Soil preparation equipment for straw crushing, mixing, covering and returning to field

Abstract

The invention relates to the technical field of agricultural mechanical equipment, in particular to soil preparation equipment for straw crushing, mixing, covering and returning, which is characterized in that a rotary tillage device is arranged at the tail end of a rack main body; the pair of first transmission shafts is arranged at the bottom of the rack body in parallel, and the two ends of any first transmission shaft are rotationally connected with the side plates on the two sides of the rack body correspondingly. A plurality of claw hooks are arranged on the circumferential side walls of the pair of first transmission shafts and are used for grabbing crop straws; the assembling shell is arranged at the bottom of the rack body and fixedly connected with the pair of side plates, and the pair of first transmission shafts is located in an inner cavity of the assembling shell. The driving device is arranged on the rack body and connected with the rotary tillage device and the pair of first transmission shafts. According to the soil preparation machine, the pair of first transmission shafts are driven to rotate reversely, crop straw in cultivated land soil is grabbed through the claw hooks, the crop straw is disassembled, and the problem that in the prior art, the disassembling and separating effect of a soil preparation machine on crop roots in the soil is limited is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery and equipment, and particularly relates to a land preparation device for straw crushing, mixing, covering and returning to the field. Background Art

[0002] The straw crushing, mixing, covering and returning land preparation device is an agricultural machinery device that is driven by the tractor PTO and cooperates with modules such as high-speed crushing and rotary tillage and burying to quickly cut the field straw into 3-5 cm segments and evenly mix them into the soil at a depth of 10-20 cm; with the development of intelligent agricultural power machinery and precise sensing technology, the land preparation device further improves the operation efficiency and ecological benefits by integrating technologies such as the Internet of Things, artificial intelligence, and precise navigation, and further improves the intelligent operation ability through digital and automation technologies, realizing the efficient utilization of resources.

[0003] In the prior art, a land preparation machine for straw crushing, mixing, covering and returning to the field disclosed in a Chinese invention patent with the authorization announcement number CN118020421B includes a support frame, and an installation plate is fixedly installed on the support frame. It further includes: a reverse moving seat one and a reverse moving seat two, both the reverse moving seat one and the reverse moving seat two are slidably connected to the bottom wall of the support frame through clamping guide rails, and a crushing and separating plate is fixedly installed on both the reverse moving seat one and the reverse moving seat two, and a plurality of conical teeth are distributed on the crushing and separating plate; and a straw splitting mechanism, the straw splitting mechanism is respectively connected to the support frame, the reverse moving seat one and the reverse moving seat two, wherein the straw splitting mechanism includes a reverse pulling component and a feeding component.

[0004] However, during the operation of this device, the scattered clumped crop straw on the ground is disassembled and separated by driving the transverse displacement of the crushing and separating plate, and its disassembly and separation effect on the crop roots in the soil is limited. Summary of the Invention

[0005] In view of the technical problems existing in the prior art, an embodiment of the present invention provides a land preparation device for straw crushing, mixing, covering and returning to the field, including: A rotary tillage device, arranged at the tail end of the frame main body, for rotary tillage of the cultivated soil; A pair of first transmission shafts, arranged in parallel at the bottom of the frame main body, and both ends of any one of the first transmission shafts are rotatably connected to the side plates on both sides of the frame main body; A plurality of claw hooks are arranged on the circumferential side walls of the pair of first transmission shafts for grasping crop straw; An assembly housing, arranged at the bottom of the frame main body, the assembly housing is fixedly connected to the pair of side plates, the pair of first transmission shafts are located in the inner cavity of the assembly housing, and the bottom of the assembly housing is designed to be open; The driving device is arranged on the main body of the frame. The driving device is connected to the rotary tillage device and is connected to a pair of first transmission shafts, and is used to drive the pair of first transmission shafts to rotate in opposite directions.

[0006] Furthermore, the claw hook includes: The hook handle part is fixedly arranged on the circumferential side wall of the first transmission shaft, and the hook handle part is arranged along the radial direction of the first transmission shaft; The bent hook part is fixedly arranged at the end of the hook handle part and is used for grasping crop straws; The hook blade part is fixedly arranged on the hook handle part and is used for cutting crop straws.

[0007] Furthermore, this equipment also includes: A number of first assembly notches are opened on the side wall of one side of the assembly housing. Any one of the first assembly notches communicates with the inner cavity of the assembly housing. During the rotation of the pair of first transmission shafts, any claw hook arranged on one of the first transmission shafts passes through one of the first assembly notches; A number of second assembly notches are opened on the side wall of the other side of the assembly housing. Any one of the second assembly notches communicates with the inner cavity of the assembly housing. During the rotation of the pair of first transmission shafts, any claw hook arranged on the other first transmission shaft passes through one of the first assembly notches; A number of first fixed blades are fixedly arranged on the inner cavity side wall of one side of the assembly housing. The number of first fixed blades are arranged at intervals along the length direction of the assembly housing. The cutting edge part of any one of the first fixed blades faces the top wall of the inner cavity of the assembly housing, and any one of the first assembly notches is located between one pair of adjacent first fixed blades; A number of second fixed blades are fixedly arranged on the inner cavity side wall of the other side of the assembly housing. The number of second fixed blades are arranged at intervals along the length direction of the assembly housing. The cutting edge part of any one of the second fixed blades faces the top wall of the inner cavity of the assembly housing, and any one of the second assembly notches is located between one pair of adjacent second fixed blades; A number 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 cutting edge part 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 cutting edge part of any cutting blade arranged on the other first transmission shaft passes through the gap between one pair of adjacent second fixed blades.

[0008] Furthermore, this equipment also includes: a transverse splitting module, which is arranged on the main body of the frame and the assembly housing and is used for splitting the entangled and agglomerated crop straws picked up by the claw hooks.

[0009] Furthermore, the transverse splitting module includes: The guiding hole is opened at the top of the assembly housing. The guiding hole is an elongated hole, which is arranged along the length direction of the assembly housing, and the guiding hole communicates with the inner cavity of the assembly housing; The guiding rod is fixedly arranged at the top of the assembly housing. The axis of the guiding rod is parallel to the axis of the guiding hole; The bearing member is movably arranged in the guiding hole, and the bearing member is slidably connected with the guiding rod; A plurality of splitting teeth are fixedly arranged at the bottom of the bearing member, and the plurality of splitting teeth are equally spaced along the length direction of the bearing member; A pair of return springs are sleeved on the guiding rod. One end of the return spring is connected to the guiding rod, and the other end of the return spring is connected to the bearing member. The bearing member is located between the pair of return springs; The driving assembly is arranged on the frame body, and the driving assembly is connected with the bearing member for driving the bearing member to slide along the axial direction of the guiding rod.

[0010] Furthermore, the plurality of splitting teeth are serrated, and the cutting edges of the plurality of splitting teeth all face the bottom port of the assembly housing for cutting crop straws.

[0011] Furthermore, the driving assembly includes: The protective housing is fixedly arranged on the side plate; The bearing plate is fixedly arranged on the inner wall of the protective housing; The turntable is rotatably arranged on the bearing plate, and the turntable is located in the inner cavity of the protective housing; The assembly column is fixedly arranged on the end face of one end of the turntable. The assembly column is arranged along the axial direction of the turntable, and the assembly column is located on the outer circumference of the turntable; The bush is sleeved on the assembly column, and the bush is rotatably connected with the assembly column; The assembly hole is opened on the side plate, and the assembly hole communicates with the inner cavity of the frame body; The guiding pulley group is fixedly arranged on the side plate, and the guiding pulley group is matched with the position of the port of the assembly hole; The motor is fixedly arranged on the bearing plate, and the output shaft of the motor is connected with the turntable for driving the turntable to rotate; The traction rope is movably inserted into the assembly hole. The traction rope passes through between the fixed pulleys of the guiding pulley group. One end of the traction rope is fixedly connected with the bush, and the other end of the traction rope is fixedly connected with the bearing member for pulling the bearing member to slide.

[0012] Furthermore, 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.

[0013] Furthermore, this equipment also includes: The second transmission shaft is arranged at the bottom of the main body of the frame. The two ends of the second transmission shaft are respectively rotationally connected to a pair of side plates of the main body of the frame. The second transmission shaft is connected to the driving device. A pair of first transmission shafts are located between the second transmission shaft and the rotary tillage device; A plurality of dividing boxes are fixedly arranged on the second transmission shaft. The plurality of dividing boxes are distributed in a circumferential array around the second transmission shaft; The spiral blades are fixedly arranged on the circumferential side wall of the second transmission shaft. The spiral blades are arranged spirally around the second transmission shaft. The spiral blades are located in the cavity between the plurality of dividing boxes. The outer circumference of the spiral blades is fixedly connected to the plurality of dividing boxes; The third transmission shaft is arranged at the bottom of the main body of the frame. The two ends of the third transmission shaft are respectively rotationally connected to a pair of side plates of the main body of the frame. The third transmission shaft is connected to the driving device. The second transmission shaft is 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 radially along the third transmission shaft. The plurality of rotary cutting blades are arranged at equal intervals along the axial direction of the third transmission shaft and are used for cutting crop straws.

[0014] A soil preparation device for straw crushing, mixing and covering and returning to the field according to an embodiment of the present invention has the following beneficial effects: 1. By respectively arranging a plurality of claw hooks on a pair of first transmission shafts and using the driving device to drive the pair of first transmission shafts to rotate in opposite directions, the pair of first transmission shafts drive the claw hooks to grab the crop straws in the cultivated soil and disassemble them, so as to solve the problem that the existing soil preparation machine has limited disassembly and separation effect on the crop roots in the soil.

[0015] 2. By using the claw hook with a hook handle part, a curved hook part and a hook blade part to grab the crop straws, when the claw hook rotates driven by the first transmission shaft, during the process that the curved hook part and part of the hook handle part of the claw hook pass through the first assembly notch or the second assembly notch, the inner wall of the assembly shell is used to push the crop straws located in the curved hook part to the position of the hook blade part, and the hook blade part is used to cooperate with the first fixed blade or the second fixed rod blade to cut the crop straws to prevent the crop straws from winding on the first transmission shaft.

[0016] 3. By using the claw hook with a hook handle part, a curved hook part and a hook blade part to grab the crop straws, when the claw hook rotates driven by the first transmission shaft, the crop straws in the soil under the pair of first transmission shafts are conveyed to the space above a plurality of first fixed blades and a plurality of second fixed blades, so that the cutting blades arranged on the pair of first transmission shafts cooperate with the first fixed blades and the second fixed blades to further crush the crop straws, so as to enhance the disassembly effect of the present device on the entangled and agglomerated crop straws.

[0017] 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

[0018] Figure 1 is a three-dimensional diagram according to the first embodiment of the present invention; Figure 2 It is a schematic diagram of the internal structure of the assembly housing according to the first embodiment of the present invention; Figure 3 It is a 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; Figure 4 It is a schematic diagram of assembling 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; Figure 5 It is a schematic diagram of the assembly of a driving assembly according to the first embodiment of the present invention; Figure 6 A parts diagram of an assembled housing according to Embodiment 1 of the present invention; Figure 7 It is a schematic diagram of assembling a bearing member and a plurality of split teeth according to the second embodiment of the present invention.

[0019] Description of the accompanying drawings: 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-division frame, 52-spiral blade, 6-third transmission shaft, 61-rotary cutting blade, 7-lateral splitting module, 71-guide hole, 72-guide rod, 721-reset spring 73-bearing member, 31-split tooth, 741-protective shell, 742-bearing plate, 743-turntable, 431-assembly column, 7432-sleeve, 744-assembly hole, 745-guide pulley block, 7451-fixed pulley, 746-traction rope. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to further illustrate the present invention.

[0021] The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or rear, etc., are only with reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustration and not for limiting the present invention. In addition, in all embodiments, the same reference numerals represent the same components.

[0022] Embodiment 1 As Figure 1 shown, this embodiment provides a soil preparation device for straw crushing, mixing and covering and returning to the field, which includes: a frame main body 1, a rotary tillage device 2, a pair of first transmission shafts 3, a plurality of claw hooks 31, an assembly housing 4 and a driving device (not shown in the figure); the frame main body 1 is connected to an external tractor and is driven by the tractor to move; the rotary tillage device 2 is arranged at the tail end of the frame main body 1 and is used for rotary tillage of the cultivated soil; a pair of first transmission shafts 3 are arranged in parallel at the bottom of the frame main body 1, and both ends of any one of the first transmission shafts 3 are respectively rotatably connected to the side plates 11 on both sides of the frame main body 1; a plurality of claw hooks 31 are arranged on the circumferential side walls of the pair of first transmission shafts 3 and are used for grasping crop straws; the assembly housing 4 is arranged at the bottom of the frame main body 1, the assembly housing 4 is fixedly connected to the pair of side plates 11, the pair of first transmission shafts 3 are located in the inner cavity of the assembly housing 4, and the bottom of the assembly housing 4 is designed in an open manner; the driving device is arranged on the frame main 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 and is used for driving the pair of first transmission shafts 3 to rotate in opposite directions, that is, driving the first transmission shaft 3 on the side relatively close to the head end of the frame main body 1 to rotate clockwise, and driving the first transmission shaft 3 on the side relatively close to the tail end of the frame main body 1 to rotate counterclockwise.

[0023] Preferably, in this embodiment, the user can set a radar on the frame main body 1 and a controller electrically connected thereto, so as to detect the density of the crop straws scattered on the surface of the cultivated land by the radar and feed back the detection data to the controller, and use the controller to control the driving device according to the detection data of the radar, thereby adjusting the operation efficiency of the pair of first transmission shafts 3, the second transmission shaft 5, the third transmission shaft 6 and the rotary tillage device 2, so as to ensure the operation quality of the straw crushing, mixing and covering operation of the crop straws by this device, improve the operation efficiency of the straw crushing, mixing and covering operation of the crop straws by this device, and further improve the intelligent operation degree of this device.

[0024] Furthermore, as Figure 1 、 2As shown in FIGS. 4, the claw hook 31 includes: a hook handle portion 311, a bent 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 bent hook portion 312 is fixedly arranged at the end of the hook handle portion 311 and is used for grasping crop straws; the hook blade portion 313 is fixedly arranged on the hook handle portion 311 and is used for cutting crop straws.

[0025] Further, as Figures 1 to 4 shown, this device further includes: 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; the plurality of first assembly notches 41 are opened on the side wall of one side of the assembly housing 4, and any one of the first assembly notches 41 communicates with the inner cavity of the assembly housing 4. During the rotation of a pair of first transmission shafts 3, any claw hook 31 arranged on one of the first transmission shafts 3 passes through one of the first assembly notches 41; the plurality of second assembly notches 42 are opened on the side wall of the other side of the assembly housing 4, and any one of the second assembly notches 42 communicates with the inner cavity of the assembly housing 4. During the rotation of a pair of first transmission shafts 3, any claw hook 31 arranged on the other first transmission shaft 3 passes through one of the first assembly notches 41; the plurality of first fixed blades 43 are fixedly arranged on the inner cavity side wall of one side of the assembly housing 4, and the plurality of first fixed blades 43 are arranged at intervals along the length direction of the assembly housing 4. The cutting edge portion of any one of the first fixed blades 43 faces the top wall of the inner cavity of the assembly housing 4, and any one of the first assembly notches 41 is located between a pair of adjacent first fixed blades 43; the plurality of second fixed blades 44 are fixedly arranged on the inner cavity side wall of the other side of the assembly housing 4, and the plurality of second fixed blades 44 are arranged at intervals along the length direction of the assembly housing 4. The cutting edge portion of any one of the second fixed blades 44 faces the top wall of the inner cavity of the assembly housing 4, and any one of the second assembly notches 42 is located between a pair of adjacent second fixed blades 44; the plurality of cutting blades 32 are fixedly arranged on the circumferential side walls of a pair of first transmission shafts 3. During the rotation of a pair of first transmission shafts 3, the cutting edge portion 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 cutting edge portion 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.

[0026] In this embodiment, by arranging a plurality of claw hooks 31 on two reversely rotating first drive shafts 3, when the pair of first drive shafts 3 rotate in opposite directions, the claw hooks 31 on the pair of first drive shafts 3 cooperate with each other to pick up the crop straw located below the gap between the pair of first drive shafts 3, and drive the crop straw to pass through the gap between the pair of first drive shafts 3 and displace it to the upper side of the gap between the pair of first drive shafts 3, so as to enhance the picking effect of this equipment on the crop straw; after the crop straw is displaced to the upper side of the gap between the pair of first drive shafts 3, the claw hooks 31 arranged on the pair of first drive shafts 3 for picking up the crop straw move away from each other, splitting the picked-up crop straw to the left and right sides of the pair of first drive shafts 3, and using the hook blade portions 313 of the claw hooks 31, 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 to cooperate to cut the crop straw; for the crop straw that is wound and agglomerated (such as the straw of leguminous crops that is easy to agglomerate), after the claw hooks 31 pick it up to the upper side of the gap between the pair of first drive shafts 3, during the process that the claw hooks 31 arranged on the pair of first drive shafts 3 move away from each other, the wound and agglomerated crop straw slides towards the hook handle portion 311 of the claw hook 31 under the pulling of the claw hook 31, and the hook blade portion 313 of the claw hook 31 and the cutting blade 32 are used to cut the wound and agglomerated crop straw, so as to enhance the disassembly efficiency and disassembly effect of this equipment on the wound and agglomerated crop straw, and at the same time, it can effectively prevent the crop straw with a large agglomerated volume from staying in the cavity between the pair of first drive shafts 3 and the assembly housing 4, avoiding adverse effects on the crop straw picking efficiency of this equipment.

[0027] Compared with the prior art equipment for straw crushing and mixing and returning to the field operation (such as a straw crushing and planting integration system in cultivated land disclosed in a Chinese invention patent with the authorization announcement number CN113574998B) which first uses a picking thorn roller to pick up the crop straw in the cultivated land soil and then uses the picking needles of the picking thorn roller to cooperate with the grooves on the collection cylinder arranged behind it to cut the crop straw, this equipment picks up the crop straw by arranging a plurality of claw hooks 31 on a pair of reversely rotating first drive shafts 3, so that when the pair of first drive shafts 3 pick up the crop straw by using the claw hooks 31, before the hook blade portions 313 of the claw hooks 31, 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 cooperate to cut the crop straw, the claw hooks 31 arranged on the pair of first drive shafts 3 cooperate with each other to disassemble the wound and agglomerated crop straw, preventing the wound and agglomerated crop straw from staying in the inner cavity of the assembly housing 4 and causing adverse effects on the operation efficiency of this equipment.

[0028] Further, as Figures 1 to 3As shown in the figure, the device further includes a lateral splitting module 7, which is arranged on the rack body 1 and the assembly housing 4 and is used for splitting the entangled and agglomerated crop straws picked up by the claw hooks 31.

[0029] Furthermore, as Figures 1 to 3 shown in FIGS. 5 and 6, the lateral splitting module 7 includes a guiding hole 71, a guiding rod 72, a bearing member 73, a plurality of splitting teeth 731, a pair of return springs 721 and a driving assembly; the guiding hole 71 is opened at the top of the assembly housing 4, the guiding hole 71 is a long hole, the guiding hole 71 is arranged along the length direction of the assembly housing 4, and the guiding hole 71 communicates with the inner cavity of the assembly housing 4; the guiding rod 72 is fixedly arranged at the top of the assembly housing 4, and the axis of the guiding rod 72 is parallel to the axis of the guiding hole 71; the bearing member 73 is movably arranged in the guiding hole 71, and the bearing member 73 is slidably connected with the guiding rod 72; a plurality of splitting teeth 731 are fixedly arranged at the bottom of the bearing member 73, and the plurality of splitting teeth 731 are equally spaced along the length direction of the bearing member 73; a pair of return springs 721 are sleeved on the guiding rod 72, one end of the return spring 721 is connected with the guiding rod 72, the other end of the return spring 721 is connected with the bearing member 73, and the bearing member 73 is located between the pair of return springs 721; the driving assembly is arranged on the rack body 1, and the driving assembly is connected with the bearing member 73 and is used for driving the bearing member 73 to slide axially along the guiding rod 72; 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, pick up the crop straws in the cultivated soil upward, and convey them into the cavity between the pair of first transmission shafts 3 and the top wall of the inner cavity of the assembly housing 4 through the gap between the pair of first transmission shafts 3. As the pair of first transmission shafts 3 further rotate, the claw hooks 31 that grab the crop straws move away from each other, thereby pulling apart the entangled and agglomerated crop straws they grab, making the device suitable for grabbing the crop straws of corn crops with developed roots and also suitable for grabbing the leguminous crop straws that are easy to entangle and agglomerate. Therefore, the device is suitable for the straw crushing and mixing and returning operation of the cultivated land where corn crops are planted and leguminous crops are selected as cover crops.

[0030] Furthermore, as Figure 2 shown in 5 FIGS., a plurality of splitting teeth 731 are serrated, and the cutting edges of the plurality of splitting teeth 731 all face the bottom port of the assembly housing 4 and are used for cutting the crop straws. In the process of the claw hooks 31 arranged on the pair of first transmission shafts 3 pulling apart the entangled and agglomerated crop straws above the gap between the pair of first transmission shafts 3, the splitting teeth 731 are used to cut the crop straws, further improving the disassembly efficiency of the device for the entangled and agglomerated crop straws.

[0031] Furthermore, as Figures 1 to 3, as shown in Figure 5, the drive assembly includes: a protective housing 741, a carrier plate 742, a turntable 743, an assembly column 7431, a bushing 7432, an assembly hole 744, a guiding pulley set 745, a motor (not shown in the figure), and a traction rope 746; the protective housing 741 is fixedly arranged on the side plate 11; the carrier plate 742 is fixedly arranged on the inner wall of the protective housing 741; the turntable 743 is rotatably arranged on the carrier plate 742, and the turntable 743 is located in the inner cavity of the protective housing 741; the assembly column 7431 is fixedly arranged on the end face of one end of the turntable 743, the assembly column 7431 is arranged along the axial direction of the turntable 743, and the assembly column 7431 is located on the outer circumference of the turntable 743; the bushing 7432 is sleeved on the assembly column 7431, and the bushing 7432 is rotatably connected with the assembly column 7431; the assembly hole 744 is opened on the side plate 11, and the assembly hole 744 communicates with the inner cavity of the frame body 1; the guiding pulley set 745 is fixedly arranged on the side plate 11, and the position of the guiding pulley set 745 matches the position of the port of the assembly hole 744; the motor is fixedly arranged on the carrier plate 742, and the output shaft of the motor is connected with the turntable 743 for driving the turntable 743 to rotate; The traction rope 746 is movably inserted into the assembly hole 744, the traction rope 746 passes between the fixed pulleys 7451 of the guiding pulley set 745, one end of the traction rope 746 is fixedly connected with the bushing 7432, and the other end of the traction rope 746 is fixedly connected with the carrier 73 for pulling the carrier 73 to slide.

[0032] Furthermore, as Figure 1As shown in the figure, the present device further comprises: a second transmission shaft 5, a plurality of dividing boxes 51, spiral blades 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 both ends of the second transmission shaft 5 are rotatably connected to a pair of side plates 11 of the frame body 1 respectively. The second transmission shaft 5 is connected to the driving device. A pair of first transmission shafts 3 are located between the second transmission shaft 5 and the rotary tillage device 2; a plurality of dividing boxes 51 are fixedly arranged on the second transmission shaft 5, and the plurality of dividing boxes 51 are circumferentially and arrayedly distributed around the second transmission shaft 5. By arranging a plurality of dividing boxes 51 on the second transmission shaft 5, the present device is convenient for, during the forward movement of the device, the dividing frame to dig out the cultivated land soil towards the tail end direction of the frame body 1, so as to dig out the crop roots inside the cultivated land soil to the cultivated land surface, thereby reducing the fixing effect of the cultivated land soil on the crop roots and enhancing the crushing effect of the rotary tillage device 2 on the crop roots; the spiral blades 52 are fixedly arranged on the circumferential side wall of the second transmission shaft 5, the spiral blades 52 are spirally arranged around the second transmission shaft 5, the spiral blades 52 are located in the cavity between the plurality of dividing boxes 51, and the circumferential outer edge of the spiral blades 52 is fixedly connected to the plurality of dividing boxes 51. By arranging the spiral blades 52 on the second transmission shaft 5, the present device is convenient for, during the forward movement of the device, using the spiral blades 52 to laterally push a part of the soil in the ridge platform structure of the cultivated land into the furrow, so as to turn out the crop roots to the cultivated land surface, and by fixedly connecting the circumferential outer edge of the spiral blades 52 to the plurality of dividing boxes 51, the structural strength of the spiral blades 52 is enhanced; the third transmission shaft 6 is arranged at the bottom of the frame body 1, and both ends of the third transmission shaft 6 are rotatably connected to a pair of side plates 11 of the frame body 1 respectively. The third transmission shaft 6 is connected to the driving device. 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 one of the rotary cutting blades 61 is arranged along the radial direction of the third transmission shaft 6, and the plurality of rotary cutting blades 61 are equidistantly arranged along the axial direction of the third transmission shaft 6 for cutting crop straws.

[0033] 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 direction of 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 up 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 connected to make it dispersed; 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 off the crop straw to prevent the crop straw from being entangled on 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, so as to chop 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 crushing effect of the device on the crop straw.

[0034] 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, so that the third transmission shaft 6 is used to drive a plurality of 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 a plurality of splitting frames arranged thereon to rotate. During the movement of the equipment forward, the splitting frame digs the cultivated land soil toward the rear 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 addition, during the rotation of the second transmission shaft 5, the second transmission shaft 5 drives the spiral blades 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.

[0035] In this embodiment, after the claw hooks 31 provided on a pair of first transmission shafts 3 drive the crop straws to be wound and agglomerated into the cavity between the pair of first transmission shafts 3 and the inner top wall of the assembly housing 4, the claw hooks 31 provided on the pair of first transmission shafts 3, as the pair of first transmission shafts 3 further rotate, tighten the wound and agglomerated crop straws. At the same time, the motor drives the turntable 743 to rotate, so that the assembly column 7431 fixedly provided on the end face of the turntable 743 drives the traction rope 746 to pull the carrier 73 to reciprocally slide along the guide of the guide rod 72. Furthermore, a plurality of splitting teeth 731 provided at the bottom of the carrier 73 are used to cut the wound and agglomerated crop straws transmitted by the claw hooks 31 provided on the pair of first transmission shafts 3 to the space between the pair of first transmission shafts 3 and the inner surface of the assembly housing 4, so that as the first transmission shafts 3 further rotate, the claw hooks 31 provided on the pair of first transmission shafts 3 can disassemble the agglomerated crop straws.

[0036] Embodiment Two As Figures 1 to 3 shown in FIGS. 5 and 7, on the basis of Embodiment One, the difference in this embodiment is that the splitting teeth 731 are in the shape of short rods, and any one of the splitting teeth 731 is vertically arranged at the bottom of the carrier 73 along the height direction of the frame body 1.

[0037] In this embodiment, after the claw hooks 31 provided on a pair of first transmission shafts 3 transmit the crop straws to the cavity between the pair of first transmission shafts 3 and the inner surface of the assembly housing 4, the short-rod-shaped splitting teeth 731 provided at the bottom of the carrier 73 are inserted into the wound and agglomerated crop straws. During the process that the driving assembly drives the carrier 73 to reciprocally slide along the guide of the guide rod 72, the carrier 73 drives the splitting teeth 731 to shake and disperse the wound and agglomerated crop straws.

[0038] It should be noted that in this specification, the term "comprising", "including" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, the elements defined by the statement "comprising..." do not preclude the existence of additional identical elements in the process, method, article or device including the said elements.

[0039] Although the content of the present invention has been introduced in detail through the above preferred embodiments, it should be understood that the above description should not be construed as a limitation of the present invention. After those skilled in the art have read the above content, various modifications and substitutions to the present invention will be obvious. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims

1. A land preparation device for straw crushing, mixing and covering and returning to the field, characterized in that, including: a rotary tillage device, arranged at the tail end of the main frame body, for rotary tillage of arable land soil; a pair of first transmission shafts, arranged in parallel at the bottom of the main frame body, and both ends of any one of the first transmission shafts are rotatably connected to the side plates on both sides of the main frame body; a plurality of claw hooks are arranged on the circumferential side walls of the pair of first transmission shafts for grasping crop straws; an assembly housing, arranged at the bottom of the main frame body, the assembly housing is fixedly connected to the pair of side plates, the pair of first transmission shafts are located in the inner cavity of the assembly housing, and the bottom of the assembly housing is designed to be open; a driving device, arranged on the main frame body, the driving device is connected to the rotary tillage device, and the driving device is connected to the pair of first transmission shafts for driving the pair of first transmission shafts to rotate in opposite directions.

2. The land preparation equipment for straw crushing, mixing and covering and returning to the field according to claim 1, characterized in that The claw hook includes: a hook handle portion, fixedly arranged on the circumferential side wall of the first transmission shaft, and the hook handle portion is arranged along the radial direction of the first transmission shaft; a bent hook portion, fixedly arranged at the end of the hook handle portion for grasping the crop straw; a hook blade portion, fixedly arranged on the hook handle portion for cutting the crop straw.

3. The land preparation equipment for straw crushing, mixing and covering and returning to the field according to claim 1, characterized in that, It further includes: a plurality of first assembly notches, opened on the side wall of one side of the assembly housing, any one of the first assembly notches communicates with the inner cavity of the assembly housing, and during the rotation of the pair of first transmission shafts, any one of the claw hooks arranged on one of the first transmission shafts passes through one of the first assembly notches; a plurality of second assembly notches, opened on the side wall of the other side of the assembly housing, any one of the second assembly notches communicates with the inner cavity of the assembly housing, and during the rotation of the pair of first transmission shafts, any one of the claw hooks arranged on the other first transmission shaft passes through one of the first assembly notches; a plurality of first fixed blades, fixedly arranged on the inner cavity side wall of one side of the assembly housing, the plurality of first fixed blades are arranged at intervals along the length direction of the assembly housing, the cutting edge portion of any one of the first fixed blades faces the top wall of the inner cavity of the assembly housing, and any one of the first assembly notches is located between a pair of adjacent first fixed blades; a plurality of second fixed blades, fixedly arranged on the inner cavity side wall of the other side of the assembly housing, the plurality of second fixed blades are arranged at intervals along the length direction of the assembly housing, the cutting edge portion of any one of the second fixed blades faces the top wall of the inner cavity of the assembly housing, and any one of the second assembly notches is located between a pair of adjacent second fixed blades; a plurality of cutting blades, fixedly arranged on the circumferential side walls of the pair of first transmission shafts, and during the rotation of the pair of first transmission shafts, the cutting edge portion of any one of the cutting blades arranged on one of the first transmission shafts passes through the gap between a pair of adjacent first fixed blades, and the cutting edge portion of any one of the cutting blades arranged on the other first transmission shaft passes through the gap between a pair of adjacent second fixed blades.

4. The land preparation equipment for straw crushing, mixing and covering and returning to the field according to claim 1, characterized in that, Further comprising: a horizontal splitting module, disposed on the rack body and the assembly housing, for splitting the wound and agglomerated crop straw picked up by the claw hooks.

5. The land preparation equipment for straw crushing, mixing and covering and returning to the field according to claim 4, characterized in that, The horizontal splitting module comprises: A guiding hole, opened at the top of the assembly housing, the guiding hole being a long strip hole, the guiding hole being arranged along the length direction of the assembly housing, and the guiding hole communicating with the inner cavity of the assembly housing; A guiding rod, fixedly arranged at the top of the assembly housing, the axis of the guiding rod being parallel to the axis of the guiding hole; A carrier, movably arranged in the guiding hole, the carrier being slidably connected to the guiding rod; A plurality of splitting teeth, fixedly arranged at the bottom of the carrier, the plurality of splitting teeth being equally spaced along the length direction of the carrier; A pair of return springs, sleeved on the guiding rod, one end of the return spring being connected to the guiding rod, the other end of the return spring being connected to the carrier, and the carrier being located between the pair of return springs; A driving assembly, arranged on the rack body, the driving assembly being connected to the carrier, for driving the carrier to slide along the axial direction of the guiding rod.

6. The land preparation equipment for straw crushing, mixing and covering for returning to the field according to claim 5, characterized in that, The plurality of splitting teeth are serrated, and the cutting edges of the plurality of splitting teeth all face the bottom port of the assembly housing, for cutting the crop straw.

7. The land preparation equipment for straw crushing, mixing and covering for returning to the field according to claim 6, characterized in that, The driving assembly comprises: A protective housing, fixedly arranged on the side plate; A bearing plate, fixedly arranged on the inner wall of the protective housing; A turntable, rotatably arranged on the bearing plate, the turntable being located in the inner cavity of the protective housing; An assembly column, fixedly arranged on the end face of one end of the turntable, the assembly column being arranged along the axial direction of the turntable, and the assembly column being located on the outer circumference of the turntable; A bushing, sleeved on the assembly column, the bushing being rotatably connected to the assembly column; An assembly hole, opened on the side plate, the assembly hole communicating with the inner cavity of the rack body; A guiding pulley group, fixedly arranged on the side plate, the guiding pulley group being matched with the position of the port of the assembly hole; A motor, fixedly arranged on the bearing plate, the output shaft of the motor being connected to the turntable, for driving the turntable to rotate; A traction rope, movably inserted into the assembly hole, the traction rope passing through between the fixed pulleys of the guiding pulley group, one end of the traction rope being fixedly connected to the bushing, and the other end of the traction rope being fixedly connected to the carrier, for pulling the carrier to slide.

8. The land preparation equipment for straw crushing, mixing and covering and returning to the field according to claim 5, 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 carrier along the height direction of the rack body.

9. The land preparation equipment for straw crushing, mixing and covering returning to the field according to claim 1, characterized in that, Further comprising: A second transmission shaft, arranged at the bottom of the rack body, both ends of the second transmission shaft being rotatably connected to a pair of the side plates of the rack 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 tillage device; A plurality of dividing frames, fixedly arranged on the second transmission shaft, the plurality of dividing frames being circumferentially and arrayed around the second transmission shaft; The spiral blade is fixedly arranged on the circumferential side wall of the second transmission shaft. The spiral blade is arranged spirally around the second transmission shaft. The spiral blade is located in the cavity between the several divided boxes, and the outer circumferential edge of the spiral blade is fixedly connected with the several divided boxes; The third transmission shaft is arranged at the bottom of the frame body. The two ends of the third transmission shaft are respectively rotatably connected with a pair of the side plates of the frame body. The third transmission shaft is connected with the driving device, and the second transmission shaft is located between the third transmission shaft and the first transmission shaft; Several rotary cutting blades are fixedly sleeved on the third transmission shaft. Any one of the rotary cutting blades is arranged radially along the third transmission shaft. The several rotary cutting blades are arranged at equal intervals along the axial direction of the third transmission shaft and are used for cutting crop straws.

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