JPH0518921Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a threshing device mounted on a combine harvester or the like.

Prior Art In a threshing device, after grain culms are threshed in a handling room, the threshed grains are sent to a sorting section, where they are subjected to rocking sorting and wind sorting to separate grains from straw waste, etc. They are now discharged separately.

Problems that the invention aims to solve When working with a combine harvester, there is a fundamental desire to harvest as much as possible in one day, regardless of whether it is a part-time job or a full-time job, but the biggest hurdle is this: Rain on the scheduled day of harvesting, light rain during harvesting due to sudden changes in weather, and morning dew, but apart from this, the tips of lodging timber in wet fields are constantly wet, and it is difficult to combine harvesters in such weather or in grain culm conditions. If this work is carried out, the receiving net in the handling room may become clogged, resulting in extreme grain loss, or the No. 2 reduction thrower or dust removal section may become clogged, or the sorting section may collect grains and straw waste, etc. There are inconveniences such as poor separation and poor sorting. Especially recently, there are many farmers who use holidays to carry out harvesting, etc., and there is a tendency to carry out combine harvester work early in the morning with the grain culms still covered in morning dew, or to force harvesting even when it rains a little. Because of this, there is a need for threshing equipment that is highly adaptable to wet materials.

Means for Solving the Problems Therefore, the present invention is to provide a leakage body with a coarse mesh on the outer periphery of a handling drum that threshes supplied grain culms, and to open the end portion of the leakage body in the grain culm transfer direction. The above problems are solved by forming a dust inlet, installing a dewatering device below the handling room, and providing a conveyor that allows only the threshed grains leaked from the leakage body to pass through the dewatering device. It is something.

Function Among the threshed grains in the handling barrel, long straws that do not leak the leakage bodies are discharged from the dust outlet installed at the end of the handling chamber, and single grains and branch stalks that have leaked through the handling chamber are also removed. The grains and the like are passed through a dehydrator by a carrier, dehydrated in the dehydrator, and sent to the next process. Therefore, leakage such as single grains and long straw are completely separated, and dehydration treatment is performed only on the leakage, so that efficient dehydration is performed.

Embodiment 1 is a handling chamber of a top-handling type threshing machine in which a handling drum 2 is pivotally supported, and a loose mesh leaking body 3 is stretched over the outer periphery of the handling drum 2 on the lower side. The end portion of the leaking body 3 in the grain culm transfer direction is opened to form a dust inlet 4. Further, below the handling chamber 1, conveyors 5 and 6 consisting of a screw conveyor or the like are arranged parallel to the handling cylinder axis 2a.
are arranged side by side, and a second handling cylinder 8 having a receiving net 7 disposed opposite thereto is integrally connected to one end side of each of these conveyors 5 and 6. A spiral 8b is provided at the rear of the second handling cylinder 8 in succession to the handling teeth 8a. a is a dust outlet for long straw, etc.; 5' and 6' are troughs with small holes large enough to prevent grains from leaking; 9 is a feed chain;
10 is waste waratene. 11 is a partition plate,
The threshed grains that have been threshed by the handling drum 2 fall onto the conveyor 5 side through this partition plate 11.

By the way, the conveyance direction of the lower part of the dust inlet 4 in the conveyor 5 is directed toward the second handling cylinder 8, and the conveyance direction of the part corresponding to the rear side in the grain culm transfer direction in the handling chamber 1 than the dust inlet 4 is The directions of the spirals are opposite to each other so as to face the starting end of the handling cylinder 2 (the fifth
(see figure). 5a is a discharge blade. On the other hand, the conveying direction of the conveying body 6 is directed toward the second handling cylinder 8 side, and with this configuration, the material leaking from the leakage body 3 is once conveyed to the starting end side of the handling cylinder 2 by the conveying body 5. ,
At the end of the conveyance, it is transferred to the other conveyor 6 and then conveyed to the second handling cylinder 8, where it is subjected to normal processing. The grains, etc. that have been properly processed in the second handling cylinder 8 leak through the receiving net 7 and are sorted in the lower sorting section 12, and the long straws, etc. are removed from the dust outlet a.
It is now being ejected from the aircraft. 13 is the first spiral, 14 is the second spiral, and F is the karin. 1
5 is a dehydration basket provided on the outer periphery of the carrier 6;
This dewatering basket 15 has a grain threshing entrance 15a on one side.
has a discharge port 15b on the other side and a large number of water passage holes 15c on the outer periphery, and is rotatably supported via an appropriate rotation drive mechanism M and support rollers 16, thereby forming a centrifugal separation type dewatering device. Q is constructed. Note that the rotation speed and rotation direction of the dehydration basket 15 are configured to be able to be changed as appropriate (for example, if the rotation speed of the conveyors 5, 6 and the second handling drum 8 is 800 rotations per minute, the rotation speed of the dehydration basket 15 (set the speed to 2300 revolutions per minute, etc.) 17 is dehydration basket 1
This guide plate 17 is provided obliquely from the outlet 15b side of the dewatering basket 15 to the inlet 15a side, and extends from the lower end of the incline to the front side of the winnower F. The guide plate 17 is bent and extended downward so as to cover it, and the guide plate 17 not only forms a discharge passage b for the water dehydrated in the dehydration basket 15, but also forms a supply port c for clean air to the winch F. Moreover, it is now possible to increase the rigidity of the aircraft. By the way, a certain degree of dehydration is carried out in the handling chamber 1 by the rotation of the handling cylinder 2, but the water dehydrated in the handling chamber 1 is drained through the drain hole of the receiving plate A, as shown in FIG. It is designed to be discharged from the machine via the drain port.

In the configuration as described above, the grain culm supplied to the upper part of the handling chamber 1 is threshed by the rotation of the handling cylinder 2. During threshing, long straws, etc. that do not leak through the leakage body 3 fall from the dust inlet 4 onto the conveyor 5 by the partition plate 11, but the conveyor 5 has a part corresponding to the dust inlet 4 whose conveying direction is in the second direction. Since it is configured to face the handling cylinder 8 side, the long straw and the like are sent as they are to the second handling cylinder 8 side by the conveyor 5. On the other hand, single grains and grains with branches attached that have leaked through the leakage body 3 are once sent to the starting end side of the handling cylinder 2 by the conveyor 5, and then sent to the starting end side of the conveying body 6 by the discharge vane 5a at the conveyance terminal end. It is discharged and conveyed to the second handling cylinder 8 side, where it is subjected to normal processing.

By the way, leakage from the leakage body 3 enters the rotating dehydration basket 15 while being conveyed to the second handling cylinder 8 side by the conveyance bodies 5 and 6, and is diffused toward the inner peripheral surface of the dehydration basket 15. Due to forced centrifugal separation, water adhering to leaked materials is removed from the dehydration basket 15.
After being discharged from the dehydration basket 15 through the moisture passage hole 15c, the moisture is guided by the guide plate 17 and discharged outside the machine. The leaked material, which has undergone the dehydration process and has almost no moisture attached thereto, exits the discharge port 15b of the dehydration basket 15 and is sent to the second handling cylinder 8, where it is properly treated. , grains and relatively small straw waste leak through the receiving net 7 and are sorted by the lower sorting section 12, fine grains are harvested through the first spiral 13, etc. The material is returned to the sorting section 12 via the second spiral 14 and a second material return thrower (not shown) and is reprocessed. In addition, long straw and the like that do not leak through the receiving net 7 are discharged from the machine through the dust outlet a. In this way, in the present invention, only leakage from the leakage body 3 (single grains, grains attached to branches, etc.) passes through the dehydrator Q, so that efficient dehydration is always performed, and There is no winding of long straw or the like at the folded portions of the carriers 5, 6, and the carriers 5, 6 can be made compact. In addition, in the handling chamber 1, unlike the structure in which the lower part of the handling chamber is open, even if the leakage body 3 has a coarse mesh, the treatment action by the leakage body 3 is performed, and the leakage is transferred to the second handling chamber. In combination with the normal processing at step 8, even more effective processing is performed.

Effects of the invention As mentioned above, the present invention includes a loosely meshed leaking body stretched around the outer periphery of the handling barrel that threshes the supplied grain culm.
A dust inlet is formed by opening the end of the leaking body in the grain culm transfer direction, and a dewatering device is provided below the handling chamber, and a conveying body is provided that allows only the threshed grains leaking from the leaking body to pass through the dewatering device. Because of this, the dewatering equipment does not dewater long straws, etc. during threshing in the handling room, and dewatering is only performed on threshed grains such as grains and straw waste that have leaked through the leakage body. So,
Efficient dehydration action can be maintained at all times.
In addition, as a result, even when threshing wet materials, grains and straw waste are better separated when the sorting action is performed, and as a result of highly accurate sorting, the adaptability to wet materials is greatly improved. became possible.

[Brief explanation of the drawing]

Figure 1 is a side sectional view of a threshing machine equipped with the present invention.
Figure 2 is a sectional view taken along line AA in Figure 1, Figure 3 is a sectional view taken along line B-B, Figure 4 is a sectional view taken along line C-C, Figure 5 is a perspective view of the main parts, and Figure 6 is a sectional view taken along line C-C. FIG. 7 is an enlarged perspective view of the dewatering device and a longitudinal cross-sectional view of the dewatering basket. In the figure, 2 is the handling barrel, 3 is the leakage body, 4 is the dust outlet, 5,
6 is a conveyor, and Q is a dewatering device.

Claims (1)

[Scope of utility model registration request] A leaking body with a coarse mesh is stretched around the outer periphery of the handling drum that threshes the supplied grain culm, and the end of the leaking body in the grain culm transfer direction is opened to form a dust inlet, and a dewatering port is provided below the handling chamber. A threshing device characterized by being provided with a device and a conveying body that allows only the threshed grains leaked from the leakage body to pass through the dewatering device.