KR101250562B1 - Reaping part of a combine - Google Patents

Abstract

Provided is a harvesting portion of the combine that reduces vibration and noise generated from the cutting device and simplifies the configuration of the cutting device. In the harvesting portion of the combine, the cutting device 23 is composed of a plurality of disk-shaped cutting blades 231 for cutting the grain stem from the root side, and a smaller diameter than the cutting blade 231, and the grain stem is rooted. One disk-shaped auxiliary cutting blade 232 to be cut at the side is rotatably provided, and the plurality of cutting blades 231 are arranged side by side on substantially the same straight line in the left and right directions, and the auxiliary cutting blade 232 is provided. In the outer direction of the left and right cutting blades 231 located on the outermost side of the plurality of cutting blades 231.

Description

Cutting part of combine {REAPING PART OF A COMBINE}

TECHNICAL FIELD This invention relates to the harvesting part of the combine which harvests a grain stem.

Conventionally, the harvesting part of the combine provided with the cutting device which cuts out the produced grain stem is known. In the harvesting unit of such a combine, the cutting device is a cutting blade for cutting the grain stem, and has a fixed blade and a movable blade provided extending in the left and right directions, in a state in which the fixed blade and the movable blade overlap the up and down It was comprised so that a grain stem may be cut | disconnected by reciprocating sliding a movable blade with respect to a fixed blade.

However, such a cutting device has a problem that a large vibration and noise occurs when cutting between grains by the fixed blade and the movable blade. Then, in order to solve this problem, what used the disk-shaped cutting blade as a cutting blade for cutting a grain stem is proposed (for example, refer patent document 1). This cutting device was configured to cut a grain stem by arranging a plurality of disk-shaped cutting blades (a disk-shaped rotary cutter) arranged on the same straight line in the horizontal direction, and rotating each of them. .

Patent Document 1: Japanese Patent Application Laid-Open No. 11-46552

Although the harvesting part of the combine as mentioned above can reduce the vibration and noise which generate | occur | produce in a cutting device, it is necessary to provide a plurality of disc shaped cutting blades for the set of grain stems produced, Therefore, when the cutting width of the cutting device of the harvesting section was different, it was necessary to use cutting blades having different diameters. Therefore, the structure of the cutting device was complicated at the harvesting part of a combine.

Therefore, an object of the present invention is to provide a harvesting unit of a combine which reduces vibration and noise generated from the cutting device and simplifies the configuration of the cutting device.

In the harvesting unit of the combine of the present invention, a dividing tool for dividing the grain stem, a raising device for causing a plurality of sets of grain stems divided by the dividing tool, and a plurality of sets of grain stems produced by the producing device are cut. As a harvesting part of the combiner provided with the cutting device to carry, and the conveying apparatus which conveys the grain stem cut | disconnected by the said cutting device to the threshing part side, The said cutting device is a plurality of disk-shaped cutting blades which cut a grain stem from a root side; And a disk-shaped auxiliary cutting blade configured to have a smaller diameter than the cutting blade and cutting the grain stem from the root side, so as to be rotatable driveable, and the plurality of cutting blades are arranged on substantially the same straight line in the horizontal direction. It arrange | positions and arrange | positions and arrange | positions the said auxiliary cutting blade in the outer direction of the left and right one cutting blade located in the outermost side of a plurality of said cutting blades.

In the harvesting part of the combine of this invention, the said cutting device makes one said cutting blade with respect to a set of grain stems, making the number of the said cutting blades the same as the tide of the grain stem produced by the said production apparatus.

In the harvesting part of the combine of this invention, the said cutting device provides the said auxiliary cutting blade in addition to one said cutting blade about one pair of right and left located in the outermost side of the grain stem produced by the said production apparatus.

In the harvesting part of the combine of this invention, the actuator which rotates a plurality of said cutting blades and the said auxiliary cutting blade is provided.

In the harvesting | reaping part of the combine of this invention, the transmission mechanism which transmits the power from the said actuator to a plurality of said cutting blades is arrange | positioned under these cutting blades, and the drive shaft contained in the said transmission mechanism is left-right direction In addition to the above, the plurality of rotary drive shafts included in the transmission mechanism extend upward from the drive shaft, and the cutting blades are provided at the leading end of each of the rotary drive shafts.

In the harvesting unit of the combine of the present invention, the conveying apparatus is provided with a plurality of squeezed rings for scraping the grain stem produced by the producing device and conveying them to the threshing portion side, and a plurality of The squeezed ring is lined up substantially in the same straight line in the left and right directions, and the slitting device side is disposed in an inclined shape so that the side of the raising device is lowered and the threshing part side is increased, and the cutting device roughly arranges the plurality of cutting blades in the left and right directions. Lined up on the same straight line, the cutting blades are disposed obliquely such that the cutting blades are positioned below each of the small squeezing wheels, and the lowering of the raising device side and the higher threshing portion side are arranged. The degree of inclination with respect to the ground is set to be gentler than the degree of inclination with respect to the ground of the hardened ring.

In the harvesting part of the combine of this invention, it is equipped with the harvesting frame which supports the said grass dividing tool and each said apparatus, The said harvesting frame is equipped with the some dividing frame which arrange | positions the said dividing tool to the front end, and several dividing grass A frame extends from the threshing part side to the dichotomy tool side below the cutting device, and is parallel to each other at predetermined intervals in the left and right directions, and the cutting device is configured to mutually adjacent the cutting blades among the plurality of cutting blades. It is arranged at a predetermined interval by the left and right widths of the dichotomous frame.

In the harvesting unit of the combine of the present invention, vibration and noise generated from the cutting device can be reduced. In addition, even when the cutting width of the cutting device is different depending on the type of cutting part, by changing only the auxiliary cutting blade to the one having an appropriate diameter, the cutting width of the cutting device can be adjusted, and the cutting blade can be used as it is. Therefore, since the cutting blade can be shared in the cutting part irrespective of the cutting width of the cutting device, the configuration of the cutting device can be simplified.

In the harvesting part of the combine of this invention, a cutting blade can be easily installed and the selection of the necessary auxiliary cutting blade according to the cutting width of a cutting device can also be made easy.

In the harvesting part of the combine of this invention, adjustment of the cutting width of the cutting device by an auxiliary cutting blade can be made easy.

In the harvesting portion of the combine of the present invention, the plurality of cutting blades can be driven to rotate at the rotational speed necessary for cutting the grain stem regardless of the operating state of the engine of the combine, so that the grain stem can be reliably cut. Therefore, stabilization of grain stem cutting performance can be aimed at.

In the harvesting part of the combine of this invention, since the transmission mechanism which interlocks a cutting blade and an actuator is made into a simple structure, the cutting device can be simplified. Further, the grain stem after cutting can be prevented from being wound around a part of the power mechanism.

In the harvesting part of the combine of this invention, since it becomes possible to convey the grain stem after cutting to the threshing part side so that it may be separated from a cutting blade by a hardening wheel, it can prevent that the grain stem after cutting contacts a cutting blade. Therefore, the grain stem conveyance performance can be improved by preventing the occurrence of a problem related to the conveyance such that the buttocks are finely chopped or disturbed by the grain stem contact.

In the harvesting | reaping part of the combine of this invention, the grain stem after raising is guide | induced to a cutting blade with a dividing edge frame, and it can cut | disconnect smoothly with a cutting blade. In addition, the cutting blade can be protected from the lower side by the dividing frame. Therefore, since the grain stem after a minute and second frame is produced can be used as a guide body which guides to a cutting blade, and also as a protection body which protects a cutting blade, the structure of a cutting device can be simplified. Moreover, since it is not necessary to arrange | position the adjacent cutting blades overlapping, the cutting blade can be miniaturized.

BRIEF DESCRIPTION OF THE DRAWINGS It is a left side view which shows the whole structure of the combine which has a harvesting | reaping part which concerns on one Embodiment of this invention.
2 is a left side view showing the configuration of the harvesting unit.
3 is a plan view showing the structure of a harvesting unit.
It is a top view which shows the structure of a cutting device.
It is a left side view which shows the structure of a cutting device.
It is a top view which shows the structure of the drive system of a cutting device.
7 is a partial cross-sectional view showing the configuration of a drive system of a cutting device.
It is a top view which shows the structure of the cutting apparatus vicinity when the upper guide body and the lower guide body are provided.
It is a side view of a partial cross section which shows the structure of the cutting apparatus vicinity when the upper guide body and the lower guide body are provided.
10 is a cross-sectional view showing the configuration of a cutting structure of a cutting blade in the case of using an example of a fixing means.
It is sectional drawing which shows the structure of the fixing structure of the cutting blade in the case of using the fixing means of another example.
It is sectional drawing which shows the structure of the fixing structure of the cutting blade in the case of using the fixing means of another example. (a) It is a figure which shows the state which provided the upper collar. (b) It is a figure which shows the state which provided the cap. (c) It is a figure which shows the state which provided the lower collar.

Hereinafter, an embodiment of the present invention will be described.

First, the whole structure of the four-row mowing combine 1 which has the mowing part 20 which concerns on one Embodiment of this invention is demonstrated. On the other hand, the harvesting unit according to the present invention is not limited to the four-row harvesting combine, it is applicable to a multi-row harvesting combine.

As shown in FIG. 1, the combine 1 has a traveling section 10, a harvesting section 20, a threshing section 30, a sorting section 40 with respect to the base frame 2. And a grain reservoir 50, a straw discharge treatment unit 60, an engine unit 70, a mission unit 80, and a control unit 90.

The traveling part 10 is provided below the gas frame 2. The traveling part 10 has the crawler-type traveling apparatus 11 etc. which have a pair of left and right crawlers, and is comprised so that a crawler-type traveling apparatus 11 can drive a gas to a forward or backward direction.

The harvesting section 20 is provided at the front end of the base frame 2 so as to be able to lift and lower the base. The harvesting | reaping part 20 has the dividing tool 21, the raising device 22, the cutting device 23, the conveying apparatus 24, etc., and dividing the grain stem of a rice paddy field by the dividing tool 21. And the grain culm after the dividing by the raising device 22 is produced, the grain culm after the raising by the cutting device 23 is cut | disconnected, and the grain culm after cutting | disconnection is conveyed by the conveying apparatus 24 to the threshing part 30 side. It is composed.

The threshing part 30 is provided in the left front part of the base frame 2, and is arrange | positioned behind the harvesting | reaping part 20. FIG. The threshing part 30 has the conveying apparatus 31, a barrel, a receiving network, etc., and is handed the grain stem conveyed from the harvesting | reaping part 20 by the conveying apparatus 31, and the straw discharge processing part ( It is comprised so that it may convey to the 60) side, threshing the grain stem conveyed by a barrel and a receiving network, and pushing down the threshing material.

The sorting section 40 is provided on the left side of the base frame 2 and is disposed below the threshing section 30. The sorting unit 40 includes a rocking sorting device, a wind sorting device, a grain conveying device, a straw ejecting device, and the like, and the grains falling from the threshing unit 30 by the rocking sorting device are grained and washed. Shaking and sorting by dust and the like, and further sorting the wind after sorting by the wind sorting device with grain, straw, dust and the like, and conveying the grain after sorting by the grain conveying device to the grain storage section 50 side. The discharge device is configured to discharge straw or dust to the outside.

The grain storage part 50 is provided in the right rear part of the base frame 2, and is arrange | positioned in the right direction of the threshing part 30 and the sorting part 40. FIG. The grain storage part 50 has a grain tank 51, a grain discharging device 52, etc., and stores the grain conveyed from the sorting part 40 by the grain tank 51, and the grain discharging device 52 It is configured to be discharged to the outside after conveying the grains in the storage in any direction.

The straw discharge processing part 60 is provided in the left rear part of the gas frame 2, and is arrange | positioned behind the threshing part 30. The straw discharge processing part 60 has a straw discharge conveying apparatus, a straw discharge | disconnection cutting apparatus, etc., and receives the threshing finished grain stem conveyed from the threshing part 30 by a straw discharge conveying apparatus, and discharges it to outside as straw discharge | emission. Or it is conveyed to a straw discharge | disconnection cutting apparatus, and it is comprised so that it may be discharged | emitted after cutting | disconnection by a straw discharge | disconnection cutting apparatus.

The engine part 70 is provided in the right front part of the base frame 2, and is arrange | positioned in front of the grain storage part 50. As shown in FIG. The engine unit 70 has an engine or the like, and is configured to supply the power of the engine to a device of each part that uses the engine as a driving source through an appropriate transmission mechanism to drive the device of each part by the engine.

The mission unit 80 is provided in the right front part of the base frame 2 and is disposed in front of the engine unit 70. The mission unit 80 has a transmission and the like, and the power of the engine of the engine unit 70 can shift the power by the transmission before the power of the engine of the engine unit 70 is supplied to each device such as the driving unit 10 and the harvesting unit 20. It is configured to be.

The steering part 90 is provided in the right front part of the base frame 2, and is arrange | positioned above the engine part 70 and the mission part 80. FIG. The control unit 90 has various operation tools including a steering wheel 91 and a shift lever, a cockpit 92, a cabin 93, and the like, and operates an apparatus and the like of each part by the operation tool. The operator is seated at 92, and the cabin 93 is configured to cover the operation tool and the cockpit 92.

Thus, the combine 1 arrange | positions each part appropriately with respect to the base frame 2, and supplies the power of an engine from the engine part 70 to the operation of the operation tool in the control part 90 of each part apparatus. While the gas is driven in the traveling section 10, the harvesting section 20 harvests the grain stems of the rice paddies and the fields, and the threshing section 30 threshes the grain stem from the harvesting section 20. In the sorting unit 40, the threshing material from the threshing unit 30 is sorted, and the grain storage unit 50 stores the grains from the sorting unit 40, and the threshing unit in the straw discharge processing unit 60. It is configured to discharge straw straw from 30 to the outside.

Next, the structure of the harvesting | reaping part 20 is demonstrated.

As shown in FIG. 2, the harvesting section 20 has a harvesting frame 110 in addition to the above-described grass dividing tool 21, the raising device 22, the cutting device 23, and the conveying device 24. In the mowing frame 110, it is supported at the left front end of the base frame 2 and disposed in front of the base frame 2.

In the support part of the harvesting | reaping part 20, on the base frame 2 side, the left and right pair of support stand 3 is provided in the left-right front end part of the base frame 2 in parallel at predetermined intervals in the left-right direction. On each support 3 on the left and right, a pipe male member 4 is provided.

On the harvesting unit 20 side, a harvesting input pipe 111 is provided on the harvesting frame 110. And the harvesting | reaping input pipe 111 is provided horizontally horizontally in the left-right direction between the pipe male member 4 on the left-right support stand 3 as the upper side of the left front end of the gas frame 2, It is rotatably supported by the pipe male member 4 on the support 3 at the end of each.

In addition, in the mowing frame 110, together with the mowing input pipe 111, the vertical electric pipe 112, the horizontal electric pipe 113, the plurality of dichroic frames 114, the driving pipe 115, left and right, The raised longitudinally transmitted pipe 116, the raised horizontally transmitted pipe 117, the plurality of raised drive pipes 118, and the connection frame 119 are provided.

In the mowing frame 110, the longitudinal transmission pipe 112 is disposed in front of the mowing input pipe 111 and is provided extending from the left and right middle portions of the mowing input pipe 111 toward the front inclined downward. The horizontal transmission pipe 113 is disposed in front of the vertical transmission pipe 112, and extends from the distal end portion of the vertical transmission pipe 112 in the horizontal direction.

The plurality of dichroic frames 114 are arranged in front of the transverse transmission pipe 113 and are arranged in parallel with each other at appropriate intervals in the horizontal direction. The left and right outer branching frames 114A located on the outermost side of these branching frames 114 are provided extending from the left and right ends of the transverse electric pipe 113 toward the front, respectively.

Of the plurality of dichotomy frames 114, the inner dichotomy frame 114B located inward of the remaining left and right outer dichotomy frames 114A extends forward at predetermined intervals in the left and right directions at left and right intermediate portions of the drive pipe 115. It is prepared.

Here, these inner side minute frames 114B have the left and right widths of the inner side minute frame 114B and the right outer side minute frame 114A between the left and right outer side minute frames 114A, and the right and left widths of the inner side minute frames 114B. , And are arranged to be larger than the left and right widths of the inner dichotomy frame 114B and the left outer dichotomy frame 114A.

The drive pipe 115 is arrange | positioned under the front side inclination of the horizontal transmission pipe 113, and is provided horizontally horizontally in the left-right direction between the rear parts of the left and right outer side dichroic frames 114A. That is, the drive pipe 115 is parallel with each other at a predetermined interval in the front-rear direction with the transverse transmission pipe 113.

The left and right raising vertical transmission pipe 116 is arrange | positioned above the horizontal transmission pipe 113, and is provided to stand upward from the left and right edge part of the horizontal transmission pipe 113 toward a forward inclination upward. The raised horizontally-driven pipe 117 is disposed above the front side of the horizontally-driven pipe 113, and is provided horizontally horizontally in the left-right direction between the upper end portions of the left-rightly raised vertically-driven pipe 116.

The plurality of raised drive pipes 118 are disposed below the raised horizontally transmitted pipe 117 and extend downward from the left and right middle portions of the raised horizontally transmitted pipe 117 downward at predetermined intervals in the left and right directions. In addition, the connecting frame 119 is disposed at the rear of the raised horizontally transmitted pipe 117 and extends rearward from the left and right middle portions of the raised horizontally transmitted pipe 117 to the rear portion of the vertically driven pipe 112.

Thus, the mowing frame 110 includes the mowing input pipe 111, the longitudinal transmission pipe 112, the horizontal transmission pipe 113, the plurality of dividing frames 114, the driving pipe 115, and the left and right sides. It is configured by integrally connecting the raised longitudinally transmitted pipe 116, the raised horizontally transmitted pipe 117, the plurality of raised drive pipes 118, and the connecting frame 119.

And the mowing tool 21, the raising device 22, the cutting device 23, the conveying apparatus 24, etc. are suitably supported by such harvesting frame 110. As shown in FIG. When supported by the mowing frame 110, the dividing tool 21, the raising device 22, and the conveying device 24 are arranged from the front to the rear in this order, and the cutting device 23 is the raising device 22. ) Is disposed below the transport start end of the transport device 24.

As also shown in FIG. 3, the dividing tool 21 is equipped with four dividing boards 211 for 4 sets. These dichroic plates 211 each have a tapered shape, and are protruded forward from the front end portions of the plurality of dichotom frames 114, that is, the left and right outer dichotom frames 114A and the three inner dichotomy frames 114B.

The raising device 22 is provided with four raising cases 221 for four sets. Each production case 221 has a tine attachment chain 222 and the like, and is configured to enable rotational drive of these. These production cases 221 are arranged at appropriate intervals in the left and right directions at the rear of the dichotomy tool 21, and are formed between the subdivision frames 114 and the production drive pipes 118 before and after high. It is prepared upright.

The conveying apparatus 24 is equipped with the quenching mechanism 241 and the conveying mechanism 245. The hardening mechanism 241 is arrange | positioned at the front part side of the conveying apparatus 24, and is provided in the conveyance start end part of the conveying apparatus 24. As shown in FIG. On the other hand, the conveyance mechanism 245 is arrange | positioned at the back side of the conveyance apparatus 24, and is provided in the conveyance intermediate part and the conveyance termination part of the conveyance apparatus 24. As shown in FIG.

The quenching mechanism 241 is provided with left and right squeezing apparatuses 242L and 242R and four quenching rings 243. The left and right scavenging apparatuses 242L and 242R each have a pair of left and right paired projection belts and the like, and are configured to enable rotational driving thereof. The left and right hardening apparatus 242L * 242R is respectively arrange | positioned at the back of the production case 221, and is extended and provided in the inclined shape of the front and rear height from the production case 221 side toward the rear.

The left and right hardening apparatus 242L and 242R is also arrange | positioned so that a pair of left and right side attachment belts may be largely opened to the front between two left or right raising cases 221 in a pair of left and right, respectively. That is, the left and right scavenging apparatuses 242L and 242R are arranged so that the left and right widths of the front side of the two production cases 221 become wider and the left and right widths of the rear side become narrower.

The four hardening wheels 243 become a star wheel, respectively, and are comprised so that rotation drive is possible. Each hardening wheel 243 is arrange | positioned under the back part of each protrusion attachment belt of right and left hardening apparatus 242L * 242R, and is provided in the inclined shape of the front and back high.

The conveyance mechanism 245 is equipped with left and right lower conveyance apparatus 246L * 246R, the upper conveyance apparatus 247, the vertical conveyance apparatus 248, and the auxiliary conveyance apparatus 249. Each conveying apparatus has a chain etc., and is comprised so that these can be rotationally driven. The left lower conveying apparatus 246L is disposed behind the left squeezing apparatus 242L, and extends from the left squeezing apparatus 242L side toward the right inclined rearward in an inclined shape of the front and back high. The right lower side conveying apparatus 246R is arrange | positioned behind the right side hardening apparatus 242R, and is extended and provided in the inclined shape of the front and back height from the right side side squeezing apparatus 242R side toward the left side inclination rearward.

The upper conveying apparatus 247 is arrange | positioned above the right lower conveying apparatus 246R as the rear of the raising device 22, and extends in the inclined shape of the front and rear height toward the left inclination rearward from the right side hardening apparatus 242R side. The vertical conveying apparatus 248 is arrange | positioned below the upper conveying apparatus 247 as the rear of the left lower conveying apparatus 246L, and extends in the inclined shape of the front and rear height toward the left inclined rearward from the left lower conveying apparatus 246L side. It is prepared. The auxiliary conveying device 249 is disposed below the upper conveying device 247 as the rear of the vertical conveying device 248, and the conveying device 31 of the threshing part 30 is directed backward from the longitudinal conveying device 248. It is provided to extend.

The cutting device 23 includes a plurality of cutting blades composed of a cutting blade 231 and an auxiliary cutting blade 232, and an actuator 233. The cutting blade 231 and the auxiliary cutting blade 232 are disposed below the quenching mechanism 241 and are provided in the inclined shape of the front and rear high heights, as will be described later. And the actuator 233 is arrange | positioned in the vicinity of the cutting blade 231 and the auxiliary cutting blade 232, and is interlocked with these cutting blade 231 and the auxiliary cutting blade 232.

Moreover, in the mowing tool 110 which supports these dividing tools 21 and each apparatus, the mowing input shaft 121 is inserted in the mowing input pipe 111, and before mowing inside each other pipe. Coaxial is inserted. Then, the raising device 22 and the conveying device 24 are connected to the engine of the engine unit 70 via each mowing transmission shaft or mowing input shaft.

In this way, the production apparatus 22 and the conveying apparatus 24 are comprised so that the engine of the engine part 70 can be used as a drive source, and can drive and obtain the power supplied from it. In addition, the cutting device 23 is configured to be driven independently from the engine, in other words, so that the actuator 233 is used as a drive source and can be driven independently using its power.

By such a structure, when each apparatus is driven in the harvesting | reaping part 20, after dividing so that the grain stem of a paddy field and a field may be separated one by one by the dividing board 211 of the dividing tool 21, the raising device 22 ), The grain stem after the second is produced by the casing 221. Subsequently, in the quenching mechanism 241 of the conveying device 24, after being introduced between the left and right two forming cases 221 by left and right squeezing apparatuses 242L and 242R and the squeezing ring 243, respectively. The root side of two grains of left or right grains is scraped together in one bundle.

At this time, the grain stem after being produced by the cutting blade 231 and the auxiliary cutting blade 232 in the cutting device 23 is cut on the root side. After being cut | disconnected, the grain stem for 2 sets of right sides is conveyed to the left inclination rear by the lower right conveyance apparatus 246R by the conveyance mechanism 245 of the conveying apparatus 24, and it is left by the lower lower conveying apparatus 246L. Two sets of grain stems are conveyed to the right inclined rear side, and the base side of four grains of grain stems joins in the vicinity of the conveyance terminal part of the right lower conveyance apparatus 246R.

Subsequently, the tip end side of the grain stem for four sets is gathered by the upper conveying apparatus 247, and it conveys to the left inclination rear, and is near the conveyance end part of the right lower conveying apparatus 246R by the vertical conveying apparatus 248. The base side of four grains joined together is conveyed to the conveying apparatus 31 of the threshing part 30 to the rear inclination upward, and the base side of a grain stem is supported by the auxiliary conveying apparatus 249 from the longitudinal conveying apparatus 248. It is handed over to the conveying apparatus 31 of the threshing part 30. In this way, the mowing section 20 performs a series of mowing operations of the grain stem.

In addition, the harvesting frame 110 in the harvesting unit 20 is connected to the front end of the vertical transmission pipe 112 to the front end of the elevating cylinder (5), which extends from the front lower portion of the front of the gas frame (2) forward. According to the expansion / contraction drive of the elevating cylinder 5, it is comprised so that rotation of the harvesting input pipe 111 can rotate in an up-down direction. On the other hand, the lifting cylinder 5 can be stretched and driven in accordance with manual operation or the like of the operation tool of the control unit 90.

The mowing frame 110 is rotated upward in the rotation of the mowing input pipe 111 when the lifting cylinder 5 is stretched and driven, and when the lifting cylinder 5 is stretched and driven. Is rotated downward in the rotation of the mowing input pipe 111. Thereby, the whole harvesting | reaping part 20 raises with respect to a gas at the time of the rotation above the harvesting frame 110, and falls with respect to a base at the time of the rotation of the harvesting frame 110 below.

Next, the structure of the vicinity of the cutting device 23 used as a main part of this invention is demonstrated.

As shown in FIG. 4 and FIG. 5, the cutting device 23 has the tide of the grain stem produced by the said producing apparatus 22, ie, the number of cutting blades 231 and the same number of cutting blades of the grain harvested, and 1 Auxiliary cutting blades 232 and actuators 233 are provided. In the present embodiment, since the number of harvesting assistants is four sets, the cutting device 23 includes the first cutting blade 231A, the second cutting blade 231B, the third cutting blade 231C, and the fourth cutting blade ( Four cutting edges 231 to be 231D are provided.

The first to fourth cutting blades 231A to 231D are each formed in a disk shape with a diameter of a predetermined width, and are the same shape. The auxiliary cutting blade 232 is formed in a disk shape similarly to the cutting blade 231, and has a smaller diameter than the first to fourth cutting blades 231A to 231D. The first to fourth cutting blades 231A to 231D and the auxiliary cutting blades 232 are configured with a blade portion at the outer circumference thereof and a fixed portion at the center portion thereof.

On the other hand, the diameters of the first to fourth cutting blades 231A to 231D are set to such an extent that one trillion grains can be cut. On the other hand, the diameter of the auxiliary cutting blade 232 is appropriately set in accordance with the cutting width of the cutting device 23 in the range smaller than the diameter of the first to fourth cutting blades (231A to 231D). In practice, the auxiliary cutting blade 232 is changed to the one having an appropriate diameter according to the cutting width of the cutting device 23 is used.

The first to fourth cutting blades 231A to 231D and the auxiliary cutting blades 232 are disposed in front of the transverse electric pipe 113 and are disposed from left to right in this order between the left and right outer dichroic frames 114A. . Here, the first to fourth cutting blades 231A to 231D are arranged on the same straight line in the left and right directions on the same plane, respectively. The auxiliary cutting edge 232 is the fourth cutting edge 231D of the left and right one (right side) located on the outermost side of the plurality of cutting edges 231 on the substantially same plane as the first to fourth cutting edges 231A to 231D. Are arranged in the outward direction.

The first cutting blade 231A located on the outermost side of the left and right (left) of the plurality of cutting blades 231 has a left outer side such that the left end of the blade portion slightly overlaps with the left outer subdividing frame 114A in plan view. It is disposed just inside the dividing frame 114A. The second cutting blade 231B is disposed between the neighboring inner dichroic frames 114B such that the respective left and right ends of the blade portion slightly overlap with the inner dichotomy frame 114B in plan view. The third cutting blade 231C is disposed between the neighboring inner dichroic frames 114B such that the respective left and right ends of the blade portion slightly overlap with the inner dichotomy frame 114B in plan view.

The fourth cutting blade 231D is disposed just outside of the inner dichotomy frame 114B so that the left end of the blade portion slightly overlaps with the inner dichotomy frame 114B in plan view. The auxiliary cutting edge 232 is disposed just inside the right outer dichotomy frame 114A so that the right end of the blade portion slightly overlaps with the right outer dichotomy frame 114A when viewed in plan. That is, the fourth cutting blade 231D and the auxiliary cutting blade 232 are both disposed between the neighboring inner dichotomy frame 114B and the outer dichotomy frame 114A.

Adjacent cutting blades 231 of these cutting blades 231 are arranged to take a predetermined width in the left and right direction in advance without mutually overlapping a part of them. Specifically, the first cutting blade 231A and the second cutting blade 231B, the second cutting blade 231B and the third cutting blade 231C, the third cutting blade 231C and the fourth cutting blade 231D ) Are arranged to take approximately the same width as the left and right widths of the inner dichroic frame 114B, respectively.

On the other hand, the neighboring auxiliary cutting blade 232 and the fourth cutting blade 231D are arranged to overlap a part of each other. In this way, the first to fourth cutting blades 231A to 231D and the left outer dichroic frame 114A or the inner dichroic frame 114B are disposed so as not to have a gap therebetween when viewed in plan view, respectively, and the auxiliary cutting blades. 232, the right outer dichroic frame 114A, and the 4th cutting blade 231D are arrange | positioned so that a clearance gap may not mutually generate | occur | produce, respectively, when viewed in planar view.

Here, since the auxiliary cutting edge 232 is set larger than the left and right width between the inner dichotomy frame 114B and the right outer dichotomy frame 114A, as mentioned above, it is larger than the left and right width between the other dichotomy frames 114. It is arrange | positioned so that this may partially overlap with the 4th cutting blade 231D which adjoins between the inner side dichotomy frame 114B and the right outer side dichotomy frame 114A.

In addition, the 1st-4th cutting blades 231A-231D are respectively arrange | positioned just below the each hardening ring 243 with which the hardening mechanism 241 of the conveying apparatus 24 was equipped, and the raising apparatus 22 side It is lowered and the threshing part 30 side becomes high, ie, it is provided in the inclined shape of the front and back high. Thus, the squeezed ring 243 and the first to fourth cutting blades 231A to 231D are all provided in the inclined shape of the front and rear high heights, and have different inclination degrees, that is, arranged vertically without being parallel.

The degree of inclination with respect to the horizontal surface of each of the first to fourth cutting blades 231A to 231D is set to be gentler than the degree of inclination with respect to the horizontal surface of each of the small quenching rings 243. In other words, the degree of inclination of the first to fourth cutting blades 231A to 231D with respect to the horizontal surface is such that each of the small squeezing wheels 243 is horizontal to the horizontal surface than the first to fourth cutting blades 231A to 231D. It is set to incline greater with respect.

The inclination degree of each of the first to fourth cutting edges 231A to 231D is the first to fourth cutting edges 231A when the transverse electric pipe 113 of the mowing frame 110 disposed further behind is viewed from the side. 231D) is set below the extension line toward the threshing part 30 side. On the other hand, the degree of inclination of the plurality of squeezed ring 243 is set the same.

In addition, the auxiliary cutting blade 232 is disposed on the lower right side of the right squeezing ring 243 located at the outermost side among the plurality of squeezing rings 243, and is similar to the first to fourth cutting blades 231A to 231D. It is provided in the shape of a slope. The inclination degree of the auxiliary cutting blade 232 is set to the same degree as the inclination degree of the 1st-4th cutting blades 231A-231D.

The auxiliary cutting blade 232 also has the front end side of the blade portion of the first to fourth cutting edges 231A to 231D in the right outer side of the front portion of the fourth cutting edge 231D, and the left and right directions. It is placed forward to be aligned. Thereby, the magnitude | size which enables the actuator 233 to be provided in the right outer side direction of the back part of the 4th cutting blade 231D as the back of the auxiliary cutting blade 232, ie, at the right end of the cutting device 23. An actuator installation space 235 is formed.

Moreover, in the side of the 1st-4th cutting blades 231A-231D and the auxiliary cutting blade 232, the back part of each dichotomy frame 114 is the 1st-4th cutting blades 231A-231D, and auxiliary cutting blades. It is bent in the inclined shape of the front and rear high heights with the inclination degree similar to (232). The rear portion of these dichroic frames 114, the first to fourth cutting edges 231A to 231D, and the auxiliary cutting edges 232 are arranged up and down in parallel with each other when viewed from the side.

And the left and right cover bodies 130 are extended toward the front inclination upward at the rear part of the left and right outer side dichroic frames 114A among the some dichroic frames 114. Each cover body 130 on the left and right sets the front, rear, and top and bottom widths larger than the front, rear, and top and bottom widths of the first cutting blade 231A and the auxiliary cutting blade 232 positioned at the outermost side, and the first cutting blade 231A. Or it is configured to cover the auxiliary cutting blade 232 from the left and right outward direction.

As shown to FIG. 6 and FIG. 7, the actuator 233 is provided in the actuator installation space 235 mentioned above. The actuator 233 is constituted by a hydraulic motor, and supplies power to the first to fourth cutting blades 231A to 231D and the auxiliary cutting blades 232 via an electric mechanism, so that they can be driven to rotate. . In addition, the actuator 233 may be comprised by an electric motor etc., and is not limited to a hydraulic motor.

The actuator 233 is drive-controlled by the control apparatus provided in the arbitrary position of gas. The control device is connected to the actuator 233, and a detection sensor that detects a driving state of the operation tool of the control unit 90 and the driving device 22 of the harvesting unit 20 and the conveying device 24, for example. For example, a harvesting clutch detection sensor that detects a cut-out state of a harvesting clutch that switches power supply from the engine of the engine unit 70 to the raising device 22 and the conveying device 24. Connected.

Then, the driving state of the actuator 233 is controlled by any one of driving in the forward rotation direction, driving in the reverse rotation direction, and stopping by the control device according to the manual operation of the operation tool of the control unit 90. It is configured to be. Further, or, depending on the driving state of the raising device 22 or the conveying device 24 of the harvesting unit 20 detected by the detecting sensor, the driving device or driving device is driven or stopped in conjunction with the raising device 22 or the conveying device 24. It is configured to be controlled automatically in one state.

On the other hand, the actuator may be configured not only to drive control electrically but also to drive control mechanically. For example, when the actuator is a hydraulic motor, a switching valve is arranged in the middle of the pipe connecting the hydraulic motor and the hydraulic pump for sending the working oil to the hydraulic motor, and the operating tool and the mowing clutch of the control unit are interlocked with the switching valve. By doing so, it becomes possible to control the driving state of the actuator as described above.

The actuator 233 is interposed between the transverse electric pipe 113 and the drive pipe 115 in the actuator installation space 235. The drive pipe 115 is arranged as described above, and is disposed to pass below the first to fourth cutting blades 231A to 231D and the auxiliary cutting blades 232, particularly near the lower portions of these fixing portions, and to the left and right. It is connected to the rear part which became the inclined shape of the front and back height of the outer dichroic frame 114A at each end of.

The drive pipe 115 is provided with the 1st extension part 115b and the some 2nd extension part 115c with respect to the pipe main body 115a extended in the left-right direction. The first extension part 115b is provided extending from the right side of the pipe main body 115a toward the front and rear solid state near the lower side of the auxiliary cutting blade 232. The first extension portion 115b extends toward the front so that the front end does not protrude beyond the blade portion past the fixing portion of the auxiliary cutting blade 232, while extending toward the rear so that the rear end protrudes above the blade portion. It is connected with the actuator 233 at this rear end.

The plurality of second extension portions 115c are disposed below the fixing portions of the first to fourth cutting blades 231A to 231D and the auxiliary cutting blades 232, respectively. Of these second extension portions 115c, four second extension portions 115c are respectively located from the left and right middle portions of the pipe main body 115a, and one second extension portion 115c is moved forward from the first extension portion 115b. It is provided extending to the front of the 1st-4th cutting blades 231A-231D and the auxiliary cutting blade 232 toward inclination upward.

In this way, the transmission mechanism of the cutting device 23 is provided inside the drive pipe 115 composed of the pipe main body 115a, the first extension part 115b, and the plurality of second extension parts 115c. Prepared. The transmission mechanism includes a vertical drive shaft 236, a horizontal drive shaft 237, a plurality of rotation drive shafts 238, a plurality of bevel gears, and the like.

The vertical drive shaft 236 is disposed inside the first extension part 115b and extends downward from the actuator 233 toward the front side so as to pass below the fixing part of the auxiliary cutting blade 232. The vertical drive shaft 236 is rotatably supported via a bearing in the first extension portion 115b at an appropriate location in the front-rear direction, and is linked to the output shaft of the actuator 233. On the other hand, the vertical drive shaft 236 can also serve as the output shaft of the actuator 233.

The horizontal drive shaft 237 is disposed inside the pipe main body 115a and extends from the middle of the vertical drive shaft 236 to the left side so as to pass below the fixing portion of the first to fourth cutting blades 231A to 231D. It is prepared. The horizontal drive shaft 237 is rotatably supported by the pipe body 115a via a bearing at an appropriate location in the left and right directions, and is interlockedly connected via the vertical drive shaft 236 and the bevel gear.

The plurality of rotation drive shafts 238 are disposed inside the second extension part 115c, respectively, and the first to fourth cutting blades 231A are directed upward from the middle part of the horizontal drive shaft 237 or the vertical drive shaft 236. 231D) and the fixing part of the auxiliary cutting blade 232 are provided. Each of the plurality of rotation drive shafts 238 is rotatably supported by a second extension portion 115c via a bearing at an appropriate location in the vertical direction, and the rotation drive shafts on the first to fourth cutting blades 231A to 231D. 238 is interlocked through the horizontal drive shaft 237 and the bevel gear, the rotary drive shaft 238 on the side of the auxiliary cutting blade 232 is interlocked through the longitudinal drive shaft 236 and the bevel gear.

And the 1st-4th cutting blades 231A-231D are the back side of the 1st-4th cutting blades 231A-231D so that the 1st-4th cutting blades 231A-231D may be orthogonal to the axial direction of the rotation drive shaft 238 when viewed from the side. It is provided to be fixed to the front end of the rotation drive shaft 238 located in the. Similarly, the auxiliary cutting blade 232 is fixed to the distal end of the rotary drive shaft 238 located at the rear of the auxiliary cutting blade 232 at the fixing portion so as to be orthogonal to the axial direction of the rotary drive shaft 238 when viewed from the side. It is prepared.

Thus, the actuator 233 is interlocked by the first to fourth cutting blades 231A to 231D, the vertical drive shaft 236, the horizontal drive shaft 237, and the plurality of rotation drive shafts 238. The actuator 233 is also interlocked by the auxiliary cutting blade 232, the longitudinal drive shaft 236, the rotation drive shaft 238, and the like.

As a result, when the actuator 233 is driven based on the drive control of the control device, the power is applied from the actuator 233 to the first to fourth cutting blades 231A to 231D and the auxiliary cutting blade 232. The first to fourth cutting blades 231A to 231D and the auxiliary cutting blades 232 are rotationally driven with the rotation driving shaft 238 as the rotation center.

The rotational speeds of the first to fourth cutting blades 231A to 231D and the auxiliary cutting blades 232 at the time of rotational drive can be arbitrarily adjusted by the actuator 233 being appropriately driven and controlled by the control device, and the first to fourth cutting blades 231A to 231D. When the grain stem is cut by the four cutting blades 231A to 231D and the auxiliary cutting blades 232, it is set to have a constant rotational speed and is set to have the same rotational speed. In addition, you may set so that the rotational speed of the 1st-4th cutting blades 231A-231D may be faster than the rotational speed of the auxiliary cutting blade 232. FIG.

In addition, the rotation direction of the 1st thru | or 4th cutting blades 231A-231D is set so that rotation directions of the adjacent cutting blades 231 may be mutually different rotation directions by a transmission mechanism. Specifically, the rotation direction of the first to fourth cutting blades 231A to 231D is the first cutting blade 231A, the second cutting blade 231B, the second cutting blade 231B, and the third cutting blade 231C. ), So that the rotation directions of the third cutting blade 231C and the fourth cutting blade 231D are different from each other.

The rotational direction of the auxiliary cutting blade 232 is set to be the same rotational direction as that of the neighboring cutting blade 231. Specifically, the rotation direction of the auxiliary cutting blade 232 is set by the transmission mechanism so that it may become the same rotation direction as the rotation direction of the 4th cutting blade 231D.

In this embodiment, the rotation direction of the 1st cutting blade 231A and the 3rd cutting blade 231C is set to the clockwise rotation direction in FIG. 4, and the 2nd cutting blade 231B and the 4th cutting blade 231D are shown. Rotation direction is set to the counterclockwise rotation direction in FIG. The rotation direction of the auxiliary cutting blade 232 is set to the counterclockwise rotation direction in FIG. 4 similarly to the fourth cutting blade 231D.

Thus, when the first to fourth cutting blades 231A to 231D and the auxiliary cutting blades 232 are rotationally driven, the first cutting blades 231A and the second cutting blades 231B respectively have upward quenching rings ( It is driven to rotate in the same rotational direction as that of 243, that is, the quenching direction of the quenching ring 243 and the left quenching device 242L.

The third cutting blade 231C and the fourth cutting blade 231D are respectively driven to rotate in the same rotational direction as the upper squeezed ring 243, that is, the squeezed directions of the squeezed ring 243 and the right squeezing device 242R. have. The auxiliary cutting blade 232 is driven to rotate in the same rotational direction as the fourth cutting blade 231D and the above-mentioned squeezed ring 243, that is, the squeezed direction of the squeezed ring 243 and the right squeezing device 242R. .

In addition, the rotation direction of each of the 1st-4th cutting blades 231A-231D and the auxiliary cutting blades 232 can also be switched to the rotation direction opposite to the above. The switching of the rotational direction is performed by operating the actuator 233 by the control device by operating an operation tool or the like of the control unit 90, and driving the device in the forward rotation direction or the reverse rotation direction to become the rotation direction opposite to the previous one. All.

With this structure, when the producing apparatus 22 and the conveying apparatus 24 are driven in the vicinity of the cutting device 23, the cutting device 23 is also driven simultaneously. That is, power is transmitted from the actuator 233 to the first to fourth cutting blades 231A to 231D and the auxiliary cutting blades 232, and the first to fourth cutting blades 231A to 231D and the auxiliary cutting blades 232. ) Is rotationally driven at the rotational speed and rotational direction set as described above.

The left and right two-thick grain stems produced after the minute and second are scraped backwards by the left and right squeezing apparatuses 242L and 242R and the squeezing ring 243 of the conveyance mechanism, respectively, and each of the left and right outer sedge frames The first to fourth cutting edges 231A to 231D and the auxiliary cutting edges (114A) and the inner dichotomy frame 114B or between the inner dichotomy frames 114B are passed by the respective dichotomy frames 114. 232) is directed toward the side.

In addition, it is also the right and left outer side that passes between the left outer side minute frame 114A and the inner side minute frame 114B, and between the inner side minute frame 114B and the right outer side minute frame 114A among the grain stems by one set. The cover body 130 on the grass dividing frame 114A is also guided toward the quenching direction side, that is, the inside of each of the left and right quenching devices 242L and 242R.

When each of the grain stems is guided by the respective dichotomy frames 114 to reach the first to fourth cutting edges 231A to 231D and the auxiliary cutting edges 232, the respective grain stems are left outer subdivision frames ( It is cut by the 1st cutting edge 231A between 114A) and the inner side dividing frame 114B, and is connected to the 2nd cutting edge 231B or the 3rd cutting edge 231C between inner inner dichroic frames 114B, respectively. Is cut by Furthermore, between the inner dichotomy frame 114B and the right outer dichotomy frame 114A, it is cut | disconnected by the 4th cutting edge 231D and the auxiliary cutting edge 232. As shown in FIG.

At this time, the grain stem is cut while being sent by the first to fourth cutting blades 231A to 231D and the auxiliary cutting blades 232 while being sent in the quenching direction of the quenching wheels 243 and the respective quenching devices 242L and 242R. Each of the left and right scavenging apparatuses 242L and 242R and the squeezing ring 243 is scraped into a bundle of two or more left or right pairs. And it is conveyed back by the lower conveyance apparatus 246L * 246R of the left and right of the conveyance mechanism 245 as mentioned above. In this manner, work in the vicinity of the cutting device 23 is performed.

In such a cutting device 23, as shown in FIG. 8 and FIG. 9, the upper guide body 131 and the lower guide body 132 can also be provided in the dichotomous frame 114. FIG. However, without providing both of the upper guide body 131 and the lower guide body 132 in the dichotomous frame 114, only one of them may be provided alone.

The upper guide body 131 and the lower guide body 132 are a pair of upper and lower pairs, and are provided with respect to one cutting blade 231. The upper guide body 131 is formed of a rod-shaped body that is bent at an obtuse angle in the middle portion, and is configured with a fixing portion 131a at one bent portion and a guide portion 131b at the other bent portion. The lower guide body 132 is composed of a rod-shaped body that is bent at an obtuse angle in the middle portion, and is configured with a fixing portion 132a at one bent portion and a guide portion 132b at the other bent portion. However, the upper guide body 131 and the lower guide body 132 are not limited to a rod-shaped body, but may be a plate.

In the upper guide body 131, the fixing portion 131a extends in the front-rear direction along the dividing frame 114 and is fixed to the rear portion of the dividing frame 114 near the front of the corresponding cutting edge 231. The guide part 131b extends inclined rearward from the fixing part 131a, and is arrange | positioned so that a rear end side may be located above the cutting edge 231 and is located in the vicinity of the center of the cutting blade 231.

In the lower guide body 132, the fixing part 132a extends in the front-rear direction along the dividing frame 114 and is fixed to the rear portion of the dividing frame 114 near the front of the corresponding cutting edge 231. The guide part 132b extends inclined rearward from the fixing part 132a, and is arrange | positioned so that the rear end side may be located near the center of the cutting blade 231 as the lower side of the cutting blade 231.

In addition, the guide portions 131b and 132b of the upper guide body 131 and the lower guide body 132 have the squeezing ring 243 and the left and right squeezing devices 242L and 242R depending on the configuration of the squeezing mechanism 241. ) Extends in the quenching direction.

Specifically, for example, in the provision with respect to the first cutting blade 231A, each guide portion 131b and 132b is right inclined rearward from the fixing portions 131a and 132a fixed to the outer dichroic frame 114A. Extends towards. In the provision with respect to the 2nd cutting blade 231B, each guide part 131b and 132b extends toward the left inclined rearward from the fixed part 131a and 132a fixed to the rear part of the inner dichroic frame 114B.

Thus, by providing the upper guide body 131 and the lower guide body 132 in the dichotomy frame 114, as described above, when guided toward the cutting blade 231 side in the dichotomy frame 114, In the upper guide body 131 and the lower guide body 132, the cutting edge 231 is further guided from the side of the grass dividing frame 114 toward the center near the center of the cutting blade 231, and supported at two positions above and below the grain stem. It becomes possible to cut.

In addition, in such a cutting device 23, the cutting blade 231 is detachably fixed to the rotation drive shaft 238 from below by the fixing means of the following example. On the other hand, the auxiliary cutting blade 232 is fixed like the cutting blade 231.

The fixing means is for enabling the detachment of the cutting blade 231 in a state in which the harvesting frame 110 is rotated upward, that is, in a state in which the harvesting unit 20 is raised with respect to the body, for example, in FIG. 10. As shown, it comprises the several bolt 251, the nut 252, the fixed plate 253, etc., and is comprised.

The plurality of bolts 251 are disposed on the upper surface side of the cutting blade 231 at a fixed portion provided in the center of the cutting blade 231, and fixed at predetermined intervals in the circumferential direction with respect to the rotation center of the cutting blade 231. It is prepared. Each bolt 251 is a welding bolt or the like, and is fixed to the cutting blade 231 by welding or the like so as not to protrude upward from the head as much as possible, while the threaded portion passes through the cutting blade 231 from the cutting blade 231. It protrudes downward.

The fixed plate 253 has the same diameter as the fixed portion of the cutting blade 231 and is formed in a disk shape. The fixed plate 253 is disposed to be orthogonal to the axial center direction of the rotary drive shaft 238 when viewed from the side, and is fixed to the distal end of the rotary drive shaft 238 at the center. The fixed plate 253 is provided with the same number of bolt insertion holes as the bolt 251 at predetermined intervals in the circumferential direction with respect to the rotation center of the fixed plate 253.

When the cutting blade 231 is fixed, each cutting blade 231 having a plurality of bolts 251 installed therethrough inserts each bolt 251 into a corresponding bolt insertion hole of the fixing plate 253. It is mounted on the fixed plate 253. Thereafter, the threaded portion of each bolt 251 protruding from the fixing plate 253 side is screwed into the screw hole of the nut 252. Thereby, the cutting blade 231 is fastened to the fixed board 253 by the bolt 251 and the nut 252 in several places, and is fixed to the rotation drive shaft 238 via the fixed board 253.

On the other hand, when removing the cutting blade 231, each nut (with the cutting blade 231 fixed to the rotation drive shaft 238 via the fixing plate 253 with the bolt 251 and the nut 252). 252 is loosened and removed from the corresponding bolt 251. As a result, the cutting blade 231 and the fixed plate 253 are released from each other, and the cutting blade 231 can be detached from the rotation drive shaft 238. In this way, the cutting blade 231 is detachably fixed from below with respect to the rotation drive shaft 238 by the fixing means.

In addition, in the cutting device 23, the cutting blade 231 can be configured to be detachably fixed to the rotation drive shaft 238 from above by the fixing means of another example as follows. Also, the auxiliary cutting blade 232 is fixed similarly to the cutting blade 231.

The fixing means makes it possible to perform detachment of the cutting blade 231 from above the harvesting section 20 in a state where the harvesting frame 110 is rotated downward, that is, the harvesting section 20 is lowered with respect to the body. For example, as shown in FIG. 11, it is comprised including the some bolt 261, the nut 262, the fixed board 263, etc.

The fixing plate 263 has a diameter the same as that of the fixing portion of the cutting blade 231 and is formed in a disk shape. The fixed plate 263 is disposed to be orthogonal to the axial center direction of the rotation drive shaft 238 when viewed from the side, and is fixed to the tip end portion of the rotation drive shaft 238 at the center.

The plurality of bolts 261 are disposed on the lower surface side of the fixing plate 263 around the fixing unit with the rotation drive shaft 238 of the fixing plate 263, and circumferentially with respect to the rotation center of the fixing plate 263. It is provided to be fixed at predetermined intervals. Each bolt 261 fixes the head part by the fixing plate 263 and welding, etc., and penetrates the screw part through the fixing plate 263 to protrude upward from the cutting blade 231 side.

Here, in the fixed part provided in the center part of the cutting blade 231, these bolts 261 and the same number of bolt insertion holes are provided in the circumferential direction with respect to the rotation center of the cutting blade 231 at predetermined intervals.

When the cutting blade 231 is fixed, the cutting blade 231 having a plurality of bolt insertion holes inserts the bolt insertion holes into the corresponding bolts 261 of the fixing plate 263, thereby fixing the cutting blades 231. It is mounted on the van 263. Thereafter, the threaded portion of each bolt 261 protruding from the cutting edge 231 side is screwed into the screw hole of the nut 262. As a result, the cutting blade 231 is fastened to the fixing plate 263 at a plurality of positions by the bolt 261 and the nut 262, and is fixed to the rotation drive shaft 238 via the fixing plate 263.

On the other hand, when removing the cutting blade 231, each nut (with the cutting blade 231 fixed to the rotation drive shaft 238 via the fixing plate 263 with the bolt 261 and the nut 262). 262) is released. Thereby, the fastening of the cutting blade 231 and the fixed plate 263 is released, and the cutting blade 231 can be detached from the rotation drive shaft 238. In this way, the cutting blade 231 is detachably fixed to the rotation drive shaft 238 from above by the fixing means.

In addition, in the other example, the said fixing means is equipped with the bolt 271, the support board 273, etc., as shown to FIG. 12 (a) (b).

The support plate 273 has a diameter the same as that of the fixing portion of the cutting blade 231 and is formed in a disk shape. A bolt insertion hole is provided in the center of the support plate 273. In addition, a bolt insertion hole that can communicate with the bolt insertion hole is provided at a position coinciding with the bolt insertion hole of the support plate 273 of the cutting blade 231, and the bolt is provided at the center of the rotation drive shaft 238. A screw hole communicable with the insertion through hole is provided to extend downward from the distal end face in the axial direction.

And, when fixing the cutting blade 231, the cutting blade 231 is first mounted on the support plate 273 so as to coincide each other with the bolt insertion hole. Thereafter, the bolt 271 is inserted into the bolt insertion hole of the cutting blade 231 and the support plate 273 from the upper surface side of the cutting blade 231 and is fitted into the screw hole of the rotation drive shaft 238. Thereby, while the cutting blade 231 is supported by the support board 273, it is fastened to the rotation drive shaft 238 with the bolt 251, and is fixed.

On the other hand, when the cutting blade 231 is removed, the cutting blade 231 is fixed to the rotation drive shaft 238 with the bolt 271, the bolt 271 is loosened and separated from the screw hole of the rotation drive shaft 238. do. As a result, the cutting blade 231 and the rotation drive shaft 238 are released, and the cutting blade 231 can be detached from the rotation drive shaft 238. In this way, the cutting blade 231 is detachably fixed from above with respect to the rotation drive shaft 238 by the fixing means.

In addition, when fixing the cutting blade 231 to the rotary drive shaft 238 as described above, weeds and the like to the bolt 271 of the fixing means, the grain stem after cutting protrudes upward from the upper surface side of the cutting blade 231. There exists a possibility that the problem that the lower surface side of this cutting blade 231 is caught by the rotation drive shaft 238 exposed to the outside may arise. Therefore, as a countermeasure of this problem, the following structure can also be given to the fixed part of the cutting blade 231.

For example, as shown to Fig.12 (a), the upper collar 276 is provided in the fixing part in the upper surface side of the cutting blade 231. As shown to FIG. The upper collar 276 is made of a trapezoidal cylindrical body when viewed from a side cross-section having an outer diameter where the upper end is a small diameter and the lower end is a large diameter and an inner diameter into which the head of the bolt 271 can be inserted, and is made of rubber or the like. do. A disk portion 276a for closing the upper portion of the upper collar 276 is provided, and a bolt insertion hole is provided in the center of the disk portion 276a.

And, when fixing the cutting blade 231, the upper collar 276 is mounted on the cutting blade 231 to match the bolt through-holes of each other, the bolt 271 from the upper surface side of the cutting blade 231 It is inserted into the bolt insertion hole of the upper collar 276 and then into the bolt insertion hole of the cutting blade 231 and the support plate 273 as described above, and the screw hole 238a of the rotation drive shaft 238. Is inserted into As a result, the upper collar 276 is fixed to the rotation drive shaft 238 together with the cutting blade 231.

Or as shown in FIG.12 (b), the cap 277 is provided in the fixing part in the upper surface side of the cutting blade 231. FIG. The cap 277 is formed of a convex shape in which the upper surface is a spherical surface and the lower surface is a flat surface, and is made of rubber or the like. A fitting groove 277a which is opened downward is formed in the center of the lower surface of the cap 277, and the head portion of the bolt 271 can be fitted into the fitting groove.

When the cutting blade 231 is fixed, the cutting blade 231 is fixed to the rotation drive shaft 238 with the bolt 271 as described above, and then the fitting groove 277a of the cap 277 is bolted ( It fits in the head part of 271 from the upper side of the cutting blade 231, and the cap 277 is fixed to the cutting blade 231 in close contact with the lower surface.

By such a configuration, the bolt 271 is covered with the upper collar 276 or the cap 277 on the upper surface side of the cutting blade 231, and the grain stem after cutting can be prevented from being caught by the bolt 271. Become. In addition, even when weeds and the like are deposited on the upper surface of the cutting blade 231, it is possible to prevent these from being wound on the bolts 271. On the other hand, by using the bolt 271 as a hexagonal hole bolt, the head portion of the bolt 271 can be made as small as possible to reduce the size of the upper collar 276 or the like.

12C, the lower collar 278 is provided in the fixing part at the lower surface side of the cutting blade 231. As shown in FIG. The lower collar 278 is composed of a cylindrical body having an inner diameter larger than the diameter of the rotation drive shaft 238 and an outer diameter smaller than the inner diameter of the cylindrical second extension portion 115c, and is made of rubber, resin, or the like. The lower side of the lower collar 278 is provided with a fitting portion 278a having an outer diameter approximately equal to the inner diameter of the second extension portion 115c, and on the upper side a flange-like having an outer diameter larger than the outer diameter of the second extension portion 115c. A contact portion 278b is provided.

And, when the cutting blade 231 is fixed, the lower collar 278 is fitted to the rotary drive shaft 238 before the cutting blade 231 is fixed to the rotary drive shaft 238, and the fitting portion 278a is in this state. The contact portion 278b is in contact with the cutting blade 231 fixed to the rotation drive shaft 238 while being inserted into the front end side opening portion of the second extension portion 115c. On the other hand, in this example, the above-described support plate 273 is not included in the fixing means.

With this configuration, the lower driving collar 278 is covered with the lower collar 278 on the lower surface side of the cutting blade 231, and in particular, the gap between the lower collar 278 and the cutting blade 231 at the contact portion 278b. It is possible to prevent the weeds and the like from being caught by the rotation drive shaft 238. In addition, since the lower collar 278 is made of rubber or resin, it is possible to prevent abnormal wear of the cutting blade 231 in contact with the contact portion 278b and to prevent unnecessary power consumption.

As mentioned above, the harvesting | reaping part 20 of the combine 1 which concerns on one Embodiment of this invention produces the dividing tool 21 which divides a grain stem, and the plural sets of grain stems divided by the dividing tool 21. (22) and a cutting device (23) for cutting a plurality of sets of grain stems produced by the producing device (22). With the conveying apparatus 24 which conveys the grain stem cut | disconnected by the cutting device 23 to the threshing part 30 side, The cutting device 23 cuts several disk-shaped cutting blades which cut | disconnect a grain stem from a root side ( 231 and one disc-shaped auxiliary cutting blade 232 configured to be smaller in diameter than the cutting blade 231 to cut the grain stem from the root side, so as to be rotatable and drive, and the plurality of cutting blades 231 are in the left-right direction. And arrange | positioned on substantially the same straight line, and the auxiliary cutting blade 232 is arrange | positioned in the outward direction of the left and right cutting blade 231 located in the outermost side among the some cutting blade 231.

Thereby, the vibration and noise which generate | occur | produce from the cutting device 23 can be reduced. In addition, even when the cutting width of the cutting device 23 is different depending on the type of cutting unit 20, by changing only the auxiliary cutting blade 232 to have a suitable diameter, the cutting width of the cutting device 23 is adjusted, and cutting The blade 231 can be used as it is. Therefore, since the cutting blade 231 can be shared by the cutting part 20 regardless of the cutting width of the cutting device 23, the structure of the cutting device 23 can be simplified.

In addition, as for the harvesting | reaping part 20 of the combine 1, the cutting device 23 makes the number of cutting blades 231 the same as the tide of the grain stem produced by the apparatus 22, It is configured to provide one cutting blade 231 with respect.

Thereby, the cutting blade 231 can be easily installed, and selection of the necessary auxiliary cutting blade 232 according to the cutting width of the cutting device 23 can also be made easy.

In addition, as for the harvesting | reaping part 20 of the combine 1, the cutting device 23 is one cutting blade 231 about one pair of right and left located in the outermost side of the grain stem produced by the raising device 22. In addition, it is configured to provide an auxiliary cutting blade 232.

Thereby, adjustment of the cutting width of the cutting device 23 by the auxiliary cutting blade 232 can be made easy.

The cutting device 23 of the combine 1 is composed of a plurality of disk-shaped cutting blades 231 for cutting the grain stem from the root side, and a smaller diameter than the cutting blades 231. One disc-shaped auxiliary cutting blade 232 for cutting the grain stem from the base side, and a plurality of cutting blades 231 and an actuator 233 for rotationally driving the auxiliary cutting blade 232, and a plurality of cutting blades. The 231 and the auxiliary cutting blades 232 are arranged to be arranged on substantially the same straight line in the horizontal direction.

Thereby, the vibration and noise which generate | occur | produce from the cutting device 23 can be reduced. Further, the plurality of cutting blades 231 can be rotationally driven at the rotational speed necessary for cutting the grain stem regardless of the operating state of the engine of the combine 1, so that the grain stem can be reliably cut. Therefore, stabilization of grain stem cutting performance can be aimed at.

In addition, the harvesting | reaping part 20 of the combine 1 is comprised so that the cutting device 23 may arrange | position the actuator 233 in the back of the auxiliary cutting blade 232.

Thereby, the actuator 233 can be arrange | positioned to the cutting device 23 compactly by utilizing the space which arises behind the auxiliary cutting blade 232 effectively. An actuator 233 serving as a driving source is provided in close proximity to the cutting blade 231 and the auxiliary cutting blade 232, so that a transmission mechanism for linking these to each other can be easily configured.

The cutting device 23 of the combiner 1 can drive the plurality of cutting blades 231 and the auxiliary cutting blades 232 at a constant rotational speed by the actuator 233, respectively. It is configured to.

Thereby, the grain stem after raising with the some cutting edge 231 and the auxiliary cutting blade 232 can be cut reliably.

Moreover, the harvesting | reaping part 20 of the combine 1 drives the rotation apparatus 24 to the several quenching ring 243 which scrapes the grain stem produced by the raising device 22 to the threshing part 30 side. It is possible to arrange and arrange | position the some squeezed ring 243 on the substantially straight line in the left-right direction, and the cutting device 23 arrange | positions the some cutting edge 231 below each squeezed ring 243, respectively. It is arrange | positioned at the and is comprised so that rotation drive is possible in the same rotation direction as the squeezed ring 243.

Thereby, the grain stem after raising can be cut | disconnected smoothly and conveyed by the cutting blade 231 according to the hardening direction of the hardening wheel 243, ie, the conveying direction of the conveying apparatus 24.

In addition, the harvesting | reaping part 20 of the combine 1 is comprised so that the cutting device 23 can rotationally drive the adjacent cutting blade 231 among the some cutting blade 231 in a different rotation direction.

Thereby, when the rotation direction of the adjacent cutting edge 231 is set according to the hardening direction of the hardening wheel 243 like the present embodiment, the grain stem after raising is made into the cutting blade 231 by the hardening wheel 243. Can be smoothly cut and conveyed in accordance with the quenching direction, that is, the conveying direction of the conveying device 24. In addition, when cutting the grain stem, the disturbance of the root side of a grain stem can be reduced.

Moreover, as for the harvesting | reaping part 20 of the combine 1, the cutting device 23 of the left and right one cutting blade 231 which positions the auxiliary cutting blade 232 in the outermost side among the some cutting blade 231 is carried out. It arrange | positions outward and is comprised so that the auxiliary cutting blade 232 and the auxiliary cutting blade 232 and the adjacent cutting blade 231 can be rotationally driven in the same rotation direction.

Thereby, it becomes possible to cut | disconnect and convey the grain stem after raising smoothly to the quenching direction of the quenching ring 243, ie, the conveyance direction of the conveying apparatus 24, also with the auxiliary cutting blade 232.

In addition, the harvesting | reaping part 20 of the combine 1 is comprised so that the cutting device 23 may switch the actuator 233 to a forward rotation direction or a reverse rotation direction, and to drive.

As a result, when the actuator 233 is driven in one direction, even if the cutting state of the cutting blade 231 worsens and the grain cutting performance is deteriorated, the actuator 233 is driven in the opposite direction to restore the grain cutting performance. Can be.

Moreover, the harvesting | reaping part 20 of the combine 1 has the cutting device 23 equipped with the some disk-shaped cutting edge 231 which cuts a grain stem from a root side so that rotation drive is possible, and a plurality of cutting blades 231 are arranged side by side in substantially the same straight line, and a transmission mechanism for transmitting power from the actuator 233 which is the driving source to the plurality of cutting blades 231 is disposed below these cutting blades 231. The horizontal drive shaft 237 included in the transmission mechanism extends in the horizontal direction, and the plurality of rotation drive shafts 238 included in the transmission mechanism extend upward from the horizontal drive shaft 237. It is comprised so that the cutting blade 231 may be provided in the front-end | tip of each rotation drive shaft 238. As shown in FIG.

Thereby, the vibration and noise which generate | occur | produce from the cutting device 23 can be reduced. In addition, the cutting mechanism 231 and the actuator 233 interlockingly coupled to the transmission mechanism can be simplified, the cutting apparatus can be simplified. In addition, the grain stem after cutting can be prevented from being wound around a part of the power mechanism.

In addition, as for the harvesting | reaping part 20 of the combine 1, the cutting device 23 carries out the drive pipe 115 which covers the vertical drive shaft 236 in the left-right direction over the some cutting edge 231. It is provided so that the drive pipe 115 and the outer dichroic frame 114A may be integrally formed by connecting the ends of the left and right sides of the drive pipe 115 to the mowing frame 110, that is, the outer dichroic frame 114A. do.

Thereby, the cutting structure which supports the cutting device 23 and the cutting device 23 by simplifying the support structure of the several cutting blades 231, furthermore, the cutting device 23 with respect to the cutting frame 110 ( The configuration of the 110 can be simplified. In addition, the strength of the entire harvesting frame 110 can be improved by the drive pipe 115.

In addition, the harvesting | removing part 20 of the combine 1 is provided so that the harvesting frame 110 can be rotated in the up-down direction with respect to a base | substrate, and the cutting device 23 fixes a some cutting edge 231 to a means. It is comprised so that it may be detachably fixed to the rotation drive shaft 238 from below.

This makes it possible to easily detach the cutting blade 231 from the lower side of the cutting device 23 without removing another member from the cutting frame 110 at the time of the upward rotation of the cutting frame 110. Therefore, maintenance and repair can be performed simply.

In addition, the harvesting unit 20 of the combine 1, the conveying device 24 is a scraping wheel 243 to scrape the grain stem produced by the producing device 22 and conveyed to the threshing unit 30 side. It is provided so as to be rotatable, and the plurality of squeezed wheels 243 are arranged in substantially the same straight line in the horizontal direction, so that the raising device 22 side is lowered and the threshing part 30 side is high, that is, the front and rear blast furnace It arrange | positioned by a thought, and the cutting device 23 is equipped with the some disk-shaped cutting edge 231 which cuts a grain stem from a root side so that rotation drive is possible, and the several cutting edge 231 is substantially the same in the left-right direction. Lined up in a straight line, each cutting edge 231 is located below each of the small squeezing rings 243, and the raising device 22 side is lowered and the threshing part 30 side is high, that is, the front and rear blast furnaces. It arrange | positioned in inclined shape and the inclination degree with respect to the ground of the some cutting edge 231 is the ground of the quenching ring 243. For it is configured to gradually set larger than the slope degree.

Thereby, the vibration and noise which generate | occur | produce from the cutting device 23 can be reduced. In addition, the grain stem after cutting can be conveyed to the threshing part 30 side so that the grain stem after cutting may be separated from the cutting blade 231 by the quenching ring 243, and the grain stem after cutting can be prevented from contacting the cutting blade 231. . Therefore, the grain stem conveyance performance can be improved by preventing the occurrence of a problem related to the conveyance such that the buttocks are finely chopped or disturbed by the grain stem contact.

Moreover, the harvesting | reaping part 20 of the combine 1 is equipped with the horizontal transmission pipe 113 extended to the left-right direction at the back of the cutting device 23, and the horizontal transmission pipe 113 is carried out. To the threshing part 30 side rather than the some cutting blade 231, and is arrange | positioned below the extension line when seen from the side to the threshing part 30 side of the some cutting blade 231.

Thereby, the grain stem after cutting is prevented from sticking to the horizontal transmission pipe 113, and it can be conveyed to the threshing part 30 side smoothly by the hardening ring 243.

In addition, as for the harvesting | reaping part 20 of the combine 1, the harvesting frame 110 has the cover body 130 which covers the some cutting edge 231 from the left-right outer direction, out of these cutting blades 231. It is comprised so that it may provide in the part located in the outward direction of each cutting blade 231 of the left and right located in the outermost side.

As a result, the uncut grain stem sticks to a part of the cutting device 23 or the harvesting frame 110 from the outside direction and can prevent the conveyance of the grain stem after cutting. In addition, the cutting blade 231 can be reliably protected from the outside with the cover body 130. In addition, it is possible to prevent the stones and the like that are thrown from the cutting blade 231 from jumping outward of the cutting device 23, thereby preventing the surrounding people or objects from being injured.

In addition, the harvesting | reaping part 20 of the combine 1 is equipped with the several harvesting | fractionation frame 114 which equips the tip part with the dividing tool 21 at the front-end | tip, and the several harvesting | fractionation frame 114 is provided. The cutting device 23 extends from the threshing part 30 side to the dividing tool 21 side below the cutting device 23, and parallelly arranges it at predetermined intervals in the left-right direction, and the cutting device 23 cut | disconnects a grain stem from the root side. A disk-shaped cutting blade 231, and the plurality of cutting blades 231 are positioned on approximately the same straight line in left and right directions so that each cutting blade 231 is located between the minute and second frame 114 when viewed in plan. In addition, it is comprised so that adjacent cutting edge 231 among the several cutting edge 231 may be mutually arrange | positioned at the predetermined space | interval by the left and right width of the dichotomous frame 114 mutually.

Thereby, the vibration and noise which generate | occur | produce from the cutting device 23 can be reduced. Moreover, the grain stem after production is guide | induced to the cutting blade 231 by the dividing edge frame 114, and it can cut | disconnect smoothly with the cutting blade 231. In addition, the cutting blade 231 can be protected from the lower side by the dividing frame 114. Therefore, the grain stem after raising the grass dividing frame 114 can be used as a guide body which guides to the cutting blade 231, and also as a protective body which protects the cutting blade 231, and the structure of the cutting device 23 is simplified. can do. In addition, since the adjacent cutting blades 231 do not need to be overlapped with each other, the cutting blades 231 can be miniaturized.

In addition, as for the harvesting | reaping part 20 of the combine 1, the harvesting frame 110 is the left and right outer side fractional frame 114A located on the outermost side among the plurality of divisional grass frames 114, and the outer side fractional frame 114A. ) And the adjacent inner dichotomy frame 114B are set larger than the interval between the other dichotomy frames 114, and the cutting device 23 is comprised with a smaller diameter than the cutting blade 231, and each is a bottom side. And a disk-shaped auxiliary cutting blade 232 to be rotatably driven, and the auxiliary cutting blade 232 between the cutting edge 231 and the outer dichroic frame 114A and the inner dichroic frame 114B. It is configured to overlap in part.

Thereby, the cutting width of the cutting device 23 can be adjusted by the auxiliary cutting blade 232, and the grain stem after raising also in this adjustment part can be reliably cut | disconnected by the cutting blade 231 and the auxiliary cutting blade 232. Can be. The auxiliary cutting blade 232 can be protected from the lower side by the outer dichroic frame 114A.

In addition, as for the harvesting | reaping part 20 of the combine 1, the harvesting frame 110 guides the grain stem produced by the raising device 22 from the dividing frame 114 side to the vicinity of the center of the cutting blade 231. It is comprised so that the upper guide body 131 may be provided in the dividing frame 114 so that it may extend upward from the front of the cutting blade 231.

This makes it possible to cut by the cutting blade 231 while guiding and supporting the grain stem after raising to the upper guide body 131, and it is possible to improve the grain stem cutting performance. In addition, weeds, dust, and the like stuck on the cutting blade 231 may be scraped off by the upper guide body 131.

In addition, as for the harvesting | reaping part 20 of the combine 1, the harvesting frame 110 guides the grain stem produced by the raising device 22 from the dividing frame 114 side to the vicinity of the center of the cutting blade 231. It is comprised so that the lower guide body 132 may be provided in the grass dividing frame 114 so that it may extend downward from the front of the cutting blade 231.

This makes it possible to cut by the cutting blade 231 while guiding and supporting the grain stem after raising to the lower guide body 132, and it is possible to improve the grain stem cutting performance. In addition, the cutting blade 231 can be protected from the lower side by the lower guide body 132. In addition, by providing the lower guide body 132 in addition to the upper guide body 131, it becomes possible to prevent the grain stem after raising or entering below the cutting blade 231, to guide the grain stem smoothly and effectively Can be cut.

The harvesting portion of the combine of the present invention is useful industrially because it can reduce the vibration and noise generated from the cutting device and simplify the configuration of the cutting device.

One… combine
20... Mowing
21 ... Second hand tools
22... Raising device
23 ... Cutting device
24 ... Conveying device
30 ... Threshing unit
110 ... Mowing frame
113 ... Horizontal electric pipe
114... Minute frame
114A ... Outer secant frame
114B... Inner secant frame
115... Driven pipe
130 ... Cover
131 ... Upper guide
132 ... Lower guide
231 ... Cutting blade
231A... 1st cutting blade
231B... 2nd cutting blade
231C... 3rd cutting blade
231D... 4th cutting blade
232 ... Auxiliary cutting blade
233... Actuator
236... Vertical drive shaft
237... Horizontal drive shaft
238... Rotary drive shaft
243 ... Hardened wheel

Claims (7)

The dichotomy tool which divides a grain stem,
An apparatus for producing a plurality of sets of grain stems divided by the said grass dividing tool,
A cutting device for cutting a plurality of sets of grain stems produced by the raising device,
As a harvesting part of the combine provided with the conveying apparatus which conveys the grain stem cut | disconnected by the said cutting device to the threshing part side,
The cutting apparatus includes:
A plurality of disk-shaped cutting blades for cutting the grain stem from the root side,
It is composed of a smaller diameter than the cutting blade and provided with one disk-shaped auxiliary cutting blade for cutting the grain stem on the base side, so as to enable rotational drive,
Arrange a plurality of the cutting blades arranged on the same straight line in the left and right directions,
The auxiliary cutting blade is disposed in the outward direction of the left and right cutting blades located on the outermost side of the plurality of cutting blades. The method of claim 1,
The cutting apparatus includes:
A harvesting unit of a combine, wherein the number of the cutting blades is the same as the number of the grain stems produced by the producing device, and one cutting blade is provided for one set of grain stems. The method of claim 2,
The cutting apparatus includes:
A harvesting unit for a combine, characterized in that the auxiliary cutting blade is provided in addition to the one cutting blade for one pair of right and left located at the outermost side of the grain stem produced by the producing device. 4. The method according to any one of claims 1 to 3,
A harvesting unit for a combine, characterized in that it comprises an actuator for rotationally driving the plurality of cutting blades and the auxiliary cutting blades. 5. The method of claim 4,
A transmission mechanism for transmitting power from the actuator to a plurality of the cutting blades is disposed below the cutting blades,
While extending the drive shaft included in the transmission mechanism in the left and right directions,
A plurality of rotation drive shafts included in the transmission mechanism are provided extending from the drive shaft upwards;
The cutting part of the combine characterized by providing the said cutting blade in the front-end | tip of each said rotation drive shaft. 4. The method according to any one of claims 1 to 3,
The conveying device,
It is provided with the several squeezed wheels which collect the grain stem produced by the said production apparatus, and convey them to the threshing part side so that rotation drive is possible,
A plurality of the hardened wheels are arranged in the same straight line in the left and right directions, and are arranged in an inclined shape so that the raising device side is lowered and the threshing part side is higher,
The cutting apparatus includes:
A plurality of the cutting blades are arranged in the same straight line in the left and right direction, so that each of the cutting blades is positioned below each of the hardened wheels, and the tilting device side is lowered and the threshing part side is raised in an inclined shape. Place it,
A harvesting unit of a combine, characterized in that the degree of inclination with respect to the ground of the plurality of cutting blades is set more gently than the degree of inclination with respect to the ground of the hardened ring. 4. The method according to any one of claims 1 to 3,
And a mowing frame for supporting the grass dividing tool and each of the above devices,
The mowing frame,
And a plurality of dichotomy frames for providing the dichotomy tools at the distal ends,
A plurality of grass dividing frame is extended from the threshing part side to the said grass dividing tool side below the said cutting device, and arranged in parallel at predetermined intervals in the left-right direction,
The cutting apparatus includes:
A harvesting unit of a combine, characterized in that the neighboring cutting blades of the plurality of cutting blades are arranged at a predetermined interval from each other by the left and right widths of the dichotomous frame.

Images