JPH0121928B2 - - Google Patents

Description

[Detailed Description of the Invention] Conventional waste culm tying machines discharge straw bundles backwards, so the falling position of the straw bundles is unstable due to the influence of wind or the difference in specific gravity due to dryness and wetness of the waste straw. When cutting in the middle, the straw bundles fall onto the grain culms and become an obstacle to the next reaping process, and it takes time to remove them.

The present invention is aimed at improving the above-mentioned drawbacks, and includes supporting a binding device at the rear end of the straw discharge path of the threshing device, and connecting the collecting culm of the binding device to a downward knot. , a vertical door disposed at the rear thereof, and a partition guide facing the knot part from below at the front part thereof, and pivotably supports the partition guide below the knot part so as to be openable and closable. It is characterized in that the culm bundle is formed in the culm bundle release part.

The embodiment shown in the drawings will be explained below.1
1 is a threshing device mounted on the machine stand of a combine harvester, and in front thereof is equipped with a preprocessing device 2 consisting of a reaping device, a grain culm conveying device, and the like.

Reference numeral 3 denotes a desk-type cutter attached to the rear of the threshing device 1, and the waste culm discharged from the culm removal port of the threshing device 1 is removed by a straw removal chain 4 having opposing guide rails and a straw removal belt 5. It is conveyed onto the cutter 3.

Reference numeral 6 denotes a binding machine attached to the rear end of a pipe 8 having a transmission shaft 7 therein, which includes an inverted L-shaped transmission case 9, a holder 10 and a building 11 provided downward on the upper part thereof. Tokarinari Katsu Nodule Guide 1
It consists of a nodule part whose lower surface is covered with 2,
The middle part of an S-shaped needle 13 is fixed to the ear side end of a needle shaft 14 that passes through the lower end of the rear part of the transmission case 9 from side to side, and a constant pressure spring of a one-turn clutch is fixed inside the needle shaft 14. A door 16 is loosely fitted to the end of the needle shaft 14 on the stock side, and a chain-shaped release plate 15 is loosely fitted to the end of the needle shaft 14 on the stock side. The protrusion on the other side is engaged with a fan-shaped notch (90°) of a control plate fixed to the needle shaft 14.

The front end of the pipe 8 is fixed to a horizontally rotating cylindrical frame 17, and a transmission case 18 that holds the cylindrical frame 17 rotatably supports a vertical shaft 19. The upper end of the pipe 8 is connected via a bevel gear to a horizontal shaft 20 that drives the straw chain 4, etc., and to the transmission shaft 7, respectively. Adjustment plate 22 integrated with horizontal beam 21 installed above
It is attached by screws 23 and clasps 24 to allow horizontal movement adjustment.

Further, a sickle-shaped stopper 25 is provided on the ear side of the transmission case 9, and a lug 28a made of synthetic resin is provided in a chain case 27 that protrudes toward the base of the upper part of the transmission case 9. A chain 28 installed at loose intervals is stretched between a driving sprocket 29 and a driven sprocket 30.
The middle part of the lug 28a is bent downward by the idler wheels 31, 31 to form an inverted U-shape, and the lug 28a
... is erected by the driven sprocket 30 and its tip protrudes outside the chain case 27. In this state, the base slides into contact with the lower surface of the guide plate 31' and moves while standing up, and the culm is ejected to within the raking range of the packer 25. It scratches and then falls down.

32 is a U-shaped rod having one end fixed to the pipe 8 and a middle part bypassing the tip passage, and a string outlet ring 32a facing close to the waiting position of the tip of the needle 13 is fixed to the other end. It has been done.

Reference numeral 33 is a partition guide made of an elastic rod whose base part is loosely wrapped around the U-shaped rod 32 and then stopped, and whose tip part faces the base of the door 16, and between the needle shaft 14 and the U-shaped rod 32. It traverses the culm bundle release path 34 that is formed.

Reference numeral 35 denotes a shutter consisting of a plate whose base is pivotally supported by a support shaft 36, and when a toggle spring 37 attached to the base is above the support shaft 36, it blocks the culm discharge path 38. , press down and rotate the shutter 35 to release the toggle spring 37.
When it moves downward beyond the support shaft 36, it maintains a downward rotating posture as shown by the chain line, and the culm discharge path 38 becomes open.

In the above-mentioned apparatus, the grain culm supplied from the pre-processing device to the threshing device 1 is discharged from the culm opening as waste culm, and is supplied onto the cutter 3 by the straw removal chain 4 and the straw removal belt 5.

When cutting the culm into pieces, open the switching plate 39 and introduce the culm into the cutter 3. When binding the culm, close the switching plate 39, make the shutter 35 substantially horizontal, and close the culm discharge path 38. When the bundling machine 6 is driven through the horizontal shaft 20, vertical shaft 19, transmission shaft 7, etc. in this state, the packer 25 and chain 28 are activated, and the culm is first moved at a speed higher than that of the straw removal chain 4 by the lug 28a. While the lug 28a moves in a pitch, the culm 25 reciprocates once and enters the rear surface of the lug 28a in the direction of movement, moving the culm scraped by the lug 28a to the nodule guide 12. and the door 16.

When the door 16 and constant pressure spring sense that a predetermined amount of culms have been collected, the one-turn clutch engages and the needle 13 below the partition guide 33 pulls out the binding string on the string ball holder 40. At the same time, the string is inserted into the knot along the side of the patch car 25 and wrapped around the converging culm.

At this time, since the discharge plate 15 is connected to the needle shaft 14 via a coiled spring, the bundle is tightened by pushing the collected culm from below.

Then, when the knot is completed, the needle 13 returns to the position shown in the figure, and then the needle 13 is moved further.
When the needle 13 is rotated by 180 degrees, the back surface of the needle 13 and the discharge plate 15, which had been in the upper position, rotate together and discharge the bundled culm bundle against the partition guide 33 into the downward culm bundle discharge path 34. do.

This culm bundle may be released as it is into the cut field directly below it, or it may be collected with a dropper 41 and then released.

In addition, if the culms are to be released as they are without being tied or shredded, if the shutter 35 is rotated downward, the culms will be collected on the dropper 41, and each time a predetermined amount is reached, the culms will be released into the field. released.

At this time, when the fixed position stop clutch of the binding machine 6 is released, the chain 28 moves its lug 2 as shown in FIG.
One of the lugs 8a is at the rear of the culm discharge path 38, and the next lug 28a is in a horizontal position facing the rear end circulation part of the straw removal chain 4, so that the entire amount is discharged smoothly. . In addition, the shutter 3
5 also serves as a safety device for the tying machine 6 because when the culm collecting portion 42 is clogged with culms due to tying trouble, the culm pressure causes the culms to rotate downward.

Since the present invention is constructed as described above, the culm bundles are discharged below the binding device, so that even if the wind is strong, even if the culm is wet, the culm bundle will be released in the same manner as the culm which is not windy and wet. It can be ejected accurately to a predetermined location on the ground.

In addition, when split harvesting is performed with a combine harvester, the culm bundle does not fall onto the uncut grain culm and push down the standing grain culm, unlike in the conventional rear discharge method, and the culm bundle can be removed. It doesn't require any unnecessary effort.

Furthermore, the partition guide does not need to resist the raking pressure of the packer like a door, and only supports the culm that is collected by the packer during culling, so it does not have to be strongly supported. This allows for smooth release of culm bundles. Moreover, since the straw bundles are discharged downward from the culm bundle discharge section, they are not affected by the wind unlike the conventional method of discharging them backwards, and the falling position can be stabilized. When the grain matures, the straw bundles will not fall onto the uncut grain culm and become an obstacle to the next harvesting process.

[Brief explanation of drawings]

The drawings show one embodiment of the invention,
Fig. 1 is a perspective view showing the state in which the binding machine is attached to the combine harvester, Fig. 2 is a side view of the same as above, Fig. 3 is a side view of the main part, Fig. 4 is a sectional view of the transmission part, Fig. 5 a, b
is a binding action diagram, and Fig. 6 is a transmission system diagram. 6... Binding machine, 12... Knot guide, 13...
Needle, 15... discharge plate, 33... partition guide, 34... culm bundle release path, 42... culm collection section.

Claims (1)

[Claims] 1. A tying device is supported at the rear end of the straw discharge path of the threshing device, and the collecting culm of the tying device is connected to a downward knot, a vertical door disposed at the rear of the tying device, and a vertical door disposed at the rear of the tying device. A culm binding device for a combine harvester, comprising the nodule portion and a partition guide facing from below, the partition guide below the nodule portion being pivotally supported so as to be openable and closable, and formed in a culm bundle discharge portion. .