JP2019054782A - Reaper of combine-harvester - Google Patents

Abstract

To improve threshing efficiency by expanding an application range of a grain-culm conveyance/supply device to long culm crop plants.SOLUTION: A reaper of a combine-harvester according to the present invention includes a grain-culm conveyance/supply device (14) comprising two stages of an ear-tip conveying chain (12) and a root conveying chain (13), the grain-culm conveyance/supply device configured to drive a winding-area upper part of a raising chain provided in a raising device (9) for raising grain culms after dividing grass), from an upper end of a raising transmission shaft in a raising pipe (22) erected from a reaping horizontal frame (18) provided at a lower part, by a raising drive shaft (24) interlocked via a transmission mechanism in a raising drive shaft case (23) provided at the upper end of a raising pipe (22), conveying the grain culms after reaping, and supplying them to a thresher (4). The grain-culm conveyance/supply device (14) is configured to adjustably lift the conveyance start-end side to the adjacency of or to a position beyond the raising drive shaft case (23).SELECTED DRAWING: Figure 5

Description

  The present invention relates to a combine harvester.

  The conventional combine is configured to adjust the start end side of the conveying and feeding device up and down according to the length of the harvested cereal meal that is conveyed and supplied from the reaping device to the threshing device, and to adjust the handling depth to an appropriate range. (For example, see the root / tip transfer devices 14a and 14b of FIG. 7 disclosed in Patent Document 1).

Japanese Patent No. 4548330

  However, the tip transport lug of the transport supply device and the drive shaft case interfere with each other, the starting end of the transport supply device is raised and cannot be adjusted up to the upper portion of the drive shaft case, and there is a range of adjustment of the handling depth. There was a problem of narrowing.

  In view of such a problem of the conventional combine described above, the present invention is adapted for a long crop by making the starting end portion of the conveyance supply device rise and adjustable up to a position near or beyond the drive shaft case. The purpose is to expand the range and improve the threshing efficiency.

  In order to solve the above problems, the present invention has taken the following technical means.

That is, the present invention described in claim 1 is a cutting horizontal frame (18) provided at the lower part with a winding region upper part of the raising chain provided in the raising device (9) for raising the cereal after weeding. Linked from the upper end portion of the raising transmission shaft in the raising pipe (22) standing upright from the upper end portion of the raising pipe (22) via the transmission mechanism in the raising drive shaft case (23) It is set as the structure driven by the raising drive shaft (24), and from the top and bottom two stage tip conveyance chain (12) and the root conveyance chain (13) which conveys the grain culm after cutting and supplies it to the threshing device (4) In the harvesting device of the combine provided with
The grain haul conveying and feeding device (14) is a combine harvester characterized in that the conveying start end side is raised and adjusted to a position near or beyond the drive shaft case (23). is there.

  According to a second aspect of the present invention, the stay portion of the pulling drive shaft case (23) is located on the side closer to the tip movement locus of the tip transport lug (15) provided in the tip transport chain (12). The combine harvester according to claim 1, wherein a rear stay (26) and a front stay (27) are provided, and the rear stay (26) is arranged so as to be biased outward from the front stay (27). .

  The invention according to claim 3 is characterized in that the elevating pipe (22) is inclined in the left-right direction in a front view so that the upper end of the elevating pipe reaches the inside of the reaping device, and the elevating pipe (22) is inclined in the direction of inclination. On the other hand, the harvesting device for a combine according to claim 2, wherein the attachment member (28) provided on the stay portion side is inclined so as to reach the outside of the harvesting device toward the upper end side.

  The present invention according to claim 4 is characterized in that the tip of the right and left rising portions (29a, 29b) of the mounting stay (29) connecting the pulling drive shaft case (23) and the pulling pipe (22). The combine reaping device according to claim 3, wherein the rising portion (29b) on the side approaching the tip locus of the transport lug (15) is shorter than the other rising portion (29a).

  The present invention according to claim 5 is characterized in that the tip conveyance lug (15) when the conveyance start end of the cereal conveyance supply device (14) moves up and down between the lower limit position and the upper limit position of the vertical adjustment range. The combine mowing device according to claim 4, wherein the tip of the lifter is configured to move up and down at a position behind the rising movement locus of the raising lug (21) of the raising device (9).

  According to the first aspect of the present invention, the starting end side of the grain feeder can be raised and adjusted up to a position near or beyond the drive shaft case, so that the range of adaptation for the length of the harvested grain straw However, even if it is a super long koji, it can be supplied to the threshing device at an appropriate supply depth, and generation of chopping and swarf can be suppressed to increase the threshing efficiency.

  According to the second aspect of the present invention, in addition to the effect of the first aspect of the invention, the rear portion stay 26 is arranged so as to be biased to the outside of the front portion stay 27, so that the tip of the tip transport lug 15 A clearance with the movement trajectory is secured, and the conveyance start end portion of the cereal conveyance supply device 14 can be raised and adjusted.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the raising pipe 22 is inclined in the left-right direction in a front view so as to reach the inside of the cutting device toward the upper end side thereof. Since the attachment member 28 provided on the stay portion side is inclined with respect to the inclination direction of the pulling pipe (22) so as to reach the outside of the reaping device toward the upper end side thereof, upward of the cereal conveyance supply device 14 The movement range is increased, and there is no interference with the tip conveyance lug 15, and it can be raised and adjusted smoothly.

  According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, of the left and right rising portions 29a, 29b of the mounting stay 29 for connecting the pulling drive shaft case 23 and the pulling pipe 22 Since the rising portion 29b on the side approaching the tip trajectory of the tip conveyance lug 15 is formed shorter than the other rising portion 29a, interference of the tip conveyance lug 15 is caused even if the cereal conveyance supply device 14 is adjusted to be greatly increased. It can be raised and adjusted smoothly.

  According to the invention described in claim 5, in addition to the effect of the invention described in claim 4, the tip of the tip transport lug 15 is raised and the lug 21 is raised even when the grain feeder 14 is raised to the upper limit position. Since it moves up and down at the position on the rear side of the movement trajectory, it is possible to satisfactorily take over the cereal after raising.

Combine front view Top view of the combine Combine side view Front view of the main part of the mowing unit Side view of the main part of the cutting part Plan view of the main part of the cutting part Perspective view of the main part of the cutting part Perspective view of the main part of the cutting part Stay shape perspective view Side view of the trolley truck Plan view of the main parts showing the attachment and detachment state of the cutting part and the cutting upper and lower cylinders Top view of the main part Side view of the main part

  An embodiment of the present invention will be described with reference to the drawings.

  1 to 3 show a configuration example of a combine. This traveling vehicle body 1 includes a pair of left and right traveling crawlers 2 and 2 and a reaping device 3 is installed in front of a threshing device 4 mounted on the rear part. The side portion of the reaping device 3 is provided with a driving operation unit such as a driver's seat 5 and an operation box 6, and a grain tank 7 for temporarily storing the threshed grains is provided behind the driving operation unit. Equipped.

  The reaping device 3 is a weeding implement 8,8 ... for weeding the cereal planted in the field to the left and right, a cereal raising device 9 for raising the cereal after weeding, A clipper-type cutting blade device 10 for cutting, a scraping and transporting device 11 for scraping and transporting the harvested culm, and a threshing feed chain 16 of the rear threshing device 4 by taking up and transporting the culm after the scavenging transport. It comprises a cereal conveyance supply device 14 comprising a top and bottom two-stage tip conveyance chain 12 and a root conveyance chain 13. This reaping device 4 can be moved up and down with a cutting input shaft installed in the left and right direction at the front portion of the traveling vehicle body 1 as a fulcrum, and is provided at the front end portion of the cutting vertical frame 17 provided in the front and rear direction. The horizontal frame 18 is equipped with the above-described devices. The cutting vertical frame 17 is provided with a cutting vertical transmission shaft, and the cutting horizontal transmission shaft in the cutting horizontal frame 18 is driven in conjunction with the leading end of the cutting vertical transmission shaft.

  The cereal conveyance supply device 14 is inclined so as to increase from the conveyance start end side to the conveyance end rear side, and the conveyance start end side moves up and down with the sending end portion side as a fulcrum. It is set as the structure which can be adjusted to the appropriate supply depth to a threshing apparatus.

  The weeds 8 are supported by a weed support frame 19 projecting forward from the cut horizontal frame 18 side. Further, the weeding tool 8 includes a left and right left weeding tool 8L, a right weeding tool 8R, and a middle weeding tool 8C, and the interval between the right weeding tool 8R and the middle weeding tool 8C is the middle weeding tool 8C. It is wider than the interval between the left weed tools 8L and can be introduced by weeding even two cereals.

  The pulling device 9 winds a front and rear pulling case 20 and a pulling chain with a pulling lug 21 housed in the pulling case 20 around an upper drive sprocket and a lower driven wheel body. It is raised from the raising transmission shaft in the raising pipe 22 erected from the left and right ends of the cutting horizontal frame 18 by the raising drive shaft 24 that is interlocked via the transmission mechanism in the raising drive shaft case 23. The upper drive sprocket of the chain is driven to rotate.

  The grain haul conveying and supplying device 14 is configured such that the leading end side of the leading end movement locus K of the large number of tip conveying lugs 15 attached to the tip conveying chain 12 is raised and adjusted up to a position near or beyond the drive shaft case 23. (See FIG. 5). According to this, even very long cereals can be dealt with, the adjustment range is widened, the handling depth adjustment performance can be improved, and a large amount of swarf generated due to the tip entering the handling room too much In addition, it is possible to prevent the tip of the tip from being broken due to the action of the tooth treatment.

  Further, even if the grain transporting and feeding device 14 is pulled up and adjusted to a height exceeding the position of the drive shaft case 23, the tip of the tip transporting lug 15 is always pulled up and the lug 21 is moved upward (trajectory path). Also, by acting on the rear side, it is possible to reliably and satisfactorily take over the cereal after raising.

  In addition, when it raises along the rear side of a path | route and always raises the conveyance start end part of the cereal haul supply and supply apparatus 14 and it is comprised so that it may move upward while retracting | retreating a vertical rotation fulcrum part of a rear part, it will always raise. However, it will move along the back side of the route, and it is still effective.

  In the stay portion of the pulling drive shaft case 23 connected to the pulling case 20, as shown in FIG. 7, the rear portion stay 26 located on the tip conveying lug 15 side is biased outward from the front portion stay 27. Since the rear part stay 26 on the tip conveyance lug 15 side is located outside the front part stay 27, a gap with the tip movement locus K of the tip conveyance lug 15 is secured, and the cereal conveyance supply A significant increase adjustment of the device 14 is possible.

  The stay on the tip conveying lug 15 side of the drive shaft case 23 that is raised is positioned on the outside of the machine body in a plan view as it is arranged in the rear part with respect to the advancing direction, and the stay on the upper part with respect to the advancing direction Even if it is configured to be arranged on the outside of the machine body in a plan view, it is possible to greatly increase the cereal conveyance supply device 14.

  Further, as shown in FIG. 4, in the front view, the attachment member 28 of the stay portion is configured to be inclined outward toward the upper end side with respect to the center line Y of the raising pipes 22 and 22 inclined in the left-right direction. In addition, the tip transport lug 15 of the transport supply device 14 does not interfere with the mounting member 28, and upward adjustment is facilitated.

  In the front view shown in FIG. 4, the inclination in the moving direction of the cereal conveying and feeding device 14 is increased to the right rear, and the inclination of the drive shaft case 23 </ b> L is raised to the right and the drive shaft case 23 </ b> R is inclined. Rather than a horizontal plane. Further, in the front view, the center line of the raising drive shaft 24 is arranged on the right side or the equivalent position with respect to the weeding tool 8R, so that the distance between the tip position of the tip conveyance lug 15 and the right driving shaft case 23R is raised. Is secured.

  The shape of the mounting stay 29 that connects the pulling drive shaft case 23 and the pulling pipe 22 is concave when viewed from the front, and the tip conveying lug 15 side of the left and right rising portions 29a, 29b, that is, the rising portion 29b side is shortened. Therefore, even if the grain transporting and feeding device 14 is greatly raised upward, there is no interference with the tip transporting lug 15 and it can be raised and lowered smoothly. In FIG. 9, reference numeral 30 denotes an erecting hole for the pulling pipe 22, and 31 denotes an attachment hole.

  Next, the embodiment shown in FIG. 10 will be described.

  In the cutting trolley on which the reaping device 3 removed from the combine is placed, the main trolley 35 on which the wheels 34 are installed is provided with a sub trolley 37 with auxiliary wheels 36 that assists this. The main carriage 35 and the sub carriage 37 are connected by a connecting pipe 38.

  The connecting pipe 38 can be stored on the main carriage 35 side.

  In order to perform maintenance, the reaping device 3 can be removed from the combine side and placed on the trolley truck and moved.

  The embodiment shown in FIG. 11 has a configuration in which the upper and lower cylinders 40 are removed and the harvesting device 3 is opened, and a mounting pin 41 is provided on the cylinder mounting portion, and a fixing plate 42 and a handle portion 43 are provided on the mounting pin. It is said. And the cylinder mounting position alignment becomes easy by providing the notch part 46 in the pin insertion hole 45 of the member 44 for cylinder attachment in the cutting device 3 side. Also, by providing the guide plate 47 that guides to the cylinder mounting position below the cylinder mounting member 44, when the cylinder is mounted, the mounting position can be easily aligned along the guide plate simply by extending the cylinder.

DESCRIPTION OF SYMBOLS 3 Cutting device 4 Threshing device 9 Pulling device 12 Tip conveying chain 13 Root conveying chain 14 Grain transporting device 15 Tip conveying lug 18 Cutting horizontal frame 20 Pulling case 21 Pulling lug 22 Pulling pipe 23 Pulling drive shaft case 24 Drive shaft 26 Rear stay 27 Front stay 28 Mounting member 29 Mounting stay 29a Rising portion 29b Rising portion

Claims (5)

In the raising pipe (22) erected from the cutting horizontal frame (18) provided at the lower part of the upper part of the winding area of the raising chain provided in the raising device (9) for raising the cereals after weeding Driven by the pulling drive shaft (24) linked from the upper end of the pulling transmission shaft via a transmission mechanism in the pulling drive shaft case (23) provided at the upper end of the pulling pipe (22). It is provided with a cereal conveying and feeding device (14) comprising a top and bottom two-stage tip conveying chain (12) and a root conveying chain (13) that conveys the culm after cutting and supplies it to the threshing device (4). In the combine harvester,
The harvesting device for combine harvester characterized in that the grain transporting and feeding device (14) is configured to be adjustable by raising its transport start end side to a position near or beyond the drive shaft case (23).   A rear part stay (26) and a front part located on the side of the raising drive shaft case (23) on the side approaching the tip movement locus of the tip transport lug (15) provided in the tip transport chain (12). The combine mowing apparatus according to claim 1, wherein a stay (27) is provided, and the rear portion stay (26) is arranged to be biased outward from the front portion stay (27).   The pulling pipe (22) is inclined in the left-right direction in front view so that the upper end of the pulling pipe reaches the inside of the cutting device, and is provided on the stay portion side with respect to the tilting direction of the pulling pipe (22). The harvesting device for a combine according to claim 2, wherein the mounting member (28) is inclined so that the upper end side thereof reaches the outside of the harvesting device.   Of the left and right rising parts (29a, 29b) of the mounting stay (29) that connects the pulling drive shaft case (23) and the pulling pipe (22), the tip trajectory of the tip conveying lug (15) The combine reaping device according to claim 3, wherein the approaching rising portion (29b) is formed shorter than the other rising portion (29a). When the conveyance start end of the grain haul conveyance supply device (14) moves up and down between the lower limit position and the upper limit position of the vertical adjustment range, the tip of the tip conveyance lug (15) is raised and the apparatus (9) The combine mowing apparatus according to claim 4, wherein the pulling lug (21) is configured to move up and down at a position on the rear side of the ascending movement trajectory.

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