JP2806463B2 - Weeding section of reaper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weeding section mounted on a harvesting and harvesting machine such as a combine or a binder, and more particularly, to a cutting section arranged in a cutting section for separating a cut culm from a non-cut side. The present invention relates to a weeding section of a reaper, in which a rod-shaped rotating weeding body having a peripheral surface whose rotational radius differs in the circumferential direction is provided as a grass means so as to be able to rotate freely and to be tilted rearward.

[0002]

2. Description of the Related Art Conventionally, as a rotary type weeding means, for example, as disclosed in Japanese Patent Application Laid-Open No. 3-65117, a rotary weeding means has been known. In this case, a driving device for the rotating weed body is formed so that the rotating weed body is continuously rotated in a constant direction at all times, and the grain culm is provided by applying vibration to the cereal culm accompanying the rotation of the peripheral surface having a different radius of rotation depending on the circumferential direction. The structure is such that the tangs are loosened and the culm is vegetated by the scooping action of the rotating vegetative body accompanying the progress of the fuselage.

[0003]

However, when this rotary weeding means is used as a combine or binder for harvesting rice and wheat, the following problems are expected to occur. In other words, in the case of rush, the stalks are relatively hard and hard to wrap around, so there is no bearing even if they are continuously rotated in a certain direction, but when harvesting a laid down flexible rice, they are always continuous in a certain direction. Grain stalks and weeds are easy to wind around the rotating revolving herbaceous body, causing a decline in the weeding function due to plant wrapping. In addition, it takes time to remove the wrapped plants, and the herbicidal function and maintenance and management of the revolving herbaceous body There was room for improvement. An object of the present invention is to make it possible to effectively suppress plant wrapping around a rotating algae body.

[0004]

A reaper according to the present invention is a weeding and harvesting machine arranged in a reaping section for separating a cultivated cereal culm from an uncut culm, and has a rotating radius different in a circumferential direction. In a reaping and harvesting machine provided with a rod-shaped rotating grass body having a surface so as to be drivable and in a rearwardly inclined position, the rotation center axis of the rotating grass member is set along the rearwardly inclined position. The herbaceous body is provided with a peripheral surface formed so as to have different rotational radii in two directions orthogonal to each other, and is formed substantially plane-symmetrical with a virtual plane including the rotation center axis as a boundary, and The driving device is characterized in that the rotating weed body is reciprocated and rotated within an angle range within one rotation.

[0005]

[Function] In other words, the rotating weeding body has a rotational radius that varies in the circumferential direction and is formed in a shape that is symmetrical in the front-rear direction with its rotational center axis as the center. Because it is configured to move, once forward, for example, when the front side is operating to push the cereal stem laterally outward, the rear side will push the cereal stem in the opposite direction, At the time of the backward movement, the movement of pushing back the grain stalk laterally outward and the movement pushing the grain stalk in the opposite direction act on the grain stalk in each case. Therefore, since the weeding action is performed twice in one reciprocation, the tangled culm is loosened quickly. Therefore, by appropriately setting the reciprocating rotation angle range of the rotating weed body, while maintaining the good weeding function of the rotating weed body, the rotating weed body reciprocatingly rotates within one rotation to the rotating weed body. Can be effectively suppressed, and a decrease in weeding function and interruption of work due to plant wrapping can be sufficiently prevented.

[0006]

As a result, it is possible to provide a weeding section of a reaper that is more excellent in the weeding function and maintenance of the rotating weeding body.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a cutting unit 2 is provided at a front portion of a traveling vehicle body equipped with a crawler type traveling device 1 so as to be vertically movable by swinging around a support shaft 4 by a hydraulic cylinder 3. The section 2 is provided with an apparatus 5 for raising planted grain stalks, a cutting blade 6, and a transporting device 8 for sending the harvested stalks to the threshing apparatus 7, and supplies the grain stalks from the cutting section 2 to the threshing apparatus 7 while transporting them backward. And a bagging hopper 11 for collecting the first thing (grain) selected by threshing by the threshing device 7.
And the boarding operation unit 12 is arranged in front of the hopper 11 to constitute a self-removing combine. Reaper 2
The rod-shaped rotating weeding body 13 for separating the cut culm from the uncut culm is positioned in front of the planted grain culm raising device 5,
In addition, it is provided so that it can be driven to rotate freely in a rearward upward inclined posture, a fixed weeding tool 14 is provided in front of the lower end of the rotating weed body 13, and the vibrations accompanying the rotation of the rotating weed body 13 loosen the entanglement of the grain culm, In this way, the stalks are raised by the scooping action of the rotating weed body 13 accompanying the above, and weeding is performed.

As shown in FIG. 2 and FIG.
Reference numeral 3 denotes a cylindrical peripheral surface having a shape in which the radius of rotation such as an ellipse or an ellipse is different depending on the circumferential direction, and which is symmetrical with respect to the axis of rotation along the tilting posture of the rotating weed body 13. 13a, and a lower thin conical portion 13b connected to the lower part thereof is formed in the rotating weed body 13, and is continuously and continuously rotated in a constant direction in the transmission unit from the planting cereal stem raising device 5 to the rotating weed body 13. A small-diameter disk 16 is attached to the drive-side rotary shaft 15, and the upper support shaft 17
Arm 18 is attached to the small disk 16 and the arm 18 are linked by a link 19 to reduce the distance between the rotation center of the drive-side rotary shaft 15 and the first fulcrum 19a of the link 19, and to rotate the upper support shaft 17. The distance between the center and the second fulcrum 19b of the link 19 is increased, and the upper support shaft 17, that is, the rotating weed body 13 moves 90 degrees with the continuous rotation of the drive-side rotary shaft 15 in a fixed direction.
It is configured so that it reciprocates in an angle range of not more than one degree and within one rotation, and it is possible to impart sufficient vibration to loosen entanglement to the cereal stem by rotation of the peripheral surface 13a having a different radius of rotation depending on the circumferential direction. Plant wrapping around the grass 13 can be effectively suppressed.

[Other Embodiments] A driving means for reciprocating the rotating weeding body 13 in an angle range within one rotation can be appropriately selected from known power conversion mechanisms and the like, and these means are collectively referred to as driving devices 15 to 19. I do. Further, the angle range may be appropriately set according to the cross-sectional shape of the rotating weed body 13 and the like. A small hole for blowing air may be formed on the peripheral surface of the rotating weed body 13 to reduce the contact resistance with the cereal stem. The present invention can be applied to various types of combine harvesters and other reapers and harvesters, and the target of harvesting and the specific configuration of the reaper can be selected as appropriate.

[0010] In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a partially cutaway side view of a rotating plant.

FIG. 3 is a view taken in the direction of arrows AA in FIG. 2;

[Explanation of symbols]

 2 Cutting unit 13 Rotating plant body 13a Peripheral surface 15-19 Drive unit

Claims (1)

(57) [Claims] 1. A weeding means arranged on a cutting section (2) for separating a cut culm from a non-cut side culm, in the form of a rod-shaped rotation having a circumferential surface (13a) having a different turning radius in a circumferential direction. In a harvesting and harvesting machine provided with a weeding body (13) so as to be freely drivable and tilted upward, a rotation of the rotating weeding body (13) is performed.
Set the rotation center axis to be in the state of the above-mentioned upwardly inclined position
And the rotating weeds (13) are moved in two directions orthogonal to each other.
Peripheral surface (13a) formed so as to have different turning radii at
And at a boundary with a virtual plane including the rotation center axis.
And the rotating algae (1)
A weeding section of a reaper, wherein the driving device (15 to 19) of (3) is configured such that the rotating weed body (13) reciprocates and rotates within an angle range within one rotation.