A delivery device with self-threshing mechanism and a grain combine

Abstract

This invention relates to the field of grain threshing technology, and particularly to a conveying device with a self-threshing mechanism. The conveying device comprises a first conveying mechanism, a second conveying mechanism, and a third conveying mechanism. The self-threshing mechanism is used to thresh the material to be processed. The threshed material falls into the third conveying mechanism through the self-threshing mechanism, which then conveys the processed material to a screen surface. The first, second, and third conveying mechanisms are interconnected. When conveying impurities on a combine harvester, the self-threshing mechanism can thresh unthreshed ears of grain by kneading, beating, and combing. After threshing, the grain is then conveyed to the screen surface, reducing the workload on the screen surface and improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of grain threshing technology, and particularly to a conveying device with a self-threshing mechanism and a grain combine harvester. Background Technology

[0002] Existing waste conveying devices mostly use a horizontal bottom auger to transport waste into the casing, then a scraper to the top of the casing, and finally a horizontal top auger to output it into the drum or screen surface. In this technical solution, the waste conveyor only serves a material transport function. Transporting waste material back to the drum increases the drum's threshing load, leading to incomplete threshing and the risk of clogging the conveyor with wet crop material. When the conveyor returns waste material to the screen surface, some unthreshed ears cannot be threshed again, requiring repeated conveying. This increases the threshing and cleaning load on the harvester to varying degrees, resulting in reduced threshing and cleaning efficiency, leading to low operating efficiency and increased losses. Summary of the Invention

[0003] The main objective of this invention is to provide a conveying device with a self-threshing mechanism and a grain combine harvester. This invention aims to solve the problems of existing waste material lifting devices, which increase the threshing load on the drum when using a conveyor to transport waste material back to the drum, resulting in incomplete threshing and the risk of clogging the conveyor with wet crop material. When the conveyor transports waste material back to the screen, there may be unthreshed ears that cannot be threshed again, requiring repeated lifting and conveying. This increases the threshing and cleaning load on the harvester to varying degrees, leading to reduced threshing and cleaning efficiency, resulting in low operating efficiency and increased losses.

[0004] To achieve the above objectives, in one aspect, the present invention proposes a conveying device with a self-threshing mechanism. The conveying device consists of a first conveying mechanism, a second conveying mechanism, and a third conveying mechanism. The first conveying mechanism is used to horizontally convey the material to be processed. The second conveying mechanism is located at one end of the first conveying mechanism and is used to lift and convey the material to be processed. The third conveying mechanism is located above the end of the second conveying mechanism away from the first conveying mechanism. A self-threshing mechanism is provided between the second conveying mechanism and the third conveying mechanism. The self-threshing mechanism is used to thresh the material to be processed. The threshed material falls into the third conveying mechanism through the self-threshing mechanism. The third conveying mechanism is used to convey the processed material to the screen surface. The first conveying mechanism, the second conveying mechanism, the third conveying mechanism, and the self-threshing mechanism are interconnected.

[0005] Optionally, the second conveying mechanism has a self-threshing shell at one end away from the first conveying mechanism. The self-threshing shell has a threshing unit for threshing materials. The threshing unit consists of a rotating threshing element and a fixed threshing element. The threshing of the materials to be processed is completed through the cooperation between the rotating threshing element and the fixed threshing element.

[0006] Optionally, the rotary threshing element includes a rotary seat welding and a throwing device, wherein the throwing device is fixedly or movably connected to the rotary seat.

[0007] Optionally, the throwing device is a wear-resistant plate, and there are at least two sets of wear-resistant plates. The wear-resistant plates are welded and fixedly connected to the rotating seat. The rotating seat is welded and fixedly installed on both ends of the side wall of the self-threshing shell along its axial direction. The fixed threshing element is fixedly disposed on the inner side wall of the self-threshing shell. The fixed threshing element cooperates with the wear-resistant plate to thresh the material entering the self-threshing shell.

[0008] Optionally, the wear-resistant plate is provided with an adjustment elongated hole, which adjusts the gap between the fixed threshing element and the wear-resistant plate.

[0009] Optionally, the fixed threshing element is a textured bar block, which is installed in any direction of the rotation diameter of the rotating threshing element.

[0010] Optionally, the textured bar block includes a left-handed textured bar block and a right-handed textured bar block, which are respectively spaced apart on the inner sidewall of the self-threshing shell.

[0011] Optionally, the throwing device is a rotating scoop plate, which is welded and movably connected to a rotating seat. The outer end of the rotating scoop plate has a toothed structure, and the rotating seat is welded and fixedly installed on both ends of the side wall of the self-threshing shell along its axial direction. The fixed threshing element is fixedly disposed on the inner side wall of the self-threshing shell. The fixed threshing element cooperates with the rotating scoop plate to thresh the material entering the self-threshing shell.

[0012] Optionally, the fixed threshing element is an arc-shaped plate structure with protrusions inside. The protrusions are spaced apart along the movement direction of the rotating threshing element and gradually increase in height, and are in cooperation with the teeth of the rotating scouring pad with a gap.

[0013] On the other hand, based on the first aspect, the present invention provides a grain combine harvester, which is applied to any of the conveying devices with a self-threshing mechanism described in the first aspect.

[0014] The beneficial effects of this invention are:

[0015] 1. The present invention provides a conveying device with a self-threshing mechanism. When conveying waste on a combine harvester, the self-threshing mechanism can thresh the unthreshed ears by rubbing, beating, and combing. After threshing, the ears are conveyed to the screen surface, reducing the workload of the screen surface and improving work efficiency.

[0016] 2. By setting up a self-threshing mechanism for crop harvesting, the load on the drum and cleaning system can be greatly reduced, effectively improving threshing efficiency, enhancing operational efficiency, and ensuring user profits.

[0017] 3. The device has a novel structure, adopting a self-threshing method that combines a rotating structure and a fixed structure to achieve material threshing. The overall structure is simple, has good processability, high threshing efficiency, high operating efficiency, and high reliability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a conveying device with a self-threshing mechanism according to the present invention.

[0020] Figure 2 This is a schematic diagram of the overall internal structure of a conveying device with a self-threshing mechanism as described in Embodiment 1 of the present invention.

[0021] Figure 3 This is a schematic diagram of the overall connection between the self-threshing mechanism and the third conveying mechanism described in Embodiment 1 of the present invention.

[0022] Figure 4 This is a schematic diagram of the overall structure of the rotary seat welding in Embodiments 1 and 2 of the present invention.

[0023] Figure 5 The diagram shows the overall structure and a partially disassembled structure of the self-threshing mechanism described in Embodiment 1 of the present invention.

[0024] Figure 6 This is a schematic diagram of the overall structure of the textured bar block described in Embodiment 1 of the present invention.

[0025] Figure 7 The diagram shows the overall structure and a partially disassembled structure of the self-threshing mechanism described in Embodiment 2 of the present invention.

[0026] The markings mean: 1. First conveying mechanism; 2. Second conveying mechanism; 3. Third conveying mechanism; 4. Self-threshing mechanism; 41. Self-threshing shell; 5. Wear-resistant plate; 6. Adjustment hole; 7. Textured bar block; 71. Left-hand textured bar block; 72. Right-hand textured bar block; 8. Rotating rubbing plate; 9. Arc-shaped plate structure; 10. Protrusion. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0031] Example 1

[0032] like Figure 1-3As shown, the present invention provides a conveying device with a self-threshing mechanism. The conveying device consists of a first conveying mechanism 1, a second conveying mechanism 2, and a third conveying mechanism 3. The first conveying mechanism 1 is used to horizontally convey the material to be processed. The second conveying mechanism 2 is located at one end of the first conveying mechanism 1 and is used to lift and convey the material to be processed. The third conveying mechanism 3 is located above the end of the second conveying mechanism 2 away from the first conveying mechanism 1. A self-threshing mechanism 4 is provided between the second conveying mechanism 2 and the third conveying mechanism 3. The self-threshing mechanism 4 is used to thresh the material to be processed. The threshed material falls into the third conveying mechanism 3 through the self-threshing mechanism 4. The third conveying mechanism 3 is used to convey the processed material to the screen surface. The first conveying mechanism 1, the second conveying mechanism 2, the third conveying mechanism 3, and the self-threshing mechanism 4 are interconnected.

[0033] When material processing is required, the material falls from the cleaning device and first enters the first conveying mechanism 1. The first conveying mechanism 1 horizontally conveys the material, which is then conveyed and lifted by the second conveying mechanism 2, and transported to the self-threshing mechanism 4. The self-threshing mechanism 4 performs threshing operations such as kneading, beating, and combing on the material. After threshing, the material enters the third conveying mechanism 3, which conveys it to the screen surface. The processed material greatly reduces the workload on the screen surface when it is conveyed, thereby greatly improving work efficiency. This avoids the situation where the conveyor transports material back to the screen surface, increasing the threshing load on the screen surface, resulting in incomplete threshing, and the risk of the conveyor clogging the conveyor with wet crop material. It also avoids the situation where the conveyor transports material back to the screen surface and there are still unthreshed ears that cannot be threshed again, leading to repeated lifting and conveying and low work efficiency.

[0034] It should be noted that the inventive point of this application does not lie in the improvement of the second conveying mechanism 2 and the third conveying mechanism 3. Since the second conveying mechanism 2 and the third conveying mechanism 3 are part of the structure on the combine harvester and are common structures in the field, this application does not provide a detailed description of the second conveying mechanism 2 and the third conveying mechanism 3. The second conveying mechanism 2 and the third conveying mechanism 3 in this application can use similar structures on the combine harvester, as long as they can achieve the corresponding effects.

[0035] Furthermore, the material requiring processing in this application can be surplus material, such as ears of wheat, wheat, or other materials that require threshing. This application focuses on processing incompletely threshed ears of wheat, performing appropriate threshing treatment. By threshing the ears of wheat, the threshing and cleaning load on the harvester is reduced to varying degrees, thereby improving the threshing and cleaning effects, increasing operational efficiency, and reducing losses.

[0036] In this embodiment, the second conveying mechanism 2 is provided with a self-threshing shell 41 at one end away from the first conveying mechanism 1. The self-threshing shell 41 is provided with a threshing unit for threshing materials. The threshing unit consists of a rotating threshing element and a fixed threshing element. The threshing process of the material to be processed is completed through the cooperation between the rotating threshing element and the fixed threshing element.

[0037] The self-threshing structure, employing a combination of rotary and fixed threshing elements, results in a simple overall structure, good manufacturability, high threshing efficiency, high operational efficiency, and high reliability. By threshing the ear heads, the threshing and cleaning load on the harvester is reduced to varying degrees, thereby improving the threshing and cleaning effects, ultimately increasing operational efficiency and reducing losses.

[0038] In this embodiment, the rotary threshing element includes a rotary seat welded together and a throwing device, wherein the throwing device is fixedly or movably connected to the rotary seat welded together. By setting the rotary seat welded together for mounting the throwing device thereon, the cooperation between the rotary seat welded together, the throwing device, and the fixed threshing element is used to thresh the untreated clean ears of grain, thereby reducing the threshing and cleaning load of the harvester to varying degrees.

[0039] It should be noted that the rotary seat welding includes two structures. One type of rotary seat welding structure includes a bushing, a fixed bearing plate, and fixed ejector plates. The fixed bearing plate has a square structure with a through hole in its center that fits the bushing. There are two fixed bearing plates. The bushing is installed into the through holes on the two fixed bearing plates to fix them in place. The number of fixed ejector plates is determined according to the shape of the fixed bearing plate, such as... Figure 4 As shown, fixed throwing plates are installed at each adjacent included angle of the fixed bearing plate. Mounting holes are provided on the fixed throwing plates for mounting the wear-resistant plate 5 onto the fixed throwing plates using bolts. When the rotating seat with this structure is welded, the throwing device and the rotating seat are installed in a fixed connection manner.

[0040] like Figure 4 As shown, another type of rotary seat welding structure includes a bushing and a fixed flange. The fixed flange has a triangular structure with a through hole at its center that matches the bushing. Two fixed flanges are included, and the bushing is installed into the through holes on the two flanges to secure them. The rotary seat welding structure is not specifically limited and can be designed and installed according to actual usage. Changes to the rotary seat welding structure can appropriately alter the shape of the fixed flange. When using this type of rotary seat welding structure, the throwing device and the rotary seat are installed in a movable connection manner.

[0041] In this example, refer to Figure 5The throwing device is a wear-resistant plate 5, and there are at least two sets of wear-resistant plates 5. The wear-resistant plates 5 are welded and fixedly connected to the rotating seat. The rotating seat is welded and fixedly installed on both ends of the side wall of the self-threshing shell 41 along its axial direction. The fixed threshing element is fixedly arranged on the inner side wall of the self-threshing shell 41. The fixed threshing element cooperates with the wear-resistant plate 5 to thresh the material entering the self-threshing shell 41.

[0042] In this embodiment, the wear-resistant plate 5 is provided with an adjusting elongated hole 6, which adjusts the gap between the fixed threshing element and the wear-resistant plate 5. By providing the adjusting elongated hole 6, the wear-resistant plate 5 can be adjusted accordingly, so that the gap between the wear-resistant plate 5 and the textured bar block 7 can match the size and shape of the material. This allows the wear-resistant plate 5 and the textured bar block 7 to produce better kneading, striking, and combing effects on the material, improving the threshing effect and thus increasing the working efficiency of the entire device.

[0043] In this process, the material conveyed by the second conveying mechanism 2 enters the self-threshing mechanism 4. As the second conveying mechanism 2 conveys the material, the rotating seat also rotates, causing the fixed throwing plate to rotate as well. The material moves accordingly in the direction of the conveying. The wear-resistant plate 5 is installed on the fixed throwing plate, rotating in tandem with it. The second conveying mechanism 2 lifts and conveys the material to be processed into the self-threshing housing 41. As the wear-resistant plate 5 rotates, the material inside the housing moves accordingly. When the wear-resistant plate 5 rotates to the vicinity of the textured bar block 7, the material moves between the plate and the block, resulting in a kneading, striking, and combing effect, thus achieving threshing. The threshed material then enters the third conveying mechanism 3, which conveys it to the screen surface. The processed material significantly reduces the workload on the screen surface, thereby greatly improving work efficiency. The bushing has positioning steps at both ends and a keyway in the inner hole, which is used to install a flat key.

[0044] In this embodiment, reference Figure 5 The fixed threshing element is a textured bar block 7, which is installed in any direction of the rotation diameter of the rotating threshing element. The installation position of the textured bar block 7 can be adjusted according to actual usage, as long as it is installed in any direction of the rotation diameter of the fixed throwing plate. This allows the material to move within the self-threshing housing 41 when the fixed throwing plate rotates, working in conjunction with the textured bar block 7 and the wear-resistant plate 5 to impact and thresh the material entering the self-threshing mechanism 4. This improves the adaptability of the device and facilitates flexible installation of the textured bar block 7.

[0045] In this embodiment, reference Figure 6 The textured bar block 7 includes a left-handed textured bar block 71 and a right-handed textured bar block 72, which are respectively and spaced apart on the inner sidewall of the self-threshing shell 41. By setting the textured bar block 7 with textures in different directions, the material threshing effect is improved.

[0046] Example 2

[0047] In this embodiment, reference Figure 7 The throwing device is a rotating scoop plate 8, which is welded and movably connected to a rotating seat. The outer end of the rotating scoop plate 8 has a toothed structure. The rotating seat is welded and fixedly installed on both ends of the side wall of the self-threshing shell 41 along its axial direction. The fixed threshing element is fixedly disposed on the inner side wall of the self-threshing shell 41. The fixed threshing element cooperates with the rotating scoop plate 8 to thresh the material entering the self-threshing shell 41.

[0048] In this system, a fixed disc is connected to a bushing via a flat key. The rotation of the bushing causes the fixed disc to rotate. Since the rotating scouring pad 8 is connected to the fixed disc via a fixed pin, it rotates accordingly. The second conveying mechanism 2 lifts and conveys the material to be processed into the self-threshing housing. As the rotating scouring pad 8 rotates, the material in the self-threshing housing 41 moves accordingly. When the rotating scouring pad 8 rotates near the fixed threshing element, the material moves between the fixed threshing element and the rotating scouring pad 8, resulting in kneading, striking, and combing effects on the material, thus achieving threshing. The threshed material then enters the third conveying mechanism 3, which conveys it to the screen surface. The processed material significantly reduces the workload on the screen surface, thereby greatly improving work efficiency.

[0049] It should be noted that the fixed disc has through-holes for mounting, through which the fixing pin is installed. The rotating scouring pad 8 has fixing holes for the fixing pin, through which the rotating scouring pad 8 passes. A through-hole is made in the fixing pin, and a fixing washer is placed at the mounting hole to insert the cotter pin, thus completing the installation of the rotating scouring pad 8. The fixing washer reinforces the installation of the rotating scouring pad 8. Furthermore, the fixed disc is triangular in shape, and the rotating scouring pad 8 is installed according to the shape of the fixed disc. The triangular fixed disc in this embodiment is only one implementation method; in actual use, the structure of the fixed disc can be changed according to actual needs, thereby changing the number of rotating scouring pads 8 installed accordingly. The material is then subjected to impact threshing. The number of rotating scoop plates 8 can be adjusted according to the specific application. The number of rotating scoop plates 8 can be increased or decreased as appropriate, but the minimum number of rotating scoop plates 8 is one. The recessed part on the rotating scoop plate 8 can comb the material entering the self-threshing shell and transport it to the fixed threshing element. Then, the mutual friction between the recessed part, the threshing element, and the material is used to beat and thresh the material, thereby improving the threshing effect.

[0050] In this embodiment, the fixed threshing element is an arc-shaped plate structure 9 with protrusions 10 inside. These protrusions 10 are spaced apart along the direction of movement of the rotating threshing element, with their height gradually increasing. They engage with the teeth of the rotating rubbing plate 8, with a gap between them. In this embodiment, the rotating element and the fixed element have a toothed relationship. The protrusions 10 on the arc-shaped plate structure 9 are toothed, and the teeth conform to the material direction. The protrusions 10 engage with the recessed portion of the rotating rubbing plate 8, and the engagement gap can be adjusted by changing the position of the rotating rubbing plate 8, thereby achieving threshing of both dry and wet crops.

[0051] Example 3

[0052] This embodiment provides a grain combine harvester, applied to a conveying device with a self-threshing mechanism in Embodiment 1 and Embodiment 2. The conveying and processing of grain is accomplished by installing the conveying device with the self-threshing mechanism onto the grain combine harvester.

[0053] Working principle: Unthreshed crop ears fall from the cleaning device and are conveyed by the first conveying mechanism 1 to the second conveying mechanism 2. The second conveying mechanism 2 lifts and throws the material to the self-threshing mechanism 4. The self-threshing mechanism 4 achieves re-threshing of the unthreshed ears through the cooperation of rotating rubbing plates 8, patting, kneading, and brushing with the arc-shaped plate structure 9 and protrusions 10. During the rotation process, the rotating rubbing plates 8 throw the threshed material to the third conveying mechanism 3, which then transports the material back to the screen surface, reducing the workload of the screen surface and improving work efficiency.

[0054] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A conveying device with self-threshing mechanism, the conveying device is composed of a first conveying mechanism (1), a second conveying mechanism (2) and a third conveying mechanism (3), the first conveying mechanism (1) is used for horizontal conveying of the material to be processed, the second conveying mechanism (2) is arranged at one end of the first conveying mechanism (1), the second conveying mechanism (2) is used for lifting conveying of the material to be processed, the third conveying mechanism (3) is arranged above the end of the second conveying mechanism (2) away from the first conveying mechanism (1), characterized in that: a self-threshing mechanism (4) is arranged between the second conveying mechanism (2) and the third conveying mechanism (3), the self-threshing mechanism (4) is used for threshing the material to be processed, the threshed material falls into the third conveying mechanism (3) through the self-threshing mechanism (4), the third conveying mechanism (3) is used for conveying the processed material to a sieve surface, the first conveying mechanism (1), the second conveying mechanism (2), the third conveying mechanism (3) and the self-threshing mechanism (4) are communicated with each other; a self-threshing shell (41) is arranged at the end of the second conveying mechanism (2) away from the first conveying mechanism (1), a threshing unit for threshing the material is arranged in the self-threshing shell (41), the threshing unit is composed of a rotating threshing element and a fixed threshing element, the rotating threshing element includes a rotating seat welding and a throwing device; the throwing device is a wear plate (5), the wear plate (5) is at least two groups, the wear plate (5) is fixedly connected with the rotating seat welding, the rotating seat welding is fixedly installed on the side walls of the self-threshing shell (41) in the axial direction, the fixed threshing element is arranged on the inner side wall of the self-threshing shell (41) in a fixed manner, the fixed threshing element cooperates with the wear plate (5) to thresh the material entering the self-threshing shell (41); adjusting long holes (6) are arranged on the wear plate (5), the adjusting long holes (6) adjust the gap between the fixed threshing element and the wear plate (5); the fixed threshing element is a textured rod block (7), the textured rod block (7) is installed in any direction of the rotating diameter of the rotating threshing element; the textured rod block (7) includes a left-handed textured rod block (71) and a right-handed textured rod block (72), the left-handed textured rod block (71) and the right-handed textured rod block (72) are respectively arranged on the inner side wall of the self-threshing shell (41) in a spaced manner.

2. A grain combine harvester comprising the conveying device with self-threshing mechanism according to claim 1. ​ ​ ​

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