JPH046517Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a swing sorting device for a stationary type, combine harvester, or harvester-mounted threshing machine.

(b) Prior Art Conventionally, a threshing machine transfers and sorts materials leaked from a receiving screen in a handling room using a swinging sorter installed in a sorting air passage and having a sorting screen and a second sorting section. This is already known, and the first flow plate provided at the bottom of the sorting net is fixed to the frame of the swinging sorter.

(c) Problems to be solved by the invention In the known oscillating sorter, the end of the sorting net and the top of the first flow plate oscillate together during the oscillating sorting operation, and the distance between them is always constant. This had the disadvantage that grains, etc., would fall from between the end of the sorting net and the top of the first flow plate and fall into the first receiving gutter, which only receives grains, reducing sorting performance. .

(d) Means for solving the problem In the present invention, when the oscillating sorting body is oscillating while rising in the direction of conveying the objects to be sorted, the movable valve plate attached to the uppermost part of the flow plate is connected to the sorting net. Wind separation is carried out by blowing up the sorting air away from the terminal end, and when the oscillating sorter returns and swings, the movable valve plate is brought closer to the terminal end of the sorting net so that the second item falls first into the receiving gutter. The system is designed to prevent air pollution, and is configured with a sorting air path that blows from the bottom of the handling room over the first and second receiving gutter using a fan installed below the handling room, In a threshing machine equipped with an oscillating sorting body equipped with a sorting net facing above the first receiving gutter and a second sorting section facing above the second receiving gutter, leakage material below the sorting net is allowed to flow down to the first receiving gutter. A movable valve plate is rotatably mounted on the top of the first flow plate, and the movable valve plate is connected to the machine frame so that the oscillating sorting body can move the objects to be sorted. It is characterized in that when it swings in the transfer direction, it moves away from the end of the sorting net, and when it swings in the opposite direction, it approaches the end of the sorting net.

(E) Effect Materials to be sorted that leaked from the receiving net in the handling room fall into the swinging sorter, and the materials that leaked from the sorting net are screened during the fall and straw waste is removed. It fell into the gutter,
When the oscillating sorting body rises and oscillates toward the rear, the materials remaining on the sorting net move toward the second sorting section, and at this time, the movable valve plate moves as the oscillating sorting body swings. As the separation net swings back and forth, the distance between the end of the sorting net and the movable valve plate changes, and the wind force and direction of the sorting air that passes through this distance changes intermittently, forming an almost layered structure, resulting in the second sorting. The material to be sorted moving to the section can be well dispersed and screened, and straw waste etc. can be prevented from falling into the receiving gutter during return swinging.

(F) Example An example of the present invention will be explained with reference to the drawings.
Reference numeral 1 denotes a handling cylinder supported by a handling cylinder shaft in a handling chamber 2. A receiving net 3 is stretched from the bottom of the handling cylinder 1 to the side opposite to the handling opening, and is connected to a blower fan 5 and a suction type. The oscillating sorting body 7 installed in the sorting air passage constituted by the dust exhaust fan 6 includes a transfer flow plate 8 facing directly below the receiving net 3, and an extending flow plate 8 extending from the end thereof facing directly above the receiving gutter 9. A lower sorting path formed by a second sorting section 13 consisting of a stroke rack facing onto the second receiving gutter 12 from a corrugated plate 13a extending from the upper end of the first flow plate 11 to the second sorting net 10 and the like; Dust outlet 14 provided at the end of the handling room 2
A corrugated non-porous transfer plate 15 faces onto the sorting net 10 from directly below the screen, and a stroke rack 1 extends from the terminal end of the transfer plate 15 and is oriented toward the dust removal fan 6 in side view.
It consists of an upper sorting channel consisting of 6 class, and a handling room 2.
At the rear of the culm discharge port 17, there are disposed a No. 4 funnel 18 and a straw conveyance chain 20 and a straw conveyance belt extending over the top plate 19a of the dust sorting chamber 19 located at the rear thereof.

The lower part of the first flow plate 11 is bent downward, and the base of the movable valve plate 21 is rotatably attached to the upper part by a support shaft 21a.
An arm 21b protruding downward from the end of the support shaft 21a has a pin 2 attached to the rear end of a plate-shaped link 23 whose front end is pivotally supported on the machine wall 22 by a fulcrum pin 22a.
3a, they are rotatably connected.

Further, the swinging sorter 7 is supported at its rear and middle portions so as to be swingable back and forth by a pair of left and right swinging arms 24, and an arm protruding from a support shaft integral with the swinging arms 24 in the middle portion. 25 is interlocked and connected via a rod 27 to a crank arm 26 which is integral with the helical shaft.

When the above-mentioned threshing machine is mounted on a combine harvester platform, when the grain culm harvested and conveyed by the pre-processing device is transferred to the pinch rail and the starting end of the feed chain 28, the grain side is transferred from the supply port 29 to the handling chamber 2. The grains and small straw waste generated in the handling room 2 leak from the receiving net 3 to the transfer flow plate 8 of the lower sorting path and transfer to the sorting net 10. Here, the grains, etc. that leaked are subjected to sieve sorting and wind selection by the main sorting wind, and are subjected to flow plate sorting while flowing down the first flow plate 11, and then flow into the first receiving gutter 9. The removed grains are carried out of the machine by the first spiral 9a and then put into the grain tank by the grain lifting cylinder, and the grains remaining on the sorting net 10 are transferred to the second sorting section 13 via the transfer plate 13a. Further, the waste is air sorted and sieved, and the second material is thrown into a reduction passage formed between the handling chamber 2 and the side wall by a second reduction thrower 30 provided on the side, and is returned onto the transfer flow plate 8. .

Further, the dust discharged from the dust inlet 14 is transferred to the stroke rack 16 while being sorted by specific gravity by the transfer plate 15, and then transferred by the stroke rack 16 to the part of the dust exhaust fan 6 facing the suction port 6a. It undergoes sieve sorting and wind selection while being shaken and transported.
The leakage material joins the material to be sorted on the lower second sorting section 13, and the straw waste is sucked and discharged outside the machine by the dust exhaust fan 6.

During the oscillating sorting by the oscillating sorting body 7, the objects to be sorted remaining on the sorting net 10 are removed as shown by the chain line in FIG. When it is thrown and energized and swings back, it moves toward the second sorting section 13, but since the swinging sorting body 7 is swinging at high speed, it changes from the layered state at the end of the sorting net 10. Transition. On the other hand, the arm 21b of the movable valve body 21 is tilted backward due to the movement of the swinging sorting body 7 to the rear and the fact that the lower part is held in a fixed position by the link 23. When the swinging sorting body 7 swings back forward while descending, the upper part of the movable valve body 21 approaches the end of the sorting net 10 as shown by the solid line, thereby separating the movable valve body 21 and the end of the sorting net 10. Since the distance between the two is intermittently expanded or contracted, the wind force and direction of the sorting wind passing through the gap change, and as a result, the second sorting section 1 can be cleaned without leaking from the sorting net 10.
It is possible to promote the dispersion and winnowing of the material to be sorted in step 3, and also to prevent straw waste from falling into the receiving gutter 9 during the return swinging.

Furthermore, when there is a difference in the dryness and humidity of the material to be sorted, or when there are different types of grains such as rice and wheat, the link 23 is divided into front and rear parts as shown in FIGS. The movable valve plate 2 is partially polymerized, and one of the holes 23b for wheat, the holes 23c for wet rice, and the holes 23d for dry rice is selected and connected with pins 23e.
1 can be adjusted.

(g) Effects of the invention Since the invention is configured as described above, when threshing grain is oscillatedly sorted by the oscillating sorter 7, the sorting net 10
The objects to be sorted remaining on the top are thrown from the end of the sorting net 10 to the second sorting section 13 by the swinging sorting body 7 swinging back and forth, and during this time, the end of the sorting net 10 and the movable valve plate 21 are thrown. The interval between and the direction of the sorting air change intermittently, thereby promoting the dispersion and air sorting of the sorted material.

Furthermore, when the swinging sorting body 7 swings back, the movable valve plate 21 rotates forward and approaches the end of the sorting net 10, so that the objects to be sorted fall first into the receiving gutter 9. Therefore, it is possible to reliably prevent poor sorting.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is an enlarged side view of the main parts, Figure 2 is a vertical cross-sectional view of the same as above, Figure 3 is a sectional view of the expansion/contraction adjustment part of the link, Figure 4
The figure is a vertical side view of the threshing machine. 1... handling cylinder, 3... receiving net, 7... rocking sorter,
9... First receiving gutter, 10... Sorting net, 11... First flow plate, 12... Second receiving gutter, 13... Second sorting section,
21...Movable valve plate, 22...Machine wall, 23...Link.

Claims (1)

[Scope of utility model registration request] A ventilation fan 5 installed below the handling room 2 forms a sorting air path that blows over the first receiving gutter 9 and the second receiving gutter 12 from the lower part of the handling room 2. In a threshing machine equipped with a swinging sorting body 7 equipped with a sorting net 10 facing the top and a second sorting section 13 facing above the second receiving gutter 12, the leakage material is collected from the first receiving gutter below the sorting net 10. A first flow plate 11 is provided for wind selection while flowing down the first flow plate 11, a movable valve plate 21 is rotatably mounted on the upper part of the first flow plate 11, and the movable valve plate 21 is connected to the machine frame. A threshing machine characterized in that the swing sorting body 7 moves away from the end of the sorting net 10 when it swings in the direction of conveying the sorted material, and approaches the end of the sorting net 10 when it swings in the opposite direction. Oscillating sorting device.