JP2001275470A - Threshing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a threshing machine that has simplified and cost-saved constitution by making the wind speed and the blowing direction of the winnowing wind controllable with a single operation. SOLUTION: In a threshing machine that is constituted so that the wind speed and the wind direction blown from the winnower may be controllable, a controlling plate is fitted at the lower part of the winnower outlet so that the path of the winnowing wind may be narrowed and the wind direction is made controllable from the upward posture that changes the blowing direction upward to the lower posture that forms the exhaust wind port on the bottom face of the winnowing path, and further a controlling device is equipped so that the amount of threshed mixture to be treated is detected with the sensor and the posture of the controlling plate is changed on the basis of the detection.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for adjusting a wind speed and a blowing direction of a sorting wind discharged from Karamin in a threshing apparatus mounted on a combine or the like, for example.

[0002]

2. Description of the Related Art In adjusting the wind speed and the blowing direction of the sorting wind discharged from Karino, in the related art, in order to adjust the wind speed of the sorting wind, the air volume is adjusted at an intake port or an exhaust port of Karamino. A plate is provided to adjust the amount of sorting air supplied to the sheave case.In addition, to adjust the direction of air blowing, a wind regulating plate is provided near the exit of Karino, and the angle of this wind regulating plate is changed to change the exhaust direction For example, as disclosed in Japanese Patent Application Laid-Open No. Hei 7-274696, a threshing apparatus having both of these technologies has been considered.

[0003]

However, in the above-mentioned conventional technique, means for adjusting the wind speed discharged from Karamin is provided with:
Means must be provided for adjusting the direction of air flow, which complicates the structure and increases the cost. Met.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and the wind speed of the sorting wind from Karino and the adjustment of the blowing direction of the sorting wind can be adjusted by a single operation. The purpose is to provide a threshing device with reduced cost.

[0005]

The structure, operation and effect of the first aspect of the present invention are as follows.

The present invention according to claim 1 is a threshing apparatus in which the wind speed and the blowing direction of the sorting wind discharged from Karino are adjustable, and the sorting wind path is narrowed and the blowing direction is reduced. From the upper position to change upward,
An adjusting plate capable of changing the swinging posture to a lower position forming an exhaust port on the bottom surface of the sorting air passage is provided at a lower part of the exit of Karamino.

According to the first aspect of the present invention, by swinging the adjusting plate provided at the lower part of the exit of Karino, the sorting air path can be narrowed by the adjusting plate in the upward posture. Thus, the wind speed can be increased, and the sorting wind can be changed upward by positioning the adjustment plate in the sorting wind path. In the downward position, the air outlet is formed at the lower part of the exit of Karino, so that a part of the sorted wind exhausted from Karino is exhausted from this air outlet, so that the wind speed can be reduced. In other words, only by swinging the adjusting plate up and down, it is possible to adjust the wind speed and the blowing direction of the sorting wind from Karamino.

[Effect] Therefore, it is only necessary to provide a means for operating the adjusting plate for adjusting the wind speed of the sorting wind and the blowing direction of the sorting wind, and each adjustment can be made simply by operating the adjusting plate. A threshing device capable of adjusting the wind separation by a simple operation could be constructed at low cost.

The structure, operation and effect of the second aspect of the present invention are as follows.

[0010] According to a second aspect of the present invention, in the first aspect, the amount of the processing object supplied to the sorting unit is detected by a sensor, and the adjusting plate is positioned based on the detection result. A characteristic configuration is provided with control means for changing.

According to the second aspect of the present invention, an adjusting plate capable of adjusting the wind speed of the sorting wind from Karino and the blowing direction of the sorting wind is supplied to the sorting unit. By controlling based on the amount of the processed material, the wind speed and the blowing direction of the sorting wind according to the amount of the processed material can be obtained, and these adjustments can be adjusted only by providing the attitude changing means with respect to the adjusting plate.

[Effect] Therefore, it is possible to obtain not only the wind speed and the blowing direction of the sorting wind discharged from Karamin according to the amount of the processing material supplied to the sorting unit, but also the wind speed and the blowing direction of the sorting wind. The operating posture changing means can be configured to be inexpensive.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a threshing device for mounting a combine to which the present invention is applied. This threshing device,
A handling cylinder 2 for threshing the harvested grain culm conveyed by the feed chain 1 is pivotally supported in a handling room 3, and a receiving net 4 for subjecting the threshed processed material to a leakage treatment below the handling cylinder 2 is stretched. Threshing section A and sieving and wind sorting while oscillating and transferring the threshed product backwards, and the sorted product is the best (grain)
And a sorting unit B that separates and collects the second product.

The sorting section B comprises a grain pan 5 for transferring the processed material leaked from the front of the receiving net 4 to the rear while sorting the specific gravity into grains and straw chips, and a processed product from the Glen pan 5 and the receiving net 4. 6 that sieves and sorts the grain, Glen sieve 8 that sieves and sorts the grains and wind-sorts with the sorting wind from Karamino 7, and sorts the processed material from the rear end of the handling room into straw waste and recoverable processed material. The straw rack 9 and the like are provided on the sheave case 10, respectively, and the sheave case 10 is configured to swing back and forth with a constant stroke. The processed material selected from the sieve case is Glen Sieve 8
The first thing collection part 11 which collects the grain which has leaked from the tank and carries it out to a storage tank (not shown), and the second thing such as stabbed paddy or branch-attached paddy falling from behind the sheave 8 It is sorted and collected by a second-item collection unit 12 which is reduced to the sorting side by the second-item collection unit 13 and reprocessed. These first-item collection unit 11 and second-item collection unit 12, 7 is played in the sorting case 17. Dust floating on the sheave case 10 is discharged to the outside by the suction air of the dust blower 14. Further, the exit of Karino 7 is formed in a trumpet shape toward the rear of the fuselage by the fan guide 16 and the lower surface of the sorting case 17.

Next, the swing of the adjusting plate 15 will be described.
As shown in FIG. 1 to FIG. 3, a rectangular hole 18 is formed on the slope on the Karino 7 side where the sorting case 17 is formed to protrude upward between the Karamino 7 and the first material collecting section 11. The adjustment plate 15 having a fan-shaped bottom surface is positioned in the hole 18 by tilting the adjustment plate 15 so that the adjustment plate 15 swings along an arc.
Is swingably supported on one side of the hole 18 on the side of Karaoke 7. That is, the support portion 1 is attached to the sharp end of the adjusting plate 15.
5a is formed, and a supporting portion 1 is provided on one side of the
5 a is supported so as to be able to swing up and down around the axis in the lateral direction of the machine body. By swinging the adjusting plate 15 around the axis, the adjusting plate 15 is positioned substantially parallel to the lower surface of the surrounding sorting case 17. From the neutral posture, the upper end of the arc of the adjusting plate 15 is located above the lower surface of the surrounding sorting case 17, or the upper end of the arc of the adjusting plate 15 is located below the lower surface of the surrounding sorting case 17, and the hole 18 is opened. The swinging posture can be changed to the lower posture.

As shown in FIG. 4, the support 1
A transmission motor 20 which is an example of a posture changing means is linked to 5a via a wire or the like, and a sensor S for detecting the thickness of the processed material on the chaff sheave 6 as data of the threshing amount is provided above the chaff sheave 6. A control device 21 for automatically controlling the transmission motor 20 based on the detection result.
Is provided. By driving the transmission motor 20 by the control device 21, the adjusting plate 15 is moved in an upper position (FIG. 2-B) and a lower position (FIG. 2-C) and in parallel with the lower surface of the surrounding sorting case 17. It is set so that the posture is changed in three stages of the neutral posture (FIG. 2-A) where 15 is located.

That is, the control device 21 sets an upper set value with a large threshing processing amount on the chaff sheave 6 and a lower set value with a small threshing processing amount on the chaff sheave 6 with respect to the measurement value detected by the sensor S. If the threshing amount detected by the sensor S is determined to be larger than the upper set value by the control device 21, the support portion 15a is
Is rotated to change the posture of the adjustment plate 15 to the upper posture,
If the threshing amount detected by the sensor S is detected by the control device 21 to be smaller than the lower set value, the supporting portion 15a is rotated by the transmission motor to change the attitude of the adjusting plate 15 to the lower attitude. When the detection of the threshing amount by the sensor S is between the upper set value and the lower set value, the attitude of the adjusting plate 15 is changed to the neutral attitude.

Therefore, when the amount of the processed material between the upper set value and the lower set value is appropriate, the effect of the adjusting plate 15 is hardly exhibited because the material is positioned substantially parallel to the lower surface of the surrounding sorting case 17. In the neutral posture, when the posture is changed from the neutral posture to the upward posture due to an increase in the amount of the processed material, the rear end of the adjustment plate 15 is swung upward to narrow the screening air path, thereby reducing the screening wind. As the wind speed can be increased, the wind sorting performance is improved to perform sufficient wind sorting even for a large amount of processed material that leaks, and the sorting wind blows the grain backwards as if it were more upward than in the neutral position. The third loss can be suppressed by not being performed. Also, when the posture is changed from the neutral posture to the downward posture due to a decrease in the amount of processed material, an air outlet is formed by the opening of the hole 18 below the exit of the Karamin 7 and a part of the sorting wind from the Karamin 7 When the air is exhausted, the sorting wind is weakened, so that even if the amount of the processed material is small, it is difficult to blow off, and the third loss can be suppressed. In addition, since the adjusting plate 15 was arranged above the space formed between the lower surface of the sorting case 17 and the lower surface of the sorting portion B, the adjusting plate 15 was swung down. Therefore, it is not necessary to newly form a space for swinging the adjusting plate 15 and the space can be saved.

[Alternative Embodiment] In the above embodiment, the driving of the adjusting plate 15 is automatically controlled by the detection of the sensor S. However, the adjusting plate 15 is swingably driven by a manual operation. Is also good.

In the above embodiment, the adjustment plate is placed in the upper position,
Although the swing posture is set to be changed in three stages of the neutral posture and the downward posture, the swing posture is not limited to three stages, and the swing posture may be changed in four stages, five stages, or steplessly. .

In the above-described embodiment, the amount of the processing object deposited on the chaff sheave 6 is detected and the adjusting plate 15 is changed in the swinging posture. However, the displacement of the holding rail of the feed chain 1 or the waste straw chain is changed. May be detected as the amount of the processed material supplied to the sorting unit B, and the adjustment plate 15 may be swung based on the detection result.

[Brief description of the drawings]

FIG. 1 is a longitudinal side view of a threshing apparatus.

FIG. 2A shows a neutral position of the adjusting plate. FIG. 2B shows an upper position of the adjusting plate. FIG. 2C shows a lower position of the adjusting plate.

FIG. 3 is a diagram showing a mounting structure of an adjustment plate.

FIG. 4 is a diagram showing a swinging posture changing unit of an adjustment plate.

[Explanation of symbols]

 7 Karino 15 Adjustment plate B Sorting section S Sensor

Claims (2)

[Claims] 1. A threshing apparatus configured to adjust the wind speed of a sorting wind discharged from Karino and the blowing direction, wherein the sorting is performed from an upper position in which a sorting wind path is narrowed and a blowing direction is changed upward. A threshing apparatus characterized in that an adjustment plate capable of changing the swinging posture to a lower position forming an air outlet on the bottom surface of the air passage is provided at a lower part of the exit of Karamino. 2. The threshing apparatus according to claim 1, further comprising control means for detecting the amount of the processed material supplied to the sorting section by a sensor and changing the attitude of the adjusting plate based on the detection result.