JPH0561889B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention provides a handling chamber with a horizontal shaft in the center of the front of the handling chamber, which is equipped with a handling cylinder that rotates around a horizontal axis and a concave 14 located below the handling cylinder. In addition to opening a narrower grain culm input port, a rear plate facing the grain culm input port was provided at the rear of the handling chamber, and the supplied grain culm was scraped downward and introduced as the handling barrel rotated. Afterwards, the grain culm was moved upward along the rear plate, branched and guided to the left and right by a guide provided on the upper wall of the handling room, passed over the concave again, and then formed on the left and right sides of the rear plate. This invention relates to a threshing device for a whole-culm input type combine harvester, which is configured to send waste straw from an outlet to a rear sorting section via a beater for scraping out waste straw.

[Conventional technology]

For example, as shown in Japanese Utility Model Application No. 61-7937, the conventional threshing device is equipped with a rear part installed in the rear center of the handling room as described above, in order to mainly thresh rice which cannot be said to have very good threshing properties. Threshing performance is improved by arranging a plate and passing the grain culm supplied into the handling room over the concave twice.

[Problem that the invention seeks to solve]

However, when threshing wheat, soybeans, buckwheat, etc., which have good threshing properties, using the above-mentioned threshing device takes time because the grain culm goes around the handling barrel one and a half times. Not only was the efficiency reduced, but the generation of cut straw increased, leading to a decline in later sorting efficiency.

The present invention has been made with attention to the above-mentioned circumstances, and its purpose is to use a single whole-culm input type combine harvester to thresh rice with poor shedding properties, wheat with good shedding properties, etc. To provide a threshing device for a whole-culm input type combine harvester that can improve threshing performance and sorting performance by simply replacing parts.

[Means for solving problems]

The characteristic structure of the present invention is that the rear plate is configured to be detachable, and the central beater for removing straw disposed between the beaters on both sides is configured to be detachable. The function and effect are as follows.

[Effect]

If the central beater between the two straw scraping beaters is removed and a rear plate is installed at the rear of the handling chamber, a so-called semi-axial flow type will be created, and the grain culm supplied into the handling chamber will flow through the handling barrel. The grain is threshed by turning once and a half, making it suitable for threshing grains such as rice that do not have very good threshing properties.If the rear plate is removed and a central beater is installed between the beaters on both sides, the so-called Since it is a direct current type, the grain culm supplied into the handling chamber is passed half a revolution around the handling barrel, and the wheat,
Crops with good threshing properties such as soybeans and buckwheat can be threshed with less generation of cut straw.

〔Effect of the invention〕

Therefore, by selectively attaching the rear plate and the central beater depending on the type of grain culm to be threshed, threshing can be carried out under suitable conditions depending on the threshing performance of the grain culm, and the threshing performance can be improved. I am now able to improve my In particular, when processing wheat, soybeans, buckwheat, etc., it also suppresses the generation of cut straw and improves sorting performance.

〔Example〕

Embodiments of the present invention will be described based on the drawings.
Figure 4 shows the entire culm input type combine harvester.
The front part of the vehicle body 2, which is configured to be movable by a crawler traveling device 1, includes a reel 3 for raking the planted grain culm backward, a cutting blade 4 for cutting the stock base of the raked grain culm, and a reaping culm. A reaping section 7 is provided, which includes an auger 5 that sends the grain culm to the rear, a conveyor 8 that lifts and conveys the grain culm from the auger 5, and the like. Also mounted on the vehicle body 2 are a threshing device 9 for threshing grain culms supplied by the conveyor 6 of the reaping section 7, a swing sorting section 22, a tank 11 for storing grains, and the like.

The threshing device 9 has a handling chamber 15 that includes a handling barrel 13 that rotates around a horizontal axis 12 and a concave 14 located below the handling chamber 15. A grain culm input port 8 having a width smaller than the shaft is formed, and a U-shaped rear plate 16 having a flat cross section is arranged at a position facing the grain culm input port 8 at the rear of the handling chamber 15. There is. Further, straw discharge ports 17 and 1 are provided on both left and right sides of the rear plate 16.
7 are formed respectively, and a beater 1 for scraping out straw is provided at the rear position of the straw discharge port 17.
8 and 18 are respectively disposed so as to be freely rotatable.

The grain culm supplied into the handling chamber 15 from the grain culm input port 8 is threshed on the concave 14, and the processed material leaks through the concave 14, and is shaken by the rocking grain pan 20. While being transported to the starting end side of the dynamic sorting section 22, the threshing device 9
The waste straw from the left and right beaters 18, 1
8 and straw walker 23 . . . Further, on the upper surface of the handling chamber 15, as shown in FIGS. 1 and 2, a substantially V-shaped arrangement is provided so as to gradually expand from the rear side toward the front grain culm input port 8 side. A pair of left and right plate-shaped processed material guides 21, 21 are provided at the front and rear, respectively, and the grain culms that have been handled as described above are dispersedly guided to the left and right by the guides 21, 21, and the The left and right parts of the handling cylinder 13 perform the threshing process once again, and then the left and right straw discharge outlets 1
7, 17 to the left and right straw walkers 23...

In the threshing device 9 configured in this manner, the beaters 18, 18 on both sides are arranged to remove straw from the outer periphery of a rectangular rotating drum 25 horizontally suspended at the rear position of the handling chamber 15, as shown in FIG. Scraping member 1
A central beater 19 is constructed by fixing two beaters 8a in parallel, and a removing straw scraping member 19a is removably attached to the rotating drum 25 between the two beaters 18,18. The straw scraping member 19a can be attached by drilling bolt holes in the rotating drum 25 in advance and tightening the bolts.

Further, the rear plate 16 is detachably attached to the upper part of the rear end of the concave 14, and the central beater 19 and the rear plate 16 are attached selectively. Attach the rear plate 16 as shown, and when processing crops with good shedding properties such as wheat and soybeans, use the central beater 19 as shown in Figure 4.
It is used to discharge waste straw over the entire width of the handling chamber 15.

The swinging sorting section 22 is provided with a chaff sheave 31 and a grain sheave 32 that swing integrally, a sorting fan 27, etc.
After being sorted by 2, the grains are transferred to the first collection section 2.
8, the second grains are collected in the second grain collection section 29, and then the grains are stored in the tank 11, and the second grains are transported by the lifting device 30, and then stored in the handling room 15. It is configured to be reduced within the upper part.

[Another example]

In the embodiment described above, the central beater 19 is constructed by fixing the waste straw scraping member 19a to the outer peripheral surface of the rotating drum 25, and only the waste straw scraping member 19a is removed from the rotating drum 25 when the rear plate 16 is attached. However, the beaters 18, 18 on both sides and the center beater 19 are each constituted by a separate drum with a scraping member, and are removably fitted onto a drive shaft mounted at the rear of the handling chamber 15. It's okay.

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing device of the whole culm input type combine harvester according to the present invention, and FIG. 1 is a cross-sectional plan view showing the threshing device portion in the form of threshing rice, and FIG. 2 shows the flow of the grain culm. Fig. 3 is an exploded front view of the beater and central beater, Fig. 4 is a cross-sectional plan view showing the threshing device in the form of threshing wheat, soybeans, etc., and Fig. 5 is the whole of the whole culm input type combine harvester. FIG. 8...Grain culm input port, 13...Handling barrel, 14...Concave, 15...Handling chamber, 16...Rear plate, 18...
... Beater, 19... Central beater, 21... Guide, 22... Sorting section.

Claims (1)

[Claims] 1 A grain culm input port 8 having a width smaller than the width of the handling chamber 15 is opened in the center of the front of the handling chamber 15, which is equipped with a handling barrel 13 that rotates around a horizontal axis and a concave 14 located below it, and A rear plate 16 facing the grain culm input port 8 is disposed at the rear of the grain handling cylinder 1.
3, the supplied grain culm is scraped downward and introduced, and then rotated upward along the rear plate 16, and the grain culm is branched and guided to the left and right by the guide 21 provided on the upper wall of the handling chamber 15. After passing over the concave 14 again, the beater 1 for scraping out the waste straw is passed through the waste straw outlets 17, 17 formed on both left and right sides of the rear plate 16.
This is a threshing device for a whole culm input type combine harvester configured to send the grain to the rear sorting section 22 via a rear plate 8, in which the rear plate 16 is configured to be detachable and is disposed between the beaters 18 on both sides. The central beater 19 for scraping out waste straw is configured to be detachable,
This is a threshing device for a full culm input type combine harvester, in which the rear plate 16 and the central beater 19 can be attached selectively.