JPH0671374B2 - All culm input combine harvester pre-mowing treatment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention comprises a first mowing device for cutting the root side of a planted grain culm, and a second mowing device for cutting a portion above it. The present invention relates to a pre-cutting processing device for an all-cule throw-in type combine, which is configured to supply and convey only the cutting-and-culm tip side part cut by the second cutting device to the rear threshing device.

[Conventional technology]

As the conventional pre-mowing treatment device, as disclosed in, for example, Japanese Patent Laid-Open No. 63-7711, the first mowing device is provided at the rear position of the auger and the second mowing device is provided.
There has been a structure in which the mowing device is arranged on the front side of the auger.

[Problems to be Solved by the Invention]

The above-mentioned structure feeds the tip side part including the graining part to the threshing device, improves the threshing processing capacity by not putting the stem culm of the stock origin type in the threshing device, and makes it possible to leave uncut stock It is designed so that it can be cut as close to the ground as possible. However, for example, when carrying out the mowing work while rotating the machine when the machine is put into the field, as shown in FIG. 5, the mowing area by the first mowing device and the mowing area by the second mowing device are separated from each other. It will cause misalignment. Then, in the area (S) on the inner side of the turning as shown by the diagonal lines in FIG. 5, the tip side of the planted grain culm is guided to the lateral outside by the weeding tool or the side wall at the front end. Since the second cutting device acts on a portion of the grain stalk near the ground, there is a problem that the grain stalk that has not been mowed on the tip side is cut down.

An object of the present invention is to focus on such a point, and even when performing cutting work while turning the machine body, it is possible to prevent a harmful effect such as cutting down the uncut grain culm from the plant side and causing a loss of grain. The point is to provide a pre-mowing treatment device for all culm-type combine harvesters.

[Means for Solving the Problems]

The characteristic configuration of the present invention is that in the pre-mowing treatment device for all culm throw-in type combine of the introduction structure, a raising device for raising the planted culm to the standing posture is provided, and the first reaping device is provided at the front lower portion. And a holding and conveying device for holding and conveying the grain stalks cut by the first reaping device in a standing posture toward the rear, and the portion acting on the slaughtered grain culms conveyed by this holding and conveying device is provided with The second reaping device is provided, and its action and effect are as follows.

[Action]

In other words, after cutting the plant side of the grain culm that has been raised in the standing posture by the raising device with the first mowing device provided at the position on the front side, while holding and carrying it, the second mowing device at the rear side has the tip side. To disconnect. Then, the cut tip side portion is supplied and conveyed to the threshing device. Moreover, even if the second cutting device enters the uncut area of the first cutting device on the inside of the turning during the turning and cutting of the machine body, the second cutting device is located at a height near the tip of the grain stem. Therefore, it does not act on the uncut culm that is laterally laterally guided.

〔The invention's effect〕

Therefore, according to the present invention, even when performing the mowing work while turning the aircraft, it is possible to prevent the loss of the grain without cutting down the planted grain culm which is not trimmed from the tip side from the plant side. You can do it.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an all culm input type combine according to the present invention. This combine harvester cuts the planted grain culm by the pre-crop treatment device (2) at the front of the machine while traveling by a pair of left and right crawler traveling devices (1), (1), and rears the tips of the harvested grain culms. It is configured to be put into an axial flow type threshing device (3).

The reaping pretreatment device (2) has a five-row cutting structure, and is configured to be movable up and down around a horizontal axis (P) by a hydraulic cylinder (4). The grain culms cut by the cutting unit (5) as described below are gathered by the auger (6) toward the center in the cutting width direction, and then three rotary drums (8a) each having a scraping member attached to the outer circumference thereof. ), (8b) and (8c) are arranged side by side and are thrown into the threshing device (3) via the scraping and conveying section (9).

As shown in FIG. 3, the end of the piston rod (10) of the hydraulic cylinder (4) is pivotally connected to the support bracket (12) of the rotary support shaft (11) of the frontmost rotary drum (8a). I am doing it.

The cutting unit (5) includes a clipper-type first cutting device (13) that cuts the root side of the planted culm, and a clipper-type second cutting device (14) that cuts a portion above it. It is configured to supply the cut grain culm tip side part cut by the second cutting device (14) to the auger (6). More specifically, a plurality of weeding tools (15) for guiding the planted culms to the front end (15)
Is provided, and five raising devices (16) for raising the fallen grain culms in the standing posture are provided behind these weeding tools (15), and are raised by these raising devices (16). The first cutting device (13) is provided at the lower part on the front side that acts on the culm.
Have been deployed. And, the three holding and conveying devices (17) for holding and conveying the grain culms reaped by the first reaping device (13) in a standing posture toward the rear are provided with the holding and conveying device (17). It consists of a holding chain (18) that holds and conveys the stem part of the cut grain culm, and a locking transport mechanism (19) that locks and transports the tip of the cutting grain culm. The second reaping device (14) is provided on the acting portion.
Have been deployed.

In other words, while the grain-bearing culm in an upright posture is transported by the holding and transporting device (17), first the cutting side is cut off, and then the tip side part is cut and supplied to the auger (6). The locking and conveying mechanism (19) is tilted rearward and downward so that the tip end side portion can be efficiently supplied to the auger (6).

Next, the drive transmission system of the reaper (5) will be described.

As shown in FIG. 2, a transmission mechanism (not shown) on the fuselage side
Power is transmitted to the driven pulley (22) on the upper side through the relay shaft (20) and the transmission belt (21), and the rotary shaft (23) to which the driven pulley (22) is attached is attached to the other side. The bevel gear mechanism (2) that extends to the rotation shaft (23) and supplies power to the drive sprockets (24) of the respective raising devices (16).
5) is provided. In addition, the middle three bevel gear mechanisms (2
Transmission shaft (26) with hexagonal cross section from 5) downward
And the drive sprocket (27) of the locking and transporting mechanism (19) is slidably mounted on the transmission shaft (26) in the axial direction so that the drive sprocket (27) can be locked and locked according to the stroke of the grain stem. The upper and lower positions of the transfer mechanism (19) can be changed and adjusted.

A bevel gear mechanism (28) is provided at the lower end of each transmission shaft (26) to transmit power to the drive sprocket (29) of the holding chain (18) via the rotation shaft (30). There is. Further, the drive shaft (32) of the first and second reaping devices (13) and (14) is reciprocally rotated by a rod (31) pushed and pulled by a crank mechanism (not shown) on the machine side. There is. As shown in FIG. 4, the drive shaft (32) is formed to have a hexagonal cross-sectional shape, and is for driving the cutting blade (13a) of the first reaping device (13) to reciprocally slide at a predetermined pitch. The swing arm portion (33) is fixedly extended from the lower end portion thereof toward the front side. Drive shaft (3
The upper part of 2) has a cutting blade (14) of the second cutting device (14).
The rocking arm part (34) for reciprocating laterally moving a) at a predetermined pitch is extended toward the rear side of the machine body, and the base end part (35) of this rocking arm part (34) is It is fitted on the shaft (32) so that it can be slidably adjusted and fixed in the axial direction. In this way, the cutting height of the tip portion can be changed and adjusted. Further, since the cutting blades (13a) and (14a) move in opposite directions to each other, vibration is small.

As described above, by disposing the first mowing device (13) on the front side of the machine body with respect to the second mowing device (14), the uncut grain culm is cut down from the stock side during mowing while the machine body is turning. It is possible to solve the adverse effect, and it is a carrying carrier (17).
This allows the harvested grain culms to be transported without disturbing the posture and allows efficient cutting of the tips.

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]

1 to 4 show an embodiment of a pre-mowing treatment apparatus for all culm throw type combine according to the present invention, FIG. 1 is an overall side view of the combine, FIG. 2 is a system diagram showing a drive transmission system, FIG. 3 is a sectional view showing a support connecting portion of the hydraulic cylinder, and FIG. 4 is a side view of the first and second reaping device mounting portions. FIG. 5 is a plan view showing the operation of the conventional example. (3) …… Threshing device, (13) …… First mowing device, (14) …… Second mowing device, (16) …… Raising device, (17) …… Clamping and conveying device.

Claims (1)

[Claims] 1. A second cutting device (14) comprising a first cutting device (13) for cutting a root side of a planted grain culm and a second cutting device (14) for cutting a portion above it. ) Is a cutting pretreatment device for an all-culm throw-in type combine that is configured to feed and convey the tip side portion of the harvested grain culm cut by (3) to raise the planted grain culm to the standing posture. A raising device (16) is provided, and the first harvesting device (1
3) is provided, and a holding and conveying device (17) for holding and conveying the grain stalks mowed by the first reaping device (13) in a standing posture toward the rear is provided, and is conveyed by the holding and conveying device (17). An all-culm input combine harvester pre-treatment device in which the second harvesting device (14) is arranged at a portion that acts on the harvested grain culm.