JPS6244887B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an improvement of a weed splitting device in a rush harvester.

BACKGROUND TECHNOLOGY In general, rushes have extremely strong tillering power and remarkable elongation, and when they grow to the height of an adult, their stem culms become tightly intertwined with each other and lie down. This problem cannot be completely prevented even if the so-called shading operation is performed.

Therefore, in order to reap and harvest, it is necessary to divide the rushes and then pull them up, and this work can be done using automatic mechanical power without damaging the stem culms or slowing down the work speed. , it is never easy to reliably weed.

Regarding this point, the applicant had previously
No. 56-41554 were proposed, and they were able to achieve considerable results, but as a result of continued intensive research, they discovered that there were still problems to be solved with these. Ta.

Problems to be Solved by the Invention Namely, in the prior art of the above number, due to its structure, the distribution rod is operatively connected to the crank movement mechanism so that it can be swung in the left and right directions; The action is flat, simply drawing a linear reciprocating locus, and no direct turning force is applied to the distribution rod.

Therefore, when working in a field where rushes are densely intertwined, or when working at a high speed, the sorting rod itself will have entanglement separation resistance, causing the rush to move from the state shown in Figures 11 and 12. When the state reaches the state shown in FIGS. 13 and 14, the amplitude becomes extremely small, the weeding ability weakens, and a situation arises in which weeding is no longer possible. At the very least, it is inevitable that the weeding effect will be reduced. As a result, the weeding ability is naturally limited, and as a result, the work speed has to be slowed down, resulting in poor work efficiency.

Also, by inserting and engaging the crank rod into the long groove of the L-shaped rod, or by inserting and engaging the distribution rod into the ring body of the L-shaped rod, the rotational motion of the crank is converted into the linear reciprocating motion of the distribution rod. Therefore, together with the high-density and severe entanglement, not only is there a tendency to cause a loss in the transmission of the driving force, but also the insertion and engagement portion generates noise during operation.

Means for Solving the Problems The present invention is intended to solve these problems, and for this purpose, the present invention includes an eccentric shaft that is rotationally driven by an engine installed in the aircraft body, and a swing cylinder for the eccentric shaft. It is attached and fixed to the upper support for the sorting rod, which is supported by a bearing in an idle state in which the rotational driving force is not transmitted to the end, and to the sled plate for supporting the dividing arrow that extends forward from the fuselage. A cross-shaped universal joint that performs only an oscillating action as if bent around its own pivot point; , comprising a distribution rod which is made of synthetic resin or other flexible hollow pipe material and is inserted between the upper and lower sides of the above-mentioned supports in an upwardly inclined state intersecting the horizontal plane; When inserting and installing the distribution rod between the two supports, the distribution rod is curved in an overall arc shape or dogleg shape capable of giving a constant amplitude, and one end of the curved distribution rod is is inserted into and removed from the upper support, while the other end of the distribution rod is fitted and fixed in a non-rotatable manner to the lower support, so that when the eccentric shaft is driven to rotate, the distribution rod rotates. The first feature is that it is set so that it revolves while drawing an overall spindle-shaped turning trajectory without moving.Also, it is also supported in an upright state on the fuselage, and the rotation from its installed engine A transmission shaft that transmits driving force to an eccentric shaft through a meshing mechanism of bevel gears, and a housing case for the bevel gears, which is installed in an inclined rearward position that intersects the transmission shaft at an acute angle when viewed from the side of the aircraft. Therefore, the eccentric shaft assembled and held at the mid-height position of the transmission shaft and the bearing in an idle state in which the rotational driving force is not transmitted to the oscillating cylinder end of the eccentric shaft. The cross is attached and fixed to the upper support for the sorting rod, which is attached to the upper support body for the sorting rod, and the sled plate for supporting the dividing arrow, which extends horizontally forward from the fuselage. It consists of a swivel joint, a lower support for the distribution rod that is non-rotatably fitted and fixed to the oscillation yoke of the swivel joint, and is made of synthetic resin or other flexible hollow pipe material. and a distribution rod that is inserted and installed between the upper and lower facing sides of both the supports in an upwardly inclined state, and when the distribution rod is inserted and installed between the two supports, the distribution rod is installed. The entire distribution rod is curved into an arc shape or a dogleg shape capable of giving a constant amplitude, and one end of the curved distribution rod is removably inserted into the upper support, while the other end of the distribution rod is similarly curved. By fitting and fixing it to the lower support in a non-rotatable manner, when the above-mentioned eccentric shaft is driven to rotate, the distribution rod does not rotate and revolves while tracing an overall spindle-shaped orbit. The second feature is that it is set.

Embodiments Hereinafter, the specific configuration of the present invention will be described in detail based on the illustrated embodiments. In FIGS. 1 and 2, which schematically show the entire riding-type rush harvester, 10 is a general term for the machine body, This is equipped with an engine 11. 12 is also a transmission,
It is transmission connected to the engine 11 via means such as an intermediate shaft 13 and a belt. 14 is a running crawler driven by the engine 11;
Reference numeral 15 denotes a work frame that forms a part of the fuselage 10 and extends forward, and various work devices described below are installed on the frame 15. Reference numeral 16 denotes a hydraulic cylinder, which is capable of raising and lowering the work frame 15 from its front end side around the horizontal pivot axis of the hinge 17 relative to the body 10.

The upper position of the engine 11 serves as a rush bundling bed 18, and the rear position of the rush bundling bed 18 serves as a loading deck 19 for rush bundles, both of which are set to be continuous with each other. Reference numeral 20 denotes a driver's cab that is integrally extended to the rear of the machine 10, and the operator can control the harvesting machine from the driver's cab 20 while observing various rush work conditions, the loading amount of the rush bunches, etc. You will be able to directly see and inspect the However, while the operator was walking in the field,
Needless to say, the present invention can also be applied to a type of rush harvester that is operated from the rear and moved forward.

Reference numeral 21 denotes a working power distribution shaft that extends and is supported along the left-right lateral direction (width direction) of the fuselage 10 parallel to the intermediate shaft 13, and the lateral end of one of the shafts (the left side in the figure) At this position, it is connected to the intermediate shaft 13 via a transmission belt 22, a bevel gear mechanism (not shown) in a gear case 23, etc., and the driving force is distributed from the engine 11 to various working devices. The working equipment includes a rush weeding device A and a pulling device B, a cutting device C for the base of the plant, a clamping and conveying device D for the tip of the rush, a pickle sorting device E for picking out waste, and a converging conveyor prior to bundling. It consists of a device F and a tying device G at the base of the plant, and a series of effects are sequentially applied to the rushes by these devices.

The weeding device A of the present invention is biased toward one lateral end position (in the figure, the left side when facing the direction of travel) in the left-right lateral direction (width direction) of the aircraft body 10. The details are as enlarged and extracted in Figures 3 and 4, and in both figures, 24 is a long sled plate extending horizontally forward from the lower end of the work frame 15 that forms part of the fuselage 10. A dividing arrow 25 for determining the cutting width is fixedly installed at the protruding tip. 26 is a sled plate 2 for supporting Kusaya 25.
Bolt 27 for attaching and fixing 4 to the work frame 15 is a stay that is located immediately behind the divider 25 and is integrally erected from the sled plate 24 in an upwardly inclined state. One yoke forming a cross-shaped universal joint 28 is fixedly supported.

In other words, one of the yokes is fitted as a fixed yoke 29 to a support shaft 30 welded to the stay 27, and is assembled and integrated with a pin 31 that also passes through the support shaft 30. . However, the support shaft 30 may of course be omitted and the fixed yoke 29 of the universal joint 28 may be fixedly integrated with the stay 27 of the sled plate 24 by direct welding or the like.

32 is a lower support of the distribution rod 33,
The other swinging yoke 3 in the above-mentioned universal joint 28
4 and is also connected and fixed by a through pin 35. Therefore, the lower support 32 swings by a certain bending angle, with the center of the cross spider 36 in the universal joint 28 as the pivot point 1, without rotating around its own axis.

The disassembled state of the universal joint 28 is shown in FIG. 5, but the cross-shaped universal joint itself is well known.
Therefore, as long as it is cross-shaped, the form shown in FIG. 6, which includes a piece 37 in place of the cross spider 36 and a cross pin 40 for pivotally connecting to both yokes 38 and 39, is also suitable.

As is clear from FIGS. 1 and 3, the sorting rod 33 is positioned at a certain angle α with respect to the horizontal plane so that the grass arrow 25 can be divided into the rushes that are densely growing in the field. It is used in an upwardly sloping installation condition, and is made of synthetic resin such as ABS resin or other flexible hollow pipe materials.
It is cut to a certain size that is slightly longer than the distance between the lower support member 32 and the upper support member, which will be described later, facing each other.

41 is the engine 11 on the distribution rod 33.
It is an eccentric shaft that provides a driving force from the shaft, and is integrally provided with an oscillating cylinder end portion 42 that is bent at an obtuse angle by a certain angle β with respect to the axis of rotation. X2 suggests its point of inflection. Reference numeral 43 denotes an upper support member of the distribution rod 33, which faces the upper support member 32 described above. The upper support body 43 is stabilized by a plurality of ball bearings 44 enclosed in the oscillating cylinder end 42 in a loose state where it is not subjected to rotational driving force from the eccentric shaft 41 and cannot be pulled out. It is bearing.

The oscillating cylinder end 42 of the eccentric shaft 41 has both a bearing case function and a coupling function for the upper support 43, and when it is actively rotated in use, the upper support 43 is in a relative position. The relationship is set so that there is no idling in the opposite direction, or even idling. Then, in order to give a constant amplitude W, the distribution rod 33 is curved into an overall arc shape or dogleg shape, so that its own constant length is forcibly shortened, so to speak, and the curved state Upper support under 4
3 and the lower support 32, which face each other, and the upper position of one cut-off end is kept in a loose state where it can be inserted and removed with the upper support 43, and the other end The lower position is fitted into the lower support body 32, and is fixedly integrated with the support body 32 by a through pin 45.

Therefore, when the eccentric shaft 41 is driven to rotate, the distribution rod 33 does not rotate, but revolves while tracing an overall spindle-shaped orbit based on the constant amplitude W.
In addition, since the distribution rod 33 can be inserted into and removed from the upper support 43, the distribution rod 3
An appropriate number of spacers 46 can be inserted between the upper end of the oscillating cylinder 33 and the oscillating cylinder end 42, and the degree of curvature of the distributing rod 33 can be adjusted by increasing or decreasing the number of spacers 46. This means that the amplitude W can be changed in advance during the above-mentioned insertion and installation.

It is also clear from FIGS. 1 and 3 that the eccentric shaft 41 extends in an inclined position upwardly rearward.
is fixed so as to rotate together through a key 48, and by meshing this with a bevel gear 50 corresponding to a mid-height position on the transmission shaft 49, rotation from the engine 11 is controlled. It is designed to receive driving force.

Reference numeral 51 denotes a bevel gear case that encloses the meshing transmission mechanism formed by both bevel gears 47 and 50, and as is clear from FIG. It is stably supported as it intersects an acute angle γ. The transmission shaft 49 is also installed in an upright state from the machine body 10, and its lower end is supported by the gear case 23 of the working power distribution shaft 21 described above, and the bevel gear in the gear case 23. It is transmission connected to the power distribution shaft 21 via a mechanism. Similarly, the upper end of the transmission shaft 49 is supported stably by a lifting chain case of the lifting device B, which will be described later.

Reference numeral 52 denotes a bearing sleeve for the eccentric shaft 41, which is assembled and integrated with the bevel gear case 51. 53 is a plurality of ball bearings for bearing the eccentric shaft 41; 54 is a collar; 55 is a retaining ring; 56
A plurality of ball bearings similarly support the transmission shaft 49, and 57 and 58 are collars and retaining rings thereof. In addition, although FIG. 3 suggests that the eccentric shaft 41 is made of one piece in advance over its entire length, it can be used as a plurality of short shafts as long as it can provide rotational driving force to the swinging cylinder end 42. Of course, it is also possible to assemble and integrate them into one whole.

The above-mentioned pulling device B has an installation angle α of the weeding device A.
It is installed at a steeper angle than the previous one. 59 is a lifting guide rod attached to the lifting chain case 60, and S is the case 60.
This is a lifting passage that is divided and opened between the opposing and parallel guide rods 59, and an endless lifting chain 61 is stretched around this passage S so as to circulate.

As is clear from FIG. 2, a large number of lifting pawls 62 are pivotally attached to the chain 61 at regular intervals so as to be able to rise and fall freely. At times, the user stands up to cross into the passage S and combs and pulls up the rushes that have been sloughed by the sorting rod 33. As mentioned above, the distribution rod 33 and the lifting passage S,
When viewed from the side of the machine body 10, the fact that they intersect at the mid-height position of the installed state also helps in the correct pulling up of the cut rushes. After the rush is raised, the tip side of the rush is held by the clamping and conveying device D, and in this state, the head side of the rush is harvested by the blade of the reaping device C.

Function In the weeding device A of the present invention, as described above, the upper position of the sorting rod 33 is at a position relative to the upper support body 43.
While it is supported in a loose state that does not receive rotational driving force from the eccentric shaft 41, its lower position is also fixedly integrated with a lower support 32 that does not rotate, and the lower support 32 is connected to a cross-shaped universal joint. The distribution rod 33 is assembled so as to perform only a swinging movement around the pivot point X1 of 28, and the distribution rod 33 itself is given a predetermined curvature, so its function is schematically shown in FIG. As shown, during weeding work in which the eccentric shaft 41 is rotationally driven, the sorting rod 33 has an upper bending point X2 and a lower pivot point X1.
Under the condition in which it is positioned, it will revolve around itself as if being swung around, while drawing an overall spindle-shaped orbit without rotating, so to speak. If we compare this to the movement of a human body, the distribution rod 33 performs only a revolving action, as if the human body were to be swung around from the neck while the face remains facing forward.

Therefore, the direction in which it is swung in relation to the uncut rush a, as shown in Figures 8 to 10, is
If it is used in a clockwise direction when viewed in the direction of movement, the distribution rod 33 will exert a pushing force as shown by arrow P1 in FIG. 10 on the stem culm of the uncut rush a. On the other hand, the opposite pushing down force shown by the arrow P2 acts on the rush b corresponding to the mowing width.

In other words, the acting force in the direction of disentangling the rushes is applied three-dimensionally to the rushes together with the amplitude W due to the curved form of the distribution rod 33. Border dividing rod 3
3 itself is not actively transmitted with the rotational driving force from the eccentric shaft 41 and does not rotate on its own axis, so there is no possibility that rushes may become entangled or cause damage to the stem culm. Nor.

In addition, one end of the distribution rod 33 is in loose engagement with the upper support 43, and the upper support 43 is freely rotatably supported within the swing cylinder end 42 of the eccentric shaft 41. However, the swinging force of the swinging cylinder end 42 is transmitted through the upper support 43,
Since the signal is directly transmitted to the distribution rod 33, the amplitude W is not small and there is no danger, and the bearing 44 does not generate noise.

Effects of the Invention As described above, the weeding device of the rush harvester according to the present invention includes an eccentric shaft 41 that is rotationally driven by the engine 11 mounted on the machine body 10, and an oscillating cylinder end of the eccentric shaft 41. 42 by a bearing 44 in an uncoordinated state in which the rotational driving force is not transmitted, and to the dividing rod support sled plate 24 that extends forward from the fuselage 10. A cross-shaped universal joint 28 that is attached and fixed and bends around its own pivot point X1 to perform only an oscillating action, and is non-rotatably fitted and fixed to the oscillating yoke 34 of the universal joint 28. Lower support for sorting rod 3
2, a distribution device made of synthetic resin or other flexible hollow pipe material and installed between the opposing upper and lower support bodies 43 and 32 with an upwardly inclined rear intersecting a horizontal plane; When installing the distribution rod 33 between the supports 32 and 43, the distribution rod 33 is provided with a rod 33.
3 into an overall arc shape or dogleg shape that can give a constant amplitude W, and one end of the curved distribution rod 33 is removably inserted into the upper support 43, while also distributing the rod 33. By fitting and fixing the other end of the rod 33 to the lower support 32 in a non-rotatable manner, when the eccentric shaft 41 is driven to rotate, the distribution rod 33 does not rotate on its own axis, and the overall spindle-shaped turning trajectory is maintained. Since it is set so that it rotates while drawing, it has the effect of completely solving the problems of this type of conventional technology mentioned at the beginning.

In other words, as already explained, when the eccentric shaft 41 equipped with the oscillating cylinder end 42 is driven to rotate, the distribution rod 33 does not rotate, but is centered around the bending point X2 and the pivot point X1. Because it revolves in a spindle-shaped orbit, it is possible to reliably apply a strong force to disentangle rushes that are tightly intertwined with each other. This means that an excellent weeding effect can be obtained.

Further, since the driving force for swinging the distribution rod 33 is directly applied from the swinging cylinder end 42 of the eccentric shaft 41, there is no loss in the driving force, and the work speed can be increased. However, the amplitude W will not become small and the weeding ability will not be weakened. Therefore, the weeding work can be done with high efficiency.

Moreover, since the sorting rod 33 is kept from rotating, rushes will not get wrapped around it or damage its stem culms. Furthermore, the distribution rod 33 has its upper support 43
The upper support body 43 is fitted with a bearing 44 at the oscillating cylinder end 42 of the eccentric shaft 41.
Since it is mounted on a bearing, there is no risk of it emitting noise.

The sorting rod 33 is installed and used at an upward slope that intersects with the horizontal plane, as it is necessary to separate the rushes in the field. As a support structure for the eccentric shaft 41, in particular, the transmission shaft 49 is supported in an upright state on the fuselage 10, and
When viewed from the lateral direction, the eccentric shaft 41 intersects the transmission shaft 49 at an acute angle γ and is installed at an upward slope, and is moved to a mid-height position of the transmission shaft 49 via the bevel gear case 51. If the eccentric shaft 41 and the transmission shaft 49 are connected to each other in a transmission manner by the meshing mechanism of the bevel gears 47 and 50 that are assembled and held and enclosed in the case 51, the support structure described above is extremely rational. This can be said to be of great practical benefit in that it can be made more rigid and can swing stably and smoothly to the distribution rod 33 to provide driving force.

[Brief explanation of the drawing]

Fig. 1 is an overall schematic side view of a rush harvesting machine according to the present invention, Fig. 2 is an overall schematic front view, and Fig. 3 is an enlarged side sectional view with a partial cutout showing the weed splitting device. , Fig. 4 is a partially enlarged sectional view taken along the - line in Fig. 3, Figs. 5 and 6 are exploded slope views showing two types of cross-shaped universal joints, and Fig. 7 is a schematic diagram showing the revolving action of the distribution rod. , Figures 8 and 9 are a front view and a plan view for explaining the weeding action of rush groups using the sorting rod, Figure 10 is a partially enlarged front view of Figure 8, and Figures 11 to 14 are a front view of the grass rush group. FIG. 9 is a front view and a plan view showing the weeding action of a conventional product corresponding to FIG. 10... fuselage, 11... engine, 24... sled plate, 25... branch arrow, 28... cross-shaped universal joint,
32... lower support body, 33... sorting rod, 34
... Swing yoke, 41 ... Eccentric shaft, 42 ... Swing cylinder end, 43 ... Upper support, 44 ... Bearing, 46 ... Spacer, 47, 50 ... Bevel gear, 49 ... Transmission Axis, A... Grass splitting device, W...
Amplitude, X1... Pivotal point, X2... Refraction point.

Claims (1)

[Claims] 1. The eccentric shaft 41 is rotatably driven by the engine 11 mounted on the aircraft body 10, and the rotational driving force is not transmitted to the oscillating cylinder end 42 of the eccentric shaft 41 by the bearing 44. It is attached and fixed to the upper support body 43 for the sorting rod which is bearing in a loose state and the sled plate 24 for supporting the dividing arrow which is sent forward from the fuselage 10, and is bent around its own pivot point X1. As shown, there is a cross-shaped universal joint 28 that performs only a swinging action, and a lower support member 3 for the distribution rod that is fitted and fixed in a non-rotatable manner to the swinging yoke 34 of the universal joint 28.
2, a distribution device made of synthetic resin or other flexible hollow pipe material and installed between the opposing upper and lower support bodies 43 and 32 with an upwardly inclined rear intersecting a horizontal plane; When installing the distribution rod 33 between the supports 32 and 43, the distribution rod 33 is provided with a rod 33.
3 into an overall arc shape or dogleg shape that can give a constant amplitude W, and one end of the curved distribution rod 33 is removably inserted into the upper support 43, while also distributing the rod 33. By fitting and fixing the other end of the rod 33 to the lower support 32 in a non-rotatable manner, when the eccentric shaft 41 is driven to rotate, the distribution rod 33 does not rotate on its own axis, and the overall spindle-shaped turning trajectory is maintained. A rush harvester's weeding device is characterized in that it is set to perform a revolving action while drawing. 2. In the direction of rotation of the eccentric shaft 41, the distribution rod 33 applies a pushing force P1 to the uncut rush a, and the distribution rod 33 applies a reverse push-down force to the rush b corresponding to the cutting width. The weeding device for a rush harvester according to claim 1, characterized in that the direction in which the force P2 is applied is specified. 3 The degree of curvature of the distribution rod 33 is determined by adjusting the degree of curvature of the distribution rod 33
Claims characterized in that the size can be adjusted and changed by changing the number of spacers 46 inserted between the oscillating cylinder end 42 and the upper support 43 facing each other. The weed splitting device of the rush harvesting machine according to item 1. 4 is supported in an upright state on the fuselage 10, and the rotational driving force from the mounted engine 11 is transmitted to the bevel gear 47,
A transmission shaft 49 that transmits transmission to the eccentric shaft 41 by a meshing mechanism of 50, and a transmission shaft 4 that
9, the eccentric shaft 41 is assembled and held at a mid-height position of the transmission shaft 49 by the housing case 51 of the bevel gears 47, 50, and the eccentric shaft The upper support body 43 for the distribution rod is supported horizontally forward from the fuselage 10 by a bearing 44 in an idle state in which the rotational driving force is not transmitted to the swing cylinder end 42 of the body 10. A cross-shaped universal joint 28 that is attached and fixed to the sled plate 24 for supporting the branch arrow and performs only a swinging action as if bent around its own pivot point 1, and a swinging yoke 34 of the universal joint 28. , a lower support 3 for the sorting rod that is fitted and fixed in a non-rotatable manner.
2, a distribution device made of synthetic resin or other flexible hollow pipe material and installed between the opposing upper and lower support bodies 43 and 32 with an upwardly inclined rear intersecting a horizontal plane; When installing the distribution rod 33 between the supports 32 and 43, the distribution rod 33 is provided with a rod 33.
3 into an overall arc shape or dogleg shape that can give a constant amplitude W, and one end of the curved distribution rod 33 is removably inserted into the upper support 43, while also distributing the rod 33. By fitting and fixing the other end of the rod 33 to the lower support 32 in a non-rotatable manner, when the eccentric shaft 41 is driven to rotate, the distribution rod 33 does not operate automatically, and the overall spindle-shaped turning trajectory is maintained. A rush harvester's weeding device is characterized in that it is set to perform a revolving action while drawing.