JP2926095B2 - 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 root vegetable harvesting means for harvesting long root vegetables such as rice porridge. More specifically, a movable machine frame that vibrates up and down by a vibration mechanism is supported on a machine frame provided on the body of the towing vehicle or the work vehicle, and the movable machine frame is paired left and right in front view. Along the upper and lower shank opposite to the shank is integrally attached, the lower end side of each shank is connected to the front end of a plow having a sheer provided at the front edge and a long mold board before and after, and
The plows are connected to each other in an inverted C-shape when viewed from the front, and a pair of plows are applied to the left and right sides of the root crop cultivation line to be harvested. The shank and the plow penetrate the ground by vibrating the shank and the plow up and down by the operation of the vibration mechanism while moving along the cultivation line by the movement of the body of the towing vehicle or the work vehicle. While lowering the traction resistance of the root crop, the soil near the root of the root crop is raised by holding a pair of plows facing each other in an inverted U shape from the left and right, and the movement of the soil at that time raises the root crop The present invention relates to an improvement of a root vegetable harvesting means in a form that facilitates extraction of root vegetables.

[0002]

2. Description of the Related Art A shank is suspended on a body of a towing vehicle or a working vehicle, and is suspended in a pair on the left and right. At the lower end of the shank, a plow is attached to each, and the plows are arranged so as to face an inverted U-shape when viewed from the front, and root vegetables such as burdock are dug out by these pair of plows. Harvesters are conventionally known. A pair of plows of the root crop are connected to the lower ends of the shank fixedly attached to the pair of bodies, and the front ends of the plows are connected to each other via a left-right connecting shaft. By doing so, it is pivotally supported up and down, and the rear end side of these plows is connected to the lower end of an elevating vibration rod provided on the body so as to vibrate up and down, and proceeds with a shank fixed to the body. Means for reciprocating the plow up and down to swing up the root vegetables to be dug is also known from Japanese Utility Model Publication No. 7-29803.

[0003] However, means for pivotally supporting the front end of the plow at the lower end of the shank fixedly mounted on the body and swinging the rear end of the plow up and down by a vertically vibrating rod is provided in the soil. Due to the large traction resistance of the traveling shank, there is a restriction that a large traction tractor must be used to provide a large traction force, so the shank mounted on the aircraft is vibrated up and down by the vibration mechanism, and the lower end of this shank Means for vibrating the plows provided in the vertical direction together with the shank have been used.

[0004] A root crop harvester A in which the plow is vibrated up and down together with the shank is described as being mounted on a rear side of the tractor T through a three-point link hitch. As shown in the figure, a three-point link hitch consisting of left and right lower links 10.10 (one of which is omitted in the drawing) and a top link 11 is provided on the rear side of the body of the tractor T so that Frame a so as to be fixed at the height of
On this machine frame a, a movable machine frame b that vibrates freely up and down is supported by rotating vertically about the connection shaft w, and between the movable machine frame b and the machine frame a, The vibration width is regulated to a substantially constant range, and a vibration absorbing operation is performed under a constant spring load. A pair of shanks 20, 20 formed in a long flat shape are attached to each other so as to hang down in parallel from side to side as viewed from the front, and a lower edge of each of the shank 20, 20 is provided with a blade at a front edge. The front end side of the plow P composed of the shea 30 and the mold board 31 extending long backward from the shea 30 is attached, and at this time, the mold boards 31 of the pair of plows P · P are viewed from the front. Opposite to each other in a reverse U-shape, and as shown in FIG. As the shank 20, 2
0 to extend rearward and upward.

A vertically movable frame b is provided with a vibration mechanism d for vertically vibrating the machine frame b.
The PTO shaft 1 provided on the body of the tractor T
2 is driven by conduction through a universal joint shaft 13.

[0006] Then, as shown in FIG.
A pair of plows P on both sides of the cultivation line of root vegetables R ... such as burdock
・ Pod is positioned so that P is located, and the plow P ・ P
As shown in the above, the root vegetables R ... are passed through the ground at the left and right sides of the cultivation line, and the root vegetables R ... are moved toward the surface of the ground while holding the soil S where they are vegetated, Root vegetables can be easily extracted afterwards.

[0007]

The root crop harvesting means performed by using a root crop harvester A in which the plow is vibrated up and down together with the shank is a means for harvesting root crops by operating the vibration mechanism d. Since the plows P and P vibrate integrally up and down, the root crops R and the soil are put on the ground surface through a pair of plows P and P in the ground near the right and left roots of the cultivation line of the root crops R. When floating, the traction resistance of the shank 20 ・ 20 and the plow P ・ P comes to be halved by the vibration, but the root vegetables R are held together with the soil S while being held in the surrounding soil. Is lifted by the compression of the root crops R from the soil, the bond with the soil is strong, and in the soil with high viscosity, the plows P, P performed when the plows P, P pass.
Because the soil is not sufficiently crushed and collapsed by the vibration of the soil, the soil S comes to fall together with the root vegetables R in a state where the soil S has been lifted by the passage of the plows P, P, and the root vegetables R and the soil. The root vegetables R are cut off by not being separated from S, and it is hard to pull out during harvesting,
There are problems such as the inability to reduce the harvesting labor and the quality of root crops is greatly reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve this problem which has occurred in the conventional means, and a pair of plows of a harvester are passed through the ground near the root crop to remove the root crop. While maintaining the advantage of halving the traction resistance when floating on the surface, the vertical vibration width of the front end of the plow that vibrates up and down with the shank by using the vertical vibration operation of the shank, By expanding it more than the vibration width and reducing the traction resistance, the latter half of the plow is swung up and down greatly to effectively vibrate the soil S held and lifted while holding the root crops R ... To promote the collapse of the soil, to prevent the root crops from sinking due to the collapsed soil when the plow passes and the soil held up falls, and to remove the root crops that have risen to the surface of the ground. Withdraw from the ground Work, comfortably, and aims to provide a new means to quickly perform so.

[0009]

According to the present invention, as a means for achieving the above object, a vibrating mechanism d vertically vibrates a frame a provided on the body of a towing vehicle or a working vehicle. A movable machine frame b is supported, and vertically movable long shanks 20 are integrally mounted on the movable machine frame b so as to oppose a pair of left and right sides in front view.
The front ends of the plows P each having a shear 30 and a long mold board 31 in the front and rear direction are connected to the lower ends of the respective 0.20 and 20 and assembled in a posture facing the inverted C-shape in front view. The shark 2 is moved by the vibration mechanism d.
While oscillating with 0.20, the root vegetables R are passed through the ground on both left and right sides of the root of the cultivation line, and the root vegetables R hold a pair of plows P and P together with the soil S on the peripheral surface thereof. In the root crop harvesting machine that raises and lifts the head of the root crop R from the surface of the ground, the part near the front end of the pair of plows P, P is located at the center of the connection axis y, y with respect to the shank 20, 20. The front end side and the rear end side of the PP are supported so as to rotate up and down, and a second connecting shaft is provided near the connecting shaft yy of the plows PP near the connecting shaft yy. z
The connecting shaft z is supported by the connecting rod 5 on the machine frame a side, and the front end side of the plow P, which vibrates up and down together with the shank 20 by the vibration mechanism d, is connected to the shank 20.
The rear end of the plow P is set to a distance from the connecting axis y to the connecting axis z and a distance from the connecting axis z to the rear end. The present invention provides a root crop harvester characterized by swinging up and down largely in the direction opposite to the vibration direction of the shank 20, 20 around the center of the second connecting axis zz according to the leverage. .

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention comprises a movable frame b, which is vibrated up and down by a vibration mechanism d, is supported on a frame a provided on the body of a towing vehicle or a working vehicle, and is vertically long. The front ends of the plows P, P, which are long and longitudinally formed on the lower ends of the pair of shanks 20, 20, respectively, are arranged so that the shanks 20, 20 are opposed to each other in a pair on the left and right sides, and are integrally assembled. And assembling them so as to face each other in a reverse U-shape in a front view to constitute a root crop harvester, which is the same as the conventional means. The connection is performed by a connection shaft y.

The plow P is provided with another connecting shaft z in the vicinity of the connecting shaft y and behind the connecting shaft y, to which the lower end of the connecting rod 5 is rotatably connected. The upper end of the connecting rod 5 is rotatably connected to the machine frame a so that the connecting shaft z is a fixed fulcrum shaft fixed vertically to the machine frame a. Keep it. And
Thereby, when the plow P moves up and down together with the shank 20 by the vibration mechanism d, the front end side and the rear end side of the plow P are centered on the connection axis z having a fixed fulcrum axis. As described above, the reciprocating reciprocating up and down respectively is performed, and at the front end side in front of the connecting axis y of the plow P, the lowering amount is further lowered than the lowering amount when the shank 20 is lowered, and the lowering amount is increased when the shank 20 is raised. The shank 20 is lifted more than the rising amount, so that the vertical vibration width is expanded to effectively reduce the traction resistance. On the rear half side of the connection axis y of the plow P, the second connection axis z is connected to the connection axis y.
In accordance with the leverage set by the distance to the rear end and the distance from the second connection axis z to the rear end.

As a result, when the soil S held by the pair of plows P.P passes over the plow P.P. 31) As the contact position sequentially moves rearward, the position gradually swings up and down more and more, so that the collapsing occurs sharply.

For this reason, the soil S held and lifted together with the root crops R by the pair of plows P.P. Collapse starts from the upper surface (upper side) of the soil, falls from the right or left outer portion of the mold board 31 of the plow P, P, and a cavity generated on the lower surface side by the passage of the plow P, P. M is buried and the raised root vegetables R are gradually supported by the collapsed soil, the plows P and P have passed, and the soil holding the root vegetables R is the mold boards 31 and 31. When descending away from the trailing edge, the collapsed soil fills the cavity M almost to the ground surface, and the root crops R can be stably held with the head largely raised from the ground surface. And does not sink into the ground Uninaru. Therefore, it can be performed by extracting the root vegetables R as if they were picked up,
Labor saving and harvest efficiency are greatly improved.

[0014]

Next, an embodiment will be described in detail with reference to the drawings. In the drawings, the same reference numerals are used for components having the same effects as those of the conventional means.

FIG. 5 is a side view of the root crop harvester A used in the embodiment of the present invention, FIG. 6 is a plan view of the same, FIG. 7 is a rear view of the same, and in FIG. Lower link 10.10 and top link 11 provided on rear surface
The three-point link hitch comprises a machine frame connected and mounted on the rear surface of the body of the tractor T, b is a movable machine frame supported on this machine frame a so as to swing up and down around a fulcrum axis w, and d is A vibrating mechanism which is mounted and supported on the machine frame a so as to reciprocate the movable machine frame b up and down and vibrate. , A pair of shank, P is each shank 20 ・ 20
A plow connected to the lower end of the
Numeral 0 is the sheer of the plow P, 31 is a mold board connected to the rear end side of the sheer 30, z is a second connecting shaft provided behind the connecting shaft y of the plow P, and 5 is its connecting shaft z
Is shown on the connecting rod for supporting the frame on the machine frame a.

The machine frame a is a member that is fixedly mounted on the tractor T or the body of the work vehicle while being fixed integrally with the body. In this example, the lower link 10 is provided on the rear surface of the body of the tractor T. 10 and the top link 11 are connected and mounted by a three-point link hitch, and the lower link 10
The lift arm 14 is moved up and down by the operation of a hydraulically actuated lift arm 14 linked to the above.

The machine frame a has a mast 40 connected to the three-point link hitch described above, and a front end connected to the mast 40 via a connection shaft 41, and an intermediate portion connected to the mast 40 via an oblique support beam 42. The connecting portions 44, 44 for connecting the left and right lower links 10, 10, which are provided on the left and right side portions on the lower end side of the mast 40, are connected to the main frame 43 to be connected. The left and right lower links 10, 10 can be adjusted to expand and contract by appropriate means such as a hydraulic type or a manual type.

A movable machine frame b which is supported on the machine frame a so as to be swingable up and down has a front end connected to the machine frame a via a fulcrum shaft w so as to be rotatable up and down. The rear end swings up and down around w.

At the rear end of the movable machine frame b, shank 20 · 2 formed vertically long at both left and right portions thereof.
The upper end of each 0 is attached so that the length in the vertical direction can be adjusted.

As shown in FIG. 7, the shanks 20, 20 are disposed so as to face each other on the left and right sides in a front view, and have an edge 21 formed on the front edge side.

The plow P which is connected to the lower ends of the pair of shanks 20 on the left and right, respectively, has a blade 300 at its front edge.
And a mold board 31 (lift board) connected to the trailing edge and extending rearward. The lift face 31a of the mold board 31 is
As shown in FIG. 7, they are connected and mounted so as to face each other in an inverted C-shape when viewed from the front.

The connection between the plow P and the lower end of the shank 20 is made by a connecting shaft y, which is freely rotatable by the connecting shaft y.

A second connecting shaft z is separately provided in the vicinity of the connecting shaft y of the plow body P nearer to the rear than the connecting shaft y, and this connecting shaft z is connected to the above-mentioned machine frame a. The connecting rod 5 is attached to the rear end of the main frame 43.

Thus, the movable machine frame b vibrates up and down by the operation of the vibration mechanism d provided in the machine frame a, and the vertical shaking of the shank 20 integrally supported on the movable machine frame b causes When the plow P provided at the lower end of the shank 20 reciprocates up and down, the second rod supported by the connecting rod 5 on the machine frame a.
The position of the connecting shaft z does not fluctuate, and when the plow P rotates vertically around the second connecting shaft z, the second distance with respect to the distance between the connecting shaft y and the second connecting shaft z increases. Axis z and plow P
Since the distance to the rear end of the plow body P is far greater, the mold board 31 on the rear end side of the plow P is gradually moved up and down.

That is, the operation of the vibration mechanism d causes the shank 20 to move.
Descends and pushes down the connection axis y, which is the connection part with the plow P, so that the plow P pivots counterclockwise in FIG. 5 around the second connection axis z. The end side is largely moved upward as shown by a chain line in FIG.

With this, a pair of plows P, P are vibrated by the vibration mechanism d and passed through the ground on both the left and right sides of the root of the cultivation row of root vegetables R. Of the mold board 31 that constitutes the plow P, as the plow P passes through the plow as the plow passes along with the soil by the plows P, As it shifts to the rear end side, it gradually rocks up and down gradually, so the held soil collapses from the upper surface through the left and right sides of the mold board 31 and falls into the cavity M, and is lifted together with the soil. Fill the area around the root vegetables R ...
When the soil holding the root vegetables R... Is separated from the mold board 31 due to the advance of the airframe, the root vegetables R... Are softly held from the surroundings by the soil that has collapsed into the cavity M, and sink in the soil. As shown in FIG. 8, the head becomes stable without being lifted off the ground.

The connecting rod 5 has a length extending between the rear end of the main frame 43 and the connecting shaft z.
The expansion and contraction can be adjusted by selecting a bolt hole through which the set bolt is inserted, and the adjustment can change and adjust the raising angle of the plow P toward the rear and upward of the mold board 31.

The vibrating mechanism d only needs to vibrate the movable machine frame b up and down about the fulcrum axis w. Like the vibrating mechanism of the conventional means, the vibrating mechanism d rotates the eccentric weights opposed to each other in a pair. In this example, the PTO shaft 12 of the tractor T and the universal joint shaft 13 may be mounted on the main frame 43.
The eccentric cam 61 is provided at the rear end of the drive shaft 60 which rotates in the front-rear direction, which is driven and rotated through the shaft. The eccentric cam 61 is provided. A moving rod 63 is provided, and the lower end side of the reciprocating moving rod 63 is connected to a connecting pin 64 supported on a movable machine frame b in parallel with the driving shaft 60 to rotate the driving shaft 60. The reciprocating rod 63 reciprocates up and down due to the rotation operation of the eccentric cam 61 caused by the eccentric cam 61 to vibrate the movable machine frame b up and down about the fulcrum shaft w.

[0029]

As described above, according to the present invention, a pair of plows P, P facing each other in an inverted C-shape when viewed from the front,
Attach to the lower end of the shank 20, 20 mounted on the vertically movable machine frame b supported on the machine frame a so as to vibrate up and down by the vibration mechanism d, and vibrate the plow body P, P together with the shank 20, 20 up and down. In this way, the root crops are lifted up with the soil by the pair of plows P and P that travel in the ground, while retaining the benefit of halving the traction resistance of the shank 20 and the plows P and P. At the time of making the lower end of the shank 20 support the portion near the front end of the plow P with the connecting axis y, and the rear part of the connecting axis y,
By connecting the lower end side of the connecting rod 5 connected to the machine frame a side via the second connecting shaft z, the vibrating operation of the shank 20 that vibrates the plow body P up and down is used, and the front end of the plow body P is used. The upper and lower vibration widths of the side are expanded more than the vibration amount of the shank 20,
The latter half of the plow body P is greatly rocked up and down with a leverage ratio according to the ratio of the distance from the connection axis y to the second connection axis z and the distance from the second connection axis z to the rear end of the plow body P. Since it is made to move, the tow resistance of the plow P traveling in the ground is significantly reduced, and the tow can be towed without using a tractor with a large horsepower. Then, the rear half of the pair of plows P and P moving in the ground moves up and down greatly with the leverage ratio described above, so that the soil held by the pair of plows P and P and lifted has a high viscosity. Even in the case of soil, the mold board 31 is gradually shaken with the progress of the plows P, P, and collapse is promoted, and the mold board 31 gradually collapses from the upper surface side of the held soil and falls.
31 fall from both the left and right sides so as to fill the cavity M formed in the ground by the passage of the plows P, P, so that the root vegetables R drawn out by the soil held and lifted, the lower half side Is gradually held from below by the fallen soil, and when the lifted soil leaves the rear end of the plow P, the root crops R are completely held by the fallen soil and sink. The head is lifted off the surface of the ground without any stabilization.

Therefore, the front end side of the plow P which vibrates up and down together with the shank 20 is enlarged more than the amount of vibration of the shank 20 and vibrates up and down, so that the traction resistance is significantly reduced. The latter half of PP is moved up and down greatly so that the extraction of root vegetables R ... after passing through the harvester A can be performed easily and quickly.

[Brief description of the drawings]

FIG. 1 is an overall side view of a conventional root crop harvester mounted on a tractor.

FIG. 2 is a front view of the harvester.

FIG. 3 is a plan view of the same harvester.

FIG. 4 is an explanatory view of the harvester in a working state;

FIG. 5 is a side view of a root vegetable harvester used in the practice of the present invention.

FIG. 6 is a plan view of the same harvester.

FIG. 7 is a front view of the harvester.

FIG. 8 is an explanatory diagram of the operation of the means of the present invention.

[Explanation of symbols]

A: harvester, T: tractor, P: plow, S: soil, R: root crops, M: hollow, a: machine frame, b: movable machine frame, c: regulating member, d: vibration mechanism, w ... fulcrum axis, y ... connection axis, z ... second connection axis, 10 ... lower link, 11 ... top link,
12: PTO shaft, 13: Universal joint shaft, 1
4 ... lift arm, 20 ... shank, 21 ... edge, 3
0: Shader, 31: Mold board, 31a: Raised surface, 300: Blade, 40: Mast, 41: Connecting shaft, 4
2 ... support beam, 43 ... main frame, 5 ... connecting rod,
60 ... connecting shaft, 61 ... eccentric cam, 62 ... ring, 63 ...
Reciprocating rod, 64 ... connecting pin.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A01B 13/08 A01D 13/00 A01D 17/00

Claims (1)

(57) [Claims] 1. A movable machine frame b vibrating up and down by a vibration mechanism d is supported on a machine frame a provided on the body of a towing vehicle or a working vehicle, and a pair of left and right movable machine frames b is provided on the left and right sides in front view. , The lower ends of the shank 20 are connected to the front end of a plow P having a shear 30 and a long mold board 31 in front and rear, respectively. Then, the right and left sides of the cultivation line of the root vegetables R are assembled while the plows P and P are vibrated together with the shank 20 and the shank 20 by the vibration mechanism d when the front and rear sides are assembled in an inverted C-shape. through underground on both sides, in root crops R a harvester root vegetables to float the head of a pair of plow bodies P · P a faced up by lifting root crops R from the surface with the soil S of the peripheral surface of it , Near the front end of a pair of plows PP Site was支架as front side and the rear side of the該犂body P-P connection shaft y-y centered relative to the shank 20, 20 is rotated up and down, the connecting shaft thereof plow bodies P, P y, y, a second connecting shaft z is provided at a position behind the connecting shafts y and y, and the connecting shaft z is connected to the connecting rod 5.
And the front end of the plow P, which vibrates up and down together with the shank 20 by the vibration mechanism d.
The side is larger than the vertical vibration width of the shank 20
Vibrates up and down, and the rear end side of the plow P
And the distance from the connection axis z to the rear end
A second connecting shaft z-z center according leverage set by large in a direction opposite to the vibration direction of the shank 20 & 20
Root vegetables characterized by swinging up and down
Harvester .