JP2013070661A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester having an exhaust device which is excessively not heated and is excellent in durability, and a grain tank capable of storing a large quantity of grains.SOLUTION: In the combine harvester, a DPF unit (40) for purifying the exhaust gas of an engine (9) is disposed in a space (S) formed between a thresher (5) and a grain tank (6), a cover (42) is provided for covering at least the upper and lateral sides of the DPF unit (40), and an opening (A) is formed in the lower part of the cover (42).

Description

  The present invention relates to a combine equipped with a diesel particulate filter.

  Conventionally, the structure which arrange | positions the exhaust apparatus which purifies the unburned fuel and granulated substance contained in exhaust gas in the space formed between a threshing apparatus and a glen tank is proposed (refer patent documents 1 and 2).

JP 2011-135846 A JP 2011-24510 A

The combine described in Patent Documents 1 and 2 has an exhaust device for purifying unburned fuel and granulated material inside the airtight cover, so that the exhaust device is heated excessively and in the vicinity of the exhaust device There was a risk that the detector installed in would malfunction.
In the combine described in Patent Documents 1 and 2, the exhaust manifold of the engine is connected to the exhaust device for purifying unburned fuel and granulated material with a steel pipe, so the exhaust device is damaged early due to engine vibration. There was a fear.

  Therefore, the main problem of the present invention is to eliminate such problems.

The present invention that has solved the above problems is as follows.
That is, the invention described in claim 1 includes a traveling device (3) on the lower side of the body (41), a threshing device (5) for threshing the cereal on one side of the body (41), and the other side. In a combine equipped with a Glen tank (6) for storing the threshed grain,
An engine (9) is arranged in an engine room (E) provided in front of the Glen tank (6), and the engine is placed in a space (S) formed between the threshing device (5) and the Glen tank (6). The DPF unit (40) for purifying the exhaust gas of (9) is disposed, and a cover body (42) that covers at least the upper side and the lateral side of the DPF unit (40) is provided, and an opening is formed at a lower portion of the cover body (42). It is a combine characterized by forming part (A).

  A second aspect of the present invention is the combine according to the first aspect, wherein the DPF unit (40) is disposed above a cylinder (57) for changing a relative posture between the airframe (41) and the traveling device (3). is there.

  According to a third aspect of the present invention, an inner cover (47A), which is a part of the cover (42) on the side of the grain tank (6), and the grain tank (6), the inner cover (47A) and a predetermined A configuration in which an outer cover (47B) is arranged at an interval so that cooling air from a cooling fan (28) for cooling the engine (9) can be introduced between the inner cover (47A) and the outer cover (47B). The combine according to claim 1 or 2.

  According to a fourth aspect of the present invention, an inclined wall (21D) inclined downward toward the outside of the airframe (41) is formed at a lower portion of the Glen tank (6), and the cover (42) is inclined to the inclined wall (21D). It is a combine of any one of Claims 1-3 arrange | positioned adjacent to the lower surface side of the upper part of.

The invention according to claim 5 is characterized in that a recess (22, 23) is formed in a portion of the inclined wall (21D) adjacent to the cover (42),
The combine according to claim 4, wherein the upper part of the cover (42) is arranged facing the recesses (22, 23).

  A sixth aspect of the present invention is the engine according to any one of the first to fifth aspects, wherein the exhaust manifold (30B) of the engine (9) and the DPF unit (40) are connected via a flexible connecting pipe (52). The combine according to Item 1.

  According to the seventh aspect of the present invention, an exhaust side connection pipe (54) having an inner diameter larger than the outer diameter of the exhaust port (40F) is connected to the exhaust port (40F) of the DPF unit (40). The combine according to any one of claims 1 to 6, wherein a predetermined gap is formed between the outer periphery of 40F) and the inner periphery of the exhaust side connecting pipe (54).

  According to the first aspect of the present invention, the cover (42) that covers at least the upper side and the lateral side of the DPF unit (40) is provided, and the opening (A) is formed in the lower part of the cover (42). Therefore, an excessive temperature rise of the DPF unit (40) can be prevented, and malfunction of the detectors and the like disposed in the peripheral portion of the DPF unit (40) can be prevented. Further, dust such as soot mixed in the cover (42) falls downward from the opening (A), so that it is possible to prevent the soot from accumulating inside the cover (42).

  According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the DPF unit (40) is a cylinder (57) for changing the relative posture between the airframe (41) and the traveling device (3). The cylinder (57) can prevent the mud and waste from entering the cover (42) from the lower side by the cylinder (57), and can prevent mud and waste from entering the DPF unit (40). Adhesion can be reduced.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the cooling air from the cooling fan (28) can be introduced between the inner cover (47A) and the outer cover (47B). Therefore, the DPF unit (40) can be cooled by the cooling air sucked by the cooling fan (28).

  According to invention of Claim 4, in addition to the effect by the invention of any one of Claims 1-3, cover (42) which covers a DPF unit (40) is made into the lower part of a Glen tank (6). Since it is arranged close to the lower surface side of the upper part of the inclined wall (21D) formed in the above, it is possible to suppress the decrease in the volume of the Glen tank (6) due to the provision of the DPF unit (40), and the work of the combine Efficiency can be increased.

  According to the invention described in claim 5, in addition to the effect of the invention described in claim 4, the upper part of the cover (42) covering the DPF unit (40) is formed on the inclined wall (21D) of the glen tank (6). The cover (42) and the DPF unit (40) can be arranged close to the glen tank (6) side on the airframe (41). The maintenance work of the DPF unit (40) performed by moving the Glen tank (6) outward can be facilitated.

  According to the invention described in claim 6, in addition to the effect of the invention described in any one of claims 1 to 5, the exhaust manifold (30B) and the DPF unit (40) of the engine (9) are flexible. Therefore, the exhaust manifold (30B) of the engine (9) and the DPF unit (40) can be easily connected, and the vibration of the engine (9) and the DPF unit can be connected. The vibration difference of (40) can be absorbed by the bending of the connecting pipe (52), and the durability of the exhaust pipe line from the exhaust manifold (30B) to the DPF unit (40) and the DPF unit (40) can be improved. it can.

  According to invention of Claim 7, in addition to the effect by the invention of any one of Claims 1-6, it has an internal diameter larger than the outer diameter of the exhaust port (40F) of a DPF unit (40). Since the exhaust-side connecting pipe (54) is connected, the exhaust-side connecting pipe (54) can be efficiently cooled by the ejector effect, and ignition of cereals and the like on the field can be prevented.

It is a right view of a combine. It is a left view of a combine. It is a top view of a combine. It is a principal part right view of this embodiment. It is a principal part right side enlarged view of this embodiment. It is a principal part right view of this embodiment. It is a principal part top view of this embodiment. It is a principal part rear view of this embodiment. It is a principal part back surface enlarged view of this embodiment. It is explanatory drawing of an operation panel. It is the schematic of an operation panel. It is a display example of the monitor of the operation panel. It is transmission explanatory drawing.

  Hereinafter, this embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, in order to make an understanding easy, although it showed and demonstrated the direction for convenience, the structure is not limited by these.

As shown in FIGS. 1 to 3, the combine 1 includes a traveling device 3 composed of a pair of left and right crawlers traveling in the field, a reaping device 4 that harvests cereals from the field at the front end position of the machine body, and a grain behind the harvesting device 4. A threshing device 5 that performs threshing / sorting of straw and a Glen tank 6 that is juxtaposed on the right side of the threshing device 5 and stores the threshed / sorted grain are provided on the back side of the reaping device 5 on the front side of the Glen tank 6. A control unit 7 on which an operator boardes is provided at the facing part.
In addition, a rear side of the Glen tank 6 is provided with a discharge auger 8 for discharging stored grains to the outside of the machine, and a diesel engine (engine) 9 is mounted in the engine room E on the lower rear side of the control unit 7. Yes.

(Threshing device)
The cereals harvested by the reaping device 4 are lifted and conveyed to the threshing device 5 and threshed and selected by the threshing device 5. The threshing apparatus 5 includes a handling chamber for threshing cereals at the upper part and a sorting room for selecting cereals at the lower part. As shown in FIGS. 4 and 8, a handling cylinder 10 having a plurality of teeth is supported on a handling cylinder shaft 10 </ b> A extending in the front-rear direction in the handling chamber. The first tang 11 that blows air to the transfer shelf of the section, the first receptacle 12 that collects the grains leaking from the swing sorting device, and the second that blows air to the sheave at the rear of the swing sorting device A karasu 19 and a second receiving bowl 13 for collecting the grain (second thing) to which the branch raft leaked from the rocking sorter is attached are installed in order from the front side.

  The grain recovered by the first receiving tray 12 is pumped to the glen tank 6 by the first cerealing device 14 installed on the right side of the threshing device 5. The first cerealing device 14 is composed of a first cerealing cylinder 14A made of a cylindrical steel material and a first cerealing helix 14B that lifts the grain, and the base of the first cerealing cylinder 14A is a threshing device 5. The upper part of the first cereal cylinder 14 </ b> A communicates with the inlet of the glen tank 6. Moreover, 14 A of 1st cereal cylinders are installed in the space S pinched | interposed by the threshing apparatus 5 and the grain tank 6 so that it may go up from the base toward the upper part, and may incline.

  The cereal grains to which branch branches and the like collected by the second receiving tray 13 are attached are transferred to the second processing chamber 16 by the second cerealing device 15 installed on the right side of the threshing device 5. The second cerealing device 15 is composed of a second cerealing cylinder 15A made of cylindrical steel and a second cerealing helix 15B that lifts the second thing, and is located behind the base of the first cerealing cylinder 14A. The base of the second milling cylinder 15 </ b> A communicates with a discharge port formed at the lower right side of the threshing device 5, and the upper part of the second milling cylinder 15 </ b> A communicates with the inlet of the second processing chamber 16. . Further, the second milling cylinder 15 </ b> A is installed so as to incline forward from the base toward the upper part in the space S sandwiched between the threshing device 5 and the Glen tank 6.

  A second processing cylinder 16A having intermittent spiral blades on the outer peripheral surface is pivoted inside the second processing chamber 16 for processing and reducing the second product. The second product supplied to the second processing chamber 16 is transported forward by the rotating second processing cylinder 16A, and the grain and branch are separated, and dropped from the second processing product reducing port to the swing sorting device. Then, it is re-sorted by joining with the object to be processed from the handling room.

(Glentank)
The grain lifted by the first cerealing device 14 is stored in the glen tank 6. As shown in FIGS. 4, 8, etc., the Glen tank 6 is composed of a tank part 20 in which an inlet is formed and a funnel part 21 in which a discharge spiral for transferring grains to the discharge auger 8 is provided. Yes.

  In order to facilitate the inspection / maintenance work in the Glen tank 6, the tank portion 20 has a joining structure in which the right side wall 20A and the left side wall 20B are joined by a fastening member such as a bolt. The right wall 20A integrally forms a front wall, a rear wall, a right wall, and a ceiling wall by pressing, and is inserted through the left side wall 20B inside the periphery of the right side wall 20A. A fastening portion such as a nut for fixing a bolt or the like is provided. A mounting hole for inserting a bolt is formed in the peripheral portion of the left side wall 20B.

  The funnel portion 21 includes a front wall 21A, a rear wall 21B, a right wall 21C, and a left wall (inclined wall) 21D, and is formed in a substantially triangular prism shape with the upper side open. A discharge spiral for conveying the grains stored in the glen tank 6 to the discharge auger 8 is disposed at a lower portion of the funnel portion 21 so as to be shifted to the right side of the funnel portion 21. The inclined wall 21D is provided with a repose angle that is inclined from the left side to the right side from the upper end portion to the lower end portion of the inclined wall 21D in order to efficiently discharge the grains stored in the Glen tank 6.

  In order to arrange the right side portion of the frame 42 for protecting the diesel particulate filter (DPF unit) 40 described later on the inclined wall 21D of the funnel portion 21, from the front end portion of the frame 42 in the inclined wall 21D of the funnel portion 21. The 1st recessed part 22 and the 2nd recessed part 23 can be formed in the site | part corresponding to a rear-end part. In this case, in order to efficiently discharge the grains stored in the Glen tank 6, the first bottom surface portion 22A and the second bottom surface portion 23A are left on the left side from the upper end portion toward the lower end portion, similarly to the inclined wall 21D. It is preferable to provide a repose angle inclined to the right side from the first recess 22 and the second recess 23 between the front end of the funnel portion 21 and a position below the inlet of the Glen tank 6. Is more preferred.

(engine)
As shown in FIG. 6, the engine 9 disposed below the control unit 7 is provided on an engine-side support member 9 </ b> A provided on the lower part of the engine 9 and an airframe 41 in order to suppress vibration of the engine 9. The airframe side support member 41A is attached via a vibration isolation mount 9B. On the other hand, a frame 42 that houses a DPF unit 40 to be described later is directly attached to the upper portion of the machine body 41.
On the upper surface of the engine 9, as shown in FIGS. 7, 8, etc., a supercharger 30 having an intake turbine 30 </ b> A that supercharges air to the engine 9 and an exhaust manifold 30 </ b> B that exhausts exhaust gas from the engine 9, Exhaust gas recirculation devices (EGR) 31 for mixing a part of the exhaust gas into the engine 9 are arranged in order from the rear side.

(DPF unit)
In order to remove impurities contained in the exhaust gas discharged from the engine 9, a DPF unit 40 is connected to the connecting pipe 50 from the exhaust manifold 30B of the engine 9 as shown in FIGS. . Inside the DPF unit 40, an upstream side (intake port side) oxidation catalyst (DOC) 40A and a downstream side (exhaust port side) particulate filter (DPF) 40B are provided and contained in the exhaust gas. The unburned fuel is oxidized by the DOC 40A, and the granulated material contained in the exhaust gas is removed by the DPF 40B.

As shown in FIGS. 4 and 5, the DPF unit 40 is supported by a frame (cover) 42 made of a steel material provided in the machine body 41. The frame 42 includes a front frame 43, a rear frame 44, an upper connection frame 45, a lower connection frame 46, an inner cover 47A, an outer cover 47B, and a support member 48 that supports the DPF unit 40 from below. An opening A is formed in the lower part of the frame 42 in order to suppress an excessive rise in temperature inside the frame 42 that covers the front and rear, the side and the upper side of the DPF unit 40.
The machine body 41 includes a pitching cylinder 57 fixed to a rear connecting plate 56 whose base is rotatably supported by the machine 41 and whose tip is pivotally supported by the traveling device 3, and the base is rotatable to the machine 41. A pair of left and right rolling cylinders 59 that are supported by a front connection plate 58 that is pivotally supported by the traveling device 3 and that has a tip portion pivotally supported by the traveling device 3 are provided. The pitching cylinder 57 has a function of changing the inclination angle in the front-rear direction with respect to the body 41 of the traveling device 3, and the rolling cylinder 59 has a function of changing the inclination angle in the left-right direction with respect to the body 41 of the traveling device 3. .

As shown in FIGS. 4 to 9, the front frame 43 includes a front left column 43 </ b> A whose base is fixed to the fuselage 41 and extends upward, and a base that is fixed to the fuselage 41 and extends upward. The top portion is formed by a front right column 43B that extends upward on the left side and subsequently extends toward the left side and is fixed to the top portion of the front left column 43A.
Similarly, the rear frame 44 includes a rear left column 44A whose base portion is fixed to the body 41 and extends upward, and a base portion which is fixed to the body 41 and extends upward. The rear right column 44B is formed by extending and subsequently extending toward the left side, and the top is fixed to the top of the rear left column 44A.

Both ends of the upper connection frame 45 are fixed to the top of the front left column 43A and the top of the rear left column 44A, respectively, and both ends of the lower connection frame 46 are above the base of the front right column 43B and the rear side. Each is fixed above the base of the right column 44B.
The inner cover 47A is detachably provided on the front right column 43A and the rear right column 44A by a fastening member such as a bolt. The upper portion of the inner cover 47A includes a first connection pipe 51 made of a steel pipe and a stainless pipe. An upper cover 47C is attached to protect the flexible connecting pipe 52 and the second connecting pipe 53 made of a steel pipe. The opening A is formed in the lower part of the inner cover 47A, and an excessive temperature rise in the inner cover 47A is suppressed.
The outer cover 47B is detachably provided on the inner cover 47 with a fastening member such as a bolt at a right interval on the right side of the inner cover 47A. The upper end of the outer cover 47B reaches the upper cover 47C, and the upper cover 47C. It is attached to the right side of the door at a certain interval.
Further, the front end portion of the outer cover 47B extends toward the right side so that air sucked by a cooling fan 28 described later flows through the space S2 formed by the inner cover 47A and the outer cover 47B. It is provided close to the rear surface.

The support member 48 includes a left support member 48A and a right support member 48B. Upper portions of the left support member 48A and the right support member 48B are fixed to the upper connecting frame 45, and the left support member 48A and the right support member 48B. Is fixed to the lower connecting frame 46.
The left support member 48A extends downward, and then, in order to support the outer peripheral surface of the DPF unit 40 securely, is opposed to the outer peripheral shape of the DPF unit 40 and is formed in a circular arc shape downward, approximately 180 degrees opposite It extends in the clockwise direction and continues to the right.
The right support member 48B extends downward, and then is formed in a circular arc shape facing the outer peripheral shape of the DPF unit 40 so as to securely support the outer peripheral surface of the DPF unit 40. It extends in the direction and continues to the right.

The exhaust port 30E of the exhaust manifold 30B of the engine 9 and the intake port 40E of the DPF unit 40 are made of a first connecting pipe 51 made of a steel pipe and made of a stainless steel pipe in order to reduce propagation of vibration of the engine 9 and have flexibility. The connecting pipe 52 is connected to the second connecting pipe 53 made of a steel pipe.
4 and 5, the first connection pipe 51 extends from the exhaust port of the exhaust manifold 30B toward the rear side when viewed from the side, and the exhaust gas of the exhaust manifold 30B when viewed from above as shown in FIG. It extends toward the left side from the mouth, then curves approximately 90 degrees toward the rear side, and then extends toward the rear side and is connected to the intake port of the connection pipe 52.
As shown in FIGS. 4 and 5, the connecting pipe 52 extends from the inlet of the connecting pipe 52 toward the rear side in a side view, and from the inlet of the connecting pipe 52 in a plan view as shown in FIG. 7. It extends toward the rear side and is connected to the intake port of the second connection pipe 53.
As shown in FIGS. 4 and 5, the second connection pipe 53 extends rearward from the exhaust port of the connection pipe 52 in a side view, and then bends approximately 90 degrees toward the lower side. It extends toward the side and is connected to the air inlet 40E of the DPF unit 40.

Connected to the exhaust port 40 </ b> E of the DPF unit 40 is an exhaust side connection pipe 54 made of a steel pipe that discharges the exhaust gas from which unburned fuel and granulated substances in the exhaust gas are removed by the DPF unit 40.
In order to prevent the temperature of the exhaust side connection pipe 54 from rising due to exhaust of high temperature exhaust gas, the inner diameter of the exhaust side connection pipe 54 is formed larger than the outer diameter of the exhaust port 40E of the DPF unit 40. Accordingly, the exhaust gas flowing into the exhaust side connection pipe 54 from the exhaust port 40E of the DPF unit 40 draws outside air from the gap between the end of the DPF unit 40 side of the exhaust side connection pipe 54 and the exhaust port 40E. The exhaust temperature in the side connection pipe 54 is lowered. Further, as shown in FIGS. 4 and 5, the exhaust side connecting pipe 54 extends downward from the exhaust port 40F of the DPF unit 40 in a side view, and then curves approximately 90 degrees toward the rear side. Subsequently, the space between the airframes 41 is extended toward the rear side.

(Disposition position of DPF unit)
The DPF unit 40 supported by the frame 42 is disposed between the rear surface of the engine 9 and the first cereal cylinder 14A of the first cerealing device 14 in the front-rear direction, as shown in FIGS. In the vertical direction, the cooling fan 28 is disposed at a position lower than the center of the cooling fan 28 provided on the right side (outside) of the engine 9 and higher than the pitching cylinder 57. Further, the lower end portion of the DPF unit 40 is disposed at a position higher than the center of the fan of the first tang 11.

As shown in FIG. 7 and the like, the DPF unit 40 is disposed between the rear surface of the engine 9 and the first cereal cylinder 14A of the first cerealing device 14 in the front-rear direction. In order to promote drying of the stored grains, the front end portion of the DPF unit 40 is disposed at substantially the same position as the front wall 21A of the funnel portion 21 of the Glen tank 6.
Further, the DPF unit 40 is disposed between the threshing device 3 and the grain tank 6 in the left-right direction, and more specifically, in order to promote the drying of the grains stored in the grain tank 6, The upper right portion faces the second recess 23 formed in the inclined wall 21 </ b> D of the funnel portion 21 of the Glen tank 6.

As shown in FIGS. 8 and 9, the DPF unit 40 is disposed between the threshing device 3 and the grain tank 6 in the left-right direction, and part or all of the DPF unit 40 enters the lower side of the inclined wall 21 </ b> D of the grain tank 6. It is out. More specifically, in order to promote drying of the grains stored in the Glen tank 6, the center of the DPF unit 40 is arranged to be shifted to the right side from the upper end of the inclined wall 21D of the funnel portion 21 of the Glen tank 6. Has been.
The DPF unit 40 is disposed above the right crawler 2A and the left crawler 2B in the left-right direction, and is disposed between the second processing cylinder 16A of the threshing device 3 and the pitching cylinder 57 in the up-down direction. More specifically, in order to prevent igniting the grain culm in the field, it is arranged adjacent to the upper end portion of the inclined wall 21D of the funnel portion 21 of the Glen tank 6, and the upper right portion of the DPF unit 40 is the Glen tank. 6 faces the second recess 23 formed in the inclined wall 21D of the funnel portion 21.

(Operation monitor)
When unburned fuel exceeding the specified value and the granulated substance stay in the DPF unit 40, as shown in FIG. 10, the regeneration mode switch provided in the control unit 7 on which the operator is boarded is input, A command is output from the control-side controller 61 to the engine-side controller 60, and the engine 9 is rotated at a high speed.
When the engine 9 is in an idling state, by inputting the regeneration mode switch, the engine 9 becomes the rated rotation, and the internal temperature of the DPF unit 40 rises due to the high temperature exhaust gas exhausted from the engine 9. The unburned fuel and granulated material adhering to the DPF 40B can be burned and removed.
The control controller 61 and the engine controller 60 are communicably connected by a wireless run 62.

  As shown in FIGS. 11 and 12, an operation panel 63 is provided at the front of the control unit 7, and a monitor 64 is disposed at the center of the operation panel 63, so that the operator can operate the combine 1. Display status at any time. Further, a flashing lamp 65 is arranged on the right side of the monitor 64 to alert the operator.

  For example, when unburned fuel and granulated substances exceeding specified values stay in the DPF unit 40, the blinking lamp 65 blinks, and the monitor 64 is urged to input the regeneration mode switch to the operator. In order to notify the operator of the manual regeneration status after the operator inputs the regeneration mode switch, the manual regeneration of the DPF is necessary. Displaying that manual regeneration is in progress, manual regeneration will take about 10 minutes, etc., and that manual regeneration is complete after manual regeneration is completed, please restart the operation.

(Transmission diagram)
As shown in FIG. 13, pulleys 70 </ b> A and 70 </ b> B are pivotally supported on the output shaft 70 of the engine 9, and in order to reduce the number of installed gear cases of the transmission part and save space, the cutting HST 75 includes a cutting tool. A threshing transmission input shaft 76 is provided through the HST 75, pulleys 76 </ b> A and 76 </ b> B are pivotally supported on the input side of the threshing transmission input shaft 76, and a pulley 76 </ b> C is pivotally supported on the output side of the threshing transmission input shaft 76. .
The rotation of the engine 9 is transmitted to the threshing transmission input shaft 76 via a pulley 70A and a belt 80 wound around the pulley 76A, and the rotation transmitted to the threshing transmission input shaft 76 is transmitted via the pulley 76B. Is transmitted to the sorting section via the barrel 10A and the pulley 76C.

  A pulley 77 </ b> A is pivotally supported on the output shaft 77 of the cutting HST 75. The rotation transmitted to the output shaft 77 of the cutting HST 75 is transmitted to the cutting input shaft 78 via a pulley 77A and a belt 81 wound around the pulley 78A.

  Pulleys 91 </ b> A and 91 </ b> B are pivotally supported on the input shaft 91 of the traveling HST 90. The rotation of the engine 9 is transmitted to the input shaft 91 via the belt 82 wound around the pulley 70B and the pulley 91B.

In order to reduce the number of transmission gear cases and save space, the cooling fan HST93 is provided with an input shaft 94 that passes through the cooling fan HST93, and a pulley 94A is provided on the input side of the input shaft 94. A pulley 94 </ b> B is supported on the output side of the input shaft 94.
The rotation transmitted to the input shaft 91 of the traveling HST 90 is transmitted to the input shaft 94 via a pulley 91A and a belt 83 wound around the pulley 94A.

  A pulley 97 </ b> A is supported on the input shaft 97 of the compressor 96. The rotation transmitted to the input shaft 94 of the cooling fan HST 93 is transmitted to the input shaft 97 of the compressor 96 via the pulley 94B and the belt 84 wound around the pulley 97A.

DESCRIPTION OF SYMBOLS 3 Traveling apparatus 5 Threshing apparatus 6 Glen tank 9 Engine 20 Tank part 21 Funnel part 21A Front wall 21B Rear wall 21C Right wall 21D Inclined wall 22 1st recessed part 23 2nd recessed part 28 Cooling fan 30A Intake turbine 30B Exhaust manifold 40 DPF unit 40E Intake port 40F Exhaust port 41 Airframe 42 Frame (cover)
43 front frame 43A front left column 43B front right column 44 rear frame 44A rear left column 44B rear right column 45 upper connection frame 46 lower connection frame 47A inner cover 47B outer cover 47C upper cover 48 support member 51 first connection pipe 52 connecting pipe 53 second connecting pipe 54 exhaust side connecting pipe 57 pitching cylinder A opening E engine room S space S2 space

Claims (7)

A traveling device (3) is provided on the lower side of the machine body (41), a threshing device (5) for threshing cereals on one side of the machine body (41), and the threshed grain is stored on the other side. In a combine equipped with a Glentank (6),
The engine (9) is disposed in the engine room (E) provided in front of the Glen tank (6),
A DPF unit (40) for purifying exhaust gas of the engine (9) is disposed in a space (S) formed between the threshing device (5) and the Glen tank (6);
A cover (42) is provided to cover at least the upper and lateral sides of the DPF unit (40),
A combine characterized in that an opening (A) is formed in the lower part of the cover (42).   The combine of Claim 1 which has arrange | positioned the said DPF unit (40) above the cylinder (57) which changes the relative attitude | position of the said body (41) and a traveling apparatus (3). The outer cover (47B) is separated from the inner cover (47A), which is a part of the cover (42) on the side of the grain tank (6), and the grain tank (6) with a predetermined distance from the inner cover (47A). )
The combine according to claim 1 or 2, wherein cooling air from a cooling fan (28) for cooling the engine (9) can be introduced between the inner cover (47A) and the outer cover (47B). An inclined wall (21D) that is inclined downward toward the outside of the fuselage (41) is formed at the bottom of the Glen tank (6),
The combine of any one of Claims 1-3 which has arrange | positioned the said cover body (42) adjacent to the lower surface side of the upper part of an inclined wall (21D). Forming recesses (22, 23) in a portion of the inclined wall (21D) adjacent to the cover (42);
The combine according to claim 4, wherein the upper part of the cover (42) is arranged facing the recesses (22, 23).   The combine according to any one of claims 1 to 5, wherein the exhaust manifold (30B) of the engine (9) and the DPF unit (40) are connected via a connecting pipe (52) having flexibility.   An exhaust side connection pipe (54) having an inner diameter larger than the outer diameter of the exhaust port (40F) is connected to the exhaust port (40F) of the DPF unit (40), and the outer periphery of the exhaust port (40F) and the exhaust side connection are connected. The combine according to any one of claims 1 to 6, wherein a predetermined gap is formed between the inner periphery of the pipe (54).

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