Tea garden preparation device based on adaptive adjustment of tea tree row spacing

Abstract

This invention relates to the field of tea garden land preparation technology, specifically to a tea garden land preparation device based on adaptive adjustment of tea tree row spacing. It includes a land preparation machine body, which comprises a frame, a rotary planer assembly located at the front of the frame, and a bulldozer component located at the rear of the frame. The rotary planer assembly includes a central rotary planer section and symmetrically arranged side rotary planer sections on both sides. The bulldozer component includes a bulldozer plate fixedly connected to the frame, with a guide plate inside the bulldozer plate. The guide plate and the concave portion of the bulldozer plate together form a central cavity for soil flow. This invention uses a distance sensor linked to a DC motor to adjust the deflection angle of the side rotary planer sections, adaptively adjusting the tea tree row spacing, improving operational adaptability and safety. Furthermore, the bulldozer plate and guide plate within the central cavity guide soil from the lower side of the slope to the higher side, actively redistributing the soil, maintaining row flatness, and providing a uniform soil foundation for the tea trees.

Description

Technical Field

[0001] This invention relates to the field of tea garden land preparation technology, and more specifically, to a tea garden land preparation device based on adaptive adjustment of tea tree row spacing. Background Technology

[0002] Nowadays, tea gardens are mostly concentrated in terraced or sloping environments. Every year in July and August, it is necessary to carry out tillage operations between the tea tree rows to meet the water retention needs of the tea garden. At this stage, the sloping areas are often dry and the soil is prone to hardening. Ordinary plows are not convenient to effectively turn over such dry soil and cannot meet the tillage quality standards required for water retention. Therefore, rotary planers, with their stronger soil breaking ability, can efficiently handle dry and hard soil and have become the core equipment for tea garden tillage in this scenario.

[0003] The rotary planer currently used in tea gardens mainly consists of a rotary planer wheel for turning the soil and a scraper for leveling the soil. The rotary planer wheel is responsible for breaking up and lifting the soil, while the scraper is usually installed behind the bend of the rotary planer wheel to smooth the soil that has been turned up, reducing the undulation of the soil surface after tilling.

[0004] However, when operating in sloping areas, the actual spacing between adjacent tea trees is prone to irregular deviations due to the influence of the hillside terrain, making it difficult for the rotary planer's tillage range to match the row spacing. When the rotary planer wheel tills, it lifts a large amount of soil, which, due to its own weight, slides to the lower side. When the scraper follows the rotary planer to level the soil, the slid-off soil will cause the leveled land to have thicker soil in lower areas and thinner soil in higher areas. The uneven soil surface is prone to producing a large number of gaps or small mounds, increasing the area for water evaporation and directly weakening the water retention effect of tea garden tillage during the dry season. In view of this, there is an urgent need for a tea garden land preparation device based on adaptive adjustment of tea tree row spacing to solve the above problems. Summary of the Invention

[0005] This invention provides a tea garden land preparation device based on adaptive adjustment of tea tree row spacing. It uses an infrared ranging sensor to detect the distance between the side-section rotary planer and the tea tree ridging, and links a DC motor to adjust the deflection angle of the side-section rotary planer. The concave structure of the bulldozer plate and the guide plate form an inclined cavity to guide soil flow, allowing the side-section rotary planer to adaptively adapt to the irregular row spacing of tea trees on slopes. Simultaneously, it achieves directional transport and redistribution of soil from the lower side of the slope to the higher side, providing a uniform soil foundation and a regular inter-row terrain environment for subsequent tea tree growth during land preparation operations in sloping tea gardens. This solves the problems mentioned in the background art, namely:

[0006] When rotary planers are used on slopes in tea gardens, the irregular spacing of tea tree rows makes it difficult to match the tillage area. In addition, the soil lifted by the rotary planer slides to the lower side, resulting in uneven soil thickness and small mounds after the scraper is leveled, which weakens the water retention effect of tillage in the dry season.

[0007] To achieve the above objectives, the tea garden land preparation device includes a land preparation machine body, which consists of a frame, a rotary planer assembly located at the front of the frame, and a bulldozer component located at the rear of the frame. The rotary planer assembly includes a central rotary planer section and symmetrically arranged side rotary planer sections on both sides. A main drive mechanism is provided on the top of the frame. Each of the two side rotary planer sections is equipped with a distance measuring sensor for detecting the distance between the side rotary planer section and the tea tree ridge. The deflection angle of the two side rotary planer sections is adjusted according to the detection signal of the distance measuring sensor.

[0008] The bulldozing component includes a bulldozing plate fixedly connected to the frame. The bulldozing plate has a concave structure in the middle and a guide plate is provided inside the bulldozing plate. The guide plate and the concave part of the bulldozing plate together form a central cavity for soil flow.

[0009] The cross-sectional area of ​​the opening of the central cavity on the higher side of the slope is larger than the cross-sectional area of ​​the opening on the lower side of the slope, so that the entire cavity of the central cavity is tilted towards the higher side.

[0010] In the above technical solution, the side rotary planer is equipped with a distance sensor, which can detect the distance to the tea tree ridging in real time and adjust the deflection angle accordingly. The central cavity formed by the concave structure of the bulldozer plate and the guide plate has a larger opening cross-sectional area on the higher side of the slope, and the entire cavity is tilted to the higher side, which can form a directional soil flow channel. Therefore, it can guide the soil that slides to the lower side due to its own weight after rotary planing, and transport it directionally to the higher side along the central cavity, reducing the excessive accumulation of soil on the lower side and providing a stable and uniform soil foundation for the subsequent growth of tea trees.

[0011] Based on this, support rods are fixedly connected to the outer sides of the two side rotary planers, and frame connecting rods are extended from both sides of the front end of the frame. The two support rods are movably connected to the ends of the frame connecting rods on the same side. A DC motor is fixedly installed at the ends of the two frame connecting rods. The output shaft of the DC motor is coaxially connected to the rotating shaft at the top of the support rod on the same side. The distance sensor is electrically connected to the DC motor.

[0012] The distance between the side rotary planer and the tea tree ridging is detected in real time by a distance measuring sensor, and the detection signal is transmitted to a DC motor. After receiving the signal, the DC motor runs, and its output shaft drives the coaxially connected support rod to rotate around the end of the frame connecting rod, thereby driving the side rotary planer to deflect synchronously, so as to realize the real-time adjustment of the distance between the side rotary planer and the tea tree ridging.

[0013] In another technical solution, the interior of the guide plate is a hollow structure, and an auxiliary rod is installed on the concave surface of the bulldozer plate. The auxiliary rod is a telescopic structure, and the other end of the auxiliary rod is connected to the bottom of the inner cavity of the guide plate.

[0014] Vibration pads are sealed to the bottom of the guide plate and the side near the inner wall of the bulldozer plate.

[0015] This technical solution utilizes the hollow design of the guide plate, along with a telescopic auxiliary rod installed in the recessed part of the bulldozer plate. This allows the auxiliary rod to adjust its length by telescoping, enabling the guide plate to sway flexibly inside the bulldozer plate. Simultaneously, the sealed vibration pads at the bottom of the guide plate and near the inner wall of the bulldozer plate prevent soil from leaking out from the gap between the guide plate and the bulldozer plate. By amplifying the swaying amplitude of the guide plate through its own elastic deformation, the solution reduces soil adhesion and retention on the surface of the guide plate, allowing the soil to flow more quickly towards the higher side of the slope along the inclined direction of the central cavity, ensuring the smoothness and efficiency of soil redistribution on the slope.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In this tea garden land preparation device based on adaptive adjustment of tea tree row spacing, a distance sensor detects the distance between the side rotary planer and the tea tree ridging, and transmits the detection signal to a DC motor. The DC motor drives the support rod of the side rotary planer to deflect relative to the frame connecting rod, thereby adjusting the deflection angle of the side rotary planer. This achieves real-time adaptive adjustment of the distance between the side rotary planer and the tea tree ridging, which can adapt to different specifications of tea tree row spacing. At the same time, it can reduce the damage to the tea tree roots caused by the side rotary planer touching the tea tree ridging, thus improving the adaptability and safety of land preparation operations.

[0018] 2. In this tea garden land preparation device based on adaptive adjustment of tea tree row spacing, a central cavity is formed by the concave part of the bulldozer plate and the inclined guide plate, and the cross-sectional area of ​​the opening of the central cavity near the high side of the slope is larger than that of the low side. When preparing the slope, the soil on the high side of the terrain is easy to slide naturally to the low side and accumulate to form a high slope. As the land preparation machine moves, the bulldozer plate will scrape the soil, allowing the high slope soil accumulated on the low side to enter the central cavity. Then the soil is transported along the inclined guide plate to the low end of the central cavity (i.e. the overall high side of the terrain), realizing the active redistribution of the slope soil, keeping the terrain between tea garden rows flat, and providing a uniform soil foundation for the subsequent growth of tea trees. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is an overall side view of the present invention;

[0021] Figure 3 This is a schematic diagram of the positional connection between the bulldozer component and the rotary planer wheel assembly of the present invention;

[0022] Figure 4 This is a diagram showing the working state of the land preparation machine body in inclined soil in this invention;

[0023] Figure 5This is a schematic diagram of the rotary planer's adjustable distance structure according to Embodiment 1 of the present invention;

[0024] Figure 6 This is a comparison diagram of the rotary projectile distance adjustment dimensions in Embodiment 1 of the present invention;

[0025] Figure 7 This is a schematic diagram of the soil redistribution structure of the bulldozer component in this invention;

[0026] Figure 8 This is a schematic diagram of the lead plate structure in this invention;

[0027] Figure 9 This is a front view of the bulldozer component in the present invention operating on a slope.

[0028] Figure 10 This is a side sectional view of the bulldozer component in this invention;

[0029] Figure 11 This is a system flowchart of the distance adjustment of the rotary planer driven by the distance measuring sensor in this invention.

[0030] The meanings of the labels in the diagram are as follows:

[0031] 1. Tillage machine body; 11. Frame; 12. Main drive mechanism; 13. Rotary planer wheel assembly; 14. Distance sensor; 15. Bulldozing components;

[0032] 131. Side rotary planer section; 132. Middle rotary planer section; 133. Frame connecting rod; 134. Support rod;

[0033] 20. Central cavity; 21. Bulldozer blade; 22. Guide plate; 23. Side blocking plate; 24. Extension shovel plate; 25. Vibration pad; 26. Auxiliary rod. Detailed Implementation

[0034] 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.

[0035] Currently, when rotary planers are used on slopes in tea gardens, the irregular row spacing of tea trees makes it difficult to match the tillage area. Furthermore, the soil lifted by the planer slides to the lower side, resulting in uneven soil thickness and small mounds after the scraper has leveled the soil. Therefore, this invention provides a tea garden land preparation device based on adaptive adjustment of tea tree row spacing:

[0036] Example 1: See Figures 1-4As shown, the tillage machine body 1 is composed of a frame 11, a rotary planer assembly 13 located at the front of the frame 11, and a bulldozer component 15 located at the rear of the frame 11. The rotary planer assembly 13 includes a central rotary planer section 132 and side rotary planer sections 131 symmetrically arranged on both sides thereon. A main drive mechanism 12 is provided on the top of the frame 11. Both side rotary planer sections 131 are equipped with distance measuring sensors 14 for detecting the distance between the side rotary planer sections 131 and the tea tree ridges. According to the detection signal of the distance measuring sensors 14, the deflection angle of the two side rotary planer sections 131 is adjusted to adapt to the irregular tea tree row spacing on the slope tea garden, and the overall tillage range is flexibly adjusted to meet different operation requirements.

[0037] The bulldozer 15 includes a bulldozer plate 21 fixedly connected to the frame 11. The middle part of the bulldozer plate 21 has a concave structure. A guide plate 22 is provided inside the bulldozer plate 21. The guide plate 22 and the concave part of the bulldozer plate 21 together form a central cavity 20 for soil flow, providing a directional flow channel for loosened soil after turning over.

[0038] The cross-sectional area of ​​the opening of the central cavity 20 on the higher side of the slope is larger than that on the lower side of the slope, so that the entire cavity of the central cavity 20 is tilted towards the higher side. This can guide the soil accumulated on the lower side of the slope to flow to the higher side, reduce the excessive accumulation of soil on the lower side, and actively promote the balanced distribution of soil on the slope.

[0039] Due to the undulating terrain of sloping tea gardens, the row spacing of tea trees (i.e., the distance between adjacent ridges) often varies irregularly. Therefore, the rotary planer assembly 13 is configured with a three-section structure to achieve adaptive adjustment to irregular row spacing. Specifically: see [link to relevant documentation]. Figure 5 As shown, in the rotary planer assembly 13, the middle rotary planer section 132 is driven by the main drive mechanism 12 (the attached figure shows that the main drive mechanism 12 transmits power through a belt, and the drive method of the middle rotary planer section 132 can be changed according to the actual use scenario). The middle rotary planer section 132 rotates at the front end of the frame 11, while the two side rotary planer sections 131 are driven by independent motors and are located at the side ends of the frame 11.

[0040] Support rods 134 are fixedly connected to the outer sides of the two side rotary planers 131 respectively. Frame connecting rods 133 are mounted on both sides of the front end of the frame 11. The support rods 134 are movably connected to the ends of the frame connecting rods 133 on the same side, so that the side rotary planers 131 can rotate relative to the ends of the frame connecting rods 133. DC motors are fixedly installed at the ends of the two frame connecting rods 133. The output shaft of the motor is coaxially connected to the rotating shaft at the top of the corresponding support rod 134. At the same time, the distance sensor 14 is electrically connected to the DC motor. When the distance sensor 14 detects the distance signal between the side rotary planer 131 and the tea tree ridging, the signal is transmitted to the DC motor, which drives the motor to run. The motor drives the support rods 134 to rotate through the rotating shaft, thereby adjusting the deflection angle of the side rotary planer 131 and realizing the real-time adjustment of the distance between the side rotary planer 131 and the tea tree ridging.

[0041] See Figure 6 As shown, when the two side rotary planer sections 131 rotate in opposite directions, the overall tillage range of the tillage machine body 1 expands accordingly (e.g., Figure 6 The spacing b in the figure represents the tillage range in the expanded state; when the two side rotary planers 131 rotate to be parallel with the middle rotary planer 132, the overall tillage range shrinks (e.g., Figure 6 (The spacing 'a' in the text represents the tillage range in the reduced state.) It should be noted that since the tea trees planted on the slope will not have excessively large row spacing, the tillage machine can adaptively adjust the tillage range on the slope by adjusting the rotation state of the side rotary planer 131.

[0042] Based on the electrical connection between the ranging sensor 14 and the DC motor, specifically, the ranging sensor 14 employs infrared sensing technology. As is well known to those skilled in the art, it mainly consists of an infrared emitting tube, an infrared receiving tube, a signal filtering circuit, and a signal output interface. Figure 11 As shown, the connection between the ranging sensor 14 and the DC motor needs to be realized through a complete link from signal acquisition to signal processing. First, the infrared emitting tube continuously emits infrared beams of a specific wavelength towards the tea tree ridging direction outside the side section rotary planer 131. When the beam irradiates the tea tree ridging surface, part of the light is reflected back to the infrared receiving tube. The receiving tube converts the received reflected light signal into a weak electrical signal. This electrical signal is processed by the signal filtering circuit and environmental interference signals are filtered out to obtain a pure electrical signal that is only related to the distance between the ranging sensor 14 and the tea tree ridging.

[0043] Subsequently, the electrical signal is transmitted to the signal processing terminal of the equipment. The signal processing terminal sets a safe distance between the side rotary planer 131 and the ridging area according to a preset distance threshold. It then parses the distance signal into specific motor control commands, including the rotation direction and angle of the DC motor (e.g., 5° rotation if the distance is too close, 3° rotation if the distance is too far), and the rotation speed. These commands are output to the DC motor drive module in the form of a PWM signal. After receiving the PWM control signal, the drive module amplifies the low-power electrical signal output by the signal processing unit into a high-power power signal that can drive the DC motor. At the same time, it adjusts the polarity of the DC motor's power supply according to the control commands to achieve forward or reverse rotation of the DC motor. Finally, the DC motor operates under the drive of the power signal, driving the support rod 134 to rotate through the coaxially connected shaft, thus adjusting the deflection angle of the side rotary planer 131 and keeping the distance between the side rotary planer 131 and the tea tree ridging area within the preset range.

[0044] See Figure 7 and Figure 8 As shown, the guide plate 22 is arranged at an angle in space. Taking its surface as a reference, the four top corners are marked as points c, d, e, and f. When the tillage machine 1 turns over the soil on the slope, points c and d face the lower side, and points e and f face the higher side. The concave structure of the guide plate 22 and the bulldozing plate 21 together form a central cavity 20. In this state, the soil turned over on the lower side of the slope will be transported along the inclined direction inside the central cavity 20 to the higher side of the slope where points e and f are located, reducing the excessive accumulation of soil on the lower side of the slope, realizing the directional flow and redistribution of soil between the rows of tea gardens, and ensuring uniform distribution of soil between the rows.

[0045] During the pushing operation of the land clearing machine body 1, the soil on the high side of the slope will be turned over to the low side first. As the bulldozer plate 21 moves forward, the soil accumulated on the low side will enter the cavity 20 from the openings of the cavity 20 on the side of the guide plate 22c and d. Then it will flow along the inclined direction of the cavity 20 towards the points e and f. Since the cross-sectional area of ​​the opening of the cavity 20 on the side of the points e and f is larger, and the movement of the bulldozer plate 21 will cause the cavity 20 to shake as a whole, the soil at the points e and f end of the cavity 20 will fall from the opening on that side of the cavity 20, and then the soil will be redistributed to the high side of the slope. With the scraping action of the bulldozer plate 21, the soil in this area will be filled.

[0046] In addition, see Figure 9 As shown, the slope of a tea garden where tea trees are planted usually has an angle between 5° and 12°. In this scheme, the tilt angle of the central cavity 20 is set to be greater than the slope angle. Therefore, no matter where the land preparation machine 1 is working on the slope, the interior of the central cavity 20 will always be tilted towards points e and f, and will not change its internal tilt direction due to the slope itself.

[0047] It should be noted that the appendix Figure 7 The dotted arrows in the diagram indicate the direction of soil transport within the central cavity 20; (Attached) Figure 9 The solid dot and dashed arrow in the middle indicate the tilt direction inside the cavity 20. Figure 9 The solid or dashed arrows in the text indicate the terrain direction of the slope.

[0048] During slope preparation operations, the soil turned over by the rotary planer section 132 accumulates on the lower side of the slope. When this accumulated soil flows towards the feed inlets at points c and d in the central cavity 20, it is prone to scattering and accumulating outside the feed inlets due to the terrain difference and the dispersed nature of the soil particles. Therefore, it is necessary to combine this with... Figure 7 and Figure 8 An extension shovel 24 is fixedly connected to the side of the bulldozer plate 21 near the middle rotary planer section 132 (corresponding to the position below points c and d of the guide plate 22). This effectively guides the soil accumulated on the lower side to be oriented and gathered along the slope of the extension shovel 24 to the feed inlet on the side of points c and d of the middle cavity 20, reducing the residue and scattering of soil outside the feed inlet, and allowing the soil to enter the middle cavity 20 more smoothly to participate in redistribution.

[0049] On one side of points e and f in the central cavity 20, the bulldozer 21 is in an upright position with its vertical direction perpendicular to the ground. This allows the soil falling from this end to be concentrated at the bottom of the bulldozer 21. As the terracing machine body 1 moves forward along the slope, the bulldozer 21 will carry the concentrated soil at the bottom and smoothly scrape the higher end of the slope, filling the scattered soil into the low-lying area on the higher side, and finally achieving the leveling of the terrain between the rows of tea gardens.

[0050] See Figure 10 It can be seen that the interior of the guide plate 22 is a hollow structure. The surface of the concave part of the bulldozer plate 21 is equipped with a telescopic auxiliary rod 26, which adopts an inner and outer rod combined with a helical spring structure. The end of the auxiliary rod 26 away from the bulldozer plate 21 is connected to the bottom of the inner cavity of the guide plate 22, so that the length of the auxiliary rod 26 can be adjusted by telescoping, providing the guide plate 22 with shaking space inside the groove of the bulldozer plate 21. At the same time, the bottom of the guide plate 22 and the side near the inner wall of the bulldozer plate 21 are sealed with L-shaped vibration pads 25 (such as nitrile rubber). The vibration pads 25 will deform synchronously with the shaking of the guide plate 22, reducing the leakage of soil from the gap between the guide plate 22 and the bulldozer plate 21. They can also use elastic deformation to enhance the shaking amplitude of the guide plate 22, reduce the adhesion and retention of soil on the surface of the guide plate 22, and help the soil fall from the cavity 20 more quickly.

[0051] Side blocking plates 23 are respectively installed on both sides of the bulldozer 21, forming a ring. The two side blocking plates 23 are installed at the two openings of the central cavity 20 respectively (in a non-adhesive state, so as not to hinder the normal shaking of the guide plate 22 driven by the auxiliary rod 26), forming an auxiliary sealing structure for the two ends of the central cavity 20. Therefore, when the guide plate 22 shakes to help the soil fall faster, the soil in the central cavity 20 will tend to spread to both sides due to the shaking. The sealing effect of the side blocking plates 23 can prevent the soil from sliding down from both ends of the central cavity 20, ensuring the efficiency of soil redistribution to the higher side of the slope, while reducing the accumulation of the sliding soil on both sides of the tea garden rows, and maintaining the cleanliness of the terrain on both sides of the rows.

[0052] The improvement lies in the fact that the surface of the guide plate 22 and the inner wall of the bulldozer plate 21 forming the central cavity 20 are both covered with a smooth film (such as polytetrafluoroethylene material), so that the surface of the guide plate 22 and the inner wall of the bulldozer plate 21 form a complete and smooth contact surface, reducing the friction and adhesion between soil particles and the wall surface. When the soil flows along the inclined direction of the central cavity 20, it reduces the situation of soil sticking to the inside of the central cavity 20, maintains the continuous progress of land preparation operations, and ensures the efficiency of soil redistribution and slope filling.

[0053] Working principle:

[0054] First, the main body 1 of the land preparation machine is started. The main drive mechanism 12 drives the middle section of the rotary planer 132 of the rotary planer assembly 13 to rotate at the front end of the frame 11 to carry out basic soil turning operations between the rows of tea gardens. The two side rotary planers 131 are driven by independent DC motors. The support rods 134 fixed on their outer sides are movably connected to the frame connecting rods 133 extending from the front end of the frame 11, providing structural support for the angle adjustment of the side rotary planers 131.

[0055] During the soil turning operation, the infrared distance sensor 14 on the side rotary planer 131 continuously detects the distance between the side rotary planer 131 and the tea tree ridge and transmits the distance signal to the equipment control system. The control system sends a control command to the DC motor according to the preset safe distance threshold between the side rotary planer 131 and the tea tree ridge. After receiving the command, the DC motor runs and drives the side rotary planer 131 to rotate through the support rod 134 coaxially connected to the output shaft. When the side rotary planer 131 rotates in the opposite direction, it expands the overall soil turning range. When it rotates to be parallel with the middle rotary planer 132, it shrinks the soil turning range. The distance between the side section and the ridge is adjusted in real time to adapt to the irregular row spacing of tea trees on the slope.

[0056] During the pushing operation of the land clearing machine 1, the soil on the higher side of the slope will be turned over to the lower side first. As the bulldozer 21 moves forward, the soil accumulated on the lower side will enter the cavity 20 through the openings of the cavity 20 on the side of the guide plate 22c and d. Then it will flow along the inclined direction of the cavity 20 towards the points e and f. Since the cross-sectional area of ​​the opening of the cavity 20 on the side of the points e and f is larger, and the movement of the bulldozer 21 will cause the cavity 20 to shake as a whole, the soil at the points e and f end of the cavity 20 will fall out from the opening on that side of the cavity 20, thereby redistributing the soil to the higher end of the slope. With the scraping action of the bulldozer 21, the soil in this area is filled.

[0057] Example 2: Unlike Example 1, a small pulse air pump structure can be added to the outer wall of the side blocking plate 23 (on the side near the c and d ends of the guide plate 22) to reduce soil blockage in the middle cavity 20. The air pump's nozzle faces the inside of the middle cavity 20 and periodically releases high-pressure pulse airflow to directionally blow through the middle cavity 20 (especially the feed inlets at the c and d ends and the area on the surface of the guide plate 22 where soil is easily accumulated). This impacts and loosens the sticky or accumulated soil particles, allowing the soil to flow more smoothly along the inclined direction of the middle cavity 20 under the combined action of the airflow thrust and the shaking of the guide plate 22, thereby reducing soil blockage in the middle cavity 20 and ensuring the continuity of soil redistribution.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tea garden land preparation device based on adaptive adjustment of tea tree row spacing, comprising a land preparation machine body (1), wherein the land preparation machine body (1) is composed of a frame (11), a rotary planer wheel assembly (13) disposed at the front of the frame (11), and a bulldozer component (15) disposed at the rear of the frame (11), characterized in that: The rotary planer assembly (13) includes a central rotary planer section (132) and side rotary planer sections (131) symmetrically arranged on both sides thereon. The top of the frame (11) is provided with a main drive mechanism (12). Both side rotary planer sections (131) are provided with a distance measuring sensor (14) for detecting the distance between the side rotary planer section (131) and the tea tree ridging. The deflection angle of the two side rotary planer sections (131) is adjusted according to the detection signal of the distance measuring sensor (14). The bulldozer (15) includes a bulldozer plate (21) fixedly connected to the frame (11). The middle part of the bulldozer plate (21) has a concave structure. A guide plate (22) is provided inside the bulldozer plate (21). The guide plate (22) and the concave part of the bulldozer plate (21) together form a central cavity (20) for soil flow. The cross-sectional area of ​​the opening of the central cavity (20) on the side closer to the higher terrain is larger than the cross-sectional area of ​​the opening on the side closer to the lower terrain, so that the entire cavity of the central cavity (20) is tilted towards the side with higher terrain. Support rods (134) are fixedly connected to the outer sides of the two side rotary planer sections (131). Frame connecting rods (133) are extended on both sides of the front end of the frame (11). The two support rods (134) are movably connected to the ends of the frame connecting rods (133) on the same side. DC motors are fixedly installed at the ends of the two frame connecting rods (133). The guide plate (22) is arranged at an angle in space. Taking the surface of the guide plate (22) as a reference, the four corners of the top of the guide plate (22) are respectively marked as point c, point d, point e and point f. When the land preparation machine body (1) is turning over the soil at the bottom of the slope, point c and point d face the side with lower terrain, and point e and point f are located on the side with higher terrain. The bulldozer plate (21) is fixedly connected to the side of the middle rotary planer (132) with an extension shovel plate (24).

2. The tea garden land preparation device based on adaptive adjustment of tea tree row spacing according to claim 1, characterized in that: The output shaft of the DC motor is coaxially connected to the rotating shaft at the top of the support rod (134) on the same side, and the ranging sensor (14) is electrically connected to the DC motor.

3. The tea garden land preparation device based on adaptive adjustment of tea tree row spacing according to claim 1, characterized in that: The extended shovel (24) is located below points c and d of the guide plate (22).

4. The tea garden land preparation device based on adaptive adjustment of tea tree row spacing according to claim 1, characterized in that: The interior of the guide plate (22) is hollow. An auxiliary rod (26) is installed on the concave surface of the bulldozer plate (21). The auxiliary rod (26) is a telescopic structure. The other end of the auxiliary rod (26) is connected to the bottom of the inner cavity of the guide plate (22).

5. The tea garden land preparation device based on adaptive adjustment of tea tree row spacing according to claim 4, characterized in that: The bottom of the guide plate (22) and the side near the inner wall of the bulldozer plate (21) are both sealed with a vibration pad (25). The vibration pad (25) has an L-shaped cross-section and is made of elastic material.

6. The tea garden land preparation device based on adaptive adjustment of tea tree row spacing according to claim 4, characterized in that: The bulldozer plate (21) is provided with side blocking plates (23) on both sides, and the two side blocking plates (23) can assist in sealing the two ends of the cavity (20).

7. The tea garden land preparation device based on adaptive adjustment of tea tree row spacing according to claim 4, characterized in that: The surface of the guide plate (22) and the inner wall of the bulldozer plate (21) are covered with a smooth film.

Images