Feeding device for cleaning of harvester

Abstract

The utility model relates to the technical field of feeding devices, in particular to a feeding device for harvester cleaning. The feeding device solves the problem that grains conveyed by a feeding device for cleaning of a harvester in the prior art are not uniformly distributed, and the practicability of the device is improved. A plurality of material conveying grooves are formed in one side of the base, a power box is arranged on the other side of the base, a gap is formed between the base and the power box, a plurality of spiral conveying blades are arranged on the power box, the spiral conveying blades correspond to the material conveying grooves in a one-to-one mode, and the spiral conveying blades are arranged in the material conveying grooves respectively. A control structure used for synchronously controlling and driving the spiral conveying blades to rotate is arranged in the power box. According to the embodiment, the design that grains are directly conveyed through a conveying belt in the prior art is replaced, and due to the fact that the grains are conveyed in the multiple conveying grooves through the spiral conveying blades, even if the harvester part is in the horizontal state, the grains can be evenly conveyed to the cleaning device through the multiple conveying grooves.

Description

Technical Field

[0001] This utility model relates to the technical field of feeding devices, specifically to a feeding device for cleaning harvesters. Background Technology

[0002] The harvester cleaning and feeding device is used to evenly transport harvested materials (such as grains, rice, corn, etc.) to the cleaning system for subsequent processing and sorting. This device is widely used in various types of harvesters, such as grain harvesters and corn harvesters, playing a vital role in mechanized agricultural operations by improving operational efficiency and ensuring the quality of the harvest.

[0003] The existing harvester cleaning and feeding device works as follows: first, the grain to be cleaned is placed on the harvester's vibrating plate, and then the grain on the harvester is transported to the cleaning device for cleaning through the vibrating plate.

[0004] While this method accomplishes the transport of grain, the following problems remain: If the harvester is not in a horizontal position, the grain may concentrate on one side of the conveyor belt due to gravity during transport, resulting in uneven distribution of grain received by the cleaning device. One side may have excessively concentrated grain, while the other side may have less, thus affecting cleaning efficiency and grain quality. Utility Model Content

[0005] This utility model proposes a feeding device for harvester cleaning, which solves the problem of uneven grain distribution in the feeding devices of harvester cleaning in the prior art, and improves the practicality of the equipment.

[0006] The technical solution of this utility model is as follows:

[0007] A feeding device for cleaning a harvester includes a base.

[0008] The base has several material conveying troughs on one side and a power box on the other side. There is a gap between the base and the power box. The power box has several spiral conveying blades, each of which corresponds to a material conveying trough. Each spiral conveying blade is respectively installed in each material conveying trough. The power box has a control structure for synchronously controlling the rotation of each spiral conveying blade.

[0009] Furthermore, the control structure includes a first rotating shaft, which is rotatably connected to the power box. A plurality of first bevel gears are fixedly mounted on the first rotating shaft. A second rotating shaft is fixed on each of the spiral conveying blades. A second bevel gear is fixed at the end of each of the second rotating shafts. Each first bevel gear corresponds to a second bevel gear, and the first bevel gear and the second bevel gear mesh.

[0010] Furthermore, each of the spiral conveyor blades is also fixed with a dispersing plate near the power box, and the dispersing plate is set at the end of the conveying trough near the power box.

[0011] Furthermore, each of the spiral conveying blades is centrally symmetrical about the base and distributed accordingly.

[0012] Furthermore, the cross-section of each of the conveying troughs is arc-shaped, the bottom of the spiral conveying blade abuts against the conveying trough, and gaps are provided between the two sides of the conveying trough and the spiral conveying blade.

[0013] Furthermore, the base includes a mounting base and a feeding base. The feeding troughs are evenly distributed on the feeding base. A first sliding rod, a second sliding rod, a third sliding rod, and a lead screw are respectively provided around the feeding base. The first sliding rod, the second sliding rod, and the third sliding rod are all fixedly connected to the mounting base. The lead screw is rotatably connected to the mounting base. The feeding base is slidably connected to the first sliding rod, the second sliding rod, and the third sliding rod respectively. The base is also provided with a drive motor, which is fixedly connected to the lead screw.

[0014] Furthermore, each of the spiral conveyor blades is provided with an anti-stick coating, which is made of polytetrafluoroethylene material.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] The working process of this embodiment is as follows: When it is necessary to feed the harvester cleaning device, the first rotating shaft is driven to rotate by the motor. Under the action of the first bevel gear and the second bevel gear, each spiral conveyor blade begins to rotate. At this time, the grain to be cleaned is poured into each conveying trough. The spiral conveyor blades drive the grain to move towards the gap between the base and the power box, thus completing the grain conveying operation.

[0017] In this embodiment, several conveying troughs and a power box are set on the base, and several spiral conveying blades are set on the power box. The rotation of each spiral conveying blade is synchronously controlled by the control structure, thereby completing the material conveying operation of the grain. This replaces the design of the prior art which directly transports grain through a conveyor belt. In this embodiment, since the grain is transported in multiple conveying troughs through spiral conveying blades, even if the harvester is in a horizontal position, the grain can be evenly transported to the cleaning device through multiple conveying troughs. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the existing technology;

[0020] Figure 2 This is a schematic diagram of the overall structure of Example 1. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the overall structure of Example 1. Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the connection structure between the material conveying trough and the screw conveyor blade in Example 1;

[0023] Figure 5 This is a schematic diagram of the overall structure of Example 2;

[0024] Figure 6 This is a schematic diagram of the connection structure between the mounting base and the material conveying base in Example 2.

[0025] In the picture:

[0026] 1. Base; 11. Mounting seat; 12. Conveying seat; 2. Conveying trough; 3. Second rotating shaft; 31. Spiral conveyor blade; 32. Second bevel gear; 4. Power box; 5. First rotating shaft; 51. First bevel gear; 6. Dispersing plate; 71. First sliding rod; 72. Second sliding rod; 73. Third sliding rod; 74. Lead screw; 741. Drive motor. Detailed Implementation

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

[0028] Example 1:

[0029] like Figures 2-4 As shown in the figure, this embodiment proposes a feeding device for cleaning a harvester, the structure of which includes a base 1.

[0030] In this embodiment, several conveying troughs 2 are arranged on one side of the base 1, and the power box 4 is arranged on the other side of the base 1. A gap is provided between the base 1 and the power box 4. In this embodiment, the screw conveyor blades 31 inside the power box 4 fill the gap between the grain conveying trough base 1 and the power box 4, allowing the grain to fall into the cleaning device for easy cleaning. Several screw conveyor blades 31 are arranged on the power box 4, each screw conveyor blade 31 corresponding to a one-to-one conveying trough 2, and each screw conveyor blade 31 is respectively arranged in each conveying trough 2. The control structure is arranged inside the power box 4 to synchronously control the rotation of each screw conveyor blade 31. In this embodiment, the base 1 and the power box 4 are respectively installed on the harvester. In this embodiment, the grain and impurity mixture separated from the threshing drum is conveyed to the cleaning device via the screw conveyor blades 31.

[0031] The control structure in this embodiment includes a first rotating shaft 5, which is rotatably connected to a power box 4. Several first bevel gears 51 are fixedly mounted on the first rotating shaft 5. A second rotating shaft 3 is fixedly mounted on each spiral conveyor blade 31. Second bevel gears 32 are fixedly mounted at the ends of the second rotating shaft 3. Each first bevel gear 51 and second bevel gear 32 corresponds one-to-one and meshes. In this embodiment, the motor driving the first rotating shaft 5 is mounted on the harvester, and power is transmitted through a conveyor belt. This embodiment synchronously controls the rotation of each spiral conveyor blade 31 through the meshing of multiple first bevel gears 51 and multiple second bevel gears 32, thereby achieving synchronous control of each spiral conveyor blade 31. This makes the transmission system more compact, reduces external space requirements, and improves the reliability and stability of the system.

[0032] In this embodiment, the dispersing plate 6 is fixedly installed on the side of each spiral conveyor blade 31 near the power box 4, and the dispersing plate 6 is installed at the end of the conveying trough 2 near the power box 4. When the grain moves to the vicinity of the dispersing plate 6 through the spiral conveyor blade 31, the second rotating shaft 3 drives the dispersing plate 6 to rotate, scattering the grain mixture in the air, so that the grain falls more evenly into the cleaning device, reducing grain piling and affecting the screening of the grain.

[0033] In this embodiment, each spiral conveyor blade 31 is symmetrically distributed about the center of the base 1. This design results in the spiral conveyor blades 31 on both sides rotating in different directions, so that the grains on both sides are thrown towards each other when they are thrown into the cleaning device, thus effectively preventing the grains from gathering on one side due to the same throwing direction, which would affect the cleaning effect.

[0034] In this embodiment, each conveying trough 2 has an arc-shaped cross-section. The bottom of the spiral conveying blade 31 abuts against the conveying trough 2, and gaps are left between the sides of the conveying trough 2 and the spiral conveying blade 31. This design allows the grain to gather towards the bottom of the conveying trough 2 under its own gravity after being separated by the release roller, facilitating the conveying by the spiral conveying blade 31. The gaps between the sides of the conveying trough 2 and the spiral conveying blade 31 enlarge the inlet of the conveying trough 2, ensuring that the grain can be more easily squeezed into the conveying trough 2.

[0035] In this embodiment, the anti-stick coating is applied to each spiral conveyor blade 31, and the anti-stick coating is made of polytetrafluoroethylene (PTFE). PTFE has a low coefficient of friction and excellent non-stick properties, which effectively prevents materials from adhering to the spiral conveyor blades 31, reducing material accumulation and jamming during conveying. Moreover, because materials do not easily adhere, the surface of the conveyor blades is smoother, allowing materials to flow smoothly, reducing resistance during conveying, and improving overall conveying efficiency.

[0036] The working process of this embodiment is as follows: When it is necessary to feed the harvester cleaning device, the first rotating shaft 5 is driven to rotate by the motor. Under the action of the first bevel gear 51 and the second bevel gear 32, each spiral conveying blade 31 starts to rotate. At this time, the grain to be cleaned is poured into each conveying trough 2. The spiral conveying blade 31 drives the grain to move towards the gap between the base 1 and the power box 4, thus completing the grain conveying operation.

[0037] Example 2:

[0038] like Figures 4-6 As shown, during actual grain transportation, the grain may become moist, causing some grain to become embedded between the screw conveyor blade 31 and the conveying trough 2. To facilitate the cleaning of this portion of grain, this embodiment makes the following improvements based on Embodiment 1: The base 1 in this embodiment includes a mounting base 11 and a conveying base 12. The conveying troughs 2 are evenly distributed on the conveying base 12. A first sliding rod 71, a second sliding rod 72, a third sliding rod 73, and a lead screw 74 are arranged around the conveying base 12. The first sliding rod 71, the second sliding rod 72, and the third sliding rod 73 are all fixedly connected to the mounting base 11, and the lead screw 74 is rotatably connected to the mounting base 11. The conveying base 12 is slidably connected to the first sliding rod 71, the second sliding rod 72, and the third sliding rod 73 respectively. A drive motor 741 is arranged on the base 1 and is fixedly connected to the lead screw 74. This embodiment ensures that the conveying base 12 will not experience movement deviation during movement through the first sliding rod 71, the second sliding rod 72, and the third sliding rod 73. In this embodiment, the movement of the feeder seat 12 is controlled by the lead screw 74. Since it is difficult to control the rotation of the lead screw 74 in the reverse direction, when the drive motor 741 is de-energized and not working, the position of the feeder seat 12 is self-locked, and the feeder seat 12 will not move. This design makes it easier to control the position of the feeder seat 12, and the stopping position of the feeder seat 12 is more accurate.

[0039] When some grain is found to be stuck between the screw conveyor blade 31 and the conveying trough 2, the drive motor 741 is started, and the conveying seat 12 is controlled to move away from the screw conveyor blade 31 through the lead screw 74. At this time, the screw conveyor blade 31 and the conveying trough 2 can be cleaned. After cleaning is completed, the drive motor 741 is started in reverse so that the conveying seat 12 returns to its original position.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A feeding device for cleaning a harvester, comprising a base (1), characterized in that, The base (1) has several material conveying troughs (2) on one side and a power box (4) on the other side. There is a gap between the base (1) and the power box (4). The power box (4) has several spiral conveying blades (31). Each spiral conveying blade (31) corresponds to one of the material conveying troughs (2). Each spiral conveying blade (31) is respectively set in each material conveying trough (2). The power box (4) has a control structure for synchronously controlling the rotation of each spiral conveying blade (31).

2. The feeding device for cleaning a harvester according to claim 1, characterized in that, The control structure includes a first rotating shaft (5), which is rotatably connected to the power box (4). A plurality of first bevel gears (51) are fixed on the first rotating shaft (5). A second rotating shaft (3) is fixed on each of the spiral conveying blades (31). A second bevel gear (32) is fixed at the end of each of the second rotating shafts (3). Each first bevel gear (51) and second bevel gear (32) corresponds to each other, and the first bevel gear (51) and the second bevel gear (32) mesh.

3. The feeding device for cleaning a harvester according to claim 1, characterized in that, Each of the spiral conveyor blades (31) is also fixed with a dispersing plate (6) near the power box (4), and the dispersing plate (6) is set at the end of the conveying trough (2) near the power box (4).

4. The feeding device for cleaning a harvester according to claim 1, characterized in that, The spiral conveying blades (31) are symmetrical about the center of the base (1) and distributed accordingly.

5. The feeding device for cleaning a harvester according to claim 1, characterized in that, Each of the conveying troughs (2) has an arc-shaped cross-section. The bottom of the spiral conveying blade (31) abuts against the conveying trough (2), and there is a gap between the two sides of the conveying trough (2) and the spiral conveying blade (31).

6. The feeding device for cleaning a harvester according to claim 1, characterized in that, The base (1) includes a mounting base (11) and a feeding base (12). The feeding grooves (2) are evenly distributed on the feeding base (12). The feeding base (12) is provided with a first sliding rod (71), a second sliding rod (72), a third sliding rod (73) and a lead screw (74) around its perimeter. The first sliding rod (71), the second sliding rod (72) and the third sliding rod (73) are all fixedly connected to the mounting base (11). The lead screw (74) is rotatably connected to the mounting base (11). The feeding base (12) is slidably connected to the first sliding rod (71), the second sliding rod (72) and the third sliding rod (73) respectively. The base (1) is also provided with a drive motor (741). The drive motor (741) is fixedly connected to the lead screw (74).

7. The feeding device for cleaning a harvester according to claim 1, characterized in that, Each of the spiral conveyor blades (31) is provided with an anti-stick coating, which is made of polytetrafluoroethylene material.

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