JPH0810258Y2 - Combine stalk scraping device - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a combine stem stalk scraping device for cutting a plurality of lines of stem stalks.

[Problems to be Solved by Prior Art and Invention] Generally, in a combine for cutting a plurality of stalks at the same time, a pair of star wheels that mesh with each other to scrape two stalks, and a scraping guide A stalk-and-stalk scraping device configured by arranging single star wheels for scraping a single-stalk culm between them in a horizontal direction is provided, and a plurality of stalks scraped by the stalk-and-stalk scraping device. After the culms have been mowed by the cutting blade, they are merged and transferred to the threshing section.
By the way, in such a combine, if the stem culm is left uncut, a large grain loss occurs, and it is necessary to prevent this as much as possible. Therefore, it is proposed to reduce the uncut residue by widening the interval of the divider for weeding the strip at the end of the already-cutted land, but even if the divider interval is simply widened, the scrapable width of the star wheel is Since it is constant, there is a problem that the stem culm is not properly scraped and left uncut, or even if it is scratched, the roots cannot be neatly arranged and left unhandled in threshing.

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention was devised with the object of providing a combine stem culm scraping device capable of eliminating these drawbacks. , A pair of star wheels that mesh with each other to scrape two stalks and a single star wheel that scrapes one stalk from the scraping guide are arranged side by side in the left-right direction. In a combine comprising a stem-and-cule scraping device, the star wheels except for the star wheel closest to the cut end of the star wheels are set to have substantially the same diameter, while the star wheel closest to the cut end of the star wheel is set. Is formed to have a diameter larger than that of the star wheel set to have substantially the same diameter, and the maximum possible scraping width of the star wheel closest to the end of the cut ground is set.

According to the present invention, the culm can be surely scraped even if the distance between the dividers for weeding the strips on the side of the already cut land is widened.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes a combine traveling machine, and the traveling machine body 1 includes a pretreatment unit 2 for cutting stem culms, a threshing unit 3 for threshing stalks, a post-treatment for binding stalks and the like. Part 4, driving control part 5, crawler type running part 6 and the like. Further, in the pretreatment part 2, a divider 7 for weeding stalks to the number of cutting lines, a raising body for causing stalks. 8. Cutting blade 9 for cutting the roots of the raised stems, scraping device 10 located above the cutting blades 9 for scraping the stems, and joining the stems scraped by the scraping device 10. Left and right transport center 11,
12, 13 and a handling depth chain 14 for conveying the combined stems to the threshing section 3 are provided, but the basic configurations of these are all the same as before.

A plurality of the dividers 7 are arranged side by side at the front end portion of the pretreatment unit 2, but the distance between the divider 7 at the right end and the divider 7 adjacent to the divider 7 for weeding the line on the edge of the already-cutted land is: It is set wider than other divider intervals to reduce uncut residue.

Reference numerals 15 and 16 are star wheels constituting the scraping device 10, and one star wheel 15 is in a one-to-one pair so as to mesh with each other and scrape two stalks of stems.
The other star wheel 16 operates by itself so as to scrape one stalk of stalks between itself and a scraping guide (not shown). In order to scrape the strip at the end on the cutting site, the star wheels 15 are arranged side by side on the right end side in the left-right direction and are formed to have a diameter D larger than the diameter d of the other star wheels 15. That is,
The scrapable width of the star wheel 16 at the end of the cut ground is widened to correspond to the widened divider interval.

Further, the star wheel 16 on the side of the already cut ground is arranged in a set back shape so that the front end coincides with the front end of the other star wheel 15 and rotates so that the peripheral speed coincides with the peripheral speed of the other star wheel 15. It is becoming vulnerable. In other words, by matching the scraping conditions with those of the other star wheels 15, the stem culms of each line are scraped uniformly.

Further, 17 is a take-in belt, and the take-in belt 17 is
Suspended between the drive pulleys 15b, 16b provided at the upper ends of the wheel shafts 15a, 16a of the star wheels 15, 16 and a driven pulley 18 provided in front of the drive pulleys 15b, 16b, together with the star wheels 15, 16. The drive pulley 16 is mounted on the star wheel 16 on the side of the ground that has already been mowed, although it rotates and scrapes.
The diameter D ₁ of b is set to be larger than the diameter d ₁ of the drive pulley 15b provided on the other star wheel 15. That is,
As described above, since the rotation speed of the wheel shaft 16a is slowed down so that the peripheral speeds of the large-diameter star wheel 16 and other star wheels 16 match, it is possible to increase the diameter of the drive pulley 16b of the star wheel 16. The scraping belt 17 on the side of the ground that has already been mowed is operated at the same peripheral speed as the other scraping belts 17.

By the way, the stalks scraped by the scraping device 10 are merged and transported by the left, right, and middle transport chains 11, 12, 13 as described above, but the right transport chain 12 constitutes the transfer start side half. Consisting of a front transport chain 12a and a rear transport chain 12b forming a transfer end side half portion, and the rear transport chain 12b is
It is arranged so as to be bent forward with respect to the front transport chain 12a. That is, by bending the post-conveyance chain 12b to the front side, the front-rear length of the pre-treatment section 2 is shortened, and the post-conveyance chains 12b, which are bent, join the conveyance stems of the left and middle conveyance chains 11 and 13. By doing so, the lengths of the left and middle transport chains 11, 13 can be shortened.

In the embodiment of the present invention configured as described above, the stalks of the end strips on the cut ground are scraped by the star wheel 16 via the dividers 7 which are set wide. Since the wheel 16 is formed to have a larger diameter than the other star wheels 15 and has a wider sweepable width,
Even if the culm is put into the entire width of the provisional divider, it will be scraped securely.

As described above, in the present invention, a plurality of stalks are scraped by the star wheels 15 and 16 arranged side by side, but the star wheel 16 on the cut edge of the ground is more than the other star wheels 15. Since it is formed to have a large diameter and has a wide scrapable width, reliable scraping can be performed even if the divider width at the end of the already-cutted ground is wide. Therefore, it is possible to set the divider width at the end of the already-cutted land to be wide so as to eliminate uncut areas as much as possible. It is possible to significantly reduce the grain loss due to the leftover scraps.

In the embodiment, the peripheral speed and the tip position of the star wheel 16 at the end of the cut ground and the other star wheel 15 are matched, and the scraping belt 17 and the other scraping belt at the end of the cut ground are provided. Since the peripheral speed is the same as that of 17, it is possible to scrape the stem culms of each line under the same scraping condition, and it is possible to eliminate problems such as unscratched parts caused by uneven scraping. .

[Effects] In summary, since the present invention is configured as described above, the star wheels on the most end of the cut end can be scraped while the stem culms are scraped by the star wheels arranged side by side in the left-right direction. The wheel is formed to have a larger diameter than the other star wheels, and the width that can be swept is increased. Therefore, even if the divider width on the edge of the already cut ground is set wide to eliminate uncut residue, the stem culm that enters between the dividers can be scraped orderly, resulting in uncut residue and uncut residue. Grain loss can be significantly reduced.

[Brief description of drawings]

The drawings show an embodiment of a combine stem culm scraping device according to the present invention. FIG. 1 is a side view of the combine, FIG. 2 is a side view of a pretreatment unit, and FIG. It is a top view of an insert device. In the figure, 1 is a traveling body, 2 is a pre-processing unit, 7 is a divider, and 1
5 and 16 are star wheels.

Claims (1)

[Scope of utility model registration request] 1. A pair of one-to-one star wheels that mesh with each other to scrape two stalks and a single star wheel that scrapes one stalk from a scraping guide are arranged side by side in the left-right direction. In a combine comprising a stem-and-cule scraping device configured as described above, the star wheels except for the star wheel closest to the end of the cut ground among the star wheels are set to have substantially the same diameter, while the end of the cut end of the cut most is set. The star culm of the combine is characterized in that the star wheel on the side is formed to have a diameter larger than that of the star wheel set to have substantially the same diameter, and the width of the star wheel that is closest to the cut end is set to be wide. Scraping device.