JP2016220574A - combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a problem that an engine room increases in height since a muffler is provided in an upper part of an engine heretofore, and such a problem that vibration of an exhaust pipe is transmitted to a machine body frame and vibration is unnecessarily amplified since a beginning end side of the exhaust pipe is attached to a muffler vibrated together with the engine and a termination end side of the exhaust pipe is attached to the machine body frame in a fixed state.SOLUTION: A combine is provided that is configured as follows. A muffler 20 supported by a machine body frame 1 and an exhaust port 21 arranged in a front part of the engine 16 are connected together behind an engine 16, using an exhaust pipe 18 extended in a front/rear direction. An intermediate part of the exhaust pipe 18 is supported by a stay 22 provided in the engine 16 body. The stay 22 extends posterosuperiorly from a cylinder block 23 of the engine 16 and supports a portion on a rear side with respect to a base part of the stay 22 in the exhaust pipe 18.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a combine.

  Conventionally, a configuration in which a muffler for suppressing exhaust noise of the engine is provided on the upper part of the engine, and the end side of the exhaust pipe connected to the muffler is linearly extended rearward and attached to the body frame side is known ( Patent Document 1)

JP 2011-55784 A

The known example has a problem that the height of the engine room is increased because the muffler is provided in the upper part of the engine.
The exhaust pipe is attached to a muffler that vibrates with the engine, and the exhaust pipe end is attached to the fuselage frame in a fixed state, so the vibration of the exhaust pipe is transmitted to the fuselage frame, causing unnecessary vibration. There is a problem of amplification.
In addition, since the exhaust pipe extends rearward in a straight line on the end side, there is a problem that an installation space for the exhaust pipe is widened in the front-rear direction.
In the present application, the configuration of the exhaust pipe is devised to reduce the installation space above and below and before and after the exhaust pipe and to suppress vibration.

In the first aspect of the invention, at the rear of the engine 16, the muffler 20 supported by the fuselage frame 1 and the exhaust port 21 provided at the front portion of the engine 16 are connected by an exhaust pipe 18 extending in the front-rear direction. The intermediate portion of the exhaust pipe 18 is supported by a stay 22 provided in the engine 16 body. The stay 22 extends rearward and upward from the cylinder block 23 of the engine 16 and is behind the base portion of the stay 22 in the exhaust pipe 18. The exhaust of the engine 16 is exhausted from the muffler 20 through an exhaust pipe 18 extending in the front-rear direction from an exhaust port 21 provided at the front of the engine 16. The
In the invention according to claim 2, the exhaust pipe 18 is divided into a front exhaust pipe 34 and a rear exhaust pipe 35 in the front-rear direction, and the front exhaust pipe 34 is supported by the stay 22 on the engine 16 side. The exhaust pipe 35 is provided with the muffler 20 and is supported on the machine body side. The front exhaust pipe 34 and the rear exhaust pipe 35 are combined with each other via a diffuser 40. 16 enters the diffuser 40 of the rear exhaust pipe 35 of the exhaust pipe 18 through the front exhaust pipe 34 of the exhaust pipe 18 supported by the stay 22 on the engine 16 side from the exhaust port 21 provided in the front part of the engine 16. 40 passes through the muffler 20 of the rear exhaust pipe 35 and is exhausted.
According to a third aspect of the present invention, an intake pipe 31 for supplying combustion air to the intake port 30 of the engine 16 is disposed above the engine 16, and the exhaust pipe 18 bypasses the side of the intake pipe 31. Thus, the exhaust gas is exhausted by an exhaust pipe 18 arranged around the side of an intake pipe 31 that supplies combustion air to an intake port 30 of the engine 16.
According to a fourth aspect of the present invention, the exhaust pipe 18 extends substantially vertically downward from the rear end portion of the lateral exhaust pipe 33 in the front-rear direction that constitutes a part of the exhaust pipe 18 to run the aircraft. Of the pair of front and rear crawler feet of the travel device 2, the exhaust pipe 18 is combined with the exhaust pipe 18 at a position in front of the rear crawler foot 25, and the exhaust pipe 18 is a longitudinal direction of the exhaust pipe 18. The exhaust is guided substantially vertically downward from the rear end of the horizontal exhaust pipe 33 and passes through the muffler 20 at the front side of the rear crawler foot 25 of the traveling device 2.
According to a fifth aspect of the present invention, the exhaust pipe 18 is divided into a front exhaust pipe 34 and a rear exhaust pipe 35 in the front-rear direction, and the front exhaust pipe 34 is connected to the exhaust port 21 of the engine 16 in the left-right direction. An exhaust pipe start end side exhaust pipe 36, a front and rear horizontal exhaust pipe 33 integrally provided at the end of the start end side exhaust pipe 36, and an upper vertical exhaust pipe 37 connected to the end side of the horizontal exhaust pipe 33 in the exhaust direction. The rear exhaust pipe 35 includes a vertical lower vertical exhaust pipe 38, a terminal exhaust pipe 39 to which the muffler 20 connected to the lower vertical exhaust pipe 38 is attached, and a lower side. The combiner is configured to have a diffuser 40 provided on the start end side of the vertical exhaust pipe 38, and the exhaust of the engine 16 is exhausted from the front exhaust pipe start end side exhaust pipe 36 of the front exhaust pipe 34 connected to the exhaust port 21. A longitudinal exhaust pipe 33 in the front-rear direction and a vertical upper longitudinal exhaust pipe 37. The flow enters the lower vertical exhaust pipe 38 from the diffuser 40 of the rear exhaust pipe 35, and is exhausted through the muffler 20 from the lower vertical exhaust pipe 38 through the end-side exhaust pipe 39.

In the first aspect of the invention, since the muffler 20 is arranged behind the engine 16, the engine room can be made smaller in the vertical direction, and the exhaust pipe 18 is supported by the cylinder block 23 of the engine 16. Since the exhaust pipe 18 is supported by a stay 22 attached to the engine 16, the exhaust pipe 18 and the stay 22 vibrate integrally with the engine 16, and the exhaust pipe 18 and the stay 22 are increased. Can be prevented from being damaged.
In the second aspect of the present invention, the exhaust pipe 18 is divided into a front exhaust pipe 34 and a rear exhaust pipe 35 in the front-rear direction. The front exhaust pipe 34 is on the engine 16 side, and the rear exhaust pipe 35 is on the body frame 1 side. Since the front exhaust pipe 34 and the rear exhaust pipe 35 are connected via the diffuser 40, the front exhaust pipe 34 and the rear exhaust pipe 35 can be supported stably.
In the third aspect of the invention, the exhaust pipe 18 is bypassed from the intake pipe 31, so that the intake pipe 31 and the exhaust pipe 18 can be prevented from interfering with each other. It can prevent being heated.
In the invention according to the fourth aspect, since a part of the exhaust pipe 18 extends substantially vertically downward and is connected to the muffler 20, the exhaust pipe 18 can be arranged compactly in the front-rear direction, and the space behind the engine 16 Can be used effectively.
In the invention according to claim 5, the exhaust pipe 18 can be rationally arranged to increase the support rigidity of the exhaust pipe 18, and the damage to the exhaust pipe 18 can be prevented and the durability can be improved. .

The side view of a combine. The side view of the combine which omitted the reaping device and the threshing device. Front view of the vicinity of the engine and the Glen tank. The side view of an engine and a threshing apparatus. The top view of an engine, a threshing apparatus, and a Glen tank. The side view near an engine. The top view near an engine.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a body frame, 2 a traveling device provided at the lower part of the body frame 1, 3 a threshing device provided on the body frame 1, 4 a reaping device, and 5 a glen. A tank 6 is a control unit provided on one side in front of the threshing device 3.
The reaping device 4 includes a reel 12, a table 11 constituted by a left and right side plate 7, a bottom plate 9 positioned below the auger 8, and a rear plate 10 provided to connect the left and right side plates 7 and the bottom plate 9, The cutting blade 13 and the auger 8 are provided, and the tip of the transport elevator 14 is attached to the table 11, and the base of the transport elevator 14 is connected to the threshing chamber of the threshing device 3.
An engine 16 is provided below the driver seat 15 of the control unit 6 (FIG. 2), and an exhaust pipe 18 of an exhaust device 17 is connected to the engine 16.

A muffler (silencer) 20 is supported on the fuselage frame 1 behind the engine 16, and an exhaust port 21 provided at the front of the engine 16 and the muffler 20 are connected by an exhaust pipe 18 extending in the front-rear direction. The pipe 18 is supported by a stay 22 provided in the main body of the engine 16, and the stay 22 extends rearward and upward from the cylinder block 23 of the engine 16, and supports a portion of the exhaust pipe 18 that is behind the base portion of the stay 22. To do.
That is, a muffler 20 is provided at the end of the exhaust pipe 18, and the muffler 20 is attached to be supported by the body frame 1 behind the engine 16.
Further, the exhaust port 21 provided in the front portion of the engine 16 and the muffler 20 are connected by the exhaust pipe 18 extending in the front-rear direction.
The exhaust pipe 18 is provided to be supported by a stay 22 attached to the engine 16 body. The stay 22 extends rearward and upward from a cylinder block 23 provided at a predetermined position on the upper surface of the engine 16 and supports a predetermined portion of the exhaust pipe 18 behind the base portion of the stay 22.

The muffler 20 is mounted and mounted on the body frame 1 so as to be positioned in front of the rear crawler foot 25 of the pair of front and rear crawler feet that support the wheel frame 24 of the traveling device 2.
Therefore, the muffler 20 is protected by the rear crawler foot 25 located on the rear side of the muffler 20, and prevents the muffler 20 from interfering with an obstacle on the field during reverse travel.
An intake pipe 31 that supplies combustion air to the intake port 30 of the engine 16 is disposed above the engine 16, and the exhaust pipe 18 is routed around the side of the intake pipe 31.
Therefore, the interference between the intake pipe 31 and the exhaust pipe 18 can be prevented, the exhaust pipe 18 is lengthened, the exhaust temperature in the exhaust pipe 18 is lowered, and the intake pipe 31 is bypassed. It is possible to prevent the air in the intake pipe 31 from being heated by the exhaust pipe 18.

The exhaust pipe 18 is extended from the rear end portion of the horizontal exhaust pipe 33 in the front-rear direction constituting a part of the exhaust pipe 18 substantially vertically downward, and a pair of front and rear crawlers of the traveling device 2 that travels the airframe. The muffler 20 is provided in the exhaust pipe 18 at a position in front of the rear crawler foot 25 in the foot.
Therefore, since the exhaust pipe 18 has an upper vertical exhaust pipe 37 (described later) extending substantially vertically downward, the arrangement of the exhaust pipe 18 becomes compact in the front-rear direction, and the space behind the engine 16 can be effectively utilized. .
The exhaust pipe 18 is divided into a front exhaust pipe 34 and a rear exhaust pipe 35 in the front-rear direction, and the front exhaust pipe 34 is connected to the exhaust port 21 of the engine 16 in the left-right direction, and the start end side exhaust pipe 36 and the start end. A lateral exhaust pipe 33 in the front-rear direction integrally provided at the terminal end of the side exhaust pipe 36 and an upper vertical exhaust pipe 37 connected to the terminal end side of the horizontal exhaust pipe 33 in the exhaust direction. The side exhaust pipe 35 is provided on a vertical lower vertical exhaust pipe 38, a termination side exhaust pipe 39 to which the muffler 20 connected to the lower vertical exhaust pipe 38 is attached, and a start side of the lower vertical exhaust pipe 38. A diffuser 40 is included.

In other words, the exhaust pipe 18 bypasses the front side of the intake pipe 31 by the start end side exhaust pipe 36 and bypasses the side of the intake pipe 31 by the lateral exhaust pipe 33 to reach the muffler 20.
Further, since the front exhaust pipe 34 is attached to the engine 16 side and the rear exhaust pipe 35 is attached to the body frame 1 side behind the engine 16, the front exhaust pipe 34 is supported by the engine 16 and is connected to the engine 16. It vibrates as a unit and suppresses the influence of vibration of the engine 16.
On the other hand, since the rear exhaust pipe 35 is supported on the body frame 1 side and the vibration of the front exhaust pipe 34 is blocked by the diffuser 40, the vibration of the rear exhaust pipe 35 is prevented.
The muffler 20 is disposed in the vicinity of the air inlet 42 of the tang 41 of the threshing device 3.
Therefore, since the suction air sucked into the intake port of the Kara 41 passes around the muffler 20, the muffler 20 is cooled by the suction air, and the exhaust temperature of the muffler 20 is reduced and the hot air around the muffler 20 is prevented from staying. To do.
Moreover, by this, the air which the Karatsu 41 was heated and dried by the heat | fever of the muffler 20 can be supplied to the threshing apparatus 3, and the threshing performance of the threshing apparatus 3 can be improved.

In FIG. 2, 43 is a swing sorting shelf, 44 is a first catcher, 45 is a second catcher, 46 is a threshing counter pulley, 47 in FIG. 4, 47 is an output pulley of the engine 16, 48 is a belt, and 49 is a tension. It is a pulley.
A cover 50 that covers the muffler 20 is provided above the muffler 20.
Therefore, the cover 50 prevents dust, soot and the like from accumulating above the muffler 20.
The exhaust pipe 18 connecting the EX port (exhaust port 21) 51 side (exhaust turbine 52) provided at a predetermined position of the engine 16 and the muffler 20 was supported by a stay 22 fixed to the cylinder block 23.
Therefore, the exhaust pipe 18 is firmly supported by the stay 22.

The base portion of the stay 22 is attached to the cylinder block 23 side, and the tip of the stay 22 extends obliquely rearward and upward from the cylinder block 23, and the tip of the stay 22 extends from the rear portion of the horizontal exhaust pipe 33 that becomes the longitudinally extending portion of the exhaust pipe 18. To support.
Therefore, the exhaust pipe 18 is reliably supported by the stay 22 at the portion where the exhaust pipe 18 has become unstable due to stretching.
The exhaust port 21 is provided on the left side surface of the exhaust casing 55 of the exhaust turbine 52 of the supercharger of the engine 16.
That is, the engine 16 of this example is configured to take in air by the supercharger, and the supercharger casing 56 of the supercharger turbine (not shown) of the supercharger is operated in order to operate the supercharged turbine by the exhaust turbine 52. A supercharging casing 56 is provided adjacent to the right side of the casing 55, the exhaust port 21 is provided on the left side surface of the exhaust casing 55, and one end (right end) of the start end side exhaust pipe 36 of the exhaust pipe 18 is connected to the exhaust port 21. The other end of the start end side exhaust pipe 36 is extended to the left side, then extended to the rear side by the lateral exhaust pipe 33 in the front-rear direction, and bent downward on the rear side of the engine 16 to form an upper vertical exhaust pipe 37. Yes.

Therefore, the distance to the exhaust port 21 of the exhaust pipe 18 is extended, and the temperature of the exhaust gas at the exhaust port 21 can be lowered.
On the other hand, an engine IN manifold (intake port) 30 provided at the left rear portion of the engine 16 is connected to the supercharging casing 56 by the intake pipe 31, and the intake pipe 31 is disposed above the engine 16 as described above. The exhaust pipe 18 bypasses the intake pipe 31 and extends rearward.
Thus, the lower end of the upper vertical exhaust pipe 37 is fitted to the diffuser 40 from above.
The diffuser 40 is formed larger in diameter than the upper vertical exhaust pipe 37 of the exhaust pipe 18, and the lower end of the upper vertical exhaust pipe 37 is inserted and fitted from above.
The diffuser 40 is fixedly attached to a mounting frame (not shown) provided on the airframe side so that the front exhaust pipe 34 including the upper vertical exhaust pipe 37 can vibrate with respect to the diffuser 40. Is prevented from being transmitted to the diffuser 40.
A starting end portion of the lower vertical exhaust pipe 38 of the rear exhaust pipe 35 is connected to the lower portion of the diffuser 40 in a fixed state.
In the middle of the lower vertical exhaust pipe 38, a starting end portion of a termination side exhaust pipe 39 provided with the muffler 20 is connected.

An air cleaner 63 for introducing outside air into the intake pipe 31 is supported by a rear frame (engine frame) 64 of the control unit 6.
Therefore, vibration due to intake air is reduced and noise is reduced.
Further, since the air cleaner 63 is installed above the control unit 6 and the radiator cover 49B, maintenance can be performed without being disturbed by the control unit 6, and the maintainability is improved.
A stay 65 is provided so as to protrude upward from the rear frame 64, and is disposed behind the upper portion of the driver seat 15.
Therefore, the maintainability of the air cleaner 63 is improved.

A pre-cleaner 66 located above the air cleaner 63 is connected to the air cleaner 63, and the pre-cleaner 66 is supported by a stay 68 that also serves as the top cover of the first threshing cylinder 67 of the threshing device 3.
Therefore, the precleaner 66 is also connected to the first cereal cylinder 67 and is firmly supported.
An operator dustproof fan 70 is provided (FIG. 2).
The fan 70 is attached to and supported by the sun visor frame 72 of the sun visor 71 surrounding the driver seat 15.

(Operation of the embodiment)
The present invention has the above-described configuration. The engine 16 is started, the vehicle body is caused to travel by the traveling device 2, the culm on the farm is harvested by the reaping device 4, and the harvested culm is supplied to the threshing device 3 for threshing.
The engine 16 burns the supplied fuel to generate driving force, and exhaust gas generated when the fuel is burned is discharged out of the machine through the exhaust pipe 18.
A muffler 20 of the exhaust device 17 is supported on the machine body frame 1 behind the engine 16, and an exhaust port 21 provided in the front portion of the engine 16 and the muffler 20 are connected by an exhaust pipe 18 extending in the front-rear direction. The pipe 18 is supported by a stay 22 provided on the main body of the engine 16, and the stay 22 extends rearward and upward from the cylinder block 23 of the engine 16 to support a portion of the exhaust pipe 18 that is behind the base portion of the stay 22. Therefore, the muffler 20 is disposed behind the engine 16 to reduce the space around the engine 16.

Further, since the exhaust port 21 provided in the front portion of the engine 16 and the muffler 20 are connected by the exhaust pipe 18 extending in the front-rear direction, the length of the exhaust pipe 18 can be increased and the exhaust temperature can be lowered. .
Further, since the exhaust pipe 18 is supported by the stay 22 provided in the engine 16 body, the installation space for the support mechanism of the exhaust pipe 18 is reduced, and the exhaust pipe 18 is reliably supported.
In addition, the stay 22 extends rearward and upward from the cylinder block 23 of the engine 16 and is configured to support a portion of the exhaust pipe 18 on the rear side of the base portion of the stay 22. 22 can be supported, and the support of the exhaust pipe 18 can be stabilized.
Since the muffler 20 is mounted and attached to the body frame 1 so as to be positioned in front of the rear crawler foot 25 of the pair of front and rear crawler feet of the traveling device 2, the muffler 20 is located behind the muffler 20. Protected by the rear crawler foot 25 located on the side, the muffler 20 is prevented from interfering with obstacles in the field during reverse travel.

An intake pipe 31 that supplies combustion air to the intake port 30 of the engine 16 is disposed above the engine 16, and the exhaust pipe 18 is routed around the side of the intake pipe 31. And the exhaust pipe 18 can be prevented from interfering with each other, the exhaust pipe 18 can be lengthened to lower the exhaust temperature in the exhaust pipe 18, and by bypassing the intake pipe 31, Air can be prevented from being heated by the exhaust pipe 18.
The exhaust pipe 18 extends substantially vertically downward from the rear end portion of the front-rear horizontal exhaust pipe 33 that constitutes a part of the exhaust pipe 18, and is a pair of front and rear crawler feet of the traveling device 2 that travels the airframe. Since the muffler 20 is provided in the exhaust pipe 18 at a position on the front side of the rear crawler foot 25, the exhaust pipe 18 extends the upper vertical exhaust pipe 37 substantially vertically downward, and the exhaust pipe 18 is disposed. Can be made compact in the front-rear direction, and the space behind the engine 16 can be used effectively.

The exhaust pipe 18 is divided into a front exhaust pipe 34 and a rear exhaust pipe 35 in the front-rear direction. The front exhaust pipe 34 is connected to the exhaust port 21 of the engine 16 in the left-right direction, and the start-end side exhaust pipe 36. The rear exhaust pipe 33 includes a front and rear horizontal exhaust pipe 33 integrally provided at the end of the pipe 36 and an upper vertical exhaust pipe 37 connected to the end of the horizontal exhaust pipe 33 in the exhaust direction. Reference numeral 35 denotes a vertical lower vertical exhaust pipe 38, a termination side exhaust pipe 39 to which the muffler 20 connected to the lower vertical exhaust pipe 38 is attached, and a diffuser 40 provided on the start end side of the lower vertical exhaust pipe 38. Therefore, the front exhaust pipe 34 is attached to the engine 16 side, the rear exhaust pipe 35 is attached to the body frame 1 side behind the engine 16, and the front exhaust pipe 34 is attached to the engine 16 side. And vibrate integrally with the engine 16 Restrain the influence of vibration of gin 16.
On the other hand, since the rear exhaust pipe 35 is supported on the body frame 1 side and the vibration of the front exhaust pipe 34 is blocked by the diffuser 40, the vibration of the rear exhaust pipe 35 is prevented.

Since the muffler 20 is disposed on the side of the air inlet of the tang tang 41 of the threshing device 3, the suction air sucked by the air throat 41 of the tang 41 passes around the muffler 20. In this way, the exhaust temperature of the muffler 20 is reduced and the hot air around the muffler 20 is prevented from staying.
Moreover, by this, the air which the Karatsu 41 was heated and dried by the heat | fever of the muffler 20 can be supplied to the threshing apparatus 3, and the threshing performance of the threshing apparatus 3 can be improved.
Since the cover 50 that covers the muffler 20 is provided above the muffler 20, the cover 50 prevents dust, debris, and the like from accumulating above the muffler 20.
Since the exhaust pipe 18 connecting the EX port (exhaust port) 51 side (exhaust turbine 52) provided at a predetermined position of the engine 16 and the muffler 20 is supported by a stay 22 fixed to the cylinder block 23, the exhaust pipe 18 It is firmly supported by the stay 22.
The base portion of the stay 22 is attached to the cylinder block 23 side, and the tip of the stay 22 extends obliquely rearward and upward from the cylinder block 23, and the tip of the stay 22 extends from the rear portion of the horizontal exhaust pipe 33 that becomes the longitudinally extending portion of the exhaust pipe 18. Since the exhaust pipe 18 is supported, a portion of the exhaust pipe 18 that has been stretched and becomes unstable is reliably supported by the stay 22.

Since the exhaust port 21 is provided on the left side surface of the exhaust casing 55 of the exhaust turbine 52 of the supercharger of the engine 16, the distance to the exhaust port 21 of the exhaust pipe 18 is extended, and the temperature of the exhaust gas at the exhaust port 21 is increased. Can be lowered.
Further, the engine 16 of this example is configured to take in air by a supercharger, and in order to operate a supercharged casing 56 of a supercharged turbine (not shown) of the supercharger to operate the supercharged turbine by an exhaust turbine 52, the exhaust gas is discharged. A supercharging casing 56 is provided adjacent to the right side of the casing 55, the exhaust port 21 is provided on the left side surface of the exhaust casing 55, and one end (right end) of the start end side exhaust pipe 36 of the exhaust pipe 18 is connected to the exhaust port 21. The other end of the start end side exhaust pipe 36 is extended to the left side, then extended to the rear side by the lateral exhaust pipe 33 in the front-rear direction, and bent downward on the rear side of the engine 16 to form an upper vertical exhaust pipe 37. Therefore, the arrangement of the exhaust casing 55 and the supercharging casing 56 is the arrangement of the exhaust pipe 18 and the intake pipe 31 in order to lengthen the entire length of the exhaust pipe 18 and suppress the influence of hot air in the exhaust pipe 18 of the intake pipe 31. The fruit It can be rationally disposed to facilitate.

  Accordingly, the diffuser 40 of the exhaust pipe 18 is formed to have a larger diameter than the upper vertical exhaust pipe 37 of the exhaust pipe 18, and the lower end of the upper vertical exhaust pipe 37 is inserted and fitted from above, and the diffuser 40 is mounted on the airframe side. Since the front exhaust pipe 34 including the upper vertical exhaust pipe 37 is attached to the frame 60 in a fixed state, the diffuser 40 can vibrate with respect to the diffuser 40, so that the vibration of the front exhaust pipe 34 is transmitted to the rear exhaust pipe 35. Shut off.

  DESCRIPTION OF SYMBOLS 1 ... Airframe frame, 2 ... Traveling device, 3 ... Threshing device, 4 ... Mowing device, 5 ... Glen tank, 6 ... Control part, 15 ... Driver's seat, 16 ... Engine, 17 ... Exhaust device, 18 ... Exhaust pipe, 20 ... Muffler, 21 ... Exhaust port, 22 ... Stay, 23 ... Cylinder block, 25 ... Rear crawler foot, 30 ... Intake port, 31 ... Intake pipe, 33 ... Lateral exhaust pipe, 34 ... Front exhaust pipe, 35 ... Rear side Exhaust pipe 36 ... Start end side exhaust pipe 37 ... Upper vertical exhaust pipe 38 ... Lower vertical exhaust pipe 39 ... End side exhaust pipe 40 ... Diffuser 41 ... Kara 43 ... Swing sorting shelf 44 ... One Receiving guard, 45 ... second receiving fire, 46 ... threshing counter pulley, 47 ... output pulley, 48 ... belt, 49 ... tension pulley, 50 ... cover, 51 ... EX port, 52 ... exhaust turbine, 55 ... exhaust casing, 56 ... supercharging casing, 0 ... mounting frame, 63 ... air cleaner, 64 ... rear frame, 65 ... stay, 66 ... precleaner, 67 ... top AgeKoku cylinder, 68 ... stay, 70 ... Fan, 71 ... sun visor, 72 ... San visor frame.

Claims (5)

  At the rear of the engine (16), an exhaust pipe (18) extending in the front-rear direction through a muffler (20) supported by the fuselage frame (1) and an exhaust port (21) provided at the front of the engine (16). ), And an intermediate portion of the exhaust pipe (18) is supported by a stay (22) provided in the engine (16) body, and the stay (22) is rearwardly and upwardly from the cylinder block (23) of the engine (16). A combine that extends to the rear and supports a portion of the exhaust pipe (18) that is behind the base of the stay (22).   In the invention according to claim 1, the exhaust pipe (18) is divided into a front exhaust pipe (34) and a rear exhaust pipe (35) in the front-rear direction, and the front exhaust pipe (34) is divided into the engine (16). The rear exhaust pipe (35) is provided with the muffler (20) and is supported on the airframe side. The front exhaust pipe (34) and the rear exhaust pipe (35) Combine connected via a diffuser (40).   In the invention of claim 1, an intake pipe (31) for supplying combustion air to an intake port (30) of the engine (16) is disposed above the engine (16), and the exhaust pipe (18) A combine routed around the side of the intake pipe (31).   In the invention according to claim 1, claim 2, or claim 3, the exhaust pipe (18) extends from a rear end portion of a lateral exhaust pipe (33) in the front-rear direction constituting a part of the exhaust pipe (18). The muffler (18) extends to the exhaust pipe (18) at a position in front of the rear crawler foot (25) of the pair of front and rear crawler feet of the traveling device (2) that extends vertically and travels the aircraft. 20) Combine.   In the invention according to claim 1, claim 2, or claim 3, the exhaust pipe (18) is divided into a front exhaust pipe (34) and a rear exhaust pipe (35) in the front-rear direction, and the front exhaust pipe ( 34) is a front exhaust pipe start end side exhaust pipe (36) in the left-right direction connected to the exhaust port (21) of the engine (16), and a front-rear direction exhaust pipe provided integrally with the end of the start end exhaust pipe (36). It has a horizontal exhaust pipe (33) and an upper vertical exhaust pipe (37) connected to the end side in the exhaust direction of the horizontal exhaust pipe (33), and the rear exhaust pipe (35) has a vertical shape. A lower exhaust pipe (38), a terminal exhaust pipe (39) to which the muffler (20) connected to the lower vertical exhaust pipe (38) is attached, and a start end side of the lower vertical exhaust pipe (38). Combine with a diffuser (40) provided.

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