JPS603715Y2 - Harvester grain culm weeding device - Google Patents

Description

[Detailed description of the invention] The present invention uses a self-propelled harvester to raise the culm planted in the field, remove the tangles from the tip of the culm, split the weeds, and transport the culm through the culm lifting mechanism to the reaping conveyance unit. This relates to a culm splitting device for feeding, and more specifically, a plurality of tines of an endless chain are arranged in front of a culm pulling mechanism located in front of the reaping conveyance section to move the weeds upward from below along the forward direction of the combine harvester. This invention relates to a culm weeding device which is provided with a movable weeding culm mechanism and which divides the weeds into the reaped culms that enter the pulling mechanism while pulling up the culms, and the non-reaped husks that do not enter the pulling mechanism. be.

In this way, in front of the culm lifting mechanism located in front of the reaping conveyance section, there is provided a weeding chain mechanism in which the plurality of tines of the endless chain move upward from below along the forward direction of the combine. The method of separating the grass into the reaped husk culm that enters the pulling mechanism while pulling up the culm and the non-reaped husk culm that does not enter the pulling mechanism is disclosed in Japanese Utility Model Application No. 51-161326 as a prior art.
However, this prior art does not consider how the moving speed of the tines in the weeding cheno mechanism should be set in relation to the moving speed of the tines in the culm lifting mechanism. As a result, during weeding using the weed cutting mechanism, culm breakage and panicle breakage occurred due to drooping of the tip of the culm.

In the present invention, by configuring the moving speed of the tines in the weeding chino mechanism to be faster than the moving speed of the pulling tines in the pulling mechanism, the speed difference between the two is used to raise and cut the grass. This aims to reduce losses such as culm breakage and panicle breakage in the weeding process, as well as improve the durability of the weed cutting mechanism.

Next, an example of the present invention will be explained with reference to a drawing of an embodiment of a combine harvester. In the figure, 1 indicates a combine machine body having running rollers 2, and a threshing section 4 equipped with a foot chain 3 is installed on the upper surface of the machine body 1. A shell culm pretreatment section 7 is provided in front of the frame 5 and 6 through frames 5 and 6 that protrude from the top and bottom of the body 1.

This pre-processing section 7 includes a plurality of (four in this embodiment) culm lifting mechanisms 8 installed between the front ends of both the frames 5 and 6 with their upper parts inclined rearward, and a reaping mechanism 8 installed on the lower frame 6. It consists of a mechanism 9, a stock head conveying mechanism 10 located above it, and two upper and lower rows of ear tip conveying mechanisms if and 12, and between the rear end of these and the foot chain 3, there is a stock head of the cut culm. A vertical transport mechanism 15 and two rows of upper and lower rows of ear transport mechanisms 16 and 17 are installed to sandwich and feed the parts to the foot chain 3.

The plurality of lifting mechanisms 8 are arranged in pairs, and a plurality of lifting tines 19 are provided in an endless chain installed in the case in the τ direction forming the culm passages 18, 18 between them, so that the lifting tines 19 can be raised and lowered freely. 19 is arranged to move upward from below within the shell culm passage 18.18 in a direction perpendicular to the traveling direction of the combine, and the lifting tine 19 of each pulling mechanism 8 is formed between a pair of lifting mechanisms. culm passage 18
．． It is configured to stand up when moving 18,
At the front lower part of the pulling mechanisms 8, 8 located on the left and right sides of the combine, and at the intermediate front lower part of the adjacent pulling mechanisms 8, 8 between the two culm passages 18, 18, there is a section attached to the lower frame 6. Grass bodies 20, 20.20 are provided respectively.

21.21.21 shows a weeding chain mechanism provided between the pulling mechanism 8 at the rear position of each of the weeding bodies 20.20.20, and each of the weeding chain mechanisms 12 has a case 22 with a box-shaped cross section. , upper and lower sprockets 23.2 in the case 22
The case 22 is constructed of an endless chain 25 that is wound between the upper part of the lifting mechanism 8 such that the chain 25 is perpendicular to the tines 19 of the lifting mechanism 8, that is, parallel to the direction of movement of the combine harvester. The upper part is attached to a tubular body 28 mounted between an arm 27 and a chino case 26 protruding from the upper frame 5 at the front so that the lower end of the chino 25 extends to the rear surface of the grass division body 20, and each case The chino 25 in the chino 22 is connected to the shaft 29 inserted into the tubular body 28 by transmitting power from a transmission shaft 30 in the upper frame 5 via a pair of bevel gears 31 and a chino 32 in the chino case 26, as indicated by arrow A in the figure. As shown, the endless chain 25 is rotated upward from the bottom, and is provided with a large number of tines 33 at appropriate intervals. is configured to do so.

Each tine 3 in each of the weeding chino mechanisms 21
3 is configured to be faster than the moving speed of each lifting tine 19 in the lifting mechanism 8.

In this configuration, as the combine harvester advances, the culms to be planted in the field first enter the culm passages 18, 18 in the pulling mechanism 8 by the cutting bodies 20, 20, 20, and
The movable tines 3 in each weed cutting mechanism 21 are divided into the uncut culms that do not enter the culm passages 18 and 1B.
While being pulled up and down by the reaping mechanism 21 and the pulling mechanism 8, the reaped husk culm is pulled up by the weed cutting mechanism 21 and the pulling mechanism 8, while the tangles of the tips of the reaped husk culm and the non-reaped husk culm are removed as they are being pulled up and down by the reaping mechanism 3. 9, it is sent to the stock head conveyance mechanism 10 and the ear tip conveyance mechanisms 11 and 12.

Since each weed cutting mechanism 21 is located in front of the pulling mechanism 8, the part of the culm that is being pulled up by the weed cutting mechanism 21 and the pulling mechanism 8 is close to the root of the plant. The portions near the tips of the ears are held in contact with the tines 19 at 8 and the tines 33 of the weed cutting mechanism 21, respectively.

In this case, in addition to the tip of the shell culm being heavy due to the grain, the lifting distance of the tip when raising the shell culm is greater than the lifting distance of the stock base, so the weeding chain mechanism 21
If the movement speed of the tines 33 is the same as or slower than the movement of the tines 19 in the pulling mechanism 8, the lifting of the tip of the culm during pulling will be delayed, and the heavy tip will move forward. Because of the drooping, the squeezing action of the tines 33 of the weed cutting mechanism 21 on the tips of the husks becomes excessive, resulting in culm breakage and/or ear breakage, increasing grain loss.

On the other hand, in the present invention, the moving speed of the tines 33 in the weed cutting mechanism 21 is changed to the moving speed of the tines 19 in the pulling mechanism 8.
The tip of the culm being pulled can be advanced by the tines 33 of the weeding chain mechanism 21, which moves at a faster speed than the tines 19 of the pulling mechanism 8, and is heavy. The tines 33 of the weed cutting mechanism 21 can be prevented from hanging down in the forward direction of the tip part.
The squeezing action is not excessive, the tips of the shell culms can be easily separated, and culm breakage and/or panicle breakage can be significantly reduced.Moreover, the moving speed of the tines 33 of the weeding cutting mechanism 21 can be reduced. By doing this early, this Tine 3
Because the amount of culms that abut and connect to the 1st part of 3 is reduced,
The load applied to each tine 33 is reduced.

Therefore, according to the present invention, when the weeding mechanism located in front of the culm lifting mechanism is used to raise and weed the culm,
To significantly reduce the loss of grain due to culm breakage, ear breakage, etc., and to reduce the load on each tine of the weeding cheno mechanism, thereby not only improving the durability of the weeding cheno mechanism, but also reducing its weight. It has the effect of

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the front of the combine, Fig. 2 is a front view of the combine, Fig. 3 is an enlarged view of the weeding chino mechanism, and Fig. 4 is the same as Fig. 1. FIG. 4 is an enlarged cross-sectional view taken along IV-IV. 1... Combine harvester body, tail... Culm lifting mechanism, 19... lifting tine, 21...
Grass division Cheno mechanism, 26... Cheno, 33...
...Tine.

Claims (1)

[Scope of utility model registration request] A weed cutting cheno mechanism equipped with a cheno that rotates up and down parallel to the direction of movement of the harvester is provided at the front of the culm pulling device with hoisting tines provided on the front of the harvester, and the cheno in the weed cutting chino mechanism is , in a culm weeding device comprising tines that move upward from below with the front part of the harvester protruding, provided at appropriate intervals, the moving speed of each tine in the weeding cheno mechanism is determined by each pulling mechanism in the pulling mechanism. A harvester's culm weeding device that is faster than the moving speed of the tines.