WO2017038641A1 - Combine - Google Patents

Abstract

This combine is provided with a reaping unit 3 having a cutting blade 15, a threshing unit 9 having a threshing drum 21, and a traveling machine body 1 provided with a travel unit 2 and an engine 7, and supplies culm from the reaping unit 3 to the threshing unit 9, wherein the threshing unit 9 and the engine 7 are provided to the front and rear of the machine body, a grain discharge conveyor 8 is arranged to one side of the threshing unit 9 and the engine 7, and a fan 34 is arranged to the side of the engine 7 so as to generate a selection airflow.

Description

Combine

The invention of the present application relates to a combine equipped with a harvesting unit that harvests uncut cereal grains in a field and a threshing unit that threshs grains of the harvested cereal grains.

Conventionally, a traveling machine body having a traveling part and a driver seat, a cutting part having a cutting blade, a threshing part having a handling drum, a feeder house for supplying a harvested cereal to the threshing part from the cutting part, and an engine for driving each part There is a technique for continuously harvesting and threshing uncut cereal straws in the field (see Patent Documents 1 to 8).

JP-A-57-99118 Japanese Patent Laid-Open No. 11-168942 Japanese Utility Model Publication No. 57-189316 JP 2006-174663 A Japanese Patent No. 3435057 Chinese Utility Model No. 2013336822 Specification Chinese Utility Model No. 20387612 Chinese Utility Model No. 201517675

In harvesting operations in small-area farms, it is desired to combine a lightweight structure that can make the entire body compact while ensuring the harvesting width of cereals. In the prior art, when the handling cylinder is arranged in the left-right direction of the traveling machine body, compared to the structure in which the handling cylinder is arranged in the front-rear direction of the traveling machine body, the front-rear width of the threshing portion can be reduced, but on the flat upper surface side of the traveling machine body. There are structural problems such as the engine or the threshing unit being arranged side by side, the drive structure of each part of the combine being complicated, and the miniaturization of the entire combine not being easily considered. In particular, since the operation unit is provided behind the threshing unit, the length of the threshing unit makes it difficult to check the state of the field in front, and the work efficiency of the mowing operation is reduced. And in the thing which equipped the sorting mechanism of the threshing part with the wind sorting function, depending on the installation position of the fan that generates the sorting wind, the installation position of each part on the traveling machine body is restricted, which hinders the downsizing of the machine body. There is a problem.

In addition, in the structure in which a horizontal handling cylinder is mounted on the front of the traveling machine body and the feeder house is arranged at one side end of the threshing part, the cedar moves from the front to the rear in the feeder house. The handling chamber in which the handling cylinder is installed is formed in the left-right direction, and the cereals move in the left-right direction in the inside of the handling chamber, so that the harvested cereals are likely to stagnate at the feeder house exit or the handling chamber entrance, For example, when the processing amount of the harvested cereals is increased, there is a structural problem that the harvested cereals are easily clogged at the feeder house exit or the handling room entrance. Furthermore, in the structure where the grain that has been shattered by the barrel is transported out of the machine from the dust outlet side away from the handling room entrance where the harvested corn straw is introduced, a large amount of grain that is shattered at the handling room entrance side. Since it is necessary to move the grain to the dust outlet side, the time for the threshed grain to stay inside the threshing part cannot be shortened easily. The problem that it cannot be reduced easily occurs.

Therefore, the present invention seeks to provide an ordinary combine that has been improved by examining these current conditions.

In order to achieve the above object, the combine of the present invention comprises a harvesting part having a grain header, a feeder house, and a cutting blade, a threshing part having a handling cylinder, a traveling machine body provided with a traveling part and an engine, from the harvesting part. In the combine that supplies cereal grains to the threshing unit, the threshing unit and the engine are arranged before and after the fuselage, a grain discharge conveyor is arranged on one side of the threshing unit and the engine, and on the side of the engine. A fan that generates a sorting wind is arranged.

In the above combine, the fan may be an air blowing fan for wind selection, and the air blowing fan may be disposed between the engine and a grain discharge conveyor.

The combine includes a blower fan duct that communicates between the grain selection mechanism of the threshing unit and the blower fan, and the blower fan duct extends in the longitudinal direction of the body at one side of the threshing unit and the engine. It may be a thing.

In the above-described combine, a shield plate body is erected on an upper surface of the traveling machine body between the engine and the blower fan, and the engine and the blower fan are partitioned by the shield plate body. It is good also as what opened the inlet of the ventilation fan between the bodies.

In the above-described combine, an output transmission belt of the engine may be extended between the engine and the shielding plate, and a fan case portion of the blower fan may be attached to the outer surface of the shielding plate.

In the above combine, the engine and the blower fan are disposed within the left and right widths of the threshing portion, and the blower fan is driven from the handling cylinder via the outer side surfaces of the threshing portion and the blower fan formed substantially flush with each other. It may be configured to transmit force.

In the above-described combine, the traveling unit has a pair of left and right crawler belts, the handling drum is arranged in a horizontal posture in the left-right direction, and both end portions of the grain header project outside the left and right crawler belts, respectively. In addition, the grain header is offset in the left-right direction, and the fan is a blower fan that generates a sorting wind in the threshing portion, and may be disposed inside the margin of the grain header. Good.

In the above combine, a grain discharging device for discharging the grain out of the machine from the threshing unit is disposed on a large side of the grain header with respect to the crawler belt, and the blower fan includes the engine and the grain. It is good also as what is arrange | positioned between grain discharge devices.

In the above combine, the dust outlet of the threshing portion is provided on the small side of the grain header relative to the crawler belt, and the front surface of the threshing portion is connected to the feeder house on the side opposite to the dust outlet, The feeder house may be offset in the left-right direction with respect to the grain header.

According to the present invention, by disposing the fan on the side of the engine disposed behind the threshing portion, the blower fan can be compactly installed close to the engine, and the warm air of the engine can be used as the selection air.

According to the present invention, it is possible to install a large-sized wind-selective fan in a compact manner, to easily achieve downsizing of the entire combine, and to simplify the threshing selection structure while maintaining the threshing selection capability of the threshing section. In addition, an engine mounting space, a control unit space, a saddle space, or the like can be easily secured on the rear side of the threshing unit. The entire fuselage can be made compact while ensuring the harvesting width of the cereal.

According to the present invention, the engine, the threshing part, and the blower fan can be arranged close to each other, the mounting structure of the blower fan duct can be simplified, and the grain discharge conveyor and the blower fan duct can be arranged in two upper and lower stages. The grain discharging conveyor and the blower fan duct mounting part can be made compact by effectively utilizing the threshing part and one side part space of the engine.

According to the present invention, hot air around the engine can be supplied to the grain selection mechanism of the threshing part via a blower fan, and the cooling effect of the engine can be easily ensured. The use of the blower fan becomes possible as a heat fan that raises the temperature of the sorting air to be sent, and the sorting air having a temperature higher than the outside air temperature can be sent from the blower fan to the grain sorting mechanism, and the inside of the threshing unit Humidity can be reduced, and the threshing performance or sorting performance of the threshing portion can be easily improved.

According to the present invention, the output transmission belt can be prevented from being deteriorated by hot air around the engine, the durability of the output transmission belt can be improved, and the shielding plate can also be used as a support member for the blower fan. In addition to the shielding plate, it is not necessary to provide a special support member for the blower fan, and the mounting structure of the blower fan can be simplified while reducing the installation cost of the blower fan.

According to the present invention, the handling cylinder is compared with a structure for transmitting the output of the engine from the reaping part to the threshing part while being able to be configured compactly by arranging a blowing fan in the lateral width of the machine body. The working part drive path can be divided and configured on both sides of the handling cylinder with the center as the center, and assembly of the working part drive path or maintenance workability can be easily improved.

According to the present invention, since a sorting fan can be arranged within the cutting width of the grain header, it is possible to reduce the suction of dust or dust in the field to the sorting fan, and maintenance of the fan air path Work can be simplified. Therefore, since the sorting wind can be efficiently flowed into the threshing portion, the wind sorting efficiency can be increased, and not only the threshing efficiency in the threshing portion can be improved, but also the lengthening of the threshing portion can be suppressed.

According to the present invention, the fan and the grain discharging device can be compactly assembled to the outside portion of the machine, and the maintainability of the fan and the grain discharging device can be improved. In addition, it can reduce the occurrence of problems such as uncoiled cereals in the field wrapping around the drive mechanism of the grain discharging device and fan, and the drive mechanism on the side of the threshing part interferes with the uncut cereals in the field and is damaged. Can be prevented. In addition, the fan can be installed compactly close to the engine, and the warm air of the engine can be used as a fan sorter.

According to the present invention, the both ends of the grain header project outside the left and right crawler belts, so that the right and left widths of the threshing part arranged side by side with the grain header can be sufficiently secured, and the threshing accuracy and sorting accuracy in the threshing part The yield loss can be reduced. Moreover, the grain header can be stably supported via the feeder house while a large cutting width can be formed by projecting the other side end of the grain header to the outside of the other side end of the threshing part.

It is a left view of the ordinary combine which shows 1st Embodiment of this invention. It is a top view of the combine. It is a right view of the combine. FIG. 2 is an enlarged explanatory view of FIG. 1. FIG. 3 is an enlarged explanatory view of FIG. 2. FIG. 4 is an enlarged explanatory view of FIG. 3. It is a perspective view of the traveling machine body seen from the left rear. It is a perspective view of the traveling body viewed from the right front. It is left side explanatory drawing of a traveling body. It is right side explanatory drawing of a traveling body. It is plane explanatory drawing of a traveling body. It is a drive system diagram of a normal type combine. It is a perspective view of the traveling body viewed from the right rear side. It is expansion explanatory drawing of FIG. It is the perspective view of the traveling body which looked at the collar receiving part from back. It is the perspective view of the traveling body which looked at the drive transmission part of the engine from back. It is expansion explanatory drawing of FIG. It is a perspective view of the traveling body which shows the cover structure of the drive transmission part of an engine. It is a perspective view of the traveling body which shows a rocking selection part. It is left side explanatory drawing of a cutting part. It is a top perspective view of a cutting part. It is the perspective view which looked at the pick-up reel drive part from the upper surface left side. It is the perspective view which looked at the pick-up reel drive part from the upper surface right side. It is a cross-sectional top view of a take-in reel drive part. It is right side explanatory drawing which shows the drive transmission part of an engine. It is a left view of the ordinary combine which removed the driver's seat. It is a top view of the combine. It is a right view of the combine. FIG. 27 is an enlarged explanatory diagram of FIG. 26. It is expansion explanatory drawing of FIG. It is expansion explanatory drawing of FIG. It is expansion explanatory drawing of FIG. It is a perspective view of the traveling machine body seen from the left rear. It is a front view of a normal type combine. It is expansion explanatory drawing of FIG. It is a cross-sectional top view of a cutting part and a threshing part. It is a perspective view of the threshing part periphery seen from the right front. It is a section front view of a threshing part. It is a cross-sectional right side view of a threshing part. It is a partial cross section top view which shows the structure of a selection air path. FIG. 41 is an enlarged explanatory diagram of FIG. 40. It is a partial cross section perspective view which shows the structure of a selection air path. It is an attachment-and-detachment explanatory view of a driver seat part. It is right side explanatory drawing which attached the driver's seat part.

Hereinafter, an embodiment embodying the present invention will be described based on drawings (FIGS. 1 to 44) applied to a general combine. First, the schematic structure of the ordinary combine will be described with reference to FIGS. 1 to 6 and FIGS. 26 to 31. FIG. In the following description, the left side in the forward direction of the traveling machine body 1 is simply referred to as the left side, and the right side in the forward direction is also simply referred to as the right side.

As shown in FIG. 1 to FIG. 6 and FIG. 26 to FIG. 31, the ordinary combine in the embodiment includes a traveling machine body 1 supported by a pair of left and right crawler belts 2 made of rubber crawlers as a traveling portion. At the front part of the traveling machine body 1, a harvesting part 3 that is taken in while harvesting uncut grain cereal such as rice (or wheat) is mounted by a single-acting lifting hydraulic cylinder 4 so as to be adjustable up and down.

A threshing unit 9 for threshing the harvested cereal meal supplied from the harvesting unit 3 is mounted on the front upper surface of the traveling machine body 1. Inside the threshing unit 9, a handling cylinder 21 as a cereal threshing rotor, which will be described later, and a grain sorting mechanism 10 for sorting threshing are arranged. On the right side of the rear part of the traveling machine body 1, a driving operation unit 5 that is operated by an operator is mounted. An engine 7 as a power source is disposed in the center of the traveling machine body 1. On the rear left side of the traveling machine body 1 (on the left side of the driving operation unit 5), there is arranged a hook receiving unit 6 for taking the grain from the threshing unit 9. The grain in the threshing part 9 is carried out by the grain discharge conveyor 8 toward the bowl receiving part 6.

The cutting unit 3 includes a feeder house 11 that communicates with the handling port supply unit at the front of the threshing unit 9, and a horizontally long bucket-shaped grain header 12 that is connected to the front end of the feeder house 11. A scraping auger 13 (platform auger) is rotatably supported in the grain header 12. A take-up reel 14 with a tine bar is disposed above the front portion of the take-up auger 13. A clipper-shaped cutting blade 15 is disposed in front of the grain header 12. Left and right weed bodies 16 are provided to project from the left and right sides of the front part of the grain header 12. In addition, a supply conveyor 17 is installed in the feeder house 11. The lower surface portion of the feeder house 11 and the front end portion of the traveling machine body 1 are connected via a lifting hydraulic cylinder 4, and the cutting portion 3 moves up and down using a cutting input shaft 18 (feeder house conveyor shaft) described later as a lifting fulcrum. The hydraulic cylinder 4 is moved up and down.

With the above configuration, the tip side of the uncut grain culm between the left and right weed bodies 16 is scraped by the scraping reel 14, and the heel side of the uncut grain culm is cut by the cutting blade 15, and the rotation of the scraping auger 13. By driving, the harvested cereals are collected near the entrance of the feeder house 11 near the center of the left and right width of the grain header 12. The entire amount of the harvested cereal grains in the grain header 12 is conveyed by the supply conveyor 17 in the feeder house 11 and is put into the handling chamber 22 from the handling port supply plate 9a of the threshing unit 9. 1 and FIG. 26, a heel cutting blade 19 that cuts the heel of the grain culm after cutting the tip side is provided, and the heel cutting blade 19 is attached to and detached from the front of the traveling machine body 1. The heel cutting blade 19 is disposed so as to be movable up and down behind the grain header 12.

Further, as shown in FIGS. 34 to 36, the left and right width W2 of the grain header 12 is wider than the crawler belt width W3 by the left and right crawler belts 2. That is, the both ends of the grain header 12 project outside the left and right crawler belts 2, so that the left and right width W1 of the threshing part 9 provided side by side with the grain header 12 can be sufficiently secured, and the threshing accuracy in the threshing part 9 In addition, the sorting accuracy can be improved and the yield loss can be reduced. Moreover, while the left end part of the grain header 12 projects outside the left side (feeder house 11 side) end part of the threshing part 9, the cutting width of the grain header 12 by the cutting blade 15 can be increased. The grain header 12 can be stably supported through the feeder house 11.

The both ends of the grain header 12 project outside the left and right crawler belts 2, and the grain header 12 is offset in the left-right direction. That is, the left side allowance width W2L of the grain header 12 with respect to the crawler belt 2 is larger than the right side allowance width W2R of the grain header 12 with respect to the crawler belt 2. Then, the feeder house 11 is disposed in front of the left crawler belt 2 so that the feeder house 11 entrance is connected to the center of the left and right width of the grain header 12. Therefore, the grain header 12 can be stably supported via the feeder house 11 while the cutting width W2 of the grain header 12 by the cutting blade 15 is formed sufficiently larger than the crawler belt width W3. At this time, the feeder house 11 is arranged on the left side of the center of the grain header 12. Moreover, the left-right width W1 of the threshing portion 9 connected to the feeder house 11 outlet is slightly narrower than the crawler belt width W3, and the left-right width W1 of the threshing portion 9 can be sufficiently secured.

Also, as shown in FIGS. 4 to 6 and FIGS. 29 to 31, a handling cylinder 21 is rotatably provided in the handling chamber 22 of the threshing unit 9. A handling cylinder 21 is pivotally supported on a handling cylinder shaft 20 extended in the left-right direction of the traveling machine body 1. On the lower side of the handling cylinder 21, a receiving net 24 for allowing the grains to leak is stretched. In addition, a handling port supply plate 9 a that communicates with the cereal feed end side of the supply conveyor 17 is formed in the lower left portion of the handling chamber 22, while a dust outlet 23 is formed in the lower right portion of the handling chamber 22. . In other words, a horizontal handling cylinder 21 is mounted on the front of the traveling machine body 1 in the left-right direction, and the feeder house 11 is disposed on the left side end (one side end) of the threshing unit 9 so as to be long in the front-rear direction. It is comprised so that the moving direction of the harvested cereal meal in the threshing part 9 of the horizontal feeder attitude | position 11 and the horizontal placement posture may be changed to an orthogonal direction.

As shown in FIGS. 34 to 39, the handling cylinder 21 has four square pipe-made cylinder frames 21a arranged on the same circumference and a plurality of cylinders 21 standing on the outer peripheral surface of the cylinder frame 21a at equal intervals. And a dust exhaust blade plate 21c standing on the outer peripheral surface of the right end portion of the trunk frame 21a facing the dust exhaust port 23. A threshing right end surface cover 316 covering the right side of the handling chamber 22 includes a dust discharge guide portion 23b whose lower end is bent to the right side, and forms a dust discharge port 23 below the dust discharge guide portion 23b.

The dust discharge guide portion 23b has a shape protruding toward the right side as its bending start position increases toward the front. When the swarf after threshing is conveyed to the right side of the barrel 21, it is guided toward the dust outlet 23 by the rotation of the dust exhaust blade plate 21 c. At this time, since the dust discharge guide portion 23b has the above-described shape, the front of the dust discharge port 23 can be greatly opened in accordance with the rotation direction of the dust discharge blade plate 21c. Since it discharges | smooths smoothly, the residence of the sawdust in the handling chamber 22 can be suppressed.

With the above-described configuration, the harvested cereal mash introduced from the handling port supply plate 9 a by the supply conveyor 17 is conveyed from the left side to the right side of the traveling machine body 1 by the rotation of the handling cylinder 21, while the handling cylinder 21 and the receiving net 24. And kneaded in between. The threshing of grains or the like smaller than the mesh of the receiving net 24 leaks from the receiving net 24. Dust and the like that do not leak from the receiving net 24 are discharged from the dust outlet 23 on the lower right side of the handling chamber 22 to the field outside the right crawler belt 2 by the conveying action of the handling cylinder 21.

Furthermore, as shown in FIG. 34 to FIG. 39, the grain sorting mechanism 10 disposed below the handling cylinder 21 is provided with a rocking sorter 26 for specific gravity sorting. The swing sorter 26 includes a flow grain plate 27 disposed below the handling port supply plate 9a, a grain leakage porous plate 28 disposed below the receiving net 24, and the right end of the porous plate 28. It consists of the Glen sieve 29 etc. arrange | positioned under the part. Further, a swing shaft type swing drive shaft 31 that supports the right end portion of the swing sorting plate 26 that can be moved up and down and left and right by a swing guide body (not shown) is provided. The moving sorter 26 is configured to reciprocate up and down and left and right. A dust discharge port 23 is formed on the upper surface side of the dust discharge flow lower plate 23a provided at the right end of the swing sorter 26, and the dust discharge port 23 of the right opening of the handling chamber 22 is formed through the upper surface of the dust discharge flow lower plate 23a. Alternatively, the waste at the right end of the rocking sorter 26 is configured to be discharged to the field scene outside the two right crawler tracks.

As shown in FIGS. 34 to 39, a dust outlet 23 is provided at one side end (right end) of the threshing portion 9, and a feeder house 11 is provided at the other end (left end) of the threshing portion 9. Has been placed. The dust outlet 23 is opened obliquely downward toward the outer side (right side) of the crawler belt 2 so as to discharge the sawdust to the outer side (right side) of the right crawler belt 2. The dust discharge port 23 is disposed between a dust discharge guide portion 23b having a lower end of the threshing right end surface cover 316 bent to the right side and a dust discharge lower plate body 23a inclined to the lower right from the right end portion of the swing sorter 26. Is provided. That is, the dust at the right opening of the chamber 22 is discharged from the machine toward the lower right side along the dust guide 23b at the dust outlet 23, and the dust at the right end of the swing sorter 26 is removed. It is discharged out of the machine toward the lower right side along the dust flow lower plate 23a. Thereby, the sawdust in the threshing part 9 will be discharged to the farm scene on the outer side of the two right crawler belts.

By opening the dust outlet 23 obliquely downward, the swarf is discharged to the field scene on the outer side of the two right crawlers and on the already cut side, so that the discharged swarf covers the uncut grain culm. There is nothing. Moreover, it is not necessary to project the threshing part 9 outside the right crawler belt 2, and the operator can grasp the right end position of the reaping part 3 disposed in front of the threshing part 9. Therefore, since the operator can drive the traveling machine body 1 while accurately grasping the position of the uncut grain culm, the efficiency of the cutting operation can be improved. Moreover, the dust discharge port 23 can reduce the discharge | emission of the sawdust to the rear of the threshing part 9 by setting it as the structure which expands an opening area toward the front. Thereby, it is possible to prevent dust from flowing into the rear of the threshing unit 9 and to reduce the discomfort of the operator who operates the operation behind the threshing unit 9. Moreover, since the accumulation of dust on each drive mechanism arranged behind the threshing unit 9 can be reduced, not only the failure frequency of the machine can be suppressed, but also the number of maintenance can be reduced.

A handling cylinder drive unit (such as a threshing drive chain 75) that transmits power from the engine 7 to the handling cylinder 21 is disposed above the dust collection opening 23, while the grain sorting mechanism 10 is disposed below the dust collection opening 23. A sorting mechanism drive unit (such as a delivery drive chain 78 and a swing input chain 136) that transmits power from the engine 7 is disposed. The handling cylinder driving unit configured by the threshing drive chain 75 or the like is installed in the handling cylinder drive cover body 191 installed on the right side of the threshing right end surface cover 316 and has a front and rear low posture above the dust discharge guide unit 23b. Installed. The sorting mechanism drive unit including the delivery drive chain 78, the swing input chain 136, and the like is installed in the sorting drive cover body 192 installed on the left side of the handling cylinder drive cover body 191, and the grain sorting mechanism 10 and It is installed on the right side of the grain take-out conveyor 36 so as to be in a high posture at the front and rear after the lower plate 23a.

One end of each of the threshing drive chain 75 and the delivery drive chain 78 is connected to the counter shaft 72 with the counter shaft 72 disposed behind the threshing unit 9 as an input side. The other end of the threshing drive chain 75 is connected to the handling cylinder shaft 20 disposed on the upper front side with respect to the counter shaft 72, while the other end of the delivery drive chain 78 is on the lower front side with respect to the counter shaft 72. Are connected to a grain take-out conveyor shaft 36a. Further, with the grain take-out conveyor shaft 36a as the input side, one end of the swing input chain 136 is connected to the grain take-out conveyor shaft 36a, and the other end of the swing input chain 136 is below the counter shaft 72 and is the grain. The swing input shaft 137 is connected to the rear of the sorting mechanism 10.

Then, the handling cylinder driving unit is covered with the dust discharging guide portion 23b above the dust discharging port 23, while the sorting mechanism driving unit is covered with the dust discharging flow lower plate 23a below the dust discharging port 23. Therefore, not only can the amount of dust entering the handling cylinder driving unit and the sorting mechanism driving unit be suppressed, the frequency of machine failures can be suppressed, but also the number of maintenance can be reduced. In addition, by arranging the handling cylinder driving unit and the sorting mechanism driving unit up and down, the power from the engine 7 can be efficiently used and the grain from the engine 7 without interfering with the discharge of the sawdust at the dust outlet 23. It can be transmitted to the sorting mechanism 10.

In addition, as shown in FIG. 19, the grain sorting mechanism 10 disposed below the handling cylinder 21 is provided with a rocking sorter 26 for specific gravity sorting. The swing sorter 26 includes a flow grain plate 27 disposed below the handling port supply plate 9a, a grain leakage porous plate 28 disposed below the receiving net 24, and the right end of the porous plate 28. It consists of the Glen sieve 29 etc. arrange | positioned under the part. In addition, it includes a pair of left-side swing guide bodies 30a that support the left end of the swing sorter 26 and a pair of right-side swing guide bodies 30b that support the right end of the swing sorter 26. The swing guide plate 26 is configured to be movable up and down and left and right by the moving guide bodies 30a and 30b, and is provided with a crank type swing drive shaft 31 that supports the right end of the swing sort plate 26. The drive shaft 31 is configured to reciprocate the swing sorter 26 in the left-right direction. A dust discharge port 23 is formed on the upper surface side of the dust discharge flow lower plate 23a provided at the right end of the swing sorter 26, and the dust discharge port 23 of the right opening of the handling chamber 22 is formed through the upper surface of the dust discharge flow lower plate 23a. Alternatively, the sawdust is discharged from the right end portion of the swing sorter 26 to the outside of the machine.

Also, the grain sorting mechanism 10 includes a blower fan 34 and a blower fan duct 35 that supply sorting wind to the swing sorter 26 and a grain takeout conveyor 36 that is placed under the swing sorter 26. On the left side of the threshing unit 9, the grain discharge conveyor 8 is extended between the threshing unit 9 and the bowl receiving unit 6 in a front / rear / high posture. An exhaust port 35a of the blower fan duct 35 is opened on the lower surface side of the left end portion of the swing sorter 26, and the sorter air of the blower fan 34 is supplied from the left side of the swing sorter 26 to the right side. The upper and lower airflow direction guide plates 35b and 35c are provided so as to face the exhaust port 35a. An upper wind direction guide plate body 35b is arranged below the flow grain flat plate 27, and the upper wind side guide plate body 35b uniformly disperses the selection wind from the air outlet 35a over the entire lower surface side of the flow grain flat plate body 27. The lower wind direction guide plate 35c is arranged below the perforated plate 28 for grain leakage, and is sorted from the lower surface side to the upper surface side of the porous plate body 28 by the guidance of the lower wind direction guide plate 35c. It is configured to move the wind. On the other hand, the feed start end side of the front end portion of the grain discharge conveyor 8 is connected to the feed end side of the left end portion of the grain take-out conveyor 36. The threshing that has been threshed by the handling cylinder 21 and leaked from the receiving net 24 is sorted into heavy grains and light swarf by the specific gravity sorting action of the swing sorter 26 and the wind sorting action of the blower fan 34. It is configured to be.

The heavy grain that has fallen downward from the leaking perforated plate 28 of the swing sorter 26 is taken out from the grain take-out conveyor 36 to the grain discharge conveyor 8 and collected in the hull bag 37 of the eaves receiving part 6. That is, the saddle receiving portion 6 is connected to the right rear end portion of the traveling machine body 1 via the base support frame 38a, and the saddle bracket attached to the right rear end portion of the traveling body 1 via the arm support frame 39a. An arm body 39 is provided. Also, the upper end side of the arm support frame 39a is supported at the feed end side of the rear end portion of the grain discharge conveyor 8, and the straw input port 8a is provided at the feed end side of the rear end portion of the grain discharge conveyor 8. The straw bag 37 is suspended from the receiving arm body 39, the opening of the straw bag 37 is attached to the straw filling port 8a, and the grains discharged from the straw filling port 8a are filled inside the straw bag 37. On the other hand, light dust etc. on the upper surface side of the rocking sorter 26 moves toward the upper surface of the dust lowering plate 23a on the lower surface side of the dust outlet 23 and is discharged from the dust outlet 23 on the right side of the threshing unit 9 to the field. Is done.

The both ends of the grain header 12 project outside the left and right crawler belts 2, and the grain header 12 is offset in the left-right direction. A blower fan 34 that generates a sorting wind in the threshing unit 9 is disposed at a position that is inside the allowance of the grain header 12 and outside the grain sorting mechanism 10 in the threshing unit 9. Since the blower fan 34 can be disposed within the cutting width W2 of the grain header 12, it is possible to reduce the suction of dust or dust in the field to the blower fan 34, and to perform maintenance work of the blower fan 34 air passage and the like. It can be simplified. Therefore, since the sorting wind can be efficiently flowed into the threshing section 9, the wind sorting efficiency can be increased, and not only the threshing efficiency in the threshing section 9 can be improved, but also the lengthening of the threshing section 9 can be suppressed.

A grain discharge conveyor (grain discharge device) 8 that discharges grains from the threshing unit 9 to the outside of the machine is arranged on the side (left side) where the grain header 12 with respect to the crawler belt 2 is large. A blower fan 34 is disposed between the engine 7 and the grain discharge conveyor 8. The blower fan 34 and the grain discharge conveyor 8 can be compactly assembled to the outside (left side) of the machine, and the maintainability of the blower fan 34 or the grain discharge conveyor 8 can be improved. Further, it is possible to reduce the occurrence of problems such as the uncut cereals in the field wrapping around the drive mechanism of the grain discharge conveyor 8 and the cutting unit 3, and the drive mechanism on the side of the threshing unit 9 is attached to the uncut cereals in the field. It is possible to prevent damage due to interference. Further, the blower fan 34 can be installed in a compact manner close to the engine 7, and the warm air of the engine 7 can be used as the sorting air for the blower fan 34.

A dust outlet 23 of the threshing portion 9 is provided on the side (right side) where the grain header 12 with respect to the crawler belt 2 is small, and the front surface of the threshing portion 9 is connected to the feeder house 11 on the side opposite to the dust outlet 23. The feeder house 11 is offset from the grain header 12 in the left-right direction. The blower fan duct 35 for flowing the selected wind by the blower fan 34 and the fan drive unit (fan drive chain 84 and the like) are vertically distributed to a position between the threshing unit 9 and the grain discharge conveyor 8 in a front view. Is provided. The blower fan 34 is a compressed air fan that sends the sorting air to the threshing unit 9. A fan drive cover body 195 fixed to the left side of the threshing portion 9 and the left side of the fan case portion 34a has a fan drive chain 84 provided therein.

The blower fan 34 can be compactly installed close to the engine 7, and the warm air of the engine 7 can be used as the sorting air for the blower fan 34. Grains that leak to the lower side of the receiving net 24 can be efficiently carried out while blowing off swarf or dust toward the dust outlet 23 side. In addition, the fan drive unit by the fan drive chain 84 and the like and the blower fan duct 35 can be installed compactly on the left side of the traveling machine body 1 together with the grain discharge conveyor 8, but each part can be accessed from the left side of the machine body, Maintainability can be improved.

An upper wind direction guide plate body 35b is arranged below the flow grain flat plate 27, and the upper wind side guide plate body 35b uniformly disperses the selection wind from the air outlet 35a over the entire lower surface side of the flow grain flat plate body 27. The lower wind direction guide plate 35c is arranged below the perforated plate 28 for grain leakage, and is discharged from the lower surface side of the porous plate 28 toward the upper surface by the guidance of the lower wind direction guide plate 35c. The screened air from the air outlet 35 a is moved, and the threshing that has been threshed by the handling cylinder 21 and leaked from the receiving net 24 is caused by the specific gravity sorting action of the swing sorter 26 and the wind sorting action of the blower fan 34. It is configured to be sorted into heavy grains and light shavings.

A plurality of duct internal wind direction guide plates 35 d are provided side by side toward the air exhaust port 35 a of the blower fan duct 35. The duct internal wind direction guide plate body 35d is erected from the bottom surface along the longitudinal direction of the blower fan duct 35, and has a shape bent in an L shape in plan view. In the blower fan duct 35, the sorting wind flowing along the moving direction of the traveling machine body 1 is bent in a direction perpendicular to the moving direction of the traveling machine body 1 by the duct internal wind direction guide plate body 35d, and the threshing unit 9 Inflow.

The duct inner wind direction guide plate body 35d is configured to extend toward the rear as the height of the guide plate body 35d located at the rear of the air outlet 35a decreases. Therefore, the air flow distribution at the air outlet 35a is made uniform by the air flow direction guide plate 35d in the duct, and the sorted air from the air outlet 35a flows downward. A plurality of upper-side wind direction guide plates 35b are juxtaposed in the front-rear direction below the flown slab plate 27 between the duct internal wind direction guide plates 35d arranged side by side at the exhaust port 35a. The upper-side wind direction guide plate 35b is inclined along the left and right direction by being skewed from the front to the rear along the selected wind flow. Therefore, since the sorting wind that has flowed below the cereal plate 27 is further uniformed by the upper wind direction guide plate 35b and guided toward the lower side of the receiving net 24, the swaying sorter Since the unevenness of the sorting wind flow in the interior 26 is reduced, the sorting effect by the wind sorting action can be improved.

On the other hand, as shown in FIG. 4, FIG. 5, FIG. 13, FIG. 34 to FIG. 42, etc., the grain discharge conveyor has a front and rear high posture between the threshing portion 9 and the catching portion 6 on the left side of the threshing portion 9. 8 is extended. The feed start end side of the front end portion of the grain discharge conveyor 8 is connected to the feed end side of the left end portion of the grain take-out conveyor 36. A grain takeout conveyor 36 is installed in the end face V-shaped grain takeout bowl 25 at the bottom of the threshing section 9. Due to the sorting action of the swing sorter 26 and the blower fan 34, the grains that have leaked from the perforated plate 28 and the grain sieve 29 to the grain takeout bowl 25 are fed from the left end of the grain takeout conveyor 36 to the grain discharge conveyor 8. It is transferred to the front end, is transferred from the koji insertion port 8 a at the rear end of the grain discharge conveyor 8 to the koji receiving portion 6, and is collected in the koji bag 37 on the koji receiving portion 6.

That is, the saddle receiving portion 6 is connected to the right rear end portion of the traveling machine body 1 via the base support frame 38a, and the saddle bracket attached to the right rear end portion of the traveling body 1 via the arm support frame 39a. An arm body 39 is provided. Also, the upper end side of the arm support frame 39a is supported at the feed end side of the rear end portion of the grain discharge conveyor 8, and the straw input port 8a is provided at the feed end side of the rear end portion of the grain discharge conveyor 8. The straw bag 37 is suspended from the receiving arm body 39, the opening of the straw bag 37 is attached to the straw filling port 8a, and the grains discharged from the straw filling port 8a are filled inside the straw bag 37. On the other hand, light dust etc. on the upper surface side of the rocking sorter 26 moves toward the upper surface of the dust lowering plate 23a on the lower surface side of the dust outlet 23 and is discharged from the dust outlet 23 on the right side of the threshing unit 9 to the field. Is done.

A grain discharge conveyor (grain discharge device) 8 is arranged on the left side of the threshing unit 9, receives the grain from the threshing unit 9, and conveys the grain along the moving direction of the traveling machine body 1. Further, a cutting drive unit (such as a cutting input chain 87 and a header drive chain 90) that transmits power from the engine 7 to the cutting unit 3 is provided on the left side of the threshing unit 9. Both end portions of the grain header 12 project outside the left and right crawler belts 2, and the left end portion of the grain header 12 projects outside the left end portion of the threshing portion 9. The cutting input cover body 193 installed on the left side of the threshing section 9 has a cutting input chain 87 installed therein, and the header driving cover body 194 installed on the left side of the feeder house 11 has a header driving chain 90 installed therein.

The grain discharge conveyor 8 is disposed at a position between the left end of the threshing portion 9 and the left end of the grain header 12 in a front view. Moreover, the cutting drive part by the cutting input chain 87, the header drive chain 90, etc. is arrange | positioned in the position between the grain discharge conveyor 8 and the threshing part 9 by planar view. Therefore, it is possible to reduce the occurrence of problems such as the uncut grain culm in the field wrapping around the drive mechanism such as the reaping drive unit and the grain discharge conveyor 8, and the drive mechanism on the side of the threshing unit 9 is attached to the uncut grain culm in the field. It can prevent damage from interference. The cutting drive unit and the grain discharge conveyor 8 can be compactly assembled to the outside of the machine, and the maintainability of the cutting drive unit and the grain discharge conveyor 8 can be improved. It is not necessary to move a large amount of grains that are threshed at the entrance side of the handling chamber 22 to the dust outlet 23 side, and the time during which the shed grains stay in the threshing section 9 can be easily shortened. It is possible to easily reduce the amount of swarf mixed in the grain taken out.

On the other hand, as shown in FIGS. 4 to 6 and FIGS. 29 to 31, a driving column 41 and a driving seat 42 on which an operator sits are arranged in the driving operation unit 5. The steering column 41 is used to drive or stop the left and right side clutch levers 43 and 44 that change the course of the traveling machine body 1, the traveling speed change lever 45 that switches the traveling speed of the traveling machine body 1, and the reaping part 3 or the threshing part 9. A working clutch lever 46, a cutting lift lever 47 for lifting and lowering the cutting unit 3, and a parking brake lever 48 are arranged. In addition, a walking handle 49 protrudes rearward from the rear side of the steering column 41, and the accelerator lever 40 is attached to the left grip portion of the walking handle 49. The work clutch lever 46 and the cutting lift lever 47, which are less frequently operated in the harvesting operation, are arranged at the upper surface height of the steering column 41 or the lower left position or the rear position thereof. Incorrect operation of the lever 47 can be reduced. The side clutch levers 43 and 44 and the traveling speed change lever 45, which are frequently operated in the harvesting operation, are arranged at a high position on the upper surface of the steering column 41, and can improve driving operability such as a traveling speed change or a course change. Side clutch levers 43 and 44 and travel shift lever 45 The parking brake lever 48 which requires emergency operation from the side of the machine body is disposed on the outer surface of the right side of the control column 41 and requires a step board and the like. The side clutch levers 43 and 44 disposed on the upper right side of the control column 41 and the parking brake lever 48 are provided on the control column 41 in the moving operation (operation to enter / exit into the field or load / unload to the transport truck bed). Emergency operation can be performed from the field outside the right machine.

A driver's seat 42 on which an operator sits is detachably disposed behind the control column 41. In a walking operation in which the operator does not sit on the driver's seat 42, the operator walks and moves in the field while holding the walking handle 49, and executes the harvesting operation. The work clutch lever 46 is disposed outside the walking handle 49, while the cutting lift lever 47 is disposed inside the walking handle 49, so that the operator can grasp the walking handle 49 during the harvesting operation, The work clutch lever 46 and the cutting lift lever 47 can be easily operated, and erroneous operation of the work clutch lever 46 and the cutting lift lever 47 can be reduced. The side clutch levers 43 and 44 and the traveling speed change lever 45, which are frequently operated in the harvesting operation, are arranged at a high position on the upper surface of the steering column 41, and can improve driving operability such as a traveling speed change or a course change.

On the other hand, as shown in FIGS. 7 to 10, left and right front support legs 32 and rear support legs 33 project downward from the lower surface side of the traveling machine body 1, and the left and right support leg bodies 32, 33 are protruded downward from the traveling machine body 1. The left and right track frames 50 are arranged via the. The track frame 50 includes a drive sprocket 51 that transmits the power of the engine 7 to the crawler belt 2, a tension roller 52 via a tension mechanism 53 that maintains the tension of the crawler belt 2, and a plurality of members that hold the grounded side of the crawler belt 2 in a grounded state. The track roller 54 is provided. The front side of the crawler belt 2 is supported by the tension roller 52, the rear side of the crawler belt 2 is supported by the drive sprocket 51, the ground side of the crawler belt 2 is supported in a horizontal posture by the track roller 54, and the non-ground side of the crawler belt 2 is It is configured to support a low rear and high posture.

Next, the drive structure of the combine will be described with reference to FIGS. As shown in FIG. 12, the transmission case 63 is provided with a hydraulic continuously variable transmission 64 for traveling speed change that incorporates a traveling hydraulic pump and a hydraulic motor. The engine 7 is mounted on the center upper surface of the traveling machine body 1, and a mission case 63 is disposed at the rear of the traveling machine body 1 behind the engine 7. Further, a travel drive pulley 69 on the output shaft 65 projecting leftward from the engine 7 and a speed change input pulley 70 on the input shaft 66 projecting leftward from the mission case 63 are connected to the front travel output belt 67a and the rear. It connects via the side travel output belt 67b. Further, the front traveling output belt 67a is tensioned by a tension roller type traveling clutch 68, and power is transmitted from the engine 7 to the transmission case 63 to drive the left and right crawler belts 2. As shown in FIGS. 5, 9, and 17, the input pulley fan 70a is fixed to the outer surface of the left side of the transmission input pulley 70, and the hydraulic continuously variable transmission 64 is cooled by the input pulley fan 70a. is doing.

In addition, the intermediate frame 131 is erected on the traveling machine body 1 in a backward inclined posture, and the left intermediate pulley 133 and the right intermediate pulley 134 can be integrally rotated on the upper end side of the intermediate frame 131 via the intermediate shaft 132. The front travel output belt 67a is wound around the shaft via the travel clutch 68 between the travel drive pulley 69 and the left intermediate pulley 133, and the rear travel output belt 67b is interposed between the right intermediate pulley 134 and the transmission input pulley 70. Is running around. The transmission case 63 on the rear side of the engine 7 is arranged on the right side of the machine body, and the mounting position of the transmission input pulley 70 is formed near the center of the traveling machine body 1 with respect to the mounting position of the traveling drive pulley 69. The input pulley fan 70a supported by the transmission input pulley 70 on the rear end side of the rear traveling output belt 67b is disposed on the rear side of the front traveling output belt 67a. A transmission case 63, in which a hydraulic continuously variable transmission 64 is integrally mounted and fixed, can be installed between the left and right crawler tracks 2 behind the wide left and right engine 7, and the heavy-duty engine 7 and the transmission case 63 are connected to the left and right sides of the body. Supporting the central part, the weight balance in the left-right direction of the aircraft is well formed.

As shown in FIGS. 7 to 12, a counter shaft 72 for driving the mowing unit 3 and the handling cylinder 21 is provided. A counter shaft 72 is rotatably provided on the upper surface side of the traveling machine body 1 via the left bearing body 71a and the right bearing body 71b. A threshing drive pulley 57 on the output shaft 65 protruding leftward from the engine 7 and a counter shaft pulley 58 at the left end of the counter shaft 72 are connected via a threshing drive belt 59. The threshing drive belt 59 is tensioned by the tension roller type work clutch 60, and power is transmitted from the engine 7 to the counter shaft 72. A counter shaft sprocket 73 and a grain delivery sprocket 76 are pivotally supported at the right end of the counter shaft 72. A countershaft sprocket 73 and a handlebar shaft input sprocket 74 at the right end of the handlebar shaft 20 are connected by a threshing drive chain 75, and the handlebar cylinder 21 is driven via the countershaft 72. In addition, the grain delivery sprocket 76 and the delivery input sprocket 77 at the right end of the grain takeout conveyor 36 are connected by a delivery drive chain 78, and the grain takeout conveyor 36 is driven via the counter shaft 72. is doing.

In addition, the feeding start end side of the grain discharge conveyor 8 is connected to the left end portion of the grain extraction conveyor 36 via a bevel gear mechanism 79 so that the grain extraction conveyor 36 and the grain discharge conveyor 8 are driven in conjunction with each other. It is composed. Further, a swing input sprocket 135 is provided at the right end of the grain extraction conveyor shaft 36a of the grain extraction conveyor 36, and the swing input sprocket 135 is driven to swing on the swing input shaft 137 via the swing input chain 136. The sprocket 80 is connected, the swing drive shaft 31 of the swing sorter 26 is connected to the swing input shaft 137 via the bevel gear mechanism 81, and the swing sorter 26 is moved up, down, left and right via the grain take-out conveyor shaft 36a. It is configured to swing and drive.

On the other hand, the fan drive sprocket 82 on the left end portion of the barrel 20 and the blower fan sprocket 83 on the shaft of the blower fan 34 are connected by a fan drive chain 84 to drive the barrel 21 and the blower fan 34 in conjunction with each other. It is configured as follows. By operating the work clutch 60 of the work clutch lever 46 arranged on the left side of the control column 41, each part of the threshing part 9 (the handling cylinder 21, each conveyor 8, 36, the swing sorter 26, and the blower fan 34) is fixed. Driving at high speed.

As shown in FIG. 1 to FIG. 12 and FIG. 26 to FIG. 31, a traveling machine body 1 provided with a cutting part 3 having a cutting blade 15, a threshing part 9 having a handling cylinder 21, a crawler belt 2 and an engine 7 as traveling parts. In the combine that supplies cereals from the reaping unit 3 to the threshing unit 9, the counter shaft 72 is arranged on the upper surface of the traveling machine 1 between the engine 7 and the threshing unit 9, and the threshing driving pulley 57 as an output pulley of the engine 7 is provided. The counter shaft 72 is connected to the threshing drive belt 59, and the driving force of the engine 7 is transmitted to the cutting unit 3 and the threshing unit 9 via the counter shaft 72. Therefore, by simplifying the drive structure of each part of the combine, it is possible to easily achieve downsizing of the entire combine, and at a low cost, a compact combine with a lightweight structure that can make the entire body compact while ensuring the harvesting width of the cereal it can.

As shown in FIGS. 4 to 12 and FIGS. 29 to 31, the handling cylinder 21 is pivotally supported in the left-right direction, and the engine 7 is installed on the upper surface of the traveling machine body 1 behind the threshing portion 9, The counter shaft 72 is horizontally mounted on the traveling machine 1 through the left bearing body 71a and the right bearing body 71b, and the threshing drive pulley 57 (output pulley) on the left side of the engine 7 is driven to thresh the left side of the counter shaft 72. The belt 59 is connected to the belt, and the right side of the barrel 20 is connected to the right side of the counter shaft 72 by a threshing drive chain 75. Therefore, compared with the structure etc. which transmit the output of the engine 7 from the cutting part 3 to the threshing part 9, a working part drive path can be easily comprised centering on the handling cylinder axis | shaft 20, and the assembly | attachment or maintenance of the said working part drive path Workability can be improved.

As shown in FIGS. 4 to 12 and 29 to 31, the bottom of the threshing unit 9 is provided with the swing sorter 26 and the grain takeout conveyor 36, and the right side of the grain takeout conveyor 36 axis is on the right side of the counter shaft 72. The chain is connected by the feed drive chain 78, the right side of the grain take-out conveyor 36 is connected by the swing input chain 136 to the swing drive shaft 31 of the swing sorter 26, and the left side of the engine 7 and the threshing unit 9 is left. The left end of the grain takeout conveyor 36 axis is connected to the lower end of the grain discharge conveyor 8 axis. Therefore, while the drive structure around the threshing unit 9 can be simplified, the sorting function of the swing sorter 26 or the delivery function of the grain takeout conveyor 36 or the grain discharge conveyor 8 can be properly maintained.

As shown in FIGS. 4 to 12 and FIGS. 29 to 31, the handling cylinder 21 is disposed on the upper surface side of the swing sorting plate 26 in the left-right direction, and the grain take-out conveyor 36 is placed on the lower surface side of the swing sorting plate 26. It is a structure arranged in the direction, the rocking sorter 26 installation surface is formed at substantially the same height with respect to the engine 7 installation surface, and the grain discharge conveyor 8 on the left side of the threshing portion 9 extended backward. Between the engine 7 and the engine 7, a blower fan 34 for supplying the sorting air to the swing sorting board 26 is disposed. Therefore, the threshing part 9 can be arranged in front of the engine 7 while suppressing the supporting height of the threshing part 9. The swing sorter 26 and the blower fan 34 can be arranged in a compact manner. While the amount of sorting air supplied from the blower fan 34 toward the swing sorter 26 can be easily secured, the blower fan duct 35 for feeding the sorter air from the blower fan 34 toward the swing sorter 26, etc. Can be arranged compactly.

Further, as shown in FIGS. 1, 9 to 12, 20 to 24, and 26, a handling shaft output sprocket 85 at the left end of the handling shaft 20 and a cutting input shaft that is a lifting fulcrum of the cutting unit 3. 18 The cutting input sprocket 86 at the left end is connected by a cutting input chain 87, and the handling cylinder 21 and the supply conveyor 17 are interlocked via a cutting input shaft 18 that supports the entire cutting unit 3 so as to be movable up and down. It is configured to drive. As shown in FIGS. 20 to 24, a header drive shaft 91 is provided on the rear surface side of the left side of the grain header 12 of the reaping portion 3 via a pair of header drive bearing bodies 141. The left end of the cutting input shaft 18 is connected to the right end of the header drive shaft 91 via the header drive chain 90 and header drive sprockets 88 and 89. A scraping shaft 93 that pivotally supports the scraping auger 13 is provided. A left end of the header drive shaft 91 is connected to the left end of the take-in shaft 93 via a take-up drive chain 92 and take-up drive sprockets 94 and 95, and through the cutting input shaft 18 and the header drive shaft 91. The take-up auger 13 is configured to be driven.

The left and right feeder house bearing bodies 140 are bolted to the front surface of the machine housing of the threshing section 9, and the left and right ends of the cutting input shaft 18 are pivotally supported on the left and right feeder house bearing bodies 140. A front end of the feeder house 11 is pivotally connected to the front end of the feeder house 11, and a bearing frame 142 is fixed to the rear side of the left side of the grain header 12 so that the bearing frame 142 has a pair of header drive bearing bodies 141. The bolt is fastened.

1, 12, 20 to 24, and 26, a reel shaft 96 that pivotally supports the take-up reel 14 is provided, and left and right end portions of the reel shaft 96 are provided at the tip portions of the left and right lifting support frames 151. Is pivotally supported. Left and right reel lifting fulcrum brackets 152 are provided at the left and right ends of the top of the grain header 12, and the lifting fulcrum boss portions 152 a of the left and right reel lifting fulcrum brackets 152 and the lifting support mounting seats 151 a at the base ends of the left and right lifting support frames 151 are provided. The left and right reel lifting fulcrum shafts 153 are detachably penetrated from the outer side of the machine, and the left and right reel lifting fulcrum shafts 153 are detachably locked to the ring grooves at the inner end of the machine. The scraping reel 14 is arranged on the upper surface side of the grain header 12 so as to be movable up and down via left and right reel lifting fulcrum shafts 153. The inner retaining ring 154 is removed and the left and right reel lifting fulcrum shafts 153 are removed. Thus, the take-up reel 14 can be removed. Instead of the machine inner retaining ring 154, the right and left reel lifting fulcrum shafts 153 may be detachably locked using the fastening bolts or the like.

Further, the left and right side surfaces of the grain header 12 are provided with an extendable support height adjusting arm 155 that supports an intermediate portion of the left and right lifting support frames 151. The support height of 14 can be changed in multiple stages. It is also possible to form the support height adjusting arm 155 with a hydraulic cylinder and to change the support height of the take-up reel 14 steplessly by the hydraulic pressure of the hydraulic cylinder.

Furthermore, the left end of the left reel elevating fulcrum shaft 153 is extended outwardly from the left side, and the elevating fulcrum boss portion 152a of the left reel elevating fulcrum bracket 152 and the elevating support attachment of the left elevating support frame 151 base end are provided. The right portion of the left reel lifting / lowering fulcrum shaft 153 is detachably penetrated through the seat 151a, and the reel driving sprocket 98 and the reel driving pulley 161 are rotatably supported on the left side of the left reel lifting / lowering fulcrum shaft 153. . The left side surface of the reel drive sprocket 98 and the right side surface of the reel drive pulley 161 are integrally crimped to fasten the bolt 162. A reel drive sprocket 98 and a reel drive pulley 161 are rotatably supported by a ball bearing bearing at an intermediate portion of the left reel lift fulcrum shaft 153.

As shown in FIGS. 12 and 24, the reel drive chain 97 is hung around the reel input sprocket 99 and the reel drive sprocket 98 provided at the left end portion of the header drive shaft 91, and the reel provided at the left end portion of the reel shaft 96. A reel driving belt 164 is wound around the driven pulley 163 and the reel driving pulley 161. A reel drive tension pulley 166 is pivotally supported at the tip of the reel drive tension arm 165, and the reel drive tension pulley 166 is pressed against the reel drive belt 164 by the force of the reel drive tension spring 167, so that the reel drive tension pulley 166 Thus, the reel driving belt 164 is supported in tension. A reel shaft 96 is linked to the header drive shaft 91 via a reel drive chain 97 and a reel drive belt 164.

The reel drive tension arm 165 has a base end side arm boss 165a that passes through the outer end of the left reel lifting fulcrum shaft 153, and the left reel lifting fulcrum shaft 153 on the outer end of the machine. 168 is detachably locked. With the outer retaining ring 168 removed, the integrated reel drive sprocket 98 and reel drive pulley 161 or reel drive tension arm 165 is configured to be detachable on the left end side of the left reel lifting fulcrum shaft 153. Yes. The reel drive chain 97 is installed in the chain cover body 169, and the reel drive belt 164 is installed in the belt cover body 170.

Further, a cutting blade 15 is connected to the right end portion of the take-in shaft 93 via a cutting blade drive crank mechanism 100. By the operation of the work clutch lever 46 with the work clutch 60, each part of the cutting unit 3 (the supply conveyor 17, the take-up auger 13, the take-up reel 14, and the cutting blade 15) is driven, and the uncut rice in the field It is configured to continuously cut the tip side of the reed. The cutting blade drive crank mechanism 100 is installed in the cutting blade drive cover body 171 on the right side of the cutting unit 3. In the structure in which the heel cutting blade 19 is provided, the heel cutting shaft 104 is connected to the right end portion of the cutting input shaft 18 through the heel cutting chain 101 and the sprockets 102 and 103. A heel cutting blade 19 is connected to a heel cutting shaft 104 supported by the front end portion via a heel cutting crank mechanism 105. After the cutting edge 15 of the grain culm in the field is cut with the cutting blade 15, the root side of the grain cereal in the field is subsequently cut with the heel cutting blade 19 so that the cereal stump remaining in the field becomes short. It is configured.

As shown in FIGS. 1 to 3, 20 to 24, and 26 to 28, the cutting part 3 having the cutting blade 15 and the take-in reel 14, the threshing part 9 having the handling cylinder 21, and the traveling part A reel drive pulley 161 and a reel drive arranged on a reel lifting / lowering fulcrum shaft 153 in a combine provided with a traveling machine body 1 having a crawler belt 2 and an engine 7 and a scraping reel 14 mounted on the reel lifting / lowering fulcrum shaft 153 so that the support height can be changed. The reel driving tension pulley 166 of the reel driving belt 164 is attached to a reel driving tension arm 165 disposed on the reel lifting / lowering fulcrum shaft 153. . Therefore, it is possible to easily reduce the supporting load of the take-up reel 14 applied to the elevating support portion, to simplify the drive structure of the take-up reel 14, and to easily reduce the size and weight of the cutting unit 3 (the entire combine). In addition, the speed adjustment range of the take-up reel 14 can be widened while reducing the number of parts of the drive unit of the take-up reel 14. The position at which the reel drive tension pulley 166 is pressed against the reel drive belt 164 becomes a substantially constant position, and the tension can be easily adjusted.

As shown in FIGS. 20 to 24, the take-up reel 14 is attached to the front end side of the lifting support frame 151, and one end side of the reel lifting fulcrum shaft 153 is attached to and detached from the lifting fulcrum boss portion 152a of the cutting unit 3 machine housing. It is engaged and fixed so that the base end side of the lifting support frame 151 is pivoted on one end side of the reel lifting fulcrum shaft 153, and the other end side of the reel lifting fulcrum shaft 153 is outward from the lifting fulcrum boss portion 152a. The reel drive pulley 161 and the reel drive tension arm 165 are pivotally supported on the outer side of the reel lifting fulcrum shaft 153 so as to be rotatable. Therefore, the lifting / lowering structure such as the take-up reel 14 and the lifting / lowering support frame 151 can be easily reduced in weight, and the supporting load applied to the proximal end of the lifting / lowering support frame 151 can be easily reduced. The workability of attaching and detaching the take-up reel 14 or the maintenance workability of the drive section of the take-up reel 14 can be improved.

20 to 24, a reel driving sprocket 98 is integrally fastened and fixed to a reel driving pulley 161, and a driving force transmitted to the cutting unit 3 via the reel driving sprocket 98 is branched and input. The driving force is transmitted to the take-in reel 14 via 161. Therefore, the bearing structure (bearing bearing, etc.) of the reel drive sprocket 98 and the reel drive pulley 161 can be simplified, the number of components of the drive reel 14 drive structure can be reduced, and the drive reel 14 drive structure can be configured at low cost. .

As shown in FIGS. 20 to 24, one end side of the reel lifting fulcrum shaft 153 is supported by the lifting fulcrum boss portion 152a of the three cutting parts, and the reel driving pulley 161 and the reel driving sprocket are provided at the intermediate portion of the reel lifting fulcrum shaft 153. A reel drive tension arm 165 is pivotally supported on the other end side of the reel lifting / lowering fulcrum shaft 153. Therefore, the reel drive pulley 161 and the reel drive sprocket 98 can be easily attached and detached with the reel drive pulley 161 and the reel drive sprocket 98 attached while the scraping reel 14 is attached via the reel lifting fulcrum shaft 153. Below, the reel drive tension arm 165 can be easily attached and detached. Assembling workability of the take-in reel 14 or maintenance work work of the drive unit 14 can be easily improved.

Next, the structure of the traveling machine body 1 will be described with reference to FIGS. 4 to 11 and FIGS. 29 to 33. FIG. As shown in FIGS. 4 to 11 and FIGS. 29 to 33, the lower body frame 1a, the upper body frame 1b, and the support frame 1c constitute the traveling body 1 in a multi-stage vertical structure. The left and right crawler belts 2 are installed on the lower surface side of the lower body frame 1 a via the left and right track frames 50. Further, the lower surface of the engine 7 is connected to the mounting portion on the upper surface of the upper body frame 1b, and the engine 7 is mounted on the upper body frame 1b. The engine 7 is disposed between the driving operation section 5 and the saddle receiving section 6. The That is, the engine 7 is disposed at the center of the left and right width of the traveling body 1, the driving operation unit 5 is disposed at the rear of the upper body frame 1 b on the right side of the engine 7 around the engine 7, and the upper part on the left side of the engine 7. A saddle receiving part 6 is arranged at the rear of the machine body frame 1 b, a driving operation part 5 is arranged on the rear right side of the traveling machine body 1, and a saddle receiving part 6 is arranged on the rear left side of the traveling machine body 1. A battery 56 is disposed on the upper right side surface of the upper body frame 1 b on which the engine 7 is mounted, and the battery 56 is used as a starting power source for the engine 7.

On the other hand, the front end side of the lower body frame 1a extends forward from the front end side of the upper body frame 1b, and the bottom portion of the threshing portion 9 is placed on the upper surface of the front end side of the lower body frame 1a. The engine 7 is installed on the upper surface of the upper body frame 1b on the rear side of the threshing portion 9, and the height of the upper surface of the threshing portion 9 and the height of the upper surface of the engine 7 are made to be substantially the same height. The swing sorter 26 of the grain sorting mechanism 10 is supported at a position substantially the same as the upper machine frame 1b, and the installation surface (lower machine frame) of the threshing unit 9 is more than the installation surface (upper machine frame 1b upper surface) of the engine 7. 1a upper surface) is formed low, and the harvested culm inlet (handle opening supply plate 9a) of the threshing unit 9 is configured to be disposed at a low position of the traveling machine body 1. In addition, the lifting hydraulic cylinder 4 is attached to the front end of the lower fuselage frame 1a, and the hydraulic oil tank 55 is disposed between the front end of the upper fuselage frame 1b (the rear surface of the threshing portion 9) and the lower fuselage frame 1a, and the lifting hydraulic pressure is increased. The hydraulic oil such as the cylinder 4 is stored in the hydraulic oil tank 55.

On the other hand, the rear ends of the lower body frame 1a are connected to the rear ends of the left and right track frames 50 by the left and right rear support legs 33, and the upper ends of the left and right rear support legs 33 are extended toward the rear upper side of the lower body frame 1a. The left and right axle cases 63a on both sides of the transmission case 63 are detachably supported on the upper ends of the left and right rear support legs 33, and the rear end side of the upper fuselage frame 1b is located behind the rear end side of the lower fuselage frame 1a. The upper end side of the transmission case 63 is detachably supported on the rear end side of the upper body frame 1b via the upper connecting body 62. The upper end side of the rear support leg 33 and the upper body frame 1b The mission case 63 is disposed in a backward inclined posture on the rear end side. The rear end portions of the left and right crawler belts 2 are stretched over the left and right axle cases 63 a on the lower end side of the transmission case 63 via the left and right drive sprockets 51. That is, the drive sprocket 51 is supported on the upper end side of the rear support leg 33, and the non-grounding side of the crawler belt 2 is stretched between the tension roller 52 at the front end of the track frame 50 and the drive sprocket 51 on the upper end side of the rear support leg 33. The non-grounding side of the crawler belt 2 is supported in a front-rear-rear-high position in which the crawler belt 2 is inclined forward and downward.

As shown in FIGS. 4 to 9, 16, 18, and 29 to 33, a driver's seat bracket body 111 is provided on the right rear end of the upper fuselage frame 1b, and the driver's seat frame 112 is attached to the driver's seat bracket body 111. The front end portion is detachably bolted. Further, the rear end side of the driver's seat frame 112 extends substantially horizontally from the right rear end of the upper fuselage frame 1b to the rear, and the driver seat 42 is attached to the rear end portion of the driver's seat frame 112. The driver seat 42 is disposed behind the driver operation unit 5 and an operator seated on the driver seat 42 (shown in phantom lines in FIGS. 1, 2, 26, and 27) The levers 43, 44, 45, 46, 47, 48 and the like are configured to be operable. Further, a foot guard body 114 disposed between the feet of the operator sitting on the driver's seat 42 and the rear end of the right crawler belt 2 is provided. A guard body support frame 115 is extended downward from the front-rear width intermediate portion of the driver's seat frame 112, the foot guard body 114 is fixed to the guard body support frame 115, and the operator's foot contacts the right crawler belt 2. Is prevented by the foot guard body 114. In a walking operation in which an operator does not sit on the driver seat 42, the driver seat frame 112 is detached from the driver seat bracket body 111 and the driver seat 42 is removed. It is configured to walk and perform harvesting operations.

In addition, the footrest frame 113 is fixed to the lower end of the guard body support frame 115, and an operator who sits on the driver seat 42 places the foot on the footrest frame 113, and the height adjustment frame 110 is attached to the driver seat frame 112. The upper end side of the guard body support frame 115 is bolted so as to be movable up and down. On the other hand, as shown in FIGS. 5, 7, 11, 16, and 17, a mission protection frame 116 that bolts both ends to the right rear end portion and the left axle case 63 a of the upper body frame 1 b is provided. The rear side of the case 63 is surrounded by a mission protection frame 116, and a mission protection cover 117 is attached to the mission protection frame 116. The upper side and the rear side of the hydraulic continuously variable transmission 64 above the mission case 63 are covered by the mission protection cover 117. It is configured to cover.

Referring to FIGS. 7 to 11, 13, 25, 32, 33, 36, and 40 to 42, the mounting structure of the counter shaft 72 will be described. As shown in FIGS. 7 to 11, left and right bearing bracket bodies 143 and 144 are integrally welded and fixed to the left and right ends of the front part of the upper body frame 1b of the traveling body 1, and the left bearing bracket body 143 is fixed to the left bearing. The body 71a is bolted, the right bearing body 71b is bolted to the right bearing bracket body 144, and the counter shaft 72 is installed in a horizontal position above the front upper body frame 1b extending in the left-right direction. Yes.

In addition, as shown in FIGS. 13, 25, 32, 33, 36, and 40 to 42, the blower fan support frame 145 and the blower fan support side plate 146 are erected on the upper left surface of the upper body frame 1b. The blower fan support frame 145 and the blower fan support side plate 146 are connected and fixed, the fan case portion 34a of the blower fan 34 is fixed to the left side surface of the blower fan support side plate 146, and the blower fan 34 is attached to the front portion on the left side of the engine 7. Is arranged. The blower fan duct 35 is fixed to the lower front side of the fan case portion 34 a and extends forward toward the threshing portion 9. After the air exhaust port 35a of the blower fan duct 35 is installed above the entrance of the grain discharge conveyor 8, and the blower fan duct 35 extends backward from the connecting portion with the threshing unit 9, The rear part is bent upward and connected to the fan case part 34a.

In addition, the base end side of the threshing tension arm 147 is attached to the blower fan support frame 145, the work clutch 60 is disposed on the front end side of the threshing tension arm 147 extended forward, and the threshing drive belt 59 is stretched through the work clutch 60. The counter shaft 72 is connected to the output shaft 65 of the engine 7. Further, a tension arm shaft 148 is provided on the intermediate frame 131, and a travel tension arm 149 that supports the travel clutch 68 and an output tension arm 182 that supports a travel output tension pulley 181 are connected via the tension arm shaft 148. It is supported by the intermediate frame 131.

As shown in FIG. 1, FIG. 7 to FIG. 17 and FIG. 26, a traveling machine body 1 provided with a cutting part 3 having a cutting blade 15, a threshing part 9 having a handling cylinder 21, a crawler belt 2 and an engine 7 as traveling parts. In a combine that supplies cereals from the reaping unit 3 to the threshing unit 9, a transmission case 63 is disposed in the traveling machine body 1 behind the engine 7, an intermediate shaft 132 is provided between the engine 7 and the transmission case 63, and the traveling machine body 1 The intermediate shaft 132 extends in the left-right direction, and the transmission path between the engine 7 and the transmission case 63 is shifted in the left-right direction by the intermediate shaft 132. Therefore, the attachment position of the intermediate shaft 132 can be easily selected in the vertical and horizontal directions. That is, it is possible to reduce the problem that the vertical and horizontal mounting positions of the engine 7 and the vertical and horizontal mounting positions of the transmission case 63 are mutually restricted, and the transmission case 63 is adjacent to the rear side of the engine 7. Can be installed. For example, while the engine 7 can be arranged at a high center position of the traveling machine body 1, the mission case 63 can be arranged at a lower right position of the traveling machine body 1, and the front-rear width or the left-right width of the engine 7 and the transmission case 63 installation portion can be configured compactly. it can.

As shown in FIGS. 7 to 17, a transmission path between the engine 7 and the transmission case 63 is formed by the front traveling output belt 67a and the rear traveling output belt 67b, and the front traveling output belt 67a extended in the front-rear direction. Thus, the rear traveling output belt 67b extending in the front-rear direction is shifted toward the center of the machine body. Accordingly, the engine 7 and the transmission case 63 can be arranged between the left and right crawler belts 2 near the center of the traveling machine body 1. The left and right weight balance of the lightweight traveling structure 1 can be easily set. In other words, the drive structure of each part of the combine is simplified, and it is possible to easily achieve downsizing of the entire combine. it can.

7 to 17, the left intermediate pulley 133 that supports the rear end portion of the front traveling output belt 67a and the right intermediate pulley 134 that supports the front end portion of the rear traveling output belt 67b are provided on the traveling machine body 1. It arrange | positions on the intermediate shaft 132 of the intermediate frame 131 as the same support | pillar frame to provide. Accordingly, the support structure of the intermediate pulleys 133 and 134 can be simplified, the number of components of the transmission path between the engine 7 and the transmission case 63 can be reduced, and the cost can be reduced, and the traveling output belts 67a and 67b can be configured. Detachment workability can be improved.

As shown in FIGS. 7 to 17, a travel clutch 68 as a tension pulley of the front travel output belt 67a is provided on the travel tension arm 149 extending from the intermediate frame 131 to the front of the machine body, and extends from the intermediate frame 131 to the rear of the machine body. A tension pulley 181 for traveling output of the rear traveling output belt 67 b is provided on the output tension arm 182, and the tension arms 149 and 182 are supported on the same tension arm shaft 148 of the intermediate frame 131. Therefore, the support structure of the travel clutch 68, the travel output tension pulley 181 and the tension arms 149 and 182 can be simplified, and the number of components of the transmission path between the engine 7 and the transmission case 63 can be reduced and the cost can be reduced. In addition to the construction, it is possible to improve the attachment / detachment workability of the traveling output belts 67a and 67b.

As shown in FIGS. 7 to 17, a hydraulic continuously variable transmission 64 is mounted and fixed on a transmission case 63, and a variable speed input pulley 70 and an input pulley fan 70a are disposed on the left side of the hydraulic continuously variable transmission 64. An input pulley fan 70a is disposed behind the front traveling output belt 67a on the left side of the engine 7. Therefore, the transmission case 63 can be supported by shifting the engine 7 in the right direction away from the installation side of the travel output belts 67a and 67b, and the input pulley on the rear side of the front travel output belt 67a on the left side of the engine 7 can be supported. An installation space for the fan 70a can be easily secured. The lateral width of the travel output belts 67a and 67b and the transmission case 63 can be easily reduced. The transmission structure between the engine 7 and the hydraulic continuously variable transmission 64 can be made compact by concentrating the power transmission system in a narrow space.

On the other hand, as shown in FIGS. 6, 14, 18, and 31, an opening 7 a for taking in cooling air is formed in the upper right side on the rear side of the engine 7, and for discharging cooling air in the upper left side on the rear side of the engine 7. An opening 7b is formed, outside air for cooling is taken into the cylinder head portion of the engine 7 from the opening portion 7a for taking in cooling air, and warm air in the cylinder head portion of the engine 7 is discharged from the opening portion 7b for discharging cooling air, The cylinder head portion of the engine 7 is configured to be air cooled. 14, 18, 25 and 32, a belt cover body 183 is provided on the left side of the engine 7 on which the threshing drive belt 59, the front traveling output belt 67a, and the rear traveling output belt 67b are arranged. It is stretched.

That is, the blower fan support side plate 146 is erected on the front side of the blower fan support frame 145, the left side wall portion of the belt cover body 183 is erected on the rear side of the blower fan support frame 145, and each of the belts 59, 67a. , 67b, the upper surface wall portion of the belt cover body 183 extends in the front-rear direction, and the threshing drive belt 59 extends in the front-rear direction on the left side of the engine 7, and the front traveling output belt 67a. The upper side and the left side of the rear running output belt 67b are configured to be blocked by the left and upper wall portions of the blower fan support side plate 146 and the belt cover 183.

With the above configuration, the warm air of the cylinder head portion of the engine 7 discharged from the opening 7b for discharging the cooling air moves above the upper surface wall portion of the belt cover body 183. The belts 59, 67a, 67b can be prevented from being heated. Further, since the outside air is sucked into the blower fan 34 from the outside air intake port 146a formed in the blower fan support side plate 146, the belts 59, 67a, which are covered with the blower fan support side plate 146 and the belt cover 183, respectively. The outside air in the installation space 67b is sucked into the blower fan 34 through the outside air intake port 146a, and the lower surface side openings of the blower fan support side plate 146 and the belt cover body 183 (the upper body frame 1b installation portion or the engine 7). Outside air is sucked into the space covered with the blower fan support side plate 146 and the belt cover body 183 from a place where there is relatively little dust in the vicinity of the mounting portion), and the outside air inside the space is taken into the outside air intake port 146a. Can be sucked into the blower fan 34. Therefore, air with relatively little dust, such as sawdust, can be supplied from the blower fan 34 to the swing sorter 26 as a sorter.

The fan drive cover body 195 fixed to the left side of the threshing part 9 and the left side of the fan case part 34a has a fan drive chain 84 serving as a fan drive part. A part of the fan drive cover body 195 is notched, and the notch is covered with a grain discharge conveyor 8 installed on the left side of the fan drive cover body 195. The fan drive cover body 195 extends in the front-rear direction at a position higher than the blower fan duct 35. Therefore, the fan drive cover body 195 can be easily attached and detached, and the maintainability of the fan drive unit can be improved.

As shown in FIGS. 1, 4, 5, 13, 14, 18, 19, 25, 26, 29, and 30, the cutting unit 3 having the cutting blade 15 and the handling cylinder 21 are provided. In the combine which supplies the threshing part 9 and the traveling machine body 1 provided with the traveling part 2 and the engine 7 and supplies the cereals from the reaping part 3 to the threshing part 9, the threshing part 9 and the engine 7 are arranged before and after the body, A grain discharge conveyor 8 is disposed on one side of the threshing section 9 and the engine 7, and a wind-selecting blower fan 34 of the threshing section 9 is disposed between the engine 7 and the grain discharge conveyor 8. Therefore, the large wind-selective blower fan 34 can be installed in a compact manner, and the overall size of the combine can be easily reduced, and the threshing / sorting structure can be simplified while maintaining the threshing / sorting ability of the threshing unit 9. Moreover, the engine 7 mounting space, the control part space, the saddle space, or the like can be easily secured on the rear side of the threshing part 9. The entire fuselage can be made compact while ensuring the harvesting width of the cereal.

As shown in FIGS. 4, 13, 18, 19, 25, and 29, the threshing unit 9 includes a blower fan duct 35 that allows communication between the grain sorting mechanism 10 of the threshing unit 9 and the blower fan 34. A blower fan duct 35 is extended on one side of the engine 7 in the longitudinal direction of the machine body. Therefore, the engine 7, the threshing unit 9 and the blower fan 34 can be arranged close to each other, the mounting structure of the blower duct can be simplified, and the grain discharge conveyor 8 and the blower fan duct 35 are integrated into a two-stage structure. The grain discharge conveyor 8 and the fan fan duct 35 mounting part can be made compact by effectively utilizing the threshing part 9 and one side part space of the engine 7.

As shown in FIGS. 13, 14, 18, and 25, a blower fan support side plate 146 as a shielding plate is erected on the upper surface between the engine 7 and the blower fan 34 among the upper surfaces of the traveling machine body 1. 7 and the blower fan 34 are partitioned by a blower fan support side plate 146, and a suction port (outside air intake port 146 a) of the blower fan 34 is opened between the engine 7 and the blower fan support side plate 146. Accordingly, hot air around the engine 7 can be supplied to the grain sorting mechanism 10 of the threshing unit 9 via the blower fan 34, and the cooling effect of the engine 7 can be easily ensured, but is sent to the grain sorting mechanism 10. The blower fan 34 can be used as a heat fan that raises the temperature of the sorting air, and the sorting air having a temperature higher than the outside air temperature can be sent from the blower fan 34 to the grain sorting mechanism 10. Humidity can be reduced, and the threshing performance or sorting performance of the threshing unit 9 can be easily improved.

As shown in FIGS. 13, 14, 18 and 25, a threshing drive belt 59 as an output transmission belt of the engine 7 is extended between the engine 7 and the blower fan support side plate 146, and the blower fan support side plate. A fan case 34 a of the blower fan 34 is attached to the outer surface of the machine 146. Therefore, the threshing drive belt 59 can be prevented from being deteriorated by hot air around the engine 7, the durability of the threshing drive belt 59 can be improved, and the blower fan support side plate provided with a shielding plate function as a support member of the blower fan 34. Although it is not necessary to provide a special support member for the blower fan separately from the blower fan support side plate body 146 that can also be used as the body 146 and has a shielding plate function, the mounting cost of the blower fan 34 can be reduced, The mounting structure of the blower fan 34 can be simplified.

As shown in FIGS. 5, 11, 13, 18, and 30, the engine 7 and the blower fan 34 are disposed within the left and right widths of the threshing unit 9, and the threshing unit 9 and the blower fan 34 that are formed substantially flush with each other. The driving force is transmitted from the handling cylinder 21 to the blower fan 34 through the outer side surfaces of the machines. Therefore, the sorting blower fan 34 can be arranged within the lateral width of the machine body and can be configured compactly, but the handling cylinder 21 is centered compared to the structure for transmitting the output of the engine 7 from the cutting part 3 to the threshing part 9. Thus, the working part drive path can be divided and configured on both sides of the handling cylinder 21, and the assembly of the work part drive path or maintenance workability can be easily improved.

As shown in FIG. 14, FIG. 18, FIG. 25, etc., the front end side of the base support frame 38a is supported by the arm strut frame 39a standing part in the upper body frame 1b. A base support frame 38a is extended to the rear side of the left crawler belt 2, and a hook receiving partition 118 is provided on the front end side of the base support frame 38a. Between the rear side of the crawler belt 2 on the left side and the front side of the hook receiving portion 6 is shielded by the hook receiving partition body 118. Further, a hook receiving base 38 is provided on the rear end side of the base supporting frame 38a. For example, in a situation of a harvesting operation in which a straw bag 37 is mounted on the straw arm body 39, the straw bag 37 is placed on the straw receiving stand 38, and grains are collected in the straw bag 37, the straw receiving stand It is possible to prevent the mud in the field from splashing from the rear side of the left crawler belt 2 toward the bag 37 on the left side 38 by the heel receiving partition 118, and Contact with the rear side or the like can be prevented by the hook receiving partition 118. It should be noted that, depending on the shape of the bag bag 37 and the like, it is possible to support the bag receiving table 38 on the table support frame 38a so that the height can be adjusted.

Further, as shown in FIGS. 4 to 6, 13, and 29 to 31, the mission protection cover 117, the right side of the saddle receiving partition 118, and the rear of the belt cover 183, cover. The left and right saddle insertion ports 8a that are bifurcated into a bifurcated shape by horizontally extending the saddle receiving base 38 across the rear portion of the left crawler belt 2 and the rear side of the mission case 63 that are covered by the left side of the saddle receiving partition 118 38, when the bag 37 is alternately attached to the left and right rod input 8a, and when the bag 37 is completely filled from one side (left rod input 8a), it protrudes toward the steering column 41 By operating the operation portion of the input switching lever 185 that has been moved, the input switching shutter 186 at the base end of the left and right bag input 8a is switched, and the bag 37 is filled from the other (right bag input 8a). It is configured.

In addition, the grain discharging conveyor is obtained by dropping the straw bag 37 filled with straw into the field and attaching the empty straw bag 37 to the straw input port 8a and the switching operation of the input switching shutter 186 of the input switching lever 185. A plurality of koji bags 37 are filled with koji (grains) continuously carried out from eight. In addition, the input switching lever 185 is projected from the lower surface side of the rod input port 8a toward the steering column 41, and the indicator arm 187 is protruded rearward and upward from the upper surface side of the rod input port 8a. The shutter 186 and the indicator arm 187 are integrally connected so that the operator can operate the closing switch lever 185 to switch the closing switch shutter 186 while confirming the switching direction of the closing switch shutter 186. It is composed.

Next, with reference to FIGS. 36 to 39, a mounting structure of the handling chamber inlet reed valve 311 as a cereal transfer body will be described. As shown in FIGS. 36 to 39, a handling port supply plate 9a is provided on the left front side of the threshing unit 9, and the rear end side of the feeder house 11 faces the handling port 9b on the left front side of the threshing unit 9. The harvested cereal of the harvesting part 3 is supplied from the rear end side to the inside of the handling chamber 22 through the handling port 9b, and the handling chamber 22 in which the handling cylinder 21 is installed is cut from the conveying outlet of the feeder house 11 In the structure for supplying cereals, a handling chamber inlet reed valve 311 as a cereal transfer body is provided at the bottom of the handling port 9b of the handling chamber 22 into which the harvested cereals are fed from the feeder house 11, and the handling cylinder 21 is provided inside. When the harvested cereal meal is supplied to the bottom of the handling port 9b from the feeder outlet of the feeder house 11 to the installed handling chamber 22, the harvested cereal meal at the bottom of the handling port 9b is directed to the dust outlet 23 side and the handling chamber inlet reed valve 311 is configured to guide the movement.

That is, the feeder house 11 is arranged at the left end portion of the threshing portion 9, the dust outlet 23 is formed at the right end portion of the threshing portion 9 opposite to the feeder house 11, and the receiving net 24 is formed at the bottom portion of the handling chamber 22. The grain shed by the handling cylinder 21 is caused to leak to the lower part of the receiving net 24, and is fed from the feeder house 11 to the handling port 9 b at the left end of the handling chamber 22 into which the harvested cereal meal is introduced. The handling chamber inlet reed valve 311 is detachably fastened to the upper surface of the left end of the receiving net 24 facing the bolt 312 so as to reduce the amount of harvested cereal scum that is retained near the feeder outlet 11 or the handling port 9b. It is configured.

Further, the handling cylinder 21 is horizontally mounted in the horizontal direction of the traveling machine body 1, and the grain take-out conveyor 36 disposed below the handling chamber 22 is horizontally mounted in the horizontal direction, and is disposed on the dust outlet 23 side on the right side of the traveling machine body 1. While the feed start end side of the grain take-out conveyor 36 is arranged, the feed end side of the grain take-out conveyor 36 is arranged on the left side of the traveling machine 1, and the feed start end of the grain discharge conveyor 8 is placed on the feed end side of the grain take-out conveyor 36. The parts are connected. That is, the feeder house 11 and the grain discharge conveyor 8 are disposed at one end of the threshing section 9 mounted in the horizontal direction, and the grain is taken out below the handling chamber 22 in which the handling cylinder 21 is provided. A conveyor 36 is arranged in the left-right direction.

With the above configuration, the waste inside the handling chamber 22 is discharged out of the machine from the dust outlet 23 of the threshing part 9 and the other side part (right side part of the machine body) opposite to the feeder house 11 installation part (left side part of the machine body). At the same time, the grain that has leaked from the left side of the body of the receiving net 24 from the side of the side of the body of the threshing part 9 (left side of the machine body) on the feeder house 11 installation side is transferred to the grain takeout conveyor 36. Then, it is taken out toward the grain discharge conveyor 8 outside the machine.

Accordingly, in a threshing operation in which a large amount of grain is threshed on the feeder house 11 installation side (the handling chamber 22 entrance side) and a large amount of grain leaks below the receiving net 24 on the handling chamber 22 entrance side, Compared to the structure in which the grain is taken out from the 23rd side to the outside of the machine, a large amount of grain shed on the entrance side of the handling room 22 (near the handling opening 9b) is placed on the right side of the body away from the handling opening 9b on the left side of the body. Since it is not necessary to move to the dust outlet 23 side, the time which the grain threshed in the handling cylinder 21 stays in the threshing part 9 can be shortened. Further, since the amount of dust or dust mixed in the grain on the handling port 9b side is smaller than that on the dust outlet 23 side, the grain conveying efficiency of the grain extracting conveyor 36 can be improved, and the grain extracting conveyor 36 Since the sorting air of the blower fan 34 is supplied from the feed end side toward the feed start end side, light dust or dust is transferred while being transported from the dust outlet 23 side to the handling port 9b side. In the sorting air, the dust or dust is easily discharged from the dust outlet 23 to the outside of the right side of the machine, and is mixed in the grain taken out from the feed terminal side of the grain takeout conveyor 36 to the outside of the left side of the machine. The amount or dust amount can be reduced.

43 and 44, when the operator sits and operates, the driver seat 42 is attached to the rear position of the steering column 41. A driver's seat bracket body 111 is provided at the right rear end of the upper body frame 1b, and a front end portion of the driver's seat frame 112 is detachably bolted to the driver's seat bracket body 111. Further, the rear end side of the driver's seat frame 112 extends substantially horizontally from the right rear end of the upper fuselage frame 1b to the rear, and the driver seat 42 is attached to the rear end portion of the driver's seat frame 112. A driver seat 42 is arranged behind the driver operation unit 5 and an operator (shown in phantom lines in FIG. 44) sitting on the driver seat 42 receives each lever 43, 44, 45, 46, 47, 48, etc. are configured to be operable.

Also provided is a foot guard body 114 disposed between the feet of the operator sitting on the driver seat 42 and the rear end of the right crawler belt 2. A guard body support frame 115 is extended downward from the front-rear width intermediate portion of the driver seat frame 112, and the foot guard body 114 is detachably fixed to the guard body support frame 115. The foot guard body 114 can prevent mud from the field by the crawler belt 2 from being applied to the operator's feet, and the foot guard body 114 can prevent the operator's feet from contacting the right crawler belt 2. In addition, the footrest frame 113 is fixed to the lower end of the guard body support frame 115, and an operator who sits on the driver seat 42 places the foot on the footrest frame 113, and the height adjustment frame 110 is attached to the driver seat frame 112. The upper end side of the guard body support frame 115 is bolted so as to be movable up and down.

1 traveling body 2 crawler track (traveling section)
3 Cutting part 7 Engine 8 Grain discharge conveyor 9 Threshing part 9b Handling port 10 Grain sorting mechanism 11 Feeder house 12 Grain header 15 Cutting blade 20 Handling cylinder shaft 21 Handling cylinder
22 Handling chamber 23 Dust outlet 23a Dust lowering plate body 23b Dust exhaust guide part 34 Blower fan 34a Fan case part 35 Blower fan duct 35a Air outlet 35b Airflow direction guide plate body 35c Airflow direction guide plate body 35d Airflow direction guide plate body 36 Grain Extraction conveyor 59 Threshing drive belt (output transmission belt)
146 Blower fan support side plate (shield plate)
146a Outside air intake (air blower fan inlet)
191 Handling cylinder drive cover body 192 Sorting drive cover body 193 Cutting input cover body 194 Header drive cover body 195 Fan drive cover body

Claims (9)

In a combine that supplies a grain header, a feeder house and a cutting part having a cutting blade, a threshing part having a handling cylinder, a traveling machine body provided with a traveling part and an engine, and supplies cereals from the cutting part to the threshing part,
The threshing unit and the engine are arranged before and after the airframe, a grain discharge conveyor is arranged on one side of the threshing unit and the engine, and a fan for generating a sorting wind is arranged on the side of the engine. Combine with. The combine according to claim 1, wherein the fan is an air blowing fan for wind selection, and the air blowing fan is disposed between the engine and a grain discharge conveyor. A blower fan duct that communicates between the grain selection mechanism of the threshing part and the blower fan is provided, and the blower fan duct is extended in the longitudinal direction of the machine body at one side of the threshing part and the engine. The combine according to claim 2. A shielding plate is provided on the upper surface of the traveling machine body between the engine and the blower fan, and the engine and the blower fan are partitioned by the shield plate, and between the engine and the shield plate. The combine according to claim 2, wherein a suction port of the blower fan is opened. 5. The output transmission belt of the engine is extended between the engine and the shielding plate body, and a fan case portion of the blower fan is attached to an outside surface of the shielding plate body. Combine. The engine and the blower fan are disposed within the left and right widths of the threshing portion, and the driving force is transmitted from the handling cylinder to the blower fan via the machine-side surfaces of the threshing portion and the blower fan formed substantially flush with each other. The combine according to claim 2, which is configured as described above. The traveling unit has a pair of left and right crawler belts, and the handling cylinder is arranged in a horizontal posture in the left-right direction,
The both ends of the grain header project outside the left and right crawler belts, and the grain header is offset in the left-right direction.
The combine according to claim 1, wherein the fan is a blower fan that generates a sorting wind in the threshing portion, and is arranged inside a protrusion of the grain header. A grain discharging device that discharges the grain out of the machine from the threshing part is disposed on the large side of the grain header relative to the crawler belt,
The combine according to claim 7, wherein the blower fan is disposed between the engine and the grain discharging device. A dust outlet of the threshing portion is provided on the side of the grain header having a small allowance with respect to the crawler belt, and the front side of the threshing portion is connected to the feeder house on the side opposite to the dust outlet, to the grain header. The combine according to claim 8, wherein the feeder house is offset in the left-right direction.

Images