JP3071743B2 - 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. In the conventional root crop harvesting machine, the root crops in the suspended state are held by sandwiching the portion near the tip of the leaf stem, so that the posture of the root crops at the time of binding is known. There is a problem that tying tends to be confused and tying errors etc. tend to occur.In addition, root crops can be tied by changing the length of the leaf stem remaining on the root side, or it can be discharged without tying. Since it was not possible, the range of use was limited, and there was also a problem in that post-processing was troublesome.

[0003]

SUMMARY OF THE INVENTION The present invention relates to a root crop harvesting machine, wherein the stem and leaves of the root crop which is held and lifted and transferred by the foliage holding and transferring device and the neck holding and transferring device have a required length on the root side. The leaves are cut while leaving the foliage, and the cut foliage is continuously transferred by the foliage holding and transferring device, and the root side is transferred by the neck holding and transferring device.

[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. . The transmission mechanism that drives the harvesting work unit B includes a counter shaft 3 that is rotationally driven by power transmitted from the transmission case 2 via the PTO shaft 59 and the passive case 30.
1 is on the front side of the transmission case 2 and the engine 1
It is arranged in parallel along the arranged main frame 5 facing left and right.
A transport unit drive case 32 is provided on the counter shaft 31, and a lifting shaft is provided by a drive shaft extending upward through a transmission support case 9 connected to the transport unit drive case 32. And foliage pinching and transferring device 1 constituting a part of 15
5a, a pair of left and right soft elastic transport endless belts 19, 19 are configured to be driven to rotate in predetermined directions, respectively. 3 and 3, a pair of left and right traveling wheels 4 pivotally supported by each final case 3, and a steering handle 6 extending rearward, etc., constitute a self-propelled vehicle A, and constitute the lifting and transferring device 15. Between the foliage holding and transferring device 15a and the neck holding and transferring device 15b
And the cutting device 17 is passively connected to the PTO shaft 59.
Via a counter shaft 31 that is rotationally driven through a case 30
Then, it is driven from the drive case 28 .

[0006]

Embodiments of the present invention will be described with reference to the drawings. 1 is an overall side view of a root crop harvester according to the present invention, FIG. 2 is an overall plan view thereof, 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, and FIG. FIG. 5 is a schematic rear view of a main part showing another working mode of the root crop harvester according to the present invention, and FIG. 5 is a schematic rear view of a main part showing a modification of the present invention.

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. 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 configured so that the endless belt is rotated by an electric motor 27 that is turned on and off in conjunction with the intermittent operation of the binding device 16 at a set time. When driven, bundles of root crops C are sequentially discharged and discharged. In addition, 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 adapted to rotary blade cutting action portion faces the clamping transport path of the leaves and stems clamping transfer device 15a, the drive from the drive case 28 which is vertically downward shaft 2
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 harvesting operation is performed with the rotary blade serving as the cutting device 17 positioned near the lower side of the foliage holding and transferring device 15a (see FIG. 3), the foliage holding and transferring device 15a and the neck holding and transferring device 15b are used. Foliage C of root crops that are transported by lifting
1 is cut while leaving the necessary length of foliage on the root C2 side, and the cut foliage 1a is cut into the foliage holding and transferring device 15
a, the root portion C2 side is transferred by the neck holding and transferring device 15b, and is sent to 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, which is rotationally driven by the power transmitted through the TO shaft 59 and the passive case 30, is disposed in parallel along the main frame 5, and the transport shaft 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 85
35 is connected to the upper end of the vertical plate portion of the chisel 14 by a connecting rod 3636 so that the chisel 14 is reciprocally oscillated in the front-rear direction at a predetermined amplitude.

[0023]

As described above, the present invention has the following advantages. The transmission mechanism that drives the harvesting work unit B includes a counter shaft 31 that is rotationally driven by power transmitted from the transmission case 2 via the PTO shaft 59 and the passive case 30 to the transmission case 2 and the transmission case 2.
To the left and right main frame 5 arranged in front of the engine 1
The transport unit drive case 32 is provided on the counter shaft 31 so that the transport unit drive case 32
A pair of left and right soft elastic transport endless belts 19 of a foliage pinching and transporting device 15a constituting a part of the lifting and transporting device 15 is driven by a drive shaft extending upward through the continuously provided transmission support case 9. 19 are configured to be driven to rotate in predetermined directions, respectively, and left and right final cases 3.3 connected to a cylindrical case extending left and right from the transmission case 2.
And a pair of left and right traveling wheels 4 pivotally supported by each final case 3 and a steering wheel 6 or the like extending rearward to constitute a self-propelled vehicle A, and a foliage portion constituting the lifting and transferring device 15 the clamping transfer device 15a and the cutting device 17 between the neck clamping the transfer device 15b is arranged, the cutting device 17, the P
A cow rotationally driven via the TO shaft 59 and the passive case 30
The stem and leaf portion C1 of the root crop that is held and lifted and transferred by the foliage holding and transferring device 15a and the neck holding and transferring device 15b is driven by the drive case 28 via the shaft 31. The foliage 1a is cut while leaving the foliage of a required length on the side of the root C2, and the cut foliage 1a is cut and fed.
Than it is transported subsequently in 5a. In addition, root C2 side
So that they can be continuously transferred by the neck holding transfer device 15b.
It was possible to compose. In addition, the cutting device 17
The drive system could be configured simply.

[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 same.

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]

 A Self-propelled car B Harvesting work part C Root crop C1 Root crop of root crop C2 Root of root crop S Rotating wheel 15 Lifting transfer device 15a Foliage clamping transfer device 15b Neck clamping transfer device 16 Bundling device 16a Focusing passage 17 Cutting Apparatus 21 Bundling transmission case 22 Knot 23 Needle 24 Bundled object receiver

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01D 13/00-33/14

Claims (1)

(57) [Claims] The transmission mechanism for driving the harvesting work unit B includes a counter shaft 31 that is rotationally driven by power transmitted from a transmission case 2 via a PTO shaft 59 and a passive case 30 to the transmission case 2 and the engine 1. Before
Parallel to the left and right main frame 5
A transport unit drive case 32 is provided on the counter shaft 31, and is lifted and transported by a drive shaft extending upward through a transmission support case 9 connected to the transport unit drive case 32. A pair of left and right soft elastic transport endless belts 19, 19 of the foliage pinching and transporting device 15a constituting a part of the device 15
Are respectively driven to rotate in predetermined directions, and left and right final cases 3 and 3 connected to a cylindrical case extending left and right from the transmission case 2, and are pivotally supported by the respective final cases 3. Right and left pair of running wheels 4
And the self-propelled vehicle A with the steering handle 6 extended rearward
And a cutting device 17 is arranged between the foliage holding and transferring device 15a and the neck holding and transferring device 15b that constitute the lifting and transferring device 15, and the cutting device 17 is provided with the PTO shaft 59.
And the counter shaft 3 that is rotationally driven through the passive case 30
1. A root crop harvesting machine driven by a drive case 28 via a first case 1 .