JP2008000022A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester so designed as to prevent the mutual interference of an unloading auger and an exhauster put to piping above a machine body and also to prevent the unloading auger from being stained by exhaust gas. <P>SOLUTION: The combine harvester 11 has the following construction. The downstream end 63 of a tail pipe 61 disposed downstream of the exhauster 41 is formed as as to discharge exhaust gas from one side, either right or left, on the top of a threshing section 15 upwardly toward the rearward of the other side. A guard member 81 functioning to prevent the mutual interference of the tail pipe 61 and the unloading auger 21 is formed to nearly inverse U-shape and extended from the flank of the unloading auger 21 side of the downstream end 63 of the tail pipe 61 upwardly toward the rearward of the threshing section 15 side. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an exhaust device from an engine of a combine. More specifically, the present invention relates to a technique for preventing interference between an exhaust device and an exhaust auger piped on the upper part of a combine body.

  Conventionally, an exhaust device for a combine is piped from the engine to the rear side of the fuselage through the lower part of the fuselage, and exhaust gas generated by the engine is discharged behind the fuselage. The exhaust device includes an exhaust silencer that reduces exhaust noise, a tail pipe that exhausts exhaust gas, and the like (see, for example, Patent Document 1).

  However, when an exhaust device such as an exhaust silencer or a tail pipe is piped at the lower part of the machine body, mud or the like wound during traveling tends to be applied to the exhaust device. When mud or the like is applied to the exhaust device, mud or the like may be caught and adhered to the exhaust silencer or the tail pipe, or mud or the like may enter the tail pipe. In particular, when the combine travels in a wet field, a large amount of mud or the like adheres to the exhaust device, and the intrusion of mud or the like into the exhaust device also increases, resulting in a decrease in the travel performance of the combine.

  For this reason, there is also a combine technology in which an exhaust device is piped on the upper part of the fuselage. As a combine equipped with such an exhaust device, for example, an exhaust silencer is provided in an engine room, and a tail pipe connected to the exhaust silencer. Is piped above the fuselage, and the rear part of the tail pipe is fixed to the upper part of the threshing part. There is also a combine in which an exhaust pipe from the engine is piped above the fuselage, an exhaust silencer connected to the exhaust pipe is fixed to the upper part of the threshing portion, and a tail pipe is connected to the exhaust silencer.

  According to the combine in which the exhaust device is piped on the upper part of the fuselage as described above, it is difficult for mud or the like wound up during traveling to catch on the exhaust device, mud etc. Is prevented from entering. For this reason, it is possible to prevent deterioration of the traveling performance of the combine due to embedding of mud or the like in the exhaust device or infiltration of mud or the like.

On the other hand, there has been conventionally known a combine tank equipped with a grain tank for storing grain and a discharge auger for transferring the grain in the grain tank to a truck bed, etc. It is configured to be able to turn left and right, and the use position of the discharge auger is set in advance, and it automatically returns to the position of the auger rest after use. A combine with an auto-return function for mounting and fixing is also known.
JP 2005-261279 A

  However, in the case of a combine in which the exhaust device is piped on the upper part of the fuselage, a part of the exhaust device protrudes above the combine. In addition, it is necessary to set the tail pipe to a certain height so that the tail pipe is not covered with sawdust or crops. For this reason, if the discharge auger is carelessly raised and swung, the tail pipe and the discharge auger interfere with each other, and both may be deformed or damaged. In the case of a combine where the tail pipe is installed at the top of the fuselage, the exhaust auger can be used by turning the exhaust auger closer to the exhaust port of the tail pipe to the position where it hits the exhaust gas. There is also a problem that the surface of the discharge auger tends to become dirty.

  The present invention has been made in view of the above problems, and aims to provide a combine that prevents interference between the exhaust device and the exhaust auger piped on the upper part of the fuselage and prevents the exhaust auger from becoming dirty. To do.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

That is, in claim 1,
Glen tanks that store mowing, threshing, and sorting after selection,
A discharge auger disposed so as to be rotatable in a vertical direction and a horizontal direction, and discharging the soot from the Glen tank;
An exhaust system connected to an engine mounted on the airframe and having a rear end portion disposed between the threshing portion and the glen tank,
Forming the downstream end of the tail pipe arranged on the downstream side of the exhaust device so as to exhaust the exhaust gas from the upper left and right sides of the threshing portion to the other side obliquely upward and rearward,
A guard member for preventing interference between the tail pipe and the discharge auger is formed in a substantially inverted U shape, and obliquely upward and rearward on the threshing portion side from the side portion on the discharge auger side of the downstream end portion of the tail pipe. It is extended to.

In claim 2,
The extending direction of the guard member and the discharge direction of the exhaust gas from the downstream end of the tail pipe are substantially parallel.

  As effects of the present invention, the following effects can be obtained.

  According to claim 1, when the discharge auger is rotated to discharge the grain or to be stored after discharge, interference between the exhaust device piped on the upper part of the combiner body and the discharge auger is prevented. it can.

  According to the second aspect of the present invention, the exhaust gas can be prevented from being directly applied to the discharge auger, so that the soot contained in the exhaust gas is difficult to adhere to the discharge auger, and the surface of the discharge auger can be prevented from being contaminated. . In addition, deformation or alteration of the discharge auger due to high-temperature exhaust gas can be prevented.

  Next, embodiments of the present invention will be described with reference to the drawings.

  The combine 11 according to the present invention will be described with reference to the drawings. 1 is an overall side view of the combine 11, FIG. 2 is a front view of the combine 11, FIG. 3 is a plan view of the combine 11, FIG. 4 is a simplified side view of the exhaust device 41, FIG. 5 is a simplified front view of the exhaust device 41, 6 is a simplified plan view of the exhaust device 41, FIG. 7 is a simplified side view of a connecting portion between the longitudinal feed auger 22 and the lateral feed auger 23, and FIG. 8 is a view taken along the arrow P of the guard member 81 in FIG.

  First, the overall configuration of the combine 11 will be described. As shown in FIGS. 1 to 3, the combine 11 is provided with a machine body (chassis) 13 on a crawler traveling device 12 that supports left and right crawlers, and an engine 34 on the front right side of the machine body 13. Is installed. A transmission case 31 for shifting the driving force of the engine 34 and transmitting it to the crawler traveling device 12 is disposed in front of the airframe 13. The transmission case axle is provided on the transmission case 31. Yes. Further, a cutting part 14 is provided at the front of the machine 13, and a sorting unit 16 is provided on the left side of the traveling direction in the upper part of the machine 13, and a threshing unit including a handling cylinder, a feed chain 15 a, and the like above the sorting unit 16. 15 is provided. A seat 19 and a cabin 18 are provided at the right front part of the upper part of the airframe 13, and a Glen tank 17 is provided at the right rear part of the airframe 13. A discharge conveyor 26 is disposed in the front-rear direction at the bottom of the Glen tank 17, and a discharge auger 21 is erected at the rear of the Glen tank 17. The grains stored in the grain tank 17 are conveyed rearward by a discharge conveyor 26, and discharged to a truck or the like from a discharge port 24 at the tip of the horizontal feed auger 23 via a vertical feed auger 22 and a horizontal feed auger 23 of the discharge auger 21. Is done. A guard member 81 that prevents interference between the tail pipe 61 and the discharge auger 21 is provided above the machine body 13.

  As shown in FIG. 3, the engine 34 is mounted below the cabin 18 in front of the fuselage 13 of the combine 11, and the engine 34 is accommodated in an engine room 32. The engine room 32 includes an engine room cover (not shown) that covers the upper surface, front surface, and left and right side surfaces, and the rear surface includes an engine room rear frame 33. The engine room 32 is provided with an open portion (not shown) for taking in outside air for cooling on the right side, and an intake path in which an air cleaner, an intake silencer, and the like are arranged from the rear lower part of the cabin 18 to the engine 34. (Not shown) is formed.

  Next, the exhaust device 41 will be described. As shown in FIG. 4, the exhaust device 41 is connected to an exhaust manifold 36 of the engine 34, and exhausts exhaust gas after combustion, thereby reducing exhaust sound accompanying explosion. The exhaust device 41 includes an exhaust silencer 42, a tail pipe 61, and an outside air introduction portion 71.

  The exhaust silencer 42 will be described. The exhaust silencer 42 is connected to the exhaust manifold 36 of the engine 34 to reduce exhaust noise. As shown in FIG. 4, the exhaust silencer 42 is a cylindrical body having a substantially elliptical cross section, and a silencer outlet pipe 43, which is an exhaust gas outlet, is provided near one side. The exhaust silencer 42 is disposed in the engine room 32 and is provided above the engine 34 at a position where the exhaust air from the cooling fan 35 hits. Since the exhaust silencer 42 is provided at a position where the exhaust air from the cooling fan 35 hits, the exhaust silencer 42 can be cooled and dust can be prevented from accumulating. Further, as shown in FIG. 5, the exhaust silencer 42 is disposed with its longitudinal direction facing the left-right direction of the fuselage 13 and offset to the left side of the fuselage 13 with respect to the exhaust manifold 36, and the silencer outlet pipe 43. Are connected to the left side in the direction of travel of the airframe 13.

  Next, the tail pipe 61 will be described. The tail pipe 61 is connected to the downstream side of the exhaust silencer 42 and discharges exhaust gas from the engine 34. As shown in FIGS. 4 to 6, the overall shape of the tail pipe 61 extends from the upstream end 62, which is a portion connected to the silencer outlet pipe 43 of the exhaust silencer 42, toward the rear of the machine body 13, Next, it is bent toward the upper side of the fuselage 13 behind the penetration part of the engine room rear frame 33 and extends toward the left side of the fuselage 13, and then reaches between the grain tank 17 and the threshing part 15. By the way, the downstream end 63 of the tail pipe 61 is disposed in the vicinity of the front and rear of the machine 13 (the threshing part 15 or the Glen tank 17) in the horizontal direction toward the back of the machine body 13 and extending backward. The downstream end portion 63 bends at an angle β (FIG. 4) obliquely upward with respect to the horizontal plane in a side view, and has an angle α (see FIG. 6) obliquely left rearward (feed chain side) with respect to the front-rear direction in a plan view. ) It is bent. That is, the exhaust gas is piped so as to be exhausted from the downstream end 63 (exhaust port) to the upper left side of the machine body 13 and obliquely to the rear left side on the opposite side to the lateral feed auger 23.

  As shown in FIG. 4, the tail pipe 61 includes an outer tube 64 and an inner tube 65. The inner pipe 65 is connected to the silencer outlet pipe 43 of the exhaust silencer 42 and is a part through which exhaust gas passes, and the outer pipe 64 is a part that forms a heat insulating layer between the inner pipe 65 and the inner pipe 65. The inner tube 65 and the outer tube 64 are each composed of a metal straight tube and an elbow, and the inner tube 65 is inserted into the outer tube 64. The inner tube 65 inserted into the outer tube 64 is fixed by fixing the inner tube fixing member to the outer surface of the inner tube 65 and the inner surface of the outer tube 64 by welding means or the like, and between the inner tube 65 and the outer tube 64. A predetermined gap is secured and fixed. A gap portion between the inner tube 65 and the outer tube 64 serves as a heat insulating layer. The gap communicates from the upstream end 62 to the downstream end 63 of the tail pipe 61. In this embodiment, the tail pipe 61 is a double pipe composed of the outer pipe 64 and the inner pipe 65, but it may be a single pipe consisting of only the inner pipe 65, or a pipe is provided on the outer side. Or more than triple tubes.

  The shape of the downstream end 63 of the tail pipe 61 is such that the end of the inner pipe 65 is positioned upstream of the end of the outer pipe 64, and the outer pipe is located at the downstream end 63 of the tail pipe 61. A difference is provided between the end positions of 64 and the inner pipe 65. Further, the end portion of the outer pipe 64 is obliquely cut and protruded so that the upper side becomes longer, so that rainwater or the like does not easily enter the tail pipe 61. Since there is a difference between the end positions of the outer pipe 64 and the inner pipe 65 at the downstream end 63 of the tail pipe 61, when the engine 34 is operated and exhaust gas is discharged from the downstream end of the inner pipe 65, A negative pressure is generated between the rear end of the inner tube 65 and the outer tube 64 due to the flow of the exhaust gas, and air is sucked from between the front end of the outer tube 64 and the front portion of the inner tube 65, A downstream air flow is generated in the gap with the outer tube 64. When the air flows, the inside of the gap is ventilated, the temperature rise of the air inside the gap is suppressed low, and the heat insulating effect between the inner pipe 65 and the outer pipe 64 is increased. For this reason, the rise in the surface temperature of the outer tube 64 can be suppressed to a low level, and even if a harness or the like is installed close to the tail pipe 61, the thermal influence on the harness or the like can be prevented. Further, it is possible to make it difficult for rainwater or the like to enter the tail pipe 61.

  The shape at the upstream end 62 of the tail pipe 61 on the engine room 32 side is such that the end of the inner pipe 65 protrudes upstream of the end of the outer pipe 64, and the upstream end of the tail pipe 61. In the portion 62, a difference is provided between the end positions of the outer tube 64 and the inner tube 65. Since the gap between the inner pipe 65 and the outer pipe 64 communicates with the outside air at the upstream end 62 of the tail pipe 61, rainwater or the like has entered from the downstream end 63 of the tail pipe 61. Even in this case, water is discharged from the hole at the upstream end 62. Therefore, it is possible to prevent rainwater or the like from entering the exhaust silencer 42 or the engine 34 through the gap between the inner pipe 65 and the outer pipe 64.

  Here, as shown in FIG. 3 and FIG. 6, the tail pipe 61 has an angle α (hereinafter referred to as “discharge”) above the handling chamber cover of the threshing unit 15 near the center of the machine and to the left rear with respect to the direction of machine movement. The downstream end 63 of the tail pipe 61 is located near the center of the machine. That is, the tail pipe 61 is discharged in the discharge direction α from the downstream end 63 near the center of the machine.

  Accordingly, in order to discharge from the downstream end 63 near the center of the machine, as shown in FIG. 3, the dimension A up to the peripheral edge of the machine (here, the left side edge) can be made longer and discharged in the discharge direction α. Therefore, the exhaust gas can be discharged far from the operator, the influence of the exhaust gas on the operator can be reduced, and the influence of the exhaust gas on the discharge auger and the glen tank located on the right side of the machine can be reduced. The angle α in the discharge direction to the left side of the machine is preferably 30 degrees or less.

  Next, the outside air introduction part 71 will be described. The outside air introduction unit 71 introduces outside air into the inner pipe 65 of the tail pipe 61 and reduces the temperature of the exhaust gas by outside air. A silencer outlet pipe 43 of the exhaust silencer 42 is connected to the upstream end 62 of the tail pipe 61, and an outside air introduction portion 71 is formed at a connection portion between the exhaust silencer 42 and the tail pipe 61. When the exhaust gas passes through the inner pipe 65 when the engine 34 is operating, a negative pressure is generated in the outside air introduction part 71 due to the flow of the exhaust gas, and the outside air is sucked into the inner pipe 65 from the opening of the outside air introduction part 71.

  As shown in FIG. 6, the outside air introduction portion 71 is provided in the engine room 32 close to the exhaust silencer 42 and is provided at a position where exhaust air from the cooling fan 35 is hit. Since the exhaust air from the cooling fan 35 always hits the outside air introduction unit 71, it is possible to introduce low-temperature air from the outside air introduction unit 71 and to prevent dust from collecting in the outside air introduction unit 71.

  As shown in FIG. 6, the direction in which the tail pipe 61 and the silencer outlet pipe 43 are connected is the front-rear direction of the body 13. By inserting the silencer outlet pipe 43 in a direction along the vibration direction of the engine 34, the vibration of the silencer outlet pipe 43 due to the vibration of the engine 34 matches the insertion direction, so that it contacts the inner pipe 65 of the tail pipe 61. It becomes difficult. In order to prevent interference between the silencer outlet pipe 43 and the tail pipe 61, the insertion direction of the silencer outlet pipe 43 is preferably a direction along a direction in which the vibration of the engine 34 is large.

  Further, since the outside air introduction part 71 is configured such that the silencer outlet pipe 43 provided in the exhaust silencer 42 is inserted into the tail pipe 61, and a gap is secured between the silencer outlet pipe 43 and the tail pipe 61. A flange for connecting the exhaust silencer 42 and the tail pipe 61 becomes unnecessary. Since the mass of the exhaust silencer 42 that is a vibrating body can be reduced by eliminating the need for a flange, and the vibration of the exhaust silencer 42 can be reduced, noise due to vibration can be reduced.

  Next, support of the exhaust device 41 will be described. As shown in FIGS. 4 to 6, the tail pipe 61 is supported by the threshing portion 15 via support members 82 and 83. As described above, when the exhaust device 41 is piped and supported above the fuselage 13, soot and the like are hardly accumulated in the exhaust device 41. Moreover, in the support part in the threshing part 15 of the tail pipe 61, the space | interval of the tail pipe 61 and the threshing part 15 is ensured enough, and even if a harness, an oiling hose, etc. are arrange | positioned under the tail pipe 61, it is due to heat. I try to prevent the impact.

  Next, the discharge auger 21 will be described. As shown in FIG. 1, the discharge auger 21 has a longitudinal feed auger 22 and a lateral feed auger 23. As shown in FIG. 7, the base side of the lateral feed auger 23 is connected to the upper part of the vertical feed auger 22 so as to be rotatable in the vertical direction. A bracket 55 projects from the side of the vertical feed auger 22, and a bracket 56 projects from the side of the lateral feed auger 23. One end of a cylinder 51 as a vertical driving means is rotatably attached to the bracket 55, and the other end of the cylinder 51 is rotatably attached to the bracket 56. Due to the expansion and contraction of the cylinder 51, the discharge auger 21 is lifted up and down. Further, the transverse feed auger 23 is provided with a rotary potentiometer 53 as a vertical angle detection means, and the rotary potentiometer 53 detects the vertical angle of the discharge auger 21.

  As shown in FIG. 7, a spur gear 57 is fitted and fixed to the middle part of the longitudinal feed auger 22. An actuator 52 serving as a horizontal direction driving unit is provided on the machine body 13 side, and a spur gear 58 is provided on the rotation shaft of the actuator 52. The spur gear 57 and the spur gear 58 are engaged with each other, and when the actuator 52 is operated, the longitudinal feed auger 22 and the lateral feed auger 23 are integrally rotated in the horizontal direction. A rotary potentiometer 54 as a horizontal angle detecting means is provided coaxially with the spur gear 58. The horizontal angle of the discharge auger 21 is detected by the rotary potentiometer 54. The vertical angle detecting means and the horizontal angle detecting means can use rotational angle detecting means such as a resolver and a rotary encoder in addition to a rotary potentiometer.

  Next, the guard member 81 will be described. As shown in FIGS. 1 to 6 and 8, a guard member 81 is provided above the fuselage 13 of the combine 11. The guard member 81 is a member that prevents interference between the tail pipe 61 and the discharge auger 21 without the discharge auger 21 coming into contact with the tail pipe 61 when the discharge auger 21 approaches the tail pipe 61. As for the mounting position and shape of the guard member 81, the vertical and horizontal angles of the discharge auger 21 corresponding to the position where there is a possibility of interference with the tail pipe 61 are obtained. Before entering, the lateral feed auger 23 is in a position and a shape where it abuts against the guard member 81 before the tail pipe 61.

  Specifically, the guard member 81 is configured by bending a metal pipe, a rod-like member, or a strip plate-like member into a substantially inverted U shape. As shown in FIG. 4, one end of the pipe is at a position below the rear end of the tail pipe 61, and as shown in FIG. 6, at a position away from the rear end of the tail pipe 61 by a predetermined length so that exhaust is not directly applied. The frame is fixed to a frame between the grain tank 17 and the threshing portion 15 and extends vertically from the frame toward the upper side of the machine body 13. Then, as shown in FIG. 5, the lateral guard member 81 a is bent from a position substantially the same height as the rear end of the tail pipe 61 and bent toward the left rear side of the machine body 13. Forming. Next, when the rear part of the horizontal guard member 81a reaches substantially the same height as the upper end of the Glen tank 17, it bends downward and extends in the vertical direction to form a vertical guard member 81b. If the vertical guard member 81b is extended downward as it is, it hits the threshing portion 15. Therefore, the vertical guard member 81b is bent into a substantially crank shape in a front view and is extended downward as a substantially straight shape in a plan view. The lower end is fixed to the provided mounting base.

  Thus, the guard member 81 is disposed on the right rear side of the exhaust device 41, and the lateral guard member 81a is disposed at a position higher than the upper end of the downstream end portion 63 of the tail pipe 61. Here, as shown in FIGS. 4 and 8, the tail pipe 61 has a shape that is piped so as to be discharged upward at an angle β (hereinafter referred to as a discharge direction β) with respect to the horizontal direction of the machine body. The guard member 81 is disposed in parallel with the discharge direction β of the tail pipe 61. Specifically, the longitudinal axis direction of the lateral guard member 81a of the guard member 81 and the discharge direction β of the tail pipe 61 are arranged in parallel. Further, the dimension B is separated from the downstream end 63 of the tail pipe 61 to the guard member 81 (vertical guard member 81b) in the discharge direction β.

  Therefore, as shown in FIG. 8, the exhaust gas is discharged from the downstream end 63 of the tail pipe 61 in the discharge direction β, but this exhaust gas does not directly reach the guard member 81. On the other hand, when the lateral auger 23 of the discharge auger 21 is rotated, the lateral auger 23 is brought closest to the guard member 81, that is, the lateral auger 23 is moved to the auger storage position (the solid line shown in FIG. 8). ) To the upper left along the horizontal guard member 81a, the horizontal feed auger 23 moves in parallel with the discharge direction β, and even if it is the closest contact position between the horizontal guard member 81a and the vertical guard member 81b. The lateral feed auger 23 is at a position separated by a dimension B or more. (The two-dot difference line shown in FIG. 8). Therefore, even if the discharge auger is erroneously operated to be closest to the guard member 81, the exhaust auger is not directly applied to the discharge auger and is hardly affected by the heat.

  Moreover, the guard member 81 is arrange | positioned in parallel with the discharge direction (alpha) of the tail pipe 61, as shown in FIG. That is, as described above, the guard member 81 has a shape that is substantially one letter in plan view, and the guard member 81 is disposed in parallel with the discharge direction α of the tail pipe 61 in plan view. For this reason, the guard member 81 can be arrange | positioned compactly on the body 13, and the space on the body 13 can be used effectively.

  As described above, the combine 11 according to the present embodiment is arranged so that the grain tank 17 that stores the harvested, threshed, and sorted straws is arranged so as to be rotatable in the vertical direction and the horizontal direction. A combine 11 having a discharge auger 21 for discharging and an exhaust device 41 connected to an engine 34 mounted on the machine body 13 and having a rear end portion disposed between the threshing portion 15 and the glen tank 17. In addition, the downstream end 63 of the tail pipe 61 disposed on the downstream side of the exhaust device 41 is formed so as to discharge exhaust gas obliquely upward and rearward from the left and right sides of the threshing portion 15 to the other side. A guard member 81 that prevents interference between the tail pipe 61 and the discharge auger 21 is formed in a substantially inverted U shape, and from the side of the downstream end 63 of the tail pipe 61 on the discharge auger 21 side. , Prolapse It is obtained by extending obliquely upward and rearward parts 15 side. With such a configuration, the exhaust device 41 and the exhaust auger 21 piped on the upper part of the body 13 of the combine 11 when the discharge auger 21 is rotated to discharge the grain or to store it after the discharge. Can be prevented.

  The extending direction of the guard member 81 and the discharge direction of the exhaust gas from the downstream end 63 of the tail pipe 61 are configured to be substantially parallel. By adopting such a configuration, it is possible to prevent the exhaust gas from being directly applied to the discharge auger 21, so that the soot contained in the exhaust gas does not easily adhere to the discharge auger 21, and the surface of the discharge auger 21 becomes dirty. Can be prevented. In addition, it is possible to prevent the discharge auger 21 from being deformed or altered due to high-temperature exhaust gas.

The whole side view of the combine 11. FIG. The front view of the combine 11. FIG. The top view of the combine 11. FIG. FIG. 6 is a simplified side view of the exhaust device 41. The front simplified view of the exhaust device 41. FIG. FIG. 3 is a simplified plan view of the exhaust device 41. The side surface simplification figure of the connection part of the vertical feed auger 22 and the horizontal feed auger 23. FIG. FIG. 4 is a P arrow view of the guard member 81 in FIG. 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Combine 13 Airframe 15 Threshing part 17 Glen tank 21 Discharge auger 34 Engine 41 Exhaust device 61 Tail pipe 63 Downstream end part 81 Guard member

Claims (2)

Glen tanks that store mowing, threshing, and sorting after selection,
A discharge auger disposed so as to be rotatable in a vertical direction and a horizontal direction, and discharging the soot from the Glen tank;
An exhaust system connected to an engine mounted on the airframe and having a rear end portion disposed between the threshing portion and the glen tank,
Forming the downstream end of the tail pipe arranged on the downstream side of the exhaust device so as to exhaust the exhaust gas from the upper left and right sides of the threshing portion to the other side obliquely upward and rearward,
A guard member for preventing interference between the tail pipe and the discharge auger is formed in a substantially inverted U shape, and obliquely upward and rearward on the threshing portion side from the side portion on the discharge auger side of the downstream end portion of the tail pipe. Combine that is characterized by extending to. The combine according to claim 1, wherein the extending direction of the guard member and the exhaust gas discharge direction from the downstream end of the tail pipe are substantially parallel to each other.

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