Land preparation equipment for straw chopping, mixing, mulching and returning to the field

Abstract

The present invention relates to the technical field of agricultural machinery and equipment, and in particular to a land preparation device for straw chopping, mixing, mulching and returning to the field, comprising: a rotary tillage device disposed at the rear end of a frame body; a pair of first transmission shafts disposed in parallel at the bottom of the frame body, with the two ends of each first transmission shaft being rotatably connected to side plates on both sides of the frame body; a plurality of claw hooks are disposed on the circumferential side walls of the pair of first transmission shafts for grabbing crop straw; an assembly housing disposed at the bottom of the frame body and fixedly connected to the pair of side plates, with the pair of first transmission shafts located within the inner cavity of the assembly housing; and a drive device disposed on the frame body, the drive device being connected to the rotary tillage device and the pair of first transmission shafts. This device drives the pair of first transmission shafts to rotate in opposite directions, using the claw hooks to grab and separate crop straw in the cultivated soil, thereby resolving the problem of limited disassembly and separation effects of crop roots in the soil in existing land preparation machines.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery and equipment, and in particular to a land preparation device used for chopping, mixing, mulching and returning straw to fields. Background Art

[0002] Straw shredding, mixing, mulching and returning to the field land preparation equipment is driven by the tractor PTO, and coordinated with high-speed crushing, rotary tillage and burial modules to quickly cut the field straw into 3-5 cm fragments and evenly mix them into the soil at a depth of 10-20 cm. With the development of intelligent agricultural power machinery and precision sensing technology, land preparation equipment has further improved its operating efficiency and ecological benefits by integrating technical means such as the Internet of Things, artificial intelligence, and precise navigation. It has also enhanced its intelligent operating capabilities through data and automation technologies, achieving efficient resource utilization.

[0003] In the prior art, a Chinese invention patent with authorization announcement number CN118020421B discloses a land preparation machine for straw crushing, mixing, mulching and returning to the field, comprising a support frame, on which a mounting plate is fixedly mounted, and further comprising: a reverse moving seat 1 and a reverse moving seat 2, both of which are slidably connected to the bottom wall of the support frame through a clamping guide rail, and both of which are fixedly mounted with a crushing and separating plate, on which a plurality of conical teeth are distributed; and a straw splitting mechanism, which is respectively connected to the support frame, the reverse moving seat 1 and the reverse moving seat 2, wherein the straw splitting mechanism comprises a reverse pulling component and a dialing component.

[0004] However, during operation, the device disassembles and separates the clumped crop straws scattered on the ground by driving the crushing and separation plates to move laterally, and its effect on disassembling and separating the crop roots in the soil is limited. Summary of the Invention

[0005] In order to solve the technical problems existing in the prior art, an embodiment of the present invention provides a land preparation device for crushing, mixing, mulching and returning straw to the field, comprising:

[0006] The rotary tillage device is arranged at the rear end of the frame body and is used for rotary tilling the cultivated soil;

[0007] A pair of first transmission shafts are arranged in parallel at the bottom of the frame body, and both ends of each first transmission shaft are rotatably connected to the side plates on both sides of the frame body;

[0008] A plurality of claw hooks are provided on the circumferential side walls of the pair of first transmission shafts for grabbing crop straw;

[0009] An assembly shell is provided at the bottom of the frame body, the assembly shell is fixedly connected to a pair of side plates, a pair of first transmission shafts are located in the inner cavity of the assembly shell, and the bottom of the assembly shell adopts an open design;

[0010] The driving device is arranged on the frame body, connected to the rotary tillage device, and connected to a pair of first transmission shafts for driving the pair of first transmission shafts to rotate in opposite directions.

[0011] Furthermore, the claw hook includes:

[0012] A hook handle portion is fixedly arranged on a circumferential side wall of the first transmission shaft, and the hook handle portion is arranged along the radial direction of the first transmission shaft;

[0013] The hook portion is fixedly arranged at the end of the hook handle portion and is used to grab crop straw;

[0014] The hook blade portion is fixedly arranged on the hook handle portion and is used for cutting crop straw.

[0015] Furthermore, the device also includes:

[0016] A plurality of first assembly notches are formed on a side wall of one side of the assembly housing, any one of the first assembly notches is communicated with the inner cavity of the assembly housing, and any one of the claws provided on one of the first transmission shafts passes through one of the first assembly notches during the rotation of the pair of first transmission shafts;

[0017] A plurality of second assembly notches are provided on the side wall of the other side of the assembly housing, any one of the second assembly notches is in communication with the inner cavity of the assembly housing, and during the rotation of the pair of first transmission shafts, any one of the claws provided on the other first transmission shaft passes through one of the first assembly notches;

[0018] a plurality of first fixed blades fixedly disposed on a side wall of the inner cavity on one side of the assembly housing, the plurality of first fixed blades being spaced apart along a length direction of the assembly housing, the blade portion of any first fixed blade being disposed facing the top wall of the inner cavity of the assembly housing, and any first assembly notch being located between a pair of adjacent first fixed blades;

[0019] a plurality of second fixed blades fixedly disposed on a side wall of the inner cavity on the other side of the assembly housing, the plurality of second fixed blades being spaced apart along the length direction of the assembly housing, the cutting edge of each second fixed blade being disposed facing the top wall of the inner cavity of the assembly housing, and each second assembly notch being located between a pair of adjacent second fixed blades;

[0020] A plurality of cutting blades are fixedly arranged on the circumferential side walls of a pair of first transmission shafts. During the rotation of the pair of first transmission shafts, the blade portion of any cutting blade arranged on one of the first transmission shafts passes through the gap between one pair of adjacent first fixed blades, and the blade portion of any cutting blade arranged on the other first transmission shaft passes through the gap between one pair of adjacent second fixed blades.

[0021] Furthermore, the device also includes: a transverse splitting module, which is arranged on the frame body and the assembly shell and is used to split the entangled and clumped crop straw picked up by the claw hook.

[0022] Furthermore, the horizontal split module includes:

[0023] A guide hole is provided on the top of the assembly shell. The guide hole is an elongated hole. The guide hole is provided along the length direction of the assembly shell. The guide hole is communicated with the inner cavity of the assembly shell.

[0024] A guide rod is fixedly arranged on the top of the assembly housing, and the axis of the guide rod is parallel to the axis of the guide hole;

[0025] A bearing member is movably arranged in the guide hole, and the bearing member is slidably connected to the guide rod;

[0026] A plurality of splitting teeth are fixedly arranged on the bottom of the carrier, and the plurality of splitting teeth are evenly spaced along the length direction of the carrier;

[0027] A pair of return springs are sleeved on the guide rod, one end of the return spring is connected to the guide rod, and the other end of the return spring is connected to the bearing member, and the bearing member is located between the pair of return springs;

[0028] The driving assembly is arranged on the frame body and is connected to the bearing member, and is used for driving the bearing member to slide along the axial direction of the guide rod.

[0029] Furthermore, the plurality of splitting teeth are serrated, and the blades of the plurality of splitting teeth all face the bottom port of the assembly shell, and are used for cutting crop straw.

[0030] Furthermore, the drive component includes:

[0031] A protective shell is fixedly arranged on the side panel;

[0032] A bearing plate, fixedly arranged on the inner wall of the protective shell;

[0033] A turntable is rotatably mounted on the carrier plate and is located in the inner cavity of the protective housing;

[0034] An assembly column is fixedly arranged on an end surface of one end of the turntable, the assembly column is arranged along the axial direction of the turntable, and the assembly column is located at the circumferential outer edge of the turntable;

[0035] A shaft sleeve is sleeved on the assembly column, and the shaft sleeve is rotatably connected to the assembly column;

[0036] An assembly hole is provided on the side panel and is communicated with the inner cavity of the frame body;

[0037] The guide pulley assembly is fixedly arranged on the side plate, and the position of the guide pulley assembly matches the position of the port of the assembly hole;

[0038] A motor is fixedly mounted on the carrier plate, and an output shaft of the motor is connected to the turntable for driving the turntable to rotate;

[0039] The traction rope is movably inserted into the assembly hole. The traction rope passes between the fixed pulleys of the guide pulley group. One end of the traction rope is fixedly connected to the shaft sleeve, and the other end of the traction rope is fixedly connected to the bearing member for pulling the bearing member to slide.

[0040] Furthermore, the splitting teeth are in the shape of short rods, and any splitting teeth are vertically arranged at the bottom of the bearing member along the height direction of the frame body.

[0041] Furthermore, the device also includes:

[0042] A second transmission shaft is provided at the bottom of the frame body, with both ends of the second transmission shaft being rotatably connected to a pair of side plates of the frame body, the second transmission shaft being connected to the driving device, and a pair of first transmission shafts being located between the second transmission shaft and the rotary tillage device;

[0043] A plurality of split frames are fixedly arranged on the second transmission shaft, and the plurality of split frames are distributed in a circular array around the second transmission shaft;

[0044] A spiral blade is fixedly disposed on a circumferential side wall of the second transmission shaft, the spiral blade is spirally disposed around the second transmission shaft, the spiral blade is located in a cavity between the plurality of segmentation frames, and a circumferential outer edge of the spiral blade is fixedly connected to the plurality of segmentation frames;

[0045] a third transmission shaft disposed at the bottom of the frame body, with both ends of the third transmission shaft being rotatably connected to a pair of side plates of the frame body, the third transmission shaft being connected to the drive device, and the second transmission shaft being located between the third transmission shaft and the first transmission shaft;

[0046] A plurality of rotary cutting blades are fixedly sleeved on the third transmission shaft, any rotary cutting blade is arranged along the radial direction of the third transmission shaft, and a plurality of rotary cutting blades are arranged at equal intervals along the axial direction of the third transmission shaft for cutting crop straw.

[0047] A land preparation device for returning straw to the field by chopping, mixing, mulching and returning straw according to an embodiment of the present invention has the following beneficial effects:

[0048] 1. This equipment is equipped with multiple claw hooks on a pair of first transmission shafts, and uses a driving device to drive the pair of first transmission shafts to rotate in opposite directions, so that the pair of first transmission shafts drive the claw hooks to grab the crop straw in the cultivated soil and separate it, so as to solve the problem of limited disassembly and separation effect of crop roots in the soil in the existing land preparation machines.

[0049] 2. This equipment grabs crop straw by selecting a claw hook with a hook handle, a curved hook and a hook blade. When the claw hook is driven by the first transmission shaft to rotate, the curved hook portion and part of the hook handle of the claw hook pass through the first assembly gap or the second assembly gap. The inner wall of the assembly shell is used to push the crop straw located at the curved hook portion to the hook blade position, and the hook blade cooperates with the first fixed blade or the second fixed rod blade to cut the crop straw to prevent the crop straw from being entangled on the first transmission shaft.

[0050] 3. This equipment uses a claw hook with a hook handle, a curved hook and a hook blade to grab the crop straw, so that when it rotates under the drive of the first transmission shaft, the crop straw located in the soil below the pair of first transmission shafts is transferred to the space above the plurality of first fixed blades and the plurality of second fixed blades, thereby utilizing the cutting blades arranged on the pair of first transmission shafts to cooperate with the first fixed blades and the second fixed blades to further crush the crop straw, thereby enhancing the dismantling effect of this equipment on entangled and clumped crop straw.

[0051] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is a perspective view of a first embodiment of the present invention;

[0053] Figure 2 Schematic diagram of the internal structure of the assembly housing according to the first embodiment of the present invention;

[0054] Figure 3 Schematic diagram of the distribution of a pair of first transmission shafts inside the assembly housing according to the first embodiment of the present invention;

[0055] Figure 4 Schematic diagram of the assembly of a plurality of claw hooks and a plurality of cutting blades on a first transmission shaft according to the first embodiment of the present invention;

[0056] Figure 5 This is a schematic diagram of the assembly of a drive assembly according to the first embodiment of the present invention;

[0057] Figure 6 A parts diagram of an assembled housing according to Embodiment 1 of the present invention;

[0058] Figure 7 Schematic diagram of the assembly of a carrier and a plurality of split teeth according to the second embodiment of the present invention.

[0059] Description of the accompanying drawings:

[0060] 1-frame body, 11-side plate, 2-rotary tillage device, 3-first transmission shaft, 31-claw hook, 311-hook handle, 312-bend hook, 313-hook blade, 32-cutting blade, 4-assembly shell, 41-first assembly notch, 42-second assembly notch, 43-first fixed blade, 44-second fixed blade, 5-second transmission shaft, 51-split frame, 52-spiral blade, 6-third transmission shaft, 61-rotary cutting blade, 7-lateral split module, 71-guide hole, 72-guide rod, 721-reset spring 73-carrying member, 31-split tooth, 741-protective shell, 742-carrying plate, 743-turntable, 431-assembly column, 7432-sleeve, 744-assembly hole, 745-guide pulley group, 7451-fixed pulley, 746-traction rope. DETAILED DESCRIPTION

[0061] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to further illustrate the present invention.

[0062] The foregoing and other technical aspects, features, and benefits of the present invention will be more clearly understood in the following detailed description of the embodiments, which is accompanied by reference to the accompanying drawings. Directional terms such as up, down, left, right, front, and back, used in the following embodiments, are merely references to the accompanying drawings. Therefore, the directional terms used are for illustrative purposes only and are not intended to limit the present invention. Furthermore, identical reference numerals throughout the embodiments denote identical elements.

[0063] Example 1

[0064] like Figure 1As shown, this embodiment proposes a land preparation device for straw chopping, mixing, mulching and returning to the field, comprising: a frame body 1, a rotary tillage device 2, a pair of first transmission shafts 3, a plurality of claw hooks 31, an assembly shell 4 and a driving device (not shown in the figure); the frame body 1 is connected to an external tractor and is moved by the tractor; the rotary tillage device 2 is arranged at the tail end of the frame body 1, and is used to rotary till the cultivated soil; a pair of first transmission shafts 3 are arranged in parallel at the bottom of the frame body 1, and the two ends of any one of the first transmission shafts 3 are rotatably connected to the side plates 11 on both sides of the frame body 1; a pair of first transmission shafts 3 are provided on the circumferential side walls A plurality of claw hooks 31 are provided for grabbing crop straw; the assembly shell 4 is arranged at the bottom of the frame body 1, the assembly shell 4 is fixedly connected to a pair of side plates 11, a pair of first transmission shafts 3 are located in the inner cavity of the assembly shell 4, and the bottom of the assembly shell 4 adopts an open design; the driving device is arranged on the frame body 1, the driving device is connected to the rotary tillage device 2, and the driving device is connected to the pair of first transmission shafts 3, which is used to drive the pair of first transmission shafts 3 to rotate in opposite directions, that is, to drive the first transmission shaft 3 on the side relatively close to the head end of the frame body 1 to rotate clockwise, and to drive the first transmission shaft 3 on the side relatively close to the tail end of the frame body 1 to rotate counterclockwise.

[0065] Preferably, in this embodiment, the user can set a radar and a controller electrically connected to the frame body 1 to use the radar to detect the density of crop straw scattered on the surface of the cultivated land, and feed back the detection data to the controller, and use the controller to control the driving device according to the radar detection data, and then adjust the operating efficiency of a pair of first transmission shafts 3, second transmission shafts 5, third transmission shafts 6 and rotary tillage device 2 to ensure the quality of the equipment's crushing, mixing and covering operations on crop straw, improve the equipment's crop straw crushing, mixing and covering operations efficiency, and thereby improve the intelligent operation level of the equipment.

[0066] Further, if Figure 1 、 2 As shown in Figures 4 and 5, the claw hook 31 includes: a hook handle portion 311, a curved hook portion 312 and a hook blade portion 313; the hook handle portion 311 is fixedly arranged on the circumferential side wall of the first transmission shaft 3, and the hook handle portion 311 is arranged along the radial direction of the first transmission shaft 3; the curved hook portion 312 is fixedly arranged at the end of the hook handle portion 311 for grabbing crop straw; the hook blade portion 313 is fixedly arranged on the hook handle portion 311 for cutting crop straw.

[0067] Further, if Figures 1 to 4As shown, the present device further comprises: a plurality of first assembly notches 41, a plurality of second assembly notches 42, a plurality of first fixed blades 43, a plurality of second fixed blades 44 and a plurality of cutting blades 32; a plurality of first assembly notches 41 are provided on the side wall on one side of the assembly shell 4, any first assembly notch 41 is communicated with the inner cavity of the assembly shell 4, and during the rotation of a pair of first transmission shafts 3, any claw hook 31 provided on one of the first transmission shafts 3 passes through one of the first assembly notches 41; a plurality of second assembly notches 42 are provided on the side wall on the other side of the assembly shell 4, any second assembly notch 42 is communicated with the inner cavity of the assembly shell 4, and during the rotation of a pair of first transmission shafts 3, any claw hook 31 provided on the other first transmission shaft 3 passes through one of the first assembly notches 41; a plurality of first fixed blades 43 are fixedly provided on the inner cavity side wall on one side of the assembly shell 4, and a plurality of first fixed blades 43 are arranged along the length direction of the assembly shell 4 They are arranged at intervals, with the blade edge of any first fixed blade 43 facing the inner cavity top wall of the assembly shell 4, and any first assembly notch 41 being located between a pair of adjacent first fixed blades 43; a number of second fixed blades 44 are fixedly arranged on the inner cavity side wall on the other side of the assembly shell 4, and a number of second fixed blades 44 are arranged at intervals along the length direction of the assembly shell 4, with the blade edge of any second fixed blade 44 facing the inner cavity top wall of the assembly shell 4, and any second assembly notch 42 being located between a pair of adjacent second fixed blades 44; a number of cutting blades 32 are fixedly arranged on the circumferential side walls of a pair of first transmission shafts 3, and during the rotation of a pair of first transmission shafts 3, the blade edge of any cutting blade 32 arranged on one of the first transmission shafts 3 passes through the gap between a pair of adjacent first fixed blades 43, and the blade edge of any cutting blade 32 arranged on the other first transmission shaft 3 passes through the gap between a pair of adjacent second fixed blades 44.

[0068] In this embodiment, a plurality of claw hooks 31 are provided on the two counter-rotating first transmission shafts 3, so that during the counter-rotating process of the pair of first transmission shafts 3, the claw hooks 31 on the pair of first transmission shafts 3 cooperate with each other to pick up the crop straw located at the lower side of the gap between the pair of first transmission shafts 3, and drive the crop straw to pass through the gap between the pair of first transmission shafts 3 and move to the upper side of the gap between the pair of first transmission shafts 3, so as to enhance the crop straw picking effect of this device; after the crop straw moves to the upper side of the gap between the pair of first transmission shafts 3, the claw hooks 31 for picking up the crop straw arranged on the pair of first transmission shafts 3 move away from each other, and the picked-up crop straw is split to the left and right sides of the pair of first transmission shafts 3, and the hook blades 313, the plurality of first assembly notches 41, the plurality of second assembly notches 42, the plurality of first The fixed blade 43, several second fixed blades 44 and several cutting blades 32 cooperate to chop the crop straw; for the entangled and clumped crop straw (such as leguminous crop straw that is easy to clump), after the claw hook 31 picks it up to the upper side of the gap between the pair of first transmission shafts 3, the claw hooks 31 set on the pair of first transmission shafts 3 move away from each other, and the entangled and clumped crop straw slides toward the hook handle 311 of the claw hook 31 under the pull of the claw hook 31, and the hook blade 313 of the claw hook 31 and the cutting blade 32 are used to cut off the entangled and clumped crop straw, so as to enhance the disassembly efficiency and disassembly effect of the device for the entangled and clumped crop straw, and at the same time, it can also effectively prevent the crop straw with a larger clumping volume from being retained in the cavity between the pair of first transmission shafts 3 and the assembly shell 4, so as to avoid adverse effects on the crop straw picking efficiency of the device.

[0069] Compared with the prior art equipment for straw shredding and returning to the field (such as a straw shredding and planting integrated system in soil disclosed in the Chinese invention patent with authorization announcement number CN113574998B), which first uses a picking roller to pick up the crop straw in the cultivated soil and then uses the picking needle of the picking roller to cooperate with the groove on the collecting cylinder set on its rear side to chop the crop straw, this equipment picks up the crop straw by arranging multiple claw hooks 31 on a pair of counter-rotating first transmission shafts 3, so that a pair of first transmission shafts 3 can be used to pick up the crop straw. In the process of using the claw hook 31 to pick up crop straw, before the hook blade 313 of the claw hook 31, several first assembly notches 41, several second assembly notches 42, several first fixed blades 43, several second fixed blades 44 and several cutting blades 32 cooperate to chop the crop straw, the claw hooks 31 arranged on a pair of first transmission shafts 3 cooperate with each other to separate the entangled crop straw to prevent the entangled crop straw from being retained in the inner cavity of the assembly shell 4, which will have an adverse effect on the operating efficiency of the equipment.

[0070] Further, if Figures 1-3As shown, the device further comprises: a transverse splitting module 7 , which is arranged on the frame body 1 and the assembly shell 4 and is used to split the entangled crop straw picked up by the claw hook 31 .

[0071] Further, if Figures 1-3 As shown in Figures 5 and 6, the horizontal splitting module 7 includes: a guide hole 71, a guide rod 72, a bearing member 73, a plurality of splitting teeth 731, a pair of return springs 721 and a driving assembly; the guide hole 71 is opened at the top of the assembly shell 4, the guide hole 71 is a long hole, the guide hole 71 is arranged along the length direction of the assembly shell 4, and the guide hole 71 is connected to the inner cavity of the assembly shell 4; the guide rod 72 is fixedly arranged at the top of the assembly shell 4, and the axis of the guide rod 72 is parallel to the axis of the guide hole 71; the bearing member 73 is movably arranged in the guide hole 71, and the bearing member 73 The guide rod 72 is slidably connected to the guide rod 72; a plurality of split teeth 731 are fixedly provided at the bottom of the carrier 73, and the plurality of split teeth 731 are evenly spaced along the length direction of the carrier 73; a pair of return springs 721 are sleeved on the guide rod 72, one end of the return spring 721 is connected to the guide rod 72, and the other end of the return spring 721 is connected to the carrier 73, and the carrier 73 is located between the pair of return springs 721; a drive assembly is provided on the frame body 1, and the drive assembly is connected to the carrier 73, and is used to drive the carrier 73 to slide axially along the guide rod 72;

[0072] In this embodiment, during the rotation of the pair of first transmission shafts 3, some of the claw hooks 31 arranged on the pair of first transmission shafts 3 approach each other, grab the crop straw in the cultivated soil upwards, and transmit it into the cavity between the pair of first transmission shafts 3 and the top wall of the inner cavity of the assembly shell 4 through the gap between the pair of first transmission shafts 3, and as the pair of first transmission shafts 3 further rotate, the claw hooks 31 that grab the crop straw move away from each other, and then tear apart the entangled crop straw they grab, so that this equipment is suitable for grabbing corn crop straw with well-developed root systems, and is also suitable for grabbing leguminous crop straw that is easy to entangle and clump, and thus makes this equipment suitable for straw crushing, mixing and covering the cultivated land where corn crops are planted and leguminous crops are selected as cover crops.

[0073] Further, if Figure 2 、 5 As shown, several splitting teeth 731 are serrated, and the blade portions of several splitting teeth 731 are all facing the bottom port of the assembly shell 4, and are used to cut crop straw, so that in the process of the claw hook 31 set on a pair of first transmission shafts 3 tearing apart the entangled crop straw located on the upper side of the gap between the pair of first transmission shafts 3, the splitting teeth 731 are used to cut the crop straw, thereby further improving the efficiency of the device in disassembling the entangled crop straw.

[0074] Further, if Figures 1-35, the driving assembly includes: a protective shell 741, a carrier plate 742, a disk 743, a matching column 7431, a sleeve 7432, a matching hole 744, a pulley group 745, a motor (not shown in the figure) and a traction rope 746; the protective shell 741 is fixedly set on the side plate 11; the carrier plate 742 is fixedly set on the inner wall of the protective shell 741; the turntable 743 is rotatably set on the carrier plate 742, and the turntable 743 is located in the inner cavity of the protective shell 741; the assembly column 7431 is fixedly set on the end surface of one end of the turntable 743, and the assembly column 7431 rotates along the turntable 741. The disk 743 is axially arranged, and the assembly column 7431 is located at the circumferential outer edge of the turntable 743; the shaft sleeve 7432 is sleeved on the assembly column 7431, and the shaft sleeve 7432 is rotatably connected to the assembly column 7431; the assembly hole 744 is opened on the side plate 11, and the assembly hole 744 is connected to the inner cavity of the frame body 1; the guide pulley group 745 is fixedly arranged on the side plate 11, and the position of the guide pulley group 745 matches the position of the port of the assembly hole 744; the motor is fixedly arranged on the bearing plate 742, and the output shaft of the motor is connected to the turntable 743, so as to drive the turntable 743 to rotate;

[0075] The traction rope 746 is movably inserted into the assembly hole 744, and the traction rope 746 passes between the fixed pulleys 7451 of the guide pulley group 745. One end of the traction rope 746 is fixedly connected to the shaft sleeve 7432, and the other end of the traction rope 746 is fixedly connected to the supporting member 73, which is used to pull the supporting member 73 to slide.

[0076] Further, if Figure 1As shown, the device also includes: a second transmission shaft 5, a plurality of segmentation frames 51, a rotary blade 52, a third transmission shaft 6 and a plurality of rotary cutting blades 61; the second transmission shaft 5 is arranged at the bottom of the frame body 1, and the two ends of the second transmission shaft 5 are respectively rotatably connected to a pair of side plates 11 of the frame body 1, the second transmission shaft 5 is connected to the driving device, and a pair of first transmission shafts 3 are located between the second transmission shaft 5 and the rotary tillage device 2; a plurality of segmentation frames 51 are fixedly arranged on the second transmission shaft 5, and a plurality of segmentation frames 51 are distributed in a circular array around the second transmission shaft 5. The device is provided with a plurality of segmentation frames 51 on the second transmission shaft 5, so that in the process of the forward movement of the device, the segmentation frame digs the cultivated soil toward the tail end of the frame body 1, thereby digging the crop roots inside the cultivated soil to the surface of the cultivated land, so as to reduce the fixing effect of the cultivated soil on the crop roots and enhance the crushing effect of the rotary tillage device 2 on the crop roots; the spiral blade 52 is fixedly arranged on the circumferential side wall of the second transmission shaft 5, and the spiral blade 52 is spirally arranged around the second transmission shaft 5 The spiral blade 52 is located in the cavity between the several segmentation frames 51, and the circumferential outer edge of the spiral blade 52 is fixedly connected to the several segmentation frames 51. The present device is provided with a spiral blade 52 on the second transmission shaft 5, so that in the process of the present device moving forward, the spiral blade 52 is used to push part of the soil in the ridge structure of the cultivated land laterally into the ridge, so as to turn the crop roots out to the surface of the cultivated land, and the circumferential outer edge of the spiral blade 52 is fixedly connected to the several segmentation frames 51 to enhance the structural strength of the spiral blade 52; the third transmission shaft 6 is provided at the bottom of the frame body 1, and the two ends of the third transmission shaft 6 are respectively rotatably connected to a pair of side plates 11 of the frame body 1, the third transmission shaft 6 is connected to the driving device, and the second transmission shaft 5 is located between the third transmission shaft 6 and the first transmission shaft 3; a plurality of rotary cutting blades 61 are fixedly sleeved on the third transmission shaft 6, any rotary cutting blade 61 is arranged along the radial direction of the third transmission shaft 6, and a plurality of rotary cutting blades 61 are arranged at equal intervals along the axial direction of the third transmission shaft 6 for cutting crop straw.

[0077] When the equipment is running, the tractor drives the equipment to move by dragging the frame body 1. During the displacement of the equipment, the driving device drives the pair of first transmission shafts 3 to rotate respectively toward the gap between the pair of transmission shafts. During the rotation of the pair of first transmission shafts 3, the claw hooks 31 arranged on the pair of first transmission shafts 3 hook the crop straw scattered on the cultivated land and transmit it toward the gap between the pair of first transmission shafts 3, thereby transmitting the crop straw located on the lower side of the pair of first transmission shafts 3 to the cavity between the pair of first transmission shafts 3 and the top wall of the inner cavity of the assembly shell 4. After the crop straw is transmitted from the lower side of the pair of first transmission shafts 3 to the upper side of the pair of first transmission shafts 3, the claw hooks 31 that hook the crop straw move away from each other under the drive of the pair of first transmission shafts 3, thereby using the claw hooks 31 arranged on the pair of first transmission shafts 3 to tear the crop straw that is clumped together to disperse it; as the pair of first transmission shafts 3 further rotate, the curved hooks of the claw hooks 31 that hook the crop straw The portion 312 and part of the hook handle portion 311 extend to the outside of the assembly shell 4 through the first assembly notch 41 or the second assembly notch 42, so that the assembly shell 4 is used to push the crop straw located at the bent hook position of the claw hook 31 to the position of the hook blade portion 313 of the claw hook 31, so that when the claw hook 31 passes through the gap between any pair of adjacent first fixed blades 43 or the gap between any pair of adjacent second fixed blades 44, the hook blade portion 313 of the claw hook 31 cooperates with the first fixed blade 43 or the second fixed blade 44 to cut the crop straw to prevent the crop straw from being wrapped around the first transmission shaft 3; during the rotation of the first transmission shaft 3, the cutting blade 32 arranged on the first transmission shaft 3 passes through the gap between several first fixed blades 43 or the gap between several second fixed blades 44, thereby chopping the crop straw in the cavity between a pair of first transmission shafts 3 and the inner surface of the bearing shell, so as to enhance the crop straw crushing effect of this device on the crop straw.

[0078] When the tractor drives the equipment forward, the rotary tillage device 2 performs rotary tillage on the cultivated land soil under the drive of the driving device. At the same time, the driving device drives the second transmission shaft 5 and the third transmission shaft 6 to rotate, thereby using the third transmission shaft 6 to drive several rotary cutting blades 61 to rotate. During the movement of the equipment, the crop straw scattered on the surface of the cultivated land is cut off. At the same time, the third transmission shaft 6 drives several splitting frames arranged thereon to rotate. During the movement of the equipment forward, the splitting frame digs the cultivated land soil toward the tail end of the frame body 1, thereby digging the crop roots inside the cultivated land soil to the surface of the cultivated land, so as to reduce the fixing effect of the cultivated land soil on the crop roots and enhance the crushing effect of the rotary tillage device 2 on the crop roots. In the process of rotation of the second transmission shaft 5, the second transmission shaft 5 drives the spiral blade 52 to rotate, thereby pushing part of the soil in the cultivated land ridge structure laterally into the ridge ditch, so as to turn the crop roots out to the surface of the cultivated land.

[0079] In this embodiment, after the claw hook 31 provided on the pair of first transmission shafts 3 transmits the entangled crop straw to the cavity between the pair of first transmission shafts 3 and the top wall of the inner cavity of the assembly shell 4, the claw hook 31 provided on the pair of first transmission shafts 3 tightens the entangled crop straw as the pair of first transmission shafts 3 further rotates. At the same time, the motor drives the turntable 743 to rotate, thereby utilizing the assembly column 7431 fixed on the end face of the turntable 743 to drive the traction rope 746 to pull the supporting member 73 to slide back and forth along the guide rod 72, and then utilizing a plurality of splitting teeth 731 provided at the bottom of the supporting member 73 to cut off the entangled crop straw transmitted by the claw hook 31 provided on the pair of first transmission shafts 3 to the cavity between the pair of first transmission shafts 3 and the inner surface of the assembly shell 4, so that as the first transmission shaft 3 further rotates, the claw hook 31 provided on the pair of first transmission shafts 3 can separate the entangled crop straw.

[0080] Example 2

[0081] like Figures 1-3 As shown in , 5 and 7 , this embodiment is based on the first embodiment, and its difference is that the splitting teeth 731 are in the shape of short rods, and any splitting teeth 731 are vertically arranged at the bottom of the bearing member 73 along the height direction of the frame body 1.

[0082] In this embodiment, after the claw hook 31 provided on a pair of first transmission shafts 3 transfers the crop straw to the cavity between the pair of first transmission shafts 3 and the inner surface of the assembly shell 4, the short rod-shaped splitting teeth 731 provided at the bottom of the supporting member 73 are inserted into the entangled crop straw. In the process of the driving component driving the supporting member 73 to slide back and forth along the guide of the guide rod 72, the supporting member 73 is used to drive the splitting teeth 731 to shake off the entangled crop straw.

[0083] It should be noted that, in this specification, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the elements.

[0084] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description is not intended to limit the present invention. After reading the above description, various modifications and substitutions of the present invention will become apparent to those skilled in the art. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A land preparation device for crushing, mixing, mulching and returning straw to the field, characterized in that: Include: The rotary tillage device is arranged at the rear end of the frame body and is used for rotary tilling the cultivated soil; A pair of first transmission shafts are arranged in parallel at the bottom of the frame body, and both ends of each first transmission shaft are rotatably connected to the side plates on both sides of the frame body; A plurality of claw hooks are provided on the circumferential side walls of the pair of first transmission shafts for grabbing crop straw; An assembly shell is provided at the bottom of the frame body, the assembly shell is fixedly connected to the pair of side plates, the pair of first transmission shafts are located in the inner cavity of the assembly shell, and the bottom of the assembly shell adopts an open design; a driving device, disposed on the frame body, connected to the rotary tillage device, and connected to the pair of first transmission shafts, for driving the pair of first transmission shafts to rotate in opposite directions; The claw hook comprises: a hook handle portion, fixedly disposed on a circumferential side wall of the first transmission shaft, the hook handle portion being disposed along a radial direction of the first transmission shaft; A curved hook portion, fixedly arranged at the end of the hook handle portion, for grabbing the crop straw; A hook blade portion, fixedly arranged on the hook handle portion, for cutting the crop straw; Also includes: a plurality of first assembly notches, formed on a side wall of one side of the assembly housing, wherein any one of the first assembly notches is in communication with the inner cavity of the assembly housing, and wherein during the rotation of the pair of first transmission shafts, any one of the claw hooks provided on one of the first transmission shafts passes through one of the first assembly notches; a plurality of second assembly notches, formed on the side wall of the other side of the assembly housing, wherein any one of the second assembly notches is in communication with the inner cavity of the assembly housing, and during the rotation of the pair of first transmission shafts, any one of the claws provided on the other first transmission shaft passes through one of the first assembly notches; a plurality of first fixed blades fixedly disposed on a side wall of the inner cavity on one side of the assembly housing, the plurality of first fixed blades being spaced apart along a length direction of the assembly housing, the blade portion of any first fixed blade being disposed facing the top wall of the inner cavity of the assembly housing, and any first assembly notch being located between a pair of adjacent first fixed blades; a plurality of second fixed blades fixedly disposed on the inner cavity side wall on the other side of the assembly housing, the plurality of second fixed blades being spaced apart along the length direction of the assembly housing, the blade portion of any second fixed blade being disposed facing the inner cavity top wall of the assembly housing, and any second assembly notch being located between a pair of adjacent second fixed blades; A plurality of cutting blades are fixedly arranged on the circumferential side walls of the pair of first transmission shafts. During the rotation of the pair of first transmission shafts, the blade portion of any one of the cutting blades arranged on one of the first transmission shafts passes through the gap between one pair of adjacent first fixed blades, and the blade portion of any one of the cutting blades arranged on the other first transmission shaft passes through the gap between one pair of adjacent second fixed blades.

2. The land preparation equipment for straw chopping, mixing, mulching and returning to the field as claimed in claim 1, characterized in that: It also includes: a transverse splitting module, which is arranged on the frame body and the assembly shell and is used to split the entangled crop straw picked up by the claw hook.

3. The land preparation equipment for straw chopping, mixing, mulching and returning to the field as claimed in claim 2, characterized in that: The horizontal splitting module includes: A guide hole is provided on the top of the assembly shell, the guide hole is an elongated hole, the guide hole is arranged along the length direction of the assembly shell, and the guide hole is connected to the inner cavity of the assembly shell; A guide rod, fixedly arranged on the top of the assembly housing, wherein the axis of the guide rod is parallel to the axis of the guide hole; a bearing member, movably disposed in the guide hole, wherein the bearing member is slidably connected to the guide rod; A plurality of splitting teeth are fixedly arranged on the bottom of the carrier, and the plurality of splitting teeth are evenly spaced along the length direction of the carrier; a pair of return springs, sleeved on the guide rod, one end of the return spring being connected to the guide rod, the other end of the return spring being connected to the bearing member, and the bearing member being located between the pair of return springs; A driving assembly is provided on the frame body, and the driving assembly is connected to the bearing member and is used for driving the bearing member to slide along the axial direction of the guide rod.

4. The land preparation equipment for straw chopping, mixing, mulching and returning to the field as claimed in claim 3, characterized in that: The plurality of splitting teeth are sawtooth-shaped, and the blades of the plurality of splitting teeth all face the bottom port of the assembly shell and are used for cutting the crop straw.

5. The land preparation equipment for straw chopping, mixing, mulching and returning to the field as claimed in claim 4, characterized in that: The drive assembly comprises: A protective shell is fixedly mounted on the side panel; A bearing plate, fixedly arranged on the inner wall of the protective shell; a turntable, rotatably disposed on the carrying plate, the turntable being located in the inner cavity of the protective shell; An assembly column is fixedly arranged on an end surface of one end of the turntable, the assembly column is arranged along the axial direction of the turntable, and the assembly column is located at the circumferential outer edge of the turntable; A shaft sleeve is sleeved on the assembly column, and the shaft sleeve is rotatably connected to the assembly column; An assembly hole is provided on the side panel, the assembly hole being in communication with the inner cavity of the frame body; A guide pulley assembly is fixedly arranged on the side plate, and the position of the guide pulley assembly matches the position of the port of the assembly hole; A motor is fixedly mounted on the carrier plate, wherein an output shaft of the motor is connected to the turntable for driving the turntable to rotate; A traction rope is movably inserted into the assembly hole, and the traction rope passes between the fixed pulleys of the guide pulley group. One end of the traction rope is fixedly connected to the shaft sleeve, and the other end of the traction rope is fixedly connected to the bearing member for pulling the bearing member to slide.

6. The land preparation equipment for straw chopping, mixing, mulching and returning to the field as claimed in claim 3, characterized in that: The splitting teeth are in the shape of short rods, and any one of the splitting teeth is vertically arranged at the bottom of the bearing member along the height direction of the frame body.

7. The land preparation equipment for straw chopping, mixing, mulching and returning to the field as claimed in claim 1, characterized in that: Also includes: a second transmission shaft, disposed at the bottom of the frame body, with both ends of the second transmission shaft being rotatably connected to a pair of side plates of the frame body, the second transmission shaft being connected to the driving device, and the pair of first transmission shafts being located between the second transmission shaft and the rotary tilling device; A plurality of split frames are fixedly arranged on the second transmission shaft, and the plurality of split frames are distributed in a circular array around the second transmission shaft; a spiral blade fixedly disposed on a circumferential side wall of the second transmission shaft, the spiral blade being spirally disposed around the second transmission shaft, the spiral blade being located in a cavity between the plurality of segmentation frames, and the circumferential outer edge of the spiral blade being fixedly connected to the plurality of segmentation frames; a third transmission shaft, disposed at the bottom of the frame body, with both ends of the third transmission shaft being rotatably connected to a pair of side plates of the frame body, the third transmission shaft being connected to the driving device, and the second transmission shaft being located between the third transmission shaft and the first transmission shaft; A plurality of rotary cutting blades are fixedly sleeved on the third transmission shaft, any one of the rotary cutting blades is arranged along the radial direction of the third transmission shaft, and the plurality of rotary cutting blades are arranged at equal intervals along the axial direction of the third transmission shaft for cutting the crop straw.

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