JP3481141B2 - Rhizome harvester - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a rhizome harvester for onions and the like. 2. Description of the Related Art A body is supported at a certain height by running wheels and a gage wheel, and onions vegetated on a ridge surface are sequentially extracted during running of the body. There is a rhizome harvesting machine which operates so as to be conveyed obliquely downward toward a ridge surface by a conveying device for alignment, and is sequentially dropped from a terminal end of the conveyance in a sideways posture in a specific direction. In this type of harvester, the aligning and transporting device is fixed at a fixed position on the fuselage. Therefore, when the height of the fuselage is displaced by raising and lowering the traveling wheels and the gage wheels, the aligning and transporting device is arranged. The device is also displaced in the same manner as the airframe. Onions that are sequentially dropped from the transport end of the aligning transport device while the machine body is running are aligned in a specific orientation on the ridge just after the onions are harvested. . [0005] In the conventional harvester described above, even if the height of the body during harvesting is set to be optimal for extracting onions, it is not necessarily optimal for the conveying device for alignment. It is not, and may be too high or too low. However, if the machine body is too high, the onion dropped from the aligning and transporting device will not change its posture during the fall and land in an accurate specific direction. The onion may not be obtained, or the dropped onion may hit the ground violently and become a wound. On the contrary, if the onion is too low, the onion comes into contact with the ground when the onion is being conveyed by the alignment conveyance device, and the direction of the onion when leaving the conveyance end is disturbed. As in the case of the above, the accurate alignment of the sideways posture may not be obtained. An object of the present invention is to provide a rhizome harvester capable of addressing such problems. According to the present invention, as set forth in claim 1, the body is supported by the running wheels and the wheel, and the rhizome crops vegetated on the ridge surface while the body is running are extracted. In the final stage of the processing step, in the rhizome harvesting machine that conveys the crops inherited from the lower conveying device toward the ridge surface by the aligning conveying device, and drops from the end of the conveying in a specific falling posture. Wherein the alignment transfer device includes a transmission case fixed to the lower transfer device and a first guide wheel fixed to a horizontal input shaft extending from the case, and is swingable around the horizontal input shaft. And a second guide wheel that is mounted on the device frame, and an endless transport belt that is hung between the first guide wheel and the second guide wheel. Belt lower tension In the vicinity of the lower part of the part, two holding guide rods are arranged so as to sandwich this lower tension part from the left and right, and a holding guide rod is provided so that it is displaced in the same body as the device frame, and the transport end falls in the sideways posture The height can be changed and adjusted freely, so that the optimal extraction processing of onions and the like and the optimal alignment processing of extracted onions and the like on the ridge surface are performed. An embodiment of the present invention will be described below. 1 is a plan view of the harvester according to the present invention, FIG. 2 is a front view of the harvester, FIG. 3 is a right side view of the harvester, FIG. 4 is a left side view of the harvester, and FIG. FIG. 6 is an explanatory view of an operation of the harvester in a side view, FIG. 6 is an explanatory view of a power transmission system of the harvester, FIG. 7 is a plan view showing a part of the harvester, FIG. 9 is a perspective view showing a part of the harvester, and FIG. 10 is a sectional view showing a part of the harvester. In FIG. 1 to FIG. 4, reference numeral 1 denotes a vertical weeding and weeding raising device provided at the forefront of the body at predetermined intervals in the left-right direction. In the raising device 1, the foliage w1 of the crop w, such as onion, is swept and caused by the locking projection 1a which is moved obliquely upward f1 shown in FIG. From the tip of each weed raising device 1, a weed rod 2 extends obliquely forward and downward. This weeding stick 2 is for scraping the foliage w1 of the crop w while the body is in progress. Numeral 3 denotes a raking device composed of a pair of right and left raking main portions 4, 4 which orbits the locking projections 4a of each raking main portion 4 from the outer end of the raking device 3 toward the center. By moving and then moving diagonally upward, the foliage w1 caused by the raising device 1 is scraped into the lower center of the raking device 3 and pushed up to the diagonally upward f2 shown in FIG. Reference numeral 5 denotes a drawing and conveying device comprising a pair of left and right drawing and conveying main parts 6 and 6. Each pull-out transporting main part 6 is shown in FIG.
And a plurality of pulleys 6a and 6b shown in FIG. The transport belts 7, 7 of these main parts 6, 6 are arranged so as to face each other, and a pull-out transport path k is formed between the belts 7, 7. The pulling and conveying device 5 pulls a relatively upper part of the foliage w1 scraped by the raking device 3 into a pulling and conveying path k.
At the beginning of the transfer, and then conveyed to the obliquely upward f3 shown in FIG. 5 while being pinched by the pull-out transfer device 5, and in this transfer process, the excavating blade shown in FIG. The crop w on the ridge surface U dug up by 8, 8 is pulled out from the soil. Below the pull-out conveyor belts 7, 7, a lower conveyor 9 is provided as shown in FIG. As shown in FIG. 7, the lower transfer device 9 is a pair of left and right lower transfer main parts 1.
0, 10 and the forward and backward inclination of the pulling and conveying device 5
It is slower than that of Each lower transport main part 10 is formed by looping a lower transport belt 13 around a pair of front and rear end pulleys 11 and 12 provided via a plate frame 101. At this time, the pair of lower transport belts 13 are opposed to each other, and a space between the belts 13 is a transport path k1 below the foliage w1. As shown in FIG. 5 and the like, a cutting device 14 is provided between the pull-out conveying device 5 and the lower conveying device 9, and the cutting device 14 has a disk-shaped rotary cutting blade 140 fixed to an output shaft. It has been done. The cutting device 14 is provided so as to be able to change the fixed height position. Specifically, the cutting device 14 can be changed in position and adjusted along the vicinity of the lower portion of the drawing and conveying device 5. As shown in FIG. 4 and FIG. 5, an aligning transfer device 15 is provided below the pull-out transfer device 5 and at a position subsequent to the lower transfer device 9. The arrangement conveying device 15 is configured as follows. That is, as shown in FIG. 7 and FIG. 8, a transmission case 151 fixed to the lower transfer device 9 and the same body is provided. A generally vertical first pulley 16 is fixed to a horizontal input shaft 152 extending from the transmission case 151. On the other hand, as shown in FIG. 9, a horizontal input shaft 152 is provided with a device frame 153 swingable around the input shaft 152. A free end of the device frame 153 is provided with a spring (not shown). A substantially vertically oriented second pulley 17 which can be displaced toward the first pulley 16 against the elasticity of the first pulley 16 is mounted on the shaft. And, these pulleys 16, 1
An endless transport belt 18 is wound around 7. A support arm 154 extends from a portion of the apparatus frame 153 between the two pulleys 16 and 17 so that the position of the support arm 154 can be changed in a specific direction. An intermediate pulley 155 for pressing from inside to outside is mounted on the shaft. Then, when the lateral input shaft 152 is rotated, the transport belt 18 is rotated.
The lower tension portion 18a moves to the rear downward direction f4. In the vicinity of the lower portion of the lower tension portion 18a, two holding guide rods 2 are sandwiched between the right and left tension portions 18a.
3a and 23b are arranged. These holding guide rods 23
Each of the first and second pulleys a and 23b has an end on the side of the first pulley 16 which is curved forward and downward and has a lower peripheral surface formed of two support rods 15.
6, 156. At this time, the two support rods 156 and 156 are attached to the device frame 15 as shown in FIG.
3 is extended sideways, and then curved downward so that its leading end is guided below the two holding guide rods 23a and 23b. In FIGS. 4 and 9, reference numeral 157 denotes a position holding means for supporting the aligning and conveying device 15 in a fixed manner. This position holding means 157 is
3, a protruding piece a extending obliquely upward from a portion on the second pulley 17 side, and a bolt 15 through the protruding piece a and the elongated hole b1.
8 and a supporting piece c extending obliquely downward from a horizontal frame 159 (see FIGS. 1 and 2) which is a fixing portion of the fuselage and being connected to the intermediate piece b with a bolt 160. Has become. As shown in FIG. 3, FIG. 4, and FIG. 5, between the aligning transfer device 15 and the lower transfer device 9, a forward / reverse transfer device Y is provided. FIG.
As shown in FIG. 8 and the like, a star wheel 21 is attached to a rotation center axis 20 which is the same as the pulley 12 on the rear left side of the lower transfer device 9.
And a guide roller 22 is provided below the pulley 12 on the rear left side of the lower conveying device 9 so as to be freely rotatable around the rotation center axis 20. 7 and 8, etc., 231a, 23
Reference numeral 1b denotes two support guide rods which are fixed to the plate frame 101 of one of the lower transport essential parts 10 by bolts 161 so as to be adjustable in the front-rear direction. These support guide rods 231a, 231b
Is arranged at a height between the guide roller 22 and the pulley 12 in relation to the transport path k1 of the lower transport device 9 and overlaps with the front ends of the sandwiching guide rods 23a and 23b to be continuous. There is something. In FIGS. 1 to 4, 25 denotes a transmission case 2.
An engine fixed to the body 52 and the like, running wheels 26 and 26 are mounted on the body so as to be vertically adjustable around a transmission case 252 and can support the entire body, and 27 in FIG. 5, a bearing portion supporting a drive shaft 28 for transmitting the rotation of the engine 25, 29 a gage wheel for holding the front portion of the body at an appropriate height, and 30 a vertical displacement of the gage wheel 29 with respect to the body. 31 is a steering handle, 32 is a foliage discharge device capable of being transferred from the inside of the upper end of the left pull-out and transporting main part 6 to the outside in the arc direction, and 33 is moved back and forth through a crank 33a described later. It is a connecting rod for vibrating the excavating blade 8 around the fulcrum 34. The power transmission system of the engine 25 is configured as follows. That is, as shown in FIG. 6, the rotation of the engine 25 is transmitted to the transmission case 2 via the rigid transmission member.
51, and then transmitted to the traveling wheels 26 via a transmission case 252 and a final case 253 which extend right and left from the transmission case 251. A transmission case 254 in the front-rear direction is provided at the front of the transmission case 251, and a work output shaft 255 in the transmission case 254 is connected to a rigid transmission system in the transmission case 251 via a work clutch 256.
A horizontal drive case 257 is connected to the transmission case 254, and a horizontal drive shaft 258 in the drive case 257 is provided.
The work output shaft 255 is interlocked with the work output shaft 255 via a bevel gear 259. The left and right ends of the lateral drive shaft 258 are formed with cranks 33a. A worm 260 is provided at the center of the lateral drive shaft 258, and the lateral drive shaft 258 and the pull-out transport drive shaft 28 are interlocked via a worm wheel 261 meshed with the worm 260. The drive shaft 28 is connected to each of the main parts 6, 6
1 is coupled to a pulley 6a at the rear of FIG. 1 via a chain transmission mechanism or the like, and the rotation center shaft 263 of the pulley 6b on the front side, which transmits the rotation of the pulley 6a via the conveyor belt 7, is scraped. And the pulling device 3 and the pulley 11 on the front side of the lower conveying device 9 are linked to each other. A forward drive cylinder 264 extends from the right end of the lateral drive case 257, and the forward drive shaft 265 and the lateral drive shaft 258 in the drive cylinder 264 are connected to the bevel gear 2.
66 and a forward drive shaft 265 and an upper sprocket shaft 2 for rotating the raising device 1
67 are connected via a bevel gear 268. A transmission case 269 for a cutting device is fixedly provided at the rightmost end of the lateral drive case 257, and the inner side surface of the front end of the transmission case 269 is connected to the cutting device 14 by a transmission cylinder 270. The transverse drive shaft 258 and the rotation input shaft of the cutting device 14 are interlocked via a transmission case 269 and a transmission member described below in the transmission cylinder 270. The transmission structure in the transmission case 269 is as follows. That is, a sprocket shaft 271 connected to the lateral drive shaft 258 and the bevel gear 266a is provided at the rear end of the transmission case 269, while a sprocket shaft 272 is provided at the front end of the transmission case 269. An endless chain 275 is wound around the sprockets 273 and 274 fixed to the respective sprocket shafts 271 and 272. The transmission structure in the transmission cylinder 270 is as follows. That is, the universal joints 279 and 279 are attached to the sprocket shaft 272 and each of the rotation input shafts of the cutting device 14.
80, the universal joints 279, 28
0 are connected to each other by a rigid transmission shaft 281. At this time, the rigid transmission shaft 281 can be expanded and contracted by spline fitting (not shown) or the like. The transmission cylinder 270 can be bent at the positions of the universal joints 279 and 280 by disposing flexible tubes at both ends. Next, the operation when the onion w is harvested by the harvester configured as described above will be described. As shown in FIG. 1 to FIG. 4, the left and right traveling wheels 2 are
6 and 26 are located in the grooves on the left and right of the ridge surface U. Under this condition, the height of the entire body is
If it is determined that the driving wheel 26 and the final case 253 are not appropriate, the traveling wheel 26 and the final case 253 are swung upward or downward by an appropriate amount around the transmission case 252 to be fixed. Next, the gage wheel 29 is displaced upward or downward by operating the rotation operation handle 30 as required, and the weeding and weeding device 1, the scraping device 3 and the drawing and conveying device 5 are used for the onion w drawing process. Optimum height. As a result, the aircraft is stably supported at a constant height by the traveling wheels 26, 26 and the gage wheel 29. Thereafter, the transfer end p of the aligning transfer device 15
It is determined whether the height h of 1 (see FIG. 4) is appropriate.
If this is not appropriate, the position holding means 157 is expanded and contracted by operating the bolts 158 and 160 of the position holding means 157. As a result, the aligning transfer device 15 is displaced around the horizontal input shaft 152. At the position where the height of the transfer end p1 is about 10 cm from the ridge surface U, the bolts 158 and 160 are fastened to transfer the aligning transfer. The position of the device 15 is fixed. At this time, the transfer end p of the aligning transfer device 15
When 1 is displaced significantly upward, the transfer start end p2 (see FIG. 9) becomes too far from the rear end of the lower transfer device 9. In such a case, the position of the support arm 154 is adjusted. The position is adjusted so that the intermediate pulley 155 is displaced forward and downward, and the support guide rods 231a and 231b are displaced appropriately backward. Conversely, if the transfer end p1 of the aligning transfer device 15 is greatly displaced downward, the transfer start end p1 becomes too close to the rear end of the lower transfer device 9, but in such a case, the support arm By adjusting the position of 154, the intermediate pulley 155 is displaced rearward and upward, and the position is adjusted such that the support guide rods 231a and 231b are appropriately displaced forward. After these preparations are completed, the various parts are operated and the body is run. As a result, the excavating blades 8 and 8 excavate the ridge surface U at an appropriate depth, and the pulling and conveying device 5 sandwiches the relatively upper part of the foliage w1 and the onion w
And transported to the rear obliquely upward f3. The onion w conveyed in this manner is a foliage w1
Is fed to the transport start end of the lower transport device 9, after which the lower transport belts 13, 13 sandwich the lower part of the foliage w <b> 1 and transport it substantially horizontally rearward. During the transport by the pull-out transport device 5 and the lower transport device 9, the pull-out transport device 5 pulls the foliage w1 upward, while the lower transport device 9 pulls the lower transport belt 1
The ball portion w2, which is the weight portion on the root side, is locked via 3 and 13 to prevent the ball portion w2 from rising. Therefore, the lower transport belts 13, 1
Numeral 3 moves rearward while pinching the neck of the foliage w1, and the pull-out transport device 5 applies a pulling force to the foliage w1 located between the lower transport device 9 and makes it tense. Thus, the foliage w by the lower transfer device 9 and the like
1 advances, the cutting device 14
The cutting blade 145 separates the foliage w1 at a fixed height position, and the onion w thus treated eventually reaches the side-by-side transfer device Y. The foliage w1 that has reached the transfer device Y is moved to the lower transport belt 13 or the support guide rods 23a, 23b on the left side shown in FIG.
And is conveyed backward while being nipped by the conveying belt 18 of the aligning conveying device 15. In this conveying process, the foliage w1 is locked and conveyed by the star wheel 21 and the ball w2 is guided by the guide roller 22 (FIG. 8). ). At this time, the foliage w1 is moved rearward to the left along an arc on the outer periphery of the star wheel 21, while
Since the ball portion w2 is smoothly moved rearward in contact with the peripheral surface of the guide roller 22, the onion w is reliably placed in the sideways position. After the foliage w1 laid down in this manner is nipped by the transport belt 18 and the nipping guide rods 23a and 23b at the transport start end p2 of the alignment transport device 15, the transport belt 18 moves the foliage w1 to the position shown in FIG. As shown in the figure, the sheet is conveyed to the rear obliquely downward f4 while holding the holding guide rods 23a and 23b from above on the upper peripheral surfaces thereof and holding them in the sideways posture in a specific direction. During this transport, the foliage w1 moves inside the curved portions of the two support rods 156 and 156 without receiving a large resistance. At this time, the long support rod 15
6, 156 facilitate the vertical elastic displacement of the holding guide rods 23a, 23b, regardless of the diameter of the foliage w1.
The nipping conveyance between the conveyor belt 18 and the nipping guide rods 23a and 23b can be accurately performed. When the ball portion w2 reaches the transport end of the aligning transport device 15, the aligning transport device releases the foliage w1 and the onion w falls on the ridge surface U. At this time, the ball w
Since the falling distance of No. 2 is extremely small, the foliage w1 reaches the ridge surface U without being changed in the posture held by the transporting device 15 for alignment. Such an operation is performed continuously for each onion w pulled out while the machine is in progress, so that the harvested onion w is placed on the ridge surface U of the running trace of the machine in an accurate specific direction. They are lined up in a lying position. The foliage w separated by the cutting device 14
After the tip portion 1 is further transported upward by the pull-out transport device 5, it is transported laterally by the foliage discharging device 32 and dropped to the side of the machine body. As is apparent from the above examples, the present invention
As shown in claim 1, the body is supported by the traveling wheel (26) and the wheel (26), and during the traveling of the body, the rhizome crop (W) vegetated on the ridge surface (U) is pulled out. In the final stage, the crops (W) inherited from the lower transport device (9) are transported toward the ridge surface (U) by the transport device for alignment (15), and are laid down in a specific direction from the transport end. In the rhizome harvester to be dropped, the transfer device for alignment (15) includes a transmission case (151) fixed to the lower transfer device (9) and the case (15).
A first guide wheel (16) fixed to a lateral input shaft (152) extending from 1), a device frame (153) swingably mounted around the lateral input shaft (152), and a device frame The second guide wheel (17) attached to (153)
And an endless transport belt (18) looped between a first guide wheel (16) and a second guide wheel (17), and a lower tension portion of the endless transport belt (18). (18
Two clamping guide rods (23a) and (23b) are arranged near the lower portion of (a) so as to sandwich the lower tension portion (18a) from the left and right, and the clamping guides are displaced in the same manner as the apparatus frame (153). The rods (23a) and (23b) are provided so that the drop height of the transport end (P1) in the sideways posture can be changed and adjusted freely. It is possible to make the height of the transfer end of the transfer device for alignment (15) below an optimum state, whereby the onion (W) or the like is accurately extracted and aligned on the ridge surface in a specific falling posture. The bundling process of several pieces performed thereafter can be efficiently performed, and the onion (W) or the like that is aligned does not cause a bruise or abrasion at the time of landing. Become. [0058]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a harvester showing one embodiment of the present invention. FIG. 2 is a front view of the harvester. FIG. 3 is a right side view of the harvester. FIG. 4 is a left side view of the harvester. FIG. 5 is a side view operation explanatory view of the harvester. FIG. 6 is an explanatory diagram of a power transmission system of the harvester. FIG. 7 is a plan view showing a part of the harvester. FIG. 8 is a rear view showing a part of the harvester. FIG. 9 is a perspective view showing a part of the harvester. FIG. 10 is a sectional view showing a part of the harvester. [Description of Signs] 15 Alignment transfer device 152 Horizontal input shaft 153 Device frame 155 Intermediate pulley (guide wheel) 157 Position holding means 16 First pulley (guide wheel) 17 Second pulley (guide wheel) 18 Transport belt 18a Lower side Tension portions 23a, 23b Nipping guide rods 231a, 231b Support guide rods 26 Running wheels 29 Gauge wheel U Ridge surface w Onion (rhizome crop) p1 Transport end p2 Transport start

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Akihito Watanabe 428 Enami, Onami, Okayama City, Okayama Prefecture Inside (56) References JP-A-9-322621 (JP, A) JP-A-9-266716 (JP, A) JP-A-11-346521 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01D 13/00-33/14

Claims (1)

(57) [Claims 1] A traveling wheel (26) and a gear wheel (26)
The rootstock crop (W) vegetated on the ridge surface (U) during the running of the fuselage is pulled out, and at the final stage of the processing step, the crop (W) inherited from the lower conveying device (9) is removed. ) Is transported toward the ridge surface (U) by the transporting device for alignment (15), and the rhizome harvesting machine is dropped from the transport end in a specific sideways posture. a conveying device (9) and homologues in a fixed transmission case (151), a first guide wheel which is fixed sideways input shaft extending from said casing (151) (152) and (16), lateral input An apparatus frame (153) swingably mounted around a shaft (152), a second guide wheel (17) mounted on the apparatus frame (153), a first guide wheel (16) and a second guide wheel. (17) Endless transport belt ( 8), and two holding guide rods (23a) (23a) (23a) (23a) near the lower part (18a) of the endless conveying belt (18) so as to sandwich the lower part (18a) from the left and right. 23b) are arranged, clamping guide rods (23a) and (23b) are provided so as to be displaced in the same manner as the apparatus frame (153), and the drop height of the transport end (P1) in the sideways posture can be changed and adjusted freely. Rhizome harvester characterized by what has been done.