KR20160102155A - Combine - Google Patents

Abstract

The exhaust gas purifying case 50 is disposed at a position as close as possible to the engine 20 and the width of the left side and the right side of the engine 20 and its surrounding structure is not made long but compact. The combine according to the present invention comprises a cutting device 3 for taking an uncut cut of a package, a tumbling device 5 for tumbling the cut trench cut by the cutting device 3, An engine 20 disposed in an engine room 43 on the traveling base 1 and an exhaust gas purifying case disposed in an exhaust system of the engine 20 50). An air cleaner 49 for purifying the air to the engine 20 and an exhaust gas purifying case 50 are disposed above the engine 20 and the exhaust gas purifying case 50, Direction and a parallel shape.

Description

Combine {COMBINE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a combine for harvesting grains by pruning a cut-out portion of a wrapping machine by using a tipping device while cutting off a rough cut portion of the wrapping by a cutting device, And the like.

In the conventional combine, an exhaust gas purifying case is disposed by projecting a part of the exhaust gas purifying case on the side of a cutting device provided so as to be able to ascend and descend on the front side of the traveling gas and biasing the exhaust gas purifying case near the cutting device 1). Further, the engine room top plate is formed in a shape having an end, and the exhaust gas purifying case is disposed at a position higher than the lower portion of the driver's seat (see, for example, Patent Document 2).

Japanese Patent Application Laid-Open No. 2013-1 Japanese Patent Application Laid-Open No. 2013-2

However, since the combine is provided with various devices such as a cutting device and a threshing device, an engine room is formed below the operation part in the right side room of the cutting device, and the engine is mounted in the engine room. In recent years, there have been many cases where the size of the engine room is limited due to the request for compactness and light weight of the combine (often the engine mounting space is small). In the engine room with many restrictions, various components such as an air cleaner and a radiator are disposed in addition to the engine.

On the other hand, the longer the piping length of the exhaust system from the engine to the exhaust gas purifying case becomes, the lower the temperature of the exhaust gas when reaching the exhaust gas purifying case naturally decreases. Since the temperature of the exhaust gas passing through the exhaust gas purifying case is preferably higher than the predetermined temperature, there is a demand to place the exhaust gas purifying case at a position as close as possible to the engine.

On the basis of these points, in the above-described prior art, a part of the exhaust gas purifying case is made to bend near the cut-off device and slightly protruded from the engine room for the purpose of disposing the exhaust gas purifying case as close as possible to the engine. In this case, the engine itself is also disposed near the cutting device to secure the mounting position of the exhaust gas purifying case on the upper surface side of the engine. Then, since the exhaust gas purifying case and a part of the engine protrude from the engine room, there is a problem that the left and right width dimensions of the engine and its surrounding structure become long, and furthermore, it is difficult to easily make the left and right width dimensions of the traveling gas compact .

Further, when the exhaust gas purifying case is attached to the engine, the engine vibration may be directly transmitted to the exhaust gas purifying case. Further, since the exhaust gas purifying case is different from the muffler, It is necessary to strengthen the supporting structure. Further, the engine vibration transmitted through the exhaust gas purifying case is transmitted to the exhaust outlet pipe connected to the exhaust gas purifying case and the tail pipe connected to the exhaust outlet pipe. Therefore, consideration also needs to be given to the support structure of the tail pipe or the exhaust outlet pipe.

When attaching the exhaust gas purifying case to the engine, an exhaust outlet pipe communicating with the exhaust gas purifying case in the engine room, a cooling water supply pipe and a cooling water return pipe connecting the radiator and the engine, The engine, the exhaust gas purifying case and the exhaust outlet pipe are heated to a high temperature by driving. Therefore, it is necessary to consider the arrangement of the pipes in a narrow engine room so that the piping of the cooling water supply pipe, the cooling water return pipe, the gas supply pipe, etc. do not come into direct contact with the high temperature part of the engine or the like.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and provides a combine which is improved.

According to a first aspect of the present invention, there is provided a cutting machine comprising: a cutting device for taking an uncut cutaway of a package; a trolley for tilting the cut trench cut by the cutting device; a traveling vehicle on which the cutting device and the trolley are mounted; A combine comprising: an engine disposed in a gas-phase engine room; and an exhaust gas purifying case disposed in an exhaust system of the engine, wherein the combiner includes an air cleaner for purifying air to the engine, Is arranged so as to extend in parallel with the axial direction of the output shaft of the engine when viewed in plan view.

According to a second aspect of the present invention, in the combine according to the first aspect, the intake manifold and the exhaust manifold are disposed on both sides of the engine with the output shaft interposed therebetween, An EGR device for disposing a supercharger for supercharging the air and disposing the exhaust gas purifying case above the supercharger and refluxing exhaust gas to the intake system of the engine above the intake manifold is disposed, And the air cleaner is disposed above the apparatus.

According to a third aspect of the present invention, in the combine according to the second aspect, the cooling fan is disposed on one side of the engine that intersects with the output shaft, a flywheel is disposed on the other side opposite to the one side crossing the output shaft, The exhaust inlet side of the exhaust gas purifying case is positioned near the flywheel and the exhaust outlet side of the exhaust gas purifying case is positioned near the cooling fan.

According to a fourth aspect of the invention, there is provided the combine according to the first aspect, further comprising: an exhaust outlet pipe communicating with the exhaust gas purifying case; and a tail pipe communicating with the exhaust outlet pipe, wherein the exhaust gas purifying case is supported And the exhaust outlet pipe is connected to the support leg body.

According to a fifth aspect of the present invention, in the combine according to the fourth aspect of the present invention, the exhaust gas purifying case and the exhaust outlet pipe are arranged above the engine so as to extend in parallel with the axial direction of the output shaft of the engine, And the exhaust outlet pipe is fastened to the support leg body so as to adjust the position of the exhaust outlet pipe with respect to the exhaust gas purifying case.

According to a sixth aspect of the present invention, in the combine according to the fourth or fifth aspect, a cooling fan is disposed on one side of the engine that intersects with the output shaft, and a flywheel is disposed on the other side opposite to the one side crossing the output shaft The exhaust gas purifying case is located near the exhaust inlet side of the exhaust gas purifying case in the vicinity of the flywheel and the exhaust gas outlet side of the exhaust gas purifying case is positioned in the vicinity of the cooling fan, And the other end side of the exhaust outlet pipe is connected to the support leg body which supports the exhaust inlet side of the exhaust gas purifying case.

According to a seventh aspect of the invention, there is provided the combine according to the first aspect, wherein the combine has an exhaust outlet pipe communicating with the exhaust gas purifying case and a tail pipe communicating with the exhaust outlet pipe, And the exhaust outlet side of the exhaust outlet pipe is loosely inserted into the exhaust inlet side of the tail pipe, and the exhaust port side of the exhaust pipe is loosely inserted into the engine room support constituting the framework of the engine room, It is said that pipe is connected.

The invention according to claim 8 is the combine according to claim 7, wherein the exhaust outlet pipe is connected to a supporting leg body for supporting the exhaust gas purifying case to the engine, and the position of the exhaust outlet pipe to the exhaust gas purifying case And the tail pipe is fastened to the engine room support so as to adjust the position of the tail pipe relative to the exhaust outlet pipe in the left and right direction "

According to a ninth aspect of the present invention, in the combine according to the seventh or eighth aspect, the exhaust gas purifying case and the exhaust outlet pipe are arranged above the engine so as to extend in parallel with the axial direction of the output shaft of the engine Wherein the exhaust gas purifying case has an exhaust inlet side located at left and right center sides of the traveling gas body and an exhaust gas outlet side of the exhaust gas purifying case located at left and right outer sides of the traveling gas body, And the other end side of the exhaust outlet pipe is connected to the support leg body that supports the exhaust inlet side of the exhaust gas purifying case and the other end side of the exhaust outlet pipe is connected to the output end And the tail pipe extending in a direction intersecting the axial direction of the tail pipe.

According to a tenth aspect of the present invention, in the combine according to the first aspect, in the engine, an engine water-cooling radiator is disposed at one side intersecting the output shaft, an exhaust outlet pipe communicating with the exhaust gas purifying case, A cooling water supply pipe for connecting the engine and a cooling water return pipe, and a water supply pipe extending from the air cleaner, wherein the water supply pipe is located below the exhaust pipe, and the cooling water return pipe is located below the water supply pipe And the cooling water supply pipe is passing between the exhaust outlet pipe and the air supply pipe.

According to the invention of claim 11, in the combine according to claim 10, the air cleaner and the exhaust gas purifying case are positioned above the engine so as to extend in parallel with the axial direction of the output shaft of the engine when viewed in plan, Wherein a cooling fan is disposed on one side of the engine that crosses the output shaft and a flywheel is disposed on the other side opposite to the one side intersecting with the output shaft and the exhaust inlet side of the exhaust gas purifying case is located near the flywheel And the exhaust outlet side of the exhaust gas purifying case is positioned near the cooling fan.

According to a first aspect of the present invention, there is provided a cutting machine comprising: a cutting device for taking a non-cut section of a package as an example; a trolley for tilting a cutaway section cut by the cutting machine; a traveling vehicle on which the cutting machine and the trolley are mounted; A combine comprising: an engine disposed in an engine room on a traveling vehicle; and an exhaust gas purifying case disposed in an exhaust system of the engine, the combine comprising: an air cleaner for purifying air to the engine; The intake air introduction side of the air cleaner can be easily connected to the outside air introduction portion disposed outside the engine room, for example, , A dead space above the engine is effectively used, and the exhaust gas purifying case and the air The cleaner can be arranged compactly within the outer shape (within the front-rear width and the width of the left-right width) when viewed from the plane of the engine.

According to a second aspect of the present invention, in the engine, an intake manifold and an exhaust manifold are separately disposed on both side portions with the output shaft therebetween, and a supercharger for supercharging air to the engine is disposed above the exhaust manifold An EGR device for disposing the exhaust gas purifying case above the supercharger and refluxing the exhaust gas to the intake system of the engine above the intake manifold is disposed, The exhaust gas purifying case and the turbocharger related to the exhaust system are arranged such that the air cleaner and the EGR device associated with the intake system on the exhaust manifold side are integrated in the intake manifold side up and down respectively . Therefore, it is easy to grasp the arrangement of the exhaust system member and the arrangement of the suction machine members, which contributes to the improvement of the assembling workability and the improvement of the maintenance property. In addition, it is easy to arrange the exhaust system piping and the intake pipe at a shortest possible length in the vicinity of the exhaust system member and the intake system member, so that the piping structure of the intake / exhaust system can be manufactured at low cost.

According to a third aspect of the present invention, in the engine, the cooling fan is disposed at one side intersecting with the output shaft, the flywheel is disposed at the other side opposite to the one side intersecting the output shaft, Since the inlet side is located near the flywheel and the exhaust outlet side of the exhaust gas purifying case is positioned near the cooling fan, the cooling air from the cooling fan is discharged from the exhaust gas purifying case The temperature of the exhaust gas after the purification treatment is lowered. In the exhaust gas purifying case, the exhaust inlet side through which the exhaust gas passes before the purifying process is away from the cooling fan, so that the cooling air is hard to reach. Therefore, the exhaust gas before the purification treatment is kept at a high temperature, and the purification performance of the exhaust gas purification case can be properly maintained. The temperature of the exhaust gas after the purification treatment can be lowered and can be discharged to the outside, and for example, ignition of straw crumbs or the like in the package can be prevented.

According to a fourth aspect of the present invention, there is provided an exhaust gas purifying apparatus comprising: an exhaust outlet pipe communicating with the exhaust gas purifying case; and a tail pipe communicating with the exhaust outlet pipe, the exhaust gas purifying case comprising: It is possible to support the exhaust gas purifying case and the exhaust outlet pipe integrally by using the support leg for supporting the exhaust gas purifying case as a supporting member of the exhaust outlet pipe, The support structure of the outlet tube can be manufactured at a low cost. Thereby contributing to an improvement in the support rigidity of the exhaust outlet pipe.

According to the invention of claim 5, the exhaust gas purifying case and the exhaust outlet pipe are arranged above the engine so as to extend in parallel with the axial direction of the output shaft of the engine when viewed from the plane, Since the exhaust outlet pipe is fastened to the support leg body so as to adjust the position of the exhaust outlet pipe, the exhaust gas purifying case and the exhaust outlet pipe are compactly arranged using the dead space on the upper surface of the engine And the machining error and the assembly error of the engagement portion of the exhaust outlet pipe and the support leg body can be easily absorbed and the assembling workability can be improved.

According to the sixth aspect of the present invention, in the engine, the cooling fan is disposed on one side portion intersecting with the output shaft, the flywheel is disposed on the other side opposite to the one side portion intersecting the output shaft, And the exhaust outlet side of the exhaust gas purifying case is positioned in the vicinity of the cooling fan. Therefore, the cooling air from the cooling fan is discharged from the exhaust gas purifying case to the exhaust gas purifying case The temperature of the exhaust gas after the purification treatment is lowered. In the exhaust gas purifying case, the exhaust inlet side through which the exhaust gas passes before the purifying process is away from the cooling fan, so that the cooling air is hard to reach. Therefore, the exhaust gas before the purge process is kept at a high temperature, and the purge performance of the exhaust gas purge case can be appropriately maintained. The temperature of the exhaust gas after the purification treatment can be lowered and can be discharged to the outside, and for example, ignition of straw crumbs or the like in the package can be prevented.

Further, one end side of the exhaust outlet pipe is connected to the exhaust outlet side of the exhaust gas purifying case, and the other end side of the exhaust outlet pipe is connected to the support leg body that supports the exhaust inlet side of the exhaust gas purifying case The exhaust outlet pipe can be formed long along the longitudinal direction of the exhaust gas purifying case so that the temperature of the exhaust gas can be lowered until exhausted to the outside of the room or the noise function can be improved .

According to a seventh aspect of the present invention, there is provided an exhaust gas purifying apparatus comprising: an exhaust outlet pipe communicating with the exhaust gas purifying case; and a tail pipe communicating with the exhaust outlet pipe, wherein a diameter of the exhaust pipe side of the tail pipe And the tail pipe is connected to the engine room support constituting the framework of the engine room by inserting the exhaust outlet side of the exhaust outlet pipe to the exhaust inlet side of the tail pipe loosely, It is possible to separate the tail pipe from the vibration system of the engine so that it is possible to remarkably suppress the possibility that the tail pipe is broken due to the difference in the vibration frequency between the engine side and the traveling gas side. Further, the support structure of the tail pipe can be manufactured at low cost by using the engine room support as a support member of the tail pipe.

According to the eighth aspect of the present invention, the exhaust outlet pipe is connected to the support leg body that supports the exhaust gas purifying case to the engine, and the position of the exhaust outlet pipe to the exhaust gas purifying case can be adjusted in the vertical direction Since the tail pipe is fastened to the engine room support so as to tighten the exhaust outlet pipe to the support leg body and to adjust the position of the tail pipe to the exhaust outlet pipe in the left and right direction, The exhaust gas purifying case and the exhaust outlet pipe can be compactly arranged using dead spaces of the exhaust outlet pipe and the exhaust outlet pipe, And the machining error and the assembly error of the tail pipe can be easily absorbed, The assembling workability of the outlet pipe and the tail pipe can be improved.

According to the invention of claim 9, the exhaust gas purifying case and the exhaust outlet pipe are arranged above the engine so as to extend in parallel with the axial direction of the output shaft of the engine when viewed from the plane, Wherein the inlet side is located at the left and right center sides of the traveling body, the exhaust outlet side of the exhaust gas purifying case is located on the left and right outside of the traveling gas body, one end side of the exhaust outlet pipe is connected to the exhaust outlet side of the exhaust gas purifying case And the other end side of the exhaust outlet pipe is connected to the support leg body that supports the exhaust inlet side of the exhaust gas purifying case and extends to the other end side of the exhaust outlet pipe in a direction intersecting the axial direction of the output shaft of the engine The tail pipe is communicated with the tail pipe. Therefore, the length direction of the exhaust gas purifying case It is possible to form the exhaust outlet pipe by a long, it is possible to decrease until the discharge temperature of the exhaust gas gioe or to improve the noise function to on or off. Further, after the exhaust gas purifying case and the exhaust outlet pipe are disposed in the space on the upper surface side of the engine, the tail pipe can be disposed in the lateral space of the threshing device, so that the exhaust gas purifying case , The exhaust outlet pipe and the tail pipe can be improved.

According to a tenth aspect of the present invention, in the engine, an engine water-cooling radiator is disposed at one side intersecting the output shaft, an exhaust outlet pipe communicating with the exhaust gas purifying case, a cooling water supply pipe connecting the radiator and the engine, A cooling water return pipe and an air cleaner extending from the air cleaner, wherein the air cleaner is positioned below the exhaust outlet pipe, the cooling water return pipe is positioned below the air cleaner, Since the cooling water supply pipe is passed between the air supply pipes, the exhaust outlet pipe, the air supply pipe and the cooling water return pipe can be arranged at appropriate intervals on the upper and lower sides without crossing each other when viewed from the side. Therefore, the assembling workability and the maintenance property of these piping structures can be improved. In addition, the distance between the exhaust outlet pipe and the air supply pipe can be reduced enough to pass through the cooling water supply pipe, so that deterioration of the air supply pipe due to the exhaust heat of the exhaust gas purification case and the exhaust outlet pipe can be suppressed.

According to the invention of claim 11, the air cleaner and the exhaust gas purifying case are positioned above the engine so as to extend in parallel with the axial direction of the output shaft of the engine when seen in a plan view, A flywheel is disposed on the other side opposite to the one side intersecting with the output shaft and the exhaust inlet side of the exhaust gas purifying case is positioned near the flywheel, The cooling wind from the cooling fan is brought into contact with the exhaust outlet side through which the exhaust gas after the purification treatment passes in the exhaust gas purifying case and the exhaust gas temperature after the purification treatment . In the exhaust gas purifying case, the exhaust inlet side through which the exhaust gas passes before the purifying process is away from the cooling fan, so that the cooling air is hard to reach. Therefore, the exhaust gas before the purge process is kept at a high temperature, and the purge performance of the exhaust gas purge case can be appropriately maintained. The temperature of the exhaust gas after the purification treatment can be lowered and can be discharged to the outside, and for example, ignition of straw crumbs or the like in the package can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a left side view of a four-unit pre-combination combine in the first embodiment. Fig.
2 is a right side view of the combine.
3 is a plan view of the combine.
4 is a perspective view of the operation section viewed from the left rear side.
5 is a left side view of the operation section.
6 is an enlarged left side view of the operation section.
7 is a left side view of the engine compartment.
8 is a front view of the engine room.
9 is a plan view of the engine room.
10 is a perspective view of the diesel engine viewed from the oblique right side of the front.
11 is a perspective view of the diesel engine viewed from the obliquely left side of the rear.
12 is a left side view of the diesel engine.
13 is a plan view of the diesel engine.
Fig. 14 is a perspective view of the combine of the second embodiment as viewed from the left rear side of the operation section. Fig.
15 is a left side view of the operation section.
16 is an enlarged left side view of the operation section.
17 is a left side view of the engine compartment.
18 is a front view of the engine room.
19 is a plan view of the engine room.
20 is a perspective view of the diesel engine as viewed from the obliquely right side of the front.
21 is a perspective view of the diesel engine as viewed from the obliquely left side of the rear.
22 is a left side view of the diesel engine.
23 is a plan view of the diesel engine.
24 is a right side view of the diesel engine.
25 is a rear view of the engine room.
26 is a left side view of the tail pipe in the reference example;
Fig. 27 is a perspective view of the tail pipe as viewed from the obliquely left side of the rear surface. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a combine according to the present invention will be described with reference to the drawings. In the following description, the left side toward the advancing direction of the traveling base 1 is simply called the left side, and the right side toward the advancing direction is simply called the right side. The combine of the first embodiment will be described with reference to Figs. 1 to 4. Fig. As shown in Figs. 1 to 4, includes a traveling base 1 supported by a pair of left and right traveling crawlers 2 (traveling units). A four-piece preliminary cutting apparatus 3, which takes the form of a curved path, is mounted on the front portion of the running vehicle 1 by means of a single-acting elevating hydraulic cylinder 4 so as to be able to move up and down around the cutting axis 4a . The traveling base 1 is provided with a threshing device 5 having a feed chain 6 and a grain tank 7 for storing curved grains after the threshing are arranged in a transversely arranged shape. The threshing device 5 is disposed on the left side in the advancing direction of the traveling base 1 and the grain tank 7 is disposed on the right side in the advancing direction of the traveling base 1 (see Fig. 3).

There is provided a discharge auger 8 for discharging the grain in the grain tank 7 from the rear to the upper side of the grain tank 7 to the outside of the machine. And is configured so as to be able to rotate the front portion of the grain tank 8 to the side of the gas flow with the vertical auger 8a of the discharge auger 8 as the center. An operating section 10 is provided at the right front portion of the traveling base 1 in front of the grain tank 7. The operation section 10 is provided with a step 10a on which the operator is to ride, a driver's seat 10b, a handle column 11 on which the steering wheel 10c is mounted and a peripheral lever 12 or an auxiliary shift lever 13 Or a side column 15 provided with a work clutch lever 14 or a switch or the like are disposed.

As shown in Figs. 1 and 2, a diesel engine 20 as a power source for each driving portion is disposed on the lower side of the driving seat 10b in the traveling base 1. [ Further, left and right track frames 21 are disposed on the lower surface side of the traveling base 1. The track frame 21 is provided with a driving sprocket 22 for transmitting the power of the engine 20 to the traveling crawler 2, a tension roller 23 for holding the tension of the traveling crawler 2, A plurality of track rollers 24 for holding the ground side of the track roller 24 in a grounded state are provided. The front end of the traveling crawler 2 is supported by the driving sprocket 22 and the rear side of the traveling crawler 2 is supported by the tension roller 23 and the rear side of the traveling crawler 2 is supported by the track roller 24, Lt; / RTI >

As shown in Figs. 1 to 3, the cutting device 3 is provided with a lifting device 31 for raising four tanks for raising the tiles of the packaging, and a barricain type tearing device for cutting a stump between the non- A cutting blade device 32 and a curved conveying device 33 for conveying a cut curved portion from the rising device 31 to the front end portion (conveying start end side) of the feed chain 6 are provided. The grooves between the uncut grooves are cut by the cutting blade device 32 and the grooves are formed between the grooves by the raising device 31 so as to form the feed chain 6, The cutting edge portion is conveyed to the front end portion.

The threshing device 5 is provided with a threshing container 51 for intermittent threshing and a swash plate discriminating plate 52 serving as a swash plate selecting mechanism for selecting an offgas falling downwardly of the threshing container 51, A treatment tank 54 for reprocessing a threshing discharge which is drawn out from the rear portion of the threshing tank 51 and a treatment tank 54 for discharging the exhaust dust in the rear portion of the oscillation discriminating plate 52 And a defrosting fan (61) for performing a defrosting operation.

As shown in Figs. 1 and 2, a discharge straw chain 62 is disposed on the rear end side (the conveying end side) of the feed chain 6. The discharged straw (grain-free straw) inherited from the rear end side of the feed chain 6 to the discharge straw chain 62 is discharged to the rear side of the traveling gas 1 in a state of a long length, And is then discharged to the rear lower side of the traveling base 1. In this case, as shown in Fig.

On the lower side of the swing sorting plate 52, there are provided a first conveyor 55 for taking out the selected curl (first sorting) from the swinging plate 52 and a first conveyor 55 for picking up the curl And this conveyor 56 for withdrawing water is provided. It is provided so as to extend in the transverse direction above the rear portion of the traveling crawler 2 when viewed from the front side in the traveling direction of the traveling base 1, the first conveyor 55 and the present conveyor 56 in that order.

The swing sorting plate (52) is configured to swing the falling lips falling downwardly of the threshing bucket (51) (specific gravity sorting). The dust in the curved puddle dropped from the swing sorting plate 52 is removed by the air flow from the tuyere pan 53 and dropped onto the first conveyor 55. [ A first grain lifting cylinder 57 extending in the vertical direction is provided at a longitudinal end portion protruding outward from one side wall (right side wall in the embodiment) near the grain tank 7 in the threshing device 5 in the first conveyor 55, Respectively. The curl pulled out from the first conveyor 55 is carried into the grain tank 7 by the first grain lifting conveyor (not shown) in the first grain lifting cylinder 57 and collected inside the grain tank 7.

The swing sorting plate 52 drops the selected sorting material (a re-screening material for re-screening mixed with grains and straw crumbs) such as grains having a spike branch by the swing sorting (specific gravity sorting) . The selected material drawn out by the conveyor 56 is returned to the upper surface side of the oscillating sorting plate 52 through the reducing cylinder 58 and the processing unit processing unit to be re-sorted. Straw debris and dust in the defloated water from the threshing bucket 51 are discharged from the rear portion of the traveling gas 1 toward the package by the selective air from the tuyere fan 53 and the suction fan action of the discharge fan 61 .

Next, the mounting structure of the diesel engine 20 will be described with reference to Figs. 4 to 9. Fig. The diesel engine 20 is supported on the underside of the driving seat 10b of the running vehicle 1 through the engine bed 41 as shown in Figs. The drive force of the diesel engine 20 is transmitted to each part of the drive case 42 and the thrashing device 5 at the front portion of the track frame 21 via the pulley / belt drive system. The front and side surfaces of the diesel engine 20 are covered with the engine room cover 44. [ A partitioning plate body 16 is provided below the side column 15 and a part of the upper surface side of the diesel engine 20 is covered by the partitioning plate body 16. [ The front surface side of the engine room 43 is formed by the engine room cover 44 and the upper surface side of the engine room 43 is formed by the engine room cover 44 and the partition plate body 16.

As shown in Fig. 8, a box-shaped wind tunnel case 46 is installed upright on the right side end of the operation section 10 of the running vehicle 1 through an opening / closing point shaft 45. [ A water-cooling radiator 47 is installed upright inside the wind tunnel case 46 on the upper surface side of the traveling base 1 so as to replace the radiator 47 with the cooling fan 48 of the diesel engine 20. [ (Cooling wind) is introduced into the wind tunnel case 46 from the outside opening 46a on the top of the wind tunnel case 46 and cooled from the inside opening 46b of the lower part of the wind tunnel case 46 through the radiator 47 The dust-exhausting cooling wind is blown into the engine room 43 by the rotation of the fan 48, and the diesel engine 20 or the like is cooled by the dust-exhausting cooling wind. In addition, an outboard net 46a is provided at the upper portion of the wind tunnel case 46 in the upper part. The presence of the reinforcement mesh prevents the entry of straw crumbs into the wind tunnel case 46, and further into the engine room 43.

6 and 7, a pair of left and right engine room pillars 71 are installed upright on the rear side of the operation section 10 on the upper surface of the traveling base 1, and left and right engine room pillars 71, the back surface plate 72 is extended. That is, the engine room 43 is formed (partitioned) by the partition plate body 16, the engine room cover 44, the wind tunnel case 46 and the rear plate body 72. The diesel engine 20 is disposed in the engine room 43 with the output shaft 20a (crankshaft) of the diesel engine 20 facing left and right. The left end of the output shaft 20a is projected to the left side of the diesel engine 20 and the drive belt 73 and the threshing drive belt 74 are connected to the left end (projecting end) of the output shaft 20a have. The driving force of the diesel engine 20 is output from the output shaft 20a to the traveling crawler 2 through the traveling driving belt 73 and the driving force of the diesel engine 20 is transmitted from the output shaft 20a to the tread driving belt 74 So that the driving force is outputted toward the threshing device 5.

4 to 8, an air cleaner 49 for supplying fresh air to the diesel engine 20 and an exhaust gas purifying case 50 for processing the exhaust gas of the diesel engine 20 Respectively. The upper surface side of the engine room cover 44 is formed in a stepped manner and the upper surface 44a of the engine room cover 44 is formed lower and the upper surface 44b of the engine room cover 44 is formed higher. An auxiliary cover body 44c is provided between the rear end of the rear upper surface 44b of the engine room cover 44 and the upper end of the left and right engine room supports 71. [ The air cleaner 49 is positioned below the rear upper surface 44b and the auxiliary cover body 44c of the engine room cover 44 by fixing the air cleaner 49 to the lower surface of the auxiliary cover body 44c.

The noise cover 40 is mounted on the upper surface side of the auxiliary cover member 44c. The inside of the noise canceller body 40 is communicated with the wind tunnel case 46 through the new air introducing pipe body 39 and the air cleaner 49 is communicated with the interior of the noise canister body 40. The air in the wind tunnel case 46 is introduced into the intake manifold 19 of the diesel engine 20 through the air cleaner 49. [ The wind tunnel case 46, the new air introducing pipe body 39 and the noise box body 40 correspond to the outside air inlet portion located outside the engine room 43. [ Further, the electric box 38 is provided on the upper surface side of the noise box 40 itself. An engine controller or the like is built in the electric field box 38.

On the other hand, on the upper surface side of the front upper surface 44a of the engine room cover 44, the driver's seat 10b is supported via the seat support mechanism 10d. The exhaust gas purifying case 50 is disposed on the front upper surface 44a of the engine room cover 44 and on the lower side of the partition plate body 16. [ The exhaust gas purifying case 50 is formed in an elongated cylindrical outer shape and is supported on the upper surface side of the diesel engine 20. In other words, the axial direction of the output shaft 20a of the diesel engine 20 coincides with the exhaust gas moving direction inside the exhaust gas purifying case 50. The longitudinal direction of the exhaust gas purifying case 50 is parallel to the output shaft 20a of the diesel engine 20. [

The exhaust gas introduction side (exhaust inlet side) of the exhaust gas purifying case 50 is positioned below the partition plate body 16 as shown in Figs. 7 and 8, (Exhaust outlet side) of the exhaust gas purifying case 50 is positioned on the lower side of the exhaust gas outlet 44a. An exhaust inlet pipe 81 is provided on the exhaust gas introduction side of the exhaust gas purifying case 50 and an exhaust outlet pipe 82 is provided on the exhaust gas withdrawing side of the exhaust gas purifying case 50. The exhaust inlet pipe 81 of the exhaust gas purifying case 50 is connected to an exhaust manifold 83 of the diesel engine 20 through a turbine case 106 of a turbocharger 105 to be described later, 81 and the exhaust manifold 83 are communicated with each other. The tail pipe 84 is extended between the threshing apparatus 5 and the grain tank 7 and the exhaust outlet pipe 82 is connected to the tail pipe 84. [ The exhaust gas discharged from the exhaust manifold 83 of the diesel engine 20 is discharged from the exhaust gas purifying case 50 through the tail pipe 84 to the outside of the vehicle.

As shown in Figs. 6, 7 and 9, the exhaust outlet pipe 82 is bent in an L-shape toward the left and right center sides of the traveling base 1, (In the vicinity of the inlet between the device 5 and the grain tank 7). That is, the exhaust outlet pipe 82 has a crank shape in plan view. The length of the exhaust gas purifying case 50 and the exhaust outlet pipe 82 are adjacent to each other so as to extend in parallel with the axial direction of the output shaft 20a of the diesel engine 20 in plan view. The rear end side of the exhaust outlet pipe 82 and the front end side of the tail pipe 84 communicate with each other. The tail pipe 84 is bent so that its front end side is bent downward, the middle portion thereof is downwardly extended, and the rear end side thereof is bent backward from the upper rear side of the traveling crawler 2. That is, the tail pipe 84 has a crank shape when viewed from the side. And the rear end side of the tail pipe 84 is opened obliquely downwardly between the left and right travel crawlers 2 rearward.

A lever point shaft mechanism 17 for supporting the work clutch lever 14 and the like is disposed below the side column 15 and above the partition plate body 16 as shown in Fig. A clutch operation link mechanism 18 for tensing or relaxing the threshing drive belt 74 or the like in conjunction with the operation of the work clutch lever 14 or the like is provided on the left side of the partition plate body 16 and the exhaust gas purifying case 50 . And a side column cover 15a covering the left side of the lever point shaft mechanism 17, the clutch operation link mechanism 18, and the like. In the embodiment, the upper end of the side column cover 15a is connected to the lower side of the left side surface of the side column 15. A clutch operation link mechanism 18 is disposed between the partition plate body 16 and the exhaust gas purifying case 50 and the side column cover 15a.

Next, the structure of the diesel engine 20 will be described with reference to Figs. 10 to 13. Fig. As shown in Figs. 10 to 12, the intake manifold 19 is disposed on one side (rear side) of the cylinder head 91 of the diesel engine 20. The cylinder head 91 is overlaid on a cylinder block 92 containing an output shaft 20a and a piston (not shown). And the exhaust manifold 83 is disposed on the other side (front surface) of the cylinder head 91. [ That is, in the diesel engine 20, the intake manifold 19 and the exhaust manifold 83 are separately disposed on both sides with the output shaft 20a therebetween. And the output shaft 20a is projected laterally and outwardly from both left and right sides of the cylinder block 92. [

The flywheel housing 93 is fixed to the left side surface of the cylinder block 92 as shown in Figs. A flywheel (94) is installed in the flywheel housing (93). The driving force of the diesel engine 20 is drawn out from the left end side of the output shaft 20a which supports the flywheel 94 to the mission case 42. [ An oil pan 95 is disposed on the lower surface of the cylinder block 92. A radiator 47 is provided so as to face the cooling fan 48 with the cooling fan 48 disposed on the right side of the cylinder block 92 (see FIGS. 8 and 9).

That is, the cooling fan 48 is disposed on one side of the diesel engine 20 that intersects with the output shaft 20a (on the right side of the cylinder block 92), and the cooling fan 48 is disposed on the opposite side to the one side crossing the output shaft 20a And the flywheel 94 is disposed on the other side (the left side of the cylinder block 92). The exhaust gas inlet side (exhaust inlet side) of the exhaust gas purifying case 50 is located near the flywheel 94 and the exhaust gas withdrawing side (exhaust outlet side) of the exhaust gas purifying case 50 is located near the cooling fan 48 .

With this configuration, the cooling air from the cooling fan 48 is brought into contact with the exhaust gas drawing side (exhaust outlet side) through which the exhaust gas after the purification treatment passes in the exhaust gas purifying case 50, . In the exhaust gas purifying case 50, the exhaust gas introduction side (exhaust inlet side) through which the exhaust gas passes before the purification treatment is away from the cooling fan 48, and the cooling air is hard to reach. Therefore, the exhaust gas before the purification treatment is kept at a high temperature, so that the purification performance of the exhaust gas purification case 50 can be appropriately maintained. Further, the temperature of the exhaust gas after the purification treatment can be lowered and can be discharged to the outside, for example, to prevent ignition of straw crumbs or the like in the package.

As shown in FIGS. 11 and 12, an exhaust gas recirculation device (EGR device) 96 for introducing exhaust gas for recirculation is disposed in the intake manifold 19. The air cleaner 49 is connected to the intake manifold 19 through a compressor case 107 and an exhaust gas recirculation device 96 of a turbocharger 105 to be described later. New air (outside air) sucked and cleaned by the air cleaner 49 is sent to the intake manifold 19 through the compressor case 107 and the exhaust gas recirculation device 96 of the turbocharger 105, Is supplied to each cylinder of the engine (20).

A part of the exhaust gas discharged from the diesel engine 20 to the exhaust manifold 83 flows into the respective cylinders of the diesel engine 20 through the exhaust gas recirculation device 96 and the intake manifold 19. [ Is refluxed. As a result, the combustion temperature of the diesel engine 20 is lowered, the amount of nitrogen oxide (NOx) discharged from the diesel engine 20 is reduced, and the fuel economy of the diesel engine 20 is improved.

A fuel pump 98 connected to a fuel tank (not shown) and a common rail 99 are connected to each injector 97 of the four cylinders of the diesel engine 20 as shown in Fig. The common rail 99 and the fuel filter 100 are disposed on the intake manifold 19 side of the cylinder head 91 and the fuel pump 100 is disposed on the lower side of the intake manifold 19 in the cylinder block 92 98 are disposed. Each of the injectors 97 has an electromagnetic opening / closing control type fuel injection valve (not shown). A common rail 99 is connected to the discharge side of the fuel pump 98 and each injector 97 of the diesel engine 20 is connected to a cylindrical common rail 99. The high-pressure fuel is temporarily stored in the common rail 99, and is supplied into each cylinder (cylinder) of the diesel engine 20 via the common rail 99.

In the above configuration, the fuel of the diesel engine 20 is press-fed by the common rail 99 by the fuel pump 98 and accumulated in the common rail 99 as high-pressure fuel. The high-pressure fuel in the common rail 99 is injected into each cylinder of the diesel engine 20 by opening and closing the fuel injection valves of the respective injectors 97, respectively. That is, by electronically controlling the fuel injection valves of the respective injectors 97, the fuel injection pressure, injection timing, and injection period (injection amount) can be controlled with high accuracy. Therefore, nitrogen oxide (NOx) discharged from the diesel engine 20 can be reduced.

As shown in Fig. 10, a turbo supercharger 105 is disposed above the exhaust manifold 83 in front of the cylinder head 5. The turbocharger 105 includes a turbine case 106 with a turbine wheel built therein and a compressor case 107 with a built-in blower wheel. And the exhaust gas introduction side of the turbine case 106 is connected to the exhaust manifold 83. An exhaust inlet pipe 81 of the exhaust gas purifying case 50 is connected to the exhaust gas withdrawing side of the turbine case 106. That is, the exhaust gas discharged from each cylinder of the diesel engine 20 to the exhaust manifold 83 is discharged to the outside of the vehicle via the turbocharger 105, the exhaust gas purifying case 50, and the like.

The air supply inlet side of the compressor case 107 is connected to the air supply draw-out side of the air cleaner 49 through the air supply duct 108. The intake and exhaust side of the compressor case 107 is connected to the intake manifold 19 via the supercharger 109 and the exhaust gas recirculation device 96. That is, the fresh air, which has been damped and cleaned by the air cleaner 49, is sent from the compressor case 107 to the exhaust gas recirculation device 96 through the supercharging pipe 109, .

As shown in Figs. 10 to 13, the exhaust gas purifying apparatus for purifying the exhaust gas discharged from each cylinder of the diesel engine 20 includes an exhaust gas purifying apparatus for removing particulate matter in the exhaust gas of the diesel engine 20 And a gas purifying case 50 (diesel particulate filter (DPF)). As shown in Fig. 10, the exhaust gas purifying case 50 is provided with an oxidation catalyst 111 and a soot filter 112 therein. The exhaust gas discharged from each cylinder of the diesel engine 20 to the exhaust manifold 83 is discharged to the outside via the exhaust gas purifying case 50 and the like. The exhaust gas purifying case 50 is configured to reduce carbon monoxide (CO), hydrocarbon (HC), particulate matter PM and nitrogen oxide material (NOx) in the exhaust gas of the diesel engine 20.

The exhaust gas purifying case 50 is formed in a long cylindrical shape elongated in a direction parallel to the output shaft 20a (crankshaft) of the diesel engine 20 when viewed from the top. An exhaust inlet pipe 81 for introducing an exhaust gas to a portion near the flywheel 94 is provided in the exhaust gas purifying case 50 and the exhaust gas purifying case 50 is provided at a portion near the cooling fan 48 in the exhaust gas purifying case 50 And an exhaust outlet pipe 82 for exhausting the exhaust gas after the purification treatment is provided. The left and right side surfaces of the cylinder head 91 are detachably supported through the left support leg body 113 and the right support leg body 114 on the opposite side to the one end side of the exhaust gas purifying case 50 in the exhaust gas moving direction have. That is, the exhaust gas purifying case 50 is attached to the upper surface side of the diesel engine 20 through the left support leg body 113 and the right support leg body 114. The exhaust gas purifying case 50 is positioned above the exhaust manifold 83 in the longitudinal direction of the cylindrical exhaust gas purifying case 50 in the left and right direction of the diesel engine 20. [

The axial direction of the output shaft 20a of the diesel engine 20 coincides with the exhaust gas moving direction within the exhaust gas purifying case 50 (the longitudinal direction of the exhaust gas purifying case 50). Likewise, the longitudinal direction of the air cleaner 49 also coincides with the axial direction of the output shaft 20a of the diesel engine 20. 9, the air cleaner 49 and the exhaust gas purifying case 50 are arranged so as to extend in parallel with the axial direction of the output shaft 20a of the diesel engine 20 when seen in a plan view, As shown in Fig. In this case, the air cleaner 49 is located below the rear upper surface 44b of the engine room cover 44 and the auxiliary cover body 44c and above the intake manifold 19. The exhaust gas purifying case 50 is located below the front upper surface 44a of the engine room cover 44 and the partition plate body 16 and above the exhaust manifold 83. [

The air intake side of the air cleaner 49 can be easily connected to the outside air introduction portion (wind tunnel case 46 or the like) disposed outside the engine room 43, It is possible to effectively arrange the exhaust gas purifying case 50 and the air cleaner 49 in an outer shape (within the front-rear width and the width of the left-right width) when viewed from the plane of the diesel engine 20 13). The height positions of the air cleaner 49 and the exhaust gas purifying case 50 are set such that the air cleaner 49 is on the upper side and the exhaust gas purifying case 50 is on the lower side, As shown in Fig.

As shown in FIGS. 10 and 12, a turbocharger 105 for supercharging air to the diesel engine 20 is disposed above the exhaust manifold 83. An exhaust gas purifying case 50 is disposed above the turbo supercharger 105. That is, the exhaust gas purifying case 50 and the turbo supercharger 105 are vertically arranged above the exhaust manifold 83. 11 and 12, an exhaust gas recirculation device 96 (see FIG. 11) for refluxing the exhaust gas to the intake system (intake manifold 19) of the diesel engine 20 is provided above the intake manifold 19, ) (EGR device) are disposed. And an air cleaner 49 is disposed above the exhaust gas recirculation device 96. That is, the air cleaner 49 and the exhaust gas recirculation device 96 are vertically arranged above the intake manifold 19.

The exhaust gas purifying case 50 and the turbo supercharger 105 related to the exhaust system are provided on the exhaust manifold 83 side with the air cleaner 49 and the exhaust gas recirculation device 96, Are vertically integrated in the intake manifold 19 side by side. Therefore, it is easy to understand the arrangement of the exhaust system members (the exhaust gas purifying case 50 and the turbo supercharger 105) and the arrangement of the intake system members (the air cleaner 49 and the exhaust gas recirculation device 96) It is possible to improve and improve the maintenance. It is also easy to arrange the exhaust system piping (exhaust outlet pipe 82 and the like) and the intake system piping (the exhaust system 108, etc.) squarely as short as possible around the exhaust system member and the intake system member, Structure and the like can be manufactured at low cost.

11 and 12, the exhaust support plate 115 is bolted to the left support leg body 113 bolted to the left side surface of the cylinder head 91 so as to protrude in the rear direction, An approximately L-shaped outlet pipe bracket 116 is welded to the rear end side of the outlet pipe 82 when viewed in plan. An outlet pipe bracket 116 is bolted to the rear end side of the exhaust support plate 115 so that the height of the outlet pipe can be adjusted. That is, the exhaust outlet pipe 82 is vertically adjustably supported via the outlet pipe bracket 116 on the rear end side of the exhaust support plate 115 on the left side of the cylinder head 91. The height position of the exhaust outlet pipe 82 with respect to the exhaust gas purifying case 50 is adjusted. In this case, a pair of slits 117 are formed on the front plate portion of the outlet pipe bracket 116 so as to be vertically and vertically aligned. The bolts inserted into the respective slits 117 of the outlet pipe bracket 116 are screwed into the bolt holes formed in the exhaust support plate 115 to attach the outlet pipe bracket 116 to the rear end side of the exhaust support plate 115 The height is adjustable.

The exhaust gas outlet pipe 82 is connected to the left support leg body 113 for supporting the exhaust gas purifying case 50 to the diesel engine 20. Therefore, It is possible to integrally support the exhaust gas purifying case 50 and the exhaust outlet pipe 82 by using the left support leg body 113 as a supporting member of the exhaust outlet pipe 82, The support structure can be manufactured at low cost. It is possible to contribute to the improvement of the support rigidity of the exhaust outlet pipe 82.

Since the exhaust outlet pipe 82 is fastened to the left support leg body 113 so as to adjust the position of the exhaust outlet pipe 82 with respect to the exhaust gas purifying case 50, The exhaust gas purifying case 50 and the exhaust outlet pipe 82 can be compactly arranged using the dead space of the exhaust gas outlet pipe 82 and the exhaust gas outlet pipe 82, ) And the outlet pipe bracket 116) can be easily absorbed, and the assembling workability can be improved.

One end side (front end side) of the exhaust outlet pipe 82 is connected to the exhaust gas withdrawing side (exhaust outlet side) of the exhaust gas purifying case 50 and the exhaust gas purifying case 50 (The rear end side) of the exhaust outlet pipe 82 is connected to the left support leg body 113 which supports the exhaust gas outlet side (the exhaust inlet side) 82 can be formed in a long length so that the temperature of the exhaust gas can be lowered until exhausted to the outside of the air conditioner or the noise function can be improved.

The inner diameter of the exhaust inlet on the front end side of the tail pipe 84 is made larger than the exhaust outlet diameter on the rear end side of the exhaust outlet pipe 82 as shown in Figs. And the exhaust inlet of the tail pipe 84 is loosely inserted into the exhaust outlet of the exhaust outlet pipe 82. Therefore, outside air is sucked into the tail pipe 84 from the gap between the exhaust outlet of the exhaust outlet pipe 82 and the exhaust inlet of the tail pipe 84.

As shown in Figs. 4 and 5, the front support bracket 85 is welded to the front end side of the crank-shaped tail pipe 84 when viewed from the side. A pipe plate 86 is welded to the left side of the left engine room support 71. Then, the front support bracket 85 is provided on the pipe plate 86 and the bolts are fastened to adjust the position. That is, the front end side of the tail pipe 84 is supported by the pipe plate 86 of the left engine room support 71 via the front support bracket 85 so as to be positionally adjustable in the left-right direction. Further, the rear support bracket 87 is bolted to the upper surface side of the traveling base 1. And the rear end side (exhaust outlet) of the tail pipe 84 opened rearward is attached to the rear support bracket 87. And the exhaust outlet side of the tail pipe 84 is supported by the rear support bracket 87 so as to coincide with the horizontal frame height of the running vehicle 1. [

That is, the exhaust inlet side of the tail pipe 84 is supported at a height substantially equal to the height of the exhaust gas purifying case 50 on the upper side of the diesel engine 20, and the thrashing device 5 and the grain tank 7 And the exhaust outlet side of the tail pipe 84 is supported at a substantially same height as the frame height of the loaded traveling vehicle 1 at a low level. 4 and 5, the rear end edge portion of the pulley cover plate body 88 is brought close to the middle of the length of the tail pipe 84. As shown in Fig. The outer side of the tuyere pulley 89 for inputting the driving force of the diesel engine 20 is surrounded by the tail pipe 84 and the pulley cover plate 88 in the threshing device 5. [ The outside air heated by the discharge heat of the tail pipe 84 by the shielding in the tail pipe 84 and the pulley cover plate body 88 is sucked into the tug fan 53 as the sorting air.

Next, a second embodiment of the present invention will be described with reference to Figs. 14 to 27. Fig. Hereinafter, the same reference numerals as those in the first embodiment are attached to those in the second and subsequent embodiments, and the detailed description thereof will be omitted. Hereinafter, differences from the first embodiment of the second embodiment will be described.

16-18, the diesel engine 20 is supported on the underside of the driving seat 10b of the running vehicle 1 through the engine bed 41 in a dustproof manner. The drive force of the diesel engine 20 is transmitted to each part of the drive case 42 and the thrashing device 5 at the front portion of the track frame 21 via the pulley / belt drive system. The front surface side and the upper surface side of the diesel engine 20 are covered with the engine room cover 44. [ A partitioning plate body 16 is provided below the side column 15 and a part of the upper surface side of the diesel engine 20 is covered by the partitioning plate body 16. [ The front surface side of the engine room 43 is formed by the engine room cover 44 and the upper surface side of the engine room 43 is formed by the engine room cover 44 and the partition plate body 16.

As shown in Fig. 18, a box-shaped wind tunnel case 46 is installed upright on the right side end of the operation section 10 of the running vehicle 1 via an opening / closing point shaft 45. As shown in Fig. A water-cooling radiator 47 is installed upright inside the wind tunnel case 46 on the upper surface side of the traveling base 1 so as to replace the radiator 47 with the cooling fan 48 of the diesel engine 20. [ (Cooling wind) is introduced into the wind tunnel case 46 from the outside opening 46a on the top of the wind tunnel case 46 and cooled from the inside opening 46b of the lower part of the wind tunnel case 46 through the radiator 47 The dust-exhausting cooling wind is sent into the engine room 43 by the rotation of the fan 48 and the diesel engine 20 or the like is cooled by the dust-free cooling wind. Further, a wind-up network is provided in the outer-side opening 46a above the wind tunnel case 46. [ The presence of the reinforcement mesh prevents the entry of straw crumbs into the wind tunnel case 46, and further into the engine room 43.

16 and 17, a pair of left and right engine room pillars 71 are installed upright on the rear side of the operation section 10 on the upper surface of the traveling base 1, and left and right engine room pillars 71 The rear plate member 72 is extended. That is, the engine room 43 is formed (partitioned) by the partition plate body 16, the engine room cover 44, the wind tunnel case 46 and the rear plate body 72. The left and right engine room pillars 71 constitute a frame of the engine room 43. The diesel engine 20 is disposed in the engine room 43 with the output shaft 20a (crankshaft) of the diesel engine 20 facing left and right. The left end of the output shaft 20a is projected to the left side of the diesel engine 20 and the drive belt 73 and the threshing drive belt 74 are connected to the left end (projecting end) of the output shaft 20a have. The driving force of the diesel engine 20 is output from the output shaft 20a to the traveling crawler 2 through the traveling driving belt 73 and the driving force of the diesel engine 20 is transmitted from the output shaft 20a to the tread driving belt 74 So that the driving force is outputted toward the threshing device 5.

14 to 18, an air cleaner 49 for supplying fresh air to the diesel engine 20 and an exhaust gas purifying case 50 for processing the exhaust gas of the diesel engine 20 Respectively. The upper surface side of the engine room cover 44 is formed in a stepped manner and the upper surface 44a of the engine room cover 44 is formed lower and the upper surface 44b of the engine room cover 44 is formed higher. An auxiliary cover body 44c is provided between the rear end of the rear upper surface 44b of the engine room cover 44 and the upper end of the left and right engine room supports 71. [ The air cleaner 49 is positioned below the rear upper surface 44b and the auxiliary cover body 44c of the engine room cover 44 by fixing the air cleaner 49 to the lower surface of the auxiliary cover body 44c.

The noise cover 40 is mounted on the upper surface side of the auxiliary cover member 44c. The inside of the noise canceller body 40 is communicated with the wind tunnel case 46 through the new air introducing pipe body 39 and the air cleaner 49 is communicated with the interior of the noise canister body 40. And the air in the wind tunnel case 46 is introduced into the intake manifold 19 of the diesel engine 20 through the air cleaner 49. The wind tunnel case 46, the new air introducing pipe body 39 and the noise box body 40 correspond to the outside air inlet portion located outside the engine room 43. [ Further, the electric box 38 is provided on the upper surface side of the noise box 40 itself. An engine controller or the like is built in the electric field box 38.

On the other hand, on the upper surface side of the front upper surface 44a of the engine room cover 44, the driver's seat 10b is supported via the seat support mechanism 10d. The exhaust gas purifying case 50 is disposed on the front upper surface 44a of the engine room cover 44 and on the lower side of the partition plate body 16. [ The exhaust gas purifying case 50 is formed in an elongated cylindrical shape and is supported on the upper surface side of the diesel engine 20. In other words, the axial direction of the output shaft 20a of the diesel engine 20 coincides with the exhaust gas moving direction inside the exhaust gas purifying case 50. The longitudinal direction of the exhaust gas purifying case 50 is parallel to the output shaft 20a of the diesel engine 20. [

17 and 18, the exhaust gas introduction side (exhaust inlet side) of the exhaust gas purifying case 50 is positioned below the partition plate body 16, (Exhaust outlet side) of the exhaust gas purifying case 50 is positioned on the lower side of the exhaust gas outlet 44a. An exhaust inlet pipe 81 is provided on the exhaust gas introduction side of the exhaust gas purifying case 50 and an exhaust outlet pipe 82 is provided on the exhaust gas withdrawing side of the exhaust gas purifying case 50. The exhaust inlet pipe 81 of the exhaust gas purifying case 50 is connected to an exhaust manifold 83 of the diesel engine 20 through a turbine case 106 of a turbocharger 105 to be described later, 81 and the exhaust manifold 83 are communicated with each other. A tail pipe 84 is successively installed between the threshing device 5 and the grain tank 7 and the exhaust outlet pipe 82 is connected to the tail pipe 84. [ The exhaust gas discharged from the exhaust manifold 83 of the diesel engine 20 is discharged from the exhaust gas purifying case 50 through the tail pipe 84 to the outside.

As shown in Figs. 16, 17 and 19, the exhaust outlet pipe 82 is bent in an L-shape toward the left and right center sides of the traveling base 1, (In the vicinity of the inlet between the device 5 and the grain tank 7). That is, the exhaust outlet pipe 82 has a crank shape in plan view. Therefore, the middle portions of the exhaust gas purifying case 50 and the exhaust outlet pipe 82 are adjacent to each other so as to extend in parallel with the axial direction of the output shaft 20a of the diesel engine 20 when seen in plan view. The rear end side of the exhaust outlet pipe 82 and the front end side of the tail pipe 84 are connected. In this case, the other end side of the exhaust outlet pipe 82 is communicated with the front end side of the tail pipe 84 extending in the direction (front-rear direction) intersecting with the axial direction of the output shaft 20a of the diesel engine 20. The tail pipe 84 is bent so that its front end side is bent downward, the middle portion thereof is downwardly extended, and the rear end side thereof is bent backward from the upper rear side of the traveling crawler 2. That is, the tail pipe 84 has a crank shape when viewed from the side. And the rear end side of the tail pipe 84 is opened obliquely downwardly between the left and right travel crawlers 2 rearward.

A lever point shaft mechanism 17 for supporting the work clutch lever 14 and the like is disposed below the side column 15 and above the partition plate body 16 as shown in Fig. A clutch operation link mechanism 18 for tensing or relaxing the threshing drive belt 74 or the like in conjunction with the operation of the work clutch lever 14 or the like is provided on the left side of the partition plate body 16 and the exhaust gas purifying case 50 . And a side column cover 15a covering the left side of the lever point shaft mechanism 17, the clutch operation link mechanism 18, and the like. In the embodiment, the upper end of the side column cover 15a is connected to the lower side of the left side surface of the side column 15. The clutch operation link mechanism 18 is disposed between the partition plate body 16 and the exhaust gas purifying case 50 and the side column cover 15a.

Next, the structure of the diesel engine 20 will be described with reference to Figs. 20 to 25. Fig. As shown in Figs. 20 to 22, the intake manifold 19 is disposed on one side (rear side) of the cylinder head 91 of the diesel engine 20. The cylinder head 91 is mounted on a cylinder block 92 incorporating an output shaft 20a and a piston (not shown). And the exhaust manifold 83 is disposed on the other side (front surface) of the cylinder head 91. [ That is, in the diesel engine 20, the intake manifold 19 and the exhaust manifold 83 are separately disposed on both sides with the output shaft 20a therebetween. And the output shaft 20a is projected laterally and outwardly from both left and right sides of the cylinder block 92. [

As shown in Figs. 14 to 17, the flywheel housing 93 is fixed to the left side surface of the cylinder block 92. As shown in Fig. A flywheel (94) is installed in the flywheel housing (93). The driving force of the diesel engine 20 is drawn out from the left end side of the output shaft 20a which supports the flywheel 94 to the mission case 42. [ An oil pan 95 is disposed on the lower surface of the cylinder block 92. The radiator 47 is disposed in the right side of the cylinder block 92 with the cooling fan 48 disposed so as to face the cooling fan 48 (see FIGS. 18 and 19).

That is, the cooling fan 48 is disposed on one side of the diesel engine 20 that intersects with the output shaft 20a (on the right side of the cylinder block 92), and the cooling fan 48 is disposed on the opposite side to the one side crossing the output shaft 20a And the flywheel 94 is disposed on the other side (the left side of the cylinder block 92). The exhaust gas inlet side (exhaust inlet side) of the exhaust gas purifying case 50 is located near the flywheel 94 and the exhaust gas withdrawing side (exhaust outlet side) of the exhaust gas purifying case 50 is located near the cooling fan 48 . Therefore, the exhaust gas introduction side (exhaust inlet side) of the exhaust gas purifying case 50 is located at the left and right center sides of the traveling base 1. The exhaust gas withdrawing side (exhaust outlet side) of the exhaust gas purifying case 50 is located on the left and right outside of the traveling base 1.

With this configuration, the cooling air from the cooling fan 48 is brought into contact with the exhaust gas drawing side (exhaust outlet side) through which the exhaust gas after the purification treatment passes in the exhaust gas purifying case 50, . In the exhaust gas purifying case 50, the exhaust gas introduction side (exhaust inlet side) through which the exhaust gas passes before the purification treatment is away from the cooling fan 48, and the cooling air is hard to reach. Therefore, the exhaust gas before the purification treatment is kept at a high temperature, so that the purification performance of the exhaust gas purification case 50 can be appropriately maintained. Further, the temperature of the exhaust gas after the purification treatment can be lowered and can be discharged to the outside, for example, to prevent ignition of straw crumbs or the like in the package.

As shown in Figs. 21 and 22, an exhaust gas recirculation device (EGR device) 96 for introducing exhaust gas for recirculation is disposed in the intake manifold 19. The air cleaner 49 is connected to the intake manifold 19 through a compressor case 107 and an exhaust gas recirculation device 96 of a turbocharger 105 to be described later. New air (outside air) sucked and cleaned by the air cleaner 49 is sent to the intake manifold 19 through the compressor case 107 and the exhaust gas recirculation device 96 of the turbocharger 105, Is supplied to each cylinder of the engine (20).

A part of the exhaust gas discharged from the diesel engine 20 to the exhaust manifold 83 is supplied to the respective cylinders of the diesel engine 20 through the exhaust gas recirculation device 96 and the intake manifold 19. [ Is refluxed. As a result, the combustion temperature of the diesel engine 20 is lowered, the amount of nitrogen oxide (NOx) discharged from the diesel engine 20 is reduced, and the fuel economy of the diesel engine 20 is improved.

21, a common rail 99 and a fuel pump 98 connected to a fuel tank (not shown) are connected to each injector 97 of the four cylinders of the diesel engine 20. [ The common rail 99 and the fuel filter 100 are disposed on the intake manifold 19 side of the cylinder head 91 and the fuel pump 100 is disposed on the lower side of the intake manifold 19 in the cylinder block 92 98 are disposed. Each of the injectors 97 has an electromagnetic opening / closing control type fuel injection valve (not shown). A common rail 99 is connected to the discharge side of the fuel pump 98 and each injector 97 of the diesel engine 20 is connected to a cylindrical common rail 99. The high-pressure fuel is temporarily stored in the common rail 99, and is supplied into each cylinder (cylinder) of the diesel engine 20 via the common rail 99.

In the above configuration, the fuel of the diesel engine 20 is press-fed by the common rail 99 by the fuel pump 98 and accumulated in the common rail 99 as high-pressure fuel. The high-pressure fuel in the common rail 99 is injected into each cylinder of the diesel engine 20 by opening and closing the fuel injection valves of the respective injectors 97, respectively. That is, by electronically controlling the fuel injection valves of the respective injectors 97, the fuel injection pressure, injection timing, and injection period (injection amount) can be controlled with high accuracy. Therefore, nitrogen oxide (NOx) discharged from the diesel engine 20 can be reduced.

20, a turbocharger 105 is disposed above the exhaust manifold 83 in front of the cylinder head 5. [ The turbocharger 105 includes a turbine case 106 with a turbine wheel built therein and a compressor case 107 with a built-in blower wheel. And the exhaust gas introduction side of the turbine case 106 is connected to the exhaust manifold 83. The exhaust inlet pipe 81 of the exhaust gas purifying case 50 is connected to the exhaust gas withdrawing side of the turbine case 106. That is, the exhaust gas discharged from each cylinder of the diesel engine 20 to the exhaust manifold 83 is discharged to the outside of the vehicle via the turbocharger 105, the exhaust gas purifying case 50, and the like.

The air supply inlet side of the compressor case 107 is connected to the air supply draw-out side of the air cleaner 49 through the air supply duct 108. The intake and exhaust side of the compressor case 107 is connected to the intake manifold 19 through the supercharger 109 and the exhaust gas recirculation device 96. That is, the fresh air, which has been damped and cleaned by the air cleaner 49, is sent from the compressor case 107 to the exhaust gas recirculation device 96 through the supercharging pipe 109, .

As shown in Figs. 20 to 23, the exhaust gas purifying apparatus for purifying the exhaust gas discharged from each cylinder of the diesel engine 20 includes an exhaust gas purifying apparatus for removing particulate matter from the exhaust gas of the diesel engine 20 And a gas purifying case 50 (diesel particulate filter (DPF)). As shown in Fig. 20, the exhaust gas purifying case 50 is provided with an oxidation catalyst 111 and a soot filter 112 therein. The exhaust gas discharged from each cylinder of the diesel engine 20 to the exhaust manifold 83 is discharged to the outside via the exhaust gas purifying case 50 and the like. The exhaust gas purifying case 50 is configured to reduce carbon monoxide (CO), hydrocarbon (HC), particulate matter PM and nitrogen oxide material (NOx) in the exhaust gas of the diesel engine 20.

The exhaust gas purifying case 50 is formed in a long, elongated cylindrical shape elongated in a direction parallel to the output shaft 20a (crankshaft) of the diesel engine 20 when seen in plan view. The exhaust gas purifying case 50 is provided with an exhaust inlet pipe 81 for introducing the exhaust gas to a portion near the flywheel 94 and is disposed in the vicinity of the cooling fan 48 in the exhaust gas purifying case 50 And an exhaust outlet pipe 82 for exhausting the treated exhaust gas is provided. The left and right side surfaces of the cylinder head 91 are detachably supported through the left support leg body 113 and the right support leg body 114 on the opposite side to the one end side of the exhaust gas purifying case 50 in the exhaust gas moving direction have. That is, the exhaust gas purifying case 50 is attached to the upper surface side of the diesel engine 20 through the left support leg body 113 and the right support leg body 114. The exhaust gas purifying case 50 is positioned above the exhaust manifold 83 in the longitudinal direction of the cylindrical exhaust gas purifying case 50 in the left and right direction of the diesel engine 20. [

The axial direction of the output shaft 20a of the diesel engine 20 coincides with the exhaust gas moving direction within the exhaust gas purifying case 50 (the longitudinal direction of the exhaust gas purifying case 50). Likewise, the longitudinal direction of the air cleaner 49 also coincides with the axial direction of the output shaft 20a of the diesel engine 20. 9, the air cleaner 49 and the exhaust gas purifying case 50 are arranged so as to extend in parallel with the axial direction of the output shaft 20a of the diesel engine 20 when seen in a plan view, As shown in Fig. In this case, the air cleaner 49 is located below the rear upper surface 44b of the engine room cover 44 and the auxiliary cover body 44c and above the intake manifold 19. The exhaust gas purifying case 50 is located below the front upper surface 44a of the engine room cover 44 and the partition plate body 16 and above the exhaust manifold 83. [

The air intake side of the air cleaner 49 can be easily connected to the outside air introduction portion (wind tunnel case 46 or the like) disposed outside the engine room 43, It is possible to arrange the exhaust gas purifying case 50 and the air cleaner 49 compactly in the outer shape (within the front-back width and the width of the left-right width) when viewed from the plane of the diesel engine 20 23). The height positions of the air cleaner 49 and the exhaust gas purifying case 50 are set such that the air cleaner 49 is on the upper side and the exhaust gas purifying case 50 is on the lower side, And is shifted up and down along the shape of the mold.

As shown in Figs. 20 and 22, a turbocharger 105 for supercharging air to the diesel engine 20 is disposed above the exhaust manifold 83. As shown in Fig. An exhaust gas purifying case 50 is disposed above the turbo supercharger 105. That is, the exhaust gas purifying case 50 and the turbo supercharger 105 are vertically arranged above the exhaust manifold 83. 21 and 22, an exhaust gas recirculation device 96 (see FIG. 21) for refluxing the exhaust gas to the intake system (intake manifold 19) of the diesel engine 20 is provided above the intake manifold 19, ) (EGR device) are disposed. And an air cleaner 49 is disposed above the exhaust gas recirculation device 96. That is, the air cleaner 49 and the exhaust gas recirculation device 96 are vertically arranged above the intake manifold 19.

The exhaust gas purifying case 50 and the turbo supercharger 105 related to the exhaust system are provided on the exhaust manifold 83 side with the air cleaner 49 and the exhaust gas recirculation device 96, Are vertically integrated in the intake manifold 19 side by side. Therefore, it is easy to understand the arrangement of the exhaust system members (the exhaust gas purifying case 50 and the turbo supercharger 105) and the arrangement of the intake system members (the air cleaner 49 and the exhaust gas recirculation device 96) It is possible to improve and improve the maintenance. It is also easy to arrange the exhaust system piping (exhaust outlet pipe 82 and the like) and the intake system piping (the exhaust system 108, etc.) squarely as short as possible around the exhaust system member and the intake system member, Structure and the like can be manufactured at low cost.

21 and 22, the exhaust support plate 115 is bolted to the left support leg body 113 bolted to the left side surface of the cylinder head 91 so as to protrude in the rear direction, An approximately L-shaped outlet pipe bracket 116 is welded to the rear end side of the outlet pipe 82 when viewed from above. An outlet pipe bracket 116 is bolted to the rear end side of the exhaust support plate 115 so that the height of the outlet pipe can be adjusted. That is, the exhaust outlet pipe 82 is vertically adjustably supported via the outlet pipe bracket 116 on the rear end side of the exhaust support plate 115 on the left side of the cylinder head 91. The height position of the exhaust outlet pipe 82 with respect to the exhaust gas purifying case 50 is adjusted. In this case, a pair of slits 117 are formed on the front plate portion of the outlet pipe bracket 116 so as to be vertically and vertically aligned. The bolts inserted into the respective slits 117 of the outlet pipe bracket 116 are screwed into the bolt holes formed in the exhaust support plate 115 to attach the outlet pipe bracket 116 to the rear end side of the exhaust support plate 115 The height is adjustable.

The exhaust gas outlet pipe 82 is connected to the left support leg body 113 for supporting the exhaust gas purifying case 50 to the diesel engine 20. Therefore, It is possible to integrally support the exhaust gas purifying case 50 and the exhaust outlet pipe 82 by using the left support leg body 113 as a supporting member of the exhaust outlet pipe 82, The structure can be manufactured at low cost. It is possible to contribute to the improvement of the support rigidity of the exhaust outlet pipe 82.

Since the exhaust outlet pipe 82 is fastened to the left support leg body 113 so as to adjust the position of the exhaust outlet pipe 82 with respect to the exhaust gas purifying case 50, The exhaust gas purifying case 50 and the exhaust outlet pipe 82 can be arranged in a compact manner using the dead space of the exhaust gas outlet pipe 82 and the exhaust gas outlet pipe 82, (The outlet tube bracket 115 and the outlet tube bracket 116) can be easily absorbed, thereby improving the assembling workability.

One end side (front end side) of the exhaust outlet pipe 82 is connected to the exhaust gas withdrawing side (exhaust outlet side) of the exhaust gas purifying case 50 and the exhaust gas purifying case 50 (The rear end side) of the exhaust outlet pipe 82 is connected to the left support leg body 113 which supports the exhaust gas outlet side (the exhaust inlet side) 82 can be formed in a long length so that the temperature of the exhaust gas can be lowered until exhausted to the outside of the air conditioner or the noise function can be improved.

The inner diameter of the exhaust inlet on the front end side of the tail pipe 84 is made larger than the exhaust outlet diameter on the rear end side of the exhaust outlet pipe 82 as shown in Figs. The exhaust inlet of the tail pipe 84 is loosely inserted into the exhaust outlet of the exhaust outlet pipe 82 so as to be inserted. Therefore, outside air is sucked into the tail pipe 84 from the gap between the exhaust outlet of the exhaust outlet pipe 82 and the exhaust inlet of the tail pipe 84. It is also possible to separate the tail pipe 84 from the vibration system of the diesel engine 20 so that the tail pipe 84 may be broken due to the difference in vibration frequency between the diesel engine 20 side and the traveling vehicle 1 side Can be suppressed.

As shown in Figs. 14, 15 and 25, the front support bracket 85 is welded to the front end side of the crank-shaped tail pipe 84 when viewed from the side. A pipe plate 86 is welded to the left side of the left engine room support 71. The front support bracket 85 is bolted to the pipe plate 86 so as to be adjustable in installation position. That is, the front end side of the tail pipe 84 is supported by the pipe plate 86 of the left engine room support 71 via the front support bracket 85 so as to be positionally adjustable in the left-right direction. In this case, a pair of adjustment slits 118, which are long in the left-right direction and are aligned in the vertical direction, are formed in the front support bracket 85. The bolts inserted into the adjustment slits 118 of the front support bracket 85 are screwed into the bolt holes formed in the pipe plate 86 to adjust the position of the front support bracket 85 relative to the pipe plate 86 It is fixed as possible. Further, the rear support bracket 87 is bolted to the upper surface side of the traveling base 1. And the rear end side (exhaust outlet) of the tail pipe 84 opened rearward is attached to the rear support bracket 87. And the exhaust outlet side of the tail pipe 84 is supported by the rear support bracket 87 so as to coincide with the horizontal frame height of the running vehicle 1. [ With this structure, the left engine room support 71 can be used also as a support member of the tail pipe 84, so that the support structure of the tail pipe 84 can be manufactured at low cost.

That is, the exhaust inlet side of the tail pipe 84 is supported at a height substantially equal to the height of the exhaust gas purifying case 50 above the diesel engine 20, and the threshing device 5 and the grain tank 7 And the exhaust outlet side of the tail pipe 84 is supported at a substantially same height as the frame height of the loaded traveling vehicle 1. 4 and 5, the rear end edge portion of the pulley cover plate body 88 is brought close to the middle of the length of the tail pipe 84. As shown in Fig. The outer side of the tuyere pulley 89 for inputting the driving force of the diesel engine 20 is enclosed by the tail pipe 84 and the pulley cover plate 88 in the threshing device 5. [ The outside air heated by the discharge heat of the tail pipe 84 is sucked by the tuyere fan 53 as the sorting air by the shielding by the tail pipe 84 and the pulley cover plate 88. [

As is apparent from the above description of the base material and Figs. 14, 15 and 25, there are provided a cutting device 3 for taking an uncut cut of a package, a trolling device 5 for tilling the cut trench cut by the cutting device 3 An engine 20 disposed in an engine room 43 on the traveling base 1 and a control unit 20 for controlling the engine 20 and the traveling vehicle 1, And an exhaust gas purifying case (50) disposed in an exhaust system of the exhaust gas purifying case (50), the combine comprising: an exhaust outlet pipe (82) communicating with the exhaust gas purifying case (50) And the diameter of the exhaust pipe side of the tail pipe 84 is set to be larger than the diameter of the exhaust pipe side of the exhaust pipe 82 on the exhaust pipe side of the tail pipe 84, The exhaust outlet side of the exhaust outlet pipe (82) is loosely inserted, and the engine room (43) The tail pipe 84 can be detached from the vibration system of the engine 20 because the tail pipe 84 is connected to the main chamber support 71 so that the distance between the engine 20 side and the traveling gas 1 It is possible to remarkably suppress the possibility that the tail pipe 84 is broken due to the difference in the vibration frequency of the tail pipe 84. [ In addition, the support structure of the tail pipe 84 can be manufactured at a low cost by using the engine room support 71 as a support member of the tail pipe 84.

The exhaust outlet pipe 82 is connected to the support leg body 113 for supporting the exhaust gas purifying case 50 to the engine 20 and the exhaust gas purifying case 50 is connected to the exhaust outlet pipe 82, The exhaust pipe 82 is fastened to the support leg body 113 so that the position of the pipe 82 can be adjusted in the vertical direction and the position of the tail pipe 84 relative to the exhaust pipe 82 The tail pipe 84 is fastened to the engine room support 71 so as to adjust the exhaust gas purifying case 50 and the exhaust gas purifying case 50 using the dead space on the upper surface side of the engine 20. Therefore, It is possible to arrange the exhaust outlet pipe 82 in a compact manner and to prevent a machining error or an assembly error of the engagement portion between the exhaust outlet pipe 82 and the support leg body 113, The machining error or the assembly error of the tail pipe 84 According to the absorption stage, it is possible to improve the assembly workability of the exhaust outlet pipe 82 and the tail pipe 84.

The exhaust gas purifying case 50 and the exhaust gas outlet pipe 82 are formed above the engine 20 so as to extend in parallel with the axial direction of the output shaft 20a of the engine 20 And the exhaust inlet side of the exhaust gas purifying case 50 is located on the left and right center sides of the traveling vehicle 1 and the exhaust outlet side of the exhaust gas purifying case 50 is located on the left and right outside of the traveling vehicle 1 And the support leg body 113 for supporting the exhaust inlet side of the exhaust gas purifying case 50 is connected to one end of the exhaust outlet pipe 82 at the exhaust outlet side of the exhaust gas purifying case 50, And the other end of the exhaust pipe 82 is connected to the tail pipe 84 extending in the direction intersecting the axial direction of the output shaft 20a of the engine 20. [ The exhaust gas purification device It is possible in the longitudinal direction of the case 50 to form the exhaust outlet pipe 82 as long, it is possible to degrade until the exhaust temperature of the exhaust gas to gioe improve or noise on or. After the exhaust gas purifying case 50 and the exhaust outlet pipe 82 are disposed on the upper surface side space of the engine 20, the tail pipe 84 is provided in the side space of the threshing device 5 It is possible to improve the arrangement efficiency of the exhaust gas purifying case 50, the exhaust outlet pipe 82, and the tail pipe 84 with respect to each dead space.

As shown in Fig. 24, a cooling water pump 120 is disposed on the upper left side of the cylinder block 92. As shown in Fig. The cooling water pump 120 is configured to be driven together with the cooling fan 48 by the belt transmission according to the rotation of the output shaft 20a of the diesel engine 20. [ The upper side of the radiator 47 for water cooling of the diesel engine 20 disposed inside the wind tunnel case 46 and the thermostat case 121 provided on the upper side of the cooling water pump 120 are connected through a cooling water supply pipe 122 Respectively. The side of the cooling water pump 120 and the lower side of the radiator 47 are connected through a cooling water return pipe 123. The cooling water in the radiator 47 is supplied from the cooling water supply pipe 122 to the cooling water pump 120 through the thermostat case 121. Cooling water is supplied to a water-cooled jacket (not shown) formed in the cylinder head 91 and the cylinder block 92 by driving the cooling water pump 120 to cool the diesel engine 20. The cooling water that contributes to the cooling of the diesel engine 20 is returned from the cooling water pump 120 to the radiator 47 via the cooling water return pipe 123.

24, the air supply tube 108 extending from the air cleaner 49 is disposed below the exhaust inlet side of the exhaust outlet pipe 82 communicating with the exhaust gas purifying case 50 in the side view shown in Fig. Is positioned so as to extend from the exhaust manifold (19) side toward the exhaust manifold (83) side. And a cooling water return pipe 123 is positioned below the air supply pipe 108. The cooling water supply pipe 122 passes between the exhaust inlet side of the exhaust outlet pipe 82 and the air supply pipe 108. And crosses the air supply pipe 108 and the cooling water supply pipe 122 which do not generate exhaust heat when viewed from the side. The exhaust outlet pipe 82, the air supply pipe 108, and the cooling water return pipe 123 are set so as not to intersect each other when viewed from the side.

With such a configuration, the exhaust outlet pipe 82, the air supply tube 108, and the cooling water return pipe 123 can be arranged at an appropriate vertical interval without intersecting each other when viewed from the side. Therefore, the assembling workability and the maintenance property of these piping structures can be improved. The distance between the exhaust outlet pipe 82 and the air supply pipe 108 is reduced enough to allow the cooling water supply pipe 122 to pass therethrough and the exhaust heat of the exhaust gas purifying case 50 and the exhaust outlet pipe 82 It is possible to suppress the deterioration of the air supply tube 108 caused by the above-

26 and 27 show a reference example of the tail pipe 184 provided between the threshing device 5 and the grain tank 7 in succession. The tail pipe 84 of the embodiment has a structure in which the exhaust gas is discharged from the hoisting device 5 and the grain tank 7 (between the left and right traveling crawlers 2) backward and downward. However, in the tail pipe 184 of the reference example, Is configured to discharge the exhaust gas from between the threshing device (5) and the grain tank (7) to the rear upper side. 26, the tail pipe 184 of the reference example bends the front end side upward, extends the longitudinal middle portion upward, and moves the rear end side to a position above the upper surface of the threshing device 5 and to the upper side of the grain tank 7 In the backward direction. That is, the tail pipe 184 has a crank shape when viewed from the side. The rear end side of the tail pipe 184 opens rearward obliquely upward.

As shown in Fig. 27, the middle support bracket 185 is welded and fixed to the longitudinal middle portion of the crank-shaped tail pipe 184 when viewed from the side. An attachment plate 186 is welded to the left side of the left engine room support 71. The intermediate support bracket 185 of the tail pipe 184 is bolted to the attachment plate 186 of the left engine room support 71 through a substantially L-shaped connection bracket 187 so as to be adjustable in mounting position. In this case, although not shown, a pair of adjustment slits vertically aligned in the vertical direction is formed on the attachment plate 186 of the left engine room support 71, And the one-side portion and the attachment plate 186 are fixed so as to be vertically adjustable. A pair of adjustment slits are formed on the intermediate support bracket 185 of the tail pipe 184 so as to be longitudinally aligned in the left and right directions. The pair of adjustment slits 181, To the left and right positions.

A substantially L-shaped vertical bracket 188 is welded to the rear end side of the tail pipe 184. And the horizontal piece portion of the vertical bracket 188 is bolted to the right side of the upper surface of the threshing device from above. In this case, although not shown, a pair of adjustment slits aligned in the left-right lengthwise direction are formed on the horizontal piece of the vertical bracket 188, and the horizontal piece of the connection bracket 187 is connected to the threshing device 5 In the right-and-left direction.

In addition, the configuration of each unit in the present invention is not limited to the illustrated embodiment, and various modifications are possible without departing from the gist of the present invention.

1: Running vehicle 3: Cutting device
5: Thresher 20: Diesel engine
20a: Output shaft 43: Engine room
44: engine room cover 49: air cleaner
50: Exhaust gas purifying case 82: Exhaust outlet pipe
84: tail pipe 113, 114: support leg body
120: Cooling water pump 122: Cooling water supply pipe
123: cooling water return pipe

Claims (11)

A cutting device that takes a non-cutaway section of the package, a trolley which tallens the cutaway section cut by the cutting device, a traveling vehicle that carries the cutting device and the trolley, and an engine 1. A combine comprising an engine and an exhaust gas purifying case disposed in an exhaust system of the engine,
An air cleaner for purifying the air to the engine and an exhaust gas purifying case are disposed above the engine so as to extend in parallel with the axial direction of the output shaft of the engine when viewed from a plane. The method according to claim 1,
In the engine, an intake manifold and an exhaust manifold are separately arranged on both side portions with the output shaft therebetween,
A supercharger for supercharging air to the engine is disposed above the exhaust manifold, the exhaust gas purifying case is disposed above the supercharger,
An EGR device for refluxing an exhaust gas from the intake system of the engine is disposed above the intake manifold, and the air cleaner is disposed above the EGR device. 3. The method of claim 2,
Wherein a cooling fan is disposed on one side portion of the engine that intersects the output shaft, a flywheel is disposed on the other side opposite to the one side portion intersecting the output shaft,
The exhaust inlet side of the exhaust gas purifying case is positioned near the flywheel and the exhaust outlet side of the exhaust gas purifying case is positioned near the cooling fan. The method according to claim 1,
And an exhaust outlet pipe communicating with the exhaust gas purifying case and a tail pipe communicating with the exhaust outlet pipe, wherein the exhaust outlet pipe is connected to a supporting leg body that supports the exhaust gas purifying case to the engine. 5. The method of claim 4,
The exhaust gas purifying case and the exhaust outlet pipe are disposed above the engine so as to extend in parallel with the axial direction of the output shaft of the engine when viewed in plan,
And the exhaust outlet pipe is fastened to the support leg body so as to adjust the position of the exhaust outlet pipe to the exhaust gas purifying case. The method according to claim 4 or 5,
Wherein a cooling fan is disposed on one side of the engine that intersects with the output shaft and a flywheel is disposed on the other side opposite to the one side intersecting the output shaft and is disposed near the flywheel on the exhaust inlet side of the exhaust gas purifying case The exhaust outlet side of the exhaust gas purifying case is positioned near the cooling fan,
A combine connecting the one end side of the exhaust outlet pipe to the exhaust outlet side of the exhaust gas purifying case and connecting the other end side of the exhaust outlet pipe to the support leg body supporting the exhaust inlet side of the exhaust gas purifying case . The method according to claim 1,
And a tail pipe communicating with the exhaust gas purifying case and a tail pipe communicating with the exhaust outlet pipe, wherein a diameter of the tail pipe at an exhaust inlet side is set to be larger than a diameter at an exhaust outlet side of the exhaust outlet pipe And a tail pipe is connected to an engine room support constituting a framework of the engine room by loosely inserting the exhaust outlet side of the exhaust outlet pipe into the exhaust inlet side of the tail pipe. 8. The method of claim 7,
The exhaust outlet pipe is connected to a support leg body for supporting the exhaust gas purifying case to the engine and the exhaust outlet pipe is connected to the support leg body so that the position of the exhaust outlet pipe to the exhaust gas purifying case can be adjusted in the vertical direction, While the outlet pipe is fastened,
And the tail pipe is fastened to the engine room support so that the position of the tail pipe relative to the exhaust outlet pipe can be adjusted in the left and right direction. 9. The method according to claim 7 or 8,
The exhaust gas purifying case and the exhaust outlet pipe are disposed above the engine so as to extend in parallel with the axial direction of the output shaft of the engine when viewed in plan,
Wherein the exhaust gas purifying case has an exhaust inlet side located at the left and right center sides of the traveling gas body, an exhaust gas outlet side of the exhaust gas purifying case located at left and right outer sides of the traveling gas body, The other end side of the exhaust outlet pipe is connected to the support leg body that supports the exhaust inlet side of the exhaust gas purifying case and the other end side of the exhaust outlet pipe is connected to the axis of the output shaft of the engine, And the tail pipe extending in a direction intersecting the direction of the tail pipe. The method according to claim 1,
In the engine, an engine water cooling radiator is disposed on one side of the engine that crosses the output shaft,
An exhaust outlet pipe communicating with the exhaust gas purifying case, a cooling water supply pipe connecting the radiator and the engine, and a cooling water return pipe, and a supply pipe extending from the air cleaner,
Wherein the cooling water return pipe is positioned below the exhaust gas pipe and the cooling water supply pipe passes between the exhaust gas pipe and the air supply pipe. 11. The method of claim 10,
The air cleaner and the exhaust gas purifying case are positioned above the engine so as to extend in parallel with the axial direction of the output shaft of the engine when viewed in a plan view,
Wherein a cooling fan is disposed on one side of the engine that crosses the output shaft and a flywheel is disposed on the other side opposite to the one side intersecting with the output shaft and the exhaust inlet side of the exhaust gas purifying case is located near the flywheel And the exhaust outlet side of the exhaust gas purifying case is positioned near the cooling fan.

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