JP6430879B2 - Combine - Google Patents

Description

  The present invention relates to a combine equipped with a reaping part for reaping uncut cereal grains in a field and a threshing part for threshing 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 And a grain sorting mechanism for sorting the threshing product of the threshing part, and there is a technique for continuously harvesting and threshing uncut cereal grains in the field. In addition, the left and right support legs that have a divergent shape and the left and right auxiliary support legs that extend along the outer surface of the support leg are provided. There is a technique in which left and right track frames are connected to each other downward via left and right support legs and auxiliary support legs, and left and right traveling crawlers are installed as a traveling portion (see Patent Document 1, Patent Document 2, and Patent Document 3). ).

JP 2006-1461 A JP 2014-141125 A Japanese Patent No. 5204818

  In the prior art, since the lower end side of the support body is integrally fixed to both the upper surface and the side surface of the track frame, the strength of the support body is ensured and the connection rigidity between the traveling machine body and the track frame is more than a predetermined value. There is a problem that it is necessary to hold, and the weight of the support leg or the cost cannot be easily reduced. In addition, the structure including the front and rear extension frames that form the traveling machine body and connecting the rear reinforcing plate body to the rear surface side of the front and rear extension frames and the rear support legs is manufactured by simplifying the processing shape of the rear support legs. If the cost is reduced, there is a problem that it is not possible to easily secure the support load of the front and rear extension frame. Further, in the structure in which the exhaust pipe of the engine is extended backward between the threshing part and the Glen tank, when the Glen tank is supported so as to be deployable outwardly, the exhaust pipe is supported on the side edge of the threshing part. Therefore, there is a problem that the support structure of the exhaust pipe cannot be configured at low cost because the upper structure of the threshing portion cannot be easily simplified. In addition, in the structure that introduces fresh air (outside air) to the engine via the main air cleaner and the front air cleaner, a resonant case body that reduces intake noise generated by the introduction of fresh air is formed by sheet metal processing, There are problems that the structure for introducing fresh air into the engine cannot be constructed at a low cost and the resonant case body cannot be easily assembled.

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

In order to achieve the above object, a combine of an invention according to claim 1 includes 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 cylinder, and the cutting part and the threshing part. In a combine including an engine for driving the left and right support legs that are widened at the lower end when viewed from the front and back in the longitudinal direction of the traveling body, and left and right auxiliary members that extend along the outer surface of the support body. The structure includes a support leg, the left and right track frames are connected to the lower side of the left and right sides of the traveling machine body via the left and right support legs and auxiliary support legs, and the left and right track frames are supported by the left and right track frames. A support bracket body is provided on an upper surface side of the track frame, and a lower end side of the support leg body is integrally fixed to a side surface of the track frame and a side surface of the support bracket body It is obtained by integrally surfaces crimp the lower end of the auxiliary support legs body flat top surface of the leg bracket body.

  According to a second aspect of the present invention, in the combine according to the first aspect, the front and rear width dimension of the auxiliary support leg body is formed larger than the front and rear width dimension of the support leg body, and the support leg bracket body is flat. The lower end side of the auxiliary support leg is surface-bonded to a flat upper surface.

  A third aspect of the present invention is the combine according to the first aspect, wherein the combine is provided with a front / rear extending frame that forms the traveling machine body, and the lower surface side of the front / rear extending frame is provided with a pressure receiving frame body through the pressure receiving frame body. A part of the upper end side end surface of the support leg is fixed to the upper end side end surface of the auxiliary support leg.

  According to a fourth aspect of the present invention, in the combine according to the first aspect, the front and rear extension frames and the left and right extension frames forming the traveling machine body are provided, and the front and rear extension frames and the left and right extension frames are provided with the support legs. The upper end side is fixed, and the upper surface side of the middle part of the upper and lower reinforcing frame bodies is fixed to the lower surface side of the left and right extending frames, and the left and right upper reinforcement frame bodies are The upper surface side of both ends is fixed.

According to a fifth aspect of the present invention, in the combine according to the first aspect, the front and rear extension frames forming the traveling machine body are provided, and the left and right support legs support the front side of the left and right track frames. The left and right front support legs and the left and right rear support legs that support the rear side of the left and right track frames, and the front reinforcing plate is connected to the front and rear extension frames and the front side of the rear support legs. The front and rear extending frame and the rear support plate are connected to the rear side of the rear support plate, and the rear side reinforcement plate has a front and rear width dimension larger than that of the front side reinforcement plate. Is.

  A sixth aspect of the present invention is the combine according to the first aspect, further comprising a Glen tank that carries grain from the threshing portion via a milling cylinder, and the engine is disposed rearwardly between the threshing portion and the Glen tank. The exhaust pipe is extended and the threshing part supports the upper end side of the whipping cylinder via the whipping cylinder support frame body, and the threshing cylinder support frame body via the pipe support frame The rear end side of the exhaust pipe is supported.

According to a seventh aspect of the present invention, in the combine according to the first aspect, fresh air is introduced into the engine via the main air cleaner and the front air cleaner, and an intake sound generated by the introduction of the fresh air is reduced. A structure including a resonance case body made of synthetic resin, comprising an upper horizontal frame at an upper end portion of an engine room column, and a fastening band body to be engaged with the upper horizontal frame by an engagement shaft body and an engagement hook, A fastening band body is wound around the left and right sides and the rear surface side of the case body, and the resonance case body is fixedly supported on the upper horizontal frame.

According to an eighth aspect of the present invention, in the combine according to the first aspect, the front and rear extension frames and the left and right extension frames forming the traveling machine body are provided, and the left and right support legs are arranged in front of the left and right track frames. left and right front support leg member for supporting the part side, and a right and left rear support leg body rear side supporting the right and left track frames, said front support leg member and the right and left extending frame and extending frame longitudinal The upper end side of the rear support leg is fixed, a front reinforcing plate is connected to the front side of the front and rear extension frame and the rear support leg, and the rear reinforcing plate is connected to the rear side of the front and rear extension frame and the rear support leg. It is a structure that connects the body, and a mudguard cover body for covering the front side of the left and right extension frame is stretched between the working unit mounting frame frame body on the front and rear extension frame and the front reinforcing plate body Is.

According to the first aspect of the present invention, the vehicle includes 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 cylinder, and an engine for driving the cutting part and the threshing part. In the combine, the left and right support legs in the form of a divergent shape in which the left and right width dimension on the lower end side is increased in the longitudinal direction of the traveling machine body, and the left and right auxiliary support legs extending along the machine outer surface of the support body, A structure in which left and right track frames are connected to each other below the left and right sides of the traveling vehicle body via the left and right support legs and auxiliary support legs, and the left and right track frames are supported by the left and right track frames, and the upper surface of the track frame A support leg bracket body is provided on the side, and the lower end side of the support leg body is integrally fixed to the side surface of the track frame and the side surface of the support leg bracket body, and the flat upper surface of the support leg bracket body Since the lower end side of the auxiliary support leg is integrally surface-crimped, the laterally deformable force is mainly supported by fixing the track frame side face and the side of the support leg bracket body to the lower end side of the support leg body. On the other hand, by fixing the flat upper surface of the support leg bracket body to the lower end side of the auxiliary support leg body, it is possible to deal mainly with the vertical deformation force, the track frame and the support leg. The connecting portion on the lower end side of the body can be easily reinforced with the auxiliary support leg. That is, it is possible to easily secure the connection strength between the track frame and the lower end of the support leg, to easily secure the connection rigidity between the traveling machine body and the track frame, and to reduce the manufacturing cost such as sheet metal processing of the support leg, The weight of the support leg can be reduced.

  According to the second aspect of the present invention, the auxiliary support leg body has a structure in which a front-rear width dimension of the auxiliary support leg body is formed larger than a front-rear width dimension of the support leg body, and the auxiliary support leg body is formed on a flat upper surface of the support leg bracket body. Since the lower end side of the auxiliary support leg is bonded to the track frame, the connection strength between the lower end side of the track frame and the auxiliary support leg can be easily ensured as compared with the conventional structure in which the lower end face of the auxiliary support leg is joined to the track frame. For example, the support leg is manufactured by sheet metal processing in which the cross-sectional end surface of the support leg is formed in a U shape, and the upper surface side (U-shaped opening) of the support leg is closed with an auxiliary support leg. In the structure configured in the shape, the auxiliary support leg body is formed by using a steel rigid plate material having a thicker plate thickness than before, so that the connecting portion rigidity of the track frame and the lower end side of the support leg body can be increased by the auxiliary support leg body. Can be improved easily. Since it is not necessary to form the support legs using a thick steel rigid plate material, it is possible to easily reduce the weight or reduce the cost of the support legs.

  According to invention of Claim 3, it is a structure provided with the front-back extension frame which forms the said traveling body, Comprising: The upper end side end surface of the said supporting leg body is provided in the lower surface side of the front-back extension frame via the pressure receiving frame body. Since a part and the upper end side end surface of the auxiliary support leg are fixed, a part of the upper end side end face of the support leg and the lower end side of the pressure receiving frame body are welded to the upper end side end face of the auxiliary support leg. After fixing, the pressure receiving frame body is fixed to the front and rear extension frame by welding, and a part of the upper end side of the support leg body and the upper end side of the auxiliary support leg body are connected to the lower surface side of the front and rear extension frame. This improves welding workability. For example, after the lower end side of the support leg and the lower end side of the auxiliary support leg are welded to the upper surface side of the track frame, the pressure receiving frame body can be welded to the lower surface side of the front / rear extension frame. The welding work for connecting the upper end side of the support leg and the upper end side of the auxiliary support leg to the side can be simplified.

  According to the fourth aspect of the present invention, the structure includes a front-rear extension frame and a left-right extension frame that form the traveling machine body, and the upper end side of the support leg body is fixed to the front-rear extension frame and the left-right extension frame. The upper surface side of the left and right width intermediate part of the upper reinforcing frame body is fixed to the lower surface side of the left and right extending frame, and the upper surface sides of the upper and lower reinforcing frame bodies are fixed to the inner side surface of the upper end side of the left and right support legs. Therefore, with the upper ends of the left and right support legs spaced apart, the upper ends of the left and right support legs can be fixed to the lower surface of the left and right extension frames, and the left and right support legs are attached to the left and right extension frames. While it is possible to simplify the welding process work for connecting the bodies, the upper reinforcing frame body easily secures the connection rigidity of the lower surface side of the left and right extending frame and the upper end side of the left and right support legs, Left and right extended frame and left and right The coupling rigidity of the support leg body can be easily ensured.

According to the fifth aspect of the present invention, the left and right support legs include front and rear extension frames that form the traveling machine body, and the left and right support legs support the front side of the left and right track frames, respectively. Left and right rear support legs for supporting the rear side of the left and right track frames, and connecting a front reinforcing plate to the front side of the front and rear extension frames and the rear support legs, and the front and rear extension frames and the The rear reinforcing plate body is connected to the rear surface side of the rear supporting leg body, and the rear reinforcing plate body has a front-rear width dimension larger than a front-rear width dimension of the front reinforcing plate body. Although the processing shape of the support leg can be simplified and the manufacturing cost can be reduced, the supporting load of the front and rear extension frame can be easily secured.

  According to the sixth aspect of the present invention, the engine includes a Glen tank that carries grain from the threshing section via a cereal cylinder, and the exhaust pipe of the engine extends backward between the threshing section and the Glen tank. And a rear end of the exhaust pipe through the pipe support frame to the threshing tube support frame body, wherein the threshing portion supports the upper end side of the whipping tube support frame body through the whipping tube support frame body. Since the grain tank is supported so as to be deployable outwardly from the machine, it is not necessary to support the exhaust pipe at the side edge of the threshing portion, and the threshing is performed. By simplifying the upper structure of the part, the exhaust pipe support structure can be configured at a low cost, and the assembly workability of the exhaust pipe can be easily improved.

According to the seventh aspect of the present invention, a synthetic resin resonant case body that introduces fresh air into the engine through the main air cleaner and the front air cleaner and reduces intake noise generated by the introduction of fresh air. The upper horizontal frame of the upper end portion of the engine room column, and the fastening band body that is engaged with the upper horizontal frame by the engagement shaft body and the engagement hook, and the left and right sides and the rear surface of the resonance case body Since the fastening band body is wound on the side and the resonance case body is fixedly supported on the upper horizontal frame, the resonance case body can be molded at low cost, and the fresh air introduction structure of the engine can be manufactured at low cost. The resonant case body can be easily assembled by utilizing the engine room strut having a highly rigid structure for constituting the engine room in which the engine is installed. Kill.

According to an eighth aspect of the present invention, the vehicle includes a front and rear extension frame and a left and right extension frame that form the traveling machine body, and the left and right support legs support the front side of the left and right track frames. A front support leg, and left and right rear support legs that support the rear side of the left and right track frames, and the front support leg and the upper end side of the rear support leg on the front and rear extension frames and the left and right extension frames. The front reinforcing plate is connected to the front side of the front and rear extension frame and the rear support leg, and the rear reinforcing plate is connected to the rear side of the rear support leg and the rear support leg. In addition, a mudguard cover for covering the front side of the left and right extension frames is stretched between the working unit mounting frame and the front reinforcing plate on the front and rear extension frames. Farm mud is deposited on the front side of the frame To be able to eliminate the trouble can be easily reduced running resistance due to the deposition of the field mud.

It is a left view of the combine which shows 1st Embodiment of this invention. It is a right view of a combine. It is a top view of a combine. It is a left view of a traveling body. It is the elements on larger scale of FIG. It is a section explanatory view of a support leg part. It is a cross-sectional explanatory drawing of the left-right extending frame part. It is a rear view of a traveling body. It is a rear view of the traveling body which omitted the traveling crawler. It is the elements on larger scale of the back view of a traveling body. It is the same partial expanded sectional view. It is a top view of a traveling body. It is the elements on larger scale of FIG. It is the same partial expanded sectional view. It is a left view of the combine which omitted the threshing part. It is the perspective view which looked at the operation part and the Glen tank from the upper left side. It is the perspective view which looked at the operation part and the engine from the left rear. It is the perspective view which looked at the operation part and the threshing part from the right side rear. It is a bottom perspective view of a combine. It is the elements on larger scale of FIG. 19 which abbreviate | omitted the traveling crawler. It is the perspective view seen from the front lower direction in the state which omitted the traveling crawler. It is the elements on larger scale of the back view of the traveling body which shows the modification of a track frame. It is the same partial expanded sectional view. It is a perspective view which shows the supply / exhaust structure of an engine. It is an external appearance perspective view of the resonance case body in the back view. It is an external appearance perspective view of the resonance case body in front view. It is front sectional explanatory drawing of front view of a resonance case body. It is side surface explanatory drawing of the entrance side of the resonance case body by the front view. It is side surface explanatory drawing of the center part of the front view of a resonance case body. It is side surface explanatory drawing of the exit side of front view of a resonance case body. It is plane explanatory drawing of a resonance case body installation part. It is back surface explanatory drawing of a resonance case body installation part. It is a perspective view of the resonance case body installation part of the back view. It is a partial expansion perspective view of the front view of the mudguard cover body of a traveling machine body. It is a front enlarged view of a mudguard cover body. It is a side expanded sectional view of a mudguard cover body. It is a side view which shows the deformation | transformation structure of a mudguard cover body.

  DESCRIPTION OF EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings. 1 is a left side view of an ordinary combine, FIG. 2 is a right side view thereof, and FIG. 3 is a plan view thereof. First, the general structure of a general combine will be described with reference to FIGS. 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 FIGS. 1 to 3, the ordinary combine in the embodiment includes a traveling machine body 1 supported by a pair of left and right traveling crawlers 2 made of rubber crawlers as a traveling unit. At the front part of the traveling machine body 1, a mowing unit 3 for taking in unharmed cereals such as rice (or wheat, soybeans or corn) is mounted by a single-acting lifting hydraulic cylinder 4 so as to be adjustable up and down. ing.

  On the left side of the traveling machine body 1 is mounted a threshing unit 9 for threshing the harvested cereal meal supplied from the harvesting unit 3. In the lower part of the threshing unit 9, a grain sorting mechanism 10 for performing swing sorting and wind sorting is arranged. On the right side of the front part of the traveling machine body 1, a cab 5 is mounted as a driving unit on which an operator boardes. An engine 7 as a power source is disposed on the cab 5 (below the driver seat 42). Behind the cab 5 (on the right side of the traveling machine body 1), a grain tank 6 for taking the grain from the threshing unit 9 and a grain for discharging the grain in the grain tank 6 toward the truck bed (or container, etc.) A discharge conveyor 8 is arranged. The grain discharge conveyor 8 is tilted toward the outside of the machine so that the grains in the grain tank 6 are carried out by the grain discharge conveyor 8.

  The mowing unit 3 includes a feeder house 11 that communicates with the handling port 9 a at the front of the threshing unit 9, and a horizontally long bucket-shaped grain header 12 that is continuously provided at 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. A beater-feeding beater 18 (front rotor) is provided on the feed end side (handle 9a) of the supply conveyor 17. 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 89 (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 base side of the uncut grain culm is cut by the cutting blade 15. Due to the rotation drive, the harvested cereal grains 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 whole amount of the harvested cereal meal of the grain header 12 is conveyed by the supply conveyor 17 and is configured to be input to the handling port 9 a of the threshing unit 9 by the beater 18. The grain header 12 is provided with a horizontal control hydraulic cylinder (not shown) that rotates about the horizontal control fulcrum shaft, and the grain header 12 is adjusted by the horizontal control hydraulic cylinder to adjust the horizontal inclination of the grain header 12. 12, the cutting blade 15, and the take-up reel 14 can be supported horizontally with respect to the field scene.

  Moreover, as shown in FIG. 1, FIG. 3, the handling cylinder 21 is rotatably provided in the handling chamber of the threshing part 9. As shown in FIG. A handling cylinder 21 is pivotally supported on a handling cylinder shaft 20 extended in the front-rear 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 spiral screw blade-shaped intake blade 25 projects outward in the radial direction on the outer peripheral surface of the front portion of the handling cylinder 21.

  With the above-described configuration, the harvested cereal mash introduced from the handling port 9a by the beater 18 is conveyed toward the rear of the traveling machine body 1 by the rotation of the handling cylinder 21 and is, for example, between the handling cylinder 21 and the receiving net 24. Kneaded and threshed. The threshing of grains or the like smaller than the mesh of the receiving net 24 leaks from the receiving net 24. The sawdust and the like that do not leak from the receiving net 24 are discharged from the dust outlet 23 at the rear of the threshing portion 9 to the field by the conveying action of the handling cylinder 21.

  A plurality of dust feeding valves (not shown) for adjusting the conveying speed of the threshing in the threshing unit 9 handling chamber are pivotally mounted on the upper side of the handling cylinder 21. By adjusting the angle of the dust feed valve, the conveying speed (residence time) of the threshing inside the threshing section 9 can be adjusted according to the variety and properties of the harvested cereal. On the other hand, the grain sorting mechanism 10 disposed below the threshing unit 9 includes a rocking sorter 26 for specific gravity sorting having a grain pan, a chaff sheave, a grain sheave, a Strollac, and the like.

  In addition, the grain sorting mechanism 10 includes a tang fan 29 that supplies sorting wind to the swing sorter 26. 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 rocking sorter 26 and the wind sorting action of the Kara fan 29, and the grain (the most important thing such as a refined grain). In addition, it is configured so as to be selected and extracted into a mixture of grain and straw (second product such as grain with branch stems), and sawdust.

  A first conveyor mechanism 30 and a second conveyor mechanism 31 are provided on the lower side of the swing sorter 26 as the grain sorting mechanism 10. The grain (first thing) dropped from the swing sorter 26 by the sorting of the swing sorter 26 and the tang fan 29 is collected in the glen tank 6 by the first conveyor mechanism 30 and the cereal conveyor 32. The mixture of grains and straw (second product) is returned to the sorting start end side of the swing sorting plate 26 through the second conveyor mechanism 31 and the second reduction conveyor 33 and is re-sorted by the swing sorting plate 26. The The sawdust and the like are configured to be discharged from the dust outlet 23 at the rear of the traveling machine body 1 to the field.

  Furthermore, as shown in FIGS. 1 to 3, the cab 5 is provided with a side column 39, a steering column 41, and a driver seat 42 on which an operator sits. A steering lever 43 that changes the course of the traveling machine body 1 is attached to the steering column 41. The side column 39 includes an accelerator lever 40 that adjusts the rotational speed of the engine 5, a main transmission lever 44 and a sub transmission lever 45 that switch the moving speed of the traveling machine body 1, and a cutting clutch lever that drives or stops the cutting unit 3. 46 and a threshing clutch lever 47 for driving or stopping the threshing unit 9 are disposed. Further, a roof 49 for awning is attached to the upper side of the cab 5 via a sun visor support 48.

  As shown in FIGS. 1, 2, and 4, left and right track frames 50 are arranged on the lower surface side of the traveling machine body 1. The track frame 50 includes a drive sprocket 51 that transmits the power of the engine 7 to the traveling crawler 2, a tension roller 52 that maintains the tension of the traveling crawler 2, and a plurality of track rollers that hold the ground side of the traveling crawler 2 in a grounded state. 53 and an intermediate roller 54 that holds the non-grounded side of the traveling crawler 2. The driving sprocket 51 supports the front side of the traveling crawler 2, the tension roller 23 supports the rear side of the traveling crawler 2, the track roller 53 supports the grounding side of the traveling crawler 2, and the intermediate roller 54 supports the non-traveling crawler 2. It is configured to support the ground side.

  The body structure of the combine will be described with reference to FIGS. 1 to 4, 9, 12, and 19 to 21. The engine 7 is mounted on the right upper surface of the front part of the traveling machine body 1, and the mission case 63 is arranged on the front part of the traveling machine body 1 on the left side of the engine 7. The traveling machine body 1 includes left and right front and rear extension frames 64a and 64b having the same rectangular pipe shape extending in the front and rear direction, and front and rear left and right extension frames 65a and 65b having the same square pipe shape extending in the left and right direction. Prepare. The left and right front and rear extension frames 64a and 64b are fixed by welding to the left and right ends of the front and rear left and right extension frames 65a and 65b. The working unit mounting frame body 66 is fixed by welding to the upper surfaces of the left and right front and rear extending frames 64. Each part of the combine working part (the mowing part 3, the cab 5, the glen tank 6, the engine 7, and the threshing part 9) is arranged on the upper surface side of the working part mounting frame body 66. The rear side of the mission case 63 is connected to the front part of the working unit mounting frame body 66 via the mission support frame 67.

  As shown in FIGS. 4, 8, 9, and 19 to 21, a pair of left and right front support leg frames 68a and 68b and a pair of left and right rear support leg frames 69a and 69b are provided. A pair of left and right track frames 50 are connected to the traveling machine body 1 (front and rear extension frames 64a and 64b, left and right extension frames 65a and 65b) via front support leg frames 68a and 68b and rear support leg frames 69a and 69b. The traveling crawler 2 as a pair of left and right traveling units is supported by a pair of left and right track frames. As shown in FIGS. 4 and 9, the front support frame 68a, 68b includes the front left and right front support legs 71a, 71b having a divergent shape in which the left and right width dimensions on the lower end side in the longitudinal direction of the traveling machine body 1 are increased. The left and right front auxiliary support legs 72a and 72b extending along the outboard surface of the support legs 71a and 71b, the front and rear extension frames 64a and 64b, and the left and right connected to the rear side of the front support legs 71a and 71b. Front reinforcing plate bodies 73a and 73b are provided. The front end sides of the left and right track frames 2 are integrally connected to the lower side of the left and right sides of the traveling machine body 1 through the front support legs 71a and 71b, the front auxiliary support legs 72a and 72b, and the front reinforcing plate bodies 73a and 73b. Let

  As shown in FIGS. 4 and 9, left and right axle cases 74 are extended from the mission case 63 toward the outer sides of the left and right aircraft, and the left and right case bracket bodies 75 are directed forward from the front end sides of the left and right track frames 2. And the outer end portions of the left and right axle cases 74 are supported on the front end sides of the left and right case bracket bodies 75, respectively. The left and right drive sprockets 51 are arranged on the outer side ends of the left and right axle cases 74 via the left and right axles 63 a extending from the mission case 63. The lower ends of the front support legs 71a and 71b are integrally fixed to the side surface of the track frame 50 and the side surface of the case bracket body 75 by welding, and the front auxiliary support legs 72a are fixed to the flat upper surface of the case bracket body 75. , 72b are surface-bonded integrally by welding.

  On the other hand, as shown in FIGS. 4, 9, and 19 to 21, one end surface of the upper end side of the front support legs 71a and 71b is provided on the lower surface side of the front and rear extension frames 64a and 64b via the front pressure receiving frame body 77. And the upper end side end surfaces of the front auxiliary support legs 72a and 72b are fixed by welding, and the upper end sides of the front support legs 71a and 71b are fixed to the front left and right extension frames 65a by welding. Yes, the upper surface side of the middle part of the left and right width of the front upper reinforcing frame body 76 is fixed to the lower surface side of the front left and right extending frame 65a by welding, and the inner side surface on the upper end side of the left and right front support legs 71a and 71b Further, the upper surfaces of the left and right end sides of the front upper reinforcing frame body 76 are fixed by welding.

  As shown in FIGS. 4 to 8, 10 to 14, and 19 to 21, the rear support frame 69 a and 69 b are left and right like a divergent shape in which the left and right width dimension on the lower end side increases in the longitudinal direction of the traveling machine body 1. The rear support legs 81a and 81b, the left and right rear auxiliary support legs 82a and 82b extending along the outboard side surface of the rear support legs 81a and 81b, the front and rear extension frames 64a and 64b, and the rear support legs 81a and 81b. Left and right front reinforcing plate bodies 83a and 83b connected to the front side, front and rear extending frames 64a and 64b, and left and right rear reinforcing plate bodies 84a and 84b connected to the rear surface side of the rear support legs 81a and 81b are provided. The rear support frames 81a and 81b, the rear auxiliary support legs 82a and 82b, the front reinforcing plate bodies 83a and 83b, and the rear reinforcing plate bodies 84a and 84b are provided behind the left and right track frames 2 below the left and right sides of the traveling machine body 1. The end sides are connected together.

  As shown in FIGS. 4 and 13, left and right tension bracket bodies 86 are erected at the rear ends of the left and right track frames 2, and a pair of tension shafts are provided on the outer surface of the tension bracket body 86 via a tension guide body 87. The body 88 is arranged so as to be movable back and forth, and the tension roller 52 is pivotally supported on the rear end side of the tension shaft body 88, while the tension guide bolt 86 is attached to the front end of the tension shaft body 88 via a tension adjusting bolt 89. The traveling crawlers 2 are stretched with a predetermined tension. As shown in FIGS. 8, 11, and 13, the lower end sides of the rear support legs 81a and 81b are integrally fixed to the side surface of the track frame 50 and the side surface of the tension bracket body 86 by welding, and the tension bracket body 86 is also fixed. The lower end sides of the rear auxiliary support legs 82a and 82b are integrally surface-bonded to each other by welding.

  On the other hand, as shown in FIGS. 10, 11, 13, 14, and 19 to 21, the upper ends of the rear support legs 81a and 81b are disposed on the lower surface side of the front and rear extension frames 64a and 64b via the rear pressure receiving frame body 90. A part of the side end surfaces and the upper end side end surfaces of the rear auxiliary support legs 82a and 82b are fixed by welding, and the upper ends of the rear support legs 81a and 81b are fixed to the rear left and right extending frame 65b by welding. The upper surface side of the left and right width intermediate portion of the rear upper reinforcing frame body 91 is fixed to the lower surface side of the rear left and right extending frame 65b by welding, and the upper side of the left and right rear support legs 81a and 81b The upper surfaces of the left and right ends of the rear upper reinforcing frame body 91 are fixed to the side surfaces by welding. The left and right end faces of the left and right extension frames 65a and 65b are brought into contact with the inner side surfaces of the front and rear extension frames 64a and 64b, and the left and right extension faces 64a and 64b are extended to the left and below the lower surface. Of the left and right end faces of the frames 65a and 65b, the lower half side end faces are projected.

  As is clear from FIGS. 4 to 14 and FIGS. 19 to 21, the front support legs 71 a and 71 b and the rear support legs 81 a and 81 b are formed by common parts having substantially the same shape. As shown in FIGS. 4 to 7, the front support legs 71a and 71b and the rear support legs 81a and 81b are formed in a U-shaped cross-sectional end surface in a side view by press working. On the upper end side of the front support legs 71a and 71b (rear support leg bodies 81a and 81b), the lower end side (out of the left and right end parts) of the left and right side parts of the front left and right extension frame 65a (rear left and right extension frame 65b) The lower half side end) is inserted. The U-shaped upper ends of the front support legs 71a and 71b (rear support legs 81a and 81b) are fixed to the front and rear side surfaces of the front left and right extension frames 65a (rear left and right extension frames 65b) by welding.

  As shown in FIGS. 8, 9, and 19 to 21, the front upper reinforcing frame body 76 and the rear upper reinforcing frame body 91 are formed of common parts having substantially the same shape. The horizontal upper surface of the front upper reinforcing frame body 76 (rear upper reinforcing frame body 91) is fixed to the lower surface of the front left and right extending frame 65a (rear left and right extending frame 65b) by welding. Yes. Both ends of the front upper reinforcing frame body 76 (rear upper reinforcing frame body 91) are bent obliquely downward toward the outside of the machine, and the both ends of the front upper reinforcing frame body 76 (rear upper reinforcing frame body 91) are bent. The bent upper surfaces are fixed to the U-shaped lower surfaces of the front support legs 71a and 71b (rear support legs 81a and 81b) by welding.

  Further, as is apparent from FIGS. 4 to 14, the front auxiliary support legs 72a and 72b and the rear auxiliary support legs 82a and 82b are formed of common parts having substantially the same shape. Further, as shown in FIGS. 5, 13, and 14, the front and rear extending plates 64a and 64b and the front reinforcing plates 83a and 83b connected to the front side of the rear support legs 81a and 81b extend in the front-rear width dimension. The front and rear extension plates 64a and 84b, which are connected to the rear surfaces of the installation frames 64a and 64b and the rear support legs 81a and 81b, have large front and rear width dimensions, and the front and rear extension frames 64a and front and rear extensions of the rear support legs 81a and 81b are provided. The support load of 64b is increased, and the rigidity of the traveling machine body 1 can be secured while the front and rear extension frames 64a and 64b can be reduced in weight. Moreover, as is clear from FIGS. 19 to 21, the lower sides of the front and rear left and right extending frames 65 a and 65 b are largely opened, front reinforcing plate bodies 73 a and 73 b, front reinforcing plate bodies 83 a and 83 b, The rear side reinforcing plate bodies 84a and 84b block the inner surface of the traveling crawler 2 on the non-grounded side, and a space surrounded by the lower surface of the traveling body 1 and the left and right traveling crawlers 2 is formed in a tunnel shape. In other words, the soil discharged from the bottom of the left and right traveling crawler 2 toward the inside of the aircraft (surface plowing on the field, mud of wet fields) moves smoothly from the tunnel-shaped space to the rear of the aircraft and travels with the soil. The resistance is prevented from increasing and the running performance in the wet field is improved.

  With the above configuration, the U-shaped upper surface openings of the front support legs 71a and 71b (rear support legs 81a and 81b) are the front pressure receiving frame bodies 77 (rear pressure receiving frame bodies 90) on the lower surfaces of the front and rear extending frames 64a and 64b. The front left and right extended frames 65a (rear left and right extended frames 65b) and the front auxiliary support legs 72a and 72b (rear auxiliary support legs 82a and 82b) are closed. In addition, as shown in FIG. 6, the dew condensation water etc. inside the rear support legs 81a and 81b (front support legs 71a and 71b) are at the lowermost end of the rear support legs 81a and 81b (front support legs 71a and 71b). It is configured to be dropped from the drain hole 92. Further, as shown in FIG. 4, the front reinforcing plate bodies 73a and 73b and the front reinforcing plate bodies 83a and 83b are formed in substantially the same shape.

  Furthermore, as shown in FIG. 4, FIG. 9, FIG. 10 and FIG. 11, the plate thickness dimension of the steel plate for forming the front support legs 71a, 71b (rear support legs 81a, 81b) by press working, The steel plate for forming the front auxiliary support legs 72a, 72b (rear auxiliary support legs 82a, 82b) by press working is formed with a large thickness, and the front support legs 71a, 71b (rear support legs 81a, 81b) and front auxiliary support legs 72a and 72b (rear auxiliary support legs 82a and 82b), while the front support strength (rear support strength) of the traveling machine body 1 can be easily secured, It is possible to simplify the press workability of 71b (rear support legs 81a and 81b) and reduce the manufacturing cost.

  Further, the front and rear width dimensions of the front auxiliary support legs 72a and 72b (rear auxiliary support legs 82a and 82b) are made larger than the front and rear width dimensions of the front support legs 71a and 71b (rear support legs 81a and 81b). That is, the front end edges of the front auxiliary support legs 72a and 72b (rear auxiliary support legs 82a and 82b) are projected forward of the front surfaces of the front support legs 71a and 71b (rear support legs 81a and 81b), and The rear end edges of the front auxiliary support legs 72a and 72b (rear auxiliary support legs 82a and 82b) are projected behind the rear surfaces of the part support legs 71a and 71b (rear support legs 81a and 81b).

  In addition, the longitudinally cut end surface is a flat upper surface of a gate-shaped case bracket body 75 (tension bracket body 86), and the front auxiliary support legs 72a and 72b (rear auxiliary support legs 82a and 82b) whose vertical cut end faces are L-shaped. The horizontal lower end surface of is integrally surface-bonded by welding. For example, the case bracket body 75 (tension bracket) is compared to a structure in which the lower end side end surface of the front auxiliary support legs 72a and 72b (rear auxiliary support legs 82a and 82b) is welded to the case bracket body 75 (tension bracket body 86). The connection strength between the body 86) and the front auxiliary support legs 72a and 72b (rear auxiliary support legs 82a and 82b) can be easily improved.

  Further, the structure in which the lower ends of the front support legs 71a and 71b (rear support legs 81a and 81b) are welded and fixed only to the side surfaces of the track frame 50 and the case bracket body 75 (tension bracket body 86) (FIGS. 9 and 10). 11), a part of the lower end side of the front support legs 71a and 71b (rear support legs 81a and 81b) is extended to the upper surface side of the case bracket body 75 (tension bracket body 86) and fixed by welding. Compared with the structure, the shape of the front support legs 71a and 71b (rear support legs 81a and 81b) can be simplified to reduce the manufacturing cost.

  Next, with reference to FIGS. 4, 8, 9, 12, and 15 to 18, a mounting structure of the diesel engine 7 will be described. Of the upper surface of the working unit mounting frame frame 66 installed on the left and right front and rear extending frames 64a and 64b, the right and left front surfaces between the front support legs 71a and 71b and the rear support legs 81a and 81b Front engine support bracket bodies 97a and 97b and left and right rear engine support bracket bodies 98a and 98b. The engine 7 is supported by the front engine support bracket bodies 97a and 97b and the rear engine support bracket bodies 98a and 98b in an anti-vibration manner, and the output of the engine 7 is transmitted to the Kara fan shaft 29a of the threshing section 9 via the threshing drive belt 34. In addition, the output of the engine 7 is transmitted to the transmission case 63 via the travel drive belt 35.

  As shown in FIGS. 15 to 18 and FIG. 24, a silencer 111 for reducing exhaust noise of the engine 7 is provided, and the silencer 111 is installed on the upper front side of the engine 7 via a muffler support bracket 112. The air supply port of the silencer 111 is connected to the exhaust manifold of the engine 7 via the turbine (not shown) of the supercharger 116, and one end side of the tail pipe 115 is connected to the exhaust port pipe 113 of the silencer 111. The tail pipe 115 is formed in a double pipe structure by inserting the inner exhaust pipe 114b into the outer exhaust pipe 114a. The inner exhaust pipe 114b is formed to have a larger diameter than the exhaust pipe 113, and the exhaust gas discharged from the exhaust pipe 113 toward the tail pipe 115 is connected at the connection portion between the exhaust pipe 113 and the inner exhaust pipe 114b. The outside air is mixed.

  As shown in FIGS. 1, 3, and 15 to 18, a tail pipe 115 is extended in the front-rear direction of the traveling machine body 1 between the threshing unit 9 in which the whipping conveyor 32 is disposed and the grain tank 6, and the engine 7 The upper silencer 111 is connected to the front end side of the tail pipe 115 (inner exhaust pipe 114b), and the rear end of the tail pipe 115 is opened rearward and obliquely upward at the rear of the upper part of the Glen tank 6, so that the threshing part The exhaust gas from the engine 7 is discharged from the rear end of the tail pipe 115 (inner exhaust pipe 114b) between the rear tank 9 and the Glen tank 6 toward the upper rear side of the Glen tank 6.

  17 and 18, the front support frame body 221 is fastened and fixed to the right machine casing 9b of the threshing section 9, and the tail pipe 115 (outside) is connected to the front support frame body 121 via the front support bracket body 122. The front end side of the exhaust pipe 114a) is connected and supported. Moreover, the tank support frame body 123 which locks the grain tank 6 which can be expand | deployed in the machine outer side to a grain collection position (machine body storage position), and the cereal support frame body 124 which supports the erection conveyor 32 standingly are provided. . The tank support frame body 123 and the cereal support frame body 124 are fastened and fixed to the machine casing 9c above the right machine casing 9b of the threshing unit 9, respectively. The tank support frame body 123 is connected to the front and rear intermediate portions of the tail pipe 115 (outer exhaust pipe 114a) via the intermediate support bracket body 125, and the tailpipe is supported by the cereal support frame body 124 via the rear support bracket body 126. The rear end side of 115 (outer exhaust pipe 114a) is connected and supported. An intermediate portion or a rear end portion of the tail pipe 115 is extended in the longitudinal direction of the machine body along the right outer surface (the right machine housing 9b and the machine housing frame body 9c) of the threshing unit 9.

  As shown in FIGS. 15 to 18 and FIGS. 31 to 33, the front end portion of the tail pipe 115 is lowered forward toward the silencer 111 below the rear portion of the side column 39 where the reaping clutch lever 46 or the threshing clutch lever 47 is disposed. A heat insulating cover body 127 that extends to the posture and covers the front side of the front lower end of the tail pipe 115 is provided, and the inclined lower end side of the heat insulating cover body 127 is fastened and fixed to the rear portion of the side column 39. 39 The inclined upper end side of the heat shield cover body 127 protrudes obliquely upward at the rear, and the front lower end of the tail pipe 115 is shielded by the heat shield cover body 127 with respect to the driver seat 42 on the right side of the side column 39. The heat shield cover 127 prevents the hot air on the tail pipe 115 side from moving toward the operator of the driver seat 42. The heat insulating cover body 127 includes an inner cover 127a and an outer cover 127b. The inner cover 127a is opposed to the tail pipe 115, and the inner cover 127a is interposed between the tail pipe 115 and the outer cover 127b. The cover 127b is configured to be kept at a relatively low temperature.

  As shown in FIG. 15 to FIG. 18 and FIG. 31 to FIG. 33, a grain tank 6 for carrying grains from the threshing section 9 via a cereal conveyor 32 as a cereal cylinder is provided, and between the threshing section 9 and the grain tank 6. The tail pipe 115 as an exhaust pipe of the engine 7 is extended backward, and the threshing portion 9 supports the upper end side of the whipping conveyor 32 via the whipping tube support frame body 124. Since the rear end side of the tail pipe 115 is supported by the grain support frame body 124 via the rear support bracket 126 as a pipe support frame, the structure in which the Glen tank 6 is supported so as to be deployable to the outside of the machine. Even so, there is no need to support the tail pipe 115 on the side edge of the threshing portion 9, the upper structure of the threshing portion 9 is simplified, and the support structure of the tail pipe 115 can be configured at low cost. Rutotomoni and assembling workability of the tail pipe 115 can be easily improved.

  Further, as shown in FIGS. 1, 3, 15 to 18, and 24, a main air cleaner 131 that introduces fresh air (outside air) to the intake manifold of the engine 7 via a compressor (not shown) of the supercharger 116. And a front air cleaner 132. A main air cleaner 131 is placed on the upper surface of the engine room housing 133 in which the engine 7 is installed on the rear surface of the driver seat 42 via a cleaner support 134, and the main air cleaner 131 is mounted on the supercharger 116 of the engine 7. The main intake pipe 131a is connected. Further, the front support frame 135 is erected on the right upper surface of the threshing unit 9, and the front air cleaner 132 body is fixed to the front support frame 135 via the front support bracket 136, and The front intake pipe 132a of the front air cleaner 132 is fixed to the outer side surface of the grain discharge case 32a via the pipe bracket body 137, and the upper surface of the grain tank 6 is located between the upper right part of the threshing part 9 and the upper left part of the grain tank 6. The front air cleaner 132 is detachably supported via the front support frame 135 and the piping bracket body 137 at a higher position.

  In addition, a resonance case body 141 that reduces intake noise generated when fresh air (outside air) is introduced via the main air cleaner 131 and the front air cleaner 132 is provided. The resonance case body 141 is formed by molding a synthetic resin material. The resonance case body 141 is placed on the left engine room column 143 on the left side of the engine room in which the engine 7 is installed via the resonance case base 144. An upper end portion of the left engine room column 143 and the right engine room column 145 is connected by the upper horizontal frame 146, and a fastening band body 149 that is engaged with the upper horizontal frame 146 by the engagement shaft body 147 and the engagement hook 148. The fastening band body 149 is wound around the left and right sides and the rear surface side of the resonance case body 141, and the upper and lower intermediate portions of the resonance case body 141 are fixedly supported by the upper horizontal frame 146.

  Further, the resonance inlet pipe 141a of the resonance case body 141 is connected to the front intake pipe 132a via the intake pipe 142, and the resonance outlet pipe 141b of the resonance case body 141 is connected to the fresh air inlet side of the main air cleaner 131. Yes. That is, the fresh air (outside air) taken into the front air cleaner 132 is moved to the resonance case body 141 via the intake pipe 142 and the intake sound is attenuated by the resonance case body 141 while the resonance case body 141 attenuates the intake sound. Fresh air (outside air) is moved to the air cleaner 131 so that fresh air (outside air) is supplied from the main air cleaner 131 to the engine 7.

  Next, a modified structure of the track frame 50 and the rear support leg frames 69a and 69b (front support leg frames 68a and 68b) will be described with reference to FIGS. As shown in FIGS. 22 and 23, the track frame 50 includes an upper track frame 50a and a lower track frame 50b. The upper surface of the lower track frame 50b is integrated with the lower surface of the upper track frame 50a by welding. The track frame 50 is configured to be fixed to the track frame 50. Further, in the structure in which the rear pressure receiving frame body 90 (front pressure receiving frame body 77) is omitted, the upper end side of the rear support legs 81a and 81b (front support legs 71a and 71b) on the lower surface side of the front and rear extension frames 64a and 64b. A part of this is brought into direct contact and is integrally fixed by welding.

  In addition, as shown in FIGS. 22 and 23, the upper end sides of the rear auxiliary support legs 82a and 82b (front auxiliary support legs 72a and 72b) are directly applied to the outer side surfaces of the front and rear extending frames 64a and 64b. They are in contact with each other and fixed together by welding. That is, the upper half of the left and right end surfaces of the left and right extension frames 65a and 65b and the inner side surface of the rear auxiliary support legs 82a and 82b (front auxiliary support legs 72a and 72b) on the left and right sides of the front and rear extension frames 64a and 64b. It is in contact with the lower half of the side surface, and the front and rear extension frames 64a at the left and right ends of the left and right extension frames 65a and 65b and the upper ends of the rear auxiliary support legs 82a and 82b (front auxiliary support legs 72a and 72b). , 64b is sandwiched and fixed.

  As shown in FIG. 1 to FIG. 14, a traveling machine body 1 having a traveling crawler 2 and a driving seat 42 as a traveling unit, a cutting unit 3 having a cutting blade 15, a threshing unit 9 having a handling cylinder 21, and a cutting unit 3. In the combine provided with the engine 7 for driving the threshing unit 9 and the like, the left and right support legs 71a, 71b or 81a, 81b having a widening width at the lower end side when the traveling machine body 1 is viewed in the front-rear direction, and the support legs 71a , 71b or 81a, 81b and left and right auxiliary support legs 72a, 72b or 82a, 82b extending along the outer surface of the machine, and the left and right support legs 71a, 71b or 81a, 81b below the left and right sides of the traveling machine body 1. And the left and right track frames 50 are connected to the left and right track frames 50 via auxiliary support legs 72a and 72b or 82a and 82b. 2, a case bracket body 75 or a tension bracket body 86 as a support leg bracket body is provided on the upper surface side of the track frame 50, and the side surface of the track frame 50 and the side surface of the case bracket body 75 or the tension bracket body 86 are provided. The lower ends of the support legs 71a, 71b or 81a, 81b are integrally fixed to each other, and the lower ends of the auxiliary support legs 72a, 72b or 82a, 82b are integrally formed on the flat upper surface of the support leg bracket body 75 or 86. Crimped. Accordingly, the fixing of the side surface of the track frame 50 and the side surface of the case bracket body 75 or the tension bracket body 86 and the lower end side of the support legs 71a, 71b or 81a, 81b can mainly cope with the deformation force in the left-right direction. By fixing the flat upper surface of the case bracket body 75 or the tension bracket body 86 to the lower end side of the auxiliary support legs 72a, 72b or 82a, 82b, it is possible to deal mainly with the vertical deformation force, The connecting portion at the lower end side of the track frame 50 and the support legs 71a, 71b or 81a, 81b can be easily reinforced by the auxiliary support legs 72a, 72b or 82a, 82b. That is, the connection strength between the track frame 50 and the lower ends of the support legs 71a, 71b or 81a, 81b can be easily ensured, and the connection rigidity between the traveling machine body 1 and the track frame 50 can be easily ensured, and the support legs 71a, 71b or 81a. , 81b, such as sheet metal processing, can be reduced, and the supporting legs 71a, 71b or 81a, 81b can be reduced in weight.

  As shown in FIGS. 4 to 14, the structure is such that the front and rear width dimensions of the auxiliary support legs 72a and 72b or 82a and 82b are larger than the front and rear width dimensions of the support legs 71a and 71b or 81a and 81b. 75 or the lower end side of the auxiliary support legs 72a, 72b or 82a, 82b is surface-bonded to the flat upper surface of the tension bracket body 86. Therefore, compared with the structure in which the lower end surface of the conventional auxiliary support legs 72a, 72b or 82a, 82b is joined to the track frame 50, the connection strength between the track frame 50 and the lower ends of the auxiliary support legs 72a, 72b or 82a, 82b is easy. Can be secured. For example, the support legs 71a, 71b or 81a, 81b are manufactured by sheet metal processing in which the cross-sectional end surfaces of the support legs 71a, 71b or 81a, 81b are formed in a U shape, and the support legs 71a, 71b or 81a, 81b are manufactured. In the structure in which the upper surface side (U-shaped opening) is closed by auxiliary support legs 72a, 72b or 82a, 82b to form a cylindrical shape, the auxiliary support legs 72a are made of a steel rigid plate material that is thicker than before. , 72b or 82a, 82b, the rigidity of the connecting portion between the track frame 50 and the lower ends of the support legs 71a, 71b or 81a, 81b can be easily improved by the auxiliary support legs 72a, 72b or 82a, 82b. Since it is not necessary to form the support legs 71a, 71b or 81a, 81b using a thick steel rigid plate material, the support legs 71a, 71b or 81a, 81b can be easily reduced in weight or cost. .

  As shown in FIGS. 4-14, it is the structure provided with the front-back extension frames 64a and 64b which form the traveling body 1, Comprising: The supporting leg is attached to the lower surface side of the front-back extension frames 64a and 64b via the pressure receiving frame body 77 or 90. A part of the upper end side end surface of the bodies 71a, 71b or 81a, 81b and the upper end side end surfaces of the auxiliary support leg bodies 72a, 72b or 82a, 82b are fixed. Therefore, the lower surface side of the pressure receiving frame body 77 or 90 is fixed to a part of the upper end side end face of the support leg 71a, 71b or 81a, 81b and the upper end end face of the auxiliary support leg 72a, 72b or 82a, 82b by welding. Later, the pressure receiving frame body 77 or 90 is fixed to the front and rear extension frames 64a and 64b by welding, and the lower end side of the front and rear extension frames 64a and 64b is attached to the upper end side of the support legs 71a and 71b or 81a and 81b. A part and the upper end sides of the auxiliary support legs 72a, 72b or 82a, 82b can be connected, and the welding workability can be improved. For example, after welding the lower end side of the support legs 71a, 71b or 81a, 81b and the lower end side of the auxiliary support legs 72a, 72b or 82a, 82b to the upper surface side of the track frame 50, the lower surfaces of the front and rear extension frames 64a, 64b The pressure receiving frame body 77 or 90 can be welded to the side, and the upper end side of the supporting leg bodies 71a, 71b or 81a, 81b and the upper end side of the auxiliary supporting leg bodies 72a, 72b or 82a, 82b are connected to the lower surface side of the longitudinally extending frames 64a, 64b. Welding work for connecting them can be simplified.

  As shown in FIGS. 4 to 14, front and rear extending frames 64 a and 64 b and left and right extending frames 65 a and 65 b forming the traveling machine body 1 are provided, and the front and rear extending frames 64 a and 64 b and the left and right extending frames 65 a and 65 b are supported by the support legs. The upper end side of the body 71a, 71b or 81a, 81b is fixed, and the upper surface side of the middle portion of the left and right width of the upper reinforcing frame body 76 or 91 is fixed to the lower surface side of the left and right extending frames 65a, 65b. The upper side of the left and right ends of the upper reinforcing frame body 76 or 91 are fixed to the inner side surface of the upper end side of the support legs 71a, 71b or 81a, 81b. Therefore, with the upper ends of the left and right support legs 71a, 71b or 81a, 81b spaced apart, the upper ends of the left and right support legs 71a, 71b or 81a, 81b are fixed to the lower surfaces of the left and right extending frames 65a, 65b. It is possible to simplify the welding work for connecting the left and right support legs 71a, 71b or 81a, 81b to the left and right extending frames 65a, 65b. The connection rigidity on the upper end side of the support legs 71a, 71b or 81a, 81b is easily secured by the upper reinforcing frame body 76 or 91, and the left and right extending frames 65a, 65b and the left and right support legs 71a, 71b or 81a, The connection rigidity of 81b can be easily secured.

  As shown in FIGS. 4 to 14, front and rear extending frames 64 a and 64 b forming the traveling machine body 1 are provided, and front reinforcing plate bodies 83 a and 83 b are provided on the front sides of the front and rear extending frames 64 a and 64 b and the rear support legs 81 a and 81 b. And the rear reinforcing plate bodies 84a and 84b are connected to the rear surfaces of the front and rear extending frames 64a and 64b and the rear support legs 81a and 81b, respectively, and the front and rear width dimensions of the front reinforcing plate bodies 83a and 83b. Since the front and rear width dimensions of the rear reinforcing plate bodies 84a and 84b are larger than those of the rear side reinforcing plate bodies 84a and 84b, the processing shapes of the rear support legs 81a and 81b can be simplified to reduce the manufacturing cost. The supporting load of the frames 64a and 64b can be easily secured.

  Next, an engine air supply / exhaust structure will be described with reference to FIGS. As shown in FIGS. 24 and 31 to 33, a band cover 151 made of elastic rubber is covered and attached to a fastening band body 149 made of iron plate. An engagement hook 148 is provided on one end side of the fastening band body 149, the engagement hook 148 is locked to the engagement shaft body 147 on the upper right side of the upper horizontal frame 146, and a fastening bolt is attached to the other end side of the fastening band body 149. 150, and the other end side of the fastening band body 149 is fastened and fixed to the engagement bracket body 146 a on the upper left side of the upper horizontal frame 146 via the fastening bolt 150. The fastening band body 149 is pressure-bonded to the left and right corners and the rear surface side of the resonance case body 141 through the band cover 151 for preventing slip. The space between the engagement shaft body 147 on the upper surface of the upper horizontal frame 146 and the engagement bracket body 146a (fastening bolt 150 screwed portion) is formed larger than the horizontal width dimension of the resonance case body 141. It is configured to be able to absorb errors in assembly dimensions in the left-right direction of this machine.

  In addition, the mounting bracket 152 is fixed to the left engine compartment column 143, and the resonance case body 141 is mounted on the upper surface of the mounting bracket 152 via a cushion rubber body 153 capable of absorbing an assembly size error in the vertical direction of the machine. Place the bottom. A cushion rubber body 154 is fixed to the back surface of the upper horizontal frame 146, and a contact plate body 155 is erected on the upper surface of the upper horizontal frame 146, and the cushion rubber body 156 is fixed to the contact plate body 155. The back surface of the upper horizontal frame 146 and the back surface of the contact plate body 155 are brought into contact with the front surface of the resonance case body 141 on the mounting bracket 152 via cushion rubber bodies 153 and 156 capable of absorbing the assembly dimension error in the longitudinal direction of the machine. Make contact. An air cleaner mounting base 157 is provided on the engine room upper surface plate 158 in which the engine 7 is installed, and the main air cleaner 131 is supported by the air cleaner mounting base 157.

  As shown in FIGS. 24 and 31 to 33, the fresh air (outside air) is introduced into the engine 7 through the main air cleaner 131 and the front air cleaner 132, and the intake noise generated by the introduction of the fresh air is reduced. It is a structure provided with a resin-made resonance case body 141, and is fastened to be locked to the upper horizontal frame 146 by the upper horizontal frame 146 at the upper end of the engine room columns 143 and 145, the engagement shaft body 147 and the engagement hook 148. Since the band body 149 is provided, the fastening band body 149 is wound around the left and right sides and the rear surface side of the resonance case body 141, and the resonance case body 141 is fixedly supported on the upper horizontal frame 146. Therefore, the resonance case body 141 is provided. Can be formed at low cost, and the fresh air introduction structure of the engine 7 can be configured at a low cost, and the engine room in which the engine 7 is installed is configured. By utilizing engine struts 143 and 145 of the rigid structures of the eye, it is possible to assemble the resonator casing 141 easily.

  As shown in FIGS. 31 to 33, a grain discharge lever 161 for turning on and off the drive of the grain discharge conveyor 8 (conveyor clutch on / off operation) is provided. A fulcrum bracket body 163 provided with a lever fulcrum shaft body 162 and a lever guide plate body 165 provided with a lever guide groove 164 are arranged on the front surface behind the driver seat 42 in the front surface of the Glen tank 6. The lower end side of the grain discharge lever 161 is pivotally supported by the lever fulcrum shaft body 162, and the grain discharge lever 161 is tilted back and forth by the guide of the lever guide groove 164 that is long in the front-rear direction. Further, the grain discharge lever 161 is supported on the right side of the resonance case body 141 so that the operator can operate the grain discharge lever 161 from the driver seat 42 side.

  The drive output of the engine 7 is transmitted to the grain discharge conveyor 8 via a tension pulley-like conveyor clutch and a conveyor drive belt. The grain discharge lever 161 is connected to the grain discharge lever 161 via the clutch operation rod 166. Connect the conveyor clutch. The conveyor clutch is turned on and off by tilting the grain discharge lever 161 back and forth, and the grain discharge conveyor 8 is driven by the output of the engine 7.

  In addition, as shown in FIGS. 24 to 30, the resonance case body 141 made of a synthetic resin having a square box outer shape includes a left chamber 171 having a left half volume of the resonance case body 141, and a resonance case body 141. A right chamber 172 having a right half volume and a communication passage 173 communicating with the left chamber 171 through the right chamber 172. Fastening grooves 171 a and 172 a are formed in the middle portions of the upper and lower widths of the rear surfaces of the left chamber 171 and the right chamber 172, and the middle portion of the fastening band body 149 is fitted into the fastening grooves 171 a and 172 a. The intermediate part of the fastening band body 149 is wound around.

  A resonance inlet pipe 141a is projected upward on the upper surface of the left chamber 171, and outside air (fresh air) is introduced into the left chamber 171 from above, and an intermediate portion of the vertical width (the fastening groove 171a of the fastening groove 171a) is provided on the rear surface of the left chamber 171. A horizontal step portion 171b is provided on the lower side, and the front-rear width dimension of the lower half of the left chamber 171 is formed smaller than the front-rear width dimension of the upper half of the left chamber 171. That is, the lower half volume of the left chamber 171 is formed smaller than the upper half volume of the left chamber 171 (see FIGS. 25 and 28).

  Also, as shown in FIG. 29, the left and right ends of the communication path 173 are connected to the right side surface of the middle portion of the left and right width of the left chamber 171 and the left side surface of the middle portion of the right and left width of the right chamber 172. The communication path 173 is formed by a pipe body 174 having an end surface that is trapezoidal. The front-rear width dimension of the pipe body 174 is made smaller than the front-rear width dimension of the upper-lower width intermediate part of the left chamber 171 and the right chamber 172 and the front surface of the intermediate part of the upper-lower width of the left chamber 171 and the right chamber 172 and the pipe body 174 The front surface of the vertical front wall 174a is substantially flush. The vertical width dimension of the vertical rear wall 174b of the pipe body 174 is formed larger than the vertical width dimension of the vertical front wall 174a of the pipe body 174. That is, the flow resistance of the outside air (fresh air) moving from the upper half of the left chamber 171 to the middle portion of the right and left width of the right chamber 172 via the vertical rear wall 174b (rear part of the communication passage 173) is The wall 174a side) is configured to be smaller than the flow resistance. The outside air (fresh air) flows smoothly from the left chamber 171 toward the right chamber 172 through the communication passage 173 formed so as to be offset toward the front side of the left chamber 171 and the right chamber 172.

  Further, as shown in FIGS. 25 and 30, a resonance outlet pipe 141b is projected forward on the lower front surface of the right chamber 172, and an inclined step portion 172b is provided on the lower rear surface of the right chamber 172 facing the resonance outlet pipe 141b. The outside air (fresh air) moving from the right end of the communication path 173 toward the inside of the right chamber 172 is configured to expand smoothly. That is, when outside air (fresh air) moves from the resonance inlet pipe 141 a of the left chamber 171 to the resonance outlet pipe 141 b of the right chamber 172, the intake sound is attenuated inside the left chamber 171 or the right chamber 172 and directed toward the main air cleaner 131. The outside air (fresh air) inside the right chamber 172 is moved. In addition, an inclined corner portion 172c is provided at the upper right corner of the right chamber 172, and the right upper corner of the resonance case body 141 is cut into a shape that is cut, and the grain installed on the right side of the resonance case body 141. The operation space of the grain discharge lever 161 is ensured widely, and the operability of the grain discharge lever 161 is improved.

  Next, as is apparent from FIGS. 34 to 37, front and rear extending frames 64a and 64b and left and right extending frames 65a and 65b forming the traveling machine body 1 are provided, and the front and rear extending frames 64a and 64b and the left and right extending frames 65a are provided. , 65b are fixed to the upper ends of the support legs 81a, 81b (71a, 71b), and the front reinforcing plates 83a, 83b are arranged on the front sides of the front and rear extension frames 64a, 64b and the support legs 81a, 81b (71a, 71b). And the rear reinforcing plate bodies 84a and 84b are connected to the rear surface sides of the front and rear extension frames 64a and 64b and the rear support legs 81a and 81b (71a and 71b). A mudguard for covering the front side of the left and right extending frames 65a and 65b between the upper working unit mounting frame 66 and the front reinforcing plates 83a and 83b. Because those were stretched to over body 85, left and right extended frame 65a, 65b on the front side it can be eliminated the problem that the field of mud is deposited can be easily reduced running resistance due to the deposition of the field mud.

  As shown in FIGS. 34 to 37, the mudguard cover body 85 includes a center cover 181 that fastens and fixes the upper and lower ends to the left and right extending frame 65b and the working unit mounting frame frame 66, and one end side that is fastened and fixed to the center cover 181. Left and right side covers 182 are provided. A space between the left and right extending frame 65b and the working unit mounting frame body 66 is closed by a central cover 181. The other ends of the left and right side covers 182 are fastened and fixed to the front reinforcing plates 83a and 83b, and the space between the left and right ends of the front reinforcing plates 83a and 83b and the central cover 181 is closed by the left and right side covers 182. Yes. That is, the center cover 181 and the left and right side covers 182 are extended between the front and rear extension frames 64a and 64b, the left and right extension frames 65a and 65b (working unit mounting frame frame body 66), and the front reinforcing plates 83a and 83b. The center cover 181 and the left and right side covers 182 form a tunnel-shaped space in front view, and the mud in the field that enters between the left and right rear support legs 81a and 81b on the lower side of the working unit mounting frame frame 66 is The mudguard cover body 85 is configured to smoothly move to the rear side by guidance.

1 traveling machine body 2 traveling crawler (traveling section)
3 Cutting part 7 Engine 9 Threshing part 15 Cutting blade 21 Handling cylinder 42 Driver's seat 50 Truck frame 64a Left front and rear extension frame 64b Right front and rear extension frame 65a Front left and right extension frame 65b Rear left and right extension frame 71a Left Front support leg 71b right front support leg 72a left front auxiliary support leg 72b right front auxiliary support leg 75 case bracket body (support leg bracket body)
76 Front upper reinforcement frame body 77 Front pressure receiving frame body 81a Left rear support leg body 81b Right rear support leg body 82a Left rear auxiliary support leg body 82b Right rear auxiliary support leg body 83a Left front reinforcement plate body 83b Right front side Reinforcing plate body 84a Left rear reinforcing plate body 84b Right rear reinforcing plate body 85 Mudguard cover body 86 Tension bracket body (support bracket body)
90 Rear pressure receiving frame body 91 Rear upper reinforcing frame body 115 Tail pipe (exhaust pipe)
124 Grain support frame body 126 Rear support bracket body (pipe support frame)
131 Main Air Cleaner 132 Pre-Air Cleaner 141 Resonant Case Body 143 Left Engine Room Strut 145 Right Engine Room Strut 146 Upper Horizontal Frame 147 Engagement Shaft Body 148 Engagement Hook 149 Fastening Band Body

Claims (8)

In a combine comprising a traveling machine body having a traveling part and a driver's seat, a cutting part having a cutting blade, a threshing part having a handling drum, and an engine for driving the cutting part and the threshing part ,
The left and right support legs that have a widening width at the lower end side in the longitudinal direction of the traveling machine body, and left and right auxiliary support legs that extend along the outer surface of the machine body, The left and right track frames are connected to the left and right support legs via the left and right support legs and auxiliary support legs, and the left and right track frames are supported by the left and right track frames,
A support leg bracket body is provided on an upper surface side of the track frame, and a lower end side of the support leg body is integrally fixed to a side surface of the track frame and a side surface of the support leg bracket body, and the auxiliary surface is fixed to a flat upper surface of the support leg bracket body. A combine characterized in that the lower end side of the support leg is integrally surface-bonded.   A structure in which the front-rear width dimension of the auxiliary support leg body is formed larger than the front-rear width dimension of the support leg body, and the lower end side of the auxiliary support leg body is surface-crimped to the flat upper surface of the support leg bracket body. The combine according to claim 1.   A structure including a front and rear extension frame forming the traveling machine body, wherein a part of an upper end side end surface of the support leg body and an upper end side end face of the auxiliary support leg body are provided on a lower surface side of the front and rear extension frame via a pressure receiving frame body. The combine according to claim 1, which is fixed.   The structure includes a front-rear extension frame and a left-right extension frame that form the traveling machine body, and the upper end side of the support leg is fixed to the front-rear extension frame and the left-right extension frame, on the lower surface side of the left-right extension frame. The upper surface side of the middle part of the left and right width of the upper reinforcing frame body is fixed, and the upper surface sides of the left and right ends of the upper reinforcing frame body are fixed to the inner side surface of the upper end side of the left and right support legs. Combine. The frame includes a front-rear extending frame that forms the traveling machine body, and the left and right support legs support left and right front support legs that support the front side of the left and right track frames, and the rear side of the left and right track frames. And a front reinforcing plate connected to the front side of the front and rear extending frame and the rear supporting leg, and a rear reinforcing plate on the rear side of the rear extending frame and the rear supporting leg. The combine according to claim 1, wherein the combiner is configured to connect the bodies, and the front and rear width dimension of the rear reinforcing plate body is formed larger than the front and rear width dimension of the front reinforcing plate body.   A grain tank for carrying grains from the threshing part via a whipping cylinder is provided, and an exhaust pipe of the engine is extended backward between the threshing part and the grain tank, and the threshing part support frame is provided on the threshing part. It is a structure which supports the upper end side of the said whipping cylinder through a body, Comprising: The rear end side of the said exhaust pipe was supported by the said whipping cylinder support frame body through the pipe support frame. Item 1. A combine according to item 1. A structure is provided with a synthetic resin resonant case body that introduces fresh air into the engine via a main air cleaner and a front air cleaner, and reduces intake noise generated by the introduction of fresh air, and has an upper end of an engine room column. An upper horizontal frame of the part, and a fastening band body that is engaged with the upper horizontal frame by an engagement shaft body and an engagement hook, and the fastening band body is wound around the left and right sides and the rear surface side of the resonance case body, The combine according to claim 1, wherein a resonance case body is fixedly supported on the upper horizontal frame. The vehicle includes a front and rear extension frame and a left and right extension frame that form the traveling machine body, and the left and right support legs include left and right front support legs that support the front side of the left and right track frames, and the left and right track frames. and a rear-side left and right of the rear support leg for supporting the, along with securing the upper end of the right and left extension frame and extending frame longitudinal front support leg member and said rear support legs body, and extending the frame back and forth the The front reinforcing plate is connected to the front side of the rear support leg, and the front and rear extension frame is connected to the rear reinforcing plate on the rear side of the rear support leg, and the working unit is mounted on the front and rear extension frame. The combine according to claim 1, wherein a mudguard cover body for covering the front side of the left and right extending frame is stretched between the frame frame body and the front reinforcing plate body.

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