JPH03103113A - Harvester for ginger or the like - Google Patents

Abstract

PURPOSE:To simply and readily adjust the pulling height position of a pulling device by disposing a frame having the pulling device on a main frame having a traveling device in a vertically shakable fixed state. CONSTITUTION:A pair of right and left traveling devices 2 are disposed at the lower portions of a pair of right and left main frames 11 and a frame 19 is supported on driving shafts as shaking support points in a shakable state. A pulling device 3 and operation handles 41 are disposed on the frame 19. When the nuts of a connecting means for permitting the vertical shaking of the frame 19 and for fixing the frame 19 are released and the handles are operated, the frame 19 is vertically shaken in a state supporting a load with the traveling devices.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a harvesting machine that pulls out and harvests crops such as live crops from a field.

(Prior Art) As a technique for harvesting crops growing in a field, for example, there is a technique disclosed in JP-A-60-137207.

In this prior art 1, a pulling device consisting of a pulling belt with an upward slope is installed on one side of the traveling machine, and the stems and leaves of bulbous vegetables are pinched and pulled out from the ground to be transported rearward and upward, and in the latter half of the transport. It was designed to cut the stems and leaves using the cutting blade provided.

It was also used as a harvester for harvesting concubines, onions, etc.
There is a technique disclosed in Japanese Patent No. 173021.

This prior art 2 is equipped with a pulling conveyor that supports and pulls the foliage upward, a cutter for cutting the foliage is provided on the upper part of the conveyor, and a chute for discharging the foliage is provided at the rear of the cutter. there were.

(Problems to be Solved by the Invention) By the way, crops have lengths and shortcomings, and it is necessary to adjust (adjust) the pulling position of the pulling device (pulling belt) in the height direction to accommodate these lengths.

However, in the prior art 1 and 2 described above, it was not possible to adjust the pull-out position.

Therefore, if the pulling height position is adjusted by adjusting the vertical position of the traveling device (wheels) that supports the entire device, it is difficult to adjust it easily because the traveling device is subject to the entire load. there were.

In view of the problems of the prior art, the present invention mainly includes a pedestal having a traveling device and a pulling device, which can be vertically swung and fixed, so that the pulling device can be easily and easily moved to the pulling height position. The purpose is to make it adjustable.

(Means for Solving the Problems) The present invention comprises a pair of left and right running devices, a pair of left and right bow belts that pull out a crop such as ginger while sandwiching it and conveying it backwards, and a control handle. In order to achieve the above-mentioned purpose,
The following technical measures have been taken:

That is, in the present invention, the pair of left and right traveling devices 2 are provided at the lower portions of the pair of left and right main frames 11, and a pedestal 19 is provided which is supported vertically and swingably with the upper part between the main frames 11 as a fulcrum. 19 is provided with a connecting means 30 that includes the pulling device 3 and the operating handle 41, and allows the vertical swinging of the bridge 19 and fixes it.

(Function) According to the present invention, in order to adjust the pulling height position of the pulling device 3, loosen the nut 33 in the connecting stage 30 shown in FIG. When the operating handle 41 is operated as shown in FIG. It is adjusted while being firmly supported by the traveling device 2. After adjustment, tighten the nut 33 to fix it.

(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.

1 and 2 illustrate a harvesting machine intended for a farm as a crop S, and the harvesting machine consists of a machine body L and a pair of left and right running wheels that support the machine body 1 approximately parallel to the field. A device 2 and a extraction device 3 consisting of a pair of left and right extraction bells 1-3A and 3B which extract the crop S while conveying it backwards are provided.

A driving means 6 consisting of an engine 4, a ξ tension device 5, etc. is mounted on the upper part of the fuselage 1, and a space 7 penetrated in the longitudinal direction is formed in the abdomen of the fuselage 1. A pull-out device 3 is housed in a substantially vertically central portion (substantially toward the bottom) of 7, with the feeding direction being the front-back direction.

The traveling device 2 includes an auxiliary wheel 8 arranged in front thereof, the engine 4 is covered with a bonnet 9, and the transmission device 5 is covered with a fuel tank 98,
The pull-out belts 38 and 3B are covered with a belt cover 10, and the center of gravity G of the entire body 1 is set near the drive section of the traveling device 2.

The body 1 is provided with a pair of main frames 11 on the left and right sides, each of which has a triangular shape in side view and has a window 11A so that the working status of the pair of extraction bells I-3A and 3B can be confirmed. is hollow and doubles as a chain case (transmission case).

Inside this main frame 11, a drive sprocket 13 for a drive shaft 12 is located at the top of the main frame 11, and driven sprockets 16 for axles 14, 15 are located at the top of each front. 17 are respectively arranged, and each of these sprockets 13, 16. A winding power transmission body 18, shown as a chain, is wound around the shaft 17.

At the upper top between the pair of left and right main frames l1, a mount 1 with 1,000 drive stages 6 is installed.
9 is provided, and on this frame 19, the engine 4 is arranged at the front and the ξ tension device 5 is arranged at the rear, and the pulley 2o on the output shaft of the engine 4 and the input shaft of the tension device 5 are arranged on the frame 19. Helt 22 is wrapped around the pulley 2l,
The bonnet 9 that covers the engine 4 has a fulcrum shaft 2 at the front thereof.
It can be opened and closed freely around center point 3, and the closed position is secured by a stopper 24, making it easy to maintain the auxiliary equipment of the engine 4, such as a plug and a capretor.

The front part of the pedestal 19 is provided with a front frame 25 which has an arch shape when viewed from the front and rear and is inclined downward in the front.The rear left and right sides of the pedestal 19 are provided with an arch-shaped front frame 25 having a pair of left and right columns. A rear frame 26 is provided below, and the lower part of the rear frame 26 is connected to the left and right frames 27 of the extraction device 3, and the left and right frames 27 are shaped like a central pillar box extending in the front-rear direction. The lower end side of the front frame 25 is connected to the front side of the main frame 11, the mount 19, the front frame 25, the rear frame 26, and the left and right frames 27, which constitute the body l.

The traveling device 2 supports the machine body 1 substantially parallel to the field.
It is a two-axle four-wheel type equipped with a front wheel 28 and a rear wheel 29, the front wheel 28 is attached to the axle l4 at the front top, and the rear wheel 29 is attached to the axle 1 at the rear top.
5 on the outside of the main frame 11, respectively.

The drive shaft 12 is supported by a bearing case 2r that protrudes inward from the top of the main frame 11, and is operatively connected to a transmission shaft in the tension device 5 via a steering clutch.

1,000 drive stages 6 for a pair of left and right main frames 11 in the fuselage 1
The extraction device 3 is supported in a swinging manner as shown by arrow A in FIG. 12, with a drive shaft 12 at the top of the main frame 1l as a fulcrum, and the extraction height position can be adjusted by this. Therefore, the pair of left and right front and rear legs of the main frame 11 and the left and right frames 27 have the first
They are connected by a connecting means 30 shown in FIGS. 2 to 15.

That is, the 1,000-stage connection 30 has a bracket 31 having an arc-shaped mounting hole 31A with the drive shaft l2 as a fulcrum.
B, fixed in a position opposite to IIC, while front and rear legs 1
1B and IIC are inserted into each of the mounting holes 31A and fastened with nuts 33. Therefore, by loosening the fastening of the nuts 33 and operating the handle 4l in the direction of arrow A, the mount 19 can be removed. is allowed to swing as indicated by arrow A, and after adjustment, the nut 33 is tightened to hold the adjusted position fixed.

A pair of auxiliary wheels 8 are arranged on the left and right in front of each traveling device 2. Each auxiliary wheel 8 is rotatably supported via a support shaft 35 at the lower end of a bell-crank-shaped swinging arm 34, and is also oscillated. The movable arm 34 is attached to the front frame 25 by a support shaft 35 in order to move up and down between a lowered position D, where the auxiliary wheels 8 and the traveling device 2 support the machine 1 substantially parallel to the field, and a raised position U, which is located above. installed.

Further, the swing arm 34 is operatively connected to an operating lever 37 via a turnbuckle-structured ring 36 connected thereto, and can be operated up and down by this operating lever 37.

The operating lever 37 is fixed to both ends of a connecting shaft 38 that extends between the upper parts of the left and right main frames 11 and is rotatable about an axis. It is pivoted and can be operated up and down, and
There are a pair of left and right operating levers 37, rods 36, etc., and by moving either one of the operating levers 37 up and down, the auxiliary wheels 8 can be operated to a lower position D and an upper position U.

Note that the swing arm 34 has a stopper 38 that can come into contact with the rear part of the front frame 25, so that when the auxiliary wheel 8 encounters an obstacle or the like, the impact is applied to the rear of the front frame 25. 36 refraction etc. is avoided.
9 indicates a spring for pulling up, etc.

In addition, the distance between the front and rear wheels 28, 29, the auxiliary wheel 8 and the front wheel 2
8 is larger than the groove width W of the groove 40 between the ridges of the field.

At the upper end of the rear frame 26, so as to protrude rearwardly,
A pair of left and right handles 41 are attached, and each handle 41 is provided with a working clutch lever 42 and a main clutch lever 43. Note that 44 is a forward/reverse switching lever.

The belt cover IO has a pair of pull-out bells on the left and right} 3A, 3
There is a pair on the left and right corresponding to B, and each belt cover lO
are attached to a pair of left and right frames 27 with bolts or the like. The pulling bells 1-3A and 3B are for pulling out the stalks of the crops S, such as crops S growing on the left and right sides, from the field while conveying them backwards, and the left and right pulling belts 3A, 3B is made of an elastic material such as rubber with a JISA shore hardness of 50 to 60'', and is wrapped around the driven pool 45 at the front end and the drive pulley 46 at the rear, and also holds the stalk of the crop S from the left and right sides. It is guided by as many guide pulleys 47 as possible, and is provided as a whole so as to be freely rotatable with a slight incline upwardly rearward.

Each pull-out bell}3A, 3B has three engaging protrusions 48 on the inner circumferential surface of the belt main body, and two protrusive stripes 49 on the outer circumferential surface at positions vertically shifted from the center. .50 respectively, and the engaging protrusions 48 fit into the circumferential grooves of the boos IJ45, 46, and 47, and the protrusions 49.50 on the outer periphery are arranged so that the pair of pull-out belts 3A, 3B are opposed to each other. The crop supporting portions interlock with each other with a slight gap between them.

Both pull-out belts 3A. 3B engagement protrusion 48 and protrusion 4
9 and 50 are integrally shaped or have a chevron shaped member formed separately on the belt body, for example, a V belt is baked onto a flat belt, and it is sufficient to have one or more of each, and the pull-out bell l The positional relationship between the engagement protrusion 48 and the protrusion portion 49 in -3A is the same as that of the pull-out belt 3B, and the pull-out belts 3A and 3B have the same shape, and the pull-out belt 3B has the same shape. It is wound upside down on the pull-out bell l-3A.

The crop S supported between the two pulling belts 3A and 3B is folded into a meandering shape as shown in FIGS. It is held in a curved position and is subjected to a strong pulling force by the rearward movement of the pulling bells 3A and 3B.

Therefore, when the guide pulley 47 is rotatably mounted on the U-shaped support frame 51 by the pin shaft 52, the upper surface side moves in a narrowed shape as shown by arrow B in FIG. 8 due to the reaction of the pulling force F. In order to prevent the pull-out belts 3A and 3B from coming off,
As shown in FIGS. 9 and 9, the pin shaft 52 is inclined so that the distance between the axes of the bottle shaft 52 is wider on the upper surface side and narrower on the lower surface side. Further, the guide pulleys 47 are arranged in a staggered manner as shown in FIG. 7, so that when the stem S is supported by the pull-out belts 3A and 3B, the guide pulleys 47 are easily elastically deformed in a wavy manner.

The driven booby 45 is attached to a driven shaft 54 provided at the front end via a tension adjustment mechanism 53, and the driven shaft 54 is attached to the driven shaft 54, which is attached to the driven shaft 54 so that the upper side of the stalk of the crop can be moved between the left and right pair of pulling belts 3A and 3B. A scraping device 61 is provided with a pair of left and right scraping wheels 55, 56, 57, 58, 59, 60 for scraping.

As shown in FIGS. 2 and 3, the scraping device 61 attaches a scraping wheel 55.58 to a bolt 63.64 on each of the left and right driven boobies 45 via cylinders 61 and 62 having different heights. Attach each boss part 65. of the scraping wheel 55.58. 66
, the vertical shaft 67.68 is fitted and removably provided with a stop bolt }69.70, and the scraping wheels 56.57, 59.60 are attached to the vertical shaft 67.68 with stop bolts 71.72.73.
．． 74, and each scraping wheel 55~
60 are provided at intervals in the height direction, and the left and right wheels are shifted in position in the height direction.

Therefore, the stem rod S is moved as shown in FIG. By rotating as indicated by arrow C, it is possible to successively scrape the pulling belt of the pulling device toward the starting end.

Here, by shifting the positions of the opposing claws of the left and right wheels in the height direction, the stem rod S is prevented from being compressed and broken during raking. This ensures that the cutting is secure.

Furthermore, among wheels 55 to 60, wheel 55.58
, 57 and 60 are all made of hard plastic resin and have a sprocket shape, and wheels 56 and 58 are made of metal and have a sprocket shape.

In addition, 75.76 is a detance collar, which maintains the vertical distance between the wheels and prevents crops etc. from getting entangled with the shafts 67, 6B due to the rotation of the vertical shafts 67, 68. It is loosely fitted to .68.

As shown in FIG. 4, a mounting frame 77 is attached to the front side of the fuselage 1 by a connecting shaft 78.
8 can be inserted and removed freely between the boss 79 on the body 1 side and the boss 80 of the mounting frame 77, and can be attached and detached by stop bolts 81 and 82, respectively.

The mounting frame 77 has a substantially ■-shaped shape when viewed from above,
This mounting frame 77 is provided with a cutting tool 83 and a vertical shaft 67,68 equipped with scraping wheels 55-60, and the vertical shaft 67,68 is supported at the tip of the mounting frame 77 by bearings 84,85. ing.

The mounting frame 77 has guide portions 86, 87 for guiding the stems raked by the raking device to the supporting starting ends of the pulling belts 3A, 3B.

The cutting tool 83 is a disc cutter, and is arranged to be shifted to the right in the embodiment from the drawing center line LL, and has a cutting edge 838 on the outer periphery of the disc.

The cutting tool 83 is attached to the mounting frame 77 as shown in FIG.
A support shaft 89 is provided upright on the arm 88, and is rotatably attached to the support shaft 89 via a bearing device 90, and is provided with a resistance applying device 9I represented by a coil spring.

Therefore, the cutting tool 83 is configured to rotate only after it overcomes the resistance applying device 91. Note that 92 in Figure 19
indicates a labyrinth means for preventing foreign matter from entering the support shaft 89.

The cutting portion 93 of the cutting tool 83 is located in front of the pulling start end 94 of the pulling belts 3^, 3B, and is adapted to cut the stem S before supporting the pulling belt stem.

The cutting portion 93 is composed of the engagement portion between the cutting edge 83A of the cutting tool 83 and the claw 56A of the scraping wheel 56, and the cutting portion 93 is located below the pedestal 19 and above the starting end of the extraction device 3. are doing.

The claws 568 of the wheel 56 are adapted to push the stem S into the cutting portion 93, and the claws 56A are attached to the lower surface of the outer periphery of the cutting tool 83.
The top surfaces of the two are in sliding contact with each other.

Therefore, the stem S that has been scraped and pushed in by the wheel 56
is cut in cooperation with the cutting edge 83A of the cutting tool 83, and when this cut #fFm resistance is greater than the resistance imparting device H91, the cutting tool 83 is driven to rotate, and the rotation of the wheel 56 causes the cut stem to be cut. In the figure, it can be released while being supported on the right side.

As shown in FIG. 23, the outer circumference of the wheel 56A of the wheel 56 is shaped into a downwardly bent portion 56B, thereby making smooth sliding contact with the cutting edge 83A.

Further, in the part of the arm 88 corresponding to the cut part 93,
As shown in FIG. 4, by forming the notch 94, the lower part is opened until the cutting of the stem is completed, making it easy to enter the cut portion 93 of the crop (stem), thereby making it possible to completely cut the crop (stem).

Reference numeral 95 denotes a stem guide device, in which a bottom plate 96 that covers the upper surface of the cutting tool 83 is fixed onto the mounting frame 77 via a stay 97, and a stem guide device 95 is provided with a vertical stem positioned between the scraping wheels 59 and 60. A first guide plate 98 is provided upright to cover the shaft 68, and the shape of the first guide plate 98 is maintained.
8, as shown in FIG. 2, the left front part is at the frontmost end and is a curved part 98A, and has a guide part 98B that is inclined rearward on the right side of this part, and extends toward the cutting part 93. The scraping wheels 58 to 60 extend from the curved portion 98A.
The outer peripheries of the raking wheels 55 to 57 overlap with the guide portion 98B in a plan view, and there is a guide portion 98B for raking and guiding the stems raked by the raking device to the right. is being used.

A second guide plate 99 is placed above the first guide plate 98 for the wheel 6.
0, and this second guide plate 99 has a curved portion 99A having substantially the same shape as the first guide plate 98 in plan view.
, ! It has an interior 99B and is attached by a stay 100.

Between the wheels 56 and 57 of the scraping device is a vertical shaft 67.
A third guide plate 101 which is substantially oval in plan view and surrounds the outer periphery of the mounting frame 77 is attached by a stay 102 projecting outward from the front end of the mounting frame 77 and a stay 103 erected from the stay. , the curved portion 98A of the first and second guide plates 98,99. 98A and curved portion 1 of third guide plate 101
01A, the first end of the scraping start is open at the front and tapered at the rear.
A second guide passage 103 is formed in the form of a guide passage 102 and is bent toward the cut portion 93 and expands outward from the cut portion 93. A discharge chute 104 is attached to the mounting frame 77 with bolts 105 in a downwardly inclined shape (see FIG. 19).

In the second guide passage 103, than the first guide plate 97,
The second guide plate 98 is located at the rear in plan view, and here,
The foot roller portion 106 has a shape, and this foot roller portion 10
6, the upper part of the second guide plate 98 has a forwardly bent push-in portion 98C (see FIG. 24).

This ensures that the cut stem is captured by the foot roller 106 and that the foil 57 is bitten into the claw by the push-in portion 98C, so that the cut stem is smoothly discharged through the discharge chute 104.

A fourth guide plate 107 having the same planar shape as the third guide plate is attached to the stay 103 on the wheel 57. This prevents it from being scraped out forward and promotes release through the release chute 104.

Here, the stem cut at the cutting part is supported by the rotation of the wheel 56 and the cutting tool 83, and is guided to the second guide path 103 and discharged outward in front of the right front wheel by the discharge chute 104. Ru. Here, the raking wheels 55 to 60 in the raking device are shifted in phase in the height direction, and the wheel 55 on the stem release side
57 are the other wheels 5 corresponding to these.
It is set at a higher position than 8-60.

Note that since the wheels 57 to 60 are all exposed forward from the guide plate, the claws of these wheels do not have cutting edges, ensuring safety.

Reference numeral 108 designates a pair of left and right dividers, which are made by bending a bar into a triangular shape when viewed from the side. It is removably attached to the boss 110 of , and is fixed with a set screw 111.

Here, the cutting tool, the scraping device, and the stem guide device 95 are the 18th
As shown in the figure, it is made into a unit, and the unit is detachable except for the lower wheels 55 and 58 of the scraping device.

This unit can be attached or detached by pulling out the connecting shaft 78,
By releasing the connection between the and the mounting frame 77, removing the stop bolts l-69.70 of the vertical shafts 67 and 68, and removing the setscrew 11 of the divider, it is removed as shown in Fig. 18, and the installation is reversed. done in steps.

In this way, by removing the unit hll2 that includes the cutting tool 83, it becomes easier to load the harvester onto a wagon or the like, and it is advantageous for storage space. Some are low, to accommodate the pull-harvesting of this low crop.

The tension mechanism 53, as shown in FIG.
3, connect the tension arm 114 with a tension spring (not shown),
The tension arm 114 is attached with an adjustment bolt or the like, and the tension of the pull-out belt can be adjusted via a driven pulley, and the tension arm 114 is equipped with a scraper tool 115 for forming a pulley groove in the driven booby, as shown in Figures 20 and 21. is installed.

The left and right raking wheels 55 to 60 have chevron-shaped claws at equal intervals in the circumferential direction on their outer peripheries, as shown in FIG. It has an approximately sprocket shape, is larger than the driven pulley, has a circumferential speed of the pulley, and has a pull-out belt 3A. It is faster than 3B's movement speed.

The left and right scraping wheels 55 to 60 rotate synchronously, and the rotational trajectories of the left and right claws overlap, but they do not come into contact like gears, but are in an occlusal state with a gap between them, and the stem rod is inserted into the gap. It is designed to be sent backwards while being pinched.

The drive boolean 46 is located near the rear wheel and has a first
As shown in FIGS. 5 and 6, the transmission shafts 116 and 117 are attached to the lower ends of vertical transmission shafts 116 and 117, which are connected to both ends of the output shaft of the transmission device via a beher gear mechanism. Tube collars 118 and 119 are loosely fitted into 117.

Therefore, as the drive pulley 46 rotates in the direction of arrow D in FIG. 5, the pull-out belts 3A, 3B are rotated in the direction of arrow E in FIG.

Of the transmission shafts 116, 117, two scraping wheels 120, 121 are attached to the left transmission shaft 116, upper and lower. These wheels 120, 121 are approximately in the shape of a sprocket, and the outer claws of The tip is located near the supporting surface (pulling center line) of the drawing heel.

The upper and lower scraping wheels 120, 121 have the same shape and are made of sheet metal, and above the wheel 120 is provided a guide member 122 made of a wire whose one end is connected to the rear frame.

The guide member 122 wraps around the bottom of the claws of the scraping wheels 120, 121 in a plan view, and the latter half thereof extends outward perpendicularly to the working direction, and is attached to the main frame l1 of the rear wheel.
It ends near the inside of .

Reference numeral 123 denotes a scraping chute, which discharges the cut stems together with the scraping wheels 120, 121, the guide member 122, and the guide plate 124 to the inside of the rear wheel. Install the approximately L-shaped stay 125, and attach the bolt 1 to this stay 125.
It is attached by 26.

The scraping chute 123 has its upper edge surface as the pulling belt 3^
A straight section 1238 is formed with a narrow gap between the lower surface of the drawing center line and the right side of the drawing center line, extending parallel to the line.
3B, the pull-out bell}3A. Termination part 125 of 3B
Further to the rear is a guide portion 123C that is inclined to guide the cut stem to the left while supporting it.

The guide plate 124 is the belt force bar 1 of the right side pull-out belt 3A.
The guide member 122 and the guide member 122 are arranged to curve the scraping passage 126 backward from the terminal end 125 to the left, and are made of an elastically deformable plate.

A rear cutting portion 127 is provided on the lower surface of the support frame 51 slightly forward of the front end of the guide plate 124 .

This rear cutting device 127 is the seventh. As shown in FIG. 8, the straight blade 129A. A pair of flat cutting tools 12 having 130A
9, 130, the straight blades 129A, 130A are ξ
It is removably attached to the shape, and the straight blade 12
9A and 130A intersect in the middle, and this intersection is located on the drawing center line.

Therefore, the aforementioned cutting tool 83 cuts the middle part of the stem and leaves, and the stem with the bulbous part is pulled out by the pulling belts 3A, 3B while being conveyed backwards. The bulb is shredded again and the bulb is pulled out, and the stem supported by the pull-out bells 1-3A and 3B is ejected to the left via the guide plate 124 and the like.

Here, the bulb parts are sequentially dropped onto the field between the traveling devices, and the cut stems are first dispersed and released, with the upper needles on the right side and the middle part on the left side.

Due to the cutting resistance of the flat cutting tools 129 and 130, the pull-out bells 3A and 3B cause a so-called opening phenomenon in the expanding direction, but in order to prevent this, the cutting tools 129
．． At the rear of 130, a pair of left and right support frames 51 are connected to each other by a connecting member 131 and a fastener 132.

Note that the overlapping portions of the flat cutting tools 129 and 130 are pivotally supported by a pivot pin 133 or the like, and a nut 128 is used to support the overlapping portions.
It is desirable that the blade be detachable and have a groove 129B in the longitudinal direction of the blade edge, as shown in FIG.

As shown in Figures 16 and 17, this harvester has a stand function by lifting the front end and using two rear wheels and a handle 4l, and in this stand state, the center of gravity of the machine is: It is designed to be located between the rear wheel 29 and the handle 4l.

In this way, by standing the rear wheel 29 and the handle 4l, the tension mechanism 53 and the rear cutting device 1
27 etc. is said to be easy to maintain.

10 and 11 show a chain tensioning mechanism 134 in the main frame 11, and this tensioning mechanism 134 holds the U-shaped bracket 135 in the main frame 11 with the fastener 1.
36 as a fulcrum, and on the fastener 136,
A guide roller 137 that contacts the chain is rotatably fitted, and a tension guide roller 138 is provided above the guide roller 137, and the bracket 135 is swing-adjusted with a tension bolt 139.

Note that the notch 140 is for avoiding interference between the inner end of the main frame and the bracket eye 35.

FIG. 22 shows another example of the front cutting device, in which the axis of the cutting tool 83 is not vertical, but is opened at the cutting start side, so that the cutting tool 83 and the wheel come into sliding contact at the cutting end side. This allows the wheel pawl to be smoothly introduced into the cutting tool 83.

The belt force bar 10 is attached to the pull-out belt 3A. To prevent leaves and stems from hanging down on the inner circumferential side of 3B and causing curling.

In the embodiments described above, when pulling out the crops S such as fresh grains, the crop S is pulled out by running on the low bed ridges in the orthogonal direction.

That is, when traveling forward with each part being driven, the pair of left and right scraping wheels 55 to 60 scrape the upper part of the stalk of the crop backwards, as shown in FIG. 3B, the pair of pulling belts 3A and 3B pinch the stalk of the crop from both left and right sides.

Before pinching the stem, the cutting tool 83 and the scraping wheel 56 cut the stem at a position below the frame 19.
The cut stem is released outward on the right side.

The stem with a bulb whose middle part has been cut is relatively fed to the pulling start end by the guide part of the mounting frame 88.

The pulling and marking device 3 then pulls out the crop upward while conveying the crop relatively backward at a speed synchronized with the traveling device 2.

That is, the crop S, which is growing upright and has its upper part cut off, is separated from the bulb by the front half of the pulling device 3, that is, between the auxiliary wheels 8 and the front wheel 28, and the bulb is removed near the center of gravity G. After pulling out the SA and completely pulling out the crop bulb SA in this way, the cutting device 127 at the rear end of the pulling belts 3A and 3Fl further cuts the stem, and then the stem rod is cut with a scraping wheel. Scrape it backwards and to the left.

When the unit including the cutting device is removed as shown in FIG. 18, the long stems that are not cut hit the front frame, pedestal, etc. and are subjected to conveying force, so they are bent.
It will be cut using the rear cutting device.

The center of gravity G of the aircraft 1st class is near the front wheels 28, and a large pulling force is required near this area.
Because of this relationship, it will be reliably supported by the traveling device 2.

Further, since the main frame 1l has windows 1l8 that allow the inside to be viewed from the side, the work status during transportation can be checked from the outside.

When traveling in the orthogonal direction on a low floor ridge, the front wheels 28 and rear wheels 29 of the traveling device 2 and the auxiliary wheels 8 in front of the
is held in a constant position approximately parallel to the field. That is, the front and rear wheels 28. 29 is in the offering position, the front and rear wheels 28 and 29 support the aircraft 1 even if the sleeve auxiliary wheels 8 are on the groove, and when the front wheels 28 are on the groove, the auxiliary wheels 8 and the rear wheels 29 support the aircraft 1.
Furthermore, when the rear wheels 29 are on the groove, the auxiliary wheels 8 and the front wheels 28 support the body 1. Therefore, the machine body 1 can be supported substantially parallel to the field regardless of the presence or absence of the groove.

(Effects of the Invention) The present invention is as described above, and the pair of left and right traveling devices 2 are provided at the lower part of the pair of left and right main frames 11, and are supported so as to be vertically swingable about the upper part between the main frames 11 as a fulcrum. A pedestal 19 is provided, and the extraction device 3 and the operating handle 41 are mounted on this pedestal 19.
and is provided with a connecting means 30 that allows the vertical movement of the pedestal 19 and fixes it. Therefore, in order to adjust the pulling height position of the pulling device, loosen the connecting means and operate the handle. Even when the load is supported by the device, the pedestal can swing up and down, making it easy to adjust the pull-out height position.

Also, during this adjustment, the load is supported by the traveling device, so
The adjustment operation is stable, and after adjustment, the connecting means can be fixed, and the position can be adjusted to suit the length of the crop.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall side view;
Fig. 2 is a plan view, and Fig. 3 is an elevational sectional view from the front.
FIG. 4 is a plan view showing the scraping device and the cutting device, FIG. 5 is a plan view of the scraping device, FIG. 6 is a rear view, and FIG. 7 is a bottom view showing the pulling belt and the rear cutting device. Fig. 8 is a sectional view taken along the line X-X of Fig. 7, Fig. 9 is a sectional view taken along the line Y-Y of Fig. 7,
FIG. 10 is a partially sectional side view showing the inside of the main frame, FIG. 11 is an elevational sectional view, and FIG. 12 is a side view showing the main frame portion.
Figure 13 is a Z-Z line arrow diagram in Figure 12, Figure 14 is a front view of the bracket for connecting the main frame and extraction device, Figure 15 is a side view, and Figure I6 is a stand for the harvester. FIG. 17 is a side view, FIG. 18 is a side view with the cutting unit etc. removed, FIG. 19 is an elevational sectional view of the front cutting tool, and FIG. 20 is a side view. Top view of the tension mechanism,
Fig. 2I is a sectional view, Fig. 22 is an elevational view showing another example of the front cutting tool, Fig. 23 is a plan view and side view showing the pawl of the scraping wheel, and Fig. 24 is a perspective view of the whole. 25 are plan views showing other examples of the rear cutting tool. DESCRIPTION OF SYMBOLS 1... Airframe, 2... Traveling device, 3... Extracting device, l1... Main frame, 19... Frame, 30... Connection means. Patent Applicant Kubota Iron Works Co., Ltd. Agent: Toshio Onda, Physician No. 6, Figure 12, Figure 1, Figure 13, Figure 14, Figure 15

Claims (1)

[Claims] (1) In a harvesting machine for ginger, etc., which is equipped with a pair of left and right running devices, a pulling device consisting of a pair of left and right pulling belts that pinch and transport crops such as ginger and pull them out backwards, and a control handle, The pair of left and right running devices (2) are provided at the bottom of the pair of left and right main frames (11), and the pair of left and right main frames (11)
A pedestal (19) supported so as to be able to swing up and down using the upper part of the space as a fulcrum.
The pedestal (19) is provided with a connecting means (30) that includes the extraction device (3) and the control handle (41), and allows the pedestal (19) to swing up and down and is fixed. A harvesting machine for ginger, etc., characterized by: