KR20170034790A - Combine - Google Patents

Abstract

The present invention aims at suppressing the influence of the arrangement of the engine room when a driver's seat is provided on the engine room in an engine equipped with an exhaust gas purifying case. The combine according to the present invention includes a cutting device 3 for taking a non-cut section of a package, a threshing device 5 for threshing the cut trench cut by the cutting device 3, a cutting device 3 and a threshing device 5 An engine 20 disposed in the engine room 43 on the traveling base 1 and an exhaust gas purifying case 50 disposed in the exhaust system of the engine 20 . The driver's seat 10b is disposed on the upper surface side of the engine room cover 44 covering the engine room 43. [ The engine room cover 44 has openings 43d, 44e and 44g which are below the driver's seat 10b and which have a double-layered structure covering the upper portion and the front portion of the exhaust gas purifying case 50, I have.

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 a threshing device while cutting out a gap between uncut portions of the package 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 disposed so as to be able to move up and down on the front side of the traveling gas, and biasing the exhaust gas purifying case near the cutting device See Document 1). Further, the engine room top plate is formed in a stepped shape, 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 has various apparatuses such as a cutting apparatus and a threshing apparatus, an engine room is formed below the operation unit in the right side room of the cutting unit, and an 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 (the engine mounting space is often narrow). In the engine room with many restrictions, various components such as an air cleaner and a radiator are disposed in addition to the engine.

Further, 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 drops. 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.

Based on these points, in the above-described conventional technique, a part of the exhaust gas purifying case is slightly protruded from the engine room in the vicinity of the cutting device 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 in the vicinity of the cutting device to secure the attachment position of the exhaust gas purifying case on the upper surface side of the engine. In this case, since the exhaust gas purifying case and a part of the engine protrude from the engine room, the left and right width dimensions of the engine and its surrounding structure become long, and furthermore, it is difficult to easily make the lateral width dimension of the traveling gas compact.

In addition, since the cooling effect in the engine room is reduced by influencing the amount of exhaust gas from the exhaust gas purifying case, when the driver's seat is provided on the engine room, the influence of the arrangement of the engine room is given to the operator, The environment becomes unpleasant. On the other hand, when the exhaust gas purifying case is provided in the engine, the temperature of the exhaust gas becomes high, and therefore, in the case of a work vehicle such as a combine, efficient use of waste heat is expected based on exhaust gas which becomes high temperature.

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 cutting edge of a package; a trolley for tilting a cutaway cutter cut by the cutting device; a traveling vehicle mounted with the cutting device and the trolley; 1. A combine comprising: an engine to be installed in an engine room; and an exhaust gas purifying case for processing exhaust gas of the engine, wherein a driving seat is disposed on an upper surface side of an engine room cover covering the engine room, A portion of the exhaust gas purifying case that covers the upper portion and the front portion of the exhaust gas purifying case below the driving seat has a double structure and has an opening for sucking outside air.

According to a second aspect of the present invention, in the combine according to the first aspect, the double structure portion of the engine room cover is communicated with the outside air suction side of the radiator, and a plurality of openings are formed in the upper surface and the front surface of the double structure portion.

According to a third aspect of the present invention, in the combine according to the first or second aspect, the side column is arranged on the side of the inside of the engine room, wherein the exhaust gas purifying case is disposed so as to protrude downward from the side column, And the heat shield plate is disposed at a height position in the vicinity of the double structure portion of the engine room cover.

According to a fourth aspect of the invention, there is provided a combine according to the second aspect, wherein the radiator is disposed to face a cooling fan provided at one side of the engine, and a cooling air guide plate for guiding the cooling air passing through the radiator to the engine room I have installed it.

According to a fifth aspect of the invention, there is provided a combine according to the fourth aspect, wherein a shroud covering the exhaust side of the radiator is provided, the cooling fan of the engine is disposed in the opening formed in the shroud, And is fixed to both side surfaces of the shroud and extended to the engine room side.

According to a sixth aspect of the invention, there is provided a combine according to the fifth aspect, further comprising an air cleaner for introducing outside air into the engine, wherein a fresh air introduction pipe from the air cleaner is disposed between the shroud and the engine, And a cooling water pipe for connecting the radiator is arranged crossing above the fresh air introduction pipe.

According to a seventh aspect of the invention, there is provided a combine according to the sixth aspect, wherein a thruster pulley for transmitting the engine output to the threshing device is disposed on the side opposite to the radiator in the engine room, .

The invention according to claim 8 is the combine according to claim 6, wherein the air cleaner is arranged on the rear side of the exhaust gas purifying case in parallel with the exhaust gas purifying case when seen from a plane, An exhaust pipe connected to the exhaust side of the exhaust gas purifying case and the air cleaner is provided so as to extend in parallel between the exhaust gas purifying case and the air cleaner.

According to a ninth aspect of the present invention, in the combine according to the eighth aspect, a heat shield plate is disposed between the air cleaner and the exhaust pipe.

According to a tenth aspect of the present invention, there is provided a combine according to the first aspect, further comprising: an exhaust outlet pipe connected to the exhaust gas purifying case; and a tail pipe connected to the exhaust outlet pipe, Wherein the exhaust pipe is supported by a detachable support member so that the tail pipe can be tightly fixed to the engine frame and the threshing device so as to be adjustable in the vertical direction, The tail pipe is disposed and the exhaust side of the tail pipe is directed upward.

The combine according to claim 11 is characterized in that the driving seat is arranged above the engine room, wherein the tail pipe is fixed above the engine room rear part, and the space between the driving seat and the tail pipe The operation tool case is disposed at a position where the operation tool case is located.

According to a twelfth aspect of the present invention, in the combine according to the tenth aspect or the eleventh aspect, the exhaust gas purifying case and the exhaust outlet pipe are arranged so as to extend in parallel with the axial direction of the output shaft of the engine And the inlet of the exhaust gas purifying case is connected to the exhaust side of the engine at a position on the opposite side of the cooling fan provided at one side portion crossing the output shaft of the engine.

(Effects of the Invention)

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; And an exhaust gas purifying case for processing the exhaust gas of the engine, wherein the engine compartment cover includes an engine compartment cover that covers the engine compartment, Since the exhaust gas purifying case has a double-layered structure that covers the upper portion and the front portion of the exhaust gas purifying case and has an opening for sucking outside air, the temperature rise outside the engine room cover can be suppressed, It is possible to prevent the heat inside the engine room from being transmitted to the operator boarding the engine room. Therefore, it is possible to support the exhaust gas purifying case between the lower surface of the driver's seat and the upper surface of the engine, and it is possible to easily reduce the installation width in the lateral direction of the driver's seat and the engine, The exhaust gas purifying case can be compactly installed. Further, the filter regeneration operation in which the temperature of the exhaust gas in the exhaust gas purifying case is maintained at a high temperature can be performed smoothly.

According to the invention of claim 2, since the double structure portion of the engine room cover is communicated with the outside air suction side of the radiator and a plurality of openings are formed in the upper surface and the front surface of the double structure portion, The internal space of the double-layered structure of the engine room cover can be ventilated using the suction force. Therefore, it is not necessary to provide a ventilation fan or the like for allowing the air in the internal space of the engine compartment cover to be taken in and out.

According to a third aspect of the present invention, there is provided a structure for disposing a side column on the side of the interior of the engine room, wherein the exhaust gas purifying case is disposed so as to protrude downward from the side column, Since the heat shield plate is disposed at a height position near the double structure of the engine room cover, the wire or harness on the side of the side column can be easily protected by the heat shield plate for heating of the exhaust gas purifying case and the like have. In addition, it is possible to prevent exhaust from the guide grooves or the like of each lever opened on the operating plate of the side surface of the side column toward the operator of the driver's seat.

According to the invention of claim 4, since the radiator is arranged to face the cooling fan provided at one side of the engine and the cooling wind guide plate for guiding the cooling wind passing through the radiator to the engine room is provided, The cooling air can be efficiently supplied into the engine room, and the cooling effect in the engine room is improved. In particular, when the engine room is installed below the driver's seat and the engine is installed together with the exhaust gas purifying case, heat storage in the engine room can be prevented, It is possible to prevent the heat from being transmitted.

According to a fifth aspect of the present invention, a shroud covering the exhaust side of the radiator is provided, the cooling fan of the engine is disposed in an opening formed in the shroud, and the cooling air guide plate is fixed to both sides of the shroud, Since the cooling air introduced into the engine room by the cooling fan is less likely to leak outside the engine room, the cooling effect of the engine can be improved.

According to a sixth aspect of the present invention, there is provided an air cleaner comprising: an air cleaner for introducing outside air into the engine, wherein a fresh air introduction pipe from an air cleaner is disposed between the shroud and the engine, The temperature rise of the new introduction pipe due to the heat generating element such as the exhaust gas purifying case can be suppressed and the degradation of the fresh feed introduction pipe can be reduced. Further, the fresh-material introduction pipe and the cooling water pipe may be provided so as to extend compactly at an appropriate interval up and down.

According to a seventh aspect of the present invention, there is provided a structure in which a threshing pulley for transmitting the engine output to the threshing device is disposed on the opposite side of the radiator in the engine room, And the cooling air sucked from the radiator side can be passed through the engine room in an efficient manner.

According to an eighth aspect of the present invention, there is provided an exhaust gas purifying apparatus comprising: an exhaust gas purifying case disposed in parallel with the exhaust gas purifying case in a plan view, the air cleaner being disposed on the rear upper side of the exhaust gas purifying case, The air cleaner can be disposed apart from the exhaust gas purifying case which becomes a high-temperature heat source, so that the temperature of the air cleaner can be suppressed can do. By arranging the exhaust pipe between the air cleaner and the exhaust gas purifying case, the exhaust pipe functions as a heat-conducting member for the exhaust gas purifying case to reduce the influence of the exhaust gas purifying case on the air cleaner can do. Therefore, the temperature rise of the air cleaner due to the heating of the engine, the exhaust gas purifying case, and the like can be suppressed, and deterioration of the air cleaner can be suppressed.

According to the invention of claim 9, since the heat shield plate is disposed between the air cleaner and the exhaust pipe, the air cleaner is disposed above the heat shield plate, and the exhaust gas purifying case and the exhaust pipe are disposed below the heat shield plate The influence of the arrangement of the air cleaner on the exhaust gas purifying case and the exhaust pipe can be further suppressed.

According to a tenth aspect of the present invention, there is provided a structure for installing an exhaust outlet pipe connected to the exhaust gas purifying case and a tail pipe connected to the exhaust outlet pipe, wherein the support member removably attachable to the exhaust gas purifying case supporting leg body, The tail pipe is tightly fixed to the engine frame and the threshing device such that the tail pipe can be adjusted in the vertical direction and the tail pipe is disposed rearwardly from the rear of the threshing device and the engine room, Since the exhaust pipe of the tail pipe is directed upwardly, it is possible to integrally support the exhaust gas purifying case and the exhaust outlet pipe by using the exhaust gas purifying case support leg body as well as to integrally support the exhaust gas purifying case Supporting the tail pipe in accordance with the position of the outlet pipe You can adjust the position. Therefore, not only the components of the exhaust system can be configured in a common manner at a low cost, but also the support rigidity in the exhaust system support structure can be improved. In addition, it is possible to easily absorb a machining error or an assembly error of the exhaust outlet pipe and the tail pipe, and improve the assembly workability of the exhaust outlet pipe and the tail pipe.

According to the eleventh aspect of the present invention, there is provided a structure for disposing a driver's seat above the engine room, wherein the tailpipe is fixed above the engine room rear portion, and an operation socket case is provided at a position between the driver's seat and the tail pipe The exhaust gas that has reached a high temperature by the regeneration treatment is exhausted from above the combine, so that it is possible to prevent ignition of dust and the like remaining in the apparatus as well as the straw crumb of the packaging. In addition, by disposing the operating-unit case on the rear surface of the operating seat, the operating-unit case can function as a car body between the driving seat and the tail pipe, and the operator can be prevented from transmitting heat from the tail pipe .

According to the invention of claim 12, 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 above, Since the inlet of the exhaust gas purifying case is connected to the exhaust side of the engine at a position opposite to the cooling fan provided on the side, the exhaust gas purifying case and the exhaust outlet pipe It can be arranged in a compact manner. Further, the exhaust outlet pipe can be formed long along the longitudinal direction of the exhaust gas purifying case, and the temperature of the exhaust gas can be lowered until exhausted to the outside of the oven or the noise function can be improved. Since the tail pipe can be disposed in the lateral space of the threshing device, the efficiency of disposition of the exhaust gas purifying case, the exhaust outlet pipe, and the tail pipe with respect to each dead space can be improved. In addition, the cooling wind from the cooling fan reduces the temperature of the exhaust gas after the purification treatment on the exhaust gas drawing side (exhaust outlet side) through which the exhaust gas after the purification treatment passes in the exhaust gas purification case, The exhaust gas introduction side (exhaust inlet side) through which the exhaust gas passes is farther 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. Further, the temperature of the exhaust gas after the purification treatment can be lowered and discharged to the outside, and for example, ignition of straw crumbs or the like of the package can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a left side view of a combination combine for preparing a fourth set of the present invention. 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 front upper side.
5 is a perspective view of the operation portion viewed from the left rear side.
6 is a 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 plan sectional view of the engine room cover.
11 is a cross-sectional perspective view of the engine room cover.
12 is a front sectional view of the engine room cover.
13 is an exploded perspective view of the tail pipe connecting portion.
14 is a view showing the arrangement of levers and switches on the side columns.
Fig. 15 is a perspective view of the diesel engine viewed obliquely from the right side toward the front.
16 is a perspective view of the diesel engine viewed from the obliquely left side of its rear side.
Fig. 17 is a left side view of the engine room as another example of the structure. Fig.
Fig. 18 is a perspective view showing an arrangement position of the clutch operating mechanism. Fig.

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 referred to as the left side, and the right side toward the advancing direction is simply referred to as the right side. The combine of the 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 device 3 for taking 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 adjustable around the cutting axis 4a . The traveling base 1 is provided with a trolley unit 5 having a feed chain 6 and a grain tank 7 for storing cereal grains after being thrown. 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 disposed a discharge auger 8 for discharging the grain in the grain tank 7 from the rear of the grain tank 7 upward to the outside of the grain. So that the front portion of the grain tank 8 can be pivoted laterally about the vertical auger 8a of the discharge auger 8 as shown in Fig. An operating section 10 is formed in the right front part of the running vehicle 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 having 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 drive crawler 2 is supported on the front side by the drive 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. [ And supports the ground side.

As shown in Fig. 1 to Fig. 3, the cutting device 3 is provided with a four-piece intermission type popularizing device 31 for popularizing the wrapping non-wrapping piece, and a Barrican type knitting machine for cutting the non- And a curved conveying device 33 for conveying the cut curved portion from the intermittent circulating device 31 to the front end portion (outgoing start end side) of the feed chain 6 are provided. The cut-away section of the package is popularized by the inter-section popularizer 31, the main cut of the uncut section is cut by the cut-off machine 32, and the cut- The cut slices are transported.

The threshing apparatus 5 is provided with a swing motion selecting unit 52 as a swing motion selecting mechanism for selecting a swing motion 51 for curling the swing motion and a droplet falling down below the swing motion 51, And a defrosting fan 61 for discharging the backward movement of the rear portion of the oscillating screening unit 52 to the outside of the room. On the upper surface side of the threshing device 5, an auger stand 125 is installed upright. And the discharge auger 8 is supported by the auger stand 125 at an upper storage position of the running vehicle 1. [ The discharge auger 8 is supported by the auger stand 125 in a substantially horizontal posture. As shown in Fig. 3, the discharge auger 8 at the storage position extends from the right rear corner of the traveling base 1 toward the front left corner.

As shown in Figs. 1 and 2, a straw discharge chain 62 is disposed on the rear end side (feeding end side) of the feed chain 6. The waste straw (staple removed from the grain) that has been transferred from the rear end side of the feed chain 6 to the straw discharge chain 62 is discharged to the rear side of the traveling gas 1 in a long state, And is then discharged to the rear lower side of the traveling vehicle 1. As shown in Fig.

On the lower side of the swing sorting plate 52, a No. 1 conveyor 55 for drawing out the selected curl (the No. 1 sorting material) from the swinging and sorting plate 52 and a curled piece having a grain or straw crumb And a No. 2 conveyor 56 for extracting the No. 2 sorting material. It is also arranged so as to extend in the transverse direction above the rear portion of the traveling crawler 2 when viewed from the side in the order of the first conveyor 55 and the second conveyor 56 from the front side in the traveling direction of the traveling base 1 have.

The swing selection board (52) is configured to sweep the grains falling downwardly of the swing (51) by swinging (gravity separation). The dust (the first sorting material) dropped from the swinging and sorting tray 52 is removed by the airflow from the tuyere pan 53 and dropped onto the No. 1 conveyor 55. At the end portion protruding outward from one side wall (the right side wall in the embodiment) in the vicinity of the grain tank 7 in the threshing device 5 of the No. 1 conveyor 55, a first flow path 57 Are connected in communication. The curl drawn out from the No. 1 conveyor 55 is carried into the grain tank 7 by the No. 1 grain conveyor (not shown) in the first grain cylinder 57 and collected in the interior of the grain tank 7.

The swinging and sorting board 52 is provided with a second sorting object (a re-sorting material for re-sorting including a mixture of grains and straw crumbs) Thereby dropping it. The second sorted material drawn out by the second conveyor 56 is returned to the upper surface side of the oscillating screening unit 52 through the second reducing processing unit 58 and the second processing unit 59 to be re-screened. Straw debris and dust in the offgas from the swash plate 51 are discharged from the rear portion of the traveling base 1 toward the package by the selective air from the tug pan 53 and the suction- .

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 by the engine bed 41 as shown in Figs. The driving force of the diesel engine 20 is transmitted to each part of the forward drive mission case 42 and the threshing device 5 in the front part of the track frame 21 via the pulley and 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 partition plate body 16 as an insulating plate is provided across the side column 15 and covers a part of the upper surface side of the diesel engine 20 by the partition 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 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. [ The outside air (cooling wind) is introduced into the wind tunnel case 46 from the outside opening 46a on the right side of the wind tunnel case 46 and flows from the inside opening 46b on the left side of the wind tunnel case 46 through the radiator 47 The cooling wind that has been subjected to the vibration reduction by the rotation of the cooling fan (48) is sent to the engine room (43) to cool the diesel engine (20) Further, the outer-side opening 46a on the right-hand side of the wind tunnel case 46 is provided with a spreading net. Thereby preventing intrusion of straw crumbs and the like into the inside of the wind tunnel case 46 and further into the engine room 43 due to the existence of the reinforcement net.

The shroud 481 of the embodiment that covers the entire ventilation range portion of the radiator 47 is fixed and the cooling fan 48 is disposed in the opening formed in the shroud 481. That is, a cooling fan 48 is disposed on the left side of the radiator 47, and a fan shroud 481 is disposed between the cooling fan 48 and the radiator 47 to guide the cooling wind. Wind direction plates (cooling air guide plates) 482 and 483 are extended toward the engine compartment 43 on the front and rear sides of the fan shroud 481, respectively. The right side edge of the front side wind deflector plate 482 is connected and fixed to the front surface of the fan shroud 481 to cover the right side of the front side of the diesel engine 20 while the rear side wind deflector plate 483 is disposed on the rear side of the fan shroud 481, And the edge is connected and fixed to cover the rear right side of the diesel engine 20. [

The height of the front side wind deflector plate 482 is made lower than the height of the rear side wind deflector plate 483 and the upper end of the front side wind deflector plate 482 is disposed at a position lower than the lower end of the engine room cover 44. On the other hand, the upper end of the rear side wind deflector plate 483 is substantially flush with the upper end of the opening of the fan shroud 481 (see Fig. 17). The exhaust gas purifying case 50 is disposed above the front side air deflector plate 482 by lowering the upper end of the front side air deflector plate 482 to a lowered level of the regeneration temperature in the exhaust gas purifying case 50 Can be suppressed.

The radiator 47 is opposed to the cooling fan 48 provided at one side of the diesel engine 20 and the cooling air passing through the radiator 47 is guided to the engine room 43 Air guide plates 482 and 483 are provided. As a result, the cooling wind of the radiator 47 can be efficiently supplied into the engine room 43, thereby improving the cooling effect in the engine room 43. The cooling air guide plates 482 and 483 are fixed to both sides of the shroud 481 with a structure in which the shroud 481 is provided on the air exhaust side of the radiator 47. A fresh air supply pipe (fresh introduction pipe) 108 from the air cleaner 49 is disposed between the shroud 481 and the diesel engine 20. The air supply tube 108 is disposed on the shroud 481 side to suppress the temperature rise caused by the heating element such as the exhaust gas purifying case 50 and to prevent the air supply tube 108 from deteriorating.

The radiator 47 has a cooling water pipe 471 for connecting with the cooling water of the diesel engine 20. [ The cooling water pipe 471 is connected to an opening above the radiator 47 so that the cooling water circulated through the diesel engine 20 is returned to the radiator 47. The cooling water pipe 471 is disposed above the air supply pipe 108 so as to cross the air supply pipe 108 connected to the air cleaner 49. The connecting side of the diesel engine 20 of the cooling water pipe 471 is disposed on the diesel engine 20 side of the air supply pipe 108. That is, the cooling water pipe 471 is passed between the air supply duct 108, the diesel engine 20 and the exhaust gas purifying case 50. Therefore, it is possible to provide a proper interval and to extend the cooling water pipe 471 and the air supply pipe 108 in a compact manner, and the cooling water pipe 471 on the return side functions as a heat shield member for the air supply pipe 108.

A pair of left and right engine room pillars 71 are installed upright on the upper side of the upper portion of the running vehicle 1 and a rear plate member 72 is provided between the left and right engine room pillars 71 . 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 protruded to the left side of the diesel engine 20 and the traveling drive belt 73 and the threshing drive belt 74 are connected to the left end (protruding end) of the output shaft 20a . The driving force of the diesel engine 20 is output from the output shaft 20a to the traveling crawler 2 through the driving driving belt 73 and the driving force of the diesel engine 20 is transmitted from the output shaft 20a to the driving shaft of the diesel engine 20 So that the driving force is outputted toward the threshing device 5.

4 to 12, an air cleaner 49 for supplying a diesel engine 20 with a fresh air and an exhaust gas purifying case 50 for processing the exhaust gas of the diesel engine 20 are provided. The upper surface of the engine room cover 44 is formed in a multistage manner in a stepped manner so that the upper surface 441 of the engine room cover 44 is lower and the upper surface 442 of the engine room cover 44 is higher. The engine room cover 44 is connected to the upper end of the front surface 441 provided at the upper end of the front surface 443 upright above the step 10b and is installed upright at an angle upward from the rear end of the front upper surface 441 And the rear upper surface 442 is connected to the upper end of the rear surface 444. An auxiliary cover body 440 is provided between the rear end of the rear portion upper surface 442 of the engine room cover 44 and the upper end portions of the left and right engine room supports 71. The air cleaner 49 is positioned below the rear upper surface 441 of the engine room cover 44 and the auxiliary cover body 442 by fixing the air cleaner 49 to the lower surface of the auxiliary cover body 440.

On the upper surface side of the auxiliary cover member 440, the noise box body 40 is mounted. The inside of the noise canister 40 is communicated with the wind tunnel case 46 via the fresh air introducing pipe body 39 so that the air cleaner 49 is communicated with the interior of the noise box itself 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 fresh air introducing pipe body 39, and the noise box body 40 correspond to the outside air introduction section 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 441 of the engine room cover 44, the driver seat 10b is supported via the seat support mechanism 10d. The exhaust gas purifying case 50 is disposed on the front portion upper surface 441 of the engine room cover 44 and below the partition plate body 16. The exhaust gas purifying case 50 is formed in an elongated cylindrical shape and 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 output shaft 20a of the diesel engine 20 has a parallel shape in the longitudinal direction of the exhaust gas purifying case 50.

A lever case (operating case) 28 for accommodating the work clutch levers 26, 27 is disposed at a rear position of the side column 15. The lever case 28 is fixed at the upper end of the engine room support 71 and disposed on the left side of the electric box 38 behind the driver's seat 10b. That is, the lever case 28 is disposed in front of the tail pipe 84 to cover the rear end side from the middle portion of the tail pipe 84. [ On the right side of the lever case 28, an auger stand 125 for supporting the discharge auger 8 is disposed. The auger stand 125 is fixed to the upper front surface of the threshing device 5. [

With this configuration, the electric box 38, the lever case 28 and the auger stand 125 are arranged side by side behind the driver's seat 10b. Therefore, the electric component box 38, the lever case 28, and the auger stand 125 can function as a heat shielding member that blocks the arrangement from the tail pipe 84, behind the driver's seat 10b. Therefore, it is possible to prevent the heat from the tail pipe 84 from being transmitted to the operator boarding the driver's seat 10b. The filter regeneration operation in which the exhaust gas temperature in the exhaust gas purifying case 50 is maintained at a high temperature can be performed smoothly. In addition, since the lever case 28 is disposed behind the side column 15, the operator is disposed on one side of the operator sitting on the driver's seat 10b, thereby improving the operability of the operator.

The exhaust gas introduction side (exhaust inlet side) of the exhaust gas purifying case 50 is positioned on the lower side of the partition plate body 16 and the exhaust gas purifying case 40 is disposed below the front portion upper surface 441 of the engine room cover 44, (Exhaust outlet side) of the exhaust gas outlet 50 is positioned. 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 the 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 extended between the threshing device 5 and the grain tank 7 and the exhaust 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.

7 to 12, the engine room cover 44 is formed in a double structure, and the left end portions of the internal spaces 44a, 44c of the double-structured engine room cover 44 are opened, And communicates with the inner space 46c of the second housing 46. The engine room cover 44 is an upper surface of a front portion upper surface 441 having a double structure and openings 44d and 44e for sucking outside air are formed at positions which are left and right sides of the driving seat 10b. The front portion upper surface 441 of the engine room cover 44 is formed by protruding left and right portions of the seat supporting mechanism 10d to form the internal spaces 44a and 44b in a double structure and the internal spaces 44a and 44b Openings 44d and 44e are formed on the upper surface of each of the upper and lower surfaces. In addition, the openings 44d and 44e for sucking outside air are provided with spreading nets so as to prevent the entry of straw scraps into the internal spaces 44a and 44b. The opening 44f formed at the right end of the inner space 44a is communicated with the upper opening 46d formed in the wind tunnel case 46. [ On the other hand, a heat insulating plate body 445 is provided below the front portion 441 so as to cover the entire surface of the front portion 441 at the same height position as the partition plate body 16.

The engine room cover 44 has an opening 44g for sucking outside air on the front surface of the front surface 443 of a double structure. In addition, the opening 44g for sucking outside air is provided with a spreading net so as to prevent the entry of straw scraps into the inside space 44c. The front surface 443 of the engine room cover 44 forms an inner space 44c with its upper portion opened and communicates with each of the inner spaces 44a and 44b of the front portion upper surface 441. An opening 44h formed in the right end of the inner space 44c is communicated with a downward opening 46e formed in the wind tunnel case 46. [ On the other hand, a heat insulating plate body 445 is provided behind the front surface 443 to cover the entire surface of the front surface 443. A heat insulating plate body 445 is provided behind the rear face 444 so as to cover the entire rear face 444 like the front face 443.

The wind tunnel case 46 is provided with a plurality of upper and lower outer openings 46a provided over the recovery net and a shielding plate 46f covering the outer openings 46a disposed on the lower side is disposed in the inner space 46c . The shielding plate 46f is provided with a plurality of slits opened in the vertical direction and is detachably provided on the left side surface portion of the wind tunnel case 46. [ The shielding plate 46f covering the outer opening 46a formed at the lower end is disposed at a position facing the inner opening 46b so that the dust entered from the gap of the outer opening 46a or the like is shielded by the shielding plate 46f, . Further, by making the shielding plate 46f detachable, dust can easily be removed from the shielding plate 46f.

The engine room cover 44 having the above-described double structure is constructed such that the inner spaces 44a and 44b of the front portion upper surface 441 and the inner space 44c of the front surface 443 communicate with the wind tunnel case 46 A ventilation path from the wind tunnel case 46 to the engine room 43 is formed. The engine room cover 44 is pressed against the openings 44d and 44e of the front portion upper surface 441 and the openings 44d and 44e of the front portion surface 441 when the inside air side opening 46b side of the wind tunnel case 46 becomes negative by rotation of the cooling fan 48 443).

A part of the outside air supplied from the opening 44d of the front portion upper surface 441 flows from the opening 44d to the right side and flows into the inner space 46c of the wind tunnel case 46 through the opening 44f at the right end. The rest of the outside air supplied from the opening 44d flows into the inner space 44c of the front surface 443 communicating in front of the inner space 44a by flowing in front of the inner space 44a. The outside air supplied from the opening 44e of the front portion upper surface 441 flows into the inner space 44c of the front surface 443 communicating in front of the inner space 44a by flowing forward in the inner space 44b . On the other hand, the outside air supplied from the opening 44g of the front face 443 joins with the outside air introduced from the inside spaces 44a and 44b and flows to the right side, and flows through the opening 44h at the right end, (46c).

In this manner, cooling air by the outside air flows through the internal spaces 44a to 44c of the double-structure engine room cover 44. The heat on the side of the engine compartment 43 is absorbed by the operating seat 10b or the engine room cover 44 on the upper surface side of the engine room cover 44 by the heat insulating action of the internal space 44d of the engine room cover 44, It is possible to suppress transmission to the step 10a on the front surface side. Further, even when the configuration in which the outside air is introduced from the engine room cover 44 allows the upper and the front of the exhaust gas purifying case 50 to be covered with the engine room cover 44, the temperature rise outside the engine room cover 44 can be suppressed And it is possible to prevent the heat in the engine room 43 from being transmitted to the operator on the driver's seat 10b.

The driver's seat 10b is disposed on the upper surface side of the engine room cover 44 covering the engine room 43 as described above. The engine room cover 44 has openings 43d, 44e and 44g which are below the driver's seat 10b and which have a double-layered structure covering the upper portion and the front portion of the exhaust gas purifying case 50, . Therefore, the temperature rise outside the engine room cover 44 can be suppressed, and the heat in the engine room 43 can be prevented from being transmitted to the operator on the driver's seat 10b. Therefore, the exhaust gas purifying case 50 can be supported between the lower surface of the driving seat 10b and the upper surface of the diesel engine 20, and the mounting width of the driving seat 10b and the diesel engine 20 in the left- And the exhaust gas purifying case 50 can be installed compactly on the upper surface side of the diesel engine 20. [ Further, the filter regeneration operation in which the temperature of the exhaust gas in the exhaust gas purifying case 50 is maintained at a high temperature can be performed smoothly.

The exhaust gas purifying case 50 is placed in the engine compartment 43 below the driving seat 10b and the air cleaner 49 is installed in the engine room 43 at the rear of the driving seat 10b have. Therefore, the exhaust gas purifying case 50, which becomes hot, and the air cleaner 49, which introduces the outside air, can be arranged compactly adjacent to each other above the diesel engine 20. For example, both the diesel engine 20 and the air cleaner 49 can be adjacent to the cooling wind introduction portion of the diesel engine 20, so that outside air can be supplied from the cooling wind introduction portion of the diesel engine 20 to the air cleaner 49 Can be easily introduced.

The radiator 47 is arranged adjacent to the diesel engine 20 and the inner space of the double engine room cover 44 is communicated with the outside air suction side of the radiator 47. Therefore, the inner spaces 44a to 44c of the engine room cover 44 can be ventilated using the outside air suction force of the radiator 47 (cooling fan 48). Therefore, it is not necessary to provide a ventilation fan or the like for allowing air in and out of the internal spaces 44a to 44c of the engine room cover 44 to be installed at low cost.

As shown in Figs. 5 to 8, 12 and 13, 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 apparatus 5 and the grain tank 7). That is, the exhaust outlet pipe 82 has a crank shape when seen from the plane. 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 from the plane. 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 discharges the exhaust gas upwardly and rearwardly between the threshing device 5 and the grain tank 7. The tail pipe 84 is bent downward at the front end side and bent at the rear end side so as to extend rearward from the upper rear portion of the traveling crawler 2 while extending the middle portion upward. 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 opens rearward obliquely upward. The rear end side of the tail pipe 84 has a configuration in which the rear side is directed to the side of the grain tank 7 after bending the front side on the side of the threshing device 5 and is bent in a C shape when viewed from the plane. The rear end side of the tail pipe 84 has a bent shape in which the upper end of the No. 1 barrel 57 connected to the grain tank 7 is bypassed.

And a middle support bracket 185 is welded and fixed to the longitudinal middle portion of the crank-shaped tail pipe 84 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 84 is attached to the attachment plate 186 of the left engine room support 71 through a substantially L-shaped connection bracket 187 so as to be bolt-fastened. A pair of control slots 190 are vertically arranged vertically on the attachment plate 186 of the left engine room support 71 and are connected to the vertical piece portions of the connection bracket 187 through both of the control slots 190 And the attachment plate 186 is fixed so as to be vertically adjustable. A pair of adjustment slots 191 are formed in the middle support bracket 185 of the tail pipe 184 so as to extend in the left and right directions and are fixed to both sides of the connection bracket 187 through the two adjustment slots 191 And the middle support bracket 185 is fixed to adjust the left and right positions.

An approximately L-shaped standing bracket 188 is welded to the rear end side of the tail pipe 84. A substantially L-shaped connecting bracket 189 is fastened to the right side surface of the threshing device 5. [ And the horizontal piece portion of the intake bracket 188 is bolted to the connection bracket 189 fixed to the right side of the upper surface of the threshing device 5 from above. A pair of adjustment slots 192 are formed in the lateral piece of the mounting bracket 188 so as to be longitudinally arranged in the left and right directions and the lateral sides of the mounting bracket 188 and the connecting bracket 189 And the lateral piece is fixed to adjust the left and right position. A pair of adjustment slots 193 are arranged on the vertical piece of the connection bracket 189 so as to be longitudinally arranged in the longitudinal direction of the connection bracket 189 and the vertical piece of the connection bracket 189 is inserted through the adjustment slots 193, And the upper and lower positions are adjustably fixed on the upper right side.

The upper and lower positions of the tail pipe 84 can be fixed with respect to the threshing device 5 and the engine room support 71 so that the machining error and the assembly error of the exhaust outlet pipe 82 and the tail pipe 84 It can be easily absorbed. As a result, the assembling workability of the exhaust outlet pipe 82 and the tail pipe 84 can be improved. In addition, the thrashing device 5 and the engine room support 71 can be used as a support member of the tail pipe 84 to manufacture the support structure of the tail pipe 84 at low cost.

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. 6, 7 and 9. And the exhaust inlet of the tail pipe 84 is fitted in a loosely fitting shape at 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. In addition, since the tail pipe 84 can be cut from the vibration system of the diesel engine 20, there is a possibility that the tail pipe 84 may be damaged 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. 5 to 8 and 12, supports the exhaust inlet side of the tail pipe 84 at approximately the same height as the height of the exhaust gas purifying case 50 above the diesel engine 20, And the exhaust outlet side of the tail pipe 84 is supported at a position higher than the upper surface. The rear end side of the tail pipe 84 is disposed between the threshing device 5 and the grain tank 7 so as to cover the upper side of the tuyere pulley 89 for inputting the driving force of the diesel engine 20 to the threshing device 5. [ . The outside air warmed by the arrangement of the tail pipe 84 is sucked into the tear fan 53 as the sorting air by the shielding in the tail pipe 84 and the pulley cover plate body (tuyere pulley cover)

And a pulley 86 connected to the tilting input shaft 85 is disposed on the front right side of the threshing device 5. [ The pulley 86 is linked to the tie pulley 89 to transmit the driving force of the engine 20 transmitted to the tie pulley 89 to the torque input shaft 85. The rake input shaft 85 is connected to the rotating shaft 51a of the swash plate 51 via the bevel gear mechanism 85a and transmits the rotary drive transmitted by the swash plate pulley 86 to the swash plate 51. [ The pulley 86 is disposed at a position between the threshing device 5 and the engine room 43 and covers the front and the upper sides thereof with a pulley cover plate (pulley cover) 87.

The cutting device 3 is configured to be vertically rotatable around a horizontally long cutting input pipe 130 which is supported by a cutting stowage 133 at the front of the threshing device 5. The power from the tilting input shaft 85 can be transmitted to the cutting input shaft 132 in the cutting input pipe 130 through the inlet clutch 131 that transmits a certain rotational force to the cutting device 3. [ That is, by directly transmitting the power from the diesel engine 20 to the cutting device 3 without passing through the mission case 42, the cutting device 3 is forcedly driven at a constant high rotation speed regardless of whether the vehicle speed is fast or slow And the like.

The intake clutch 131 includes a clutch actuating mechanism 151 having a sector gear 141 (see Fig. 17) which is a pivoting member rotatable around a pivot shaft by driving of the single electric motor 140, ). The clutch actuating mechanism 151 for operating the intake clutch 131 is fixed to the front right frame of the thrashing device 5 like the turning point 153 of the intake clutch 131, . Thus, the link mechanism 152 connecting the intake clutch 131 and the clutch actuating mechanism 151 can be made compact.

The tail pipe 84 has its middle portion positioned in the right chamber of the pulley 86. The rotary pulley 86 is provided with a rotary vane 90 coaxial with the tilting input shaft 85 so as to face the tail pipe 84. Therefore, the rotating blades 90 are rotated in accordance with the rotation of the pulley 86, so that the warmed air in the engine room 43 can be exhausted to the side of the threshing device 5. The heated air passing through the engine room 43 is guided to the space surrounded by the tail pipe 84, the pulley cover 87 and the threshing device 5. [ The outdoor air warmed by the arrangement of the tail pipe 84 is sucked by the tug fan 53 as the selective air.

A negative pressure is generated in the space between the threshing device 5 and the tail pipe 84 by rotating the rotary vane 90 together with the pulley 86. [ Therefore, the outside air on the side of the threshing device 5 flows toward the swing pulley 86, and the clutch operating mechanism 151 disposed on the lower left side of the swing pulley 86 can be cooled. As a result, it is possible to prevent excessive heating of the clutch actuating mechanism 151, thereby preventing the failure of the electric motor 140 based on the warming.

The exhaust gas purifying case 50 and the exhaust gas outlet pipe 82 are arranged above the diesel engine 20 so as to extend in parallel with the axial direction of the output shaft 20a of the diesel engine 20 have. Therefore, the exhaust gas purifying case 50 and the exhaust outlet pipe 82 can be compactly arranged using the dead space on the upper surface side of the diesel engine 20. [ Further, it is possible to form the exhaust outlet pipe 82 in a longitudinal direction along the longitudinal direction of the exhaust gas purifying case 50, and to lower the temperature of the exhaust gas until the exhaust gas is discharged to the outside, or to improve the noise function It becomes possible. The tail pipe 84 can be disposed in the side space of the threshing device 5 after the exhaust gas purifying case 50 and the exhaust outlet pipe 82 are disposed in the space on the upper surface side of the diesel engine 20, 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.

An air cleaner 49 is arranged on the rear upper side of the exhaust gas purifying case 50 so as to be parallel to the exhaust gas purifying case 50 when viewed from the plane, An exhaust gas outlet pipe 82 connected to the exhaust gas purifying case 50 and the air cleaner 49 is provided in parallel with the exhaust gas purifying case 50 and the air cleaner 49. The air cleaner 49 is disposed apart from the exhaust gas purifying case 50 serving as a high-temperature heat source and the exhaust outlet pipe 82 is disposed between the air cleaner 49 and the exhaust gas purifying case 50 The influence of the arrangement of the exhaust gas purifying cases 50 on the air cleaner 49 can be reduced.

A lever point shaft mechanism 17 for supporting the work clutch lever 14 and the like is disposed below the side column 15 and on the upper side of 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 cooperation with the operation of the work clutch lever 14 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 left side surface of the side column 15. The clutch operation link mechanism 18 is located between the partition plate body 16 and the exhaust gas purifying case 50 and the side column cover 15a.

An exhaust gas purifying case 50 is disposed so as to protrude downward from the side column 15 and is provided across the side column 15 with a partition plate (heat plate) 16 interposed therebetween. Then, the partition plate body 16 is disposed at a height position in the vicinity of the double structure of the engine room cover 44. Therefore, the wire or the harness on the side of the side column 15 can be easily protected by the partition plate body 16, which is the heat shielding plate, against the heating of the exhaust gas purifying case 50 and the like. It is also possible to prevent exhaust from the guide grooves or the like of the levers 12 to 14 opened in the operating plate member on the upper surface of the side column 15 toward the operator of the driver's seat 10b.

The peripheral speed lever 12 and the negative speed change lever 13 are arranged in the left and right positions at the right front position of the driver's seat 10b as shown in Fig. 14 in the side column 50. The auxiliary speed change lever 13 A gas posture regulating lever 161 for setting the inclination angle of the running vehicle 1 in the left-right direction or the front-rear direction is disposed. That is, the peripheral speed lever 12, the speed change lever 13, and the gas posture control lever 161, which are the operating levers of the traveling system, are arranged at a position near the steering wheel 10c in front of the side column 50 . The side column 50 is provided with a liquid crystal display 162 in front of the peripheral speed lever 12 and displays the traveling state and the working state of the combine as a working machine on the liquid crystal display 162.

As shown in Fig. 14, the side column 15 has the work clutch lever 14 disposed at a position behind the peripheral speed lever 12. As shown in Fig. The work clutch lever 14 serves as one lever for operating the power step of the cutting device 3 and the lever for operating the power step of the threshing device 5. The work clutch lever 14 has a guide groove formed on the upper surface of the side column 15 So that it can be inclined in the longitudinal direction. When the work clutch lever 14 is positioned at the rear end of the guide groove, the power to both the cutting device 3 and the threshing device 5 is cut off. When the work clutch lever 14 is placed in the middle of the guide groove, power is transmitted only to the threshing device 5 and the work clutch lever 14 is positioned at the front end of the guide groove, ) To transmit power to both sides.

14, the side column 15 is provided with an accelerator dial 163, a forward rotation control switch 164, and a regeneration switch 163 in order from the front side in the vicinity of the driver's seat 10b relative to the arrangement position of the work clutch lever 14 165 are disposed. The accelerator dial 163 is for manipulating and controlling the number of revolutions of the diesel engine 20. The forward rotation control switch 164 is for operating the forward rotation control to keep the rotational speed of the diesel engine 20 constant. The regeneration switch 165 is for selectively operating the exhaust gas purifying device (exhaust gas purifying case) 50. The accelerator dial 163, the forward rotation control switch 164, and the playback switch 165 are provided on the left side of the driver's seat 10b so that the operator can easily use the same.

The accelerator dial 163 can manually adjust the engine speed and is used when the number of revolutions of the engine 20 during operation is kept constant. It is preferable to always keep the rotation speed of the engine 20 during the operation because the performance of the threshing is deteriorated when the rotation speed of the engine 20 is changed during the operation and the operation dial is used during the work while the rotation speed is maintained by the accelerator dial 163 . Further, the forward rotation control switch 164 performs on / off of the eco mode so as to constantly maintain the rotation of the diesel engine 20 even when the load of the threshing device 5 fluctuates, so as to always perform stable threshing / sorting.

The regeneration switch 165 is constituted by a switch to which a regeneration lamp is attached and informs the operator that the clogging state of the exhaust gas purification apparatus (exhaust gas purification case) 50 exceeds the limit amount by blinking the regeneration lamp. Then, the operator performs the regeneration of the exhaust gas purifying device 50 by turning on the regeneration switch 165 to burn the PM in the exhaust gas purifying device 50. When the regeneration of the exhaust gas purifier 50 is being executed, the regeneration switch 165 lights the regeneration lamp to inform the operator that the regeneration of the exhaust gas purifier 50 is being executed.

Next, the structure of the diesel engine 20 will be described with reference to Figs. 15 and 16. Fig. As shown in Figs. 15 and 16, 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). An exhaust manifold 83 is disposed on the other side (front side) of the cylinder head 91. That is, in the diesel engine 20, the intake manifold 19 and the exhaust manifold 83 are disposed on both sides of the output shaft 20a. 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. 15 and 16, the flywheel housing 93 is fixed to the left side face of the cylinder block 92. [0064] As shown in Fig. A flywheel (94) is installed in the flywheel housing (93). The driving force of the diesel engine 20 is taken 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 connected to the cooling fan 48. [ It is located near.

With this configuration, the cooling wind 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 distant from the cooling fan 48 so that the cooling air is hard to reach. Therefore, the exhaust gas before the purge process can be kept at a high temperature, and the purge performance of the exhaust gas purge case 50 can be appropriately maintained. Further, the temperature of the exhaust gas after the purification treatment can be lowered and discharged to the outside, and for example, ignition of straw crumbs or the like of the package can be prevented.

As shown in Figs. 15 and 16, the intake manifold 19 is provided with an exhaust gas recirculation device (EGR device) 96 for introducing exhaust gas for recirculation. 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. The fresh air (external air) sucked into the air cleaner 49 and damped and purified is sent to the intake manifold 19 through the compressor case 107 of the turbocharger 105 and the exhaust gas recirculation device 96, 20).

A part of the exhaust gas discharged from the diesel engine 20 to the exhaust manifold 83 is returned to the respective cylinders of the diesel engine 20 through the exhaust gas recirculation device 96 and the intake manifold 19. [ do. Therefore, 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 consumption rate of the diesel engine 20 is improved.

A common rail 99 is connected to a fuel pump 98 connected to a fuel tank (not shown) for each injector 97 for 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). The 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 the cylindrical common rail 99. The high-pressure fuel is temporarily stored in the common rail 99 and supplied to each cylinder (cylinder) of the diesel engine 20 via the common rail 99.

The fuel of the diesel engine 20 is pressurized 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, the injection pressure, the injection timing, and the injection period (injection amount) of the fuel are controlled with high precision by electronically controlling the fuel injection valves of the respective injectors 97. Therefore, nitrogen oxide (NOx) discharged from the diesel engine 20 can be reduced.

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. And 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 supply air introduction 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 that has been damped and cleaned by the air cleaner 49 is sent from the compressor case 107 to the exhaust gas recirculation device 96 via the supercharging pipe 109, and thereafter is supplied to each cylinder of the diesel engine 20 .

15 and 16, an exhaust gas purifying apparatus for purifying exhaust gas discharged from each cylinder of a diesel engine 20 includes an exhaust gas purifying case (not shown) for removing particulate matter in the exhaust gas of the diesel engine 20 50 (diesel particulate filter (DPF)). As shown in Fig. 15, 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 carbon monoxide (CO), the hydrocarbon (HC), the particulate matter PM and the nitrogen oxide material (NOx) in the exhaust gas of the diesel engine 20 are reduced by the exhaust gas purifying case 50.

The exhaust gas purifying case 50 is formed as a horizontally elongated 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 in the exhaust gas purifying case 50 is provided and 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 purification treatment is provided. The left and right side surfaces of the cylinder head 91 detachably support the other end of the exhaust gas purifying case 50 in the exhaust gas moving direction through the left support leg body 113 and the right support leg body 114. [ 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 lateral 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) as described above. 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 viewed from above, . 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 and the partition plate 16 of the engine room cover 44 and above the exhaust manifold 83. [

With this configuration, it is possible to easily connect the intake air introduction side of the air cleaner 49 to the outside air introduction portion (wind tunnel case 46, etc.) disposed outside the engine room 43, The exhaust gas purifying case 50 and the air cleaner 49 can be compactly arranged in the outer shape (within the front-rear width and the right-left width) when viewed from the plane of the diesel engine 20 by effectively utilizing the dead space. 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, It is offset up and down to follow the step shape.

A turbo supercharger 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. An exhaust gas recirculation device 96 (EGR device) for refluxing the exhaust gas to the intake system (intake manifold 19) of the diesel engine 20 is disposed above the intake manifold 19. 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 arranged vertically above the intake manifold 19.

The exhaust gas purifying case 50 and the turbo supercharger 105 related to the exhaust system are provided with the air cleaner 49 and the exhaust gas recirculation device 96 associated with the intake system on the side of the exhaust manifold 83, And are aligned vertically on the manifold 19 side. Therefore, it is easy to grasp the arrangement of the exhaust system members (the exhaust gas purifying case 50 and the turbo supercharger 105) and the arrangement of the suction machine members (the air cleaner 49 and the exhaust gas recirculation device 96) It is possible to improve the maintenance and improve the maintenance. It is also easy to treat the exhaust system piping (exhaust outlet pipe 82 and the like) and the intake system piping (such as the air supply pipe 108) 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.

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 backward and to the rear end side of the exhaust outlet pipe 82, And the bracket 116 is welded and fixed. The outlet pipe bracket 116 is bolted to the rear end side of the exhaust support plate 115 and accommodates the outlet side of the exhaust outlet pipe 82 at the bent portion provided at the upper edge of the outlet pipe bracket 116. That is, the exhaust outlet pipe 82 is supported through 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 exhaust 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 support leg body 113 also as a support member of the exhaust outlet pipe 82 so that the support structure of the exhaust outlet pipe 82 And can be manufactured at a low cost. It is possible to contribute to the improvement of the support rigidity of the exhaust outlet pipe 82.

One end (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 is connected to the exhaust gas introducing side (The rear end side) of the exhaust outlet pipe is connected to the left support leg body 113 for supporting the exhaust gas purifying case 50. Therefore, the exhaust outlet pipe 82 is formed long along the longitudinal direction of the exhaust gas purifying case 50 And it is possible to lower the temperature of the exhaust gas until the exhaust gas is discharged to the outside, or to improve the noise function.

The heat shield plate 491 may be disposed between the air cleaner 49 and the exhaust outlet pipe 82 in the engine room 43 as shown in Fig. 17 in addition to the configuration according to the above-described embodiment . The air cleaner 49 is disposed on the upper side of the heat shield plate 491 and the exhaust gas purifying case 50 and the exhaust outlet pipe 82 are disposed on the lower side of the heat shield plate 491. [ Therefore, since the arrangement from the exhaust gas purifying case 50 and the exhaust outlet pipe 82 can be heated by the heat shield plate 491, the exhaust gas purifying case 50 and the exhaust outlet pipe 82 can be further suppressed. The heat shield plate 491 extends from the engine room cover 44 into the engine room 43. 17, one end of the heat shield plate 491 is fixed to the auxiliary cover body 440, and the front and the bottom of the air cleaner 49 are covered with the heat shield plate 491. [

18, the clutch actuating mechanism 151 is connected to the cut-off pedestal 133, and the clutch actuating mechanism 151 is disposed on the lower left side of the pulley 86. In this embodiment, It may be disposed on the base 1 side. That is, the clutch actuating mechanism 151 is fixed to the rear surface of the cutting unit 133 and disposed below the cutting input pipe 130. A link mechanism 152 having one end connected to the sector gear 151 is extended upward and the other end of the link mechanism 152 is connected to the input clutch 131. 18, the clutch operation mechanism 151 is disposed at a position equivalent to the flywheel 94 of the diesel engine 20 (see Fig. 5) It is difficult to be influenced by the influence of the heat.

That is, in the embodiment of FIG. 18, the air heated by the rotary blades 90 rotating together with the pulley 86 flows through the engine room 43, flows upward, It is possible to suppress the heating of the clutch operating mechanism 151 being located. As a result, excessive heating of the clutch operation mechanism 151 can be prevented, and failure of the electric motor 140 based on warming can be prevented. It is also possible to dispose the clutch operating mechanism 151 in the vicinity of the exhaust side of the engine room 43 by arranging the clutch operating mechanism 151 on the side of the traveling base 1 as shown in Fig. The number of parts can be reduced.

In addition, the configuration of each part 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

Claims (12)

A treading device for treading the cut-out curved road cut by the cutting device, a traveling vehicle on which the cutting device and the tractive device are mounted, and an engine room on the traveling airframe 1. A combine comprising an engine and an exhaust gas purifying case for processing the exhaust gas of the engine,
Wherein a driving seat is disposed on an upper surface side of an engine room cover covering the engine room, and the engine room cover has a double structure in a lower portion of the driving seat and covering the upper portion and the front portion of the exhaust gas purifying case, And a plurality of openings. The method according to claim 1,
Wherein the double structure portion of the engine room cover is communicated with the outside air suction side of the radiator and a plurality of openings are formed on the upper surface and the front surface of the double structure portion. 3. The method according to claim 1 or 2,
Wherein the exhaust gas purifying case is disposed so as to protrude downward from the side column and is provided so as to extend over the side of the side column so as to extend over the side of the side wall of the engine room, Wherein the engine compartment cover is disposed at a height position in the vicinity of the double structure of the engine room cover. 3. The method of claim 2,
And a cooling air guide plate for guiding the cooling air passing through the radiator to the engine room is provided on the cooling fan provided on one side of the engine. 5. The method of claim 4,
A cooling fan for the engine is disposed in an opening formed in the shroud, and the cooling air guide plate is fixed to both sides of the shroud to extend toward the engine room. Wherein 6. The method of claim 5,
Further comprising an air cleaner for introducing outside air into the engine,
A fresh air introduction pipe from an air cleaner is disposed between the shroud and the engine,
Wherein a cooling water pipe for connecting the cooling water passage of the engine to the radiator is disposed so as to intersect above the fresh water introduction pipe. The method according to claim 6,
And a thruster pulley for transmitting the engine output to the threshing apparatus is disposed on the side opposite to the radiator in the engine room, wherein the thruster pulley is provided with a rotary vane coaxially. The method according to claim 6,
The air cleaner is arranged on the rear upper side of the exhaust gas purifying case in an arrangement parallel to the exhaust gas purifying case when viewed from a plane, and an exhaust pipe connected to the exhaust side of the exhaust purifying case is connected to the exhaust gas purifying case And the air cleaners are provided extending in parallel to each other. 9. The method of claim 8,
And a heat shield plate is disposed between the air cleaner and the exhaust pipe. The method according to claim 1,
A exhaust pipe connected to the exhaust gas purifying case, and a tail pipe connected to the exhaust pipe, wherein the exhaust pipe is supported by a supporting member detachable from the exhaust gas purifying case supporting leg,
The tail pipe is tightly fixed to the engine frame and the threshing device so as to be adjustable in the vertical direction and the tail pipe is disposed rearwardly from the rear of the threshing device and the engine room, Is upwardly directed. 11. The method of claim 10,
Wherein the tail pipe is fixed above the engine room rear portion and the operation tool case is disposed at a position between the driver's seat and the tail pipe. . The method according to claim 10 or 11,
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 from the plane,
Wherein an inlet of the exhaust gas purifying case is connected to an exhaust side of the engine at a position opposite to a cooling fan provided on a side portion crossing the output shaft of the engine.

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