JPH0866118A - Feeder for grading wind of thresher - Google Patents

Abstract

PURPOSE: To enable the concentrated delivery of a grading wind to a required site, reduce the strength of a wind force in the width direction of a grading part, enable the good grading over the whole area in the width direction of the grading part and improve grading performances. CONSTITUTION: This feeder for a grading wind of a thresher is constituted by housing a winnower fan 17 in a winnower case 16, forming an air intake port 19 and an air delivery port 18 in the winnower case 16, taking in air from the air intake port 19 into the winnower case 16 following the driving and rotation of the winnower fan 17 so as to deliver the air from the air delivery port 18 to the rear rocking grader 20, constituting the air delivery port 18 of an upper air delivery port 18a on the upper side at the rear end of the winnower case 16 and a lower air delivery port 18b located in front of the upper air delivery port 18a on the lower side of the winnower case 16 and further separately installing a wind direction plate 21 for leading the air from the upper air delivery port 18a to a grading space above a grain sieve 8 for grading the first yield in the rocking grader 20 and a grading space below the grain sieve 8 in the rocking grader 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention accommodates a Karato fan in a Karato case, and forms an air intake port and an air outlet in the Karato case so that the air can be driven by the rotation of the Karato fan. The present invention relates to a sorting wind supply device for a threshing device, which is configured to take in air from the intake port into the Kara sono case and send the air from the air outlet to a rear swing sorting device.

[0002]

2. Description of the Related Art Conventionally, in the above-mentioned sorting air supply device for a threshing device, only one air outlet has been formed at the rear end of the Karako case (for example, Japanese Unexamined Patent Publication No. 6-1786).
No. 10).

[0003]

According to the above-mentioned conventional structure, since only one air outlet is formed at the rear end of the Karako case, the air blown from the air outlet is vertically moved. , The perforated transport plate that extends rearward from the rear end of the Glen pan, and the front end of the chaff sheave that connects to the rear end of the perforated transport plate. It was difficult to do.

Further, in the sorting air supply device of this type of threshing device, the air intake ports are formed on the left and right outer plates to be substantially concentric with the rotary shaft core of the Karako fan, and the air taken in from the air intake ports. The amount of air that is sent out from the air outlet along the outer side plate to the left and right central portions is reduced, and in the vicinity of the air outlet, the air volume is high in both left and right side portions and low in the central portion. The wind distribution tends to be uneven in the width direction. In such a situation, according to the above-described conventional configuration, the air outlet is formed only at the rear end of the Karako case, so that the distance from the air outlet to the swing sorting device is not sufficiently large. The sorting wind is supplied to the rocking sorting device with a non-uniform distribution in the left-right width direction, and as a result, the wind force in front of the central part of the Kara Minoh fan becomes weaker than the wind force in front of the left and right sides, and It was difficult to reliably sort by wind in front of the section.

An object of the present invention is to be able to intensively send the sorting wind to a required place, reduce the strength of the wind force in the width direction of the sorting unit, and perform good sorting over the entire width direction of the sorting unit. It is intended to provide a sorting air supply device for a threshing device that can perform the above-mentioned operation and improve the sorting performance.

[0006]

A feature of the present invention is that an air outlet is provided at an upper air outlet on the upper rear end side of the Karako case and at a lower side of the Karano case rather than the upper air outlet. A lower air outlet located at the front, and air from the upper air outlet and the lower air outlet is separated from the grain sieve for sorting the most objects in the swing sorting device, and a sorting space above and below. There is an air flow guide that leads to each of the selection spaces.

[0007]

According to the above construction, the air outlet is composed of the upper air outlet and the lower air outlet, and the wind direction plate as described above is provided. Therefore, for example, from the rear end of the Glenpan to the rear. It is possible to intensively send the sorting air to a location where the sorting air is required, such as the extending hole transporting plate and the front end of the chaff sheave connected to the rear end of the apertured transport plate.

Further, since the lower air outlet is located in front of the upper air outlet, the distance from the lower air outlet to the rocking sorting device becomes long, so that the lower air outlet is located near the lower air outlet. Even if the air volume is uneven in the left-right width direction, such as a large amount of air on both left and right sides and a small amount in the center, the sorting air sent out from the lower air outlet will reach the swing sorting device. The air volume tends to be uniform in the left-right width direction.
The sorting can be performed as reliably as the wind on both the left and right sides, and the strength of the wind force in the width direction of the sorting unit can be reduced, and good sorting can be performed over the entire width direction of the sorting unit.

[0009]

Therefore, the sorting wind can be intensively sent to a required place, and the strength of the wind force in the width direction of the sorting wind sent from the lower air outlet can be reduced to reduce the sorting unit. Since good sorting can be performed over the entire width direction, it was possible to provide a sorting wind supply device of a threshing device capable of improving sorting performance.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an all culm throw type combine will be described below with reference to the drawings. FIG. 1 shows a vertical side surface of a threshing device mounted on an all-culm throw type combine. This threshing device has a threshing part A for threshing the cut culms sent by the feeder 1 and a threshing part A. It is composed of a sorting section B for sieving and air-sorting the processed products from.

The threshing section A is composed of an axial flow type handling drum 2 having spiral handling teeth 2A, a concave 3 stretched below the handling barrel 2, and the like. By driving and rotating, the cut grain culms are treated and the discharged straws are discharged from the rear part. Moreover, the processed material obtained by the treatment of the cut grain culm is adapted to leak from the concave 3.

The sorting section B receives the processed material leaked from the front part of the concave 3 and transfers it to the rear side of the Glen pan 4,
Perforated transport plate 5 that allows straw dust and the like among the processed products transferred from Glen Pan 4 to be lifted up by wind force from below and grain and the like to be leaked, and is connected to perforated transfer plate 5 to roughly select the processed products. The chaff sheave 6 to be performed, the rear sheave 7 that roughly sorts the processed products in succession to the chaff sheave 6, and the grain sheave 8 for sorting the grain of the processed product that has leaked from the perforated transport plate 5 and the chaf sheave 6 An oscillating sorting device 20 provided in an oscillating sorting case 9,
It is configured by the Karato 10 as a sorting wind supply device that generates a wind force for sorting the wind.

The grain that has leaked from the grain sieve 8 as the first grain is collected by the first grain collecting section 11 provided below the grain sieve 8 and then a grain tank (not shown).
Will be stored at. On the other hand, the second products such as the unbranched paddy that did not leak in the Glensieve 8 and the branched hulls that leaked from the rear sheave 7 were recovered by the second product recovery unit 12 provided below the rear sheave 7. After that, it is re-threshed by a second reducing device (not shown) and returned to the sorting section B. In addition, dust such as straw chips and rice husks is discharged to the outside of the machine by the wind force from the Karato.

The front part of the rocking / sorting case 9 is slidably supported by rollers 13 pivotally supported on the left and right side surfaces thereof and a guide rail 14A provided on a side plate 14 of the thresher. The rear part of the swing selection case 9 is swingably supported by a side plate 14 of the threshing device via an eccentric cam type drive mechanism 15. That is, the swing selection case 9
Is an eccentric cam type drive mechanism 1 for the entire swing selection case 9.
By oscillating with an oscillating locus having an up-down component and a front-rear component by a driving force from 5, the processed material is transferred backward while sieving and sorting.

The Karato 10 has a Karato fan 17 housed in a Karato case 16 and air intake ports 19 formed on both the left and right sides of the Karato case 16 to the outside of the left and right outer plates 14, An air outlet 18 extending from the left outer plate 14 to the right outer plate 14 is formed at the rear end portion of the Karako case 16, and air is introduced into the Karako case 16 from the air intake port 19 as the Karoh fan 17 is driven and rotated. It is configured so that it is taken in and sent from the air outlet 18 to the swing selecting device 20 at the rear.

The Karasou fan 17 is constructed by arranging four flat blades radially on the rotary shaft. The air outlet port 18 is composed of an upper air outlet port 18a on the upper side of the rear end of the Karako case 16 and a lower air outlet port 18b located on the lower side of the front end of the Karano case 16.
An air flow direction plate 21 is provided to separately guide air from a and the lower air outlet 18b from the grain sieve 8 for sorting the most objects in the swing sorting device 20 to the upper sorting space and the lower sorting space.

According to the above construction, the air outlet 18 is composed of the upper air outlet 18a and the lower air outlet 18b, and the wind direction plate 21 as described above is provided. Alternatively, the sorting wind can be intensively delivered to a portion where the sorting wind is required, such as the front end of the chaff sheave 6 connected to the rear end of the perforated transport plate 5.

Further, since the lower air outlet 18b is located in front of the upper air outlet 18a, the distance from the lower air outlet 18a to the rocking / sorting device 20 becomes long. Even if the air volume is uneven in the left-right width direction in the vicinity of, such that the air volume is large in both the left and right sides and small in the central part, the air volume becomes uniform in the left-right width direction by the time it reaches the swing sorting device 20. Easy, Karano fan 17
It is possible to reliably perform the sorting by the wind in the front of the central part of the same as the sorting by the wind on the left and right sides. further,
As described above, since the air volume is likely to be uniform in the left-right width direction before reaching the swing sorting device 20, even if the rotation speed of the Karako fan 17 is increased to increase the air quantity of the selection wind, Only the wind force in front of the left and right sides does not become too strong, and the number 3 is caused by the excessive increase in the wind force on the left and right sides of the sorting unit B when the number of rotations of the Karako fan 17 is increased as in the conventional case. It is possible to prevent the grain from being discharged from the machine due to scattering. As a result, the strength of the wind force in the width direction of the sorting unit B can be reduced, and good sorting can be performed over the entire width direction of the sorting unit B.

[Other Embodiments] The present invention may be applied to a self-removing combine.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

1 is a vertical side view of the threshing device.

[Explanation of symbols]

 8 Glen Sieve 16 Kara-mino Case 17 Kara-mino Fan 18 Air Outlet 18a Upper Air Outlet 18b Lower Air Outlet 19 Air Inlet 21 Air Vane

Claims (1)

[Claims] 1. A Karano fan (1) in a Karako case (16).
7) is housed, and an air intake (19) and an air outlet (18) are formed in the Karako case (16), and the air intake ((17)) is driven to rotate and the air intake ((17)) is formed. 19) A sorting wind supply device for a threshing device configured to take in air into the Kara Minoh case (16) and send it out from the air outlet (18) to the rear swing sorting device (20). Then, the air outlet (18) includes an upper air outlet (18a) on the upper side of the rear end of the Karako case (16) and an upper air outlet (18a) on the lower side of the Karano case (16). 18
a) a lower air outlet (18b) located in front of a), and air from the upper air outlet (18a) and the lower air outlet (18b) is fed to the rocking sorting device (2).
The sorting wind supply device of the threshing device, which is provided with the wind direction plates (21) for separately guiding the uppermost sorting space and the lower sorting space from the grain sieve (8) for sorting most items in 0).