Multi-directional adjustable straw cleaning device in front of stripless cultivation seeder

Abstract

This invention provides a multi-directional adjustable straw removal device for a front-mounted strip-tillage seeder, comprising: a suspension bracket fixedly installed on the front frame of the strip-tillage seeder; an operating angle adjustment component connected to the suspension bracket via a connecting component; a front-to-back position adjustment component hinged to the operating angle adjustment component via a pin and a slip-lock bolt; a straw removal wheel assembly assembled and fixed to the lower end of the front-to-back position adjustment component; an operating width adjustment plate assembled and connected to the operating angle adjustment component via a pin; and shock-absorbing springs hinged at both ends to the operating angle adjustment component and the connecting component, respectively. The entire straw removal device is installed at the front of the strip-tillage seeder, forming a front-to-back tandem two-stage straw removal system with the built-in straw removal device of the strip-tillage seeder. This device solves the problems of difficulty in accurately matching the straw removal position, width, and operating angle under different straw coverage and complex surface conditions, as well as the incomplete cleaning and poor seedbed preparation quality of single-stage straw removal systems.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a multi-directional adjustable straw clearing device positioned in front of a strip-shaped minimally invasive seeder. Background Technology

[0002] Conservation tillage, characterized by straw mulching and no-till or reduced-till seeding, offers significant ecological and economic benefits in terms of water conservation, soil fertility improvement, and soil erosion control. However, during strip reduced-till seeding, the large amount of straw residue on the surface severely restricts the quality of seeding. Excessive straw accumulation can clog the furrow opener of the seeder, significantly reducing its maneuverability in the field. Simultaneously, the "straw-clamping" phenomenon caused by straw being pressed into the seed furrow directly leads to poor seed-soil contact, resulting in decreased germination rates and uneven seedling growth. This has become a key technical bottleneck hindering the large-scale application of conservation tillage.

[0003] Currently, existing straw removal devices still have many technical defects in practical production applications: First, they lack operational adaptability. Most existing devices adopt a fixed structural design with a single adjustment dimension, making it impossible to flexibly adjust the straw removal width and operating angle according to different planting patterns, crop row spacing, and straw coverage in different regions, resulting in large fluctuations in straw removal effect. Second, they have poor ability to dynamically follow the shape of the ground. The rigidly connected straw removal components are significantly affected by the flatness of the field surface, making it easy for them to miss or over-penetrate the soil, resulting in incomplete cleaning of the sowing strip or excessive soil disturbance. Third, it is difficult to balance straw removal capacity and operation quality. Existing minimally invasive seeders are usually only equipped with a single-stage straw removal device. Under full straw coverage conditions, single-stage straw removal is difficult to completely remove residual straw in the sowing strip, which can easily cause straw clogging and "stuck straw" problems in the seed furrow, seriously affecting the consistency of seedbed preparation quality and the reliability of sowing operations.

[0004] Therefore, developing a pre-stubble removal device with multi-directional adjustment function, good surface contour performance, and the ability to form a front-to-back two-stage straw removal system with the built-in straw removal device of the seeder is of great engineering application value for improving the seedbed environment under conservation tillage conditions and ensuring the accuracy of sowing operations. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this invention provides a multi-directional adjustable straw removal device that is placed in front of a strip-shaped minimally invasive seeder. This device, installed in front, forms a two-stage straw removal system connected in series with the seeder's built-in seedbed straw removal device. This effectively solves the technical problems of difficulty in accurately matching the straw removal position, width, and operating angle under different straw coverage and complex surface conditions, as well as the incomplete cleaning and poor seedbed preparation quality of single-stage straw removal systems.

[0006] To achieve the above objectives, the present invention provides a multi-directional adjustable straw clearing device positioned in front of a strip-shaped minimally invasive seeder, comprising:

[0007] The suspension bracket is fixedly installed on the front frame of the strip tillage seeder;

[0008] The working angle adjustment component is connected to the suspension bracket via a connecting component;

[0009] The front and rear position adjustment component is hinged to the working angle adjustment component via a pin and a hinge bolt;

[0010] The straw cleaning wheel assembly is assembled and fixed to the lower end of the front and rear position adjustment component;

[0011] The working width adjustment plate is assembled and connected to the working angle adjustment component via a pin.

[0012] The shock-absorbing spring is hinged at both ends to the working angle adjustment component and the connecting component, respectively.

[0013] The multi-directional adjustable straw removal device is installed at the front of the strip-shaped minimally invasive seeder, forming a two-stage straw removal system connected in series with the built-in straw removal device of the strip-shaped minimally invasive seeder.

[0014] In some embodiments, the straw cleaning wheel assembly includes:

[0015] The straw cleaning wheel has multiple circular through holes arranged equidistantly around its center, and the teeth of the straw cleaning wheel have open teeth.

[0016] The straw cleaning wheel bearing seat is positioned and fixed to the straw cleaning wheel;

[0017] The drive shaft is positioned and fixed to the straw cleaning wheel bearing seat through a central circular through hole;

[0018] The straw cleaning wheel, the straw cleaning wheel bearing seat, and the drive shaft are concentrically installed.

[0019] In some embodiments, the front-to-back position adjustment component includes:

[0020] The front and rear position adjustment plate has multiple pentagonal mounting holes arranged linearly and equidistantly. The front and rear position adjustment plate is positioned and fixed to the straw cleaning wheel assembly through the drive shaft.

[0021] The first circular tube is welded and fixed to surface A of the front and rear position adjustment plate at a certain angle;

[0022] The offset bolt is welded and fixed to the B side of the front and rear position adjustment plate at a certain angle.

[0023] In some embodiments, the work angle adjustment component includes:

[0024] A perforated rectangular tube, wherein a circular through hole is formed on surface A and multiple circular through holes are formed on surface B in a linearly equidistant arrangement;

[0025] The second circular tube passes through the circular through hole on surface A of the perforated rectangular tube and is welded and fixed.

[0026] The working angle adjustment plate is welded and fixed to the perforated rectangular tube. The working angle adjustment plate is provided with an upper angle adjustment through hole and a lower straight groove symmetrical to its vertical center line. Two hinged bolts pass through the upper angle adjustment through hole and the lower straight groove respectively. Then, a pin passes through the upper hinged bolt with a hole, the first round tube and the lower hinged bolt with a hole in sequence to realize the positioning and fixing of the front and rear position adjustment components, thereby realizing the adjustment of the straw cleaning wheel's angle.

[0027] The first ear plate is welded and fixed to the B side of the perforated rectangular tube.

[0028] In some embodiments, a limiting inclined surface is provided on one side of the perforated rectangular tube to limit the vertical floating stroke of the straw cleaning wheel; by releasing and locking the hinge bolt, the front and rear position adjustment component can be deflected along the deflection angle adjustment through hole to realize the adjustment of the straw cleaning wheel's working deflection angle.

[0029] In some embodiments, the working width adjustment plate has a plurality of positioning holes arranged at equal intervals, including one positioning hole that is assembled with the offset bolt for positioning and fixing the working width adjustment plate and the front and rear position adjustment component. The remaining positioning holes are used for different width adjustments of the straw cleaning device. A pin passes through different positioning holes to meet the different width operation requirements of the straw cleaning device.

[0030] In some embodiments, the suspension bracket includes:

[0031] The working height adjustment plate has multiple height adjustment holes arranged at equal intervals along the vertical direction. The basic soil penetration depth of the straw cleaning wheel can be adjusted by changing the position of the mounting bolt in different height adjustment holes.

[0032] The support frame, wherein the working height adjustment plate is welded and fixed to the inner side of the support frame;

[0033] U-bolts are used to position and fix the strip tillage seeder to the front frame by passing through the circular through holes on the support frame.

[0034] In some embodiments, the connecting component includes:

[0035] A perforated square tube has multiple circular through holes arranged at equal intervals.

[0036] The first U-shaped ear plate and the second U-shaped ear plate are respectively welded and fixed to both ends of the perforated square tube;

[0037] The first U-shaped ear plate is connected to one end of the shock-absorbing spring, and the second U-shaped ear plate is connected to the second round tube, forming a transition support structure for the straw cleaning device.

[0038] In some embodiments, the damping springs respectively position and fix the first ear plate of the working angle adjustment component and the first U-shaped ear plate of the connecting component.

[0039] In some embodiments, the damping spring is equipped with an adjustment knob, by which the preload of the damping spring is adjusted.

[0040] Compared with the prior art, the present invention has the following advantages:

[0041] The multi-directional adjustable straw removal device provided by this invention, positioned in front of a strip-shaped minimally invasive seeder, effectively solves the technical problems of insufficient operating efficiency, limited adjustment dimensions, and weak surface contouring ability of existing minimally invasive seeders with single-stage cleaning mechanisms under full straw coverage conditions. By integrating the front and rear position adjustment components of the cleaning wheel, the operating width adjustment plate, and the operating angle adjustment components, it achieves precise adaptation to different seeder installation spaces, crop planting row spacing, and field straw coverage density, significantly improving the machine's operational adaptability and versatility. The open structure design of the straw removal wheel teeth not only ensures continuous and stable rolling of the cleaning wheel on wet and slippery surfaces or under high straw coverage conditions, but also simultaneously achieves preliminary breaking of the surface soil of the seedbed, effectively improving the looseness of the seedbed and enhancing the stability of the operation process. The synergistic effect of the shock-absorbing spring and the suspension bracket gives the device excellent dynamic surface contouring performance, ensuring that the straw removal wheel maintains a constant soil penetration depth when operating in uneven fields.

[0042] The multi-directional adjustable straw removal device provided by this invention, which is installed in front of a strip-shaped minimally invasive seeder, is an independent functional accessory. It forms a two-stage straw removal system in series with the straw removal device built into the seeder. Through the complementary functions of front coarse cleaning and rear fine cleaning, this system significantly reduces the straw residue rate in the seeding strip, fundamentally solving the problems of straw clogging in the furrow opener and seed gaps caused by straw "clamping" in the seed furrow. It significantly improves the consistency of seedbed equipment quality and provides a reliable technical guarantee for improving the emergence rate and plant growth uniformity of no-till seeding operations.

[0043] The multi-directional adjustable straw removal device provided by this invention, which is placed in front of a strip-shaped minimally invasive seeder, not only comprehensively improves the adaptability of the operation, but also effectively optimizes the seedbed preparation environment under conservation tillage conditions, providing key technical support for the large-scale mechanized promotion and application of conservation tillage technology. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the multi-directional adjustable straw clearing device placed in front of a strip-shaped minimally invasive seeder, as shown in an embodiment of the present invention.

[0045] Figure 2 This is a schematic diagram of the straw cleaning wheel assembly shown in an embodiment of the present invention;

[0046] Figure 3 This is a schematic diagram of the front and rear position adjustment component shown in an embodiment of the present invention;

[0047] Figure 4 This is a schematic diagram of the deflection angle adjustment component shown in an embodiment of the present invention;

[0048] Figure 5 This is a schematic diagram of the suspension bracket shown in an embodiment of the present invention;

[0049] Figure 6 This is a schematic diagram of the connecting component shown in an embodiment of the present invention;

[0050] In the attached figures, the following labels are used:

[0051] 1-Suspension bracket;

[0052] 11-Working height adjustment plate;

[0053] 12-Support frame;

[0054] 13-U-bolt;

[0055] 2-Working angle adjustment component;

[0056] 21- Rectangular tube with perforation;

[0057] 22-Second circular tube;

[0058] 23-Operating angle adjustment plate;

[0059] 24 - First ear plate;

[0060] 3-Connecting components;

[0061] 31-Perforated square tube;

[0062] 32-First U-shaped ear plate;

[0063] 33-Second U-shaped ear plate;

[0064] 4- Front and rear position adjustment components;

[0065] 41 - Front and rear position adjustment plate;

[0066] 42-First circular tube;

[0067] 43 - Offset bolt;

[0068] 5- Straw cleaning wheel assembly;

[0069] 51-Straw cleaning wheel;

[0070] 52-Straw cleaning wheel bearing housing;

[0071] 53-Drive shaft;

[0072] 6-Working width adjustment plate;

[0073] 7-Shock-absorbing spring. Detailed Implementation

[0074] In view of the fact that existing minimal tillage seeders are generally only equipped with a single-stage straw removal device, which is prone to straw clogging and "straw trapping" in the seed furrow under full straw coverage, and that existing straw removal devices have technical defects such as poor operational adaptability, single adjustment dimension and lack of effective dynamic contouring ability, this invention provides a multi-directional adjustable straw removal device that is placed in front of a strip minimal tillage seeder.

[0075] For details, see Figure 1-6 An embodiment of the present invention provides a multi-directional adjustable straw removal device for a front-mounted strip-tillage seeder, comprising: a suspension bracket 1, fixedly installed on the front frame of the strip-tillage seeder; a working angle adjustment component 2, the suspension bracket 1 being connected to the working angle adjustment component 2 via a connecting component 3; a front-rear position adjustment component 4, hinged to the working angle adjustment component 2 via a pin and a slip bolt; a straw removal wheel assembly 5, assembled and fixed to the lower end of the front-rear position adjustment component 4; a working width adjustment plate 6, assembled and connected to the working angle adjustment component 2 via a pin; and a shock-absorbing spring 7, with its two ends respectively hinged to the working angle adjustment component 2 and the connecting component 3; wherein, the multi-directional adjustable straw removal device is installed in the front of the strip-tillage seeder as a whole, forming a front-rear series two-stage straw removal system with the built-in straw removal device of the strip-tillage seeder.

[0076] The straw-cleaning wheel assembly 5 in this embodiment includes: a straw-cleaning wheel 51 with multiple circular through holes arranged equidistantly around its center; the wheels of the straw-cleaning wheel 51 have open teeth that simultaneously break up the soil and increase rolling friction; a straw-cleaning wheel bearing seat 52, which is positioned and fixed to the straw-cleaning wheel 51 by bolts; and a drive shaft 53, which is positioned and fixed to the straw-cleaning wheel bearing seat 52 through the central circular through holes. The straw-cleaning wheel 51, the straw-cleaning wheel bearing seat 52, and the drive shaft 53 are concentrically arranged to ensure that the straw-cleaning wheel 51 penetrates the soil to a consistent depth at all points along its axial direction. In this embodiment, the straw-cleaning wheel assembly is used to clean straw from the seedbed and improve soil structure. The entire assembly is fixedly installed with bolts to the through holes in the front and rear position adjustment components of the straw-cleaning wheel.

[0077] In this embodiment, the front and rear position adjustment component 4 is used to adjust the front and rear working positions of the straw cleaning wheel to ensure that the straw cleaning device can be adapted to different machine models. It includes: a front and rear position adjustment plate 41 with multiple pentagonal mounting holes arranged linearly and equidistantly. The straw cleaning wheel 51 is positioned and fixed to the front and rear position adjustment plate 41 by the drive shaft 53. By changing the installation position of the drive shaft 53 on the front and rear position adjustment plate 41, the longitudinal working position of the straw cleaning wheel 51 along the forward direction of the machine can be adjusted; a first circular tube 42, which is welded and fixed to the A side of the front and rear position adjustment plate 41 at a certain angle; and an offset bolt 43, which is welded and fixed to the B side of the front and rear position adjustment plate 41 at a certain angle (the A side and the B side are not shown in the figure, representing one side and the other side of the front and rear position adjustment plate).

[0078] In this embodiment, the working angle adjustment component 2 is used to adjust the installation angle between the two straw-cleaning wheels to ensure that the straw-cleaning device can maintain a high-efficiency straw-cleaning effect under different straw coverage densities. It includes:

[0079] A perforated rectangular tube 21 has a circular through hole on its A side and multiple circular through holes arranged linearly and equidistantly on its B side (A and B sides are not shown in the figure, representing one side and the other side of the perforated rectangular tube); a second circular tube 22 passes through the circular through hole on the A side of the perforated rectangular tube 21 and is welded and fixed; a working angle adjustment plate 23 is welded and fixed to the perforated rectangular tube 21, and the working angle adjustment plate 23 has an upper angle adjustment through hole and a lower straight groove symmetrical to its vertical center line. Two hinged bolts pass through the upper angle adjustment through hole and the lower straight groove respectively, and then a pin passes through the upper hinged bolt ball head, the first circular tube and the lower hinged bolt ball head in sequence to realize the positioning and fixing of the front and rear position adjustment component 4, thereby realizing the angle adjustment of the straw cleaning wheel 51; a first ear plate 24 is welded and fixed to the B side of the perforated rectangular tube 21.

[0080] In this embodiment, a limiting inclined surface is provided on one side of the perforated rectangular tube 21 to limit the up and down floating stroke of the straw cleaning wheel 51; by releasing and locking the hinge bolt, the front and rear position adjustment component 4 can be deflected along the deflection angle adjustment through hole to realize the working deflection angle adjustment of the straw cleaning wheel 51.

[0081] In this embodiment, the working width adjustment plate 6 is used to adjust the working width of the straw clearing device. The working width can be adjusted according to different row spacing requirements to ensure that the straw clearing device can meet different agronomic operation requirements. It has multiple positioning holes arranged at equal intervals, including one positioning hole that is assembled with the offset bolt 43 for positioning and fixing the working width adjustment plate 6 and the front and rear position adjustment component 4. The remaining positioning holes, for example, are five, used for different width adjustments of the straw clearing device. A pin passes through different positioning holes to meet the different width operation requirements of the straw clearing device.

[0082] Specifically, the working width adjustment plate 6 has multiple circular through holes, five of which are linearly and equidistantly arranged circular through holes for adjusting the working width. By passing a pin through the designated working width adjustment hole and the circular through hole on the working angle adjustment component 2, the different working widths of the straw cleaning device can be adjusted. The other side has a separate circular through hole through which the offset bolt 43 is passed to position and fix the straw cleaning wheel 51.

[0083] In this embodiment, the suspension bracket 1 is used to install and fix the straw clearing device on the front frame of the strip tillage seeder. It can realize the adjustment of different soil penetration depths of the straw clearing wheel 51, provide stable support for the entire straw clearing device, bear and distribute the forces generated during operation, and maintain the stability of the entire device. It includes: a working height adjustment plate 11, which has multiple height adjustment holes arranged in the vertical direction. The basic soil penetration depth of the straw clearing wheel can be adjusted by changing the position of the mounting bolt in different height adjustment holes; a support frame 12, on which the working height adjustment plate 11 is welded and fixed to the inner side of the support frame 12; and a U-bolt 13, which is positioned and fixed to the front frame of the strip tillage seeder by passing through the circular through hole on the support frame 12.

[0084] In this embodiment, the connecting component 3 includes: a perforated square tube 31 with multiple circular through holes arranged linearly; a first U-shaped ear plate 32 and a second U-shaped ear plate 33, which are respectively welded and fixed to both ends of the perforated square tube 31; wherein, the first U-shaped ear plate 32 is connected to one end of the shock-absorbing spring 7, and the second U-shaped ear plate 33 is connected to the second circular tube 22, forming a transition support structure for the straw cleaning device.

[0085] In this embodiment, the shock-absorbing spring 7 is used to position and fix the first ear plate 24 of the working angle adjustment component 2 and the first U-shaped ear plate 32 of the connecting component 3 respectively by bolts. It can play a conformal shock absorption role, so that the straw cleaning wheel 51 can float up and down during operation to adapt to different working terrains. The shock-absorbing spring 7 is equipped with an adjustment knob. By rotating the adjustment knob, the preload of the shock-absorbing spring can be adjusted, which can provide dynamic deformation compensation and preload when the straw cleaning device floats with the undulation of the ground.

[0086] The multi-directional adjustable straw-clearing device of this invention uses the lateral pushing force generated by the passive rotation of a straw-clearing wheel with open teeth to continuously and evenly push the straw on the surface of the sowing strip to the rows on both sides of the seedbed. The open structure design of the wheel teeth significantly improves the soil grip of the straw-clearing wheel and ensures continuous and stable operation under complex working conditions, while simultaneously completing the initial breaking of the surface soil of the sowing strip. Through multi-dimensional combination adjustment of front and rear position adjustment components, working width adjustment plate, and working angle adjustment components, the device can be precisely adapted to the installation space of different seeder models, crop planting row spacing, and field straw coverage. At the same time, the dynamic surface contouring function achieved by the synergistic action of shock-absorbing springs and suspension brackets ensures a constant depth of straw-clearing wheel penetration into the soil when the device operates on complex and undulating terrain. This device adopts a front-mounted mounting method, which together with the built-in straw removal device of the seeder forms a front-to-back two-stage straw removal system. It fundamentally solves the problems of straw clogging and seed scavenging caused by straw in the seed furrow, which are difficult to overcome by single-stage straw removal devices under full straw coverage conditions. It significantly improves the consistency of seedbed preparation quality and provides a solid and reliable technical guarantee for strip-tillage seeding operations under conservation tillage conditions.

[0087] The multi-directional adjustable straw clearing device provided by the present invention, which is placed in front of a strip-shaped minimal tillage seeder, uses a straw clearing wheel assembly with open teeth to achieve the overall collection and directional pushing of straw by utilizing the continuous lateral pushing force generated by its passive rotation. The open design on the wheel teeth also has the functions of increasing grip friction and preliminary breaking of surface soil, laying the foundation for subsequent high-quality seedbed preparation.

[0088] The multi-directional adjustable straw clearing device provided by the present invention, which is placed in front of a strip-shaped minimal tillage seeder, has multi-directional adjustment capabilities. Through the front and rear position adjustment components, the working width adjustment plate and the working angle adjustment components, it can flexibly adapt to the assembly space, crop row spacing and straw coverage density of different machine models, thereby improving the machine's operational applicability and environmental adaptability.

[0089] The combination design of the suspension bracket and shock-absorbing spring of the multi-directional adjustable straw removal device placed in front of the strip-shaped minimal tillage seeder provided by the present invention enables the device to have dynamic conformal and shock absorption performance, ensuring the constant depth of the straw removal wheel into the soil, and effectively avoiding straw leakage or excessive disturbance to the surface soil.

[0090] The multi-directional adjustable straw removal device provided by this invention, which is mounted on the front of a strip-shaped minimally invasive seeder, forms a two-stage straw removal system in series with the straw removal device built into the seeder. By connecting the front and built-in straw removal devices in series, the problem of straw clogging and "straw trapping" in the seed furrow that is easy to occur when single-stage straw removal is used under full straw conditions is solved, thereby improving the preparation quality and operational stability of the seed strip.

[0091] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only.

[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-directional adjustable straw-clearing device positioned in front of a strip-shaped minimally invasive seeder, characterized in that: include: The suspension bracket is fixedly installed on the front frame of the strip tillage seeder; The working angle adjustment component is connected to the suspension bracket via a connecting component; The front and rear position adjustment component is hinged to the working angle adjustment component via a pin and a hinge bolt; The straw cleaning wheel assembly is assembled and fixed to the lower end of the front and rear position adjustment component; The working width adjustment plate is assembled and connected to the working angle adjustment component via a pin. The shock-absorbing spring is hinged at both ends to the working angle adjustment component and the connecting component, respectively. The multi-directional adjustable straw removal device is installed at the front of the strip-shaped minimally invasive seeder, forming a two-stage straw removal system connected in series with the built-in straw removal device of the strip-shaped minimally invasive seeder.

2. The multi-directional adjustable straw-clearing device positioned in front of a strip-shaped minimally invasive seeder according to claim 1, characterized in that: The straw cleaning wheel assembly includes: The straw cleaning wheel has multiple circular through holes arranged equidistantly around its center, and the teeth of the straw cleaning wheel have open teeth. The straw cleaning wheel bearing seat is positioned and fixed to the straw cleaning wheel; The drive shaft is positioned and fixed to the straw cleaning wheel bearing seat through a central circular through hole; The straw cleaning wheel, the straw cleaning wheel bearing seat, and the drive shaft are concentrically installed.

3. The multi-directional adjustable straw-clearing device positioned in front of a strip-shaped minimally invasive seeder according to claim 2, characterized in that: The front and rear position adjustment component includes: The front and rear position adjustment plate has multiple pentagonal mounting holes arranged linearly and equidistantly. The front and rear position adjustment plate and the straw cleaning wheel are positioned and fixed by the drive shaft. The first circular tube is welded and fixed to surface A of the front and rear position adjustment plate at a certain angle; The offset bolt is welded and fixed to the B side of the front and rear position adjustment plate at a certain angle.

4. The multi-directional adjustable straw-clearing device positioned in front of a strip-shaped minimally invasive seeder according to claim 1, characterized in that: The working angle adjustment component includes: A perforated rectangular tube, wherein a circular through hole is formed on surface A and multiple circular through holes are formed on surface B in a linearly equidistant arrangement; The second circular tube passes through the circular through hole on surface A of the perforated rectangular tube and is welded and fixed. The working angle adjustment plate is welded and fixed to the perforated rectangular tube. The working angle adjustment plate is provided with an upper angle adjustment through hole and a lower straight groove symmetrical to its vertical center line. Two hinged bolts pass through the upper angle adjustment through hole and the lower straight groove respectively. Then, a pin passes through the upper hinged bolt with a hole, the first round tube and the lower hinged bolt with a hole in sequence to realize the positioning and fixing of the front and rear position adjustment components, thereby realizing the adjustment of the straw cleaning wheel's angle. The first ear plate is welded and fixed to the B side of the perforated rectangular tube.

5. The multi-directional adjustable straw-clearing device positioned in front of a strip-shaped minimally invasive seeder according to claim 4, characterized in that: A limiting inclined surface is provided on one side of the perforated rectangular tube to limit the vertical floating stroke of the straw cleaning wheel; by releasing and locking the hinge bolt, the front and rear position adjustment component can be deflected along the deflection angle adjustment through hole to realize the operation angle adjustment of the straw cleaning wheel.

6. The multi-directional adjustable straw-clearing device positioned in front of a strip-shaped minimally invasive seeder according to claim 3, characterized in that: The working width adjustment plate has multiple positioning holes arranged linearly and equidistantly, including one positioning hole that is assembled with the offset bolt for positioning and fixing the working width adjustment plate and the front and rear position adjustment components. The remaining positioning holes are used for different width adjustments of the straw cleaning device. A pin passes through different positioning holes to meet the different width operation requirements of the straw cleaning device.

7. The multi-directional adjustable straw-clearing device positioned in front of a strip-shaped minimally invasive seeder according to claim 1, characterized in that: The suspension bracket includes: The working height adjustment plate has multiple height adjustment holes arranged at equal intervals along the vertical direction. The basic soil penetration depth of the straw cleaning wheel can be adjusted by changing the position of the mounting bolt in different height adjustment holes. The support frame, wherein the working height adjustment plate is welded and fixed to the inner side of the support frame; U-bolts are used to position and fix the strip tillage seeder to the front frame by passing through the circular through holes on the support frame.

8. The multi-directional adjustable straw-clearing device positioned in front of a strip-shaped minimally invasive seeder according to claim 4, characterized in that: The connecting component includes: A perforated square tube with multiple linearly distributed circular through holes; The first U-shaped ear plate and the second U-shaped ear plate are respectively welded and fixed to both ends of the perforated square tube; The first U-shaped ear plate is connected to one end of the shock-absorbing spring, and the second U-shaped ear plate is connected to the second round tube, forming a transition support structure for the straw cleaning device.

9. The multi-directional adjustable straw-clearing device positioned in front of a strip-shaped minimally invasive seeder according to claim 8, characterized in that: The shock-absorbing springs respectively position and fix the first ear plate of the working angle adjustment component and the first U-shaped ear plate of the connecting component.

10. The multi-directional adjustable straw-clearing device positioned in front of a strip-shaped minimally invasive seeder according to claim 9, characterized in that: The damping spring is equipped with an adjustment knob, which can be rotated to adjust the preload of the damping spring.

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