JP2006141414A - Root vegetable harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a root vegetable harvester which can smoothly convey the foliage portions of root vegetables with foliage-conveying belts to well cut the foliage portions with rotary blades. <P>SOLUTION: This root vegetable harvester is characterized by disposing a pair of right and left conveying belts (12) for nipping and conveying the foliage portions of the root vegetables, position-arranging belts (25) for controlling the elevation of the foliage portions of root vegetables and simultaneously rearward transferring and guiding the foliage portions of root vegetables, a foliage-conveying belts (23) for nipping and rearward conveying the upper foliage portions, a pair of right and left rotary blades (27a, 27b) for cutting the foliage portions, and upper foliage-conveying belts (29) for nipping and rearward conveying the upper sides of the foliage portions, and not disposing a transmission means (21) for synchronously driving the foliage-conveying belts (23), the position-arranging belts (25) and the rotary blades (27a, 27b) in a vertical distance (H) portion between the foliage-conveying belts (23) and the upper foliage-conveying belts (29). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a root vegetable harvester.

Conventionally, as described in Patent Document 1 below, a pair of left and right lifting conveyor belts that sandwich the roots and leaves of root vegetables to be vegetated in the field and transport the root vegetables main body part to the rear side and lift them up from the field A positioning belt that introduces a foliage part below the clamping part of the pulling conveyance belt and guides it backward while restricting the rise of the root vegetable body part, and a foliage part above the part that is introduced to the alignment belt A pair of left and right foliage conveyor belts that sandwich and convey rearwardly, a foliage cutting means that cuts foliage portions in the middle of being conveyed by the foliage conveyer belt, power for driving the foliage conveyer belt and the foliage cutting means There is a root crop harvesting machine with a transmission case with a transmission section. The root vegetable harvesting machine configured as described above is configured to pull up the root vegetables to be vegetated in the field by the pulling and conveying belt, the alignment belt, the foliage conveying belt, and the foliage cutting means, and pull the foliage portion during conveyance. Roots are harvested by cutting the stems and leaves and aligning them so that the cutting points are aligned.
JP 2002-17132 A

  In the root vegetable harvesting machine having the above-described configuration, the transmission case is provided with a power transmission unit that drives the foliage transport belt and the foliage cutting means, and is thus provided long in the front and rear directions along these belts. However, in the thing of patent document 1, since it is provided so that a foliage conveyance belt may rotate in the position shifted up and down with respect to the transmission case, a transmission case to the side of the foliage part conveyed by a foliage conveyance belt The foliage part is caught in the transmission case during transportation, and the smooth conveyance of the foliage part may be hindered, so that the foliage part is in the passage of the foliage part conveyed by the foliage conveyance belt. In some cases, the foliage portion of the foliage conveyor belt may be clogged, and the foliage portion may not be properly cut by the foliage cutting means.

The present invention takes the following means in order to solve the above-mentioned problems.
That is, a pair of left and right transport belts (12) that sandwich the roots and leaves of vegetation to be vegetated in the field, pull out from the field and transport to the upper rear side, and the stems and leaves below the sandwiching position of the transport belt (12) And a pair of left and right alignment belts (25) that guide and move backward while restricting the rise of the root vegetable main body, and the stems and leaves above the alignment belt (25) are sandwiched and conveyed backward A pair of left and right foliage conveyor belts (23), a pair of left and right rotary blades (27a, 27b) for cutting the foliage part in the middle of conveyance by the foliage conveyor belt (23), and the foliage conveyor belt (23) A pair of left and right upper foliage conveying belts (29) for discharging leaves that sandwich and convey the upper side of the foliage portion to be conveyed are provided, and the foliage conveying belt (23) and the upper foliage conveying belt (29) are provided. Up and down The space (H) is configured not to include transmission means (21) for driving the foliage transport belt (23), the alignment belt (25), and the rotary blades (27a, 27b) in conjunction with each other. The root vegetable harvesting machine was characterized.

  In this root vegetable harvesting machine, a pair of left and right transport belts 12 grips the roots and leaves of the root vegetables to be vegetated in the field and suspends the root vegetable body so as to be transported upward and pulled out from the field. During the conveyance of the conveyor belt 12, the alignment belt 25 introduces the foliage part below the clamping part of the conveyor belt 12 and guides it backward while restricting the rise of the root vegetable body part. Next, the pair of left and right foliage conveyor belts 23 convey the rear with the foliage portion above the portion introduced into the alignment belt 25 interposed therebetween. The rotary blades 27a and 27b cut the foliage part while being transported by the foliage transport belt 23. The foliage transport belt 23, the alignment belt 25, and the rotary blades 27 a and 27 b are driven in conjunction by the transmission means 21.

  According to the present invention, it is difficult for the foliage to be caught by the transmission means 21 during the conveyance of the foliage part by the foliage conveyance belt 23 and to prevent smooth conveyance of the foliage part. Therefore, the foliage portion is less likely to be clogged in the passage of the foliage portion conveyed by the foliage conveyance belt 23, and the foliage pinching posture of the foliage conveyance belt 23 is less likely to be disturbed. It is performed smoothly and the cutting of the foliage part by the rotary blades 27a and 27b becomes good.

A root vegetable harvesting machine that harvests root vegetables as an embodiment specifically configured based on the above technical idea will be described below with reference to the drawings.
FIG. 1 is a left side view of a root vegetable harvesting machine according to a configuration example of the present invention, and FIG. 2 is a plan view of the root vegetable harvesting machine. In FIG. 1 and FIG. 2, the root vegetable harvesting machine 1 takes the root vegetables from the farm, the control unit 4 for traveling and equipment operation, into the machine body supported by the traveling device composed of the crawlers 3 and 3 that are driven to rotate left and right. The harvesting unit 5, the sorting unit 6 for sorting the taken root vegetables, the accommodated container placing unit 7 for arranging and placing containers containing the sorted root vegetables, and the like are provided. The harvesting unit 5 is provided with a pair of left and right lifting conveyor belts 12 that sandwich the roots and leaves of the root vegetables to be vegetated in the field and transport the root vegetables main body part upward to the rear side and pull it up from the field. A pulling device 11 that raises the leaf portion of the root vegetable is arranged on the front side of the twelve leaf, and a foliage processing device 13 that receives the root vegetable from the pulling conveyance belt 12 and cuts the foliage portion is provided below the rear side of the pulling conveyance belt 12. In addition, it includes a remaining leaf processing device 14 that receives a root vegetable main body portion that is cut and separated from the stem and leaf portion and removes the leaves remaining on the root vegetable main body portion side.

  The harvesting section 5 of the root vegetable harvesting machine is a pair of left and right pulling conveyor belts that lifts the root vegetable harvester from the field by lifting the root vegetable body in a state where the root vegetables main body is suspended while sandwiching the stems and leaves of the root vegetables planted in the field. 12, a pair of left and right alignment belts 25, 25 that introduce a stem and leaf part below the clamping portion of the pulling conveyance belt 12 and guide and transfer it backward while restricting the rise of the root vegetable main body, and the alignment belt A pair of left and right foliage transport belts 23, 23 that sandwich and transport the foliage portion above the portion introduced at 25, 25 and the foliage that cuts the foliage partway through the foliage transport belts 23, 23. Cutting means 27a and 27b, transmission cases 21 and 21 having power transmission portions for driving the foliage conveyor belts 23 and 23 and the foliage cutting means 27a and 27b are provided, and the foliage conveyor belt 23 is provided. 23 is provided so as to pivot about the transmission case 21. Therefore, the transmission cases 21 and 21 are positioned so as to be hidden behind the foliage transport belts 23 and 23, and the foliage is caught by the transmission case while the foliage is being transported by the foliage transport belt. It becomes difficult for the conveyance to be hindered. Therefore, the foliage part is less likely to be clogged in the passage of the foliage part conveyed by the foliage conveyance belt, and the foliage holding position of the foliage conveyance belt is less likely to be disturbed, so that the foliage part is smoothly conveyed by the foliage conveyance belt. Therefore, the cutting of the foliage by the foliage cutting means is good.

  In addition, input shafts 31, 31 having a vertical axis are provided below the rear portions of the transmission cases 21, 21, and the shaft cores drive the foliage transport belts 23, 23 above the rear portions of the transmission cases 21, 21. Is provided with vertical drive shafts 33, 33, and shafts for driving the foliage cutting means 27a, 27b constituted by rotary blades on the front side of the transmission cases 21, 21 are provided with vertical drive shafts 35, 35, A shaft core for driving the pair of left and right alignment belts 25, 25 is provided on the front side of the drive shaft 35 of the foliage cutting means 27a, 27b in the vicinity of the front end of the transmission case 21, 21, and a drive shaft 36 in the vertical direction is provided. Transmission means from the input shafts 31, 31 to the drive shafts 33, 33 of the foliage conveyor belts 23, 23, and alignment with the drive shafts 35, 35 of the foliage cutting means 27a, 27b from the input shafts 31, 31 Be A transmission means to the drive shaft 36, 36 of the bets 25, each of the plurality of gears are composed of meshing tooth decay convoy 32 in a row. Therefore, the transmission case can be configured to be thin in the vertical direction, and the portion where the transmission case protrudes up and down from the inside of the foliage transport belt can be reduced, and the above-described effect becomes more remarkable. For example, when the transmission from the input shaft to the drive shaft of the foliage cutting means and the drive shaft of the alignment belt is configured by a chain transmission mechanism, the chain transmission portions are provided in two upper and lower rows, and the transmission case becomes thicker in the vertical direction. It will be configured.

  As shown in FIGS. 3 and 4, the foliage processing device 13 includes a pair of left and right transmission cases 21, 21, a left and right foliage transport belt 23, 23, and a pair of left and right rotating belts and an alignment belt 25. , 25, the foliage cutting means 27a, 27b constituted by rotating blades, and left and right upper foliage transport belts 29, 29 are provided.

  Further, the left and right transmission cases 21 and 21 are powered via a bevel gear from a transmission shaft disposed on a rotation shaft core in which a harvesting portion 5 is attached to a front axis of the harvesting unit 5 so as to be vertically rotatable with respect to the machine body. , Input shafts 31 and 31 for projecting, and driving shafts 33 and 33 for projecting upward on the rear side to drive the foliage transport belts 23 and 23, and transmission from the input shafts 31 and 31 to the drive shafts 33 and 33 A plurality of gears 32 and 32 that mesh with each other, a drive shaft 35 and 35 that protrudes and extends downward on the front side of the input shaft 31 and drives the foliage cutting means 27a and 27b; The drive shafts 36, 36 that project downward and drive the alignment belts 25, 25, and transmission means from the input shaft to the drive shafts 35, 35; 36, 36, and a plurality of gears mesh in a row. Equipped with matching gear trains 34, 34 . The gear trains 34 and 34 and the gear trains 32 and 32 are arranged in two upper and lower stages with respect to the input shaft in the illustrated example, but both the gear trains are meshed in one horizontal row in the upper and lower stages. It is also possible to provide it. The illustrated transmission cases 21 and 21 are configured by flat base plates 37 and 37 and upper cases 39 and 39.

  The left and right foliage conveyor belts 23, 23 are provided at the front pulleys 41, 41 on the base side of the drive shafts 33, 33 and the front portions of the base plates 37, 37 extending forward from the front ends of the upper cases 39, 39. Free pulleys 42, 42 with tensioners are provided, a plurality of guide rollers 43, 43,... Are arranged between them and stretched so as to surround the upper cases 39, 39. The foliage transport belts 23 and 23 are driven and rotated by the driving rotation of 41, and the foliage portion of the root vegetable is sandwiched between the adjacent portions of the left and right foliage transport belts 23 and 23 and transferred backward.

  The left and right alignment belts 25, 25 are provided with drive pulleys 51, 51 attached to the drive shafts 36, 36, and driven pulleys 52, 52 with tensioners provided at the tips of the base plates 37, 37, between them. Guide rollers 53 and 53 are arranged and are stretched close to the lower surface of the base plate 37. When the root vegetables are lifted and conveyed obliquely rearward by the pulling and conveying belt 12, the roots and leaves of the root vegetables are introduced between the left and right alignment belts 25 and 25. When the upper end portion of the root vegetable main body abuts against the lower end surfaces of the alignment belts 25, 25, the upward conveyance by the pulling conveyance belt 12 is restricted, and the left and right alignment belts are driven by the drive rotation of the drive pulleys 51, 51. 25 and 25 transfer the stem and leaf part of the root vegetable introduced in the meantime backward. The drive pulleys 51 and 51 are arranged close to the front and rear with respect to the left and right foliage cutting means 27a and 27b, and the rear portions of the left and right alignment belts 25 and 25 form an open portion that opens to the left and right.

  The left and right upper foliage conveyor belts 29 and 29 provided above the left and right foliage conveyor belts 23 and 23 are provided on the upper front portions of the pulleys 61 and 61 and the upper cases 39 and 39 attached to the upper ends of the drive shafts 33 and 33, respectively. It is provided by being hung around the provided driven pulleys 62, 62 with tensioners and the guide rollers 63, 63 disposed between them. The left and right foliage conveyor belts 23, 23 sandwich the upper part of the roots and leaves of the root vegetables that are conveyed rearward, and are transferred rearward.

  The foliage cutting means 27a, 27b are arranged so as to cut to a location below the nipping portion by the foliage transport belts 23, 23 of the foliage portion nipped and conveyed by the foliage conveyance belts 23, 23 and above the upper end of the root vegetable main body. Yes. Further, in the illustrated example, the left and right foliage cutting means 27a and 27b are constituted by disk-shaped rotary blades having blades formed on the outer peripheral side, and a part of the outer peripheral side portion is arranged so as to overlap with the upper rotation. The blade 27a is formed with a cut or a sawtooth shape on the outer periphery thereof, and the lower rotary blade 27b is formed in an arc shape without a cut or the like on the outer periphery thereof.

  The foliage processing apparatus 13 configured as described above is disposed close to the pulling and conveying belt 12 so that when the root vegetable extraction apparatus 12 sandwiches the root and foliage portion of the root vegetable and conveys it obliquely upward, The upper end portion contacts the lower surfaces of the left and right alignment belts 25 and 25 to restrict the upward movement of the root vegetable body, and the foliage portions are sandwiched by the foliage transport belts 23 and 23 and transferred to the rear.

  By the way, the pulleys 42 and 42 at the front ends of the foliage conveyor belts 23 and 23 and the pulleys 52 and 52 at the front ends of the alignment belts 25 and 25 are connected to the upper flat portion and the lower side of the flat plate (tip portions of the base plates 37 and 37). Since it is configured to be rotatably attached to the flat portion, the front end portions of the foliage transport belts 23 and 23 and the front end portions of the alignment belts 25 and 25 can be disposed closer to the pulling transport belt 12 than in the prior art. .

  As described above, since the front end portions of the alignment belts 25 and 25 are disposed close to the pulling and conveying belt 12, the foliage is smoothly formed between the pulling and conveying belt 12 and the left and right aligning belts 25 and 25. In addition, in the alignment belts 25 and 25, the stems and leaves introduced here until the upper end of the main body of the root vegetable hits the lower end surface of the alignment belts 25 and 25 are pulled up by the conveying belt 12. Since it is allowed to move up, the pinching force of the foliage is not relatively strong. However, since the front end portions of the foliage transport belts 23 and 23 set to have a relatively strong clamping force than the alignment belts 25 and 25 are also arranged close to the pulling transport belt 12, the left and right alignment belts 25 are arranged. , 25 is immediately sandwiched between the foliage conveyor belts 23, 23, and even if the root vegetables have short foliage parts or the foliage parts are easy to tear, the foliage processing apparatus 13 has root vegetables. When the is taken over, the foliage part is unlikely to fall out of the pulling / conveying belt or falling before being pinched by the foliage / conveying belt.

  The root vegetables taken over by the foliage transport belts 23, 23 and transferred rearward are cut by passing through the cutting action portions of the foliage cutting means 27a, 27b disposed close to the rear ends of the alignment belts 25, 25. The At this time, even if the lower leaf of the foliage is bent, the open portion is formed as described above just before the foliage cutting means 27a, 27b, so that the lower leaf is in its original position while passing through the open portion. It is possible to return to the above and an accurate cutting process becomes possible. Further, since the biting is improved by the cut provided on the outer peripheral portion of the one rotary blade 27a, the cutting ability of the foliage portion is ensured and the stay can be prevented. In the case of the rotary blade 27a having an upper cut, a good cut surface similar to the conventional one can be secured.

  In addition, the guide rollers 43 and the tensioner of the driven pulley 42 are arranged on the base plate 37 or on the outer periphery of the upper case 39 to improve mud removal. In addition, the interval between the driven pulleys 42 and 42 can be configured to be variable, and when the tips of the foliage transport belts 23 and 23 are extended forward, the ironing length is reduced and the gap can be opened. In winter, falling carrots can be reduced by closing the tip. Since the pulley 41 and the driven pulley 42 on the driving side of the tapping portion are formed flat on the upper surface of the boss portion, accumulation of foreign matters such as mud and stones is prevented. Troubles such as slipping and disengagement due to clogging of the pulley groove by foreign matter can be avoided.

  The pulleys of the foliage conveyor belts 23, 23 and the upper foliage conveyor belts 29, 29 are formed with grooves into which the protrusions on the inner side of the belt provided in order to prevent the belt from falling off. Scrapers 71a, 71b, 71c are attached to remove the foliage and mud adhering to the surface. A scraper 71a is attached to the transmission cases 21 and 21 with respect to the drive pulley 41 on the rear side of the foliage transport belts 23 and 23, and a scraper 71b that acts on both pulleys between the pulley of the tensioner and the driven pulley 42 on the front side. Is attached to the tensioner support arm, and a scraper 71c acting on both pulleys between the front driven pulleys 62, 62 of the upper foliage transport belts 29, 29 and the pulley of the tensioner is attached to the tensioner support arm. Thus, for the pulley with tensioner, the scraper acting on both pulleys between the pulley and the pulley of the tensioner is attached to the tensioner support arm, so the number of parts can be reduced and the cost can be reduced. Assembly is also easy.

  The upper foliage transport belts 29 and 29 sandwich the upper part of the roots and leaves of the root vegetables transferred by the foliage transport belts 23 and 23 and transfer them backward. The leaflet belts 29 and 29 are configured by belts with protrusions or the like, thereby generating a conveyance capability. Further, as the height of the belt is set higher, the foliage part is less likely to fall during the conveyance.

  Next, a height position adjusting unit for adjusting the cutting height by the foliage cutting means 27a and 27b will be described. The height position adjustment unit of the foliage cutting means 27a, 27b is shown in FIG. 5 as a first configuration example and shown in FIG. 6 as another configuration example.

  The example shown in FIG. 5 includes a rotary blade 27a (27b) that is a foliage cutting means, a drive shaft 35 that drives and rotates the rotary blade 27a (27b), an attachment member 81 that attaches and fixes the rotary blade 27a (27b), An adjustment knob 82 for adjusting the height position of the attachment member 81 is provided. The attachment member 81 is attached to the drive shaft 35 so as to rotate integrally and slidably in the axial direction. The adjustment knob 82 is attached to the drive shaft 35. It is configured to be engaged via the screw portions 82c and 35b, to be rotatable with respect to the attachment member 81 and to be slidable in the axial direction integrally with the attachment member 81. Accordingly, the mounting member 81 can be moved up and down by an easy operation of simply rotating the adjustment knob 82, and the cutting height of the rotary blade 27a (27b) can be adjusted. Further, since the rotation restricting means 82a and 82b for restricting the rotation of the adjustment knob 82 with respect to the drive shaft 35 are provided, the adjustment knob 82 rotates with respect to the drive shaft 35 during the drive rotation of the drive shaft 35, and the rotary blade 27a. The cutting height of (27b) is prevented from changing, and the cutting process can be performed accurately. The rotation restricting means can be configured to integrally fix the adjustment knob 82 with respect to the drive shaft 35 in the rotation direction, and when the adjustment knob 82 attempts to rotate more than a certain angle with respect to the drive shaft 35, It can also be configured to increase the resistance to rotation. In the illustrated example, when the cutting height of the rotary blade 27a (27b) is adjusted by using the latter configuration, it is not necessary to release the rotation restricting means, and the adjusting knob resists the resistance of the rotation restricting means. Adjustment can be performed simply by rotating the 82 with respect to the drive shaft 35, and the adjustment operation can be performed very easily. Further, when the fixing of the rotary blade 27a (27b) to the mounting member 81 is released (screwing is removed in the illustrated example), the hole formed on the rotation center side of the rotary blade 27a (27b) can pass through the adjustment knob 82. The size of the hole and the size of the adjustment knob 82 are set. Accordingly, the rotary blade 27a (27b) can be removed without removing the adjustment knob 82, and the rotary blade can be easily replaced.

  The configuration example of FIG. 5 will be described in more detail. An attachment member 81 is inserted into a rotation preventing prism 35 a formed at the lower part of the drive shaft 35 so as to be movable only in the axial direction, and the rotary blade 27 a (27 b) is fixed to the attachment member 81. The adjustment knob 82 for positioning the upper and lower sides of the drive shaft 35 is attached to the screw portion 35b at the lower end of the drive shaft 35 by screwing a screw hole 82c formed in the lower portion of the adjustment knob 82. The adjustment knob 82 is provided with a rotation restricting means by a ball 82b that is elastically pressed by a spring 82a that can roll on the outer periphery of the prism portion 35a. Between the support portion 27c that holds the rotary blade 27a (27b) and the attachment member 81, an engagement sphere 83 is interposed so that the support portion 27c and the attachment member 81 rotate integrally, so that the rotary blade 27a ( 27b) the movement in the direction of the rotation axis is restricted by the retaining ring 83a on the side, and grooves formed in the lower outer periphery of the mounting member 81 and holes formed in a plurality of rotational directions on the upper side of the adjustment knob 82 An engaging sphere 84 is interposed, and a retaining ring 84a is attached so that the engaging sphere 84 does not fly out. As a result, the adjustment knob 82 is rotatable with respect to the mounting member 81 and can slide in the axial direction integrally with the mounting member 81.

  The configuration example of FIG. 6 will be described below. In the longitudinal cross-sectional view of FIG. 6, the left half side of the cross section is in a rotation adjustment state, and the right half side of the cross section is in a rotation fixed state. The fixing sleeve 85 and the large-diameter portion 86 at the lower end thereof are fixed to the lower portion of the drive shaft 35 via a non-rotating rectangular column portion 35a. The fixing sleeve 85 is formed by equally dividing the outer peripheral surface to form a locking groove 85a ... by an axial groove, and a threaded portion 85b formed therebelow is connected to the support portion 27d of the rotary blade 27a (27b). The part 87 is screwed. A through hole 87b is formed in the cylindrical portion 87, and the engaging sphere 87a that can be interposed between the engaging grooves 85a of the fixing sleeve 85 is provided to be able to advance and retreat from the through hole 87b. Is provided with a slide sleeve 88 for controlling the advancement and retraction of the engaging sphere 87a.

  The slide sleeve 88 is configured to be slidable in the axial direction by an engaging sphere 88 a interposed in an axial groove 87 c formed on the outer periphery of the cylindrical portion 87. The slide sleeve 88 has a lower stroke position range from the upper limit position reaching the support portion 27d at the upper end of the cylindrical portion 87 to the large diameter portion 86, and a coil spring 89 is provided to bias the slide sleeve 88 to the lower limit position. Further, a taper 88b for controlling the advancement and retraction of the engagement sphere 87a of the cylinder portion 87 is formed. This taper 88b restrains the engagement sphere 87a in the inner locking groove 85a... At the lower limit position of the slide stroke. On the other hand, the inclined surface is formed so as to restrict the rotation of the portion 87 and release the restraint of the engaging sphere 87a at the upper limit position of the slide stroke to allow the support portion 27d to rotate.

  The height position adjusting unit of the foliage cutting means having the above configuration restrains the engaging sphere 87 a at the lower limit position of the upper and lower slide operation ranges of the slide sleeve 88. Further, when the slide sleeve 88 is slid to the upper limit position by finger operation against the force of the coil spring 89, the engagement sphere 87a becomes free, so that the cylindrical portion 87 is screwed by rotating the slide sleeve 88. The height position is adjusted up and down along the portion 85b. Therefore, the height position adjusting unit of the foliage cutting means can be easily handled only by finger operation, as described above.

  A remaining leaf processing device 14 is disposed directly below the foliage processing device 13 with the transport axis directed in the center direction of the vehicle width. The remaining leaf processing device 14 includes a remaining leaf processing roller 14b on the lower side in the transport direction of the transport belt 14a, in an oblique posture with respect to the transport direction. Guide covers 90 are provided on the left and right sides of the descending path of the root vegetables that fall from the foliage treatment device 13 to the remaining leaf treatment device 14. The guide cover 90 is provided so that the upper part is attached to an attachment member provided in the foliage processing apparatus 13 and the lower part hangs down in an unsupported state therefrom.

  By the guide cover 90, even if the root vegetable main body portion of the harvested root vegetable falls from the foliage processing device 13 and the root vegetable main body portion bounces back on the conveyor belt 14 a of the residual leaf processing device 14, the remaining leaf processing is performed without spilling outside. It can be reliably sent to the roller 14b. In addition, since the remaining leaf processing device 14 is disposed below the leaf removal belts 29 and 29, the leaves and soil attached to the leaf removal belts 29 and 29 removed by the scraper are removed from the remaining leaf processing device. 14 is dropped onto the belt 14a and reliably discharged to the outside of the machine, and the accumulation of leaves and soil in the machine body is reduced.

  Further, by configuring the guide cover 90 with a flexible sheet such as a vinyl sheet, even if the root vegetable hits the guide cover 90, the root vegetable will not be damaged, and the lower portion hangs down in an unsupported state. The root vegetables can be smoothly dropped toward the remaining leaf processing device 14 without rebounding greatly.

  The front side of the foliage processing device 13 is covered with a root vegetable extraction device 12, and the left and right sides and the rear side of the foliage processing device 13 are covered with a cover 91. The leaf leaves discharged from the rear of the foliage treatment device 13 fall downward in the rear side of the cover 91 and fall obliquely downward toward the inner side in the left-right direction of the machine body by the leaf discharge shooter portion 13b arranged below the cover 91. Let By covering the periphery of the foliage treatment device 13 as described above, the foliage treatment device 13 is in a windproof state, and the root vegetables to be cut by the foliage cutting means are shaken by the wind to prevent proper cutting. In addition, the leaf leaves are prevented from being detached from the leaf leaf shooter 13b and falling onto the airframe. When the cover 91 is formed of a transparent sheet, the processing state of the foliage processing apparatus 13 can be confirmed, and the rear field of view can be enlarged, facilitating steering during reverse travel or turning.

  The foliage section cut by the foliage processing apparatus 13 is conveyed rearward by the leaflet belts 29 and 29 and discharged, but the left and right pulleys 41 and 41 on the rear side of the leaflet belts 29 and 29 are left and right. It passes between the left and right guide plates 92, 92 and is discharged rearward. Thereby, it is difficult to cause the discharged foliage portion to be caught on the belt or the pulley, and the foliage portion cut smoothly can be discharged.

Vegetable harvester left side view Top view of vegetable harvester Top view of the foliage treatment equipment Left side view of the foliage treatment device Longitudinal sectional view showing the height position adjustment part of the foliage cutting means It is a longitudinal cross-sectional view which shows the height position adjustment part of the foliage cutting means of another structure, The cross-sectional left half side shows the state at the time of rotation adjustment, and the cross-sectional right half side shows the state at the time of position fixing.

Explanation of symbols

12 Pulling up conveyor belt (conveyor belt)
21 Transmission case (Transmission means)
23 Foliage transport belt 25 Alignment belt 27a Rotating blade (foliage cutting means)
27b Rotary blade (stem and leaf cutting means)
29 Upper foliage conveyor belt H Vertical spacing

Claims (1)

  Introduce a pair of left and right conveyor belts (12) that sandwich the roots and leaves of vegetation to be vegetated in the field, pull them out from the field and transport them to the upper rear side, and the leaves and leaves below the clamping position of the conveyor belt (12) Then, a pair of left and right positioning belts (25) that guide and move backward while restricting the rise of the root vegetable main body, and a pair of left and right that sandwich the upper foliage part of the positioning belt (25) and convey it backward And a pair of left and right rotary blades (27a, 27b) for cutting the foliage part in the middle of being conveyed by the foliage conveying belt (23), and the foliage conveying belt (23). And a pair of left and right upper foliage conveyor belts (29) for discharging leaves that sandwich the upper side of the foliage portion that is conveyed backward, and between the foliage conveyor belt (23) and the upper foliage conveyor belt (29) Vertical spacing ( ) Portion is not provided with transmission means (21) for driving the foliage transport belt (23), the alignment belt (25) and the rotary blades (27a, 27b) in an interlocking manner. Root crop harvesting machine.

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