JPH0446087B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sorting device in a threshing machine. Conventionally, straw waste that has formed into a ball in the handling chamber at the end of the handling drum in a threshing machine does not fall from the dust outlet and is carried around as the handling drum rotates, eventually causing the handling drum to become overloaded. There was also a problem that the dust exhaust port was clogged, which adversely affected the threshing process.

The object of the present invention is to solve the above-mentioned problems by preventing the straw debris from clogging at the end of the handling drum, thereby stabilizing the threshing process.
For this reason, the following technical measures were taken.

That is, the handling chamber 1 is provided with a handling cylinder 3 that is rotatably supported on two shafts and a dust exhaust port 4 that opens downward at the terminal end of the handling cylinder 3. A swinging sorting shelf 5 is provided across the grain, and a cross-flow suction sorting fan 6 is provided at the upper rear of the sorting shelf 5 in a lateral direction perpendicular to the handling barrel axis with approximately the same width as the width of the sorting shelf 5. In the machine, the rear wall 1 of the handling room 1
A suction air passage A is formed between A and the cross-flow suction sorting fan 6 located rearward in the axial direction of the handling cylinder, covering the upper part of the swinging sorting shelf 5, and communicating with the sorting shelf 5. A cover body 7 is provided on one side of the cover body 7, which is located below the shaft 2 of the handling cylinder 3, and has one end communicating with the handling chamber 1 and the other end communicating with the suction air. The sorting device is constructed by providing a regulating body 8 which receives the upward rotational wind blowing from the handling cylinder 3 from above while communicating with the passageway.

One implementation of this invention will be described based on the drawings.

The handling cylinder 3 is provided with a large number of handling teeth 3a, and is configured by a shaft 2 suspended between the front and rear walls of the handling chamber 1 so as to be rotatable in the direction of the arrow 2, and a receiving net 9 is stretched along the lower outer circumferential surface of the handling cylinder 3. It is set up. A feed chain 10 is provided along the handling opening of the handling room 1.

The dust exhaust port 4 is provided as a notch opening from the feed chain 10 side to the extra part in the direction toward the discharged culm tip at the terminal end of the net frame 9a on which the receiving net 9 is stretched. 11
is a culm discharge port opening in the rear wall surface 1a of the handling chamber 1.

The swinging sorting shelf 5 is provided so as to be swingable in the 2-axis direction via a swinging mechanism, and is configured by providing a chaff sheave 5a and a grain sheave 56 in two stages, upper and lower. 1
2 is a stroke rack.

The suction sorting fan 6 is constituted by a cross-flow fan provided over the left and right widths of the swinging sorting shelf 5, and is mounted on a shaft so as to be rotatable in the direction of the arrow H.

The cover body 7 covers the upper outer periphery of the suction sorting fan 6 and is provided so as to be inclined sequentially downward toward the handling chamber 1, and swings between the rear wall 1a of the handling chamber 1 and the front edge of the cover body 7. An opening RO communicating with the sorting shelf 5 is provided. Reference numeral 7a denotes a side plate connected to the cover body 7, which is provided in a downwardly inclined state.

The regulating body 8 is configured to have a predetermined width L on one side of the cover body 7 in the direction opposite to the dust exhaust port 4, and one end is fixed to the rear wall surface 1a of the handling chamber 1 while communicating with the handling chamber 1. The other end is provided to extend rearward and communicate with the suction air path A.

13 is a pressure fan, 14 is a first spiral, and 15 is a second spiral, and at the end of this transfer, a lifting device for returning and feeding the second product into the handling chamber 1 is provided.

16 is a discharge culm transfer device, and 17 is a discharge port.

In the configuration of the above example, the grain stem side is pinched and transferred by the feed chain 10, while the ear end side is threshed by the handling cylinder 3. In this process, the grains, straw waste, etc. that have fallen from the receiving net 9 and the dust outlet 4 are received by the swinging sorting shelf 5, and first, only relatively large straw waste is moved backward by the chaff sieve 5a. The suction air from the suction sorting fan 6 passes through the stroke rack 12 to the discharge port 1.
7 and is sucked out of the machine. The grain and straw that fell from the chaff sieve 5a is grain sieve 5a.
Under the sorting action, the grains fall to the top of the spiral 14 and are taken out of the machine as the first grain, and are separated from small straw waste.
The grains with stems (second product) fall onto the second spiral 15 and are returned to the handling chamber 1 via the lifting device for processing. In such a series of threshing and sorting work, straw waste may stagnate in the handling chamber 1 at the end of the handling drum 3, or it may form into dumplings and not fall from the dust outlet 4 and may be rotated around. However, in this case, the handling cylinder 3
Since the wind generated by the rotation of the fan 6 is caught by the regulating plate 8 and prevented from blowing upward, the wind stuck in this area is immediately converted into the suction wind generated by the suction sorting fan 6. So the fan 6
As it is attracted to the side, a suction wind force is generated, and this suction wind power suctions and removes the straw debris and relatively large straw debris stagnant in the handling chamber 1 on the terminal side of the handling cylinder 3. The straw waste from the swinging sorting rack 5 is discharged from the machine through the sorting fan 6 through the discharge port 17.

Therefore, it is possible to prevent the straw waste from forming into a ball at the end of the handling cylinder and clogging the handling chamber 1.

The threshed waste culm is transferred from the feed chain 10 to the waste culm transfer device 16 and discharged outside the machine. At this time, the transferred culm is transferred while its tip side is guided in sliding contact with the guide body 7 or the side plate 7a,
The grains that are being cut during the culm fall and fall onto the swing sorting shelf 5 through the openings along the guide body 7 or the slope of the side plate 7a and are processed again, thereby reducing grain loss. There will be a decrease.

Since this invention has taken the technical means as described above, during the threshing operation, near the end of the handling cylinder 3,
The straw waste that is stagnant in the handling chamber 1 can be suctioned and removed from the handling chamber 1 by using the wind generated by the rotation of the handling cylinder 3. In other words, the rotating wind from the handling barrel is caught by the regulating plate 8 without blowing upward, and tends to be trapped in this area, but it is immediately attracted to the suction wind caused by the suction sorting fan 6 and moves toward the fan 6. Since the suction wind force is directed toward This prevents the barrel 3 from being damaged due to overload, and as a result, the threshing and sorting action can be performed smoothly and favorably.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side sectional view, FIG. 2 is a plan sectional view of the main part, and FIG. 3 is a back sectional view of the main part. In the figure, reference numeral 1 is a handling chamber, 2 is an axis of a handling cylinder, 3 is a handling cylinder, 4 is a dust outlet, 5 is a swinging sorting shelf, 6 is a suction sorting fan, 7 is a cover body, 8 is a regulating body, A indicates the suction air path, and B indicates the opening.

Claims (1)

[Claims] 1 The handling chamber 1 is equipped with a handling cylinder 3 rotatably supported on two shafts and a dust exhaust port 4 opening downward at the terminal end of the handling cylinder 3, which extends from the bottom of the handling chamber 1 to the rear in the axial direction of the handling cylinder. A thresher is provided with a swinging sorting shelf 5, and a cross-flow suction sorting fan 6 is installed at the upper rear of the sorting shelf 5 in a horizontal direction that is approximately the same width as the sorting shelf 5 and perpendicular to the handling barrel axis. A suction air passage A is formed between the rear wall 1a of the handling chamber 1 and the cross-flow suction sorting fan 6 located rearward in the axial direction of the handling cylinder, covering the upper part of the swinging sorting shelf 5. At the same time, a cover body 7 is provided with an opening RO communicating with the sorting shelf 5, and one side of the cover body 7 has a shaft 2 of the handling cylinder 3.
A sorting device is provided with a regulating body 8 located at a lower position, one end of which communicates with the handling chamber 1, and the other end of which communicates with the suction air passage A, and receives the upwardly rotating wind blowing from the handling cylinder 3 from above. Device.