JP3458934B2 - Tail cutting device of self-propelled root vegetable harvester - 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, and more particularly to a tail cutting section for efficiently cutting roots of the carrot.

[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. A tail cutting device including a guide guard that guides the tail 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 cutting the tail 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.

Further, the guide guard of the tail cutting device guides the unnecessary tail portion to the cutter so as not to cut other powder, so that a rod-shaped member such as a round bar or a plate material is forwardly moved to both sides. It was opened, and the rear portion was gradually narrowed to have a substantially V shape in a plan view, and a gap was provided at the rear end so that only the tail passed.

[0004]

Soil is often attached around the root vegetables pulled out by such a conventional root vegetable harvesting machine, and particularly in moist soil. While conveying this root vegetable backward, the tail is cut by the tail cutting device, but when the root vegetable is guided to the center while the guide guard of the tail cutting device is brought into contact with the center, the conventional member configured horizontally in front view is used. In the guide guards we have,
Soil, foliage, tail, etc. tend to adhere, and if treated in large quantities,
At the cutting position of the disk cutter that cuts the tail, soil etc. accumulates on the horizontal support part and the horizontal guide part that guide the tail part of the left and right roots, and the guiding posture collapses, resulting in poor accuracy of the finished surface of the tail part. Every time, the work to remove the soil adhering to the guide guard had to be performed, which made continuous operation impossible, and the efficiency of the harvesting work deteriorated.

In the conventional construction, the tail of the root vegetable is guided to the central portion where the left and right disc cutters are wrapped, but the root vegetable is always guided to the central portion in an appropriate posture due to transport disturbance of the root vegetable. Not always, the accuracy of the finished surface of the tail was poor. Moreover, since the conventional guide guard has a complicated structure in which a large number of rod-shaped members are arranged vertically and horizontally, it is difficult to easily manufacture the guide guard, and the cost tends to increase.

[0006]

The present invention uses the following means in order to solve the above problems. That is, a digging device F for digging root vegetables in front of the traveling machine body, and a pull-out conveyor 30 for transporting backward are arranged, and a guide guard G and a cutting section S for guiding the root of the root vegetables in front of and below the pull-out conveyor 30. Nail-tailing device N
In a configuration in which the guide body G is arranged, the guide guard G is composed of a plurality of guard bodies 10 each having a round bar-like member formed in a substantially L shape in a side view and a fixed portion thereof, and a vertical portion of the guard body 10 is cut into a cut portion S. It is arranged in parallel according to the shape of the front part of.

Further, the guide guard fixing portion 63 is provided below the cutting portion S, and the guide guard fixing portion 63 is housed within the outer shape of the cutting portion S in plan view.

[0008]

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 of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a side view of a tail trimming device and a shoulder alignment guide, and FIG. 4 is a tail trimming device of the present invention. Front view, FIG. 5 is the same plan view, FIG. 6 is the same bottom view, FIG. 7 is the same side view, FIG. 8 is a side view showing the support part of the tail cutting device, and FIG. 9 is a foliage cut of a self-propelled root crop harvester. FIG. 10 is a rear view showing the same, and FIG.

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 performing steering and raising / lowering operation of the digging device F is projected on the upper part of the front column 4, 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 pull-out conveyor 30,
A pulling device 41 for pulling up the root portion of the root vegetable, a dugout device F for dug up the root vegetable in the soil below the pulling device 41, and a pulling-out device for sandwiching and carrying both sides of the dug up root vegetable leaf from the rear part of the pulling device 40. Conveyor 30, pull-out conveyor 30
A cutter 47 is provided behind the cutter, a lower conveyor 48 and a lateral feed roller 49 are provided below the cutter 47, and a sorting conveyor 50 that conveys to a container is provided on the side thereof.

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 support frame 31, and the conveyor support frame 31 is supported by a support 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 pull-out conveyor 30 is rotated up and down around the vertically rotating tube 32b by using the elevation of the excavator F so that the pull-out height can be changed or lifted. In addition, the two-dot chain line (3
As shown by 0 '), 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 in parallel with each other in the front-rear direction and inclined frontward and rearward and rearward, and the rear lower surface of the transfer frames 30L and 30R is supported by the conveyor support frame 31. Pulleys 33 are attached to the front and rear ends of the transport frames 30L and 30R.
33 is arranged, and guide pulleys 34, 34 are provided in the middle thereof.
... are arranged, and the conveyor belts 30a and 3 are provided on these pulleys.
0a is wound, and an auxiliary transport conveyor 36 having a pair of left and right transport belts wound is provided on the lower surface from the middle part to the rear part of the pull-out conveyor 30 to hold the root side of the leaf portion. Further, star wheels 37, 37 are arranged above the front end of the pull-out conveyor 30 to scrape the leaves of the 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. In this raising device 40, belts protruding from the tines 40a, 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 is similar to the pulling device 40 in that the tine 41
Belts projecting a. 41a are arranged on the front and back 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 consisting of 0 and the pulling device 41 and the pull-out conveyor 30, and it is possible to adjust the nipping position of the root portion of the root vegetable.

At the rear of the pull-out conveyor 30 and the auxiliary transfer conveyor 36, a leaf discharge conveyor 44 is extended rearward in the horizontal direction. 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. Between the 46 and the horizontal conveyor 45, a cutter 47
Are arranged. The leaves of the root vegetables conveyed by the auxiliary conveyer 36 are taken over by the horizontal conveyer 45,
The root of the root vegetables is transported to the rear while being positioned,
The leaf portion is cut by the cutter 47 at a predetermined position, the root portion once falls to the impact absorbing plate 70 disposed below it, and then on the lower conveyor 48 disposed below the impact absorbing plate 70. After being slid off, the leaves are conveyed to the leaf discharge conveyor 44 and dropped from the rear to the field scene.

As shown in FIGS. 9 and 10, the shock absorbing plate 70 has one end of a plate-like support plate 70a made of an elastic member such as a spring steel or a synthetic resin plate as a shock absorbing plate fixing portion 70c. It is fixed by bolts and the like, and an elastic member, for example, a plate-like elastic body 70b made of sponge, rubber, foam resin, or the like is fixed to the upper surface of the support plate 70a. The upper surface of the elastic body 70 is an inclined surface that descends from left to right in rear view. When the root vegetables after cutting the leaves are dropped into the shock absorbing plate 70 configured as described above, the shock at the time of falling is absorbed by the double elastic effect of both the supporting plate 70a and the elastic body 70b. The damage to root vegetables such as cracks and chips is prevented. Further, the elastic effect and the inclined surface provided on the elastic body 70c enable the root vegetables that have continuously dropped to be smoothly transferred to the lower conveyor 48 without stagnation, and damage caused by interference between root vegetables can be prevented. ing.

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.

Below the front end of the pull-out conveyor 30 of this self-propelled root crop harvester, as shown in FIG. 3, a shoulder alignment guide 51 and a tail cutting device N for cutting the root of the root crop.
Are installed. The shoulder aligning guides 51 are arranged at a lower front and lower rear than the inclination angle of the pull-out conveyor 30 to align the heights of the roots of the root vegetables conveyed by the pull-out conveyor 30. The tail cutting device N
Is provided below the shoulder alignment guide 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. The cutting portion S includes the drive case 17 and the drive case 1.
It is composed of a pair of left and right disc cutters 13, which are rotatably supported on the shaft 7.

A guide guard G is arranged in front of the cutting portion S. As shown in FIG. 5, the guide guard G comprises a plurality of round bar-shaped members vertically arranged on the concentric circles of the left and right disc cutters 13 in plan view. As a result, the tail portions of the root vegetables that are conveyed while the leaf portions are sandwiched by the pulling-out conveyor 30 are moved to the left and right disc cutters 13.
It is possible to guide not only the central portion where 13 is wrapped, but also almost the entire front surface. Further, below the cutting portion S, a box body 57 having an open upper surface is placed. The box body is adapted to receive root vegetables, which are unsuccessfully pinched due to uneven cultivation, or extremely small root vegetables.

Further, the mounting portion 60 is fixedly provided at one end of the drive case 17 in the cutting portion S so that the roots and soil of the cut root vegetables are not likely to be deposited, as shown in FIGS. 6, 7 and 8. The cutting portion S is attached to the support rod 14 as one-sided support by using the attaching portion 60. A support plate 73 is fixed to the upper end of the support rod 14, and the support plate 73 is fixed to the root vegetable harvester main body via support brackets 74, 74.

The attachment of the cutting portion S to the supporting rod 14 is performed by fixing holes 71, 71, ... In which a plurality of bolts 72 provided on the attaching portion 60 are bored in the vertical direction of the supporting rod 14.
Since it is performed by inserting it into any one of the holes, it is possible to simultaneously adjust the cutting portion S and the guide guard G to a height according to the size of the root vegetable. Further, the fastening hole of the support bracket 74 with the support plate 73 is a long hole 74a.
Therefore, the positions of the cutting portion S and the guide guard G can be finely adjusted back and forth and up and down at the same time.

Next, the cutting section S will be described with reference to FIGS. 4, 5, 6, and 7. Drive case 1 of the cutting portion S
Reference numeral 7 denotes a transmission cylinder 17a that axially supports a transmission shaft 19 having a shaft center in the left-right direction, and a drive shaft 18.1 that disposes the shaft center in the vertical direction.
The drive support shafts 17b and 17b pivotally supporting 8 are formed. Desk cutter 1 on top of each drive shaft 18
3 ・ 13 are installed. Left and right disc cutter 13
13 has left and right disc cutters 13 and 13 lapped at the center in a plan view by slightly shifting the vertical height.

On the other hand, the 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 in FIG. Three
As shown in FIG. 5, the rotary shaft 39 pivotally supported by the support 32 is fitted to the left end portion of the rotary shaft 39. Therefore, when the rotating shaft 39 is rotated by driving the engine E, the transmission shaft 19 is rotated via the flexible wire 67 and the disc cutters 13 are driven via a bevel gear (not shown).

The guide guard G of the present invention is formed by disposing a plurality of guard bodies 10 formed by bending or welding a rod-shaped body such as a round bar. The guard body 1
Reference numeral 0 denotes a support portion 10c, a horizontal portion 10a, and a vertical portion 10b. The support portion 10c is a horizontal support portion that is horizontally arranged and a vertical support that projects downward from the front end of the horizontal support portion in a side view. It is made up of divisions. A horizontal portion 10a projects from the lower end of the vertical support portion of the support portion 10c to the front in a side view, and the horizontal portion 10a is bent at the front end and rises vertically upward to form a vertical portion 10b. In addition, the horizontal portion 10
The corner connecting a and the vertical portion 10b is formed in an arc shape so that roots, soil, etc. of root vegetables are caught and are unlikely to adhere and accumulate.

The guard body 10 includes a fixed plate 6 in which the horizontal support portion of the support portion 10c is provided on the lower surface of the drive case 17.
The vertical portion 17b is fixed to the lower surface of the sheet 3 so that the vertical portion 17b is disposed in front of the cutting portion S with the end portion facing upward. At this time, the vertical part 1
The upper end of 0b is approximately the same height as the disc cutters 13 and 13. The fixing plate 63 has a plate shape and is fixed to the fixing portions 17c and 17c provided on the lower surface of the drive case 17 by bolts. Further, the fixed plate is housed within the outer shape of the disc cutter 13 in plan view, and the supporting portions 10c, 10c ... Are provided in parallel and are not connected to each other, so that soil or roots of root vegetables are unlikely to adhere or accumulate. And then
It is easy to manufacture.

A plurality of the guard bodies 10 fixed to the fixing plate 63 as described above are arranged parallel to each other in the front view within the width of the disc cutters 13 and at equal intervals. A plurality of the guard bodies 1 arranged in parallel and at equal intervals
The interval between 0 ... 10 is set to a length that allows the root of the root vegetable to pass through. In addition, the vertical portion 10 of the guard body 10
b is arranged on a concentric circle of the disc cutters 13 in the plan view with a slight gap provided between the disc cutters 13 and 13.

Therefore, in the root vegetables whose leaves are sandwiched by the pull-out conveyor 30 and conveyed, the lower root is the guard body 1.
0-10 ... by the disc cutter 13/13
Was guided to the center of the wrap, and the tail of its root,
It enters into the gap between the guard bodies 10, 10 ... And is cut by the disc cutters 13. However, the state in which the root vegetables are clamped is not always constant, and the shape is not constant, and some of them are bent, so that the tail may shift. In such a case, the tail is not guided to the central portion where the disc cutters 13 are wrapped, but the tail is cut through at any position between the guard bodies 10 which are evenly spaced. It is.

Further, the soil adhered to the root of the root vegetable is scraped off by the guard body 10.10.
0 ... is formed in a substantially L-shape in a side view with a round bar or the like, and has a simple structure without horizontal members that connect each other in the left-right direction, so that soil or the like hardly adheres, and temporarily adheres. However, since it easily falls, it does not form a large lump or deposit.

[0031]

Since the present invention is constructed as described above,
It has the following effects. That is, side view substantially L
The disk-shaped cutter 13
Since a plurality of parallel roots are provided at equal intervals according to the shape of the front part of 13, the conveyed root vegetables are not guided to the central portion where the disc cutters 13 and 13 are wrapped due to conveyance irregularity or curved roots. Even if it does, the root of the root vegetable passes through between the guard bodies 10 and 10 and the disc cutter 13
・ It will be cut by 13, and the area that can contact the disc cutter 13 ・ 13 will increase and the root cutting accuracy will improve.

Further, since the guard body 10 formed of a round bar or the like and having a substantially L shape in a side view is arranged in parallel, a simple structure is provided, so that there is no horizontal portion in the vicinity of the cutting position of the disc cutters 13. The soil adhering to the roots and leaves of root vegetables was almost never deposited, and continuous workability was improved. As a result, work efficiency was improved. In addition, the guide guard can be easily manufactured with a simple structure, and the guide guard can be provided at a low cost.

[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 tail cutting device of the present invention.

FIG. 5 is a plan view of the same.

FIG. 6 is a bottom view of the same.

FIG. 7 is a side view of the same.

FIG. 8 is a side view showing a support portion of the tail trimming device.

FIG. 9 is a side view showing a foliage cutting part of a self-propelled root vegetable harvester.

FIG. 10 is a rear view of the same.

[Explanation of symbols]

A driving device F excavator G guide guard N tail cutting device S cutting part 10 Guard body 10a horizontal part 10b vertical part 10c support 13 Disc cutter 14 Support rod 30 Pull-out conveyor 63 Fixed part

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toru Abe 684 Nakamata, Okayama, Okayama Kobashi Kogyo Co., Ltd. (56) References JP-A-9-224443 (JP, A) JP-A-8-242642 (JP, A) JP-A-7-203739 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A01D 13/00-33/14

Claims (2)

(57) [Claims] 1. A digging device F for digging root vegetables in front of the traveling machine body, and a pull-out conveyor 30 for transporting the roots rearward, and a guide guard G for guiding the tail portion of the root vegetables in front of and below the pull-out conveyor 30 and cutting. In the configuration in which the tail-cutting device N including the portion S is arranged, the guide guard G includes a plurality of guard bodies 10 each having a round bar-like member formed in a substantially L shape in a side view,
A tail-cutting device for a self-propelled root crop harvester, comprising the fixed portion, and the vertical portion of the guard body 10 arranged in parallel with the shape of the front portion of the cutting portion S. 2. The tail cutting device N according to claim 1, wherein the guide guard fixing portion 63 is provided below the cutting portion S, and the guide guard fixing portion 63 is inside the outer shape of the cutting portion S in a plan view. A tail-cutting device for a self-propelled root crop harvester characterized by being stored.