JP4712987B2 - Auxiliary wheel device for walking type root crop harvester - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an auxiliary wheel device used for a walking type root vegetable harvesting machine used for harvesting root vegetables such as onions, carrots, radishes and garlic.
[0002]
[Prior art]
  As an onion harvester which is an example of the harvester, for example, one disclosed in Japanese Patent Laid-Open No. 9-191741 is known. This onion harvesting machine has a vertical rotation type leaf stem pulling device that lifts the leaf stem of the onion in the field by moving the catching claw toward the front side and moving it obliquely upward and backward from the vicinity of the ground. The leaf-stem-lifting device is a horizontally-rotating leaf-stem-raising device that moves the leaf-stalk pulled up by the leaf-stem-lifting device upward and obliquely upward in a posture in which the locking claws protrude in the lateral direction. It is equipped with a clamping / lifting / conveying device that clamps and conveys the leaves and stems picked up by the leaf / stem scraping device, and moves forward along the onion strip. The leaf stalk is lifted by the leaf stalk lifting device, and then the lifted leaf stalk is scraped up by the left and right leaf stalk lifting devices and guided to the starting end of the sandwich lifting and transporting device. Then backward Conveyed upwards, the onion is extracted from the field, and then the onion body is released to the field by applying leaf cutting, etc., and 4 onions were planted By reciprocating across a wide flat ridge, it is possible to harvest two strips on the left side in the direction of travel. Moreover, in this onion harvester, in order to make it easy to pull out the onion, the soil breaking body that swells and softens the surrounding soil of the two onions to be harvested in a single stroke is provided on the left side of the straw and the center on the straw. Has been rushed into the cage.
[0003]
  The above configuration is configured to correspond to the harvesting of so-called field-grown onions where the soil of the straw is exposed. Since the multi-sheet prevents the root vegetables from being pulled up, it cannot be pulled up and transported as desired. It was impossible.
[0004]
  Therefore, conventionally, when harvesting with multi-hanging straw, the multi-sheet is manually removed before harvesting with a harvesting machine. However, the leaves and stems coming out of the multi-sheet planting hole are widely projecting around, so it is not easy to turn up only the multi-sheet, but it will be removed while cutting the multi-sheet. It requires a lot of labor and time.
[0005]
  Then, as shown by Unexamined-Japanese-Patent No. 2000-270641, the means which can carry out the harvest of the multi-cultivated onion easily was modified by slightly remodeling the structure of the conventional walking type onion harvester. In this proposed means, by moving the aircraft along the reed, the leaf stems on the multi-sheet are lifted up by the leaf-stalk lifting device, and are immediately cut by the nipping-lifting conveyance device. Collecting the onions that have been cut off and left on the reeds by turning off the multi-sheets that have been removed by the nipping / lifting conveyance device, and then the leaf stems have been cut and removed. It is something that can be done.
[0006]
[Problems to be solved by the invention]
  However, it has been found that a new problem occurs when harvesting onions cultivated using the above means. In other words, in the process of running the aircraft across the straw and cutting the leaves and stems on the multi-sheet, the harvesting part is unevenly distributed laterally with respect to the straw, so the forward resistance acting on the harvesting part is Not only is it biased with respect to the left and right drive wheels, but it is also not possible to rush the soil-cutting body from the top of the ridge on which the multi-sheet is hung. As a result, the forward resistance acting on the soil breaking body also acts on the left and right drive wheels in a biased manner, and the entire body tends to skew toward the side where the harvesting portion is unevenly distributed. In particular, when dead leaves or weeds are accumulated or muddy on the bottom of the ridge, the driving wheel easily slips and becomes more inclined. Therefore, a driving operator who controls the aircraft while walking from the rear of the aircraft must frequently perform a direction correction operation or apply a force to the steering handle to prevent the aircraft from shaking, which requires a great deal of maneuver. Was required.
[0007]
  The present invention has been made paying attention to such a situation, and an object thereof is to provide an auxiliary wheel device that can be suitably used for a walking type root crop harvesting machine.
[0008]
[Means for Solving the Problems]
[0009]
[0010]
[0011]
[0012]
[0013]
[0014]
[0015]
[0016]
[0017]
[0018]
[0019]
[0020]
[0021]
[0022]
  [Configuration, operation and effect of the invention according to claim 1]
[0023]
  (Structure) The invention according to claim 1 is arranged such that the harvesting part of the front part of the fuselage is biased to one lateral side with respect to a pair of left and right drive wheels arranged at the rear part of the fuselage with a left and right interval straddling a wide flat surface. Auxiliary wheel device for walking type root vegetable harvesting machine,
  A plurality of divided wheel members arranged in the circumferential direction of the wheel are attached to the lateral outer sides of the drive wheels, each of the plurality of divided wheel members is provided with a plurality of spike members, and each of the plurality of divided wheel members is a wheel of the drive wheel. It is configured to be freely changeable and fixed in the radial direction with respect to the axial center, and when the split wheel member is in the radially outer working position, the spike member protrudes outward from the outer diameter of the drive wheel, and The spike member is configured to retreat inward from the outer diameter of the drive wheel when the split wheel member is in a radially inner storage position.,
  Each of the plurality of divided wheel members is elongated in the direction in which the divided wheel member is moved in the radial direction, and extended from the end of the elongated hole toward the drive wheel in the forward rotation direction. Forming a long hole extension portion, and fastening and fixing the divided wheel member to a mounting seat provided on the drive wheel with a bolt that penetrates the long hole at the limit on the outer side of the drive wheel of the long hole, The split wheel member is configured to be fixed at the retracted position, and the split wheel member is fastened and fixed to the mounting seat with a bolt that passes through the long hole extension at the long hole extension. The split wheel member is configured to be fixed at the operation position.It is characterized by being.
[0024]
  (Operation) According to the above configuration, during the harvesting operation in the field, the position of each divided wheel member is changed radially outward to switch to the action posture in which the spike member protrudes, and during the traveling traveling outside the field, each divided wheel It is only necessary to change the position of the member inward in the radial direction to switch to a retracted posture in which the spike member is retracted, and it is possible to easily obtain a form suitable for the traveling state while the spike member is mounted on the drive wheel.
  (Effects) According to the invention of claim 1, it is possible to move a large number of spike members by simply changing the position of a small number of divided wheel members on the lateral outer side of the drive wheel, and without troubles such as wheel replacement. It can be easily changed to a state suitable for use in the field and a state suitable for running on the road, and effectively used as an auxiliary wheel device for a root crop harvester that generates biased forward resistance Can do.
[0025]
[0026]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, an example of an embodiment in which the present invention is applied to a walking onion harvester will be described with reference to the drawings.
[0027]
  This onion harvester is basically configured with specifications for harvesting during outdoor cultivation (exposed specifications), and the onion harvester set to the outdoor specifications is shown in FIGS. In addition, by making some modifications to the basic configuration, it is possible to set the specifications for harvesting with multi-hanging straw (multi-specification), and the onion harvester set to multi-specification Are shown in FIGS.
[0028]
  First, the configuration of the outdoor specifications, which is the basic configuration, will be described with reference to FIGS. This onion harvesting machine is configured to harvest two onions on the right in the direction of travel of four onions (root vegetables) cultivated on wide flat bales, and is provided with a loop-shaped steering handle 1. The three-wheel traveling type traveling machine body A has a structure in which a harvesting part B having a two-drilling specification is equipped in the front part.
[0029]
  The traveling machine body A is provided with a pair of left and right drive wheels 2 straddling a kite and a single gauge wheel 3 that moves on the right kite base, and the power from the engine 4 mounted on the rear of the model is shifted by a transmission case 5. Then, it is transmitted to the left and right drive wheels 2 via the axle case 6 and the chain case 7. The driving wheel 2 itself uses a rubber wheel integrally formed by baking lugs on the rim, and the left axle case 6 is expanded and contracted so that the wheel tread can be changed according to the width of the heel. Is configured to be able to change the position to the left and right. Further, the gauge wheel 3 is configured such that the vertical position can be adjusted steplessly by rotating the hand handle 8, and by this adjustment, the ground height of the harvesting part B is arbitrarily determined according to the ridge height or the like. It is possible.
[0030]
  In the harvesting part B, a vertical turning type leaf stem lifting device 10 located on both sides of the leaf stem Wb of the two onions W to be harvested, a horizontal turning type leaf stem scraping device 11 located behind it, Further, the sandwiching / lifting / conveying device 12 located behind, a landslide device 13 located below the starting end of the sandwiching / lifting / conveying device 12, a positioning device 14 located below the sandwiching / lifting / conveying device 12, and the sandwiching / lifting / conveying device 12 Are basically provided with a leaf cutting cutter 15 positioned between the positioning device 14 and the alignment device 14, and a posture alignment device 16 positioned at the rear of the positioning device 14. The detailed configuration and function of each unit will be described below. To do.
[0031]
  [Leaf-stalk pulling device 10 (outdoor specifications)]
[0032]
  The vertical rotation type leaf stem pulling device 10 is connected to a chain 22 that is wound between sprockets provided at the top and bottom of a case 21 and driven to rotate vertically, and a plurality of locking claws 23 are connected in a undulating manner. 23 on the left and right sides of each of the two onions W, each of which is configured to move up the leaf stem Wb of the onion W by moving it from the vicinity of the ground obliquely upward to the rear in a posture in which the projection 23 is projected forward. Deployed to work with.
[0033]
  Here, the leaf stem pulling device 10 is driven as follows. That is, as shown in the transmission system diagram of FIG. 24, the PTO shaft 26 to which power transmission is intermittently connected via the PT0 clutch 25 is horizontally mounted on the work power output unit 24 provided in the front part of the transmission case 5. A lateral transmission shaft 28 for driving a leaf stem lifting device is horizontally mounted on the front end of a forward transmission shaft 27 extending forward from the left end of the PTO shaft 26, and three leaf stems are supported by the lateral transmission shaft 28. The pulling device 10 is driven.
[0034]
  [Leaf stem scraping device 11 (both specifications are shared)]
[0035]
  The horizontally turning type leaf stem scraping device 11 is provided with a number of locking claws 33 connected to a belt 32 that is wound between pulleys provided at the top and bottom of a case 31 and driven to rotate horizontally. Is moved to the rear and obliquely upward from the vicinity of the ground in a posture of projecting toward the lateral side, and the leaf stem Wb of the onion W is scraped up. After the leaf stems Wb of the two onions W, which are arranged facing each other so as to overlap each other and are pulled up by the leaf stem lifting device 10, are scraped from the left and right at the start ends of both belts 32, It can be lifted up rearward and upward.
[0036]
  In this case, the leaf scraping device 11 rotates and moves the locking claw 33 to scrape the leaf stem Wb, so that the locking claw 33 greatly intersects the leaf stem Wb facing in the front-rear direction. Thus, even if it is not pulled up by the leaf stem lifting device 10, it is corrected to the posture that has been tilted forward as described above, so that the scraping action by the leaf stem lifting device 11 is ensured. All leaf stems Wb are scraped up without fail.
[0037]
  [Nipping / lifting transport device 12 (both specifications are shared)]
[0038]
  The sandwiching / lifting / conveying device 12 is constructed by opposingly arranging a pair of left and right wide sandwiching belts 34 that are wound between upper and lower pulleys and driven to rotate laterally. The leaf stems Wb of the only two onions W are strongly clamped by the left and right clamping belts 34 and moved rearward and upward, so that the two onions W on the basket are lifted and hung upward and rearward. It is configured.
[0039]
  As shown in FIG. 24, the left side clamping belt 34 in the clamping / lifting / conveying device 12 is driven by the power extracted from the PTO shaft 26 via the worm reduction mechanism 36 and the chain 37, and the left side clamping The belt 32 on the left side of the leaf stem raking device 11 is driven by the power extracted from the front end of the belt 34. In addition, the right nip belt 34 in the nip pulling / conveying device 12 is driven by the power extracted through the transmission shaft 38 that is interlocked and connected to the middle of the chain 37, and is taken out from the front end of the right nip belt 34. The right belt 32 of the leaf stem raking device 11 is driven by the generated power.
[0040]
  [Positioning device 14 (dedicated to outdoor specifications)]
[0041]
  The alignment device 14 is used in an open field specification, and is configured by opposingly arranging a pair of left and right guide belts 47 that are wound between front and rear pulleys and driven to rotate horizontally, and is substantially horizontal in the front-rear direction. Is installed. Accordingly, the interval between the position aligning device 14 and the nip-lifting / conveying device 12 above it is increased toward the rear side in the conveying direction, and the leaves and stems are pinched by the nip-lifting / conveying device 12 and conveyed obliquely rearward and upward. By introducing the leaf stem Wb of the onion W between the left and right guide belts 47, the onion body to be lifted upward by the pinch-up / conveying device 12 is received by the lower surface of the guide belt 47 and moved further upward. By preventing the onion, the onion body Wa is configured to have a uniform height. As shown in FIG. 24, the left and right guide belts 47 in the alignment device 14 are respectively driven by the power extracted from the rear ends of the left and right belts 32 in the leaf stem raking device 11. .
[0042]
  Here, the leaf and stem pinching force by the left and right clamping belts 34 in the clamping and lifting conveyance device 12 is strong on the front end side of the conveyance for lifting the onion from the field, and the height of the onion body Wa is increased in cooperation with the alignment device 14. In the conveying area to be aligned, the pinching force is weakened so that the leaf stem Wb of the onion W whose upward movement is prevented by the position aligning device 14 is pulled out relatively downward from the nipping / lifting conveying device 12.
[0043]
  [Leaf-cutting cutter 15 (dedicated to outdoor specifications)]
[0044]
  The leaf-cutting cutter 15 is used in open field specifications, and is used as a single disk cutter provided at the front end portion of a pair of chain transmission mechanisms 48 and 49 connected to the PTO shaft 26 so as to bend and extend. It is comprised, and it is possible to adjust the position up and down along the linear slide guide mechanism 50. Accordingly, the length of the leaf stem Wb left uncut by the onion body Wa by cutting the leaf stem Wb of the onion W whose height of the onion body Wa is aligned by the position aligning device 14 and adjusting the operation position thereof. The height can be adjusted.
[0045]
  [Landbreak device 13 (outdoor specifications)]
[0046]
    As shown in FIGS. 19 to 23, the earth crushing device 13 facilitates the pulling of the onion W from the heel by the pinching and lifting and transporting device 12, and the aircraft traveling direction is near the hem of the heel shoulder and from the upper surface of the heel. It is constituted by a pair of left and right soil breaking bodies 41 that are refracted in an L shape in a front view so as to enter below the right two onions W. Each soil breaking body 41 is pivotally supported at the front portion of the body frame 9 so as to be able to swing back and forth around a fulcrum a, and an upper extension end thereof and an eccentric crank portion 43 provided at the right end of the PTO shaft 26 are provided. When the rod 44 is interlocked and connected by the rod 44, and the rod 44 is pushed and pulled via the eccentric crank portion 43, the soil breaking body 41 is driven to swing back and forth around the fulcrum a with a constant small stroke, and below the onion W. By crushing and softening the soil, the onions W that are lifted by the pinch-up and transporting device 12 while holding the leaf stem Wb are pulled out without difficulty.
[0047]
  [Attitude alignment device 16 (dedicated to outdoor specifications)]
[0048]
  The posture aligning device 16 includes a guide bar 51 and a guide plate 52 that are arranged on the terminal end side of the position aligning device 14 with a conveyance path interposed therebetween, and a protrusion-provided belt 53 that is driven by power extracted from the terminal end of the left guide belt 47. After the leaves are cut, the onion main body Wa, which has been left behind by the left and right guide belts 47 sandwiched by the left and right guide belts 47, is collected by the guide bar 51 and the guide plate 52. It is configured to be forced to discharge on the heel after being corrected to an easy lateral orientation.
[0049]
  The onion harvester with an open-surface specification is configured as described above. With respect to the 4 onions W that are cultivated in the open ground in the flat rice field, the two onions W on the right side in the direction of travel are pulled out in one step. The leaves are cut at a predetermined length and left on the basket. After that, the onions W that have been cut into leaves and left on the basket are collected mechanically or manually.
[0050]
  Next, the configuration of the multi-specific onion harvester will be described with reference to FIGS. The basic configuration of this multi-spec is the same as that of the above-mentioned outdoor specifications, the same parts and functional parts as those of the outdoor specifications are given the same reference numerals, duplicate description is omitted, and the structure is different. The part which is doing is demonstrated below.
[0051]
  [Leaf-pickup device 10 (multi-spec)]
[0052]
  In this multi-spec, two leaf stem lifting devices 10 are arranged in parallel on the right outside of the right onion strip, and four leaf stem lifting devices 10 are used as a whole. As shown in the transmission system diagram of FIG. 11, the left two leaf stem lifting devices 10 (1), 10 (2) are driven by the lateral transmission shaft 28 and the two right leaf stem lifting devices 10 (3 ), 10 (4) are driven via the auxiliary chain transmission 29 by sequentially shifting the rear end drive position. Then, the leaf stem lifting device 10 (3) located on the right side of the right onion strip is inclined rearward than the two left leaf stem lifting devices 10 (1), 10 (2), and the front end of the case is on the left side 2. The leaf stem pulling devices 10 (1) and 10 (2) protrude forward and downward from the front end of the case. Further, the rightmost leaf stem lifting device 10 (4) is tilted further rearward than the inner leaf stem lifting device 10 (3), and the front end of the case is the case of the inner leaf stem lifting device 10 (3). It protrudes further forward and downward than the front end. In addition, the latching claw 23 of each leaf-stalk pulling-up apparatus 10 is comprised by what was shape | molded with the soft resin with easy elastic deformation.
[0053]
  [Leaf cutting device 60 (multi-specification only)]
[0054]
  In the multi-specification, a leaf cutting device 60 that cuts the leaf stem Wb of the onion W that has started to be nipped and conveyed by the nipping / lifting conveyance device 12 is disposed below the starting end of the nipping / lifting conveyance device 12. The leaf cutting device 60 is configured to drive the left and right disk-shaped rotary blades 62 with the power extracted through the chain 61 from the front pulley 39 around which the left and right guide belts 47 constituting the alignment device 14 are wound. Has been. In addition, a thick disc-shaped rotating body 63 made of rubber is connected to each of the rotary blades 62 so as to be integrally rotated with each of the rotary blades 62. The onion body Wa is prevented from being damaged by holding and preventing the onion body Wa from being pulled up and coming into contact with the rotary blade 62 by the rotating body 63 while being sandwiched and conveyed rearward.
[0055]
  Further, a scraping protrusion 64 is provided on the outer peripheral surface of the rotating body 63 so that the leaf stem Wb of the onion W introduced into the leaf cutting device 60 is scraped from the left and right so as to be sandwiched and conveyed by the rotating body 63. It has become. Here, the rotary blade 62 is driven at an increased speed in transmission by the chain 61, and the rotating body 63 is also driven to rotate at a high speed. In this case, the peripheral speed of the rotator 63, that is, the backward nipping and conveying speed by the rotator 63 is set to be faster than the backward conveying speed by the nipping / lifting conveying apparatus 12 and the alignment apparatus 14. .
[0056]
  [Crushing device 13 (multi specification)]
[0057]
  As shown in FIG. 5 and FIG. 7, the multi-specific landslide device 13 cuts the soil around the onion main body Wa that has been cut into leaves and left in the reed so that it can be easily pulled up and collected later. The soil cutting body 41 refracted in an L shape in front view so as to enter from the hem of the shoulder to the lower part of the right two onions W, and slightly outside the position just in front of the soil cutting body 41 It consists of an auxiliary tool 42 for turning up the seat that rushes near the hem of the shoulder, and the soil breaking body 41 is pivotally supported around the fulcrum a at the front part of the body frame 9 and extends upward. The end and the eccentric crank portion 43 provided on the right end of the PTO shaft 26 are interlocked and connected by a rod 44, and the rod 44 is pushed and pulled via the eccentric crank portion 43, so that the soil breaking body 41 is rotated around the fulcrum a. Constant Is swung driven back and forth by small strokes, by 膨軟 of it breaking under the soil onions W, so that the onions W is raised vent comfortably.
[0058]
  Further, the sheet-turning auxiliary tool 42 is also pivotally supported around the fulcrum b so as to be able to swing back and forth, and is linked to the soil breaking body 41 via the linkage rod 45 and is synchronized with the ground breaking body 41 swinging back and forth. Then, it is driven to swing back and forth, and by moving forward while cutting the hem of the heel shoulder, the rush resistance of the subsequent soil crushing body 41 into the soil is reduced, and it is hung on the heel. The multi-sheet S is moved forward while slightly turning up the right hem. In this way, by turning the right hem of the multi-sheet S freely with the sheet-turning assisting tool 42 so that it can be easily turned up, it is impossible to turn up the multi-sheet S with the subsequent soil breaking body 41. It is done smoothly. Further, from the sheet-turning auxiliary tool 42, the hem of the multi-sheet F scooped up by the sheet-turning auxiliary tool 42 is guided to the earth breaking body 41, and the multi-sheet S is hooked on the earth breaking body 41. A sheet guide 46 for avoiding this is extended.
[0059]
  After the aircraft passes while cutting leaves in this way, the short leaf stems left uncut project from the cultivation hole of the multi-sheet S, and the multi-sheet S is disturbed by the left leaf stem Wb. It can be turned up easily without any problems. Then, when the multi-sheet S is turned off, the root vegetables main bodies Wa that have been cut into short leaves are lined up on the bowl and may be collected by appropriate means.
[0060]
  [Promotion structure]
[0061]
  This onion harvesting machine in which the harvesting part is unevenly distributed laterally with respect to the left and right drive wheels 2 is easy to skew on the unevenly distributed side (right side in this example) of the harvesting part. Since the soil cutting body 41 that is long from the uneven distribution side of the harvesting part is plunged into the ridge, the aircraft is more likely to be swung to the uneven distribution side of the harvesting part due to the forward resistance acting on the soil cutting body 41. By attaching the auxiliary wheel device 70 to the drive wheel 2, skewing of the airframe is suppressed.
[0062]
  That is, as shown in FIGS. 9 to 11, the auxiliary wheel device 70 includes three divided wheel members 72 having the same specifications, in which a plurality (four in this example) of spike members 71 are fixed in a radial manner, as the driving wheel 2. The divided wheel member 72 is formed in a partial arc shape with a metal plate having a thickness of about several millimeters, and the spike member 71 has a plate surface thereof. Is formed of a plate piece having a thickness of several millimeters toward the circumferential direction, and is welded and fixed perpendicularly to the divided wheel member 72.
[0063]
  The drive wheel 2 to which the auxiliary wheel device 70 is attached connects the boss 2a and the rim 2b with three spokes 2c, and integrally forms a number of propulsion lugs 2e on a rubber coating 2d formed by baking around the entire circumference of the rim 2b. What has been used is provided with a mounting seat 73 for mounting the auxiliary wheel device 70 on each spoke 2c. On the other hand, a pair of elongated holes 74 and 75 are formed near both ends of the divided wheel member 72 of the auxiliary wheel device 70, and the divided wheel member 72 is connected to the adjacent spoke 2 c by a bolt 76 inserted through the elongated holes 74 and 75. The mounting seat 73 is fastened and fixed.
[0064]
  The long holes 74 and 75 are formed in parallel with the radial line passing through the wheel axis, and by loosening the bolts 76, the divided wheel members 72 are moved in a certain range in the radial direction. By tightening the bolt 76 at the limit of 75, it is possible to switch and fix between the operation position moved outward of the split wheel member 72 and the storage position moved inward. As shown in FIGS. 8 and 10, in the operating position, all the divided wheel members 72 are arranged in a series of arcs, and all the spike members 71 protrude from the outer diameter of the drive wheel 2. As shown in FIG. 4, the range of the long holes 74 and 75 is set so that all the spike members 71 are retracted into the outer diameter of the drive wheel 2 and only the drive wheel 2 is grounded at the retracted position.
[0065]
  Further, the inner ends of the long holes 74 and 75 in the split wheel member 72 are bent and extended toward the wheel forward rotation direction F, and the bolts 76 are positioned in the extended portions 74a and 75a in the operating state. The split wheel member 72 is slightly rotated in the circumferential direction. When the split wheel member 72 is set in this way, a propulsion reaction force in the direction opposite to the forward rotation direction F acts on the split wheel member 72 during forward travel, so that the bolt 76 is relatively elongated. 74a and 75a are pushed into the back, and the divided wheel member 72 is stably held at the operating position.
[0066]
  The multi-spec onion harvesting machine is configured as described above, and with respect to the four onions W that are cultivated in the multi-hung flat rice cake, the two onions W on the right side in the direction of travel are one step forward. The leaf stalk Wb is cut by the leaf cutting device 60, and is reciprocated once to perform 4 leaf cuttings, and then the multi-sheet F is wound up or turned up to remove the surface. The onions W that have been exposed, chopped and left on the basket are collected mechanically or manually.
[0067]
[Comparison form]
  Next, a comparative embodiment different from the embodiment of the present invention will be described with reference to FIGS.
  As shown in FIGS. 12 and 13, in the auxiliary wheel device 70 of the comparative form, the split wheel member 72 is swung inward and outward with one connecting point p as a fulcrum, so that the protruding action position and the storage position The split wheel member 72 is fixed at each position by replacing the bolts 76 with the two bolt holes 77 formed in the split wheel member 72.
[0068]
[Another embodiment]
  The present invention can also be implemented in the following forms.
  (1) Depending on the condition of the field, the auxiliary wheel device 70 can be mounted on the left and right drive wheels 2 respectively.
[0069]
  (2) In the field conditions where the driving wheel 2 is likely to slip due to leaf stems, weeds, or mud, the auxiliary wheel device 70 can be suitably used even during harvesting in a normal outdoor field specification.
[0070]
[0071]
  (314) As shown in FIG. 14, the spike member 71 formed by molding a hard rubber material may be connected to the divided wheel member 72 by bolts.
[0072]
  (415) As shown in FIG. 15, the spike member 71 formed by flatly crushing the tip of a short-sized metal pipe material cut into dimensions may be welded and fixed to the divided wheel member 72. According to this, the spike member 71 can be made of an inexpensive material.
[0073]
  (5As shown in FIG. 16, the tongue piece integrally provided on the outer periphery of the divided wheel member 72 can be twisted to form a spike member 71 facing the wheel rotation direction. According to this, the spike member 71 can be provided without requiring a welding process or a bolt connection operation, which is effective in reducing the processing cost of the auxiliary wheel device 70.
[0074]
  (6) As the spike member 71, a plate-shaped member can be used, and a rod-shaped member can also be used.
[0075]
[0076]
  (7In the above-described embodiment, in the configuration of the outdoor specifications, the specifications of the leaf stem pulling device 10 and the soil collapse device 13 can be changed as described above, and the specifications can be changed to the multi specification by attaching the leaf cutting device 60. However, it is also possible to change the position of the outdoor specification and the multi-specification by changing the position between the operating position and the non-operating position while the leaf cutting device 60 is always provided.
[Brief description of the drawings]
[Fig. 1] Overall side view of a multi-species root crop harvester
[Figure 2] Overall plan view of multi-species root crop harvester
[Figure 3] Front view of multi-species root vegetable harvester
[Figure 4] Side view of multi-spec harvesting section
FIG. 5 is a plan view showing the front part of a multi-spec harvesting section.
FIG. 6 is a front view showing a part of a multi-spec harvesting section.
[Fig. 7] Side view of a multi-spec landslide device
FIG. 8 is a side view of a drive wheel equipped with an auxiliary wheel device set in a working posture.
FIG. 9 is a side view of a drive wheel mounted with an auxiliary wheel device set in a retracted posture.
FIG. 10 is a rear view of a drive wheel equipped with an auxiliary wheel device.
[Fig.11] Multi-specific transmission system diagram
FIG. 12 is set to the action postureComparison formSide view of a drive wheel fitted with an auxiliary wheel device
FIG. 13 is set in the retracted position.Comparison formSide view of a drive wheel fitted with an auxiliary wheel device
FIG. 14A is a side view of a split wheel member provided with a spike member according to another embodiment.
  (B) Rear view of split wheel member provided with spike member of another embodiment
  (C) Perspective view of a single spike member
FIG. 15 is a side view of a split wheel member provided with a spike member according to another embodiment.
  (B) Rear view of split wheel member provided with spike member of other embodiment
  (C) Perspective view of a single spike member
FIG. 16A is a side view of a split wheel member provided with a spike member according to still another embodiment.
  (B) Rear view of split wheel member provided with spike member of still another embodiment
  (C) Perspective view of spike member
[Fig. 17] Overall side view of an open-season root crop harvester
[Fig.18] Overall plan view of a root crop harvester with outdoor specifications
[Fig.19] Front view of an open-season root crop harvester
[Fig. 20] Side view of the harvest section with open-air specifications
FIG. 21 is a plan view showing the front part of the harvest section of the outdoor specification
FIG. 22 is a front view showing a part of a harvest section of an outdoor specification.
[Fig. 23] Side view of a land crushing device with open-air specifications
[Fig.24] Transmission system diagram of outdoor specifications
[Explanation of symbols]
  2 Drive wheels
  12 Nipping / lifting conveyor
  41 Crusher body
  42 Sheet turning aids
  60 Leaf cutting device
  70 Auxiliary wheel system
  71 Spike material
  72 Split wheel member
  73 Mounting seat
  74,75 long hole
  74a, 75a Long hole extension
  76 volts
  B Harvest Department
  F Drive wheel forward rotation direction
  S Multi sheet
  W root vegetables
  Wb leaf stem

Claims (1)

Auxiliary wheels for a walk-type root crop harvester with the harvesting part at the front of the fuselage being biased laterally laterally with respect to a pair of left and right drive wheels arranged at the rear of the fuselage across a wide flat wall A device,
A plurality of divided wheel members arranged in the circumferential direction of the wheel are attached to the lateral outer sides of the drive wheels, each of the plurality of divided wheel members is provided with a plurality of spike members, and each of the plurality of divided wheel members is a wheel of the drive wheel. It is configured to be freely changeable and fixed in the radial direction with respect to the axial center, and when the split wheel member is in the radially outer working position, the spike member protrudes outward from the outer diameter of the drive wheel, and When the split wheel member is in the radially inner storage position, the spike member is configured to retract inside the outer diameter of the drive wheel ,
Each of the plurality of divided wheel members is elongated in the direction in which the divided wheel member is moved in the radial direction, and extended from the end of the elongated hole toward the drive wheel in the forward rotation direction. Forming a long hole extension portion, and fastening and fixing the divided wheel member to a mounting seat provided on the drive wheel with a bolt that penetrates the long hole at the limit on the outer side of the drive wheel of the long hole, The split wheel member is configured to be fixed at the retracted position, and the split wheel member is fastened and fixed to the mounting seat with a bolt that passes through the long hole extension at the long hole extension. An auxiliary wheel device for a walk-type root vegetable harvester configured such that a split wheel member is fixed at the operating position .

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