Agricultural water floating type raking machine

Abstract

The utility model relates to the technical field of agricultural equipment, and discloses an agricultural water floating type harrow cultivator which is characterized in that a tractor is connected with a rack, the rack is connected to the top of a lifting device, and the lifting device is flexibly connected to a suspension harrow through a flexible connecting piece. The tilling depth of the suspension harrow is prevented from being influenced by bumping of a tractor, so that the tilling depth is consistent, the harrow leakage condition is reduced, and the operation quality and efficiency are improved; the rotary lifting mechanism is rotationally arranged and connected to the top of the lifting support, the rotary lifting hydraulic assembly is arranged above the lifting support and connected with the rotary turning rake, the rotary turning rake is folded around the suspension rake through work of the rotary lifting hydraulic assembly, the situation that a tractor head of the tractor is upwarped due to the fact that the rotary turning rake and the suspension rake are too long is prevented, and the space utilization rate is increased; and meanwhile, the potential damage risk to the surrounding environment and other equipment in the transportation process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural equipment, in particular to an agricultural water floating harrow. Background Art

[0002] The development of modern agriculture depends on the progress of mechanization. The mechanized cultivation of large-scale paddy fields mainly includes plowing, land preparation, transplanting, field management and harvesting. Due to the uneven surface, weeds growing on paddy fields, and straw returning to the fields in existing large-scale cultivated paddy fields, the existing mechanical agricultural tools are facing severe tests, and the shape, function, material, structure, etc. of the existing mechanical agricultural tools need to be designed. The design of new mechanical agricultural tools can effectively promote the advancement of agricultural standardization, increase the use and efficiency of agricultural mechanization, and is of great significance to the quality, output, safety and other aspects of grain.

[0003] Existing large-scale paddy fields generally use rotary tillers for mechanized tillage, but existing rotary tillers often turn deep soil to the surface during operation, while burying fertile surface soil underground, destroying soil nutrients and affecting soil permeability, which damages soil health. Since rice roots mainly grow in shallow soil layers less than 25 cm, rotary tillage depths exceeding 25 cm are basically ineffective.

[0004] For example, a high-efficiency rotary tiller (CN115529863A) includes a frame, a rake, etc. The rake performs rotary tillage. The power of the rotary tiller is decomposed into a thrust between the rake and the soil and a friction between the rake and the soil, generating useless friction force, resulting in increased energy consumption and decreased power.

[0005] Since the rotary tiller relies on the tractor as traction power, the rotary tiller and the harrow are rigidly connected. When the tractor is working in the field, the wheels on both sides of the tractor sink into the soil to different depths during the traction process, causing the tractor body to tilt, driving the rotary tiller to tilt, resulting in uneven soil after rotary tillage. When plowing the land, straw and rice straw are easily entangled with the harrow, which also leads to poor straw return effect, high failure rate and low work efficiency.

[0006] For example, a household land leveling device with lifting and lowering gears and adjustable angle (CN219592990U) is installed on a walking tractor. The working height or obstacle clearance height of the leveling rake is adjusted by cooperating with the lifting and lowering hand brake assembly and the lifting and lowering gear teeth. During operation, the working angle of the leveling rake is adjusted by cooperating with the angle adjustment rod and the angle stopper. However, since the leveling rake is directly hard-connected to the walking tractor through the hanging rod, the hard connection lacks elasticity. When the tractor works on farmland with uneven surface, height difference or bumps, rugged or obstacle-ridden farmland, the soil of the leveled farmland is uneven, and the land cannot be effectively leveled. It may even cause damage when encountering large obstacles.

[0007] For example, a folding suspension leveler (CN101940082A) for a compound rotary tiller for paddy fields, when working, the end of the reinforcing chain must be connected to the suspension frame of the rotary tiller. During the operation of the rotary tiller, when the siltation of the field soil varies, the tractor body tilts, causing the leveler at the rear end of the rotary tiller to tilt up and leak the soil, the folding suspension leveler can rotate freely because the horizontal plate is movably inserted on the leveling plate through the mounting shaft and the horizontal plate mounting seat, and the horizontal plate always keeps the same horizontal state as the soil on the surface of the farmland, which can ensure that the horizontal plate can rake the farmland soil once and for all, ensuring the quality of the preparation work before farmland planting; however, the paddy field leveler is only used for leveling the field, and needs to cooperate with the rotary tiller when in use, resulting in increased farming costs. Utility Model Content

[0008] The utility model provides an agricultural water floating harrow to overcome the technical problems existing in the prior art.

[0009] The agricultural water floating harrow and tillage method of the utility model is suitable for tilling farmland with uneven surface, height difference or bumps, rugged or obstacle-filled farmland, and can be used for returning the straw of crops such as rice, corn and wheat to the field.

[0010] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0011] An agricultural water floating harrowing machine comprises: a tractor, a frame, a suspension device and a floating harrow;

[0012] The frame is connected to the rear of the tractor and is used to support the suspension device;

[0013] The suspension device is connected to the frame and is used to suspend, lift and drive the suspended rake;

[0014] The suspended harrow is connected to the suspension device via a flexible connector and is used for harrowing operations on farmland;

[0015] The suspension rake comprises a suspension plate and a plurality of rake blades, wherein the suspension plate is provided with a plurality of rake blades at intervals along the length direction and the width direction.

[0016] Preferably, the flexible connector includes a steel wire rope, a steel chain rope, an alloy rope, a metal chain, etc.

[0017] Furthermore, the suspension device includes: a lifting bracket, a rotating mechanism symmetrically arranged on the lifting bracket and a lifting hydraulic component; the rotating mechanism can be rotatably arranged and connected to the top of the lifting bracket; the lifting hydraulic component is arranged above the lifting bracket and connected to the suspension rake for lifting the suspension rake.

[0018] Preferably, the lifting rod is one of a hydraulic cylinder and a pneumatic cylinder.

[0019] Preferably, the rotating mechanism is a "7"-shaped square tube assembly, one end of the "7"-shaped square tube is rotatably connected to a lifting bracket, and the "7"-shaped square tube is connected to a floating rake through a flexible connector; the "7"-shaped rotating mechanism is driven to rotate around the lifting bracket by the telescopic rod of the lifting pull rod, thereby stretching the flexible connector to rotate the floating rake.

[0020] Further, the frame includes: a lifting rod, a support rod and a connecting frame;

[0021] The lifting rod is arranged between the tractor and the suspension device, and the lifting rod and the lifting hydraulic assembly are connected to the hydraulic system of the tractor through a pipeline;

[0022] The support rods are symmetrically arranged below the lifting rods and are used to suspend the suspension device;

[0023] The telescopic rod of the lifting rod is connected to the lifting bracket through a connecting frame.

[0024] Furthermore, the suspension board is formed by a plurality of suspension plates with buoyancy that are rigidly connected to each other, and the suspension plates are provided with a plurality of rakes at intervals along the length.

[0025] Furthermore, the suspension plate is a sealed metal tube, and a plurality of sealed metal tubes are rigidly connected to each other on the width side to form the suspension plate.

[0026] Preferably, the rake is installed in the length direction of the sealed metal pipe by welding.

[0027] Preferably, the overall weight of the suspended rake is 1 to 3 tons, and after the buoyancy of the sealed metal tube partially offsets the overall weight of the suspended rake, the rake blade part of the suspended rake just sinks into the mud.

[0028] Preferably, the suspension plate is formed by a plurality of sealed metal tubes rigidly connected to each other, the sealed metal tubes are provided with 30 to 120 rakes at intervals along the length, and 3 to 16 sealed metal tubes are rigidly connected to each other to form a suspension rake.

[0029] Furthermore, a scraper is provided at the front end of the suspended rake; the scraper is connected to the suspension device via a flexible connector to drive the scraper to rise and fall.

[0030] Furthermore, the edge of the suspension rake is detachably connected to a rotary turning rake, and the rotary turning rake is arranged on one side of the suspension rake through a rotary lifting device.

[0031] Preferably, the angle between the blade of the rake and the metal pipe is an acute angle, and the direction of the blade of the rake is consistent with the front driving direction of the tractor.

[0032] Preferably, the angle between the blade of the rake and the metal tube is 30° to 60°.

[0033] Preferably, the angle between the blade of the rake and the metal tube is 45°.

[0034] Furthermore, the rotary lifting device includes: a rotary lifting mechanism and a rotary lifting hydraulic assembly; the rotary lifting mechanism can be rotatably arranged on the top of the lifting bracket; the rotary lifting hydraulic assembly is arranged above the lifting bracket and connected to the rotary turning rake, and is used to flip the rotary turning rake around the floating rake.

[0035] Preferably, the lifting rod is composed of a hydraulic cylinder.

[0036] Furthermore, a turning connection mechanism is provided between the suspension rake and the rotary turning rake, and the rotary turning rake can rotate around the suspension rake through a rotary lifting device.

[0037] Preferably, the rotary rake and the suspended rake have the same structure.

[0038] A method for using an agricultural water floating harrow, the method comprising:

[0039] L1: Transport the floating harrow to a paddy field with appropriate water volume, adjust the lifting rod extension and retraction by adjusting the hydraulic output system of the tractor, so as to balance the floating harrow and adjust the suspended harrow to a suitable working height;

[0040] L2: According to the terrain and weed distribution in the paddy field, the lifting hydraulic assembly is extended and retracted by adjusting the hydraulic system of the tractor, so that the specific position of the suspended harrow is controlled through the flexible connector, so that the suspended harrow forms a suitable angle of "high in front and low in the back", so that the harrow blade of the suspended harrow sinks into the mud;

[0041] L3: The tractor is turned on to drive the suspended harrow to plow the land. The soil and water of the paddy field are mixed and plowed into mud by the suspended harrow, and the weeds are cut and removed by the harrow.

[0042] L4: When there is straw in the paddy field, the tractor is turned on to drive the suspended harrow to plow the land multiple times, and the working angle of the suspended harrow is controlled by controlling the flexible connector. The suspended harrow presses the straw multiple times and finally presses it into the mud.

[0043] L5: After the paddy field work is completed, the lifting hydraulic assembly is retracted by adjusting the tractor's hydraulic system, thereby pulling up the suspended harrow through the flexible connector, and then the tractor is driven out of the paddy field.

[0044] A farming method using an agricultural water floating harrow, the farming method comprising:

[0045] S1: transport the floating harrow to a paddy field with appropriate water volume, and control the height of the floating harrow through the suspension device so that the harrow blade of the floating harrow sinks into the mud;

[0046] S2: According to the terrain, weed distribution and remaining straw in the paddy field, the working angle of the suspended harrow is adjusted by lifting the hydraulic assembly;

[0047] S3: Turn on the tractor to drive the suspended harrow to plow the land, cut off and press weeds and straw into the soil, and level the surface;

[0048] S4: After 3 to 5 days, the soil, straw and weeds in the paddy field have softened and hydrolyzed, and the tractor is turned on again to drive the suspended harrow to plow the land for the second time, and the soil and stems and leaves of weeds that have not yet been hydrolyzed and emulsified are plowed and hydrolyzed and emulsified, and the surface is leveled;

[0049] S5: After 3 to 5 days, the tractor is turned on again to drive the suspended harrow to plow the land for the third time, which can basically soften and hydrolyze the soil, straw and weeds in the paddy field, and the paddy field can be plowed and leveled.

[0050] Furthermore, during step S3, the depth of the rake blade of the suspended rake sunk into the soil is 5 to 15 centimeters; during steps S4 and S5, the depth of the rake blade of the suspended rake sunk into the soil is 10 to 20 centimeters.

[0051] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0052] ① Suspend the paddy field with the suspended harrow through the flexible connector to ensure consistent tillage depth;

[0053] The tractor is connected to the frame, the frame is connected to the top of the suspension device, and the suspension device is softly connected to the floating harrow through a flexible connector. The soft connection design enables the floating harrow to plow on paddy fields with different heights, bumps, etc., avoiding the impact of the tractor's bumps on the plowing depth caused by the hard connection, resulting in different depths of the plowed paddy fields, thereby ensuring consistent plowing depths, reducing the occurrence of missed harrows, and improving work quality and efficiency. At the same time, the buoyancy of the floating harrow reduces the friction between the harrow and the surface, and the floating harrow works by suspending on the water surface. The floating harrow and the tractor move in the same straight line, and the tractor's power has no invalid component force, which effectively improves the tractor's energy efficiency.

[0054] ② The suspension device is softly connected to the suspension harrow through a flexible connector, which can be used to slightly rotate the suspension harrow;

[0055] According to the specific working conditions, the angle of the suspended harrow can be adjusted by stretching the flexible connector, which can more accurately control the depth and width of the cultivated land and meet the specific requirements of different crop plantings for land flatness and looseness.

[0056] ③ Connect the frame to the top of the suspension device, which can be used to adjust the floating rake to flip and lift;

[0057] When a tractor pulls a suspended harrow on a normal road, raising the suspended harrow can prevent the harrow teeth from contacting the road surface, reducing unnecessary wear and tear. At the same time, it prevents the suspended harrow from damaging the hard road surface and extends the service life of the suspended harrow and the road.

[0058] ④ The rotary turning harrow is suspended on one side of the suspended harrow through a rotary lifting device to increase the tillage area;

[0059] Specifically, the rotary lifting mechanism can be rotatably set and connected to the top of the lifting bracket, and the rotary lifting hydraulic assembly is arranged above the lifting bracket and connected to the rotary turning harrow. The rotary turning harrow is turned and lifted around the floating harrow through the operation of the rotary lifting hydraulic assembly, preventing the rotary turning harrow and the floating harrow from being too long and lifting the front of the tractor, thereby improving space utilization and reducing the potential risk of damage to the surrounding environment and other equipment during transportation.

[0060] ⑤ Directly connect with the suspended rake through flexible connectors to maximize the pulling force;

[0061] Since the harrow of a general rotary tiller performs rotary tillage, the power of the rotary tiller is decomposed into the thrust between the harrow and the soil, and the friction between the harrow and the soil, which produces useless friction components and leads to increased energy consumption; however, the utility model adopts a tractor to be softly connected with the suspended harrow through a flexible connecting piece, and the traction force of the tractor is converted into the pulling force of the suspended harrow movement, thereby maximizing the pulling force, thereby reducing useless components and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0063] Figure 1 It is a first structural schematic diagram of an agricultural water floating harrow;

[0064] Figure 2 A second structural schematic diagram of an agricultural water floating harrow;

[0065] Figure 3 It is a top view of a floating agricultural water harrow;

[0066] Figure 4 It is the structural schematic diagram of the suspension rake;

[0067] Figure 5 Schematic diagram of the structure assembled with hollow tube and rake;

[0068] Figure 6 It is a schematic diagram of the structure of the coordination between the suspension device and the flexible connection piece;

[0069] Figure 7 It is a schematic diagram of the structure of the suspension device cooperating with the suspension harrow and the rotary harrow;

[0070] Figure 8 It is a structural schematic diagram of Example 2;

[0071] Fig. 9 This is a schematic diagram of the structure of Example 3.

[0072] Among them, 1. tractor; 2. frame; 201. lifting rod; 202. support rod; 203. connecting frame; 3. suspension device; 301. lifting bracket; 302. rotating mechanism; 303. lifting hydraulic assembly; 4. floating rake; 401. floating plate; 402. rake blade; 403. enclosure; 404. connecting seat; 5. flexible connector; 6. rotary rake; 7. rotary lifting device; 701. rotary lifting mechanism; 702. rotary lifting hydraulic assembly; 8. flip connection mechanism; 9. scraper; 10. U-bolt. DETAILED DESCRIPTION

[0073] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the described embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0074] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0075] Example 1

[0076] like Figure 1-7 As shown, this embodiment discloses an agricultural water floating harrow, comprising: a tractor 1, a frame 2, a suspension device 3 and a floating harrow 4;

[0077] The frame 2 is connected to the rear of the tractor 1 and is used to support the suspension device 3;

[0078] The suspension device 3 is connected to the frame 2 and is used for suspending, lifting and driving the floating rake 4;

[0079] The suspended harrow 4 is connected to the suspension device 3 via a flexible connecting piece 5 and is used for harrowing operations on farmland;

[0080] The floating rake 4 includes a floating plate 401 and a plurality of rake blades 402 . The floating plate 401 is provided with a plurality of rake blades 402 at intervals along the length direction and the width direction.

[0081] As a specific embodiment, the suspension device 3 includes: a lifting bracket 301, a rotating mechanism 302 symmetrically arranged on the lifting bracket 301, and a lifting hydraulic component 303; the rotating mechanism 302 is rotatably arranged and connected to the top of the lifting bracket 301; the lifting hydraulic component 303 is arranged above the lifting bracket 301 and connected to the floating rake 4, and is used to lift the floating rake 4.

[0082] Specifically, the flexible connector 5 includes a steel wire rope, and the rotating mechanism 302 is a "7"-shaped square tube assembly. One end of the "7"-shaped square tube is rotatably connected to the lifting bracket 301, and the "7"-shaped square tube is connected to the floating rake 4 through the steel wire rope; the "7"-shaped rotating mechanism 302 is driven to rotate around the lifting bracket 301 by the hydraulic telescopic rod of the lifting rod 201, so that the steel wire rope is stretched to rotate the floating rake 4;

[0083] As a specific implementation, the suspension board 401 is formed by a plurality of suspension plates with buoyancy that are rigidly connected to each other. The suspension plates are sealed metal tubes. The suspension plates are provided with a plurality of rakes 402 at intervals along the length. The plurality of sealed metal tubes are rigidly connected to each other to form the suspension board 401.

[0084] A shroud 403 is also provided on the suspension rake 4, and the shroud 403 is provided at the top edge of the suspension plate 401;

[0085] The included angle between the blade of the rake 402 and the metal pipe is an acute angle of 45°, and the direction of the blade of the rake 402 is consistent with the front driving direction of the tractor 1.

[0086] Specifically, the rake blades 402 on the suspended harrow 4 are very different from the rake teeth of a general field leveler. The rake blades 402 of the suspended harrow 4 of this embodiment are vertically arranged rake blades, not the horizontally arranged rake teeth of a field leveler. When plowing, the suspended harrow 4 of this patent can pull, cut and shred straw and weeds, while the rake teeth of a field leveler can only scrape the mud flat. Their shapes and working principles are completely different.

[0087] Specifically, a panel 403 is provided on the top of the suspended rake 4. When the rake blade 402 needs to be inserted deeper into the soil, bagged mud or barreled water can be used as a counterweight on the top of the suspended rake 4 to allow the rake blade 402 to be inserted deeper into the soil.

[0088] Specifically, the overall weight of the suspended rake 4 can be 0.5 to 2 tons. Since the buoyancy of the sealed metal tube is higher than the overall weight of the suspended rake 4, when the buoyancy and the overall weight are offset, the rake blade 402 of the suspended rake 4 is partially sunk into the mud, and the suspended board 401 floats on the water. This arrangement allows the suspended rake 4 to float in the water and work.

[0089] Specifically, the floating harrow floats on the paddy field through a flexible connector to ensure consistent tillage depth.

[0090] As a specific implementation method, the overall weight of the suspension rake 4 is 1 to 3 tons, and after the buoyancy of the sealed metal tube partially offsets the overall weight of the suspension rake 4, the rake blade 402 of the suspension rake 4 is just partially sunk into the mud;

[0091] The suspension plate is a sealed metal tube, and a plurality of sealed metal tubes are rigidly connected to each other on the width side to form a suspension plate.

[0092] Specifically, the metal tube of the suspension plate 401 is a square tube, and a plurality of sealed metal tubes are rigidly connected to each other on the width side to form the suspension plate 401, and the rake 402 is installed in the length direction of the sealed metal tube by welding;

[0093] The overall weight of the suspended rake 4 is 3 to 6 tons. After the buoyancy of the sealed metal tube partially offsets the overall weight of the suspended rake 4, the rake blade 402 of the suspended rake 4 just sinks into the mud.

[0094] Specifically, the suspension plate 401 is formed by a plurality of sealed metal tubes rigidly connected to each other, and the sealed metal tubes are provided with 80 to 120 rake blades 402 at intervals along the length, and 8 to 12 sealed metal tubes are rigidly connected to each other to form a suspension rake 4;

[0095] According to specific farming needs, the height of the suspended harrow 4 from the paddy field is controlled by the suspension device 3, so as to adjust the depth of the harrow blade 402 sunk into the soil. According to the characteristics that the root system of rice mainly grows within 25 cm and the needs of weed control and paddy field plowing, the depth of the harrow blade 402 of the suspended harrow 4 sunk into the soil is first controlled to 12 to 14 cm for weed control, and then the depth of the harrow blade 402 sunk into the soil is controlled to 22 to 24 cm for paddy field plowing;

[0096] Considering that the roots of weeds are relatively shallow, they may be mainly concentrated in the range of a few centimeters to more than ten centimeters on the soil surface. When killing weeds, a tillage depth of 12 to 14 centimeters can remove most of the weeds, and the slurrying of paddy field sowing is also sufficient at 12 to 14 centimeters;

[0097] When the paddy field is plowed, the suspended harrow 4 will sink to a height of 5 to 10 cm below the water surface during paddy field operation. The harrow blade 402 length plus the harrow sinking height can obtain a harrowing depth of 27 to 34 cm. Since the plowed paddy field has a large water content, it will sink 3 to 5 cm after the water dries up. The actual plowing depth is 22 to 31 cm, reaching the most suitable rooting depth for the rice root system, reducing ineffective cultivation and damage to the paddy field soil layer.

[0098] As a specific implementation, a scraper 9 is further provided at the front end of the floating rake 4; the scraper 9 is connected to the suspension device 3 through a flexible connector to drive the scraper 9 to move up and down.

[0099] During tillage operation, the silt produced by the tillage movement easily enters the top of the suspended harrow 4, increasing the weight of the suspended harrow 4, thereby affecting the tillage depth, and further possibly destroying the structure of the natural layer of the soil.

[0100] Specifically, the scraper 9 is also used to flatten the uneven mud field and scrape the mud in the high place to the low place. Because the length of the suspended harrow 4 is generally 6 to 12 meters, and the suspended harrow 4 floats on the water, the scraper 9 can use the buoyancy of water to scrape a large amount of loosened mud to the low place to achieve the purpose of flattening the field.

[0101] Specifically, the front end of the suspension rake 4 is provided with a notch, and the scraper 9 is also provided with a notch. The notch of the scraper 9 is staggered and connected with the notch of the front end of the suspension rake 4, and the scraper 9 can be raised and lowered in the vertical direction;

[0102] Specifically, the other suspension device 3 is also connected to the scraper plate 9 through a flexible connector 5. The height of the scraper plate 9 can be adjusted according to the thickness of the silt layer in the paddy field or the depth changes in different paddy field areas. The scraper plate 9 can be used to prevent the silt from floating on the top of the rake 4, ensuring that the suspended rake 4 is always close to the paddy field for plowing work, thereby improving the plowing efficiency.

[0103] Specifically, the scraper blade 9 is also used to scrape the uneven mud field flat and level the mud field.

[0104] As a specific implementation method, a row of rake blades are connected to the front sides of the suspended rake 4 through U-bolts 10. The U-bolts 10 connect the suspended rake 4 to the rake blades in a "riding style". A scraper 9 is installed between the suspended rake 4 and the row of rake blades in front of the suspended rake. The suspended rake 4 and the rake blades are tightly combined through the "riding style" U-bolt 10 connection method, which can facilitate subsequent maintenance.

[0105] Specifically, a row of square tube rake blade groups is arranged in front of the floating rake 4, and a mud scraper 9 is installed in the middle of the square tube rake blade groups.

[0106] As a specific implementation method, the operation of each hydraulic component is controlled by a switch combination.

[0107] Specifically, the hydraulic system of the tractor 1 includes three groups of hydraulic output ends, one group of hydraulic output ends is connected to the rotary lifting hydraulic component 702, and the rotary turning harrow 6 can be turned over and folded around the floating harrow 4 through the rotary lifting hydraulic component 702; one group of hydraulic output ends is connected to the lifting hydraulic component 303 of the lifting and lowering scraper blade 9, and the height of the scraper blade 9 can be adjusted through the suspension device 3; one group of hydraulic output ends is connected to the lifting hydraulic component 303 of the front part of the floating harrow 4, and the floating harrow 4 can be adjusted to be turned over and raised through the suspension device 3.

[0108] As a specific implementation, a bracket is provided on the floating rake 4 , the bracket is connected to a hydraulic component 303 , and the hydraulic component 303 is connected to the scraper blade 9 for lifting and lowering the scraper blade 9 .

[0109] Specifically, the scraper blade 9 can also be connected to the hydraulic component 303 through a gantry bracket. The scraper blade 9 can also be installed with two gantries on the floating rake 4, and the hydraulic component 303 is connected to the gantries. The scraper blade is lifted and lowered by the hydraulic component 303, making the connection more flexible.

[0110] Specifically, the scraper blade 9 can also be installed with two gantries on the floating rake 4, and hydraulic cylinders are installed on the gantries to lift and lower the scraper blade 9 through the hydraulic cylinders. Such hard connection is more flexible.

[0111] As a specific implementation, the suspension harrow 4 can also be split. When the total width of the suspension harrow 4 exceeds 4 meters and the width of the walking road is limited, the suspension harrow 4 can be split into two halves and transported away by the tractor 1 respectively.

[0112] As a specific implementation method, the suspension device 3 is also connected to the rotary turning harrow 6 through a chain. The chain connection of the rotary turning harrow 6 can effectively reduce the downward gravity of the rotary turning harrow 6, and prevent the rotary turning harrow 6 from being damaged by the overweight of the rotary turning harrow 6. The chain can also limit the turning angle of the rotary turning harrow 6, and prevent the rotary turning harrow 6 from being too low and contacting the ground more deeply, resulting in straw and weeds stuck in front of the rotary turning harrow 6 during plowing work.

[0113] A turning connection mechanism 8 is provided between the suspension rake 4 and the rotary turning rake 6, and the rotary turning rake 6 can rotate around the suspension rake 4 through a rotary lifting device;

[0114] Specifically, the suspension device 3 is also connected to the lifted rotary turning rake 6 through a chain to prevent the rotary turning rake 6 from shifting due to the downward gravity for a long time, thereby avoiding damage to the overturning connection mechanism 8 due to the excessive weight of the rotary turning rake 6.

[0115] like Figure 4 As shown, as a specific embodiment, the suspension rake 4 is provided with a plurality of connection seats 404, the flexible connection rope 5 is provided with a connection hook, and the flexible connection rope 5 is detachably matched with the connection seat of the suspension rake 4 through the connection hook; the suspension rake 4 is formed by splicing a plurality of suspension plates 401, and two suspension rakes 4 can be disassembled by folding in half;

[0116] Specifically, the rotary rake 6 is also provided with a plurality of connecting seats 404, and the flexible connecting rope 5 can also be detachably matched with the connecting seat of the rotary rake 6 through the connecting hook; the rotary rake 6 is also formed by splicing a plurality of plates, and two rotary rakes 6 can be disassembled by folding in half;

[0117] Specifically, when the suspended rake 4 is stuck in the paddy field mud and cannot be transported out, the suspended rake 4 is folded in half to disassemble multiple short rake plates, which are then connected to the short rake plate connecting seat 404 through the flexible connecting rope 5 through the connecting hook, and then transported out separately. The resistance of each short rake plate of the suspended rake 4 is significantly reduced and it is easier to be dragged, which can effectively solve the problem that the suspended rake 4 is difficult to drag out in the paddy field mud. It is a practical and effective solution.

[0118] Example 2

[0119] like Figure 1-8 As shown, this embodiment discloses an agricultural water floating harrow, comprising: a tractor 1, a frame 2, a suspension device 3 and a floating harrow 4;

[0120] The frame 2 is connected to the rear of the tractor 1 and is used to support the suspension device 3;

[0121] The suspension device 3 is connected to the frame 2 and is used for suspending, lifting and driving the floating rake 4;

[0122] The suspended harrow 4 is connected to the suspension device 3 via a flexible connecting piece 5 and is used for harrowing operations on farmland;

[0123] The floating rake 4 includes a floating plate 401 and a plurality of rake blades 402 . The floating plate 401 is provided with a plurality of rake blades 402 at intervals along the length direction and the width direction.

[0124] Specifically, the tractor 1 is connected to the suspended harrow 4 through the suspension device 3. When tilling, only the soil layer that needs to be tilled is plowed, and the harrow blade 402 of the suspended harrow 4 is sunk into the tilled soil layer. The tractor 1 pulls the suspended harrow 4 to plow the land. Since the tilled soil layer is rich in organic matter, it can be quickly decomposed and emulsified into water with the help of water. The watery field mud is plowed into a horizontal mud field by the wide and long suspended harrow 4. The emulsified field mud can also achieve the effect of horizontal flow within a certain range, making the paddy field raked flatter. The design of softly connecting the suspended harrow 4 to the back of the tractor 1 enables the suspended harrow 4 to maintain a constant tillage depth on different paddy fields, resulting in different depths of the tilled paddy fields, thereby ensuring consistent tillage depth and improving work quality and efficiency.

[0125] As a specific implementation, the frame 2 includes: a lifting rod 201, a support rod 202 and a connecting frame 203;

[0126] The lifting rod 201 is arranged between the tractor 1 and the suspension device 3, and the hydraulic input end of the lifting rod 201 and the lifting hydraulic assembly 303 is connected to the hydraulic system of the tractor 1 through a pipeline;

[0127] The support rod 202 is symmetrically arranged below the lifting rod 201 and is used to suspend the suspension device 3;

[0128] The telescopic rod of the lifting rod 201 is connected to the lifting bracket 301 through the connecting frame 203;

[0129] The lifting rod 201 can be rotatably installed at the rear of the tractor 1 , and the lifting rod 201 can be rotatably connected to the top of the connecting frame 203 .

[0130] Specifically, the lifting rod 201 is composed of a hydraulic cylinder.

[0131] Specifically, the tractor 1 is connected to the frame 2 at three points by a lifting rod 201 and two supporting rods 202 .

[0132] Specifically, the frame 2 is connected to the top of the suspension device 3, which can be used to adjust the floating rake 4 to flip and lift;

[0133] When the tractor 1 pulls the suspended harrow 4 and travels on a normal road, raising the suspended harrow 4 can prevent the harrow teeth from contacting the road surface, reduce unnecessary wear, and prevent the suspended harrow 4 from damaging the hard road surface, thereby extending the service life of the suspended harrow 4 and the road; since the suspended harrow 4 contacts the ground and increases the driving resistance, raising the suspended harrow 4 can also reduce this unnecessary resistance, making the tractor 1 travel more smoothly, improving the fuel efficiency of the tractor 1, and also improving the driving safety of the tractor 1.

[0134] Specifically, the floating rake 4 and the rotary turning rake 6 can be disassembled, and after being disassembled, the floating rake 4 and the rotary turning rake 6 can be hoisted and transported away through a frame.

[0135] Example 3

[0136] like Figure 1-9 As shown, this embodiment discloses an agricultural water floating harrow, comprising: a tractor 1, a frame 2, a suspension device 3 and a floating harrow 4;

[0137] The frame 2 is connected to the rear of the tractor 1 and is used to support the suspension device 3;

[0138] The suspension device 3 is connected to the frame 2 and is used for suspending, lifting and driving the floating rake 4;

[0139] The suspended harrow 4 is connected to the suspension device 3 via a flexible connecting piece 5 and is used for harrowing operations on farmland;

[0140] The floating rake 4 includes a floating plate 401 and a plurality of rake blades 402 . The floating plate 401 is provided with a plurality of rake blades 402 at intervals along the length direction and the width direction.

[0141] As a specific implementation, the rotating mechanism 302 is a "7"-shaped square tube assembly, one end of the "7"-shaped square tube is rotatably connected to the lifting bracket 301, and the two end surfaces of the "7"-shaped square tube are respectively connected to the symmetrical two end surfaces of the floating rake 4 through the flexible connecting rope 5; the hydraulic telescopic rod of the lifting rod 201 drives the "7"-shaped rotating mechanism 302 to rotate around the lifting bracket 301, thereby stretching the flexible connecting rope 5 to rotate the floating rake 4;

[0142] Specifically, the rotating and lifting movable end of the rotating mechanism 302 is connected to one end of the floating rake 4 through a steel wire rope, and the bottom fixed end of the rotating mechanism 302 is connected to the other end of the steel wire rope through a flexible connecting rope 5;

[0143] During operation, the movable end of the rotating mechanism 302 is lifted upward, thereby pulling the wire rope to turn the floating rake 4 around the flexible connecting rope 5 at the bottom fixed end.

[0144] When the tillage force needs to be increased, the blade group of the suspension harrow 4 is increased again, but the increase of the blade group will increase the width of the suspension harrow 4. When the suspension harrow 4 is lifted, the suspension harrow 4 is easy to press the head of the tractor 1 up.

[0145] As a specific implementation, the edge of the suspension rake 4 is detachably connected with a rotary turning rake 6, and the rotary turning rake 6 is arranged on one side of the suspension rake 4 through a rotary lifting device 7;

[0146] The rotary lifting device 7 includes: a rotary lifting mechanism 701 and a rotary lifting hydraulic assembly 702; the rotary lifting mechanism 701 can be rotatably arranged on the top of the lifting bracket 301; the rotary lifting hydraulic assembly 702 is arranged above the lifting bracket 301 and connected to the rotary turning rake 6, and is used to turn the rotary turning rake 6 around the floating rake 4;

[0147] A turning connection mechanism 8 is provided between the floating rake 4 and the rotary turning rake 6 , and the rotary turning rake 6 can rotate around the floating rake 4 through a rotary lifting device 7 .

[0148] Specifically, when the rotary harrow 6 is lifted, the hydraulic telescopic rod of the rotary lifting hydraulic assembly 702 drives the rotary lifting mechanism 701 to rotate around the lifting bracket 301, and the lifting rod of the rotary lifting mechanism 701 lifts the rotary harrow 6 at the rear. Specifically, the rotary harrow 6 is flipped and lifted around the floating harrow 4 through the operation of the rotary lifting hydraulic assembly 702, preventing the rotary harrow and the floating harrow from being too long and lifting the front of the tractor, thereby improving space utilization and reducing the potential risk of damage to the surrounding environment and other equipment during transportation.

[0149] The agricultural water floating harrow tiller of the utility model also has the function of an anti-sinking machine. Specifically, a 7-meter-long and 1.8-ton floating harrow 4 is connected to a 120-horsepower tractor 1. The floating harrow 4 is suspended on the paddy field to work. The water floating harrow tiller reduces the weight of the floating harrow 4, further reduces the possibility of the paddy field sinking, thereby reducing energy consumption, and can also reduce the weight of the water floating harrow tiller, effectively increasing the forward power of tilling the field.

[0150] In order to ensure that the tractor 1 can be safely evacuated when the water-floating harrow 4 is stuck, a quick release structure is adopted in the connection design between the floating harrow 4 and the flexible connector 5. The quick release structure adopts a snap connection. Since the floating harrow 4 can float on the water to work, when the floating harrow 4 sinks into the paddy field, the snap joint of the flexible connector 5 is unfastened from the floating harrow 4, thereby disconnecting the flexible connector 5 and the floating harrow 4, allowing the tractor 1 to move freely and leave the dangerous area.

[0151] As a specific implementation method, a plurality of spare movable brackets can be further arranged behind the frame, and the spare movable brackets are connected to the rotary turning rake 6 through a soft connecting chain, which can effectively reduce the burden of the turning connection mechanism 8 and can also be more stable when turning.

[0152] Example 4

[0153] A method for using the agricultural water floating harrowing machine of embodiment 1 or 2, the method comprising:

[0154] L1: transport the water floating harrow to a paddy field with a suitable amount of water, adjust the extension and retraction of the lifting rod 201 by adjusting the hydraulic output system of the tractor, so as to balance the water floating harrow, thereby adjusting the suspended harrow 4 to a suitable working height;

[0155] L2: According to the topography and weed distribution in the paddy field, the hydraulic system of the tractor 1 is adjusted to extend and retract the lifting hydraulic assembly 303, thereby controlling the specific position of the suspended harrow 4 through the flexible connector 5, so that the suspended harrow 4 forms a suitable angle of "high in front and low in the back", so that the harrow blade 402 of the suspended harrow 4 is partially sunk into the mud;

[0156] L3: The tractor 1 is turned on to drive the floating harrow 4 to plow the land, the floating harrow 4 mixes the soil and water of the paddy field into mud, and the harrow 402 is used to harrow and kill the weeds;

[0157] L4: When there is straw in the paddy field, the tractor 1 is turned on to drive the suspended harrow 4 to plow the land multiple times, and the working angle of the suspended harrow 4 is controlled by controlling the flexible connector 5. The suspended harrow 4 presses the straw multiple times and finally presses it into the mud;

[0158] L5: After the paddy field work is finished, the lifting hydraulic assembly 303 is retracted by adjusting the hydraulic system of the tractor 1, thereby pulling up the floating harrow 4 through the flexible connecting member 5, and then the tractor 1 is driven out of the paddy field.

[0159] Specifically, in step L2, the flexible connector 5 can control the specific position of the floating rake 4.

[0160] The specific position of the suspended harrow 4 is controlled to make the suspended harrow 4 form a suitable angle of "high in front and low in the back", so that the harrow blades 402 of the suspended harrow 4 can be partially sunk into the mud or completely lifted up. The purpose of lifting the suspended harrow 4 is to allow straw and weeds to smoothly enter the bottom of the suspended harrow 4 to prevent accumulation; after the straw smoothly enters the suspended harrow 4, it is repeatedly cut and raked by multiple groups of harrow blades 402 to mix the straw and mud to accelerate fermentation and decomposition.

[0161] Specifically, in step L4, the floating harrow 4 and the rotary harrow 6 each have multiple rows and groups of harrow blades 402. When the tractor 1 passes by, the number of rows of harrow blades 402 is equal to the number of times the paddy field is harrowed;

[0162] Specifically, the suspended harrow 4 and the rotary harrow 6 press the straw by harrowing for many times, and finally press it into the mud.

[0163] Considering that after the rice in the paddy field is harvested, straw and weeds may be left, in step L2, the hydraulic cylinder is used to select the lifting part of the suspended harrow 4 to form a "high front and low back" inclined model, which can effectively prevent straw and weed debris from getting stuck in front of the suspended harrow 4 when harrowing the land; specifically, the suspended harrow 4 can also be manually adjusted to form a "high front and low back" inclination angle.

[0164] Example 5

[0165] A farming method using the agricultural water floating harrowing machine of embodiment 1 or 2, the farming method comprising:

[0166] S1: driving the agricultural floating harrow into the paddy field, and manually adjusting the water level in the paddy field so that the harrow blade 402 of the floating harrow 4 partially sinks into the mud;

[0167] S2: According to the topography, weed distribution and straw residue in the paddy field, the working angle of the suspended harrow 4 is adjusted by lifting the hydraulic assembly 303;

[0168] S3: Turn on the tractor 1 to drive the suspended harrow 4 to plow the land and kill weeds and straw;

[0169] S4: After 3 to 5 days, the soil and weeds in the paddy field have softened and hydrolyzed, and the tractor 1 is turned on again to drive the suspended harrow 4 to perform a second plowing and ploughing, and the soil and stems and leaves of the weeds that have not yet been hydrolyzed and emulsified are plowed and hydrolyzed and emulsified;

[0170] S5: After 3 to 5 days, the tractor 1 is turned on again to drive the suspended harrow 4 to perform the third ploughing, so that the mud and weeds in the paddy field can be basically softened and hydrolyzed, and the paddy field can basically achieve horizontal flow in a small area.

[0171] Specifically, in step S3, the working form of the floating rake 4 is cutting, so the power consumption is small. Under the premise of low power loss, the working efficiency can be improved by lengthening and widening the floating rake 4.

[0172] Specifically, the efficiency of harrowing the field three times by using a water floating harrow can be greatly improved. The first harrowing can kill weeds and turn the soil, allowing microorganisms to ferment and decompose the soil and weeds with the help of water. After 3 to 5 days, a large part of the soil and weeds have been softened and hydrolyzed.

[0173] Then carry out the second plowing and harrowing, which can basically plow and hydrolyze the soil and stems and leaves of weeds that have not yet been hydrolyzed and emulsified;

[0174] After 3 to 5 days, carry out the third ploughing and harrowing, so that the mud and weeds in the field are basically like water.

[0175] Basically reach the horizontal flow of mud field.

[0176] As a specific implementation manner, during step S3, the depth of the rake blade 402 of the suspended rake 4 sunk into the soil is 5 to 15 centimeters; during steps S4 and S5, the depth of the rake blade 402 of the suspended rake 4 sunk into the soil is 15 to 30 centimeters.

[0177] Considering that the roots of weeds are relatively shallow, they may be mainly concentrated in the range of a few centimeters to ten centimeters on the soil surface. In step S3, the depth of the rake blade of the suspended rake sinking into the soil is 5 to 15 centimeters, which can achieve tillage and weed control. The slurrying of paddy field sowing is also sufficient to be completed at this tillage depth.

[0178] Considering that the root system of rice mainly grows within 25 cm, the depth of the rice stalks in the paddy field after harvesting is also within 25 cm; during steps S4 and S5, the rake blade 402 of the suspended rake 4 is sunk into the soil to a depth of 20 to 25 cm, which can ensure that most of the straw can be pressed into the paddy field for microbial decomposition when the straw is plowed and cut.

[0179] How it works

[0180] When tilling, only the soil layer that needs to be tilled is plowed, and the rake blade 402 of the suspended harrow 4 is sunk into the tilled soil layer. The suspended harrow 4 is pulled by the tractor 1 to plow the land. Since the tilled soil layer is rich in organic matter, it can be quickly decomposed and emulsified into muddy water with the cooperation of water. The muddy field mud is plowed into a horizontal mud field by the wide and long suspended harrow 4. The emulsified field mud can also achieve the effect of horizontal flow within a certain range, making the paddy field raked flatter. The design of softly connecting the suspended harrow 4 to the back of the tractor 1 enables the suspended harrow 4 to maintain a constant tillage depth on different paddy fields, resulting in different depths of the tilled paddy fields, thereby ensuring consistent tillage depth and improving work quality and efficiency.

[0181] When the tractor 1 pulls the floating harrow 4 and travels on a normal road, raising the floating harrow 4 can prevent the harrow teeth from contacting the road surface, reduce unnecessary wear, and prevent the floating harrow 4 from damaging the hard road surface, thereby extending the service life of the floating harrow 4 and the road;

[0182] When lifting the rotary harrow 6, the hydraulic telescopic rod of the rotary lifting hydraulic assembly 702 drives the rotary lifting mechanism 701 to rotate around the lifting bracket 301, and the lifting rod of the rotary lifting mechanism 701 lifts the rotary harrow 6 at the rear. Specifically, the rotary harrow 6 is turned and lifted around the floating harrow 4 through the operation of the rotary lifting hydraulic assembly 702, preventing the rotary harrow and the floating harrow from being too long and lifting the front of the tractor, thereby improving space utilization and reducing the potential risk of damage to the surrounding environment and other equipment during transportation.

[0183] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An agricultural water floating harrow, characterized in that: include: A tractor (1), a frame (2), a suspension device (3) and a suspension harrow (4); The frame (2) is connected to the rear of the tractor (1) and is used to support the suspension device (3); The suspension device (3) is connected to the frame (2) and is used to suspend, lift and drive the suspended rake (4); The suspended harrow (4) is connected to the suspension device (3) via a flexible connecting piece (5) and is used for harrowing operations on farmland; The suspended harrow (4) comprises a suspended plate (401) and a plurality of harrow blades (402), wherein the suspended plate (401) is provided with a plurality of harrow blades (402) at intervals along the length direction and the width direction; the suspension device (3) comprises: a lifting bracket (301), a rotating mechanism (302) symmetrically arranged on the lifting bracket (301), and a lifting hydraulic assembly (303); the rotating mechanism (302) is rotatably arranged and connected to the top of the lifting bracket (301); the lifting hydraulic assembly (303) is arranged above the lifting bracket (301) and connected to the suspended harrow (4) for lifting the suspended harrow (4); the frame (2) comprises: a lifting rod (201), a support rod (202), and a connecting frame (203); The lifting rod (201) is arranged between the tractor (1) and the suspension device (3), and the lifting rod (201) and the lifting hydraulic assembly (303) are connected to the hydraulic system of the tractor (1) through a pipeline; the support rod (202) is symmetrically arranged below the lifting rod (201) and is used to suspend the suspension device (3); The telescopic rod of the lifting rod (201) is connected to the lifting bracket (301) via a connecting frame (203).

2. The agricultural water floating tiller according to claim 1, characterized in that: The suspension plate (401) is formed by a plurality of suspension plates with buoyancy that are rigidly connected to each other, and the suspension plate tube is provided with a plurality of rakes (402) at intervals along the length.

3. The agricultural water floating tiller according to claim 1, characterized in that: The front end of the floating rake (4) is also provided with a scraper (9); the scraper (9) is connected to the suspension device (3) via a flexible connection piece, so as to drive the scraper (9) to move up and down.

4. The agricultural water floating tiller according to claim 1, characterized in that: The edge of the suspension rake (4) is detachably connected to a rotary turning rake (6), and the rotary turning rake (6) is arranged on one side of the suspension rake (4) via a rotary lifting device (7).

5. The agricultural water floating tiller according to claim 4, characterized in that: The rotary lifting device (7) comprises: a rotary lifting mechanism (701) and a rotary lifting hydraulic assembly (702); the rotary lifting mechanism (701) can be rotatably arranged on the top of the lifting bracket (301); the rotary lifting hydraulic assembly (702) is arranged above the lifting bracket (301) and connected to the rotary turning rake (6) for turning the rotary turning rake (6) around the floating rake (4).

6. The agricultural water floating tiller according to claim 2, characterized in that: The suspension plate is a sealed metal tube, and a plurality of sealed metal tubes are rigidly connected to each other at the width side to form a suspension plate.

7. The agricultural water floating tiller according to claim 6, characterized in that: The overall weight of the suspended rake (4) is 1 to 3 tons. After the buoyancy of the sealed metal tube partially offsets the overall weight of the suspended rake (4), the rake blade (402) of the suspended rake (4) is partially sunk into the mud.

8. The agricultural water floating tiller according to claim 4, characterized in that: A turning connection mechanism (8) is provided between the suspension rake (4) and the rotary turning rake (6), and the rotary turning rake (6) can be rotated around the suspension rake (4) through a rotary lifting device.

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