Weeding device for potato crop harvester

Abstract

A weed-blocking device for a potato crop harvester comprises a central axis and a plurality of weeding rods arranged at intervals on the central axis, and a limiting device for limiting the positional relationship between the weeding rods and the upper conveyor belt of the potato crop harvester; each weeding rod is mounted on the central axis through its own rotating sleeve, and the rotating sleeve can rotate relative to the central axis to drive the corresponding weed-blocking rod to move independently around the central axis; a detachable limiting piece for axially limiting the corresponding rotating sleeve is provided at a position near both ends of each rotating sleeve on the central axis. The weeds appearing at each weed-blocking rod can be removed in time, avoiding the problem of a large amount of weeds accumulating and blocking the forward passage of potato crops, and the spacing between adjacent weeding rods can be adjusted by increasing or decreasing the number of weeding rods on the central axis when the limiting piece is released to limit the rotating sleeve. Finally, the cleanliness of the potato harvesting operation is ensured, and the efficiency of potato crop harvesting is improved.

Description

Technical Field

[0001] The invention relates to a potato crop harvester, in particular to a weeding device for the potato crop harvester. Background Art

[0002] During the process of harvesting potato crops, potato crop harvesters (potato crop digging machines, potato crop picking machines, potato crop digging, loading, conveying and other combined function machines, etc.) usually entrain many potato crop seedlings, weeds, etc. into the transmission device, and eventually enter the receiving box or cover the dug crops. If they are not cleaned up, the workload of the later crop harvesting will increase, or the seedling removal and weeding operations will be required again to avoid affecting the crop sales.

[0003] The solution to this problem in the prior art is usually to manually clean the weeds in time during the potato crop harvesting process, or to remove the weeds in the material collection box before the potato crops are centrally stored after harvesting.

[0004] No matter which solution is used, the intensity of manual labor is increased, the work efficiency is low, and it is difficult to ensure the weed removal effect.

[0005] At present, there are weeding components on the market for blocking and removing seedlings and weeds during the harvesting of potato crops. However, due to their relatively simple structure, although they have a certain weeding and cleaning effect, they affect the normal harvesting efficiency of potato crops to a certain extent, or the cleaning effect cannot meet the needs of users. Therefore, how to automatically and effectively remove seedlings and weeds during the harvesting of potato crops while ensuring that the harvesting efficiency of potato crops is not affected is a technical problem that technical personnel in this field are eager to solve. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a weeding device for a potato crop harvester.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: a weeding device for a potato crop harvester, the weeding device comprising a central axis, a plurality of weeding rods arranged at intervals on the central axis, and a limiting device for limiting the rotation of the weeding rods;

[0008] The weeding rod comprises a weeding rod balancing section and a weeding rod operating section, and the limiting device supports the weeding rod balancing section to limit the relative position between the weeding rod operating section and the corresponding conveyor belt of the potato crop harvester in a static state;

[0009] Each weeding rod is fixedly connected to a rotating sleeve, and the weeding rods are mounted on the central axis through their respective rotating sleeves. The rotating sleeves can rotate relative to the central axis to drive the corresponding weeding rod to move independently around the central axis;

[0010] A limiting piece for axially limiting the corresponding rotating sleeve is provided near the two ends of each rotating sleeve on the central axis. The limiting piece is detachably connected to the central axis, and there is a certain interval between adjacent limiting pieces of adjacent rotating sleeves. Therefore, after the limitation of the rotating sleeve by the limiting piece is released, the spacing of the weeding rods can be adjusted by adjusting the position of the rotating sleeve on the central axis and increasing or decreasing the number of weeding rods installed on the central axis. After the spacing of the weeding rods is adjusted, it can be fixed and limited by the limiting piece.

[0011] Furthermore, the limiting member includes an adjustment sleeve capable of axially moving relative to the central axis and a fastening screw I for fixing the adjustment sleeve on the central axis.

[0012] Furthermore, the limiting device includes a limiting rod, and the limiting rod is rotatably connected to the central axis through two connecting plates.

[0013] Furthermore, one of the two connecting plates is connected to the same end of the central axis and the limiting rod, and the other connecting plate is connected to the other end of the central axis and the limiting rod.

[0014] Furthermore, a long hole is provided on the connecting plate for fixed connection with a corresponding transmission device (20).

[0015] As another embodiment, the limiting device includes a limiting rod, which is fixedly connected to the central axis through two connecting plates, and an adjustment pad is provided at the upper end of the limiting rod for adjusting the relative position between the weeding rod working section and the corresponding conveyor belt of the potato crop harvester when it is in a stationary state.

[0016] Furthermore, the weeding rod balancing section is linear or curved.

[0017] Furthermore, the weeding rod balancing section is linear, and a heavy hammer is also provided on the weeding rod balancing section.

[0018] Furthermore, the weight is spherical or cylindrical, and is provided with a through hole for cooperating with the weeding rod balancing section. A fastening screw II is provided on the weight perpendicular to the through hole for fixing the weight to the weeding rod balancing section.

[0019] Furthermore, the weeding rod is formed by bending the same section of tube profile or rod profile, or the weeding rod is formed by welding or otherwise connecting the profile of the weeding rod balancing section and the profile of the weeding rod working section to the same rotating sleeve.

[0020] Beneficial effects:

[0021] According to the present invention, each weeding rod is installed on the central axis through its own independent rotating sleeve. Combined with the balance reset function of the weeding rod balance section, as long as there are weeds accumulated at any weeding rod, the corresponding weeding rod operation section will be forced to move backward around the central axis, so that the weeds are automatically removed to the open space between the corresponding transmission device and the next-level transmission device 30 through the rotation of the transmission device and the action of gravity, and the weeds appearing at the weeding rod can be removed in time, avoiding the problem of a large amount of weeds accumulating and blocking the forward passage of the potato crops, not only ensuring the cleanliness of the harvested potato crops, but also greatly improving the harvesting efficiency of the potato crops. The present invention uses a detachable limiter on both sides of the rotating sleeve to limit the rotating sleeve, so that after the limiter is released from the limit of the rotating sleeve, the spacing of the weeding rods can be easily adjusted by adjusting the position of the rotating sleeve on the central axis and increasing or reducing the number of weeding rods installed on the central axis. Thereby, the potato crop harvester can meet the appropriate spacing of the weeding rods when harvesting potato crops of different diameters in different plots, and can achieve both weeding effect and potato crop harvesting efficiency.

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of Embodiment 1 of the present invention.

[0024] Figure 2 It is a partial schematic diagram of the structure of the second embodiment of the present invention.

[0025] Figure 3 The figure is a schematic diagram of the installation state of the present invention on a potato crop harvester.

[0026] Figure 4 It is a schematic diagram of the coordination state between the connecting plate and the upper-level transmission device of the potato crop harvester in the present invention.

[0027] Figure 5 It is a schematic diagram of another embodiment of the limiting device in the present invention.

[0028] In the figure, 10, the present invention, 20, the upper transmission device, 30, the lower transmission device, 1, the central axis, 2, the connecting plate, 201, the long hole, 3, the limit rod, 401, the weeding rod balancing section, 402, the weeding rod working section, 5, the rotating sleeve, 6, the fastening screw I, 7, the adjusting sleeve, 7", the positioning screw, 8, the fastening screw II, 9, the heavy hammer, 11, the adjusting pad, 12, the supporting member. DETAILED DESCRIPTION

[0029] Example 1 Figure 1 :

[0030] A weeding device for a potato crop harvester comprises a central axis 1 and a plurality of weeding rods arranged at intervals on the central axis, and a limiting device for limiting the rotation of the weeding rods is also provided.

[0031] The weeding rod comprises a weeding rod balancing section 401 and a weeding rod operating section 402. The limiting device is used to support the weeding rod balancing section 401 to limit the relative position between the weeding rod operating section 402 and the corresponding conveyor belt of the potato crop harvester in a static state.

[0032] In this embodiment, the weeding rod is preferably in the shape of a "7", and the limiting device includes a limiting rod 3, which is connected to the central axis 1 through two connecting plates 2.

[0033] Specifically, one of the connecting plates 2 is connected to the same end of the central shaft 1 and the limiting rod 3 , and the other connecting plate is connected to the other end of the central shaft 1 and the limiting rod 3 .

[0034] A long hole 201 for fixed connection with a corresponding device (the upper transmission device 20 in this embodiment) is provided on the connecting plate 2. After the positional relationship between the weeding rod operation section 402 and the upper transmission device 20 is determined, the long hole 201 is matched with a corresponding one of the two rows of mounting holes 20a arranged in an arc shape on the upper transmission device 20 and fixedly installed by bolts. In this embodiment, the limiting rod 3 may not be connected to the central axis 1, but may be directly fixed to a suitable position on the transmission device bracket or other brackets to limit the balance section of the weeding rod.

[0035] In another embodiment, Figure 5 As shown, the limiting rod 3 in the limiting device can also be fixedly installed relative to the central axis 1. Specifically, the central axis 1 is fixedly connected to the limiting rod 3 through a connecting plate, and the limiting rod 3 is fixed to the upper transmission device through a support member 12 (the support member can be two support rods correspondingly connected to the two ends of the limiting rod 12, or other structures such as a support frame, as long as it can meet the use). With such a structure, the relative position between the weeding rod operating section 402 and the corresponding conveyor belt of the potato crop harvester in a stationary state can be adjusted by setting an adjustment pad 11 at the upper end of the limiting rod 3. The adjustment pad 11 can be a rubber pad, a wooden pad or an adjustment member of other materials and shapes that can play an adjustment role.

[0036] The weeding rod can be in the shape of a "7", as in the first embodiment. In practical applications, the overall shape of the weeding rod can be selected as needed, for example, it can also be in the shape of a " ”, etc., so that an upward convex section is added to the "7" shape to cooperate with the limit rod to limit; or it is roughly in the shape of a "7", in which the balance section and the working section can be a straight line or a curve with a certain curvature (for example Figure 5 In the illustrated embodiment, the lower portion of the weeding rod operating section 402 is arc-shaped. In short, the weeding rod can be in any shape that meets the requirements of the application.

[0037] The weight of the weeding rod balancing section itself can be used in conjunction with a limiting device to limit the weeding rod operating section.

[0038] Alternatively, a weight may be further provided on the linear weeding rod balancing section, and the weeding rod operation section may be limited by adjusting the position of the weight on the weeding rod balancing section and then cooperating with the limiting device. The weight may be spherical or cylindrical.

[0039] In this embodiment, the weeding rod balancing section 401 is linear, and a weight is provided on the weeding rod balancing section 401. Specifically, a through hole is provided on the weight for mounting with the weeding rod balancing section 401, and a threaded hole is provided perpendicularly to the through hole on the weight 9, and a fastening screw II8 is provided at the threaded hole for fixing the weight to the horizontal setting section of the weeding rod. The threaded hole can also be replaced by a light hole, and then a nut is welded at the end of the corresponding light hole to match the corresponding fastening screw II8.

[0040] The weight may also be fixed to the corresponding weeding rod balancing section in other ways, for example, the weight 9 may be screwed to the weeding rod balancing section 401 using a threaded hole.

[0041] Each weeding rod is fixedly connected to a rotating sleeve 5 , and the weeding rods are mounted on the central shaft 1 through their respective rotating sleeves 5 . The rotating sleeves 5 can rotate relative to the central shaft 1 to drive the corresponding weeding rod to move independently around the central shaft 1 .

[0042] A limiting piece for axially limiting the corresponding rotating sleeve 5 is provided near the two ends of each rotating sleeve 5 on the central axis 1. The limiting piece is detachably connected to the central axis 1, and there is a certain interval between adjacent limiting pieces of adjacent rotating sleeves 5. Therefore, after the limitation of the rotating sleeve by the limiting piece is released, the spacing between adjacent weeding rods can be adjusted by adjusting the position of the rotating sleeve 5 on the central axis 1 and increasing or decreasing the number of weeding rods installed on the central axis 1. After the spacing of the weeding rods is adjusted, it can be fixed and limited by the limiting piece.

[0043] In this embodiment, the limiting member includes an adjustment sleeve 7 capable of axial movement relative to the central shaft 1 and a fastening screw Ⅰ6 for fixing the adjustment sleeve 7 on the central shaft.

[0044] Also, if Figure 2The second embodiment shown: the limiting member is a positioning screw 7" that is directly threadedly connected to the central axis 1. With this structural form, multiple threaded holes can be directly made on the central axis 1, and then the positioning screw 7" can be used to increase or decrease the number of weeding rods by changing the position of the positioning screw 7" and the rotating sleeve 5 to adjust the distance between adjacent weeding rods.

[0045] The weeding rod can be formed by bending the same section of tube profile or rod profile.

[0046] Alternatively, each weeding rod may be formed by welding a profile of a weeding rod balancing section and a profile of a weeding rod operating section to the same rotating sleeve or connecting them in other ways.

[0047] The invention is mainly applicable to a potato crop harvester comprising at least two-stage transmission devices. When in use, the harvester is installed between two adjacent stages of transmission devices, usually on a bracket of an upper stage transmission device.

[0048] Specifically, the central shaft 1 can be fixedly mounted on a corresponding device of a potato crop harvester.

[0049] By changing the thickness of the adjustment pad on the upper end of the limit rod of the limit device, or by rotating the connecting plate 2, the position of the limit rod 3 is adjusted to the required position (the specific operation for the limit rod directly fixed on the corresponding transmission device or the limit rod installed in other ways is different, which will not be described in detail here). Then move the weight 9 on each weeding rod so that the balance section of the weeding rod is stably supported on the limit rod 3.

[0050] By adopting the present invention, after removing the stopper and the central shaft, the number of rotating sleeves installed on the central shaft can be increased or decreased to facilitate the adjustment of the weeding rods to a suitable spacing. The position of the stopper on both sides of the corresponding rotating sleeve is preferably such that the stopper can ensure the position without affecting the ability of the rotating sleeve to rotate backward when weeds appear.

[0051] It should be noted that the above embodiments are only used to illustrate the present invention, but the present invention is not limited to the above embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A weeding device for a potato crop harvester, characterized in that: The weeding device comprises a central shaft (1), a plurality of weeding rods arranged at intervals on the central shaft, and a limiting device for limiting the rotation of the weeding rods; The weeding rod comprises a weeding rod balancing section (401) and a weeding rod operating section (402), and the limiting device supports the weeding rod balancing section (401) to limit the relative position between the weeding rod operating section (402) and a corresponding conveyor belt of the potato crop harvester in a static state; Each weeding rod is fixedly connected to a rotating sleeve (5), and the weeding rods are mounted on the central shaft (1) via their respective rotating sleeves, and the rotating sleeves (5) are capable of rotating relative to the central shaft (1) to drive the corresponding weeding rod to move independently around the central shaft (1); Positions on the central shaft (1) near both ends of each rotating sleeve (5) are provided with limiting members for axially limiting the corresponding rotating sleeve (5); the limiting members are detachably connected to the central shaft; adjacent limiting members of adjacent rotating sleeves are spaced apart from each other; thus, after the limiting members are released from limiting the rotating sleeve, the spacing of the weeding rods can be adjusted by adjusting the position of the rotating sleeve on the central shaft and increasing or decreasing the number of weeding rods installed on the central shaft; after the spacing of the weeding rods is adjusted, the limiting members can be used to fix the spacing.

2. A weeding device for a potato crop harvester according to claim 1, characterized in that: The limiting member comprises an adjustment sleeve (7) capable of axially moving relative to the central shaft (1) and a fastening screw I (6) for fixing the adjustment sleeve (7) on the central shaft.

3. The weeding device for a potato crop harvester according to claim 1, characterized in that: The limiting device comprises a limiting rod, and the limiting rod (3) is rotatably connected to the central shaft (1) via two connecting plates.

4. A weeding device for a potato crop harvester according to claim 3, characterized in that: One of the two connecting plates (2) is connected to the same end of the central shaft (1) and the limiting rod (3), and the other connecting plate is connected to the other end of the central shaft (1) and the limiting rod (3).

5. A weeding device for a potato crop harvester according to claim 3 or 4, characterized in that: A long hole for fixed connection with a corresponding transmission device is provided on the connection plate.

6. The weeding device for a potato crop harvester according to claim 1, characterized in that: The limiting device includes a limiting rod, which is fixedly connected to the central axis through two connecting plates. An adjustment pad is provided at the upper end of the limiting rod for adjusting the relative position between the weeding rod operating section and the corresponding conveyor belt of the potato crop harvester when the weeding rod operating section is in a stationary state.

7. A weeding device for a potato crop harvester according to any one of claims 1 to 4, characterized in that: The weeding rod balancing section (401) is linear or curved.

8. A weeding device for a potato crop harvester according to any one of claims 1 to 4, characterized in that: The weeding rod balancing section (401) is linear, and a weight (9) is also provided on the weeding rod balancing section (401).

9. A weeding device for a potato crop harvester according to claim 8, characterized in that: The weight (9) is spherical or cylindrical, and is provided with a through hole for cooperating with the weeding rod balancing section. A fixing screw II (8) for fixing the weight to the weeding rod balancing section is provided on the weight (9) perpendicular to the through hole.

10. A weeding device for a potato crop harvester according to any one of claims 1 to 4, characterized in that: The weeding rod is formed by bending the same section of tube profile or rod profile, or the weeding rod is formed by welding the profile of the weeding rod balancing section and the profile of the weeding rod working section respectively or connecting them in other ways on the same rotating sleeve.

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