JPH11155348A - Threshing equipment - Google Patents

Abstract

(57) [Summary] [Problem] To provide a threshing apparatus capable of obtaining high-quality kernels at a high recovery rate without reducing the threshing and sorting processing capacity of an object to be processed even if the throughput of the threshing apparatus varies. To provide. SOLUTION: An output signal of a second flow rate sensor 27c, a rocking rack position sensor 21a, a grain culm sensor 7a and / or a pair of depth sensors 7b is used to detect an increase in threshing processing amount and to form a comb. Since the dust discharge chamber end outlet 28b is operated to be shut off by a resistance means such as a guide screen, even if the processing amount of the dust discharge chamber 28 is increased, it is slightly longer than the comb-shaped guide screen. Since the straw chips are sucked by the suction fan 81a and discharged from the suction fan discharge port 81b in the direction of the arrow N and are discharged outside the combine, small rice grains and branch stalks other than slightly longer straw chips are used. Only the scorpion grains, small straw chips, etc., fall through the screen of the comb guide onto the rocking shelf 21 to prevent excessive accumulation of the straw chips, and the rocking shelf 2
Since the separation and sorting are carried out while keeping the layer thickness above the first layer properly, it is possible to improve the sorting performance of threshed grains and the grain collection efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing apparatus mounted on a combine or a harvester.

[0002]

2. Description of the Related Art FIG. 11 is a side view of a combine for harvesting cereals, FIG. 12 is a schematic side view showing a harvesting device and a feeding and conveying device and the like inside the combine, and FIG. 13 is a top view of the combine. FIG. 14 is a partially cutaway cross-sectional plan view of a main part of the threshing apparatus taken along the line AA in FIG.
5 is an elevational sectional view of a main part of the threshing apparatus taken along line XX of FIG. 14, and FIG. 16 is a side sectional view of a main part of the threshing apparatus taken along line CC of FIG. 17 is a partial detailed view of a cross section of a main part elevation of the threshing apparatus.

A traveling device 4 having a pair of left and right traveling crawlers 3 traveling on the soil surface is provided below the body frame 2, and a reaper 6 and a supply / transport device 7 are provided in front of the body frame 2. ing. The cutting device 6 includes a weeding tool 8 for weeding the planted grain culm and a raising case 9 for causing the planted grain culm.
And a cutting blade 11 for cutting the planted grain culm, and a stock feeder 12 for holding the grain culm cut by the cutting blade 11 and transporting it backward.
It is composed of Behind the stock carrier 12, there is provided a supply carrier 7 that takes over and transports the grain stalks conveyed from the stock carrier 12.

The reaping device 6 is supported by a reaping device support frame 13 which moves up and down about a fulcrum above a transmission case 5 for transmitting power to the traveling device 4 at a substantially left and right intermediate portion thereof. The reaper 6 is configured to move up and down together with the reaper support frame 13.

[0005] Above the body frame 2, a threshing device 15 having a feed chain 14 for taking over and transporting the grain culm conveyed from the supply / conveyance device 7, and a grain that has been threshed and sorted by the threshing device 15 is provided. A grain storage device 10 (FIG. 13) for temporarily storing is placed. Behind the threshing device 15, cutters 72 and 73 are provided for cutting the culm conveyed from the straw chain 69 (see FIG. 14).

As shown in FIG. 13, a vertical auger 18 is erected at the rear part of the grain storage device 10 so as to be rotatable in the left-right direction. A discharge auger 19 of substantially the same length is provided so as to be rotatable in the vertical direction. The grains stored in the Glen tank 16 of the grain storage device 10 include a grain tank helix 17, a vertical auger 18, and a discharge auger 19. Is discharged to the outside of the combine 1 via the.

[0007] The feed chain 14 supplies the grain culm with the grain to a threshing device 15, which threshes the grain from the grain culm and sorts and separates the grain as described later in detail. The grain is transported to the Glen tank 16 in the grain storage device 10, and the culm is cut and discharged to the field.

[0008] These operations are performed by the operating device 20 provided on the combine 1. As shown in FIGS. 14 and 15, the threshing device 15 is provided with a handling cylinder 29 in a handling chamber 26 serving as a main threshing unit, and a large number of handling teeth 29 a are provided on the surface of the handling cylinder 29. It is rotated in the direction of arrow B in FIG. 15 by a drive mechanism (not shown). The rotating motion of the toothing 29a of the handling cylinder 29 and the grain culm with the grain transferred by the feed chain 14 in the direction of arrow A in FIG.
The threshing is performed by the interaction between the net and the handling net 34, and the object to be treated (grain or straw) is passed through the handling net 34 in the direction of the arrow C <b> 1 (FIG. 15) and received by the swinging shelf 21. As shown in FIG. 16, since the swinging shelf 21 swings up and down and back and forth around the fulcrum 21c as the swinging center, the workpiece is moved in the direction of arrow D while being subjected to the wind from the Karamin 39a to be subjected to the wind sorting. The heavy grain passes through the sieve 22 and the sorting net 23 in the direction of arrow E, is accumulated on the first shelf plate 24, passes from the first helix 25 to the first fryer cylinder 40 (FIG. 13) and passes through the Glen tank 16
(FIG. 13).

The object to be processed on the swinging shelf 21 is blown off by the swinging operation of the swinging shelf 21 and by the blowing of Karamin 39a, and the sheave 2
2 is moved in the direction of arrow D on the straw rack 22a, and the second grain having a small size falls in the direction of arrow G and is collected on the second shelf plate 58. Grain 6
Transported to 0.

[0010] The second grain is a mixture of normal grains, branch stalks, straw chips and scorpion grains in which normal grains are stabbed in straw chips, as shown in FIG. Fried corn 6
In the second processing chamber 27, the waste product is pumped by the 0 second processing cylinder spiral 60 a and discharged from the second processing chamber entrance 27 a to the upper part of the second processing chamber 27. The second processing cylinder 30 at the lower part of the second processing chamber 27 is rotated in the direction of arrow J in FIGS. 14 and 17 by a driving device (not shown), and the second kernels are planted in the second processing cylinder 30. While proceeding in the direction of arrow I (FIG. 16) while colliding with the treated tooth 30a, separation of the second kernel and removal of the branch stalk of the branch stalk are performed.
Some of the workpieces pass through the second processing cylinder receiving net 35 in the direction of arrow C2 (FIG. 16) and fall on the swinging shelf 21, and most of the workpieces are removed from the end of the second processing cylinder 30 from the end. It is sent to the air blow of the number processing body wind blade 30a and falls on the swinging shelf 21 in the direction of arrow C3 (FIG. 16) and joins with the object to be processed from the handling chamber 26.

Advancing through the handling chamber 26 in the direction of arrow A in FIG.
Among the threshed grain culms in the processing object reaching the end of the handling room 26, those that remain long proceed in the direction of arrow A1 as shown in FIG. It is conveyed while being sandwiched between 69 and the spike tip chain 70, thrown into straw cutters 72 and 73, cut, and discharged to the field.

Among the processed materials that have reached the end of the handling room 26, of the threshed grain stems, short ones such as straw chips are:
It is thrown in the direction of arrow A2 (FIG. 14) from the dust processing chamber entrance 28a, enters the dust processing chamber 28, advances the dust processing chamber 28 in the direction of arrow K, and rotates integrally with the second processing cylinder 30. Diffusion and cutting are performed by a large number of treatment teeth 31a planted in the dust treatment cylinder 31, and the remaining grains and straw chips pass through the dust treatment cylinder receiving net 36 in the direction of arrow C4 in FIG. It falls on the swinging shelf 21.

As shown in FIG. 16, the end 28 b of the dust treatment chamber communicates with the upper end of the swinging shelf 21, and further communicates with a cross-flow fan 71 provided at the rear of the threshing unit 15. Therefore, the air containing the small-weight straw chips, the branch stalks and the dust among the dust dropped from the dust processing chamber 28 to the end portion of the swinging shelf 21 as shown by the arrow M is transferred to the crossflow fan impeller 7.
1a is sucked by the air blow by the rotation of the
1b is blown out in the direction of the arrow L and discharged to the outside of the combine 1.

Of the dust discharged from the dust treatment chamber 28 to the end of the swing shelf 21 as shown by the arrow M, those having a small diameter and heavy specific gravity, such as the second grain, are moved to the swing shelf 21 in the direction of arrow G. After passing through the straw rack 22a or the sheave 22 at the terminal end, it falls on the second shelf 58 and is processed again in the second processing chamber 27. Of the dust that has fallen from the dust treatment chamber 28 to the end of the swinging shelf 21 as shown by the arrow M, the slightly longer straw debris is received by the straw rack 22a and the swinging motion of the swinging shelf 21 causes the swinging movement of the swinging shelf 21 as shown by the arrow F. Is discharged from the end of the swinging shelf 21 to the field.

[0015]

In recent years, the use of a combine or a harvester or the like to harvest cereals,
That is, cutting and threshing operations have been labor-saving and efficient. In particular, by providing a continuously variable speed traveling device or a power steering device in the combine, labor in the combine operation can be reduced and the operation can be facilitated, and the skill of the driver does not require much skill. Also combine 1
In the threshing device 15 mounted on the apparatus, a second processing chamber 27 and a dust processing chamber 28 are provided in addition to the handling room 26, so that threshing efficiency is improved and grain recovery is improved.

However, in the mowing work, even if the traveling speed of the combine 1 is kept constant, the interval between vegetation, the number of grain culms per strain, that is, the dividing state, the grain culm 1
Depending on the steady state per stem, etc., the amount of the object to be processed taken from the reaper 6 into the threshing device 15 fluctuates, and particularly when the traveling speed of the combine 1 is changed depending on the condition of the field, the throughput of the threshing device 15 is particularly large. Greatly fluctuates. When the throughput of the threshing device 15 increases, the sorting of the processed material, especially the separation of the grain from the straw waste and the separation of the branch spike from the branch spike become poor, and the branch grain is mixed with the harvested grain. As a result, there has been a problem that the quality of the grain is reduced, and that the grain is accompanied by the straw and the recovery efficiency of the grain is reduced.

In particular, as shown in FIG. 16, when the throughput of the threshing device 15 increases and the throughput of the dust treatment chamber 28 also increases, an arrow is moved from the dust treatment chamber end outlet 28b to the swinging shelf 21. Since the amount of dust including long straw chips falling like M increases, the straw chips are piled up at the end of the rocking shelf 21, and the straw chips include not only branch stalks and dust but also normal grains and dust. Although sari grains are mixed, the rocking shelf 2
In the case where the separation and sorting in Step 1 are not sufficiently performed, the straw waste mixed with the kernels is discharged to the outside of the combine 1 as shown by an arrow F, and thus causes a significant decrease in the recovery efficiency of the kernel or a large amount. The straw chips fall on the second shelf plate 58 as shown by the arrow G, and the second spiral 59
0, thus filling the second processing chamber 27, causing the second processing load to be excessive, causing a reduction in the sorting and separation processing capacity.

Accordingly, an object of the present invention is to provide a threshing apparatus capable of obtaining high-quality grains at a high recovery rate without lowering the threshing and sorting processing capacity of the object to be treated even if the throughput of the threshing apparatus varies. To provide.

[0019]

The above object of the present invention is attained by the following constitution. That is, a dust chamber and a dust processing chamber are provided. The dust chamber and the dust processing chamber are provided with a dust processing cylinder for receiving an object to be processed and threshing from a processing chamber provided on one side of the handling chamber. In a threshing apparatus provided with a swinging shelf for receiving grains processed in the chamber and other objects to be processed below the dust processing chamber, an object-to-be-processed amount detecting means for detecting an object to be processed in the threshing apparatus; This is a threshing apparatus in which a regulating means for regulating the flow of the object to be dropped on the swinging shelf is provided at the end of the dust treatment chamber, and the regulating means is operated in accordance with the detection result of the object amount detecting means.

Specific examples of the object amount detecting means for detecting the object amount in the threshing apparatus of the present invention include a second flow sensor 27c and a swing shelf position sensor 2 shown in the following embodiments.
1a, a grain stalk sensor 7a, a pair of handling depth sensors 7b and / or
Alternatively, it is a sensor (not shown) for detecting the amount of movement of the pinching rod of the feed chain 14.

A specific example of the regulating means of the present invention is a comb guide 82 shown in the following embodiment. The regulating means partially regulates the flow of the object to be dropped on the swinging shelf. Or all may be regulated.

The object to be processed, which cannot be dropped on the swinging shelf, may be sucked by the suction fan 81 shown in the following embodiment and discharged to the outside of the machine, or may be directly discharged from the rear of the dust processing cylinder. May be discharged out of the machine.

The outline of the operation of the present invention will now be described with reference to specific examples. In the present invention, as shown in FIG. 2 to FIG. 4, a suction fan 81 and a comb-shaped guide 82 are provided near the end of the exhaust processing chamber 28, and the second flow rate sensor 27c is provided.
(FIG. 16), the swing shelf position sensor 21a (FIG. 1)
6), a grain stalk sensor 7a, and a pair of depth sensors 7b (FIG. 1)
2) An increase in the threshing processing amount is detected by a sensor (not shown) that detects the amount of movement of the pinching rod of the feed chain 14 and / or the comb-shaped guide 82 screen is used to shut off the end exit 28b of the dust processing chamber. To work. Therefore, even when the processing amount of the dust processing chamber 28 increases, the comb-shaped guide 82
The slightly long straw waste that cannot pass through the screen of the suction fan 81 is sucked by the suction fan 81 and
b may be discharged in the direction of arrow N shown in FIG. 1 and discharged outside the combine 1.

As described above, only small-sized paddy, branch stalks, sari grains, and small straw chips other than slightly longer straw chips fall through the screen of the comb guide 82 onto the rocking shelf 21. To prevent excessive accumulation of straw chips,
Since the separation and sorting are carried out while keeping the layer thickness above the first layer properly, it is possible to improve the sorting performance of threshed grains and the grain collection efficiency.

[0025]

Embodiments of the present invention will be described.
An embodiment of the present invention will be described with reference to FIGS. 1 to 4, which is an improvement of the structure of the combine shown in FIGS. 11 to 17 described in the related art, and a constituent member of the combine shown in FIGS. 11 to 17. The same parts as those described above are denoted by the same reference numerals, and description thereof will be omitted. FIG. 1 is the same as FIG.
FIG. 2 is a side cross-sectional view of a main part of the threshing apparatus 15 as viewed from the direction of the arrows.
FIG. 3 is an elevational sectional view of a part of the rear part of the threshing device 15 taken along the line DD in FIG. 1, FIG. 3 is an elevational view of the comb guide 82 of FIG. 2 only, and FIG. FIG. 3 is a front view of a comb guide 82 viewed from the direction of arrows EE in FIG. 3.

In the present invention, the main threshing unit of the threshing apparatus 15 is a handling chamber 26, in which a rotating handling cylinder 29 is provided. Movement and the feed chain 14 (FIG. 11)
The grain is threshed from the grain stalk by the relative movement with the grain stalk with the grain transferred in the direction (FIG. 1), and the objects to be treated (grain and straw waste) are treated as shown in FIG. 34 is passed in the direction of arrow C <b> 1 and received by the swing shelf 21. Rocking shelf 21
Swings around the fulcrum 21c (FIG. 1) in the up-down and front-rear directions, the workpiece is moved in the direction of arrow D in FIG. The heavy kernels pass through the sheave 22 and the sorting net 23 in the direction of arrow E in FIG. 1 and are accumulated on the first shelf 24, and from the first spiral 25 to the first frying cylinder 40 (FIG. 13) to the Glen tank 16. (FIG. 13).

The object to be processed on the swinging shelf 21 is blown off by the blowing operation of the swinging shelf 21 and the Karin 39a, so that the sheave 2
2 in the direction of arrow D in FIG.
The second grain having a small size on 2a falls in the direction of arrow G, is collected on the second shelf 58, and is conveyed to the second fried cylinder 60 by the second spiral 59.

The second kernel made of a mixture of normal kernel, branch stalk, straw waste, and a mixture of scorpion kernels in which the normal kernel is stabbed in the straw waste is the second kernel as shown in FIG. Grain 6
In the second processing chamber 27, the waste product is pumped by the 0 second processing cylinder spiral 60 a and discharged from the second processing chamber entrance 27 a to the upper part of the second processing chamber 27. The second processing cylinder 30 at the lower part of the second processing chamber 27 is rotated in the direction of arrow J in FIGS. 14 and 17 by a driving device (not shown), and the second kernels are planted in the second processing cylinder 30. While proceeding in the direction of arrow I (FIG. 1) while colliding with the treated tooth 30a, separation of the second kernel and removal of the branch vein of the branch stalk are performed. Arrow C2 from net 35
After passing in the direction (FIG. 1), it falls on the swinging shelf 21, and most of the objects to be processed are sent from the end of the second processing cylinder 30 to the air blow of the second processing drum wind blade 30b, and the second processing chamber. Drops from the terminal end outlet 27b to the swinging shelf 21 in the direction of arrow C3 (FIG. 1) and
6 joins the object to be treated.

A second flow rate sensor 27c is provided above the second processing chamber terminal end outlet 27b to detect the amount of processing in the second processing chamber, and a swing is provided above the swinging shelf 21 to detect the thickness of the shelf upper layer. A shelf position sensor 21a is provided so that the processing amount of the swing shelf 21 can be detected.

Among the processed materials that have reached the end of the handling room 26, short-sized ones such as straw waste among the threshed grain culms, as shown in FIG. After being thrown into the dust treatment chamber 28, the dust treatment chamber 28
In the direction of arrow K, and a large number of processing teeth 31a planted in a dust processing cylinder 31 rotating integrally with the second processing cylinder 30 perform diffusion and cutting, and remove grains and straw chips. It passes through the dust-removing cylinder receiving net 36 in the direction of arrow C4 (FIG. 1) and falls on the swinging shelf 21.

In the present invention, as shown in FIGS. 2 to 4, a suction fan impeller 81a for sucking straw and the like, a suction fan discharge port 81b, a suction fan rotation shaft 81c, and a suction fan are provided at the end of the dust treatment chamber 28. A comb fan 82a, 82a,..., A comb tooth connecting member 82b, a rotating arm 82c, and a rotating shaft which can be opened and closed by being rotated to a dust processing chamber terminal exit 28b. 82d
And a comb-shaped guide 82 made of

The comb-shaped guide 82 includes a second flow rate sensor 27c provided near the end of the second processing chamber 27 and a swing shelf position sensor 21a provided above the swing shelf 21 shown in FIG.
In addition, an increase in the threshing processing amount is detected based on the sensor outputs of the grain culm sensor 7a and the pair of depth sensors 7b provided in the supply and transfer device 7 shown in FIG. The handling depth sensor 7b in FIG. 12 includes two sensors, and the first sensor is ON and the other sensor is OFF, so that a normal handling depth is obtained.

That is, the swing shelf position sensor 21a directly detects an increase in the layer thickness on the swing shelf 21, and the second flow rate sensor 27c detects the increase in the layer thickness of the swing shelf 21 at the next time. The prediction and detection, the cereal culm sensor 7a and the pair of depth sensors 7b can further predict and detect the increase in the processing amount at the next point in time. In preparation for an increase in the amount of passage through the outlet 28b, the comb guide 82 is rotated as shown by the reference line in FIG. Activate to shut off the large one at the screen.

Since the comb-shaped guide 82 connects a large number of comb teeth 82a with a connecting member 82b to form a coarse screen, the comb-shaped guide 82 is rotated through the end 28b (FIG. 1) of the dust treatment chamber. When the screen is cut off by the screen, the slightly long straw chips that cannot pass through the screen of the comb guide 82 are sucked by the suction fan 81 and the suction fan discharge port 8.
1b (FIG. 1) is discharged in the direction of arrow N in FIG. 1 and discharged outside the combine 1, and small paddy, branch stalks, scorpions, small straw chips, etc. pass through the screen of the comb guide 82. It falls on the swinging shelf 21 and is separated and sorted.

In the present invention, a suction fan 81 and a comb-shaped guide 82 are provided near the end of the dust processing chamber 28, and the second flow rate sensor 27c, the swing shelf position sensor 21a, the grain stem sensor 7a and / or An increase in the threshing processing amount is detected based on the output signals of the pair of handling depth sensors 7b, and the screen of the comb guide 82 is operated so as to shut off the exhaust processing chamber end exit 28b. Even if it increases, the slightly long straw chips that cannot pass through the screen of the comb guide 82
And is discharged from the suction fan discharge port 81b in the direction of arrow N and acts to be discharged to the outside of the combine 1;
Only scorpion grains, small straw chips, etc., fall through the screen of the comb guide 82 and fall on the rocking shelf 21 to prevent excessive accumulation of straw chips, and reduce the layer thickness on the rocking shelf 21. Since separation and sorting are performed while being appropriately held, it is possible to improve the sorting performance of threshed grains and to improve the grain collection efficiency.

As shown in FIG. 2, the suction fan 81 extends the rotating shaft 71c of the cross flow fan 71 toward the dust treatment chamber 28, and a driving pulley 71d is attached to the shaft end of the rotating shaft 71c.
And the drive belt 71e is wound around the drive belt 7e.
If a structure is employed in which 1e is wound around and driven by a rotating fan drive pulley 81d fixed to the shaft end of the suction fan rotating shaft 81c, the above-described effect can be exhibited as a simple configuration with a small number of components.

The threshing apparatus shown in FIGS. 5 and 6 may be used to prevent the scattered flow of kernels due to the blowing of Karino 39a while the cutting operation is temporarily suspended, such as during turning of the combine 1.

FIG. 5 is a side sectional view of a main part of the threshing apparatus of the present embodiment (a view taken along line CC of FIG. 15), and FIG. 6 is a threshing apparatus 15 taken along line FF of FIG. It is an elevational view of a part of the rear part of FIG.

When the combine 1 is used to cut the culm to be planted in the field, when the combine 1 advances to the boundary of the field, the operator stops the cutting device 6, raises the cutting device 6, and raises the cutting work. The combine 1 is turned to change the cutting direction while temporarily suspending (see FIG. 11). Even during this turning, the operation of the threshing device 15 mounted on the combine 1 is not stopped, and the threshing from the previously harvested culm and the separation and sorting of the threshed kernels are continued. Since the threshing processing amount gradually decreases due to the interruption, the layer thickness of the object to be processed on the rocking shelf 21 becomes thinner, and the blowing amount of Karamin 39a becomes relatively excessive, and the grains to be collected are scattered. Problems arise.

When the combine 1 is turned and the cutting direction is changed while the cutting operation is temporarily stopped, the operation of the threshing device 15 is not stopped.
May be manually stopped, but basically, the mowing device 6 is automatically stopped. That is, when the power steering lever (not shown) is tilted toward the operator (including the case where the power steering lever is tilted only once), the reaping device 6 automatically rises, and the drive thereof is stopped. The feed chain 14 also stops automatically.

In the example shown in FIGS. 5 and 6, the guide plate body 83a of a rectangular plate-like member is rotatably supported, and the support shaft 83b is fixed to the link mechanism 83c and can be driven by the feed chain stop motor 14a. Guide plate 8 connected to
3 is installed below the cross flow fan 71 and above the end of the swinging shelf 21. Guide plate 83
Is normally in the ascending position as shown by the solid line in FIGS. 5 and 6 and is completely equivalent to the conventional threshing device. However, when the cutting device 6 is stopped, for example, when the combine 1 is turned, the cutting device 6 When the feed chain stop motor 14a is activated, the guide plate 83 is lowered by the operation of the feed chain stop motor 14a as shown by the reference lines in FIGS. Arrow F from 21
And acts to resist the flow of the processed material discharged.

Therefore, according to the examples shown in FIGS. 5 and 6, the processing amount in the threshing device 15 decreases with the stop of the mowing device 6, the layer thickness on the rocking shelf 21 decreases, and The problem that grains and the like are easily scattered due to the blowing is described in the guide plate 83.
Can be prevented by increasing the resistance due to the drop of

The guide plate body 83a is not limited to a flat plate as described above, but may be a screen shape like the comb guide 82, a lattice shape or a perforated plate having an appropriate aperture ratio.

When the harvesting work of the culm to be planted in the field by the combine 1 is performed, even if the harvesting is performed while the combine 1 is running at a constant speed, threshing occurs depending on the condition of the field and the growth state of the grain culm. The amount of grain stalks fed into the device 15 fluctuates, and when the amount of grain stalks decreases, the threshing amount decreases, so that the layer thickness of the processing object on the swinging shelf 21 decreases,
The air volume of Kara Mina 39a is relatively excessive, and the grains to be collected are scattered.

FIG. 7 (a cross-sectional side view of a main part of the threshing apparatus (a view taken along the line CC in FIG. 15)) and FIG. 8 (G in FIG. 7).
As shown in an elevational view of a rear part of the threshing device 15 as viewed from the direction of the arrow G), the guide plate main body 84a, which is a rectangular plate-like member, is rotatably supported, and the support shaft 84b is a link mechanism (not shown).
A guide plate 84 having a configuration rotatably connected to a drive mechanism is provided below the cross flow fan 71 and above the end of the swinging shelf 21.

The guide plate 84 is always in the raised position as shown by the solid line in FIGS. 7 and 8, and is completely equivalent to a conventional threshing apparatus. When the grain stalk is not transported to the supply and transport device 7, the grain stalk sensor 7a and / or a pair of depth sensors 7b
The non-sensing of FIG. 12 is detected, and the guide plate 84 is lowered by the control device (not shown) as shown by the reference lines in FIGS. So as to be resistant to the flow of the processing material discharged to the

At this time, the width of the guide plate 84 is equal to the width of the cross flow fan 71 as shown in FIG. It acts so that dust can be discharged from the terminal end outlet 28b as shown by the arrow P.

Therefore, when the amount of cereal culm sent to the threshing apparatus 15 decreases due to the condition of the field, etc., the cereal culm sensor 7a and / or the pair of depth sensors 7b detect non-sensing of the cereal culm and move the guide plate 84. When the guide plate 84 is lowered, it is possible to prevent the scattering of grains and the like due to the blowing of Karino 39a even if the layer thickness of the processing object on the swinging shelf 21 is reduced. There is no hindrance to the emission of dust from 28.

The guide plate body 84a can be formed in a screen shape like the comb guide 82 (FIG. 4) in addition to the flat plate as described above. It may be a perforated plate.

In the case where the grain culm sensor 7a and / or the pair of depth sensors 7b detect non-sensing of the grain culm, the second processing chamber 27 detected by the second flow rate sensor 27c shown in FIG. By performing control to lower the guide plate 84 when the processing flow rate is equal to or greater than the set value, the above-described effect can be more reliably enhanced.

The operation of the guide plate 84 at this time is summarized as follows. 1. When the cereal stalk sensor 7a and the depth sensor 7b are not sensed and the second flow rate sensor 27c is equal to or more than a certain value, it falls. 2. When the cereal stalk sensor 7a and the depth sensor 7b are not detected and the second flow rate sensor 27c is equal to or less than a predetermined value, the stalk sensor 7b does not lower. 3. When the grain culm sensor 7a and the handling depth sensor 7b sense and exceed the second flow rate sensor 27c a certain value or more, they do not descend. 4. When the grain culm sensor 7a and the depth sensor 7b sense and are below the second flow rate sensor 27c a certain value, they do not descend.

FIGS. 9 and 10 show configurations for improving the harvesting and threshing of the combine 1 and the recovery of the third kernel, respectively. FIG. 9 is a schematic view of a cross section of a main part of the threshing apparatus (as viewed from the direction of arrows CC in FIG. 15).
FIG. 10 is a partially transparent plan view of the rear part of the threshing device 15 as viewed in the direction of arrows HH in FIG. 9.

14 and 16, which show a conventional example, in the final stage of the cutting and threshing operation by the combine 1, a pestle (straw) from which the grains have been threshed is used as a straw cutter 7.
Short straws cut and processed at 2, 73, remaining straw chips separated and separated on the oscillating shelf 21 and straw straws of the oscillating shelf 21 processed and processed at the dust treatment chamber 28. 2
Straw chips and the like that have fallen into 2a are both released from the rear of the combine 1 into the field. It is desired to spray straw as much as possible to improve the soil strength of the field.
In particular, on the straw rack 22a of the swinging shelf 21, straw chips and the like tend to be clumped, and the clumps of straw chips are released to the field in a pulsating manner, so that the straw chips cannot be uniformly spread on the field.

In order to solve the above problem, the configuration shown in FIGS. 9 and 10 can be adopted. As shown in FIG. 9 and FIG. 10, the lower part of the cross flow fan 71, the rear end of the swing shelf 21, and the height of the straw shelf 21 at the same height as the straw cutters 72, 73. It is characterized in that a second cross flow fan 85 having the same width is installed.

As indicated by arrow Q, the second cross flow fan 85 sucks a rather long piece of straw or the like on the straw rack 22a at the rear end of the swinging shelf 21 together with air from the suction port 85a, and rotates the cross flow. An action of passing through the inside of the impeller 85b, finely cutting lump-like litter and the like by collision of the blade and the straw when passing through the cross-flow impeller 85b, and discharging the lump from the discharge port 85c into the rear cover 15a of the threshing apparatus. And the discharge air is blown by straw cutters 72 and 7
3 and descends with accompanying falling straw, and is uniformly diffused and discharged from the threshing device rear cover discharge port 15b toward the field. In particular, a part of the discharge wind is indicated by an arrow Q1 in FIG. As shown, it blows out to the falling part on the tip side of the grain stem cut by the straw cutters 72 and 73, and acts to help spread the tip part which tends to be clumpy. Cross-flow fan 7
In the same manner as in the prior art, 1 sucks air containing dust having a low specific gravity, branch stalks and dust among the exhausted dust in the direction of arrow L in FIG. 9 and blows it into the threshing machine rear cover 15a.

In this way, the straw chips and the like discharged from the dust treatment chamber 28 and the straw chips and the like on the swinging shelf 21 are smoothly sucked and discharged by the second cross flow fan 85, and the second cross flow fan 85 When passing, the lump of straw is crushed, and the diffusion of the straw including the spike-side portions cut by the straw cutters 72 and 73 by blowing of the second cross flow fan 85,
Discharge is improved, intermittent pulsation of straw waste and lump of straw are prevented from being released to the field, and the swing shelf 2
The amount of the second processed material which passes through the swinging shelf 21 and accumulates on the second shelf plate 58 and is conveyed to the second processing chamber 27 is reduced because the amount of straw waste on the first is reduced. As a result, the collection efficiency of the first grain is improved, and the third processed material accompanying the waste straw is reduced, so that the sorting performance and the grain recovery performance of the entire threshing apparatus 15 are improved.

As shown in FIGS. 9 and 10, the rear cover 15a of the threshing device is hinged to hinges 15c, 15c.
If the configuration is such that the straw cutters 72 and 73 and the second cross flow fan 85 swing together with the threshing device rear cover 15a when the configuration is opened by swingably connecting to the threshing device main body casing 15d using the threshing device 15c and 15c. Inspection and repair can be easily performed by directly approaching the straw cutters 72 and 73 and the second cross-flow fan 85, which are relatively frequently performed for maintenance due to clogging of straw waste.

[0058]

According to the present invention, even if there is a fluctuation in the throughput of the threshing apparatus, threshing of high quality can be obtained at a high recovery rate without lowering the threshing and sorting processing capacity of the processing object. An apparatus can be provided.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a main part of a threshing apparatus 15 according to an embodiment of the present invention (viewed along the line CC in FIG. 15).

FIG. 2 is an elevational sectional view of a part of a rear part of the threshing device 15 taken along the line DD in FIG. 1;

FIG. 3 is an elevational view showing only the comb guide of FIG. 2;

FIG. 4 is a front view of the comb guide 82 as seen from the direction of arrows EE in FIG. 3;

FIG. 5 is a side sectional view of a main part of a threshing apparatus according to a modification of the embodiment of the present invention (as viewed in the direction of arrows CC in FIG. 15).

6 is an elevational view of a part of a rear part of the threshing device 15 as seen from the line FF in FIG. 5;

FIG. 7 is a side sectional view of a main part of a threshing apparatus according to a modification of the embodiment of the present invention (as viewed in the direction of arrows CC in FIG. 15).

8 is an elevational view of a part of the rear part of the threshing device 15 as viewed from the direction of arrows GG in FIG. 7;

FIG. 9 is a schematic view of a cross section of a main part of a threshing apparatus according to a modification of the embodiment of the present invention (as viewed in the direction of arrows CC in FIG. 15).

FIG. 10 is a partially transparent plan view of the rear part of the threshing device 17 as viewed in the direction of arrows HH in FIG. 9;

FIG. 11 shows a side view of the combine.

FIG. 12 is a schematic side view showing a harvesting device, a supply and transport device, and the like inside the combine shown in FIG. 11;

FIG. 13 shows a top view of the combine of FIG.

14 is a partially cutaway plan sectional view of a main part of the threshing apparatus taken along line AA of FIG. 11;

FIG. 15 is an elevational sectional view of a main part of the threshing apparatus taken along line BB of FIG. 14;

FIG. 16 is a side sectional view of a main part of the threshing device taken along line CC of FIG. 15;

FIG. 17 is a partially detailed view of a cross section of a main part elevational view of the threshing apparatus.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Combine 2 Body frame 3 Traveling crawler 4 Traveling device 5 Transmission case 6 Cutting device 7 Supplying and transporting device 7a Grain culm sensor 7b Handling depth sensor 8 Weeding tool 9 Raising case 10 Kernel storage device 11 Cutting blade 12 Stock transport device DESCRIPTION OF SYMBOLS 13 Cutting frame support frame 14 Feed chain 15 Threshing device 16 Glen tank 17 Glen tank spiral 18 Vertical auger 19 Discharge auger 20 Operating device 21 Rocking shelf 22 Sheave 23 Sorting net 24 First shelf 25 First spiral 26 Handling room 27 2 No. 2 processing chamber 28 Dust processing chamber 29 Handling cylinder 30 No. 2 processing cylinder 31 Dust processing cylinder 34 Handling net 35 No. 2 processing cylinder receiving net 36 Dust processing cylinder receiving net 39 Karamin 40 First grain bin 58 Second shelf Plate 59 No. 2 Spiral 60 No. 2 Spray Canister 60a No. 2 Spray Canister Spiral 69 Drain Chain 70 Drain Spike Over emissions 71 cross flow fan 72 and 73 straw cutter 81 suction fan 82 comb guide 83 guide plate 85 the second transverse fan

Claims (1)

[Claims] A processing chamber for supporting a processing cylinder from a processing chamber provided on one side of the processing chamber for receiving and threshing a processing object from a processing chamber provided on one side of the processing chamber; In a threshing apparatus provided with a swinging shelf for receiving the grains and other objects to be processed in the dust processing chamber below the dust processing chamber, a processing object amount detecting means for detecting an amount of the processing object in the threshing apparatus Regulating means for regulating the flow of the object to be dropped on the swinging shelf at the end of the dust treatment chamber, and operating the regulating means according to the detection result of the object amount detecting means. Threshing equipment.