JPH0238598Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a waste culm processing device in a combine harvester.

[Conventional technology and its issues]

Conventionally, the waste culm that has been shredded in the direction of the culm body is either dropped into the field as it is and released, or it is moved to the side of the already harvested field using a chute member etc. so as not to interfere with the next harvesting operation. Measures are being taken. (For example, Japanese Unexamined Patent Publication No. 53-44343, Japanese Utility Model Application No. 52-126169) In this type of culm, there is a large difference in culm diameter between the root side and the tip side. There is a big difference in the amount of accumulation between the root side and the tip side, and when using a chute member, etc., the cut culms are deposited in a ridge shape, resulting in a difference in the decay time of the culms. In addition, it was a major obstacle to the subsequent work such as plowing.

The purpose of this invention is to bounce the cut culms on the root side in the direction of cutting other culms, mix the entire shredded culms well, leave the shredded culms in the field evenly, and allow them to rot. The aim is to eliminate time variations and improve the efficiency of post-processing work.

[Means to solve the problem]

The structure of the present invention, which solves the problems of the prior art, is to thresh the harvested grain culm, transport the threshed waste culm to the rear, and use a disc that is surrounded by a cutter cover and has a low-speed rotating blade. In a culm processing device for a combine harvester, the cutter cover constitutes the disk-type cutter mechanism, in which shredded culms are shredded in the direction of the culm by a type cutter mechanism and are discharged onto a field. A safety cover for guiding the shredded culm and for security is installed vertically on the rear side and at the lower end of one side corresponding to the tip side of the culm, and a safety cover for guiding the shredding culm and for security is installed, and a safety cover is installed on the bottom side of the culm of the cutter cover. The upper end edge of a springboard is pivotally supported on the lower end of the other side corresponding to the springboard, which also serves as safety and is provided with a downwardly inclined auxiliary springboard part with the lower end bent inward, and the outer upper part of the springboard is The present invention is characterized in that it is connected via a connecting arm to an eccentric position of a large-diameter gear provided at the shaft end of the low-speed rotating shaft constituting the disc-type cutter mechanism.

[Effect]

The shredded culms on the root side that have been shredded by the cutter mechanism are thrown off toward the tip side by the splash plate, and the shredded culms are left on the field in a uniformly mixed state. It will be done.

〔Example〕

To explain the details of the embodiment with reference to the drawings, A is the combine main body, B is the reaping device, C is the threshing device,
D is a traveling body, E is a cutter mechanism, and the reaped and threshed culms are held between the conveyance chain 1 and the conveyance rail 2 as shown in FIG. Shredded at.

As the cutter mechanism E used in the combine main body according to the present invention, a disk type cutter is generally used. The general mechanism is that a low-speed rotating shaft 4 and a high-speed rotating shaft 5 are mounted parallel to each other on the cutter cover 3, and the low-speed rotating shaft 4 is mounted on the cutter cover 3.
A plurality of circular blades 6 having a scraping action are provided at appropriate intervals.
A circular blade 7 that maintains an interlocking relationship with the blade 7 is provided.

Also, the rear side of the cutter cover 3, and
A safety cover 9, 8a for guiding and leaving the shredded culm and for security is installed vertically on one side corresponding to the tip side of the culm, and also corresponding to the root side of the culm of the cutter cover 3. At the lower end of the other side, the upper edge of the flip plate 8 which also serves as safety is pivotally supported, and the outer upper part of the bounce plate 8 is connected via a bendable connecting arm 10 to the lower end of the low speed cutter mechanism. It is connected to the eccentric position of the large diameter gear 11 provided at the end of the rotating shaft 4.

12 is a small diameter gear provided at the end of the high speed rotating shaft 5 and meshed with the large diameter gear 11;
Reference numeral 3 denotes a guide plate which is attached to the lower inner surface of the side plate constituting the cutter cover 3 on the side to which the upper end of the flip plate 8 is pivoted, and is equipped with an inclined surface with the tip facing inward and downward. The cutting culm adheres to and intervenes in the shaft joints of the cutter cover 3 and the spring plate 8, and the spring plate 8
This prevents the rotational movement of the shaft from being obstructed.

Further, as shown in FIG. 3, an auxiliary springboard part 8b bent inward and inclined downward is provided at the lower end of the springboard 8, either integrally or separately, to further improve the splashing of the shredded culms. In addition, when the spring plate 8 is in a vertical position, the shredded culm flowing down along the inner surface of the spring plate 8 is guided to the right side of the paper in the figure, so that even a small amount of the shredded culm remains uncut. This is to prevent it from being left in close proximity to the grain culm.

Further, although not particularly shown, the safety cover 8a located at a position opposite to the above-mentioned spring board 8 is also
By making it rotatable with a similar configuration, it is also possible to make the shredded culm on the tip side fly away to the root side. In this case, when the cutting width is wider than the width of the cutter mechanism such as a large combine harvester, the shredded culms are scattered over the entire cutting width, eliminating areas where there are no shredded culms in the field, and removing the culms. It is also possible to speed up the decomposition time so that there is no hindrance to the subsequent plowing work. Furthermore, in this case, if the left and right springboards act simultaneously, the thrown cut culms will collide in the middle, making it impossible to achieve the goal of uniform dispersion. Shift the connecting position of the connecting arm and large diameter gear by 180° so that In the figure, 14 is a culm collecting member.

[Effect of idea]

As described above, according to the configuration of the present invention, the following effects can be obtained.

(a) The cutter mechanism intermittently flips the shredded culms falling from the root side toward the tip side as shown by the arrow in Figure 3, reducing the amount of shredded culms that fall and accumulate in the field. It is possible to rationally make the thickness of the culm uniform, thereby increasing the uniform rotting effect of the culm, and further improving the efficiency of the subsequent tillage work.

(b) Since the spring plate is connected to the eccentric position of the large-diameter gear provided on the low-speed rotary blade shaft via the connecting arm, the spring plate is given a rotational springing motion at an appropriate speed, and the shredded culm is shredded. Not only can mixing be carried out efficiently, but the above-mentioned splash plate is provided with a downwardly inclined auxiliary splash plate part whose lower end is bent inward, so that the shredded culm can be splashed even more reliably. When the spring plate is in a vertical position, the shredded culm flowing down along the inner surface of the spring plate is guided inward, so that the shredded culm is left even slightly close to the unharvested grain culm. Reasonably preventable.

[Brief explanation of drawings]

FIG. 1 is a side view of a main body of a combine harvester having a device of the present invention, FIG. 2 is a side view with some of the main parts omitted, and FIG. 3 is a partially cutaway rear view of the same. A... Combine main body, B... Reaping device, C...
... Threshing device, D... Traveling body, E... Cutter mechanism, 1... Conveyor control, 2... Conveyance rail, 3... Cutter cover, 4... Low speed rotating shaft, 5... High speed rotating shaft, 6 , 7... circular blade, 8... spring board, 8a...
...Safety cover, 8b...Auxiliary spring board section, 9...Safety cover, 10...Connection arm, 11...Large diameter gear, 12...Small diameter gear.

Claims (1)

[Scope of claim for utility model registration] Threshing the harvested grain culm, transporting the threshed culm to the rear, and surrounding it with a cutter cover, and
In a waste culm processing device for a combine harvester in which shredded waste culm is shredded in the direction of the culm using a disc type cutter mechanism having a low and high speed rotating blade and is discharged onto the field, the above disc type cutter is used. A safety cover for guiding the shredding culm and for security is vertically installed on the rear side of the cutter cover that constitutes the mechanism and at the lower end of one side corresponding to the tip side of the culm. At the lower end of the other side corresponding to the root side of the culm of the tar cover, the upper end edge of a springboard is provided with a downwardly inclined auxiliary springboard part for safety and whose lower end is bent inward, and the upper edge of the springboard is pivotally supported; A culm shedding process in a combine harvester, characterized in that the outer upper part of the flip plate is connected via a connecting arm to an eccentric position of a large-diameter gear provided at the shaft end of the low-speed rotating shaft that constitutes the disc-type cutter mechanism. Device.