JP3458929B2 - Guidance guard for tail cutting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a root cutting portion of a self-propelled root vegetable harvesting machine for harvesting carrots, particularly carrots, for efficiently cutting roots of carrots.

[0002]

2. Description of the Related Art Conventionally, a self-propelled root vegetable harvester for harvesting radish and carrots has been known, and a driver's seat is arranged on one side of the upper part of the traveling device and parallel to the traveling direction on the other side. Placing a pulling conveyor, placing a digging device consisting of a hoe-shaped subsoiler in the front part of this pulling conveyor, inserting this digging device into the soil, digging root vegetables from below in the soil, The root of the root vegetables is sandwiched from both sides by the belt of the pulling conveyor, and the root vegetables are conveyed diagonally upward. And
A tail cutting device including a guide guard for guiding the root of the root vegetable to the center and a disc cutter is disposed below the pulling conveyor to cut the tail. A technique in which the root vegetable after the tail is cut off is transferred to a horizontal conveyor, the root portion of the root vegetable leaf is cut by another cutter, and the root portion is stored in a storage container is known. The guide guard of the tail cutting device is one in which a plate body having a symmetrical shape is fixed in an inclined shape, an open shape is formed on the front side, and a groove is formed on the rear side. It guides you to the cut surface.

[0003]

In this conventional root vegetable harvesting machine, soil is often attached around the root vegetables extracted by the extraction conveyor. During the transportation of this root vegetable to the rear, if the root vegetable is brought into contact with the guide guard of the tail-cutting device and guided to the center, soil will adhere to the guide guard, and soil will adhere to the left and right sides of the guide guard made of conventional plates. The groove that guides the tail of the root vegetable is blocked with soil, and the guiding posture collapses at the cutting position of the disc cutter that cuts the tail, and the accuracy of the finished surface of the tail deteriorates. The work to remove the adhering soil had to be performed, which made continuous operation impossible, and the efficiency of the harvesting work deteriorated.

[0004]

The present invention uses the following means in order to solve the above problems. In claim 1, a root conveyor is dug up in front of the traveling machine body, and a pull-out conveyor and a dug-up device are arranged to convey it rearward, and a guide guard G for guiding the root of the root root to the center in front of and below the pull-out conveyor is cut. In the configuration in which the tail-cutting device composed of parts is arranged, the guide guard G is
The material is formed in a frame shape and a pair is provided on the left and right, and the guide guard G
Is a horizontal support portion 10a configured in a substantially V shape in plan view, and
A front vertical guide portion 10c vertically provided at the front end of the horizontal support portion, and the front
A plurality of pieces horizontally projected from the vertical guide portion 10c toward the rear center direction.
Horizontal guide portions 10d, 10d ... And the horizontal support portion 1
In the rear vertical guide portion 10b extending upward from the inner rear end of 0a
It is composed more . In claim 2, claim
In the guide guard of the tail cutting device described in 1,
Of the horizontal guide portions 10d, 10d ...
The rear end is not in contact with the rear vertical guide portion 10b but at the front portion thereof.
Cut the edge and set the horizontal guides 10d, 10d ...
A certain space is opened between the rear vertical guide portions 10b .

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the accompanying drawings. 1 is an overall side view of a self-propelled root crop harvester, FIG. 2 is a plan view of the same, FIG. 3 is a side view showing a tail trimming device and a shoulder alignment guide, and FIG. 4 is a front view showing a guide guard of the present invention. 5 is a plan view showing the guide guard, FIG.
[Fig. 3] is a side view showing a guide guard.

1 and 2, the overall structure of a self-propelled root vegetable harvester equipped with a tail cutting device N, particularly a root vegetable harvester mainly for carrot harvesting will be described. First, the crawler type traveling device 2 is disposed below the horizontally arranged main frame 1, and the driving operation unit A is disposed on the front right side (right side in the traveling direction) of the main frame 1. There is. In the operation section A, a front column 4 is erected on the front side, and an operation lever 5 for steering and excavating the apparatus F at the same time is projectingly provided on the upper part thereof, and an accelerator lever is arranged on the side. ing. On the side of this front column 4 is the side column 3
Is erected, and each operation lever such as a work lever and an auxiliary shift lever is projected on the side column 3. A driver's seat 7 is arranged behind the front column 4, an engine compartment is arranged under and behind the driver's seat 7, an engine E is built in the engine compartment, and the engine E is covered by an engine cover 6. . A container stand 8 is placed on the engine cover 6.

Then, dig the root vegetables on the left side of the traveling body,
A mechanism that conveys the leaves rearward and removes the leaf portion, and a mechanism that accommodates the root portion in the container 9 are provided at the rear portion thereof. That is, the raising device 40, from the left front part of the main frame 1,
A gauge wheel 43 for setting the height of the pulling conveyor 30, a pulling device 41 for pulling up the root of the root vegetables, a digging device F for digging the root vegetables in the soil thereunder, and a rear part of the pulling device 40, A pulling conveyor 30 that holds and conveys both sides of the dug up root vegetables, a cutting section 47 behind the pulling conveyor 30, a lower conveyor 48 and a lateral feed roller 49 below the pulling conveyor 47, and a sorting conveyor 50 that conveys to the side of the container. Are arranged.

Each device of this series of root vegetable harvesting device will be specifically described. First, the digging device F is provided with a rotary fulcrum shaft 20, 21 on the upper and lower portions of the front end of the main frame 1.
Are horizontally installed, and the rear portions of the upper link 22 and the lower link 23 are pivotally supported by the rotation fulcrum shafts 20 and 21, respectively, and the front portions of the upper link 22 and the lower link 23 are pivotally connected to the bracket 25. . The upper link 22 and the lower link 23 form a parallel link, and the upper end of the subsoiler 24 is fixed to the bracket 25.

An arm 26 is provided at the rear end of the lower link 23.
It is connected to an elevating cylinder 27, which is a hydraulic cylinder, via an elevating cylinder. The upper portion of the subsoiler 24 is supported on the front portion of the upper link 22 via an eccentric cam, and the eccentric cam can be rotated to vibrate the subsoiler 24, and the soil can be vibrated from below the root vegetable. The root vegetables are raised so that they can be easily pulled out.

The rear portion of the pull-out conveyor 30 is supported by a conveyor supporting frame 31, and the conveyor supporting frame 31 is supported by a supporting body 32 protruding above the main frame 1.1. The support body 32 is an integral component member including a left / right rotating shaft 32a and an up / down rotating cylinder 32b. The extraction conveyor 30 is a digging device F
It is possible to change the pull-out height or lift it by rotating up and down around the vertical rotating tube 32b by using the lifting and lowering of the. In addition, the chain double-dashed line (30 ') in FIG.
As shown by, the power transmission mechanism B can be opened by rotating around the left and right rotating shaft 32a.

In the pull-out conveyor 30, the transfer frames 30L and 30R are arranged parallel to each other in the front-rear direction and inclined forward, backward, and rearward, and the rear lower surface of the transfer frames 30L and 30R is supported by the conveyor support frame 31. Pulleys 33.3 on both front and rear ends of the transport frames 30L and 30R
3 is arranged, and guide pulleys 34, 34
.. are arranged, and the conveyor belts 30a and 30 are provided on these pulleys.
A sub-conveyor 36, in which a pair of left and right conveyor belts is wound, is provided on the lower surface of the pull-out conveyor 30 from the middle part to the rear part of the drawing conveyor 30 to hold the root side of the leaf part. In addition, the star wheel 37
37 is arranged to scrape the leaves of root vegetables.

The arm is projected forward from the front end of the pull-out conveyor 30, and the pulling-up device 40 is fixed so that the vertical height can be adjusted. This raising device 40 is a tine 4
Belts projecting 0a, 40a, ... Are wound so as to face each other in the vertical direction, and the root portion of the root vegetable is pulled upward in the center. Further, the pulling device 41 is fixed by projecting the connecting body forward from the pulling device 40. The pulling device 41 has a tine 41a similar to the pulling device 40.
Belts projecting 41a ... are arranged on the front and rear sides in the vertical direction on the left and right to pull up the leaves from both the left and right sides of the harvesting strip.

A gauge wheel 43 is arranged on the front side of the raising device 40. This gauge wheel 43
The raising device 4 is rotatably supported by the tip of a supporting arm 42 protruding laterally of the raising device 40, and the height of the gauge wheel 43 can be adjusted on the supporting arm 42, thereby raising and lowering the raising device 4.
It is possible to adjust the height of the pre-treatment device composed of 0 and the pulling device 41 and the height of the pulling-out conveyor 30, and to adjust the holding position of the root portion of the root vegetable.

At the rear portion of the pulling conveyor 30 and the auxiliary conveying conveyor 36, a leaf discharging conveyor 44 is extended horizontally in the front-rear direction and rearward. A horizontal conveyor 45 is extended rearward in the front-rear direction in the middle of the auxiliary transport conveyor 36, and a guide 46 for guiding root vegetables is provided below the horizontal conveyor 45. A cutter 47 is arranged between the 46 and the horizontal conveyor 45. The root portion of the root vegetables transported by the auxiliary transport conveyor 36 is taken over by the horizontal conveyor 45 and transported backward while the upper end of the root portion of the root vegetable is positioned, and the leaf portions are cut by a cutter 47 at a predetermined position, The leaves are dropped onto the lower conveyor 48 arranged below the leaves, and the leaves are conveyed to the leaves discharging conveyor 44 and dropped from the rear to the field scene.

The lower conveyor 48 is composed of a wide belt conveyor, and is arranged horizontally from the lower rear portion of the auxiliary transfer conveyor 36 to the rear thereof.
A transverse feed roller 49 is arranged in an oblique direction on the midway portion. Rotation of lateral feed roller 49 and lower conveyor 48
The root drive is dropped onto the sorting conveyor 50 on the side by the transport drive of (1). The sorting conveyor 50 is a wide roller conveyor which is arranged in the left-right direction at the rear of the machine and is adapted to drop the soil adhering to the root vegetables while feeding it sideways. A container mounting table 54 is arranged below the terminal end of the sorting conveyor 50.
A container 9 is placed on the container 4.

Further, as shown in FIG. 3, a shoulder alignment guide 51 and a tail cutting device N for cutting the root of root vegetables are arranged below the front end of the pulling conveyor 30 of this self-propelled root vegetable harvester. ing. The shoulder alignment guides 51 are arranged at a lower front and lower height than the inclination angle of the pull-out conveyor 30, and align the heights of the roots of the root vegetables conveyed by the pull-out conveyor 30. The tail cutting device N is disposed below the shoulder alignment guide plate 51, and is configured by a guide guard G that guides the tail of the root vegetable, a cutting portion S that cuts the tail, and a support rod 14 that supports the cutting portion S. Has been done. The cutting portion S includes a drive case 17 and a pair of left and right disc cutters 13.1 pivotally supported by the drive case 17.
It is composed of three. A guide guard G is arranged in front of the cutting portion S. The guide guard G has a bilaterally symmetrical shape, and the tail portion of the root vegetables, which are conveyed while the leaf portions are sandwiched by the pulling conveyor 30, is located at the center (the left and right conveying belts 30).
It is guided to the vertical line of the sandwiching surface of a. 30a) and conveyed between the left and right disc cutters 13. Further, below the cutting portion S, a box body 57 having an open upper surface is placed. The box 57 is adapted to receive root vegetables that have failed to be pinched due to uneven cultivation or extremely small root vegetables.

Further, as shown in FIG. 5, a mounting portion 60 is fixedly provided on the left side of the driving case 17 in the cutting portion S, and the cutting portion 11 is supported by the mounting rod 60.
The height of the cutting portion S and the height of the guide guard G are adjusted at the same time. Next, the cutting section S will be described with reference to FIGS. 4, 5 and 6. The drive case 17 of the cutting portion S has a transmission shaft 1 having a shaft center in the left-right direction.
A transmission cylinder 17a for axially supporting 9 and drive support shafts 17b, 17b for pivotally supporting the drive shafts 18, 18 with the shaft center arranged in the vertical direction are formed. The disk cutters 13 and 13 are arranged above the drive shafts 18 and 18, respectively. The left and right disc cutters 13 and 13 are slightly shifted in vertical height so that the left and right disc cutters 13 and 13 are wrapped at the center in a plan view.

On the other hand, a flexible wire 67 is inserted into the left side of the drive case 17 and fixed by a retaining bolt, the right end of the transmission shaft 19 is fitted to one end of the flexible wire 67, and the other end of the flexible wire 67 is shown. Three
As shown in FIG. 5, the rotary shaft 39 pivotally supported on the support 32 is fitted to the left end portion of the rotary shaft 39. Therefore, the rotary shaft 39 is connected to the engine E.
When it is rotated by the drive of the flexible wire 67
The transmission shaft 19 is rotated via the drive shaft, and the disc cutters 13 are driven via a bevel gear (not shown).

The guide guard G in the present invention is
A pair of left and right rods are provided by bending and welding rod-shaped members such as round rods and square rods. That is, the guide guard G
Includes a horizontal support portion 10a, a front vertical guide portion 10c, a rear vertical guide portion 10b, and a horizontal guide portion 10d.
Has a substantially V shape in a plan view, and projects a vertical portion 10e upward from the rear end of the horizontal support portion 10a.
The upper end of 0e is fixed to both sides of a fixed plate 63 provided on the lower surface of the drive case 17. The fixing plate 63 is fixed to the fixing portions 17c, 17c provided on the lower surface of the drive case 17 by bolts.

As shown in FIG. 5, the horizontal supporting portions 10a are bent from the lower ends of the left and right fixed plates 63 toward the front in the horizontal direction, and are formed into an inverted "C" shape in plan view. It is configured to spread outward in the width, and specifically open at 45 ° or more in the traveling direction. It protrudes forward from its side end, bends toward the center in a V-shape at the front end 10f (toward the inner rear on the horizontal plane), and at a substantially central portion of the horizontal support portion 10a in a side view. The rear vertical guide portion 10b is formed by obliquely rising upward and rearward.

The left and right rear vertical guide portions 10b.1
As shown in FIG. 4, 0b are arranged in a "V" shape in a front view and are arranged to face each other, and a gap is formed between them so that the tail of the root vegetable can pass through them. The interval is narrowed to the substantially central portion, and the interval is widened above the approximately central portion. That is, the shape is constricted at the center. Therefore, the root vegetables, whose leaves are sandwiched and conveyed by the pulling conveyor 30, are guided by the disc cutters 13 and 13 when the roots of the roots enter the gap in the center of the guide guard G, and are guided upward, and when they leave the upper end. Be disconnected.

As shown in FIG. 4, the front vertical guide portion 10 is provided on the upper surface of the front end portion 10f at the front end of the horizontal support portion 10a.
c is erected so as to be inclined rearward. The front vertical guide 10
The upper end of c is aligned with the upper end of the rear vertical guide 10b. On the side surface of the front vertical guide portion 10c, a plurality of horizontal guide portions 10d, 10d, ... Are provided in parallel in the vertical direction at regular intervals toward the rear vertical guide portion 10b in a horizontal direction so as to project horizontally. The horizontal guides 10d, 10d, ... The rear ends are longer toward the upper side and toward the rear, and are shorter toward the lower side so as to approach the angle of the bent portion of the horizontal support portion 10a.
10d ... The rear end is cut off at the front portion thereof without contacting the rear vertical guide portion 10b, and the horizontal guide portions 10d.
..A certain space is provided between the rear end and the rear vertical guide 10b.

With this structure, the root portion of the root vegetable is guided to the upper and rear central sides while contacting the horizontal guide portions 10d, 10d ... Of the guide guard G, and adheres around the root portion during this guidance. Soil and other soil are guided horizontally by 10d and 10d.
It is scraped off with. Since the horizontal guide portion 10d is formed by a round bar or the like, soil or the like hardly adheres like a plate or the like, and even if it adheres, it easily drops, so that it does not become a large lump and adhere. . Further, the soil that has fallen falls from the space between the end portions of the horizontal guide portions 10d, 10d ... And the rear vertical guide portion 10b and does not accumulate. And, the root of the root vegetable is the rear vertical guide 10b.
Is conveyed toward the gap between the tails, and the tail part is the rear longitudinal guide part 1.
It is cut by the disc cutters 13 and 13 when it goes backward from the gap at the upper end of 0b and 10b.

[0024]

Since the present invention is constructed as described above,
It has the following effects. According to the first aspect of the present invention, the guide guard can be formed by combining rod-shaped members, and the guide guard can be made lighter than a plate member, and the gap between the rods can be reduced. Since the soil can be dropped further, the soil or the like is not attached to the guide guard, and the root and tail portion can be properly guided to the center. Therefore, the performance of the guide guard can be improved, and the root and tail portion can be guided to the center with character, so that the finishing accuracy for cutting the tail portion can be made constant, and the finishing cutting suitable for shipping can be realized. Further, as in claim 2.
Since it is composed of the rod-shaped member , the adhered soil and the like are easily dropped, the accumulation is almost eliminated, continuous work is possible, and the work efficiency can be improved.

[0025] As according to claim 2, since there is provided a gap between the rear longitudinal guide portion and the rear end of the horizontal guide portion, and the rear end of the horizontal guide portion, the upper end of the rear longitudinal guide portion is opened, for example Even if soil adheres, it will be shaken off by the vibration during transportation, soil will not adhere to the position near the central guard that guides the tail of the root vegetable upward, and soil will not be adhered between the left and right central guards. Since it does not block the gap that attaches and guides,
The tail of the root vegetable can be smoothly guided to the cutting portion of the disc cutter. In addition, even if root vegetables were continuously fed and they were likely to be clogged, they were not fixed, so they opened to the left and right to some extent and could not be clogged, improving continuous work performance.

[Brief description of drawings]

FIG. 1 is an overall side view of a self-propelled root vegetable harvester.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view showing a tail trimming device and a shoulder alignment guide.

FIG. 4 is a front view showing a guide guard of the present invention.

FIG. 5 is a plan view showing a guide guard of the same.

FIG. 6 is a side view showing a guide guard of the same.

[Explanation of symbols]

A operation control section F excavator G guide guard N tail cutting device S cutting part 10a horizontal support 10b Rear vertical guide 10c Front vertical guide 10d Horizontal guide

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeki Murata 1-32 Chaya-cho, Kita-ku, Osaka City, Osaka Prefecture Yanmar Agricultural Machinery Co., Ltd. (72) Toru Abe, 684 Nakazuka, Okayama, Okayama Kobashi Kogyo Co., Ltd. In-house company (56) Reference JP-A-7-203739 (JP, A) JP-A-7-8051 (JP, A) JP-A-3-236708 (JP, A) Actual Kaihei 2-920 (JP, A) U) Actual development Sho 51-120243 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A01D 13/00-33/14

Claims (2)

(57) [Claims] 1. A guide guard G and a cutting unit for arranging a root vegetable in the front of the traveling machine body and arranging a pulling conveyor and a digging device for transporting the root vegetable in the rear, and guiding the tail portion of the root vegetable to the center in the lower front of the pulling conveyor. In the configuration in which the tail cutting device is arranged, the guide guard G has a rod-shaped member in a frame shape.
The pair of guide guards G are provided on the left and right, and the guide guard G is seen in a plan view.
Horizontal support portion 10a having a substantially V shape, and the horizontal support portion
Front longitudinal guide portion 10c vertically installed at the front end of the
Multiple horizontal guides that horizontally project from 0c toward the rear center
10d, 10d ... and inside the horizontal support portion 10a
It is composed of a rear vertical guide portion 10b extending upward from the rear end.
A guide guard for the tail-cutting device. 2. A guide gar for the tail-cutting device according to claim 1.
The horizontal guide portion 1 which constitutes the guide guard G
0d, 10d ... The rear end contacts the rear vertical guide 10b.
Without cutting the edge at the front without horizontal guide 10d
10d ... A constant space is provided between the rear end and the rear vertical guide portion 10b.
Guide guard of tail cutting device which is characterized in that opened between.