JPH0119637Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a reaped culm conveying device of a normal combine harvester that lifts and conveys the reaped stalk culm to the threshing section where the entire harvested stalk is threshed. Through modification, the harvested stem culm can be efficiently pre-thrested before being introduced into the threshing section to reduce the threshing load, and at the same time the stem culm can be cut to allow good culm removal processing. The aim is to improve the overall grain recovery efficiency.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic longitudinal side view of a normal type combine harvester, in which a reaping conveyance section 1 that can freely swing around a horizontal axis is attached to the front side of a traveling machine body 2. The machine is equipped with a threshing section 3, a beater 4, a separator 5, a straw walker 6, and a grain collecting and sorting section 7, which introduce and thresh the entire harvested stem culm from the machine. 8, Glen tank 9 and engine 10 are arranged,
The conventional combine harvester is configured to harvest and thresh the planted culms, collect grain from the processed material, store it in the grain tank 9, and discharge the waste culms outside the machine. has been done.

The reaping and conveying section 1 includes an inclined plate 12 having a platform 11 connected to the front edge thereof, which is attached to the front side of the traveling machine body 2 so as to be swingable around a horizontal axis. A reaping device 13 is installed above the reaping device 13, and a rotating reel 14 for taking in the planted stems is installed above the reaping device 13.
At the rear of the reaping device 13, an auger 15 whose left and right portions are reversely spiral for bringing the reaped stalk culm to the center of the platform 11 is disposed, respectively, and the reaped stalk culm led out from the auger 15 is transferred to the threshing section 3. A harvested stem and culm conveying device 16 is provided to lift and convey the harvested stem and culm toward.

The reaped stem culm conveying device 16 includes a second
As shown in the figure, a plurality of (two in the figure) belt type conveyors 18, 19 are installed on the rising plate parts 17, 17 on both sides of the inclined plate 12, and the lower side is the upward conveying part. The conveyors 18 and 19 are arranged with a smaller distance from the inclined plate 12 as they are closer to the bottom of the conveyor, and the circumferential speeds of the conveyors 18 and 19 are set to be higher as the conveyor 19 is on the lower side in the conveyance direction. The peripheral speed of the threshing cylinder 20 of the threshing section 3 is set higher than the peripheral speed of the side conveyor 19,
Then, the cut stem culms lifted and conveyed by the conveyor 18 on the upper side in the conveyance direction are transferred to the conveyor 19 on the lower side.
The conveyor 19 takes over and lifts and conveys it.
is introduced into the threshing section 3.

According to the above configuration, in the conveyance process by the conveyors 18 and 19, the harvested stem culm is subjected to shedding treatment by a scrubbing action, and since the circumferential speed of the conveyor 19 on the lower side is high, the conveyor is conveyed by it. The layer of cut stem culms is thinner than the layer of stem culms conveyed by the upper conveyor 18, so that the shedding process can be carried out more effectively.

When taking in stem culms by the conveyor 19 on the lower side and the threshing cylinder 20, the circumferential speed of those conveyors on the upper side is set higher than that of the conveyor 19 on the lower side and the threshing cylinder 20. Furthermore, although the amount of stalks introduced per unit time into the threshing cylinder 20 remains the same, since the layer of introduced stalks is thin, the introduction of the stalks is smooth and the load can be reduced.

Furthermore, the conveyor 19 on the lower side pulls the harvested stem culm when the stem culm is transferred between the conveyors 18 and 19, and the threshing cylinder 20 pulls the harvested stem culm when the stem culm is transferred between the conveyor 19 and the threshing cylinder 20. It takes in the stem culm as if it were cut and scraped, and at this time it produces a threshing effect and also causes the cutting of the stem culm, until the cut stem culm is introduced into the threshing section 3. During this process, the threshing load on the threshing section 3 can be greatly reduced, and the culm can be effectively processed by breaking the stalk culm. That is, it is possible to improve the recovery efficiency of residual grains such as pricked grains and unshipped grains.

In addition, the number of conveyors may be set to three or more, and the peripheral speed of each conveyor may be set to be higher as the conveyor is located on the lower side, and the conveyor structure may be changed to one in which an endless rotation chain is connected with a horizontal bar. In this case, although no graining effect can be expected, sufficient shedding can be achieved in the inherited part of the stem culm.

As explained above, the present invention has the above-mentioned configuration, and is capable of passing the harvested stem culms between the front and rear conveyors, and when the circumferential speed of the threshing cylinder is made higher than that of the lowermost conveyor. Due to the raking action of the stalk culm due to the inheritance of the harvested stalk culm, it is possible to pre-thresh the harvested stalk culm before it is introduced into the threshing section, and the layer of stalk culms introduced into the threshing section is The combination of its thinness and smooth introduction into the threshing unit reduces the threshing load and improves threshing efficiency.

Moreover, by raking the stem culm at the point where the stem culm is inherited, it can be expected that the stem culm will be cut into pieces, which allows for efficient culm processing and improves the threshing efficiency mentioned above. At the same time, it has become possible to improve the recovery efficiency of residual grains such as pierced grains and unhulled grains.

[Brief explanation of the drawing]

The drawings show an embodiment of the reaped stalk and culm conveying device of a conventional combine harvester according to the present invention, and FIG. 1 is a schematic overall longitudinal side view of the conventional combine harvester, and FIG. 2 is a side view of the reaped stalk and culm conveying device. . 3... Threshing section, 18, 19... Conveyor, 20
...Threshing cylinder.

Claims (1)

[Scope of utility model registration request] This is a reaped stalk culm conveying device for a normal combine harvester that lifts and transports the reaped stalk culm to a threshing section where the entire harvested stalk is threshed. A plurality of conveyors are provided in the conveyance direction, and the circumferential speed of the plurality of conveyors is set to be higher as the one on the lower side in the conveyance direction, and the circumferential speed of the threshing cylinder of the threshing section is approximately equal to the circumferential speed of the conveyor on the lowest side. A reaped stem and culm conveying device for an ordinary type combine harvester characterized by being the same or larger.