JPS6218200Y2 - - Google Patents

Description

[Detailed description of the invention] A swinging sorter is provided at the bottom of the handling chamber to swing the grains toward the discharge side of the grain culm. In a threshing machine that is opened so as to face a return passage formed by the outer circumferential surface of the receiving net, the inner surface of the machine wall along the axial direction of the handling cylinder, and the upper surface of the swinging sorter so as to face the grain swinging transfer direction. The grains discharged from the second material transport thrower hit the front machine wall of the threshing machine, rebound and fly in the opposite direction to the above-mentioned reducing direction, and the grains are installed below the end of the handling chamber of the swing sorter The grains fell onto the dust transfer plate, were collected again in the No. 2 receiving gutter, and repeated the No. 2 reduction process, resulting in defects such as increased grain damage.

In view of the above-mentioned circumstances, the present invention has been newly devised in order to eliminate the drawbacks.In particular, the present invention has been devised in order to eliminate the drawbacks. A grain scattering prevention plate is provided in a substantially triangular space formed between the starting end of the feeding plate and the receiving net so as not to block the discharge port of the second object conveying thrower from the terminal end of the receiving net. This aims to provide a second material reducing device which can reliably prevent the grains discharged from the second material transport thrower from falling onto the dust transfer plate.

To explain one embodiment of the structure of the present invention shown in the drawings, 1 is a machine casing of a threshing machine, and on one side of the machine casing 1 there are a front machine wall 1a, a rear machine wall 2, and a receiving net. A handling room 4 is formed surrounded by
Inside, a handling cylinder 5 is pivotally attached to a handling cylinder shaft 5a that is mounted between the front machine wall 1a and the rear machine wall 2. 6
7 is a grain supply port formed on one side of the front part of the machine case 1 of the handling room 4, and 7 is a handling port of the handling room 4, and a feed chain 8 is provided along the handling port 7. is,
Continuously connected to this, a straw removal chain 9 is stretched upwardly from a straw removal processing section 10 at the rear of the machine casing. Sho 11
is a grain discharge port formed by opening the lower part of the rear machine wall 2. Further, 3b is an arcuate partition plate protruding from the inner surface of the receiving net 3 at the terminal end of the handling chamber 4, and the lower part of the receiving net 3 between the partition plate 3b and the rear machine wall 2 is connected from the handling opening 7. Approximately half the circumference is cut out and opened to form a dust inlet 12. On the other hand, a blower fan 14 is provided below the supply port side of the receiving net 3 to form a sorting air path that blows through the air sorting chamber 13 to the dust outlet 13a at the rear of the machine casing. A swing sorting body 15 is installed so as to swing back and forth. On the upper part of the oscillating sorter 15, facing the dust inlet 12, a part directly below the dust inlet 12 has a buffer plate such as a sponge adhered to the upper surface, and has a partition plate 16b in the front and back direction. A material receiving plate 16 is provided, and spokes 16a projecting toward the air selection chamber 13 are fixed to the rear end of the dust receiving plate 16. Further, below the dust receiving plate 16, there is a transfer sorting plate 17a facing above the first receiving gutter 17, a sorting net 17b and a second receiving gutter 1.
Stroll racks 18a facing above 8 are integrally fixed to the swing sorting body 15. A No. 1 receiving gutter 17 is provided below the front of the oscillating sorter 15, and a No. 2 receiving gutter 18 is provided below the rear.
Therein, a first spiral 17c and a second spiral 18b are supported by the machine casing 1, respectively. A second thrower 18c having a conveying cylinder 18d is connected to the end of the second spiral 18b. The direction in which the number thrower 18c throws the second number object is opposite to the direction in which the grains are transferred by the swinging sorter 15. In other words, the direction of throwing the second object is
The outer circumferential surface 3a of the receiving net, the inner surface of the machine wall 1b along the axial direction of the handling cylinder 5 on the opposite side of the handling port 7, and the swinging sorter 1
a space formed by the upper surface of the transfer sorting plate 17a of No. 5;
That is, it is configured to be directed toward the front wall 1a of the aircraft body via the second return passage 20. In the lower part of the second return passage, the terminal end of the space having a triangular cross section formed between the upper surface of the dust receiving plate 16 and the receiving net outer periphery 3a is the receiving net 3.
The fitting portion of the arcuate partition plate 3b is closed with a grain scattering prevention plate 21 attached by bolts 21a. The grain scattering prevention plate 21 has a shape that substantially fills the triangular space, and the sides thereof are connected to the discharge port 19.
It is designed so that it does not block the area.

Next, the operation of the present invention constructed as described above will be explained.

Grain culm supplied into the handling chamber 4 from the grain culm supply port 6 by the feed chain 8 is threshed by the rotation of the handling cylinder 5, and grains and small straw waste etc. leaked from the mesh of the receiving net 3 are removed. falls onto the transfer sorting plate 17a of the oscillating sorting body 15 installed below the receiving net 3. Then, due to the rubbing action accompanying the back-and-forth rocking motion of the rocking sorter 15, straw waste with a low specific gravity floats to the upper layer.
Grains with high specific gravity settle in the lower layer and are separated into two layers, while being transferred from the transfer sorting plate 17a to the rear sorting net 1.
7b, only the grains fall from the sorting net 17b onto the No. 1 receiving trough 17 and are carried out of the machine by the No. 1 spiral 17c. In addition, dust particles such as ear cuts, branch stalks, and straw waste are discharged from the dust outlet 12, and these dust particles fall onto the dust receiving plate 16 and are oscillated and transferred toward the wind selection chamber. , when reaching the top of the spoke 16a,
Here, the comparatively heavy panicles, stems, and some waste fall onto the straw rack 18a, where they are subjected to the crushing action and the straw waste is discharged outside the machine from the dust exhaust port 13a due to the wind selection effect by the pressure air. Then, the dust such as panicles and branches are collected in the second receiving trough 18, and further transferred to the second thrower 18c by the second spiral 18b, and by the rotation of this, the two are collected together with the discharge air from the discharge port 19. It passes through the return passage 20 and is thrown toward the front wall 1a of the aircraft body. At this time, the dust is transferred to the second spiral 18b.
While being transported by the dust collector and thrown by the blades of the thrower 18c, the twigs and spikes in the dust are separated into single grains and straw waste due to the impact of the spirals and blades. It is discharged in the same state. The grains and straw waste discharged from the discharge port 19 are dispersed in the return passage 20 by the discharge wind, and light objects such as straw particles fall onto the transfer sorting plate 17a at a position close to the discharge port 19, and the receiving net 3 The grains with a heavy specific gravity are thrown onto the inner surface of the front wall 1a of the aircraft body, and are further repelled by this, and some of them are directly onto the transfer sorting plate 17a. Other grains that fall and have a particularly strong force scatter backwards and hit the grain scattering prevention plate 21 that protrudes from the receiving net 3, are guided by this, slow down, and fall onto the transfer sorting plate 17a. , merges with leakage from the receiving net 3, is transferred as described above with the back and forth swinging movement of the transfer and sorting plate 17a, and is sorted on the sorting net 17b.

In this way, the present invention has a swinging sorter that swings and transfers grains toward the discharge side of the grain culm on the lower side of the handling chamber, and connects the discharge port of the second material transport thrower to the handling room. In a threshing machine that is opened so as to face a return passage formed by the outer circumferential surface of the receiving net, the inner surface of the machine wall along the axial direction of the handling cylinder, and the upper surface of the swinging sorter so as to face the grain swinging transfer direction. The above-mentioned discharge port is inserted from the terminal end of the receiving screen into the approximately triangular space formed between the outer periphery of the receiving screen and the starting end of the dust receiving plate provided below the terminal end of the handling chamber of the oscillating sorter. Since this device is equipped with a grain scattering prevention plate that protrudes without blocking the second thrower, out of the dust discharged from the discharge port of the second thrower,
Grains with heavy specific gravity are thrown against the inner surface of the front wall of the machine and are repelled, and then hit the grain scattering prevention plate and fall, so they fall onto the dust receiving plate of the oscillating sorter. This allows the second
It is possible to reduce the amount of grain reduction and to take out the grains to the first mouth without damaging them. In addition, the dust particles falling from the dust inlet overflow onto the dust receiving plate and flow back from the starting end onto the transfer sorting plate, so that good sorting can be achieved.

[Brief explanation of the drawing]

The drawings show an embodiment of a threshing machine equipped with the device of the present invention, in which Fig. 1 is a side sectional view of the entire threshing machine, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a sectional view of the entire threshing machine. The figure is a sectional view taken along the line BB in FIG. 1, and FIG. 4 is a perspective view showing the main parts. 1a...Front machine wall, 2...Rear machine wall, 15...
Oscillating sorter, 16... Dust receiving plate, 18...2
Number receiving gutter, 19...discharge port, 20...2nd return passage, 21...grain scattering prevention plate.

Claims (1)

[Scope of utility model registration request] The lower side of the handling chamber has a swinging sorter that swings and transfers the grains toward the discharge side of the grain culm, and the discharge port of the second material transfer thrower is connected to the outer peripheral surface of the receiving net in the handling room and the handling barrel. In a threshing machine that opens facing the grain oscillating transfer direction to a return passage formed by the inner surface of the machine wall along the axial direction and the top surface of the oscillating sorter, the outer periphery of the receiving net and the oscillating In the approximately triangular space formed between the starting end of the dust receiving plate provided below the end of the handling chamber of the dynamic sorter, the above-mentioned discharge port is not obstructed from the end of the receiving screen. A second object reducing device for a threshing machine, characterized in that a protruding grain scattering prevention plate is provided.