JPH03160915A - Raking device in harvester of ginger or the like - Google Patents

Abstract

PURPOSE:To readily pull out a raking device by equipping longitudinal shafts having a raking wheel with screw parts in the direction opposite to raking direction and attaching the longitudinal shafts to a transmission system of a pulling device with the screw parts. CONSTITUTION:A crop is raked by a pair of left and right raking wheels 55-61 of a raking device 62 laid at a starting side of a pair of left and right pulling belts 3A and 3B. In the operation, both the belts 3A and 3B and the wheels 55-61 are driven. Revolving force is transmitted to longitudinal shafts 67 and 68 having the raking wheels 58 and 61 without loosening screw because male screw parts 67A and 68A formed on the longitudinal shaft 67 and 68 are screwed into female screw parts of cylinder bosses 65 and 66 of transmission system of belt and screw parts 69 and 70 are made in a screw direction opposite to the raking direction. When the longitudinal shafts 67 and 68 having the wheels 58, 59, 60 and 61 in the raking device are pulled out from a pulling device, the longitudinal shaft can be simply puled out by so-called screw jack action by turning the longitudinal shafts in loosening direction.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a raking device for a harvesting machine that pulls out and harvests crops such as ginger 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 pull-out conveyor that supports and pulls the foliage upward, a force vine 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) In both of the above-mentioned prior arts 1 and 2, it is desirable to provide a device for scraping the crop on the starting end side of the pulling device so that it can be easily pinched by the pulling belt. For this reason, a vertical shaft having a scraping wheel is fitted into the cylinder boss from above and connected with a fixing bolt.

However, with this connection method, if it rusts or runs out of oil,
It was difficult to pull out the vertical shaft from the cylinder boss.

In particular, when a scraping device having a scraping wheel is heavy, it is very difficult to pull it out.

In view of the above circumstances, an object of the present invention is to facilitate the removal of a raking device having a raking wheel since rotational force in the raking direction cannot be transmitted to the wheel. .

(Means for Solving the Problems) The present invention provides a ginger extractor comprising a pair of left and right running devices and a pair of left and right pulling belts that pinch and transport a crop such as ginger to the rear while pulling it out. The above-mentioned purpose is achieved in a harvesting machine such as the above, in which a pair of right and left scraping wheels are provided on the starting end side of the pulling device so as to be rotatable in mutually raking directions around a vertical axis. The following technical measures have been taken to achieve this goal.

That is, the present invention is characterized in that the vertical shaft having the scraping wheel has a threaded portion in a direction opposite to the scraping direction, and is attached to the transmission system of the extraction device by the threaded portion. It is.

(Function) According to the present invention, the crop S is raked by the pair of left and right raking boilers 55 to 61 of the raking device 62 provided at the starting end side of the pair of left and right pulling belts 383B, and in this case , bells 1-3A, 3B and wheels 55-61 are both driven in the direction of arrow C in FIG.

A vertical shaft 66.67 with scraping wheels 56.57.58, 60.61 is connected to a cylindrical boss 65.67 which is a belt transmission system.
Male threaded portions 66A and 67A shaped like vertical shafts 66.67 are screwed into female threaded portions 65A and 66A of 66, and at this time, the threaded portions 69.70 are threaded in a direction opposite to the direction in which the screws are drawn. Because of this, the rotational force is transmitted without the screw loosening.

The wheel 56 in the scraping device 61 from the pulling device 3
．． 57. 58, 60.61 having a vertical axis 66.
When pulling out the screw 67, by enclosing the vertical shafts 66 and 67 in the loosening direction, it can be easily pulled out by a so-called screw-threading action.

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

3, 5, and 14 illustrate a harvesting machine for harvesting crops S in their raw form. A pulling device 3 consisting of a pair of traveling devices 2 and a pair of left and right pulling belts 3A and 3B that pull out the crop S while conveying it backwards.
and, respectively.

A driving means 6 consisting of an engine 4, a mission device 5, etc. is mounted on the upper part of the fuselage 1, and a space 7 penetrated in the front and rear direction is formed in the abdomen of the fuselage 1. A pull-out device 3 is housed in a substantially central portion (substantially toward the bottom) of 2, with the conveyance direction being the front-rear direction.

The traveling device 2 includes a pair of left and right auxiliary wheels 8 disposed in front of it, and also includes an engine 4, a power supply 9, a fuel tank 9A, and a pull belt 3A.
3B are each covered with a belt force bar 10,
The center of gravity G of the entire aircraft body 1 is set near the drive section of the traveling device 2.

The machine 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 pull-out belts 3A and 3B can be checked, and the main frames 11 are hollow inside. It also serves as a chain case (transmission case).

Inside the main frame 11, a driving sprocket 13 of the drive shaft 12 is arranged at the top of the main frame 11, and driven sprockets 6, 17 of the axle 14.15 are arranged at the front and rear tops, respectively. 16. A winding power transmission body 18, shown as a chain, is wound around the shaft 17.

A mount 1 for the driving means 6 is mounted at the top between the pair of left and right main frames 11.
9 is provided, and on this frame 19, the engine 4 is arranged at the front and the compression device W5 is arranged at the rear. A belt 22 is wrapped around the pulley 21,
The bonnesoto 9 that covers the engine 4 has a fulcrum shaft 2 at the front thereof.
The engine 4 can be opened and closed at will, and the closed position is secured by a stopper 24, making it easy to maintain the auxiliary components of the engine 4, such as plugs and carburetors.

The front part of the pedestal 19 is provided with a front frame 25 which is arch-shaped when viewed from the front and back and slopes 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, and the main frame 11 mount l9, the frame 25, the I frame 26, and the left and right frames 27 constitute the body l. The front frame 25 and the left and right frames 27 are connected by a pair of left and right turn bars 258.

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.
The drive shaft 12 is attached to the bearing case 11A on the outside of the main frame 11 and protrudes inward from the top of the main frame 11.
and is operatively connected to a transmission shaft in the transmission device 5 via a steering wheel.

A driving means 6 is connected to a pair of left and right main frames 11 in the fuselage 1.
The extracting device 3 is supported in a swing-like manner as shown by arrow A in FIG. Therefore, the pair of left and right front and rear legs in the main frame l1 and the left and right frames 27 have the first
They are connected by a connecting means 30 shown in FIGS. 6 to 18.

That is, the connecting means 30 connects the bracket 31 having the arc-shaped mounting hole 31A with the drive shaft 12 as the fulcrum, above and below the left and right frames 27, and between the front and rear legs 11 of the main frame 11.
B, fixed in a position opposite to IIG, while front and rear legs J
The mounting bolts 32 provided on the IB and IIC are inserted into the respective mounting holes 31A and fastened with nuts 33. Therefore, by loosening the fastening of the nasoto 33, swinging as indicated by arrow A is allowed, and after adjustment, the nasoto 33 is tightened to hold the adjustment position fixed.

In this way, when adjusting the pull-out height position, the amount of adjustment can be determined by markings 2 on the sides of the left and right frames 27 on the rear legs 11G.
By providing 7A, visual confirmation is possible.

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 by a support shaft 35 so that it can move up and down between a lowered position D, where the auxiliary wheels 8 support the machine body 1 together with the traveling device 2 substantially parallel to the field, and a raised position U, which is located above. It is attached to 25.

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. Here, it can be operated up and down, and furthermore, there are a pair of left and right operating levers 37, rondos 36, etc., and by moving either one of the operating levers 37 up and down, the auxiliary wheels 8
can be operated into a lowered position D and a raised position U.

Note that the swing arm 34 has a stopper 34A at the top,
This stopper 34A can come into contact with the rear part of the front frame 25, and prevents the auxiliary wheel 8 from encountering an obstacle or the like and causing the impact to bend the rod 36. 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 thalassocle lever 43. Note that 44 is a forward/reverse switching lever.

The belt cover 10 has a pair of left and right pull-out bells l-3A, 3B.
There are pairs of belt covers 10 on the left and right corresponding to the belt covers 10, and each belt cover 10 is attached to a pair of left and right frames 27 with bolts or the like.

The pulling belts 3^, 3B are for pulling out the stems of crops S such as ginger growing in the field from the field while pinching them from both left and right sides and conveying them backwards.
A and 3B are made of an elastic material such as rubber, and are wound around a driven pulley 45 at the front end and a driving pulley 46 at the rear, and are shown in FIG. It is guided by a large number of guide boots 947, and as a whole, as shown in FIG. 3, it is provided so as to be freely rotatable with a slight incline upwardly rearward.

Each pull-out bell}3A, 3B has three engagement protrusions 48 on the inner circumferential surface of the belt body and two engagement protrusions 48 on the outer circumferential surface at positions vertically offset from the center, as shown in FIGS. 7 and 8. Projection portion 49.
50, and the engaging protrusion 48 is connected to the pulleys 45, 46.
．． 47, and the protrusions 49 and 50 on the outer periphery of the pair of pull-out bells 3A and 38 are fitted with a slight gap between them at the opposing parts, that is, the crop supporting parts. They are designed to interlock.

Engagement protrusion 48 and protrusion 4 of both pull-out bells} 3A and 3B
9 and 50 are formed by integrally forming or separately forming a chevron-shaped member into the belt body, for example, by baking a V-belt onto a flat belt. The positional relationship between the engagement protrusion 48 and the protrusion part 49 in the sake cup is the same as that of the pull-out bell }3B,
The pull-out belts 3A and 3B have the same shape, and the pull-out belt 3B is wound around the pull-out belt 38 upside down.

The crop S supported between the two pull-out bells 3A and 3B is bent and held in a zigzag shape as shown in FIG. ,
The pull-out bell} 3A, receives a strong pull-out force by moving upward.

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, 3B from coming off 12, the pin shaft 52 is inclined so that the distance between the axes of the pin shaft 52 is wider on the upper surface side and narrower on the lower surface side, as shown in FIG. Further, the guide pulleys 47 are arranged in a staggered manner as shown in FIG. 6, so that when the stem S is supported by the pull-out belts 3A and 3B, elastic deformation in a wavy manner is facilitated.

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 62 having a pair of left and right scraping wheels 55, 56, 57.5B, 59, and 60.61 for scraping is provided.

As shown in FIG. 9, the scraping device 62 has a scraping wheel 55.59 mounted on each of the left and right driven pulleys 45 via cylinders 62^, 62B of different heights with bolts 63I64. Scraping wheel 55. The male threaded parts 67A, 68A formed on the lower end of the vertical shaft 67.68 are screwed into the female threaded parts 65A, 66A formed on the respective boss parts 65, 66 of the vertical shaft 67.68.

That is, as represented by the vertical shaft 67 in FIG. 8 is screwed in to connect the vertical shaft 67 to rotate around its axis, and in this case, the arrow C in FIGS. 2 and 3
The threaded portions 69.70 are threaded in the opposite direction to the rotational direction of the wheels 55.59, which rotate in the scraping direction.
．． 70 is made not to loosen. Here, the cylindrical body 62
A and 62B are transmission systems in the extraction device 3.

The vertical shafts 67, 68 are erected parallel to each other, and one of the vertical shafts 67, 68 has a scraping wheel 56,
57.58 with an interval in the vertical direction}71,7
2.73, and to the other vertical shaft 68, a scraping wheel 60.61 is attached with a stop bolt }74.75, and each scraping wheel 55 to 61 is mounted at an interval in the height direction. Moreover, the left and right wheels are offset in the height direction.

Therefore, the corresponding scraping wheels 5 on the left and right at the bottom
5.59 scraping pawls on the left and right in the middle stage, the scraping pawls on the corresponding scraping wheels 56 and 60 on the left and right in the middle row, the scraping pawls on the left and right scraping wheels 58 and 61 on the upper stage, and the scratching pawls provided on the vertical shaft 67. By rotating the stem S as shown by arrow C in FIG. 2 using the claw of the boiler 57,
It is possible to successively scrape toward the starting end of the extraction bell 1 of the extraction device 3.

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.

In addition, among the scraping wheels 55 to 61, the wheel 55
．． 58, 59.61 are both made of hard synthetic resin,
The wheels 56, 57 .
Reference numeral 60 is made of metal and has the same shape as the sprocket 1, and in the embodiment shown in FIG. In the embodiment shown in FIG. 4, each wheel pawl on the cutting tool 83 side is shaped to bite into the crop, and each wheel pawl on the other side is shaped to stroke the crop. In other words, the crop S is prevented from separating from the cutting tool 83.

In addition, 76A and 76B are discun colors,
While maintaining the vertical distance between the wheels, the vertical axes 67, 6
It is loosely fitted onto the vertical shaft 67.68 to prevent crops etc. from becoming entangled with the vertical shaft 67.68 due to the rotation of the shaft 8.

As shown in FIG. 2, 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 fuselage 1 side and the boss 80 of the mounting frame 77, and can be attached and detached by respective stop bolts 8L82.

The mounting frame 77 is approximately V-shaped in plan view,
A vertical shaft 6768 with a cutting tool 83 and scraping wheels 56-58 and 60-6l is attached to this mounting frame 77.
are provided, and the vertical shafts 67, 68 are supported by bearings 84, 85 at the distal end of the mounting frame 77.

The mounting frame 77 has guide portions 86. to guide the stems scraped by the scraping device to the supporting starting ends of the extraction bells }3A, 3B. 87.

16 The cutting tool 83 consists of two upper and lower disk force covers 91 and 92, which are arranged to be shifted to the right in the embodiment from the drawing center line T, -L, and have a cutting edge 83A on the outer periphery of the disk. have.

The disc canter 9L92 in the cutting tool 83 is fixed to a support shaft 89, as shown in FIG. 9, and the support shaft 89 is rotatably attached to the arm 88 of the mounting frame 77 via a bearing device 90. There is.

As shown in Fig. 2 and Fig. 9, the supporting shaft or cassotater shaft 8
9 is driven by a belt transmission device 93 in the direction of arrow E in FIG.
3B and a belt 93C wrapped around both pulleys, the pulley U93B has a smaller diameter than the pulley 93A, allowing the cutter shaft 89 to rotate at high speed.

The cutting portions 94 and 95 of the cutting tool 83 have two stages, upper and lower,
It is located in front of the pull-out start end 96 of the pull-out belts 38, 3B, and the stem S is cut before supporting the pull-out belt stem.

17 The cutting portions 94.95 are formed by the cutting edge 83A of the cutting tool 83 and the scraping wheel 56. The lower cutting portion 94 is located above the starting end of the extraction device 3, below the pedestal 19, and the upper cutting portion 95 is located above the cutting portion 94. are located coaxially.

The claws 56A and 578 of the wheels 56 and 57 are adapted to push the stem S into the cut portion 94.95, and the upper surfaces of the claws 56A and 57A are in sliding contact with the lower surface of the outer periphery of the disc cassota 91.92. There is.

Therefore, the stem S that has been scraped and pushed in by the wheels 56, 57 is cut into two stages, upper and lower, in cooperation with the disc cassota 91, 92, and the cut stem is supported on the right side in the figure and can be released. There is.

Further, as shown in FIG. 2, a cutting arrow part 96 is formed in the part of the arm 88 corresponding to the lower cutting part 94, so that the lower part is opened until the cutting of the stem is completed, and the cutting part of the crop (stem) is cut. 94 and enables complete cutting.

Reference numeral 96 denotes a stem guide device, in which a bottom plate 97 covering the upper surface of the disk forceter 91 is fixed onto the mounting frame 77 via a stay 98, and a stem guide device 96 is provided with a stem guide device located between the scraping wheels 6061 on the bottom plate 97. A first guide plate 99 that covers the vertical shaft 68 is provided upright, and the shape of this first guide plate 99 is maintained by a floor plate 97. As shown in FIG. The cutting portion 9 has a guide portion 99B which is a curved portion 99A at the frontmost end and is sloped rearward on the right side of this portion.
4. 95 and extends toward the scraping wheel 59
6l are exposed from the curved portion 998, and the outer peripheral edges of the scraping wheels 55 to 58 are connected to the guide portion 99B in plan view.
The stem is wrapped with a raking device, and the stem is raked and guided to the right.

A second guide plate 100 is disposed above the first guide plate 99 and above the wheel 61, and this second guide plate 100 has a curved portion 10 that has substantially the same shape as the first guide plate 99 in plan view.
0A and a guide portion 100B, and is attached by a stay 101.

Wheels 56.57 and 57.5 in scraping devices
Between 8 and 8, a 19th guide plate 102 which is approximately oval in plan view and surrounds the outer periphery of the vertical shaft 67 is provided. and here, the first
・Curved portion 99A, IOOA of 2 guide plates 99, 100
and the curved portion 1028 of the third guide plate 102 form a first guide path 103 whose scraping starting end is open at the front and tapered at the rear, leading to the cutting portion 94 . A second guide passage 10 is bent toward 95 and expands outward from the cut portion 94.95.
3A, and at the bottom of this second guide passage 103^,
The ejection shoe 1-104 is bolted to the mounting frame 77 in a downwardly sloping manner.

A pair of left and right dividers 105 are made by bending a bar into a triangular shape when viewed from the side.The upper ends of the dividers 105 are removably attached to the left and right bosses 106 of the mounting frame 77, and the lower ends are attached to the left and right bosses 107 of the left and right frames. It is removably attached to and fixed with a set screw 108.

Here, the cutting odor, raking device, and stem guide device are made into a UNISO port 09 as shown in Fig. 13, and are detachable as a unit 20, leaving the lower wheels 55 and 59 of the raking device. has been done.

This unit 109 can be attached or detached by pulling out the connecting shaft 78.
Release the connection between the fuselage l and the mounting frame 77, and remove the vertical shaft 67.
．． By loosening the threaded portions 69 and 70 of the divider 68 and removing the setscrew 108 of the divider, it is removed as shown in FIG. 13, and installation is performed in reverse order.

In this way, by removing the Uniso port 09 that includes the cutting tool 83, it becomes easier to load the collected filtrate into a wagon etc., and the storage space becomes more advantageous. Some crops have low yields, and this is to adapt to pull-harvesting of crops with low yields.

In FIG. 5, the drive pulley 46 is located near the rear wheel, and as shown in FIGS. 5, 10, and 11,
A vertical transmission shaft 110, 111 is connected to both ends of the output shaft of the ξSotion device via a bevel gear mechanism, and is attached to the lower end of the transmission shaft 110, 111.
12 and 113 are loosely fitted.

Therefore, as the drive pulley 46 rotates in the direction of arrow G in FIG. 11, the pull-out belts 3A, 3B are rotated in the direction of arrow 1 in FIG.

Among the transmission shafts 110 and 111, two upper and lower scraping wheels 114 and 115 are attached to the left transmission shaft 111, and these wheels 114 and 115 are approximately sprocket-shaped, and the outer pawls of the wheels 114 and 115 are approximately sprocket-shaped. The tip is positioned close to the supporting surface (pulling center line) of the pulling belt.

The upper and lower scraping wheels 114 and 115 have the same shape and are made of sheet metal, and above the wheel 114 is provided a guide member 116 made of a wire whose one end is connected to the rear frame.

The guide member 116 is attached to the bottom of the claws of the scraping wheels 114 and 115 in plan view, and the latter half thereof extends outward perpendicularly to the working direction, and the main frame 11 at the rear wheel.
It ends near the inside of .

Reference numeral 117 denotes a scraping chute, which discharges the cut stems together with the scraping wheels 114, 115, the guide member 116, and the guide plate 118 to the inside of the rear wheel. An L-shaped stay 119 is attached, and is attached to this stay 119 with bolts 22.

In FIG. 6, 120 is a rear cutting device, and a straight blade 122A,
A pair of flat cutting tools 122, 123 having 123A
are detachably attached so that the straight blades are in the shape of a bevel ξ, the straight blades intersect in the middle, and this intersection is located on the drawing center line.

Therefore, the middle part of the stem and leaves is cut into two stages, upper and lower, using the cutting tool 83 described above, and the stem with the bulbous part is pulled out.
In the process of being conveyed backward while being pulled out at B, the cutting device 1
The bulb is shredded again by the straight blade 20, and the pulled out bulb is dropped, and the stem supported by the pulling bells 3A and 3B is discharged to the left through the chute 117 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 part to the right and the middle part to the left.

Due to the cutting resistance of the flat cutting tools 122 and 123, the pull-out bells 3A and 3B cause a so-called opening 23 phenomenon in the expansion direction, but in order to prevent this, the cutting tools 122
, 123, the pair of left and right support frames 51 are connected to each other by a connecting member 125 and a fastener 126.

In FIGS. 3, 5, and 12, 127 is a shaft that connects the left and right main frames l1 with each other,
By providing 7, the extraction bells of the extraction device 3} 3A, 3B
This prevents the person from opening his/her mouth.

By providing a threaded portion with a nant 128 at one end of the connecting shaft 127, the trend of the traveling device 2 can be adjusted, and the port 32 of the connecting means 30 explained in FIGS. 16 to 18 can be made longer. The left and right main frames 11 may be connected to each other instead.

FIG. 19 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 prevents leaves and stems from hanging down on the inner circumferential side of the pulling heel I-34, 3B and causing entrainment.

24 In the above embodiments, when the crop S such as ginger is pulled out, it is carried out by running on the low bed ridge in the orthogonal direction.

That is, when the machine moves forward with each part being driven, the pair of left and right scraping wheels 55 to 61 scrape the upper part of the stalk of the crop backward, and the pair of left and right pulling wheels on the rear side 3A, 3B
Since the pair of extraction bells 1, 3A and 3B sandwich the stalk of the crop from both left and right sides.

Before pinching this stem, insert the upper and lower two cassocks 9L of the cutting tool 83.
92 and scraping wheel 56. 57, the stem is cut at a position slightly below the pedestal 19 and above the bottom plate 97, and the cut stem is discharged outward to the right.

The stem with the bulb, which has been cut in the middle, is attached to the mounting frame 88.
It is fed relatively to the drawing start end by the guide section of.

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

That is, the crop S, which is growing upright and whose upper part has been cut off, is removed by the front half of the pulling device, that is, the auxiliary wheel 8 and the front wheel 2.
8, and then pull out the bulb SA so that it floats above the field near the center of gravity G. After pulling out the crop bulb S8 in this way, the pulling bells L-3A and 3B are used. A cutting device 120 at the rear end further cuts the stem, and a scraping wheel 114115 scrapes out the stem rod to the rear and left.

When the unit 109 including the cutting device 83 is removed as shown in FIG. 13, the uncut stems hit the front frame 25, the pedestal 19, etc. and are subjected to a conveying force, so they are bent and moved to the rear. It will be cut by the cutting device 120.

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 11 has a window 11A through which the inside can 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
The plant is held in a constant position approximately parallel to the field. That is, when the front and rear wheels 28,29 are in the free position, the front and rear wheels 28,29 support the aircraft 1 even if the 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 are supported. The body 1 is supported by the auxiliary wheels 8 and the front wheels 28 when the rear wheels 29 are on the groove. Therefore, the body 1 can be supported substantially parallel to the field regardless of the presence or absence of the groove.

In addition, since the center of gravity G of the entire machine body 1 is located near the top of the front wheels 28, it is sufficient to lift the handle 41 lightly and support it freely, which reduces the burden on the operator.

Considering the above, the design can be changed as follows.

■Disc cassota 91 or 92 should be either one.

- The disc cassator 92 is omitted and the wheel 57 is provided as is.

■All wheels 55-6L should be made of resin.

■The disc cassota 91 and 92 should be rotated by cutting resistance without being forced to drive.

(Effects of the Invention) The present invention provides the above ii! lj9, and the vertical shaft having the scraping wheel has a 27 threaded portion in directions opposite to the scraping direction, and is attached to the transmission system of the extraction device by the threaded portion. When raking crops with a raking device that has wheels, the threaded part is tightened and will not loosen, and if the vertical axis is surrounded as the direction in which the threaded part is loosened, the principle of raking can be easily applied even when handling heavy objects. It can be removed with

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is an elevational cross-sectional view of the main part, FIGS. 2 and 4 are plan views showing two examples, FIG. 3 is a side view of the whole, and FIG. The figure is a plan view of the entire structure, Figure 6 is a bottom view showing the pull-out belt and rear cutting device, and Figure 7 is a bottom view of the
Figure 8 is a cross-sectional view taken along the line Y-Y in Figure 6, Figure 9 is a front elevational view of the pre-processing section, Figure 10 is a rear view showing the post-processing section, and Figure 1l. is also a plan view, Figure 12 is a rear view of the whole, Figure 13 is a side view when the cutting unit etc. is removed, Figure 14 is a perspective view of the whole, Figure 15 is a side view showing the main frame part, Figure 16 is a 2-2 sectional view of Figure 15,
Figure 18 is a front view and a side view of the connecting bracket, 2
8 FIG. 19 is an elevational view showing another example of the cutting tool. 1... Airframe, 2... Traveling device, 3... Extracting device,
55-61... Scraping wheel, 62... Scraping device, 67.68... Vertical shaft, 69.70... Threaded portion. Patent applicant Kubota Iron Works Co., Ltd. 8 people [

Claims (1)

[Claims] (1) A harvesting machine for ginger, etc., which is equipped with a pair of left and right traveling devices and a pulling device consisting of a pair of left and right pulling belts that pinch and transport the ginger or other crop backwards while pulling it out, the pulling device comprising: In a scraping device in which a pair of left and right scraping wheels are provided at the starting end side of the device so as to be rotatable with respect to each other around a vertical axis in a scraping direction, the vertical shaft having the scraping wheels has a screw thread in a direction opposite to the scraping direction. 1. A raking device for a harvester for harvesting ginger, etc., characterized in that the raking device has a threaded portion and is attached to a transmission system of a pulling device by the threaded portion.