JPS583458Y2 - Grain culm conveyor in combine harvester - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a husk conveying device for a combine harvester that can smoothly and reliably convey the husk to the threshing section in an orderly manner with the stock always aligned.

With conventional shell culm conveying equipment, the standing shell culms planted in the field were combed and harvested at the same time by the shell culm combing device. The stems of the husk culms that have been harvested by the husks become uneven, and this causes disturbances in the conveyance process of the husk culms to the threshing section, causing the culms to fall off, or the conveyance becoming clogged, making it impossible to convey them smoothly and reliably. This is not just a matter of failure, but also a drawback in that various processing problems such as unhandled grains, load fluctuations, and clogging occurred in the threshing section, making it impossible to carry out smooth processing operations.

The present invention was devised to eliminate the above-mentioned drawbacks, and the stock base of the upright culm is placed at a position that divides the left and right dividers arranged in front of the cutting blade into three at approximately equal intervals. The starting end of the left and right culm root conveying devices, which have a raking part for raking, and which merge the bulge sides of the cut culm at the rear central part of the raking part, face above the cutting blade. Then, one rear end of the shell culm stock source conveying device faces the threshing section, and the combing end of the shell culm combing device, which has a starting end in front of the cutting blade, and the tip side of the shell culm are threshed. The starting end of the shell culm tip conveying device that transports the shell culms toward the culm point is placed above the confluence point, and the stock end side transfers the tip side of the shell culms that have been conveyed and converged to the confluence point from the shell culm combing device to the shell culm. By configuring it so that it can be transferred to the tip conveying device, it can be conveyed in an orderly manner with the root parts aligned and in the same posture, eliminating disturbances in conveyance during conveyance, and preventing culms from falling off, conveyance clogging, and abnormal loads. The purpose of the present invention is to provide a husk conveying device for a combine harvester that can perform highly efficient processing work with a light load by preventing various processing troubles such as unhandled grains, load fluctuations, and clogging in the threshing section. .

The structure of the present invention will be described with reference to an embodiment shown in the drawings. Reference numeral 1 denotes a cutting blade attached to the lower front of the combine harvester, and dividers 2 are provided at the front of both left and right ends of the cutting blade 1.
2 are arranged.

Reference numerals 3 and 3 denote left and right culm crowning devices that set the culm width between the opposing dividers 2 and 2; It is installed obliquely from the cutting ground position toward the rear and upper side of the machine, and sprockets that engage with splines are internally supported at both upper and lower ends, and an endless chain is suspended between these sprockets. The ridges of the culm are arranged at equal intervals in the direction of rotation.
- is attached so as to be able to rise and fall freely, and engages with the erect erect culms A, A, .

Reference numerals 5 and 5 denote left and right shell culm stock transfer devices, and the shell culm stock transfer devices 5 and 5 include scraping wheels 6 and 6 that rotate in opposite directions to the outside, and the scraping wheels 6. .
is set at a position immediately above the cutting blade 1 at the Mikasa dividing position between the left and right dividers 2, 2.

Further, the left and right culm stock transport devices 5, 5 are formed so that the culm cut by the cutting blade 1 joins and converges at the rear central part of the raking parts a, a. The rear end of the shell culm stock transfer chain 7 of one of the shell culm stock transfer devices 5 is made to face the starting end of the threshing foot chain 8 of the threshing section B mounted on the machine body.

On the other hand, the culm crowning devices 3, 3 having a low front and a high rear
As shown in Fig. 2, the starting end is positioned in front of the cutting blade 1, and the raising claw 4 stands up near the starting end when descending the slope.
Erect piloere culms A, A... are planted in the field via
- The ridge crowning action starts before cutting with the cutting blade 1, and even after the culm root part is cut through the cutting blade 1 while being held between the culm root conveying devices 5 and 7. The ridge is crowned and continues to function.

In addition, the end of the ridge capping of the culm capping devices 3, 3, that is, the position where the raising claw 4, which has been standing up to perform the ridge capping action, falls down and ends the ridge capping action is as follows: Culm stock source conveyor device 5,
The culm capping action is completed at the position where the stem part of the cut culm A is conveyed and concentrated at the confluence point, and the tip side is placed in the culm capping device. It is now freed from 3,3.

Reference numeral 9 denotes a shell culm tip conveying device arranged above and in parallel with the shell culm stock source conveying device 7. It faces above the confluence of the culm root conveying devices 5 and 7, and the tip side of the culm A released from the culm crowning devices 3 and 3 is continued to the culm tip conveying device 9. It looks like this.

Reference numeral 10 indicates a feeding claw of the culm tip conveying device 9, reference numeral 11 indicates a tip guide, and reference numeral 12 indicates an auxiliary divider provided at the center of the left and right dividers 2.2.

Next, the operation of the present invention configured in a diagonal manner will be explained.

Now, the cutting blade 1, the culm crowning devices 3, 3, and the culm stock source conveying devices 5, 5 are driven to plant the vertical culms A, A, etc. group in the field. When plunged, the erect piloere culm A,
A... The group is divided by the left and right dividers 2, 2, and the culm crowning device 3 is divided by the auxiliary divider 12.
, 3 into the culm ridge path C formed between them, and reach the front of the cutting blade 1 without being subjected to the culm cresting action by the culm capping claws 4, 4.

Then, the culm, which is undergoing the ridge crowning action, is moved by the rake ring 6,
6 and a shell culm stock conveying machine 7, 7, the shell culm stock conveying device 5, 7 successively pinches and collects and clamps it into small units, and immediately after the collection and clamping is performed, the cutting blade It is subjected to the reaping action by 1.

Then, the cut culms A, A, etc. are still subjected to the ridge crowning action by the culm capping device 3.3, and are then moved from the left and right scraping parts a, a to the dividers 2, 2. The culm is conveyed toward the confluence point in the rear central part, and at the same time as it is focused at this confluence point, the culm is capped in a substantially straight line, and the culm capping device 3,
The ridge crowning effect of step 3 ends.

The tips of the culms A, A, etc. released from the culm capping devices 3, 3 in this way are immediately transferred to the culm tip conveying device 9, and thereafter. The husk tip and husk portion are held between the husk tip conveying device 9 and the husk culm root conveying cheno 7, respectively, and are conveyed and supplied to the threshing section B, where they are threshed.

By the way, when cutting and transporting such culms, there are two or three groups of erect culms A, A... to be planted in the field.
Even if the grass is introduced in rows or in the full width of the left and right dividers 2, 2, the erect culms A, A... groups are divided into three at approximately equal intervals between the dividers 2, 2. Scratched part a in position
, a are formed and are harvested while being held in small units by the culm root conveying devices 5, 5, so that they are always harvested in the same posture and the reaping height can be made uniform. You can arrange them in an orderly manner.

In addition, in the process of being transported and concentrated after being harvested, the culms A, A... are combed into an upright shape by the combing action of the culm capping devices 3, However, since the stem side of the culm is held by the culm stem conveying devices 5, 5, it will not be pulled out, and the culm will be conveyed until it reaches the confluence point with the stem part aligned. be done.

Moreover, the shell culms converged at the confluence are combed up into a substantially straight vertical shape, and as soon as the combing action is completed, they are immediately transferred to the shell culm tip conveying device 9. The posture of the culm is always good, and therefore, the dropping of the culm during the transportation process to the threshing section B, transportation clogging, and occurrence of abnormal loads are prevented.In addition, in the threshing section B, various problems such as unhandled items, load fluctuations, and clogging are prevented. Processing troubles are prevented and highly efficient processing work can be performed with a light load.

In short, the present invention has a scraping part that scrapes the base of the erect culm at a position that divides the left and right dividers arranged in front of the cutting blade into three at approximately equal intervals. The starting ends of the left and right culm stock conveying devices for merging the stock bases of the removed culms at the rear central portion of the scraping section are arranged to face above the cutting blade, and one of the culm stock conveying devices A combing end of a husk culm crowning device having a rear end facing the threshing section and a starting end in front of the cutting blade, and a husk culm tip conveying device that transports the husk culm tip side toward the threshing section. The starting end of the culm faces above the confluence point, and the stock side is configured to be able to transfer the tip side of the culm that has been conveyed and focused to the confluence point from the culm capping device to the culm tip conveying device. In the process of conveying the culm from reaping to the merging point of the culm stock transport device where the combing action ends, the culm end side is held between the culm stock transport device having a raking part and transported to the merging point. The tip side is not transported by a separately installed shell culm tip conveying device, but can be transported while being combed up to the confluence point using a shell culm crowning device. The structure of the transport device can be simplified.

However, at this time, since the stem part of the culm is clamped by the culm stem conveying device, there is no upward pulling by the culm capping device, and the left and right sides of the culm are scraped as they are. Since the stock is conveyed from the raking section to the merging point at the rear center, there is no misalignment of the stocks, and the stock is transported almost in the same direction until it reaches the merging point at the rear center of the raking section.
It can be transported in the same position.

In addition, the tip side of the culm, whose stock part is conveyed and converged from both the left and right sides to the central confluence point, has finished the combing action by the culm crowning device whose combing end is above the confluence point. However, since the starting end is immediately conveyed in the upright position to the culm tip conveying device located above the merging point, there is no disturbance of the culm from both the left and right sides during merging, and furthermore, Since the front of the stock and the tip are transported from the confluence point to the threshing section, there is no chance of the culm falling off or clogging the transport, and smooth and reliable transport can be carried out in an orderly manner. Coupled with the fact that there is no disturbance in the posture of the husk during the conveyance route leading to the threshing section, various processing problems such as unhandled grains, load fluctuations, and clogging are prevented in the threshing section, resulting in light load and highly efficient processing work. This has extremely useful practical effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the shell culm conveying device in a combine harvester according to the present invention, and FIG. 1 is a side view of the main parts;
Figure 2 is a front view of the main parts, Figure 3 is the lll-II of Figure 1.
4 is a sectional view taken along line I and FIG. 4 is a sectional view taken along line IV-IV in FIG. In the figure, 1 is a cutting blade, 2, 2 is a divider, 3, 3 is a culm ridge crowning device, 5, 5 is a culm stock origin conveying device, 9 is a culm tip conveying device, A is a culm, B C is the threshing part, C is the culm crown path, a is the raking part, and b is the confluence point.

Claims (1)

[Scope of utility model registration request] A scraping part for scraping the stock base of the upright culm is provided at a position that divides the left and right dividers arranged in front of the cutting blade into three at approximately equal intervals, and the stock base of the cut culm is provided. The starting ends of the left and right culm stock transfer devices, which join together at the rear central portion of the raking section, face above the cutting blade, and the rear end of one of the culm stock transfer devices is connected to the threshing section. At the same time, the combing end of the husk culm combing device having a starting end in front of the cutting blade and the starting end of the husk culm tip conveying device that conveys the husk culm tip side toward the threshing section are connected to the merging point. A shell culm in a combine harvester, characterized in that the tip side of the shell culm, which faces upward and whose stock side is conveyed and concentrated at a confluence point, can be transferred from a shell culm combing device to a shell culm tip conveying device. Conveyance device.