JPH0332964B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, the grain stalks harvested by the reaping section at the front of the machine body are collected in the middle of the cutting stub by a lateral conveyance device, and then conveyed to the rear by a conveyor, so that the grain culms are harvested by the harvesting section at the front of the machine body. In addition to supplying grain to a handling room equipped with a handling cylinder that rotates around the axis, leakage from the handling room is shaken and sorted in a sorting section, and the sorted and collected grain is sent to a grain tank installed at the top of the threshing device. The present invention relates to a full-culm input type combine harvester configured to transport and collect materials, and send non-leakable materials in a handling room to a rear straw walker using a beater for rocking sorting.

Conventionally, as disclosed in Japanese Utility Model Application Publication No. 56-125025, the above-mentioned full-culm loading type combine harvester has conventionally been equipped with a threshing device inserted between the left and right crawler running devices, and mounted at the front of the machine. A reaping section having a width wider than the traveling device is provided, a conveyor having the same width as the threshing device is disposed between the reaping section and the threshing device, and a boarding and driving section is disposed at the upper part of the front end of the threshing device, It is common to have a grain tank located above the handling room, and a driving unit mounted behind it.

However, combine harvesters with the above configuration tend to be large overall and have a high center of gravity because the boarding and driving section and the driving section are located at a high position. It was something I couldn't do.

In addition, in the conventional system, the grain culm supplied to the handling room by a conveyor was threshed only during the time it passed between the handling barrel and the concave at its lower part, so it was difficult to harvest wheat with good shedding properties. However, there is a risk of unhandled rice being left unhandled when harvesting rice that has poor shedding properties, and improvements have been desired.

The present invention has been made in view of this situation, and an object of the present invention is to provide a full-culm input type combine harvester that has a compact machine body and has high threshing performance.

The characteristic structure of the present invention for achieving the above object is that in the whole culm input type combine harvester having the above structure,
The threshing device and the boarding operation section are mounted in parallel on the left and right, and a conveyor having a width smaller than that of the handling chamber is provided in front of the threshing device so as to supply the harvested grain culm to approximately the center of the left and right of the handling chamber. a reaping section provided in front of the conveyor, having a width larger than the width of the conveyor and spanning the boarding section and the handling room, and offset toward the boarding section with respect to the conveyor; and a conveying device is provided in the reaping section to collect the harvested grain culm toward the starting end side of the conveyor, and as the handling drum rotates, the grain culm supplied to the handling drum by the conveyor is transferred to the handling chamber. A V-shaped guide is provided in the upper part of the handling room to guide the handling room from the rear side to the left and right, and the tip of the guide is deviated toward the boarding operation section with respect to the left-right center of the conveyor. In addition, the constricted lower part of the grain tank is placed in the upper part of the front end of the straw walker sorting section at a position immediately behind the beater, and its functions and effects are as follows. It is as follows.

According to the above configuration, the boarding drive section and the threshing device are arranged side by side on the left and right, and the cutting section of the cutting cloth that spans the boarding drive section and the threshing device is provided at the front of the machine, so there is no wasted space from a two-dimensional perspective. In addition, the aircraft was able to have a compact structure that kept the height and center of gravity low.

Moreover, the narrow bottom of the grain tank is inserted into the upper front end of the straw walker sorting section immediately behind the beater, that is, into the dead space at the back of the beater, so it does not interfere with straw walker oscillating sorting. In addition, the grain tank can be placed lower than when it is installed above the handling room, and in combination with the above effects, a stable aircraft with a low body height and a low center of gravity can be achieved. It was possible to make the fuselage structure.

In addition, the grain culms supplied to the left and right middle of the handling room by the conveyor are passed under the handling drum for threshing, and then returned to the left and right of the front of the handling room through the upper part of the handling drum from the rear of the handling room. Since the threshing process is performed again through the lower left and right sides of the handling drum, the length of the threshing path through the handling drum is longer than that of the conventional system, and even rice with poor threshing performance can now be threshed reliably and effectively. .

Furthermore, if the width of the reaping section is made to span the threshing device and the boarding section, the conveyor will be deviated to the opposite side of the boarding section with respect to the reaping section, and the waste will be collected by the traversing conveyance device and supplied to the conveyor. If the harvested grain culm is sent to the handling room with different amounts on the left and right sides, and is subjected to threshing processing by the handling drum as it is, the processing load will be different on the left and right sides of the handling drum.
The boarding and driving section is overloaded and the other side is underloaded, making it impossible to fully demonstrate the threshing function.In this case, however, a V-shaped guide is used to disperse and guide the grain culms to the left and right at the front of the handling room. the tip of
By deviating from the left and right center of the conveyor toward the boarding operation section, that is, the side with a large amount of grain culm supplied, the amount of grain culm distributed on the left and right sides of this guide is made uniform, and the amount of grain culm distributed over the entire length of the handling barrel is made uniform. As a result, it became possible to demonstrate sufficient threshing performance.

In short, the present invention has been able to provide a full-culm input type combine harvester that can demonstrate high threshing performance while making the machine more compact and stable by rationally arranging each device.

Next, embodiments of the present invention will be described in detail based on illustrative drawings.

As shown in FIGS. 1 and 2, a threshing device 3 and a boarding operation section 4 are installed in parallel on the left and right on a body frame 2 equipped with a pair of left and right crawler-type traveling devices 1, and a field is planted. A reaping section 8 is equipped with various devices such as a reel 5 for raking grain culms, a reaping device 6 for reaping the raked grain culms, and an auger 7 as a conveying device for gathering the harvested grain culms toward the left and right center of the machine body. , a conveyor 9 for transporting the harvested grain culm to the threshing device 3 is provided at the front end of the machine so that it can be raised and lowered freely, and a grain tank 10 is mounted and arranged on the upper part of the threshing device 3, so that the entire culm is thrown in. A combine has been configured.

To explain in detail the arrangement of the reaping section 8 and the threshing device 3, as shown in FIGS. The handling room 15 in which the fuselage 14 is housed is arranged so that its left-right center P ₁ is offset from the left-right center P of the aircraft to the side opposite to the boarding and operating section 4, and the width of the handling room 15 is The conveyor 9, which is formed to be narrow in width, is arranged so that its left and right center coincides with the left and right center _P1 of the handling chamber 15.
That is, it is arranged so that the grain culms to be transported are supplied to the left and right center portions of the handling chamber 15.

Then, the reaping section 8 extending over substantially the entire width of the machine body is biased toward the boarding operation section 4 side with respect to the conveyor 9 and the handling room 15 so that its left-right center almost coincides with the left-right center P of the machine body. placed in a position where
Utilizing the space created by the offset arrangement of the handling chamber 15, the boarding and operating section 4 is compactly arranged on one side of the machine body in such a manner that it is housed within the width of the reaping section 8.

In configuring the handling chamber 15, in the left and right center portions of the handling chamber 15, the shape of the threshing material is approximately V in plan view.
The V-shaped tip of the guide 16 is connected to the handling cylinder 14.
The guide 16 is arranged so that it faces toward the upper side of rotation, and the longitudinal shape of the guide 16 follows the upper outer circumferential locus of the handling barrel 14 when viewed from the side, and the threshed material from the handling chamber 15 is transferred to the sorting section 17 at the rear. The beaters 18 for scraping are arranged near both lateral ends of the handling barrel 14 on both sides of the rear guide wall 19 formed at the left and right center of the handling chamber 15, so that the beaters 18 are supplied to the left and right center of the handling chamber 15. After the grain culm (thrested material) is threshed and transferred to the rear, it is lifted and transferred around the handling cylinder 14 by the rotational action of the handling cylinder 14 and cooperation with the rear guide wall 19, and is moved to the handling room by the guide 16. The grains are distributed and guided to the left and right of the front part 15, transferred to the rear while being threshed again, and supplied to the sorting section 17 from both lateral discharge sides of the handling chamber 15. In other words, the left and right length of the handling drum 14 is effectively utilized. The threshing process path around the handling cylinder 14 is lengthened to improve threshing performance.

When arranging the V-shaped guide 16, the V-shaped tip is placed on the boarding operation section 4 side with respect to the handling chamber 15 and the left-right center _P1 of the conveyor 9, that is,
A difference in the amount of grain culms collected on the left and right due to the offset arrangement of the auger 7 with respect to the left-right center P ₁ of the conveyor 9, which is offset by a distance l to the left-right center P side of the machine body,
In other words, by correcting the left-right deviation of the supply amount to the handling chamber 15 by the offset arrangement of the tip of the guide 16,
By guiding and supplying substantially the same amount of threshing material toward both lateral ends of the handler 5, the threshing load over the entire left and right length of the handling drum 14 is made uniform, and the threshing efficiency of the handling drum 14 as a whole is improved. It is configured.

Note that the width ratio of the conveyor 9 that conveys and supplies the harvested grain culms to the left and right center of the handling chamber 15 with respect to the handling chamber 15 can be changed as appropriate, and the specific amount of left and right deviation of the reaping section 8 with respect to the conveyor 9 can also be changed. Changes can be made as appropriate.

Also, the specific amount of left and right deviation l of the tip of the guide 16
can be changed as appropriate based on the horizontal displacement ratio of the reaping section 8 with respect to the conveyor 9.

The sorting section 17 includes a grain pan 21 that swings and transfers the fine processed materials leaked from the handling chamber 15 through the concave 20 to the rear, and a grain pan 21 that shakes and sorts the processed materials sent by the grain pan 21. The sorting sieve 22, the winnowing winnow 23 that sends the sorting air, and the straw that has been forcibly sent out by the beater 18 from the left and right of the rear of the handling room 15 are swung backwards and the grains and grains with branches are sorted out. It is equipped with a straw walker 24 that allows the grains to be collected in the first collecting section 25 provided at the lower part of the sorting section 17, and collects second items such as grains with branches in the second collecting section 26. It has been done. The grains in the No. 1 collection section 25 are transported horizontally and then transported to the grain tank 10 by the conveyor 27, and the second grains in the No. 2 collection section 26 are transported horizontally and then transferred to the front part of the handling room 15 by the conveyor 28. The system is such that the supply is returned from above.

The grain tank 10 is configured in a shape that narrows at the bottom, and a discharge unloader 29 is connected to the lowest part thereof, and this lowest part is connected to the top of the front end of the sorting section by the straw walker 24 at a position immediately behind the beater 18. In addition, the grain tank 10 is mounted on the threshing device 3 as low as possible.

[Brief explanation of drawings]

The drawings show an embodiment of the whole-culm input type combine harvester according to the present invention, in which Fig. 1 is an overall longitudinal sectional view, Fig. 2 is an overall plan view, and Fig. 3 is a schematic diagram showing the state of transfer of the threshed material in the handling room. FIG. 3... Threshing device, 4... Boarding operation section, 7... Conveying device, 8... Reaping section, 9... Conveyor, 10...
...Glen tank, 14...handling trunk, 15...handling room,
16... Guide, 17... Sorting section, 18... Beater, 24... Straw walker, P ₁ ... Left and right center of conveyor, Q... Center of horizontal axis of machine.

Claims (1)

[Claims] 1 Handling chamber 15 of threshing device 3 equipped with a handling barrel 14 that rotates grain culms harvested in the reaping section around the transverse axis Q of the machine body
The leakage material from the handling chamber 15 is shaken and sorted by the sorting section 17, and the sorted and collected grains are transported and collected to the grain tank provided on the upper part of the threshing device 3.
This is a full culm input type combine harvester configured so that non-leakage material is sent to a rear straw walker by a beater 18 and shaken for sorting, and the threshing device 3
and a boarding operation section 4 are mounted in parallel on the left and right, and a conveyor having a width smaller than that of the handling chamber 15 is installed in front of the threshing device 3 so as to supply the harvested grain culm to approximately the center of the left and right of the handling chamber 15. 9 and the conveyor 9
In front of the reaping section, the reaping section has a width larger than the width of the conveyor 9 and spans the boarding and driving section 4 and the handling chamber 15, and is offset toward the boarding and driving section 4 with respect to the conveyor 9. A section 8 is provided, and the reaping section 8 is provided with a conveying device 7 that gathers the harvested grain culm toward the starting end side of the conveyor 9, and as the handling drum 14 rotates, the conveyor 9 transfers the harvested grain to the handling drum 14. A V-shaped guide 16 is installed in the upper part of the handling chamber 15 to disperse the supplied grain culm from the rear of the handling chamber to the left and right and guide it to the front of the handling chamber. With respect to the center P ₁ , the grain tank is arranged to be offset toward the boarding operation section 4 side, and the lower part of the grain tank is placed at a position immediately behind the beater 18 , and placed at the upper front end of the sorting section by the straw walker 24 . A full culm input type combine harvester that is placed in a recessed position.