JPH0928145A - Driving part of mobile type root vegetable harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form an assist bar while preventing an arm from protruding to the side of operations in a driving operation part of a root vegetable harvester. SOLUTION: This driving part of a mobile type root vegetable harvester is obtained by standing a side column 3 having respective operating levers 5 protruding to the side of a raising up device F of a driving operation part A and further a frame material 18 according to the end face of the side column 3 on the side of the raising up device F, applying a side plate 17 to the frame material 18 and installing a side assist 19 in the front and rear directions in the mobile type root vegetable harvester equipped with the driving operation part A arranged on either of left and right sides of a mobile machine body and a pullout conveyor for digging up the root vegetable and conveying the dug out root vegetables to the rear and the raising up device F installed on the other side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a configuration around a driver's seat with improved workability of a self-propelled root vegetable harvester for mechanically harvesting root vegetables, especially carrots.

[0002]

2. Description of the Related Art Conventionally, self-propelled root vegetable harvesters for harvesting radish and carrots have 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. Place a pulling conveyor, place a digging device consisting of a hoe-shaped subsoiler in front of this pulling conveyor, insert this digging device into the soil, dig up root vegetables from the bottom from the bottom, and pull out. The root part of the root vegetables is sandwiched from both sides by the belt of the conveyor, and the root vegetables are pulled out while conveying the root vegetables diagonally upward, and a cutter is arranged at the rear end of the carrying part, and the root part of the root vegetables is cut by the cutter, Techniques for storing the root portion in a storage container are known. Then, a front column was erected at the front of the driver's seat, a steering lever and the like were projected, a side column was erected on the side of this driver's seat, and a gear shift lever and a working machine clutch were projected. . In addition, a container stand was arranged behind the driver's seat, and an empty container could be placed on it.

[0003]

In this conventional root vegetable harvester, the excavator is raised when traveling or traveling on the road, but the main gear shift lever, the sub gear shift lever, the work clutch lever, etc. Since it was placed on the column, when the subsoiler was raised during the operation, the upper end could hit the arm and the clothes could get dirty. Therefore, in the present invention, the arm does not protrude above the sub-soiler, and the guard serving as an assist bar is provided.

[0004]

The present invention uses the following means in order to solve the above problems. That is, the driving operation unit is arranged on one side of the traveling body,
In a self-propelled root vegetable harvester that has a pull-out conveyor that digs up the root vegetables on the other side and conveys them backward, and a digging device is installed, a side column that projects an operation lever is erected on the digging device side of the operation and operation unit. Then, on the upper surface of the side column on the digging device side, a side assist in which a plate material was attached so as to be flush with the side surface of the side column was provided in the front-rear direction.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS 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 partial front view of the same, FIG. 4 is a skeleton diagram showing a power transmission structure, and FIG. FIG.

The overall construction of a self-propelled root vegetable harvester, especially a root vegetable harvester mainly for carrot harvesting, will be described with reference to FIGS. 1 and 2. First, the crawler type traveling device 2 is arranged below the horizontally arranged main frame 1, and the driving operation section A is arranged on the right front 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 capable of simultaneously operating the steering and raising / lowering the digging device F is projected on the upper part thereof, and an accelerator lever 15 is arranged on the side. ing. A side column 3 is erected on a side portion of the front column 4, and a main transmission lever 12, an auxiliary transmission lever 13 and a work clutch lever 14 are projected on the side column 3. A driver's seat 7 is disposed behind the front column 4, an engine compartment is disposed below and rearward thereof, and an engine E is built in the engine compartment. The engine E includes an engine cover 6
Covered by As shown in FIG. 5, the lower end of the engine cover 6 is pivotally supported by the main frame 1, and the engine cover 6 can be rotated rightward. 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. In other words, the gauge wheel 4 that sets the height of the raising device and the pulling conveyor from the left front part of the main frame 1
3. Lifting device 40 for pulling up the root part of root vegetables, excavating device F for excavating root vegetables in the soil below it, and carrying the root part of the root vegetable dug up from the rear part of the pulling device 40 for conveyance. It comprises a pulling conveyor 30, a leaf cutting device 47 behind the pulling conveyor 30, and a sorting conveyor 50 which conveys to a side container.

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 provided, and the pulling-out conveyor 30 uses the vertical movement of the excavator F to turn up and down about the vertical turning shaft 32b to change the pulling-out height. It is possible to do and lift. Further, as shown by the chain double-dashed line (30 ') in FIG.
The power transmission mechanism B can be opened by rotating around a.

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 heights of the crawler and the gauge wheel are different, a pretreatment device including a raising device 40 and a pulling device 41,
The height of the pulling 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 transport conveyor 36, a horizontal conveyor 45 extends horizontally rearward in the front-rear direction, and below the horizontal conveyor 45, a guide 46 for guiding root vegetables is provided. A cutter 47 is arranged between 46 and the horizontal conveyor 45. The root portion of the root vegetables conveyed by the auxiliary conveyance conveyor 36 is taken over by the horizontal conveyor 45 and conveyed backward while the upper end of the root portion of the root vegetable is positioned, and the leaf portion is cut by a cutter 47 at a predetermined position, and the root portion is Dropped on the lower conveyor 48 disposed below,
The leaves are conveyed to the leaf discharge conveyor 44 and dropped from the rear to the field scene.

The lower conveyor 48 is composed of a wide belt conveyor, and is disposed horizontally from the rear lower part of the auxiliary conveyor 36 to the rear.
A lateral feed roller 49 is disposed in an oblique direction on the middle part. 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.

A clutch lever 51 and a safety lever 52 for stopping only the selection conveyor 50 are arranged at the rear of the selection conveyor 50 to stop the selection conveyor 50. The sorting conveyor 50 is a roller conveyor which is arranged in the left and right directions at the rear of the machine and has a wide width so that the soil adhered to the root vegetables is dropped while being fed to the side. A container mounting table 54 is arranged below the terminal end of the sorting conveyor 50, and the container mounting table 54 mounts the container 10. Further, container stands 53, 53 ... Are arranged on the side of the machine body, and a container full of root vegetables is placed on it.

Next, the power transmission structure will be described with reference to FIG. 4. Three output pulleys 29a are provided on the output shaft of the engine E.
-29b and 29c are fixedly installed, and the power from the engine E is transmitted from the output pulley 29a on the output shaft to the transmission case 61 via the belt and the clutch to drive the crawler traveling device 2.2. . Further, an eccentric cam provided on the rotation fulcrum shaft 20 is rotated from an output pulley 29b on the output shaft of the engine E via a clutch 66 to vibrate the excavator F. The output pulley 29c on the output shaft of the engine E drives the transmission shaft 70 via a belt and a pulley. A drive pulley 72 and a drive gear 73 are fixed to the other end of the transmission shaft 70, and the lower pulley 48, the lateral feed roller 49, and the sorting conveyor 50 are driven from the drive pulley 72 via the clutch 67. I have to. The pull-out conveyor 30 and the pretreatment device are driven from the drive gear 73 via the clutch 65. However, the clutch 6
5 and 67 are interlocked, and power can be turned off at the same time.

The power transmission structure to the pull-out conveyor 30 and the pretreatment device is such that the rotation fulcrum shaft 60 is driven by the drive gear 73 via a gear, a pulley, a belt and a clutch 65.
The drive of the rotation fulcrum shaft 60 is transmitted to the pull-out conveyor 30 via a sprocket, a chain, a bevel gear and the like. A transmission sprocket 60a is fixedly mounted on the rotation fulcrum shaft 60, and the transmission shaft 74 is driven via a chain and a bevel gear. Transmission drive gears 74a and 74b having different numbers of teeth are fixedly mounted on the transmission shaft 74.
On the other hand, speed-change driven gears 75a and 75b that rotate integrally are spline-engaged with a speed-change shaft 75 that is arranged in parallel with the transmission shaft 74, and the speed-change driven gears 75a and 75b slide to slide the speed-change gear. It is possible to change the speed by engaging with one of the drive gears 74a and 74b. A bevel gear 76 is fixed to the end of the speed change shaft 75, and the take-in first shaft 57 is transmitted through the bevel gear 76 to drive the raising device 41. The second take-in shaft 58 is transmitted from the first take-in shaft 57 via a sprocket and a chain to drive the pulling device 41.

Conventionally, the power after shifting by the transmission in the transmission case 61 is transferred to the pull-out conveyor 30.
It was transmitted to each pretreatment device, and was configured to change the working speed according to the vehicle speed. For this reason, when the vehicle speed is reduced, the pulling device 41 cannot sufficiently pull up the leaf portion that has spread laterally and fell. In the present embodiment, as described above, power is directly obtained from the output shaft of the engine E, and the power is transmitted to the pulling-out conveyor 30 and the raising device 40 and the pulling device 41 which are the pretreatment devices. A sufficient lifting effect can be obtained.

The structure of the side assist, which is the main part of the present invention, will be described. As shown in FIGS. 1 to 3, a side assist 19 is formed on the side of the side column 3 on the pulling conveyor 30 side.
A frame-shaped member 18 formed in a gate shape straddles the side column 3 and the front column 2 and is erected on the upper surface side portion in the front-rear direction, and a plate member 17 is attached to the side surface of the frame member 18, The plate material 17
Is arranged in the same plane as the inner side surface (right side surface) of the side column 3 in a front view, and the side assist 19
The sides of the jacket are covered.

This portion to be mounted has its supporting portion at the position where the subsoiler 24 is at the highest position as shown by the chain double-dashed line (F ') in FIG. It is arranged so as to be located above the upper end. Further, the upper portion of the frame member 18 can be used as a handrail (arm rest) 18a so that the arm does not stick out when operating the main shift lever 12, the sub shift lever 13, the work clutch lever 14, etc. on the side column 3. The left arm can be placed or supported when released from the lever. Further, the rigidity of the operation portion A can be increased by the structure in which the front column 4 and the side column 3 are reinforced by the frame member 18.

[0023]

The present invention is configured as described above.
The following effects are obtained. That is, the handrail can be used as an armrest during operation of the machine, and can be operated in a comfortable posture. In addition, when rotating the engine cover or when placing a container on the container base, etc., ensure stability by supporting the body with the handrail when facing backwards in the driving operation part for auxiliary work. it can. Also, when raising the subsoiler,
The left arm does not protrude from the side assist, does not hit the support part of the subsoiler, and the clothes do not get dirty.

[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 front view of the same.

FIG. 4 is a skeleton diagram showing a power transmission structure.

FIG. 5 is a rear view of the engine mounting portion.

[Explanation of symbols]

 A Operation Operating Unit F Digging Device 3 Side Column 4 Front Column 5 Operating Lever 10 Container 17 Plate Material 18 Frame Material 19 Side Assist 30 Pulling Conveyor

 ─────────────────────────────────────────────────── ─── 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 Nakamune, Okayama City, Okayama Prefecture Kobashi Kogyo Co., Ltd.

Claims (1)

[Claims] 1. A self-propelled root crop harvester in which a driving operation unit is arranged on one side of the traveling machine body, and a root conveyor is dug up on the other side, and a pull-out conveyor for carrying the root backward and a dug device are arranged. A self-propelled root vegetable characterized in that a side column having a protruding operation lever is erected on the digging device side of the driving operation section, and a side assist is provided in the front-rear direction on the upper surface of the digging device side of the side column. Harvester operating department.