Novel auger, straw cleaning device and straw impurity removing device

Abstract

The utility model discloses a novel auger, a straw cleaning device and a straw impurity removing device, the novel auger comprises a shaft rod, the shaft rod is provided with blades extending spirally, a plurality of fan blades are arranged on the shaft rod in the circumferential direction, and the fan blades extend in the axial direction of the shaft rod. A straw cleaning device comprises volutes, the volutes are fixedly arranged on two side plates at two ends of a shaft rod, and the straw cleaning device is reasonable in structure, flexible to use and beneficial to rapid discharge of straw and clean collection of the straw.

Description

Technical Field

[0001] This utility model relates to the field of agricultural production technology, specifically a new type of auger, straw cleaning device, and straw cleaning device. 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. During straw collection, the crushed straw is discharged laterally under the action of an auger, achieving the collection effect. In existing technologies, the auger design is simple, but when the amount of straw is large or the crushing is insufficient, blockage is prone to occur. Some existing technologies solve the blockage problem by adding a blower, such as the scheme shown in application number CN202320857883.2 entitled "A Blower and Straw Returning Conveying Device". However, this method is not only costly but also bulky, making it unsuitable for operation in complex environments.

[0004] In addition, generally speaking, collecting the straw cleanly will reduce the impact of straw on subsequent planting and reduce the burden on the film-collecting machine when removing the film. However, in production practice, the collected straw after crushing is often incomplete, and some straw remains in the field, affecting subsequent operations and increasing the burden on the film-collecting machine. Utility Model Content

[0005] This utility model discloses a novel auger, straw cleaning device, and straw cleaning device, which solves the technical problems of existing straw discharge augers being simple in structure, prone to clogging, and leaving straw residue. It features a reasonable structure, flexible use, and facilitates rapid straw discharge and clean straw collection. The technical solution adopted is as follows:

[0006] A novel auger includes a shaft with spirally extending blades and fan blades, the fan blades being designed to generate guiding airflow around the outer periphery of the shaft when the shaft rotates.

[0007] Based on the above technical solution, the fan blades are multiple and arranged circumferentially, and each fan blade includes several fan plates arranged along its extension direction to avoid obstructing the blades. Preferably, the fan blades extend outward in the radial direction and extend axially along the shaft direction.

[0008] Based on the above technical solution, the width of the fan blade is smaller than the width of the blade.

[0009] Based on the above technical solution, reinforcing blades are also fixedly and overlappingly on the outer edge of the blade.

[0010] Based on the above technical solution, the spiral channel formed by the blades is provided with a plurality of fan blades, the fan blades include a wind plate, the wind plate is mounted on the shaft by a wind plate seat, and the wind plate is designed to enhance the guiding airflow generated on the outer periphery of the shaft when the shaft drives the wind plate to rotate.

[0011] Based on the above technical solution, the air plate is hinged or fixed on the air plate seat.

[0012] Based on the above technical solution, the air deflector includes two opposing vertical plates, with a connecting plate vertically fixed to the upper part of the vertical plates, and the two connecting plates together form the air deflector.

[0013] Based on the above technical solution, the shaft includes an intermediate shaft tube, with connecting shafts fixed at both ends of the intermediate shaft tube, and the blades and several fan blades fixed on the intermediate shaft tube.

[0014] A straw cleaning device includes a volute, which is fixed on two side plates at both ends of a shaft. The volute is sleeved around a novel auger as described above and forms a cleaning chamber with the novel auger. The first axial end of the cleaning chamber is closed, and the second axial end of the cleaning chamber forms a discharge port. The first and second free ends of the volute together form a downward-facing suction port. When the novel auger rotates and creates a negative pressure environment in the cleaning chamber, the straw can enter the cleaning chamber under the negative pressure and be discharged laterally.

[0015] Based on the above technical solution, the suction port is funnel-shaped to cover a larger area of ​​the ground and improve the straw sweeping effect.

[0016] Based on the above technical solution, the suction port has an angle tilted toward the displacement direction of the cleaning device. Preferably, the tilt angle is 40~60° to further increase the ground coverage area of ​​the suction port.

[0017] Based on the above technical solution, the second free end is set close to the ground, and the end of the second free end includes a detachably connected rubber scraper.

[0018] Based on the above technical solution, it also includes a second auger and a pallet. The pallet is sleeved outside the second auger and surrounds the second auger to form a debris discharge cavity. The two free ends of the pallet together form an upward-facing discharge port.

[0019] Based on the above technical solution, the discharge port is funnel-shaped and has an angle of inclination towards the rear of the cleaning device displacement direction.

[0020] A straw cleaning device includes a volute and a third auger. The volute is fixedly installed and forms a cleaning chamber with the third auger. The first and second free ends of the volute together form a downward-facing suction port. The suction port is funnel-shaped. When the third auger rotates under the action of an external drive unit, the straw can enter the cleaning chamber upward.

[0021] Beneficial effects

[0022] This utility model has an ingenious structure. The new auger also includes several axially extending fan blades. During the high-speed rotation of the auger, the fan blades can form a large guiding airflow and create a negative pressure environment in the circumferential space of the auger, which promotes the rapid advancement of straw and avoids blockage. At the same time, the structure is simplified, avoiding the need for auxiliary equipment such as fans, which is conducive to miniaturization. Furthermore, it can reduce manufacturing costs and has good economic benefits.

[0023] This utility model's straw cleaning device can, on the one hand, collect and gather scattered straw on the ground. The suction inlet is funnel-shaped and inclined, which can directionally gather the scattered straw into the volute, and then discharge it outward under the action of the auger. The straw collection is cleaner and facilitates subsequent operations. On the other hand, a tray and a second auger are provided above the volute. The tray forms an upward-facing discharge port, and the straw mixed in with the picked-up mulch film can fall into the tray and be discharged outward by the second auger. This can be used in conjunction with a residual film machine to avoid straw mixed in with the residual film after baling, thus improving the user experience. Attached Figure Description

[0024] 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.

[0025] Figure 1 : A three-dimensional structural diagram of the novel auger in Example 1;

[0026] Figure 2 : A schematic cross-sectional view of the main view of the novel auger in Example 1;

[0027] Figure 3 : Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0028] Figure 4 : A three-dimensional structural diagram of the straw cleaning device in Example 1;

[0029] Figure 5: A three-dimensional structural diagram of the straw cleaning device in Example 1;

[0030] Figure 6 Example 1: A schematic diagram of the straw cleaning device assembled on the straw returning and film picking integrated machine;

[0031] Figure 7 : A three-dimensional structural diagram of the novel auger in Example 2; Detailed Implementation

[0032] 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.

[0033] 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.

[0034] In this document, unless otherwise stated, the term "multiple" means two or more.

[0035] 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.

[0036] 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.

[0037] Example 1

[0038] like Figures 1-3 The novel auger shown includes a shaft 1, which includes an intermediate shaft tube 11. Connecting shafts 12 are fixed at both ends of the intermediate shaft tube 11. In this application, the shaft 11 is hollow and tubular, lightweight, and has sufficient structural strength. Bearings are fitted at the two connecting shafts 12. An external drive unit is fixed on a side plate and can transmit rotational motion to one of the connecting shafts 12.

[0039] A spirally extending blade 2 is fixed on the intermediate shaft tube 11, so that the intermediate shaft tube 11 and the blade 2 together form an auger structure.

[0040] Furthermore, the intermediate shaft tube 11 is provided with one or more fan blades 3. In this embodiment, four fan blades 3 are evenly arranged circumferentially on the intermediate shaft tube 11, and the four fan blades 3 extend axially along the shaft 1. In this embodiment, as shown... Figure 2 As shown, each fan blade 3 extends radially outward. Thus, when the shaft 1 rotates at high speed, the fan blades 3 and 2 create a negative pressure environment in the circumferential space of the shaft 1, generating a directional airflow that guides the straw outwards quickly. In this embodiment, for ease of processing, each fan blade 3 includes several fan plates 31 arranged along its extension direction to avoid interference with the 2. Furthermore, to avoid interference with the 2 and to reduce the dimensional accuracy of the fan plates 31, the fan plates 31 are chamfered at their two corners near the intermediate shaft tube 11. In other embodiments of this invention, the intermediate shaft tube 11 is provided with one or more fan blades 3, which extend approximately along the axial direction of the intermediate shaft tube 11; that is, the tail end of the fan blade 3 has a deflection angle relative to the tail end of the intermediate shaft tube 11.

[0041] In this application, the width of the fan blade 3 is smaller than the width of the blade 2, which is 30-60% of the width of the blade 2. This ensures a larger guiding airflow and provides sufficient space around the shaft 1 to guarantee a higher straw discharge rate.

[0042] like Figure 3As shown, a reinforcing blade 4 is also fixedly and overlappingly on the outer edge of the blade 2. Correspondingly, to avoid the blade 2, the reinforcing blade 4 includes multiple length segments, each of which is fitted with the blade 2 at a corresponding position. This improves the structural strength of the blade 2 and extends its service life. In other embodiments of this utility model, the reinforcing blade 4 is located on the outer side of the fan blade 3. When the fan blade 3 becomes loose, it can limit the radial runout of the fan blade 3, ensuring good safety in use.

[0043] like Figure 4 and 5 The straw cleaning device shown includes a volute 5, which is fixedly installed. In this embodiment, both ends of the volute 5 are fixed to the two side plates 9 at both ends of the shaft 1. The volute 5 is sleeved on the outside of the novel auger as described above, so that the volute 5 and the novel auger enclose a cleaning cavity. The cleaning cavity is closed at the first axial end and forms a discharge port at the second circumferential end.

[0044] The volute 5 is roughly U-shaped, and the first free end 51 and the second free end 52 of the volute 5 together form a downward-facing suction port, such as... Figure 4 As shown, the suction port is funnel-shaped, which can cover a larger ground area. The suction port has an angle that is tilted towards the displacement direction of the cleaning device. In this embodiment, the tilt angle of the suction port is 45°. The tilted setting of the suction port further improves the coverage area of ​​the suction port and makes the second free end 52 of the volute 5 close to the ground. The end of the second free end 52 includes a detachably connected rubber scraper 6. During the movement of the straw cleaning device, the rubber scraper 6 rubs and flattens the ground. The detachable design makes it easier to replace the rubber scraper after it wears out.

[0045] As the straw cleaning device sweeps across the field, the scattered straw automatically enters the cleaning chamber under negative pressure and is discharged laterally. It boasts high automation efficiency, can replace manual picking, and its ingenious design allows for different directional airflows by configuring different shaft speeds, facilitating the collection of broken straw and subsequent agricultural operations. It also reduces the burden on the film-collecting machine when removing plastic film later.

[0046] like Figure 4 As shown, it also includes a second auger 7 and a support plate 8. The support plate 8 is located above the volute 5, and its two ends are fixed to the side plates 9 respectively. The second auger 7 is arranged parallel to the axis of the new auger. The support plate 8 is sleeved on the second auger 7 and forms a debris discharge cavity with the second auger 7. The two free ends of the support plate 8 together form an upward-facing discharge port. Figure 4 As shown, the discharge port is funnel-shaped and tilted backward in the direction of displacement of the cleaning device. As shown in the figure, one end of the impurity removal chamber is closed, and the other end forms the discharge port.

[0047] like Figure 5The straw cleaning device shown includes a volute 5 and a third auger 10. The third auger 10 includes a third shaft with spirally extending third blades. The volute 5 is fixedly installed. In this embodiment, the two ends of the volute 5 are fixed to the two side plates 9 at the two ends of the third shaft. The volute 5 is sleeved on the outside of the third auger, so that the volute 5 and the new auger enclose a cleaning chamber. One end of the cleaning chamber is closed, and the other end forms a discharge port.

[0048] The volute 5 is roughly U-shaped, and the first free end 51 and the second free end 52 of the volute 5 together form a downward-facing suction port, such as... Figure 5 As shown, the suction port is funnel-shaped, which can cover a larger ground area. The suction port has an angle that is tilted towards the displacement direction of the cleaning device. In this embodiment, the tilt angle of the suction port is 45°. The tilted setting of the suction port further improves the coverage area of ​​the suction port and makes the second free end 52 of the volute 5 close to the ground. The end of the second free end 52 includes a detachably connected rubber scraper 6. During the movement of the straw cleaning device, the rubber scraper 6 rubs and flattens the ground. The detachable design makes it easier to replace the rubber scraper after it wears out.

[0049] like Figure 6 The integrated machine for returning straw to the field and picking up film shown includes two side plates 9. A straw returning unit and a film picking unit are provided between the two side plates. The straw returning unit includes a straw crushing component and a straw conveying component. The straw crushed by the straw crushing component is discharged laterally by the straw conveying component. In this application, the straw cleaning device or straw cleaning device is located behind the straw returning unit and in front of the film picking unit.

[0050] Taking straw cleaning devices as an example, such as Figure 6 As shown, a connecting shaft of the new type of auger extends beyond the side plate 9, that is, the first end opening of the cleaning chamber allows the straw material to be discharged laterally. The film-collecting unit includes a film-collecting assembly and a baling assembly. The film-collecting assembly includes several film-collecting hooks arranged circumferentially. The film-collecting hooks are used to pick up residual film on the ground. When the film-collecting hooks transport the mixture of residual film and straw, the mixed straw can fall into the discharge chamber under its own weight, thereby achieving the separation of straw and mulch film.

[0051] Example 2

[0052] The difference between Example 2 and Example 1 is that, as Figure 7 As shown, a plurality of fan blades 3 are provided in the spiral channel 300 formed by the blades 2. The plurality of fan blades 3 are evenly arranged in the spiral channel 300. The fan blade 3 includes a wind plate 33. The wind plate 33 is mounted on the shaft 1 through a wind plate seat 34. In this embodiment, the wind plate 33 is hinged to the wind plate seat 34. When the shaft 1 rotates, the wind plate 33 swings under the action of inertial force, which can enhance the guiding airflow generated on the outer periphery of the shaft, so that the straw enters the cleaning chamber through the suction port.

[0053] The wind deflector 33 includes two opposing vertical plates 331. A pin passes through the two vertical plates 331 and the wind deflector seat 34, hinged to the two vertical plates 331 and the wind deflector seat 34. In this embodiment, a washer is also fitted on the pin between the vertical plates 331 and the wind deflector seat 34, which presses the two vertical plates 331 together, causing them to move synchronously. A connecting plate 332 is vertically fixed to the upper part of the vertical plates 331, and the two connecting plates 332 together form the wind deflector 33. Thus, when the shaft 1 rotates, the wind deflector 33 can enhance the guiding airflow generated on the outer periphery of the shaft 1. At the same time, the swinging of the wind deflector 33 under the action of inertial force can also push the straw into the cleaning chamber, which is conducive to the rapid discharge of straw and avoids blockage.

[0054] In other embodiments of this utility model, the air plate 33 may also be fixedly connected to the air plate seat 34.

[0055] 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 novel auger, characterized in that, Includes a shaft (1), on which are provided spirally extending blades (2), and on which are provided fan blades (3), which are designed to generate guiding airflow on the outer periphery of the shaft (1) when the shaft (1) rotates.

2. The novel auger according to claim 1, characterized in that, The fan blades (3) are multiple and arranged circumferentially. The fan blades (3) include a number of fan plates (31) arranged along their extension direction. The fan plates (31) are fixed on the shaft (1) and avoid the blades (2).

3. The novel auger according to claim 1 or 2, characterized in that, The fan blade (3) extends axially along the shaft (1), and the width of the fan blade (3) is smaller than the width of the blade (2).

4. The novel auger according to claim 3, characterized in that, The outer edge of the blade (2) is also reinforced with a reinforcing blade (4) overlapping.

5. The novel auger according to claim 1, characterized in that, The spiral channel formed by the blade (2) is provided with a plurality of fan blades (3), the fan blades (3) include a wind plate (33), the wind plate (33) is provided on the shaft (1) through a wind plate seat (34), and the wind plate (33) is designed to enhance the guiding airflow generated on the outer periphery of the shaft (1) when the shaft (1) drives the wind plate (33) to rotate.

6. The novel auger according to claim 5, characterized in that, The air deflector (33) is hinged or fixed on the air deflector seat (34).

7. The novel auger according to claim 6, characterized in that, The air deflector (33) includes two vertical plates (331) arranged opposite to each other. A connecting plate (332) is vertically fixed to the upper part of the vertical plate (331), and the two connecting plates (332) together form the air deflector (33).

8. The novel auger according to claim 1, characterized in that, The shaft (1) includes an intermediate shaft tube (11), with connecting shafts (12) fixed at both ends of the intermediate shaft tube (11), and the blades (2) and several fan blades (3) fixed on the intermediate shaft tube (11).

9. A straw cleaning device, characterized in that, Includes a volute (5), which is fixed on two side plates (9) at both ends of the shaft (1), and the volute (5) is sleeved on the outside of the novel auger as described in any one of claims 1, 2, 4, and 5 and surrounds the novel auger to form a cleaning cavity. The first end of the cleaning cavity is closed in the axial direction, and the second end of the cleaning cavity forms a discharge port. The first free end (51) and the second free end (52) of the volute (5) together form a downward-facing suction port.

10. The straw cleaning device according to claim 9, characterized in that, The inlet is funnel-shaped.

11. The straw cleaning device according to claim 9, characterized in that, The suction port has an angle that is tilted toward the direction of displacement of the cleaning device.

12. The straw cleaning device according to claim 11, characterized in that, The second free end (52) is positioned close to the ground, and the end of the second free end (52) includes a detachably connected rubber scraper (6).

13. The straw cleaning device according to any one of claims 9 to 12, characterized in that, It also includes a second auger (7) and a tray (8). The tray (8) is sleeved outside the second auger (7) and surrounds the second auger (7) to form a discharge cavity. The two free ends of the tray (8) together form an upward-facing discharge port.

14. The straw cleaning device according to claim 13, characterized in that, The discharge port is funnel-shaped and has an angle that tilts backward toward the direction of displacement of the cleaning device.

15. A straw cleaning device, characterized in that, Includes a volute (5) and a third auger (10). The volute (5) is fixedly installed and forms a cleaning chamber with the third auger (10). The first free end (51) and the second free end (52) of the volute (5) together form a downward-facing suction port. The suction port is funnel-shaped. When the third auger (10) rotates under the action of the external drive unit, the straw can enter the cleaning chamber upward.

Images