Straw picking and supporting device and straw smashing and returning operation machine

Abstract

The invention provides a straw picking and supporting device and a straw smashing operation machine. The straw picking and supporting device comprises a rack, at least one first picking and supporting mechanism and a second picking and supporting mechanism, and a first connecting end is arranged on the rack and used for being detachably connected with the straw smashing mechanism; the first picking and supporting mechanism comprises a divider and a first picking and supporting assembly, and the side, away from the rack, of the divider is provided with a divider tip; the two first picking and supporting assemblies are arranged on the two flow dividing sides of the divider at intervals in the first direction so that the first picking and supporting assemblies can pick up straw divided by the divider corresponding to the roots of crops and throw the straw to an inlet of the straw smashing mechanism. The two second picking and supporting mechanisms are arranged at the two ends, in the first direction, of the rack correspondingly so that the second picking and supporting mechanisms can correspond to the side rows of the planting area, and the second picking and supporting mechanisms are used for picking up straw in the narrow rows adjacent to the side rows and throwing the straw to an inlet of the straw smashing mechanism; the picking and supporting parts of the first picking and supporting assembly and the second picking and supporting mechanism have specified flexibility so as to slide on the surface of the mulching film.

Description

Technical Field

[0001] This application relates to the field of agricultural equipment technology, and in particular to a straw lifting device and a straw crushing and returning machine. Background Technology

[0002] To increase soil temperature, retain soil moisture, and promote early maturity and high yield of crops, plastic film is usually installed. The residual film can be recycled during the subsequent harvest. Under mechanized operations, farmers can improve efficiency by combining residual film recycling with straw crushing.

[0003] In the combined operation of residual film recycling and straw crushing, straw crushing and returning to the field is placed before residual film recycling. Its effect on straw disposal is crucial, especially for flat planting patterns. In order to improve the secondary utilization rate of residual film, it is necessary to ensure the integrity of the film during recycling. Therefore, the existing crushing device is relatively high off the ground to avoid cutting the film.

[0004] However, the straw that lies flat on the ground is outside the working range of the crushing device and cannot be effectively crushed. As a result, the uncrushed straw will be collected together with the plastic film in the subsequent residual film recycling process, making it difficult to effectively separate the film and straw. This leads to an increase in the impurity content of the recycled residual film, which seriously affects the recycling rate of the residual film and the effectiveness of its secondary use. Summary of the Invention

[0005] The first aspect of this application provides a straw-lifting device, which includes:

[0006] A frame is provided for installation on the inlet side of the straw crushing mechanism, and a first connecting end is provided on the frame for detachable connection to the straw crushing mechanism.

[0007] At least one first lifting mechanism is connected to the frame. The dimensions of the first lifting mechanism along the first direction are adapted to the dimensions of the wide row of the planting area along the first direction. The first lifting mechanism includes a divider and a first lifting assembly. The divider has a dividing tip on the side facing away from the frame and is at a specified distance from the ground. Two first lifting assemblies are spaced apart along the first direction on two diversion sides of the divider so that the first lifting assemblies can pick up the straw after it has been divided by the divider and throw it to the inlet of the straw crushing mechanism.

[0008] The second lifting mechanism is provided at both ends of the frame along the first direction so that the second lifting mechanism is set in the side row of the planting area. The second lifting mechanism is used to pick up the straw in the narrow row adjacent to the side row and throw it to the inlet of the straw crushing mechanism.

[0009] Wherein, the first direction is perpendicular to the travel direction of the straw lifting device; the lifting parts of the first lifting component and the second lifting mechanism have specified flexibility so as to be able to slide on the surface of the mulch film.

[0010] In some modified embodiments of the first aspect of this application, the aforementioned straw lifting device is provided with a first brush on the side of the divider facing the ground;

[0011] The first brush has a second specified flexibility so that the first brush can slide on the surface of the mulch film.

[0012] In some modified embodiments of the first aspect of this application, the aforementioned straw lifting device, wherein

[0013] The first lifting component includes a second brush;

[0014] Two second brushes are symmetrically arranged relative to the divider in the first direction, and the second brushes are arranged to rotate around the second direction to pick up the straw after it has been divided by the divider and throw it to the inlet of the straw crushing mechanism at the root of the crop.

[0015] The second direction is set at a specified angle to the first direction.

[0016] In some modified embodiments of the first aspect of this application, the aforementioned straw lifting device, wherein

[0017] The divider includes a first dividing element and a second dividing element;

[0018] The first dividing member and the second dividing member are arranged sequentially along the first direction. The ends of the first dividing member and the second dividing member that are away from the frame are connected to each other to form the dividing tip. The ends of the first dividing member and the second dividing member that are facing the frame are far apart from each other in the first direction.

[0019] The radial section of the second brush is parallel to the adjacent first or second dividing member; or

[0020] The radial section of the second brush forms a second specified angle with the adjacent first or second dividing member, the second specified angle being smaller than the angle between the adjacent first or second dividing member and the first direction.

[0021] In some modified embodiments of the first aspect of this application, the aforementioned straw lifting device further includes a drive roller;

[0022] The drive roller is disposed on the side of the divider facing the frame. The drive roller is rotatable around the first direction. The two ends of the rotation shaft of the drive roller are respectively connected to the two first lifting components. The outer surface of the drive roller around its axial direction is used to contact the ground surface. The drive roller can rotate around the first direction in response to the movement of the straw lifting device and drive the first lifting components to rotate synchronously, so as to pick up the straw that has been divided by the divider and throw it to the inlet of the straw crushing mechanism.

[0023] In some modified embodiments of the first aspect of this application, the aforementioned straw lifting device, wherein the outer surface of the drive roller is provided with a plurality of actuating portions protruding from the outer surface, the actuating portions being able to press into the ground surface and slide on the surface of the mulch film in response to the rotation of the drive roller.

[0024] In some modified embodiments of the first aspect of this application, the aforementioned straw lifting device, wherein the working part is an arc-shaped structure around the first direction;

[0025] Several of the forces acting around the drive roller are arranged in a spiral pattern.

[0026] In some modified embodiments of the first aspect of this application, the aforementioned straw lifting device includes a third brush, wherein the second lifting mechanism comprises a third brush.

[0027] The third brush is arranged opposite to the second brush in the first direction, and the third brush is rotatably arranged around the third direction to pick up the straw in the narrow row adjacent to the side row and throw it to the inlet of the straw crushing mechanism.

[0028] Wherein, the third direction is different from the second direction, and the third direction is set at a third specified angle with the first direction.

[0029] In some modified embodiments of the first aspect of this application, the aforementioned straw lifting device, wherein the second lifting mechanism further includes a soil removal disc;

[0030] The soil removal disc is disposed on the side of the third brush away from the first lifting mechanism. The soil removal disc is rotatable around the first direction. The rotation axis of the soil removal disc is connected to the third brush. The outer surface of the soil removal disc around its axial direction is used to press into the ground surface. The soil removal disc can rotate around the first direction in response to the movement of the straw lifting device and drive the third brush to rotate synchronously.

[0031] The second aspect of this application provides a straw crushing and returning machine, which includes:

[0032] A straw crushing mechanism, wherein the inlet side of the straw crushing mechanism is provided with a second connecting end and a third connecting end, and the second connecting end is used for detachably connecting to a power vehicle;

[0033] A straw lifting and supporting device, the straw lifting and supporting device comprising a frame, at least one first lifting and supporting mechanism and a second lifting and supporting mechanism;

[0034] The frame is provided with a first connecting end for detachably connecting to the third connecting end;

[0035] The first lifting mechanism is connected to the frame, and the size of the first lifting mechanism along the first direction is adapted to the size of the wide row of the planting area along the first direction. The first lifting mechanism includes a divider and a first lifting component. The divider has a dividing tip on the side away from the frame, and the divider is at a specified distance from the ground. Two first lifting components are spaced apart along the first direction on the two diversion sides of the divider, so that the first lifting components can pick up the straw after it has been divided by the divider and throw it to the inlet of the straw crushing mechanism.

[0036] Two second lifting mechanisms are respectively arranged at both ends of the frame along the first direction so that the second lifting mechanisms are arranged in accordance with the side rows of the planting area. The second lifting mechanisms are used to pick up the straw in the narrow row adjacent to the side row and throw it to the inlet of the straw crushing mechanism.

[0037] Wherein, the first direction is perpendicular to the travel direction of the straw lifting device;

[0038] The lifting parts of the first lifting assembly and the second lifting mechanism have specified flexibility so that they can slide on the surface of the mulch film.

[0039] Compared to existing technologies, the straw lifting device provided in this application is installed on the inlet side of the straw crushing mechanism. It diverts the fallen straw using a divider and guides it towards the first lifting component. The first lifting component then lifts and throws the diverted straw, sending it into the straw crushing mechanism for crushing. A second lifting mechanism, positioned at the corresponding edge row, utilizes the interaction between the diverted and lifted fallen straw and the adjacent fallen straw to lift and throw it, thus sending the fallen straw at the edge row into the straw crushing mechanism for crushing. This significantly improves the crushing rate of fallen straw and prevents it from remaining on the ground, thus avoiding impurities during subsequent residual film recycling and enhancing the effectiveness of secondary utilization. Attached Figure Description

[0040] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:

[0041] Figure 1 A schematic diagram of the structure of the straw lifting device provided in this application is shown.

[0042] Figure 2 A schematic diagram of the first structure of the first lifting mechanism in the straw lifting device provided in this application is shown.

[0043] Figure 3 A schematic diagram of a second structure of the first lifting mechanism in the straw lifting device provided in this application is shown.

[0044] Figure 4 A schematic diagram of the drive roller structure in the straw lifting device provided in this application is shown.

[0045] Figure 5 The schematic diagram illustrates the structural fit between the shaft of the drive roller and the shaft of the second brush in the straw lifting device provided in this application.

[0046] Figure 6 schematically shown Figure 5 A schematic diagram of the cross-section where the two shafts are in a mating state;

[0047] Figure 7 A schematic diagram of the structure of the second lifting mechanism in the straw lifting device provided in this application is shown.

[0048] Figure 8 A schematic diagram illustrating the angular relationship between the second brush, the third brush, and the divider is shown.

[0049] Figure 9 A schematic diagram of the structure of the straw crushing and returning machine provided in this application is shown.

[0050] Reference numerals in the attached diagrams are as follows: Frame 1, Plate 11, Frame arm 12, Inclined extension section 121, Horizontal extension section 122, First lifting mechanism 2, Divider 21, Divider tip 211, First brush 212, First dividing component 213, Second dividing component 214, First lifting assembly 22, Second brush 221, Second lifting mechanism 3, Third brush 31, Soil removal disc 32, Straw crushing mechanism 4, Second connecting end 41, Drive roller 5, Actuating part 51, Central shaft 52, Limiting protrusion 53, Sleeve 6, Limiting groove 61, First direction a, Second direction b, Third direction c. Detailed Implementation

[0051] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0052] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0053] It should be noted that in the description of this specification, the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application; the terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0054] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] In the combined operation of residual film recycling and straw crushing, straw crushing and returning to the field is placed before residual film recycling. The straw should be crushed as much as possible to ensure the smooth progress of subsequent residual film recycling. In order to improve the secondary utilization rate of residual film, it is necessary to ensure the integrity of the film during recycling. As a result, the existing crushing device is too high off the ground to avoid cutting the film. Consequently, the straw that is flat on the ground is outside the working range of the crushing device and cannot be effectively crushed. In the subsequent residual film recycling stage, the uncrushed flat straw will be collected together with the film, making it difficult to effectively separate the film and straw. This leads to an increase in the impurity content of the recycled residual film, which seriously affects the recycling rate and the effectiveness of secondary utilization of residual film.

[0056] The straw lifting device provided in this embodiment can lift and throw the straw that has fallen to the ground into the straw crushing mechanism for crushing. It can also avoid damaging the mulch film and ensure its integrity. This not only reduces the impurity rate in the mulch film recycling stage, but also improves the effectiveness of the secondary utilization of mulch film.

[0057] Example 1

[0058] Reference Appendix Figure 1 and attached Figure 9 Embodiment 1 of this application proposes a straw lifting device, which includes a frame 1, at least one first lifting mechanism 2 and a second lifting mechanism 3. The frame 1 is used to be installed on the inlet side of the straw crushing mechanism 4, and the frame 1 is provided with a first connecting end for detachably connecting to the straw crushing mechanism 4. The first lifting mechanism 2 is connected to the frame 1, and the dimension of the first lifting mechanism 2 along the first direction a is adapted to the dimension of the width of the planting area along the first direction a. The first lifting mechanism 2 includes a divider 21 and a first lifting assembly 22. The divider 21 has a dividing tip on the side opposite to the frame 1. The divider 21 is at a specified distance from the ground; two first lifting components 22 are spaced apart along the first direction a on the two diversion sides of the divider 21 so that the first lifting components 22 can pick up the straw after it has been divided by the divider 21 and throw it to the inlet of the straw crushing mechanism 4 corresponding to the crop roots; two second lifting mechanisms 3 are respectively arranged at both ends of the frame 1 along the first direction a so that the second lifting mechanisms 2 are arranged corresponding to the side rows of the planting area, and the second lifting mechanisms 3 are used to pick up the straw in the narrow row adjacent to the side row and throw it to the inlet of the straw crushing mechanism 4;

[0059] Wherein, the first direction a is perpendicular to the travel direction of the straw lifting device;

[0060] The lifting parts of the first lifting component 22 and the second lifting mechanism 3 have specified flexibility so that they can slide on the surface of the mulch film.

[0061] It is understood that the straw lifting device provided in this embodiment is mainly for the cultivation mode of planar planting, and the corresponding crops can be, but are not limited to, cotton, corn, soybeans, peanuts, rice, etc. In the planar planting mode, the planting area is usually divided into alternating wide rows and narrow rows, forming edge rows on both sides of the planting area. Wide rows are the wider intervals between adjacent rows of crops, which are conducive to ventilation and light penetration and provide space for agricultural machinery to move or harvest; narrow rows are the narrower intervals between adjacent rows of crops, which can increase the density of the crop group; edge rows are the edges of the planting area, and whether or not crops are planted can be selected as needed. The straw crushing mechanism 4 can cut and crush the straw through the internal blade structure. Accordingly, the inlet side of the straw crushing mechanism 4 faces the motor vehicle, so that when the straw crushing mechanism 4 moves with the motor vehicle, the straw can enter the space where the blade structure is located through the inlet and be cut and crushed. The straw lifting device provided in this embodiment can be set on the front side of the inlet side of the straw crushing mechanism 4 to lift up the fallen straw on the front side of the straw crushing mechanism 4 and throw it to the inlet of the straw crushing mechanism.

[0062] The frame 1 is a rigid structure that serves as the mounting medium for the straw lifting device and the straw crushing mechanism 4. It can be made of a wear-resistant and corrosion-resistant metal material, such as steel, steel alloy, or aluminum alloy. In this embodiment, the frame 1 can be uniform. Figure 1 As shown, in this configuration, frame 1 can be simultaneously connected to the first lifting mechanism 2 and the second lifting mechanism 3 before being connected as a whole to the straw crushing mechanism 4. Alternatively, frame 1 can be modular, with a portion corresponding to the first lifting mechanism 2 and a portion corresponding to the second lifting mechanism 3 connected and installed separately. Frame 1 can be connected to the straw crushing mechanism 4 via screws or snap-fit ​​connections. Frame 1 can be... Figure 1 The plate-type structure shown can also be Figure 1 The plate 11 is designed to fit into the frame arm 12. The plate 11 is attached to the outer wall of the straw crushing mechanism 1 and can be connected to the straw crushing mechanism 1 via screws. The frame arm 12 compensates for the height difference between the inlet side of the straw crushing mechanism 4 and the ground through a horizontal extension 122 that bends parallel to the ground after an inclined extension 121 towards the ground, thereby achieving contact and throwing of fallen straw. The frame arm 12 and the plate 11 can be detachably connected via ears and pins or bolts. Alternatively, the plate 11 can be integrally formed with the straw crushing mechanism 4, or the plate 11 can be part of the straw crushing mechanism 4. In this configuration, the frame arm 12 and the plate 11 can be detachably connected via ears and pins or bolts. Correspondingly, in this embodiment, the first direction a can be the width direction of the planting area, or the direction from the wide row to the narrow row.

[0063] The number of the first supporting mechanism 2 can be adjusted according to the number of wide rows in the planting area, for example, refer to the attached diagram. Figure 1 When there are two wide rows spaced apart in a certain planting area, two first supporting mechanisms 2 need to be set at intervals on the first direction a. Correspondingly, regardless of how many first supporting mechanisms 2 there are, two second supporting mechanisms 3 are set at both ends on the first direction a, that is, one or more first supporting mechanisms 2 can be set at intervals between the two second supporting mechanisms 3 as needed.

[0064] The divider 21 is a rigid structure, which can be made of metal, wood, etc. The divider 21 has a dividing tip 211 on the side facing away from the frame 1, used to insert into the gaps between straw stalks and separate the lodged straw in the direction of travel to two diversion sides, avoiding entanglement. In this embodiment, the divider 22 is set at a specified distance from the ground. The specified distance can be, but is not limited to, the radius of the straw stalk. This not only allows the dividing tip 211 to insert or contact the lodged straw, but also avoids direct contact between the dividing tip 211 and the ground, preventing damage to the mulch film. In this embodiment, only the dividing tip 211 can be set at a specified distance from the ground, with the distance gradually increasing at the end facing the frame 1, or the entire divider 22 can be set at a specified distance from the ground. In this embodiment, the divider 21 can be a single rod, simplifying the structure and saving costs while achieving the desired straw division. The divider 21 can also be a V-shaped structure, such as a V-shaped rod or V-shaped plate. Figure 2The structure shown indicates that the divider 21 includes a first divider 213 and a second divider 214. The first divider 213 and the second divider 214 are arranged sequentially along the first direction a. The ends of the first divider 213 and the second divider 214 facing away from the frame 1 are connected to each other to form the dividing tip 211. The ends of the first divider 213 and the second divider 214 facing the frame 1 are far apart from each other in the first direction a, thus not only allowing them to be inserted into the straw but also guiding and diverting it, improving the dividing effect and laying the foundation for lifting. Correspondingly, the first divider... The first dividing member 213 and the second dividing member 214 can be either rod-shaped or plate-shaped. In this embodiment, they can be set as plates extending perpendicularly to the ground, with an extension of 5-6 cm in the direction perpendicular to the ground, to form a high-strength guide surface and enhance the diversion and guiding effect. The included angle between the first dividing member 213 and the second dividing member 214 can be designed and adjusted according to actual needs, and can be, but is not limited to, between 30-90 degrees, for example, 45 degrees. At this angle, the strength of the divider is higher, the structural stability is higher, and the diversion effect of the straw along the two dividing members to both sides is better and more uniform. In this embodiment, a reinforcing member (not shown in the figure) can also be set between the two dividing members. The reinforcing member can extend along the first direction a and its two ends respectively abut against and connect the two dividing members to form a triangular distribution to enhance the strength and stability of the divider 21, while preventing the two dividing members from deforming under the impact of the straw.

[0065] In this embodiment, the first lifting component 22 is closer to the frame 1 than the divider 21, thus receiving the straw after it has been divided by the divider 1 and throwing it accordingly. In this embodiment, the first lifting component 22 can be positioned at the outermost edge of the adjacent narrow row from the wide row, so that it can reach the roots of the crop in the narrow row, thereby minimizing the amount of straw residue on the ground. Accordingly, in this embodiment, the first lifting component 22 can include, but is not limited to, a rotatable structure or a sweeping structure. As the straw lifting device moves, the rotatable structure rotates towards the frame 1 or the sweeping structure swings back and forth towards the frame 1 to throw the divided straw to the inlet of the straw crushing mechanism 4. In this embodiment, the rotatable structure or the sweeping structure can be configured to have a specified flexibility, allowing it to bend and slide on the surface of the mulch film without puncturing it. It can be, but is not limited to, a brush-like structure or a tassel-like structure, and its material can be, but is not limited to, rubber, silicone, etc. It is also understandable that the specified flexibility can be designed and adjusted according to actual needs, such as designing and adjusting according to the type of straw and its hardness, which will not be elaborated here.

[0066] The second lifting mechanism 3 is used to lift and throw the straw between the edge row and the narrow row. The second lifting mechanism 3 may also include the same rotatable structure or sweeping structure as the first lifting component 22, which will not be described in detail here. The flexibility of the rotatable structure or sweeping structure in the second lifting mechanism 3 may be the same as that of the first lifting component 22 or less. Since the edge row is the edge of the mulch film, in this embodiment, the second lifting mechanism 3 can be used to loosen the soil or turn over the edge of the mulch film to improve the convenience of subsequent residual film recycling.

[0067] Based on the above, the straw lifting device provided in this application is installed on the inlet side of the straw crushing mechanism 4. The straw divider 21 diverts the fallen straw and guides it towards the first lifting component 22. The first lifting component 22 then lifts and throws the diverted straw, sending it into the straw crushing mechanism 4 for crushing. The second lifting mechanism 3, at the corresponding edge row position, uses the adjacent unfallen straw, the diverted fallen straw, and the interpenetrating or mutually resisting action of the lifted straw to lift and throw it, thus sending the fallen straw at the edge row position into the straw crushing mechanism 4 for crushing. This lifting process does not affect the crushing of the unfallen straw by the straw crushing mechanism 4. This significantly improves the crushing rate of the fallen straw and prevents the fallen straw from remaining on the ground, thus avoiding impurities during subsequent residual film recycling and the effectiveness of secondary utilization.

[0068] Further, see attached document. Figure 2 In the straw lifting device provided in this embodiment, in a specific implementation, the divider 21 is provided with a first brush 212 on the side facing the ground; the first brush 212 has a second specified flexibility so that the first brush can slide on the surface of the mulch film.

[0069] Understandably, to prevent the divider 21 from damaging the mulch film, in this embodiment, a first brush 212 is provided on the side of the divider 21 facing the ground. This means it is provided on the side of the first divider 213 and the second divider 214 facing the ground. The first brush 212 can be perpendicular to the ground or inclined towards the frame 1, allowing it to tilt or bend towards the frame 1 as the divider 21 moves. This allows it to contact and slide on the mulch film surface, providing cushioning, protecting the mulch film from damage, and cleaning and smoothing the mulch film. In this embodiment, the second flexibility of the first brush 212 can be the same as or greater than the first flexibility, ensuring that the first brush 212 will not damage the mulch film even after long-term contact. The length of the first brush 212 can be designed and adjusted according to actual needs. When the first brush 212 is perpendicular to the ground, its length can be greater than or equal to the distance between the divider 21 and the ground, for example, 2-3 cm. When the first brush 212 is tilted, its length can be greater than the distance between the divider 21 and the ground.

[0070] Further, see attached document. Figure 2 and attached Figure 3 In this embodiment, the straw lifting device includes a first lifting component 22 comprising a second brush 221. Two second brushes 221 are symmetrically arranged relative to the divider 21 in the first direction a. The second brushes 221 are rotatably arranged around the second direction b, and are used to lift the straw that has been divided by the divider 21 at the root of the crop and throw it to the inlet of the straw crushing mechanism 4. The second direction b is set at a specified angle to the first direction a.

[0071] Understandably, to improve the success rate of throwing, a second brush 221 can be provided on the first lifting component 22 in this embodiment. The second brush 221 can be a brush structure arranged around the second direction b, which can be arranged around the outside of the ring or the outside of the disc. That is, the bristles of the brush are perpendicular or approximately perpendicular to the second direction b. The bristles of the brush can be cylindrical or strip-shaped. In this embodiment, the bristles of the brush can be bristles with the aforementioned specified flexibility, which can contact the ground and deform or bend, thereby protecting the mulch film from damage. In this embodiment, the outer radius of the second brush 221 is greater than the distance from its axis to the ground, so that it can overlap with the ground rather than insert itself during rotation, in combination with the bendable characteristics of the flexible bristles. This allows the bristles of the second brush 221 to slide on the surface of the mulch film without puncturing it. Correspondingly, in this embodiment, the rotation drive method of the second brush 221 can be an independently set drive motor. When the second brush 221 rotates around the second direction b, it can continuously and repeatedly push, roll up, and throw the straw backward, i.e., towards the side of the frame 1, by reaching the position of contact with the ground through the spaced brushes. This improves the processing rate of the diverted straw and prevents any straw from being missed. (See attached reference.) Figure 1 and attached Figure 9 In this embodiment, two second brushes 221 can be simultaneously installed on the U-shaped frame arm 12. When the frame arm 12 is located above the inlet of the straw crushing mechanism 4, that is... Figure 9 As shown, in this embodiment, the driving direction of the second brush 221 can be an upward rotation towards the frame 1, i.e., a rotation towards the frame arm 12 and then away from the frame 1. Figure 9 The second brush 221 rotates counterclockwise to avoid interference from the frame arm 12 during the throwing process. Correspondingly, when the frame arm 12 is located below the inlet of the straw crushing mechanism 4, the driving direction of the second brush 221 in this embodiment can be either a rotation towards the ground (i.e., a rotation away from the frame arm 12 and further away from the frame 1) towards the part facing the frame 1. Figure 9 The rotation is clockwise to prevent interference from the frame arm 12 during the throwing process of the straw. It is easy to understand that, corresponding to the first lifting assembly 22, the lifting part is the second brush 221. It can be understood that, referring to the attached... Figure 8 In this embodiment, the specified angle between the second direction b and the first direction a can be designed and adjusted according to actual needs, for example, 0-60 degrees, as long as the cooperation effect between the second brush 221 and the separator 21 is guaranteed. Specifically, it can depend on the setting direction of the radial section of the second brush 221. In this embodiment, the radial section of the second brush 221 can be perpendicular to the first direction a, parallel to the first separator 213 or the second separator 214, or it can be inclined with one end away from the frame 1 close to the first separator 213 or the second separator 214; the following will use... Figure 2 ,Figure 8 The second brush 221 on the left side and the first dividing member 213 adjacent to it are described in detail, with the included angle γ of the dividing tip 211 being 60 degrees as an example.

[0072] When the radial section of the second brush 221 is perpendicular to the first direction a, the second direction b is parallel to the first direction a, and the included angle between the second brush 221 and the first dividing member 213 is larger, which can accept or accommodate more of the divided straw.

[0073] When the second brush 221 ( Figure 8 When the radial section of the solid line (in the middle) satisfies the parallel condition with the first dividing member 213, the angle β between the second direction b and the first direction a is 30 degrees. In this setting, the second brush 221 can correspond to the root of the straw on the side facing the frame 1 in the traveling direction, resulting in high throwing efficiency. Moreover, the angle between the second brush 221 and the first dividing member 213 is reduced, and the straw after being divided has a small margin of movement within this angle range. The upright straw on the narrow row can cooperate with the second brush 221 to provide resistance, which is convenient for lifting and supporting the fallen straw, thereby improving the throwing effect of the second brush 221.

[0074] When the second brush 221 ( Figure 8 When the radial section of the dashed line (in the middle) forms a second specified angle with the first dividing member 213, which may be, but is not limited to, 45 degrees, the angle between the second direction a and the first direction a is 45 degrees. In this configuration, the second brush 221 can reach more of the root of the straw on the side facing the frame 1 in the direction of travel, resulting in high throwing efficiency. Furthermore, the angle between the second brush 221 and the first dividing member 213 is smaller, and the straw after being divided has almost no room for movement within this angle range, making it easier for the second brush 221 to throw it. In addition, in this configuration, the side of the second brush 221 facing the frame 1 can get closer to the narrow row, thereby making full use of the resistance of the upright straw and improving the lifting and throwing effect. It should also be noted that, with the state of parallel to the first dividing member 213 as the boundary, the maximum extent to which the radial section of the second brush 211 can be closer to the first dividing member 213 on the side away from the frame 1 in the direction of travel of the straw lifting device is 30 degrees, that is, the maximum of the second specified included angle is 30 degrees, for reference. Figure 8 The state shown.

[0075] For the two symmetrical second brushes 221, the second direction b of each can be different, which is easily understood by those skilled in the art and will not be elaborated here.

[0076] Further, see attached document. Figure 3The straw lifting device provided in this embodiment further includes a drive roller 5 in a specific implementation. The drive roller 5 is disposed on the side of the divider 21 facing the frame 1. The drive roller 5 is rotatably disposed around the first direction a. The two ends of the rotation shaft of the drive roller 1 are respectively connected to the two first lifting components 22. The outer surface of the drive roller 5 around its axial direction is used to adhere to the ground surface. The drive roller 5 can rotate around the first direction a in response to the movement of the straw lifting device and drive the first lifting components 22 to rotate synchronously, so as to pick up the straw after it has been divided by the divider 21 and throw it to the inlet of the straw crushing mechanism 4.

[0077] Understandably, to simplify the structure for driving the second brush 221, a drive roller 5 is provided in this embodiment. The drive roller 5 can be rigid or elastic, such as a metal roller or a rubber roller, as long as it does not scratch or snag the mulch film. The drive roller 5 extends along the first direction a and can serve as a support and reinforcement structure for the first divider 213 and the second divider 214. The drive roller 5 and the divider 21 form a triangular stable structure, improving the stability of the divider 21. At the same time, the outer surface of the drive roller 5, in contact with the ground, rotates due to friction with the ground as it moves with the straw lifting device, thereby providing power for the rotation of the second brush 221, eliminating the need for an additional electric drive for the second brush 221, simplifying the structure and reducing costs. It is also understood that in this embodiment, the radial dimension of the second brush 221 is larger than the radial dimension of the drive roller 5, thus the flexibility of the bristles on the second brush 221 can prevent puncturing the mulch film.

[0078] Accordingly, in order to achieve the rotation of the second brush 221 around the second direction b, refer to the attached... Figure 5 and attached Figure 6 In this embodiment, a sleeve 6 can be fitted onto both ends of the central shaft 52 of the drive roller 5. The sleeve 6 serves as the axis of the second brush 221, or the second brush 221 can be formed by setting a brush structure around the outer surface of the sleeve 6. The sleeve 6 extends along the second direction b and is fitted onto the central shaft 52 of the drive roller 5. An inclined channel extending along the second direction b can be provided inside the sleeve 6, so that the sleeve 6 can maintain its extension direction along the second direction b after the central shaft 52 is inserted. In this embodiment, a limiting groove 61 can also be provided on the inner wall of the sleeve 6, and a limiting protrusion 53 adapted to the limiting groove 61 can be provided on the outer surface of the central shaft 52. When the central shaft 52 is inserted into the sleeve 6, the limiting groove 61 and the limiting protrusion 53 cooperate to guide and limit, so that the sleeve 6 can rotate synchronously when the central shaft 52 rotates without falling out. Of course, the limiting groove 61 and the limiting protrusion 53 can also be interchanged.

[0079] Further, see attached document. Figure 3 and attachedFigure 4 In the straw lifting device provided in this embodiment, in a specific implementation, the outer surface of the drive roller 5 is provided with a plurality of action parts 51 protruding from the outer surface. The action parts 51 can respond to the rotation of the drive roller 5 to press into the ground surface and slide on the surface of the mulch film.

[0080] Understandably, to prevent slippage of the drive roller 5 during rotation from affecting the throwing action of the second brush 221, an action part 51 can be provided on the outer surface of the drive roller 5 in this embodiment. The action part 51 is a rigid or elastic structure, and it may, but is not limited to, be integrally formed with the drive roller 5. When the drive roller 5 rotates, the action part 51 can press into the ground surface and fully engage with the soil, improving the grip of the drive roller 5 and effectively crushing the compacted soil on the surface of the mulch film, laying the foundation for subsequent residual film recycling. The action part 51 may, but is not limited to, be an arc-shaped structure around the first direction a, for example... Figure 4 The arched or crescent-shaped plate shown has an arc-shaped surface in the axial direction around the drive roller 5, and its radial dimension along the drive roller 5 in the axial direction first increases and then decreases. For example, the actuating part 51 can, but is not limited to, form a circumferential cover of 15-20 degrees corresponding to the axis of the drive roller 5, and both ends in the axial direction around the drive roller 5 are transitionally connected and relatively smooth, without sharp points or corners, thereby avoiding scratching or snagging on the mulch film and effectively ensuring the integrity of the mulch film. Accordingly, in this embodiment, the maximum radial dimension of the actuating part 51 along the drive shaft 5 can be set to 1 cm, so that the pressing amount of the actuating part 51 on the ground surface is appropriate, which can both achieve the effect of breaking up the soil and avoid damaging the mulch film. Furthermore, it is understood that the outer surface of the drive roller 5 can simultaneously adhere to the ground surface; and the dimension of the actuating part 51 along the axial direction of the drive roller 5 can be 1cm, so that the actuating part 51 has a certain width of surface along the axial direction of the drive roller 5, that is, the width of the contact surface with the ground surface can be 1cm, avoiding the situation where it is too small and will puncture the mulch film, or too large and will not be able to break up the soil. In this embodiment, the number of actuating parts 51 can be designed and adjusted according to actual needs. Several actuating parts 51 can be arranged in a spiral around the drive roller, reducing the continuous downward pressure of multiple actuating parts 51 on the mulch film in a straight line and avoiding damage to the mulch film.

[0081] Further, see attached document. Figure 7 and attached Figure 8 In this embodiment, the straw lifting device includes a second lifting mechanism 3 comprising a third brush 31. The third brush 31 is positioned opposite to the second brush 221 in the first direction a. The third brush 31 is rotated around a third direction c to lift the straw in the narrow row adjacent to the side row and throw it to the entrance of the straw crushing mechanism 4. The third direction c is different from the second direction b, and the third direction c forms a third specified angle with the first direction a.

[0082] It is understandable that, in order to realize the lifting function of the second lifting mechanism 3, a third brush 31 is provided in the second lifting mechanism 3 in this embodiment. The structure of the third brush 31 can be the same as that of the second brush 221, and will not be described in detail here. In this embodiment, the axial direction of the third brush 31 forms a third specified angle δ with the first direction a. This third specified angle δ can be the same as or different from the angle β between the second direction b and the first direction a. The third specified angle δ can be 0-60 degrees. Accordingly, refer to the appendix. Figure 8 Taking the angle of the dividing tip 211 as 60 degrees and the radial section of the second brush 221 (solid line) as parallel to the first dividing member 213 as an example:

[0083] When the radial section of the third brush 31 is perpendicular to the first direction a, the third direction c is parallel to the first direction a. The third brush 31 can receive the straw after it is diverted by the second dividing member 214 and throw it independently. Under this setting, the installation of the third brush 31 is relatively simple and can be directly installed on the central shaft 52.

[0084] When the radial section of the third brush 31 is parallel to the first dividing member 213, the angle δ between the third direction c and the first direction a is 30 degrees. In this configuration, the angle between the radial section of the third brush 31 and the second dividing member 214 is γ60 degrees. Thus, the third brush 31 can cooperate with the second brush 221 during the process of lifting and throwing the straw, using the diverted fallen straw and the upright straw on the narrow row as resistance to achieve better lifting and improve throwing efficiency. Moreover, the angle between the third brush 31 and the second brush 221 is reduced, and the movable margin of the diverted straw within this angle range is small, which improves the throwing effect of the second brush 221.

[0085] Therefore, it is easy for those skilled in the art to understand that the third orientation c of each of the two third brushes 31 can be different, and will not be elaborated here. It is also easy to understand that for the second lifting mechanism 3, the lifting part can be the third brush 31.

[0086] Further, see attached document. Figure 7 In this embodiment, the straw lifting device further includes a soil-removing disc 32 in the second lifting mechanism 3. The soil-removing disc 32 is disposed on the side of the third brush 31 away from the first lifting mechanism 2. The soil-removing disc 32 is rotatably disposed around the first direction a. The rotation axis of the soil-removing disc 32 is connected to the third brush 31. The outer surface of the soil-removing disc 32 around its axial direction is used to press into the ground. The soil-removing disc 32 can rotate around the first direction a in response to the movement of the straw lifting device and drive the third brush 31 to rotate synchronously.

[0087] Understandably, in order to provide driving force for the third brush 31 and lay the foundation for subsequent residual film recycling, a soil-removing disc 32 can be set on the second lifting mechanism 3 in this embodiment. The soil-removing disc 32 is a rigid disc-shaped structure with its axis parallel to the first direction a. Its outer surface around the axis can be relatively sharp, because the mulch film at the edge is easy to adhere to the soil. In this embodiment, the soil-removing disc 32 can cut into the soil and mulch film by rotating and cutting into the soil, breaking up the soil while lifting the mulch film from the soil and carrying it to the surface. Accordingly, in this embodiment, the soil-removing disc 32 uses the friction force of cutting into the soil to achieve gripping and continuous rotation during the movement of the straw lifting mechanism. Therefore, in this embodiment, the third brush 31 is set in conjunction with the rotating shaft of the soil-removing disc 32. The specific setting method can refer to the setting method of the second brush 221 and the central shaft 52, which will not be elaborated here. Thus, the rotation of the soil-removing disc 32 can provide power for the third brush 31, simplifying the structure and reducing the cost of additional driving equipment for the third brush 31.

[0088] Example 2

[0089] Reference Appendix Figure 9 This embodiment provides a straw crushing and returning machine, which includes a straw crushing mechanism 4 and a straw lifting device. The straw crushing mechanism 4 has a second connecting end 41 and a third connecting end on its inlet side. The second connecting end 41 is used to detachably connect to a power vehicle. The straw lifting device includes a frame 1, at least one first lifting mechanism 2 and a second lifting mechanism 3.

[0090] The frame 1 is provided with a first connecting end for detachably connecting the third connecting end; the first lifting mechanism 2 is connected to the frame 1, and the dimension of the first lifting mechanism 2 along the first direction a is adapted to the dimension of the width of the planting area along the first direction a; the first lifting mechanism 2 includes a divider 21 and a first lifting assembly 22, the divider 21 has a dividing tip 211 formed on the side away from the frame 1, and the divider 21 has a specified distance from the ground; two first lifting assemblies 22 are spaced apart along the first direction a on the two diversion sides of the divider 21, so that the first lifting assembly 22 can correspond to The crop roots pick up the straw that has been diverted by the divider 21 and throw it to the entrance of the straw crushing mechanism; two second lifting mechanisms 3 are respectively arranged at both ends of the frame 1 along the first direction a so that the second lifting mechanisms 3 are arranged in accordance with the side rows of the planting area. The second lifting mechanism 3 is used to pick up the straw in the narrow row adjacent to the side row and throw it to the entrance of the straw crushing mechanism 4; wherein, the first direction a and the traveling direction of the straw lifting device satisfy the perpendicular condition; the lifting parts of the first lifting component 22 and the second lifting mechanism 3 have specified flexibility so as to be able to slide on the surface of the mulch film.

[0091] It is understood that the straw lifting device in this embodiment is the same as the straw lifting device in embodiment 1. Its structure and working principle are described in detail in embodiment 1 and will not be repeated here.

[0092] It should be noted that in the description of this specification, the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application; the terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0093] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0094] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A straw-lifting device, characterized in that, include: A frame is provided for installation on the inlet side of the straw crushing mechanism, and a first connecting end is provided on the frame for detachable connection to the straw crushing mechanism. At least one first lifting mechanism is connected to the frame. The dimensions of the first lifting mechanism along the first direction are adapted to the dimensions of the wide row of the planting area along the first direction. The first lifting mechanism includes a divider and a first lifting assembly. The divider has a dividing tip on the side away from the frame and is at a specified distance from the ground. Two first lifting assemblies are spaced apart along the first direction on two diversion sides of the divider so that the first lifting assemblies can pick up the straw after it has been divided by the divider and throw it to the inlet of the straw crushing mechanism. The second lifting mechanism is provided at both ends of the frame along the first direction so that the second lifting mechanism is set in the side row of the planting area. The second lifting mechanism is used to pick up the straw in the narrow row adjacent to the side row and throw it to the inlet of the straw crushing mechanism. Wherein, the first direction is perpendicular to the travel direction of the straw lifting device; The lifting parts of the first lifting assembly and the second lifting mechanism have specified flexibility so that they can slide on the surface of the mulch film.

2. The straw lifting device according to claim 1, characterized in that: The divider is provided with a first brush on the side facing the ground; The first brush has a second specified flexibility so that the first brush can slide on the surface of the mulch film.

3. The straw lifting and supporting device according to claim 1, characterized in that: The first lifting component includes a second brush; Two second brushes are symmetrically arranged relative to the divider in the first direction, and the second brushes are arranged to rotate around the second direction to pick up the straw after it has been divided by the divider and throw it to the inlet of the straw crushing mechanism at the root of the crop. The second direction is set at a specified angle to the first direction.

4. The straw lifting and supporting device according to claim 3, characterized in that: The divider includes a first dividing element and a second dividing element; The first dividing member and the second dividing member are arranged sequentially along the first direction. The ends of the first dividing member and the second dividing member that are away from the frame are connected to each other to form the dividing tip. The ends of the first dividing member and the second dividing member that are facing the frame are far apart from each other in the first direction. The radial section of the second brush is parallel to the adjacent first or second dividing member; or The radial section of the second brush forms a second specified angle with the adjacent first or second dividing member, the second specified angle being smaller than the angle between the adjacent first or second dividing member and the first direction.

5. The straw lifting device according to claim 1 or 4, characterized in that: It also includes drive rollers; The drive roller is disposed on the side of the divider facing the frame. The drive roller is rotatable around the first direction. The two ends of the rotation shaft of the drive roller are respectively connected to the two first lifting components. The outer surface of the drive roller around its axial direction is used to contact the ground surface. The drive roller can rotate around the first direction in response to the movement of the straw lifting device and drive the first lifting components to rotate synchronously, so as to pick up the straw that has been divided by the divider and throw it to the inlet of the straw crushing mechanism.

6. The straw lifting and supporting device according to claim 5, characterized in that: The outer surface of the drive roller is provided with a plurality of working parts protruding from the outer surface. The working parts are capable of responding to the rotation of the drive roller to press into the ground surface and slide on the surface of the mulch film.

7. The straw lifting and supporting device according to claim 6, characterized in that: The functional part is an arc-shaped structure surrounding the first direction; Several of the forces acting around the drive roller are arranged in a spiral pattern.

8. The straw lifting and supporting device according to claim 3, characterized in that: The second lifting mechanism includes a third brush; The third brush is arranged opposite to the second brush in the first direction, and the third brush is rotatably arranged around the third direction to pick up the straw in the narrow row adjacent to the side row and throw it to the inlet of the straw crushing mechanism. Wherein, the third direction is different from the second direction, and the third direction is set at a third specified angle with the first direction.

9. The straw lifting and supporting device according to claim 8, characterized in that: The second lifting mechanism also includes a soil removal plate; The soil removal disc is disposed on the side of the third brush away from the first lifting mechanism. The soil removal disc is rotatable around the first direction. The rotation axis of the soil removal disc is connected to the third brush. The outer surface of the soil removal disc around its axial direction is used to press into the ground surface. The soil removal disc can rotate around the first direction in response to the movement of the straw lifting device and drive the third brush to rotate synchronously.

10. A straw crushing and returning machine, characterized in that, It includes: A straw crushing mechanism, wherein the inlet side of the straw crushing mechanism is provided with a second connecting end and a third connecting end, and the second connecting end is used for detachably connecting to a power vehicle; A straw lifting and supporting device, the straw lifting and supporting device comprising a frame, at least one first lifting and supporting mechanism and a second lifting and supporting mechanism; The frame is provided with a first connecting end for detachably connecting to the third connecting end; The first lifting mechanism is connected to the frame, and the size of the first lifting mechanism along the first direction is adapted to the size of the wide row of the planting area along the first direction. The first lifting mechanism includes a divider and a first lifting component. The divider has a dividing tip on the side away from the frame, and the divider is at a specified distance from the ground. Two first lifting components are spaced apart along the first direction on the two diversion sides of the divider, so that the first lifting components can pick up the straw after it has been divided by the divider and throw it to the inlet of the straw crushing mechanism. Two second lifting mechanisms are respectively arranged at both ends of the frame along the first direction so that the second lifting mechanisms are arranged in accordance with the side rows of the planting area. The second lifting mechanisms are used to pick up the straw in the narrow row adjacent to the side row and throw it to the inlet of the straw crushing mechanism. Wherein, the first direction is perpendicular to the travel direction of the straw lifting device; The lifting parts of the first lifting assembly and the second lifting mechanism have specified flexibility so that they can slide on the surface of the mulch film.

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