Crop harvester and harvesting method

Abstract

The invention discloses a crop harvester and a harvesting method, and relates to the technical field of agricultural mechanical equipment. The crop harvester comprises a rack, a ditching mechanism, a clamping and conveying mechanism, a soil cleaning mechanism and a walking mechanism; the ditching mechanism can conduct ditching operation on the two sides of the root of a to-be-harvested target object and can adjust the digging depth. The clamping and conveying mechanism is positioned behind the ditching mechanism; the walking mechanism can drive the crop harvester to move, so that the clamping and conveying mechanism can pull out a target object from soil and convey the target object to a target position; the soil cleaning mechanism is located below the clamping and conveying mechanism, and when the clamping and conveying mechanism conveys the target object, the soil cleaning mechanism can clean soil on the target object. The depth-adjustable ditching mechanism is adopted to conduct ditching operation on the two sides of the roots of the green Chinese onions to be harvested, the green Chinese onions can be taken away from soil through the clamping and conveying mechanism and the soil cleaning mechanism, and therefore the green Chinese onion harvesting efficiency is improved, and meanwhile the green Chinese onion damage rate can be reduced.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery and equipment technology, and more specifically, to a crop harvester and harvesting method. Background Technology

[0002] Scallions are an important economic crop, and their harvesting process has long relied on manual labor, which is labor-intensive and inefficient. To address this issue, some scallion harvesting machines have emerged, but these require significant manpower, have low operational efficiency, and result in a high rate of scallion damage.

[0003] Therefore, how to improve the harvesting efficiency of scallions while reducing the damage rate has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a crop harvester that can improve the harvesting efficiency of scallions while reducing the rate of scallion damage.

[0005] Another objective of this application is to provide a harvesting method using the aforementioned crop harvester.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A crop harvester includes a frame, a ditching mechanism, a clamping and conveying mechanism, a soil-cleaning mechanism, and a traveling mechanism, wherein:

[0008] The trenching mechanism is installed at the end of the frame. The trenching mechanism is used to trench both sides of the root of the target object to be harvested and the digging depth can be adjusted.

[0009] The clamping and conveying mechanism is mounted on the frame and is located behind the trenching mechanism;

[0010] The walking mechanism is connected to the frame and is used to drive the crop harvester to move. When the walking mechanism drives the crop harvester to move, the clamping and conveying mechanism can pull the target object out of the soil and convey it to the target location.

[0011] The soil removal mechanism is installed on the frame and is located below the clamping and conveying mechanism. When the clamping and conveying mechanism conveys the target object, the soil removal mechanism can remove the soil from the target object.

[0012] Optionally, in the above-mentioned crop harvester, the ditching mechanism includes a rotating component, blades, and a depth adjustment component. There are two rotating components, and there is a clearance space between the two rotating components for avoiding the target object. Each rotating component is detachably equipped with multiple blades. The rotating component is used to drive the blades to rotate. The depth adjustment component is adapted to the rotating component and is used to adjust the penetration depth of the blades into the soil.

[0013] Optionally, in the above-mentioned crop harvester, the depth adjustment component includes a depth adjustment drive and a push-pull component. One end of the push-pull component is used to connect to the end of the rotating component near the clamping and conveying mechanism, and the other end of the push-pull component is used to connect to the end of the rotating component away from the clamping and conveying mechanism. The depth adjustment drive is used to drive the push-pull component to rotate, so as to adjust the angle between the rotating component and the horizontal plane.

[0014] Optionally, in the above-mentioned crop harvester, the rotating assembly includes a chain, a drive wheel, a driven wheel, and a chain drive component. The chain is respectively wound around the drive wheel and the driven wheel, and the chain drive component is used to drive the drive wheel to rotate. The blade is mounted on the chain.

[0015] Optionally, in the above-mentioned crop harvester, the clamping and conveying mechanism includes a conveying component, an auxiliary clamping component, and a flexible clamping component. The flexible clamping component is disposed at one end of the conveying component near the ditching mechanism. The flexible clamping component is used to guide the target object onto the conveying component when the traveling mechanism drives the crop harvester to move. The auxiliary clamping component is disposed on both sides of the conveying component. The auxiliary clamping component is used to clamp the target object on the conveying component.

[0016] Optionally, in the above-mentioned crop harvester, the conveying assembly includes two conveying components arranged in parallel, with a conveying space between the two conveying components for accommodating the target object. Each conveying component includes a conveyor belt, a driving conveyor wheel, a driven conveyor wheel, and a conveying drive. The conveyor belt is respectively wound around the driving conveyor wheel and the driven conveyor wheel, and the conveying drive is used to drive the driving conveyor wheel to rotate.

[0017] Optionally, in the above-mentioned crop harvester, the conveying component has a first end and a second end that are arranged opposite to each other. The first end of the conveying component is located close to the ditching mechanism, and the second end of the conveying component is higher than the first end of the conveying component, so that the conveying component can carry the target object out of the soil when transporting the target object.

[0018] Optionally, in the above-mentioned crop harvester, the auxiliary clamping assembly includes multiple sets of clamping members arranged at intervals. Each set of clamping members includes two grippers for clamping the target object. Each gripper includes a fixed arm and a clamping arm. The fixed arm is connected to the frame, and the clamping arm is hinged to the fixed arm. An elastic element is connected between the clamping arm and the fixed arm so that the clamping arm can clamp the target object.

[0019] Optionally, in the above-mentioned crop harvester, the flexible clamping assembly includes two flexible clamps made of elastic material, and the ends of the two flexible clamps near the ditching mechanism are bent in opposite directions to form a guide opening for guiding the target object.

[0020] Optionally, in the above-mentioned crop harvester, the soil cleaning mechanism includes two brush assemblies, and there is a cleaning space between the two brush assemblies for accommodating the target object, so that the two brush assemblies can clean the soil on the target object.

[0021] Optionally, in the above-mentioned crop harvester, the walking mechanism includes a drive wheel set, a support wheel, a drive bracket, and a walking drive component. The support wheel is mounted on the frame, the drive wheel set is mounted on the end of the frame away from the ditching mechanism via the drive bracket, and the walking drive component is located on the drive bracket and is used to drive the drive wheel set to rotate.

[0022] The drive wheel assembly consists of two parts, each including a drive wheel, a walking wheel assembly, a guide wheel, and a track. The track is respectively wound around the drive wheel, the walking wheel assembly, and the guide wheel. The walking drive component is used to drive the drive wheels of the two drive wheel assemblies to rotate, so that the walking wheel assembly can drive the crop harvester to move.

[0023] A harvesting method, employing a crop harvester as described in any of the preceding claims, includes the steps of:

[0024] Adjust the digging depth; adjust the digging depth of the trenching mechanism.

[0025] The trenching operation involves driving the trenching mechanism to open trenches on both sides of the roots of the target object to be harvested, in order to loosen the soil on both sides of the roots of the target object to be harvested.

[0026] The target object is harvested by moving the crop harvester through the walking mechanism, so that the clamping and conveying mechanism can bring the target object out of the soil and transport it to the target location. When the clamping and conveying mechanism transports the target object, the soil removal mechanism can remove the soil from the target object.

[0027] The crop harvester provided in this application can perform trenching operations on both sides of the roots of the target crop through a trenching mechanism installed at the end of the frame, thereby loosening the soil on both sides of the roots of the target crop. The trenching depth can be adjusted according to the different heights of the target crop, allowing the crop harvester to be used in different scenarios and ensuring the complete harvesting of the target crop. Simultaneously, the crop harvester can be moved by a walking mechanism, enabling the clamping and conveying mechanism to pull the target crop out of the soil and transport it to the target location. While the clamping and conveying mechanism is transporting the target crop, a soil-removing mechanism can remove the soil from the target crop, thus removing the target crop from the soil without damaging it and reducing labor costs. As can be seen from the above examples, the crop harvester provided in this application, by employing a continuously operating ditching mechanism to ditch both sides of the roots of the scallions to be harvested, can significantly improve the efficiency of scallion harvesting. Simultaneously, it reduces the risk of damage to the scallions when the clamping and conveying mechanism pulls them out of the soil. By using both the clamping and conveying mechanism and the soil-cleaning mechanism, the scallions can be removed from the soil without damaging them, thus reducing labor costs. Furthermore, the depth-adjustable ditching mechanism allows the crop harvester to flexibly adjust operating parameters according to the actual growth depth of the scallions and soil conditions, improving the adaptability of the crop harvester.

[0028] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0030] Figure 1 A front view of a crop harvester provided in an embodiment of this application;

[0031] Figure 2 A top view of a crop harvester provided in an embodiment of this application;

[0032] Figure 3 This is a schematic flowchart of the harvesting method provided in an embodiment of this application.

[0033] Among them, 100 is a crop harvester, 10 is a frame, 20 is a ditching mechanism, 21 is a rotating assembly, 211 is a chain, 212 is a drive wheel, 213 is a driven wheel, 214 is a chain drive component, 22 is a blade, 23 is a depth adjustment assembly, 231 is a depth adjustment drive component, 2311 is a telescopic rod, 232 is a push-pull component, 2321 is a chute, 24 is a clearance space, 30 is a clamping and conveying mechanism, 31 is a conveying assembly, 311 is a conveying component, 3111 is a conveyor belt, 3112 is a drive conveyor wheel, 3113 is a driven conveyor wheel, and 3114 is a driven conveyor wheel. 312 is the conveying space, 32 is the auxiliary clamping assembly, 321 is the clamping component, 3211 is the gripper, 3211a is the fixed arm, 3211b is the clamping arm, 33 is the flexible clamping assembly, 331 is the flexible clamping component, 332 is the guide port, 40 is the soil cleaning mechanism, 41 is the brush assembly, 411 is the brush, 412 is the brush shaft, 50 is the walking mechanism, 51 is the drive wheel set, 511 is the drive wheel, 512 is the walking wheel set, 513 is the guide wheel, 514 is the track, 52 is the support wheel, 53 is the drive bracket, and 54 is the walking drive component. Detailed Implementation

[0034] The core of this application is to provide a crop harvester that can improve the harvesting efficiency of scallions while reducing the rate of scallion damage.

[0035] Another core aspect of this application is to provide a harvesting method using the aforementioned crop harvester.

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] Scallions are an important economic crop, and their harvesting process has long relied on manual labor, which is labor-intensive and inefficient. To address this issue, some scallion harvesting machines have emerged, but these require significant manpower, have low operational efficiency, and result in a high rate of scallion damage.

[0038] Therefore, such as Figure 1As shown in the illustration, this application discloses a crop harvester 100, including a frame 10, a ditching mechanism 20, a clamping and conveying mechanism 30, a soil-cleaning mechanism 40, and a walking mechanism 50. By employing the continuously operating ditching mechanism 20 to ditch both sides of the roots of the scallions to be harvested, the harvesting efficiency of scallions can be significantly improved. Simultaneously, the risk of damage to the scallions when the clamping and conveying mechanism 30 pulls them out of the soil can be reduced. The clamping and conveying mechanism 30 and the soil-cleaning mechanism 40 can remove the scallions from the soil without damaging them, reducing labor costs. Furthermore, the depth-adjustable ditching mechanism 20 allows the crop harvester 100 to flexibly adjust operating parameters according to the actual growth depth of the scallions and soil conditions, improving the adaptability of the crop harvester 100.

[0039] The following will combine Figure 1 and Figure 2 The crop harvester 100 disclosed in the embodiments of this application will be explained and described in detail.

[0040] Among them, such as Figure 1 As shown, the frame 10, serving as the load-bearing foundation of the entire machine, can be welded from high-strength steel to ensure sufficient structural strength and rigidity, thereby withstanding various loads and vibrations during operation. Simultaneously, the walking mechanism 50 can be located at the bottom of the frame 10, allowing the crop harvester 100 to move freely in the field. Furthermore, the frame 10 is sequentially equipped with a ditching mechanism 20, a clamping and conveying mechanism 30, and a soil-cleaning mechanism 40. This series arrangement allows the harvested scallions to undergo three stages—loosening the soil, pulling out the scallions, and cleaning the soil—achieving continuous, streamlined operations. The ditching mechanism 20, located at the front of the frame 10, can dig trenches on both sides of the harvested scallions to cut off some roots and fully loosen the soil around the roots, reducing resistance and damage to the scallions during the subsequent pulling process. In addition, the ditching mechanism 20 can be adjusted in depth to accommodate scallions of different heights, allowing the crop harvester 100 to be used in various scenarios and ensuring the complete harvesting of the scallions. The clamping and conveying mechanism 30 is located behind the ditching mechanism 20. When the traveling mechanism 50 drives the crop harvester 100 to move, the clamping and conveying mechanism 30, under the forward thrust of the crop harvester 100, can pull the target object out of the soil and transport it to the target location. Simultaneously, the soil-cleaning mechanism 40 can be located below the clamping and conveying mechanism 30. When the clamping and conveying mechanism 30 transports the target object, the soil-cleaning mechanism 40 can remove the soil adhering to the target object. It should be noted that in this application, the target object can be a scallion, but it can also be other crops, such as lettuce. Unless otherwise specified, the target object in the following text refers to scallions.

[0041] In some embodiments, such as Figure 1 and Figure 2 As shown, the trenching mechanism 20 may include a rotating assembly 21, a blade 22, and a depth adjustment assembly 23. Two rotating assemblies 21 may be arranged in parallel, with a clearance space 24 between them to avoid damaging the target object when the trenching mechanism 20 trenches on both sides of the target object. Figure 2 As shown, each rotating component 21 is equipped with multiple blades 22 spaced apart, allowing the rotating component 21 to drive the blades 22 to rotate. This allows the blades 22 to cut off portions of the root system on both sides of the target crop while simultaneously loosening the soil around the roots, reducing resistance during the subsequent pulling process and minimizing damage to the target crop. Each blade 22 is detachably mounted to the rotating component 21 using bolts or other fasteners for easy replacement of worn blades 22. A depth adjustment component 23 is adapted to the rotating component 21, meaning one depth adjustment component 23 is provided for each rotating component 21. This allows for independent adjustment of the penetration depth of the blades 22 on the two rotating components 21 to suit crops grown in different terrains.

[0042] In some embodiments, such as Figure 1 and Figure 2 As shown, the rotating assembly 21 may include a chain 211, a drive wheel 212, a driven wheel 213, and a chain drive component 214. The chain 211 can be wound around the drive wheel 212 and the driven wheel 213 respectively, and the blade 22 can be mounted on the chain 211. A certain gap exists between the drive wheel 212 and the driven wheel 213 to increase the trenching area of ​​the trenching mechanism 20 and improve its trenching efficiency. Simultaneously, the chain drive component 214 can be a drive motor, and the output shaft of the drive motor can be connected to the drive wheel 212. This allows the chain drive component 214 to drive the drive wheel 212 to rotate, which in turn drives the blade 22 on the chain 211 to rotate. This achieves the cutting of some roots on both sides of the target object while simultaneously loosening the soil around the roots, reducing resistance for subsequent pulling processes and minimizing damage to the target object during the pulling process.

[0043] In some embodiments, each blade 22 may be inclinedly arranged on the chain 211 to improve the convenience of ditching operation of the ditching mechanism 20 and ensure that the soil around the roots on both sides of the target object to be harvested can be fully loosened. Each blade 22 may be inclinedly arranged in parallel on the chain 211, or it may be inclinedly arranged alternately on the chain 211, i.e., the extension lines of two adjacent blades 22 intersect. Of course, the blades 22 may also adopt a herringbone structure, or two blades 22 may be distributed in a herringbone shape.

[0044] In some embodiments, such as Figure 1 and Figure 2As shown, the depth adjustment assembly 23 may include a depth adjustment drive 231 and a push-pull component 232. One end of the push-pull component 232 is hinged to the end of the rotating assembly 21 near the clamping and conveying mechanism 30, and the other end is hinged to the end of the rotating assembly 21 away from the clamping and conveying mechanism 30. Simultaneously, the depth adjustment drive 231 can drive the push-pull component 232 to rotate, thereby adjusting the angle between the rotating assembly 21 and the horizontal plane, thus adjusting the soil penetration depth of the blade 22.

[0045] In some embodiments, such as Figure 1 As shown, the depth adjustment drive component 231 may include a telescopic rod 2311, and a sliding groove 2321 is provided on the push-pull component 232. The sliding groove 2321 is vertically disposed on the push-pull component 232, and the end of the telescopic rod 2311 may be connected to a slide block that can slide within the sliding groove 2321. When the telescopic rod 2311 extends, the slide block at the end of the telescopic rod 2311 can slide within the sliding groove 2321, while simultaneously pushing the end of the rotating component 21 connected to the push-pull component 232 away from the clamping and conveying mechanism 30 to rotate downward, thereby increasing the penetration depth of the blade 22. When the telescopic rod 2311 retracts, the slide block at the end of the telescopic rod 2311 can slide within the sliding groove 2321, while simultaneously pulling the end of the rotating component 21 connected to the push-pull component 232 away from the clamping and conveying mechanism 30 to rotate upward, thereby decreasing the penetration depth of the blade 22. It should be noted that the telescopic rod 2311 is an electric telescopic rod. Of course, the telescopic rod 2311 can also be extended or retracted by a cylinder or a hydraulic cylinder.

[0046] In some embodiments, such as Figure 2 As shown, the clamping and conveying mechanism 30 may include a conveying component 31, an auxiliary clamping component 32, and a flexible clamping component 33. The flexible clamping component 33 may be disposed at one end of the conveying component 31 near the ditching mechanism 20. When the traveling mechanism 50 drives the crop harvester 100 to move, the flexible clamping component 33 can guide the target object onto the conveying component 31 and transport the target object to the target location via the conveying component 31. Simultaneously, the auxiliary clamping component 32 may be disposed on both sides of the conveying component 31 to clamp the target object on the conveying component 31, thereby preventing the risk of the target object falling off during transport by the conveying component 31.

[0047] In some embodiments, such as Figure 1 As shown, the conveying assembly 31 may have a first end and a second end disposed opposite to each other. The first end of the conveying assembly 31 is positioned close to the trenching mechanism 20, and the second end of the conveying assembly 31 may be higher than the first end, so that when the conveying assembly 31 transports the target object from the first end to the second end, it can carry the target object out of the soil. Meanwhile, as... Figure 2 As shown, the second end of the conveying assembly 31 can be bent and extended outside the frame 10 to facilitate the feeding of the target material from the second end of the conveying assembly 31. It should be noted that when feeding the target material, the target material fed from the second end of the conveying assembly 31 can be collected by a harvesting device that moves in parallel with the crop harvester 100.

[0048] In some embodiments, such as Figure 2 As shown, the conveying assembly 31 may include two conveying members 311 arranged in parallel. There is a conveying space 312 between the two conveying members 311, which can accommodate the target object, so that the target object can be clamped in the conveying space 312 between the two conveying members 311, thereby transporting the target object to the target location through the two conveying members 311.

[0049] In some embodiments, such as Figure 2 As shown, the conveying component 311 may include a conveyor belt 3111, a driving conveyor wheel 3112, a driven conveyor wheel 3113, and a conveying drive component 3114. The conveyor belt 3111 may be wound around the driving conveyor wheel 3112 and the driven conveyor wheel 3113 respectively, and multiple driven conveyor wheels 3113 may be used to ensure the stability of the conveyor belt 3111. Meanwhile, the conveying drive component 3114 may be a drive motor, and the output shaft of the drive motor may be directly connected to the driving conveyor wheel 3112 or indirectly connected through a transmission mechanism, so that the conveying drive component 3114 drives the driving conveyor wheel 3112 to rotate, thereby transporting the target object to the target location by driving the conveyor belt 3111 to rotate.

[0050] In some embodiments, the outer side of the conveyor belt 3111 may be provided with an anti-slip structure that can increase friction. The anti-slip structure may be a concave-convex structure provided on the outer surface of the conveyor belt 3111, or a frosted coating applied to the outer surface of the conveyor belt 3111, so as to increase the friction between the conveyor belt 3111 and the target object and reduce the risk of the target object falling.

[0051] In some embodiments, such as Figure 2 As shown, the auxiliary clamping assembly 32 may include multiple sets of clamping members 321 spaced apart. Each set of clamping members 321 may include two grippers 3211 capable of clamping the target object, so that the target object can be clamped between the two grippers 3211, thereby ensuring that the target object is transported by the conveying assembly 31 and reducing the risk of the target object falling.

[0052] In some embodiments, such as Figure 2As shown, the gripper 3211 may include a fixed arm 3211a and a clamping arm 3211b. The fixed arm 3211a may have an L-shaped structure and may have a first connecting portion and a second connecting portion arranged perpendicularly to each other. The first connecting portion of the fixed arm 3211a may be connected to the frame 10 on one side opposite to each other of the two conveying components 311. Two clamping arms 3211b may be used, and the two ends of the two clamping arms 3211b are respectively connected by two connecting rods. One end of each clamping arm 3211b is hinged to the second connecting portion of the fixed arm 3211a, and the two clamping arms 3211b are inclined towards the second end of the conveying assembly 31 to ensure that the clamping arms 3211b have a large contact area with the target object. Furthermore, an elastic element can be connected between the clamping arm 3211b and the fixed arm 3211a, so that the elastic element can provide a clamping force to the clamping arm 3211b in the direction of the target object, thereby ensuring that the clamping arms 3211b of the two jaws 3211 can clamp the target object. It should be noted that the elastic element can be a torsion spring, etc., and the clamping arm 3211b can also be a spring sheet. One end of the clamping arm 3211b is fixedly connected to the second connecting part of the fixed arm 3211a, thereby achieving the effect of the clamping arms 3211b of the two jaws 3211 clamping the target object.

[0053] In some embodiments, such as Figure 2 As shown, the clamping arm 3211b extends from the conveyor belt 3111 of the conveyor 311, allowing the clamping arms 3211b of the two grippers 3211 to clamp the stem of the target object. When the conveyor belt 3111 rotates, the target object can be transported from the first end of the conveyor assembly 31 to the second end of the conveyor assembly 31, and the target object can be brought out of the soil. At the same time, the soil removal mechanism 40 located below the clamping and conveying mechanism 30 can sequentially remove the soil from part of the neck and roots of the target object, ensuring the cleanliness of the target object.

[0054] In some embodiments, such as Figure 2 As shown, the flexible clamping assembly 33 may include two flexible clamps 331. The flexible clamps 331 may be made of elastic material, and the two flexible clamps 331 are bent at the ends near the trenching mechanism 20 in a direction away from each other, thereby forming a guide opening 332 that can guide the target object. This allows the interlaced target object to be guided through the guide opening 332 to the space between the two flexible clamps 331, and then transported to the target location by the conveying assembly 31, preventing the target object to be harvested from being missed.

[0055] In the above embodiments, the flexible clamp 331 may be a spring, so that the flexible clamp 331 has a certain elasticity, can provide a certain clamping force for the target object, and can prevent damage to the target object.

[0056] In some embodiments, such as Figure 1 As shown, the soil cleaning mechanism 40 may include brush assembly 41, and there are two brush assemblies 41. There is a cleaning space between the two brush assemblies 41 that can accommodate the target object, so that when part of the neck and root of the target object passes through the cleaning space between the two brush assemblies 41, the brush assembly 41 can contact the target object, thereby cleaning the soil on the target object.

[0057] In some embodiments, such as Figure 1 As shown, the brush assembly 41 can be composed of a brush shaft 412 and brushes 411 disposed on the brush shaft 412. The brush shaft 412 is fixed on the frame 10 in a direction parallel to the ground. Meanwhile, the brushes 411 can be distributed along the length of the brush shaft 412 to ensure that when the target object moves upward, the brushes 411 can remove the soil on part of the neck and root of the target object.

[0058] In some embodiments, the brush 411 may be made of soft bristles to reduce damage when cleaning the target object. Of course, the brush shaft 412 may also drive the brush 411 to rotate, thereby improving the cleaning effect on the target object.

[0059] In some embodiments, such as Figure 1 As shown, the walking mechanism 50 may include a drive wheel set 51, a support wheel 52, a drive bracket 53, and a walking drive component 54. The support wheel 52 can be mounted on the frame 10, while the drive wheel set 51 is mounted on the end of the frame 10 away from the trenching mechanism 20 via the drive bracket 53 to ensure the balance of the crop harvester 100 and thus improve the stability of the crop harvester 100's movement. The walking drive component 54 can be located on the drive bracket 53 and can drive the drive wheel set 51 to rotate, thereby enabling the crop harvester 100 to move freely.

[0060] In some embodiments, such as Figure 1 As shown, two drive wheel sets 51 can be used, and each drive wheel set 51 can include a drive wheel 511, a walking wheel set 512, a guide wheel 513, and a track 514. The track 514 is respectively wound around the drive wheel 511, the walking wheel set 512, and the guide wheel 513, and the walking drive component 54 can simultaneously drive the drive wheels 511 of both drive wheel sets 51 to rotate, so that the walking wheel set 512 can drive the crop harvester 100 to move.

[0061] In some embodiments, such as Figure 1 As shown, two walking wheel sets 512 can be used, and the drive wheel 511 can be connected to the two walking wheel sets 512 through a triangular connecting frame. At the same time, the guide wheel 513 can be connected to the triangular connecting frame, so that the track 514 can be wrapped around the drive wheel 511, the walking wheel set 512 and the guide wheel 513 respectively.

[0062] It should be noted that in the above embodiments, the walking drive component 54 can be a diesel engine or other drive component to provide greater power to the crop harvester 100.

[0063] The crop harvester 100 disclosed in this application can perform trenching operations on both sides of the roots of the target crop through a trenching mechanism 20 installed at the end of the frame 10, thereby loosening the soil on both sides of the roots of the target crop. Simultaneously, the digging depth of the trenching mechanism 20 can be adjusted according to the different heights of the target crop, allowing the crop harvester 100 to be used in different scenarios and ensuring the complete harvesting of the target crop. At the same time, the crop harvester 100 can be moved by a walking mechanism 50, enabling the clamping and conveying mechanism 30 to pull the target crop out of the soil and transport it to the target location. While the clamping and conveying mechanism 30 is transporting the target crop, the soil-removing mechanism 40 can remove the soil from the target crop, thereby removing the target crop from the soil without damaging it, reducing labor costs.

[0064] The crop harvester 100 disclosed in this application significantly improves harvesting efficiency by employing a continuously operating ditching mechanism 20 to ditch both sides of the roots of the scallions to be harvested. Simultaneously, it reduces the risk of damage to the scallions when the clamping and conveying mechanism 30 pulls them out of the soil. The use of the clamping and conveying mechanism 30 and the soil-cleaning mechanism 40 removes the scallions from the soil without damaging them, thus reducing labor costs. Furthermore, the depth-adjustable ditching mechanism 20 allows the crop harvester 100 to flexibly adjust operating parameters according to the actual growth depth of the scallions and soil conditions, improving its adaptability.

[0065] like Figure 3 As shown in the figure, this application also discloses a harvesting method using the crop harvester 100 disclosed in the above embodiments. Therefore, it possesses all the technical effects of the crop harvester 100 described above, and will not be repeated here. The harvesting method may include step S100 adjusting the digging depth, step S200 trenching operation, and step S300 harvesting the target object.

[0066] Step S100: Adjust the excavation depth;

[0067] The digging depth of the trenching mechanism 20 is adjusted to a suitable position according to the height of the target object. Specifically, the digging depth of the blade 22 on the rotating assembly 21 can be adjusted by extending or retracting the telescopic rod 2311 of the depth adjustment drive 231 to drive the end of the rotating assembly 21 to rotate downward or upward.

[0068] Step S200: Trenching operation;

[0069] The ditching mechanism 20 is driven to ditch on both sides of the roots of the target crop to loosen the soil. Specifically, the walking mechanism 50 drives the crop harvester 100 to move, while the rotating component 21 drives the blades 22 to rotate, thereby loosening the soil on both sides of the roots of the target crop.

[0070] Step S300: Harvest the target object;

[0071] The walking mechanism 50 drives the crop harvester 100 to move, enabling the clamping and conveying mechanism 30 to carry the target object out of the soil and transport it to the target location. While the clamping and conveying mechanism 30 is transporting the target object, the soil-removing mechanism 40 removes the soil from the target object. Specifically, when the walking mechanism 50 drives the crop harvester 100, the target object can be guided by the flexible clamping component 33 of the clamping and conveying mechanism 30 to the first end of the conveying component 31, and then transported by the conveying component 31 from the first end to the second end of the conveying component 31. During transport, the target object can be clamped by the auxiliary clamping component 32 to prevent it from falling. Furthermore, when the clamping and conveying mechanism 30 is transporting the target object, part of the stem and root of the target object can pass between the two brush components 41 of the soil-removing mechanism 40, allowing the brushes 411 of the brush components 41 to remove the soil from the stem and root of the target object.

[0072] The terminology used in the above embodiments is for the purpose of describing specific embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions "a," "an," "the," "the," "the," and "this" are intended to also include expressions such as "one or more," unless the context clearly indicates otherwise. It should also be understood that in the embodiments of this application, "one or more" refers to one, two, or more; "and / or" describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0073] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0074] The "multiple" mentioned in the embodiments of this application refers to two or more. It should be noted that in the description of the embodiments of this application, terms such as "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0075] The terms "parallel" and "perpendicular" used in this application refer to "basically parallel" and "basically perpendicular" in practical operation. "Basically parallel" can be understood as parallelism with a certain degree of error, and similarly, "basically perpendicular" can be understood as perpendicularity with a certain degree of error.

[0076] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crop harvester, characterized in that, It includes a frame (10), a trenching mechanism (20), a clamping and conveying mechanism (30), a soil clearing mechanism (40), and a traveling mechanism (50), wherein: The trenching mechanism (20) is installed at the end of the frame (10). The trenching mechanism (20) is used to trench the roots of the target object to be harvested and the trenching depth can be adjusted. The clamping and conveying mechanism (30) is mounted on the frame (10), and the clamping and conveying mechanism (30) is located behind the trenching mechanism (20); The walking mechanism (50) is connected to the frame (10), and the walking mechanism (50) is used to drive the crop harvester (100) to move. When the walking mechanism (50) drives the crop harvester (100) to move, the clamping and conveying mechanism (30) can pull the target object out of the soil and convey it to the target location. The soil removal mechanism (40) is installed on the frame (10) and is located below the clamping and conveying mechanism (30). When the clamping and conveying mechanism (30) conveys the target object, the soil removal mechanism (40) can remove the soil from the target object.

2. The crop harvester according to claim 1, characterized in that, The trenching mechanism (20) includes a rotating assembly (21), a blade (22), and a depth adjustment assembly (23). There are two rotating assemblies (21), and there is a clearance space (24) between the two rotating assemblies (21) for avoiding the target object. Each rotating assembly (21) is detachably provided with multiple blades (22). The rotating assembly (21) is used to drive the blades (22) to rotate. The depth adjustment assembly (23) is adapted to the rotating assembly (21) and is used to adjust the penetration depth of the blades (22).

3. The crop harvester according to claim 2, characterized in that, The depth adjustment component (23) includes a depth adjustment drive (231) and a push-pull component (232). One end of the push-pull component (232) is used to connect to the end of the rotating component (21) near the clamping and conveying mechanism (30), and the other end of the push-pull component (232) is used to connect to the end of the rotating component (21) away from the clamping and conveying mechanism (30). The depth adjustment drive (231) is used to drive the push-pull component (232) to rotate, so as to adjust the angle between the rotating component (21) and the horizontal plane.

4. The crop harvester according to claim 2, characterized in that, The rotating assembly (21) includes a chain (211), a drive wheel (212), a driven wheel (213), and a chain drive (214). The chain (211) is wound around the drive wheel (212) and the driven wheel (213), and the chain drive (214) is used to drive the drive wheel (212) to rotate. The blade (22) is mounted on the chain (211).

5. The crop harvester according to claim 1, characterized in that, The clamping and conveying mechanism (30) includes a conveying component (31), an auxiliary clamping component (32), and a flexible clamping component (33). The flexible clamping component (33) is disposed at one end of the conveying component (31) near the ditching mechanism (20). The flexible clamping component (33) is used to guide the target object onto the conveying component (31) when the walking mechanism (50) drives the crop harvester (100) to move. The auxiliary clamping component (32) is disposed on both sides of the conveying component (31). The auxiliary clamping component (32) is used to clamp the target object on the conveying component (31).

6. The crop harvester according to claim 5, characterized in that, The conveying assembly (31) includes two conveying members (311) arranged in parallel, with a conveying space (312) between the two conveying members (311) for accommodating the target object. The conveying member (311) includes a conveyor belt (3111), an active conveying wheel (3112), a driven conveying wheel (3113), and a conveying drive (3114). The conveyor belt (3111) is respectively wrapped around the active conveying wheel (3112) and the driven conveying wheel (3113). The conveying drive (3114) is used to drive the active conveying wheel (3112) to rotate.

7. The crop harvester according to claim 5, characterized in that, The conveying assembly (31) has a first end and a second end that are arranged opposite to each other. The first end of the conveying assembly (31) is located close to the trenching mechanism (20), and the second end of the conveying assembly (31) is higher than the first end of the conveying assembly (31), so that the conveying assembly (31) can carry the target object out of the soil when transporting the target object.

8. The crop harvester according to claim 5, characterized in that, The auxiliary clamping assembly (32) includes multiple sets of clamping members (321) spaced apart. Each set of clamping members (321) includes two grippers (3211) for clamping the target object. Each gripper (3211) includes a fixed arm (3211a) and a clamping arm (3211b). The fixed arm (3211a) is connected to the frame (10). The clamping arm (3211b) is hinged to the fixed arm (3211a), and an elastic element is connected between the clamping arm (3211b) and the fixed arm (3211a) so that the clamping arm (3211b) can clamp the target object.

9. The crop harvester according to claim 5, characterized in that, The flexible clamping assembly (33) includes two flexible clamps (331), which are made of elastic material, and the two flexible clamps (331) are bent at one end near the trenching mechanism (20) in a direction away from each other to form a guide opening (332) for guiding the target object.

10. The crop harvester according to claim 1, characterized in that, The soil cleaning mechanism (40) includes two brush assemblies (41) with a cleaning space between them for accommodating the target object, so that the two brush assemblies (41) can clean the soil on the target object.

11. The crop harvester according to any one of claims 1 to 10, characterized in that, The walking mechanism (50) includes a drive wheel set (51), a support wheel (52), a drive bracket (53), and a walking drive component (54). The support wheel (52) is mounted on the frame (10). The drive wheel set (51) is mounted on the end of the frame (10) away from the trenching mechanism (20) via the drive bracket (53). The walking drive component (54) is located on the drive bracket (53) and is used to drive the drive wheel set (51) to rotate. There are two drive wheel sets (51), and each drive wheel set (51) includes a drive wheel (511), a walking wheel set (512), a guide wheel (513), and a track (514). The track (514) is respectively wrapped around the drive wheel (511), the walking wheel set (512), and the guide wheel (513). The walking drive component (54) is used to drive the drive wheels (511) of the two drive wheel sets (51) to rotate, so that the walking wheel set (512) can drive the crop harvester (100) to move.

12. A harvesting method, characterized in that, The method of using the crop harvester (100) as described in any one of claims 1 to 11 includes the following steps: Adjust the digging depth to adjust the digging depth of the trenching mechanism (20); The trenching operation involves driving the trenching mechanism (20) to perform trenching operations on both sides of the roots of the target object to be harvested, so as to loosen the soil on both sides of the roots of the target object to be harvested. The target object is harvested by moving the crop harvester (100) through the walking mechanism (50) so that the clamping and conveying mechanism (30) can bring the target object out of the soil and transport it to the target location. When the clamping and conveying mechanism (30) transports the target object, the soil clearing mechanism (40) can remove the soil on the target object.

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