JPH0937628A - Structure to support sorting conveyor of self-propelled root crop harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the maintainability of a transmission case and a battery placed under a lower conveyor for transferring a root crop harvested by a root crop harvester to a container and under a sorting conveyor. SOLUTION: Root crops are dug out at the right or left side of a traveling machine body. The root crop is transferred backward, the leaf part is cut off and the root part free from the leaf part is placed on a lower conveyor 48 and transferred backward. The crop is transferred right or left with a lateral transfer roller 49, treated with a sorting conveyor 50 and dropped into a holding vessel. The lower conveyor 48 is integrated to the sorting conveyor 50, a pivoting shaft 78 is placed at the right or left side of the lower conveyor 48 and the sorting conveyor 50, and the lower conveyor 48 and the sorting conveyor 50 are made to be swivelable to the back.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage of a mission case and a battery, which are arranged below a conveyor for conveying harvested root vegetables to a container by a self-propelled root vegetable harvester that mechanically harvests root vegetables. The present invention relates to a configuration that improves the maintainability of parts.

[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, Withdrawing while conveying the root vegetables diagonally upward by sandwiching the root vegetables from both sides with the belt of the extraction conveyor, a cutter is placed at the rear end of the conveyor, and the root of the root vegetables is cut by the cutter, Root vegetables dropped on the lower conveyor,
It is configured to be delivered to a sorting conveyor, and the root vegetables after sorting by the sorting conveyor are stored in a storage container. As shown in FIG. 5, the conventional supporting structure of the lower conveyor 48 and the sorting conveyor 50 has rod-shaped pipe stays 19, 19 ... Standing above the main frame 1 and fixed by bolts and nuts. The lower conveyor 48 and the sorting conveyor 50 are fixed to the pipe stay 19 by using bolts and nuts 18.

[0003]

In the conventional root vegetable harvester, below the lower conveyor 48 and the sorting conveyor 50, a hydraulic control valve 72 for driving a battery 70, a hydraulic cylinder and the like, and a left and right crawler traveling device are arranged. A mission case 61 to be driven is provided, and when maintenance is performed on the mission case 61, the operator must put his / her hand in a narrow space to perform work, or the pipe stay 19
Remove the bolts and nuts 18 from each conveyor 48.
I was working with 50 removed. In the former, it is difficult to perform complicated maintenance work,
In the latter case, the work is time-consuming and complicated. Therefore, a structure having improved maintainability of these parts has been desired.

[0004]

The present invention uses the following means in order to solve the above problems. That is, the root vegetables are dug up on the left and right sides of the traveling machine body, conveyed to the rear to cut the leaves of the root vegetables, and the root portion after the leaf portions are conveyed laterally to be accommodated in the storage container. An orthogonal transport device composed of a transport conveyor that receives the root portion and a sorting conveyor that inherits the root portion and transports it to the left and right sides is arranged at the rear of the machine body, and a pivot shaft is provided on the terminal side of the sorting conveyor, and the orthogonal transport is performed. The device is configured to be rotatable rearward about a pivot.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an overall 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 partial rear view showing a supporting structure of a lower conveyor and a sorting conveyor of the present invention, and FIG. FIG. 5 is a partial plan view showing the supporting structure of the sorting conveyor and FIG. 5 is a partial rear view showing the supporting structure of the conventional lower conveyor and sorting conveyor.

From FIGS. 1 and 2, a self-propelled root vegetable harvester, in particular,
The overall configuration of the root vegetable harvester, which is mainly for carrot harvesting, will be explained. First, a crawler-type traveling device 2 is disposed below a horizontally arranged main frame 1, and a driving operation unit A is disposed on the right front (right side in the traveling direction) of the main frame 1. I have. The driving operation unit A has a front column 4 standing upright at the front, and a steering and excavating device F above the front column 4.
An operating lever 5 is provided so as to be able to simultaneously perform an ascending / descending operation, and an accelerator lever 15 is provided on a side portion. A side column 3 is erected on a side portion of the front column 4, and a main shift lever 12 and a sub shift lever 13 are provided on the side column 3.
And the work clutch lever 14 is projected. A driver's seat 7 is disposed behind the front column 4, an engine compartment is disposed below 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 table 8 is mounted on the upper part of the engine cover 6.

A mechanism for digging root vegetables on the left side of the main frame 1, transporting the root vegetables backward, and cutting off the leaf portion,
A mechanism for accommodating the root portion in the container 10 is arranged at the rear portion thereof. That is, 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 40 for pulling up the root portion of the root vegetable, and a dug device for dug up the root vegetable in the soil therebelow. F, raising device 4
0, a pulling conveyor 30 for sandwiching and transporting the root vegetables that have been dug up from the rear, a cutting section 47 behind the pulling conveyor 30, and a sorting conveyor 50 for transporting to a side container.
Consists of

Each device of this series of root vegetable harvesting device will be specifically described. First, the excavating device F is provided with rotating fulcrum shafts 20 and 21 on the upper and lower portions of the front end of the main frame 1.
The rear portions of the upper link 22 and the lower link 23 are pivotally supported by the pivot 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.
The lift cylinder 27 is connected to a lift cylinder 27 composed of a hydraulic cylinder, and can be raised and lowered by operating the lift cylinder 27. An eccentric cam is provided between the rear portion of the upper link 22 and the rotation fulcrum shaft 20, and the rotation fulcrum shaft 20 is driven by an output pulley 29 of the engine through a clutch and a belt to rotate the rotation fulcrum shaft 20. The sub-soiler 24 can be driven to vibrate by vibrating the soil from below the root vegetables to lift the root vegetables and facilitate the extraction.

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 32 projecting upward from the main frame 1. The support body 32 includes a left and right rotating shaft 3
2a and a vertical turning shaft 32b are integrated members. The pull-out conveyor 30 is rotated up and down around a vertical rotation shaft 32b by using the elevation of the excavator F so that the pull-out height can be changed or lifted. Further, as shown by the chain double-dashed line (30 ′) in FIG. 2, the left and right rotation shafts 32a are rotated by an angle θ,
The power transmission mechanism B can be opened.

The pull-out conveyor 30 is a transfer frame 3
0L and 30R are arranged parallel to each other in the front-rear direction and inclined to the front and rear and rear and high, and the lower rear surface of the transport frames 30L and 30R is supported by the conveyor support frame 31. Pulleys 33 are provided on both front and rear ends of the transport frames 30L and 30R.・ 33
Is arranged, and the guide pulleys 34, 34 ,.
. Is arranged, and the conveyor belts 30a and 30a are provided on these pulleys.
Is provided, and an auxiliary transport conveyor 36, in which a pair of left and right transport belts are wound, is provided on the lower surface of the pull-out conveyor 30 from the middle portion to the rear portion, and holds the root side of the leaf portion. Also,
Star wheel 37, 37 on top of the front end of the pulling conveyor 30
Is arranged and the leaves of root vegetables are scraped.

The connecting arm 55 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 on the left and right sides, and the root portion of the root vegetable is pulled upward in the center. Then, the raising device 40
The connecting plate 56 projects further forward and the pulling device 41
Is fixed. Like the pulling device 40, the pulling device 41 has belts protruding from the tines 41a, 41a, ... .

A gauge wheel 43 is arranged on the front side of the raising device 40. This gauge wheel 43
It is rotatably supported by the tip of a support arm 42 protruding laterally of the raising device 40. The gauge wheel 43 is configured to be adjustable in vertical height with respect to the support arm 42, and when the height of the crawler and the gauge wheel are different, a pretreatment device including a raising device 40 and a pulling device 41, and a withdrawal device. The height of the conveyor 30 can be adjusted, and the nipping position of the root of the root vegetable can be adjusted.

Further, a scraping single shaft 57 is pivotally supported at the upper end of the pulling device 40, and a scraping twin shaft 58 is pivotally supported at the upper end of the pulling device 41. On the other hand, a power transmission case 59 is arranged in the front-rear direction on the side surface of the machine body. In the rear part of the power transmission case 59, a rotation fulcrum shaft 60 is pivotally supported, and in the front part of the power transmission case 59, the outer ends of the above-mentioned sweep-in single shaft 57 and sweep-in two shafts 58 are pivotally supported. Then, the power of the rotation fulcrum shaft 60 is transmitted through the pulley and the belt in the transmission case 59 to the trapping one shaft 57 and the trapping two shafts 58 which are pivotally supported forward, and the raising device 40 and the raising device 40 are pulled up. The belt of the device 41 is rotating.

At the rear of the pull-out conveyor 30 and the auxiliary transport conveyor 36, a leaf discharge conveyor 44 extends horizontally rearward in the front-rear direction. In the middle of the auxiliary transfer conveyor 36, a horizontal conveyor 45 is extended rearward in the front-rear direction horizontally, and below the horizontal conveyor 45, an upper guide body 46 for guiding root vegetables is provided. A cutting portion 47 is arranged at the rear end portion of the upper guide body 46. In this way, the leaf portion of the root vegetables conveyed by the auxiliary conveyance conveyer 36 is taken over by the horizontal conveyor 45 and conveyed backward while the upper end of the root portion of the root vegetables is positioned and cut by the cutting unit 47, and the root portion is arranged below it. The leaves are dropped onto the installed lower conveyor 48, and the leaves are conveyed to the leaves discharging conveyor 44, passed through the residual leaves discharging path 68a formed in the rear part, and dropped to the field scene. The residual leaf discharge path 68a is formed in the rear part of the cover 68 on which the pulling conveyor 30, the horizontal conveyor 45, and the leaf discharging conveyor 44 are mounted. The residual leaf discharge path 68a is shown in FIG.
As shown in FIG. 5, the lower conveyor 48, the lateral feed roller 49, and the sorting conveyor 50, which constitute the orthogonal transport device described later, are rotated backward by rotating the fulcrum shaft 67 upward or by making it removable. Interference can be avoided.

As shown in FIGS. 3 and 4, the lower conveyor 48 constituting the orthogonal conveyor comprises a wide belt conveyor, which is horizontally arranged from the lower rear of the auxiliary conveyor 36 to the rear thereof. A transverse feed roller 49 is disposed diagonally on the middle portion of 48.
The lower conveyor 48 drives the root vegetables to be sent backward, rotates the lateral feed roller 49 in accordance with the feeding, and arranges so that the root vegetables fall to the front part of the lateral feed roller 49. The rotation of the feed roller 49 and the drive of the lower conveyor 48 cause the root vegetables to drop onto the side selection conveyor 50. The driving force of the lower conveyor 48, the lateral feed roller 49, and the sorting conveyor 50 is input from the engine E from an input pulley 69 via a pulley and a belt.

The sorting conveyor 50 is a wide roller conveyor which is disposed in the left and right directions at the rear of the machine so as to remove the soil attached to the root vegetables while feeding it sideways. A container mounting table 54 is arranged below the end of the sorting conveyor 50, and the container 10 is mounted on the container mounting table 54. Further, container stands 53, 53 ... Are arranged on the side of the machine body so that a container full of root vegetables or an empty container can be placed.

Further, a cover 64 is provided so as to cover the rear surface of the sorting conveyor 50, and a safety lever 52, which is longer than the lower part of the cover 64 in the machine width direction, projects rearward and upward, and the safety lever 52 extends in the front-rear direction. The safety lever 52 is rotatable, and a switch or wire for stopping the engine is connected to a rotation base of the safety lever 52 so that the engine stops when the safety lever 52 is rotated forward. Then, the clutch lever 5 for stopping only the selection conveyor 50 on the right side above the cover 64
1 is provided so that the sorting conveyor 50 can be stopped at the time of work.

Conventionally, the sorting work on the sorting conveyor 50 is premised on working from the rear of the machine body, and as shown in FIG.
Was disposed in the center of the cover 64 formed on the sorting conveyor 50 in the left-right direction. In the present embodiment, as shown in FIG. 3, by arranging the clutch lever 51 at the right end portion of the cover 64, an auxiliary work for replacing the container 10 full of root vegetables from the right side of the machine body. The clutch lever 51 is arranged in the vicinity of the worker so that the auxiliary worker can operate the clutch lever 51.

A battery 70 is provided on the upper surface of the main frame 1 below the lower conveyor 48. At the front position thereof, an HST transmission device arranged in the front part of the mission case 61, a hydraulic control valve 72 for controlling the oil supply to the hydraulic cylinder 27 for the up-and-down drive of the excavator F, and the like are arranged. There is. Below the sorting conveyor 50, the left and right crawler traveling devices 2,
A transmission case 61 for transmitting the driving force to the vehicle 2 is provided.

Next, the supporting structure of the orthogonal conveying apparatus according to the present invention will be described with reference to FIGS. The orthogonal conveying device is fixedly mounted on the frame 74 and is integrally configured. Then, on the upper surface of the main frame 1, as shown in FIG. 4, a supporting column 75 is projected upward at the left end portion, the frame 74 of the lower conveyor 48 is placed, and it can be fixed by a lock mechanism (not shown). I have to. Further, a pivot shaft 78 is provided so as to project downward at the right front portion of the sorting conveyor 50, and the pivot shaft 78 is rotatably fitted on a cylindrical body 79 standing upright from the main frame 1. There is. However, it is also possible to arrange the pivot shaft 78 on the left side and rotate the orthogonal conveyance device to the left rear to open it.

With this configuration, the belt wound around the input pulley 69 is removed, and the frame 74
The lock mechanism is released to connect the lower conveyor 48 and the sorting conveyor 50, which constitute the orthogonal conveying device, to the pivot shaft 78.
It becomes possible to integrally rotate backward about the center of the battery, and to easily rotate it to the position shown by the chain double-dashed lines 48 ', 50' in FIG. 2 to open the rear part, and to maintain the battery 70, the mission case 61, etc. To make it easier. Also,
Since the residual leaf discharge path 68 is configured to be rotatable upward, it does not interfere when the sorting conveyor 50 and the lower conveyor 48 are rotated.

[0023]

Since the present invention is constructed as described above,
It has the following effects. That is, it is possible to easily rotate the orthogonal conveying device including the lower conveyor and the sorting conveyor backward without disassembling bolts and the like and disassembling each conveyor, thereby making it cramped. No complicated work, no complicated work such as removing bolts, work time is shortened, and maintenance of each work part such as battery, hydraulic valve, mission case, etc. arranged under the conveyor is easy. You will be able to do it.

[Brief description of drawings]

FIG. 1 is an overall 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 partial rear view showing a supporting structure for a lower conveyor and a sorting conveyor according to the present invention.

FIG. 4 is a partial plan view showing a support structure for the lower conveyor and the sorting conveyor.

FIG. 5 is a partial rear view showing a conventional support structure for a lower conveyor and a sorting conveyor.

[Explanation of symbols]

 1 Main Frame 30 Pulling Conveyor 47 Cutting Section 48 Lower Conveyor 49 Traverse Roller 50 Sorting Conveyor 78 Pivot Shaft

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yosaburo Narahara 1-32, Chaya-cho, Kita-ku, Osaka City, Osaka Prefecture Yanma Agricultural Machinery Co., Ltd. (72) Keita Uekubo 1-chaya-cho, Kita-ku, Osaka City, Osaka Prefecture No. 32 Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Tomoyoshi Hirose 1-1 Chaya-cho, Kita-ku, Osaka City, Osaka Prefecture No. 32 Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Shigeki Murata No. 1 Chaya-cho, Kita-ku, Osaka City, Osaka Prefecture No. 32 Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Toyonori Sato 684 Nakatate, Okayama-shi, Okayama Kobashi Kogyo Co., Ltd. (72) Inventor Toru Abe 684 Nakatate, Okayama-shi, Okayama Kobashi Kogyo Co., Ltd. (72 ) Inventor Nobuyuki Takazo 684 Nakamata, Okayama, Okayama Kobashi Kogyo Co., Ltd.

Claims (1)

[Claims] 1. A configuration in which root vegetables are dug up on the left and right sides of the traveling machine body, conveyed to the rear to cut the leaf portions of the root vegetables, and the root portions after the leaf portions are conveyed laterally and accommodated in a storage container, A conveyor conveyer that receives the root after cutting, and a Cartesian conveyor that is composed of a sorting conveyor that inherits the root and conveys to the left and right sides are arranged at the rear of the machine body, and a pivot shaft is provided on the terminal side of the sorting conveyor. A structure for supporting a selection conveyor of a self-propelled root crop harvester, characterized in that the orthogonal conveying device is configured to be rotatable rearward about a pivot.