JP6960682B2 - A long harvester connected to a tractor - Google Patents

Description

In the present invention, the digging blade is connected to the rear part of the tractor, and the digging blade is plowed into the lower end of the grown long one. Gently digs without scratching the long thighs related to the harvester connected to the tractor.

Various long harvesting devices have been conventionally proposed. The grown long potatoes grow to a depth of about 1 meter toward the basement, and the harvesting work is hard work, and at the same time, the long thighs are easily broken and the surface skin is easily scratched. Then, the same application was made as a device that tried to dig a long thigh while plowing the digging blade into the lower end where the long one grew, holding it in a block shape with the cultivated soil around the long one, and floating it toward the rear. 2014-212786 JP has been proposed JP-by human.
The purpose is to reduce the traction resistance of the tractor by arranging an excavation chain in front of the plow member of the excavation configuration described above to form a deep-cultivated ditch. It is a long plow harvesting device that connects to a tractor, which is characterized by arranging excavation chains that excavate above both sides of the digging blade in close proximity in a long digging method that floats together and moves backward. The width of the blade of the digging blade is formed within the inner width of the excavation chain on both sides, and the latter half of the digging blade is widened so as to overlap the groove width of the excavation chain. be.
According to the configuration of the embodiment of Japanese Patent Application Laid-Open No. 2014-212786 described above, since the excavation chains for excavating both sides of the upper portion of the blade portion of the excavation blade are arranged, the propulsion resistance of the left and right plow-in members However, on the other hand, when rocks or stones are included in the field, the excavation blade may bite the stone and damage it, or the excavation chain may collide with the rock and be damaged, and it takes a long time to deal with it. Especially, the interruption of work in a large-scale field caused a great economic loss.
After that, Japanese Patent Application No. 2018-148003 (Patent Document 2) was filed on July 18, 2018 by the same applicant. According to this application technology, "the digging blade is connected to the rear part of the tractor and plowed into the lower end of the grown long one, held in a block shape with the cultivated soil around the long one, and floated backward. However, in a harvesting device for digging long thighs, a narrow groove excavation excavation body is provided at the front edge of the support bars on both sides supporting the excavation blade, and the fine groove excavation excavation body is on a continuous arc from the cutting edge. A long plow harvesting device connected to a tractor, characterized in that the curved surface of the sill rises and its upper end extends above the front edge of the support bar to discharge the excavated soil to the ground surface. "

Japanese Unexamined Patent Publication No. 2014-212786 Japanese Patent Application No. 2018-148003

According to the above-mentioned application technique of Japanese Patent Application No. 2018-148003, the narrow groove excavation excavation body having a curved surface of an arc continuous from the cutting edge by the fine groove excavation excavation body is the fine groove excavation on both sides of the excavation blade body. The soil is discharged to the surface of the ground to form an opening groove, and a U-shaped cultivated soil block is formed and floated backward for harvesting. Therefore, even if there are stones or rocks, they will be gently crossed to the left, right, and above , so there will be no damage. However, viscous soil and heavy clay try to escape to the left and right of the trench excavation excavation body. Therefore, the division and separation of both ends of the cultivated soil block that floats up by the digging blade is insufficient, and it adheres to the side surface of the support bar to increase the tractor's traction load, and when the long potatoes are pulled out, the soil is hard to loosen and it becomes hard work. Was there.

In order to solve the above-mentioned problems, the digging blade is connected to the rear part of the tractor, and the digging blade is plowed into the lower end of the grown long one. In a harvesting device that digs a long thigh while ascending, a narrow groove excavation excavation body is provided in the front green of the support bars on both sides that support the excavation blade, and this fine groove excavation excavation body is continuous from the cutting edge. by placing the bottom plate having an arcuate curved surface, it will attach the swash設刃the leading edge with erecting specifications Setsuban the inner end toward the drilling center of the bottom plate, the narrow groove longer even harvesting device for coupling to the tractor for discharging the excavated soil excavation soil discharge body width on the ground, the swash設刃provided before the green of the specification Setsuban is mounted somewhat inclined rearward, the swash The cutting edge of the cutting blade is a long plow harvesting device connected to a tractor, which is characterized by having a clearance angle toward the center of excavation.

As described above, oblique to the leading edge with fine grooves excavated soil discharge body erecting Setsuban specification is at an inner end of the bottom plate by placing the bottom plate having an arcuate curved surface continuous from the cutting edge Since the structure is provided with a blade attached, a narrow groove opening with a reliable narrow groove excavation body width is formed and the cultivated soil block floats. Therefore, the slip resistance of the inner wall of the support bar was small, the cultivated soil block was loosened well, and it became easy to pull out long objects. Further, specification oblique設刃provided on the front edge of Setsuban is only attached somewhat inclined rearward, the cutting edge when the case soil viscous and heavy clay is provided with the relief angle towards the central portion However, the machinability on both sides of the cultivated soil block is good and does not increase the traction resistance of the tractor.

Is a side view showing a working state in which the present invention is carried out. Is a plan view with some parts omitted Is a floating molding model of a cultivated soil block Is a front view of the formation of cultivated soil blocks Is an exploded view of the excavated excavated body Is a front perspective view of the excavated excavated body Is a plan sectional view of the narrow groove forming part Vacuum cleaner drive explanatory diagram Explanatory drawing of the drive of the fall auxiliary plate

In the embodiment of the present invention, the excavated blade is connected to the rear part of the tractor and plowed into the lower end of the grown long one, held in a block shape together with the cultivated soil around the long one, and levitated toward the rear. However, in a harvesting device for digging long thighs, a narrow groove excavation excavation body is provided at the front edge of the support bars on both sides supporting the excavation blade, and this fine groove excavation excavation body has an arc shape continuous from the cutting edge. by placing the bottom plate having a curved surface, it will attach the swash設刃the leading edge with erecting specifications Setsuban the inner end toward the drilling center of the bottom plate, the narrow groove drilling waste It is a long plow harvester that connects to a tractor, which is characterized by discharging the excavated soil from the soil to the surface.
Also, oblique設刃provided on the front edge of Setsuban specifications in the longer harvesting arrangement mounted somewhat rearwardly inclined, the cutting edge of the swash設刃is a configuration having a square relief towards the drilling center ..

In FIG. 1, reference numeral 1 denotes a rear portion of a four-wheeled passenger tractor. The front part of the machine frame 3 that supports the long digging device 23 is connected to the rear part of the tractor by a three-point link 2. Reference numeral 4 denotes a top bracket, which is rotatably supported with a support shaft 6 laid horizontally in front of the machine frame 3 as a fulcrum. A top link known to the tractor is connected to the front of the top bracket 4. Reference numeral 8 denotes a support bar having a vertically long cross section, which is attached to the left and right sides of the machine frame 3 so as to face downward. At the lower ends of the pair of support bars 8, a digging blade 9 inclined toward the rear is installed. The tip of the digging blade 9 is provided with a blade portion 10, and the drop assist plate 11 forming the rear end is vibrated by the second oil sho motor 22.
Reference numeral 19 denotes a cleaner, which removes the upper surface portion of the cultivated soil block raised rearward by the digging blade 9 to the left and right to project a long neck. Cleaner 19 is swinging to the left and right in Cartesian in the traveling direction by the first motor 18.
Reference numeral 24 denotes a hydraulic cylinder, the support shaft 6 is used as a fulcrum, and the posture of the digging blade body 9 supported by the machine frame body 3 is raised and lowered with respect to the top bracket 4 by expansion and contraction thereof. In particular, it is for securing the above-ground height of the digging blade in the ground.
Reference numeral 7 denotes a narrow groove excavation excavated body, which is arranged at the leading edge of the pair of support bars 8 described above. The narrow groove chisel 12 which constitutes the tip of the excavated soil discharge member 7 is disposed cutting edge vicinity of the drilling-up blade 9, the upper end with the bottom surface plate rises having a continuous arcuate curved surface the support bar 8 Excavated soil is discharged to the ground surface by extending above the leading edge of. Wherein the inner end of a pair of narrow grooves excavated soil discharge member 7 Setsuban and the swash設刃41 specification is equipped. Reference numeral 31 is a long potato, and both sides of the excavation blade body are surely cut and separated by the oblique blade 41 of the narrow groove excavation excavation body of 7, and moved upward together with the cultivated soil block.
FIG. 2 is a plan view in which a part of the present invention is omitted, and FIG. 25 is a lower link, which is connected to both front sides of the machine frame 3. Reference numeral 5 denotes a PTO shaft provided at the rear of the tractor, which directly drives the hydraulic pump 16 and is transmitted to the hydraulic motor 18 by providing a hose of 17. The hydraulic pump 16 drives the first motor 18 and the second motor 22. The first motor 18 is connected to a means for swinging the cleaner of 19 from side to side. The second hydraulic motor 22 vibrates the drop assisting body 11 in the latter half of the digging blade body 9.
9 indicates a digging blade. Reference numeral 7 denotes a fine groove excavation excavated body arranged on both sides of the excavation blade portion 10. Reference numeral 12 denotes a chisel forming the tip of the fine groove excavation excavation body, which is arranged on both sides of the blade portion 10 of the excavation blade body described above. 42 shows a Setsuban specifications provided at an inner end of the thin groove excavated soil discharge member 7. The inclined latter half of the digging blade 9 is configured to be wide so as to overlap the groove width excavated by the narrow groove excavation excavation body 7. Reference numeral 20 denotes a horizontal axis, which is horizontally installed on the machine frame body 3. Reference numeral 21 denotes a pipe shaft that is slidable with respect to the horizontal shaft 20.

FIG. 3 shows a floating molding model diagram of the cultivated soil block 30. The lower ends of the support bar 8 having a vertically long cross section are fixed to both sides of the digging blade 9. The digging blade 9 is provided with a blade portion 10 at the tip, the rear portion is inclined upward, and the rear end is connected to a drop assist plate 11 that is slightly vibrated. The narrow groove excavation excavated body of 7 is fixed to the leading edge of the pair of left and right support bars 8. The narrow groove excavation excavation body 7 is arranged symmetrically, and the chisel 12 at the tip is arranged near the cutting edge of the excavation blade body 9. Bottom surface plate 13 having an arcuate curved surface that is continuous to the rear rise to horizontally chisel 12, excavating surface of A, activities picture B, formed from the discharge face of the C. This is an inner end of the bottom face plate 13 (the drilling center side) against the partition plate 42 standing, this front edge provided oblique設刃41. The upper end of the discharge surface C extends above the leading edge of the support bar 8 to discharge the excavated soil to the ground surface. In this embodiment, when the digging excavation part enters the soil and is propelled, the digging blade 9 bites into the lower part of the long one, and the oblique blades 41 of the left and right narrow groove excavators 7 are the cultivated soil block 30. It is formed by cutting the left and right ends and floated. The swash設刃41 while cutting the soil, specifications Setsuban 42 discharges upward while guiding outward prevented from entering excavated soil is inward. At this time, the discharge surface C discharges the excavated soil to the outside of the narrow groove, so that an opening groove is formed. 32 indicates a narrow groove opening of a trace of passage of the fine groove excavated soil removal body 7, and 30 indicates a cultivated soil block that rises with 31 for a long time. Reference numeral 15 denotes a mounting plate of the narrow groove excavator 7, which sandwiches both side surfaces of the support bar 8 and is fixed by bolts and nuts, and the height of the support bar 8 can be adjusted as desired. Further, according to this fixing means, it can be easily attached to a commercially available harvesting machine of the same type.
FIG. 4 shows a front view of the formation of the cultivated soil block. The narrow groove excavation excavation body 7 on both sides of the excavation blade 9 excavates the ground and cuts the soil together with the propulsion of the oblique blade of 41 to form the fine groove opening 32. At the same time, the blade portion 10 of the digging blade is plowed into the lower end of the growing object, and the cultivated soil block holding the long thigh 31 in the center is integrally formed in a U-shaped cross section. At this time, since the support bar 8 having a vertically long flat plate cross section propels the narrow groove opening (space), it is not subjected to the pressing frictional force of the excavated soil.
FIG. 5 shows an exploded view of the excavated excavated body of the narrow groove. Reference numeral 12 denotes a chisel for piercing, which is located substantially horizontally. 14 back plate of securing a bottom surface plate 13 in the plane an arc shape behind the tip. The continuous to inner end is raised Specification Setsuban 42 front edge of the arc-shaped bottom surface plate 13 having a curved surface as viewed from the side oblique設刃41 is provided. The upper surface of the bottom surface plate 13 is formed by screwing the resin plate 39. The outer wall of the specification Setsuban 42 of the bottom surface plate 13 is a resin plate 40 is affixed. The resin plate and the resin face plate are intended to prevent soil from adhering and to have a slipping effect. The mounting plate 15 is fixed to the back plate 14 so as to sandwich it from the left and right. The mounting plate 15 is a fixing means for sandwiching the support bar 8 between the bolnuts. FIG. 6 shows a perspective view of a narrow groove excavation excavated body. A pair of left and right support bars 8 sandwich the digging blade body 9. The narrow groove excavation body 7 is formed symmetrically with respect to the support bar 8 at the center of the excavation blade body 9, and is detachably fixed by the mounting plate of 15. When the narrow groove excavated soil excavated body 7 invades the soil, the excavated blade body 9 bites under the long one, the left and right chisels 12 invade, and the slanted blade 41 cuts and separates the central part from the cultivated soil. to form a block 30. The oblique blade 41 cuts through the soil, and the excavated soil on the excavated surface of A and the active surface of B is prevented from invading inward by the partition plate 42 and guided upward to the outside. Discharge. Since the excavated soil is discharged to the outside of the narrow groove on the discharge surface C, an opening groove is formed.
FIG. 7 shows a plan sectional view of the narrow groove forming portion. The 0-0 line in the center indicates the center line of the digging blade 9. The left and right narrow groove excavators 7 are composed of a bottom plate of 13 and a partition plate 42 , and an oblique blade 41 is provided at the tip of the partition plate 42. Specifications Setsuban 42 is erected on an end portion of the drilling center of the bottom plate 13. Reference numeral 40 is a resin plate, and 39 is a resin face plate. The tip of the oblique blade 41 is bent inward (toward the center of the digging blade body) and has an escape angle G. The clearance angle G field soil resistance and clay, and has a clearance width G to the back of the specification Setsuban 42 but also to maintain the machinability in the case of heavy clay. The relief width G prevents the side portion of the cultivated soil block from adhering to the side surface of the partition plate 42 or the support bar 8.
9 shows a drive diagram of a fall auxiliary plate, 11 is a rear surface of the fall auxiliary plate. Reference numeral 22 denotes a second hydraulic motor, which is connected by 17 hoses conducted from the hydraulic pump 18 described above. The hydraulic motor described above is fixed to the stay of 27, and the rotation of the eccentric shaft 26 causes the drop assist plate 11 to vibrate up and down via the connecting rod 28.
FIG. 8 shows an explanatory diagram of driving the cleaner 19. The drive sprocket 29 attached to the output shaft of the first hydraulic motor 18 rotates the driven sprocket 34 which has been appropriately decelerated. The scraping rod 38 of the cleaner 19 is rotatably supported by the boss shaft 36 of the fulcrum shaft 37. The 38 scraping rod is swung left and right by the connecting rod 35 connected to the driven sprocket 34.

The long object digging device connected to the tractor according to the present invention does not increase the traction force of the tractor, has less damage to the excavated part even in a field mixed with stones and rocks, and is stable and continuous even in a highly clay-based field. You can harvest for a long time. In addition, the entire body is simple and lightweight, and it is economical because it requires less consumables even in the fields of large-scale professional farmers.

1 Rear part of tractor 2 3-point link 3 Machine frame body 4 Top bracket 5 PTO output shaft 6 Support shaft 7 Fine groove excavation excavation body 8 Support bar 9 Excavation blade body 10 Blade part 11 Drop auxiliary plate 12 Chisel 13 Bottom plate 14 Back plate 15 Mounting plate 16 Hydraulic pump 17 Hose 18 1st motor 19 Cleaner 20 Horizontal shaft 21 Pipe shaft 22 2nd motor 23 Long thigh digging device 24 Hydraulic cylinder 25 Lower link 26 Eccentric shaft 27 Stay 28 Connecting material 29 Drive sprocket 30 Cultivation Soil block 31 Long thigh 32 Fine groove opening 33 Rotating support shaft 34 Driven sprocket 35 Connecting rod 36 Boss shaft 37 Supporting shaft 38 Scraping rod 39 Resin face plate 40 Resin plate 41 Oblique blade 42 Partition plate H Fine groove excavation width G Escape angle

Claims (2)

The digging blade is connected to the rear part of the tractor, and the blade is plowed into the lower end of the grown long one. in the apparatus, digging up the front edge of the support bars on both sides for supporting the blade body is provided with narrow grooves excavated soil discharge body, the bottom plate the narrow groove excavated soil discharge body having an arcuate curved surface continuous from the cutting edge the disposed, the leading edge with erecting Setsuban specification is at an inner end toward the drilling center of the bottom plate becomes attached oblique設刃, the excavated soil in HosoHiroshi excavated soil discharge body width A long plow harvester that connects to a tractor, which is characterized by being discharged to the surface . The specification is the swash設刃provided on the front edge of Setsuban mounted somewhat inclined rearward, the claim edge of the swash設刃was characterized by having a square relief towards the drilling center 1 longer harvesting device coupled to a tractor according to.

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