JP2009278901A - Seven-row or eight-row reaping combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To narrowly constitute the whole width in a seven-row or eight-row reaping combine harvester. <P>SOLUTION: A pretreatment part 5 is liftably and lowerably supported on a vertical transmission case 12 and power from an engine is input through the vertical transmission case 12. The front end part of the vertical transmission case 12 is connected to a lower transmission case 21 extended right and left at the under side of the pretreatment part 5 and an intermediate transmission case 27 for transmitting power to a raising transmission case 25 is erected upward from the end part of the lower transmission case 21. A raising speed change gear for regulating the raising speed of a raising apparatus for raising grain culms in a field is arranged at a connection part between the intermediate transmission case 27 and the raising transmission case 25. The raising speed change gear is arranged inside the machine body and the whole width of the pretreatment part is constituted small. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a combine that threshs while harvesting cereal grains, and more particularly, to a large combine that cuts 7-8.

  Conventionally, in an 8-row combine combine that has a pulling device that raises cereals that have been weeded by a divider in a pre-processing unit that cuts cereals and conveys them to the rear of the aircraft, according to the state of cereals in the field In order to be able to adjust the pulling speed, there has been devised one that is raised in the transmission process and provided with a transmission (see Patent Documents 1 and 2).

Japanese Utility Model Publication No. 55-81534 JP 05-268822 A

  In order to widen the cutting width of the pre-processing unit, the pulling transmission is arranged so as to protrude from the side of the pre-processing unit to the outside of the machine body. In the large-scale combine, when the pull-up transmission is configured to protrude outward from the fuselage, the entire width thereof becomes too large.

  In particular, when an 8-row combine combine is configured to match a one-size planted field, its full width exceeds 2500 mm, which is the standard established by laws and regulations on public roads. It was necessary to make the configuration narrow.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a combine that solves the above-mentioned problems by providing an elevating transmission device on the inner side of the machine body.

The invention according to claim 1 is caused by a plurality of weed bodies (13) arranged in parallel in the left-right direction of the machine body, and a pulling device (15) for raising the cereals weeded by these weed bodies (13). And a stock-carrying device (17) that stirs the stock of cereals and a cereal carrying device (20) that conveys the cereals harvested by the reaping device (16) to the threshing unit (7). In the combine (1) for cutting the pre-processing unit (5) on the 7 or 8 cuts provided at the front of the fuselage,
The pre-processing unit (5) transmits power from the engine to the pre-processing unit (5), the power is transmitted from the vertical transmission case (12), and the pre-processing unit A lower transmission case (21) extending substantially across the entire width of the lower part of the part (5), and a pulling transmission case (15) for transmitting power to the pulling device (15) at the upper part of the pretreatment part (5) 25) and an intermediate transmission case (27) that is erected upward from an end of the lower transmission case (21) and transmits power to the pulling transmission case (25),
A pulling transmission (26) for shifting the pulling device (15) is provided on the inner side of the intermediate transmission case (27).
There is a 7 or 8 cut combine (1) characterized by

  In addition, although the code | symbol etc. in a parenthesis is for contrast with drawing, it does not have any influence on a claim by this.

  According to the first aspect of the present invention, the full width can be narrowed even in a large combine such as seven-row cutting or eight-row cutting by providing the elevating transmission on the inner side of the machine body. In addition, since the entire width of the fuselage is narrowed, even with an 8-row combine that supports single-scale planting, the width of the pretreatment portion can be kept within 2500 mm, and public road travel is possible.

  The combine 1 which concerns on embodiment of this invention is demonstrated along drawing below. Note that the direction in the description is based on the state where the operator is seated on the aircraft.

<Embodiment 1>
As shown in FIGS. 1 to 3, the combine 1 is an eight-crop combine that supports single-scale planting, and has a body 3 supported by a pair of left and right crawler travel devices 2 and 2. A cabin 6 that is operated by an operator is provided in front of the machine body 3 and a pretreatment unit 5 is attached. The left and right width of the pretreatment unit 5 is the full width W of the combine 1. In addition, a threshing unit 7 for threshing the cereal and a post-processing unit 9 for processing the waste are provided behind the preprocessing unit 5, and the threshed grains are lateral to the threshing unit 7 and The water is temporarily stored in a glen tank 10 provided behind the cabin 6 and discharged to the outside by the discharge auger 11.

  As shown in FIGS. 4 to 7, the pre-processing unit 5 is supported by a vertical transmission case 12 that transmits power from an engine (not shown) to the pre-processing unit 5 so as to be movable up and down. A reaping device comprising a plurality of dividers 13 (herbaceous bodies) provided at the front portion, a pulling device 15 for raising the cereals that have been weeded behind the dividers 13, and a reciprocating cutting blade 16a for reaping the cereals. 16, a stock scraper 17 for scraping the stock of the raised grain straw, and a grain straw transporting device 20 for transporting the grain harvested by the harvesting device 16 and delivering it to the feed chain 19 of the threshing unit 7. It consists of and.

  A front end portion of the vertical transmission case 12 is connected to a lower transmission case 21 extending to the left and right over substantially the entire width of the lower end portion of the pretreatment unit 5. Power is transmitted. Further, as shown in FIG. 5, the lower transmission case 21 is attached with a lateral frame 22 extending in the vehicle body width direction in front of the lower transmission case 21 via brackets 21a and 21a. The horizontal frame portions 21 and 22 including the frame 22, the plurality of divider frames 23 that protrude from the horizontal frame 22 toward the front of the machine body, and the divider 13 is attached to the tip thereof, and the cutting width of the preprocessing unit 5 A pre-processing frame 28 of the pre-processing unit 5 is configured by vertical frame units 23, 24L, 24R including left and right side frames 24L, 24R positioned at both ends.

  The left and right side frames 24L and 24R extend toward the front of the machine body and are integrally attached to the lower transmission case 21 and the horizontal frame 22, and plate-like reinforcing members 24a and 24a are provided inside the machine body. Strongly configured against loads applied in the left and right direction of the machine. Dividers 13 and 13 are also attached to the front ends of the left and right side frames 24L and 24R, and these dividers 13 and 13 are configured such that their weed positions can be adjusted by narrow guides 13a and 13a.

  On the other hand, as shown in FIG. 6 and FIG. 7, an elevating transmission case 25 for transmitting power to each elevating device 15 is extended in the upper part of the pre-processing unit 5 in the width direction of the machine body. Power is transmitted from the lower transmission case 21 through the via. The intermediate transmission case 27 is erected from the left end of the lower transmission case 21 toward the upper side of the machine body, and is raised at the connecting portion with the transmission case 25 according to the state of the grain culm in the field. A pull-up transmission 26 that changes the speed is provided. The vertical transmission case 12, the lower transmission case 21, the raising transmission case 25, and the intermediate transmission case 27 described above are internally provided with transmission shafts 12a, 21a, and 27a (see FIG. 8) for transmitting power. The power transmission between the transmission cases is performed via these transmission shafts 12a, 21a, 27a.

  The pulling transmission 26 is composed of a shift drive shaft 26b (see FIG. 8) to which power from the intermediate transmission shaft is transmitted and a shift driven shaft 26a (see FIG. 8) that pulls and transmits power to the transmission case 25. A plurality of speed change gears are provided in between, and the power is changed by a combination of the speed change gears, and the speed change driven shaft 26a is arranged inside the body of the speed change drive shaft 26b so as not to protrude outside the body. Yes. In addition, side covers 30 that are easily detachable by lock handles 29 are attached to the left and right side portions of the pre-processing unit 5 so as to prevent the raising transmission 26 and the intermediate transmission case 27 from being exposed to the outside of the machine body. ing.

  Next, the stock source scraping device 17 will be described. The stock source scoring device 17 is composed of a scoring belt 31 for scoring the stock of the cereal that has been raised by the pulling device 15, and a star wheel 32 for converging the cereal that has been scraped by the scoring belt 31. The number of the scraping belts 31 and the number of star wheels 32 is the same as the number of cutting lines (eight in this embodiment).

  The star wheel 32 is a substantially star-shaped member made of a resin and meshes between a pair of star wheels to form a conveying path for cereals. As shown in FIG. 7, the star wheels 32a, 32b, 32c, 32d, 32e, 32f, 32g, and 32h form four sets of star wheel pairs 33A, 33B, 33C, and 33D. The two sets of star wheel pairs 33A and 33D are arranged so as to overlap vertically in the plan view with respect to the two sets of star wheel pairs 33B and 33C inside the machine body.

  In addition, the two star wheel pairs 33B and 33C on the inner side of the fuselage are also engaged with two adjacent star wheels 32d and 32e in the center of the fuselage that are not the cereal conveyance path. Power is transmitted in the star wheel pair T.

  Further, the star wheels 32a, 32b, 32c, 32d, 32e, 32f, 32g, and 32h and the scraping belt 31 are provided on the same axis and configured to rotate in synchronization with each other, which will be described in detail later. Power is transmitted to drive shafts 73a, 75a, and 77a of drive-side star wheels 32a, 32d, and 32h that are rotatably supported by mounting cases 73, 77, and 75 to drive.

  Next, the culm conveying device 20 that conveys the harvested culm to the threshing unit 7 will be described. The grain feeder 20 conveys the left and right main stock former conveyors 35 and 36 for conveying the stock side of the grain straw fed from the two pairs of star wheels 33A and 33D on the left and right outer sides, and the tip side. Left and right main tip transport devices 37, 39, left and right upper tip transport devices 40, 41 transporting the upper part of the tip, and two sets of star wheel pairs 33B, 33C inside the fuselage The left and right subsidiary stock transport devices 42 and 43 that transport the original side, the left and right subsidiary stock transport devices 45 and 46 that transport the tip side, and the stock side of these cereals that merged in the center of the machine body It is composed of a central principal stock transport device 47 and a handling depth transport device 49 that adjusts the handling depth of the cereal. In addition, conveyance at the tip side of the cereal is performed by a tine (chain with claw), and the stockholder side is performed by a chain.

  The left and right main stock transport devices 35, 36, main tip transport devices 37, 39 and upper stage tip transport devices 40, 41 are arranged in a substantially C shape extending from the center of the body in the left-right direction of the body, The cereals from the left and right sides of the pre-processing unit 5 are focused on the center of the machine body and conveyed to the rear of the machine body. Moreover, the substock former conveying apparatuses 42 and 43 and the auxiliary head conveying apparatuses 45 and 46 are configured to convey the cereals from the center of the machine body backward.

  The cereals conveyed by these conveying devices 35, 36, 37, 39, 40, 41, 42, 43, 45, 46 are configured to merge at the confluence portion M at the center of the machine body, and the culm length is detected. After being automatically adjusted to an appropriate handling depth by the handling depth conveying device 49, it is delivered to the feed chain 19 of the threshing section 7 by the right main tip conveying device 39 and the central main stock conveying device 47. .

  Next, power transmission of the preprocessing unit will be described. As shown in FIG. 8, a belt 53 is wound between a pulley 51 a provided on the output shaft 51 of the conveyance HST 50 to which power from the engine is input and a pretreatment input pulley 52 of the longitudinal transmission case 12. The power from the engine is transmitted to the preprocessing unit 5. The power from the vertical transmission shaft 12 a of the vertical transmission case 12 is transmitted to the lower transmission shaft 21 a of the lower transmission case 21, and is caused via the intermediate transmission shaft 27 a of the intermediate transmission case 27 to cause the transmission case 25 to be raised. It is transmitted to the transmission shaft 25a. A plurality of sub-transmission shafts are branched from the middle portion of the longitudinal transmission case 12, and a plurality of drive sprockets 55, 56, 57, 59, 60, 61, 62, provided on these sub-transmission shafts. 63, the right main stock transport device 39, the central main stock transport device 47, the right main stock transport device 36, the handling depth transport device 49, the left sub stock transport device 42, the left sub stock transport device 45, the right The sub stock source transport device 43 and the right sub tip transport device 46 are driven.

  Further, the cutting blade drive parts 65, 65 provided at both ends of the lower transmission case 21 drive the cutting blade 16 a of the reaping device 16, and the auxiliary transmission shaft branched from the intermediate transmission shaft 27 a of the intermediate transmission case 27. Drive sprockets 66 and 67 are provided at 68, and power is transmitted to the left main stock transport device 35 and the left main tip transport device 37. In addition, a plurality of transmission gears are provided between the transmission drive shaft 26b (the upper end portion of the intermediate transmission shaft 27a of the intermediate transmission case 27) of the pulling transmission 26 provided in the intermediate transmission case 27 and the transmission driven shaft 26a. Thus, the power shifted by the meshing is caused and transmitted to the raising transmission shaft 25a of the transmission case 25, and the transmission driven shaft 26a is arranged on the right side (inside the machine body) of the transmission driving shaft 26b.

  A plurality of tip transmission cases 69 project from the pulling transmission case 25 toward the front of the machine body, and a drive sprocket 70 is provided at the tip of the tip transmission shaft 69a of the tip transmission case 69. The driving sprocket 70 transmits power to the pulling device 15. As shown in FIG. 7, the pulling device 15 has a length B between two adjacent drive sprockets 70 provided in the same tip transmission case 69 and a length A between the pulling devices 15. It arrange | positions so that it may become the same between each raising apparatus 15. FIG.

  The driven sprockets 72 and 71 of the left main stock transport device 35 and the right main stock transport device 36 described above are fixed to the mounting shafts 75a and 73a of the star wheels 32h and 32a provided at the left and right ends of the machine body, respectively. Power is transmitted to the mounting shafts 75a and 73a to rotate the drive side star wheels 32h and 32a. Further, the driven sprocket 76 of the right subsidiary stock transporter 43 is fixed to the mounting shaft 77a of the star wheel 32d on the right side of the center of the machine body, and rotates the star wheel 32d on the driving side and the left subsidiary stock transporter. The driven sprocket 79 of 42 is loosely fitted to the mounting shaft 80a of the star wheel 32e on the left side of the center of the fuselage.

  Therefore, of the four star wheel pairs 33A, 33B, 33C, and 33D, the star wheel pairs 33A and 33D on the outer side of the machine body are driven by the star wheels 32a and 32h on the driving side and the stir belts 32b and 32g on the driven side. 31, and the star wheel pair 33B, 33C on the inner side of the fuselage drives the driven star wheels 32c, 32e, 32f and the take-up belt 31 by the driving star wheel 32d. At this time, power is transmitted between the star wheel pair 33B and 33C T inside the fuselage by the engagement of the star wheels 32d and 32e.

  The star wheel pair 33B, 33C on the inner side of the fuselage is configured such that the driven sprocket 79 of the left subsidiary stock transport device 42 is fixed to the mounting shaft 80a, and the star wheel 32e is loosely fitted to the mounting shaft 80a. In this state, the star wheel 32e may be fixed to the mounting shaft 80a.

  In addition, when configuring as a 7-strike combine, one of the star wheel pairs 33B and 33C on the inner side of the fuselage has one of the 32c and 32f star wheels removed, and among the star wheels 32d and 32e, Either one will form a grain passage with the guide.

  Next, the operation of the combine 1 according to this embodiment will be described. An operator travels the combine 1 and threshs and harvests while harvesting grain straws in the field and proceeds with the harvesting operation. When the combine 1 travels in the field, the cereals are weeded by the divider 13 of the pretreatment unit 5 and the cereals that have been weeded by the pulling device 15 are raised. The raised culm is scraped by the scooping belt 31 and is then fed through the culm conveying path between the star wheels 32 and 32 and is reaped by the reaping device 16 in the process.

  The harvested culm is transferred to the feed chain 19 of the threshing unit 7 by the culm conveying device 20 and threshed, and the threshed grain is stored in the glen tank 10. Moreover, the cereal after threshing is finely cut and processed by the waste cutter of the post-processing unit 9.

  When the harvesting operation is finished, the operator removes the left and right side covers 30, 30 and the cutting blade 16a to make the overall width W of the aircraft within 2500 mm of the legal standard, and self-runs the public road to the barn and stores the combine 1 To do.

  By configuring the combine 1 as described above, the star wheels 32d and 32e at the center of the fuselage can be engaged with each other, and the overall width W of the pretreatment unit 5 can be reduced. In addition, the star wheel pair 33A, 33D on the left and right outer sides of the fuselage is arranged so as to overlap vertically with the star wheel pair 33B, 33C on the inner side of the fuselage in plan view, thereby further reducing the overall width W of the pre-processing unit 5. Can be configured.

  In addition, the overall width W of the combine 1 is set on the public road, in combination with the raising transmission 26 facing the inside of the fuselage and the reinforcing members 24a of the left and right side frames 24L and 24R being arranged inside the fuselage. Can be accommodated within 2500 mm, which is the legal standard for traveling.

  Furthermore, by arranging the length B between two adjacent drive sprockets provided in the same tip transmission case 69 and the length A between the pulling devices 15 to be the same between the pulling devices 15. The total width W of the combine 1 can be made within 2500 mm with the cover attached to the pulling device 15. Moreover, since the structure is the same, it can also be used as a part.

  Furthermore, by arranging the reinforcing members 24a of the left and right side frames 24L and 24R on the inner side of the machine body, the cutting width can be expanded to a margin of 2500 mm.

  In addition, the star wheel pair 33A and 33D on the outer side of the machine body is provided at substantially the same height, and the star wheel pair 33B and 33C on the inner side of the machine body are provided at substantially the same height, thereby reducing the conveying efficiency of the cereal. The entire width W of the preprocessing unit 5 can be narrowed without any problem.

<Embodiment 2>
The combine according to the second embodiment is configured such that the side frames 24L and 24R of the pre-processing frame 28 of the combine according to the first embodiment can be removed, and the parts different from the configuration of the first embodiment will be described below. .

  As shown in FIGS. 9 and 10, the horizontal frame portions 21 and 22 including the lower transmission case 21 and the horizontal frame 22 described above, and the vertical frame portions 23 and 24L including the divider frame 23... And the side frames 24L and 24R. , 24R, and the like, the stock scraper 17, the divider 13,..., The cutting blade 16a of the cutting device 16 and the like are attached to the left and right sides of the cutting width. The side frames 24L and 24R are attached to the horizontal frame 22 and the lower transmission case 21 by bolts.

  Therefore, the left and right side frames 24L and 24R can be easily detached by simply removing the bolts, and the horizontal frame 22 is fixed to the lower transmission case 21 by the brackets 21a and 21a. Even if 24L and 24R are removed, the entire preprocessing frame is not detached.

  By removing these left and right side frames 24L and 24R, the combine 1 can keep the entire width of the pre-processing unit 1 within 2500 mm, and it is not necessary to obtain permission from the police every time the self-runs on the public road. Further, since the left and right side frames 24L and 24R are bolt-on structures, the entire width W of the pretreatment unit 5 can be increased by simply removing the bolts after removing the cutting blades 16a supporting the both ends below. The work efficiency can be improved and the work load on the operator can be reduced.

  The left and right side frames 24L and 24R of the pretreatment frame 28 may be configured so that only one of them can be attached and detached, and the attachment thereof is not limited to bolts, but may be another method such as a fitting type.

The side view of the combine which concerns on Embodiment 1 of this invention. The front view of the combine which concerns on Embodiment 1 of this invention. The top view of the combine which concerns on Embodiment 1 of this invention. The side view of the pre-processing part of the combine which concerns on Embodiment 1 of this invention. The transmission front view of the pre-processing part of the combine which concerns on Embodiment 1 of this invention. The transmission front view of the pre-processing part of the combine which concerns on Embodiment 1 of this invention. The transmission top view of the pre-processing part of the combine which concerns on Embodiment 1 of this invention. The transmission expanded view of the pre-processing part of the combine which concerns on Embodiment 1 of this invention. The transmission top view which shows the decomposition | disassembly state of the pre-processing part of the combine which concerns on Embodiment 2 of this invention. The transmission top view of the pre-processing part of the combine which concerns on Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 5 Pre-processing part 7 Threshing part 13 Weeding body 15 Pulling device 16 Harvesting device 17 Stock-source squeezing device 20 Grain conveying device 32 Star wheel 32d, 32e Star wheel 32c, 32d, 32e, 32f Inside the machine body Star wheels 33A, 33D Star wheel pair on the left and right sides of the fuselage T Between the star wheels in the center of the fuselage W Combined full width

Claims (1)

A plurality of weeds arranged side by side in the left-right direction of the machine, a pulling device for raising the cereals weeded by these weeds, a stocking device for scraping the stock of the raised cereals, and cutting In the combine of the 7 or 8 cuttings which provided the pre-processing part provided with the cereal conveyance apparatus which conveys the cereal harvested by the apparatus to the threshing part,
The pre-processing unit includes a vertical transmission case that transmits power from the engine to the pre-processing unit, power is transmitted from the vertical transmission case, and extends substantially over the entire width of the lower portion of the pre-processing unit. A lower transmission case, a pulling transmission case that transmits power to the pulling device at an upper portion of the pre-processing unit, and an upwardly extending portion from an end of the lower transmission case, and power is supplied to the pulling transmission case. An intermediate transmission case for transmitting,
An elevating transmission that shifts the elevating device is provided inside the intermediate transmission case;
7 or 8 cut combine characterized by that.

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