JPH0824473B2 - Subdivision structure of strawberries harvester - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a weeding structure of a strawberries harvester that raises and harvests strawberries that have been planted while weeding them. A fixed weeding implement is provided in the vicinity of the ground in front of the stem and culm erecting device that has been installed, and a weeding harvester is provided in which the weeding rotator is arranged in a rearward tilted posture from the rear of this fixed weeding implement toward the rear upper direction. Regarding the weed structure.

[Conventional technology]

Examples of the vegetative structure of strawberries harvesters include Japanese Patent Laid-Open No.
As disclosed in Japanese Unexamined Patent Publication No. 67122, there is a type in which a small-diameter rod material curved in an arc shape in the longitudinal direction is swung and rotated to vibrate the left and right strawberries to divide the entwined strawberries.

[Problems to be Solved by the Invention]

Strawberry has a characteristic that it contains a large amount of water and is long and slender (about 1.5 m for long ones), and it is soft, and the characteristic is that the strawberries that have such properties are intertwined in the front-back, left-right, and left-right directions.

In contrast to the above characteristics, the above-mentioned conventional weeding principle based on the weeding structure rotates the weeding body and vibrates the left and right strawberries on its contact surface, but the way of giving the vibration is slow. It was a rotating succulent body, and it applied the force to push the strawberries laterally by using the amplitude of the succulent rotator. With this pushing force, the entwined strawberries are separated into left and right parts.In the action part of the weeding body, the left and right strawberries that are intertwined are pushed up and the crossed parts that are entwined are pushed up, and Occurs, which makes it difficult or impossible to separate them, and the frequent breakage, damage, and tearing of strawberries lowers the commercial value of strawberries, or the straws become entangled with each other and the threads become entangled. There is a problem that the grass body is damaged and the cutting work becomes impossible in the same condition as tangled, and it is necessary to improve it because it is difficult to sufficiently cope with the characteristics of straw grass mentioned above.

In order to smoothly separate the entwined strawberries corresponding to the characteristics of the strawberries mentioned above, unravel the entanglements of the strawberries with the rotator to separate the strawberries on the cut side into the uncut strawberries in the planted state. On the other hand, it was found as a result of a test study that it must be separated in a state of slipping downward in the culm direction.

By embodying this principle, it is an object of the present invention to provide a new weeding device that solves the above-mentioned problems and can sufficiently cope with the characteristics of strawberries.

[Means for solving the problem]

In order to achieve the above object, the characteristic configuration of the present invention is that a fixed weeding tool is provided in the vicinity of the front ground of the stem culm raising device obliquely installed in a rearward tilting posture, and from the rear of the fixed weeding tool to the rear upper side. In a weeding structure of a hay grass harvester in which a rotator is arranged in a rearwardly tilted posture, the rotator in the rearwardly tilted posture is looser than the stalk-culm raising device. It should be rotatably around, and should be arranged at a position close to each uncut planting straw grass side of each of the plurality of stem stalk introduction paths with respect to the stalk culm raising device, and the rotation direction of this rotator should be cut. The vegetative rotator is set so as to be slidably contacted with respect to the planted straw grass from below to above, and the vegetative rotator is different in two directions in which the distances from the rotation axis are mutually orthogonal, and Located in opposite directions at almost equal distances from the axis of rotation Of the outer edge, the outer edge at a position far from the axis of rotation is composed of a rigid member formed into a smooth curved surface along the rotation locus circle of this rotator, and the rotation locus circle is A straight line is formed in the direction of the axis of rotation so as to have a substantially constant diameter from the front end portion to the rear end portion of the weeding rotor, and the weeding rotor is further weeded by the weeding rotor. It is configured to rotate around the rotation axis at a high speed that gives a slight vibration to the straw grass and unravels the entanglement of the straw grass, and behind the fixed weeding tool on the lower side of the front end side of this turf rotating body. In addition, a scraper is provided along the outer edge of the rotation locus of the grass rotator.

[Action]

The operation by adopting the above configuration is as follows.

From the rotating shaft core, among the outer edges of the rotator, which are different in two directions in which the distance from the rotating shaft core is orthogonal to each other, and which are located in opposite directions with a substantially equal distance from the rotating shaft core. The outer edge of the part with a long distance is composed of a rigid member formed into a smooth curved surface along the rotation locus circle of this rotator, and this rotator is rotated at high speed around the axis of rotation. By being configured to be rotationally driven, the above-mentioned two vegetative action curved surfaces can intermittently contact the strawberries at high speed and give small vibrations to the strawberries.

Since this small knuckle vibration is a minute vibration that effectively acts on the entanglement of straw grass, the front, rear, left and right entanglement of the strawberry grass is unraveled by the small knuckle vibration, and the weeding action curved surface unravels the entanglement. While pushing the straw grass from the base of the plant toward the tip of the stem, the straw grass is entangled and slips in the direction of the culm, so that the entangled front, back, left and right of the straw can be smoothly and smoothly disentangled. You can

Moreover, since the outer edge of the weeding action curved surface that gives vibration by hitting the straw grass is formed as a smooth curved surface along the circle of the locus of rotation of this weeding body, the above-mentioned slight vibration occurs. Therefore, even if the rotator of the weeds is rotated at a high speed, there is little risk of damaging the strawberries, and the rotation drive can be performed at a high speed as described above.

And, the vibrating action caused by the difference in the distance from the rotary shaft core is such that the rigid member constituting the sward rotor has a rotation locus having a substantially constant diameter from the front end to the rear end. By being formed in a straight line in the core direction, it is carried out over almost the entire length of the range of placement of the weed rotator, and the function of slipping and separating the strawberries while loosening with this small vibration is effectively exhibited, The range can be set over a wide range over almost the entire range of the rotator installation.

Further, the rotator of the weeds is arranged at a position close to each uncut planting vegetation side of each of the plurality of stalk introduction routes with respect to the stem culm raising device, and the rotation direction thereof is set to the planting hay to be cut. On the other hand, since the rotator of the grass is set so as to be slidably contacted from the lower side to the upper side, in addition to the slight vibration, the acting force in the upward stretching direction is also added to the strawberry to be cut. By doing so, the planting strawberries that should be cut are acted to extend upward, and the strawberries that are intertwined in the front, back, left, and right are smoothly divided while gradually being raised upward from the plant base side without difficulty.

Furthermore, by providing a scraper behind the fixed weeding tool on the lower side of the front end side of the weeding rotator, weeds and waste straw grass immediately after being pushed apart by the fixed weeding tool, Since it is designed to be removed immediately when entangled with the start of weeding, the synergistic action with the placement relationship with the fixed weeding tool makes it possible to easily prevent the weeding and the ragweeds from being entangled with the rotator. It is possible to effectively prevent the weeds and waste straws from being wound around the rotator of the weeds, which can be carried out and easily rotate due to the rotation at a high speed, so that the weeding function by the high speed rotation can be maintained and exhibited.

〔The invention's effect〕

The effects of adopting the above configuration are as follows.

A structure that allows the straw grass to slip through in the direction of the culm while applying a slight vibration to the straw grass to loosen the entanglement of the straw grass, resulting in better weeding performance corresponding to the characteristics of the straw grass mentioned above, and breaking and damage of the straw grass. It has the effect of being able to harvest high quality strawberries with little tearing.

In addition, the vegetative function by giving the above-mentioned effective micro-vibration works in a wide range of the vegetative rotor, and a synergistic effect with the upward stretching action by rational setting of the rotational direction of the vegetative rotor. As a result, it is possible to realize a strawberry harvester that can perform work efficiently even under adverse conditions that target intensely entwined strawberries.

Moreover, the front end of the rotator is placed immediately after the fixed weeding tool, and on the lower side of the front end of the rotator, the entanglement of weeds and scraps by the scraper can be removed immediately. , It is possible to effectively prevent wrapping around the rotator of the grass, and to maintain good hay while making it possible for the rotator of the rush to rush into the dense straw grass.

〔Example〕

A riding type rush harvester will be described. As shown in FIG. 3 and FIG. 4, a pair of left and right weeding devices (1), (1) for untwisting the front, back, left and right of the straw grass, and a pair of left and right shed after the weeding is carried out. Stem culm raising device (2),
(2), a clipper-type cutting device (3) for cutting the root of the raised straw grass is arranged on the left side of the front part of the traveling body (4), and the upper portion of the cut straw grass is suspended and clamped. And a front-to-back sandwiching and conveying device (5) for conveying backward and obliquely upward of the machine body, and a conveying device (8) for forcibly conveying the root side of the sandwiched strawberries toward the side of the machine body. The air blower (6A) outlet (6a) is forcibly conveyed to the front of the blower (6A) blower outlet (6a) by the transfer device (8) against the root side of the straw grass. A wind-powered selection device (6) is provided for selecting upwardly blown dust straws by the wind released from the wind, and further a member for guiding the root side of the straw grass blown up by the winds onto the binding floor (10). Equipped with a pawl lifting / conveying device (12) and a binding floor (10)
An auxiliary selection device (13) for selecting the strawberries placed on the top and a bundling device (7) for bundling are arranged, and the cutting frame (3
3) is mounted to the traveling machine body (4) so as to vertically swing about the lateral axis (X) with respect to the traveling machine body (4), and a hydraulic cylinder is provided behind the binding device (7). (14) and the pantograph-type lifting link mechanism (19) move up and down, and at the rear fulcrum (Y), swing up and down together with the pantograph-type lifting link mechanism (19) (dump action)
The loading platform (15) is provided, and the receiving rod (37) as a side wall for receiving the accumulated straws at the rear end of the loading platform (15) is installed so as to be tilted backward, and is opposite to the raising device (2). An engine (16) and a driving unit (9) are provided on one lateral side, and these are mounted on a traveling machine body (4) equipped with left and right crawler traveling devices (11) and (11) to be a riding type two-row mowing grass It is a harvester.

Further, outside the front left side of the airframe, it extends from the front end of the weeding device (1) to the left lateral side of the front position of the crawler traveling device (11), leaving the uncut side strawberries outside the left side. A weeding rod (38) that slides and guides toward the user is arranged on the machine body.

 Next, the weeding device (1) will be described.

Diagonal from the rear part of the fixed weeding tool (20) provided at the front end of the mowing frame (33) at the front position of the raising device (2) to the upper part of the raising device (2) The weeding device (1) is configured by arranging a weeding rotor (21) that is driven to rotate about an axis.

As shown in FIGS. 2, 6, and 7, the rotator (21) has a distance (L′ 1, L ′) from the axis of rotation (Z).
2) are different in two directions orthogonal to each other, and of the outer edges located in opposite directions at substantially equal distances from the rotary shaft core (Z), the distance (L ′ from the rotary shaft core (Z). The outer edge of the distant portion of 1, L'2) is composed of a rigid member formed into a smooth curved surface along the rotation locus circle of this sprouting rotor (21).

Then, the rotator (21) is linearly formed in the direction of the axis of rotation so that the rotation locus circle has a substantially constant diameter from the front end to the rear end of the rotator (21). Yes,
Further, replace the rotator (21) with the rotator (2
It is configured to rotate around the rotation axis (Z) at a high speed such that a slight vibration is applied to the strawberries that are divided in 1) to loosen the entanglement of the strawberries.

More specifically, as shown in FIG. 1 and FIG. 2, the weeding rotor (21) has the widths (L1),
(L2) is composed of a synthetic resin linear cylinder rod body having different oval cross-sectional shapes, and is configured to be rotationally driven around the axial center (Z) at the center position thereof. That is, the rotation support shaft (22) is extended through the center part, and the lower end of the rotation support shaft (22) is supported by the bearing member (23) bolted to the front end of the mowing frame (33). The upper end is interlocked with the transmission shaft (25) through a universal joint (24).

A cylindrical member (28) having a perfect circular cross section is connected between the support members (26) and (27) fixed to the upper and lower portions of the rotary support shaft (22) in an axially inserted state, and Material (28)
The weed rotator (21) is externally fitted to the outer peripheral part of and is fixedly attached to both the support members (26) and (27). As shown in FIG. 5, the rotator (21) is counterclockwise in the direction of movement of the machine, that is, it is arranged from the bottom to the top with respect to the planting straw grass that is aligned and laid down on the left side in the direction of movement. It is configured to be rotationally driven so as to be in sliding contact with.

The rotator (21) for rotating the vegetation controls its rotation, for example, 750 RPM
The transmission system (not shown) is configured to be able to switch gears between high and low speeds of about 1380 RPM and about 1380 RPM, and can be used properly according to the difference in the degree of entanglement. By the way, the engine (16)
The number of rotations is 3,600 RPM, and the raising speed of the raising device (2) is set to about 1.48 M / sec. Further, the inclination angle (α) of the raising device (2) from the vertical posture is set to about 20 degrees, and the rising inclination angle (β) of the rotator (21) is set to about 20 degrees.
It is set to 52 degrees.

A scraper (29) is provided in proximity to the lower side of the outer peripheral portion of the weed rotator (21) on the front end side. The scraper (29) is made of an elastic material such as rubber, and as shown in FIG. 2, a pair of sandwiching members (31), which are bolted to a bracket (30) standing up from the mowing frame (33) and connected in series,
The scraper (29) is clamped and fixed by (31) to be supported.

The left and right sprouting rotors (21), (21) are positioned such that their upper ends are lower than the upper end of the raising device (2) and higher than the transport start end of the sandwich transport device (5). The weeding rotator (21), (21) is arranged in a rearward tilting posture that is looser than the raising device (2) and is rotatable around a rotation axis (Z) along the tilting posture after that. ), The uncut side overlaps with the raising device (2) located on the uncut side in the front-rear direction, and the cut side includes left and right sides with raised claws facing each other. Raising device (2),
It is arranged so as to be positioned at the center of the raising passage of (2).

In the state in which the uncut mowing grass is slidably guided by the weeding rod (38), the weeding rotator (21) is entwined from the root part of the weeding target entwined in front, back, left and right, and the outer diameters are orthogonal to each other. The vibrations caused by the dimensional difference between the widths (L1) and (L2) in the given direction are applied to the strawberries, and the straws are gradually lifted upwards and loosened and weeded. Moreover, such a vibrating action is performed from the starting end to the ending end of the weeding, and the entanglement can be effectively disentangled.

In addition, the scraper (29) effectively scrapes the weeds and waste straw grass that have begun to be wound around the outer periphery of the weed rotator (21) when the straw grass is wet, for example, to prevent the winding and to raise the rear surface. It guides toward the squeezing device (2) and acts so as to smoothly raise the weeds.

[Another embodiment]

[1] The rotator (21) may be made of metal instead of synthetic resin.

[2] As shown in FIG.
A pair of circular pipe members (36), (36) may be arranged in parallel and rotated about their contact points.
It may have an elliptical cross section as shown in the figure.
In short, the distance from the axis of rotation (Z) (L'1, L'2)
Of the outer edges which are different in two directions orthogonal to each other and which are located in opposite directions with a substantially equal distance from the rotating shaft core (Z), the distance (L′ 1,
It is sufficient that the outer edge of the distant L'2) is formed into a smooth curved surface along the circle of the locus of rotation of the rotator (21). It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a weeding structure of a straw harvester according to the present invention. Fig. 1 is a vertical side view of a weeding device, and Fig. 2 is a first drawing.
II-II sectional view of the figure, FIG. 3 is an overall side view of the strawberry harvester, FIG. 4 is an overall plan view of the strawberry harvester, FIG. FIG. 7 and FIG. 7 are sectional views of a weeding rotor of another embodiment. (2) …… Raising device, (3) …… Mowing device, (5)…
... nip transport device, (20) ... fixed weeding tool, (21) ... rotating weeding body, (29) ... scraper, (38) ... weeding rod,
(L'1, L'2) …… Distance from the axis of rotation, (X) ……
Horizontal axis, (Z) ... Rotary axis.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiko Sato 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd.Sakai Works (72) Takashi Arimoto 64, Ishizukita-machi, Sakai City, Osaka Prefecture Company Sakai Factory (72) Inventor Takayuki Tomioka 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd.Sakai Factory (56) Reference JP 61-21021 (JP, A) JP 64-67123 (JP JP, A) JP 64-67122 (JP, A) JP 63-116613 (JP, A) JP 63-187817 (JP, A) JP 64-37224 (JP, A) 56-111634 (JP, U) Actual Kaihei 1-41225 (JP, U) Actual public 55-12669 (JP, Y2)

Claims (1)

[Claims] 1. A fixed weeding tool (20) is provided near the front ground of a plurality of stem culm raising devices (2) obliquely installed in a rearward tilting posture, and from the back of this fixed weeding tool (20) to the rear. In a weeding structure of a hayfever harvester in which a weeding rotor (21) is arranged in a backward tilting posture toward the upper side, the weeding rotor (21) is provided from the stem-culm raising device (2). Also loosely tilted around the axis of rotation (Z) in a tilted and tilted posture, and at a position closer to each uncut planted vegetation side of the plurality of stem culm introduction paths to the stem culm raising device (2). The rotator (21) is arranged and the rotation direction of the rotator (21) is set so that the rotator (21) is slidably contacted with the planted strawberries to be mowed from below to above. The rotating body (21) is different in two directions in which the distances (L′ 1, L′ 2) from the rotating shaft core (Z) are orthogonal to each other,
In addition, of the outer edges located in opposite directions at substantially equal distances from the rotary shaft core (Z), the rotary shaft core (Z).
The outer edge of the portion at a distance (L′ 1, L′ 2) from is composed of a rigid member formed into a smooth curved surface along the circle of the locus of rotation of the grass rotor (21), and The rotation locus circle is linearly formed in the direction of the axis of rotation so that the diameter of the rotator (21) is substantially constant from the front end to the rear end of the rotator (21). , This rotator (2
The front end of the rotator (21) is configured to rotate around the rotary shaft core (Z) at a speed as high as to give a slight vibration to the strawberry to be weeded in 1) and loosen the entanglement of the turf. Behind the fixed weeding tool (20) on the lower side of the side, there is provided a scraper (29) along the outer edge of the rotation locus of the weeding rotator (21), which is a vegetative harvester vegetation structure.