JPH0823741A - Self-propelled root crop harvester - Google Patents

Abstract

(57) [Summary] [Purpose] When the root vegetables of a self-propelled root crop harvester, in which the root vegetables are dug up from the soil covered with the mulch film, extracted, transported and stored in a storage container, the mulch film is simultaneously extracted. Prevent retraction. [Structure] In the structure in which the root vegetables in the soil covered with the mulch film 70 are dug up by the excavation device A, extracted by the extraction conveyor B, and conveyed rearward by the rear placement conveyor D for storage, A roller 63 is provided behind the pulling device A and in front of and below the pulling conveyor B.
From the roller supporting portion 62 of the central side, and the arm 6 extending laterally from the roller supporting portion 62 of the central multi-pressing roller 65 to the central portion of the machine body.
6 was installed horizontally, and a multi-cutter 67 having the blade of the cutter facing forward and protruding downward was arranged at the tip thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a self-propelled root vegetable harvester for digging root vegetables such as radish and carrot from soil covered with mulch film, pulling out and transporting them, and storing them in a storage container.

[0002]

2. Description of the Related Art As a root crop harvester for radishes and the like, a root tractor is conventionally pulled by a tractor to dig up root vegetables from the soil with a hoe-shaped excavator, and a pull-out conveyor extending from the rear of the excavator. A technique for sandwiching a root portion of a root vegetable with a belt to convey the root vegetable diagonally upward and storing it in a storage container is known.

[0003]

However, when a root vegetable cultivated on a ridge covered with a mulch film is dug by a conventional root vegetable harvesting machine and is pulled out, when it is pulled out at the starting end of the conveyor, Sometimes, the mulch film was lifted along with the root vegetables and even the mulch film was pulled into the conveyor. In particular, when root vegetables were planted in an oblique direction, the mulch film was easily caught, which was also a cause of entanglement. Also, when collecting the mulch film after harvesting, it was very difficult to turn it back because both sides were buried in the soil.

[0004]

The present invention uses the following means in order to solve the above problems. That is, in a root vegetable harvester that digs up root vegetables with a digging device and conveys them to the rear side while pulling them with a pulling conveyor, disposes a multi-holding roller in front of and below the pulling conveyor behind the digging device. An arm is provided so as to project laterally from the roller supporting portion of the multi-holding roller on the center side, and the multi-cutter is arranged on the arm.

[0005]

By using the above-mentioned means, the root vegetable covered with the mulch film is dug up by the digging device A, and when the leaf portion is pulled in by the pulling conveyor B, both sides of the root vegetable are pressed by the multi-holding rollers. Since it is attached, it is possible to clamp the leaves without pulling in the mulch film. Since the mulch film is divided into two parts from the center to the left and right by the multi-cutter, it can be easily rewound.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the configuration of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a side view of a self-propelled root vegetable harvester of the present invention,
2 is a plan view of the same, FIG. 3 is a front view of the same, FIG. 4 is a plan view showing the positional relationship between the pulling conveyor B and the placing conveyor D,
5 is a side view of the multi-presser roller mounting portion, FIG. 6 is a front view of the multi-presser roller and the multi-cutter portion, and FIG. 7 is a plan view of the same.

The overall construction of the self-propelled root vegetable harvester will be described with reference to FIGS. 1 to 3. First, below the horizontal main frame 1, front crawler traveling devices 2L and 2R and rear crawler traveling devices 3L and 3R are arranged, and the front crawler traveling devices 2L and 2R are operated upward. The steering can be performed by the steering operation using the steering handle 5 arranged in the section G. The operating portion G is formed on the right front side of the main frame 1 and above the right crawler traveling device 2R. That is, the operation column 4 is erected on the upper right front of the main frame 1, and the steering handle 5 is provided on the upper part of the operation column 4. An engine compartment 6 is arranged behind the operation column 4, an engine is built in the engine compartment 6, and a driver's seat 7 is arranged on the engine compartment 6. Further, a fuel tank is mounted on the main frame 1 at a position behind the engine compartment 6.

A series of root vegetable harvesting devices for digging and transporting root vegetables, cutting off leaf portions, and accommodating the root vegetables are arranged from the front left side (opposite operation part G side) of the main frame 1 to the rear side. First, the excavation device A for excavating root vegetables in the soil from the left front part of the main frame 1 and the rear part of the excavation device A sandwiching and excavating the root parts of the excavated root vegetables. A pull-out conveyor B, a loading conveyor D below the rear end of the pulling conveyor B, a leaf cutting device E outside the loading conveyor D, and a storage container F behind the loading conveyor D.

Each of the above series of root crop harvesting apparatuses will be specifically described. First, the excavation device A will be described. A rotation fulcrum shaft 1 is provided at the front end of the main frame 1.
4 is provided laterally, and the lower link 1 is attached to the rotation fulcrum shaft 14.
The rear part of 3.13 is pivotally supported, and the lifting frame 1 is attached to the rear part.
5 is erected, and a top link support portion 15a is provided on the upper end of the elevating frame 15, and the top link support portion 1 is provided.
The rear end of the top link 16 is pivotally supported by 5a. In this way, the lifting link mechanism is arranged on the front side of the pull-out conveyor B. Furthermore, the front end portion of the top link 16 and the front end portions of the lower links 13, 13 are pivotally supported by the front mast 12. At the front end of the front mast 12, an upper end of a hoe-shaped excavating claw 9 having a substantially L-shape when viewed from the front is attached so that the vertical position can be adjusted.

The upper part of the excavating claw 9 is fixed to the tip of a crank arm 10 extending from the inside of the front mast 12, and the rear end of the crank arm 10 is fixed to the front mast 1.
2 is pivotally supported on a cam that rotates around the output shaft of the excavating claw drive motor M1 that is a hydraulic motor fixed to the side surface.
The crank arm 10 makes a crank motion by the rotation of the cam driven by the motor, whereby the excavation claw 9
Is rocked back and forth to dig up in the soil.

An elevating arm 17 is fixed to a rear end of the lower link 13, and a tip end of the elevating arm 17 is a hydraulic cylinder 47 provided inside the elevating frame 15.
Is connected to the piston rod of the hydraulic cylinder 47.
By expanding and contracting, the lower links 13 and 13 rotate about the rotating shaft 14, the excavating claws 9 provided on the front mast 12 can be moved up and down, and the extraction conveyor B can also be moved up and down.

The pull-out conveyor B is a transfer frame 21L.
The transport frame 21 is configured to have a "V" shape in plan view, which is bent outward (to the left) from a substantially central portion of 21R in the front-rear direction.
Pulleys 23F ・ 23F ・ 2 at both front and rear ends of L ・ 21R
3R and 23R are arranged, and the pulleys 23C and 23C, the pulley 23d, and the pulleys 23e and 23e are arranged in the bent portion 24 of the transport frame 21L, and the sandwiching belts 25L and 25R are wound around these pulleys and guided to the rear. It can be transported and driven.

Further, the conveying frames 21L and 21R arranged side by side on the left and right are integrally connected by connecting frames 22 and 22 ..., Connecting frame 26a, and the lower end of the connecting frame 26a is connected to the rotating shaft 27. It is fixed so that the pull-out conveyor B can rotate about the rotation shaft 27. Further, the front and rear central side surfaces of the transport frames 21L and 21R, and the lower link 13 for moving the excavating device A up and down.
A conveyor elevating cylinder 29 is interposed between the side surface of the intermediate part and the lower end of the conveyor elevating cylinder 29 is rotatably supported by a pivot shaft 28b protruding from the lower link 13 and has an upper end. The unit rotatably supports a pivot shaft 28a protrudingly provided on the left side of the connecting frame 22, and when the excavating device A is moved up and down, the pulling conveyor B is also moved up and down at the same time. By driving 29, the pull-out conveyor B can be individually moved up and down, and can be adjusted to the height of the leaves.

Further, a divider 30 is removably arranged at the front end of the pull-out conveyor B, and the divider 30 has a pull-up chain case 32L for accommodating a drive chain provided with tines 39a. 32R are arranged on the left and right, and the drive of the chains in the pull-up chain cases 32L and 32R is transmitted from the front pulleys 23F of the pull-out conveyor B. Further, below the front end of the pulling conveyor B, the multi-press roller 65 of the present invention is provided.
And a multi-cutter 67 are arranged. Then, a tail cutting device 45 is disposed below the pulling conveyor B at the rear part thereof, and the roller guides the tail portion to the center and the cutter cuts the tip of the tail. The blade of the cutter is rotated by a motor.

The placement conveyor D is the frame 21L.
・ Transfer rollers 33, 34, 35 are mounted on the 21R and are arranged at the respective apexes of the convey frame 31 configured in a triangular shape in a side view.
Is wound around the conveyor belt 36, and a sprocket is provided on the right side of each of the conveyor rollers 33, 34, and 35, and the auxiliary conveyor chain 37R is wound in a triangular shape.
Similarly, a sprocket is also provided on the left side of the transport rollers 34, 35, and the transport auxiliary chain 37L is wound only in the horizontal portion. The transport auxiliary chains 37L, 37R are provided with tines 39b, 39b ... Is attached.

Then, from the drive shaft 27a to the sprocket,
Through the chain, the transfer auxiliary chains 37R and 37L
Is driven so that the conveyor belt 36 can be driven, and a leaf cutting device E is disposed outside (on the left side) of the middle part of the mounting portion 38. The rotary blades 40 and 41 are arranged so as to overlap with each other, and power is applied to the drive shaft 2
It is taken out from 7a so that the leaves can be cut while the root vegetables are being conveyed. A shooter is arranged below the leaf cutting device E so as to drop the leaf to the upper part of the ridge after excavating the leaf.

In the self-propelled root vegetable harvester having such a structure, the multi-holding roller of the present invention is, as shown in FIGS.
The support pipes 60, 60 are vertically provided at the front of each of the 21R, and the support rods 61, 61 having a plurality of holes opened therein are slidably fitted in the support pipes 60, 60 by inserting and removing pins. The height is adjustable. A lower end of the support rod 61 pivotally supports a roller support portion 62, and the roller support portion extends forward to a position below the pulley 23F, and a tip of the roller support portion 62 rotatably rotates a shaft of a roller 63. I support you. A roller retainer 64 having a compression spring is pivotally supported between the front of the roller support portion 62 and the central portion of the support pipe 60 to urge the roller 63 downward. Multi pressing roller 65 having the above structure
Is arranged below the front end of the pull-out conveyor B.

Therefore, at the time of digging work, the root vegetables are lifted by the rocking of the digging claws 9, the root parts of the root vegetables are pinched by the front end of the pulling conveyor B, and the root vegetables are lifted when they are conveyed backward and upward. , At this time mulch film 7
Since 0 covers the root vegetables, they can be lifted at the same time, but since the multi-pressing rollers 65 press from both sides, only the root vegetables are conveyed backward by the pulling conveyor B.

Then, a cutter arm 66, which is substantially L-shaped in a front view, is extended from the inside (left side) of the support pipe 60 of the inside (left side) of the multi-holding roller 65 to the center of the machine body, and the tip end side face is vertically moved. A multi-cutter 67 is fixed so that its position can be adjusted, and the multi-cutter 67 has a blade projecting downward with its blade facing forward. In this way, multi-cutter 6
7 is attached to the ridge and is arranged in the center of the machine body. Therefore, as shown in FIG. 7, the multi-cutter 67 advances the central part in the left-right direction in one stroke of the reciprocating work of double-ridge cultivation to move the center of the multi-film Cut into two.

[0020]

Since the present invention is constructed as described above,
It has the following effects. That is, the multi-press roller of the self-propelled root vegetable harvester adjusts the position according to the height of the ridge by adjusting the support part up and down, and when pulling out the root vegetable, the multi-film is pressed by the rollers from both sides of the root vegetable. , It is not necessary to pull in the mulch film at the same time into the feeding device, and the mulch cutter divides the mulch film into two in the center of the ridge cultivation covered with the mulch film. The mulch film is stripped from the center without removing the soil holding it, and the work efficiency of the mulch film recovery work is improved.

[Brief description of drawings]

FIG. 1 is a side view of a self-propelled root vegetable harvester of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is a plan view showing a positional relationship between a pulling conveyor B and a placing conveyor D.

FIG. 5 is a side view of a mounting portion of a multi-press roller.

FIG. 6 is a front view of a multi-holding roller and a multi-cutter portion.

FIG. 7 is a plan view of the same.

[Explanation of symbols]

 A digging device B drawing conveyor D loading conveyor E leaf cutting device F storage container 9 digging blade 62 roller support part 63 roller 65 multi-pressing roller 66 cutter arm 67 multi-cutter

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mikio Matsui 428 Enami, Okayama City Seiray Industrial Co., Ltd. (72) Inventor Yukihiro Fukuda 428 Enami Okayama City Seirei Industrial Co., Ltd. (72) Inventor Hiromi Togawa 1-32, Chayamachi, Kita-ku, Osaka-shi, Osaka Prefecture Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Akemi Okura 2828 Natsumi, Nabari City, Mie Prefecture Takakita Co., Ltd.

Claims (1)

[Claims] 1. A root vegetable harvester that digs up root vegetables by a digging device and conveys them rearward while conveying them by a pulling conveyor, wherein a multi-holding roller is provided in front of and below the pulling conveyor behind the digging device. A self-propelled root crop harvester characterized in that an arm is provided so as to project laterally from a roller support portion of a multi-push roller on the center side, and a multi-cutter is arranged on the arm.