JPH0862A - Threshing and vibration-grading machine - Google Patents

Abstract

PURPOSE:To improve grading effect in the front part of the chaff sieve which receives threshed grains conveyed from the conveying plate and grading the grains by rocking in the threshing and vibration-grading shelf. CONSTITUTION:This threshing and vibration-grading machine has the winnower 4; main grading wind duct 6 which guides the grading air flow from the main wind outlet 5 and winnows the grains leaking down from the chaff sieve 2; and the sub-grading wind duct 8 which guide the wind from the sub-wind outlet 7 above the main wind duct 5 to the top end of the chaff sieve 2 placed beneath the vibration-grading shelf 3 equipped with the conveying plate 1 receiving threshed grains and leak-grading the grain under rocking.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing oscillating sorting apparatus, which is effectively used in a threshing apparatus for combine harvesters.

[0002]

2. Description of the Related Art In an oscillating sorting shelf for selecting grains while swinging and transferring them after receiving combine grain removal, the start end side receives the grain removal. A transfer plate for rocking transfer is arranged, and a chaff sieve for selecting grains while rocking and transferring the grains removed by the transfer plate. For this reason, the amount of grain removed from the transfer plate on the upper surface of the chaff sheave is large and the layer becomes thick, so that it is difficult to perform the sorting, and the sorting is effectively performed as the grain is transferred to the end portion of the chaff sieve. It will be. Therefore, the present invention intends to improve the selection efficiency by effectively performing the selection at the starting end portion of the chaff sieve.

[0003]

The present invention is directed to a lower side of an oscillating sorting shelf 3 having a transfer plate 1 and a chaff sheave 2 for spilling and sorting grains while receiving the grain removal and oscillatingly transporting the grains. To Kara 4
And a main selection air passage 6 for guiding the selection air from the main air outlet 5 of the Karako 4 to select grains leaking from the chaff sieve 2, and a sub air outlet above the main air passage 5. 7 and a sub-selection air passage 8 that guides air from the chaff sheave 2 toward the starting end portion thereof.

[0004]

By the swinging of the swinging selection shelf 3, the threshing dropped from the threshing chamber is received by the upper surfaces of the transfer plate 1 and the chaff sheave 2 and transferred. Among these, the grain removal received on the upper surface of the transfer plate 1 is collectively inherited on the upper surface of the chaff sheave 2 at the terminal end, and from there, the chaff sheave 2 receives the swinging and sorting action.

At the start end of the chaff sheave 2, the grain removal is guided by the sub-sorting air passage 8 so that the grain removal is floated, and the grain removal is easily transferred and sorted. In this way, the sorted material that has been leaked and sorted by the chaff sieve 2 is sorted by the lower grain sieve and the like, and is sorted by the sorting wind guided through the main sorting air passage 6. In this way, the threshing sent from the upper surface of the transfer plate 1 to the upper surface of the chaff sieve 2 is blown up by the sorting wind guided from the subsidiary air blowing port 7 of the Karato 4 through the subsidiary sorting air passage 8, so that the threshing is performed. Even if the material delivery layer is thick, the transfer and sorting action is promoted, and efficient swing-sorting of grain removal can be performed.

[0006]

EXAMPLE A combine combine threshing device 9 has a threshing chamber 10 axially mounted on a threshing chamber 12 by means of a front and rear handling cylinder shaft 11, and holds a grain culm at a grain culm transfer port along one side of this threshing chamber 12. A cutting machine 1 in front of the vehicle body is provided with a feeding chain 13
The grain culm that has been mowed at 4 and transported by the transport device 15 is supplied and threshed. Reference numeral 16 is a front side supply port, 17 is a rear side discharge port, and 18 is a threshing net stretched along the lower side of the threshing chamber 12.

A culm chamber 19 and a dust chamber 20 are formed on the rear side of the threshing chamber 12. The culm chamber 19 receives the threshing culms carried by the feed chain 13 and the rear machine. An culm device 21 for discharging to the outside is provided, and a suction dust collector 22 is provided in the dust chamber 20. The swing selection shelf 3 is provided below the threshing chamber 12 and the dust discharge chamber 20 and is supported so as to be swingably driven with respect to the threshing machine frame. Further, below the rocking sorting shelf 3, the Karato 4 and the main and sub sorting air passages 6 and 8, as well as the first gutter 23 and the second gutter 24 are arranged.

Reference numeral 25 is a control stool, 26 is a cockpit, 27 is a grain tank for picking up and storing the grains threshed by the threshing device 9,
28 is a culm cutter for shredding culms. E is an engine. In the rocking sorting shelf 3, a transfer plate 1 having a feed protrusion is arranged below the threshing net 18, and inclined plates 29 are arranged at regular intervals from the end of the transfer plate 1 to the rear side. The chaff sheave 2 arranged in the above position is provided, and the grain is mainly sorted by leaking while receiving the grain removal transferred from the transfer plate 1 and the straw waste discharged from the culm 17 while swinging and transferring. At the end of the chaff sheave 2, a straw rack 30 is disposed below the dust chamber 20 to discharge the straw waste backward while swinging it. Reference numeral 31 denotes a Glensieve, which receives the sorted product leaked from the chaff sieve 2 and sifts down the grains.

Karato 4 is provided at the lower part of the transfer plate 1 and opens the main air blowing port 5 toward the rear side main selection air passage 6 and the sub air outlet 7 toward the sub selection air passage 8. When the fan 32 is opened, compressed air is blown from the blower ports 5 and 7 by the rotation of the fan 32, and the suction dust is discharged from the main sorting air passage 6 and the sub sorting air passage 8 through the sorting gap portion of the swing sorting shelf 3. The air is drawn as suction air from the machine 22.

A wind split 3 is provided between the main air outlet 5 and the auxiliary air outlet 7.
3, the rear end surface 34 of the wind split 33 is a rearward and downward inclined surface, and the upper plate 35 is extended so as to slightly project rearward,
The lower plate 36 extends rearward of the upper plate 35, and the guide plate 37 at the front end portion of the gren cive 31 faces the rear side of the rear end surface 34. The guide plate 37 is appropriately lower than the rear extension surface of the upper plate 35 by a distance, so that even if the swing selection shelf 3 swings back and forth, the upper end portion and the rear end face 34 of the upper plate 35.
It is configured not to come into contact with.

A sub-ventilation port 7 is formed between the upper plate 35 and a guide plate 38 facing the upper side, and the distance between the upper plate 35 and the guide plate 38 is wide on the Karoh 4 side, and the sub-selection air passage. 8
The sides are gradually narrowed so as to become narrower, and the air is blown faster. The sub-selection air passage 8 is formed between the guide plate 37 integrated with the swing selection shelf 3 and the guide plate 39 provided on the lower surface of the end of the transfer plate 1 so as to be gradually narrowed. The sorting wind guided by the blower is blown up above the swinging sorting rack 3 through a gap 40 between the front end of the transfer plate 1 and the inclined plate 29 at the front end of the chaff sheave 2 facing the rear side. are doing. Also, this inclined plate 2
Between the lower edge of 9 and the upper edge of the guide plate 37, a gap 41 is formed which opens from the sub-selection air passage 8 to the upper surface of the Glen sieve 31, and the sorted substances leaked from the gap 40 are separated. It is configured to guide onto the Glensive 31.

In this way, the sorting air blown out from the sub air outlet 7 is guided to the spacing portion 40 in the sub sorting air passage 8 by increasing the wind speed, so that the wind pressure that blows up the spacing portion 40 upward. The cereals that are sent out on the transfer plate 1 onto the gap 40 are floated here, and straw debris and the like are easily blown off to the rear part of the chaff sheave 2, so that the grain is easily leaked and shaken. The dynamic transfer / sorting action is performed quickly and smoothly.

The main blower port 5 has two upper and lower wind splits 42, 43.
The front end 44 of the wind split 42 is located behind the front end 45 of the upper wind split 33 and the front end 46 of the lower wind split 43, and the bottom plate 36 of the wind split 33 makes the Karako. The wind receiving area from the 32 side is widened so that the wind force between the wind splits 33 and 42 is increased to improve the wind contact along the Glen sieve 31 in the main sorting wind passage 6. Is configured.

Further, the rear end surfaces 34, 47, 48 of the wind splits 33, 42, 43 of each of these stages have a backward descending inclination,
It is formed in a staircase shape, and the rear end face 48 at the bottom is the most gutter 23.
Looking up. In FIG. 4, the difference from the above example is that the inclined plate 29 at the front of the chaff sheave 2 has a double structure, and a slit-like fumarolic passage 49 is formed by narrowing the interval between the lower part and the upper part. The fumaroles 49 are arranged at intervals so that the grains cannot leak, and facilitate the upward passage of the sorting wind. The front end portion of the chaff sheave 2 has a large amount of grain removed, but the leakage of grains, straw debris, etc. flows down the upper surface of the inclined plate 29 on the front side and does not flow down the fumarole 29. There is little resistance to the blowing of the sorting air on the path 29, and the transfer sorting on the chaff sieve 2 is improved.

In FIG. 5, the difference from the above example is that the sheave spacing 50 of the inclined plate 29 at the front of the chaff sheave 2 is set so that the upper portion becomes narrower toward the lower portion in order to increase the chaff sheave. By increasing the wind speed that blows to the upper surface of Bu
Improve the transfer and sorting effect. The inclined plate 29 has a triangular cross section. In FIG. 6, the difference from the above example is that a wind split 51 is provided in the sub-selection air passage 8 and the selection wind blown out from the sub-ventilation port 7 is separated by the wind split 51 into the chaff sieve 2.
The flow is split and guided to the space 40 at the front end and the space between the inclined plates 29 on the rear side. Since the wind split 51 is configured to swing integrally with the swing selection shelf 3, the wind split guide position in the sub-selection air passage 8 is constant, and stable split air distribution is performed regardless of swing. You can Also, the rear end surface 52 of the wind split 51 is
As the rearwardly downward inclination, the upper surface of the Glensive 31 is looked into, and the gap 40 receives the leaked grains and guides it downward to the Glensive 31 side.

[Brief description of drawings]

1] Partly enlarged side view

FIG. 2 is a side view of the threshing device.

FIG. 3 is a plan view thereof

FIG. 4 is a side view showing another embodiment

FIG. 5 is a side view showing an embodiment of another part.

FIG. 6 is a side view showing an embodiment of another part.

[Explanation of symbols]

 1 Transfer Plate 2 Chaf Sheave 3 Swing Sorting Shelf 4 Kara Minoh 5 Main Blower 6 Main Sorting Airway 7 Sub-Blower 8 Sub-sorting Airway

Claims (1)

[Claims] 1. Under the rocking and sorting shelf 3 having a transfer plate 1 and a chaff sieve 2 for leaking and sorting the grains while receiving the grain-removing and swinging and transporting the grains, the Karato 4 and the Karato 4 4 main air outlet 5
A main sorting air passage 6 for guiding the sorting air from the chaff sheave 2 to select the grains leaking from the chaff sheave 2, and a starting end portion of the chaff sheave 2 from the auxiliary air blowing port 7 above the main air passage 5. And a sub-sorting air passage 8 that guides air to the threshing swing sorting device.