Impurity removing device assembly

Abstract

The utility model discloses an impurity removing device assembly which comprises an impurity discharging assembly and an impurity removing assembly which are arranged front and back. The impurity removal assembly comprises a first supporting plate and a first packing auger, the first packing auger is sleeved with the first supporting plate, an impurity removal cavity is defined by the first supporting plate and the first packing auger, and smashed straw enters the impurity removal cavity through a first discharging opening and then is discharged from a first discharging opening; the impurity removing assembly comprises a volute and a second auger, the volute is arranged outside the second auger in a sleeving mode, an impurity removing cavity is defined by the volute and the second auger, and the first free end and the second free end of the volute jointly form a suction inlet with a downward opening. The straw collecting device is reasonable in structure, good in straw collecting effect and convenient for follow-up planting operation.

Description

Technical Field

[0001] This utility model relates to a technical problem in agricultural production equipment, and has a displacement cleaning device assembly. Background Technology

[0002] Returning crop straw to the field after harvesting is a common agricultural practice. Returning straw to the field can increase soil organic matter content, improve soil structure, enhance soil fertility, reduce the amount of chemical fertilizer used, and effectively avoid environmental pollution caused by straw burning.

[0003] Returning straw to the field typically involves steps such as straw crushing, straw collection, and straw return. When collecting straw, the crushed straw is discharged laterally under the action of an auger, achieving the collection effect. In practice, some of the finely crushed straw often remains in the field, which reduces the impact of straw on subsequent planting and also reduces the burden on the film-collecting machine when removing the plastic film. Utility Model Content

[0004] This utility model discloses a straw removal device assembly, which solves the technical problem in the prior art where straw is not completely collected during straw return to the field, which not only hinders subsequent planting operations but also increases the burden on the film-collecting machine when removing plastic film. The assembly features a reasonable structure, good straw collection effect, and facilitates subsequent planting operations. The technical solution adopted is as follows:

[0005] A debris removal device assembly includes a debris discharge component and a debris removal component arranged at the front and rear.

[0006] The waste removal assembly includes a first pallet and a first auger. The first pallet is sleeved outside the first auger and forms a waste removal cavity with the first auger. The first end of the waste removal cavity is closed in the axial direction, and the second end of the waste removal cavity forms a first discharge port. The first free end and the second free end of the first pallet together form a first discharge port with the opening facing upward. The crushed straw enters the waste removal cavity through the first discharge port and is discharged from the first discharge port.

[0007] The cleaning assembly includes a volute and a second auger. The volute is fitted over the second auger and together with it forms a cleaning chamber. The cleaning chamber is closed at its first axial end and forms a second discharge port at its second axial end. The first and second free ends of the volute together form a downward-facing suction port. Straw remaining in the field due to the cleaning assembly can enter the cleaning chamber through the suction port and be discharged from the second discharge port.

[0008] Based on the above technical solution, the second auger includes a second shaft and a second blade. The second blade extends spirally along the second shaft. The second shaft is also provided with fan blades. The fan blades are designed to generate guiding airflow around the second shaft when the second shaft rotates under the action of an external drive unit, so that the straw remaining in the field enters the cleaning chamber through the suction port.

[0009] Based on the above technical solution, the fan blade is fixed or hinged to the second shaft, and the fan blade avoids the second blade. When the fan blade is hinged to the second shaft, the rotation axis of the fan blade is parallel to the axis of the second shaft.

[0010] Based on the above technical solution, the fan blade is fixed on the second shaft, there are multiple fan blades and they are evenly arranged in the circumference. The fan blade includes several fan plates arranged along its extension direction. The fan plates are fixed on the second shaft and avoid the second blade. The outer edge of the second blade is also fixed with reinforcing blades overlapping each other.

[0011] Based on the above technical solution, a number of fan blades are also provided in the spiral channel formed by the second blade, and the fan blades are hinged to the second shaft through the wind plate seat.

[0012] Based on the above technical solution, the fan blade includes two vertical plates arranged opposite to each other. The two vertical plates move synchronously and are both hinged to the air plate seat. The air plate seat is fixed outside the second shaft. A connecting plate is vertically fixed to the vertical plate. The two connecting plates together form the fan blade.

[0013] Based on the above technical solution, the first auger includes a first shaft and a first blade. The first blade extends spirally along the first shaft. The first shaft includes a first intermediate shaft tube, and a first connecting shaft is fixed at both ends of the first intermediate shaft tube. The second shaft includes a second intermediate shaft tube, and a second connecting shaft is fixed at both ends of the second intermediate shaft tube.

[0014] Based on the above technical solution, a cleaning component is also included. The cleaning component and the impurity removal component are respectively arranged on both sides of the cleaning component. The cleaning component includes a third support plate and a third auger. The third support plate is sleeved outside the third auger and forms a cleaning cavity with the third auger. The first end of the cleaning cavity is closed, and the second end of the cleaning cavity forms a third discharge port. The first free end and the second free end of the third support plate together form a third discharge port with the opening facing upward.

[0015] Based on the above technical solution, the first discharge port, the suction port and the third discharge port are all funnel-shaped.

[0016] Based on the above technical solution, the suction port has an angle inclined toward the forward direction of the cleaning device assembly, and multiple cleaning components are arranged in parallel.

[0017] Beneficial effects

[0018] This utility model has a reasonable structure, with the waste removal component and the waste cleaning component arranged one after the other. The straw pulverized by the crushing unit is transferred to the waste removal chamber of the waste removal component and discharged from the first outlet. During the transfer, some straw is scattered on the field. The waste cleaning component includes a downward-facing suction inlet. Under the action of the second blade and fan blade, a guiding airflow is generated on the outer periphery of the second shaft to guide the scattered straw into the waste cleaning chamber and discharge it from the second outlet. This not only improves straw collection and keeps the ground cleaner, but also achieves automatic picking up of residual straw, replacing manual labor and avoiding impact on subsequent planting. Furthermore, it significantly reduces the workload and failure rate of the film-collecting and baling unit. Additionally, the fan blade can create a large guiding airflow and a negative pressure environment, promoting rapid straw movement and preventing blockages.

[0019] In the cleaning component of this utility model, the third tray forms an upward-facing discharge port, allowing the straw mixed in with the picked-up mulch film to fall into the tray and be discharged outward by the second auger. This can be used in conjunction with a residual film machine to prevent straw from being mixed in with the residual film after baling, thus improving the user experience. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.

[0021] Figure 1 Schematic diagram of the three-dimensional structure of this utility model Figure 1 ;

[0022] Figure 2 Schematic diagram of the three-dimensional structure of this utility model Figure 2 ;

[0023] Figure 3 : A three-dimensional structural diagram of the second auger and fan blades in Example 1;

[0024] Figure 4 : A three-dimensional structural diagram of the second auger and fan blades in Example 2;

[0025] Figure 5 : A three-dimensional structural diagram of the cleaning device assembly and the residual film machine in this utility model; Detailed Implementation

[0026] The following description and accompanying drawings fully illustrate specific embodiments described herein to enable those skilled in the art to practice them. Some embodiments may include or substitute parts and features of other embodiments. The scope of the embodiments herein encompasses the entire scope of the claims and all available equivalents thereof. Throughout this document, the terms “first,” “second,” etc., are used only to distinguish one element from another without requiring or implying any actual relationship or order between the elements. Indeed, a first element can also be referred to as a second element, and vice versa. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a structure, apparatus, or device. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the structure, apparatus, or device that includes said element. The various embodiments described herein are presented in a progressive manner, with each embodiment focusing on its differences from other embodiments; similar or identical parts between embodiments can be referred to interchangeably.

[0027] The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in this document to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing the document and for 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. Therefore, they should not be construed as limitations on the invention. In the description herein, unless otherwise specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two elements; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0028] In this document, unless otherwise stated, the term "multiple" means two or more.

[0029] In this article, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0030] In this article, the term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0031] Example 1

[0032] like Figure 1 and 2 The illustrated impurity removal device assembly includes a front-to-back impurity removal component 1, an impurity removal component 2, and a cleaning component 3.

[0033] The waste removal assembly 1 includes a first support plate 11 and a first auger 12. The first support plate 11 is generally U-shaped. The first support plate 11 is sleeved on the outside of the first auger 12 and forms a waste removal cavity with the first auger 12. The first end of the waste removal cavity is closed in the axial direction, and the second end of the waste removal cavity forms a first discharge port. The first support plate 11 includes a lower arc section. The arc section is coaxial with the first auger 12, and the first free end and the second free end of the arc section together form a first discharge port with an upward opening. The first discharge port is funnel-shaped.

[0034] The crushed straw enters the discharge chamber through the first discharge port and is discharged from the first outlet. The first auger 12 includes a first shaft and a first blade. The first blade extends spirally along the first shaft. The first shaft includes a first intermediate shaft tube, and first connecting shafts are fixed at both ends of the first intermediate shaft tube. The structure is lighter and has sufficient structural strength. The straw crushing mechanism is existing technology, as shown in the crushing mechanism of a residual film baler with application number CN202222410166.3. The crushing blade hooks up the straw on the ground, cuts and crushes it when it passes the fixed blade, and the crushed straw moves around the crushing shaft with the crushing blade, enters the discharge chamber through the first discharge port, and is discharged from the side of the first outlet. Figure 5 As shown.

[0035] In addition, the first pallet 11 extends upward from the free end near the cleaning component and then extends horizontally forward to form a protective cover 10. The protective cover 10 covers the first discharge port on the one hand and separates the discharge chamber and the cleaning chamber on the other hand.

[0036] In production practice, some of the crushed straw will scatter in the field during the transfer to the waste removal chamber. The waste removal component 2 is used to remove the straw remaining in the field. Specifically, the waste removal component 2 includes a volute 21 and a second auger 22. The volute 21 is fitted outside the second auger 22 and forms a waste removal chamber with the second auger 22. The first axial end of the waste removal chamber is closed, and the second axial end of the waste removal chamber forms a second discharge port. The volute 21 is roughly U-shaped and includes an upper arc-shaped section. The arc-shaped section is coaxial with the second auger 22. The two ends of the arc-shaped section extend downward to form a first free end and a second free end. The first free end and the second free end form a downward-opening funnel-shaped suction port, such as... Figure 2As shown, the suction inlet has an angle inclined towards the displacement direction of the cleaning device, which allows the suction inlet to cover a larger area of ​​the ground for more efficient straw removal. The inclination angle of the suction inlet is 40~60°, and in this embodiment, the inclination angle of the suction inlet is 45°. When the second auger 22 rotates rapidly in the external drive unit, a guiding airflow is generated around the second auger 22, creating a negative pressure condition. The straw remaining in the field can enter the cleaning chamber through the suction inlet and be discharged from the second discharge outlet.

[0037] like Figure 2 As shown, the suction inlet is tilted so that the second free end of the volute 21 is close to the ground. The end of the second free end includes a detachably connected rubber scraper 4. As the cleaning device moves forward, the rubber scraper 4 rubs against and smooths the ground. The detachable design makes it easier to replace the rubber scraper 4 after it wears out.

[0038] like Figure 3 As shown, the second auger 22 includes a second shaft 221 and a second blade 222. The second shaft 221 includes a second intermediate shaft tube, with second connecting shafts fixed at both ends of the second intermediate shaft tube. The second blade 222 extends spirally along the second intermediate shaft tube, and a fan blade 23 is also provided on the second intermediate shaft tube. The fan blade 23 is designed to greatly enhance the guiding airflow intensity generated on the outer periphery of the second shaft 221 when the second shaft 221 rotates under the action of the external drive unit. This allows residual straw to enter the cleaning chamber more efficiently through the suction inlet, resulting in high automation efficiency. It can replace manual picking and is ingeniously designed. By configuring different shaft rotation speeds, different directional guiding airflow forces can be obtained, facilitating the collection of broken straw and subsequent farmland operations. At the same time, it reduces the burden on the picking and baling mechanisms when removing mulch.

[0039] like Figure 3 As shown, the second intermediate shaft tube 11 is provided with four blades 3, which are evenly arranged circumferentially and extend axially along the shaft 1 in the length direction. In this embodiment, as... Figure 3 As shown, each fan blade 23 extends radially outward in the width direction. Thus, when the second shaft 221 rotates at high speed, the fan blades 23 and the second blades 222 create a negative pressure environment in the circumferential space of the second shaft 221, generating a directional airflow to guide the straw outwards quickly. Furthermore, for ease of processing, each fan blade 23 includes several fan plates arranged along its extension direction to avoid the second blades 222. The fan plates are fixed to the second intermediate shaft tube. Additionally, to avoid interference with the second blades 222 and to reduce the dimensional accuracy of the fan plates, the two corners of the fan plates near the intermediate shaft tube 11 are chamfered. In other embodiments of this invention, the fan blades 23 extend axially along the second shaft 221 in the length direction, including cases where the axis of the fan blades 23 is deflected at a small angle relative to the second shaft 221.

[0040] In this application, the width of the fan blade 23 is smaller than the width of the second blade 222, which is 30-60% of the width of the second blade 222. This ensures a larger guiding airflow and provides sufficient space around the second shaft 221 to guarantee a higher straw discharge rate.

[0041] like Figure 3 As shown, a reinforcing blade 24 is also fixedly and overlappingly on the outer edge of the second blade 222. Correspondingly, to avoid the second blade 222, the reinforcing blade 24 includes multiple length segments, each of which is fitted with the second blade 222 at a corresponding position. This improves the structural strength and service life of the second blade 222. In other embodiments of this invention, the reinforcing blade 24 is located on the outer side of the fan blade 23. When the fan blade 23 becomes loose, it can limit the radial runout of the fan blade 23, ensuring good safety in use.

[0042] The cleaning assembly 3 includes a third support plate 31 and a third auger 32. The third support plate 31 is positioned above the volute 21 and is fitted over the third auger 32, forming a cleaning chamber. The first end of the cleaning chamber is closed, and the second end forms a third discharge port. The third support plate 31 includes a lower arc-shaped section, which is coaxial with the third auger 32. The first and second free ends of the arc-shaped section together form an upward-facing third discharge port. Figure 2 As shown, the material inlet is funnel-shaped. The film-picking and baling unit, a prior art technology, is used to pick up residual film and collect and bale it. For example, as shown in application number CN202222410166.3 entitled "A Picking Mechanism and Baling Mechanism in a Residual Film Baling Machine," the picking hook may mix in stones and other debris when picking up the residual film. During operation, straw remaining in the field often gets mixed in, affecting subsequent baling operations and even causing blockages. However, the cleaning component 3 in this application allows the straw and other debris to fall into the cleaning chamber under its own weight when the picking hook transports the residual film. Figure 5 As shown, this process separates straw and other debris from the plastic film, preventing them from being fed into the baler and thus reducing the baler's failure rate.

[0043] In other embodiments of this application, multiple cleaning components 2 may be arranged in parallel to further improve the straw collection effect.

[0044] Example 2

[0045] The difference between Embodiment 2 and Embodiment 1 is that the fan blade 23 is hinged to the second shaft 221. Specifically, there are multiple fan blades 23, which are evenly arranged within the spiral channel formed by the second blade 222. Each fan blade 23 includes two opposing vertical plates 231, which move synchronously and are both hinged to the fan plate seat 24. The fan plate seat 24 is fixed outside the second shaft 221 and is fixed to the second shaft 221. Figure 4 As shown, a connecting plate 232 is vertically fixed to the upright plate 231, and the two connecting plates 232 together form the fan blade 23. The fan plate seat 24 includes two ear plates fixed outside the second shaft 221. A pin passes through the two ear plates and the two upright plates 31. A bearing is fitted at the point where the pin passes through the ear plates, so that the fan blade 23 is hinged to the fan plate seat 24. Washers are also fitted on the pin outside the two upright plates 231, and the washers press the two upright plates 231 together. This facilitates assembly and maintenance, and also enables the two upright plates 231 to move synchronously. Figure 4 As shown, the pin is set parallel to the axis of the second shaft 221.

[0046] When the second shaft 221 rotates, the fan blade 23 swings under the action of inertial force, which can enhance the guiding airflow generated on the outer periphery of the second shaft 221, so that the straw enters the cleaning chamber through the suction port.

[0047] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A cleaning device assembly, characterized in that, It includes a front and rear impurity removal component (1) and an impurity cleaning component (2); The waste removal assembly (1) includes a first pallet (11) and a first auger (12). The first pallet (11) is sleeved outside the first auger (12) and forms a waste removal cavity with the first auger (12). The first end of the waste removal cavity is closed in the axial direction, and the second end of the waste removal cavity forms a first discharge port. The first free end and the second free end of the first pallet (11) together form a first discharge port with the opening facing upward. The crushed straw enters the waste removal cavity through the first discharge port and is discharged from the first discharge port. The cleaning component (2) includes a volute (21) and a second auger (22). The volute (21) is sleeved outside the second auger (22) and forms a cleaning chamber with the second auger (22). The first axial end of the cleaning chamber is closed, and the second axial end of the cleaning chamber forms a second discharge port. The first free end and the second free end of the volute (21) together form a downward-facing suction port.

2. The cleaning device assembly according to claim 1, characterized in that, The second auger (22) includes a second shaft (221) and a second blade (222). The second blade (222) extends spirally along the second shaft (221). The second shaft (221) is also provided with a fan blade (23). The fan blade (23) is designed to generate a guiding airflow around the second shaft (221) when the second shaft (221) rotates under the action of an external drive unit.

3. The cleaning device assembly according to claim 2, characterized in that, The fan blade (23) is fixed or hinged to the second shaft (221), and the fan blade (23) avoids the second blade (222). When the fan blade (23) is hinged to the second shaft (221), the rotation axis of the fan blade (23) is parallel to the axis of the second shaft.

4. The cleaning device assembly according to claim 3, characterized in that, The fan blade (23) is fixed on the second shaft (221). There are multiple fan blades (23) and they are evenly arranged in the circumference. The fan blade (23) includes several fan plates arranged along its extension direction. The fan plates are fixed on the second shaft (221) and avoid the second blade (222). The outer edge of the second blade (222) is also fixed with a reinforcing blade (25) overlapping.

5. The cleaning device assembly according to claim 3, characterized in that, The spiral channel formed by the second blade (222) is also provided with a number of fan blades (23), which are hinged to the second shaft (221) through the wind plate seat (24).

6. The cleaning device assembly according to claim 5, characterized in that, The fan blade (23) includes two vertical plates (231) arranged opposite to each other. The two vertical plates (231) move synchronously and are both hinged to the wind plate seat (24). The wind plate seat (24) is fixed outside the second shaft (221). A connecting plate (232) is vertically fixed on the vertical plate (231). The two connecting plates (232) together form the fan blade (23).

7. The cleaning device assembly according to any one of claims 2 to 6, characterized in that, The first auger (12) includes a first shaft and a first blade. The first blade extends spirally along the first shaft. The first shaft includes a first intermediate shaft tube, and a first connecting shaft is fixed at both ends of the first intermediate shaft tube. The second shaft (221) includes a second intermediate shaft tube, and a second connecting shaft is fixed at both ends of the second intermediate shaft tube.

8. The cleaning device assembly according to any one of claims 1 to 6, characterized in that, It also includes a cleaning component (3), which and the impurity removal component (1) are respectively disposed on both sides of the cleaning component (2). The cleaning component (3) includes a third support plate (31) and a third auger (32). The third support plate (31) is sleeved outside the third auger (32) and forms a cleaning cavity with the third auger (32). The first end of the cleaning cavity is closed, and the second end of the cleaning cavity forms a third discharge port. The first free end and the second free end of the third support plate (31) together form a third discharge port with the opening facing upward.

9. The cleaning device assembly according to claim 8, characterized in that, The first discharge port, the suction port, and the third discharge port are all funnel-shaped.

10. The cleaning device assembly according to claim 9, characterized in that, The inlet has an angle that is tilted toward the forward direction of the cleaning device assembly, and multiple cleaning components are arranged side by side.

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