JPH0411817A - Grass-dividing mechanism of rush harvester - Google Patents

Abstract

PURPOSE:To prevent the twine of rushes on a hollow straight tube and surely divide the rushes by blasting compressed air toward the rushes from many air-blowing nozzles disposed on the action surface of the hollow tube for dividing the rushes. CONSTITUTION:Many air-blasting nozzles 108 are formed in an interspersing distribution state on the action surface of a rush-dividing hollow straight tube 94 revolving while drawing a movement track crossing only at a constant angle gammato the rotation axis line Y-X of a crank shaft 90. During a rush-dividing work, air compressively fed into the hollow straight tube from a blower fan is blasted to rushes.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to an improvement in the weeding mechanism of a rush harvester.

<Prior Art> The present applicant has already proposed Japanese Patent Publication No. 62-44887 regarding the weeding mechanism of a rush harvester, and has achieved considerable results by commercializing the proposal.

Due to its structure, synthetic resin or other flexible hollow pipe material is used as the distribution rod (33), and based on its own flexibility, it is forced from a straight pipe state to a bent pipe state. The upper support member (43) and the lower support member (32) are curved and incorporated between the upper support member (43) and the lower support member (32).
3) Due to (32), the installation is kept in a stretched state. Under a constant amplitude (-) given by the curvature of the distribution rod (33), the distribution rod (33) can be caused to revolve while drawing an overall spindle-shaped motion trajectory.

Such a configuration is similar to that of JP-A-63-11661 and JP-A-64-3, which were filed by a third party after the publication of the application for the above-mentioned known invention.
No. 7224 and Japanese Utility Model Application No. 1-118624 are basically the same.

<Problems to be Solved by the Invention> However, according to the results of continued field research since then, in the case of the known invention proposed by the applicant, the rotary driving force from the engine (11) is distributed to the rod ( 33), it has the advantage of being able to provide its revolving force without direct loss, but on the other hand, it is only a fixed size (actually about 130 cm)
The distribution rod (33), which is made of hollow pipe material canted, is forcibly bent from its original straight pipe state to a bent pipe state with an amplitude of about 20 cm (11) based on its flexibility. As a result, the thickness of the sorting rod (33) is actually limited to about 3 cm at the most.

In other words, although it is effective to improve the weeding ability by curving into an arc shape with a large amplitude (-), the thicker the distribution rod (33) is, the more difficult it is to curve it to a large extent. It is.

Therefore, if we adopt a sorting rod (33) made of thin hollow pipe material that does not reach the above value, then the sorting rod (33)
) Not only will its own durability be reduced, but even if it is loosely attached to the upper support (43) in a non-rotating state, rushes will become more likely to get wrapped around it. This is particularly the case when rushes are soft and growing, or when immature rushes are harvested.

As shown in Fig. 25, the narrow distribution rod (33) has a small contact surface area (1) with the rush stem culm.
This is because the contact pressure is, on the contrary, large. As a result, in order to remove the rushes that are wrapped around the sorting rod (33), it is necessary to interrupt the mowing operation, or to reduce the working speed of the machine (10) to prevent the grass from becoming rolled up or damaged. ,
This also results in being forced to perform frequent gear shifting operations.

In addition, the sorting rod (33) is actually made of a hollow vibrating material made of ABS resin that also has appropriate rigidity, but if it is thin, it will be difficult to weed the rushes that are tightly intertwined with each other, and the two rows will be separated. When subjected to weeding action all at once, it cannot withstand the entanglement and separation resistance, and as shown in Figure 25, it draws an elliptical orbital motion that extends long and narrow along the vertical direction. Become. In other words, the amplitude (-) along the horizontal direction, which is originally important for the weeding action, is reduced, and the grass is improperly stretched and deformed as if escaping in the vertical direction, where there is less resistance, and the weeding effect is still inferior.

<Means for solving the problem> Therefore, in order to solve the above problem, the applicant filed a patent application entitled "Grass separating mechanism for rush harvesting machine" on March 28th and April 6th of last year. However, the present invention aims to further improve this.

In other words, while maintaining the advantages of the prior invention, in particular, in order to completely prevent rushes from becoming entangled in the sorting rod and resulting in damage, it is necessary to move forward from the fuselage along the ground. A weeding arrow is fixedly installed at the front end of the weeding machine to be dispatched, and a crankshaft is erected from behind the weeding arrow at a fixed angle upward and tilted, and the eccentric crank part of the crankshaft is As a hollow straight pipe for distributing rushes that is thicker than the crankshaft itself, when a rotational driving force is applied to the crankshaft from the rear and upper side, the hollow straight pipe intersects the rotational axis of the crankshaft itself ≠ -≠ by a certain angle drop. In a rush harvesting machine that is designed to perform only a revolution action while drawing an overall downwardly tapering conical or truncated conical motion locus, both upper and lower ends of the hollow straight pipe for distributing rushes are in a closed state. At the same time, on the working surface of the hollow straight pipe that comes into contact with the rushes,
A large number of air jet nozzles are formed in a scattered manner, and a blowing pipe line facing the inside of the hollow straight pipe from behind is connected to the blower fan mounted on the aircraft body. The main feature is that the air is forced into the hollow straight pipe from a blower fan and is blown toward the rushes from the air jet nozzle while the rushes are sorted by the revolving movement of the pipe. do.

<Operation> According to the above configuration, when the rotational driving force of the engine is applied to the crankshaft from the rear and upper side, the hollow straight pipe for distributing rushes, which forms the eccentric crank part of the crankshaft, is rotated by the rotation of the crankshaft itself. While drawing an overall cone-shaped or truncated-cone-shaped motion locus around the axis, only a revolution action is performed, and the rushes can be reliably sorted.

In that case, the hollow straight pipe mentioned above is thicker than the crankshaft itself,
Although the rotational driving force of the crankshaft is received directly without loss, it also revolves around its rotational axis, so its locus of motion does not undergo irregular deformation as shown in Fig. 25, and is always constant. It maintains the correct circular cross section as shown in Figure 16, and can sufficiently withstand the entanglement and separation resistance of rushes, improving durability.

Furthermore, during the rush sorting action of the hollow straight pipe as described above, air is pumped from the internal hebrow fan of the hollow straight pipe, and the air is sent from the air jet nozzle that opens on the working surface of the hollow straight pipe to the rushes. Since the air is sprayed towards the hollow straight pipe, not only the regular rushes but also the accompanying withered debris and other impurities are not rolled up, and as a result, the regular rushes are not blown away. It is also possible to completely prevent the risk of damaging the stem culm and reducing the weeding effect of the hollow straight pipe.

<Example> Hereinafter, the specific configuration of the present invention will be described in detail based on the illustrated example. Figures 1 to 3 show the entire rush self-mounted riding type harvester NIl suitable for mowing two rows. (10) is a general term for the aircraft, consisting of a fixed track frame (11),
A working frame (12) that can be raised and lowered forming its front part.
It consists of

In other words, the work frame (12) includes a rush weeding mechanism (A) and a raising mechanism (B), which will be described later, and a rush conveyance mechanism (
C) A flat surface that supports a series of working mechanisms consisting of a 1-plant head reaping mechanism (D), a waste pick-up and sorting mechanism (E), a 9-plant-side converging conveyance mechanism (F), and a stock binding mechanism (G). The rear base end of the frame is generally horizontally shaped as a whole, and its rear base end is connected to the horizontal horizontal axis (1
3), and a hydraulic cylinder (14) for raising and lowering the work frame is inserted between the front and rear of both frames (11) and (12).

Therefore, by extending the piston rod (15) of the hydraulic cylinder (14) forward from above the driver's cab, which will be described later, the work frame (12) is moved as shown in the fourth fork. ) can be used as a rotating wheel point, and the truck frame (11) can be raised to an inclined state with the front curved. As described above, the work frame (12) has a generally horizontal shape when viewed from above, and has a shape in which the biased position on the left side (uncut side) extends forward for a long time.

(16) is the engine mounted in the front position of the truck frame (11), and (17) is the same frame (11).
) is a running transmiff cylinder installed at the rear of the engine ( 16) and is transmission connected to the output shaft (21). In that case, the intermediate shaft (18) is connected to the work frame (12).
) is horizontally mounted at a position offset rearward by a fixed distance (d) from the horizontal axis (13) which forms the rotation fulcrum. In addition, the output shaft (21) and intermediate shaft (1) of the engine (16)
For pulleys such as 8), illustration symbols are omitted.

(22) is a pair of left and right running crawlers 1 that are rotated by the power taken out from the transmission (17).
(23) is a rush binding bed located at the front of the truck frame (11) and also covers the entire top surface of the engine (16); (24) is a rush binding bed following the binding bed (23); This is the main deck for loading rush bundles that covers the entire upper surface of the transmission (17), intermediate shaft (18), etc., and as suggested by the side view in Figure 1, it is preferably made of metal plate material with an abbreviated shape. In addition, the above-mentioned binding floor (
A certain height difference (h) is also provided between the front and rear of the main deck (23) and the main deck (24), so that the former is taller than the latter. The main deck (2
4) Inside, it is possible to accommodate as much rush bunches (gates) as possible.

(25) is the main deck (
The driver's cab is integrally extended rearward from the operator's control box (26) and the seat (27).
) and the frontispiece includes a roof (28).

Therefore, while riding on the driver's cab (25), the operator can visually check the loading capacity of rush bundles (M) on the main deck (24) located just before the driver's cab (25), and can extend the control to the main deck (24). It is also easy to correct irregularities in loading conditions and stability.

(29) is a vertical axis (3o ), it is a sub-deck for loading Rush East that is pivotally mounted so that it can rise and fall freely, and is preferably integrated into a frame made of metal rods in an abbreviated shape when viewed from the front. The interior of the sub-deck (29) is open in communication with the interior of the main deck (24), and as is clear from Figures 5 and 6, there are grass bundles inside the main deck (24). (?l) is the aircraft (
10) is laid down as an extension along the left and right direction, but in this sub-deck (29) there is a rush bundle (gate).
It will be placed lying down so that it also extends along the longitudinal direction of the fuselage (10).

(31) is a rotating piece that integrally extends from the framework material at the rear position of the sub-deck (29); (32)
is a hydraulic cylinder for raising and lowering the sub-deck attached to the lower surface of the driver's cab (25) so as to correspond to the position corresponding to the rotating piece (31), and is pivotally connected to the rotating piece (31). By moving the piston rond (33) back and forth in the left and right directions from above the driver's cab (25), the sub-deck (29) is moved about 90 degrees around the fulcrum of the vertical axis (30).
It can be raised and lowered by a certain angle range (α) of degrees.

As shown in Figure 5, you can see a bunch of rushes (
M) can be stably loaded, and by flipping the rushes (M) downward as shown in Figure 6, the rush bundle (M) can be easily loaded to the right side (already cut side) of the machine (10). can do. By changing the undulating rotation angle (α), the loading amount of rush bundles (M) can also be adjusted.

Hydraulic cylinder for raising and lowering the sub-deck (29)
(32) and the hydraulic cylinder (14) for raising and lowering the working frame (12) are as extracted in FIG.
It goes without saying that the levers 5) are operated separately from the driver's cab (25). (36) is a hydraulic pump that pumps hydraulic fluid to the two types of hydraulic cylinders (14) and (32), and the engine ( 16). (3
7) are still two types of hydraulic cylinders (14) (32)
It is a common oil storage tank, and is fixedly installed on the trunk frame (11) like the pump (36).

(38) and (39) indicate the oil feed pipes, respectively.

(40) is a series of working mechanisms (A) to (G) mentioned earlier.
This is a primary power distribution shaft for inputting working power to the work frame (12), and is supported at a position biased to the left side (uncut side) of the work frame (12). This primary power distribution shaft (40)
, 3, it is horizontally suspended parallel to the horizontal axis (13) and the intermediate axis (18), and is located in front of the horizontal axis (13).

The primary power distribution shaft (40) and the intermediate shaft (1)
The front and rear of the engine (8) are electrically connected via a relatively long endless third transmission bell (41), and therefore the single engine (11) mounted on the truck frame (11)
16), the primary power distribution shaft (40) is rotationally driven. In that case, as suggested from FIGS. 1 and 9, the pulley (4
2) is a pulley (
It is dimensioned to be considerably larger in diameter than the (illustrated reference numeral omitted).

(43) is inside (right side) of the above primary power distribution shaft (40)
The first bevel gear mechanism is integrated into the shaft end (this is indicated by a gear case in the figure, and the same applies to the second to sixth bevel gear mechanisms described later).
From now on, as shown in Figures 8 and 9, the transmission shaft (44) will stand up toward the upper clamping and conveying mechanism (C), and the converging and conveying mechanism (F) and binding mechanism (G) will also be located on the right side. A power transmission shaft (45) horizontally mounted toward the center is set out in a distributed state.

Similarly, a working transmission (46) is also interposed at an intermediate position of the primary power distribution shaft (40), and a power transmission shaft ( 47), the weeding mechanism (A), the pulling mechanism (B), and the reaping mechanism (
A power transmission shaft (48) that is used for all three of D) is distributed and horizontally suspended parallel to the primary power distribution shaft (40) itself.

In other words, the work frame (12) forming the front part of the aircraft (10)
) A series of working mechanisms installed in a locally concentrated arrangement above (^
) to (G) are caused by the engine (16) mounted on the trunk frame (11) which also forms the rear part of the aircraft (10).
They are all driven via the primary power distribution shaft (40).

At this time, the tension roller (49) that contacts the third power transmission bell (41) from below is mounted on a shaft on the side of the truck frame (11) in the fixed a' position, and the tension roller (49) is mounted on the track frame (11) side in the fixed a' position, and the tension roller (49) When lifted around the fulcrum of the shaft 13), based on the existence of the above-mentioned constant distance M(d), the third power transmission belt (41) is moved from the tension roller (49) as shown in Fig. 4. It floats up and relaxes, and its transmission function is automatically released.

Even if the working clutch lever, which will be described later, is operated to the engaged state for transmission, the working frame (12)
When lifting, the transmission function is cut off. Therefore, it is possible to effectively prevent unexpected personal accidents while not working.

The above working mechanism (A) to (G) imparts a series of actions to rushes.
), first of all, regarding the rush pulling mechanism (B), it is biased to the front end position on the left side (uncut side) of the work frame (12), and is paralleled in a rearward tilted state at a certain angle. A pair of inner and outer (right and left) drawer chenoke cases (50)
(51) and an endless lifting ceno (52) (5
3), and a large number of raising claws (52) and (53) pivotally attached at regular intervals to each of the chinos (52) and (53) so as to be able to rise and fall freely.
54) (55), and its raising claw (54)
When (55) moves upward, Cheno case (50)
It overhangs from (51) and raises the rushes as if combing them by itself.

(S) is a rush passageway formed between the opposite sides of the drawing-drawing chenoke case (50) (5, 1); The chenoke cases (50) are arranged side by side in an open position as shown in FIG. 2, so that they form a substantially right-angled triangle when viewed from the front. However, both chain cases (50) (
51) may be divided equally into a raised passageway (S) opening in a V-shape when viewed from the front.

And in any case, the inner Cheno case (50)
has a raised ceno (52 cm) over its entire vertical length.
) is built in so that it rotates, whereas the outer chain case (51) houses a hoisting chain (53) that rotates only in its lower half, and both of its chains (
52) The raising pawls (54) and (55) of (53) are arranged in a staggered manner and rotate upward in an orderly manner.

In other words, the pulling passageway (S), which opens in a triangular or V-shape when viewed from the front, is located from the left and right direction of the cutting mechanism ([1) where the stock cutting action width (-) by the clipper blade is the base, so to speak. The picture raising claws (5
4) The lifting action limit (P) of (55) is positioned at the midway height of both chain cases (50) and (51). Moreover, the width of the cutting action at the bottom (@) corresponds to two rows of rushes, and while the two rows of rushes are pulled up all at once, they can eventually join together from the tip side. It has become.

(56) is a secondary power distribution shaft which is installed at a rear position of the outside lifting cenocase (51) in an upwardly tilted position approximately parallel to this, and whose lower end is connected to the above-mentioned weeding mechanism (A). 3, the pulling mechanism (B) and the reaping mechanism (D).
the second bevel gear mechanism (57) to the transmission shaft (48) which is also used for
The clipper blade (59) that forms the reaping mechanism (D) moves in a straight line in the left-right direction by the transmission shaft (58) that extends downward from the second bevel gear mechanism (57). It is designed to move back and forth.

The clipper blade (59) is connected to the work frame (12) in a state where the clipper blade (59) crosses behind the lifting path (S).
As mentioned above, the cutting width (-) of the stem base corresponds to two rows of rushes.

On the other hand, at the upper end of the secondary power distribution shaft (56), there is a third bevel gear mechanism (60) and a fourth bevel gear mechanism (61) located inside (on the right side) thereof, as shown in FIG. Detour transmission shaft (62
) are installed in parallel via the fourth bevel gear mechanism (
A lifting chino (52) inside the inner chino case (50) is rotatably driven by a transmission shaft (63) extending forward from the chino (61).

(64) is the fifth bevel gear mechanism which is also assembled at the mid-height position of the secondary power distribution shaft (56). The lifting chino (53) inside (51) is rotatably driven. It goes without saying that the inner and outer pairs of the raising chinos (52) and (53) rotate synchronously in the above-mentioned alternating and intricate state.

(66) is the lifting claw (54) of the lifting mechanism (B).
) (55) to quickly straighten the rush to the tip side, and the rotational driving force of the blower fan (67) is the primary power distribution device. It is adapted to be taken out from the outer (left side) shaft end of the shaft (40).

That is, in Figure 10, which is extracted and enlarged, (68)
is the hanging pulley (42) of the third power transmission belt (41).
) is a transmission pawl plate that is fitted in such a way that it can be freely inserted and removed from the lateral outside and rotated integrally with the transmission pawl plate, and is provided with a support shaft (69) that protrudes laterally from the center thereof.
(70) is the rotating shaft of the blower fan (67) facing this, and the blower fan (
A speed increasing gear mechanism (71) of 67) is inserted and installed.

The speed increasing gear mechanism (71) allows the blower fan (
67) Even though it is made as small and lightweight as possible, it is still able to generate high-speed, high-intensity wind power.

(72) is the gear case (73) of the speed increasing gear mechanism (71)
pedestal (74) for installing on the work frame (12);
) is a fan case that is fixedly integrated into the case (73), (75) is a mesh-type air inlet opening in the center, and a safety cover (76) is attached from the side outside.
covered by. (77) is a fan case (
74), and as is clear from FIG. 1, it extends along the left side end of the work frame (12) and slopes downward at a certain angle. Also, an air jet nozzle (78) at the front end of the lower part.
is in an open state pointing from the front 1 of the outer lifting chain case (51) to the rush to be raised.

In other words, the air jet nozzle (78) of the air discharge pipe (77) that is integrally ejected from the blower fan (67) is attached to the attachment piece (79) on the outer weeding blade of the weeding mechanism (A), which will be described later.
) is fixedly supported by the chain case ( 50) and is opened diagonally upward.

Therefore, the rush is attached to the lifting claw (54) of the lifting mechanism (B).
Just before it gets caught in (55), the blower fan (
67), the air jet quickly rectifies the rush into a vertical state, and also ensures that the entanglement on the tip side is separated, and that the two rushes are pulled up without omission. Despite this, there is no risk of damaging the stem culm.

(80) is an air blowing guide plate that receives and stops the air jet from the air jet nozzle (78) and guides it upward reflectively, and extends along and approximately around the inner lifting chain case (50). The splint is fixed to the lower half as a constant-height protrusion facing forward.

Therefore, as shown in Figure 12, the air jet that hits the debris is refracted upwards and is used to pull up the rushes without any loss, significantly increasing the efficiency of the action. It is possible.

Next, the rush weeding mechanism (A) moves adjacent rows of rushes to be planted from the field prior to the raising action by the raising claws (52) (53) of the above-mentioned raising mechanism (B). For this reason, it is installed at the frontmost position on the left side (uncut side) of the work frame (12), and its configuration is as shown in Figs. 13 to 16 in the case of the present invention. There is.

That is, in the same figure, which shows the details of the weeding mechanism (A) enlarged, (81) and (82) are the clipper blades (59).
A pair of parallel inner and outer (right and left) weeders that define the cutting action width (-) at the base of the work frame. The above-mentioned inner lifting chain case (50) is fixedly supported on the outer branching tree (81), and the lower end of the outer lifting chain case (51) is fixedly supported on the outer branching tree (82). There is.

Moreover, both branches m (81) (82) are in a horizontal state along the ground, and the chain case (50) (5
1), and a rush introduction guide rod (83) is integrally bent and raised from the front end of the inner rush m (81). , There is also a divider arrow (divider) at the front end of the outer divider (82).
> (84) is fixedly installed. In that case, while the inner grass 4a (81) has a relatively wide flat plate form, the outer grass i (82) has a cross section U with an upper opening.
It is curved in the shape of a letter, and the mounting piece (79) of the air discharge pipe (77) is fixedly attached to the inside thereof.

(85) is a support stay that is integrally attached and erected from a position near the front end of the outer weeding arrow (84) in a front-curved inclined state so as to be hidden behind the weeding arrow (84); As is clear from FIG. 14, the mounting shaft (87) of the cross-shaped universal joint (86) is integrally welded to this.

(88) is a fixed yoke that forms a cross-shaped universal joint (86) in conjunction with the swinging yoke described later, and the support shaft (87)
) are fitted and fixed together with a through pin (89).

Further, (90) is a crankshaft that is supported through the outer lifting chain case (51) at a mid-height position, intersecting the chain case (51) in an upwardly inclined state, and has a plurality of bearings (91). ) is rotatably supported. (92) is its bearing case, which is fixedly supported by the outer lifting chain case (51). In other words, the lifting chain case (51) also serves as a support supporting the crankshaft (90).

(93) is a sixth bevel gear mechanism installed between the upper and lower sides of the third bevel gear mechanism (60) and the fifth bevel gear mechanism (64) in the secondary power distribution shaft (56), This allows the rear upper end of the crankshaft (90) to connect to the secondary power distribution shaft (
56) are transmission connected. Therefore, the crankshaft (90) is connected to the engine (I6) which is then introduced from above.
It will be rotated by the power of.

At this time, the rotational axis (Y-Y) of the crankshaft (90) is tilted upward at a constant angle (β) that is gentler than that of the lifting chain cases (50) (51), and therefore, as described later, The hollow straight pipe for sorting rushes is designed to quickly get into the rushes in the field. The lower front end of the crankshaft (90) is continuously bent by a certain eccentric amount (amplitude) (X) from the rotational axis (Y-Y), and the lower front end and the outer branch are bent. It faces the support stay (85) of the machine (82) at a constant distance. A hollow straight pipe (94) for distributing rushes made of ABS resin, other synthetic resin, metal, etc., which has both rigidity and flexibility, is interposed between the upper and lower sides. In other words, the eccentric crank portion of the crankshaft (9o) is set as a hollow straight pipe (94) that acts to distribute rushes. The hollow straight pipe (94) has a diameter of about 10 cm, which is thicker than the crankshaft (9o) itself, and its lower front end is closed by a so-called raised-bell type fixed cap (95).

(96) is a mounting shaft integrally welded to the cap (95), which is the mounting shaft (96) of the fixed yoke (88).
87). (97) is a cross-shaped universal joint (8
6), which is fitted onto the above-mentioned mounting support shaft (96) and is also assembled integrally with a through pin (98). (99) is a cross spider interposed at the intersection of the swinging yoke (97) and the fixed yoke (88), which allows both yokes (88) (97
) are pivotally connected in a cross shape.

Therefore, the lower front end of the hollow straight pipe for sorting rushes (94) is supported by the support stay (85) by the universal joint (86).
The movement of the human body is likened to the movement of the human body, as the head only moves in conjunction with the movement of the body, as if refracting by a certain angle (γ), and there is no risk of the body rotating. While facing in one direction, it only performs a revolving action, as if being swung around from the neck.

Therefore, a cruciform universal joint (
86), then a dice-shaped piece in place of the cross spider (99) and both yokes (8B) (9
7) and a cross pin pivotally connected to the cross pin may be adopted. A bellows (100) is attached between the yokes (88) and (97), and has a dustproof function.

On the other hand, the rear upper end of the rush distribution hollow straight pipe (94) is fitted onto the lower front end of the crankshaft (90), and is loosely supported by a bearing (101). (102) is a bearing case fitted and fixed to the hollow straight pipe (94), (103) and (104) are retaining rings for the shaft circumference and Okawa, (105) is for the hollow straight pipe (94).
It is a cover plate that closes the rear upper end of the crankshaft (9
It is integrally extended from 0).

As mentioned above, the hollow straight pipe for rush distribution (94) is pivotally supported at its lower # end to the middle support stay (85) of the outer grass divider (82) via the cross-shaped universal joint (86). Similarly, since the loose bearing of the bearing (101) is fitted into the lower front end of the crankshaft (90) at the upper rear end, the crankshaft (90) itself is aligned with its rotational axis (Y). -Y), the hollow straight pipe (94) of the eccentric crank part has an overall downwardly tapered conical motion trajectory that intersects the rotation axis (Y-Y) by a certain angle (T). While drawing the axis of rotation vA(Y-
Since only the revolving action is performed at the center of Y), the rushes can be reliably divided, and uncut rushes lying down in the field are also raised.

In that case, the hollow straight pipe for sorting rushes (94), as its literal hollow straight pipe, is inserted between the upper and lower front ends of the crankshaft (90) and the support stay (85) after being assembled in a stable state. The crankshaft (90
) Since its own rotational driving force is directly generated as the revolving force of the distribution hollow straight pipe (94), there is no transmission loss at all, and the pipes are entangled intensely and densely. Although it is subjected to the weeding action of rushes and the shedding action of two rushes at once, it can withstand the entanglement and separation resistance sufficiently, and always draws a perfect circle with the correct cross section as its orbital trajectory as shown in Figure 16. Therefore, there is no risk of unauthorized deformation.

The fact that the hollow straight pipe for distributing rushes (94) is thicker than the crankshaft (9o) in terms of the above-mentioned diameter also works organically for this purpose. Moreover, not only is it thick, but it is also supported on its axis so that it does not rotate, so the hollow straight pipe (94) comes into contact with the rushes after a large surface area (T), and there is no risk of the rushes getting wrapped around it. . Moreover, since the contact surface area (T) with the rush is large and the contact pressure is conversely small, damage to the rush can be effectively prevented.

Furthermore, as mentioned above, the air blowing nozzle (78) of the blower device (66) is also exposed in front of the outer lifting chain case (51), so the air blowing nozzle (78) is exposed as shown in Fig. 11.12. Due to the synergistic effect of the air agent and the revolving hollow straight pipe for sorting (94), rushes can be divided and raised more efficiently and completely.

In that case, in the present invention, the high pressure air generated by the blower (66) is
4) is also fed into the interior from the front and back. That is, in FIGS. 13 to 16, where this is clear, (106) represents the air discharge pipe (77) of the blower fan (67) as a thick trunk, and air distribution pipes that branch out from it into thin branches. Needless to say, while maintaining the communication connection state with the discharge pipe (77),
It integrally extends forward along the outside weeder (82).

The front end of the air distribution pipe (106) is fixed and integrated with the lower part 1 of the rush distribution hollow straight pipe (94) by welding or other means so that it is open for communication from behind. There is. The air pressure-fed from the blower fan (67) is primarily blown onto the rushes from below through the air jet nozzle (78) of the discharge pipe (77), and Its discharge pipe (7
The air distributed from 7) passes secondarily through the air distribution pipe (106) to the above-mentioned hollow straight pipe for distribution (94).
).

(107) is a bellows or other telescopic flexible joint inserted and installed in the middle of the air distribution pipe (106), which allows the distribution hollow straight pipe (94) to perform the above-mentioned orbital movement without any hindrance. It's meant to be licked. Hollow straight pipe (
94) to the back of the lower position in the air distribution line (1
06) is fixed and integrated, the hollow-straight pipe (9
4) It can be said that it will also be useful as a restraining support to prevent the rotation effect.

(108) is an air jetting nozzle that has openings formed in a scattered manner throughout the working surface of the distribution hollow straight pipe (94) that comes into contact with the rushes, and air is ejected from there toward the rushes. It is designed to be sprayed. Therefore, the possibility that rushes and other impurities attached thereto may become entangled in the hollow straight pipe (94) is completely prevented. Air jet nozzle (108) of the hollow straight pipe (94)
From the relationship with the air jet nozzle (78) of the discharge pipe (77), the latter is the primary air jet nozzle (78).
7 days), whereas the secondary air jet nozzle (
108).

In this regard, in the figure, a large number of air jetting nozzles (108) are installed at approximately the lower half of the distribution hollow straight pipe (94), which is installed on an inclined rearward slope, and on the front half of which has an arcuate cross section.
The openings are distributed intensively in a staggered arrangement. Since the hollow straight pipe (94) does not rotate on its axis as described above, almost the front half of it forms the working surface that comes into contact with the rushes, and the remaining almost upper half of the hollow straight pipe (94) Since the primary air is blown up from the air jetting nozzle (78) of the discharge pipe (77), the processing of the secondary air jetting nozzle (108) in this zone was omitted.

However, the primary air jet nozzle (78) is not fully opened at the front end of the discharge pipe (77), and the blower fan (
When adopting a configuration in which air is directly sent only into the distribution hollow straight pipe (94) from the hollow straight pipe (94),
94), including the upper half of the air jet nozzle (10
8) can also be formed with an opening. .

Next, FIGS. 17 and 18 show a modified embodiment of the present invention in place of the above configuration, in which the eccentric crank part of the crankshaft (90) is used as the core, and the sheath of the eccentric crank part is used as the core for distributing the By fitting the hollow straight pipe (94) into the mantle, the eccentric crank part is formed into a so-called double structure. (1
09) (110) is a pair of bearings that loosely support the upper and lower ends of the hollow straight pipe (94);
112) (112) is the hair ring case, which keeps both the upper and lower ends of the hollow straight pipe (94) closed. In addition, the lower front end of the crankshaft (90) is attached to the support stay (85) of the outer branch fi (82),
It is also loosely supported via a bearing (113).

Therefore, the crankshaft (90) is inserted into the engine (
16), the distribution hollow straight pipe (94) becomes the rotation axis of the crankshaft (90) itself! (YY
) and a certain angle D) while drawing an overall tapering truncated cone-shaped motion locus, only a revolution action is performed, and the rushes can be sorted.

(Xt) (Xt) indicates the amount of eccentricity (amplitude) at the lower end of the eccentric crank portion that acts as the core, and the amount (amplitude) of eccentricity at the upper end, but the former is larger than the latter. Since the dimensions are small, hollow straight pipes for distribution (
94) will draw a truncated conical orbit as described above. In addition, the code (0) is the rotation axis that intersects while maintaining the above constant angle (γ)! It is a virtual intersection point with W (YY), and is positioned below the ground level of the outer grass division 4a (82).

Even in the case of such a modified embodiment, the air distribution pipe (106) is also connected from the air discharge pipe (77) of the blower fan (67) along the outer branch* (82).
) are integrally extended forward, and the front end of the receptacle formed on the back surface of the lower part of the distribution hollow straight pipe (94) is loosely connected to the inlet (114) in a communicating state. Air is introduced into the hollow straight pipe (94). The reason why they are loosely connected to each other is to avoid interfering with the above-mentioned revolution movement of the hollow straight pipe (94).

(115) is the front end of the air distribution pipe (106) and the hollow straight pipe (94) side of the receiving port (114). It is a telescopic flexible joint that prevents air leakage and also serves to rotate the hollow straight pipe (94). In addition, the front end of the air distribution pipe (106) is connected to a flexible joint (11).
In accordance with 5), the connection to the inside of the hollow straight pipe (94) from the rear also helps to prevent rotation of the hollow straight pipe (94).

Note that the other configurations in the above modified embodiment are as follows:
Since it is substantially the same as the basic embodiment shown in FIG.
．． 18, the corresponding symbols with those in FIGS. 13 to 16 will be omitted, and a detailed explanation thereof will be omitted, but in any case, the air discharge pipe (77) of the blower fan (67) and the distribution pipe (106) can be created in advance as a continuous real air blowing pipe (116), and the air jet nozzle (78) of the discharge pipe (77) can also be used by omitting its installation. It is possible.

Furthermore, in both the basic embodiment and the modified embodiment,
It is also effective to apply a lubricating action to the rush with water before the rush is raised by the raising claws (54) and (55). (117) and (118) are a pair of inner and outer (right and left) water jet nozzles that form the lubricating device (119), and are connected to the above-mentioned lifting chain case (50) (51) and splitting fi (81) (82). Compatible. The pair of water jet nozzles (117) (118) are raised and positioned just in front of the chain case (50) (51),
They are each fixedly supported by the 4m grass dividers (81) and (82).

In that case, the outer water jet nozzle (118) faces the position just before the air jet nozzle (78), but in any case, the rain water jet nozzle (117) (11B)
As shown in Fig. 20, they are oriented almost directly above when viewed from the side, and when viewed from the front, they open obliquely upward so that they are parallel to each other in a V-shape.

The water flow is forced from the rainwater spouting nozzle (117) (11B) toward the grass, wetting the stem culm in a state of condensation and acting as a lubricant to eliminate the cause of damage, and the water flow The purpose is to actively participate in the weeding and raising action of the rushes by spraying them as a water jet in a manner that squeezes the rushes up from the plant side.

(120) is a water storage tank detachably installed in the cab (25) of the aircraft (10), and this and the rainwater spouting nozzles (117) (118) are connected to the water supply pipe (121) such as a flexible hose. ) are connected in communication.

The water pipe (121) is connected to the fuselage (10) as shown in Figures 1 to 3.
along the left side edge of the track frame (11) side toward the work frame (12) side, and a pair of branches m (81) ( 82) and then the rainwater spout nozzle (11).
7) It is piped in a branched manner to (118). (123
) is a branching support protruded downward from the front end of the work frame (12) for smooth branch piping to the inner branch m (81).

(124), (125), and (126) are electromagnetic valves, pumps, and their driving motors, which are respectively inserted and installed in the middle of the water supply pipe (121), and as is clear from the control circuit in Fig. 21. , the lever is operated by the operator from above the driver's cab (25).

In other words, when applying the lubricating effect of water to rushes, the electromagnetic valve (124) is in an open state, and the pump (
In order to prepare each of the working mechanisms (125) for operation, the main switch (127) is turned on, and the working mechanism (125) of the series is turned on.
In order to transmit working power from the engine (16) to A) to (G), by operating the working clutch lever (12B), the interlock switch (129) for connecting the working mechanisms (A) to (G) is
) is turned on, and the water in the tank (120) is operated by the pump (125), and the rainwater spouting nozzle (117) is activated.
) (118).

If such a control circuit is adopted, the main switch (1
27) by keeping it in an off state in advance,
It is also possible to harvest rushes without using the lubricating device (119).

In this regard, in the figure, in order to be able to replace the water storage tank (120) itself, the water supply pipe (121) is removably inserted into the tank (120), and the water absorption B-lube (1
30), but the water supply pipe (121) and the water storage tank (120) are connected and integrated in advance so that only water can be replenished into the tank (120). Also, the above electromagnetic valve (124)
This is to prevent the natural suction of water due to siphon action. (131) indicates a battery.

The rushes that have been subjected to the weeding action and the raising action as described above pass through the raising passage (S) in a merging state, and are transferred to the tip-side pinching and conveying mechanism (C) behind it as shown in Fig. 22. It is automatically pulled in and introduced, and as soon as the tip side is caught, it is cut by the clipper blade (59) of the stock cutting mechanism (D>).

Then, the harvested rush is lifted and transported to the rear of the machine (10) with its tip side being clamped by the clamping and transporting mechanism (C). By the horizontally mounted scooping and sorting mechanism (E), the root side of the stock is taken out and conveyed laterally as shown in Figures 23 and 24, and the entire stock is turned sideways into a curved state with the pinching position on the tip side as the fulcrum. will be directed to

The stem side of the rush, which has been turned to its side, is then automatically picked up by the converging conveyance mechanism (F) on the bundling bed (23) and introduced directly into the bundling mechanism (G) at the rear position. The binding mechanism (G) acts as a binding mechanism. At the time of binding, the tip side of the rush is released from the clamping state by the clamping and conveying mechanism (C), and is released from the binding bed (23) to the main deck (24) as a rush bundle (M). , kept in its loaded state. As mentioned above, Igusa Higashi (?I) can also be loaded on the sub-deck (29).

In addition, in the figure, as a rush harvester for mowing two rows, the lifting path (S) is constructed by installing the lifting cheno cases (50) and (51) of the lifting device (B) in parallel with the legs open.
The opening is triangular or V-shaped when viewed from the front, but as long as the passage (S) is a wide opening without a partition and two rows of rushes can be introduced into it in a merging state, it is difficult to raise the opening. A pair of chenoke cases (50) and (51) may be arranged side by side in an upright position parallel to each other. In any case, the water jet nozzle (117) (11B) can be fixedly installed only on either one of the two grass species (81) (82).

Also, use the raised cheno case (50) (51) as one piece only on the inside, and raise the outside one to create a chino case (52).
By forming it into a mere guide post without a built-in
It is also possible to implement the present invention for cutting a single row of rush. In that case, the bearing case (92) of the crankshaft (90) will be fixedly supported by the guide column. Also, water jet nozzles (117) (118
) is fixedly installed on one or both of the grass species (81) and (82).

Furthermore, it goes without saying that the present invention can also be applied to a walking-type rush harvester in which the installation of a driver's cab (25) is omitted.

<Effects of the Invention> As described above, in the present invention, the weeding arrow (84) is fixedly installed at the front end of the weeding 4a (82) that is projected forward from the aircraft body (10) along the ground, and the weeding arrow (84) is A crankshaft (90) is erected from behind the arrow (84) in an upwardly inclined state after a certain angle (β), and the eccentric crank portion of the crankshaft (90) is made thicker than the crankshaft (90) itself. Hollow straight pipe for sorting rushes (
94), when a rotational driving force is applied to the crankshaft (90) from the rear and upper side, the hollow straight pipe (94) forms a certain angle (T) with the rotational axis (Y-Y) of the crankshaft (90) itself.
In a rush harvesting machine that is designed to perform only a revolution action while drawing an overall tapered conical or truncated conical motion locus that intersects only by
4), while keeping both the upper and lower ends of the hollow straight pipe (94) closed, and forming a large number of air jet nozzles (108) in a scattered distribution on the working surface of the hollow straight pipe (94) that comes into contact with the rushes. A blower pipe (116) facing the inside of the hollow straight pipe (94) from behind is connected in communication with a blower fan (67) mounted on the aircraft body (10), and the hollow straight pipe (94) is During the action of sorting the rushes by the revolving movement, the hollow straight pipe (94) is released from the blower fan (67).
), the air is forced into the inside of the air jet nozzle (
108) so that the spray is directed toward the rushes, which has the effect of overcoming all the problems of the prior art mentioned at the beginning.

That is, in the case of the present invention, the hollow straight pipe (94) for distributing rushes forming the eccentric crank part of the crankshaft (90) is thicker than the crankshaft (90) itself, and has an overall tapered conical shape or While drawing a truncated cone-shaped movement trajectory, the rushes are distributed by performing only a revolution action, and during the distribution action, the air pumped from the blower fan (67) is , an air jet nozzle (10) opened on the working surface of the hollow straight pipe (94).
8), so that the rushes are blown onto the rushes, so the rushes, their accompanying dead debris, foreign matter, etc. are removed.
The heat does not cut into the hollow straight pipe (94), and there is no risk of damaging the stem culm of the normal rush to be harvested.

Such an effect can be equally achieved by the hollow straight pipe (94) for distributing rushes described in either of the fourth and fifth aspects.

In particular, if the structure of claim 2 or claim 3 is adopted, the air generated by the blower fan (67) is
08), but also primarily from the air jet nozzle (78) of the air discharge pipe (77) directly onto the rushes, so that the air is violently emitted at high altitudes. Even densely intertwined rushes can be completely separated, even to the tip, by the synergistic effect of the revolving movement of the thick hollow straight pipe (94) and the high-pressure air jet.

In addition, the air jet nozzle (of the air discharge pipe (77))
The primary air ejected from the rush (78) is blown up from the base side of the rush, so the rush can be maintained in an orderly posture for fledging, and as a result, the subsequent raising claws (54) ) (55) is also performed extremely smoothly and appropriately. It goes without saying that the above configuration of the present invention achieves the effects of the prior invention mentioned at the beginning.

[Brief explanation of the drawing]

1 to 3 are a side view, a front view, and a plan view showing the general overview of the rush harvesting machine according to the present invention, and FIG. 4 is an overall side view showing the lifting operation state of the work frame corresponding to FIG. 1. , 5th
, Figure 6 is a partially enlarged rear view showing the loaded and unloaded states of rush bundles, and Figure 7 is an explanatory diagram showing the control circuit of the hydraulic cylinder for raising and lowering the work frame and the hydraulic cylinder for raising and lowering the sub-deck. , Figure 8.9 is a rear view and plan view showing the power distribution system to the working mechanism, Figure 10 is a partially enlarged cross-sectional view showing the installed state of the blower, and Figure 11.12 is the blowout of air against rushes. Side view and front view showing the action, No. 13
The figure is a side sectional view extracting the weeding mechanism, Figures 14 and 15 are partially enlarged sectional views of Figure 13, Figure 16 is a sectional view showing the weeding action, and Figure 17 is Figure 13. 18 is a partially enlarged sectional view of FIG. 17, and FIGS. 19 and 20 are side and front views showing the water jet action on rushes. Fig. 21 is an explanatory diagram showing the control circuit of the rush lubricating device using water, Figs. 22 to 24 are side views, front views, and plan views showing a series of effects on the rush, and Fig. 25 is the same as Fig. 16. FIG. 3 is a cross-sectional view showing the weeding action of the corresponding prior art. (10) Aircraft (16) Engine (66) Air blower (67) Prower fan (77) Air discharge pipe (78) (108) Air jet nozzle (81) (8
2) Grass divider (84) Grass divider (85) Support stay (86) Cross-shaped universal joint (90) Crankshaft (91) (101) (109) (110) (1
13) Bearing (94) Hollow straight pipe for distribution (95) Fixed cap (106) Air distribution line (107) (115) Flexible joint (114) Receiving opening (116) Air supply line (A) Separation Mechanism (X) (XI) (Xt) Eccentricity (amplitude) (α) (β) (
γ) Constant angle (Y-Y) rotation axis

Claims (1)

[Claims] 1. Weeding machine 8 that is sent forward along the ground from the aircraft body 10
2, the dividing arrow 84 is fixedly installed at the front end of the
The crankshaft 90 is erected from behind at a certain angle β in an upwardly inclined state, and the eccentric crank portion of the crankshaft 90 is made into a hollow straight pipe 94 for distributing rushes that is thicker than the crankshaft 90 itself. When a rotational driving force is applied to the shaft 90 from the rear and upper side, the hollow straight pipe 94 intersects the rotational axis Y-Y of the crankshaft 90 itself by a certain angle γ. In a rush harvesting machine that is designed to perform only a revolution action while drawing a motion trajectory, both the upper and lower ends of the hollow straight pipe 94 for sorting rushes are kept closed, and the rushes in the hollow straight pipe 94 are A large number of air blowing nozzles 108 are formed in a scattered manner on the contacting working surface, and the air blowing pipe 1 faces the inside of the hollow straight pipe 94 from behind.
16 was connected in communication with a blower fan 67 mounted on the aircraft body 10, and during the distribution of rushes by the revolution of the hollow straight pipe 94, rushes were fed under pressure from the blower fan 67 to the inside of the hollow straight pipe (94). This weeding mechanism for a rush harvester is characterized in that air is set to be blown toward the rushes from an air jet nozzle 108. 2. An air discharge pipe 77 that integrally directs the blower pipe 116 forward from the blower fan 67, and the discharge pipe 7
7 and an air distribution line 106 integrally extending along the weed splitter 82, and a primary air jet nozzle 78 opening upward at the tip of the air discharge line 77 is formed. The tip of the channel 106 is fixedly integrated with the back side of the rush distribution hollow straight pipe 94 in a communicating state, and a bellows or other flexible joint 107 is interposed in the middle of the distribution channel 106. The weeding mechanism of the rush harvesting machine according to claim 1. 3. An air discharge pipe 77 that integrally discharges the blower pipe 116 forward from the blower fan 67, and the discharge pipe 7
7 and an air distribution line 106 integrally extending along the weeder 82, and a primary air discharge nozzle 78 opening upwardly at the tip of the air discharge line 77 is formed. The distal end of the channel 106 is brought into communication with the receiving port 114 formed on the back side of the hollow straight pipe channel 94 for distributing rushes, and the distal end of the distribution pipe 106 is loosely coupled with the receiving port 114. Fill the gap with a bellows or other flexible joint 1
2. The weed splitting mechanism for a rush harvester according to claim 1, wherein the weed splitting mechanism is sealed by a rush harvester. 4. The upper end of the hollow straight pipe 94 for sorting rushes is loosely fitted onto the lower end of the crankshaft 90 by the bearing 101, and the lower end of the hollow straight pipe 94 is likewise closed by the fixed cap 95. , its cap 95 and weeder (82)
2. The weeding mechanism for a rush harvester according to claim 1, wherein the weeding mechanism is pivotally connected to a support stay 85 attached to the rush harvester by a cross-shaped universal joint 86. 5. The lower end of the crankshaft 90 is loosely supported by a bearing 113 on the support stay 85 attached to the grass splitter 82, and the hollow straight pipe 94 for sorting rushes is used as a sheath of the crankshaft 90. 2. The weeding mechanism for a rush harvester according to claim 1, wherein both upper and lower ends of the hollow straight pipe 94 are loosely fitted onto the crankshaft 90 through bearings 109 and 110, respectively.