JP6736013B2 - Long haul harvester connected to a tractor - Google Patents

Description

The present invention, coupled to the rear part of the tractor, plows into the lower end of a long one that grows a dug blade, holds it in a block shape together with the cultivation soil around the long one, and floats it toward the rear, It concerns a long harvesting device that is connected to a tractor that is gently dug without scratching the long one.

Various long harvesting devices have been conventionally proposed. The grown long potato grows underground to a depth of about 1 meter, and the harvesting work is a heavy labor, and at the same time, it has a characteristic that it is easily broken even if it is long and the surface skin is easily scratched. And the same application as a device that tried to dig a long thigh while holding the digging blade into the lower end of the long one grown, holding it in a block shape with the cultivation soil around the long one and raising it toward the rear JP-A-2006-25601 and JP-A-2014-212786 are proposed.
The former "is connected to the rear part of the tractor, and is rotatably connected to a pair of plow members that dig up the cultivation soil on both sides of the long one as the tractor advances, and is rotatably connected to the lower central part of the pair of plow members. A long excavating device having a cutting blade body having a blade portion and a rear portion inclined upward, wherein the connection between the cutting blade body and the plow member is supported by a pair of connecting bars. The one end of the connecting bar is fixed to the lower end of the plow member, and the other end of the connecting bar is rotatably attached to a support shaft provided on the back surface of the excavating blade body. Disclosed is a configuration of a long digging device, wherein the connecting bar is arranged so as to be completely hidden on the back surface of the digging blade body. The effect is that the tractor with a relatively small power can be towed because the resistance from the excavated soil that is received when the tractor is long tow the excavator is reduced.
The latter aims to reduce the traction resistance of the tractor by arranging an excavation chain and forming a deep plowing groove in front of the plow member having the above-mentioned excavation structure. A long harvesting device coupled to a tractor characterized in that an excavation chain for excavating above both side portions of the excavation blade body is arranged in proximity in a long excavation method in which the soil is sequentially floated up with the cultivation soil and moved backward. The width of the blade part of the digging blade body is formed to be the inner width of both side digging chains, and the latter half of the digging blade body part is wide so as to overlap the groove width of the digging chain. It is.

JP 2006-25601 A JP, 2014-212786, A

According to the configuration of the latter embodiment of JP-A-2014-212786 described above, since the excavating chains for excavating both side portions above the blade portion of the excavating blade body are arranged, the left and right plow-in members are not provided. Propulsion resistance is reduced, but on the other hand, when rocks or stones are included in the field, the drilling blade may bite the stones and damage it, or the drilling chain may collide with the rocks and damage it. It took a long time, and the interruption of work, especially in a large-scale field, caused great economic loss. Further, the deep plowing groove of the excavation chain applied a frictional force to the side surface of the flat support bar having a vertically long cross section to increase the traction load of the tractor.

In order to solve the problem of damage to the excavation chain caused by rocks, etc., a long one that is connected to the rear part of the tractor and has a digging blade body is plowed into the lower end of the tractor, and the long one is held in a block with the surrounding soil. Then, in the harvesting device for digging long thighs while levitating to the rear, the fine groove excavation and discharge body is arranged at the front edges of the support bars on both sides that support the digging blade body through the attaching/detaching means. However, the tip of the narrow groove excavation soil discharge body is arranged substantially coincident with the blade edge of the excavation blade body in a side view, and the narrow groove excavation soil discharge body rises with a continuous arc-shaped curved surface from the blade edge thereof. The upper end extends above the front edge of the support bar and discharges the excavated soil to the surface of the earth, and the arc-shaped curved surface is parallel to the blade portion of the excavation blade body at the tip of the narrow groove excavated soil discharge body. It is provided so that the excavated soil is discharged outward at the upper end side of the fine groove excavated soil discharge body and is discharged to the outside of the fine groove excavated soil discharge body, and the attaching/detaching means is the support. A long harvesting device connected to a tractor characterized in that a backing plate fixed to the back surface of a metal face body forming the fine groove excavating and discharging body is sandwiched by a mounting plate provided on a bar .
Further, a hydraulic pump which is directly driven by the PTO shaft of the tractor is arranged, and this hydraulic pump transmits a hydraulic motor which drives the cleaner and a hydraulic motor which vibrates the fall auxiliary plate at the rear end of the digging blade. Is a long harvesting device that connects to the tractor described in.

The fine groove excavated soil discharge body having a continuous arcuate curved surface from the cutting edge as described above discharges the fine groove excavated soil on both sides of the excavation blade body to the ground surface to form an open groove, and at the same time the excavation blade body Long blades are pierced at the lower end to form a cultivation soil block having a U-shaped cross section, which is floated backward and harvested. Therefore, the excavated excavated body will not be damaged because it gently intersects with stones and rocks. Also, the friction reaction force on the side surface of the support bar is reduced by the opening groove of the narrow groove. In addition, the tip of the excavated earth excavation body is provided so as to approximately match the cutting edge of the excavation blade body, and it is configured so that it can be detachably held by holding it from both sides with respect to the support bar. Sometimes the height can be easily adjusted. In addition, it is economical because it can be attached to harvesting equipment that has been sold for a long time.
In addition, since a drop assist plate and a cleaner that vibrate by a hydraulic motor that is transmitted from a hydraulic pump directly connected to the digger and tractor PTO output shaft are provided, the long potato digging device side attached by a three-point link is lightweight and simple, and the crank mechanism Since it has been eliminated and the cultivation soil has been dropped smoothly, harvesting has become easier for a long time.

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 mold model of cultivated soil block Is a front view of the formation of cultivated soil blocks Is an illustration of the excavated earth excavated body Drive explanatory diagram of fall auxiliary plate Drive driving explanatory diagram

The embodiment of the present invention is plowed into the lower end of a long one that is connected to the rear part of the tractor and grows the excavated blade body, and holds the long one in a block shape together with the surrounding cultivation soil and floats it backward. However, in the harvesting device that digs long thighs,
Fine excavation soil discharge bodies are provided at the front edges of the support bars on both sides that support the excavation blade body, and this fine groove excavation soil discharge body has a continuous arc-shaped curved surface rising from the cutting edge and its upper end is the above-mentioned support. A long harvesting device connected to a tractor characterized by extending above the front edge of the bar and discharging excavated soil to the surface,
The tip end of the fine groove excavated soil discharge body is arranged substantially coincident with the cutting edge of the excavation blade body, and is connected to a tractor provided with a fixing means for holding and detaching the support bar from both sides. A long harvesting device.

In FIG. 1, reference numeral 1 denotes a rear portion of a riding four-wheel tractor. The front part of the machine frame 3 supporting the long excavation device 23 is connected to the rear part of the tractor by the three-point link 2. Reference numeral 4 denotes a top bracket, which is rotatably supported with a support shaft 6 horizontally extending in front of the machine frame 3 as a fulcrum. On the front side of the top bracket 4, a public top link is connected to the tractor. Reference numeral 8 denotes a support bar having a vertically long cross section, which is attached to the left and right of the machine frame 3 facing downward. A digging blade 9 that is inclined rearward is installed at the lower ends of the pair of support bars 8. The tip of the digging blade body 9 is provided with the blade portion 10, and the drop assisting plate 11 forming the rear end is slightly vibrated by the second hydraulic motor 29.
Reference numeral 19 indicates a cleaner, which removes the upper surface portion of the cultivation soil block raised to the rear by the excavating blade body 9 to the left and right to allow the long neck to protrude. The cleaner 19 oscillates right and left by going straight in the direction of travel by the first motor 18.
Reference numeral 24 denotes a hydraulic cylinder, which uses the support shaft 6 as a fulcrum to elevate and lower the posture of the digging blade body 9 supported by the machine frame body 3 with respect to the top bracket 4 by its expansion and contraction. In particular, it is to secure the ground clearance of the excavating blade body in the ground.
Reference numeral 7 denotes an excavated earth excavation body, which is arranged at the front edge of the support bar 8 described above. The chisel 12 which constitutes the tip of the fine groove excavation and discharge body 7 is arranged so as to substantially coincide with the cutting edge of the excavation blade body 9, and a curved surface in a continuous arc stands up and its upper end is in front of the support bar 8. It extends above the edge and discharges excavated soil to the surface. Reference numeral 31 denotes a long potato, which moves upward along with both sides of the digging blade body together with the cultivation soil block shape excavated and cut by the fine groove excavation and discharge body of 7.
FIG. 2 is a plan view in which a part of the present invention is omitted. Reference numeral 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 part of the tractor, which directly drives the hydraulic pump 18, and is provided with a hose 17 to be transmitted to the hydraulic motor. The hydraulic pump 18 drives the first motor 18 and the second motor 29. The first motor 18 is connected to means for swinging the cleaner 19 to the left and right. The second hydraulic motor 29 vibrates the fall assisting body 11 in the latter half of the digging blade body 9.
Reference numeral 9 indicates a digging blade. Reference numeral 7 denotes a fine-groove excavated soil discharge body arranged on both sides of the excavation blade portion 10. Reference numeral 12 denotes a chisel forming the tip of the fine groove excavated soil discharge body, which is configured to substantially match the blade portion 10 of the excavation blade body described above in a side view. The inclined rear half portion of the excavation blade body 9 is configured to have a wide width so as to overlap with the groove width excavated by the fine groove excavation soil discharge body 7. Reference numeral 20 is a horizontal axis, which is provided horizontally on the machine frame 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 cultivation soil block 30. The lower end of the support bar 8 having a vertically long cross section is fixed to both sides of the digging blade 9. The digging blade body 9 is provided with a blade portion 10 at its tip, its rear portion is inclined upward, and its rear end is connected to a drop assisting plate 11 which is slightly vibrated. The fine groove excavated soil discharge bodies 7 are fixed to the front edges of the left and right support bars 8. The chisel 12 at the tip of the fine groove excavating and discharging body 7 is arranged so as to be substantially coincident with the cutting edge of the excavating blade body 9 in a side view, and a curved surface in a circular arc continuous rearward from the horizontal chisel 12 is formed. It rises and is formed from the excavation surface A, the activity surface B, and the discharge surface C. The upper end of the discharge surface C extends above the front edge of the support bar 8 and discharges the excavated soil to the ground surface. In this embodiment, the discharge surface C is twisted outward and the excavated soil is discharged to the outside of the narrow groove, so that an opening groove is formed. Reference numeral 32 indicates a narrow groove opening after the passage of the fine groove excavated soil discharge body, and reference numeral 30 indicates a long cultivation soil block rising together with 31. Reference numeral 15 denotes a mounting plate 7 for the fine groove excavation body, 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 the same-type harvesting machine already on sale.
FIG. 4 shows a front view of formation of a cultivation soil block. The fine groove excavated soil discharge bodies 7 on both sides excavated in the ground form the fine groove openings 32 as well as the propulsion, and the blade portion 10 of the excavating blade body is plowed at the lower end of the growing material and has a long center 31. The cultivation soil block holding the is integrally formed in a U-shaped cross section. At this time, since the support bar 8 having the vertically long flat plate section propels the narrow groove opening (space), it does not receive the pressing frictional force of the excavated soil.
FIG. 5 is an explanatory view of the fine groove excavation waste body 7. Reference numeral 12 is a chisel for inserting, which is positioned substantially horizontally. The back plate 14 has a circular arc shape rearward from the front end, and fixes the flat metal surface body 13 thereto. 39 resin face plates are screwed to the upper surface of the metal face body 13 having a continuous arcuate curved surface in a side view. The mounting plate 15 is fixed to the back plate 14 so as to be sandwiched from the left and right. The mounting plate 15 is a fixing means for sandwiching the support bar 8 with the bolnut.
FIG. 6 is a drive explanatory diagram of the drop assist plate, and 11 is a rear surface of the drop assist 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 is fixed to the stay 27, and the fall assist plate 11 is vertically vibrated via the connecting rod 28 by the rotation of the eccentric shaft 26.
FIG. 7 shows a driving explanatory diagram of the cleaner 19. The drive sprocket 29 attached to the output shaft of the first hydraulic motor 18 described above rotates the driven sprocket 34, which is appropriately decelerated. The scraping bar 38 of the cleaner 19 is rotatably supported by the boss shaft 36 of the fulcrum shaft 37. 38 The scraping rod is swung right and left by the connecting rod 35 connected to the driven sprocket 34.

The long digging device connected to the tractor according to the present invention is less likely to damage the digging portion even in a field where stones and rocks are mixed, and enables continuous long-term harvesting work. In addition, the whole body is simple and lightweight, the horsepower required for digging may be relatively small, and consumable items may be small even in a field of a large-scale professional farmer, which is economical.

1 Rear part of tractor 2 3-point link 3 Machine frame 4 Top bracket 5 PTO output shaft 6 Support shaft 7 Fine groove excavation and discharge body 8 Support bar 9 Digging blade body 10 Blade portion 11 Drop assist plate 12 Chisel 13 Metal face plate 14 Back plate 15 Mounting plate 16 Hydraulic pump 17 Hose 18 First motor 19 Cleaner 20 Horizontal shaft 21 Pipe shaft 22 Second motor 23 Long 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 groove 32 Narrow groove opening 33 Rotating support shaft 34 Driven sprocket 35 Connecting rod 36 Boss shaft 37 Support shaft 38 Scraping rod 39 Resin face plate

Claims (2)

A long thing that is connected to the rear part of the tractor and grows a digging blade.Plow it into the lower end of the tractor, hold it in a block shape together with the surrounding cultivation soil, and lift it toward the rear while digging long things. In the device, a fine groove excavation soil discharge body is arranged at the front edges of the support bars on both sides supporting the excavation blade body through detaching means, and the tip end of the fine groove excavation soil discharge body is the excavation blade body. The narrow groove excavating and discharging body is arranged so as to be substantially coincident with the blade edge of the body in a side view, and a continuous arc-shaped curved surface rises from the blade edge, and its upper end extends above the front edge of the support bar to excavate soil. Is discharged to the surface of the earth ,
The arc-shaped curved surface is provided in parallel with the blade portion of the excavation blade body at the tip of the fine groove excavation waste body, and is twisted outward at the upper end side of the fine groove excavation waste body. The excavated soil is configured to be discharged to the outside of the narrow groove excavated soil discharging body,
The attaching/detaching means sandwiches a back plate fixed to a back surface of a metal face body forming the narrow groove excavating and discharging body by a mounting plate provided on the support bar.
A long harvesting device that connects to the characteristic tractor. A hydraulic pump that is directly driven by the PTO shaft of the tractor is arranged, and this hydraulic pump transmits a hydraulic motor that drives the cleaner and a hydraulic motor that vibrates the fall auxiliary plate at the rear end of the digging blade. A long haul harvesting device coupled to the tractor according to claim 1 .

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