fan (401) and a first air duct (402). The first air duct (402) is connected to the lower end of the fertilizer application pipe (202). The fertilizer application pipe (202) is provided with a reduced diameter pipe (403). The first air duct (402) and the reduced diameter pipe (403) are connected to the side away from the fertilizer box (201). The angle between the axes of the fertilizer application pipe (202) and the first air duct (402) is an acute angle.

9. A ride-on tea garden tillage and fertilization machine according to claim 8, characterized in that: The pneumatic unit (4) includes a tee (404), one end of which is connected to the fan (401), and the other end is provided with a first outlet (41) connected to the first air duct (402) and a second outlet (42) connected to the second air duct (405). The outlet end of the second air duct (405) is fixed to the push rod end of the lifting push rod (301). The fertilizer pipe (202) has a rebound plate (5) on the outer wall facing the center of the tea bush. The opening of the second air pipe (405) faces the rebound plate (5), so that the wind drives the fertilizer at the pipe opening to be shot towards the rebound plate (5) and then rebounds, realizing the dispersion and spreading on the soil surface after rotary tillage in the rotary tillage unit (3).

10. A ride-on tea garden tillage and fertilization machine according to claim 9, characterized in that: The tee (404) is rotatably provided with a valve plate (6) that cooperates with the first outlet (41) or the second outlet (42) to adjust the relative air volume between them. The valve plate (6) is connected to a swing rod (7), which is connected to a pull rope (24). A return spring is provided between the swing rod (7) and the tee (404).

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