JP2019076034A - Harvester - Google Patents

Abstract

[PROBLEMS] To enable a plurality of devices around an engine to be compactly arranged vertically. An engine 21 as a power source and a radiator 88 for cooling the engine are provided side by side, and the exhaust of the engine 21 is purified on the side opposite to the side where the radiator 88 is located with respect to the engine 21. The exhaust treatment device 89 that is arranged side by side with the engine 21 prevents the installation space in the vertical direction from becoming large. [Selection] Figure 14

Description

  The present invention relates to a harvester, such as a combine, a corn harvester, etc., which uses an engine to drive each part to harvest crops.

  In the above-mentioned harvester, an exhaust treatment device for purifying the exhaust gas of an engine has recently been mounted. And conventionally, it was equipped in the state where an exhaust processing device is located above the engine (for example, refer to patent documents 1).

JP, 2017-74026, A

  In the above-described conventional configuration, the exhaust treatment device, which is a large device, is positioned above the large device, so the installation space of the engine and a plurality of devices attached to the engine in the vertical direction is large. As a result, the location of the engine may be limited.

  Therefore, it has been desired to be able to deploy a plurality of devices around the engine in a compact manner in the vertical direction.

The characteristic configuration of the harvester according to the present invention is
An engine as a power source and a radiator for engine cooling are provided side by side,
On the side opposite to the side where the radiator is located with respect to the engine, an exhaust treatment device for purifying the exhaust gas of the engine is provided in a side-by-side manner with the engine.

  According to the present invention, the engine and the radiator are provided side by side. The radiator needs a large cooling area to cool the engine, so it becomes large in the vertical direction, but being installed side by side with the engine does not increase the installation space in the vertical direction .

  Since the exhaust treatment device is provided on the side opposite to the side where the radiator is located, the radiator and the exhaust treatment device are located laterally apart from each other with respect to the engine. As a result, there is no risk that the exhaust of the engine, which is at a high temperature, adversely affects the radiator. Moreover, the exhaust gas treatment apparatus, which is a large-sized apparatus, is provided side by side with the engine, so that the installation space in the vertical direction does not increase.

  Therefore, it has become possible to compactly arrange a plurality of devices around the engine in the vertical direction.

  In the present invention, it is preferable that a cylinder head is provided on the upper part of the engine, and the exhaust treatment device is provided in a side-by-side manner with the cylinder head.

  According to this configuration, the cylinder head of the engine is narrower than the lower crank accommodating portion, so the exhaust processing device can be compact in a state in which it is brought close to the engine by using the vacant area on the side. Easy to deploy. In addition, since the exhaust port is located above the cylinder head, there is also an advantage that the exhaust passage connecting the exhaust port and the exhaust treatment device can be shortened to simplify the configuration.

In the present invention, the output shaft of the engine extends outward from the flywheel,
An output rotating body for power transmission is provided at a position on the free end side of the output shaft with respect to the flywheel,
It is preferable that the exhaust gas treatment device is provided in a state of being positioned between a flywheel housing covering the periphery of the flywheel and the output rotating body in the axial direction of the output shaft.

  According to this configuration, the exhaust treatment device can be used as an engine as much as possible without interfering with the large-sized flywheel housing covering the large diameter flyhole and the output rotating body on which the power transmission transmission belt and the like for power extraction are wound. It can be deployed in close proximity.

In the present invention,
A bearing member for supporting a free end side portion of the output shaft relative to the flywheel is provided in a state of being connected to the flywheel housing,
It is preferable that a placement support portion for placing and supporting the exhaust treatment device is provided on the upper portion of the bearing member.

  According to this configuration, by supporting the free end side portion of the output shaft by the bearing member, even if the transmission belt is wound around the output rotating body and a cantilevered tensile force acts, deformation is prevented. Thus, the output shaft can be stably supported. And since the exhaust treatment device is supported by the bearing member, the exhaust treatment device can be supported by effectively utilizing the bearing member without complicating the configuration such as providing a dedicated support member.

  In the present invention, it is preferable that the output rotating body is provided in a state of entering below the placement support portion and the exhaust treatment device.

  According to this configuration, the output rotating body is provided so as to overlap the mounting support portion and the exhaust treatment device along the axial direction. Even if the mounting support and the exhaust treatment device become large along the axial direction, the output rotating body can be disposed as close as possible to the engine.

In the present invention, a cylinder head is provided at the top of the engine,
The radiator, the engine, and the exhaust treatment device are provided side by side along an axial center direction of an output shaft of the engine.
An air cleaner for supplying combustion air to the engine is provided in a state where the air cleaner is positioned on the lateral side orthogonal to the axial direction with respect to the engine.
A position above the air cleaner is provided with a precleaner for removing dust in the air in advance before being supplied to the air cleaner.
It is preferable that the precleaner be provided side by side with the cylinder head in the orthogonal direction.

  According to this configuration, since the air cleaner and the precleaner are provided in a state of being side by side with the engine in the orthogonal direction orthogonal to the arranging direction of the radiator, the engine and the exhaust treatment device, the installation space in the vertical direction is large. Each of the above devices can be deployed without any problem.

In the present invention, an engine support frame for supporting the engine is provided,
The engine support frame is provided with an extending portion which extends to a position below the air cleaner,
Preferably, an air cleaner support frame for supporting the air cleaner is provided upright on the extending portion.

  According to this configuration, the air cleaner can be firmly supported using the engine support frame provided in a highly rigid state to support the engine.

In the present invention, the engine, the radiator, the exhaust treatment device, and a driving part cover that covers the air cleaner are provided.
Preferably, the cover portion on the air cleaner side of the drive unit cover is configured to be openable.

  According to this configuration, at the time of operation, the driving unit cover can prevent dust and the like from falling on each device around the engine. And, while the air cleaner needs maintenance work such as cleaning regularly, in the case of the maintenance work, the cover part on the air cleaner side of the driving part cover is opened, so it is easy without any trouble. Can do it.

In the present invention, a cooling fan for generating a wind for cooling the radiator is provided between the radiator and the engine,
It is preferable that the ventilation part which can ventilate is provided in the side part by the side of the said radiator among the said motive power part covers, and the side part by the side of the said exhaust processing apparatus.

  According to this configuration, when the cooling fan is activated, the outside air flows in through the ventilation portion provided on the side portion on the radiator side to cool the radiator. Then, the cooling air passes through the inside of the motive power unit cover and is discharged to the outside through the vent provided on the side of the exhaust treatment device.

  In this way, the air generated by the cooling fan can be used to cool the surroundings of the exhaust treatment device and to discharge high temperature air outward.

In the present invention, there are provided a threshing device for threshing a reaping grain crusher, and a grain tank for storing grains that have been subjected to grain throttling treatment by the threshing device.
The grain tank and the engine are arranged in the front-rear direction with the grain tank located on the front side of the machine above the threshing device and the engine located on the rear side of the machine,
It is preferable that the exhaust gas treatment device is provided on one side of the engine in the left-right direction.

  According to this configuration, the grain tank and the engine are provided in the upper part of the threshing device. As described above, since the engine is provided above the threshing device, for example, even if the threshing device is made larger to improve the processing capacity, the engine is located laterally to the side of the threshing device. There is little concern that the dimensions in the width direction of the fuselage will increase. Moreover, since the engine is disposed above the threshing device and utilizing the empty space behind the grain tank, there is a risk that the vertical dimension of the airframe may be increased even if the engine is provided upward. Few.

  Since the engine is a small device compared to the grain tank, the lateral side of the engine on the rear side of the grain tank is a vacant area. Therefore, the exhaust treatment device can be provided in a state in which there is little possibility that the size in the vertical direction of the airframe may be increased by effectively using the empty area.

It is a whole right side view of a combine. It is a whole left side view of a combine. It is a top view of a combine. It is a top view which shows the body support structure. It is a perspective view showing an airframe support structure. It is a side view which shows the support structure of a threshing apparatus. It is a top view which shows the support structure of a threshing apparatus. It is a vertical front view of a threshing apparatus. It is a vertical front view which shows the support structure of a threshing apparatus. It is a perspective view showing composition of a sorting part frame and a fuel tank frame. It is a whole top view in the state where a grain tank and motive power part cover were removed. It is a top view of an engine support frame. It is a front view of an engine support frame. It is a whole rear view in the state where the motive power part cover was removed. It is a partially notched rear view of a motive power part. It is a vertical side view of a drive part. It is a perspective view which shows the removal state of the motive power part cover of a motive power part.

  Hereinafter, based on a drawing, the case where an embodiment of a harvester concerning the present invention is applied to a common type combine is explained.

〔overall structure〕
As shown in FIGS. 1 to 3, the combine harvester threshs the crop cut by the reaper transport unit 1 which cuts the crop and transports it backward, the operation unit 3 covered by the cabin 2, and the reaper transport unit 1 Threshing device 4 for performing the process, a grain tank 5 for storing grains obtained by threshing with the threshing device 4, a driving unit 6 having an engine 21 as a power source, left and right traveling located on both sides of the machine Part 7 is provided. The left and right traveling units 7 respectively have a front wheel 8 as a front traveling device that can not be steered and is rotationally driven, and a rear wheel 9 as a rear traveling device that can be steered.

  In this embodiment, when defining the longitudinal direction of the aircraft, it is defined along the traveling direction of the aircraft in the working state, and when defining the left-right direction of the aircraft, the left and right are defined in the state viewed in the traveling direction of the aircraft. . That is, the direction shown by the code (F) in FIGS. 1, 2 and 3 is the front side of the machine, and the direction shown by the code (B) in FIGS. The direction indicated by the symbol (L) in FIG. 3 is the left side of the machine, and the direction indicated by the symbol (R) in FIG. 3 is the right side of the machine.

  The reaper transport unit 1 is supported by a reaper elevating cylinder 10 as an elevating actuator at a front portion of the machine body so as to be driven to move up and down around a horizontal fulcrum P1. The reaper transport unit 1 reaps a crop to be planted and gathers the cropped crop at the central portion in the cutting width direction, and the cropped header 11 directs the crop cut and gathered at the central portion to the threshing device 4 at the rear of the aircraft. And a feeder 12 for carrying.

  As shown in Figures 1, 2, 3 and 20, the reaper header 11 includes a rotating reel 13 that scrapes the tip side of the crop to be reaped toward the back, and a hair clipper type that cuts and reaps the plant origin of the crop. A cutting blade 14 and a transverse feed auger 15 or the like are provided to gather and collect the cropped crop in the central portion in the cutting width direction.

  Although not shown in the drawings, in the feeder 12, a pair of left and right endless rotation chains are wound and stretched in the front-rear direction in a rectangular cylindrical transport case 16. A locking transport body (not shown) is bridged at appropriate intervals along the circumferential direction over the left and right endless pivot chains, and the endless transport chain is rotationally driven to cut away by the locking transport body. The crop transferred from the header 11 is configured to be transported rearward and upward.

  The threshing device 4 is located at a low position in the center in the left-right direction of the machine, and the grain tank 5 is located on the front side of the machine above the threshing device 4 and the engine 21 is located on the rear side of the machine. The tank 5 and the engine 21 are provided in a line in the front-rear direction.

[Aircraft support structure]
The airframe support structure will be described.
As shown in FIGS. 4 and 5, a pair of left and right main frames 22 extending in the longitudinal direction of the vehicle body, a front connecting portion 23 connecting the front of the left and right main frames 22, and a rear connecting the rear of the left and right main frames 22 An airframe frame 25 supporting the entire airframe is configured by the side connecting portion 24.

  The left and right main frames 22 are formed of a channel material having a substantially C-shaped cross section, and are long in the front-rear direction from the front to the rear of the vehicle, as shown in FIGS. The left and right traveling units 7, that is, the left and right front wheels 8 and the axles 8 a and 9 a of the left and right rear wheels 9 are provided at positions lower than the left and right main frames 22. As shown in FIGS. 4 and 5, the left and right front wheels 8 and the left and right rear wheels 9 are provided on the left and right sides of the left and right main frames 22 respectively in the left and right direction of the machine body. Are supported by the front wheels 8 and the left and right rear wheels 9.

The front connecting portion 23 will be described.
As shown in FIGS. 4 and 5, in the front side connecting portion 23, an upper horizontal portion connecting the left and right base portions 26 corresponding to the front projecting portions projecting forward from the left and right main frames 22 and the left and right base portions 26. A frame 27 and a lower horizontal frame 28 connecting the left and right side portions below the left and right base portions 26 are provided. The base portion 26 is integrally connected to the front end portions of the left and right main frames 22 so as to project forward. The upper horizontal frame 27 is in the form of a rectangular tube and extends over the left and right base portions 26, and the left and right sides are integrally connected to the base portion 26.

  As also shown in FIGS. 7 and 9, an axle case 29 rotatably supporting an axle of the front wheel 8 is bolted to the lower surface side of the left and right base portions 26 projecting forward from the left and right main frames 22. There is. Therefore, the front side of the main frame 22 is supported by the front wheel 8.

The left and right axle cases 29 are connected by the lower horizontal frame 28.
The lower horizontal frame 28 includes left and right front-to-back connection members 30 extending in the front-rear direction, a rear side connection member 31 connecting the rear parts of the left and right front-to-back connection members 30, and front portions of the left and right front-to-back connection members 30. And a front side connector 32 connecting the two. A front side connection member 32 is bolted to the left and right axle cases 29.

  A transmission case 34 for incorporating a travel drive device for travel drive is provided so as to be inserted between the upper horizontal frame 27 and the lower horizontal frame 28. The left and right sides of the transmission case are provided with an axle case 29 for the left and right front wheels 8 and left and right relay transmission cases 35 for connecting the transmission case 34 and the left and right axle cases 29. It is done.

  The rear lower portions of the left and right axle cases 29 are connected by a horizontal pipe frame 36 made of a round pipe material. In the sideways pipe frame 36, an internal space is used as a reservoir of hydraulic oil. Further, a front end portion of the transmission case 34 is connected to an intermediate portion in the left-right direction of the horizontal pipe frame 36 via a connecting member 37.

The rear connection portion 24 will be described.
As shown in FIG. 5, the rear side connection portion 24 is provided with a rear connection body 38 made of a round pipe material located below the left and right main frames 22 and extending over the left and right main frames 22. A rear wheel support 39 as a traveling device support provided over the rear wheels is swingably supported by the rear connection body 38 around the longitudinal axis P2. That is, the rear wheel support 39 constitutes a rear traveling unit connecting body that connects the left and right traveling units 7 (rear wheels 9).

  That is, the support frame 40 which protrudes downward is provided at the vehicle body rear side location in the main frame 22 on either side, and the rear connection body 38 is bridged and connected over the support frame 40 of the both right and left. The rolling support portion 41 is provided in a fixed state at the left and right middle portions of the rear connecting body 38, and the middle portion in the vehicle body width direction of the rear wheel support 39 in the vehicle body direction is swingable around the shaft center P2 in the vehicle front and rear direction. It is supported by the rolling support portion 41.

  The left and right rear wheels 9 are pivotally supported around the longitudinal axis center at the left and right side end portions of the rear wheel support 39, and a steering cylinder 42 is provided on the rear side of the rear wheel support 39 along the left and right direction. It is done. The rear wheel 9 can be pivoted about the longitudinal axis center by the operation of the steering cylinder 42.

Threshing device
Next, the threshing device 4 will be described.
As shown in FIGS. 6, 7, 8, 9, the threshing apparatus 4 includes a threshing unit 43 that performs a threshing process, and a sorting unit 44 that performs a sorting process on the processed material after the threshing process has been performed by the threshing unit 43. Is equipped. The threshing portion 43 is provided with a substantially box-like threshing frame 45 in a state of surrounding the outer peripheral portion, and the threshing barrel 46 that rotates around the rotation axis along the longitudinal direction of the machine is provided inside the threshing frame 45 At 46, the shredded grain of the reaping grain is processed.

  The sorting unit 44 is provided with a sorting unit frame 47 formed of a peripheral wall portion in a rectangular state, and grains and branches are swayed and transferred within the sorting unit frame 47 after the grain shedding processing has been performed. A sorting processing unit 48 (see FIG. 8) is provided for sorting a second product such as a grain with a grain and waste scraps and the like.

  As described above, the threshing part 43 and the sorting part 44 are respectively constituted by the threshing frame 45 and the sorting part frame 47 as a frame structure having a large supporting strength at the outer peripheral part covering the periphery. On the rear side of the threshing device 4, a shredding device 49 is provided which shreds the threshing treatment material (waste straw scraps and the like) after the threshing treatment by the threshing device 4.

  As shown in FIG. 19, the sorting processing unit 48 provided in the sorting unit 44 is a screw conveyor type that conveys grains that are leaked and sorted while swinging and transferring by the swinging sorting apparatus 50 to one side. It comprises a thing recovery device 51, a screw conveyor type second thing recovery device 52 for conveying the second thing to one side, and a blower 53 for supplying a sort of air to the processing object.

  As shown in FIG. 16, on the outer side to the right of the sorting unit 44, a grain serving as a first object conveying mechanism for conveying the grain conveyed by the first object recovery device 51 toward the upper grain tank 5. A grain lifting conveyor 54 and a second reduction device 55 for reducing the second conveyed by the second collection device 52 to the threshing part 43 are provided.

And the threshing frame 45 which comprises the threshing part 43 is mounted and supported by the main frame 22 on either side.
As shown in FIGS. 6, 9 and 14, the threshing frame 45 extends substantially in the front-rear direction on both the left and right sides of the threshing part 43, and is substantially plate-shaped as a left-right vertical support extending along the vertical direction. Side wall portion 56, a substantially plate-like rear wall portion 57 connecting rear end portions of left and right side wall portions 56, a substantially plate-like front wall portion 58 connecting front end portions of left and right side wall portions 56, A plurality of reinforcing supports and the like surrounding the peripheral portion of the wall portion are integrally connected. The front wall portion 58 and the rear wall portion 57 are formed with openings through which the threshing treatment passes.

  The reinforcing support is formed of a rectangular cylinder, an angle member, etc., and as a plurality of reinforcing supports, as shown in FIGS. 6 and 8, left and right lower portions extending in the front and rear direction along lower edges of the left and right side walls 56 The support 59, the left and right upper supports 60 extending in the longitudinal direction along the upper edges of the left and right side walls 56, and the left and right vertically oriented frame bodies 61 extending longitudinally along the left and right edges of the front wall 58 It is equipped.

  The threshing frame 45 is mounted on and supported by the left and right main frames 22. To add the explanation, in a state where the left and right lower supports 59 of the threshing frame 45 are mounted on the upper surfaces of the left and right main frames 22, the lower supports 59 and the main frame 22 are connected by bolts at a plurality of locations. It is fixed.

  As shown in FIG. 6, the left and right main frames 22 are provided in a horizontal state substantially parallel to the ground contact surface when the airframe is in contact with the ground, while the upper part of the threshing device 4 is , It is provided in a rear rising inclination state located on the upper side toward the rear side of the vehicle. That is, the left and right upper supports 60 are provided to be inclined upward and backward along the upper portion of the threshing device 4.

  The driving unit 3 is mounted and supported by a driving unit frame 62 connected and fixed to the threshing frame 45. The driver's frame 62 has its base end connected and fixed to the upper side of the left and right vertical frame 61, which is a reinforcing support at the front end of the threshing frame 45, and projects in a cantilever shape toward the front of the machine. It is provided in the state. Further, in the driver frame 62, rod-like left and right reinforcing members in which the middle part in the forward projecting direction is extended diagonally upward from the lower side location than the connection location of the base end in the left and right vertical frame 61 63 received and supported. The driving unit frame 62 is horizontally provided so as to be substantially parallel to the ground contact surface.

  The driving unit 3 is surrounded by the cabin 2, and the entire driving unit 3 including the cabin 2 is configured by an integrated box-like body. Such an operation unit 3 is mounted on and supported by the operation unit frame 62 via a vibration isolation rubber (not shown) and fixed by bolt connection.

  A top plate 65 covering the upper side of the threshing cylinder 46 is curved in a substantially semi-cylindrical shape along the outer peripheral surface of the threshing cylinder 46. A threshing upper connection body 66 is provided at the upper side of the top plate 65 to connect the upper portions of the left and right side wall portions 56. As shown in FIGS. 7 and 8, a plurality of threshing upper connection bodies 66 are provided in a plurality in a state where they are appropriately spaced in the longitudinal direction of the machine body. The threshing upper connection body 66 is formed in an arc shape so that the lower end edge follows the shape of the top plate 65, and the lower end edge is bolt-connected as appropriate in a state where the lower end edge is in contact with the top plate 65. Thus, the threshing upper connection body 66 is supported by the top plate.

The sorting unit frame 47 constituting the sorting unit 44 is suspended and supported by the left and right main frames 22.
As shown in FIG. 10, the sorting unit frame 47 has a side wall portion 67 covering the left and right sides of the sorting portion 44, and a front support portion 68 connecting the front sides of the left and right side wall portions 67. Is formed. Then, the upper end portions of the left and right side wall portions 67 are put on the lower surfaces of the left and right main frames 22, fixed by bolt connection, and suspended and supported.

  The front end of the sorting unit frame 47 and the front connecting portion 23 of the machine frame 25 are connected. Specifically, the rear horizontal connector 31 in the lower horizontal frame 28 of the front frame 23 of the airframe frame 25 and the front ends of the left and right side walls 67 of the sorting frame 47 are bolted together. It is done.

[Fuel tank]
Next, the support structure of the fuel tank 70 will be described.
As shown in FIGS. 2 and 7, the fuel tank 70 is provided between the front wheel 8 and the rear wheel on the left side, and in a state where the fuel tank 70 is located laterally outward of the sorting unit 44. A fuel tank support frame 71 for mounting and supporting the fuel tank 70 is provided. As shown in FIG. 10, the fuel tank support frame 71 connects the left and right sides of the lower portion of the sorting unit frame 47, and protrudes outward to the left of the main frame 22 on the left side of the airframe of the left and right main frames 22. It is prepared in the state to do.

  The fuel tank support frame 71 has two laterally facing members 72 extending in the left and right direction separated from each other in the front and rear direction, and two front and rear facings connecting right side end portions of the two laterally facing members 72 and left and right middle portions. A member 73 and a tank mounting portion 74 provided at the left end of the two transverse members 72 are provided. The transverse member 72 is formed of a square pipe material, and the front and rear member 73 is formed of an angle member.

  At the lower ends of the left and right side wall portions 67 in the sorting unit frame 47, a recessed portion 75 in which the laterally oriented member 72 is inserted is formed at a position corresponding to the front and rear laterally oriented members 72. The fuel tank support frame 71 is mounted from the lower side of the sorting unit frame 47 so that the front and rear laterally oriented members 72 enter the recessed portion 75, and the two front and rear facing members 73 are lower side with respect to the left and right side wall portions 67. It is bolted and fixed from. The tank mounting portion 74 protrudes outward to the left from the side wall portion 67 on the left side of the sorting portion frame 47, and the fuel tank 70 is mounted on and supported by the tank mounting portion 74.

[Grain tank]
Next, the grain tank 5 will be described.
As shown in FIGS. 1, 2, 15 and 16, the grain tank 5 is provided above the threshing device 4 and positioned on the front side of the machine body. The grain tank 5 is supported on the top of the threshing frame 45. That is, the grain tank 5 is mounted on and supported by the upper supports 60 on the left and right in the threshing frame 45 via the front tank support frame 76 on the front side of the fuselage, and the rear side of the tank is a rear tank support frame 77. , And is mounted and supported on the left and right upper supports 60.

  The grain tank 5 is provided with a grain discharging device H for discharging the stored grain to the outside of the aircraft. In the grain discharging device H, a transverse feeding / conveying unit 78 located in the lower inside of the grain tank 5 and laterally feeding the grain, and located outside the grain tank 5 and conveyed by the transverse feeding / conveying unit 78 And a discharge conveyor 79 for conveying the kernels to the discharge point.

  The bottom surface of the grain tank 5 is formed to be tapered downward as viewed in the left-right direction, and a screw-type crossfeed conveyance unit 78 is provided at the lower end portion of the downward tapered portion in the grain tank 5. The grain stored is configured to be guided downflow to the cross transport unit 78 at the time of discharge. As shown in FIG. 2, a screw conveyor type discharge conveyor 79 for discharging the grain conveyed by the crossfeed conveyance unit 78 toward the discharge point outside the machine body is provided outside the left side of the grain tank 5. It is equipped.

  The grain tank 5 is formed in a downward tapered shape in the longitudinal direction of the machine body, and the discharge conveyor 79 is in a state in which the base end 80 is supported by the downward tapered slope portion of the grain tank 5 It is equipped. The proximal end 80 is rotatably supported around an axis perpendicular to the inclined surface. The discharge conveyor 79 is configured to be switchable between a projecting state in which the distal end portion projects outward and a stored state in which it retracts toward the inside of the machine by rotating the base end with the hydraulic cylinder 81. . In the stored state, the discharge conveyor 79 is inclined upward from the rear side of the machine body as shown in FIG. 2 and, as shown in FIG. It is stored in a state of entering into the insertion portion 82. As shown in FIG. 14, the fuel tank 70 is also housed in the state of entering the lower tapered recess 82 of the grain tank 5 similarly to the discharge conveyor 79.

  As shown in FIG. 15, the grain tank 5 is supported by the front side tank support frame 76 on the front side in the lower-down inclined posture bottom side, and the rear side on the rear side in the upward-rising posture is the rear side tank support It is supported by a frame 77.

  As shown in FIG. 11, the front side tank support frame 76 extends over the left and right side walls 56 of the threshing frame 45 and rests on the left and right upper supports 60 located at the upper edge of the left and right side walls 56. It is supported and bolted.

  The rear side tank support frame 77, like the front side tank support frame 76, extends over the left and right side walls 56 of the threshing frame 45 and is located on the upper edge of the left and right side walls 56. It is mounted and supported by

  As shown in FIG. 11, the rear side tank support frame 77 includes left and right tank side support portions 83 located on the left and right sides, and a plurality of tank left and right tank side support portions 83 connected to each other. A connecting portion 84 is provided. The left and right tank side supports 83 are each formed in a substantially trapezoidal frame shape in a side view.

[Drive part]
Next, the driving unit 6 will be described.
As shown in FIGS. 2 and 3, the driving unit 6 is supported by the threshing frame 45 in a state of being located on the rear side of the grain tank 5. The drive unit cover 85 covers the substantially entire area of the outer peripheral portion of the drive unit 6. As shown in FIGS. 11, 14, 15 and 16, an engine 21 as a motive power source, an air cleaner 86 for cleaning combustion air supplied to the engine 21, and a suctioned inside are drawn to the inward side of the driving part cover 85. The apparatus includes a precleaner 87 which removes external air in advance and supplies it to an air cleaner 86, a radiator 88 for cooling the engine 21, an exhaust treatment device 89 for purifying exhaust gas from the engine 21, and the like. In the vicinity of the radiator 88, a cooling fan 90 for generating a cooling air is provided. The exhaust treatment device 89 includes a diesel particulate filter (DPF) to reduce particulate matter (PM) such as diesel particulates contained in the exhaust gas.

  An engine support frame 91 for supporting the engine 21 is provided, and the engine support frame 91 extends over the left and right side walls 56 of the threshing frame 45 and is located at the upper edge of the left and right side walls 56 It is placed on and supported by the support 60.

  As shown in FIG. 12, the engine support frame 91 connects the front portions of the left and right side vertical surface portions 92 and the left and right side vertical surface portions 92 extending in the front-rear direction to the upper side of the left and right upper supports 60. A front connection member 93 and a middle portion connection member 94 for connecting front and rear middle portions of the left and right side vertical surface portions 92 are provided. Further, as also shown in FIG. 13, in each of the front connecting member 93 and the middle connecting member 94, an engine mounting portion 97 for mounting and supporting the engine 21 is provided on both left and right sides. The engine 21 is mounted and supported by the four engine mounting portions 97 via a rubber mount. The rubber mount absorbs the vibration of the engine 21 so that the vibration is not transmitted to the operation unit 3.

  The left and right side vertical surface portions 92 are extended rearward from the engine support portion supporting the engine 21. A grid-like rear support portion 95 as an extension portion is provided at the rear extension side location to connect the rear end side locations of the left and right side vertical surface portions 92. On the rear support portion 95, a work table 96 on which a worker can get on for maintenance work of the drive unit 6, etc. is placed and supported.

  As shown in FIG. 16, the left and right side vertical surface portions 92 are formed so as to be wider in the vertical direction on the front side of the machine body, and gradually narrower on the rear side of the machine body. Lower end edges of the left and right side vertical surface portions 92 are bolted in a state of being mounted on the left and right upper supports 60. A protection fence 98 for protecting the worker is provided on the outer periphery of the work bench 96.

  As shown in FIG. 16, the left and right upper support members 60 are provided in an upward-inclined inclined state positioned upward toward the rear of the machine, but the side vertical surface portions 92 on the left and right are gradually narrowed toward the rear of the machine. Since the upper edge portions of the left and right side vertical surface portions 92 are in the horizontal state, the engine mounting portion 97 and the work bench 96 are each provided in the horizontal state.

  As shown in FIGS. 14 and 15, the exhaust treatment device 89 and the radiator 88 are separately disposed on the left and right sides with respect to the engine 21 in the longitudinal direction of the vehicle body, and the radiator 88 is from the right end of the threshing device 4 Also, it is provided in the state which protrudes outward on the right side. That is, the radiator 88, the engine 21, and the exhaust treatment device 89 are provided side by side along the axial center direction of the output shaft 21A of the engine 21.

  An output shaft 21A of the engine 21 extends outward from the left side of the engine 21 to the left. The left side of the engine 21 is provided with a flywheel 99 that rotates integrally with the output shaft 21A, and the outer periphery of the flywheel 99 is provided with a flywheel housing 100 that covers the flywheel 99. The flywheel housing 100 is provided integrally with the casing of the engine 21.

  As shown in FIG. 15, the output shaft 21A of the engine 21 is extended outward to the left with respect to the flywheel 99, and an output rotator for transmitting power to the free end side portion of the output shaft 21A with respect to the flywheel 99. An output pulley 101 as shown in FIG. A bearing member 102 for supporting the free end side portion of the output shaft 21A with respect to the flywheel 99 is provided in a state of being connected to the flywheel housing 100.

  The bearing member 102 is flanged and bolted to the flywheel housing 100. Inside the bearing member 102, a bearing for rotatably supporting the output shaft 21A is provided.

  As shown in FIGS. 14 and 15, a placement support portion 103 for placing and supporting the exhaust treatment device 89 is provided on the upper portion of the bearing member. The placement support portion 103 is connected to the lower portion of the exhaust treatment device 89 via the connection bracket 104 and is supported on the upper portion of the bearing member 102, and is fixedly coupled to the bearing member 102 by fastening the bolt. There is.

  As shown in FIG. 15, the exhaust treatment device 89 is provided between the flywheel housing 100 and the output pulley 101 in the axial direction of the output shaft 21A. The placement support portion 103 and the exhaust treatment device 89 project from the outer end of the bearing member 102 in the extending direction of the output shaft 21A, and the output pulley 101 is placed in the axial center direction of the output shaft 21A. It is provided in a state of entering below the placement support portion 103 and the exhaust treatment device 89.

  The exhaust treatment device 89 is provided in substantially the same height as the cylinder head 105 located in the upper part of the engine 21 and in a state of being aligned with the cylinder head 105 in the left-right direction. The exhaust treatment device 89 has a substantially cylindrical outer shape, and the axis of the cylinder is disposed in a posture along the longitudinal direction of the machine. Exhaust gas from the engine 21 is supplied to the front portion of the exhaust treatment device 89 through the exhaust pipe 106, and discharged toward the rear of the airframe by a discharge pipe 107 extended from the rear portion of the exhaust treatment device 89. Are configured to

  The radiator 88 is supported by the threshing device 4. The radiator 88 is supported by a bracket 108 fixed to the right side wall 56 of the threshing frame 45. The cooling fan 90 rotates around a leftward and rightward axis to generate a cooling air so that the outside air is taken in from the outer side of the right side of the machine and drawn toward the left side. Although not shown, the cooling fan 90 is driven by a hydraulic motor.

  As shown in FIG. 17, the driving part cover 85 includes a front side cover part 85 a covering the upper side of the engine 21, a rear side cover part 85 b covering the upper side of the rear side part of the engine 21, and an upper side of the exhaust treatment device 89. A left side cover 85c covering the left side and a radiator cover 85d covering the outer side of the radiator 88 are provided. Although not shown, a support frame for supporting the respective covers is provided inside the drive unit cover 85.

  An air cleaner cover 85b1 covering the upper side of the air cleaner 86 in a state in which the precleaner 87 is positioned outward is provided at the center in the left-right direction of the rear side cover 85b. The precleaner 87 is provided outside the air cleaner cover 85b1. Of the rear side cover portion 85b, the rear left side cover portion 85b2 positioned on the left side of the air cleaner cover portion 85b1 and the rear right side cover member 85b3 positioned on the right side are configured to be openable. The rear left cover portion 85b2 and the rear right cover member 85b3 correspond to the cover portion K on the air cleaner side.

  The rear left cover portion 85b2 and the rear right cover member 85b3 are substantially L-shaped in a side view having an upper surface portion and a rear surface portion, and the lower end portion of the rear surface portion is locked to the support frame. The end is fixed to the support frame by a butterfly bolt 111. Therefore, by removing the wing bolt 111, it can be easily removed without a tool.

  As shown in FIG. 11, the radiator cover 85d is supported so as to be able to swing open around a longitudinal axis center by a pivot 112 provided at the front right end. As shown in FIG. 15, the swinging end of the radiator cover 85d is held in the closed state by the releasable lock 113.

  Each of the radiator cover portion 85d which is a side portion on the radiator 88 side of the driving portion cover 85 and the left side cover portion 85c which is a side portion on the exhaust treatment device 89 side is provided with a ventilating portion TU which can ventilate There is. That is, as shown in FIG. 17, a dustproof net 114 as a ventilation part is provided on the right side facing the radiator 88 in the radiator cover part 85d, taking in the outside air while blocking the passage of dust by the operation of the cooling fan 90. It is configured to be able to. The left cover portion 85c is formed with a porous portion 115 in which a large number of passage holes for discharging the cooling air generated by the cooling fan 90 after passing through the inside of the driving portion cover 85 are formed. .

  An air cleaner 86 is provided on the rear side of the machine as a lateral side perpendicular to the axial direction of the output shaft 21A with respect to the engine 21. As shown in FIG. 16, the rear support portion 95 of the engine support frame 91 is extended rearward so as to pass through the lower side of the air cleaner 86, and the air support 86 is supported by the rear support portion 95. An air cleaner support frame 116 is erected. The air cleaner 86 is connected to and supported by the upper end of the air cleaner support frame 116.

  The precleaner 87 is provided on the upper side of the air cleaner 86 and on the outer side of the drive unit cover 85. The precleaner 87 and the air cleaner 86 are connected through the air supply pipe 117. The air supply pipe 117 can be connected and disconnected midway. After mounting the drive unit cover 85, the air supply pipe 117 on the precleaner 87 side is inserted and mounted from above. Therefore, the precleaner 87 is configured to be held in position by inserting it into the insertion hole of the drive unit cover 85.

  As described above, since the work bench 96 is provided in the state where the air cleaner 86 and the precleaner 87 are located on the rear side of the machine, the maintenance work can be easily performed. At the rear of the work platform 96, a ladder 118 is provided for the operator to get on and off the work platform 96 from the outside of the machine body.

[Another embodiment]
(1) In the above embodiment, the exhaust treatment device 89 is provided in the state of being located between the flywheel housing 100 and the output pulley 101 in the axial center direction of the output shaft 21A, but instead of this configuration Alternatively, it may be provided above the output pulley 101, or above the output pulley 101 in the extension direction outward direction of the output shaft 21A.

(2) In the above embodiment, the output pulley 101 is provided in a state in which the output pulley 101 enters below the placement support portion 103 and the exhaust treatment device 89. However, instead of this configuration, the output pulley 101 is a placement support portion It may be provided at a position not overlapping with the exhaust gas treatment device 89 and the exhaust gas treatment device 89 in plan view.

(3) In the above embodiment, the exhaust treatment device 89 is provided side by side with the cylinder head 105 of the engine 21. However, instead of this configuration, the exhaust treatment device 89 is arranged sideways with the crank housing of the engine 21. May be provided.

(4) In the above embodiment, the air cleaner 86 is supported by the engine support frame 91 supporting the engine 21. Instead of this configuration, a dedicated frame for supporting the air cleaner 86 is mainly used. It may be provided in a state of extending from the frame.

(5) In the above embodiment, the grain tank 5 is located on the front side of the machine above the threshing device 4, and the engine 21 is located on the rear side of the machine, so that they are arranged in the front-rear direction. Instead of this configuration, the engine 21 may be provided side by side with the threshing device 4, or the grain tank 5 and the engine 21 may be provided side by side.

(6) Although the said embodiment showed the harvester provided with a wheel-type driving | running | working apparatus, you may apply to the harvester provided with a crawler travel apparatus. Also, instead of the ordinary type combine, it may be a self-eliminating type combine, and not limited to the combine, for example, a type of harvester in which an engine is provided below the feeder that transports harvested material such as corn harvester. May be.

  The present invention can be applied to a harvester such as a combine and a corn harvester that drives each part with the power of an engine to harvest crops.

DESCRIPTION OF SYMBOLS 4 threshing apparatus 5 grain tank 21 engine 21A output shaft 85 driving part cover 86 air cleaner 87 precleaner 88 radiator 89 exhaust treatment apparatus 91 engine support frame 95 extending part 99 flywheel 100 flywheel housing 101 output rotating body 102 bearing member 103 Mounting support portion 105 Cylinder head 116 Air cleaner support frame K Cover portion TU Ventilation portion

Claims (10)

An engine as a power source and a radiator for engine cooling are provided side by side,
A harvester comprising an exhaust treatment device for purifying exhaust gas of the engine on a side opposite to a side where the radiator is positioned with respect to the engine, in a state of being side by side with the engine. A cylinder head is provided at the top of the engine,
The harvester according to claim 1, wherein the exhaust treatment device is provided side by side with the cylinder head. The output shaft of the engine extends outward from the flywheel,
An output rotating body for power transmission is provided at a position on the free end side of the output shaft with respect to the flywheel,
The said exhaust gas treatment device is provided in the state located between the flywheel housing which covers the circumference | surroundings of the said flywheel in the axial direction of the said output shaft, and the said output rotary body. Harvester. A bearing member for supporting a free end side portion of the output shaft relative to the flywheel is provided in a state of being connected to the flywheel housing,
The harvester according to claim 3, wherein a placement support portion for placing and supporting the exhaust treatment device is provided at an upper portion of the bearing member.   The harvester according to claim 4, wherein the output rotating body is provided in a state of entering below the placing support portion and the exhaust treatment device. A cylinder head is provided at the top of the engine,
The radiator, the engine, and the exhaust treatment device are provided side by side along an axial center direction of an output shaft of the engine.
An air cleaner for supplying combustion air to the engine is provided in a state where the air cleaner is positioned on the lateral side orthogonal to the axial direction with respect to the engine.
A position above the air cleaner is provided with a precleaner for removing dust in the air in advance before being supplied to the air cleaner.
The harvester according to any one of claims 1 to 5, wherein the precleaner is provided side by side with the cylinder head in the orthogonal direction. An engine support frame supporting the engine is provided.
The engine support frame is provided with an extending portion which extends to a position below the air cleaner,
7. The harvester according to claim 6, wherein an air cleaner support frame for supporting the air cleaner is provided upright on the extended portion. The engine, the radiator, the exhaust treatment device, and a driving part cover that covers the upper side of the air cleaner are provided.
The harvester according to claim 6 or 7, wherein the cover portion on the air cleaner side of the drive unit cover is configured to be openable. Between the radiator and the engine, a cooling fan for generating a wind for cooling the radiator is provided.
9. The harvester according to claim 8, wherein a ventilating part capable of ventilating is provided on each of the side portion on the radiator side and the side portion on the exhaust treatment device side of the drive unit cover. A threshing device for threshing a reaping grain stalk, and a grain tank for reserving grain after being grained by the threshing device;
The grain tank and the engine are arranged in the front-rear direction with the grain tank located on the front side of the machine above the threshing device and the engine located on the rear side of the machine,
The harvester according to any one of claims 1 to 9, wherein the exhaust treatment device is provided on one side of the engine in the left-right direction.

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