JPH0332965B2 - - 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. The present invention relates to a full-culm input type combine harvester configured to feed into a handling chamber equipped with a handling cylinder that rotates around an axis.

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. This structure has a structure in which a reaping section with a width wider than the traveling device is provided, a conveyor with the same width as the threshing device is arranged between the reaping section and the threshing device, and a boarding and driving section is arranged at the upper front end of the threshing device. things are becoming commonplace.

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 configuration of the present invention for achieving the above object is that a threshing device equipped with a handling barrel that rotates around the transverse axis of the machine body and a boarding operation section are mounted in parallel on the left and right,
In front of the threshing device, a conveyor whose width is smaller than that of the handling drum is provided so as to supply the reaped grain culm to approximately the left and right center of the handling room equipped with the handling drum; A reaping section having a width larger than the width and extending between the boarding and driving section and the handling room and being offset toward the boarding and driving section with respect to the conveyor is provided, and the reaped grain culm is placed in the reaping section. A conveying device is provided on the starting end side of the conveyor, and as the handling drum rotates, grain culms supplied to the handling room by the conveyor are dispersed from the rear of the handling room to the left and right, and are distributed to the front of the handling room. A V-shaped guide is provided in the upper part of the handling chamber, and the tip of the guide is offset toward the boarding operation section with respect to the left-right center of the conveyor. is as follows.

According to the above configuration, the boarding operation section and the threshing device are arranged side by side on the left and right, and the reaping section of the cutting cloth that spans the boarding operation section and the threshing device is provided at the front of the machine body.
We were able to create a compact fuselage structure with no wasted space when viewed from above, and with a low fuselage height and center of gravity.

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 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 side tends to be overloaded, while the opposite side tends to be underloaded, making it impossible to fully demonstrate the threshing function.However, in the present invention, the V-shaped structure that distributes and guides the grain culms to the left and right at the front of the handling room is used. By deviating the tip of the guide toward the boarding operation section side with respect to the left and right center of the conveyor, that is, toward the side where a large amount of grain culm is supplied, the amount of grain culm distributed to the left and right sides of this guide is made uniform, It has become possible to demonstrate sufficient threshing performance over the entire length of the handling barrel.

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

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 conveying the harvested grain culm to the threshing device 3 is provided at the front end of the machine so that it can be moved up and down, thereby forming a full culm input type combine harvester.

In the boarding operation section 4, a pair of left and right gear shift levers 10 respectively corresponding to the left and right crawler type traveling devices 1 is configured by passing through a lever guide hole 11 in the longitudinal direction of the lever 10, as shown in FIG. An angular guide member 12 is attached to the part where the round bar lever itself and the side edge of the guide hole 11 are connected by a square guide member 12 that prevents the lever 10 from rattling from side to side as it swings back and forth by making surface sliding contact with the side edge of the guide hole 11. lever 10 due to sliding contact with
The length of contact with the side edge of the guide hole 11 is made longer than when the lever 10 is guided, thereby suppressing wear and tear.
In order to avoid rearward operation when operating the forward operation range F and reverse operation range R, the lever 10 is
A stopper portion 11 that prevents linear back and forth rocking of the
The structure is such that the angular guide member 12 can reliably make contact with a.

Then, the guide hole 11 of the square guide member 12
In the upper part of the guide hole 11, the part on the side of the gear change state display 13 stamped on the side edge of the guide hole 11 is formed into a pointed shape pointing toward the display 13 side.
2a is also used as an index for display 13.

To explain in more detail the arrangement of the reaping section 8 and the threshing device 3, as shown in FIGS. 1, 2, and 4, the threshing device 3 performs a rotational threshing action around the horizontal axis Q of the machine body. The handling chamber 15 containing the handling trunk 14 is arranged in such a way 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 operation section 4, and the width of the handling chamber 15 is The conveyor 9, which is formed to be narrower in width _than It has been set up.

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 the same position,
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. It can be changed 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.

[Brief explanation of drawings]

The drawings show an embodiment of the combine harvester according to the present invention, in which Fig. 1 is an overall longitudinal cross-sectional view, Fig. 2 is a plan view, Fig. 3 is an enlarged perspective view of the speed change operation lever, and Fig. 4 shows threshing processing in the handling room. FIG. 3 is a schematic perspective view showing a state of transporting objects. 8...Reaping section, 9...Conveyor, 14...Handling cylinder, 15...Handling room, 16...Guide, Q...Handling cylinder axis, _P1 ...Conveyor left and right center.

Claims (1)

[Claims] 1 A threshing device 3 equipped with a handling drum 14 that rotates around the transverse axis Q of the machine body and a boarding operation section 4 are mounted in parallel on the left and right, and the handling drum 1 is installed in front of the threshing device 3.
A conveyor 9 having a width smaller than the handling drum 15 is installed in front of the conveyor 9 so as to supply harvested grain culms to the left and right center of the handling chamber 15 equipped with a conveyor 9. A reaping section 8 having a width spanning the boarding section 4 and the handling room 15 and offset toward the boarding section 4 side with respect to the conveyor 9 is provided, and the reaping section 8 is provided with a reaping section 8 that has a width spanning the boarding section 4 and the handling room 15. A conveying device 7 is provided to gather the culms toward the starting end of the conveyor 9,
As the handling drum 14 rotates, the V-shaped guide 16 is installed to disperse the grain culms supplied to the handling chamber 15 by the conveyor 9 from the rear of the handling chamber to the left and right and guide them to the front of the handling chamber. The combine harvester is provided in the upper part of the handling chamber 15, and the tip of the guide 16 is offset toward the boarding and operating section 4 side with respect to the left-right center _P1 of the conveyor 9.