KR20080084946A - Combine - Google Patents

Abstract

A combine improved in the diffusion performance of a diffusion plate with no power transmission system additionally provided. The combine (1) comprises a squeezing drum (6) for threshing grain stalks, a suction fan (60) disposed at the rear portion of the squeezing drum (6) to suck dust for exhausting to outside the machine, and a dust-transmitting port secondary treating drum (41) disposed in parallel to the squeezing drum (6) and at the rear portion of the squeezing drum (6), wherein a diffusion plate (72) for uniformly diffusing exhausted dust is disposed below the outlet of the dust-transmitting port secondary treating drum (41) and below the outlet of the suction fan (60).

Description

Combine {COMBINE}

The present invention relates to the technique of the straw discharge treatment unit for discharging the straw and the like discharged from the threshing unit of the combine to the field.

It is known that the straw etc. discharged from the threshing apparatus of a combine conventionally tend to bias one side of the combine traveling width | variety. Since the straws and the like that are biased and discharged fall in a lump state, they are very unsightly, and a straw discharge treatment mechanism for uniformly spreading and discharging the straws has been desired. In order to solve this problem, a technique for dispersing biased straws and discharging them to the field by installing a diffusion plate under the dust exhaust port for discharging the straws is known. Moreover, the technique which improves a diffusion capability by providing a diffusion blade to a diffusion plate is also known (patent document 1).

[Patent Document 1] Japanese Unexamined Patent Publication No. 2001-204229

1 is a left side view showing the overall configuration of a combine according to an embodiment of the present invention.

2 is a plan view of a combine.

3 is a right side view of the combine.

4 is a left side cross-sectional view of the threshing part.

Fig. 5 is a side sectional view of the threshing part rear part and the straw discharge treatment part;

6 is a plan sectional view of the threshing part rear part and the straw discharge treatment part;

7 is a rear view of the combine (near the discharge port).

8 is a plan view of the rocking separator and diffusion plate.

9 is a rear view of the combine (near the discharge port).

10 is a plan view of the rocking shaker plate and the diffusion plate.

11 is a front view of the cutter device of the discharge straw.

Explanation of the sign

1: combine 5: a threshing unit

6: handling drum 32: shaking plate

51: exhaust port 60: suction fan

61 suction fan exhaust port 72 diffuser plate

80: guide

However, as in the prior art, merely providing a diffusion rack or a diffusion plate at the rear of the straw rack was insufficient to diffuse the straw mass discharged. In addition, the configuration in which the diffuser blade is attached to the diffuser plate requires a separate power transmission system to rotately rotate the diffuser blade, thereby complicating the mechanism and using additional energy.

This invention provides the combine which improved the diffusivity of a diffuser plate, without providing a separate power transmission system in view of the above subjects.

The problem to be solved of the present invention is as described above, and means for solving the problem will be described next.

That is, according to claim 1, the handling drum for threshing grains, the suction fan disposed at the rear of the handling drum to suck dust and discharged out of the gas, and arranged in parallel with the handling drum and arranged at the rear side of the handling drum. In the combine with a process drum, a diffuser plate for uniformly dispersing the discharged dust is disposed below the suction fan outlet below the process drum outlet.

The said diffusion plate is integrally comprised in the rear end of the oscillation screening apparatus which selects a threshing material.

The diffusion plate is provided with a plurality of guide plates for guiding dust in a predetermined direction on an upper surface of a plate body having a width substantially equal to the left and right widths of the rocking separator.

As an effect of this invention, the effect as disclosed below is shown.

The method according to claim 1, wherein the dust is diffused in the diffusion plate and the exhaust is exhausted, so that the dust can be spread more broadly and uniformly, and the dust is not biased in one direction.

In Claim 2, it is possible to rock a diffuser plate together with a rocking | swinging device without the need of an independent dynamometer by integrally combining with a rocking | swinging device.

In Claim 3, it becomes possible to make the direction to diffuse to some extent by providing a guide, and it becomes possible to diffuse back dust uniformly with a higher probability.

Next, an embodiment of the invention will be described.

1 is a left side view showing the overall configuration of a combine according to an embodiment of the present invention, Figure 2 is a plan view of the combine, Figure 3 is a right side view of the combine. Fig. 4 is a left side cross-sectional view of the threshing part, Fig. 5 is a side cross-sectional view of the threshing part rear part and the straw discharging treatment part, Fig. 6 is a plan sectional view of the threshing part rear part and the straw discharging processing part, Fig. 7 is a rear view of the combine (near the discharge port), Fig. 8 is a plan view of the swing sorting plate and the diffusion plate, FIG. 9 is a rear view of the combine (near the discharge port), FIG. 10 is a plan view of the swing sorting plate and the diffusion plate, and FIG. 11 is a front view of the cutter device of the discharge straw.

Example  One

Hereinafter, the schematic structure of the combine 1 which is one Embodiment of the combine which concerns on this invention using FIG. 1 thru | or 3 is demonstrated.

The combine 1 cuts the stalks of rice from the field and threshes grains (rice) while driving a rice harvest, more specifically, a field. The combine 1 of a present Example is a self-harvesting combine which threshes the side of the ear | grains which adhered to rice among the cut | disconnected stems.

The traveling crawler 3L, 3R is provided in the left and right of the truck frame 2 which comprises the structure of the lowest part of the combine 1, and the mechanism base 4 is provided on the truck frame 2. As shown in FIG. The threshing part 5 is installed on the instrument base 4. The threshing part 5 is provided with the handling drum 6, the feed chain 7, etc. The harvesting part 8 is provided in front of the threshing part 5 on the instrument base 4, and the straw discharge processing part 9 is provided in the back of the threshing part 5 on the instrument base 4. The straw discharge chain 10 is disposed at a position where the start end faces the feed chain 7, and the end faces the straw discharge processing unit 9, and the straw (the stem after rice is threshed) discharged from the feed chain 7. ) Is returned to the straw discharge processing unit 9.

The harvesting unit 8 cuts off the stems of rice from the field and conveys them to the threshing unit 5.

The threshing part 5 threshes rice from the grain stem conveyed from the harvesting part 8, and handles the ear tip of a grain stem while conveying backward, holding the root part of a grain stem with the feed chain 7 In contact with the drum 6, the rice is separated (throwed) from the stem.

The rice which was threshed in the threshing part 5 is separated into rice husk, straw, dust, etc. by the wind sorting or rocking sorting in the sorting part installed below the threshing part 5, and a grain is passed through the grain container 11 here. It is carried in and stored in the grain tank 12 provided in the right side of the threshing part 5. Moreover, the discharge auger 13 is connected to the grain tank 12, and it is possible to carry out the grain stored in the grain tank 12 to the outside of the grain tank 12 by operating the discharge auger 13.

The driving cabin 14 is provided in front of the grain tank 12, and the driving operation part 15 and the driver's seat 16 which consist of a direction adjustment handle etc. are provided in the driving cabin 14 inside. Below the driving cabin 14, the engine 17 which is a drive source of the combine 1 is provided.

Next, the threshing part 5 is demonstrated using FIG.

As shown in FIG. 4, in the handling chamber 20 formed in the threshing part 5, a handling drum 6 which is hung in the front-rear direction of the base is installed, and the handling chamber 20 is provided through the handling tool 21. ) To insert the grain stem. The crimp net 31 is tightened under the handling chamber 20, and the swing sorting plate 32 is freely supported in the front-rear direction by applying a shear to the lower side of the crimp net 31.

The first and second feed plates 33 and 34 of the swing sorting plate 32 are arranged in two stages above and below the crimp net 31, and the straw rack 40 is connected to the front feed plate 33. The rear end side is freely swinged up and down, the chaff sheave 35 is continuously installed behind the rear feed plate 34, and the grain sheave 36 is arranged below the chave sheave 35. Moreover, the fixed chaff part 37 is arrange | positioned at the rear part of the chaff sieve 35. As shown in FIG.

In addition, as shown in FIG. 5 and FIG. 6, the rosin opening No. 2 processing drum 41 is provided on the right side of the gas traveling direction (viewed from the rear) of the handling drum 6, and when viewed from the side, The front part is wrapped in the rear part of the handling drum 6, and the grain which cut out the ear which the whole processing of the handling drum 6 did not process, the grain with the branch or the stem, etc. are processed, and is lower than the rosin opening No. 2 processing drum 41. The grain detached from the crimp net 41a arrange | positioned at the inside is comprised so that it may fall on the chaff sieve 35 and the fixed chaff part 37.

In the lower part of the said No. 2 processing drum 41, the conveyance body 86 is rolled up in the front-back direction so that it may overlap in plan view in parallel with the No. 2 processing drum 41, and the said carrier ( 86 receives grains falling from the rosin opening No. 2 processing drum 41 through the crimp net 41a, and transfers the grains and the like to the front, that is, the granules by the rosin opening No. 2 processing drum 41. It is comprised so that it may convey in the direction opposite to a direction, and to discharge on the rocking | separation sorting plate 32. FIG.

Further, the lower surface of the rear face of the swing sorting plate 32 is connected by a swing drive mechanism 50 such as a crankshaft to enable swing drive.

Furthermore, the sorting wind is applied between the rosin pan 38 which is a free pan which sends the sorting wind between the upper and lower sides of both feed plates 33 and 34, and between the chaff sieve 35 and the grain sheave 36 and the grain sheave 36 below. By blowing air from the tuyere 22, which is the main blower, which is sent, diffusion of grains leaking down the crimp nets 31 and 41a is performed. The grains and straws of the grains are sorted into No. 1, No. 2, and straw by specific gravity screening and wind screening.

Moreover, the upper surface of the front feed plate 33 and the back feed plate 34 shape | molds a board body in wave shape, and has the shape which is easy to convey grain back.

The first conveyor 23 arranged so as to be arranged below the grain sheave 36 communicates with the grain conveyor 24 and takes out grains into the grain tank 12.

Moreover, the 2nd conveyor 25 is rolled out behind the 1st conveyor 23, and the 2nd material collect | recovered by the said 2nd conveyor 25 is conveyed to the 2nd reduction conveyor 26. As shown in FIG. And the 2nd thing is conveyed by the said 2nd reduction conveyor 26 to the 2nd processing apparatus 27 connected to the front side end part of the said 2nd reduction conveyor 26, and it is in the said 2nd processing apparatus 27 After the branch and the stem are removed by the second processing drum, it is configured to be reinserted into the sorting start portion of the swing sorting plate 32.

In this structure, the grain stem clamped by the feed chain 7 is detached by the rotation of the handling drum 6 provided in the handling chamber 20 of the threshing part 5 while being conveyed backwards. The straw or the like discharged is sent to the straw discharge cutter 52 at the rear and discharged to the field from the rear after cutting.

On the other hand, grains, straws, etc. leaking out of the crimp net 31 fall on the rocking | separation sorting plate 32, and are sent back while rocking | splitting sorting there. The grains, straws, and the like pass through the chaff sheave 35 or the grain sheave 36 and the like, and fall on the first tube while being guided to the grain flow plate. Wind sorting is performed by the sorting wind supplied from).

Further, a suction fan 60 is arranged above the rear end of the swing sorting plate 32 to suck straws delivered from the straw rack 40 by the suction fan 60, and a suction fan exhaust port 61 is provided. Is venting to the rear of the gas.

The structure of the said dust exhaust port 51 vicinity is demonstrated using FIG.

Grain, sorted straw, etc., in the rosin opening No. 2 processing drum 41 are discharged from the exhaust port 51. Moreover, when seen from the gas back surface of the suction fan exhaust port 61, the right side wall is notched and the dust removal guide guide exhaust port 61a is provided. In addition, a plurality of wind direction plates 87 are arranged in the suction fan exhaust port 61. The said wind direction plate 87 is comprised by the plate-shaped member, In this embodiment, the wind direction plate 87 is installed so that each may become substantially parallel at substantially equal intervals, and it inclines from right to left rear when viewed in plan view. . In addition, the wind direction plate 87 has a structure in which a plurality of the wind direction plate is interlocked, so that the wind direction can be adjusted.

However, the number of the wind direction plates 87 is not limited to this embodiment, and it is also possible to comprise so that the inclination angle of a left-right direction may be gradually arranged small or large. In addition, although the space | interval of the wind direction plate 61 and the wind direction plate 61 is arrange | positioned at substantially equal intervals, it can also be comprised so that the space | interval of the wind direction plate 87 and the wind direction plate 87 may be shortened so that it may turn to the right or left side. .

By setting it as such a structure, the straw discharged | emitted from the dust exhaust port 51 will be guide | induced to the place where it is exhausted from the suction fan exhaust port 61, and diffusivity improves.

At the rear of the suction fan exhaust port 61, a cutter device 81 of a discharge straw for cutting straw sent rearward by a feed chain 7 and a straw discharge chain (not shown) is disposed. The cutter device 81 of the discharge straw is supported by a low-speed shaft 52a having a plurality of low-speed rotary blades and a high-speed shaft 52b having a plurality of high-speed rotary blades in the horizontal direction of the body. The diffusion conveyor 82 for spreading the cut straw is similarly axially supported in the gas lateral direction.

In the conventional arrangement, when the straw discharged by the cutter device 81 of the discharge straw is cut, the aeration side of the discharge straw is located on the left side when viewed from the rear of the base, so that the volume of the cut straw is larger than the tip of the right ear. . The discharge straw on the aeration side is also sent to the right side by the diffusion conveyor 82, which spreads to some extent but does not eliminate the deflection.

Therefore, the cutter apparatus 81 of the said discharge straw is provided with the notch part 83a in the lower left side when it sees from the back of the base of the front cover 83, as shown in FIG. That is, FIG. 11 shows the state where the cutter apparatus 81 of the discharge straw was rotated to the rear about the support shaft on the right side and opened, and the gas was lowered in the lower part of the front cover 83 covering the front of the diffusion conveyor 82. When viewed from the rear side, the left side forms a notch portion 83a which is gradually opened.

In such a configuration, the exhaust air from the suction fan 60 disposed in front is blown backward from the suction fan exhaust port 61, thereby flowing into the cutter device 81 of the discharge straw from the notch portion 83a, and When the straw is diffused by the diffusion conveyor 82, the straw is exhausted and the diffusivity is improved.

In addition, in order to improve the diffusivity of dust exhaust, a diffusion plate 72 is provided below the suction fan exhaust port 61 and the dust exhaust port 51. As shown in FIG. 7 and FIG. 8, the diffusion plate 72 extends from the rear end of the swing sorting plate 32 to the rear in the substantially horizontal direction with the same width, and integrated with the swing sorting plate 32. It consists of a rocking | swinging structure, and rocking | swinging with the rocking | fluctuation of the rocking | separation selection plate 32. In this way, the straw sent from the straw rack 40 to the back and the straw discharged from the dust exhaust port 51 are oscillated and flowed down.

In addition, the dust removal guide 51 is provided on the rear right side of the fan cover 85 which covers the upper part of the suction fan 60 as the left side when seen from the gas rear surface of the said dust exhaust port 51. As shown in FIG. The dust guide guide 84 is a trapezoidal plate is disposed obliquely from the front of the dust exhaust port 51 to the rear left and fixed to the fan cover 85, the length of the back and forth direction of the dust exhaust port 51 The length of the vertical direction is substantially aligned with the length of the front-back direction, and the length of the up-down direction is arrange | positioned so that the upper end may correspond substantially to the upper end of the dust exhaust port 51, and the lower end is located below the dust exhaust port 51. As shown in FIG. The lower part of the exhaust guide guide 84 is notched in a substantially triangular shape so that the exhaust port 51 side becomes larger, and serves as the exhaust guide guide exhaust port 61a.

By this configuration, the dust discharged to the left side from the dust exhaust port 51 is discharged while being guided backwards obliquely from the dust guide guide 84, and is diffused and discharged to the left side than before. In addition, the dust discharged obliquely downward from the dust exhaust port 51 is blown downward and diffused by the exhaust air of the suction fan 60 sent from the dust guide guide exhaust port 61a. In this way, the dust discharged | emitted from the dust exhaust port 51 becomes a mass, and is not discharged to a field.

Moreover, since the said diffusion plate 72 is arrange | positioned under the suction fan exhaust port 61, it becomes possible to make the exhaust air from the suction fan 60 contact the diffuser plate 72. FIG. Thereby, the wind from the suction fan exhaust port 61 always strongly strikes, and the straw delivered from the straw rack 40 and the straw discharged from the dust exhaust port 51 are forcibly blown away. Thus, the straw will spread out without clumping and will look very good.

In addition, as shown in FIG. 9 and FIG. 10, it is also possible to attach the some guide 80 which consists of a plate-shaped member to the upper surface of the diffuser plate 72. In other words, the guide 80 is a substantially rectangular plate-like member, and each of them is provided on the diffuser plate 72 in parallel. In addition, the guide 80 has a configuration in which a plurality of sheets are interlocked so that the angle can be adjusted according to the dust removal amount. However, the guide 80 may be configured to gradually or smallly arrange the inclination angle in the left and right directions. In addition, although the space | interval of the guide 80 and the guide 80 is arrange | positioned at substantially equal intervals, it is also possible to comprise the space | interval of the guide 80 and the guide 80 short as much as right or left according to dust removal amount. In addition, the height of the guide 80 may be configured so that the left side is high and the right side is low, or the left side is low and the right side is high in accordance with the dust removal amount.

In the present embodiment, the guides 80 are arranged to be inclined from the left side to the right rear side in a plan view.

In such a configuration, even when the straw delivered from the straw rack 40 or the straw delivered from the dust exhaust port 51 is displaced to the left when viewed from the back of the gas, the guide 80 is uniformly diffused to distribute the straw. It becomes possible. In addition, the air blowing from the suction fan 60 is changed in the air blowing direction in the guide 80 to facilitate diffusion. In addition, the direction of the guide 80 is not limited only to the case disclosed in this embodiment, and the number of the guides 80 can also be changed.

The present invention relates to the technique of the straw discharge treatment unit for discharging the straw and the like discharged from the threshing unit of the combine to the field, it can be widely applied for agricultural use.

Claims (3)

A combine having a handling drum for threshing grains, a suction pan disposed at the rear of the handling drum to suck dust and discharged out of the gas, and a processing drum disposed parallel to the handling drum and disposed at the rear side of the handling drum. To A combine, characterized in that a diffuser plate is disposed below the suction drum outlet to uniformly diffuse discharged dust. The diffusion plate is a combine, characterized in that configured integrally to the rear end of the swinging screening device for sorting the threshing material. The method of claim 1, The diffusion plate is a combine characterized in that a plurality of guide plates for guiding dust in a predetermined direction on the upper surface of the plate body having a width substantially equal to the left and right width of the swing screening device.