JP2000004654A - Thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thresher capable of well recovering grains setting seeds therein in the intermediate part of reaped grain culms located between a feed chain and a threshing cylinder or free grains over a rack sticking into the intermediate part thereof and improved in grain recovering efficiency. SOLUTION: This thresher is obtained by installing a treating rotator 10 rotatable around a second shaft center P2 parallel to a first shaft center P1 between a feed chain 1 for nipping the side of plant feet of reaped grain culms and conveying the reaped grain culms to the rear and a threshing cylinder 3 rotatable around the first shaft center P1 facing the front and rear directions and performing threshing actions on the side of the ear tips of the reaped grain culms conveyed with the feed chain 1 in the thresher.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feed chain which clamps the stem side of a cut culm and conveys it rearward, and which is conveyed by the feed chain while rotating around a first axis centering forward and backward. The present invention relates to a threshing device having a handling cylinder that performs a handling action on a tip side of a cut grain culm.

[0002]

2. Description of the Related Art Conventionally, such a threshing apparatus as described above is disclosed, for example, in Japanese Patent Application Laid-Open No. 9-187146, between a feed chain of a harvested grain culm held and conveyed by a feed chain and a handling cylinder. Was not configured to act on the intermediate portion located at

[0003]

For this reason, in the above-mentioned prior art, the grain that is fruited at the intermediate portion of the harvested culm or the intermediate portion is stabbed by the co-rotation with the handle. Since the stinging grains in the state are discharged as they are from the machine together with the cut grain culms (discharge straw), there is room for improvement in improving the grain collection efficiency.

[0004] It is an object of the present invention to improve the grain collection efficiency at which the kernels set at the intermediate portion of the harvested grain culm and the stuck grains stuck into the intermediate portion of the harvested grain culm can be satisfactorily collected. An object of the present invention is to provide an intended threshing apparatus.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, in a threshing apparatus, a feed chain which clamps a stem side of a harvested grain culm and conveys it rearward. And, between the handling cylinder that rotates around the first axis centering in the front-rear direction and performs a gripping action on the tip side of the harvested grain culm conveyed by the feed chain, the cylinder parallel to the first axis. A processing rotator that rotates around the second axis is provided.

According to the first aspect of the present invention, the processing rotator handles the intermediate portion of the harvested grain culm, which is clamped and conveyed by the feed chain, between the feed chain and the cylinder. Since the separating action is performed, the grains that are fruited at the intermediate portion can be threshed by the processing rotator, and stabbed around the intermediate portion by rotating with the handling cylinder. Can be caused to flow down below the intermediate portion. In addition, since the tangling of the intermediate portion of the harvested grain culm is arranged by the processing rotator, the handling of the harvested grain culm can be improved when the handling cylinder performs the handling action and the handling action, It becomes possible to suppress the generation of cut straw caused by the entanglement of the cut grain culm.

Further, in the self-removing type combine equipped with the above-described threshing device, the distance from the feed chain to the tip of the threshing device in the threshing device is kept constant irrespective of the grain culm length of the harvested grain culm. In general, the processing rotator is configured to perform a processing depth adjustment to prevent the occurrence of unhandled state due to the processing and the occurrence of an overload due to the deep processing. By applying the loosening action to the intermediate portion of the harvested grain culm, the entanglement of the intermediate portion of the harvested grain culm can be arranged, whereby the handling cylinder can be handled against the tip side of the harvested grain culm. Since the power load required for performing the action and the separating action can be reduced, if the handling depth is set to the deep handling side, the handling depth according to the grain culm length of the harvested grain culm Make adjustments Without having, it is possible to suppress the occurrence of overload by deep ironing while preventing the occurrence of remaining squeezing by shallow ironing. That is, it becomes possible to eliminate the need for adjusting the handling depth.

[Effect] Therefore, it is possible to satisfactorily collect kernels that are fruited at the intermediate portion of the harvested grain culm and stabbed grains that have been stabbed into the intermediate portion of the harvested grain culm. It is possible to collect the grains irrespective of the length of the culm of the harvested culm, without having to adjust the handling depth. It is possible to provide a threshing apparatus that can achieve the simplification of the configuration as a whole as well as the reduction of the manufacturing cost as well as the combination.

According to the second aspect of the present invention,
In the invention according to claim 1, the processing rotator includes:
It was formed into a spiral with a backward feeding function.

According to the second aspect of the present invention, the processing rotator provided between the feed chain and the handling cylinder has a feed function, so that the feed chain can cut the stem of the harvested grain culm. The transfer of the cut straw due to the large delay of the tip when transferring the harvested grain culm from the feed chain to the discharge straw transport device because the tip side can be suppressed when holding and transporting the cut side. It is possible to prevent defects and clogging of waste straw.

In particular, when the handling depth is set to the deep handling side and the handling depth adjustment is not required, the handling rotating body has a feed function, so that the handling cylinder is provided with the tip of the cut grain culm. Since it is possible to further reduce the power load required for performing the handling action or the handling action on the side, it is possible to more effectively prevent the occurrence of overload due to the deep handling.

[Effects] Therefore, it is possible to improve the efficiency of transporting the straw and to make it possible to collect the grains satisfactorily regardless of the length of the culm of the harvested culm while eliminating the need for adjusting the handling depth. A suitable threshing apparatus can be provided.

[0013]

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

FIG. 1 shows a longitudinal side view of a threshing device equipped in a self-removing type combiner. The threshing device is provided with a feed chain 1 and a handling room 2 arranged on the left side of the threshing device facing front and rear. Of the handle cylinder 3, which is rotatably driven around the first axis P <b> 1, a curved receiving net 4 surrounding the handling cylinder 3 from the lower left to the upper right, and below the receiving net 4. The swinging sorting device 5 provided, the kara min 6 for supplying the sorting wind provided below the front part of the swinging sorting device 5, and the first object recovery unit 7 provided below the front and rear middle part of the swinging sorting device 5. , A second collection unit 8 disposed below the rear part of the swinging sorting device 5 and a dust exhaust fan 9 disposed above the rear part of the swinging sorting device 5. Grain stalks guided into the handling room 2 by the feed chain 1 that clamps the stock side and conveys it backward Against the front side, a plurality of 扱歯 3A which protrude equipped on the peripheral surface of the threshing drum 3, with the rotation of the threshing drum 3,
By applying a shocking action to separate the grains from the tip side while applying a handling action to sort out the entanglement on the tip side, the grains and the like are directed from the receiving net 4 to the swinging sorter 5 below. The processed material is allowed to leak, and the rocking sorting device 5 sorts and leaks kernels and the like from the processed material by the rocking and the sorting wind from the Karamin 6 and also removes broken straw and straw chips behind. Conveyed toward the dust fan 9, the first material recovery unit 7 collects the single-grained kernel as the first material, and the second product recovery unit 8
However, a mixture of grains and mixed straw and straw waste is collected as a second product, and the dust discharge fan 9 discharges the broken straw and straw waste outside the machine.

By the way, although not shown, the grains collected by the first article collecting section 7 are supplied to a grain tank by a lifting screw conveyor. on the other hand,
The mixture recovered in the second recovery section 8 is reduced on the swing sorting device 5 by a second reduction screw.

As shown in FIGS. 1 to 3, between the feed chain 1 and the handling cylinder 3, a rotation is made around a second axis P2 parallel to the first axis P1 which is the rotation axis of the handling cylinder 3. A processing rotator 10 is provided. The processing rotator 10 has a plurality of teeth 10A protrudingly provided on a peripheral surface thereof, and is interlocked to the handling cylinder 3 via a belt-type transmission mechanism 11 so as to be driven in the same direction as the handling cylinder 3. Have been.

With this configuration, during the threshing operation in which the handling cylinder 3 is driven, the processing rotator 10 is provided at an intermediate portion between the feed chain 1 and the handling cylinder 3 of the harvested grain culm held and transported by the feed chain 1. The processing rotating body 10 allows the kernels that have been set at the intermediate portion to be threshed, and the processing rotating body 10 causes the kernels to rotate. It is possible to cause the stinging particles that have reached the middle portion to be stuck and flow down toward the receiving net 4, and the tangling of the middle portion of the harvested grain culm by the processing rotating body 10 is arranged. By doing so, it is possible to improve the handling of the teeth 3A for the cut cereal culm when the handling cylinder 3 performs the loosening action or the handling action, and it is possible to suppress the generation of cut straw, so that the grain collection efficiency is improved. Improve It has become as to be.

Moreover, the processing rotating body 10 performs a loosening action on the middle portion of the cut grain culm to arrange the entanglement of the middle portion of the cut grain culm. Since it becomes possible to reduce the power load required when performing a handling action or a handling action, a cutting section (not shown) generally used in a self-removing type combine equipped with a threshing device as described above is used. When the harvested grain culm is delivered to the feed chain 1, the feed chain 1 clamps the harvested grain culm so that the distance from the feed chain 1 to the ear in the threshing device is constant according to the grain culm length of the harvested grain culm. Adjust the position so that the handling depth is set to the deep handling side without adjusting the handling depth, such as preventing the occurrence of unhandled by shallow handling and the occurrence of overload by deep handling. To Lever, while preventing the occurrence of remaining squeezing by shallow squeezing, it is possible to suppress the occurrence of excessive load on the threshing drum 3 by deep ironing. In other words, it becomes possible to eliminate the need for adjusting the handling depth, which is advantageous in simplifying the configuration of the entire combine and reducing the manufacturing cost.

[Other Embodiments] Other embodiments will be listed below. The threshing device may be a device mounted on a harvester. As shown in FIG. 4, the processing rotating body 10 may be formed in a spiral shape having a backward feeding function so as to suppress occurrence of a tip delay, and as shown in FIG. A plurality of handling teeth 10 </ b> A may be protrudingly provided on the peripheral edge so as to obtain an effective loosening action and a gripping action while suppressing occurrence of a tip delay.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of a threshing device equipped in a self-removing combine.

FIG. 2 is a cross-sectional plan view of a threshing apparatus showing an arrangement and a configuration of a processing rotator.

FIG. 3 is a vertical front view of a threshing apparatus showing the arrangement and configuration of a processing rotator.

FIG. 4 is a cross-sectional plan view of a threshing apparatus showing another embodiment in which the processing rotator is formed in a spiral shape.

FIG. 5 is a vertical sectional front view of a threshing apparatus showing another embodiment in which a processing rotary body formed in a spiral shape is provided with a toothing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Feed chain 3 Handling cylinder 10 Processing rotating body P1 First shaft center P2 Second shaft center

Claims (2)

[Claims] 1. A feed chain for nipping a stem side of a harvested grain culm and transporting it backward, and a tip side of a harvested grain culm which is rotated around a first shaft center in a front-rear direction and transported by the feed chain. A threshing device, wherein a processing rotator that rotates about a second axis parallel to the first axis is disposed between a handling cylinder that performs a handling action on the thruster. 2. The threshing apparatus according to claim 1, wherein the processing rotator is formed in a spiral shape having a backward feeding function.