JP2001299039A - Residual trunk treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a residual trunk treatment apparatus having such advantages that, since a residual trunk is gradually cut from the top by a cutting device composed of rotary blades and receiving blades with the root of the upright residual trunk T left intact in soil, there occurs no vertical movement of the upright residual trunk T when cut and therefore it can easily be cut with nearly horizontal cut surface, thus even if a relevant worker steps cut residual trunk underfoot during walking in the farming field for after-work, there is seldom risk of residual cut surface's piercing his foot through the sole of his shoe because the cut surface is not sharp-pointed. SOLUTION: This residual trunk treatment apparatus 24 is so designed as to enclose the outer periphery of a cutting device 61 with a cover 3 so as to form an opening 4 ahead, wherein the cutting device 61 has rotary blades 2, 2... in tiers at appropriate intervals axially on a vertical rotating shaft 1 and the corresponding receiving blades 6, 6... facing thereagainst, respectively. The apparatus 24 is characterized by being mounted in a forwardly inclined posture in the front of a mobile farming machine 17 so that the upper end of the rotating shaft 1 is forwardly inclined.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a stem processing apparatus for cutting stems such as tobacco and plants.

[0002]

2. Description of the Related Art A conventional trunk cutting apparatus for tobacco and the like is disclosed in Japanese Patent Application Laid-Open No. H11-155305 and Japanese Patent Application Laid-Open No. H11-187744.
There is one shown in Japanese Patent Application Laid-Open Publication No. H10-210, which is configured as follows.
In other words, the remaining trunk standing upright on the ground surface is firstly pulled out by a pulling machine such as a holding belt attached to the fuselage over a long range extending from the front to the side of the fuselage, or a pulling trill or a rotary blade. After that, it was transported to a cutting machine at the rear of the machine and cut into short lengths, and the cut remaining stem was stored in a storage container.

[0003]

The conventional apparatus is constructed as described above, and is provided with a trunk extraction device from the front of the tractor to the side of the tractor and a cutting machine at the rear of the tractor. The overall length of the vehicle becomes longer and the body width becomes wider, which makes the driving operation troublesome. In addition, when the container for storing the cut stem is small, the efficiency of the remaining stem processing work is poor, such as replacing the container many times or disposing of the stem in another place.

[0004] When a cutting device is attached to the front of the fuselage to cut the remaining stem directly and travel, it is easy to cut the remaining stem from the root and run. In order to cut the remaining stem into a plurality of pieces, the remaining stem must be cut sequentially from the tip, and a complicated configuration is required, such as gradually reducing the turning radius of the cutting blade from top to bottom.

[0005]

SUMMARY OF THE INVENTION The present invention is to solve such a problem of the conventional device, and has taken the following technical means. That is, according to the first aspect of the present invention, the rotating blades 2, 2,... Provided at a plurality of stages on the vertical rotating shaft 1 at appropriate intervals in the axial direction are provided. . , Receiving blades 6 and 6 respectively facing the rotary blade 2. . A cutting device 61 comprising:
The remaining stem treatment device 24 surrounding the outer periphery of the cutting device 61 with the cover 3 so as to form the opening 4 in the front is attached to the movable agricultural machine 17 in a forwardly inclined position such that the upper end of the rotating shaft 1 is inclined forward. The remaining trunk processing apparatus is characterized in that:

According to a second aspect of the present invention, there is provided the remaining stem processing apparatus according to the first aspect, wherein the forward tilting posture of the cutting device 61 is adjustable. The invention according to claim 3 is
Rotary blade 2, 2 of cutting device 61 . The number of attachment stages is increased or decreased, and the structure of the trunk processing apparatus according to claim 1 or 2 is provided.

According to a fourth aspect of the present invention, a pair of left and right remaining trunk entrance guide plates 54 are provided in a substantially upper half of the opening 4 so as to protrude forward, and the left and right guide plates 54, 5 are provided.
A sensor 77 for detecting the presence or absence of an upright remaining stem T is provided between the four units.

[0008]

First, the operation of the invention according to the first aspect will be described. The remaining stem processing device 24 is mounted in front of the mobile agricultural machine 17 and moves with the advance of the mobile agricultural machine 17.
When the upright residual trunk T on the ground relatively coming from the front opening 4 of the cover 3 due to the forward movement of the cover 3 approaches the rotating shaft 1 mounted in the forwardly inclined posture, the rotating shaft 1 By the cutting device 61 constituted by the provided rotary blade 2 and the receiving blade 6, the upright remaining trunk T is cut into a plurality of short pieces from the upper end portion and falls downward. At this time, since the upright remaining trunk T that vegetates with the lower end in the soil does not move in the vertical direction, the trunk portion of the upright remaining trunk T above the root can be easily cut into a plurality of pieces in a substantially horizontal direction. The remaining stem root of the upright remaining stem T which is lower than the lowermost rotary blade 2 of the remaining stem treatment device 24 remains in the soil. Then, when the mobile agricultural machine 17 moves forward, the remaining trunk processing device 24 advances toward the next upright residual trunk T that is vegetated forward.

According to the first aspect of the present invention, since the above-described configuration is employed, the following technically unique effects are exhibited. That is, while the root portion of the upright remnant stem T which is lower than the remnant stem processing device 24 is left in the soil as it is, the remnant stem portion is gradually cut from above by the cutting device 61 constituted by the rotary blade 2 and the receiving blade 6. Therefore, it is possible to easily cut as a substantially horizontal cut surface without vertical movement of the upright remaining trunk T at the time of cutting,
Even when the worker steps on the remnant stem cut while walking in the field as a post-work, the cut surface is not sharp and the danger of the remnant stem cut surface sticking to the foot from the shoe sole hardly occurs.

According to the second aspect of the present invention, since the forward tilting posture of the cutting device 61 can be adjusted, the cutting length of the upright remaining trunk T can be shortened by increasing the forward tilting angle. In other words, by changing the forward tilting posture of the cutting device 61, it is possible to easily change the cutting length of the remaining trunk in accordance with the subsequent operation of using the field in the paddy field or in the field.

The invention according to a third aspect is directed to the rotary blades 2, 2,. . By increasing or decreasing the number of mounting stages,
The cutting length of the upright remaining stem T can be changed in length. According to the fourth aspect of the present invention, a pair of left and right remaining stem entrance guide plates 54 are provided in a substantially upper half portion of the opening 4 so as to protrude forward, and stand upright between the left and right guide plates 54. Trunk T
Since the sensor 77 is provided to detect the presence or absence of the upright trunk T, the sensor 77 can be used for the control based on the presence or absence of the upright remaining trunk T, for example, the rotation control of the cutting device 61, the traveling speed control of the mobile agricultural machine 17, and the traveling steering control.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. This embodiment relates to a remnant stem processing apparatus for cutting and discharging a trunk such as a plant of another thin branch, mainly using the remnant trunk of tobacco, and its contents will be described below.

First, the overall layout structure will be described. In the illustrated example, the mobile agricultural machine 17 is a four-wheel agricultural tractor having front and rear wheels 18, 19, but may be a walking type two-wheel walking tractor (not shown). The entire configuration will be described with reference to the drawing. A front frame 21 protrudes forward below a tractor side engine 20 which is a mobile agricultural machine 17, and a front hitch 22 which is a frame is provided at the protruding front end. Have been. The lower part of the stem processing device 24 is attached to the front end of the front hitch 22 in a tilted forward posture such that the upper end of the device is in the front position in the illustrated example. A rotary tillage device 23 is attached to the rear part of the mobile agricultural machine 17.

An engine 14, which is a driving source of the stem processing device 24, is mounted on the upper part of the stem processing device 24. The engine 24 is independent of the engine 20 of the mobile agricultural machine 17 independently. It can be driven or stopped. Then, the cutting operation will be described with the remaining stem from which the tobacco leaves have been removed. An arrow of the moving agricultural machine 17 running across the ridge on the upright remaining stem T vegetated at intervals on the ridge M along the direction of the ridge. F
It is cut to a length of about 12.5 cm to 25 cm by advancing in the direction, and the cut stem portion falls downward. The remaining stem root 63 remaining on the ridge M and the portion of the cut stem S dropped and scattered in the vicinity of the ridge M are buried in the excavated soil D by the drive tilling operation of the rotary tilling device 23 attached to the rear part of the mobile agricultural machine 17.

Next, the remaining trunk processing device 24 will be specifically described. In the illustrated example, the remnant stem processing device 24 inclines the rotating shaft 1 in the vertical direction in a side view so that the upper end is inclined forward by about a predetermined angle of about 15 degrees. The details will be described later. As shown in the figure, the actuator 79 can swing back and forth largely up to about 45 degrees. This rotating shaft 1 is vertically shifted by a predetermined distance, for example, 4
Attachment plates 25 are attached at intervals of about seven to seven steps, and one or two rotary blades 2 are attached to the attachment plate 25 so as to protrude from the peripheral edge of the attachment plate 25.

A cutting device 61 shown in FIG. 9 has a flat disk-shaped mounting plate 25 having a special shape, which will be described below. As shown in FIGS. 9 and 10, the specially shaped mounting plate 25a
When the rotary blades 2 and 2 can be attached in the left and right directions, respectively, the left and right intermediate portions are shaped to have a step 25b in the axial direction of the rotary shaft 1 so that the mounting position of the rotary blade 2 can be changed in height. That is, when the rotary blade 2 is mounted at the position of the left mounting plate 25c, the mounting plate has four stages in the vertical direction in the illustrated example, and when the rotary blade 2 at the position 25d at the right mounting plate is mounted, five stages of vertical mounting in the illustrated example. Plates can be configured. In the example shown,
A pair of right and left rotary blades 2 and 2 may be attached to the mounting plates 25 at the upper and lower ends, but the other two intermediate mounting plates 25 and 25a are provided with the rotary blades 2 attached to only one of the right and left. Set the number of steps in the direction. With this configuration, the cutting dimension of the upright remaining trunk T can be changed in length.

The upper and lower portions of the rotary shaft 1 are rotatably supported by bearings 28 provided on the ceiling plate 26 and the lower bearing portion 65, respectively. The detailed configuration around the lower bearing portion 65 will be described later. Ceiling plate 26 and lower bearing 6
Left and right rear struts 29, 29 are provided between the upper and lower ends of the remnant stem treatment device 24 at the rear side portions of the pair 5, and a pair of left and right protruding front portions are respectively formed at the small diameter portions at the upper ends. The upper pipes 31 of the upper supporting frames 30, 30 are detachably attached and detachably assembled. Also, at the lower end of the rear support 29,
The rear frame bases of the pair of left and right lower support frames 32, 32 projecting forward, respectively, are integrally attached by welding or the like to form a main frame 67.
Is composed.

The upper supporting frames 30, 30 are attached to the upper left and right ends in the width direction on the upper surface of the ceiling plate 26, and serve as upper supporting frames for supporting the upper end of the trunk processing unit 24.
The upper part between the left and right upper supporting frames 30 is a left and right connecting plate 40.
As described above, the vertical engine 14 is mounted on the left and right connecting plate 40 for independently driving the device, and the engine driving force is attached to the output shaft 34 projecting downward. Through the centrifugal clutch 35
Lower drive gear 36 and side driven gear 3 meshing therewith
7, the driving force is transmitted to the rotating shaft 1. The driven gear 37 is a rotating shaft 1 that projects upward from the ceiling plate 26.
Attached to the upper end of the

Next, the lower supporting frame of the trunk processing unit 24 will be described. As described above, right and left rear supports 29, 29 are provided between the upper and lower ends at the back of the trunk processing device 24, and at the lower end, a pair of left and right lower protruding frontward is provided. The rear ends of the support frames 32, 32 are integrally welded. The left and right lower supporting frames 32, 32
A space portion is formed between the left and right inner sides, and when the remnant stem treatment device 24 moves forward in the space portion, the remnant stem root 63 part after the cutting of the trunk of the upright remnant T planted on the ground is not caught. There are 64 passage spaces that can move. The lower supporting frames 32 are connected to each other by a connecting supporting plate 68 at a position where the lower supporting frames 32 do not come into contact with the rear of the rotation locus of the rotary blade 2. The connecting support plate 68 is a standing wall plate formed by bending a flat plate into a U-shape when viewed from the side. The lower edge portion 68b is attached to the upper surface of the lower support frame 32, and a passage space 64 provided below the center in the left-right direction. It has a ceiling. The lower edge 68b in the illustrated example is a substantially linear edge in the horizontal direction. When the middle portion in the left-right direction of the lower edge portion 68b is recessed upward, the ceiling of the passage space 64 can be easily raised, and the remaining trunk processing device 2
Even if 4 is upright, a non-contact gap at the time of movement can be provided between the cut surface of the remaining stem root 63 and the lower edge 68b.

In the illustrated example, the lower bearing 65 is provided around the rotary shaft 1 between the first and second mounting plates 25, 25 from below, and is disposed above the lower bearing 65 and the connecting support plate 68. The front and rear sides of the edge 68a are connected to each other by a support frame 66 to support the lower portion of the rotary shaft 1 to form a lower support frame. The bearing 28 is provided in the lower bearing 65 and rotatably supports the lower small diameter portion 69 of the rotating shaft 1. A lower angular shaft 72 of the rotating shaft 1 projects downward from the lower bearing portion 65, and the lower angular shaft 7 having a hexagonal cross section is provided.
2, a spacer 70 of an internal hexagonal cylinder having a mounting plate 25 at the lower end is inserted and fixed with nuts 71, 71.

An upper reinforcing plate 73 is an L-shaped reinforcing plate attached between the front surfaces of the left and right ends of the connecting support plate 68 and the upper surface of the lower support frame 32. 74 is a lower reinforcing plate,
It is a reinforcing plate attached to the lower part of the lower supporting frame 32 in the front-rear direction below the connecting supporting plate 68. A sled-shaped ground plate 75 is attached to the front end of the lower support frame 32. In the example shown,
Although the lower support frame 32 is provided as a pair of left and right sides, it is sufficient that at least one side is provided.

As described above, the trunk processing unit 24
Are supported by left and right rear supports 29, 29 standing upright at the rear of the apparatus, upper support frames 30, 30, a support frame 66, a connecting support plate 68, and the like. In the vertical middle part of the rear support 29,
A left and right connecting frame 41 for integrally connecting the left and right rear supports 29, 29 is provided. The left and right connecting frames 41 are formed by inserting hollow pipes 42, 42 welded and integrated at both ends into the rear support 29, and restricting the vertical movement by a locking tool 43 such as a bolt or a roll pin. The left and right connecting frame 41 is provided with a metal fitting 44 projecting rearward at a central portion in the left and right direction, and a shaft 45 of an operation handle described later is attached to the metal fitting 44 so that it cannot be moved in the vertical direction and can be freely rotated in the rotation direction. ing.

A movable pipe 4 slidable in the up-down direction is provided on rear posts 29, 29 between the left and right connecting frame 41 and the lower supporting frame 32.
The left and right moving pipes 46, 46 are connected to each other by a main mounting frame 47. The main mounting frame 47 is formed by bending an iron plate into a substantially L-shape when viewed from the side. The upper flat surface portion 47a is welded and integrated with the moving pipe 46, and the shaft 78 at the lower end of the vertical wall 47b is connected to the front hitch 22 of the body 12 by the welding. Is mounted to be able to swing back and forth. Reference numeral 49 denotes a reinforcing plate, which is an iron plate for connecting and reinforcing the upper plane portion 47a, the standing wall 47b, and the moving pipe 46 in the front-rear direction by welding or the like.

At the middle of the main mounting frame 47 in the left-right direction, a screw hole metal fitting 51 for inserting the above-mentioned telescopic screw 52 below the handle shaft 45 is integrally provided. An actuator 79, which is a hydraulic cylinder, is attached to the screw hole fitting 51 and the front hitch 22 ring, so that the remnant stem processing device 24 can be adjusted to swing back and forth. When the expansion screw 52 is rotated after attaching the main mounting frame 47 to the shaft 78 of the front hitch 22 of the mobile agricultural machine 17, the main mounting frame 47 does not move up and down.
9 and 29 are moved up and down, and the
The mounting height can be adjusted in the vertical direction with the expansion screw 52.

Next, the cutting mechanism for cutting the remaining stem, the side cover for covering the outer periphery thereof, and the like will be specifically described. Upper and lower bearings 28, 2 of the ceiling plate 26 and the lower bearing 65
As described above, the rotating shaft 1 that is supported by the shaft 8 is configured such that, as described above, the upper end of the shaft is inclined forward by about 15 degrees in the vertical and vertical directions when viewed from the side. The rotating shaft 1 is vertically shifted at substantially equal intervals of about 125 mm to 250 mm.
The mounting plate 25 is attached to about 7 steps, and one or two rotary blades 2 and 2 are respectively attached to the mounting plate 25 so that they protrude outward from the peripheral edge of the mounting plate 25. It is detachably attached via a fastening tool 38 such as a screw. The rotary blade 2 has blade portions 2a on the rotation front side and the rotation rear side, and can be used upside down when one blade portion 2a is worn. The blade portion 2a has a receding angle of about 30 degrees, and has a substantially isosceles triangular shape at the tip end in plan view. A cover 3 is mounted around the rotary shaft 1 with the rotary blade 2 at a position where the rotary blade 2 does not come into contact during driving rotation.

A front opening 4 is opened at the front of the cover 3 so that the upright remaining trunk T is fed by the advance of the moving agricultural machine 17, and when the rotating shaft 1 rotates in the direction of arrow A,
One side of the left side and the rotary blade 2, 2,. . An opening of the side opening 5 is opened at the lower side of the rotation, and an outlet of the side opening 5 is formed in the side opening 5 by a side cover 7 whose wall surface is gradually increased outward from the upper end to the lower end. Cover the part. The side cover 7 has a U-shaped cross section in plan view, and includes front and rear guide standing walls 7a, 7a and side inclined guide walls 7b.
At the lower end of the side cover 7, a discharge port 8 having a U-shape in a plan view is provided. An elastic body 9 of a rubber plate is attached to the inner surface of the lateral inclined guide wall 7b. ing. In the illustrated example, the rubber plate is a flat rubber plate, but may be a foamed rubber plate such as a sponge or a flat plate made of a soft resin agent or the like. . In addition, the front and rear guide standing walls 7a,
The elastic member 9 of a plate shape or a plurality of divided plate members or protrusions may be provided on the 7a.

On the lower side in the rotational direction near the front opening 4 of the cover 3, a vertical front support 39 is disposed between the ceiling plate 26 and the lower support frame 32, and the front support 39 has a rotating shaft. 1
A lower-opening U-shaped blade fixing plate 53 for mounting the receiving blade 6 corresponding to the mounting plate 25 at substantially the same height as the mounting plate 25 is integrally mounted by welding or the like. The receiving blade 6 is similarly fastened to the blade fixing plate 53 by fastening tools 38 and 3 such as bolts and screws.
8 detachably attached. The receiving blade 6 is also formed as a blade portion 6a having a receding angle of about 30 degrees before and after the rotation, and is used by reversing when one side is worn. This rotary blade 2
If the receiving blade 6 and the receiving blade 6 are made of the same component, the assembly can be simply reversed upside down and the cost can be reduced. The upright remaining stem T is cut by being sandwiched by a cutting device 61 including a blade portion 2a of the rotary blade 2 and a blade portion 6a of the receiving blade 6.

Above the front opening 4 of the cover 3, remaining trunk entrance guide plates 54, 54 for guiding the upper portion of the upright remaining trunk T to the front opening 4 when the movable agricultural machine 17 moves forward, are formed in an eight-character shape having a wide distal end. A pair of right and left, round head screws 55, 55 are attached. The remaining trunk entrance guide plate 54 is １ ／ of the height of the apparatus.
And the front edge 60 thereof is substantially vertical when the apparatus is mounted as shown in the figure, so that the upright remaining trunk T can be easily guided. A pair of left and right sensors 77 are attached to the remaining trunk entrance guide plate 54 to detect whether or not the upright remaining trunk T exists between the sensors 77, 77, and inform a CPU (not shown), for example. It can be easily used for the rotation control of the cutting device 61, the traveling speed control of the mobile agricultural machine 17, the traveling steering control, and the like.

An inner guide 5 is provided on the right side of the front opening 4.
6 extend in a substantially extending direction of the entrance guide plate 54 in plan view. The two inner guides 56 are provided at the middle part in the vertical direction of the mounting plates 25, 25 from the top in the side view, and can easily guide the upper part of the upright remaining trunk T to the vicinity of the rotary blade 2. it can. As described above, the inner guide 56 on the upstream side immediately before the rotation direction of the cutting device 61 rebounds inward on the back side when the uncut stem is rotated, and the uncut stem remains from the front opening 4. It can also be prevented from jumping forward. As a result, it is possible to drop the remaining cutting stem which is scattered far from the upper part of the apparatus downward in the apparatus.

The right outer standing wall 3 which is the cover 3 of the front opening 4
c The front end is lightened as a monocoque configuration in which the cover plate is formed in a box shape. As described above, the left side wall is reinforced up and down by the front column 39, and only the entrance is the left inner standing wall 3
a. Reference numeral 3b denotes a right inner standing wall having a right monocoque configuration, which is a curved standing wall centered on the rotation axis 1.

As shown in the figure, a lower cover 11 is provided below the right outer standing wall 3c of the cover 3 and has a lower end opening outward with the upper hinge 10 in the front-rear direction as a center. The front and rear walls 11a and 11b of the upper cover 11 are bent in a U-shape in plan view, and the rear wall 11b is fixed to the rear wall of the cover 3 by a fixing knob 57. That is, on the rear wall 11b,
A long hole 11c is opened centering on the hinge 10,
By adjusting the opening / closing position of the fixing knob 57, the opening size of the lower end of the good cover 11 is adjusted by opening / closing. It can be closed when there is no rotation of the cutting stem.

Below the front opening 4 of the cover 3, FIG.
As shown in FIG. 4, a pair of right and left guide rods 76 are attached in a front-spread state. The guide rod guides the root portion of the upright stem T to the lowermost cutting portion 62 of the cutting device 61. Further, a rear window 13 is provided on the rear wall of the cover 3 on the side of the rear columns 29, 29. In the illustrated example, the rear window 13 closes an opening provided in the upper half of the rear surface of the cover 3 with a peeping wall 58 made of an iron plate or an iron net having small holes such as punched metal, and is detachably attached to the rear surface. A resin-made transparent plate 59 is attached to prevent dust from scattering to the work vehicle side and to enable cleaning when the inner wall becomes dirty. This rear window 13
Is attached to the front of the mobile agricultural machine 17 and the cutting process is performed by traveling the machine body 12 forward.
While the driver directly confirms the approaching position of the upright standing trunk T from the rear window 13 through the front opening 4 of the cover 3 through the rear window 13, the driver steers the steering of the airframe 12 left and right. To drive forward and the driving operation becomes easy.

Next, the operation of the engine 14 attached to the upper part of the trunk processing unit 24 will be described. Engine 1
Since the throttle lever 15 and the stop switch 16 for operating the rotation of the engine 4 are provided in the vicinity of the driver and the engine 14, the presence or absence and the density of the upright remaining trunk T during traveling work can be detected by the sensor 7.
7, when there is no upright remaining trunk T, unnecessary high-speed rotation of the engine 14 is automatically controlled to reduce fuel consumption cost. Also, if the rotation speed is low, the centrifugal clutch 35
Is quiet because it does not drive the rotating shaft 1
It is safe. In addition, when a hard object is caught around the rotary blade 2, the independent engine 14 can be immediately stopped manually at a plurality of places in the driver's part and outside the vicinity of the engine 14, thereby improving safety and preventing damage. Can be easily achieved.

As shown in the overall side view, the remaining trunk cutting device 24 is attached to the front part of the mobile agricultural machine 17 by adjusting the inclination with an actuator 79, and the rotary tilling device is lifted and lowered at the rear part of the mobile agricultural machine via a three-point link device. Since it is freely mounted, the operating handle is rotated to a position where the grounding plate 75 is substantially in contact with the ground on the ridge while the remaining trunk cutting device 24 is straddling the ridge M. Adjust the upright balance T
The length of the cutting can be adjusted to be shorter or longer, the cutting process is performed first from the upper end side, the cutting is dropped to the ridge, and the dropped remaining stem can be plowed simultaneously by the subsequent rotary plowing device 23. That is, when the field is used as a paddy field, watering is carried out, but when the remaining stem is lengthened,
The remaining stem is less likely to be held near the water surface by being retained in the soil, and the cut surface is cut in a direction substantially perpendicular to the axial direction of the remaining stem, and the cut surface is not sharp and sharp. It is safe to walk in the field for later work. When a field is used as a field, the remaining trunk is cut short, and the number of cut surfaces into which microorganisms invade even in soil with low moisture is increased to facilitate corrosion. In this way, the erect trunk T
The tilling work can be performed by easily changing the cutting length of the to the optimum state according to the work of the next step.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view in which a device is attached to a front part of an airframe.

FIG. 2 is an enlarged side sectional view of a main part of FIG.

FIG. 3 is a side sectional view of a main part lower frame part.

FIG. 4 is a plan sectional view of FIG. 3;

FIG. 5 is a bottom view of FIG. 3;

FIG. 6 is an enlarged sectional view of a main part of an upper part of the cutting device.

FIG. 7 is a front side view of the entire main part.

FIG. 8 is a rear view of the entire main part.

FIG. 9 is a side view of another example of the cutting device.

10 is a plan view and a side view of a main part of FIG. 9;

FIG. 11 is an enlarged sectional view of a main part of an upper part of the cutting device.

FIG. 12 is an overall side view including a mobile agricultural machine and a working machine.

FIG. 13 is a side view showing the posture adjustment of the device attached to the front part of the fuselage.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 rotating shaft 2 rotating blade 3 cover 4 front opening 6 receiving blade 17 moving agricultural machine 24 remaining trunk processing device 54 remaining trunk entrance guide plate 61 cutting device 77 sensor

Claims (4)

[Claims] 1. Rotating blades 2, 2,... Provided in a plurality of stages on a vertical rotating shaft 1 at appropriate intervals in the axial direction. . , Receiving blades 6 and 6 respectively facing the rotary blade 2. . A cutting device 61 that surrounds the outer periphery of the cutting device 61 with the cover 3 so as to form an opening 4 in front of the cutting device 61. A remnant stem processing device, which is mounted in a forwardly inclined posture so as to be inclined in a vertical direction. 2. The remaining stem treatment device according to claim 1, wherein the forward inclination of the cutting device 61 is adjustable. 3. The rotary blades 2, 2,. . 3. The method according to claim 1, wherein the number of mounting steps is increased or decreased.
The residual stem processing device according to the above. 4. A pair of left and right remaining trunk entrance guide plates 54 are provided in a substantially upper half of the opening 4 so as to protrude forward, and an upright remaining trunk T is provided between the left and right guide plates 54, 54. 4. A trunk processing apparatus according to claim 1, further comprising a sensor 77 for detecting presence / absence of the remaining stem.