Harvester with finger type transfer part

Abstract

The present invention relates to a harvester having a finger-type conveying unit, and comprises a conveying unit that is inclinedly provided on a base frame that moves along a ridge and conveys excavated underground crops to the rear. The conveying unit comprises: a chain that is rotatably provided on each side of the base frame in an inclined state; a plurality of rod bars that have both ends connected to each of the chains and rotate together with the chains; and a plurality of finger bars that protrude outward from each rod bar and are arranged along the axial direction of the rod bar to lift and convey excavated underground crops to the rear.

Description

Technology Field

[0001] The present invention relates to a harvester having a finger-type conveying unit, and more specifically, to a harvester having a finger-type conveying unit that increases the conveying rate of excavated crops while discharging foreign substances such as soil or stems into the ridges. Background Technology

[0002] Generally, underground crops are referred to as bulbs and include tuberous crops, in which roots form a mass underground to store nutrients, and tuberous crops, in which stems form a mass underground. A representative example of a tuberous crop is the sweet potato, and a representative example of a tuberous crop is the potato.

[0003] These bulbs can be harvested by digging up the ground with agricultural tools such as hoes. When the crop cultivation area is small, harvesting can be done easily with minimal labor, but since large-scale cultivation requires a lot of labor, harvesting devices using mechanical power are used to lower production costs.

[0004] This underground crop harvesting device is equipped with a blade section inserted into the ground to a predetermined depth for excavating bulbs, and a conveyor in the rear area of ​​the blade section that conveys the soil and bulbs excavated by the blade section to the ground at the rear.

[0005] Here, the conveyor is formed as an endless track type having a plurality of rod sections arranged parallel to each other so as to separate and convey bulbs provided by the blade section from the soil, and the rear section is arranged to be inclined upward so that the front section adjacent to the blade section is positioned on the lower side along the direction of movement.

[0006] At this time, the underground crop harvesting device is coupled to the rear area of ​​a towing vehicle such as a tractor, and as the towing vehicle moves forward, the blade part is inserted into the ground at an angle to a predetermined depth, thereby causing the soil and bulbs to move upward into the rear area by the blade part.

[0007] Then, the transported soil and bulbs are placed on a conveyor rotating clockwise, and foreign materials such as relatively small soil particles or small stones fall to the ground through the space between the load sections and are separated. Here, the bulbs are transported to the rear area, fall to both sides of the device, and are aligned along the direction of travel.

[0008] However, in the underground crop harvester disclosed in the conventional Korean registered patent No. 10-0364387, a conveying chain is provided to rotate in an endless track manner between left and right plates, thereby conveying underground crops excavated by the front plow blade to the rear. At this time, although the gap between the conveying chains is narrow so that the excavated underground crops can be easily conveyed, foreign substances such as soil, stems, and stones excavated along with the underground crops are also conveyed together with the underground crops, so there is the inconvenience of the operator having to filter out the foreign substances one by one. Prior art literature

[0009] Republic of Korea Registered Patent No. 10-0364387 The problem to be solved

[0010] Accordingly, the present invention was devised to solve the problems of the prior art as described above, and aims to provide a harvester having a finger-type conveying unit that increases the conveying rate of the crop in the conveying unit that conveys the excavated crop, while allowing foreign substances such as soil or stems excavated along with the crop to be discharged downward. means of solving the problem

[0011] A harvester having a finger-type conveying unit according to the present invention for achieving the above-mentioned purpose is a harvester comprising a conveying unit that is inclinedly provided on a base frame that moves along a ridge and conveys excavated underground crops to the rear, wherein the conveying unit comprises: a chain that is rotatably provided on each side of the base frame in an inclined state; a plurality of rod bars whose ends are respectively connected to both chains and rotate together with the chains; and a plurality of finger bars that protrude outward from each rod bar and are arranged along the axial direction of the rod bar to lift and convey excavated underground crops to the rear.

[0012] In addition, the finger bar may be provided with a protrusion that protrudes downward from the load bar and a seating portion that is bent forward and protrudes from the protrusion, so that the crop is seated on the seating portion of the finger bar and is lifted and transported while being supported by the rear protrusion.

[0013] In addition, the seating portion of the finger bar may be equipped with a packing member that surrounds the seating portion to prevent damage to the crop when lifting the excavated crop from the ground.

[0014] In addition, the conveying unit is provided with an excavation unit at the inclined lower end, and the excavation unit and the conveying unit may be provided to move up and down while maintaining an inclined angle by means of a lifting means on the base frame.

[0015] The above-described lifting means may include a support frame fixedly provided on a base frame and coupled so that the transfer part slides up and down while maintaining an inclined angle; and a lifting cylinder having both ends hinge-connected to the support frame and the transfer part, respectively, to move the transfer part up and down on the support frame.

[0016] In addition, the digging unit may include a digging plate that is provided to protrude downward forward from the conveying unit to dig up crops underground; and a shaking sieve that is provided at the rear of the digging plate so that the other end rotates up and down around one end as an axis to shake off soil from the dug-up crops underground.

[0017] In addition, the excavation unit may be equipped with a camshaft that is configured to rotate in place at the lower part of the shaking net and lifts the shaking net upward.

[0018] Additionally, the digging section is equipped with a crop supply section that supplies underground crops dug up from the upper part of the digging plate to a shaking net, wherein the crop supply section may include a hinge bracket provided on the upper part of the digging plate; a rotating shaft provided to rotate in place on the hinge bracket; and a supply blade provided to protrude radially from the outer circumference of the rotating shaft to transport and supply the dug-up underground crops to the shaking net side.

[0019] In addition, a pivot cylinder is provided with both ends of the crop supply unit and the conveying unit hinged to each other, so that the crop supply unit can be rotated up and down in the digging unit. Effects of the invention

[0020] According to the harvester having a finger-type conveying unit of the present invention, by configuring the conveying unit that conveys the excavated crops as a finger type, the conveying rate of the crops is increased, and foreign substances such as excavated soil or stems are naturally discharged downward along with the crops, thereby having the effect of facilitating the harvesting of crops underground. Brief explanation of the drawing

[0021] FIG. 1 is a schematic diagram illustrating a harvester according to the present invention. FIG. 2 is a side view illustrating a harvester according to the present invention. FIG. 3 is a front view of the conveying unit configured in the harvester according to the present invention. Figure 4 is an operational diagram showing the state in which crops are transported in the transport section of the harvester according to the present invention. FIG. 5 is a rear view of the conveying unit configured in the harvester according to the present invention. FIG. 6 is an exploded view of a lifting means configured in a conveying unit according to the present invention. FIG. 7 is a bottom view of the excavation unit and crop supply unit configured in the harvester according to the present invention. FIG. 8 is a configuration diagram illustrating the driving means of the conveying unit and the crop supply unit configured in the harvester according to the present invention. FIG. 9 is an operation diagram of a shaking net configured in an excavation unit according to the present invention. FIG. 10 is a drawing of a crop supply unit according to the present invention in a state where it is rotated upward. Specific details for implementing the invention

[0022] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0023] The terms used in this invention are defined in consideration of their functions within the invention; however, since these may vary depending on the intentions or practices of the user or operator, the definitions of these terms should be interpreted in a sense and concept consistent with the technical details of this invention.

[0024] In addition, the embodiments of the present invention are not intended to limit the scope of the rights of the present invention, but are merely exemplary details of the components presented in the claims of the present invention, and are embodiments that include components that are included in the technical concept throughout the specification of the present invention and can be substituted as equivalents for the components of the claims.

[0025] Additionally, optional terms in the following examples are used to distinguish one component from another, and the components are not limited by said terms.

[0026] Accordingly, in describing the present invention, detailed descriptions of related prior art that may unnecessarily obscure the essence of the invention are omitted.

[0027] The attached drawings, FIGS. 1 to 10, are drawings illustrating a harvester and each component forming the harvester according to the present invention.

[0028] The harvester according to the present invention is a self-propelled harvester capable of autonomous driving and operation by the manipulation of a driver seated in the driver's seat, separate from a tractor. In this embodiment, a potato harvester that digs up and harvests potatoes, a representative underground crop, is exemplified.

[0029] As shown in FIGS. 1 and 2, this harvester (100) is configured in order from the front to the rear of the base frame (110) with a digging section (200), a crop supply section (300), a conveying section (400), a connecting section (500), a sorting section (600), and a collecting section (700).

[0030] First, the base frame (110) is a component that forms the framework of the harvester (100), and on both sides of the base frame (110), crawlers or wheels, which are driving means driven by power, are rotatably provided.

[0031] This driving means is controlled to drive, stop, and steer by operation from the driver's seat provided at the front of the base frame (110), thereby enabling the potato harvester (100) to move independently along the ridge.

[0032] In particular, the harvester (100) of the present invention has the advantage of being able to easily operate by positioning the driver's seat (120) at the front upper part of the base frame (110), thereby making it easier to secure the driver's view compared to when the driver's seat is located on the side, and allowing the harvester to move smoothly on narrow farm roads, as well as avoiding interference when loading harvested potatoes onto a transport truck.

[0033] In addition, a plurality of side mirrors (122) are provided on the front side of the driver's seat (120) to check the side and rear of the harvester (100), and a display panel (121) is provided on one side of the driver's seat (120) through which a height adjustment rod (470) that moves up and down, like the transfer unit (400) to be described later, is provided.

[0034] A scale indicating the moved height of the transfer unit (400), which will be described later, may be displayed on the height adjustment unit (470), and an indicator such as an arrow pointing to the scale of the height adjustment unit (470) may be provided on the upper surface of the display panel (121), while an upper / lower indicator indicating the rotational position of the rotated crop supply unit (300) in an angle may be provided in conjunction with the upper / low rotation of the crop supply unit (300), which will be described later.

[0035] Accordingly, the driver can easily check the height of the vertically moving conveying unit (400) and digging unit (200) and the rotated position of the crop supply unit (300) while seated in the driver's seat (120).

[0036] First, the conveying unit (400) is configured in front of the base frame (110) of the harvester (100) together with the excavation unit (200) and the crop supply unit (300), and is configured to receive underground crops excavated by the excavation unit (200) and conveyed to the rear by the crop supply unit (300), and to convey them to the sorting unit (600) to be described later.

[0037] To explain the conveying unit (400) in detail, the conveying unit (400) is provided with an inclined slope at the front end of the base frame (110), that is, the lower part of the conveying unit (400) is positioned forward and the upper part of the conveying unit (400) is positioned backward, so as to convey excavated underground crops to the sorting unit (600) through the rear connecting part (500).

[0038] As shown in FIGS. 2 and 3, this conveying unit (400) includes two side plates (410) installed at an angle on the front end of the base frame (110), a chain (420) that is each wound around and rotated on the two side plates (410) via a rotation axis (421), a plurality of load bars (430) that are each connected to the two chains (420) and rotated together with the chains (420) in a transverse state, and a plurality of finger bars (431) that are provided to protrude outward from each load bar (430) and are arranged along the axial direction of the load bar (430) to lift excavated underground crops and convey them to the rear.

[0039] This transfer unit (400) is provided such that both sides and the rear are covered by both side plates (410) and the rear plate (411), respectively, and the front is provided to be exposed to the outside.

[0040] In addition, a rotation shaft (421) is rotatably installed on the upper and lower sides between the two side plates (410), and a chain (420) is wound on each side of the upper and lower rotation shafts (421) to rotate infinitely.

[0041] Among the rotating shafts (421) provided in this manner, a hydraulic motor (422) which is a driving source is connected to the lower rotating shaft. As shown in FIG. 8, the hydraulic motor (422) is connected to one end of the lower rotating shaft (421) via a sprocket wheel and a connecting chain, and the rotating shaft (421) of the crop supply unit (300) to be described later is connected to one end of the rotating shaft (421) via a transmission gear and a connecting chain.

[0042] Accordingly, when the hydraulic motor (422) is operated, the rotation axis (421) of the transfer unit (400) and the rotation axis (330) of the crop supply unit (300) are synchronized and rotate simultaneously, but the rotation is configured to occur in opposite directions.

[0043] And, a camshaft (250) is connected to the other end of the rotating shaft (421) via a sprocket wheel and a connecting chain, so that the camshaft (250) is also synchronized with the rotating shaft (421) of the transfer unit (400) and the rotating shaft (330) of the crop supply unit (300) and rotates simultaneously when the hydraulic motor (422) is operated.

[0044] Meanwhile, between the two chains (420) of the two side plates (410), a plurality of load bars (430) are installed horizontally, that is, in a transverse direction, to connect the two chains (420), and the plurality of load bars (430) may be provided for each unit link of the chain (420).

[0045] In addition, on the surface of the rod bar (430), round bars, i.e., round pipe-shaped finger bars (431) that protrude outward are provided in a row along the axial direction of the rod bar (430).

[0046] As shown in FIG. 3, these finger bars (431) are formed in an "L" shape, comprising a protrusion (431a) of a round bar that protrudes downward at regular intervals from the corresponding rod bar (430), and a seating portion (431b) of a round bar that is bent forward and protrudes from the lower end of the protrusion (431a).

[0047] Thus, the excavated underground crop is placed on the seating portion (431b) of the finger bar (431) as shown in FIG. 4, and is lifted and safely transported while supported by the rear protrusion (431a). At this time, it is preferable that the spacing between the finger bars (431) transporting the crop be spaced at a minimum distance to prevent the excavated underground crop from falling.

[0048] In addition, a packing member (432) is fitted at the tip of the mounting portion (431b) of the finger bar (431) on which the excavated underground crop is placed to prevent damage and breakage of the underground crop, and is provided in a state that wraps around the mounting portion (431b).

[0049] In addition, the packing member (432) forms a step that protrudes outward while its end is fitted into the seating portion (431b), and the crop placed on the seating portion (431b) is caught on the step of the packing member (432) so that movement is prevented, thereby preventing the crop from falling due to rolling.

[0050] Accordingly, the finger bar (431) rotates along the chain (420) while protruding forward from the load bar (430), and penetrates the rear end of the shaking net (240) from bottom to top, lifting the crops placed on the shaking net (240) upward and transferring them to the sorting unit (600) through the rear connecting part (500).

[0051] At this time, as the finger bar (431) reverses its rotational direction at the upper part of the conveying section (400), the crops in the ground that are settled on the finger bar (431) roll down and are discharged to the connecting section (500). During this process, foreign substances such as stems that are caught on the finger bar (431) and scooped up naturally slide down from the finger bar (431) and are discharged naturally due to the vibration of the rotating finger bar (431) along with the round bar shape of the finger bar (431). Foreign substances such as soil or stems that remain on the finger bar (431) fall onto the inner surface of the rear plate (411) when the finger bar (431) reverses at the upper part of the conveying section (400) and are discharged through the inner lower part of the conveying section (400).

[0052] Meanwhile, the excavation plate (230) of the excavation unit (200) is fixed at the front lower part of the above-mentioned conveying unit (400) with a constant inclination, and the excavation depth of the excavation plate (230) can be adjusted according to the height of the ridge while maintaining the inclination (angle of inclination) of the excavation plate (230).

[0053] To this end, the transfer unit (400) is configured with a lifting means for moving the transfer unit (400) up and down, and the lifting means includes a support frame (450) which is installed at an angle corresponding to the inclination of the transfer unit (400) on the front end of the base frame (110) as shown in FIGS. 5 and 6, and which is coupled to allow the transfer unit (400) to slide, and a lifting cylinder (460) which is provided on the support frame (450) and moves the transfer unit (400) up and down on the support frame (450).

[0054] The support frame (450) is provided as a right-angled triangular frame with its front surface formed as an inclined surface corresponding to the inclination of the transfer unit (400), and on both sides of its front surface, "C"-shaped guide rails (451) with open faces facing each other are installed side by side.

[0055] A rail plate (440) is fixedly installed on the outer surface of both side plates (410) of the transfer unit (400) corresponding to the guide rail (451), and a plurality of moving rollers (441) that move while rolling inside the guide rail (451) are rotatably provided on the rail plate (440).

[0056] And, the lifting cylinder (460) includes a lifting rod (461) that moves in and out at its upper end, wherein the lower end of the lifting cylinder (460) is hinge-connected to the guide rail (451) of the support frame (450), and the upper end of the lifting rod (461) is hinge-connected to the rail plate (440) of the transfer unit (400).

[0057] Thus, as the lifting rod (461) moves in and out of the lifting cylinder (460), the rail plate (440) of the transfer unit (400) slides along the guide rail (451) of the support frame (450), which is inclined at an angle corresponding to the inclination of the transfer unit (400). Accordingly, the transfer unit (400) moves up and down in an oblique direction along the guide rail (451) of the support frame (450), which is inclined at the same angle as the inclination of the transfer unit (400), while maintaining its inclination, thereby allowing the excavation depth of the excavation plate (230) to be easily adjusted while maintaining the inclination of the excavation plate (230).

[0058] Meanwhile, the excavation unit (200) is configured to excavate crops from the ground inside the ridge from the base frame (110) in front of the conveying unit (400).

[0059] As shown in FIG. 3, this excavation unit (200) includes two side plates (210) installed to protrude forward from both sides of the lower portion in front of the conveying unit (400), an excavation plate (230) protruding downwardly between the two side plates (210) to directly excavate crops in the soil within the ridge, and a shaking sieve (240) provided so that the other end (rear end) rotates up and down around the first end (front end) of the two side plates (210) behind the excavation plate (230) to shake off soil attached to the excavated crops.

[0060] The two side plates (210) of the excavation unit (200) are each fixed to the two side plates (410) of the conveying unit (400), and a circular blocking plate (220) is provided at the front end of the two side plates (210) of the excavation unit (200) to press down on stems or foreign substances that follow the underground crops when excavating the underground crops, thereby filtering them out so that they do not follow the underground crops. The blocking plate (220) may be fixed to the two side plates (210) or may be provided to rotate.

[0061] And, the excavation plate (230) is provided with a slope such that its front end is positioned close to the ground and protrudes between the two side plates (210), and its rear end is positioned higher than the front end. The angle of inclination of the excavation plate (230) is designed and provided to be the most suitable angle of inclination for digging up crops from the ground and excavating them as the excavation plate (230) moves forward.

[0062] Accordingly, in the present invention, the height of the excavation plate (230) can be adjusted according to the height of the ridge while maintaining the inclination of the excavation plate (230), and this is achieved by the lifting means of the aforementioned conveying unit (400).

[0063] Meanwhile, the shaking rod (240) at the rear of the excavation plate (230) as described above has its front end adjacent to the excavation plate (230) hinged to a hinge shaft (241) to be described later, which is fixed between the two side plates (210), and its rear end is provided to rotate up and down as a free end.

[0064] That is, as shown in FIGS. 3 and FIGS. 7 to 9, the front end of the swinging club (240) is rotatably connected to a fixed hinge shaft (241) that penetrates both side plates (210), and the rear end is provided as a free end not constrained by both side plates (210).

[0065] Thus, the shaking stick (240) is configured so that the rear end rotates up and down with respect to the hinge axis (241) of the front end, and the rear end of the shaking stick (240) has openings formed at regular intervals so that the finger bar (431), which will be described later, can pass through.

[0066] Also, as shown in FIG. 9, the rear end of the excavation plate (230) may be connected and fixed to the hinge shaft (241) separately from the shaking rod (240).

[0067] On both side plates (210) at the rear of the hinge shaft (241) as described above, a cam shaft (250) is provided, the ends of which are hinge-connected to both side plates (210) in a state in contact with the lower surface of the rocking club (240).

[0068] Thus, as the camshaft (250) rotates in place between the two side plates (210), the rear end of the shaking rod (240) is lifted upward and then lowered by its own weight, repeating the upward and downward rotational operation.

[0069] As shown in FIGS. 3 and 7, this camshaft (250) is connected to the rotation shaft (421) of the transfer unit (400) by a sprocket wheel and a connecting chain to be coupled.

[0070] Additionally, a rotating cam (251) may be fixedly provided on the cam shaft (250) in contact with the lower surface of the shaking club (240) to maximize the vertical rotational operation of the shaking club (240), and the rotating cam (251) is provided in a square shape so that when the rotating cam (251) rotates once, the shaking club (240) repeats a rotational operation in which it moves up and down significantly four times.

[0071] In addition, at each corner of the square-shaped rotating cam (251), a cam roller (252) is rotatably provided to roll in direct contact with the lower surface of the shaking club (240), thereby minimizing frictional resistance with the shaking club (240).

[0072] Thus, the supported shaking sieve (240) in contact with the cam roller (252) of the rotating cam (251) repeats a rotational operation that moves up and down four times during one rotation of the rotating cam (251), thereby repeatedly shaking the crops in the ground supplied onto the shaking sieve (240) up and down several times, so that the soil attached to the crops in the ground can be smoothly removed.

[0073] Meanwhile, the crop supply unit (300) is configured to supply crops dug up from the ground at the top of the excavation unit (200) by transporting them to the rear shaking sieve (240).

[0074] As shown in FIG. 3, this crop supply unit (300) includes a hinge bracket (310) whose rear end is hinge-connected to each of the two side plates (210) of the excavation unit (200) and positioned to protrude above the excavation plate (230), a rotating shaft (330) which is hinge-connected to the front end of both hinge brackets (310) and provided to rotate in place, and a supply blade (331) which is provided to protrude radially from the outer surface of the rotating shaft (330) and transfers and supplies the excavated underground crop placed on the excavation plate (230) to a rear shaking sieve (240).

[0075] The crop supply unit (300) configured in this manner is driven in synchronization with the transport unit (400), and the rotation axis (330) of the crop supply unit (300) is connected to the rotation axis (421) of the transport unit (400), which will be described later as in FIG. 8, by means of a transmission gear and a connecting chain to be synchronized.

[0076] The rotation axis (421) of the conveying unit (400) connected in this manner is rotated counterclockwise with respect to FIG. 8, and the rotation axis (330) of the crop supply unit (300) connected thereto is configured to rotate clockwise by changing direction through a transmission gear.

[0077] Also, since the supply blade (331) must rotate together with the rotation axis (330) and push the excavated underground crops toward the shaking sieve (240), it may be equipped with a hard rubber plate.

[0078] At this time, since the supply blade (331) may be damaged or broken due to the hard material of the supply blade (331) during contact with the crops in the ground, to prevent this, a plurality of cut sections (332) are formed at regular intervals in the lower part of the supply blade (331) by cutting the supply blade (331) in the longitudinal direction (up and down direction), thereby allowing the lower part of the supply blade (331) to be divided into a plurality of cut unit members.

[0079] Accordingly, when the lower end of the rotating supply blade (331) comes into contact with the upper surface of the excavated underground crop, the unit member in contact with the underground crop is folded and deformed independently without being constrained by the adjacent unit member by the cut portion (332), thereby preventing the denting of the underground crop, and when it comes into contact with the front surface of the excavated underground crop on the excavation plate (230), it is provided with rigidity to push and transport the underground crop with the rear shaking rod (240).

[0080] In addition, the crop supply unit (300) described above is provided to adjust the distance between the crop supply unit (300) and the excavation plate (230) according to the excavation depth. That is, when the excavation depth by the excavation plate (230) is deep, the crop supply unit (300) is moved upward as shown in FIG. 10 to secure a wide space with the excavation plate (230), and when the excavation depth is shallow, the crop supply unit (300) is moved downward to secure a narrow space with the excavation plate (230).

[0081] To this end, a pivot cylinder (320) is provided between the two hinge brackets (310) of the crop supply unit (300) and the two side plates (410) of the transfer unit (400) to be described later, wherein the upper end of the pivot cylinder (320) is hinge-connected to the side plates (410) of the transfer unit (400), and a pivot rod (321) that moves in and out of the lower end of the pivot cylinder (320) is hinge-connected to the hinge bracket (310) of the crop supply unit (300).

[0082] Accordingly, as the rotating rod (321) moves in and out of the rotating cylinder (320), the crop supply unit (300) rotates up and down around the rear end of the hinge bracket (310) as an axis, thereby adjusting the distance from the excavation plate (230).

[0083] The operational relationship of the harvester according to the present invention as described above is explained.

[0084] First, the harvester (100) of the present invention can move independently along the ridge by operation of a driver seated in the front driver's seat (120), and when moving forward, the digging unit (200) digs up the crops planted in the soil within the ridge.

[0085] In this process, in the harvester (100) of the present invention, the driver can easily adjust the excavation depth of the excavation unit (200) according to the height of the ridge using a hydraulic lever in the driver's seat (120).

[0086] That is, when the lifting cylinder (460) provided in the support frame (450) is operated to extend or retract the lifting rod (461) from the lifting cylinder (460), the rail plate (440) fixed to both side plates (410) of the hinge-connected transfer unit (400) moves upward or downward in a diagonal direction on the inclined guide rail (451) of the support frame (450).

[0087] At this time, since the guide rail (451) of the support frame (450) is installed to be inclined at an angle corresponding to the inclination of the transfer unit (400), the transfer unit (400) moves up and down along the guide rail (451) while maintaining its inclination to adjust its height, and the excavation unit (200), which moves up and down together with the transfer unit (400), also only adjusts its height while maintaining the inclination of the excavation plate (230).

[0088] Accordingly, by easily adjusting the excavation depth of the excavation plate (230) according to the height of the ridge, the excavation plate (230) excavates the ridge at a constant angle and depth, thereby preventing damage to crops underground during the excavation work and enabling smooth excavation work.

[0089] Meanwhile, when the digging plate (230) moves forward with the digging depth adjusted as described above, the crops in the ground are naturally dug up by the inclination of the digging plate (230) and rise to the surface of the ground, and some of the crops in the ground that are dug up are supplied to the rear shaking plate (240) which moves forward by the inclination of the digging plate (230), and the remaining crops in the ground are forcibly transported to the shaking plate (240) by the operation of the crop supply unit (300).

[0090] The crop supply unit (300) is operated simultaneously with the conveying unit (400) and the shaking sieve (240) by the operation of the hydraulic motor (422), and the supply blade (331) of the crop supply unit (300) is rotated clockwise by its rotation axis (330) as shown in FIG. 8, thereby pushing the excavated crops from the ground onto the shaking sieve (240) at the rear to convey them.

[0091] And, as shown in FIG. 9, the front end of the shaking net (240) is hinged to the hinge shaft (241) of the rear end of the excavation plate (230), and the rear end is supported by contacting the rotating cam (251) of the cam shaft (250). Therefore, as the rear end of the shaking net (240) is lifted upward by the rotation of the cam shaft (250) and then lowered by its own weight, the shaking net (240) repeatedly performs an up-and-down oscillating motion, thereby shaking the crops supplied to the shaking net (240) several times, so that soil or foreign matter attached to the crops can be easily shaken off and removed.

[0092] Afterwards, the underground crop from which foreign substances have been removed is naturally positioned at the rear end of the shaking net (240) by the forward movement of the shaking net (240), and in this state, the finger bar (431) of the load bar (430), which is rotated repeatedly infinitely by the chain (420) of the conveying unit (400), penetrates the rear end of the shaking net (240) from bottom to top as shown in FIG. 4, and lifts the underground crop on the shaking net (240) and conveys it upward, thereby conveying it to the sorting unit (600) through the rear connecting unit (500).

[0093] Accordingly, each load bar (430) of the conveying unit (400) is equipped with a plurality of finger bars (431) arranged in a row, thereby continuously conveying the excavated crops and increasing the conveying rate of the crops, and foreign substances such as soil or stems are discharged downwards, so the harvesting of crops underground can be carried out smoothly.

[0094] Although the present invention has been described in detail through specific embodiments, this is for the purpose of specifically explaining the invention, and the invention is not limited thereto. It is evident that modifications or improvements can be made by those skilled in the art within the technical scope of the invention.

[0095] All simple variations or modifications of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be clarified by the appended claims. Explanation of the symbols

[0096] 100 : Harvest Season 110 : Base Frame 120 : Driver's seat 121 : Display panel 122 : Side mirror 200 : Excavation unit 210 : Side plate 220 : Block plate 230 : Digging plate 240 : Shaking net 241 : Hinge shaft 250 : Cam shaft 251 : Rotary cam 252 : Cam roller 300 : Crop supply unit 310 : Hinge bracket 320: Rotating cylinder 321: Rotating rod 330 : Rotating axis 331 : Supply blade 332 : Incision section 400 : Transfer section 410 : Side plate 411 : Back plate 420 : Chain 421 : Rotating shaft 422 : Hydraulic motor 430 : Load bar 431 : Finger bar 431a : Protrusion 431b : Seating portion 432 : Packing member 440 : Rail plate 441 : Moving roller 450 : Support frame 451 : Guide rail 460 : Lifting cylinder 461 : Lifting rod 470 : Height adjustment bracket 500 : Connecting part 600 : Sorting Department 700 : Collection Department

Claims

Claim 1 A harvester comprising a conveying unit that is inclinedly provided on a base frame moving along a ridge and conveys excavated underground crops to the rear, wherein the conveying unit comprises: chains that are rotatably provided on each side of the base frame in an inclined state; and a plurality of load bars, each having its ends connected to the chains and rotating together with the chains. A finger bar comprising a protrusion protruding downward from the load bar while provided along the axial direction of each load bar, and a seating portion bent forward and protruding from the protrusion, thereby placing crops on the seating portion and lifting them while supported by the rear protrusion; wherein the seating portion of the finger bar is provided with a packing member surrounding the seating portion to prevent damage to the crops when lifting excavated crops from the ground, and the conveying unit is provided with an excavation portion at an inclined lower end for excavating crops from the ground, and a shaking sledge is provided at the rear end of the excavation portion such that the rear end rotates up and down around the front end as an axis to shake off soil from the excavated crops, while the rear end has incisions formed at regular intervals through which the finger bar can penetrate, and the excavation portion is provided with a cam shaft that rotates in place at the bottom of the shaking sledge to lift the shaking sledge upward, and the cam shaft includes a square-shaped rotating cam that contacts the lower surface of the shaking sledge to rotate the shaking sledge up and down, and a component rotatably provided at each corner of the rotating cam A harvester equipped to shake the shaker by moving it up and down significantly four times during one rotation of the cam shaft, including a cam roller that rolls in contact with the lower surface of the shaker. Claim 2 delete Claim 3 delete Claim 4 A harvester according to claim 1, wherein the excavation unit and the conveying unit are configured to move up and down while maintaining an inclined angle on the base frame by means of a lifting means. Claim 5 A harvester according to claim 4, comprising: a support frame fixedly provided on a base frame and coupled so that a conveying part slides up and down while maintaining an inclined angle; and a lifting cylinder having both ends hinge-connected to the support frame and the conveying part, respectively, to move the conveying part up and down on the support frame. Claim 6 A harvester according to claim 4, wherein the digging part is provided to protrude downward forward from the shaking sieve and includes a digging plate for digging up crops underground. Claim 7 delete Claim 8 A harvester according to claim 6, wherein the digging section is provided with a crop supply section that supplies underground crops dug up from the upper part of the digging plate to a shaking net, and the crop supply section comprises: a hinge bracket provided on the upper part of the digging plate; a rotating shaft provided to rotate in place on the hinge bracket; and a supply blade provided to protrude radially from the outer circumference of the rotating shaft to transport and supply the dug-up underground crops to the shaking net side. Claim 9 A harvester according to claim 8, wherein a pivot cylinder is provided with both ends of which are hinge-connected to the crop supply unit and the conveying unit, so as to enable the crop supply unit to be rotated up and down in the digging unit.

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