JPH06197622A - Sorting wind adjustment device for threshing wind selection device - Google Patents

Abstract

(57) [Summary] [Structure] The rocking sorting rack 11 is arranged below the handling chamber 7a, and the rear of the transfer rack 18 of the rocking sorting rack 11 is provided with a gren sheave 19 which rises backward and is inclined. A grain pan 20 through which grain leaks is arranged below the
A compressed air fan for sending sorting air from the front to the rear is arranged below the transfer shelf 18 of No. 1 and is located below the rear end of the transfer shelf 18 and above the front end of the Glen pan 20 of the rocking selection shelf 11. The wind control valve 32 that can increase or decrease the sorting air volume
To provide. [Effect] Since the amount of air blown to the front end portion of the Glensieve 19 in the swing selection shelf 11 is adjusted to be increased or decreased by the wind force control valve 32, the rear end portion of the transfer shelves 18 of the swing selection shelf 11 to the front end portion of the Glensieve 19 are adjusted. The sorting wind that has been adjusted to increase or decrease works properly on the sorted products that have been handed over to, and it reliably prevents stagnation and excessive scattering of cuts at the Glensieve 19 part, depending on the degree and dryness of the sorted products. Good selection is possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention can be used in a threshing wind selection section for combine harvesters and the like.

[0002]

2. Description of the Related Art In a threshing / sorting section for combine harvesters, etc., a compressed air fan is arranged below a transfer shelf of an oscillating sorting shelf for sorting threshed grains, and the sorting air is sent from the compressed air fan to the oscillating sorting shelf. ,
The grain-removed grains that are dropped and fed to the rocking sorting shelf are sorted by wind, but the sorting wind needs to be adjusted depending on the degree of drying of the sorted product or the amount of supply. And as a conventional technique aiming at such a thing, for example, JP-A-61-2
No. 02626 and Japanese Patent Application Laid-Open No. 61-111624.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
Japanese Patent No. 2626 discloses an attempt to improve the sorting while combining two compressed air fans provided below the sorting shelf with a transfer spiral to disperse the sorted items in the front-rear direction. However, the structure is complicated and the cost is high. Further, in Japanese Patent Laid-Open No. 61-111624, a compressed air fan is arranged below the transfer shelf of the rocking sorting shelf, and the sorting air sent to the rocking sorting shelf is provided above the air outlet of the compressed air fan. A configuration is provided in which a blast guide plate for adjusting the direction of air blown obliquely upward is provided. Therefore, although the configuration is simple and the direction in which the sorting wind is blown diagonally upward can be adjusted, the number of sorted items taken over from the rear end of the transfer rack to the front end of the Glensive can be increased or decreased. There was a problem that the adjusted sorting air could not be applied properly, and the sorting adaptability was low with respect to the degree and dryness of the sorted material.

Therefore, the present invention solves the above-mentioned drawbacks of the conventional apparatus, and has a simple structure, but it is succeeded from the rear end of the transfer rack to the front end of the Glensive in the rocking sorting rack. It is intended to improve the selection adaptability depending on the degree of drying and the degree of dryness of the sorted product by providing a configuration capable of accurately increasing and decreasing the sorting air volume to the portion.

[0005]

The present invention has taken the following technical means in order to solve the problems of the prior art. That is, the present invention is a threshing / winding device for wind-sorting threshing.
The rocking sorting shelf 11 in which the Glensieve 19 and the Straw rack 21 are sequentially arranged is arranged below the handling barrel chamber 7a in which the handling barrel 7 is installed, and behind the transfer rack 18 of the swing sorting rack 11. A grain sheave 19 which rises rearward and is inclined is provided, and a grain pan 20 through which grain leaks is arranged below the grain sheave 19, and a transfer rack 18 of the rocking sorting rack 11 is arranged.
A compressed air fan 12 for sending the sorting air from the front to the rear is arranged below the lower part of the swinging sorting shelf 11 at a position below the rear end of the transfer rack 18 and above the front end of the Glen pan 20. This is a configuration of a sorting wind adjusting device of a threshing wind selecting device, which is provided with a wind force adjusting valve 32 capable of increasing / decreasing the air volume.

[0006]

The transfer rack 18 of the rocking sorting rack 11 rocks, and the sorting wind generated by the compressed air fan 12 swings.
It is blown out toward and grain-sorting of grain and straw waste is performed. At that time, when the sorting air blown out from the compressed air fan 12 reaches the front end portion of the gran sheave 19 from the rear end portion of the transfer rack 18 in the swing sorting rack 11, the wind force control valve 32.
The wind power is adjusted to increase or decrease. Therefore, when the sorted matter is small or the drying is good, the wind control valve 32 is adjusted to the decrease side, and when the sorted matter is a large quantity or the drying is poor, the wind control valve 32 is adjusted to the increase side. It is possible to make good selections for each person.

[0007]

Embodiments of the present invention shown in the drawings will be described below. First, the configuration of the embodiment will be described. Figure 1
Shows a side view of the whole combine, in which the traveling device 2 is attached to the lower part of the frame 1 of the combine, the threshing part 3 and the sorting part 4 are placed on the upper part, and the mowing part 5 is placed in the front. It is provided. The grain culm cut by the reaping unit 5 in front of the machine body is conveyed to the threshing unit 3 by the grain culm conveying device 6.

FIG. 2 is a cut-away side view of the threshing section 3 and the sorting section 4. The threshing section 3 is composed of a handling cylinder 7, a handling net 8, a processing drum 9, a dust collecting net 10 and the like. The sorting unit 4 is composed of a rocking sorting shelf 11, a compressed air fan 12, a first gutter 13, a second gutter 14, a suction dust collector 15, and the like. Next, the swing selection shelf 11 will be specifically described below with reference to FIGS. 2 and 3. The left side frame 16 and the right side frame 1 of the swing selection shelf 11
7 has a length substantially equal to the length of the threshing portion 3 in the front-rear direction, and has a substantially rectangular planar shape. And
On the front side of the rocking sorting rack 11, there is arranged a transfer rack 18 having a transport rack formed on the upper surface with a downward slope for transferring the grains leaked from the upper handling net 8 to the rear side. In the middle part of the front-rear direction of 11, the sheave part of the gren-sieve 19 is arranged so as to rise rearward, and the sheave part of the gren-sieve 19 is arranged in the left-right direction. Similarly, the Glen pan 20 is rearwardly arranged so as to be inclined, and at the rear side portion of the swing selection shelf 11, a Straw rack 21 is arranged along the front-rear direction. Although not shown, the sheave portion of the Glen sheave 19 is rotatably supported by the left frame 16 and the right frame 17 by a shaft, and the inclination angle can be adjusted and the blowing direction of the sorting wind can be adjusted.

Grooves 22 are provided on both the left and right sides of the front side of the frame 1, and the swing selection shelf 11 is provided.
The rollers 23, which are respectively supported by the front side portions of the left frame 16 and the right frame 17, of the left frame 16 and the right frame 17, are fitted and supported in the groove portion 22 on the side of the frame 1, and at the rear portion of the frame 1 via a bracket 24. An oscillating rotary shaft 25 is rotatably installed, an oscillating arm 26 is fixed to the oscillating rotary shaft 25, and the tip end of the oscillating arm 26 is pivoted to the rear part of the oscillating sorting shelf 11 via a pin. Connected freely. Therefore, when the swing rotation shaft 25 is rotated by the pulley 27, the swing selection shelf 11 swings.

Next, the relationship between the rocking selection shelf 11 and the pressure air fan 12 will be described. The compressed air fan 12 optimizes the direction of the compressed air fan case 28, the air blower shaft 29, the air blower blades 30, and the selected air flow, and divides the selected air flow into upper and lower halves.
It is composed of 1 etc. Below the rear end of the transfer shelf 18 of the rocking selection shelf 11, and in the part where the upper selection air of the selection air divided by the air guide 31 is blown, that is, the transfer shelf 1
Below the rear end of 8 and above the front end of the Glen pan 20, a wind force control valve 32 for adjusting the amount of sorting air is provided.
The operation device is used to increase / decrease, or the wind force adjusting valve 32 is automatically increased / decreased in relation to the traveling speed of the machine body.

Next, FIG. 4 will be described. At the rear end of the transfer rack 18 in the swing sorting rack 11, the sorted object sensor 3
2a is provided to detect the layer thickness of the grain-removed grain that is transferred from the transfer rack 18 to the grain sieve 19 in the swing selection rack 11. The forward or reverse rotation of the wind force adjusting motor 33 causes the wind force adjusting valve 32 to pass through the adjusting device 34.
Is configured to be increased or decreased. When the detection information of the sorted object sensor 32a is input to a calculation control unit (not shown) including a CPU having a calculation unit and a register unit, a program memory, and a calculation memory, the control reference information and the detection are detected. The information is compared with each other, and a related control command signal for increasing / decreasing the wind force is output from the arithmetic control unit (not shown) to the wind force adjusting motor 33. Therefore, the sorted object sensor 32a
When a thick (or thin) grain layer thickness is detected, an arithmetic control unit (not shown) outputs a wind force increase (or decrease) adjustment command signal to the wind force adjusting motor 33, causing the wind force adjusting valve 32 to increase (or decrease). The decrease side)
When the detection layer thickness is within the range of the control reference value, the adjustment command signal is not output and the wind force adjusting valve 32 maintains the state as it is. It should be noted that the selected object sensor 32a is not limited to this embodiment as long as it can detect the magnitude of the threshing processing amount in the threshing unit 3, and the moisture sensor (for detecting the water content of the threshing ( (Not shown) may be provided to output the adjustment command signal by integrating the detection results of the sorted object sensor 32a and the moisture sensor.

Next, the operation will be described. When the combine travels in the harvested field, the culm is cut by the cutting unit 5,
The cut grain culm is sent to the rear threshing section 3 by the grain culm transporting device 6 and threshed by the handling cylinder 7 of the threshing section 3. In this way, the threshing that has been threshed is placed on the lower swing sorting shelf 11 below.
On the transfer shelves 18 and is transferred rearward by the transfer rack on the transfer shelves 18 and then to the rear Glensive 1
9. While being sent to the Straw rack 21, they are sorted by the sorting wind, and the straw waste is discharged from the suction dust collector 15 to the outside of the machine. In addition, the grain and the second grain are sorted and separated into the first grain and the second grain on the swinging Glensieve 19, and the grain falls to the first trough 13 and is taken out of the machine. The second one drops from the rear end of the Glensieve 19 to the lower second trough 14 and is returned to the handling barrel chamber 7a by a second grain elevator (not shown) for reprocessing. In addition, the grain-containing straws sent from the handling cylinder 7 to the processing cylinder 9 are threshed again by the processing cylinder 9 and fall from the dust net 10 onto the Glensieve 19 of the lower swing sorting shelf 11. , The first one and the second one are sorted and separated on the swinging Glensieve 19 into the first one and the second one.
No. 2 is dropped to No. 3, and No. 2 is dropped to No. 2 trough 14, returned to the processing cylinder 9 by No. 2 grain elevator (not shown) and reprocessed.

In this way, the grain and the straw waste are sorted by the sorting unit 4, and during the swing sorting of the swing sorting rack 11, the transfer rack 18 of the swing sorting rack 11 swings. At the same time, the sorting wind generated by the compressed air fan 12 is blown out toward the rocking sorting shelf 11 and is blown out from the compressed air fan 12 when the grain selection for grain / straw scraps is performed. The selected wind is divided into upper and lower parts by the wind guide body 31, and when the upper part of the divided wind is sent between the lower part of the rear end of the transfer rack 18 and the upper part of the front end of the Glen pan 20, wind adjustment is performed. Valve 32
Due to this, the air volume is adjusted to increase or decrease according to the sort.

When a small amount of the selected material or good drying is selected, the wind control valve 32 is adjusted to the decreasing side, and when a large amount of the selected material or poor threshing of the moist grain culm is poorly dried,
By adjusting the wind force control valve 32 to the increasing side, the air volume at the front end portion of the Glensieeve 19 in the rocking sorting shelf 11 is increased, and sorting can be performed while preventing backflow of culms from the rear to the front. However, good selection can be performed according to each case, and the selection adaptability is expanded.

Next, FIG. 5 will be described. A power transmission device 35 for transmitting power from a prime mover (not shown) to the compressed air fan 12 is provided with a rotation speed adjusting device 34 including a speed change pulley 26 for adjusting a rotation diameter, an adjusting cam 37, a rod 38, and an arm 39. In the configuration in which the rotation speed adjustment motor 41 is rotated in the forward or reverse direction, the rotation speed of the transmission device 35 is adjusted up or down, and the wind force of the compressed air fan 12 is adjusted up or down. A rotation speed sensor (not shown) is provided on the blower shaft 29 of the compressed air fan 12 so that the rotation speed of the blower blade 30 can be detected. The wind power adjusting valve 32 is configured to be increased or decreased through the adjusting device 34 by the forward or reverse rotation of the wind power adjusting motor 33. And
When the detection information of the rotation speed sensor (not shown) is input to the calculation control unit (not shown), the control reference information and the detection information are compared with each other, and the calculation control unit (not shown) changes the related wind power. The control command signal is output to the wind force adjusting motor 33. Therefore, when the rotation speed sensor (not shown) detects high-speed rotation (or low-speed rotation), the arithmetic control unit (not shown) outputs a wind force increase (or decrease) adjustment command signal to the wind force adjusting motor 33 to adjust the wind force. When the valve 32 is adjusted in relation to the increasing side (or the decreasing side) and the detected rotation speed is within the range of the control reference value, the adjustment command signal is not output and the wind force adjusting valve 32 maintains its state. To do. Therefore, when there are many sorted products, the wind control valve 32 is adjusted to the increase side, and when there are few sorted products, the wind control valve 32 is adjusted to the decrease side, so that good sorting can be performed. it can.

[0016]

Since the present invention is configured as described above, by operating the wind force adjusting valve 32, the amount of air blown to the front end of the Glensieeve 19 in the rocking sorting shelf 11 is increased or decreased. The increased or decreased adjusted sorting air properly acts on the sorted products carried over from the rear end portion of the transfer shelf 18 of the swing sorting shelf 11 to the front end portion of the Glensieve 19, and the cuttings stagnate at the Glensieeve 19 portion. In addition, it is possible to reliably prevent excessive scattering, and to perform good sorting according to the degree of drying and the degree of drying of the sorted material, thereby expanding the sorting adaptability.

[Brief description of drawings]

1] Overall side view

[Figure 2] Side view cut

FIG. 3 is a perspective view.

FIG. 4 is a cutaway side view of a main part.

FIG. 5 is a cutaway side view of a main part.

[Explanation of Codes] 1 Frame 2 Traveling Device 3 Threshing Part 4 Sorting Part 5 Mowing Part 6 Grain Transfer Device 7 Handling Cylinder 7a Handling Cylinder Chamber 8 Handling Net 9 Processing Cylinder 10 Dust Net 11 Swing Sorting Shelf 12 Compressed Fan 13 Ichiban gutter 14 Second gutter 15 Suction dust collector 16 Left side frame 17 Right side frame 18 Transfer rack 19 Glensive 20 Glen pan 21 Straw rack 22 Groove 23 Roller 24 Bracket 25 Swing rotary shaft 26 Swing arm 27 Pulley 28 Pressure Wind fan case 29 Blower shaft 30 Blower vane 31 Wind guide 32 Wind force control valve 32a Sorting object sensor 33 Wind force adjusting motor 34 Adjusting device 35 Transmission device 36 Speed change pulley 37 Adjusting cam 38 Rod 39 Arm 40 Rotating speed adjusting device 41 Rotation speed adjusting motor

Claims (1)

[Claims] 1. A threshing / winding device for wind-sorting threshing, wherein a transfer rack 18 and a Glensieve 1 are arranged from the front to the rear.
9. A swing selection shelf 11 in which a straw rack 21 is sequentially arranged is arranged below the handling barrel chamber 7a in which the handling barrel 7 is installed. A grain sheave 19 having a rising slope is provided, and a grain pan 20 through which grain leaks is provided below the grain sieve 19.
And a compressed air fan 12 for blowing the selection air from the front to the rear is arranged below the transfer shelf 18 of the swing selection shelf 11.
A thresher selection device characterized in that a wind force control valve 32 capable of increasing / decreasing the amount of sorting air is provided at a position below the rear end of the transfer rack 18 of the rocking sorting rack 11 and above the front end of the Glen pan 20. Sorting air conditioner.