JP2013247912A - Reaping device of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester which can perform reaping work efficiently by effectively exhibiting processing performance of the combine harvester.SOLUTION: A lateral transfer path (Y1), in which a pulling-up lug (29) moves rectilinearly in the lateral direction, is formed under a grain culm pulling-up device (15), which pulls up planted grain culm, and a raking-in conveyor (17), which engages with grain culm and rakes it in and conveys it toward a reaping blade device (16), is provided behind this lateral transfer path (Y1), and it is constructed so that the grain culm working position of the raking-in conveyor (17) can be changed.

Description

  The present invention relates to a combine harvester.

  Conventionally, a pair of pull-up devices that cause the fallen cereals to be planted after weeding cereals to be planted in the field are arranged opposite to each other, and by setting the movement trajectory of the pull-up lugs provided in these pull-up devices Pulling the culling guide area and the culvert guided to the planted culm introduced between each of the right and left ends and the central three weeds toward the central side of the cutting and conveying unit There is known a combine in which a raising region is formed to increase the raising range (see, for example, Patent Document 1).

JP 2010-104346 A

  The technique described in Patent Document 1 is such that the distance between the left and right weeds arranged at the left and right ends of the cutting part and the middle weed arranged at the center is an interval at which each two rows of planted culm can be introduced. It is fixedly set and enables the culm harvesting work of 1 to a maximum of 4 grains, but in such a configuration, when it is lying down or getting wet, 3 to 4 are applied to the reaping device. When the planted cereal culm is introduced, the burden on the reaping device and the threshing device becomes excessive, and there is a problem of causing troubles due to clogging of the cereal.

  An object of the present invention is to solve this problem and to provide a combine that can effectively perform harvesting operations by effectively demonstrating the processing ability of the combine.

The present invention has taken the following technical means to solve the above problems.
The invention according to claim 1 forms a horizontal transfer path (Y1) in which the lug (29) moves linearly in the lateral direction by being raised at the lower part of the grain raising device (15) for raising the grain to be planted. In addition, on the rear side of the horizontal transfer path (Y1), there is provided a scraping / conveying device (17) that engages with the grains and scrapes and conveys toward the cutting blade device (16). The combine harvester configured to change the corn straw action position of (17) vertically.

  In the invention according to claim 2, a plurality of weeding tools are arranged on the front side of the grain raising apparatus (15) at intervals in the left-right direction, and the right weeding tool (of these weeding tools ( 14R) and the leftmost weeding tool (14L) are configured to be capable of changing from a width capable of introducing two cereals to a width where four cereals can be introduced. A combine harvester.

  The invention according to claim 3 is characterized in that the right end weeding tool (14R) and the left end weeding tool (14L) are rotated left and right around the longitudinal axis (22) provided at the base of each weeding tool. The combine reaping device according to claim 2, wherein the combine reaping device is connected to an operation lever (13L, 13R) provided in the driving operation portion (33) so as to move.

  The invention according to claim 4 is configured such that the conveyance start end portion of the scraping conveyance device (17) is located on the inner side of the outer end portion of the lateral transfer path (Y1) of the grain raising device (15) in the cutting width direction. The combine harvester according to any one of claims 1 to 3 is provided.

  In the invention according to claim 5, two rotary bodies (28a, 28b) for raising and winding the chain are arranged side by side in the left-right direction at the lower part of the grain raising apparatus (15), and the two rotary bodies ( The harvesting device for a combine according to any one of claims 1 to 4, wherein the lateral transfer path (Y1) is formed between 28a and 28b).

  According to the first aspect of the present invention, the cereal planted in the field is subjected to the transport action of the lateral transport path (Y1) of the culm pulling device (15) and the stirrer transport device (17), and The planter side is guided by the cutting blade device (16) and cut off, but if the transporting position of the picking and transporting device (17) is set high above the field scene, the culm is caught well when the culm is soft and easy to fall down. When the scraping and transporting device (17) is lowered close to the farm scene, the cereal is well captured and transported when the cereal has fallen into the farm scene. Can be prevented. Thereby, the adaptability to the working conditions and the type of the grain to be harvested can be improved, and the efficiency of the harvesting work can be improved.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, by changing from normal two-row harvesting to four-row harvesting according to the grinding condition and work mode of the cereal, Furthermore, efficient cutting work can be performed.

  According to the third aspect of the invention, in addition to the effect of the second aspect of the invention, the operator boarding the driving operation unit (33) sees the state of the cereal while maneuvering and controlling the weeding tool (14R). , 14L) can be easily adjusted, and the efficiency of the cutting operation can be further improved.

  According to the invention described in claim 4, in addition to the invention described in any one of claims 1 to 3, it is possible to reduce the amount of cereal from the culm pulling device (15) to the biting and conveying device (17). Takeover can be facilitated.

  According to the invention described in claim 5, in addition to the effects described in the inventions described in claims 1 to 4, the horizontal transfer path (Y1) of the culm pulling device (15) can be configured at low cost.

It is a top view of a combine. It is a front view of a combine. It is a side view of a combine. It is a top view of the principal part of a combine. It is a side view which shows a part of combine. It is a front view which shows the principal part of a reaping device. It is a front view which shows the principal part of a reaping device. It is a front view which shows the principal part of a reaping device. It is a front view which shows the principal part of a reaping device. It is a front view which shows the principal part of a reaping device. It is a side view of a lever for operating a weeding tool. It is a front view of a weeding tool operation lever. It is a side view which shows the principal part of a reaping device. It is a top view which shows the principal part of a reaping device. It is a top view of an operation panel. It is a side view which shows the principal part of a driving | operation operation part. It is a side view which shows the principal part of a driving | operation operation part. It is a drive mechanism figure which shows the grain raising apparatus of another Example. It is a partially expanded front view of the grain raising apparatus of another Example.

An embodiment of the present invention will be described with reference to the drawings.
In the following description, unless otherwise specified, the left side is referred to as the left and the right side is referred to as the right when viewed from the pilot seated in the driver's seat 5 facing the forward direction of the combine.

  1 to 3 show an overall view of a combine. This traveling vehicle body 1 includes a pair of left and right traveling crawlers (crawlers) 2L and 2R as a traveling device 2 driven through a traveling mission M. The reaping device 4 is installed in the front part of the threshing device (threshing unit) 3 installed at the rear, and the driver seat 5, the front operation box 6 on the front side of the driver seat, A driving operation unit 33 including a side operation box 7 on the left side of the seat is provided, and a Glen tank G for temporarily storing threshing grains is provided behind the driving operation unit 33.

  On the right side of the front operation box 6, there is installed a power steering lever 8 that controls the advancing direction of the machine body in the left-right direction and controls the lifting device 4 in the up-down direction. On the side operation box 7 on the left side of the driver's seat 5, the cutting and detaching clutch lever 9 that intermittently operates rotational power to the reaping device 4 and the threshing unit 3, and a continuously variable transmission (not shown) are shifted to change the traveling speed. Shift levers (travel shift lever 10, sub-shift lever 11) and the like are arranged.

  The reaping device 4 is supported by a rear support frame 20a, and a rear end portion (rear end portion) of the rear support frame 20a is pivotally supported to a support portion (not shown) provided in the traveling vehicle body 1. . Then, the cutting device 4 is moved up and down by hydraulic expansion and contraction of the cutting lifting cylinder S provided between the intermediate portion of the rear support frame 20a and the traveling vehicle body 1.

  The left and right intermediate portions of the lateral support frame 20b in the left-right direction are connected to the front end portion (front end portion) of the rear support frame 20a, and the weed support frame 21 is directed from the lateral support frame 20b toward the front of the combine body. A plurality of them are arranged at predetermined intervals on the left and right.

  The reaping device 4 includes a plurality of weeding tools (weeding members) 14 for weeding cereals to be planted, and a pair of left and right culm raising devices 15 (15L, 15R) for raising the cereals after weeding. And a clipper-type cutting blade device 16 that cuts the cereal after raising, a squeeze conveying device 17 such as a star wheel that squeezes and conveys the cereal after reaping, and the cereal after squeezed and conveyed to the threshing unit 3 It is equipped with a lifting and conveying device 18 and the like that are supplied by lifting and conveying.

  The weeding tool 14 includes a left weeding tool (left weeding member) 14L, a right weeding tool (right weeding member) 14R, and a middle weeding tool (center weeding member) 14C. . The weeding tool 14 is attached to the tip of the weeding support frame 21.

The left and right weeding tools 14L and 14R are pivotally attached around a vertical axis 22 in the vertical direction provided in the middle part of the weeding support frame 21 so that the tip side is turned left and right.
As shown in FIG. 7, when performing a normal two-row cutting operation, the left and right weeding tools 14L and 14R are in a closed state, and 1 between the left and right weeding tools 14L and 14R and the middle weeding tool 14C. Each row of corn straw is introduced, and two corn straws are guided to the cutting blade device 16 in the right and left direction.

  As shown in FIG. 8, of the left and right weeding tools 14L and 14R, when the left weeding tool 14L is opened to the left outer side (open state), 2 between the middle weeding tool 14C and the left weeding tool 14L. A row of cereals is introduced, and 3 rows of cereals are introduced together with the 1 row of cereals introduced between the middle and lower righting tools 14C and 14R, and three-row cutting work becomes possible. .

  Further, as shown in FIG. 9, of the left and right weeding tools 14L and 14R, the state in which the right weeding tool 14R is opened to the right outer side (open state) is between the middle weeding tool 14C and the right weeding tool 14R. 2 cereals are introduced, and 3 cereals are introduced together with 1 cereal introduced between the middle part 14C and the closed left part 14L. It is possible to perform three-row cutting work.

  As shown in FIG. 10, when the left and right weeding tools 14L and 14R are opened outward, the left weeding tool 14L and the middle weeding tool 14C, and the right weeding tool 14R and the middle weeding tool 14C, respectively. In each case, two rows of cereals are introduced, and it is configured such that four cereals can be introduced in total on the left and right sides.

  Thus, the shift lever 10 is tilted forward and the body is moved forward by the traveling crawlers 2L and 2R to perform the harvesting and harvesting work. In the harvesting and harvesting work of the combine, the field is viewed from above in the counterclockwise direction. Since the grain cocoon is cut from the peripheral part to the center part while turning, the uncut grain cocoon is on the left side of the reaping device 4.

  In the two-row cutting operation (FIG. 7), when the right weeding tool 14R is aligned with the position of the stump C of the already harvested grain millet (already-milled grain millet), it is divided between the left and right weeding tools 14L and 14R. Therefore, the operator operates the aircraft with the power steering lever 8 to pass the position of the right weeding tool 14R in front of the driver's seat 5 over the stump C. It is only necessary to move forward while moving, and the maneuvering operation of the aircraft in the cutting operation becomes easy.

  In the work shown in FIG. 8 among the three-row cutting work, the left weeding tool 14L is positioned on the inner side of the left weeding tool 14L with the position of the culm K planted in the field. This mode of operation is mainly used when cutting the culm at the shore, and the tip of the left weeding tool 14L approaches the left outermost side of the aircraft, so The work can be performed without contacting the aircraft with the obstacle, and it is effective in an agricultural field in an urban area surrounded by a concrete wall.

  9 is suitable for the so-called mid-split operation in which the uncut grain culms are positioned on the left and right sides of the combine body, and the right part having a large distance from the right outer end of the right traveling crawler 2R. The clearance between the right-side crawler 2R and the right-side crawler 2R is cut by positioning the tip of the grass tool 14R on the right side of the right-side right-side crawler K. Thus, it is possible to perform the mid-split operation without stepping on the uncut cereal meal by the left and right traveling crawlers 2R and 2L.

  In the four-row cutting operation (FIG. 10), it is possible to mow four rows of cereals with the two-frame culm pulling devices 15L and 15R, and the efficiency of the reaping operation can be dramatically increased. In particular, it is effective in performing the above-mentioned mid-slicing work, and the traveling crawlers 2R and 2L can step on the culm K by moving the already-cut ground even when changing the direction of the aircraft during the cutting work. Work without any problems.

  Moreover, as above-mentioned, when the working condition is favorable by changing the space | interval of the right and left weeding tools 14L and 14R from 2 row cutting to a maximum of 4 row cutting (the grain straw is in an upright state, rainwater, mud, etc. When it is not attached or when the grain at the tip of the grain culm is relatively small), it is possible to introduce 4 grains into the reaping device 4 so that the distance traveled in the field and the turning of the aircraft It is possible to reduce the number of times to perform and to perform efficient work.

  In addition, under the working conditions where the cereals are lying down, wet, or have a lot of grains, and the load of reaping and threshing is expected to be high, the amount of cereals introduced into the reaping device 4 is two. By limiting to minutes, the load of the reaping device 4 and the threshing device 3 can be reduced and stable work can be performed.

  The left and right weeding tools 14L and 14R and the operation levers 13L and 13R for remotely operating them are linked and connected via an operation wire 23 and the like, and as shown in FIGS. 11 and 12, the fulcrum Q of each operation lever 13L and 13R. By performing a pulling operation toward the front side (front to rear) centering on the left side, the left weeding tool 14L is connected to rotate to the left outer side, and the right weeding tool 14R is rotated to the right outer side. When the operation levers 13L and 13R are pushed forward, the left and right weed tools 14L and 14R return to the closed state of the two-row cutting posture. Further, the left and right operation levers 13L and 13R are disposed in the vicinity of the side of the auxiliary transmission lever 11 on the side operation box 7 side, and are disposed in parallel to the left and right in a front view.

  Further, as shown in FIG. 4, the left and right weeding tools 14L and 14R have their tips rotated inward and outward with respect to the ends of the cutting blade device 16, that is, the left and right weeding support frames 21L and 21R. Since the frame part of the rear part of the weeding implements 14L, 14R is not largely refracted from the weeding support frames 21L, 21R, the cereals are spread over the weeding implements 14L, 14R and the weeding support frames 21L, 21R. Smoothly guide stock companies.

  Since the left and right width A of the cutting blade device 16 is set to be narrower than the tip interval B1 between the left and right weeding tools 14L and 14R in the open state, the grain culm introduced into the reaping device 4 is used as a normal reaping line. From the number, the cutting blade device can be trimmed in addition to this number of rows, and by narrowing the left and right widths of the cutting blade device 16 within a range that does not hinder the cutting performance of the wheat straw, the cutting blade device The vibration and noise generated by 16 can be reduced. In addition, the harvesting device 4 can be configured in a compact manner, and the harvesting device 4 is less likely to come into contact with the surrounding shore during turning, so that a combine with excellent operability can be provided.

  In addition, the left and right width A of the cutting blade device 16 is set to be wider than the tip interval B2 of the left and right weeding tools 14L and 14R in the closed state. Compared with the amount, there is a margin in the cutting ability of the cutting blade device 16, and the cereal can be reliably cut.

  Of the right and left weeding tools 14L and 14R, when the weeding tool 14L on the uncut area side (left side) is bulged to the outer side, the tip of the weeding tool 14L is not opened. It is set so as to be positioned outward from the outer end portion of the traveling crawler 2L on the cutting ground side (see FIG. 5). According to this, it is possible to prevent the cereal grains on the uncut area from being stepped on by the traveling crawler 2L on the uncut area.

  In addition, in work on soft ground such as a wet field, the traveling crawler 2L on the uncut ground side sinks to the ground and mud is pushed away to the uncut ground side, but the tip of the weeding tool 14L and the cutting blade device Since the outer end of 16 is located on the outer side of the traveling crawler 2L, mud is not pushed up to the stock of the uncut grain culm, and the next cutting process is not hindered.

  In the example of FIG. 5, when the left and right weeding tools 14L and 14R are simultaneously opened outward, the distances W1 and W2D of the middle weeding tool 14C and the left and right weeding tools 14L and 14R are substantially the same distance. Even when closed at the same time, the distance between the middle weed tool and the left and right weed tool tips is substantially the same.

  As shown in FIG. 6, the left and right grain raising devices 15L and 15R include a raising case 25 having a symmetrical shape, a drive sprocket 26, a tension sprocket 27 and a lower portion in the case. Left and right guide rollers 28a and 28b installed at a predetermined interval, and an endless chain 30 with a raising lug 29 hung over them are provided.

  On the starting end side of the left and right pulling devices 15L and 15R, the horizontal squeezing of a predetermined width in the horizontal direction that rakes the cereals introduced by the lugs 29 from the outside toward the inside pulling path (vertical transfer path) Y2 side. A path (lateral transfer path) Y1 is provided. The scraping path Y1 is configured between the left and right guide rollers 28a and 28b arranged at a predetermined interval, and causes a roller pitch (distance between the shaft centers) P1 between the left and right guide rollers 28a and 28b. By setting substantially the same as the lug pitch (attachment interval) P2 between the lugs 29 and 29, the plurality of raising lugs 29 and 29 are laterally moved in the downward acting posture in the scraping path Y1. In the pulling route Y2, the pulling lug 29 is raised and shifted in a horizontal posture.

  That is, the grain lug is caused while the lug 29 is moving near the terminal position of the scraping path Y1, or while moving along the arc path in the process of moving from the scraping path Y1 to the path Y2. Even if the lug 29 is disengaged, the other raising lug 29 is present in the scraping path Y1, so that the grains can be received, and the raising devices 15L and 15R prevent the omission of the grains. can do.

Therefore, according to the scraping route Y1 having the above-described configuration, even if two cereal grains are introduced on one side, the scraping route Y1 can be raised and reliably scraped into the route Y2.
The lug pitch P2 is shorter than a length obtained by adding a quarter of the outer peripheral length of the guide roller 28a to the inter-roller pitch P1, and preferably, the inter-roller pitch P1 is an eighth of the outer peripheral length of the guide roller 28a. The length is shorter than 1 plus 1. By setting the inter-roller pitch P1 and the lag pitch P2 as described above, the pulling devices 15L and 15R can be prevented from being missed and can be raised satisfactorily.

  Moreover, as shown in FIG. 6, the inner end in the front view of the left and right weed portions 14L and 14R in both the opened state on the outside and the closed state on the inside of the left and right weed tools 14L and 14R. The part is configured to overlap with the movement locus of the lug 29.

  The pulling lug 29 moves in a lying posture along the endless chain 30 on the non-lifting action side, and when it reaches the side of the guide roller 28a, the base of the lug 29 comes into contact with the guide roller 28a and stands upright. However, cereal grains that have been weeded by the left and right weeding tools 14L and 14R by superimposing the inner ends of the left and right weeding portions 14L and 14R in the front view and the locus of the raising lug 29 in a standing posture. Can be smoothly taken over by the raising lug 29 in the standing posture.

  When the left and right weed portions 14L and 14R are closed inward, the shaft center position of the guide roller 28a is close to the left and right directions, so that the left and right weed portions 14L and 14R are raised between the lugs 29. There is almost no area where the lugs 29 do not act, and the culms targeted for cutting, which are guided by the weeds, can be surely erected and scraped toward the path Y2, and the spilling of the culms can be reduced. .

Note that the tip positions of the left and right weed portions 14L and 14R when the left and right weed portions 14L and 14R are closed inward are the same as the axial position of the guide roller 28a in the left and right directions, and the outer periphery of the guide roller 28a. It is desirable to be within a range of distance from the side end portion to about half of the protruding length of the lug 29, and by placing it within this range, out of the force acting on the cereal by the raising lug 29 In addition, the component force in the direction of raising and scraping in the direction of the path Y2 becomes larger than the component force in the direction of pressing the cereals downward, and the squeezing action on the cereals can be improved.
(Scratch transfer device)
As shown in FIG. 13 and FIG. 14, the pick-up conveyor device 17 is made up of a pick-up star wheel 35, a pick-up belt 36, and the like. A drive pulley which is held and held by a take-up lug 37 projecting to the rear, and is carried toward the rear cutting blade 16 side and further to the rear side therefrom, and is installed on the take-up star wheel shaft 38 40 and a driven pulley 41 that is installed on the front end of the scraping case 39 with a predetermined left and right spacing, and is arranged on the back of the left and right pulling devices 15L and 15R.

  Further, the axial center position of the driven pulley 41 is located on the cutting width center side in the left-right direction with respect to the axial center position of the guide roller 28a. That is, the conveyance action start end portion of the take-up lug 37 that is in front of the shaft center of the driven pulley 41 is located on the inner side in the left-right direction than the outer end portion of the scraping path Y1.

  Further, as shown in FIG. 13, the drive pulley 40 is formed with double pulley grooves 40 a and 40 b, and the driven pulley 41 is turned up and down with a collar 45 with respect to the driven shaft 46 and fixed with a nut 47. The winding position of the belt 36 can be changed up and down.

The driven pulley 41 and the collar 45 may be integrated, or the driven pulley 41 may be formed with a double pulley groove.
When the rake belt 36 is set to the upper side, the grain candy is effective when it is soft and easy to fall down, and when the rake belt 36 is set to the lower side, it is effective when the candy kernel is in a lying state where it falls on the field scene.

The lifting and conveying device 18 is configured such that the starting end side can be changed in the vertical direction with the horizontal axis centering on the end side as a rotation fulcrum, and the supply depth into the handling chamber is arbitrarily adjusted according to the length of the cereal. it can.
The operation panel 6a shown in FIG. 15 is equipped with a display D. When one or both of the right and left weeding tools are “open”, a notice that “Please make the sub-shift low” is displayed on the screen. Is displayed. Usually, the two-row cutting operation is performed at a standard operation speed. However, if this is a three-row cutting or a four-row cutting operation, it is difficult in terms of ability. Is desirable. Therefore, the operator may work by switching the sub-shift to a low speed according to the display.

Note that a voice generator may be provided instead of the above-described display, and the operator may be notified by voice.
Alternatively, the upper limit of the traveling vehicle speed may be automatically reduced when the left and right weed bodies 14L and 14R are opened.

  That is, the left and right herbaceous bodies 14L and 14R and the operating tools (operating levers) 13L and 13R for remotely operating them are interlocked and connected via a connecting member such as the operating wire 23, and the support shafts of the operating levers 13L and 13R are connected. The left weed body 14L and the right weed body 14R are connected so as to rotate to the left outer side and the right weed body 14R to the right outer side by a pulling operation toward the front side (front to rear) having 12 as an axis.

  When the operation levers 13L and 13R are pushed forward, the left and right weed bodies 14L and 14R return to the closed state of the two-row cutting posture. Further, the left and right operation levers 13L and 13R are arranged in the vicinity of the side of the speed change lever (the travel speed change lever 10 and the sub speed change lever 11) on the side operation panel 7 side.

  The auxiliary transmission provided for the traveling mission M can be switched by the auxiliary transmission lever 11 into three stages of high speed (road running speed), medium speed (cutting standard speed), and low speed (cutting work fall speed). That is, in a combine having “standard” and “inclination” for switching the sub-speed of the working speed, the sub-transmission lever 11 is “inverted” in conjunction with the operation of the operation lever 13 in the open state of the left and right weed bodies 14L and 14R. It is set as the structure switched to a position.

  Normally, the two-row cutting operation is performed at the “standard” operation speed, but if this is a three-row cutting or a four-row cutting operation, there is an aspect that is impossible in terms of ability. It is desirable to work.

  Therefore, as shown in FIG. 16, when the operation lever 13 is operated to the open state position, the auxiliary transmission lever 11 is moved to the “falling” position via the interlocking member 31, and the working speed is switched to a lower speed than the standard speed. When the operating lever 13 is in the closed position, the sub-shifting position can be changed by providing the interlocking member 31 with the elongated hole 32.

In addition, as shown in FIG. 17, when the weed control lever 13 is operated to the open state position, the traveling speed change lever 10 reaches a position that regulates the forward operation range within a predetermined range via the interlocking member 31 and the restraining means 44. It moves, and it is set as the structure which checks the movement to a forward side high-speed area from this. In the closed state of the weed body, the restriction can be released by the interchange hole 34 provided in the interlocking member 31.
(Reaping part with three or more pulling devices)
In the above embodiment, the harvesting device 4 provided with the two pulling devices 15L and 15R has been described for the sake of convenience. However, the harvesting device 4 may have three or more normal harvesting strips, The raising device 15 corresponding to the number of the normal cutting lines of the cutting device 4, the scraping device and the conveying device are provided, and the left and right weeding tools 14L and 14R are provided in front of the outer side of the raising device located at the outermost left and right, What is necessary is just to arrange | position the middle part grass tool 14C in the front position between the raising apparatuses 15, respectively.

  The embodiment shown in FIG. 18 and subsequent figures is another embodiment drive mechanism of the grain raising apparatus, which drives the grain raising apparatus 15m on one side parallel to the left and right with the driving force of the engine, and the other grain raising apparatus 15n. It is the structure made to follow.

  The drive side pallet pulling device 15m is driven by the drive sprocket 26m, the drive side tension sprocket 27m, the drive side guide roller 28m, and the drive side standing guide 48m, and the drive chain 30m with lugs 29m is wound around the drive sprocket 26m. By driving with the driving force, the drive pulling lug 29m is moved from below to above at the position opposed to the driven side grain pulling device 15n.

  The driven side pallet pulling device 15n is driven by the driven sprocket 26n, the driven side tension sprocket 27n, the driven side guide roller 28n, the driven side standing guide 48n, and the driven chain 30n with the lug 29n is wound around the driven pallet pulling device 15m. The lug 29m is driven and raised on the opposite side and engaged with the lug 29n from below so that the driven lug 29n moves from below to above.

  The drive pulling lug 29m is longer than the driven pulling lug 29n and wider, and the driven pulling lug 29n is driven by the leading end of the driving lug 29n and moving upward together with the leading end of the lug 29n. The

  The leading ends of the drive-induced lug 29m and the driven-induced lug 29n may be widened or concavo-convex to engage with each other, and a cushioning material such as rubber is provided at the engaging portion to reduce noise. It is good to plan.

  Further, the driven-side standing guide 48n is driven and raised to be shorter or longer than the lug 29m, and the driving-side standing guide 48m is made shorter than the driven-side standing guide 48n so that the driving and raising lug 29m is quickly rotated downward. As a result, the drive lugs and the lugs 29m are prevented from being damaged.

Further, the number of drive-induced lugs 29m and driven-induced lugs 29n and the arrangement pitch are made the same to improve the power transmission.
This embodiment simplifies the drive mechanism of the driven-side kernel raising device 15n, reduces costs by reducing parts and reduces the noise of the drive unit, and places the driven-side kernel raising device 15n in front of the driving operation unit. The front and rear length of the entire combine can be shortened by providing it and bringing the mowing device closer.

  It should be noted that a single drive-side grain raising device 15m and two or more driven-side grain raising devices 15n may be used for a multi-row harvesting combine.

4 Harvesting device 13L, 13R Operation lever 14R, 14L Weeding device 15 Grain raising device 17 Scratch conveying device 22 Vertical axis 26 Drive rotating body 28a, 28b Left and right rotating body 29 Pulling lug 30 Endless belt 33 Driving operation part Y1 Horizontal Transfer route

Claims (5)

  A lateral transfer path (Y1) is formed in which the lug (29) moves linearly in the lateral direction by being raised at the lower part of the grain raising apparatus (15) for raising the cereal to be planted. ) Is provided on the rear side with a scraping and transporting device (17) that engages with the straw and scrapes and transports it toward the cutting blade device (16). Combine harvester that can be changed up and down.   A plurality of weeding tools are arranged on the front side of the grain raising device (15) at intervals in the left-right direction, and among these weeding tools, a rightmost weeding tool (14R) and a leftmost weeding tool ( 14. The combine reaping device according to claim 1, wherein the interval of 14 L) can be changed from a width that allows introduction of two cereals to a width that allows introduction of four cereals.   The driving operation unit is configured such that the right end weeding tool (14R) and the left end weeding tool (14L) are pivoted left and right about the vertical axis (22) provided at the base of each weeding tool. The combine harvester according to claim 2, wherein the combine harvester is connected to an operation lever (13L, 13R) provided in (33).   The conveyance start end part of the said picking-up conveying apparatus (17) has been arrange | positioned in the site | part inside the outer side edge part of the horizontal transfer path | route (Y1) of a grain raising apparatus (15) in the cutting width direction. The combine harvester according to any one of claims 3 to 4.   Two rotating bodies (28a, 28b) for raising and winding the chain are arranged in the left-right direction at the lower part of the grain raising apparatus (15), and the two rotating bodies (28a, 28b) are arranged between the two rotating bodies (28a, 28b). The combine mowing apparatus according to any one of claims 1 to 4, wherein the horizontal transfer path (Y1) is formed.

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