Agricultural rotary cultivator

Abstract

The invention relates to the technical field of rotary cultivators, in particular to an agricultural rotary cultivator which comprises a rack body, a pneumatic adjusting arm for adjusting the tilling depth is arranged on the rack body, a cutter shaft transmission mechanism for turning and loosening soil is arranged in the rack body, and a rotary tillage auxiliary mechanism for breaking a soil layer is arranged at the upper end of the rack body. The side face of the rack body is provided with a soil layer leveling mechanism for scraping and crushing soil, the rotary tillage auxiliary mechanism comprises installation supports symmetrically installed on the rack body, a driving circular shaft is movably installed on the installation supports, and a hammering protruding block is fixedly installed in the middle of the driving circular shaft. By arranging the rotary tillage auxiliary mechanism and utilizing mutual cooperation between a hammering convex block and a driving circular shaft, hardened surface soil can be automatically knocked and crushed before a metal blade makes contact with a soil layer, the metal blade can conveniently turn over and grind the soil, the plowing effect can be guaranteed, and the working efficiency is improved. And the wear rate of the metal blade can be delayed to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of rotary tillers, and in particular to an agricultural rotary tiller. Background Art

[0002] A rotary tiller is a tilling machine that is used in conjunction with a tractor to complete plowing and harrowing operations. It can be divided into two types: horizontal-axis type and vertical-axis type according to the configuration of its rotary tiller blade shaft. Nowadays, horizontal-axis rotary tillers with horizontal blade shafts are more commonly used.

[0003] However, the structures of most rotary tillers in the prior art are relatively simple, and they often use the shear force generated by the rapid rotation of the blade shaft to break and till the soil. After rotary tillage, the soil loses a lot of moisture, is fine and easy to compact, and can easily cause dust on the surface of the farmland. In addition, for some soils whose surface is full of weeds or in a compacted state, the efficiency of breaking only by the rotation of the blade shaft is low, and the wear rate of the blade shaft will be greatly increased. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an agricultural rotary tiller, which solves the technical problems that the rotary tillers in the prior art have a simple structure and a poor effect in breaking up and tilling compacted soil on the surface. It has the advantages of both effectively improving the tillage effect and reducing the wear rate of the blade shaft.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an agricultural rotary tiller, comprising a frame body, a pneumatic adjustment arm for adjusting the tillage depth is arranged on the frame body, a knife shaft transmission mechanism for turning over and loosening the soil is arranged inside the frame body, a rotary tillage auxiliary mechanism for breaking up the soil layer is arranged at the upper end of the frame body, and a soil leveling mechanism for scraping and leveling the broken soil is arranged on the side of the frame body. When the rotary tiller moves horizontally following the tractor, the knife shaft transmission mechanism and the rotary tillage auxiliary mechanism will automatically turn over and loosen the soil, and at the same time, the soil leveling mechanism will loosen the loose soil. The rotary tillage auxiliary mechanism includes a mounting bracket symmetrically mounted on the frame body, a driving circular shaft is movably mounted on the mounting bracket, a hammering lug is fixedly mounted on the middle part of the driving circular shaft, a sliding circular rod is slidably connected to the frame body, a rubber block is fixedly mounted on the upper end of the sliding circular rod, a soil-breaking component is detachably mounted on the lower end of the sliding circular rod, a reset spring is provided on the outer sleeve of the sliding circular rod, and during the rotation of the driving circular shaft, the hammering lug will intermittently contact the rubber block, and when in contact, the rubber block and the sliding circular rod will move downward rapidly, thereby breaking the soil layer.

[0006] Preferably, the blade shaft transmission mechanism includes a rotary tiller blade shaft movably mounted inside a frame body, a synchronous fertilization mechanism is arranged above the rotary tiller blade shaft, a plurality of groups of metal blades are detachably mounted on the outside of the rotary tiller blade shaft, a mounting shell is fixedly mounted on the frame body, a gear box is fixedly mounted on the upper end of the mounting shell, a rotating circular shaft is movably mounted inside the gear box, a first transmission belt is arranged between the rotating circular shaft and the rotary tiller blade shaft, a rotating shaft is movably mounted on the gear box, a driving assembly is arranged on the rotating shaft, and when the rotating circular shaft rotates under the action of the driving assembly, the rotary tiller blade shaft will rotate rapidly through the cooperation of the first transmission belt.

[0007] Preferably, the drive assembly consists of a universal joint and a transmission shaft, one end of the transmission shaft is transmission-connected to the rotating shaft through the universal joint, and the other end of the transmission shaft is transmission-connected to the tractor drive shaft through the universal joint. When the tractor drive shaft rotates, the rotating shaft will rotate synchronously through the transmission shaft and the universal joint.

[0008] Preferably, a bevel gear set is arranged between the rotating circular shaft and the rotating shaft, and the bevel gear set includes a driven bevel gear coaxially sleeved on the rotating circular shaft, and a driving bevel gear is coaxially sleeved on one end of the rotating shaft located inside the gear box, and the driven bevel gear is meshed with the driving bevel gear. When the rotating shaft rotates, the rotating circular shaft will rotate rapidly through the bevel gear set.

[0009] Preferably, the soil-breaking assembly includes a rectangular square plate fixedly connected to the sliding round rod, and a soil-breaking iron cone is fixedly installed on the rectangular square plate. When the sliding round rod moves downward, the soil-breaking iron cone will contact the soil surface, thereby breaking up the compacted surface soil.

[0010] Preferably, a second transmission belt is provided between the driving shaft and the rotary tiller shaft, and when the rotary tiller shaft rotates, the driving shaft will rotate synchronously through cooperation with the second transmission belt.

[0011] Preferably, the synchronous fertilization mechanism includes a drainage square tube fixedly mounted on the frame body, a storage square tank is detachably mounted on the upper end of the drainage square tube, a rectangular push plate is slidably connected to the interior of the storage square tank, an electric push rod is fixedly mounted on the upper end of the inner cavity of the storage square tank, the lower end of the drainage square tube is connected to an arc-shaped drainage plate, a plurality of liquid spraying circular nozzles are evenly spaced at the lower end of the arc-shaped drainage plate, and after the fertilizer inside the storage square tank enters the arc-shaped drainage plate through the drainage square tube, it will be sprayed downward through a plurality of liquid spraying circular nozzles, thereby adding a certain amount of fertilizer to the interior of the tilled soil.

[0012] Preferably, the rectangular push plate fits tightly against the inner wall of the square storage tank, and the interior of the arc-shaped drainage plate is hollow. When the rectangular push plate is in a stationary state, the fertilizer will not be discharged outward through the circular spray nozzle.

[0013] Preferably, the soil leveling mechanism includes vertical slide rails symmetrically installed on both sides of the frame body, the vertical slide rails are slidably connected to the inside of the vertical slide rails with a sliding straight plate, the vertical slide rails are fixedly installed with a guide round rod, a mounting square plate is fixedly installed on the sliding straight plate, and a plurality of angular scrapers are evenly spaced at the lower end of the mounting square plate. When the mounting square plate moves synchronously with the frame body, the multiple angular scrapers will scrape the newly plowed soil flat.

[0014] Preferably, a limit assembly is movably installed on the side of the vertical slide rail, and before the tillage operation begins, the limit assembly is located below the sliding straight plate, and the sliding straight plate cannot move downward at this time.

[0015] By means of the above technical solution, the present invention provides an agricultural rotary tiller, which has at least the following beneficial effects:

[0016] 1. The present invention sets a rotary tillage auxiliary mechanism and utilizes the cooperation between the hammer bump and the driving circular shaft to automatically knock and break the compacted surface soil before the metal blade contacts the soil layer, making it easier for the metal blade to plow and crush the soil, thereby ensuring the plowing effect and slowing down the wear rate of the metal blade to a certain extent.

[0017] 2. The present invention sets a rotary tillage auxiliary mechanism and utilizes the mutual cooperation between the driving shaft and the second transmission belt. It can utilize the rotation of the rotary tillage blade shaft to drive the driving shaft to rotate synchronously without the need for a separate driving motor. This can not only reduce the size and weight of the rotary tiller, but also provide convenience for outdoor operations.

[0018] 3. The present invention sets a knife shaft transmission mechanism and utilizes the mutual cooperation between the rotary tillage knife shaft and the metal blade, which can not only turn the soil over to mix the soil surface with the bottom layer to enhance the air permeability and water retention of the soil, but also turn the weeds and residues on the surface into the soil to reduce the growth of weeds, which is beneficial to the growth and development of subsequent sown crops.

[0019] 4. The present invention sets a knife shaft transmission mechanism and utilizes a pneumatic adjustment arm to be connected to the tractor hydraulic system, so that the plow depth can be flexibly adjusted during the process of turning over and loosening the soil, thereby being suitable for a variety of different soil environments, easy to use, and can improve the application scope of the rotary tiller to a certain extent.

[0020] 5. The present invention sets a synchronous fertilization mechanism and utilizes the mutual cooperation between the arc-shaped drainage plate and the drainage square tube. It can automatically add a certain amount of fertilizer into the soil during tillage, thereby increasing soil organic matter and improving soil fertility. It can reduce the damage to the soil caused by the rotary tiller to a certain extent and avoid causing soil-borne diseases and insect pests.

[0021] 6. The present invention sets up a synchronous fertilization mechanism and utilizes the mutual cooperation between the rectangular push plate and the electric push rod to automatically complete the quantitative spraying of fertilizers without the need for manual work by the staff. This can not only effectively reduce the labor intensity of the staff, but also ensure the uniformity of fertilizer spraying. Moreover, after the fertilizer is sprayed, it can effectively prevent dust from the surface soil.

[0022] 7. The present invention provides a soil leveling mechanism and utilizes the cooperation between the installed square plate and the angled scraper to automatically level the soil after plowing. There is no need for manual leveling by workers. This can not only improve the aesthetics of the plowing operation, but also prevent the soil from being too loose and easily lost, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0025] Figure 2 It is a bottom schematic diagram of the overall structure of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the knife shaft transmission mechanism in the present invention;

[0027] Figure 4 It is a structural schematic diagram of the rotary tillage auxiliary mechanism in the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the hammering bump in the present invention;

[0029] Figure 6 It is a structural schematic diagram of the synchronous fertilization mechanism in the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the circular liquid spray nozzle in the present invention;

[0031] Figure 8 It is a structural schematic diagram of the arc-shaped liquid discharge plate in the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the soil layer leveling mechanism in the present invention;

[0033] Fig.10 It is a schematic diagram of the structure of the limiting component in the present invention.

[0034] In the figure: 1, frame body; 2, pneumatic adjustment arm; 3, knife shaft transmission mechanism; 301, rotary tillage knife shaft; 302, metal blade; 303, mounting housing; 304, gear box; 305, rotating circular shaft; 306, first transmission belt; 307, driving assembly; 308, bevel gear set; 4, rotary tillage auxiliary mechanism; 401, mounting bracket; 402, driving circular shaft; 403, hammering bump; 404, second transmission belt; 405, sliding circular rod; 406, rubber block; 407, soil breaking assembly; 408, reset spring; 5, synchronous fertilization mechanism; 501, storage square tank; 502, rectangular push plate; 503, electric push rod; 504, drainage square pipe; 505, arc drainage plate; 506, liquid spraying round nozzle; 6, soil leveling mechanism; 601, vertical slide rail; 602, sliding straight plate; 603, guide round rod; 604, installation square plate; 605, angle scraper; 606, limit assembly. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1

[0037] In order to mix the soil surface with the bottom layer and enhance the soil's air permeability and water retention, Figure 1 , Figure 2 as well as Figure 3As shown, the present embodiment is provided with a blade shaft transmission mechanism 3, specifically, the blade shaft transmission mechanism 3 comprises a rotary tillage blade shaft 301 movably mounted inside the frame body 1, a synchronous fertilization mechanism 5 is arranged above the rotary tillage blade shaft 301, a plurality of groups of metal blades 302 are detachably mounted outside the rotary tillage blade shaft 301, a mounting shell 303 is fixedly mounted on the frame body 1, a gear box 304 is fixedly mounted on the upper end of the mounting shell 303, a rotating circular shaft 305 is movably mounted inside the gear box 304, a first transmission belt 306 is arranged between the rotating circular shaft 305 and the rotary tillage blade shaft 301, a rotating shaft is movably mounted on the gear box 304, a driving assembly 307 is arranged on the rotating shaft, and the rotating circular shaft 305 rotates under the action of the driving assembly 307 When the rotary tiller shaft 301 rotates rapidly through the cooperation of the first transmission belt 306, the driving assembly 307 consists of a universal joint and a transmission shaft, one end of the transmission shaft is connected to the rotating shaft through the universal joint, and the other end of the transmission shaft is connected to the tractor driving shaft through the universal joint. When the tractor driving shaft rotates, the rotating shaft will rotate synchronously through the transmission shaft and the universal joint. A bevel gear set 308 is arranged between the rotating circular shaft 305 and the rotating shaft. The bevel gear set 308 includes a driven bevel gear coaxially sleeved on the rotating circular shaft 305, and a driving bevel gear is coaxially sleeved at one end of the rotating shaft located inside the gear box 304. The driven bevel gear is meshed with the driving bevel gear. When the rotating shaft rotates, the rotating circular shaft 305 will rotate rapidly through the bevel gear set 308.

[0038] When using the rotary tiller to turn over and loosen the soil, first, the staff will connect one end of the transmission shaft to the rotating shaft through a universal joint, and connect the other end of the transmission shaft to the tractor drive shaft through a universal joint, and then connect the pneumatic adjustment arm 2 to the hydraulic system of the tractor.

[0039] Next, the tractor will move horizontally along the cultivated land. At the same time, the rotary tiller shaft 301 will rotate rapidly under the cooperation between the first transmission belt 306 and the rotating circular shaft 305. When the rotary tiller shaft 301 rotates, multiple sets of metal blades 302 will automatically break and flip the soil layer, thereby achieving the effect of turning over and loosening the soil.

[0040] Moreover, during the process of turning over and loosening the soil, the staff can use the tractor hydraulic system to adjust the height of the pneumatic adjusting arm 2. When the height of the pneumatic adjusting arm 2 changes, the tillage depth will change synchronously, which is convenient to use.

[0041] The present embodiment sets a knife shaft transmission mechanism 3, and utilizes the mutual cooperation between the rotary tillage knife shaft 301 and the metal blade 302, so as to not only turn over the soil to mix the surface layer of the soil with the bottom layer, thereby enhancing the air permeability and water retention of the soil, but also turn the weeds and residues on the surface into the soil, thereby reducing the growth of weeds and facilitating the growth and development of subsequent sown crops; moreover, the present embodiment sets a knife shaft transmission mechanism 3, and utilizes the pneumatic adjustment arm 2 to be connected with the tractor hydraulic system for transmission, so as to flexibly adjust the plow depth in the process of turning over and loosening the soil, thereby being applicable to a variety of different soil environments, being easy to use, and being able to improve the application scope of the rotary tiller to a certain extent.

[0042] Embodiment 2

[0043] Most rotary tillers in the prior art have a relatively simple structure, and often use the shear force generated by the rapid rotation of the blade shaft to break and till the soil. After rotary tillage, the soil loses a lot of moisture, is fine and easy to compact, and easily causes dust on the farmland surface. In addition, for some soils with weeds or in a compacted state, the efficiency of breaking only by the rotation of the blade shaft is low, and the wear rate of the blade shaft will be greatly increased. In order to solve this technical defect in the prior art, such as Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As shown, as shown, this embodiment proposes an agricultural rotary tiller, which can automatically knock and break the compacted surface soil before the metal blade 302 contacts the soil layer. The rotary tiller frame body 1 is provided with a pneumatic adjustment arm 2 for adjusting the tillage depth, and the interior of the frame body 1 is provided with a knife shaft transmission mechanism 3 for turning over and loosening the soil. The upper end of the frame body 1 is provided with a rotary tillage auxiliary mechanism 4 for breaking up the soil layer, and the side of the frame body 1 is provided with a soil leveling mechanism 6 for scraping and leveling the broken soil. In the process of the rotary tiller following the horizontal movement of the tractor, the knife shaft transmission mechanism 3 and the rotary tillage auxiliary mechanism 4 will automatically turn over and loosen the soil. At the same time, the soil leveling mechanism 6 will scrape the loose soil blocks flat.

[0044] In order to improve the efficiency of the soil plow as much as possible and reduce the wear rate of the metal blade 302, based on the first embodiment, the present embodiment is provided with a rotary tillage auxiliary mechanism 4. Specifically, the rotary tillage auxiliary mechanism 4 includes a mounting bracket 401 symmetrically mounted on the frame body 1, a driving circular shaft 402 is movably mounted on the mounting bracket 401, a hammering bump 403 is fixedly mounted on the middle part of the driving circular shaft 402, a second transmission belt 404 is arranged between the driving circular shaft 402 and the rotary tillage blade shaft 301, when the rotary tillage blade shaft 301 rotates, the driving circular shaft 402 will rotate synchronously through the cooperation with the second transmission belt 404, a sliding circular rod 405 is slidably connected to the frame body 1, and a sliding circular rod 405 is slidably connected to the frame body 1. A rubber block 406 is fixedly installed on the upper end of the round rod 405, and a soil-breaking component 407 is detachably installed on the lower end of the sliding round rod 405. The soil-breaking component 407 includes a rectangular square plate fixedly connected to the sliding round rod 405, and a soil-breaking iron cone is fixedly installed on the rectangular square plate. When the sliding round rod 405 moves downward, the soil-breaking iron cone will contact the soil surface, thereby breaking the compacted surface soil. A return spring 408 is provided on the outer sleeve of the sliding round rod 405. During the rotation of the driving round shaft 402, the hammer bump 403 will intermittently contact the rubber block 406. When in contact, the rubber block 406 and the sliding round rod 405 will move downward rapidly, thereby breaking the soil layer.

[0045] According to the above content, when the rotary tiller shaft 301 rotates rapidly under the cooperation of the first transmission belt 306 and the driving assembly 307, the driving shaft 402 will rotate synchronously through the cooperation with the second transmission belt 404.

[0046] During the rotation of the driving circular shaft 402, the hammer bump 403 will intermittently collide with the rubber block 406, and the collision will cause the sliding circular rod 405 to move vertically downward. During the rapid downward movement of the sliding circular rod 405, multiple earth-breaking iron cones will simultaneously knock on the soil layer, thereby breaking up the compacted surface soil, which is convenient for the subsequent soil turning and loosening operations.

[0047] In this embodiment, a rotary tillage auxiliary mechanism 4 is provided, and the cooperation between the hammer bump 403 and the driving shaft 402 is utilized. Before the metal blade 302 contacts the soil layer, the compacted surface soil can be automatically knocked and broken, so that the metal blade 302 can turn over and crush the soil, which can not only ensure the plowing effect, but also slow down the wear rate of the metal blade 302 to a certain extent. Moreover, in this embodiment, a rotary tillage auxiliary mechanism 4 is provided, and the cooperation between the driving shaft 402 and the second transmission belt 404 is utilized. The rotation of the rotary tillage blade shaft 301 can be used to drive the driving shaft 402 to rotate synchronously, without the need for a separate driving motor. This can not only reduce the size and weight of the rotary tiller, but also provide convenience for outdoor operations.

[0048] Embodiment 3

[0049] In order to minimize the damage to the soil caused by the rotary tiller during tillage, Figure 1 , Figure 4 as well as Figure 6-Figure 8 As shown, on the basis of the above embodiment, the present embodiment is provided with a synchronous fertilization mechanism 5. Specifically, the synchronous fertilization mechanism 5 comprises a square drainage pipe 504 fixedly mounted on the frame body 1, a square material storage tank 501 is detachably mounted on the upper end of the square drainage pipe 504, a rectangular push plate 502 is slidably connected to the interior of the square material storage tank 501, the rectangular push plate 502 is tightly fitted to the inner wall of the square material storage tank 501, an electric push rod 503 is fixedly mounted on the upper end of the inner cavity of the square material storage tank 501, and the square drainage pipe 504 is detachably mounted with a square material storage tank 501. The lower end of the rectangular push plate 502 is connected to an arc-shaped drainage plate 505, and the interior of the arc-shaped drainage plate 505 is hollow. When the rectangular push plate 502 is in a stationary state, the fertilizer will not be discharged outward through the liquid spraying round nozzle 506. A plurality of liquid spraying round nozzles 506 are arranged at equal intervals at the lower end of the arc-shaped drainage plate 505. After the fertilizer inside the storage square tank 501 enters the arc-shaped drainage plate 505 through the liquid discharge square tube 504, it will be sprayed downward through a plurality of liquid spraying round nozzles 506, thereby adding a certain amount of fertilizer to the inside of the tilled soil.

[0050] According to the above content, it can be known that in the process of using the rotary tiller to till the soil, the rectangular push plate 502 will slowly move downward at a constant rate under the action of the electric push rod 503. When the rectangular push plate 502 moves downward, the liquid fertilizer inside the storage square tank 501 will enter the interior of the arc-shaped drainage plate 505 through the drainage square tube 504.

[0051] Subsequently, the liquid fertilizer will be synchronously sprayed downwards through a plurality of circular spray nozzles 506, thereby fertilizing the soil that has just been plowed, thereby increasing soil organic matter, improving soil fertility, and promoting straw composting.

[0052] This embodiment, by setting up a synchronous fertilization mechanism 5 and utilizing the mutual cooperation between the arc-shaped drainage plate 505 and the drainage square tube 504, can automatically add a certain amount of fertilizer into the soil during the process of tilling the soil, thereby increasing the soil organic matter and improving the soil fertility, and can reduce the damage to the soil caused by the rotary tiller to a certain extent, and avoid causing soil-borne diseases and insect pests; moreover, this embodiment, by setting up a synchronous fertilization mechanism 5 and utilizing the mutual cooperation between the rectangular push plate 502 and the electric push rod 503, can automatically complete the quantitative spraying of fertilizer, without the need for manual work by the staff, which can effectively reduce the labor intensity of the staff and ensure the uniformity of fertilizer spraying.

[0053] Embodiment 4

[0054] In order to make the farmland after plowing more flat and improve the appearance, based on the above embodiment, as Figure 1 , Figure 2 , Fig. 9 as well as Fig.10 As shown, the present embodiment is provided with a soil leveling mechanism 6. Specifically, the soil leveling mechanism 6 comprises vertical slide rails 601 symmetrically mounted on both sides of the frame body 1. The vertical slide rails 601 are internally slidably connected with a sliding straight plate 602. A guide round rod 603 is fixedly mounted inside the vertical slide rails 601. A mounting square plate 604 is fixedly mounted on the sliding straight plate 602. A plurality of angular scrapers 605 are evenly spaced at the lower end of the mounting square plate 604. When the mounting square plate 604 moves synchronously with the frame body 1, the plurality of angular scrapers 605 will scrape the soil that has just been plowed flat. A limit assembly 606 is movably mounted on the side of the vertical slide rail 601. Before the plowing operation begins, the limit assembly 606 is located below the sliding straight plate 602, and at this time the sliding straight plate 602 cannot move downward.

[0055] According to the above content, before the tillage operation begins, the staff will pull the limit assembly 606 outward, and then the mounting square plate 604 will move downward under the action of gravity, so that multiple angle scrapers 605 will contact the soil at the same time.

[0056] Subsequently, as the frame body 1 moves, the mounting square plate 604 and the angle scraper 605 will also move together. During the movement, the angle scraper 605 will flatten the newly plowed soil, which can not only improve the aesthetics but also prevent soil loss.

[0057] This embodiment provides a soil leveling mechanism 6, and utilizes the cooperation between the mounting square plate 604 and the angled scraper 605 to automatically level the soil after plowing, without the need for manual leveling by workers. This can not only improve the aesthetics of the plowing operation, but also prevent the soil from being too loose and easily lost, and is easy to use.

[0058] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An agricultural rotary tiller, comprising a frame body (1), on which a pneumatic adjustment arm (2) for adjusting tillage depth is provided, characterized in that: The frame body (1) is provided with a knife shaft transmission mechanism (3) for turning over and loosening the soil inside, the upper end of the frame body (1) is provided with a rotary tillage auxiliary mechanism (4) for breaking up the soil layer, and the side of the frame body (1) is provided with a soil layer leveling mechanism (6) for scraping and leveling the broken soil; The rotary tillage auxiliary mechanism (4) comprises a mounting bracket (401) symmetrically mounted on the frame body (1); a driving shaft (402) is movably mounted on the mounting bracket (401); a hammering lug (403) is fixedly mounted in the middle of the driving shaft (402); a sliding rod (405) is slidably connected to the frame body (1); a rubber block (406) is fixedly mounted on the upper end of the sliding rod (405); a soil breaking assembly (407) is detachably mounted on the lower end of the sliding rod (405); and a return spring (408) is sleeved on the outside of the sliding rod (405).

2. The agricultural rotary tiller according to claim 1, characterized in that: The blade shaft transmission mechanism (3) comprises a rotary tiller blade shaft (301) movably mounted inside a frame body (1); a synchronous fertilization mechanism (5) is arranged above the rotary tiller blade shaft (301); a plurality of groups of metal blades (302) are detachably mounted outside the rotary tiller blade shaft (301); a mounting shell (303) is fixedly mounted on the frame body (1); a gear box (304) is fixedly mounted on the upper end of the mounting shell (303); a rotating circular shaft (305) is movably mounted inside the gear box (304); a first transmission belt (306) is arranged between the rotating circular shaft (305) and the rotary tiller blade shaft (301); a rotating shaft is movably mounted on the gear box (304); and a driving assembly (307) is arranged on the rotating shaft.

3. The agricultural rotary tiller according to claim 2, characterized in that: The driving assembly (307) is composed of a universal joint and a transmission shaft, one end of the transmission shaft is transmission-connected to the rotating shaft via the universal joint, and the other end of the transmission shaft is transmission-connected to the tractor driving shaft via the universal joint.

4. The agricultural rotary tiller according to claim 3, characterized in that: A bevel gear set (308) is provided between the rotating circular shaft (305) and the rotating shaft. The bevel gear set (308) comprises a driven bevel gear coaxially sleeved on the rotating circular shaft (305). A driving bevel gear is coaxially sleeved on one end of the rotating shaft located inside the gear box (304). The driven bevel gear meshes with the driving bevel gear.

5. The agricultural rotary tiller according to claim 1, characterized in that: The earth-breaking assembly (407) comprises a rectangular square plate fixedly connected to the sliding round rod (405), and an earth-breaking iron cone is fixedly mounted on the rectangular square plate.

6. The agricultural rotary tiller according to claim 2, characterized in that: A second transmission belt (404) is provided between the driving circular shaft (402) and the rotary tiller shaft (301).

7. The agricultural rotary tiller according to claim 1, characterized in that: The synchronous fertilization mechanism (5) comprises a square drainage tube (504) fixedly mounted on the frame body (1); a square material storage tank (501) is detachably mounted on the upper end of the square drainage tube (504); a rectangular push plate (502) is slidably connected to the interior of the square material storage tank (501); an electric push rod (503) is fixedly mounted on the upper end of the inner cavity of the square material storage tank (501); the lower end of the square drainage tube (504) is connected to an arc-shaped drainage plate (505); and a plurality of circular liquid spray nozzles (506) are evenly spaced at the lower end of the arc-shaped drainage plate (505).

8. The agricultural rotary tiller according to claim 7, characterized in that: The rectangular push plate (502) is tightly fitted to the inner wall of the material storage square tank (501), and the interior of the arc-shaped liquid discharge plate (505) is hollow.

9. The agricultural rotary tiller according to claim 1, characterized in that: The soil leveling mechanism (6) comprises vertical slide rails (601) symmetrically mounted on both sides of the frame body (1); a sliding straight plate (602) is slidably connected inside the vertical slide rail (601); a guide round rod (603) is fixedly mounted inside the vertical slide rail (601); a mounting square plate (604) is fixedly mounted on the sliding straight plate (602); and a plurality of angular scrapers (605) are evenly spaced at the lower end of the mounting square plate (604).

10. The agricultural rotary tiller according to claim 9, characterized in that: A limiting assembly (606) is movably installed on the side of the vertical slide rail (601).

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