Underground crop harvester capable of separating and discharging soil

The underground crop harvester effectively separates and discharges soil away from the crop path using a dedicated system, enhancing harvesting efficiency and preventing soil re-contamination.

KR102997199B1Active Publication Date: 2026-07-29KYUNGPOOK NAT UNIV IND ACADEMIC COOP FOUND
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Patent Information

Authority / Receiving Office
KR · KR
Patent Type
Patents
Current Assignee / Owner
KYUNGPOOK NAT UNIV IND ACADEMIC COOP FOUND
Filing Date
2024-03-26
Publication Date
2026-07-29

AI Technical Summary

Technical Problem

Conventional crop harvesting methods for underground crops result in soil scattering, making it difficult to collect crops and leading to re-contamination due to soil discharge in all directions.

Method used

An underground crop harvester with a soil separation and discharge system, comprising a frame, digging plate, crop transport unit, power unit, and soil discharge unit, which separates soil from crops and directs it away from the crop path using a soil discharge port and actuator mechanism.

Benefits of technology

Facilitates efficient crop harvesting by separating and quickly discharging soil to the outside of the crop excavation path, preventing soil from contaminating the crops.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides an underground crop harvester capable of separating and discharging soil, characterized by comprising: a frame including a side plate formed symmetrically on both sides and including a soil discharge port at the bottom, a bottom plate connected at the bottom of the side plate, and a fixing bar connecting the side plates; a digging plate formed to be inclined downward in front of the side plate; a crop transport unit that transports crops dug from the digging plate to the rear, wherein a plurality of bars formed spaced apart at a certain interval are connected in a conveyor format; a power unit that transmits power to the crop transport unit; and a soil discharge unit formed on the bottom plate, which separates from the crops transported along the crop transport unit and pushes the soil falling on the bottom plate between the plurality of bars to be discharged through the soil discharge port.
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Description

Technology Field

[0001] The present invention relates to an underground crop harvester capable of separating and discharging soil, and more specifically, to an underground crop harvester capable of separating and discharging soil that separates soil excavated together with the crop during harvesting and discharges the soil to the outside of the path where the crop falls, thereby making crop harvesting convenient. Background Technology

[0002] Generally, root crops refer to crops such as onions, garlic, peanuts, radishes, potatoes, and sweet potatoes whose roots grow underground in cultivated fields and are consumed as food. These underground root crops are excavated by digging equipment that receives driving force from agricultural vehicles, such as tractors.

[0003] Conventionally, crops harvested from such digging equipment travel on a conveyor, and soil is scattered or discharged in all directions regardless of the path the crops are dug up. Consequently, when collecting crops that have fallen onto the ground after digging, it is difficult to collect them due to the soil, and there are problems such as the crops being re-contaminated by the discharged soil. Prior art literature

[0004] Korean Registered Patent No. 10-2029092 The problem to be solved

[0005] The present invention aims to solve the above-mentioned problems and has one objective of facilitating crop harvesting by separating soil from excavated underground crops and discharging the separated soil to the outside of the path where the crops were excavated.

[0006] In addition, one purpose is to enable the rapid discharge of separated soil through the repeated operation of the soil discharge unit. means of solving the problem

[0007] An underground crop harvester capable of separating and discharging soil according to an embodiment of the present invention may include: a frame comprising side plates formed symmetrically on both sides and including a soil discharge port at the bottom, a bottom plate connected at the bottom of the side plates, and a fixing bar connecting the side plates; a digging plate formed to be inclined downward in front of the side plates; a crop transport unit that transports crops dug from the digging plate to the rear, wherein a plurality of bars formed spaced apart at a certain interval are connected in a conveyor format; a power unit that transmits power to the crop transport unit; and a soil discharge unit formed on the bottom plate, which separates from the crops transported along the crop transport unit and pushes the soil falling on the bottom plate between the plurality of bars to be discharged through the soil discharge port.

[0008] Additionally, the soil discharge section may include a support member formed in the center of the lower plate; a soil cover plate connected to the support member; a soil removal member formed vertically downward at the front end of the soil cover plate; and an actuator formed between the support member and the soil removal member and operated to push the soil removal member outward.

[0009] In addition, the support member may be formed with its upper end sloping from the center toward both sides, and the soil removal member may be formed with a height lower than that of the support member.

[0010] In addition, the lower plate may have partitions formed at the front and rear of the lower plate.

[0011] Additionally, the power unit may include a power extraction device provided at the top of the fixed bar and receiving power; a power transmission shaft connected to the power extraction device and a power transmission unit formed by penetrating the side plate and connected to the power transmission shaft and the crop transport unit to operate the crop transport unit.

[0012] Additionally, the support member further includes a roller member embedded in the support member and formed to allow the soil cover plate to be wound, and the soil cover plate includes a plate member having protrusions formed on both sides at one end and a connection formed at the other end, and the plate member is formed by connecting a plurality of plate members, wherein the protrusions and connection of adjacent plate members can be hinge-connected. Effects of the invention

[0013] The present invention has the advantage of facilitating crop harvesting by separating soil from excavated underground crops and discharging the separated soil to the outside of the path where the crops were excavated.

[0014] In addition, there is an advantage in that the separated soil can be quickly discharged due to the repeated operation of the soil discharge unit. Brief explanation of the drawing

[0015] FIG. 1 is a perspective view of an underground crop harvester capable of separating and discharging soil according to an embodiment of the present invention. Fig. 2 is a rear perspective view of Fig. 1. Figure 3 is an example of operation of the actuator of the soil discharge part of Figure 1 in a reduced state. Figure 4 is an example of operation of the actuator of the soil discharge section of Figure 1 in an extended state. FIG. 5 is an example of the operation of the roller part of the support part and the soil cover plate of an underground crop harvester capable of separating and discharging soil according to another embodiment of the present invention. Figure 6 is an example of the roller section and soil cover plate of Figure 5. Figure 7 is an example of the soil covering plate of Figure 5. Specific details for implementing the invention

[0016] The present invention is not limited to the specific embodiments described below and should be understood to include all variations, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0017] The terms used in this specification are for describing specific embodiments and are not intended to limit the invention. Singular expressions may include plural expressions unless the context clearly indicates otherwise.

[0018] Terms such as "include" or "have" imply the possibility of including additional configurations or functions beyond those described in the specification. Terms such as "first," "second," etc., are not intended to limit the components but are intended to distinguish one component from another.

[0019] Hereinafter, an embodiment of an underground crop harvester capable of separating and discharging soil according to the present invention will be described in detail with reference to the attached drawings.

[0020] Before the explanation, directions are defined. In an embodiment of the present invention, the direction in which the excavation plate (300) faces with reference to FIG. 1 can be defined as the front, and the direction in which the crop conveying unit (400) faces with reference to the excavation plate (300) can be defined as the rear. Additionally, the direction in which the present invention operates toward the soil bottom surface can be defined as the downward or bottom, and the direction away from the bottom surface can be defined as the upward or top. Furthermore, one end may be referred to as one end, and the opposite end may be referred to as the other end.

[0022] FIG. 1 is a perspective view of an underground crop harvester capable of separating and discharging soil according to an embodiment of the present invention, FIG. 2 is a rear perspective view of FIG. 1, FIG. 3 is an example of operation in which the actuator of the soil discharge unit of FIG. 1 is in a reduced state, and FIG. 4 is an example of operation in which the actuator of the soil discharge unit of FIG. 1 is in an expanded state.

[0024] Referring to FIGS. 1 and 2, an underground crop harvester capable of separating and discharging soil according to an embodiment of the present invention is connected to a tractor via a three-point hitch (200) and can receive power through a power extraction device (510). The three-point hitch is one of the methods by which a tractor is connected to tow an excavator, etc., and the power extraction device is a device for utilizing the rotational force of the tractor's engine for operating an excavator, etc., and can be applied without limitation to the technology used in the industry for towing and operating an excavator.

[0025] An underground crop harvester capable of separating and discharging soil according to an embodiment of the present invention may include a frame (100), a three-point hitch (200), an excavation plate (300), a crop conveying unit (400), a power unit (500), and a soil discharge unit (600).

[0026] The frame (100) may include a side plate (110) formed symmetrically on both sides and having a soil discharge port (111) at the bottom, a bottom plate (120) connected at the bottom of the side plate (110) and having a partition wall (121) formed at the front and rear, and a fixing bar (130) connecting the side plates (110) and having a three-point hitch (200) formed therein, and a power extraction device (510) may be provided on the top of the fixing bar (130).

[0027] An excavation plate (300) may be formed in front of the side plate (110) so as to be inclined downward. The crops excavated from the ground by the excavation plate (300) can be moved along the crop transport unit (400).

[0028] The crop transport unit (400) may have multiple bars formed at regular intervals connected in a conveyor format, and crops excavated together with soil may move along the crop transport unit (400), and the soil may be separated from the crops and fall between the multiple bars, and a vibrating member may be additionally included in the crop transport unit (400) so that the crops vibrate and are separated from the soil more effectively.

[0029] The crop transport unit (400) can be operated by a power unit (500), and the power unit (500) may include a power extraction device (510), a power transmission shaft (520) connected to the power extraction device (510), and a power transmission unit (530) formed by penetrating the side plate (110) and connected to the power transmission shaft (520) and the crop transport unit (400) to operate the crop transport unit (400).

[0030] The soil discharge section (600) is formed on the lower plate (120) and can discharge soil separated from the crop transport section (400) to the soil discharge port (111), and the partition wall (121) formed at the front and rear of the lower plate (120) can ensure that the soil of the lower plate (120) is discharged only to the soil discharge port (111) without splashing.

[0031] Referring to FIGS. 3 and 4, the soil discharge unit (600) may include a support unit (610), a soil cover plate (620), a soil removal member (630), and an actuator (640).

[0032] The support member (610) can be formed in the center of the lower plate (120).

[0033] The soil covering plate (620) can be connected to the support member (610), and a soil removal member (630) can be formed vertically downward at the tip of the soil covering plate (620).

[0034] The actuator (640) is formed between the support member (610) and the soil removal member (630) so that the soil removal member (630) can be pushed outward to discharge the soil accumulated on the lower plate (120) to the soil discharge port (111), and the actuator (640) can be operated repeatedly during crop harvesting to enable rapid discharge.

[0035] The soil cover plate (620) is formed of an elastic material and can be extended in length as the soil removal member (630) moves, but is not limited thereto and can be in a form such as being folded into a bellows shape.

[0036] Here, a soil discharge port (111) is formed in the side plate (110), so that soil is discharged outside the movement path of the underground crop harvester capable of separating and discharging soil according to the embodiment of the present invention, thereby preventing soil from splashing or falling onto the crops discharged onto the ground after passing through the crop transport unit (400) and causing re-contamination.

[0037] The soil removal member (630) is formed to be lower in height than the support member (610), and the upper part of the support member (610) is formed to be inclined from the center toward both sides, so that soil separated from the crop transport member (400) can fall from the support member (610) to the lower plate (120).

[0039] Hereinafter, a subsurface crop harvester capable of soil separation and discharge according to another embodiment of the present invention will be described in detail.

[0041] FIG. 5 is an example diagram of the operation of the roller section and soil cover plate of the support section of an underground crop harvester capable of separating and discharging soil according to another embodiment of the present invention, FIG. 6 is an example diagram of the roller section and soil cover plate of FIG. 5, and FIG. 7 is an example diagram of the soil cover plate of FIG. 5.

[0043] An underground crop harvester capable of separating and discharging soil according to another embodiment of the present invention may be substantially identical to an underground crop harvester capable of separating and discharging soil according to an embodiment of the present invention, except for the support member (610) and the soil cover plate (620), and only the support member (610) and the soil cover plate (620) will be described below.

[0045] Referring to FIGS. 5 to 7, a roller part (611) may be embedded in the support part (610), and a soil covering plate (620) may be wrapped around the roller part (611).

[0046] Elastic members (6111) are formed at both ends of the roller section (611), so that when the actuator (640) expands, the soil covering plate (620) wound around the roller section (611) is unwound, and when the actuator (640) contracts, the soil covering plate (620) can be wound by the elastic force of the elastic members (6111).

[0047] The soil covering plate (620) is formed by connecting a plurality of plate members (621), and the protrusion (6211) and connecting part (6212) of adjacent plate members (621) can be connected in a hinge shape.

[0049] Although embodiments of the present invention have been described above, the spirit of the present invention is not limited to the embodiments presented in this specification. Those skilled in the art who understand the spirit of the present invention may easily propose other embodiments within the scope of the same spirit by adding, changing, deleting, or adding components, and such embodiments shall also be considered to fall within the scope of the spirit of the present invention. Explanation of the symbols

[0050] 100 : Frame 110: Side plate 111 : Soil discharge outlet 120 : If plate 121 : Bulkhead 130 : Fixed bar 200 : 3-point hitch 300 : Excavation plate 400 : Crop transport unit 500 : Power unit 510 : Power take-off device 520: Power transmission shaft 530 : Power transmission unit 600 : Soil discharge section 610 : Support 611 : Roller section 6111 : Elastic member 620 : Soil barrier 621 : Plate member 6211 : Protrusion 6212 : Connection part 630 : Soil removal component 640 : Actuator

Claims

Claim 1 A frame comprising: a side plate formed symmetrically on both sides and including a soil discharge port at the bottom; a bottom plate connected at the bottom of the side plate; and a fixing bar connecting the side plates and having a three-point hitch formed thereon; a digging plate formed to be inclined downward in front of the side plate; a crop transport unit that transports crops dug from the digging plate to the rear, wherein a plurality of bars formed spaced apart at regular intervals are connected in a conveyor format; a power unit that transmits power to the crop transport unit; and a soil discharge unit formed on the bottom plate, which separates from the crops transported along the crop transport unit and pushes soil falling onto the bottom plate between the plurality of bars to be discharged through the soil discharge port; wherein the soil discharge unit comprises: a support member formed in the center of the bottom plate; a soil shielding plate connected to the support member; and a soil removal member formed vertically downward at the front end of the soil shielding plate. An underground crop harvester capable of separating and discharging soil, comprising: an actuator formed between the support member and the soil removal member and operated to push the soil removal member outward; wherein the support member is formed with its upper end inclined from the center toward both sides, the soil removal member is formed with a height lower than that of the support member, and the support member further comprises a roller part embedded in the support member and formed to wrap the soil covering plate; wherein the soil covering plate comprises a plate member having protrusions formed on both sides at one end and a connecting part formed at the other end; and wherein the plate member is formed by connecting a plurality of plate members, wherein the protrusions and connecting parts of adjacent plate members are hinge-connected. Claim 2 delete Claim 3 delete Claim 4 A subsurface crop harvester capable of separating and discharging soil, wherein, in claim 1, the lower plate is characterized by having partitions formed at the front and rear of the lower plate. Claim 5 An underground crop harvester capable of separating and discharging soil, characterized in that, in claim 1, the power unit comprises: a power extraction device provided at the top of the fixed bar and receiving power; a power transmission shaft connected to the power extraction device and a power transmission unit formed through the side plate and connected to the power transmission shaft and the crop transport unit to operate the crop transport unit. Claim 6 delete