JP3489785B2 - Onion harvester - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled onion harvesting machine of the walking control type for digging and collecting onions from a field. 2. Description of the Related Art A root crop harvesting machine is known which is constructed so that root crops planted in a field are dug up and bound, and after bundling, the tip of the foliage is cut and removed. (See, for example, JP-A-61-81715). [0003] In a conventional onion harvesting machine, a root crop that is suspended by sandwiching a portion near the tip of a leaf stem is bound. There is a problem that the posture tends to be disturbed and tying errors etc. are likely to occur.In addition, by changing the length of the leaf stem remaining on the root side, root crops are tied or discharged without tying However, there is a problem that the range of use is limited and post-processing is troublesome. SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above-mentioned problems. In order to achieve the object, an onion harvesting machine having the following technical means has been provided. ing. Harvesting work section B to be mounted on a walking control type self-propelled vehicle A
The lifting and transferring device 15 is composed of a foliage holding and transferring device 15a that is inclined to the front and rear and high and a neck holding and conveying device 15b installed below the foliage and holding and transferring device 15a. The holding and conveying device 15b is provided with the foliage holding and transferring device 15a.
And a chain case 34 interlocking with the scraping device 13 is provided, and a transmission shaft in a transmission case connected to the rear portion thereof is driven to rotate and interlock with each other. A cutting device 17 for separating foliage, which is constituted by a rotary blade facing the foliage, is disposed above the neck holding and transporting device 15b, and the rotary blade serving as the cutting device 17 is positioned below the foliage holding and transferring device 15a. Near and Neck Nipping and Conveying Device 15
The position of the onion C can be freely adjusted in the vertical direction between the vicinity of the upper part b and the foliage part C1 of the onion C planted in the field. The weeding device 12 composed of a tine projecting and retracting vertical separating device 12b sorts and arranges, and is raked by the scraping device 13 located at the lower back of the weeding device 12 to remove the lifting and transferring device 15. The cutting device 1 transfers the foliage C1 of the onion C, which is transferred to the foliage holding and transferring device 15a and the neck holding and transferring device 15b of the lifting and transferring device 15 while being transferred to the holding start end.
7 and the transfer of the neck holding and conveying device 15b is completed.
At the end, the foliage C1 was cut by the cutting device 17
Left and right sides of the neck holding and conveying device 15b for feeding the root C2
Diameter larger than the winding diameter of the pair of soft elastic transport endless belts 20.20
An onion harvesting machine provided with a rotating wheel (S) for feeding . There is. Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall side view of a walking control type self-propelled onion harvester according to the present invention, FIG.
FIG. 3 is a schematic rear view of a main part showing a 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, and FIG. 5 shows a modification of the present invention. It is the back schematic of a principal part. In FIGS. 1 and 2, an onion harvesting machine comprises:
A harvesting operation section B is mounted on a walking control type self-propelled vehicle A. The self-propelled vehicle A includes a transmission case 2 having an engine 1 and a transmission mechanism interlocked with an output portion thereof, and a left and right direction connected to a cylindrical case extending left and right from the transmission case 2. , A pair of left and right running wheels 4 pivotally supported by each of the final cases 3, and a left-right main frame 5 disposed in front of the transmission case 2 and the engine 1. And a steering handle 6 extending rearward from the main frame 5. [0007] A work frame is provided in front of the walking-controlled self-propelled 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 each of the lower frames 7 is inclined obliquely rearward and upward with its front end supported. The upper frame 8.8 and the transmission support case 9 connecting the rear ends of the upper and lower frames 8.7 are formed in a substantially triangular frame shape in side view. A weeding frame 10, 10 extending forward from the frame 7; In addition, 1
Numeral 1 denotes a gage wheel which is attached to the weeding frame 10 on the left or right end so as to be able to change the vertical position, and is provided so as to be inclined so as to roll on the slope of the ridge. [0008] Various devices that compose the harvesting work section B include a weeding device 12, a scraping device 13, a chisel 14, a lifting and transferring device 1, and the like.
5, a binding 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 back of each fixed weeding plate 12a. And a tine-inverted vertical sorting / separating device 12b that is installed at an angle from the front to the lower and higher in the position, so that the foliage C1 of the onion C planted in the ridged field is sorted and arranged. ing. The scraping device 13 is located at the lower back of the grass weeding device 12, is inclined forward and backward in a side view, and is arranged in a pair of right and left scrapes arranged in an eight-letter shape 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 scraped 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 has an onion C
After stalking the foliage portion C1, the underground excavation is performed to dig the root portion C2. In the illustrated embodiment, the horizontal blade portion extending from the lower end of the vertical plate portion toward the inside of the fuselage is faced. It is composed of a pair of left and right blades positioned at the same position. The middle part in the vertical direction of the vertical plate portion of each blade is pivotally attached to the work frame so that it can swing back and forth around the pivot 18. Attached. The lifting and transferring device 15 described above includes a foliage holding and transferring device 15a which is inclined forward and backward along the upper frames 8.8, and a foliage holding and transferring device 15a below the foliage holding and transferring device 15a. There is a neck holding transfer device 15b which is installed at a lower front and rear height at a smaller inclination angle than the device 15a. The foliage holding and transferring device 15a is provided with an 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 the opposing contact surfaces of both transport endless belts 19, 19. Apparatus 1
3, the onion C of the onion C inherited from No. 3 is sandwiched 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.
The onion C, which has the foliage C1 clamped by the foliage clamping and transferring device 15a, is conveyed in communication with the focusing passage 16a of No. 6 and is conveyed to the converging passage 16a of the bundling device 16. At the end of transfer of the neck holding transfer device 15b, a soft elastic transfer endless belt 20 is provided.
.Sending rotary body SS with a diameter slightly larger than 20 winding diameters
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, 4 in a substantially triangular space extending rearward in a side view between the a and the neck holding and transferring 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 bundling portions 22 located on the left and right sides of the bundling passage 16a. Nee
The dollar 23 is suspended from the binding transmission case 21. A binding receiver 24 is provided at a position which is appropriately spaced 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 to be bound. Onion C sent to the 16 focusing passages 16a
When the set amount of onion C is focused on the focusing path 16a, the bundling device 16 is operated to bind the onion C group in the focused state. It is supposed to. The tying object receiver 2 in the embodiment shown in FIGS.
Reference numeral 4 denotes a conveyor frame 25 continuously supported on the work frame.
An endless belt conveyor is formed around an endless belt 26. The endless belt conveyor is intermittently set 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. , And the bundle of onions C is sequentially fed backward and discharged. It should be noted that the intermittent 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 instead of the electric motor. In addition to the endless belt conveyor, the bound object receiver 24 may be variously modified as required, for example, 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 circular arc shape (including a shape close to a circular arc). By using the binding object receiver 24 having such a shape, the onion C group can be collectively bundled and satisfactorily bound on the binding object receiver 24. The cutting device 17 is a rotary blade whose cutting action portion faces the holding / transporting path of the foliage holding / transporting 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 is 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 clamping and transferring device 15a for harvesting (see FIG. 3), the foliar clamping and transferring device 15a and the neck clamping and transferring device 15b are used. And foliage C1 of onion C which is transported by lifting
Is cut while leaving the required length of foliage on the side of the root C2, and the cut foliage C1 is transferred to the foliage holding and transferring device 15a.
And the root C2 side is transferred by the neck holding and transferring device 15b, and the focusing path 1 of the binding device 16 is
6a. When the rotary blade, which is the cutting device 17, is lowered near the upper portion of the neck holding and transferring device 15b and the harvesting operation is performed, the length of the foliage remaining on the root C2 side is about 5 mm.
The cut onion C is cut to about 0 mm, and the onion C after cutting the foliage is sequentially fed back on the tied object receiver 24 without being tied and discharged from the rear end of the tied object receiver 24 (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 driving case is mounted on the counter shaft 31. And a binding drive case 33 are provided.
The above-described transmission support case connected to the transport unit drive case 32.
A pair of left and right soft elastic transport endless belts 19 in the foliage holding and transporting device 15a of the lifting and transporting device 15 are respectively driven to rotate in predetermined directions by a drive shaft extending upward through the inside of the web 9. Is configured. When the soft elastic endless belts 19 of the foliage holding and transferring device 15a rotate, the pair of left and right endless bands of the raking device 13 also rotate in conjunction with the rotation. And a foliage clamping and transferring device 15a
And a chain case 34 interlocked with the scraping device 13. A transmission shaft in a transmission case connected to the rear portion is driven to rotate the endless transfer belts 20, 20 of the neck clamping transfer device 15b. At the same time, a plurality of sets of the vertical turning and separating devices 12b are driven to rotate. The left and right shaft ends of the counter shaft 31 protrude outward from the transport drive case 32 and the binding drive case 33, respectively. Are mounted, 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 to reciprocate the chisel 14 in the front-rear direction at a predetermined amplitude. According to the present invention, the lifting and transferring apparatus 1 of the harvesting work section B to be mounted on the walking operation type self-propelled vehicle A is claimed.
5 is a foliage holding and transferring device 15a that is inclined to the front low and high
And a neck holding and conveying device 15b installed below the foliage holding and transferring device 15a.
5b is the foliage holding and transferring device 15a and the scraping device 13
A chain case 34 is provided which is interlocked with the transmission blade, and a transmission shaft in a transmission case connected to the rear portion is driven to rotate and cooperate with the transmission shaft. Is arranged above the neck holding and conveying device 15b, and the rotary blade as the cutting device 17 is moved to the foliage holding and transferring device 15.
The position of the onion C can be adjusted in the vertical direction between the vicinity of the lower side of the a and the vicinity of the upper part of the neck holding / conveying device 15b. In a weeding device 12 composed of a tine projecting and retracting vertical separating device 12b that is inclinedly mounted at the front low and high heights, the weeding device 12 comprises The foliage of the onion C which is raked and transferred to the clamping start end of the lifting and transferring device 15 and is lifted and transferred by the foliage holding and transferring device 15a and the neck holding and transferring device 15b of the lifting and transferring device 15. When C1 is cut by the cutting device 17,
At the end of transfer of the neck holding and conveying device 15b,
Feeding the root C2 from which the foliage C1 has been cut by the cutting device 17
A pair of left and right soft elastic transfer of the neck holding transfer device 15b
Feeding rotary body with a diameter larger than the winding diameter of the endless belt 20.20
An onion-harvesting machine characterized by being provided with (S) .
Thus, the following effects can be obtained. That is, according to the present invention, since the lifting and transferring device 15 is constituted by the foliage holding and transferring device 15a and the nipping and transferring device 15b arranged below the foliage holding and transferring device 15a, the foliage after cutting is obtained. And the root side can be transported separately, and the cutting device 17 for separating the foliage is disposed above the nipping and transporting device 15b, so that the onion can be transported while nipping the foliage, and the onion can be removed. No damage. Also,
The rotary blade, which is the cutting device 17, is moved to the foliage holding and transferring device 15.
The position of the onion can be freely changed in the vertical direction between the vicinity of the lower side of the a and the vicinity of the upper part of the neck holding and conveying device 15b. The length of the part can be changed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of a walking control type self-propelled onion 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 walking operation type self-propelled onion harvester according to the present invention. FIG. 4 is a schematic rear view of a main part showing another working mode of the walking operation type self-propelled onion harvester according to the present invention. FIG. 5 is a schematic rear view of a main part showing a modification of the present invention. [Description of Signs] A walking control type self-propelled vehicle B Harvesting work part C Onion C1 Onion foliage C2 Onion root S Rotating wheel 15 Lifting transfer device 15a Foliage holding transfer device 15b Neck holding transfer device 16 Bundling device 16a Focusing passage 17 Cutting device 21 Binding transmission case 22 Knot 23 Needle 24 Binding object receiver

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01D 13/00-33/14

Claims (1)

(57) [Claims 1] A foliage holding device that tilts a lifting and transferring device 15 of a harvesting work unit B mounted on a walking operation type self-propelled vehicle A to a front low and rear high. Transfer device 15a and foliage pinching transfer device 15a
And a neck case transfer device 15b installed below the chain case 34. The neck case transfer device 15b is linked to the foliage holding device 15a and the scraping device 13.
And a driving shaft in a transmission case connected to the rear portion thereof is driven to rotate and interlock with each other.
And a cutting device 17 for separating foliage, which is constituted by a rotary blade facing a holding transfer path in the middle of transfer, is held by a neck holding transfer device 15.
b, the rotary blade, which is the cutting device 17, is capable of adjusting the position in the vertical direction between the vicinity near the lower side of the foliage holding and transferring device 15a and the vicinity near the upper portion of the neck holding and conveying device 15b. , The foliage C1 of the onion C planted in the field,
The weeding device 12 is composed of a fixed weeding plate 12a and a tine-inverted vertical sorting / separating device 12b, which is installed at the rear of the plant. Is lifted by being squeezed by the squeezing device 13 and passed to the clamping start end of the lifting and transferring device 15, and nipped and held by the foliage holding and transferring device 15 a and the neck holding and conveying device 15 b of the lifting and transferring device 15. The foliage C1 of the onion C to be transferred is cut by the cutting device 17 and the neck holding conveyance device 15b is cut .
At the transfer end portion, the foliage C1 is cut by the cutting device 17.
The neck holding and conveying device 15b for feeding the root portion C2
From the winding diameter of the pair of left and right soft elastic transport endless belts 20.20
An onion harvesting machine further comprising a large-diameter rotary wheel (S) for feeding .