JPH047173B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sorting device for separating grains that are threshed and dropped in a handling chamber of a thresher from grains that are generated and dropped during threshing.

The sorting device of the threshing machine is equipped with a swinging shelf that swings below the handling chamber. Inside the swinging shelf, there are grain sieves and screening nets for sorting the threshed grains, as well as straw waste and ears generated during threshing. It is equipped with a strorack and chaff sieve to sort out processed materials such as chips. Sorting by these means the swinging of the swinging shelf, the sorting air blown into the swinging shelf from a winnow that rotates below the starting end of the swinging shelf, and the suction air of the suction fan rotating above the swinging shelf. It is carried out by.

The materials to be sorted that are supplied to such a sorting device include, in addition to grains, a variety of miscellaneous materials of different sizes and densities, such as straw waste, ear scraps, stubble, twig stalks, and weeds, and are divided into threshing varieties and The amount and density vary greatly depending on the dry and wet conditions of the grain culm. Therefore, in order to always ensure excellent sorting performance, it is desirable to arrange each sorter according to the threshing state and to adjust the volume and direction of the sorting air. Conventionally, attempts have been made to adjust the sorting conditions to the threshing state by changing the speed of the winnowing machine or opening and closing the chaff sheave, but none of these methods have been able to produce satisfactory results.

The present invention has been made in view of the above points, and includes a plurality of fins of a grain sorting body installed in a swinging shelf located below the processed material sorting body so as to be adjustable in angle. A ventilation-enabled sorting body is stretched between the starting end of the grain sorting body and the grain sliding body of the swinging shelf, and a swingable wind direction adjustment plate is placed in the air passage toward the starting end of the grain sorting body. By providing this, the wind direction can be changed to the direction in which the sorting air is blown up from below the grain sorter through between the fins, and in the direction in which the fin spacing is narrowed and the wind is blown up through the ventilation sorter in front of the grain sorter starting end. To provide a sorting device for a threshing machine in which a wind direction adjusting plate and fins are connected so that they can be adjusted in conjunction with each other to ensure excellent sorting performance that can correspond to various threshing conditions. Embodiments of the present invention will be described in detail below with reference to the drawings.

1 to 3 show an embodiment of the sorting device according to the present invention, FIG. 1 is a sectional view of a threshing machine implementing this, FIG. 2 is a sectional view of the main part of the sorting device, and FIG. 3 is a sectional view of the main part of the sorting device. It is a side view of a grain culm sorting body, a wind direction control board, and these operation parts. In the figure, a frame 2 of a threshing machine 1 is integrally formed with a handling chamber 3 and a sorting chamber 4 below it, and inside the handling chamber 3, a large number of handling teeth 5 are arranged in a spiral shape on the circumferential surface. A handling cylinder 6 is mounted on a shaft. Grain culm supply port 7 and grain culm discharge port 8 in handling room 3
A feed chain 9 for conveying the threshing culm is stretched outside the handling opening opened in the front side plate of the frame 2. A handling chamber receiving net 10 is stretched between the sides and the lower part of the handling barrel 6, and is formed in a concentric semicircular arc shape to allow the threshed grains to leak through. A dust exhaust port 11 is opened for discharging treated materials such as straw waste, ear cuts, and hooks as waste.

In the sorting chamber 4 below the handling room receiving screen 10, a box-shaped swinging shelf 12 that is completely open upward is mounted and supported by an eccentric cam 13 and a swinging arm 14. It is configured to swing as the eccentric cam 13 rotates. The bottom plate of this swinging shelf 12 is formed of a grain sliding body 15 for sliding falling grains, a partition plate 16, and a second object sliding body 17 for sliding the second object. ,16,1
The space between 7 and 7 is opened downward. code 18
1 is a chaff sieve as a material sorting body located below the dust exhaust port 11 and supported over its entire width within the swinging shelf 12, so as to form an opening that communicates with the upper and lower parts. It is formed of a plurality of inclined fins arranged in parallel in the front-rear direction, and transports and sorts the processed material and some grains that fall from the rear part of the handling room receiving screen 10 and the dust exhaust port 11. It is configured as follows. Moreover, the one indicated by the reference numeral 19 is a swinging shelf 12 connected to the processing material sorting body 18.
It is also a strorack as a processing material sorting body supported over the entire width of the swing shelf 12, and is formed of a plurality of saw-toothed fins arranged in parallel in the width direction of the swinging shelf 12. It is designed to sort out processed materials. Further, in the opening between the grain sliding body 15 and the partition plate 16, which is below the grain sorting body 18, grains that have slid on the grain sliding body 15 or fallen from between the fins of the grain sorting body 18 are provided. A grain sieve serving as a grain sorting body 20 for sorting grains is supported over the entire width of the swinging shelf 12 with a gap provided between the starting end and the grain sliding body 15. This grain sorting body 20 is formed of a plurality of inclined fins 20a that are rotatably supported on the machine body side and are arranged in parallel in the front-rear direction. By reciprocating the fins (not shown) and rotating all the fins at the same time, the openings between the fins are opened and closed as shown by solid lines and chain lines in FIG. Further, below the starting end of the swinging shelf 12, a winnow 21 is mounted on a shaft and has a plurality of blades and rotates in the direction shown by arrow A in the figure to create a sorting wind. An air passage 22 oriented toward the grain sorting body 20 is formed between the starting end and the lower part of the sorting body 20 . The sorting air is blown in the direction of the swinging shelf 12 through this air passage 22, and the opening provided between the starting end of the grain sorting body 20 and the grain sliding body 15 has this sorting air. A mesh sorting net serving as a sorting body 23 through which wind can pass is stretched over the entire width of the swinging shelf 12.

A wind direction adjusting plate 24, the details of which are shown in FIG. 3, is provided in the air passage 22 through which the selected air passes. That is, a pair of left and right guide plates 25 are provided in the air passage 22.
is fixed horizontally close to the left and right frame side plates, and the wind direction adjustment plate 24 is formed into a plate shape that spans the width of the machine, and its lower end is slidably supported in the long hole 26 of the guide plate 25. It is pivotally supported by arm 27. On the other hand, an operation plate shaft 28 is rotatably supported by the left and right frame side plates and has a fin 20a at the end of the grain sorting body 20 fixed thereto.
A fan-shaped operation plate 29 is fixed, and one free end of the operation plate 29 and the arm 27
The lower end of is connected to the wire 30 by a wire 30. Each fin 20a of the grain sorter 20 is connected to a pin 20b at its lower end by a connecting member (not shown), so that all the fins 20a swing simultaneously. The operation plate 29 is for rotating and adjusting the fins 20a and the wind direction adjustment plate 24 at the same time, and includes a bolt 31 with a knob and a long hole 3.
2, and by loosening the bolt 31, the rotation can be adjusted between the two positions shown by the solid line and the chain line in the figure, and it is fixed by the bolt 31 in the adjusted position. It is configured. Then, by rotating the operation plate 29 to the solid line position, all the fins 20a are moved to the third position.
At the same time as the openings between the fins 20a become narrower as they fall down to the solid line position in the figure, the wind direction adjusting plate 20 is pushed by the wire 30 and the elastic force of the spring member (not shown)
rotates to the solid line position in Figure 3. In addition, the operation panel 2
9 to the chain line position, all the fins 20a stand up to the chain line position in FIG.
rotates to the position indicated by the chain line in FIG.

Further, below the grain sorting body 20, a first spiral conveyor 33 for conveying the fallen grains for collection is mounted on a shaft, and below the second material sliding body 17, the second spiral conveyor No. 2 spiral conveyor 34 that transports the products to be returned to the handling room 3
is mounted on a shaft. The reference numeral 35 is an axial suction fan that sucks light straw waste etc. from the processed material sorted on the processed material sorters 18 and 19 and discharges it to the outside of the machine. It is located above the processing material sorting body 19 and is mounted on a shaft between the left and right frame side plates.

The operation of the threshing machine configured as above will be explained. The grains threshed by the handling teeth 5 of the handling barrel 6 fall through the mesh of the handling chamber receiving screen 10 along with some straw waste, and those that have fallen onto the grain sliding body 15 are sent to the sorting body 23. Glide towards. Further, the grains that have fallen onto the grain sorting body 18 fall onto the grain sorting body 10 from between the fins of the grain sorting body 18 due to the swinging of the swinging shelf 12. In this way, the sorting body 23
The grains that have fallen onto the grain sorting body 20 are sorted by the swinging of the swinging shelf 12 and the sorting wind blown from the air passage 22 by the winnowing 21, and then the grains are separated from the grain sorting body 20.
The grains fall onto the No. 1 spiral conveyor 33 between the mesh No. 3 and the fins 20a of the grain sorter 20, and are conveyed and collected. On the other hand, processed materials such as straw waste, ear cuts, kagimata, and twig stalks generated during threshing are stored in the handling room 3.
After being conveyed through the interior, the grains fall from the dust outlet 11 onto the processing material sorter 18, join with some of the straw waste mixed in the grains, and are processed by the swinging of the swinging shelf 12. It is transferred onto the material sorter 19. The processed materials transferred on the processed material sorters 18 and 19 are sorted by the swinging of the swinging shelf 12, the sorting air from the winnowing machine 21, and the suction air from the suction fan 35, and some of the grains are The grains fall onto the grain sorter 20 and are sorted and collected. Also, for light straw and dust, use the suction fan 3.
5, it is sucked in and discharged outside the machine. The processed material remaining as a result of sorting, the so-called second material, falls from between the partition plates of the material sorting body 19, slides on the second material sliding body 17, and falls onto the second spiral conveyor 34.
It is transported and returned to the handling room 3. This second item joins the processed item being transported in the handling chamber 3, and the sorting process is repeated.

In the threshing sorting work carried out as described above, when the quality and quantity of the processed material generated during threshing are in the standard state, when the operation plate 29 is set to the chain line position and fixed with the bolts 31, the grain sorting body 20 All the fins 20a stand up, and the openings between the fins 20a become wider. At the same time, wire 3
When the wind direction adjustment plate 24 is pulled at 0 and occupies the position indicated by the chain line in FIG. Therefore, among the sorting winds from the winnowing machine 21, the main sorting wind passing below the wind direction adjustment plate 24 passes below the grain sorting body 20.
It is blown up into the article sorting path, and the wind direction adjustment plate 2
Most of the secondary sorting wind passing above the grain sorting body 4 is blown below the grain sorting body 20. The remaining sorting air passes through the mesh of the sorting body 23 and passes through the processing material sorting body 18.
As a result, the above-mentioned sorting is carried out.

Next, if the amount of processed material increases due to the type of threshing culm or dry/wet conditions, or if there are many twig stalks and weeds mixed in the processed material, rotate the operation plate 29 to the solid line position. , fins 20a of the grain sorter 20
falls down and the opening between the fins 20a narrows, and at the same time, the wind direction adjusting plate 24 is rotated to the solid line position in FIG. The upper part of the adjustment plate 24 is considerably narrower than the lower part. Therefore, the wind direction adjustment plate 24
Almost all of the strong secondary sorting wind passing above is blown onto the material sorting body 18 through the mesh of the sorting body 23, and together with the narrowing of the opening of the grain sorting body 20, the material sorting body 18 At the same time, the rough sorting ability of grains and processed materials increases, and the processed materials are sent below the processed material sorter 19, increasing the amount of second reduction. As a result, the same sorting performance as in the standard state described above is ensured, and grain leakage and collection are not hindered by the processed material.

As is clear from the above explanation, according to the present invention, in the sorting device for a threshing machine, the processed material sorting body 1
A plurality of fins 20a of the grain sorting body 20, which is located below the grain sorting body 8 and suspended in the rocking shelf 12, are formed so as to be adjustable in angle, and the starting end of the grain sorting body 20 and the rocking shelf 12 are connected to each other. A ventilation-enabled sorting body 23 is stretched between the grain sliding body 15 and a swingable wind direction adjustment plate 24 is provided in the air passage 22 toward the starting end of the grain sorting body 20, so that the processing can be carried out. Under threshing conditions where a large amount of grain is generated and many twig stalks are included in the processed material, the opening of the grain sorter 20, which is wide in the standard state, is narrowed, and the grain sorter 20 is wide in the standard state.
Since the sorting air that was directed downward can be directed downward to the processed material sorter 18, the sorting of the processed material is promoted and the amount of the second product reduced increases, resulting in the same level of superiority as in the standard state. This makes it possible to ensure high sorting performance, and the effect is extremely large. In addition, since the wind direction adjustment plate 24 and the grain sorting body 20 are connected in an interlocking manner, there is no risk of erroneous operation.

[Brief explanation of drawings]

1 to 3 show an embodiment of a sorting device for a threshing machine according to the present invention, FIG. 1 is a sectional view of a threshing machine implementing this, FIG. 2 is a sectional view of the main part of the sorting device, and FIG. FIG. 3 is a side view of the grain culm sorting body, the wind direction control plate, and the operating parts thereof. DESCRIPTION OF SYMBOLS 1... Threshing machine, 12... Rocking shelf, 15... Grain sliding body, 18... Processed material conveyance body, 20... Grain sorting body, 20a... Fin, 21... Kara winnow, 22...
...Air duct, 23... Sorter, 24... Wind direction adjustment plate.

Claims (1)

[Claims] 1 A plurality of fins arranged in parallel in the transfer direction of the sorted material 2
A grain sorting body 20 equipped with 0a is installed below the processed material sorting body 18 in the swinging shelf 12, and
A sorting body 23 that can be ventilated is suspended between the starting end of the grain sorting body 20 and the grain sliding body 15 of the rocking shelf, and the inclination angle of the grain sorting body a is adjustable.
A swing-adjustable wind direction adjustment plate 24 is provided in the sorting air passage 22 toward the starting end of the grain sorter 20 to divide it into two vertically, and the air direction adjustment plate 24 and the fins 20a are adjusted. The board 24 falls down and the fin 2
This sorting device for a threshing machine is characterized in that it is connected to operate in synchronization with a standard position where the fins 20a are open and a position where the adjustment plate 24 is directed upward and the fins 20a are narrow.