JP2759443B2 - Root crop 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 self-propelled root vegetable harvester for digging and collecting onions, carrots and other root vegetable crops from a field.

[0002]

2. Description of the Related Art There is known a root crop harvesting machine configured to dig and bind root crops planted in a field and cut and remove the tips of the foliage after binding. (See JP-A-61-81715)

[0003]

In the conventional root crops, the root crops which are suspended by sandwiching the tip of the leaf stem are held together. There is a problem that tying errors tend to occur due to turbulence, and root crops cannot be tied by changing the length of the leaf stem remaining on the root side, or it can not be discharged without tying Because it was
There was also a problem that the range of use was limited and post-processing was troublesome.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and in order to achieve the object, a root crop harvesting machine has been provided with the following technical means. . A transmission case (2) in which an engine (1) and a transmission mechanism interlocked with an output portion thereof are installed.
Left and right final cases 3 and 3 connected to a cylindrical case extending left and right from the transmission case 2, and a pair of left and right traveling wheels 4 supported by the respective final cases 3.
A self-propelled vehicle A is configured by a left and right main frame 5 disposed on the front side of the transmission case 2 and the engine 1, and a steering handle 6 extending rearward from the main frame 5.
A work frame is provided at the front of the vehicle A, and the work frame is provided.
The plurality of frames extend forward from the main frame 5.
The lower frame 7.7 and the front end of each lower frame 7
Frame 8.8 which is inclined obliquely rearward and upward while supporting the
And the rear ends of the upper frame 8.8 and the lower frame 7.7
A substantially triangular shape in side view with the transmission support case 9 connecting the spaces
Frame, and further forward from each lower frame 7
Is constructed by cast minute grass frame 10, 10 before the working frame min grass apparatus from the front end 12, scraping device 13, chisel 14, elevating transfer device 15, the various compositions apparatus described later and so cutting device 17 In the root crop harvesting machine having the harvesting work section B attached thereto, the weeding device 12 includes
Fixed weeding board 12a fixed to the front end of the
At the rear position of the weeding board 12a, there is provided
It is composed of a vertical separating and sorting device 12b of the in-out type,
Sorting and setting of foliage C1 of root crop C planted in the field
And, the elevating transport apparatus 15 foliage clamping transfer device 15a
And a neck pinching / transporting device 15b disposed below the foliage pinching / transporting device 15a.
A cutting device 17 for separating foliage is disposed above 5b.
The cutting device 17 is located between the foliage holding and transferring device 15a and the neck holding and transferring device 15b, and is capable of adjusting the position in the vertical direction.

According to a second aspect of the present invention, in the root crop harvesting machine according to the first aspect, a binding device 16 is disposed at a transfer end side of a lifting transfer device 15 including a foliage holding transfer device 15a and a neck holding transfer device 15b. And transfer of the cutting device 17
On the lower side, a focusing path 16a for the binding device 16 is provided.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall side view of a root crop harvester according to the present invention, FIG. 2 is an overall plan view, and FIG. FIG. 4 is a schematic rear view of a main part showing another working mode of the harvester of the present invention. FIG. 4 is a schematic rear view of a main part showing another working mode of the harvester of the present invention. It is a schematic diagram.

In FIGS. 1 and 2, the root crop harvesting machine comprises a walking operation type self-propelled vehicle A and a harvesting work section B mounted thereon. The self-propelled vehicle A includes an engine 1 and a transmission case 2 having a transmission mechanism interlocked with an output unit thereof,
Left and right final cases 3 and 3 connected to a cylindrical case extending left and right from the transmission case 2, a pair of left and right traveling wheels 4 supported by each final case 3,
The vehicle includes a left-right main frame 5 disposed on the front side of the transmission case 2 and the engine 1, and a steering handle 6 extending rearward from the main frame 5.

[0008] A work frame is provided in front of the vehicle A, and a harvesting work section B is configured by attaching various composition devices described later to the work frame. The work frame includes a plurality of lower frames 7.7 extending forward from the main frame 5, and upper frames 8.8 inclined obliquely rearward and upward while supporting the front end of each lower frame 7.
And a transmission support case 9 for connecting the rear ends of the upper and lower frames 8.7 to form a substantially triangular frame when viewed from the side.
-It is constituted by extending 10. A gauge wheel 11 is attached to the weeding frame 10 at the left or right end so as to be able to change the vertical position, and is provided to be inclined so as to roll on the slope of the ridge.

The various devices that compose the harvesting work section B include a weeding device 12, a scraping device 13, a chisel 14, and a lifting and transferring device 1.
5, a bundling device 16, a cutting device 17, etc., of which the weeding device 12 includes a fixed weeding plate 12a fixed to the front end of each weeding frame 10 and a rearward position of each fixed weeding plate 12a. It is composed of a tine emergence type vertical sorting / separating device 12b that is inclinedly mounted at the front low and high heights, and sorts and arranges the foliage portion C1 of the root vegetable crop C planted in the ridged field. I have.

[0010] The scraping device 13 is located at the rear lower part of the weeding device 12 and is inclined in the front-rear and rear-high directions when viewed from the side, and is arranged in a pair of right and left squeezing shapes extending forward in a plan view. The foliage section C1 which is constituted by an endless belt and which the weeding apparatus 12 sorts and arranges is swept into the center in the lateral width direction and is passed to the holding start end of the lifting and transferring apparatus 15.

The chisel 14 digs underground to dig the root C2 after the raking device 13 rakes the foliage C1 of the root crop C. In the illustrated embodiment, the chisel 14 is a vertical plate. A horizontal blade extending from the lower end of the blade to the inside of the fuselage is constituted by a pair of left and right blades facing each other.
It is pivotally attached to the working frame so that it can swing back and forth at the center.

The lifting and transferring device 15 described above includes a foliage holding and transferring device 15a which is inclined along the upper frame 8.8 from front to low and rear to high and a lower portion of the foliage holding and transferring device 15a. The device 15a comprises a neck holding device 15b which is installed at a lower front and rear height with a smaller inclination angle than the device 15a. Then, the foliage holding and transferring device 15a is connected to the upper frame 8.
8 includes a pair of left and right soft elastic transport endless belts 19, 19, which are hung around a group of wheels supported on the carriage 8, and the scraping transfer path is formed between opposing contact surfaces of both transport endless belts 19, 19. Apparatus 1
The leaf and leaf portion C1 of the root vegetable crop inherited from No. 3 is pinched and lifted and transferred upward after being inclined.

The neck holding / transporting device 15b is also composed of a pair of left and right soft elastic transport endless belts 20, 20.
6, the root of the root crop C with the foliage C1 being clamped by the foliage clamping and transporting device 15a and transported to the focusing passage 16a of the bundling device 16 by being transported. The transfer end of the neck holding transfer device 15b is provided at the transfer end portion with a feeding rotary body S slightly larger in diameter than the winding diameter of the soft elastic endless belts 20.
・ S is installed.

The bundling device 16 includes a foliage holding and transferring device 15.
The center of gravity is located near the axis of the traveling wheels 4 in a substantially triangular space extending rearward when viewed from the side between the a and the neck holding / transporting device 15b. The bundling device 16 has the bundling passage 16a formed below the bundling transmission case 21 located above the entire device, and the knot portion 22 and the needle 23 located on the left and right sides of the bundling passage 16a. Are suspended from the binding transmission case 21.

A binding receiver 24 is provided at a position which is appropriately separated downward from the knot 22 and the needle 23. The binding receiver 24 is transferred onto the binding receiver 24 by the lifting and transferring device 15 so that the binding device 16 It is configured to place and support the root C2 of the root crop C that is fed to the focusing passage 16a,
When the set amount of the root crop C is focused on the focusing passage 16a,
Upon sensing this, the binding device 16 is activated to bind the root crop C group in the bundled state.

The binding object receiver 2 in the embodiment shown in FIGS.
4 is a conveyor frame 25 that is supported by the work frame.
The endless belt conveyor is constituted by an endless belt 26, and the endless belt conveyor is intermittently rotated at a set time by an electric motor 27 which is turned on and off in conjunction with the intermittent operation of the binding device 16. When driven, bundles of root crops C are sequentially discharged and discharged. The opening drive of the endless belt conveyor may be configured to use a part of the power transmitted from the engine 1 to various devices such as the binding device 16 without using the electric motor.

In addition to the endless belt conveyor, the bound object receiver 24 may be variously modified as necessary, for example, may be formed of a plate or a plurality of parallel bars. When it is formed of a plate-like body or the like, as shown in FIG. 5, it is preferably provided in a cross-sectional shape exhibiting a downwardly convex arc shape (including a shape close to an arc). By using the bundled object receiver 2d having such a shape, the root vegetable crops C can be collectively bundled and satisfactorily bundled on the united material receiver 24.

The cutting device 17 is a rotary blade whose cutting action portion faces the supporting transfer path of the foliage holding and transferring device 15a, and the drive shaft 2 vertically suspended from the drive case 28.
9 is attached to the upper and lower positions so as to be adjustable.
6 are located at the upstream side of the transfer. When the rotary blade, which is the cutting device 17, is positioned near the lower side of the foliage holding and transferring device 15a for harvesting (see FIG. 3), the foliage holding and transferring device 15a and the neck holding and transferring device are used. 15b, the foliage C1 of the root vegetable crop which is nipped and transported is cut while leaving the foliage of a required length on the root C2 side.
5a, the root portion C2 side is transferred by the neck holding transfer device 15b, and is sent into the focusing passage 16a of the binding device 16.

When the rotary blade, which is the cutting device 17, is lowered to a position near the upper portion of the neck holding and transferring device 15b for harvesting, the length of the foliage remaining on the root C2 side is about 5 mm.
The root crop C, which has been cut so as to have a length of about 0 mm, and has been cut off from the foliage, is sequentially fed back on the tied material receiver 24 without being tied and discharged from the rear end of the tied material receiver 24 ( (See FIG. 4).

Next, a transmission mechanism for driving various devices of the harvesting work section B will be described. Mission Case 2 to P
A counter shaft 31 that is rotationally driven by the power transmitted through the TO shaft 29 and the passive case 30 is disposed in parallel along the main frame 5, and the transport unit drive case 32, the binding drive case 33, Is provided,
A pair of left and right soft elastic transports in the foliage pinching and transporting device 15a of the lifting and transporting device 15 is driven by a drive shaft extending upward through the above-mentioned transmission support case 9 connected to the transporting unit drive case 32. The endless belts 19 are each configured to be driven to rotate in a predetermined direction.

When the soft elastic endless belts 19 of the foliage pinching / transporting device 15a rotate, the pair of left and right endless belts of the raking device 13 also rotate in conjunction with the rotation. And the foliage holding and transferring device 15a
And a chain case 34 interlocked with the scraping device 13, and drives a transmission shaft in a transmission case connected to the rear portion thereof to rotationally drive the transport endless belts 20, 20 of the neck holding device 15 b. The set of vertical turning and sorting devices 12b is driven to rotate.

The left and right shaft ends of the counter shaft 31 project outward from the transport drive case 32 and the binding drive case 33, respectively. Eccentric rotators 35 are attached to the respective projecting portions. Each eccentric rotor 35
35 is connected to the upper end of the vertical plate portion of the chisel 14 by connecting rods 36, 36 so that the chisel 14 is reciprocated in the front-rear direction at a predetermined amplitude.

[0023]

As described above, the present invention has the following advantages. According to the structure of the first aspect, the cutting length of the leaf stem can be changed by changing the vertical position of the cutting device 17, so that the cutting process is performed while the leaf stem is left long on the root side. And send it out in a condition suitable for drying the ground, or in some cases, shorten the leaf stem remaining on the root side and send it out.
It is possible that.

According to the second aspect of the present invention, the binding
It is processed and sent out in a condition suitable for drying, and
In some cases, it can be sent without binding
It is.

[Brief description of the drawings]

FIG. 1 is an overall side view of a root crop harvester according to the present invention.

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

FIG. 3 is a schematic rear view of a main part showing a working mode of the root crop harvester according to the present invention.

FIG. 4 is a schematic rear view of a main part showing another working mode of the root crop harvesting machine according to the present invention.

FIG. 5 is a schematic rear view of a main part showing a modification of the present invention.

[Explanation of symbols]

 Reference Signs List A self-propelled vehicle B harvesting section C root crop C1 root crop root C2 root crop root S rotating wheel 15 lifting transfer device 15a foliage pinch transfer device 15b neck pinch transfer tumulus 16 binding device 16a collecting passage 17 Cutting device 21 Bundling transmission case 22 Knot part 23 Needle 24 Bundled object receiver

Continuation of front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A01D 33/02 A01D 25/00

Claims (2)

(57) [Claims] 1. A mission case 2 having an engine 1, a transmission mechanism interlocked with an output portion thereof, and left and right final cases 3.3 connected to a cylindrical case extending left and right from the transmission case 2. A pair of left and right traveling wheels 4 pivotally supported by each final case 3, a left and right main frame 5 disposed on the front side of the transmission case 2 and the engine 1, and a steering extending rearward from the main frame 5. configure the motor vehicle a in such a handle 6, it is provided working frame in the front of the free-running vehicle a, the working frame, the main
A plurality of lower frames 7 extending forward from the frame 5;
7 and the lower frame 7 supports the front end and
Upper frame 8.8 inclined upward, and upper frame
Transmission connecting 8.8 and rear end of lower frame 7.7
The support case 9 and the supporting case 9 form a substantially triangular frame when viewed from the side.
And a weeding frame 10 forward from each lower frame 7.
· 10 is constituted by cast front, from the front end to the working frame
In a root crop harvesting machine which comprises a harvesting work section B by attaching various composition devices described below, such as a weeding device 12, a scraping device 13, a chisel 14, a lifting and transferring device 15, and a cutting device 17,
The weeding device 12 is provided at the front end of each weeding frame 10.
After the fixed weeding board 12a to be fixed and after each fixed weeding board 12a
Tine-in-and-out vertical rotation inclining from front to low and high
And a sorting apparatus 12b.
Was separated捌整figure the foliage C1 of that root crops C, the elevating transport apparatus 15 and the foliage clamping transfer device 15a, the neck clamping transfer device 15b disposed on the lower side of the shoot portion clamping the transfer device 15a
And a cutting device 17 for cutting off foliage is disposed above the neck holding and transferring device 15b.
A root crop harvesting machine characterized in that the position is adjustable between the foliage holding and transferring device 15a and the neck holding and transferring device 15b in the vertical direction. 2. The root crop harvester according to claim 1,
A binding device 16 is provided at the transfer end side of the lifting transfer device 15 including the foliage holding and transferring device 15a and the neck holding and transferring device 15b.
And a collecting passage 16a for the bundling device 16 is disposed on the lower side of the transfer of the cutting device 17.