JPS6411249B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sorting device used in an axial flow type threshing device for threshing and sorting rice, wheat, millet, etc. mainly.

[Conventional technology]

This type of sorting device is used in well-known self-shredding combine harvesters, threshing machines, etc., in which the grain is threshed in a handling room that moves the threshed grain in the axial direction, and the grain that leaks through the receiving net. Contaminants, and materials to be sorted such as chaff discharged from the handling room are placed on a swinging shelf that swings back and forth in the sorting room that extends in the same direction as the axis of the handling room. Grain bread, Glen sieve, Chaff sieve,
Sorting is done using a stroke rack, etc.

[Problem to be solved by the invention]

However, this sorting device not only occupies most of the sorting room in terms of volume, but also occupies a large volume of the entire threshing device, and has become a key to making the entire threshing device smaller, simpler, and lighter. Ta. In addition, there were also significant negative factors such as the influence of rocking and vibration of the rocking shelf on the threshing device, such as a decrease in durability and an increase in required power.

[Means and actions for solving problems]

Therefore, the present invention is completely different from the above-mentioned conventional sorting method (particularly the oscillating type), and has a stirring member that allows almost all of the material to be sorted that has leaked or been discharged from the handling chamber to be collected along the axis of the handling chamber. By rotating the screw auger and moving the material to be sorted in the axial direction, the screw auger is arranged to be parallel or perpendicular to The sorting material is efficiently sorted, and the material that leaks through the mesh is subjected to wind separation processing, and compared to conventional sorting equipment, it is smaller, has a simpler mechanism, is lighter in weight, and has higher performance. Less rocking and vibration improves durability and reduces power consumption.In addition, when the screw auger is installed perpendicular to the axis of the handling chamber, the configuration can be simplified and wind separation can be improved. The present invention aims to provide a sorting device that can improve accuracy, shorten the length of the machine, and make it more compact.

〔Example〕

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

In Fig. 1, numeral 1 is the handling room of the threshing equipment;
A handling cylinder 2 is mounted on a shaft within the handling chamber 1, and a sorting chamber 4 is provided below the receiving net 3 stretched around the outer periphery of the handling chamber 1 along the axial direction of the handling chamber 1. .

In the sorting chamber 4, parallel to the axial direction of the handling chamber 1,
A screw auger 5 is mounted on a shaft almost horizontally, and a sorting net 6 is stretched over a receiving gutter portion of the screw auger 5 in a semicircular shape when viewed from the front. The lower part of the sorting net 6 is narrowed down into a funnel shape by guide plates 7, 7, and below the narrowed part is provided with the first opening 8, and in front of the first opening 8 is provided with a winnowing fan 9. An air passage 10 is formed behind the fan 9 and communicates with a dust exhaust port (not shown).

Note that the screw auger 5 and the sorting net 6
may be arranged perpendicularly to the axis of the handling chamber 1 as shown in FIGS. It is something.

In addition, the receiving net 3 in the present invention has a slightly rougher mesh than the conventional one to improve the leakage of threshed grains in the handling room 1, and the sorting net 6 has a finer mesh than the receiving net 3.
For example, it is preferable to use a diameter of about 8 mm for rice, and about 10 mm for soybeans, so that the grains to be sorted can leak through.

The sorting device configured in this way collects the material to be sorted which has been threshed in the handling chamber 1 by the rotation of the handling drum 2 and has leaked through the receiving net 3 or has been discharged from the end of the receiving net 3 through the screw auger 5. While the grains are received by the sorting net 6 and moved toward the terminal end by the rotating screw auger 5, they leak through the sorting net 6, and the waste that does not leak is sent to the terminal end. The grains and fine dust that have leaked through the sorting net 6 are sorted by the sorting wind from the karaki fan 9, and the grains are placed in the first mouth 8, and
Exhaust dust passes through the air passage 10 and is discharged to the outside of the machine from the dust exhaust port. Moreover, the dust brought to the terminal end of the screw auger 5 and the sorting net 6 is also discharged from the dust outlet. The grains at the first opening 8 are discharged and stored outside the machine via a screw conveyor, thrower, etc., as in the conventional case.

Further, as shown in FIG. 2, the screw auger 5 has a plate-like body 5a attached between the tops of adjacent blades in the axial direction, and a rod-like body 5a attached to the screw auger 5 as shown in FIG. If a stirring member such as the protrusion 5b or a combination of these is provided, for example, even if there is a large amount of material to be sorted that leaks or is discharged from the handling chamber 1, it can be moved while stirring and given a spiral trajectory, and the sorting net can be moved. 6 from clogging, and
It can prevent long straw etc. from wrapping around the screw shaft and improve sorting efficiency.

Furthermore, when the sorting device of the present invention is applied to rice, for example, while the screw auger 5 moves on the sorting net 6, the same kind of threshing as in the handling room 1 is carried out.
It also has a grain-shedding effect, promoting the treatment of grains with attached branches and stalks, etc.

Furthermore, when the screw auger 5 and the sorting net 6 are arranged perpendicularly to the axis of the handling chamber 1 as shown in FIGS. The grains can be efficiently sorted separately from the materials to be sorted discharged from the rear end of the handling chamber 1, and the grains leaking from the sorting net 6 can be separated from the air sorting section where the falling position is below. Because they are always in the same location, wind sorting accuracy is high, and the length of the machine can be shortened compared to when the screw auger 5 and the sorting net 6 are arranged parallel to the axis of the handling room 1, making the whole machine smaller. It becomes possible to convert into

In the embodiment described above, the dust remaining at the end of the screw auger 5 and the sorting net 6 is discharged outside the machine. etc. may remain, and discharging them outside the machine will result in loss. Therefore, for example, a thrower 11 is installed at the end of the screw auger 5 and the sorting net 6, as shown in Fig. 4, to remove the remaining waste. If the grain is returned to the handling room 1 and threshed again, threshing loss can be reduced.

〔Effect of the invention〕

As described above, the sorting device of the present invention uses the screw auger 5, the stirring members (plate-shaped body 5a, rod-shaped protrusions 5b, etc.) and the sorting net 6 to stir the materials to be sorted that have leaked or been discharged from the handling chamber 1.・Sorting, sorting net 6
Since the waste to be sorted that has leaked out is air-sorted using Karachi Fan 9, the mechanism of the threshing device is extremely simplified compared to the conventional swing-type sorter, and the material to be sorted does not get clogged while being agitated. It is moved and processed to achieve high performance, making it possible to make the threshing equipment smaller and lighter, and because there is less vibration, it is possible to improve the durability of the entire threshing equipment, reduce power consumption, and reduce threshing loss.

In addition, when the screw auger 5 and the sorting net 6 are arranged perpendicular to the axis of the handling room 1, the sorting efficiency of the objects to be sorted is improved, the accuracy of wind sorting is higher, and the length of the machine is further shortened. This makes it possible to downsize the entire aircraft.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of a threshing device to which the present invention is applied, FIGS. 2 and 3 are side views showing other embodiments of the screw auger, and FIGS. 4 and 5 are schematic side views of a threshing device to which the present invention is applied. FIG. 6 is a schematic side view of the entire threshing device showing another embodiment, and FIG. 6 is a plan view thereof. 1... Handling room, 2... Handling barrel, 3... Receiving net, 4...
Sorting room, 5... Screw auger, 5a... plate-shaped body, 5b... rod-shaped projection, 6... sorting net, 7... information board, 8... first exit, 9... Karakin fan, 10...
...Wind path, 11...Thrower.

Claims (1)

[Scope of Claims] 1. In an axial flow threshing device having a handling chamber for threshing grain while moving it in the axial direction of the handling chamber, and a sorting chamber arranged along the axial direction of the handling chamber. In the sorting chamber, a screw auger having a stirring member, which is disposed substantially parallel to the axis of the handling chamber, and a net stretched over a receiving gutter of the screw auger are provided, and leakage from the handling chamber is prevented. The system is characterized in that almost all of the discharged material to be sorted is received and sorted and processed by a screw auger while moving in the axial direction, and the material to be sorted that has leaked through the net is subjected to wind separation processing. Sorting device. 2. In an axial flow threshing device having a handling chamber for threshing grain while moving it in the axial direction of the handling chamber, and a sorting chamber arranged along the axial direction of the handling chamber, in the sorting chamber, A screw auger that is disposed substantially perpendicular to the axial direction of the handling chamber and has a stirring member, and a net stretched over the receiving gutter of the screw auger are provided to prevent leakage from the handling chamber. Almost all of the discharged material to be sorted is received and sorted and processed by a screw auger while moving in the axial direction.
A sorting device characterized in that the sorted material leaking through the net is subjected to wind selection processing.