JPH06113662A - Threshing and vibrationally grading device of combine - Google Patents

Abstract

PURPOSE:To enhance the vibrational transfer and grading effects of threshed products by separately vibrating vibrationally grading racks for grading the threshed products and transfer racks. CONSTITUTION:The threshing and vibrationally grading device of the combine is characterized by guiding the vibration direction of a transfer rack 2 for receiving threshed products leaked from a threshing net 1 and subsequently vibrationally transferring the threshed products to a guide 3 downward-inclined in the transfer direction, and guiding the vibration direction of a vibrationally grading rack 4 for vibrationally transferring and grading the threshed products received from the transfer rack 2 to a guide 5 upward-inclined in the transfer direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine threshing rocking sorting apparatus, and enhances the swing transfer sorting effect of threshing in the swing sorting apparatus.

[0002]

2. Description of the Related Art An oscillating sorting apparatus for oscillating and transporting thresher that leaks from a threshing net is provided with a transfer rack for oscillating and transporting the sheds. Oscillating sorting threshed grain that has been inherited from the shelves In many cases, the shelving and sorting shelves are integrally swung, but since the shelving direction of both shelves is the same, both the transfer and sorting of grain removal are the best. It is difficult to maintain efficiency, and if the sorting capacity of the swing sorting shelf is increased, the transfer capacity of the transfer shelf tends to decrease.

Originally, the function of the transfer shelf is to have a high transporting capacity for removing grain to the rocking sorting shelf and to make the grain layer uniform.
The function of the oscillating sorting shelf requires not only transporting ability but also sorting ability for grains and other impurities. Therefore, according to the present invention, the swinging angle of the transfer rack is loosened to enhance the carrying capacity, and the swinging sorting rack maintains the sorting performance at a high swinging angle.

[0004]

According to the present invention, the swinging direction of a transfer shelf 2 which receives the threshing leaked from the threshing net 1 and swings and transports it is guided to a guide body 3 having a downward slope in the transporting direction. And again
Of the combine threshing rocking / sorting device in which the swinging direction of the rocking / sorting shelf 4 for sorting the threshing inherited from the transfer shelf 2 while swinging and transferring the same is guided by the guide body 5 having an upward slope in the transfer direction. The configuration.

[0005]

During the threshing operation, the transfer shelf 2 is guided by the guide body 3 and is swung in the transfer direction with a downward slope, so that the threshing received on the upper surface of the transfer shelf 2 is swung and transferred. Therefore, the transfer is promptly performed. Also, this transfer shelf 2
The grain removal inherited from the rear end on the rocking sorting shelf 4 is rocked and transported on the upper surface of the rocking sorting shelf 4 which is rocked by being guided by the guide body 5 which inclines upward in the transfer direction. Grains are separated from straw debris and sorted for leakage.

The transfer rack 2 and the swing selection rack 4 are
Since each of them is rocked in a proper rocking direction or rocking angle, the transfer efficiency of grain removal in the transfer rack 2 and the transfer sorting processing efficiency in the rocking select rack 4 are both kept high. You can

[0007]

[Embodiment] As a threshing device used for a combine, a handling cylinder 6
A threshing net 9 and a straw outlet 10 are provided below a threshing chamber 8 axially mounted to transmit the rotation around the handling cylinder shaft 7 in the front-rear direction,
From the front supply port 11, the feed chain 12 and the clamping rod 1
The grain culms sandwiched and conveyed by 3 and 3 are threshed while being fed so that the grain is leaked from the threshing net 1, and the grain with a large amount of straw waste is discharged from the straw outlet 10. Feed chain 1
The threshing culm sandwiched and conveyed by 2 is taken over by the culm device 15 in the culm chamber 14 on the rear side of the threshing chamber 8 and transferred rearward. Further, a dust exhaust chamber 20 having a suction dust remover is provided below the exhaust chamber 14.

The transfer shelf 2 is located below the threshing net 1 and is constructed with a downward slope (backward) from the supply port 11 side toward the drain port 10 side, and the upper surface is a corrugated rack surface. Formed,
The roller 16 provided at the bottom is fitted and supported by the inverted U-shaped guide body 3 fixed to the left and right side wall portions 17 of the machine body. The guide body 3 is attached so that the inner guide portion is oriented along the above-mentioned backward descending inclination of the transfer shelf 2, and is interlocked by the rotation of a crank shaft 18 supported on the machine body on the lower surface of the transfer shelf 2. The crank rod 19 is connected, and the rotation of the crank shaft 18 causes the transfer shelf 2 to swing along the guide portion of the guide body 3.

The rocking / sorting shelf 4 comprises a transfer plate portion 21, a rack plate portion 22, a straw rack portion 23, and the like extending from the lower portion of the straw outlet 10 to the lower portion of the dust collection chamber 20. The roller 26 is integrally attached to the swing frame 25 and swings by the rotation of the rear crankshaft 24, and the roller 26 integrated at the front end of the swing frame 25 is guided by the guide body 5 having the same shape as the guide body 3. It is fitted and supported by the section to guide the swing. This guide 5
The direction of the guide portion is set to be rearward and upward, and is set so as to extend in a direction substantially along the direction of the discharge port 28 from the upper fan 27.

The transfer plate portion 21 has the same form as the transfer shelf 2 and receives the grain removal delivered from the transfer shelf 2 and swings and transfers it. The rack plate portion 22 has an appropriate front-rear spacing 29, and is inclined rearward and upward, and a sheave hole 30 is provided in the lower half portion.
Is formed. Reference numeral 31 is a sorting net, and the grain is leak-separated from the sorted matter that leaks from the space 29 of the rack plate portion 22.

The relationship between the rear edge of the transfer shelf 2 and the rear edge of the transfer plate portion 21 of the rocking / sorting shelf 4 is the distance A when the two are the farthest from each other, and the distance B when the two are the closest to each other.
It is in. The lower air outlet 33 of the lower fan 32 is formed in the lower front portion of the swing sorting shelf 4 so that the sorting air flows toward the dust chamber 20 in the upper rear portion. 34 is the first gutter that receives and transfers the selected grains, and 35 is the second gutter that receives and transfers the second grain.

The transfer shelf 2 is guided by the guide body 3 and is rocked and moved rearward and downward along this inclination, and the grain loss is dispersed in a uniform layer while rocking on the rack surface. The rocking sorting shelf 4 is rocked by the rotation of the crank shaft 24, and the roller 26 is guided by the guide body 5 at the front part of the rocking frame 25, and the direction of the air blow from the discharge port 28 is almost the same. It is swung backward and upward along the direction. The grain removed from the end of the transfer rack 2 is
It is once received on the transfer plate portion 21, transferred to the starting end portion of the rack portion 22, rocked and transferred on the rack portion 22, and leaks from the gap 29. At this interval 29, the air is selected by the sorting air from the discharge port 28, heavy grains and the like leak, and light straw debris and the like are floated and transported on the rack 22. Further, at the interval 29 in the latter half portion, the sorting air from the discharge port 33 is blown by the lower fan 32. On the upper side of these rocking sorting shelves 4, the suction air from the suction dust collector in the dust chamber 20 also works, and the sorted grains that have undergone the sorting operation are first in the trough 34, and the second one is second. Received by each gutter 35. The straw waste transferred by the Straw rack 23 is discharged to the outside of the machine as a whole, and the dusts floating on the rocking and sorting shelves 4 are sucked and discharged by the suction dust collector.

In FIG. 4, when a large amount of grain is flowed on the upper surface of the rocking sorting shelf 4 and the upper surfaces of the spaces 29 are closed, the sorting air is passed through the sheave holes 30 to the rear side. Since the air flows in the space 29, the flow of the sorting air is maintained well. In FIG. 5, the guide body 5 is configured to extend substantially in the direction of the discharge port 28. However, due to the swinging, the roller 26 with respect to the rack portion 22 when the roller 26 reaches the front portion of the guide body 5 is formed. The wind contact area C from the discharge port 28 and the same wind contact area D when the roller 26 reaches the rear portion of the guide body 5 are almost unchanged, but as shown in FIG. When the orientation of the rack portion 22 is upward, a part of the rack portion 22 protrudes from the wind area D to the front side. Conversely, when the guide body 5 is oriented downward as shown in FIG. In the area D, the action area of the sorting wind may become narrow.

In FIG. 8, the discharge port 28 of the upper fan 27 is vertically branched, the guide body 5 is positioned at the branch portion 36, and the sorting wind passing above the branch portion 36 is transferred to the transfer rack 2 It is configured such that the air can be blown rearward and upward through a space between the end and the beginning of the rack portion 22 of the swing selection shelf 4. 9,
In FIG. 10, a straw amount sensor 37 for detecting the operation amount of the pinching rod 13 changes the swing speed of the transfer rack 2 in a gear-shifted manner.
When the amount of straw in the threshing chamber 8 is large, shift control is performed so that the swing speed of the transfer shelf 2 is also increased to increase the swing transfer processing amount. Further, the rocking speed of the rocking sorting shelf 4 is synchronized with the rotation of the upper and lower fans 27, 32.

The transmission to each part of the threshing device is transmitted from the engine E to a drive shaft 38 of the threshing device part by a belt 39. From the drive shaft 38, a belt 40 is used to transmit the crankshaft 18 to the crankshaft 18.
The pulley 41 on the crankshaft 18 is used as a split pulley, and the stepless speed change is performed by the tension pressure of the tension pulley 42. The operation amount of the tension pulley 42 is changed according to the operation amount of the straw amount sensor 37,
The variable speed rotation transmission of the crankshaft 18 can be performed according to the amount of straw.

Further, from one end of the drive shaft 38, the belt 43
Transmits the lower fan shaft 44, and further transmits the upper fan shaft 45 from the lower fan shaft 44. In the mode (FIG. 9) in which the crank shaft 24 for rocking the rocking / sorting shelf 4 is provided in the front part of the rocking frame 25, the fan shaft 45 is transmitted through the belt 46. The guide body 5 that is swung by the crank shaft 24 via the crank rod 47.
Is a swing arm, and the lower end of this swing arm is pivotally supported 48 on the machine body side wall portion 17, and the upper end pivotally connecting portion to the swing frame 25 is along the direction of the discharge port 28 from the upper fan 27. It is configured to swing.

Further, from the drive shaft 38 through the belt 49,
The spiral shaft 50 of the first gutter 34 is transmitted, and the spiral shaft 5
From 0 through the belt 51, the spiral shaft 52 of the second gutter 35
The fan shaft 53 and the like of the suction dust collector are transmitted, and the feed chain 12 is transmitted from the fan shaft 53. In the configuration in which the crankshaft 24 of the swing selection shelf 4 is provided at the rear portion of the swing frame 25 as described above, it may be configured to be transmitted from the spiral shaft 52 or the like.

[Brief description of drawings]

FIG. 1 is a side view of a threshing device.

FIG. 2 is a side view showing the operation.

FIG. 3 is a plan view of a part thereof.

FIG. 4 is an enlarged side view of a part thereof.

FIG. 5 is a side view showing a part of the operation thereof.

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

FIG. 7 is a side view of another embodiment.

FIG. 8 is a side view showing another embodiment.

FIG. 9 is a side view showing a transmission mechanism.

FIG. 10 is a plan view thereof.

[Explanation of symbols]

 1 Threshing Net 2 Transfer Shelf 3 Guide 4 Swing Selection Shelf 5 Guide

Claims (1)

[Claims] 1. A swinging direction of a transfer shelf (2) that swings and transfers the grain received when leaked from the threshing net (1) is guided to a guide body (3) having a downward slope in the transfer direction, and the transfer shelf (2) is also moved. A combine threshing rocking / sorting device in which the swinging direction of the rocking / sorting shelf 4 for sorting the threshing / grains inherited from the above while swinging / transferring it is guided by the guide body 5 having an upward gradient in the transporting direction.