JP2856665B2 - Grass seedling excavator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a machine for excavating rush seedlings from their seedbeds.

[0002]

2. Description of the Related Art The inventor of the present invention has previously proposed Japanese Unexamined Patent Publication (Kokai) No. 5-292804 as to a method for excavating rushes and a digging machine therefor.

In this method, the pushing blade (49) of the digging cutter (C) is moved forward and backward in the longitudinal direction of the body (A) to thereby obtain the root (b) of the rush seedling (M).
Is cut out to a certain length (H) and excavated from the nursery.

[0004]

However, when the above-described forward and backward movement mechanism of the excavating cutter (C) is adopted, the increased roots (b) of the rush seedlings are required to maintain a certain degree. Even if it is difficult to cut to the length (H), even the mud adhering and agglomerating to its root (b),
It is difficult to surely disintegrate and disassemble by (9), and the mud may be excavated as being embraced.

[0005] For this reason, after the excavation, it is necessary to add a manual work for mud dropping and stock loosening, and there is still a problem that considerable time and labor are required.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and as a result, as a digging machine for rushes, firstly, it protrudes forward from a fuselage as a downwardly inclined installation state. The excavation work frame is pivotally supported on the body so as to be able to move up and down, and the seedlings are moved as the body moves forward.
A pair of left and right parts that divide between the plants of rush seedlings vegetated on the floor
Grass sled is continuously moved forward from the lower front end of the work frame.
Along the vertical direction of the work frame
Excavation of a certain length that extends as a downwardly inclined installation
The blade at the front lower end of the blade from the contact surface of the weeding sled.
It curves into a circular arc in side view that enters the ground by a certain depth
As a form, and to the center of the lower end of the work frame
With a front-upward support shaft that is almost perpendicular to the work frame
And pivotally mounted, distribute the digging-up blade from the mounting engine airframe
The left and right directions around the vertical axis of the support shaft
Shaken, and Katsuhito the roots of Lee grass seedlings photo Rutotomoni,
Characterized in that set so as to be shaken off collapse mud adhering to the roots,

Secondly, a digging work frame which similarly projects forward from the fuselage in a downwardly inclined installation state,
Is pivotally vertically movable working to the body, along the inclined front surface of the working frame, a pair of left and right endless gastric grass seedlings nipping the conveyance belt causes stretched substantially parallel, forward of the aircraft
As we travel, we divide the seedlings among the vegetation on the nursery
Insert a pair of left and right weeding sledges into the front lower end of the work frame.
From the work frame above and below
Extending as a downwardly inclined installation along the direction
Insert the excavating blade with the length of
A circular arc in side view that enters the ground only a certain depth from the ground contact surface
In the form of curving in the lower end of the working frame
The frontal upright posture that is almost perpendicular to the work frame
Attached by a support shaft and distributed from the engine mounted on the above aircraft
The excavating blade is rotated around the longitudinal axis of the
While swinging it in the left and right directions,
The roots of the seedlings are cut and digged by the digging blade by running the roots upward after being able to transport the rush .
The excavated stalks of the grass seedlings are lifted and conveyed rearward and upward by the holding and conveying belt, and are loaded and transferred to the upper surface of the machine body.

[0008]

According to the first aspect of the present invention, the slope of the front falls.
A digging blade pivotally attached to the center of the lower end of the work frame in the installed state transfers the power distributed from the engine mounted on the aircraft.
Receiving, the front upward posture almost perpendicular to the work frame
It swings in the left and right direction around the support shaft, cuts the roots of rush seedlings, digs them from the nursery, and also shakes off the mud attached to the roots and causes them to collapse,
The mud is not excavated in a state of being embraced in a large amount, and as a result, there is no need to manually remove the mud, entanglement, or other troublesome auxiliary work after excavation.

[0009] In addition, the drilling up blade slope set of falling before
And the cutting edge at the front lower end has an arc shape in side view
As it is kept so that it penetrates into the ground by a certain depth from the contact surface of the weeding sled, it can be dug as a uniform root length at all times, and the root is cut after excavation There is no need to perform manual work to trim them.

Further, according to the above configuration of the second invention, the work flow
Almost parallel to the slanted front of the frame,
The left and right sides of the default are stretched, and this is also the
In response to the power distributed from the engine, it continues while nipping by the nip-conveyed belt Lee grass seedlings after removing the drilling,
It works so that it is lifted and conveyed backward and upward,
Since the seedlings are loaded on the upper surface of the machine and transferred, the complex processing can be performed efficiently, and the labor saving effect is excellent.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a riding excavator according to the present invention; FIG.
(A) is a general term for the fuselage, and an engine (10) is mounted at a position deviated to one of the right and left (left side in the example in the figure) of a front portion thereof, and a central portion of the rear portion is also provided. A transmission (11) is fixedly installed in the device.

[0012] Reference numeral (12) denotes an intermediate rotating shaft which is traversed along the left-right direction of the body (A) so as to be parallel to the output shaft of the engine (10). Through one transmission belt (13), and through the transmission (11) and the second transmission belt (14),
Each is power-coupled. Reference numeral (15) denotes a pair of left and right traveling crawlers. It goes without saying that the traveling crawler is driven to rotate by power taken out from the transmission (11).

A control box (16) stands upright from a rear center portion of the body (A), and a driver's cab (17) is integrally protruded rearward from the portion. The upper surface of the airframe (A), which also occupies the front from the control box (16), is set as a rush seedling loading deck (18), and the deck (18) allows not only the transmission (11) but also the above-mentioned transmission (11). Engine (1
0) is also covered from above.

FIG. 4B shows a digging work frame which projects toward the other side (right side) opposite to the place where the engine 10 is installed, and projects forward from the body A of FIG. As is evident from FIG. 5, the frame is integrally framed from a steel material into a substantially rectangular shape as viewed from the front.

In addition, when viewed from the lateral direction of the body (A), the work frame (B) is in a downwardly inclined installation state, and a pair of right and left elevating members extending continuously from the mid-height position to the rear. Arms (19) are also provided, the rear ends of both lifting arms (19) being pivotally connected to the fuselage (A) by horizontal fulcrum shafts (20).

(21) A hydraulic cylinder for raising and lowering the work frame (B) about its fulcrum shaft (20), which is located at a mid-height position of the work frame (B) and the machine body (A). Are pivotally connected to each other. Of course, the hydraulic cylinder (21) is controlled from the cab (17).

(22) is a front part of the working frame (B).
A pair of left and right weeding sledges that extend horizontally horizontally from the lower end , slide on the surface of the seedbed (G), and the digging depth of the rush seedling (M) by the digging blade (described below). The root cut length is regulated to a certain level.

Numeral (23) is a grass seedling receiver integrally provided from the halfway position of the grass sled (22),
It has an inverted U-shape as viewed from the front, and once receives a rush seedling (M) to be dug, and stalks its stem (a) in an orderly manner.

Further, (24) is the work frame (B).
Is a bearing case fixedly mounted horizontally at a position slightly above the elevating arm (19), and rotatably bears a power distribution shaft (25) penetrated therethrough.

One end of the power distribution shaft (25) is connected to the intermediate rotating shaft (12) on the side of the body (A) via a third transmission belt (26), and the other end remains. A crank (27) is fitted to the end so that it can rotate integrally.

(28) is a bearing case which is set upright from the center of the lower end of the work frame (B) in a front-upward position substantially orthogonal to the work frame (B) in a downwardly inclined installation state. The support shaft (29) of the digging blade (C) is rotatably penetrated therethrough.

[0022] The drilling up edge (C), as is evident from FIGS. 3-6, Ru consists wear resistant steel working frame predetermined length that extends along the vertical direction of (B) (L). In other words, above
With the work frame (B) in the inclined installation state,
, The constant length (L) of the digging blade (C)
Located rising inclined installation state, almost Nodea central portion by a support shaft (29) of the front upward position, which is pivotally secured to the lower central portion of the working frame (B) of the predetermined length (L)
Therefore, the excavating blade (C) swings so as to draw an arc locus around the longitudinal axis of the support shaft (29).

Further, the front lower end of the excavating blade (C) has a weeding sled (22) in relation to the weeding sled (22).
From the ground contact surface, preferably sinks by a constant depth (H) of about 5 cm, and is curved in an arc shape in a side view overlapping with the ground contact surface, and the curved front lower end serves as a cutting edge (30). Abrasion resistance is given by treatment such as quenching. It is effective that the constant depth (H) can be adjusted so as to be adjusted by, for example, sliding the excavating blade (C) in the vertical direction with respect to the work frame (B).

Reference numeral (31) denotes a rotating arm integrally extending from a substantially central portion of the excavating blade (C) in a lateral direction corresponding to the crank (27). The eccentric position of (27) and the eccentric position are pivotally connected via an advance / retreat rod (32).

That is, when the crank (27) is cranked around the horizontal axis of the power distribution shaft (25) by the power distribution shaft (25) which receives power from the engine (10), the crank (27) ) And rod (32)
The excavating blade (C) pivotally connected by the swinging motion swings right and left around the longitudinal axis of the supporting shaft (29), and the cutting edge (30) of the digging blade (G) vegetates the seedbed (G). M)
The root (b) is cut and digged from the nursery (G).

The swinging action width (W) may be appropriately set as long as the root (b) can be completely cut. In any case, the cutting edge (30) of the digging blade (C) is in the left-right direction. Along the trajectory so as to draw an arc trajectory, it is possible to reliably disintegrate the root (b) without the risk of embracing the clumped mud in the root (b), and the strong entanglement of the root (b) It can be easily solved.

At this time, the cut length of the root (b) is regulated to be constant by the depth (H) of the cutting edge (30) that enters the ground from the contact surface of the weeding sled (22). Therefore, after excavating the rush seedlings (M), the manual work of aligning the roots (b) is not required.

Also, since the substantially central portion of the excavating blade (C) is pivotally attached to the work frame (B) in a downwardly inclined installation state by the support shaft (29), The rear upper end of the digging blade (C) also swings in the left-right direction, and as a result, the digging seedlings (M) are lifted and conveyed upward and rearward by a sandwiching conveyance belt described later. the mud in the root (b) of Lee grass seedlings (M) is still attached, disrupted Shi overlooked swing by a rear upper end of the drilling-up edge (C)
It is possible that. The rear upper end of the digging blade (C) is used as a pendulum (33 ) to the root (b) of the rush (M).
That is, so to speak not have adapted to apply a hammer action.

Further, (34a) and (34b) denote a pair of left and right endless rush seedling holding and conveying belts which are stretched substantially in parallel with each other and face the inclined front surface of the work frame (B). , So this is also a downwardly inclined installation
It is in. The stalks (a) of the rush seedlings (M) dug out by the digging blades (C) are transported by the sandwiching and conveying belt (34a).
While being held elastically by (34b) , it is lifted and conveyed upward and rearward, and is loaded and transferred to the deck (18) on the machine body (A) side.

Reference numerals (35a) and (35b) denote drive pulleys of the nipping / conveying belts (34a) (34b). The drive pulley shafts (36a) and (36b) are arranged in parallel to the rear upper end of the work frame (B). is set up. (3
7a) and (37b) are the nipping and conveying belts (34a).
(34b) and a driven pulley of the working frame (B) via the driven pulley support shafts (38a) and (38b).
At the lower end of the front , they are also mounted side by side. (3
9a) and (39b) are the holding and conveying belts (34a) and (34).
There are a plurality of intermediate idle pulleys that give the pinching force of the rush (M) to b), and are supported by the working frame (B).

(40) The drive pulley support shaft (36)
a) A transmission shaft that is transversely mounted so as to be orthogonal to the left and right pair of (36b). As is apparent from FIG. 7, both drive pulley support shafts (36a) (36b) and the bevel gear mechanism (41).
a) (41b). (42
a) (42b) is the bevel gear box.

Further, (43) is a state in which one end of the transmission shaft (40) is received, and the working frame (B)
A reduction gear box fixed laterally to the upper end of the rear part , which has a reduction gear mechanism (44) built therein. (45) is an input gear shaft forming the reduction gear mechanism (44), (46) is also an intermediate idle gear shaft,
All of them are parallel to the transmission shaft (40).

Then, one end of which the input gear shaft (45) is exposed from the reduction gear box (43) and the power distribution shaft (25) are power-coupled via a fourth power transmission belt (47). The nip and transfer belts (34a) (3) are driven by the power distributed from the engine (10).
4b) to lift and transport the rush seedling (M)
It is designed to be cycled.

Via the reduction gear mechanism (44), the nipping and conveying belts (34a) (34b) are connected to the body (A).
The reason why the rushed seedlings (M) are run at a speed lower than the traveling speed of the sapling is that the excavated rush seedlings (M) are held by the nipping and conveying belts (34a) (34b)
Deflection allowed in inclined posture before orthogonal if said, in the process of conveying reliably slowly rearward and upward, and the mud is still attached to the root (b) of Lee grass seedlings (M) and drop, roots ( This is to help unravel the entanglement of b).

Also, due to the slow transport, the adjacent pitches of the rush seedlings (M) by the nipping and conveying belts (34a) (34b) are fixed to the rushes that are planted from the nursery (G). Of course, it is narrower than the seedling (M).

In the above configuration, when the burrowing of the rush (M) is performed, the sapling (M) is set in a downwardly inclined state.
There working frame (B) is grounded minute grass sled protruding forward (22) from the front lower end of, correspondingly grass sled (22) to the strains of the seedbed Lee grass seedlings to planting from (G) (M) It suffices to move the digger forward so that it can be divided.

Then, the crank (27) rotates around the horizontal axis of the power distribution shaft (25) by the power distributed from the on-board engine (10) of the body (A), and the forward / backward rod (32) is moved. to linear movement along the longitudinal direction, which the pivotally linked excavated up edge (C) includes a central support shaft (29) of the upward position prior to position its substantially central portion
And swing back and forth in the left-right direction, and its cutting edge (30)
And the roots of Lee grass seedlings (M) (b) is Katsuhito by, nursery
(G) .

In the process, as suggested by FIGS. 8 and 9, the stalks (a) of the sprouts (M) to be dug by the sapling stand (23) standing up from the weeding sled (22). )
Is properly and vertically erect, and in a stable state, the root (b) of the rush seedling (M) is in contact with the cutting edge (3).
The cutting is surely performed by the reciprocating motion of drawing the arc locus of 0).

Also, while the weeding sled (22) slides along the ground surface of the nursery (G), its contact surface and a certain depth (H)
The lower end of the front of the digging blade (C) that keeps
In order to penetrate the seedbed (G) into the ground, the excavation depth (root cut length) (H) can be made uniform,
Unnecessary hair roots are left in the ground, and the necessary parts for planting seedlings can be dug up from the ground.

Further, the excavating blade (C) is inclined forward and downward.
Before extending obliquely and bending into an arc shape when viewed from the side
A spindle whose lower end is in a front upward direction as a blade edge (30)
The root (b) of the dug grass seedling (M), which reciprocates in the horizontal direction while drawing an arc locus around (29 )
The mud adhering to the lower gap behind the digging blade (C)
To effectively shaken off can be disrupted, with possible to prevent the result is more embracing in Itadzura to its mud, entanglement also becomes possible to solve efficiently the root (b).

The stalks (a) of the rush seedlings (M) dug out by the digging blades (C) are successively received and pinched by the pinching / conveying belts (34a) (34b), and are slowly moved upward and rearward. The remaining mud falls from the root (b) even during the transport for as long as possible.

Particularly, the nipping and conveying belt (34a) (3
The conveying action starting point of the rearward and upward by 4b), before Lee grass seedlings (M) is substantially perpendicular to the belt (34a) (34b)
Addition to being diverted inclined posture, as its root (b) is in contact with the rear upper end of the drilling-up edge (C), the pendulum (33)
Of the need to position the working plane moving shake the left and right direction, even if still attached mud within the root (b), which the photo
By the pendulum (33) of the cutting blade (C), the pendulum can be reliably shaken down and dismantled.

In accordance with the above, the excavated rush seedlings (M) are loaded and transferred onto the deck (18) of the airframe (A) from the end of the transport operation of the nipping transport belts (34a) (34b). In the final stage, the rush seedling (M) is a lightweight finished product without adhering mud and without entanglement of the root (b).

In the illustrated embodiment, a riding type excavator for excavating grass seedlings (M) one by one has been described, but a machine for excavating several lines at once, or a hand-walking type excavator. The present invention can also be applied mutatis mutandis as a picking machine or the like.

[0045]

As described above, in the digging machine for rushes and seedlings according to the present invention, the digging work frame (B) projecting forward from the airframe (A) in a downwardly inclined installation state due to its configuration. , To the airframe (A) to be able to freely move up and down,
Vegetation on the nursery (G) as the aircraft (A) moves forward
A pair of left and right weeds that divide between the plants of the seedling (M)
Remove the sled (22) from the lower front end of the work frame (B)
Continuously projecting forward, the above work frame
(B) As a downwardly inclined installation state along the vertical direction
Extending the excavating blade (C) of a fixed length (L) to its front part
The cutting edge (30) at the lower end is from the contact surface of the weeding sled (22).
Curved into a circular arc in side view that enters the ground by a certain depth (H)
In a bent form, and at the lower end of the working frame (B)
Upward front almost perpendicular to the work frame (B) at the center
And pivotally by a support shaft (29) of the feeder orientation distribution of the mounted engine (10) of the drilling-up edge (C) of the machine body (A)
By the power, dependent on the longitudinal axis around the support shaft (29)
Swing in the direction to cut the root (b) of the rush (M)
To photo Rutotomoni, its root (b) in order are set so as to be shaken off collapse mud deposition, the effect of reliably improves upon the prior art problems mentioned at the outset.

That is, according to the above configuration of the present invention,
The blade (C) is inclined forward and downward along the work frame (B).
Has a constant length (L) extending as a stationary state,
The cutting edge (30) at the lower end is constant from the contact surface of the weeding sled (22)
It curves into a circular arc in side view that enters the ground by the depth (H)
And in the above-mentioned downwardly inclined installation state
To the center of the lower end of the work frame (B),
A support shaft (29) having a front-upward posture substantially orthogonal to (B).
It is pivotally attached.

The excavating blade (C) is the body (A)
Receiving the power distributed from the onboard engine (10),
Left around the vertical axis of the support shaft (29) in the front upward position
Because it swings to the right and acts,
Always cut the root (b) of the seedling (M) into a uniform length
It can be dug easily from the floor (G)
Even the mud adhering to (b) below the excavating blade (C)
The mud can be reliably shaken down into the void and collapsed.
Catch a lot of soil with the excavation blade (C)
There is no danger. As a result, the person after excavating the grass seedlings
Dismantling mud and entanglement by hand and other cumbersome assistance
No additional work is required.

According to the second aspect of the present invention, the above effect can be obtained.
In addition to what can be achieved, its front-down tilt installation
Almost parallel to the inclined front of the work frame (B)
Stretched by the engine (10) mounted on the fuselage (A)
Reciprocatingly driven rush seedling holding and conveying belt (34a) (3
4b) A pair of left and right sides of the rushed grass seedling (M)
The stalk (a) is continuously lifted and transported rearward and upward, and the
Because it can be loaded and transferred to the upper surface of (A),
The work efficiency including transport of the excavated rush seedlings (M) is improved.
It is even more improved and has an excellent labor saving effect.

If the structure of claim 3 is adopted, a nursery
The stem (a) of the rush seedling (M) vegetated on (G)
Grass seedling stand (2) standing upright from the weeding sled (22)
By 3), it will be received once and be neatly arranged,
Excavation of root (b) of rush seedling (M) in stable condition
Can be reliably cut and dug by the cutting blade (C)
You.

Further, if the configuration of claim 4 is adopted,
Rearward and upward by the above-mentioned nipping and conveying belts (34a) and (34b)
At the starting position where the hedge seedling (M) is transported,
Dig mud still attached to the root (b) of the grass seedling (M)
It is shaken down and broken by the pendulum (33) of the cutting blade (C).
The mud is attached and the root (b) is entangled.
On the fuselage (A) as the unraveled grass seedling (M)
Has the effect of being able to be loaded and transferred to
I can.

[Brief description of the drawings]

FIG. 1 is an overall schematic side view showing a digging machine of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a partially enlarged front view of FIG. 1;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a partially enlarged sectional view taken along line 6-6 of FIG.

FIG. 7 is an enlarged cross-sectional view showing a reduction gear mechanism of the grass seedling holding and conveying belt.

FIG. 8 is a side view showing the operation of the present invention.

FIG. 9 is a partially enlarged side view of FIG. 8;

[Explanation of symbols]

 (10)-Engine (22)-Weeding sled (29)-Support shaft (30)-Blade edge (33)-Pendulum (34a)-Nipping and conveying belt (34b)-Nipping and conveying belt (A)-Airframe (B)・ Work frame (C) ・ Drilling blade (G) ・ Nurse bed (H) ・ Constant depth (M) ・ Grass seedling (a) ・ Stalk (b) ・ Root

Claims (4)

(57) [Claims] An excavating work frame (B) projecting forward from a fuselage (A) in a downwardly inclined installation state is pivotally supported on the fuselage (A) so as to be able to move up and down freely . Vegetation on the nursery (G) as you travel forward
A pair of left and right weeds that divide between the plants of the seedling (M)
Remove the sled (22) from the lower front end of the work frame (B)
While continuously projecting forward, the work frame (B) is inclined forward and downward along the vertical direction.
Excavating blade of constant length (L) extending as installed obliquely
(C), the cutting edge (30) at the lower end of the front is the weeding sled.
Enter the ground only a certain depth (H) from the contact surface of (22)
In the form of a curved arc in a side view, and
Work frame (B) to the center of the lower end of frame (B)
Pivoted by a support shaft (29) with a front-upward posture that is almost perpendicular to
To, the excavation taking mounted engine blade (C) an airframe (A) (1
0), the vertical axis of the support shaft (29)
Shaken around an axis in the lateral direction, attaching a root (b) of Lee grass seedlings (M) Katsuhito to photo Rutotomoni, its root (b)
Drilling winder Lee grass seedlings, characterized in that the provisions of such that mud also shaking off collapse. 2. A machine body (A) from projecting forwardly as inclined installation state of forward descending drilling up work frame (B), lifting actuation freely is pivoted to its body (A), the working frame (B) A pair of left and right endless rush seedling holding conveyance belts (34a) (34b)
It is stretched almost in parallel, and vegetation is grown on the nursery (G) as the aircraft (A) moves forward.
A pair of left and right weeds that divide between the plants of the seedling (M)
Remove the sled (22) from the lower front end of the work frame (B)
Continuously projecting forward, tilting forward and downward along the vertical direction of the work frame (B)
Excavating blade of constant length (L) extending as installed obliquely
(C), the cutting edge (30) at the lower end of the front is the weeding sled.
Enter the ground only a certain depth (H) from the contact surface of (22)
In the form of a curved arc in a side view, and
Work frame (B) to the center of the lower end of frame (B)
Pivoted by a support shaft (29) with a front-upward posture that is almost perpendicular to
And distributed from the onboard engine (10) of the aircraft (A)
By the power, the excavating blade (C) is
Swing left and right around the vertical axis,
The transfer belts (34a) and (34b) are transferred to the grass seedlings (M).
After being transported, the seedlings (C) are rotated upward and the root (b) of the seedbed (G) is cut with the excavating blade (C).
And the stalks (a) of the rushed grass seedlings (M) are lifted and conveyed rearward and upward by the holding and conveying belts (34a) and (34b), and are loaded on the upper surface of the body (A). A digging machine for rushes and seedlings, characterized in that they are to be transferred. 3. The stalk (a) of a rush seedling (M) to be excavated.
Grass seedling receiving (2
3), the weeding sled (22) is integrated from the halfway position
Drilling-up machine Yi grass seedlings according to claim 1 or 2, characterized in that standing on. 4. A vertical movement of the working frame (B).
Approximately the center of the excavating blade (C) extending by the fixed length (L)
To the working frame (B) by the support shaft (29).
On the other hand, the rear upper end of the excavating blade (C) is also used as a pendulum (33) so as to face the starting position of the transfer operation of the rush seedling holding and conveying belts (34a) and (34b).
To the root (b) of the rush seedling (M) carried by (34b)
The mud still attached is shaken off by the pendulum (33).
3. The burrower for rushes according to claim 2, wherein the burrower is set to collapse .