Harvester and material conveying apparatus therefor

Abstract

The utility model relates to material conveying technical field, the utility model provides a harvester and material conveying equipment thereof, including receiving material box, receiving material box has the import for material entering and material export, receiving material box is equipped with baffle, is used for separating receiving material box into material space and airflow space, baffle separates export into material port located material space and airflow port located airflow space, in this scheme, material falls on baffle after entering material space from import, the airflow of external fan enters airflow space through air hole, high -speed airflow flows in the feeding pipe, will reduce the pressure in feeding pipe, makes the air pressure of material port lower than the pressure at the import. Material moves along baffle to material port under the action of negative pressure, is driven into feeding pipe subsequently by the airflow of airflow port spouted. The temporary storage and transfer function of material space can buffer the fluctuation of front end material input, maintain the stability of feeding, ensure that the conveying process is continuous and uninterrupted, reduce the risk of pipeline blockage.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of material conveying technology, specifically to a harvester and its material conveying equipment. Background Technology

[0002] In the practical application of crop harvesters, traditional pneumatic conveying systems typically use material conveying devices, such as screw feeders and vibrating feeders, to stably supply materials into the pipeline, and then introduce airflow into the pipeline to convey the materials. However, this relies more on the stability of the feeding device. If the feeding amount and the wind speed do not match, it can easily lead to blockage or interruption of the conveying process. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a harvester and its material conveying equipment, which solves the technical problem that the traditional pneumatic conveying system in the prior art usually uses a material conveying device, which relies on the feeding stability of the feeding device. If the feeding amount and wind speed are mismatched, it will easily lead to blockage or conveying interruption.

[0004] According to one aspect, at least one embodiment of the present invention provides a material conveying device for a harvester, characterized in that it comprises:

[0005] The receiving box has an inlet for material entry and an outlet for material exit. The receiving box is equipped with a partition to divide the receiving box into a material space and an airflow space. One end of the partition extends to the outlet and divides the outlet into a material port located in the material space and an airflow port located in the airflow space. The inlet is connected to the material port.

[0006] The side walls of the airflow space are provided with air vents for supplying airflow into the airflow space;

[0007] The feed pipe is connected to the outlet and is used to transport materials by airflow.

[0008] In some embodiments, the material space is located above the partition, which is arranged at an angle to guide the material in the material space to the material outlet.

[0009] In some embodiments, the bottom of the airflow space is arranged at an angle so that the airflow from the vent flows at an angle from top to bottom toward the airflow vent.

[0010] In some embodiments, the cross-sectional area of ​​the material space gradually decreases from the inlet to the material outlet.

[0011] In some embodiments, the cross-sectional area of ​​the airflow space gradually decreases from the air inlet to the air outlet.

[0012] In some embodiments, the feeding pipe includes a first pipe and a second pipe that are interconnected, with one end of the first pipe connected to an outlet and the other end rotatably connected to one end of the second pipe;

[0013] The end of the second pipeline furthest from the first pipeline is configured to move between a position above the grain silo and a position furthest from the grain silo.

[0014] In some embodiments, it also includes:

[0015] The frame has a rotatable transfer cylinder for conveying materials to the receiving box. The transfer cylinder has multiple transfer slots distributed circumferentially for loading materials.

[0016] The transfer cylinder also has a loading position and a unloading position. When the transfer trough is in the loading position, it is used to receive materials. When the transfer trough is in the unloading position, it is used to feed materials into the receiving box. The transfer cylinder is configured to drive the transfer trough to move between the loading position and the unloading position after rotation.

[0017] In some embodiments, the frame is further provided with a stop, which is located inside the transfer cylinder and extends from the upper material position to the lower material position along the circumference of the transfer cylinder, for blocking the opening of the transfer trough.

[0018] In some embodiments, an air pump is also provided on the frame, and the outlet of the air pump is connected to the air vent for delivering airflow into the airflow space.

[0019] This application also provides a harvester, including a harvesting device, a conveying device, a grain bin, and a material conveying device of any one of the above; the harvesting device is used to harvest crops; the conveying device is used to convey the harvested material to the material conveying device; and the material conveying device is used to convey the material to the grain bin.

[0020] The beneficial effects of the embodiments of this utility model are as follows:

[0021] In this invention, the receiving box has an inlet and an outlet. The inlet receives and transports materials, while the outlet connects to a subsequent conveying pipeline to deliver the materials to a storage or processing area. A partition is fixed inside the receiving box, vertically dividing it into upper and lower sections: an upper airflow space and a lower material space. One end of the partition is located on the side wall of the receiving box away from the outlet, while the other end extends to the outlet, which is divided by the partition into a material outlet and an airflow outlet, distributed vertically. Air vents are located on the side wall of the airflow space and connected to an external fan via pipes, providing airflow to the airflow space.

[0022] After entering the material space from the inlet, the material falls onto the baffle. Airflow generated by the external fan enters the airflow space through the vents and flows along the airflow space and the feeding pipe. The high-speed airflow in the feeding pipe reduces the pressure inside, thus lowering the pressure at the material outlet compared to the inlet. Under this negative pressure, the material moves along the baffle towards the material outlet and is then carried by the airflow from the vents into the feeding pipe, completing the entire conveying process. The temporary storage and transfer function of the material space buffers fluctuations in the initial material input, maintains stable feeding, and ensures continuous and uninterrupted conveying. It also reduces the risk of pipe blockage.

[0023] This application also provides a harvester that includes the above-described material conveying equipment and has the aforementioned advantages. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0025] Figure 1 This is a first-view structural schematic diagram of a material conveying device according to the present invention;

[0026] Figure 2 This is a second-view structural schematic diagram of a material conveying device according to the present invention;

[0027] Figure 3 A schematic diagram of the receiving box and the feeding pipe;

[0028] Figure 4 This is a cross-sectional structural diagram of the receiving box and the feeding pipe.

[0029] In the diagram: 1. Receiving box; 101. Inlet; 102. Outlet; 103. Material space; 104. Airflow space; 105. Material inlet; 106. Airflow inlet; 107. Air outlet; 2. Partition; 3. Feeding pipe; 301. First pipeline; 302. Second pipeline; 4. Grain bin; 5. Frame; 6. Transfer cylinder; 601. Transfer trough; 602. Loading position; 603. Unloading position; 7. Stop; 8. Air pump. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0031] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0032] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 this utility model.

[0035] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] like Figures 1-4As shown, this invention discloses a material conveying device. A receiving box 1 has an inlet 101 and an outlet 102. The inlet 101 receives and conveys materials, while the outlet 102 connects to a subsequent conveying pipeline to deliver the materials to a storage or processing area. A partition 2 is fixed inside the receiving box 1, vertically dividing it into upper and lower sections: an upper material space 103 and a lower airflow space 104. One end of the partition 2 is located on the side wall of the receiving box 1 away from the outlet 102, and the other end extends to the outlet 102. The outlet 102 is divided by the partition 2 into a material inlet 105 and an airflow inlet 106, distributed vertically. An air vent 107 is located on the side wall of the airflow space 104 and can be connected to an external fan via a pipeline to provide airflow to the airflow space 104.

[0037] After entering the material space 103 through inlet 101, the material falls above the partition 2. Airflow generated by an external fan enters the airflow space 104 through vent 107 and flows along the airflow space 104 and the feeding pipe 3. The high-speed airflow in the feeding pipe 3 reduces the pressure inside, thus lowering the air pressure at the material outlet 105 compared to the pressure at the inlet 101. Under negative pressure, the material moves along the partition 2 towards the material outlet 105, and is then carried by the airflow ejected from the airflow outlet 106 into the feeding pipe 3, completing the entire conveying process. The temporary storage and transfer functions of the material space 103 buffer fluctuations in the initial material input, maintain the stability of the supply, ensure continuous and uninterrupted conveying, and reduce the risk of pipe blockage.

[0038] In some examples, such as Figure 4 As shown, the material space 103 is located above the partition 2 and directly receives the material entering from the inlet 101. The partition 2 is arranged at an angle, and the height of the partition 2 gradually decreases along the direction close to the material inlet 105, so that the material space 103 presents an inclined arrangement from high to low. Under the action of gravity, the material has a natural tendency to slide towards the material inlet 105, which works in conjunction with the negative pressure adsorption effect.

[0039] Specifically, the inclination angle of the baffle 2 can be greater than the angle of repose of the material, thus enabling the material to slide along the surface of the baffle 2 towards the material inlet 105 under the influence of its own gravity, and flow out of the receiving box 1 from the material inlet 105. Simultaneously, the material inlet 105 is located above the airflow inlet 106. The airflow from the airflow inlet 106 will blow up the material falling from the material inlet 105 and drive it to flow along the feeding pipe 3, thereby achieving material conveying. Furthermore, after the airflow in the airflow space 104 flows out from the airflow inlet 106, a negative pressure is formed near the material inlet 105. This negative pressure, combined with the tendency of the material to slide down the baffle 2, further pulls the material towards the material inlet 105. Finally, under the combined action of gravity, the guidance of the baffle 2, and the negative pressure adsorption, the material smoothly passes through the material inlet 105 and enters the subsequent conveying stage.

[0040] The inclined arrangement of partition 2, in conjunction with the material space 103, utilizes gravity to achieve natural material guidance, reducing reliance on additional power and lowering energy consumption. This also reduces the risk of material accumulation and blockage within the material space 103, improving conveying smoothness.

[0041] In some examples, such as Figure 4 As shown, the airflow space 104, as part of the receiving box 1 separated by the partition 2, has an inclined bottom. Specifically, the height of the bottom of the airflow space 104 gradually decreases along the direction close to the airflow outlet 106. The air outlet 107 is located on the side wall of the higher side of the airflow space 104 and is connected to an external fan through a pipe to provide airflow to the airflow space 104; the airflow outlet 106 is located at the lower end of the bottom of the airflow space 104 and is connected to the subsequent airflow channel or space.

[0042] The airflow space 104 is located below the partition 2, and its bottom slopes from the side where the air vent 107 is located to the side where the air vent 106 is located. The air vent 107 is at a higher position, and the air vent 106 is at a lower position, forming a height difference. Since the material inlet 105 is located above the air vent 106, material may enter the airflow space 104 through the air vent 106. In this embodiment, the bottom of the airflow space 104 gradually decreases in the direction close to the air vent 106. After the material enters the airflow space 104, the bottom of the airflow space 104 can prevent the material from moving towards the air vent 107, thereby preventing the material from entering the external fan, ensuring the safety of the external fan, and improving the safety of the equipment.

[0043] In some examples, such as Figure 4 As shown, inlet 101 faces upward and is funnel-shaped, used to receive materials, with material outlet 105 located at the end where the dimensions gradually decrease. In other embodiments, inlet 101 may also have other shapes and orientations, which are not limited here. As the material moves from inlet 101 to material outlet 105, the material space 103 gradually narrows in dimensions such as horizontal or vertical height, constraining and guiding the direction of material movement. This reduces the possibility of material accumulation and blockage within the space, improving the smoothness of material conveying. At the same time, the concentrated material distribution combined with the enhanced negative pressure adsorption effect improves material conveying efficiency, ensuring that the material can be quickly and stably conveyed from inlet 101 to material outlet 105, thereby ensuring the efficient operation of the entire harvester material conveying system.

[0044] In some examples, such as Figure 4As shown, the air vent 107 is located at the larger end of the airflow space 104, while the air outlet 106 is located at the gradually narrowing end. Together, they form a "widening-narrowing" spatial configuration along the airflow path. As the airflow moves from the air vent 107 to the air outlet 106, the narrowing channel increases the flow velocity. When the accelerated high-speed airflow exits from the air outlet 106, it can drive the material to flow at a higher speed in the feed pipe 3, improving material conveying efficiency. Furthermore, it can create a stronger negative pressure near the material outlet 105, thereby more efficiently adsorbing the material and moving it towards the material outlet 105. Simultaneously, the gradually decreasing size of the airflow space 104 guides the airflow to concentrate towards the air outlet 106, preventing the airflow from diffusing or forming eddies within the space, ensuring stable airflow direction and uniform velocity. Of course, in other embodiments, the airflow space 104 can also adopt other shapes, which are not limited here.

[0045] In some examples, such as Figure 4 As shown, outlet 102, as the end structure of receiving box 1, is directly connected to one end of feeding pipe 3, and the other end of feeding pipe 3 is connected to grain bin 4, forming a complete material conveying path, ensuring that the material can smoothly enter grain bin 4 from receiving box 1 through feeding pipe 3.

[0046] In some examples, such as Figure 3 and Figure 4 As shown, one end of the first pipe 301 is fixedly connected to the outlet 102 of the receiving box 1 (e.g., by flange or welding), and the other end is connected to the second pipe 302 via a rotating joint (e.g., a rotary bearing or hinge), forming a detachable rotating fulcrum. The end of the second pipe 302 is the material output port. The internal spaces of the first pipe 301 and the second pipe 302 are always connected to ensure that the material can flow smoothly through the channel at the rotating joint without affecting the continuity of conveying during rotation.

[0047] The second pipe 302 rotates to be directly above the grain silo 4, with its output port facing vertically or at an angle toward the inlet of the grain silo 4, ensuring that the material falls into the grain silo 4. The second pipe 302 rotates around the rotation point away from the top of the grain silo 4 (such as swinging to the side or rear) to reserve space for the installation, disassembly, or swing unloading function of the grain silo 4, and to avoid mechanical interference between the pipe and the grain silo 4.

[0048] In some examples, the material conveying equipment also includes a frame 5, a receiving box 1 connected to the frame 5, and a transfer cylinder 6 rotatably mounted on the frame 5. For example... Figure 1 and Figure 2As shown, the transfer cylinder 6 can be arranged vertically, with its rotation axis parallel to the ground. The inner side of the transfer cylinder 6 has multiple transfer troughs 601 distributed circumferentially around the cylinder. The transfer cylinder 6 also has a loading position 602 and a unloading position 603. The loading position 602 is located below the central axis of the transfer cylinder 6, near the header or threshing device. The harvester's conveying device can transport the harvested crop to the inner side of the transfer cylinder 6 and unload the material at the loading position 602. The transfer trough 601 located at the loading position 602 can receive the harvested crop. The unloading position 603 is located above the central axis and corresponds to the inlet 101 of the receiving box 1, ensuring that the material falls into the receiving box 1 by gravity.

[0049] When the transfer cylinder 6 rotates, the lower half of the transfer trough 601 passes the loading position 602. Material is fed into the transfer trough 601 by a conveyor or other means. The transfer trough 601 rotates upward with the transfer cylinder 6, and the material is lifted in the trough to the unloading position 603 above the central axis. During this process, gravity or the trough structure, such as the baffle 7, is used to prevent the material from slipping. When the transfer trough 601 rotates to the unloading position 603, the trough opening faces the inlet 101 of the receiving box 1, and the material falls out of the trough due to gravity into the material space 103 of the receiving box 1. Multiple transfer troughs 601 operate alternately to achieve continuous material conveying and eliminate the fluctuation problem of traditional intermittent feeding.

[0050] Optionally, there can be two stops 7, both of which are fixedly connected to the frame 5. The two stops 7 are located on the same circumference, and the diameter of this circumference can be equal to the inner diameter of the transfer cylinder 6. The transfer cylinder 6 is fitted around the outer circumference of the two stops 7, realizing a rotatable connection between the transfer cylinder 6 and the frame 5. The transfer cylinder 6 can rotate under the drive of components such as a transfer motor, thereby realizing the transfer of materials. Installing the transfer cylinder 6 through the stops 7 simplifies the installation structure of the transfer cylinder 6 and makes the structure of the material conveying equipment more compact. Of course, users can also use other methods to connect the transfer cylinder 6 to the frame 5 as needed, which is not limited here.

[0051] In some examples, such as Figure 1 and Figure 2 As shown, the air pump 8 is fixed to the frame 5 by a bracket and is located in the middle space of the transfer cylinder 6. The compact layout is achieved by utilizing the unused area between the transfer cylinder 6 and the frame 5. The air outlet of the air pump 8 is connected to the air outlet 107 of the airflow space 104 of the receiving box 1 through a flexible hose or rigid pipe to form a closed airflow channel, ensuring that the airflow is stably delivered to the airflow space 104.

[0052] This application also provides a harvester, including a harvesting device, a conveying device, a grain bin, and the material conveying equipment described in any of the above embodiments; wherein, the harvesting device is used to harvest crops; the conveying device is used to convey the harvested material to the material conveying equipment; and the material conveying equipment is used to convey the material to the grain bin. The structures of the harvesting device, the conveying device, and the grain bin can be referred to in the prior art, and will not be described in detail here.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A material conveying apparatus for a harvester, characterized in that, include: A receiving box (1) has an inlet (101) for material entry and an outlet (102) for material exit. The receiving box (1) is provided with a partition (2) for dividing the receiving box (1) into a material space (103) and an airflow space (104). One end of the partition (2) extends to the outlet (102) and divides the outlet (102) into a material port (105) located in the material space (103) and an airflow port (106) located in the airflow space (104). The inlet (101) is connected to the material port (105). The side wall of the airflow space (104) is provided with an air outlet (107) for supplying airflow to the airflow space (104); The feeding pipe (3) is connected to the outlet (102) and is used to transport materials by airflow.

2. The material conveying apparatus of claim 1, wherein, The material space (103) is located above the partition (2), which is arranged at an angle to guide the material in the material space (103) to the material inlet (105).

3. The material conveying apparatus of claim 1, wherein, The bottom of the airflow space (104) is arranged at an angle so that the airflow from the air vent (107) flows at an angle from top to bottom toward the airflow port (106).

4. The material conveying apparatus of claim 1, wherein, The cross-sectional area of ​​the material space (103) gradually decreases from the inlet (101) to the material outlet (105).

5. The material conveying apparatus of claim 1, wherein, The cross-sectional area of ​​the airflow space (104) gradually decreases from the air outlet (107) to the airflow port (106).

6. The material conveying apparatus of claim 1, wherein, The feeding pipe (3) includes a first pipe (301) and a second pipe (302) that are interconnected. One end of the first pipe (301) is connected to the outlet (102), and the other end is rotatably connected to one end of the second pipe (302). The end of the second pipe (302) away from the first pipe (301) is configured to be movable between a position above the grain silo (4) and a position away from the grain silo (4).

7. A material conveying apparatus according to any one of claims 1 to 6, characterized in that Also includes: The frame (5) is rotatably provided with a transfer cylinder (6) for conveying materials to the receiving box (1), and the transfer cylinder (6) has a plurality of transfer slots (601) distributed circumferentially for loading materials. The transfer cylinder (6) also has a loading position (602) and a unloading position (603). When the transfer trough (601) is located at the loading position (602), it is used to receive materials. When the transfer trough (601) is located at the unloading position (603), it is used to feed materials into the receiving box (1). The transfer cylinder (6) is configured to rotate so that it can drive the transfer trough (601) to move between the loading position (602) and the unloading position (603).

8. A material conveying apparatus according to claim 7, characterised in that The frame (5) is also provided with a stop (7), which is located inside the transfer cylinder (6) and extends from the loading position (602) to the unloading position (603) along the circumference of the transfer cylinder (6) to block the opening of the transfer groove (601).

9. The material conveying apparatus of claim 7, wherein, An air pump (8) is also provided on the frame (5), and the outlet of the air pump (8) is connected to the air outlet (107) for delivering airflow to the airflow space (104).

10. A harvester characterized by Includes a harvesting device, a conveying device, a grain silo, and a material conveying device as described in any one of claims 1 to 9; The harvesting device is used to harvest crops; The conveying device is used to convey the harvested material to the material conveying equipment; The material conveying equipment is used to transport materials to the grain silo.

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