JPH0863A - Threshing rocking sorter - Google Patents

Abstract

PURPOSE:To improve the grading effect of the chaff sieve which receives the threshed grains and vibration-grading them and of the grain sieve on its lower side in the threshing and vibration-grading shelf. CONSTITUTION:A sub-air outlet 8 is opened at the upper part of the main air outlet 6 to feed the main grading wind duct 5 to guide the grading wind from this sub-wind outlet 8 through the sub-wind duct 7 to the top end of the chaff sieve of the vibration-grading shelf 1. The wind dividers 10, 9 are set to the main outlet 6 and between the main outlet 6 and the sub-outlet 8 so that the end faces on the rear side of these dividers 12, 11 are inclined stepwise.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing rocking / sorting device and can be used as a combine threshing device.

[0002]

2. Description of the Related Art A swinging sorting shelf of a combine performs sorting of grains under the threshing chamber while receiving the threshing and swinging and transferring the grains under the threshing chamber. In the chaff sheave that performs this swinging and sorting, since a large amount of grain is received in the front portion, sorting is difficult to perform, delay of grain removal easily occurs, and efficient sorting is difficult to maintain.

[0003]

According to the present invention, an oscillating sorting rack 1 for receiving grain-removing grains and oscillatingly transporting them for sorting is leaked from the chaff sieve 2 to the lower side of the chaff sieve 2. It has a Glensieve 3 which receives the sorted matter and sorts the grains while swinging, and below the swinging sorting rack 1, sorting wind blown out from the Karato 4 is placed under the Glensieve 3. The main air blowing port 6 for guiding to the main sorting air passage 5 and the sub air blowing port 8 for guiding to the sub sorting air passage 7 under the chaff sheave 2 are provided. A plurality of stages of the wind splits 9 and 10 are provided, and the rear end faces 11 and 12 of each of the wind splits 9 and 10 are formed in a staircase with an inclination to the rearward and downward direction. On the rear side, the front end of a guide plate 13 having a forward downward slope is opposed to the front end of the Glensive 3, and the rear end face 12 of the lower windbreak 10 is provided. The configuration of the threshing oscillating sorting device consisting to face on top 受樋 14 of the main sorting air passage 5 bottom.

[0004]

[Operations and effects of the invention] The threshing leaked from the threshing chamber is received by the rocking sorting shelf 1 and is rocked and transferred,
Grains are sifted and sorted by chaff sieve 2 and Glen sieve 3. The sorting wind blown from the Karato 4 through the main air blowing port 6 and the sub air blowing port 8 winds the main sorting air passage 5, the sub sorting air passage 7 and the like to wind-seal the grains leaked from the sorting shelves 1. . The sorting wind in the sub-sorting air passage 7 is guided by the guide plate 13 or the like and chaffed.
The front end of the chaff sheave 2 is blown up, and the grain removed on the upper surface of the chaff sheave 2 is selected by air, and the front end of the chaff sieve 2 is leaked to the front end of the gren sieve 3 without falling onto the Glen sieve 3. If there is a grain flowing down on the upper surface of the guide plate 13 of the section, this is selected.

Further, the grains that flow down the guide plate 13 are
The wind split 9 is guided downward along the rear end face 11 of the wind split 9 on the front side, further guided by the rear end face 12 of the wind split 10 in the lower stage, and is dropped down to the first trough 14. The main blowing port 6 flowing down from each of the rear end faces 11 and 12 is wind-selected by the sorting wind blown toward the main sorting wind passage 5. In this way, the sorting wind in the sub-sorting air passage 7 blown out from the sub-ventilation port 8 intensively blows and lifts the grain-removed grains swingingly transferred over the front portion of the chaff sheave 2 to swing-sorting. The effect can be enhanced, and when there is a grain that flows down beyond the guide plate 13 on the lower side of the sub-selection air passage 7 to the front side, the rear end face 11 and the lower stage of the wind split 9 on the upper stage from this guide plate 13 Since the wind is blown through the rear end face 12 of the wind splitting 10 and the main blowing port 6 is blown out to select the wind, and the grain is most received by the trough 14, it is possible to improve the selection efficiency. At the same time, it is possible to prevent the grains from entering the Karato 4 through the blower ports 6, 8 and the like.

[0006]

Example A combine threshing device 15 has a threshing chamber 16 axially mounted on a threshing chamber 18 by means of a front and rear sling barrel shaft 17, and holds a grain culm at a grain culm transfer port along one side of the threshing chamber 18. A feeding chain 19 is provided for transporting the seeds, and a grain culm that has been harvested by the harvesting device 20 in front of the vehicle body and transported by the transport device 21 is supplied and threshed. Reference numeral 22 is a front supply port, 23 is a rear discharge port, and 24 is a threshing net stretched along the lower side of the threshing chamber 18.

A culm chamber 25 and a dust chamber 26 are formed at the rear side of the threshing chamber 18, and the culm chamber 25 receives the threshing sludge discharged from the feed chain 19 and receives a rear machine. An culm device 27 for discharging to the outside is provided, and a suction dust collector 28 is provided in the dust chamber 26. The swing sorting shelf 1 is provided below the threshing chamber 18 and the dust removing chamber 26, and is supported so as to be swingably driven with respect to the threshing machine frame. In addition, below the rocking sorting shelf 1, the Kara sou 4 and the main / sub sorting air passages 5 and 7, as well as the first trough 14 and the second trough 29 are arranged.

Reference numeral 30 is a control stand, 31 is a cockpit, 32 is a grain tank for picking up and storing the grains threshed by the threshing device 15, and 33 is a culm cutter for shredding the culms. E is an engine. In the rocking sorting shelf 1, a transfer plate 34 having a feed protrusion is arranged below the threshing net 24, and an inclined plate 35 is arranged at a constant interval from the end of the transfer plate 34 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 34 and the straw waste discharged from the discharge port 23 while swinging and transferring. At the end of the chaff sheave 2, a straw rack 36 is disposed below the dust chamber 26 to discharge the straw waste backward while swinging the straw waste. 3 is Glensi
In this case, the grain is leaked and sorted by receiving the sorted product leaked from the chaff sieve 2.

Karato 4 is provided under the transfer plate 34,
Open the main blower port 6 toward the main selection air passage 5 on the rear side, and
The sub air outlet 8 is opened toward the sub sorting air passage 7, and the fan 37
The compressed air is blown out from these blower ports 6 and 8 by the rotation of the air blower, and is sucked by the suction dust collector 28 from the main sorting air passage 5 and the sub-selling air passage 7 through the sorting gap portion of the swing sorting shelf 1. It is what is run as.

A wind split 9 is provided between the main air outlet 6 and the auxiliary air outlet 8.
The rear end surface 11 of the wind split 9 is a rearward and downward inclined surface, the upper plate 38 extends so as to slightly project rearward, and the lower plate 39 extends rearwardly of the upper plate 38, and -The guide plate 13 at the front end of the sleeve 3 is opposed to the rear side of the rear end face 11. The guide plate 13 is appropriately lower than the rear extension surface of the upper plate 38 by a distance, and does not contact the upper end portion or the rear end face 11 of the upper plate 38 even when the swing selection shelf 1 swings back and forth. Is configured as follows.

A sub-ventilation port 8 is formed between the upper plate 38 and a guide plate 40 which faces the upper side, and the distance between the upper plate 38 and the guide plate 40 is wide on the Karoh 4 side and the sub-selection air passage. 7
The sides are gradually narrowed so as to become narrower, and the air is blown faster. The sub-sorting air passage 7 is formed between the guide plate 13 integrated with the swing sorting shelf 1 and the guide plate 41 provided on the lower surface of the end of the transfer plate 34 so as to be gradually narrowed. The sorting wind guided by the transfer plate 3
4 is blown up above the swing selection shelf 1 through a gap 42 between the front end of the No. 4 and the inclined plate 35 at the front end of the chaff sheave 2 facing the rear side. Further, between the lower end edge of the inclined plate 35 and the upper end edge of the guide plate 13, there is provided a gap portion 43 opened from the sub-selection air passage 7 to the upper surface of the Glensive 3.
Is formed, and the sorted material leaked from the space 43 is guided onto the Glensive 3.

In this way, the sorting wind blown out from the sub air outlet 8 is guided to the interval portion 42 through the sub sorting air passage 7 by increasing the wind speed, so that the air pressure blown up above the interval portion 42. The grain-removed grains sent by the transfer plate 34 onto the gap 42 are floated up here, and straw debris and the like are easily blown off to the rear portion of the chaff sheave 2, so that the grains are easily leaked and shaken. The dynamic transfer / sorting action is performed quickly and smoothly.

A windbreak 10 and a wind guide plate 44 are formed in the main air outlet 6, and the front end of the wind guide plate 44 is formed from the front end 45 of the upper windbreak 9 and the front end 46 of the lower windbreak 10. In the rear position as well, the wind receiving area from the Karato 4 side by the lower plate 39 of the wind split 9 is widened to increase the amount of wind force sent between the wind split 9 and the wind guide plate 44. In this way, it is configured to improve the wind contact along the Glen sieve 3 in the main selection air passage 5. The rear end portion of the air guide plate 44 is also set in front of the lower end edge of the rear end face 11 of the upper wind split 9 so that the grains flowing down on the rear end face 12 are not disturbed.

The rear end face 1 of the wind splits 9 and 10 of each of these stages
Both 1 and 12 are formed in a staircase shape as a rearward descending slope, and the rear end face 12 of the lowermost stage is most visible on the gutter 14. In FIG. 4, the difference from the above example is that the air guide plate 4
The tip end portion 51 of 4 can be turned up and down about the shaft 50,
The tip end portion 51 is rotationally adjusted to adjust the wind direction or the wind force distribution. The air guide plates 44 are provided in a plurality of stages, and when strengthening the wind force with respect to the front part of the Glensive 3, the tip 51 is rotated upward (A) to move the gutter 14 to the most grab plate 52. To increase the wind force, rotate the tip 51 downward (B),
Further, when it is desired to appropriately increase the vertical wind force, the tip end portion 51 of the vertical wind guide plate 44 can be rotated to the opposite sides (C) to adjust the wind direction according to the threshing selection state. .

In FIG. 5, the difference from the above example is that the change in the inclination angle of the chaff sheave 35 and the change in the vertical angle of the air guide plate 44 at the rear end of the main air outlet 6 are linked by a wire 47 or the like. Then, when increasing the efficiency by opening the interval of the chaff sheave 35 from the standard opening degree, the upward angle of the air guide plate 44 is increased and the main selection air passage 5 is blown to the front portion of the Glen sieve 3. The wind force is increased to accelerate the grain leakage sorting on the Glen sieve 3.

The chaff sheave 35 may be configured so that the inclination angle can be changed only at the front portion. 48 is each inclined plate 35
An arm for changing the inclination angle of the armature and a return spring 49.
Each inclined plate 35 is pivotally supported by the side frame portion of the rocking sorting shelf 1, and the steeper the inclination angle, the wider the front-rear distance becomes, and the threshing sorted matter is more likely to leak. Further, the air guide plate 44 is rotated around the shaft 50 only at the rear end portion, but the rear end side may be vertically moved by vertically rotating with the entire length as a single plate.

On the other hand, in the case of threshing when there are a lot of straw wastes, twigs, etc., contrary to the above, the angle of the inclined plate 35 is loosened from the standard position to make it difficult for the grains to leak and the downward direction of the wind guide plate 44. The angle is increased to strengthen the wind force blowing to the lower part of the main selection air passage 5.

[Brief description of drawings]

1] Partly enlarged side view

[Figure 2] Side view

FIG. 3 is a plan view.

FIG. 4 is a side view showing another embodiment and a partial operation view thereof.

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

[Explanation of symbols]

 1 Swing Selection Shelf 2 Chaff Sheave 3 Glen Sieve 4 Kara Minoh 5 Main Selection Air Duct 6 Main Air Vent 7 Sub Selection Air Duct 8 Sub Air Vent 9 Air Winding 10 Air Winding 11 Rear End Face 12 Rear End Face 13 Guide Plate 14 1 Guard gutter

Claims (1)

[Claims] 1. An oscillating sorting shelf (1) for sorting while swinging and receiving grain-removed grains, oscillates by receiving a sorted material leaked from the chaff sieve (2) below a chaff sieve (2). While having a grain sieve 3 for sorting grains, this swing sorting shelf 1
On the lower side, there is a main blower port 6 for guiding the sorting air blown out from the Karato 4 to the main sorting air passage 5 on the lower side of the Glen sieve 3.
A sub air blower port 8 for guiding to the sub air flow passage 7 under the chaff sheave 2 is provided, and a plurality of stages of air splits 9 and 10 are provided from the main air blower port 6 to the sub air blower port 8. Wind split 9,10
The rear end faces 11 and 12 are formed in a stepwise manner by inclining rearward and downward, and the rear end face 11 of the wind split 9 in the upper stage is provided with a guide plate 13 inclined forward and downward at the front end portion of the Glensive 3. A threshing swing sorting device in which the front end portions are opposed to each other and the rear end face 12 of the lower wind split 10 is seen above the first trough 14 at the bottom of the main sorting air passage 5.