JP2015109879A - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine in which the air of sufficient oxygen concentration can be taken in without sucking a high temperature waste gas from a suction inlet of a pre-cleaner, and thereby the degradation of heat balance is prevented.SOLUTION: A combine is provided with a threshing device (3) at one side of left and right sides of a machine body frame (1), and a grain tank (5) at the other side of the left and right sides thereof. A DPF (17) for removing particulate matter in the waste gas discharged from an engine (11) is disposed between the threshing device (3) and the grain tank (5). Downstream side connection piping (22) connected to the exhaust side of the DPF (17) is set upward while being housed in a recess (27) formed in an inner side plate (28) of the machine body inside the grain tank (5). A suction inlet (54) of a pre-cleaner (48) connected to the upstream side of an air cleaner (40) for cleaning the air to be supplied to the engine (11) is disposed in the position of the lower side from an air outlet (55) of the upper end of the downstream side connection piping (22).

Description

  The present invention relates to a combine.

  2. Description of the Related Art Conventionally, a configuration in which an engine is provided below a driver's seat in a control unit and an air cleaner is provided in an engine room below the driver's seat is known (Patent Document 1).

JP 2010-22244 A

  In the above known example, an air cleaner is installed in a narrow engine room. Therefore, the size of the air cleaner is restricted due to the restriction of the installation space, so that the intake efficiency is lowered, and the engine performance is fully exhibited. There is a problem that it cannot be done.

  In the present application, the installation location of the air cleaner is devised so that the intake efficiency is improved and the performance of the engine can be fully exhibited.

  According to the first aspect of the present invention, the threshing device (3) is provided on the left and right sides of the machine frame (1) provided with the traveling device (2), and the discharge auger (33 In a combine provided with an engine (11) and a control unit (6) disposed above the engine (11) in front of the grain tank (5). A DPF (17) for removing particulate matter in the exhaust gas discharged from the engine (11) is disposed between the threshing device (3) and the Glen tank (5), and the DPF (17) The lower side connection pipe (22) connected to the exhaust side is raised upward while being housed in a recess (27) formed in the inner side plate (28) inside the fuselage of the Glen tank (5), Air cleaner that cleans the air supplied to the engine (11) The intake port (54) of the pre-cleaner (48) connected to the upper side of the inner (40) is arranged at a position below the exhaust port (55) at the upper end of the lower connection pipe (22). It is a combine characterized by.

  According to a second aspect of the present invention, the control unit (6) is configured by surrounding the driver's seat (10) and an operation panel around the driver's seat (10) with a cabin (50), and the cabin (50 The threshing device (3) side portion of the threshing device (3) is provided with a side hatch (52), and the air cleaner (40) is disposed in a rear portion of the side hatch (52). It is.

  The invention according to claim 3 is the combine according to claim 2, wherein at least a part of the air cleaner (40) enters the lower side of the discharge auger (33) housed on the fuselage. is there.

  The invention according to claim 4 is configured such that the air cleaner (40) is disposed between the discharge auger (33) housed on the fuselage and the control unit (6) in plan view. The combine described in 1.

  According to the first aspect of the present invention, the high-temperature exhaust gas discharged from the exhaust port (55) at the upper end of the lower connection pipe (22) is sucked from the intake port (54) of the precleaner (48). Without being able to inhale air with sufficient oxygen concentration, the heat balance does not deteriorate.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the air cleaner (40) can be installed without sacrificing the opening and closing of the side hatch (52) of the cabin (50). In addition, the side hatch (52) can be opened to perform maintenance of the air cleaner (40) from inside the cabin (50).

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, even when a large air cleaner (40) is provided, the range of motion of the discharge auger (33) is not reduced, and the grain The discharging operation can be easily performed.

  According to the fourth aspect of the present invention, the air cleaner (40) can be easily maintained from the control section (6) when the effects of the second aspect of the present invention are achieved.

The side view of a combine. The top view of a combine. The top view near the recessed part of a Glen tank. The rear view of a combine. The same side view. The rear view. The same side view. FIG. The top view near an engine. The side view of the combine which used the control part as the cabin. The schematic rear view of a threshing apparatus and a Glen tank. The front view of the state which opened the side part hatch. The rear view of a combine. The same side view. The rear view of a combine.

  An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a machine body frame of a work machine, and this application is an embodiment of a combine.

  A traveling device 2 is provided below the body frame 1, and a threshing device 3 is provided on one side above the body frame 1. A mowing unit 4 is provided in front of the threshing device 3, and a glen tank 5 is provided on the side of the threshing device 3. 6 is a control part.

  An engine 11 is provided below the driver's seat 10 of the control unit 6 (FIG. 1), an exhaust pipe 14 of an exhaust device 12 is connected to the engine 11, and an exhaust purification device 15 is provided in the middle of the exhaust pipe 14.

  The exhaust purification device 15 is constituted by a DPF 17 (Diesel particulate filter), and the DPF 17 removes particulate matter in the exhaust gas.

  The DPF 17 has a shape that is long in the front-rear direction, and is disposed behind the engine 11 and between the grain tank 5 and the threshing device 3.

  The front side portion of the DPF 17 is connected to an upper side connection pipe 21 that constitutes a part of the exhaust pipe 14 connected to the engine 11, and the rear side portion of the DPF 17 is a lower side that constitutes a part of the exhaust pipe 14. The side connection pipe 22 is connected.

  The lower-side connection pipe 22 is arranged along the side of the first cereal cylinder 25 that rises upward and feeds and transfers grains from the threshing device 3 to the grain tank 5. A recess 27 that accommodates the first cereal cylinder 25 is formed integrally with the Glen tank 5, and the first cereal cylinder 25 and the lower connection pipe 22 are accommodated in the recess 27 (FIG. 3).

  The DPF 17 raises the rotation of the engine 11 during non-working and burns and removes soot and the like adhering to the DPF 17 to perform regeneration work as appropriate, so that the exhaust temperature becomes high. It is preferable that 22 is raised and disposed so as to discharge exhaust gas upward. Further, the lower side connection is provided in a recess 27 that accommodates the first cereal cylinder 25 formed in the Glen tank 5. By accommodating the piping 22, the volume reduction of the Glen tank 5 is minimized.

  That is, in order to maximize the volume of the Glen tank 5, the inner side plate 28 of the Glen tank 5 is brought as close as possible to the threshing device 3 side, and the concave portion 27 for accommodating the first cereal cylinder 25 is formed on the inner side plate 28. In order to accommodate the lower connection pipe 22 in the recess 27, the lower connection pipe 22 is arranged along the first cereal cylinder 25, and the recess 27 is arranged on the lower side accordingly. It is set as the structure which forms one space in planar view so that the connection piping 22 and the first cereal cylinder 25 may be accommodated integrally.

  Therefore, the lower-side connection pipe 22 can be arranged with the decrease in the volume of the Glen tank 5 being minimized.

  The lower connection pipe 22 is divided into a lower exhaust pipe 30 and an upper exhaust pipe 31 in the vicinity of the upper end of the first cereal cylinder 25, and the lower exhaust pipe 30 is fixedly attached to the machine body side. The upper exhaust pipe 31 is detachably attached to the lower exhaust pipe 30.

  Therefore, only the upper exhaust pipe 31 can be removed at the time of maintenance of the first cereal cylinder 25, and the maintenance workability is improved.

  Further, the upper end of the upper exhaust pipe 31 is positioned above the upper surface of the grain tank 5 and the discharge auger 33 that discharges the grains in the grain tank in a side view (FIG. 1).

  Therefore, the exhaust gas discharged from the upper exhaust pipe 31 can be prevented from directly hitting the glen tank 5 or the discharge auger 33.

  The discharge auger 33 is configured such that the tip thereof can freely move up and down and turn.

  A pitching cylinder frame 35 for attaching a pitching cylinder (not shown) for correcting the front / rear inclination of the machine body frame 1 is provided between the threshing device 3 and the grain tank 5 (FIGS. 6 and 7). The DPF 17 is disposed between the two.

  Therefore, the DPF 17 can be disposed as close to the engine 11 as possible, and the DPF 17 is heated by heat radiation from the engine 11 so that the regeneration efficiency of the regeneration work of the DPF 17 can be improved.

  The DPF 17 is disposed between the threshing device 3 and the glen tank 5 in a side view, and is disposed at a substantially upper center position before and after the ground contact surface of the crawler 36 of the traveling device 2.

  The upper exhaust pipe 31 of the lower connection pipe 22 is bent in an L shape with respect to the lower exhaust pipe 30, the upper exhaust pipe 31 is provided above the threshing device 3, and the upper exhaust pipe 31 on the Glen tank 5 side. A cover 37 surrounding the upper exhaust pipe 31 is provided. The cover 37 is provided on the side of the glen tank 5 at a predetermined distance from the upper exhaust pipe 31.

  Therefore, the cover 37 does not contact the upper exhaust pipe 31 and the temperature of the cover 37 is unlikely to rise.

  Further, the mounting structure of the cover 37 is simplified.

  Further, the cover 37 moves together with the Glen tank 5 when the Glen tank 5 is opened outside.

  Further, the mounting structure of the cover 37 is simplified.

  The cover 37 surrounds the side of the upper exhaust pipe 31 on the Glen tank 5 side, and is open without surrounding the side of the upper exhaust pipe 31 on the threshing apparatus 3 side.

  Therefore, since the threshing device 3 side of the cover 37 is opened, the presence of the cover 37 does not hinder the outer opening operation of the glen tank 5 and improves the maintainability.

  An air cleaner 40 that cleans the intake air supplied to the engine 11 is disposed above the threshing device 3.

  Therefore, since it arrange | positions not in a narrow engine room but on the upper side of the threshing apparatus 3, the air cleaner 40 can be enlarged and the intake efficiency of the engine 11 can be improved.

  That is, since the air cleaner 40 is disposed on the upper side of the threshing device 3, the air cleaner 40 can be disposed in the vicinity of the engine 11, and the size of the air cleaner 40 can be increased without lengthening the piping between the engine 11 and the air cleaner 40. It becomes possible.

  In the present embodiment, the air cleaner 40 is disposed between the upper surface of the threshing device 3 behind the control unit 6 and the discharge auger 33. The air cleaner 40 is attached to a support member 42 provided on the upper surface of the threshing device 3.

  Therefore, the support structure of the air cleaner 40 is simplified.

  Moreover, the air cleaner 40 can be installed by effectively utilizing the space between the upper surface of the threshing device 3 behind the control unit 6 and the discharge auger 33, and the mounting space is made more compact.

  The support member 42 is attached to the fixed cover 44 among the upper cover 43 surrounding the upper surface of the threshing device 3. Reference numeral 45 denotes a moving side cover that opens the upper surface of a handling cylinder (not shown).

  Therefore, the air cleaner 40 is installed by effectively using the space between the upper surface of the threshing device 3 behind the control unit 6 and the discharge auger 33. This can be done without removing the piping of the cleaner 40 and the air cleaner 40, and the moving side cover 45 can be easily opened and closed.

  A pre-cleaner 48 is provided in the upper intake path of the air cleaner 40.

  Conventionally, the air cleaner 40 is installed in an engine room where clean outside air is introduced by a radiator cover (not shown). However, clean air can be introduced into the air cleaner 40 by a pre-cleaner 48 instead of the radiator cover. The air cleaner 40 can be disposed on the upper side of the threshing device 3, and the air cleaner 40 can be enlarged.

  The precleaner 48 is attached to the support member 42.

  Therefore, the support structure of the precleaner 48 is simplified.

  The air cleaner 40 and the precleaner 48 can be preliminarily piped and assembled, and the assemblability can be improved.

  The pre-cleaner 48 is disposed above the air cleaner 40, and is disposed farther from the discharge auger 33 during storage than the air cleaner 40 in a plan view.

  Therefore, interference with the discharge auger 33 during turning is prevented.

  The pre-cleaner 48 is disposed outside the glen tank 5 with respect to the air cleaner 40.

  Therefore, the precleaner 48 can be maintained from the control unit 6.

  Further, since the air cleaner 40 and the precleaner 48 are provided to be removed from the discharge auger 33 toward the glen tank 5, the air cleaner 40 and the precleaner 48 do not hinder the upper and lower sides of the discharge auger 33 and do not deteriorate the operability of the discharge auger 33.

  Similarly, since the air cleaner 40 and the precleaner 48 are provided closer to the glen tank 5 than the discharge auger 33, opening and closing of the moving side cover 45 is not hindered.

  The part on the threshing device 3 side in the rear part of the air cleaner 40 is made to enter the lower side of the discharge auger 33 when stored in a plan view.

  Therefore, the range of motion of the discharge auger 33 is not narrowed, and the grain discharge operation is facilitated.

  The precleaner 48 also has the air cleaner 40 positioned below the discharge auger 33 and the precleaner 48 positioned above the discharge auger 33 in a side view.

  Therefore, the air cleaner 40 and the precleaner 48 can be easily maintained from the control unit 6.

  In addition, the space can be used effectively and the installation space can be made more compact.

  The air cleaner 40 is arranged such that a part of the air cleaner 40 is overlapped with the discharge auger 33 in a plan view.

  Therefore, the air cleaner 40 and the precleaner 48 can be easily maintained from the control unit 6.

  Further, the air cleaner 40 can be mounted on the rear side of the control unit 6. Even if the control unit 6 has a so-called cabin specification (FIG. 9), maintenance of the air cleaner 40 is facilitated.

  The air cleaner 40 is disposed between the control unit 6 and the discharge auger 33 when stored in a plan view.

  Therefore, maintenance of the air cleaner 40 can be easily performed from the control unit 6.

  In this case, the control unit 6 is so-called cabin 50 specification (FIG. 9), and the air cleaner 40 can be maintained when the side hatch 52 of the cabin 50 is opened.

  In addition, the space can be used effectively and the installation space can be made more compact.

  The air cleaner 40 is provided with a cover (lid) 51 that can be opened and closed (detached), and the air cleaner 40 is disposed so that the cover 51 is on the front side in the aircraft traveling direction.

  Therefore, it is possible to easily remove the cover 51 from the control unit 6 and maintain the air cleaner 40.

  In addition, the air cleaner 40 is disposed behind the side hatch 52 of the cabin 50.

  Therefore, even if the air cleaner 40 is provided, the side hatch 52 can be opened and closed. When the side hatch 52 is opened, the air cleaner 40 can be maintained.

  Moreover, the confirmation of the posture of carrying the cereal into the cereal inlet (not shown) of the threshing device 3 can be easily performed.

  It also facilitates measures such as removing weeds at the cereal inlet.

  The air cleaner 40 is disposed on the rear left side of the control unit 6 and the front end of the upper cover 43 is substantially aligned with the front end of the upper cover 43 (FIGS. 1 and 9).

  Therefore, maintenance of the air cleaner 40 can be easily performed from the control unit 6.

  Moreover, the confirmation of the posture of carrying the cereal into the cereal inlet (not shown) of the threshing device 3 can be easily performed.

  It also facilitates measures such as removing weeds at the cereal inlet.

  The height of the intake port 54 of the precleaner 48 is arranged below the exhaust port 55 of the lower connection pipe 22.

  Since the hot exhaust gas discharged from the lower connection pipe 22 climbs upward, the intake port 54 of the pre-cleaner 48 positioned below the exhaust port 55 does not suck the hot exhaust gas and is sufficient. Can inhale air with oxygen concentration and does not deteriorate heat balance.

  The height of the air inlet 54 of the precleaner 48 is positioned sufficiently above the engine 11, and the straight portion of the pipe 57 between the air cleaner 40 and the engine 11 is made longer than the horizontal direction in the vertical direction. An air mass sensor 58 is provided in a vertical straight line portion of the pipe 57.

  For this reason, the air mass sensor 58 is provided in the straight portion of the piping 57 between the air cleaner 40 and the engine 11 with improved intake air rectification, so that the detection accuracy of the air mass sensor 58 is sufficiently secured and the piping 57 is provided. The space for mounting the air mass sensor 58 can be effectively used.

  The piping 57 between the air cleaner 40 and the engine 11 is formed longer than the piping 60 between the air cleaner 40 and the precleaner 48 (FIG. 15).

Therefore, the vertical straight line portion of the pipe 57 can be secured without changing the total pipe distance from the precleaner 48 to the engine 11, and the mounting space can be used effectively.
(Operation of Example)
The engine 11 is started, each part of the threshing device 3 and the cutting unit 4 is driven by the rotation of the engine 11, and the traveling device 2 is driven to run and perform the cutting and threshing work.

  The engine 11 transmits the driving force obtained by burning the supplied fuel to each part, and the burned fuel is discharged out of the machine through the exhaust device 12 as exhaust gas.

  Since the exhaust gas purification device 15 is provided in the exhaust device 12, the particulate matter in the exhaust gas of the engine 11 is filtered and removed by the exhaust gas purification device 15.

  Since the exhaust purification device 15 is constituted by the DPF 17, the exhaust gas from the engine 11 is sent to the DPF 17 to remove particulate matter.

  The DPF 17 has a shape that is long in the front-rear direction, and is disposed behind the engine 11 and between the grain tank 5 and the threshing device 3. A front side portion of the DPF 17 includes an exhaust pipe 14 connected to the engine 11. The upper side connection pipe 21 constituting a part is connected, the lower side connection pipe 22 constituting a part of the exhaust pipe 14 is connected to the rear side part of the DPF 17, and the lower side connection pipe 22 stands upward. The grain tank 5 is disposed along the side of the first cereal cylinder 25 that feeds and transfers the grain from the threshing device 3 to the grain tank 5. Since the concave portion 27 is formed integrally and the first cereal cylinder 25 and the lower connection pipe 22 are accommodated in the concave portion 27, the concave portion 27 that accommodates the first cereal cylinder 25 formed in the Glen tank 5. The lower connection pipe 22 is stored inside By, to minimize the reduction in volume of the grain tank 5.

  In addition, the DPF 17 raises the rotation of the engine 11 during non-working and burns and removes soot and the like adhering to the DPF 17 to perform regeneration work as appropriate, but raises the lower connection pipe 22 upward. Therefore, the high-temperature exhaust gas is discharged from the lower side connection pipe 22 raised upward, so that the exhaust gas is discharged upward and each part around the machine body is prevented from being heated by the exhaust gas.

  That is, in order to maximize the volume of the Glen tank 5, the inner side plate inner side plate 28 of the Glen tank 5 is made as close as possible to the threshing device 3 side, and the inner side plate 28 accommodates the first cereal cylinder 25. 27, in order to accommodate the lower connection pipe 22 in the recess 27, the lower connection pipe 22 is arranged along the first cereal cylinder 25, and accordingly, the recess 27 is arranged on the lower side. Since one space is formed in a plan view so that the connection pipe 22 and the first cereal cylinder 25 are integrally accommodated, the lower-side connection pipe 22 is arranged with the decrease in the volume of the Glen tank 5 being minimized. Be made.

  The lower side connection pipe 22 is divided into a lower exhaust pipe 30 and an upper exhaust pipe 31 in the vicinity of the upper end of the first cereal cylinder 25, and the lower exhaust pipe 30 is fixedly attached to the machine body side. Since the upper exhaust pipe 31 is detachably attached to the lower exhaust pipe 30, only the upper exhaust pipe 31 can be removed at the time of maintenance of the first cereal cylinder 25, and the maintenance workability is improved. To do.

  Moreover, since the upper end of the upper exhaust pipe 31 is located above the upper surface of the Glen tank 5 and the discharge auger 33 that discharges the grains in the Glen tank in a side view, the exhaust discharged from the upper exhaust pipe 31. The gas can be prevented from directly hitting the Glen tank 5 or the discharge auger 33.

  A pitching cylinder frame 35 for mounting a pitching cylinder (not shown) for correcting the front / rear inclination of the machine body frame 1 is provided between the threshing device 3 and the grain tank 5. Therefore, the DPF 17 can be arranged as close to the engine 11 as possible, and the DPF 17 is heated by the heat radiation from the engine 11 so that the regeneration efficiency of the regeneration work of the DPF 17 can be improved.

  Since the DPF 17 is disposed between the threshing device 3 and the Glen tank 5 in a side view, and is disposed at a position substantially above the center of the grounding surface of the crawler 36 of the traveling device 2, the front-rear weight balance is It is possible to improve and stabilize the running posture.

  The upper exhaust pipe 31 of the lower connection pipe 22 is bent in an L shape with respect to the lower exhaust pipe 30, the upper exhaust pipe 31 is provided above the threshing device 3, and is connected to the upper exhaust pipe 31 on the grain tank 5 side. Since the cover 37 surrounding the upper exhaust pipe 31 is provided, the cover 37 does not contact the upper exhaust pipe 31, the temperature of the cover 37 is unlikely to rise, and the mounting structure of the cover 37 is simplified. .

  The cover 37 surrounds the side of the upper exhaust pipe 31 on the side of the Glen tank 5, opens the side of the upper exhaust pipe 31 on the side of the threshing apparatus 3 without surrounding, and opens the side of the threshing apparatus 3 of the cover 37. Therefore, the presence of the cover 37 does not hinder the outside opening operation of the glen tank 5 and improves the maintainability.

  Since the air cleaner 40 that cleans the intake air supplied to the engine 11 is arranged on the upper side of the threshing device 3, it is arranged not on the narrow engine room but on the upper side of the threshing device 3, so that the size of the air cleaner 40 is increased. Thus, the intake efficiency of the engine 11 can be improved.

  In the present embodiment, the air cleaner 40 is disposed between the upper surface of the threshing device 3 behind the control unit 6 and the discharge auger 33. Since the air cleaner 40 is attached to the support member 42 provided on the upper surface of the threshing device 3, the support structure of the air cleaner 40 is simplified.

  Moreover, since the air cleaner 40 can be installed using the space between the upper surface of the threshing device 3 behind the control unit 6 and the discharge auger 33, the installation space is made more compact.

  Since the support member 42 is attached to the fixed side cover 44 among the upper cover 43 surrounding the upper surface of the threshing device 3, a space between the upper surface of the threshing device 3 behind the control unit 6 and the discharge auger 33 is provided. Although the air cleaner 40 is configured to be used effectively, the opening and closing of the moving side cover 45 can be easily performed without removing the air cleaner 40 and the piping of the air cleaner 40 when opening and closing the moving side cover 45. To do.

  A pre-cleaner 48 is provided in the air intake path on the upper side of the air cleaner 40, and the pre-cleaner 48 is attached to the support member 42. Therefore, the support structure of the pre-cleaner 48 is simplified.

  Further, since the air cleaner 40 and the precleaner 48 can be preliminarily piped and assembled, the assemblability can be improved.

  Since the pre-cleaner 48 is disposed above the air cleaner 40 and is disposed farther from the discharge auger 33 at the time of storage than the air cleaner 40 in a plan view, interference with the discharge auger 33 at the time of turning is prevented. To do.

  Further, since the precleaner 48 is disposed outside the glen tank 5 with respect to the air cleaner 40, the precleaner 48 can be maintained from the control unit 6.

  Further, since the air cleaner 40 and the precleaner 48 are provided to be removed from the discharge auger 33 toward the glen tank 5, the air cleaner 40 and the precleaner 48 do not hinder the upper and lower sides of the discharge auger 33 and do not deteriorate the operability of the discharge auger 33.

  Similarly, since the air cleaner 40 and the precleaner 48 are provided closer to the glen tank 5 than the discharge auger 33, opening and closing of the moving side cover 45 is not hindered.

  In addition, since the air cleaner 40 is positioned below the discharge auger 33 when stored, the air cleaner 40 does not narrow the movable range of the discharge auger 33 and facilitates the grain discharging operation.

  Further, the pre-cleaner 48 also has the air cleaner 40 positioned below the discharge auger 33 and the pre-cleaner 48 positioned above the discharge auger 33 in the side view. The pre-cleaner 48 can be maintained, and the space can be used effectively to make the installation space more compact.

  In addition, since the air cleaner 40 is partially overlapped with the discharge auger 33 in plan view, the air cleaner 40 and the pre-cleaner 48 can be easily maintained from the control unit 6.

  Further, the air cleaner 40 can be mounted behind the control unit 6, and the maintenance of the air cleaner 40 is facilitated even if the control unit 6 has a so-called cabin specification.

  Since the air cleaner 40 is disposed between the control unit 6 and the discharge auger 33 when stored in a plan view, the air cleaner 40 can be easily maintained from the control unit 6.

  In this case, the control unit 6 has a so-called cabin 50 specification and is configured so that maintenance of the air cleaner 40 can be performed when the side hatch 52 of the cabin 50 is opened. Therefore, the space between the cabin 50 and the threshing device 3 is effective. It can be used to make the installation space more compact.

  The air cleaner 40 is provided with a cover 51 that can be opened and closed (detached), and the air cleaner 40 is arranged so that the cover 51 is on the front side in the aircraft traveling direction. By removing the, the air cleaner 40 can be easily maintained from the control unit 6.

  Further, since the air cleaner 40 is arranged behind the side hatch 52 of the cabin 50, even if the air cleaner 40 is provided, the side hatch 52 can be opened and closed. When the side hatch 52 is opened, the maintenance of the air cleaner 40 is performed. In addition, it is possible to easily confirm the posture of bringing the culm into the culm inlet (not shown) of the threshing device 3.

  It also facilitates measures such as removing weeds at the cereal inlet.

  The air cleaner 40 is located on the rear left side of the control unit 6, and the front end of the air cleaner 40 is substantially aligned with the front end of the upper cover 43. Maintenance becomes possible.

  Moreover, even if the air cleaner 40 is installed between the control unit 6 and the threshing device 3, it is possible to easily confirm the posture of bringing the culm into the culm inlet (not shown) of the threshing device 3.

  It also facilitates measures such as removing weeds at the cereal inlet.

  Since the height of the intake port 54 of the pre-cleaner 48 is arranged below the exhaust port 55 of the lower connection pipe 22, the high-temperature exhaust gas discharged from the lower connection pipe 22 climbs upward. Therefore, the intake port 54 of the precleaner 48 positioned below the exhaust port 55 can suck in air having a sufficient oxygen concentration without sucking high-temperature exhaust gas, and does not deteriorate the heat balance.

  The height of the intake port 54 of the precleaner 48 is positioned sufficiently above the engine 11, and the straight portion of the pipe 57 between the air cleaner 40 and the engine 11 is made longer than the horizontal direction in the vertical direction. Since the air mass sensor 58 is provided in the vertical straight line portion of the air cleaner 40, the air mass sensor 58 is provided in the straight line portion of the pipe 57 between the air cleaner 40 and the engine 11 with improved intake air rectification. Is sufficiently secured, and the mounting space for the pipe 57 and the air mass sensor 58 can be used effectively.

  Since the pipe 57 between the air cleaner 40 and the engine 11 is formed longer than the pipe 60 between the air cleaner 40 and the pre-cleaner 48, the total pipe distance from the pre-cleaner 48 to the engine 11 is not changed. A vertical straight portion of the pipe 57 can be secured, and the installation space can be used effectively.

  Each of the above-described embodiments is illustrated and described separately or mixed for easy understanding. However, these embodiments can be combined in various ways, and these expressions can be used for configuration and operation. However, there is a case where a synergistic effect is obtained.

DESCRIPTION OF SYMBOLS 1 Airframe frame 2 Traveling device 3 Threshing device 5 Glen tank 6 Control part 10 Driver's seat 11 Engine 17 DPF
22 Lower side connection piping 27 Recess 28 Inner side plate 33 Discharge auger 40 Air cleaner 48 Precleaner 50 Cabin 52 Side hatch 54 Inlet 55 Inlet

Claims (4)

  A grain tank (5) provided with a threshing device (3) on one side of the left and right sides of the machine frame (1) provided with the traveling device (2), and provided with a discharge auger (33) on the left and right sides of the machine frame (1). In a combine provided with an engine (11) and a control unit (6) disposed above the engine (11) in front of the Glen tank (5), the threshing device (3) and the Glen A DPF (17) for removing particulate matter in the exhaust gas discharged from the engine (11) is disposed between the tank (5) and the lower side connection connected to the exhaust side of the DPF (17). The pipe (22) is raised upward in a state where it is accommodated in a recess (27) formed in the inner side plate (28) inside the fuselage tank (5), and the air supplied to the engine (11) is supplied. The upper side of the air cleaner (40) to be cleaned Combine, characterized in that the connected precleaner (48) of the inlet (54) and disposed at a position lower than the upper end of the exhaust port (55) of the downstream side connection pipe (22).   The steering section (6) is configured by surrounding a driver seat (10) and an operation panel around the driver seat (10) with a cabin (50), and is arranged on the threshing device (3) side of the cabin (50). The combine according to claim 1, wherein a part is provided with a side hatch (52), and the air cleaner (40) is arranged at a part rearward of the side hatch (52).   The combine according to claim 2, wherein at least a part of the air cleaner (40) enters a lower side of a discharge auger (33) housed on the fuselage.   The combine according to claim 2, wherein the air cleaner (40) is arranged between the discharge auger (33) housed on the fuselage and the control unit (6) in plan view.

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