JP2007151514A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester with improved diffusion of a diffusion plate without installing a separated power transmitting system. <P>SOLUTION: The invention relates to the combine harvester 1 is provided with a threshing cylinder 6 for threshing grain/straw, a suction fan 60 installed on the rear section of the threshing cylinder 6 to suction and discharge the dust to outside, and a second treating cylinder 41 for the dust discharge opening parallelly installed to the threshing cylinder 6 on the rear side of the threshing cylinder 6, wherein a diffusion plate 72 is installed on the downward of the exit of the suction fan 60 to uniformly diffuse the discharged dust. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a threshing unit of a combine, and more particularly, to a technology of a slaughter processing unit that discharges swarf and the like discharged from a threshing unit to a field.

Conventionally, it is known that sawdust discharged from a combine threshing device tends to be biased to one side of the combine traveling width. Unevenly discharged swarf or the like is dropped in a lump state, so that the appearance is very bad, and a sewage treatment mechanism that uniformly diffuses and discharges swarf or the like has been desired. In order to solve such a problem, a technique is known in which a diffuser plate is provided at the lower part of the dust discharge port for discharging the waste so that the uneven waste is diffused and discharged to the field. In addition, a technique for improving diffusion capacity by providing diffusion blades on a diffusion plate is also known (Patent Document 1).
JP 2001-204229 A

  However, as in the prior art, the provision of a diffusion shelf or diffusion plate at the rear of the Strollac is not sufficient to diffuse the lump of waste. Further, in the configuration in which the diffusion blades are attached to the diffusion plate, a separate power transmission system is required to rotationally drive the diffusion blades, which not only complicates the mechanism but also uses extra energy.

  This invention provides the combine which improved the diffusibility of the diffusion plate, without providing a power transmission system separately in view of the above subjects.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, in claim 1, a handling cylinder for threshing the cereal basket, a suction fan arranged at the rear of the handling cylinder for sucking dust and discharging it outside the machine, and arranged parallel to the handling cylinder In a combine equipped with a processing cylinder arranged on the rear side of the handling cylinder,
A diffusion plate for uniformly diffusing discharged dust is disposed below the processing cylinder outlet and below the suction fan outlet.

  According to a second aspect of the present invention, the diffusion plate is integrally configured at the rear end of the swing sorting device that sorts out cereals.

  According to a third aspect of the present invention, the diffusion plate is provided with a plurality of guide plates for guiding dust in a fixed direction on the upper surface of a plate body having a width substantially the same as the lateral width of the swing sorting device. .

  As effects of the present invention, the following effects can be obtained.

  According to the first aspect, by diffusing the dust with the diffusion plate and applying exhaust, it becomes possible to spread the dust more widely and uniformly, and the dust is not biased in one direction.

  According to the second aspect of the present invention, the diffusion plate can be swung together with the swinging device without the need for an independent power system by being configured integrally with the swinging device.

  According to the third aspect of the present invention, by providing the guide, the diffusion direction can be made constant to some extent, and the dust can be uniformly diffused with a higher probability.

Next, embodiments of the invention will be described.
FIG. 1 is a left side view showing an overall configuration of a combine according to an embodiment of the present invention, FIG. 2 is a plan view of the combine, and FIG. 3 is a right side view of the combine. 4 is a left side sectional view of the threshing part, FIG. 5 is a side sectional view of the rear part of the threshing part and the waste treatment part, FIG. 6 is a plan sectional view of the rear part of the threshing part and the waste treatment part, and 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. It is a front view of a waste cutter apparatus.

Below, the schematic structure of the combine 1 which is one Embodiment of the combine which concerns on this invention using FIG. 1 thru | or FIG. 3 is demonstrated.
The combine 1 harvests rice, and more specifically, harvests rice grains from the field while running through the fields (rice fields) and threshs the grains (rice straw). The combine 1 of a present Example is a self-removal type combine which sheds the ear | edge part attached to the rice straw among the harvested cereals.
Traveling crawlers 3L and 3R are provided on the left and right sides of the track frame 2 constituting the lowermost structure of the combine 1, and a machine base 4 is provided on the track frame 2. A threshing unit 5 is provided on the machine base 4. The threshing unit 5 includes a handling cylinder 6, a feed chain 7, and the like. A mowing unit 8 is provided in front of the threshing unit 5 on the machine base 4, and a waste disposal unit 9 is provided behind the threshing unit 5 on the machine base 4. The waste chain 10 is arranged at a position where its start end faces the feed chain 7 and its end faces the waste processing section 9, and receives waste (the grain straw after the rice straw has been threshed) from the feed chain 7, It is conveyed to the waste disposal unit 9.

The harvesting unit 8 harvests rice straw from the field and conveys it to the threshing unit 5.
The threshing unit 5 threshs rice straw from the cereal that has been conveyed from the cutting unit 8, and handles the tip of the cereal while holding the root of the cereal with the feed chain 7 and transporting it backward. The rice bran is brought into contact with the trunk 6 to separate (threshing) the rice straw from the cereal.

  The rice straw that has been threshed by the threshing unit 5 is separated into straw, swarf, dust, and the like by wind sorting and rocking sorting in the sorting unit provided below the threshing unit 5, and then the fine grains are lifted. It passes into the grain tank 12 provided in the right side of the threshing part 5 through the grain cylinder 11, and is stored. Further, a discharge auger 13 is connected to the Glen tank 12, and by operating the discharge auger 13, it is possible to carry out the fine particles stored in the Glen tank 12 to the outside of the Glen tank 12.

  A driving cabin 14 is provided in front of the Glen tank 12, and a driving operation unit 15 including a steering handle and a driver's seat 16 are provided inside the driving cabin 14. An engine 17 that is a drive source for the combine 1 is provided below the operation cabin 14.

Next, the threshing unit 5 will be described with reference to FIG.
As shown in FIG. 4, the handling chamber 20 formed in the threshing unit 5 is provided with a handling cylinder 6 that is pivoted in the front-rear direction of the machine body, and a cereal basket is inserted into the handling chamber 20 from the handling port 21. is doing. A crimp net 31 is stretched below the handling chamber 20, and the swing sorting plate 32 is supported so as to be swingable in the front-rear direction with the front end facing the crimp net 31.
The first and second feed plates 33 and 34 of the swing sorting plate 32 are arranged in two upper and lower stages below the crimp net 31 so that the Strollac 40 can swing up and down on the rear end side of the front feed plate 33. A chaff sheave 35 is provided continuously behind the rear end of the rear feed plate 34, and a grain sheave 36 is disposed below the chaff sheave 35. A fixed chaff portion 37 is disposed at the rear of the chaff sheave 35.

Further, as shown in FIGS. 5 and 6, a dust supply port second processing cylinder 41 is provided in parallel on the right side of the handling cylinder 6 in the airframe traveling direction (rear view), and the front part of the handling cylinder 6 is seen in a side view. 6 Wrapped at the rear of the handle 6, the grain that has not been processed by the handling cylinder 6, processed grain cuts, attached branches, etc., and cerealed from the crimp net 41 a disposed below the second processing cylinder 41 The grains are dropped onto the chaff sheave 35 and the fixed chaff portion 37.
Below the dust feeding port second processing cylinder 41, a transport body 86 is installed in the front-rear direction so as to overlap in parallel with the dust feeding port second processing cylinder 41 in a plan view. By receiving the grain falling from the dust feed port 2 processing cylinder 41 via the crimp net 41a, the grain or the like is forwarded, that is, the direction opposite to the feed direction of the crushed material by the dust feed port 2 processing cylinder 41 And is discharged onto the swing sorting plate 32.
Further, the lower surface of the rear portion of the swing sorting plate 32 is connected by a swing drive mechanism 50 such as a crankshaft so as to be swingable.

In addition, a dust feed fan 38 that is a pre-fan that feeds sorting air between the upper and lower sides of both feed plates 33 and 34, and a main blower that feeds sorting air between the chaff sheave 35 and the grain sheave 36 and below the sheave 36. Due to the air blow from a certain tang 22, the grain that has leaked through the crimp nets 31 and 41 a is diffused. Then, the grains and the grains are sorted into the first thing, the second thing, the sawdust, etc. by specific gravity sorting and wind sorting.
Note that the upper surfaces of the front feed plate 33 and the rear feed plate 34 have a shape in which the plate body is formed into a wave shape and the grains are easily conveyed backward.

The first conveyor 23 installed horizontally below the grain sieve 36 is configured to communicate with the cereal conveyor 24 and extract the grains to the grain tank 12.
In addition, a second conveyor 25 is provided behind the first conveyor 23, and the second item collected by the second conveyor 25 is conveyed to the second reduction conveyor 26. Then, the second product is conveyed by the second reduction conveyor 26 to the second processing device 27 connected to the front end portion of the second reduction conveyor 26, and the second processing cylinder in the second processing device 27. After the branch is removed, the structure is re-inserted into the sorting start portion of the swing sorting plate 32.

In such a configuration, the cereals sandwiched by the feed chain 7 are threshed by the rotation of the handling cylinder 6 provided in the handling chamber 20 of the threshing unit 5 while being conveyed rearward, and the waste and the like are rearward. It is sent to the waste cutter 52 and discharged to the field from behind after cutting.
On the other hand, the grains, swarf and the like that have leaked through the crimp net 31 fall on the swing sorting plate 32 and are sent rearward while being swing sorted. Then, the grains, swarf, etc. pass through the chaff sheave 35, the grain sheave 36, etc., and fall onto the topmost wall while being guided by the drifting grain plate, etc. Wind sorting is performed by the supplied sorting wind.

  Further, a suction fan 60 is disposed above the rear end of the swing sorting plate 32, and the suction fan 60 sucks the waste discharged from the Strollac 40, and the airframe from the suction fan exhaust port 61. It is discharged to the rear.

A configuration near the dust outlet 51 will be described with reference to FIG.
Dust and the like sorted from the grain by the dust feeding port second processing cylinder 41 are discharged from the dust discharging port 51. Further, a dust exhaust guide guide exhaust port 61a is provided by cutting out the right side wall of the suction fan exhaust port 61 when viewed from the rear of the machine body. A plurality of wind direction plates 87 are arranged inside the suction fan exhaust port 61. The wind direction plate 87 is constituted by a plate-like member. In this embodiment, the wind direction plates 87 are provided at substantially equal intervals so as to be substantially parallel to each other, and are inclined from the right side to the left side in plan view. . Further, a plurality of the wind direction plates 87 are interlocked so that the wind direction can be adjusted.
However, the number of the wind direction plates 87 is not limited to the present embodiment, and it is possible to gradually arrange the inclination angle in the left-right direction to be smaller or larger. Moreover, although the space | interval of the wind direction board 61 and the wind direction board 61 is arrange | positioned at substantially equal intervals, it is also possible to comprise the space | interval of the wind direction board 87 and the wind direction board 87 short, so that it goes to the right side or the left side.
With this configuration, the soot discharged from the dust exhaust port 51 can be easily guided to the place where the exhaust from the suction fan exhaust port 61 is hit, and the diffusibility is improved.

Behind the suction fan exhaust port 61, there is disposed a waste cutter device 81 for cutting waste fed rearward by the feed chain 7 and a waste chain (not shown). The rejection cutter device 81 is supported by a low-speed shaft 52a having a plurality of low-speed rotary blades in the left-right direction of the machine body and a high-speed shaft 52b having a plurality of high-speed rotary blades. A diffusion conveyor 82 for diffusing the bag is also pivotally supported in the left-right direction of the machine body.
In the conventional arrangement, when the waste is cut by the waste cutter device 81, since the stocker side of the waste is located on the left side of the aircraft rear view, the volume of the cut waste is from the tip side of the right side. Also grows. The stocker-side waste is also sent to the right side by the diffusion conveyor 82 and diffused to some extent, but the bias has not been eliminated.

  Therefore, as shown in FIG. 11, the waste cutter device 81 is provided with a notch 83a at the lower left portion of the front cover 83 when viewed from the rear of the machine body. That is, FIG. 11 shows a state in which the waste cutter device 81 is opened rearward about the right support shaft, and is opened in the lower part of the front cover 83 that covers the front of the diffusion conveyor 82. A cutout portion 83a is formed on the left side which is gradually opened.

  With this configuration, the exhaust air from the suction fan 60 disposed in the front is blown rearward from the suction fan exhaust port 61, so that it flows into the exhaust cutter device 81 from the notch 83a and is cut. When the discharged waste is diffused by the diffusion conveyor 82, the exhaust hits, and the diffusibility is further improved.

  Further, a diffusion plate 72 is provided below the suction fan exhaust port 61 and the dust exhaust port 51 in order to improve dust diffusibility. As shown in FIGS. 7 and 8, the diffusion plate 72 includes a plate extending in the substantially horizontal direction with the same width from the rear end of the swing sorting plate 32, and is configured integrally with the swing sorting plate 32. Thus, it is configured to swing with the swing sorting plate 32 swinging. In this way, the waste generated from the Strollac 40 and the waste discharged from the dust outlet 51 are received and swung down.

  In addition, a dust discharge guide guide 84 is provided on the left side of the rear side of the airframe rear view of the dust outlet 51 and on the right side of the rear portion of the fan cover 85 that covers the upper portion of the suction fan 60. The dust discharge guide guide 84 is a substantially trapezoidal plate disposed obliquely to the left and rear from the front of the dust discharge port 51 and fixed to the fan cover 85. The length in the front-rear direction is the dust discharge port 51. The upper and lower lengths are substantially aligned with the upper end of the dust outlet 51 and the lower end is positioned below the dust outlet 51. Are arranged. The lower part of the dust discharge guide guide 84 is cut out in a substantially triangular shape so that the dust discharge port 51 side becomes larger, and serves as the dust discharge guide guide exhaust port 61a.

  With this configuration, the dust discharged to the left side from the dust outlet 51 is discharged while being guided obliquely rearward against the dust guide guide 84, and is diffused and discharged to the left as compared with the conventional case. . Further, the dust exhausted obliquely rearward and 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 from the dust outlet 51 is not released into the field as a lump.

  Furthermore, since the diffusion plate 72 is disposed below the suction fan exhaust port 61, the exhaust air from the suction fan 60 can be applied to the diffusion plate 72. As a result, the wind from the suction fan exhaust port 61 is always strongly applied, so that the soot discharged from the Strollac 40 or the soot discharged from the dust outlet 51 is forcibly blown away. Therefore, the sawdust is diffused without being hardened, and the appearance is greatly improved.

Further, as shown in FIGS. 9 and 10, a plurality of guides 80 made of plate-like members can be attached to the upper surface of the diffusion plate 72. That is, the guide 80 is a substantially rectangular plate-like member, and each guide 80 is erected on the diffusion plate 72 in parallel. The guide 80 is configured such that a plurality of guides are interlocked, and the angle can be adjusted according to the amount of dust. However, the guide 80 may be configured so that the inclination angle in the left-right direction is gradually reduced or increased. Moreover, although the interval between the guide 80 and the guide 80 is arranged at substantially equal intervals, the interval between the guide 80 and the guide 80 can be shortened toward the right side or the left side in accordance with the amount of dust. Furthermore, the height of the guide 80 can be configured such 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 amount of dust.
In the present embodiment, the guide 80 is disposed so as to be inclined from the left side toward the right rear side in a plan view.

  By configuring in this way, the guide 80 is guided even when the waste discharged from the Strollac 40 or the waste discharged from the dust outlet 51 is discharged to the left when viewed from the rear of the machine body. And can be diffused uniformly. Further, the exhausted air from the suction fan 60 strikes the guide 80 and the direction of the exhausted air is changed, so that the diffusion can be promoted. The direction of the guide 80 is not limited to the case shown in this embodiment, and the number of guides 80 can be changed.

The right view which showed the whole structure of the combine which concerns on one Example of this invention. The top view of a combine. The left view of a combine. Side surface sectional drawing of a threshing part. Side surface sectional drawing of a threshing part rear part and a waste disposal process part. Plan sectional drawing of the rear part of a threshing part, and a rejection process part. The rear view of a combine (near discharge port). FIG. 3 is a plan view of a swing sorting plate and a diffusion plate. The rear view of a combine (near discharge port). FIG. 3 is a plan view of a swing sorting plate and a diffusion plate. The front view of a waste cutter apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 5 Threshing part 6 Handle cylinder 32 Oscillating sorter plate 51 Dust outlet 60 Suction fan 61 Suction fan exhaust port 72 Diffusion plate 80 Guide

Claims (3)

A handling cylinder for threshing cereals, a suction fan that is arranged at the rear of the handling cylinder and sucks dust out of the machine, and is arranged in parallel with the handling cylinder at the rear side of the handling cylinder In a combine equipped with a processed cylinder,
A combiner characterized in that a diffusion plate for uniformly diffusing discharged dust is disposed below the processing cylinder outlet and below the suction fan outlet.   2. A combine according to claim 1, wherein the diffusion plate is formed integrally with a rear end of an oscillating sorting device for sorting cereals. 2. The diffusion plate according to claim 1, wherein a plurality of guide plates are provided on the upper surface of a plate body having a width substantially the same as a lateral width of the swing sorting device to guide dust in a certain direction. Combine as described.