Root-tuber crop double-blade harvesting module and harvester

Abstract

The utility model discloses a rhizome crop double-cutter harvesting module and a harvester. The rhizome crop double-cutter harvesting module comprises a driving connecting rod, a fixing shaft, a front side harvesting cutter and a rear side screening cutter. The front-side harvesting cutter and the rear-side screening cutter are fixed through a fixing shaft; the driving connecting rod is directly or indirectly connected with the front-side harvesting knife and the rear-side screening knife, and the front-side harvesting knife is provided with a harvesting knife handle and a knife shovel; an adjusting groove is formed in the harvesting cutter handle and used for adjusting the working height of the harvesting cutter on the front side; the rear screening knife comprises a screening knife handle and a screening grid, the screening knife handle is used for hinging, fixing and driving, and the screening grid is used for separating soil on the rhizome crops. The root crop double-cutter harvesting module is arranged on the machine frame, under the cooperation of the motor and the walking module, when root crops are harvested, the root crops are shoveled down through the harvesting cutter on the front side, and then shaking screening is conducted through the screening grid on the screening cutter on the rear side.

Description

Technical Field

[0001] This utility model belongs to the technical field of harvesting equipment for root and tuber crops, and specifically relates to a double-blade harvesting module and harvester for root and tuber crops. Background Technology

[0002] In existing technologies, harvesting root crops such as garlic requires manual digging of the crops from the ground, followed by shaking off the soil from the roots and stems using external cleaning equipment. This process is tedious and inefficient. While technically innovative garlic harvesters with shovel-like structures have significantly improved harvesting efficiency, manual shaking of the soil from the garlic remains necessary after removal from the ground. This process of removing mud and soil from root crops remains a bottleneck in garlic harvesting.

[0003] In view of the shortcomings of existing technology, as a research and development unit for harvesting equipment for root and tuber crops, it is very necessary to improve the structure of existing equipment. The purpose is to enable the rapid separation of root and tuber crops from the soil by shaking after harvesting. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, this utility model proposes a double-blade harvesting module and harvester for root and tuber crops. By setting a front and rear double-blade structure, it can realize the screening of root and tuber crops in the soil, and then achieve the complete separation of crops from soil through a screening and shaking structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A dual-blade harvesting module for root and tuber crops includes a drive linkage, a fixed shaft, and a front harvesting blade and a rear screening blade; the front harvesting blade and the rear screening blade are fixed by the fixed shaft; the drive linkage is directly or indirectly connected to the front harvesting blade and the rear screening blade.

[0007] The front harvester is equipped with a harvester handle and a blade shovel; the harvester handle is equipped with an adjustment groove for adjusting the working height of the front harvester.

[0008] The rear screening blade includes a screening handle and a screening grid. The screening handle is used for hinged fixing and driving, and the screening grid is used to separate the soil from the root crops.

[0009] The front harvester blade has an arc-shaped handle, and a protective sleeve is provided around it to prevent the metal handle from directly colliding with the root crops and causing damage.

[0010] The fixed shafts are at least two, including a front fixed shaft and a rear fixed shaft. A front blade swing seat is provided on the front fixed shaft, and the front blade swing seat is movably connected to the drive linkage. A front harvesting blade is movably fixed on the front blade swing seat. A rear screening blade is movably fixed on the rear fixed shaft. The rear screening blade is movably connected to the front blade swing seat through a secondary linkage, or directly to the front blade swing seat, or connected to the drive linkage.

[0011] The external frame is equipped with a lifting and fixing shaft, and a linkage plate is movably fixed on the lifting and fixing shaft. The linkage plate is connected to the front fixing shaft and the rear fixing shaft respectively. A lifting handle is fixed on the front fixing shaft or the rear fixing shaft. A positioning and locking component is also provided between the lifting handle and the frame. Under the drive of the lifting handle, the front fixing shaft and the rear fixing shaft can be lifted and lowered synchronously.

[0012] The frame is provided with a guide groove, and the front fixed shaft passes through the guide groove, so that the guide groove can be used for guidance and positioning during vertical lifting.

[0013] A secondary scraper is fixed on the handle of the rear screening knife. The screening grid is composed of several rods, which are mounted on the secondary scraper and have their rear ends bent downwards.

[0014] A harvester includes a frame and a control unit at the rear of the frame. The frame is equipped with a motor and a walking module. The motor is equipped with a speed-changing drive module that is connected to the walking module and a drive linkage. A root and stem crop double-blade harvesting module is movably connected to the drive linkage. An extension frame is provided at the rear of the frame, and the extension frame is equipped with height adjustment wheels.

[0015] This utility model has the following beneficial effects: It discloses a double-blade harvesting module and harvester for root and tuber crops. The double-blade harvesting module includes a drive linkage, a fixed shaft, a front harvesting blade, and a rear screening blade. The front harvesting blade and the rear screening blade are fixed by the fixed shaft. The drive linkage is directly or indirectly connected to the front harvesting blade and the rear screening blade. The front harvesting blade is equipped with a harvesting handle and a blade shovel. The harvesting handle has an adjustment groove for adjusting the working height of the front harvesting blade. The rear screening blade includes a screening handle and a screening grid. The screening handle is used for hinged fixation and driving, and the screening grid is used to separate the soil from the root and tuber crops. By mounting the double-blade harvesting module on a frame, and with the cooperation of the motor and the walking module, when harvesting root and tuber crops, the front harvesting blade first shovels the root and tuber crops, and then the rear screening blade uses the screening grid for shaking and screening, thus separating the soil from the root and tuber crops. This invention overcomes the shortcomings of the prior art, and realizes soil separation after harvesting root and tuber crops. It is an ideal double-blade harvesting module and harvester for root and tuber crops. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a double-blade harvesting module for root and tuber crops;

[0018] Figure 2 A side view of the double-blade harvesting module for root and tuber crops;

[0019] Figure 3 A top view of the double-blade harvesting module for root and tuber crops;

[0020] Figure 4 Schematic diagram of the harvester's side view structure Figure I ;

[0021] Figure 5 Schematic diagram of the harvester's side view structure Figure II ;

[0022] Figure 6 Schematic diagram of the three-dimensional structure of the harvester Figure I ;

[0023] Figure 7 Schematic diagram of the three-dimensional structure of the harvester Figure II ;

[0024] In the diagram, 1. Frame; 11. Motor; 12. Variable speed drive module; 121. Eccentric drive shaft; 122. Drive linkage; 13. Control unit; 14. Control handle; 15. Guide groove; 16. Side frame; 17. Extension frame; 2. Track assembly; 21. Draft fairing; 3. Linkage plate; 30. Lifting fixed shaft; 31. Tension spring; 32. Front fixed shaft; 33. Rear fixed shaft; 4. Front blade swing seat; 41. 42. Secondary linkage; 5. Front blade fixing plate; 6. Lifting handle; 7. Lifting clutch; 8. Locking device; 9. Positioning tooth; 10. Positioning plate; 11. Height adjustment wheel; 12. Adjustment frame; 13. Front harvesting blade; 14. Harvesting blade handle; 15. Blade shovel; 16. Vertical adjustment groove; 27. Protective sleeve; 28. Rear screening blade; 29. ​​Screening blade handle; 20. Secondary shovel; 30. Screening grid; 41. Bending part. Detailed Implementation

[0025] The present invention will be further described below through embodiments. Those skilled in the art can refer to the embodiments for implementation, and can also make technical improvements and innovations based on the existing technical solutions.

[0026] Example 1:

[0027] A double-blade harvesting module for root and tuber crops, such as Figure 1 , 2 As shown in Figure 3, it includes a drive linkage 122, a fixed shaft, a front harvesting blade 7, and a rear screening blade 8. Typically, the eccentric drive shaft 121 on the external motor 11 or the transmission drive module 12 has two symmetrically arranged eccentric drive points at both ends, and each eccentric drive point is fixed with a drive linkage 122. Therefore, the drive linkage 122 and its components are symmetrically arranged in two or two sets. It should be noted that a single drive linkage 122 can also drive the dual-blade harvesting module for this root crop; however, actual testing shows that the driving stability of a single drive linkage 122 is not as good as the dual-side drive linkage 122 drive structure in this embodiment.

[0028] In this embodiment, two fixed shafts are provided, including a front fixed shaft 32 and a rear fixed shaft 33. A front blade swing seat 4 is provided on the front fixed shaft 32, and the front blade swing seat 4 is movably connected to the drive connecting rod 122. A front harvesting blade 7 is movably fixed on the front blade swing seat 4. A rear screening blade 8 is movably fixed on the rear fixed shaft 33, and the rear screening blade 8 is movably connected to the front blade swing seat 4 through a secondary connecting rod 41. As an equivalent driving structure, the rear screening blade 8 can also be directly movably connected to the front blade swing seat 4. As an equivalent driving structure, the rear screening blade 8 can also be directly connected to the drive connecting rod 122. As for this equivalent design, the detailed structure will not be described in detail in this embodiment. Those skilled in the art can implement the above connection structure under the guidance of the above specification.

[0029] The front harvester 7 is equipped with a harvester handle 70 and a shovel 71, with the shovel located at the bottom of the harvester handle 70. A vertical adjustment groove 72 is provided on the front blade fixing plate 72 on the front blade swing seat 4 to adjust the working height of the front harvester 7. Furthermore, the harvester handle 70 of the front harvester 7 is curved and is covered with a protective sleeve 73, which can be fully covered or partially covered. The purpose of the protective sleeve 73 is to prevent the metal harvester handle 70 from directly colliding with the root crops and causing damage.

[0030] The rear screening blade 8 includes a screening handle 80 and a screening grid 82. A secondary shovel 81 is also provided at the bottom of the screening handle 80, and the screening grid 82 is welded to the rear side of the secondary shovel 81. The screening grid 82 is composed of several rods, with downward-curving portions 83 at the ends of the rods. The screening handle 80 is used for hinged fixing and driving, and the screening grid 82 is used to separate soil from root crops. This invention can also extend the arrangement area of ​​the screening grid 82 to the screening handle 80, further improving screening efficiency.

[0031] With the above structural configuration, this utility model can drive the front blade swing seat 4 to swing back and forth by rotating the drive linkage 122. The front blade swing seat 4 drives the front harvester 7 to perform digging action. The front blade swing seat 4 also drives the rear screening blade 8 to swing synchronously through the secondary linkage 41. While swinging, the garlic harvested by the front harvester 7 is shaken, thereby clearing the soil above.

[0032] Example 2:

[0033] Based on the structure of Embodiment 1, this utility model can also be equipped with a synchronous lifting function for the front harvesting blade 7 and the rear screening blade 8, such as... Figure 1 , 2 As shown in Figure 3,

[0034] A lifting and fixing shaft 30 is provided on the external frame 1. A linkage plate 3 is movably fixed on both the left and right sides of the lifting and fixing shaft 30. The linkage plate 3 is connected to the front fixing shaft 32 and the rear fixing shaft 33 respectively. A tension spring 31 is also provided between the linkage plate 3 and the side frame 16. The tension spring 31 is used to achieve the tension and tightening of the entire root crop double-blade harvesting module after positioning, so as to prevent shaking during operation.

[0035] A lifting handle 5 is fixed on the front fixed shaft 32. A positioning locking assembly is also provided between the lifting handle 5 and the frame 1. In this embodiment, the positioning locking assembly includes a positioning plate 54 fixed on the frame 1. The rear side of the positioning plate 54 is provided with positioning teeth 53. A locking device 52 is provided in cooperation with the positioning teeth 53. The locking device 52 is also connected to the lifting clutch 51 below the lifting handle 5 to realize the control of lifting positioning locking. Under the drive of the lifting handle 5, the front fixed shaft 32 and the rear fixed shaft 33 can be lifted and lowered synchronously, and the front harvesting knife 7 and the rear screening knife 8 can also be lifted and lowered synchronously.

[0036] The aforementioned positioning and locking component is merely one of many design examples. Those skilled in the art can also place the positioning and locking component on the side of the frame and use a horizontal insertion positioning method to achieve the same positioning effect. This positioning structure is a common method in existing technology and will not be described in detail here.

[0037] Furthermore, the present invention also provides an arc-shaped guide groove 15 on the frame 1, through which the front fixed shaft 32 passes. During vertical lifting, the guide groove 25 is used to guide and position the front fixed shaft 32, thereby constraining the lifting and lowering trajectories of the front harvesting blade 7 and the rear screening blade 8 to be stable and synchronous.

[0038] Example 3:

[0039] A harvester includes a frame 1 and a control unit 13 at the rear of the frame 1. The frame 1 is equipped with a motor 11 and a walking module. In this embodiment, the motor 11 is a gasoline engine. The walking module is a track assembly 2 located at the bottom of the frame 1. A deflector 21 is provided at the front end of the track assembly 2 for diverting the stems and leaves of root crops. A speed-changing drive module 12 is provided on the motor 11. Both ends of the eccentric drive shaft 121 on the speed-changing drive module 12 are connected to a drive linkage 122. The speed-changing drive module 12 is also connected to the track assembly 2 for driving. A double-blade harvesting module for root crops is movably connected to the drive linkage 122. An extension frame 17 is provided at the rear end of the frame 1. The extension frame 17 is equipped with height-adjusting wheels 6, which are mounted on an adjustment frame 61. The adjustment frame 61 is connected to the extension frame 17 to adjust the vertical locking height.

[0040] In summary, this utility model has a simple and novel structure. By setting the above-mentioned double-blade harvesting module for root and tuber crops on the frame 1, and with the cooperation of the motor 11 and the track assembly 2, when harvesting root and tuber crops, the front harvesting blade 7 first shovels the root and tuber crops, and then the rear screening blade 8's screening grid 82 performs shaking screening, thereby separating the soil from the root and tuber crops through this shaking screening action.

[0041] This invention overcomes the shortcomings of the prior art, and realizes soil separation after harvesting root and tuber crops. It is an ideal double-blade harvesting module and harvester for root and tuber crops.

Claims

1. A double-blade harvesting module for root and tuber crops, characterized in that: It includes a drive linkage, a fixed shaft, and a front harvesting blade and a rear screening blade; the front harvesting blade and the rear screening blade are fixed by the fixed shaft; the drive linkage is directly or indirectly connected to the front harvesting blade and the rear screening blade. The front harvester blade is equipped with a harvester handle and a blade shovel; The rear screening blade includes a screening handle and a screening grid. The screening handle is used for hinged fixing and driving, and the screening grid is used to separate the soil from the root crops.

2. The root and stem crop double-blade harvesting module as described in claim 1, characterized in that: The handle of the front harvester is curved and is covered with a protective sleeve.

3. The double-blade harvesting module for root and tuber crops as described in claim 1, characterized in that: The fixed shafts are at least two, including a front fixed shaft and a rear fixed shaft. A front blade swing seat is provided on the front fixed shaft. The front blade swing seat is movably connected to the drive linkage. A front harvesting blade is movably fixed on the front blade swing seat. A rear screening blade is movably fixed on the rear fixed shaft. The rear screening blade is directly or indirectly movably connected to the front blade swing seat, or directly connected to the drive linkage.

4. The root and stem crop double-blade harvesting module as described in claim 1, characterized in that: The external frame is equipped with a lifting and fixing shaft, and a linkage plate is movably fixed on the lifting and fixing shaft. The linkage plate is connected to the front fixing shaft and the rear fixing shaft respectively. A lifting handle is fixed on the front fixing shaft or the rear fixing shaft, and a positioning and locking component is also provided between the lifting handle and the frame.

5. A double-blade harvesting module for root and tuber crops as described in claim 4, characterized in that: The frame is provided with a guide groove, and the front fixed shaft passes through the guide groove, so that the guide groove can be used for guidance and positioning during vertical lifting.

6. A double-blade harvesting module for root and tuber crops as described in claim 1, characterized in that: A secondary scraper is fixed on the handle of the rear screening knife. The screening grid is composed of several rods, which are mounted on the secondary scraper and have their rear ends bent downwards.

7. A harvester, characterized in that: It includes a frame and a control unit at the rear of the frame. The frame is equipped with a motor and a walking module. The motor is equipped with a speed-changing drive module that is connected to the walking module and the drive linkage respectively. The drive linkage is movably connected to the root and stem crop double-blade harvesting module as described in any one of claims 1 to 6.

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