JPH10136738A - Onion harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dissolve the problems that a device part is especially complicated, finish is easily disordered considering the complication of the entire machine and gathering and post-handling after gathering are not easy. SOLUTION: A digging device 28, a transfer device 26 and a cutting device 31 are arranged at the front part of a walking type self-traveling vehicle 10 so as to discharge root crops 27 after cutting off a foliage part. The transfer device 26 is constituted of an upper carrying device 24 for holding and transferring the foliage part 27a of the root crop and a lower carrying device 25 for holding and transferring the neck part 27b of the root crop while preventing the root crop from being moved upwards.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a walking / self-propelled harvester (hereinafter referred to as a harvester) which digs root crops such as onions and carrots from a field, lifts and conveys the digged root crops and collects them. , Onion harvester).

[0002]

2. Description of the Related Art A digging device for digging planted root crops such as onions and carrots from a field, a transfer device for inheriting and transporting root crops sent from the digging device, and a transfer process. There is known a self-propelled onion harvesting machine that has a cutting device for separating foliage from root crops and collects and processes root crops after tapping removal of the foliage by means such as a conveyor. For example, Japanese Utility Model Application
632, and Japanese Utility Model Laid-Open No. 57-192120).

[0003]

The conventional onion harvesting machine disclosed in the above publication corrects the individual root crops to an appropriate posture when cutting the foliage of the root crops dug out of hot water. It requires a special device to cut the foliage while maintaining it, so that the device is particularly complicated and the whole machine is complicated, but the finish tends to be irregular, and the foliage is also difficult. Since the root crops were individually handled even after the cutting process, there was a problem that collection and subsequent handling after collection were not easy.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention has been embodied with the object of obtaining an onion harvesting machine which can eliminate the above-mentioned problems, and has taken the following technical means to achieve the object. I have an onion harvester. In claim 1,
A transmission case 13 containing an engine 12 and a transmission mechanism interlocked with an output portion thereof; left and right final cases 16 and 17 connected to the transmission case 13; and drive wheels 1 pivotally supported by the final cases 16 and 17 respectively.
8 and 19 and a frame 20 which is connected to the transmission case 13 or the final cases 16 and 17 and extends forward.
And a gauge wheel 21 which is disposed in front of the drive wheels 18 and is attached to the frame 20 so as to be able to move up and down, and a steering handle 22 extending rearward and upward from the frame 20 to constitute the walking type self-propelled vehicle 10. At the front of the self-propelled vehicle 10, a digging device 28 for digging underground in a field where root crops 27 are planted, and a transfer device 26 for extracting and transporting the root crops
And a cutting device 31 for separating the foliage 27a from the root crop in the process of being transported, so as to discharge the root vegetable crop after the foliage is separated, and the transfer device 26 holds the foliage 27a of the root crop. The upper transport device 24 transports the root crops and the lower transport device 25 that transports the root crops while holding the neck 27b of the crops while preventing the root crops from moving upward.

According to a second aspect of the present invention, in the onion harvesting machine according to the first aspect, the bundling device 30 is disposed by connecting the convergence passage 29 to the transfer end portion of the lower transport device 25, and the bundling device 30 is provided above the The cutting device 31 is disposed below the upper conveying device 24 to keep the length of the foliage portion 27a at a predetermined length, and the root crops collected in the collecting passage 29 of the binding device 30 are placed. It is configured to perform quantitative binding.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall side view of an onion harvester according to the present invention, and FIG. FIG. 3 is a plan view of a transmission system of the onion harvester according to the present invention, FIG. 4 is an explanatory diagram showing a working state of the onion harvester of the present invention, and FIG. FIG.

The onion harvester of the embodiment is of a walking type, and comprises a self-propelled vehicle 10 and a working unit 11. The self-propelled vehicle 10 includes an engine 12, a transmission case 13 having a transmission mechanism interlocked with an output unit thereof, and transmission cases 14 and 15 extending right and left from the transmission case 13.
And the right and left final cases 16 and 17 connected to each transmission case, and the final cases 16 and 17 respectively.
17, a frame 20 supported by the transmission case 13 and the left and right final cases 16 and 17 and extending forward, and one drive wheel 18.
And a control handle 22 extending rearward and upward from the frame 20 and the like.

The right and left final cases 16 and 17
2 and 4, one of the driving wheels 18 and 19 is biased laterally to a greater extent than the other final case and the driving wheels 16 and 18, as shown in FIGS. By providing the two driving wheels 18.1
9 allows the valleys on both sides of the ridge 23 to be shifted,
In some cases, one final case 17 (16)
In addition, by making the transmission case 15 supporting the drive wheels 19 (18) and the transmission mechanism built in the transmission case 15 extendable and contractible, the position of the drive wheels 19 can be adjusted according to the difference in the width of the ridge 23. Good.

The frame 20 of the self-propelled vehicle 10 is composed of a tubular case 20a horizontally oriented horizontally and a pipe member 2 extending forward from the tubular case 20a.
The working unit 11 is configured by assembling various components into the frame 20. Working unit 11
The components of the upper transport device 24 which is inclined to the front low and rear high
And a lower transporting device 25 provided below the upper transporting device 24 at a lower inclination angle than the upper transporting device 24, and the root crop 2 planted in rows in the ridges 23.
A digging device 28 for digging the 7th group, and a binding device 3 for arranging the convergence path 29 in communication with the transfer end of the lower transport space 25.
0, a cutting device 31 disposed above the binding device 30 and below the upper conveying device 24, and the like, which constitutes the working unit 11 for harvesting the root crop 27.

The upper transfer device 24 has a pair of transfer endless belts 33, 33 of soft elasticity stretched around transfer cases 32, 32 arranged side by side on the left and right, respectively, and a clamp formed between the two transfer endless bands 33, 33. The root route crop 27 is configured to be transported by pinching a portion near the tip of the foliage 27a of the root crop 27 in the transport route A1. Then, the transfer end portion of the sandwiching transfer path A1 is formed to be bent laterally in a plan view as shown in FIG.
Of the root vegetable crop bundle 27c sent out from the collecting passage 29 of FIG.

A pair of left and right scraping devices 35, 35 having endless bands 34, 34 with elastic transport projections are provided at the transport start end side of the nipping transport path A1. At the front part in the traveling direction of 35, a vertical weeding device 36 for separating the foliage 27a of a plurality of rows of root crops 27 planted on the ridges 23 into left and right is installed. A digging device 2 that travels while excavating an appropriate portion below the underground portion of the root crop 27 introduced between the vertical weeding devices 36 is provided below the transport start end of the route A1.
The digging device 28 is provided with a vibrating blade having a convex shape in a plan view (see FIG. 2).

On the other hand, the lower transfer device 25 of the transfer device 26
The neck portion 27 of the root crop 27 is formed by a sandwiching transfer path A2 formed by a pair of left and right soft elastic transfer endless belts 37.
The transfer end of the holding transfer path A2 is positioned so as to enter the converging passage 29 of the bundling device 30 mounted horizontally at a predetermined position of the frame 20. The door 58 of the binding device 30 is located on the lower side of the transfer end.

The illustrated door 38 is designed to open and rotate sideways about a vertical rotation axis.
It may be configured to open and rotate downward about the horizontal image axis. In some cases, the door may be used as a bundle discharge guide plate 39 provided in the rear direction of the converging passage 29 and serving as a door. You may. Further, the upper transport device 24 is located above the binding device 30.
The lower part of the neck 2
7b and the foliage 27a of the root crop 27 in which the foliage 27a is gripped by the upper conveying device 24
A cutting device 31 is provided for cutting off the tip portion of the cutting device. The cutting device 31 may be a fixed blade as shown in the drawing, or may be a driven cutting such as a rotary blade or a reciprocating blade. It may be a blade.

Among the components of the working unit 11 composed as described above, those that are driven by power, that is, are linked to the upper transfer device 24 and the lower transfer device 25 of the transfer device 26 and the front portion of the transfer device 26. Scraping devices 35 to be installed
And the vertical weeding device 36, the digging device 28, the binding device 30
Are driven by a transmission structure as shown in FIG. In the figure, the transmission case 13 to the clutch 3
9, a work output shaft 40 extending forward through a transmission cylinder 41 in the front-rear direction and a cylindrical case 20a of the frame 20.
And is interlockingly connected to a drive shaft 42 that is bearing-supported by the cylindrical case 20a.

A bevel gear mechanism 43 is attached to the drive shaft 42.
The binding input shaft 44, which is interlocked and coupled via the link, extends downward, and is configured to drive the binding device 30 as intended by the power transmitted through the binding input shaft 44, and 30 always provided with a rotating shaft 45
45, the pair of left and right soft elastic transport endless belts 37 of the lower transport device 25 are each configured to be rotationally driven in a predetermined direction.

On the other hand, the bevel gear mechanism 4
Upper transport drive shaft 47.4 interlockingly connected via 6.46
7 are projected upward, and these upper transport drive shafts 47.4 are provided.
7, the pair of left and right soft elastic transport endless belts 33 in the upper transport device 24 are each configured to be rotationally driven in a predetermined direction. Further, the scraping devices 35, 35 are commonly driven to rotate by front shafts 48, 48 each having a ring around which the soft elastic transport endless belts 33 are wound. 36 is also configured to be rotationally driven by a transmission mechanism 49 interlocked with one of the front shafts 48.

Further, cranks 50, 50 are provided at the left and right ends of the drive shaft 42, and the front ends of the pitmen 51, 51 connected to the rear ends, respectively, support the general blades of the digging device 28. The oscillating blade is connected to the oscillating arms 52 so as to reciprocally oscillate the oscillating blade back and forth. Each swing arm 52 is attached to the frame 20 with a fulcrum shaft 53, and the upper part and the lower part swing back and forth around the fulcrum shaft 53. In the illustrated embodiment, the cutting device 31 is used.
Is a fixed blade, so the swinging structure of the cutting device 31 is not shown. However, in the case of a drive-type cutting device, the drive shaft 42 is configured to be driven by transmitting power from the drive shaft 42 by appropriate transmission means. do it.

When the self-propelled walking vehicle 10 is driven as desired in the field where the root crop 27 is planted, the onion harvester constructed as described above is moved to the upper part of the transfer device 26. The transport device 24 maintains the tip portion of the foliage 27a of the root vegetable crop, and the underground portion of the root vegetable crop is dug up by the digging device 28. Thus, the excavated root vegetable crop continues to be pinched by the upper conveying device 24 at the tip of the foliage 27a, and the neck 2
7b is sandwiched by the lower transfer device 25 and the upper and lower transfer devices 2
Focusing passage 2 of binding device 80 with transfer action of 4.25
The root crop is regulated so as not to move upward due to the neck portion 27b being supported by the lower transport device 25. When reaching the focusing passage 29, the length of the foliage 27a from the neck to the upper transport device is maintained at a predetermined length.

When the root crops are collected in the collecting passage 29 of the binding device 30 in such a posture, the tip portion of the foliage of the root vegetable crop is located above the binding device 30 and below the upper conveying device 24. Cutting device 3 disposed at the site
1, i.e., only the tip of the foliage is cut off while leaving the foliage having a length from the neck to the upper conveying device on the root side. Then, the separated foliage portion 27a is carried out to a desired place by the upper transport device, and the root vegetable crop group collected in a predetermined amount in the focusing passage 29 of the binding device 30 is bound, and the root vegetable crop bundle after the binding is collected. Is sent to the required place.

[0020]

The present invention has the following advantages because it is constructed as described above. As described in claim 1, the transfer device 26 holds the foliage portion 27a of the root vegetable crop and transfers it, and the upper transport device 24 holds the neck portion 27b of the root vegetable crop while preventing the root vegetable crop from moving upward. Since it is constituted by the lower transfer device 25 for transferring, the upper transfer device 2
4, the foliage portion is pulled upward, the root portion is held and clamped by the lower transport device 25, and the root crop is transported while being maintained at a constant height without moving upward, and cut at the set height, Root vegetables with a uniform length of stem can be harvested.

According to the second aspect, the bundling device 30 is disposed by connecting the bundling passage 29 to the transfer end portion of the lower transfer device 25, and the bundling device 29 is provided above the bundling device 30 and in the bundling device 30. At the time when the root crops are collected, the cutting device 31 cuts the foliage, so that there is very little trouble in the binding posture of the root crops. Since the foliage of a length is sent out as a remaining bundle, subsequent handling becomes extremely easy.

[Brief description of the drawings]

FIG. 1 is an overall side view of an onion harvester according to the present invention.

FIG. 2 is an overall plan view of an onion harvester according to the present invention.

FIG. 3 is a transmission system diagram of the onion harvester according to the present invention.

FIG. 4 is an explanatory view of a working state by the onion harvesting machine of the present invention.

FIG. 5 is an explanatory view showing a state after the operation of the onion harvester of the present invention.

[Explanation of symbols]

 Reference Signs List 24 Upper transfer device 25 Lower transfer device 26 Transfer device 27 Root crops 27a Foliage of root crops 27b Neck of root crops 28 Digging device 29 Focusing path 30 Bundling device 31 Cutting device 38 Door A1 Nipping transfer route

Claims (2)

[Claims] A transmission case (13) having an engine (12) and a transmission mechanism interlocked with an output portion thereof, and a left and right final case (16) connected to the transmission case (13).
17, drive wheels 18 and 19 pivotally supported by the respective final cases 16 and 17, a frame 20 connected to the transmission case 13 or the final cases 16 and 17 and extending forward, and Gauge foil 21 which is arranged and attached to frame 20 so as to be adjustable
And a steering handle 2 extending rearward and upward from the frame 20.
2 and the like to constitute the walking type self-propelled vehicle 10.
In the front of the root crop, a digging device 28 for digging underground in a field where root crops 27 are planted, a transfer device 26 for extracting and transporting the root crops, and separating the foliage 27a from the root crops being transferred. The cutting device 31 is arranged to release the root crops after the cutting of the foliage, and the transfer device 26 includes an upper transport device 24 that sandwiches and transfers the foliage 27a of the root crops, An onion harvesting machine comprising a lower transport device 25 that transports root crops while holding the neck portion 27b while preventing the root crops from moving upward. 2. The onion-harvesting machine according to claim 1, wherein a bundling device 30 is provided by connecting a convergence passage 29 to a transfer end portion of the lower transporting device 25, and an upper transporting device is provided above the bundling device 30. The cutting device 31
An onion harvesting machine characterized by the arrangement of