JP3366464B2 - Mowing unit slide type combine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a slidable combiner in which a reaper can be switched between right and left in a small combine. [0002] The applicant of the present invention has developed a pre-processing mechanism of a cutting section in order to prevent uncutted culms in the vicinity of the outer end of a crawler from falling down due to mud in work in a soft field. An application has been filed for a combine that slides to the left and right, and in accordance with that, rotates the grain culm transport mechanism in the reaping unit to the left and right to switch between the inside and outside positions. [0003] However, conventionally, the left and right slides of the pretreatment mechanism and the grain culm transfer mechanism are performed independently, so that the operation becomes complicated, and both mechanisms of the left and right slides are not used. There was also a risk that a positional shift would occur in the inherited portion, and the cereal stem inheritance would not be successful. The present invention uses the following means in order to solve the above problems.
Left and right parallel links are formed in the combine harvester
Raising device via slide arms 10L and 10R
Pre-processing mechanisms such as the setting and the cutting blade are slidably supported left and right,
Furthermore, the grain culm transport mechanism behind it rotates independently,
In the position switchable configuration, some of the pre-processing mechanism
Above, an interlocking guide rod 37 having an arc shape in a side view is erected.
When the pre-processing mechanism is slid left and right,
Is also linked by the interlocking guide rod 37.
To slide left and right, and the handling depth of the grain culm transport mechanism
Up and down rotation for adjustment is allowed by the interlocking guide rod 37
Between the left and right fixed positions of the slide arms 10L and 10R.
The rotation amount and rotation trajectory of the
The rotation trajectory X of the processing mechanism and the rotation trajectory at the front end of the grain culm transport mechanism
The trace Y is set so that it is substantially parallel and has the same amount of rotation.
And the harvest input key in the combine harvester.
A vertical support rod 8 projects forward from the middle of the base 1 and
A lateral support rod 9 is fixed to the tip of the holding rod 8, and
At the front, at the left and right ends,
10L ・ 10R, slide arm after sliding
10L and 10R are configured to be fixed at two positions on the left and right . [0005] By rotating the pretreatment mechanism of the mowing part and the grain culm transport mechanism in parallel in the left and right slide and making the rotation amounts substantially the same, the left and right slides of both mechanisms are linked. Is possible, and when either mechanism is slid left or right,
The other mechanism can also be configured to slide at the same time. The problems and constitutions to be solved by the present invention are as described above. Next, embodiments of the present invention shown in the attached drawings will be described. FIG. 1 is a front view of the slidable combine harvester,
2 is a side view of the cutting unit, FIG. 3 is a plan view showing a lower support structure of the cutting unit, FIG. 4 is a plan view showing a slide structure of a pre-processing mechanism in the cutting unit, and FIG. FIG. 6 is a plan view showing a driving system of a pre-processing mechanism in the mowing section, and FIG. 7 is a view showing the same phase rotation of the pre-processing mechanism and the grain culm transport mechanism in the mowing section slide. FIG. 8 is a front view showing a drive system of the raising device, FIG. 9 is an internal plan view of the split transmission case, FIG. 10 is an internal side view thereof, and FIG. , FIG. 12 is a plan view of a grain culm transport mechanism, and FIG.
Is a side view of the same. The overall structure of the combine will be described with reference to FIGS. The combine is a left and right crawler 44L
The chassis 4 is mounted on a crawler running device supporting the 44R.
3 is mounted, an engine (not shown) is mounted on the front right side of the chassis 43, and a transmission case M is further disposed in front of the chassis 43, and left and right crawlers 44L and 44R are mounted on the transmission case M. Drive wheel axle 45
Is suspended. On the upper part of the chassis 43, on the left side in the running direction is mounted a threshing sorter D in which a feed chain 46 and a handling cylinder 47 are installed, and on the right side, a paddy tank 49 is disposed above, and threshing is performed. Paddy is stored from the sorting unit D on the fry conveyor 48, and a padding section for paddy is provided below the paddy pad. The paddy in the paddy tank 49 can be stored in the paddy pad placed. A front portion of the chassis 43 has a right side portion extending forward, and a front column 50 and a seat 51 are provided above the front portion.
An operation section S is provided on which a seat and the like also serving as an engine room, which is disposed at an upper portion thereof, is mounted. And the like. A reaping section K is supported on the left side of the operation section S, that is, in front of the left side of the chassis 43. Less than,
The configuration of the reaper K will be described in detail with reference to FIGS. A reaping input case 1 is disposed laterally above the front part of the chassis 43, and inside the reaping input case 1,
As shown in FIG. 4, a cutting input shaft 3 that projects the cutting input pulley 2 to the right is pivotally supported. The cutting input shaft 3 protrudes to the left, enters the cereal culm transport drive case 4 as shown in FIG. 3, and is supported in the cereal culm transport drive case 4 in a substantially vertical direction. The shaft 5 is meshed with a bevel gear. The grain stalk transport mechanism will be described with reference to FIGS. The upper end of the grain culm transport drive shaft 5 supports the ear tip transport device 6 and the lower end thereof supports the vertical transport device 7 so as to be rotatable left and right, and the driving sprocket of each grain culm transport device 6. Is attached, and each grain stalk transport device 6.
7 is transported and driven. Both grain culm transport devices 6 and 7 are integrally connected, and are configured to freely rotate left and right with respect to the grain culm transport drive case 4 around the grain culm transport shaft 5 as a rotation fulcrum. I have. [0011] In these grain culm transport devices 6 and 7, the ear tip transport device 6 uses the tip portion of the grain culm inherited from the pre-processing mechanism described later.
The vertical transport device 7 transports the root portion backward while holding the root portion. During transport, the vertical transport device 7 gradually raises the root portion to make the cereal stem substantially horizontal at the rear end portion, and threshing. This is passed on to the feed chain 46 of the sorting unit D. Next, the support structure of the pre-processing mechanism of the cutting unit K will be described with reference to FIGS. The pre-processing mechanism is a part in front of the reaping unit K that scrapes uncut culms into the reaping unit K, cuts the culms, and conveys the culms to the culm conveying devices 6 and 7. It comprises a device (raising case 27), a scraping belt 29, a scraping wheel 31, a cutting blade 36 and the like. These pre-processing mechanisms are integrally supported by a lateral transmission case 19 disposed laterally below the mowing part K, and the lateral transmission case 19 includes a parallel lateral support rod. 9, a slide arm 10L which forms a parallel link interposed at the left and right ends thereof.
They are slidably connected to each other via 10R.
The horizontal support rod 9 is fixed to the tip of the vertical support rod 8 projecting forward from the middle of the mowing input case 1, that is, fixed to the mowing input case 1. The horizontal transmission case 19 and the pre-processing mechanism are supported so as to integrally slide left and right with respect to the provided vertical support rod 8 and horizontal support rod 9. As shown in FIG. 2, the vertical support rod 8 has a curved shape in a side view (because no transmission shaft is provided, the vertical support rod 8 can be bent), and is disposed immediately below it. Interference with the mission case M is avoided. Furthermore, since both the vertical support rod 8 and the horizontal support rod 9 are arranged in a fixed manner,
In the left and right slide of the reaper K, the transmission case M
There is no contact between the crawlers 44L and 44R with the front ends. With such a configuration, the front-rear distance between the crawler front end and the cutting unit can be reduced, and a compact combiner having a short front-rear length of the cutting unit can be configured. Parallel link slide arms 10L and 10L
The configuration of R will be described in detail. As shown in FIG. 4 and the like, the rear ends of the left and right slide arms 10L and 10R are pivotally supported by the left and right ends of the lateral transmission case 19 so as to be rotatable left and right.
It is pivotally supported by link brackets 23L and 23R fixed to the left and right ends of the lateral transmission case 19. At the tip of the left slide arm 10L, two right and left locking holes are formed. On the other hand, in the left link bracket 23L, a fitting hole for fitting the release lever 24 is formed. By inserting the release lever 24 into one of the two left and right locking holes at the tip of the left slide arm 10L through the fitting insertion hole, the slide arms 10L and 10R are fixed at the two left and right positions. . When the release lever 24 is rotated, the release lever 24 naturally comes out of the locking hole of the left slide arm 10L, and the slide arm 10L
・ 10R is rotatable and can slide to the other position. In this embodiment, the lateral transmission case 19
Although the slide arms 10L and 10R pass through the lower side, the lateral transmission shaft 20 can be provided internally to protect the lower side of the lateral transmission case 19 that should be prevented from being damaged. However, if it is disposed below the horizontal transmission case 19, the slide arm 10L can be attached to mud and stocks when working in wetlands.
・ 10R sometimes gets caught. From this perspective,
Slide arms 10L and 10 are placed above the horizontal transmission case 19.
It is also conceivable to arrange R. The slide arm 10L which is a parallel link
As shown in FIG. 7, the rotation amount and the rotation locus between the left and right fixed positions of the 10R are the rotation locus X of the pre-processing mechanism and the rotation locus Y of the front end of the grain culm transport device 6, 7 in the left and right slide. Are set to be parallel and have the same amount of rotation. Therefore, it becomes possible to interlock the pretreatment mechanism and the grain stalk transport mechanism, and if the pretreatment mechanism and the grain stalk transport apparatus are linked,
If one slides, the other will slide in conjunction. 2 or 1 above a right-side scraping case 30R, which is a part of the pre-processing mechanism.
As shown in FIG. 3, an interlocking guide rod 37 having an arc shape in a side view is erected, and a guide member 38 is arranged on the interlocking guide rod 37 so as to be slidable up and down. The rear end of the interlocking rod 39 is slidably fitted into the cylindrical portion 39a at the tip end of the interlocking rod 39 via the cushioning material 38a. It is slidably fitted in a cylindrical body 40 fixed to the tip of a rear interlocking rod 41 that is extended. Thus, when the pre-processing mechanism is slid left and right, the cereal culm conveying devices 6 and 7 are also slid left and right in conjunction therewith. In addition, regarding the grain stalk transport device, the grain stalk transport drive case 4 is pivotally supported on the reaping input case 1 so that the spike transport device 6 and the vertical transport device 7 can be rotated. The handling depth must be adjusted by vertically turning together. This vertical rotation is performed at each slide position by the interlocking rod 39.
The guide member 38 at the tip is allowed to move by sliding up and down on the interlocking guide rod 37. With the above-described configuration, the sliding operation of the mowing unit is performed by the slide arm 10L which is a parallel link.
10R is released by rotating the release lever 24,
When the pre-processing mechanism is turned to the left or right, the coupling mechanism between the pre-processing mechanism and the cereal culm transport mechanism causes the cereal culm transport mechanism to rotate integrally in the same direction and reach a fixed position. This is an operation of fixing the release lever 24 and fixing the pretreatment mechanism and the grain culm transport mechanism at the positions. The rotation fulcrum of the left slide arm 10L is located on an extension of the left weeding rod 25L described later. In addition, the left rake wheel 31L described later at the left slide position is provided.
Is located on the left side of the center (rotary shaft 32L). That is, both slide arms 10L and 10L
Although the amount of the slide stroke to the left side of R is limited, even at the time of the left slide, the left slide arm 10L does not hinder the conveyance of the grain stem,
The grain culm transport path can be widened, and the grain culm is scraped by the scraping belts 29L / 29R and scraping foils 31L / 31R, and is smoothly passed to the grain culm transport mechanism at a later time while being moved to the left. It is done. The structure of the pre-processing mechanism will be described. Weeding rods 25L, 25R, 25M extend forward from the left end, right end, and center of the lateral transmission case 19, and at the front end of each weeding rod 25L, 25R, 25M, a weeding plate 26L,
26R and 26M are fixed. Left and right weeding rod 25L ・ 2
In 5R, raised case supporting rods 25a are extended immediately behind the weeding plates 26L and 26R, and the rear surfaces of the raised cases 27L and 27R are fixed to the raised case support rods 25a and 25a, respectively. The left and right weeding plates 26L and 26R are respectively disposed at the outer ends of the case 27L and 27R when viewed from the front, and a central weeding plate 26M is disposed between the left and right raised cases 27L and 27R. It is. Raised chains 28 each having a lug are wound around the raised cases 27L and 27R.
Is conveyed and driven to vertically raise the culm weeded by the weeding plates 26L, 26R, 26M, and the case 27
The culm is raked between L and 27R. Ragged scraping belts 29L and 29R are supported from the lower rear ends of both raising cases 27L and 27R. The rear portions thereof are supported on star wheel-shaped left and right scraping wheels 31L and 31R. In addition, both rake belts 29L and 29R are rake cases 30L and 30R, respectively.
The upper ends are covered, and the front ends of both scraping cases 30L, 30R are supported via brackets on raising case supporting rods 25a, 25a projecting from the left and right weeding rods 25L, 25R. The rear portion of the rake case 30R and the rotary drive shaft 32R of the right rake wheel 31R are supported by a later-described cutting blade and rake drive case 33 protruding from the lateral transmission case 19, and the rear portion of the left rake case 30L. The rotation shaft 32L of the left scraping wheel 31L is supported by a support rod 34 protruding from the transmission case 21 to be described later.
The left and right scraping belts 29L and 29R and the scraping wheels 31L and 31R are transported and driven so that the two right and left grain culms are collected at the central portion and transported rearward. A cutting blade 36 is provided between the left and right weeding rods 25L and 25R below the scraping wheels 31L and 31R.
Is laid horizontally. The cutting blade 36 slidably drives the driving blade 36a on the fixed receiving blade 36b, and the scraping wheel 31L.
The structure is such that the root of the grain stalk that has been scraped rearward at 31R is cut off. As shown in FIG. 6 or FIG. 7, the rear ends of the merging portions of the left and right scraping belts 29L and 29R and the scraping foils 31L and 31R are connected to the front and rear conveying devices 6 and 7 of the grain stem conveying device. The front end portion is polymerized in a plan view, and the scraping case 3
The guide rods 35 along the 0L / 30R are
Scraping belt 29L / 29R and Scraping wheel 31L / 31
The grain stalks raked in R are smoothly guided to the central portion to be collected, and further guided to the front ends of the tip transfer device 6 and the vertical transfer device 7, and the tip side of the grain stalk is transferred to the tip transfer device 6. , The root side is passed to the vertical transport device 7. And, even with the left and right slide, the above-described configuration holds the left and right positional relationship between the pretreatment mechanism and the cereal culm transport mechanism, and does not hinder the transfer of cereal culm from the pretreatment mechanism to the cereal culm transport mechanism. It is. Next, the drive system of the pre-processing mechanism is shown in FIG.
This will be described with reference to FIGS. A swing transmission case 11 substantially in the front-rear direction in plan view is provided at the upper end of the cutting input case 1 in the middle.
The pivoting transmission case 11 is rotatable left and right with a pivot point to the reaping input case 1 as a fulcrum. The swing transmission case 11 has a slide receiving case 11b formed in the middle thereof, and a slidable front sliding case 11a projecting forward from the sliding receiving case 11b. A rear portion is slidably supported in the slide receiving case 11b. Further, the front sliding case 11a
Inside, the front portion of the swing transmission shaft 12 is supported so as not to slide back and forth, and the rear portion of the swing transmission shaft 12 projecting rearward from the front sliding case 11a is provided with a swing transmission shaft. The case 11 is supported so as to be slidable back and forth in the case 11. The rear end of the oscillating transmission shaft 12 is meshed with a bevel gear shaft 3a branched from an intermediate portion of the cutting input shaft 3, and the oscillating transmission shaft 12 slides with respect to the rear bevel gear 12b. It is movably fitted, and by sliding of the swing transmission shaft 12,
Gear engagement with the bevel gear shaft 3a is maintained. On the other hand, a lateral transmission shaft 20 is rotatably supported in a lateral transmission case 19 for supporting the above-mentioned pre-processing mechanism. A left-raising transmission shaft 22 for driving the chain 28 is supported by the left-raising transmission case 21 so as to project therefrom, and the upper end is left-raised and meshes with the upper sprocket shaft 27a of the case 27L with a bevel gear. . And
The right end is pivotally supported in a lower right transmission case 17 which is vertically provided below a split transmission case 16 disposed in the vicinity of the upper and lower centers of the right end of the cutting unit K in front view as shown in FIG. 1 or FIG. The lower right transmission shaft 18 is in mesh with the lower end of the bevel gear. The upper end of the lower right transmission shaft 18 is moved into the upper right transmission case 14 in the split transmission case 16 by gear engagement as shown in FIGS. 9 and 10 or by chain transmission as shown in FIG. The power is transmitted to the upper right transmission shaft 15 which is rotatably supported. The transmission structure for gear engagement will be described. A bevel gear 18a is attached to the upper end of the lower right transmission shaft 18, and the lower end of the upper right transmission shaft 15 is rotatably supported in the split transmission case 16 via an intermediate gear 16a. It is engaged with the attached bevel gear 15a. The chain is driven by a sprocket 1
8a 'is attached to the lower right
a 'is attached, and a chain 16b is wound between both sprockets. In this manner, the upper end of the upper right transmission shaft 15 transmitted from the lower right transmission shaft 18 is meshed with the upper sprocket shaft 27a of the right-raising case 27R by a bevel gear. A bevel gear case 13, which is an input case of a pre-processing mechanism, is fixedly mounted at the end of the front swing case 11a, and the bevel gear case 13 is provided in the middle of the upper right transmission case 14. A rocking transmission shaft 12 protruding forward from the front rocking case 11a is inserted therein, and the tip thereof becomes a bevel gear 12a. It is meshed with a bevel gear 15b provided around the transmission shaft 15. That is, the driving force of the mowing input shaft 3 drives the upper right transmission shaft 15 via the oscillating transmission shaft 12 and directly raises the right to directly raise the chain 27 of the case 27R. The transmission is transmitted from the transmission shaft 15 to the lower right transmission shaft 18 via the split transmission case 16, drives the horizontal transmission shaft 20, and is further raised to the left by the transmission shaft 22.
, And drives the raising chain 28 of the left raising case 27L. Also, as shown in FIG. 6, a cutting blade / scraping transmission shaft 42 meshing with a bevel gear from a middle portion on the right side of the horizontal transmission shaft 20.
2 protruding forward and fixed to the lateral transmission case 19.
It is supported in the illustrated cutting blade / scraping transmission case 33,
The front end thereof is connected to the driving blade 36a of the cutting blade 36 to slide and drive the driving blade 36a. The driving blade 36a is worm-meshed in the middle of the driving blade 36a to rotate the driving shaft 32R of the right scraping wheel 31R and the right scraping belt 29R. It is transmitted to. The left rake wheel 31L and the rotation shaft 32L of the rake belt 29L are
Scraping wheel 31L for driven scraping wheel 31R
, And is driven to rotate. That is, the cutting blade 36, the squeezing belt 29, and the squeezing wheel 31 can be driven by one cutting blade / scraping transmission shaft 42, and the configuration of the slicing blade / scraping transmission case 33 is simplified. ing. The reason for the projecting from the position closer to the right side is due to transportation reasons. However, as the harvesting progresses, the combine tank 4
Since the weight is applied to the right part on which 9 is mounted, it is better to simplify in this way and to reduce the weight of the cutting blade / screw drive transmission case 33 as much as possible. Of these drive systems, the left-raising transmission case 21, the lower right transmission case 17, the split transmission case 16, the upper right transmission case 14, and the cutting blade / scraping transmission case 33 are further moved relative to the horizontal transmission case 19. It is fixed and slides together with the left and right slide of the pretreatment mechanism. At this time, the swing transmission case 11 rotates left and right as shown in FIG. 4. However, since the swing transmission case 11 has a long front-rear length, the left and right slide arms 10 </ b> L
The stroke amount becomes larger than the stroke amount due to the left and right sliding of the R, and therefore, the displacement amount before and after is also increased. If the amount of longitudinal displacement is not reduced to the same amount as the amount of longitudinal displacement due to the rotation of the left and right slide arms 10L and 10R, the right and left rotation is impossible. Therefore, when sliding to the left, as shown in FIG. 5, the swing transmission shaft 12 and the front sliding case 11a are slidable as described above so as to slide rearward with respect to the swing transmission case 11. It is. The present invention has been configured as described above.
The following effects are obtained. That is, in the harvesting section of the combine, in which the pre-processing mechanism and the grain culm transport mechanism can be independently slid left and right, as in claim 1 , both the pre-processing mechanism and the grain culm transport mechanism are switched when the left and right positions are switched. Since it is configured to rotate substantially in parallel, it is possible to connect both mechanisms and to simultaneously slide left and right, and it is possible to provide a combiner of the reaping unit that is easy to slide. In addition, since the positional shift in the left and right positions does not cause a positional shift in the inheriting portion between the pre-processing mechanism and the grain culm transport mechanism, it does not hinder the inheritance of the grain culm. Transport is obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a sliding type combine harvester. FIG. 2 is a side view of the reaper. FIG. 3 is a plan view showing a lower support structure of the reaper. FIG. 4 is a plan view showing a slide structure of a pre-processing mechanism in the reaper. FIG. 5 is a partial plan view showing a rotation and sliding structure of the swing transmission case 11. FIG. 6 is a plan view showing a driving system of a pre-processing mechanism in the reaper. FIG. 7 is a schematic plan view showing the same-phase rotation of a pretreatment mechanism and a grain culm transport mechanism in a cutting unit slide. FIG. 8 is a front view showing a drive system of the raising device. FIG. 9 is an internal plan view of the split transmission case. FIG. 10 is an internal side view of the same. FIG. 11 is an internal plan view when the chain transmission is used. FIG. 12 is a plan view of a grain culm transport mechanism. FIG. 13 is a side view of the same. [Description of Signs] K Cutting unit M Transmission case 1 Cutting input case 3 Cutting input shaft 4 Grain culm transfer drive case 5 Grain culm transfer drive shaft 6 Ear transfer device 7 Vertical transfer device 8 Vertical support rod 9 Horizontal support rod 10L Left slide Arm 10R Right slide arm 19 Horizontal transmission case 20 Horizontal transmission shaft 23 Link bracket 24 Release lever

Continuation of the front page (56) References JP-A-2-283210 (JP, A) JP-A-5-153838 (JP, A) JP-A-48-18019 (JP, A) JP-A-47-42119 (JP, A) , A) Japanese Utility Model Hei 5-15728 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01D 34/28-69/00

Claims (1)

(57) [Claims 1] In the reaping section of the combine, right and left flat
Via slide arms 10L and 10R forming row links
And slide the pre-treatment mechanism such as the raising device and the cutting blade left and right.
As much as possible, and the culm transport mechanism behind it is independent.
In the configuration where the left and right positions can be switched,
An arcuate interlocking guide rod in side view above a part of the
37 is erected and the pre-processing mechanism is slid left and right.
As a result, the rear culm transport mechanism is also
7 to slide left and right in conjunction with
The vertical rotation for adjusting the handling depth of the feeding mechanism
7 to the left of the slide arms 10L and 10R.
The rotation amount and rotation trajectory between the right fixed positions are when sliding left and right.
, The rotation trajectory X of the pre-processing mechanism and the grain stalk transport mechanism
The rotation trajectory Y of the front end is substantially parallel, and the rotation amount is substantially the same.
In the combine harvester.
The vertical support rod 8 forward from the middle of the cutting input case 1
And a horizontal support rod 9 is fixedly mounted at the end of the vertical support rod 8.
Immediately before the support rod 9, the left end and the right end
Provide slide arms 10L and 10R, and slide
Ride arms 10L and 10R should be fixed in two positions on the left and right
A slidable combine harvester, characterized by a well-structured configuration .