KR101419444B1 - Combine - Google Patents

Abstract

And an exhaust device capable of efficiently exhausting the exhaust gas in a direction away from the base. A grain tank 17 for storing rice after cutting, threshing and sorting and a grain tank 17 having one end connected to the engine 34 mounted on the base and the other end extending between the threshing portion 15 and the grain tank 17 A combine having an exhaust device (41) constituted by an exhaust silencer (42), a tail pipe (61) and the like, wherein the exhaust manifold (41) The tail pipe 61 connected to the manifold 36 is supported by the support members 82 and 83 provided on the threshing portion 15. [

Description

Combine {COMBINE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine, and more particularly to a combine technique in which an exhaust device is piped to an upper part of a machine.

BACKGROUND ART [0002] Conventionally, an exhaust device of a combine is piped from the engine to the rear side of the gas through the lower portion of the gas, and exhaust gas generated from the engine is exhausted from the rear of the gas. The exhaust device comprises an exhaust silencer for reducing exhaust noise and a tail pipe for exhausting exhaust gas (see, for example, Patent Document 1).

However, if the exhaust system such as the exhaust silencer and the tail pipe is piped to the lower portion of the gas, the mud wound up during traveling is likely to be caught in the exhaust system. When mud or the like is caught in the exhaust system, mud or the like may be attracted to the exhaust silencer or the tail pipe to adhere and solidify, or mud may enter the tail pipe. Particularly, when the combine travels in a wet place, a large amount of mud or the like adheres to the exhaust device, and the infiltration of mud into the exhaust device also increases, so that the driving performance of the combine deteriorates.

As a combine having such an exhaust device, for example, an exhaust silencer is provided in the engine room, and a tail pipe connected to the exhaust silencer is provided in the upper part of the gas- And the rear portion of the tail pipe is fixed to the upper portion of the threshing portion (for example, Patent Document 2). There is also a combine in which an exhaust pipe from an engine is piped to the upper side of the gas, an exhaust silencer connected to the exhaust pipe is fixed to the upper portion of the threshing portion, and a tail pipe is connected to the exhaust silencer.

As described above, according to the combine having the exhaust device piped to the upper part of the base, the mud wound up during running becomes difficult to be caught by the exhaust device, so that mud or the like is drawn into the exhaust device or mud is prevented from entering the exhaust device . Therefore, it is possible to prevent the driving performance of the combine from being deteriorated due to attraction of mud or the like of the exhaust system or intrusion of mud or the like.

Patent Document 1: Japanese Patent Application Laid-Open No. 2005-261279

Patent Document 2: Japanese Utility Model Publication No. 61-26130

[Problems to be solved by the invention]

However, in the case of a combine in which the exhaust device is piped to the upper part of the gas, a part of the exhaust device protrudes to the upper part of the combine. Further, it is necessary to heighten the height of the tail pipe to some extent in order to prevent the tail pipes from getting stuck or crops. Therefore, if the discharge auger is inadvertently raised and turned, there is a fear that both the tail pipe and the discharge auger interfere with each other to be deformed or damaged. In the case of a combine having a tail pipe connected to the upper part of the gas pipe, the exhaust auger approaches the exhaust port of the tail pipe and can be used by turning to the position where it touches the exhaust gas. Soot contained in the exhaust gas tends to adhere to the exhaust auger There is a problem that the surface of the discharge auger tends to become dirty.

The present invention provides a combine equipped with an exhaust device capable of efficiently discharging exhaust gas in a direction away from a gas, taking into consideration such a problem.

[MEANS FOR SOLVING THE PROBLEMS]

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

That is, according to the present invention, there is provided an exhaust gas purifying apparatus comprising: a graining receptacle for storing rice after cutting, threshing, and sorting; an exhaust silencer connected to an engine having one end mounted on the base and the other end extending between the threshing portion and the graining receptacle; And a tail pipe connected to an exhaust manifold of the engine on the upstream side of the exhaust device is supported by a support provided on the threshing portion.

Further, in the present invention, it is preferable that the exhaust system further comprises: an exhaust silencer connected to the engine in an engine room provided in the front of the engine; and an exhaust silencer connected to a downstream side of the exhaust silencer, And an outside air introducing portion provided in the tail pipe in the engine room for introducing the outside air in the engine room into the tail pipe.

Further, in the present invention, the discharge direction of the tail pipe from the discharge port is configured such that, when viewed from the plane, the tail pipe is discharged toward the rear outer side edge of the threshing portion at the front, rear, and central portions.

In addition, in the present invention, there is provided a rice bran in which a rice bran, rice bran, rice bran, rice bran, rice bran, rice bran, rice bran, And a discharge pipe connected to the engine, and the other end of which is formed by an exhaust silencer and a tail pipe extending between the threshing portion and the curved storage portion, wherein the discharge port of the tail pipe is disposed above the threshing portion, Is disposed behind the gas diagonally opposite to the discharge auger at the time of storage.

Further, in the present invention, the outlet of the tail pipe is disposed below the lateral auger of the discharge auger at the time of storage in the substantially central portion in the front-rear direction of the gas.

Further, in the present invention, the guard member is disposed higher than the downstream side end portion of the tail pipe and parallel to the discharge direction of the tail pipe when viewed from the plane.

[Effects of the Invention]

As the effect of the present invention, the following effects are exhibited.

In the present invention, the surface temperature of the tail pipe is lowered by introducing the exhaust air discharged from the radiator. In addition, dust deposition on the muffler pipe is prevented. In addition, the durability of the tail pipe is improved because it is supported by the threshing portion with little vibration. Further, since the durability of the tail pipe is improved, it becomes possible to use a lightweight material.

Further, in the present invention, mud or the like wound up during traveling is hardly caught by the exhaust device, so that mud or the like is prevented from being attracted to the exhaust device, and mud or the like is prevented from entering. Therefore, it is possible to prevent deterioration of the traveling performance of the combine due to attraction of mud or the like of the exhaust system or invasion of mud or the like.

Further, since the exhaust device is piped above the gas, the exhaust gas discharged from the tail pipe is not sprayed to the ground below the gas, and dust or the like can be prevented from being wound around the combine by the exhaust gas.

The outside air introduction portion is provided in the tailpipe in the engine room, and the outside air in the engine room is introduced into the tail pipe. Since the outside air in the engine room is removed from the stubble, the cover portion need not be provided near the opening portion of the outside air introduction portion . Therefore, the structure of the outside air introduction portion can be simplified and the structure of the exhaust device can be simplified.

Further, in the present invention, the exhaust gas can be discharged in a direction away from the driver's seat or the air inlet. Further, it becomes possible to take a sufficient distance to diffuse the exhaust gas after it is discharged from the tail pipe.

Further, in the present invention, since the exhaust is discharged upward, clogging in the tail pipe does not occur. In addition, dust is prevented from being lifted from the ground by exhaust. In addition, since the structure of the lower portion of the traveling gas is simplified, traveling in a wet condition where the gas sinks deeply becomes possible. Further, the exhaust auger is not soiled with soot or the like, and the exhaust does not return to the intake side. Further, the exhaust does not directly touch the operator.

In addition, in the present invention, the tip end of the tail pipe does not touch at the time of storage in a garage. Further, the exhaust gas does not come into contact with the ceiling, the wall or the like at the time of containment, so that it does not become dirty. In addition, even if the non-film-use sheet is put on the entire base body at the time of storage or after the end of the work, the non-film-use sheet does not contact the tail pipe, and the tail-

Further, in the present invention, the guard member can prevent interference between the tail pipe and the discharge auger.

Figure 1 is an overall side view of the combine.

2 is a front view of the combine.

3 is a plan view of the combine.

4 is a side schematic view of the exhaust system.

5 is a schematic front view of the exhaust system.

6 is a schematic plan view of the exhaust system.

7 is a side schematic view of a connecting portion of the vertical conveying auger and the lateral conveying auger.

Fig. 8 is a view of the guard plate of Fig. 3 taken along an arrow P; Fig.

9 is a side view of the guard plate.

10 is a plan view of the guard plate.

11 is a sectional view of the guard plate.

Fig. 12 (a) is a plan view of a conventional outside air introduction portion, and Fig. 12 (b) is a plan view of an outside air introduction portion when the upstream side end portion is opened obliquely.

13 is a perspective view of the outside air introduction portion when the upstream side end portion is cut in a stepwise manner.

14 (a) is a side view of the outside air introducing portion when the upstream end is opened in a V-shape, and FIG. 14 (b) is a front view.

Fig. 15 is a perspective view of an exhaust apparatus or the like viewed from the direction P in Fig.

16 is an overall side view of the combine according to the second embodiment.

17 is a front view of the combine according to the second embodiment.

18 is a plan view of the combine according to the second embodiment.

19 is a side schematic view of the exhaust system according to the second embodiment.

20 is a schematic front view of the exhaust system according to the second embodiment.

21 is a schematic plan view of the exhaust system according to the second embodiment.

[Description of Symbols]

11 ... combine

13 ... gas

15 ... Threshing section

17 ... Grain tank

21 ... Discharge auger

34 ... engine

41 ... exhaust

61 ... Tail pipe

63 ... The downstream-

90 ... Guard plate

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

Example 1

The combine 11 according to the first embodiment of the present invention will be described with reference to the drawings. Fig. 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 side schematic view of the exhaust device 41, 6 is a schematic plan view of the exhaust device 41, Fig. 7 is a side schematic view of the connecting portion between the vertical conveying auger 22 and the lateral conveying auger 23, Fig. 8 is a side elevational view, 9 is a side view of the guard plate 90. Figure 10 is a plan view of the guard plate 90. Figure 11 is a sectional view of the guard plate 90. Figure 12 (a) Fig. 13 is a plan view of the outside air introducing portion 71 when the upstream side end portion 62 is cut in a stepwise manner, and Fig. 13 is a plan view of the outside air introducing portion 71 when the upstream side end portion 62 is obliquely opened. 14 (a) is a side view of the outside air introducing portion when the upstream side end portion 62 is opened in a V shape, Fig. 15 (b) is a front view, and Fig. 15 is a perspective view of the exhaust device (41) It is a perspective view.

First, the overall configuration of the combine 11 according to the present embodiment will be described. As shown in Figs. 1 to 3, the combine 11 is provided with a chassis 13 on a crawler traveling device 12 including right and left crawlers, 34 are mounted. A transmission case 31 for transmitting the driving force of the engine 34 to the crawler traveling device 12 is disposed in front of the base 13 and a transmission case 31 for transmitting the driving force of the engine 34 to the crawler traveling device 12, . A sorting section 16 is provided on the front side of the base 13 and on the left side in the traveling direction on the upper side of the base 13 and the upper side of the sorting section 16, A threshing section 15 having a feed chain 15a or the like is provided. A seat 19 and a cabin 18 are provided at the right front portion of the upper portion of the base body 13 and a grain tank 17 serving as a curved receiving portion is provided at the right rear portion of the base body 13. A discharge conveyor 26 is arranged in the front and rear direction on the bottom of the grain tank 17 and a discharge auger 21 is provided on the rear of the grain tank 17. The curled grains stored in the grain tank 17 are conveyed backward by the discharge conveyor 26 and conveyed to the front end of the lateral conveying auger 23 via the vertical conveying auger 22 and the lateral conveying auger 23 of the discharge auger 21. [ And is discharged from a discharge port 24 of a truck or the like. A guard member 81 for preventing interference between the tail pipe 61 and the discharge auger 21 is provided above the base 13. A guard plate 90 is attached to the transverse conveying auger 23 of the discharge auger 21 at a position approaching the downstream side end portion 63 of the tail pipe 61.

An engine 34 is mounted below the cabin 18 in front of the base body 13 of the combine 11 and the engine 34 is accommodated in the engine room 32 as shown in Fig. The engine room 32 is constituted by an engine room cover (not shown) covering the upper surface, the front surface, the left and right side surfaces, and the rear surface is constituted by the engine room rear frame 33. An opening portion (not shown) for blowing outside air for cooling is provided on the right side of the engine room 32 and air is blown from the rear lower portion of the cabin 18 to the engine 34 An intake path (not shown) in which a cleaner, an intake silencer, and the like are disposed is formed.

Next, the exhaust device 41 will be described. As shown in Fig. 4, the exhaust device 41 is connected to the exhaust manifold 36 of the engine 34 to exhaust exhaust gas after combustion and to reduce exhaust noise accompanying combustion. The exhaust device 41 has an exhaust silencer 42, a tail pipe 61, and an outside air introduction portion 71.

The exhaust silencer 42 is connected to the exhaust manifold 36 of the engine 34 to reduce the exhaust sound. As shown in Fig. 4, the exhaust silencer 42 is a cylinder having a substantially elliptical cross-sectional shape, 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 at a position where the exhaust wind of the cooling fan 35 reaches above the engine 34. [ Since the exhaust silencer 42 is provided at a position where the exhaust wind of the cooling fan 35 is exposed, it is possible to prevent the exhaust silencer 42 from being cooled and accumulating dust. 5, the exhaust silencer 42 is disposed so as to be offset in the leftward direction of the base body 13 with respect to the exhaust manifold 36 in the longitudinal direction toward the left and right direction of the base body 13, The silencer outlet pipe 43 is connected to the left side in the traveling direction of the base 13.

Next, the tail pipe 61 will be described. The tail pipe 61 is connected to the downstream side of the exhaust silencer 42 to exhaust the exhaust gas from the engine 34. [ 4 to 6, the entire shape of the tail pipe 61 extends from the upstream side end portion 62, which is a portion connected to the silencer outlet pipe 43 of the exhaust silencer 42, to the rear side of the gas 13 And then bent toward the upper side of the base body 13 from the rear of the penetration portion of the engine room rear frame 33 and extended toward the left side of the base body 13 and then to the grain tank 17 and the threshing portion 15) of the main body (the threshing portion 15 or the grain tank 17) is bent in the horizontal direction toward the rear of the base 13 and reaches the rear of the main body 13 Is disposed at the downstream side end (63). The downstream side end portion 63 is bent at an angle? (FIG. 4) obliquely upwardly with respect to the horizontal plane when viewed from the side, and is inclined obliquely to the left rear side (feed chain side) 6) It is bent. That is, the exhaust gas is discharged from the downstream side end portion 63 (exhaust port) to the upper portion of the base body 13 to the upper left side diagonally opposite to the transverse transfer augment 23 side.

15, the tail pipe 61 is provided such that the upper end of the discharge port of the downstream side end portion 63 at the highest position is located lower than the lower end of the discharge auger 21. With this configuration, even when the non-filming sheet 100 is put on the entire body immediately after the end of the operation (engine stop), the non-filming sheet 100 does not contact the tail pipe 61, I never do that.

As shown in Fig. 4, the tail pipe 61 is composed of an outer tube 64 and an inner tube 65. As shown in Fig. The inner pipe 65 is connected to the silencer outlet pipe 43 of the exhaust silencer 42 to pass the exhaust gas and the outer pipe 64 is a portion forming a heat insulating layer between the inner pipe 65 and the inner pipe 65. The inner pipe 65 and the outer pipe 64 are each made of a metal straight pipe and an elbow, and an inner pipe is inserted into the outer pipe 64. The inner pipe 65 inserted into the outer pipe 64 is fixed by welding or the like to the inner surface of the inner pipe 65 and the inner surface of the outer pipe 64 and the inner pipe 65 and the outer pipe 64 A predetermined gap is secured and fixed. The gap between the inner pipe 65 and the outer pipe 64 becomes a heat insulating layer. The gap is communicated from the upstream side end portion 62 of the tail pipe 61 to the downstream side end portion 63. In the present embodiment, the tail pipe 61 is a double pipe composed of the outer pipe 64 and the inner pipe 65. However, the tail pipe 61 may be a single pipe composed of only the inner pipe 65, Or more.

The shape of the downstream side end portion 63 of the tail pipe 61 is such that the end portion of the inner pipe 65 is located on the upstream side of the end portion of the outer pipe 64, 64) and the inner pipe (65). In addition, the end of the outer tube 64 is obliquely cut and the upper side is protruded so as to prevent rainwater or the like from entering the tail pipe 61. The engine 34 is operated and the exhaust gas is discharged from the downstream end of the inner pipe 65 because the difference in the end positions of the outer pipe 64 and the inner pipe 65 at the downstream side end portion 63 of the tail pipe 61 A negative pressure is generated between the rear end of the inner pipe 65 and the outer pipe 64 by the air flow of the exhaust gas to suck air from between the front end of the outer pipe 64 and the front portion of the inner pipe 65, A flow of air in the downstream direction is generated in the gap between the outer tube 64 and the outer tube 64. When a flow of air is generated, 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 enhanced. Therefore, the rise of the surface temperature of the outer tube 64 can be suppressed to a low level, so that even if a harness or the like is provided to approach the tail pipe 61, it is possible to prevent a heat effect on the harness or the like. In addition, it is possible to make rainwater or the like difficult to enter into the tail pipe 61.

The shape of the upstream side end portion 62 of the tail pipe 61 on the engine room 32 side is such that the end portion of the internal pipe 65 protrudes on the upstream side of the end portion of the external pipe 64, The end portion 62 has a difference in end position between the outer pipe 64 and the inner pipe 65. Since the clearance between the inner pipe 65 and the outer pipe 64 communicates with the outside air at the upstream side end portion 62 of the tail pipe 61, the clearance between the downstream side end portion 63 of the tail pipe 61 The water is discharged from the upstream-side end portion 62 even when the air-fuel mixture enters the combustion chamber. It is possible to prevent rainwater or the like from entering the inside of 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 Figs. 3 and 6, the tail pipe 61 is located above the feed chamber cover of the threshing section 15 in the vicinity of the center of the apparatus, The downstream side end portion 63 of the tail pipe 61 is positioned near the center of the apparatus together with the shape of being pushed out to the rear by an angle? (Hereinafter referred to as the discharge direction?). That is, the tail pipe 61 is discharged in the discharge direction? From the downstream side end portion 63 in the vicinity of the center of the apparatus. Further, as shown in Fig. 5, the shape is such that it is discharged to an angle? (Hereinafter referred to as discharge direction?) Which is higher than the height when the paper cover is rotated upward as much as possible.

Therefore, as shown in Fig. 3, the dimension A to the edge of the main body (here, near the left rear corner portion of the main body) is extended and the discharge direction? It is possible to exhaust the exhaust gas to a position far from the operator so that it is possible to reduce the influence of the exhaust gas to the operator (specifically, to exhaust the exhaust gas or to attach the soot) It is possible to reduce the influence of the exhaust gas to the discharged exhaust or grain tank. In addition, since the exhaust gas is discharged above the height when the paper cover is opened to the maximum extent, the exhaust can be prevented from reaching the paper cover so that contamination can be prevented. The angle? Of the discharge direction to the left side of the apparatus is preferably 30 degrees or less.

Further, the outlet of the tail pipe is provided at a position lower than the discharge auger. With this configuration, even when the apparatus is covered with the non-film-forming cover as shown in Fig. 15, the cover does not come into direct contact with the tail pipe, thereby preventing the cover from being damaged.

Next, the outside air introduction portion 71 will be described. The outside air introduction portion 71 introduces the outside air into the inside pipe 65 of the tail pipe 61 to lower the temperature of the exhaust gas by outside air. The silencer outlet pipe 43 of the exhaust silencer 42 is connected to the upstream side end portion 62 of the tail pipe 61 and the outside air intake portion 71 is connected to the connection portion between the exhaust silencer 42 and the tail pipe 61 . When the exhaust gas passes through the inner pipe 65 at the time of operation of the engine 34, a negative pressure is generated in the outside air introducing portion 71 by the air flow of the exhaust gas and the outside air is sucked from the opening portion of the outside air introducing portion 71 to the inside pipe 65 (Suction).

The upstream side end portion 62 of the tail pipe 61 may be opened obliquely as shown in Fig. 12 (b). 12 (a), the cross section of the upstream side end portion 62 is parallel to the exhaust air discharged from the radiator (perpendicular to the axis of the outlet pipe 43 and the tail pipe 61) The upstream side end portion 62 is opened obliquely with respect to the exhaust air exhausted from the radiator, as shown in Fig. 12 (b) Can be efficiently blown into the tail pipe.

13, the upstream side end portion 62 is cut out in a stepped manner, and the overlapping portion of the upstream side end portion 62 and the outlet pipe 43 is formed into a semicylindrical shape and the opening side is directed toward the radiator fan side So that more cooling air can be introduced into the tail pipe 61.

It is also possible to configure it as shown in Fig. That is, the overlapping portion of the upstream side end portion 62 and the outlet pipe 43 may be opened in a substantially V-shape toward the radiator fan side. With this configuration, it becomes possible to introduce more cooling air into the tail pipe 61.

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 the exhaust wind of the cooling fan 35 is in contact. The exhaust air of the cooling fan 35 always touches the outside air introduction portion 71 so that the low temperature air can be introduced from the outside air introduction portion 71 and dust can be prevented from accumulating on the outside air introduction portion 71 .

6, the direction in which the tail pipe 61 and the silencer outlet pipe 43 are connected is the forward and backward direction of the base 13. Since the vibration of the silencer outlet pipe 43 by the vibration of the engine 34 coincides with the inserting direction by inserting the silencer outlet pipe 43 in the direction of the vibration direction of the engine 34, It becomes difficult to make contact with the contact surface 65. In order to prevent interference between the silencer outlet pipe 43 and the tail pipe 61, it is preferable that the inserting direction of the silencer outlet pipe 43 is a direction in which the vibration of the engine 34 is large.

The outside air introduction portion 71 is formed in such a manner that the silencer outlet pipe 43 provided in the exhaust silencer 42 is inserted into the tail pipe 61 and the clearance between the silencer outlet pipe 43 and the tail pipe 61 is secured The flange connecting the exhaust silencer 42 and the tail pipe 61 becomes unnecessary. Since the flange is unnecessary, the mass of the exhaust silencer 42 can be reduced, and the vibration of the exhaust silencer 42 can be reduced, so that noise due to vibration can be reduced.

Next, the support of the exhaust device 41 will be described. 4 to 6, the tail pipe 61 is supported by the threshing portion 15 via the support members 82, As described above, if the exhaust device 41 is piped and supported above the base 13, it becomes difficult for the exhaust device 41 to accumulate dust or the like. The gap between the tail pipe 61 and the threshing portion 15 is sufficiently ensured in the support portion of the tail pipe 61 in the hoisting portion 15 so that the harness, Thereby preventing the influence of heat.

The support member 82 supports a vertical portion 61a extending in the vertical direction of the tail pipe. On the other hand, the support member 83 supports the transverse portion 61b extending in the horizontal direction of the tail pipe. And is supported by the threshing section 15 more firmly by being supported at a plurality of locations. On the other hand, in the present embodiment, the support member may be supported at two locations but supported at three or more locations.

Next, the discharge auger 21 will be described. As shown in Fig. 1, the discharge auger 21 has a vertical transfer auger 22 and a lateral transfer auger 23. As shown in Fig. 7, the base of the transverse auger 23 is connected to the upper portion of the vertical conveying auger 22 so as to be vertically rotatable. A bracket 55 protrudes from the side of the vertical conveying auger 22 and a bracket 56 protrudes from the side of the lateral conveying auger 23. [ One end of a cylinder 51 as a vertical driving means is rotatably mounted on the bracket 55 and the other end of the cylinder 51 is rotatably mounted on the bracket 56. By the expansion and contraction of the cylinder 51, the discharge auger 21 is vertically moved. The horizontal transverse auger 23 is provided with a rotary potentiometer 53 as a vertical angle detecting means and a vertical angle of the discharge auger 21 is detected by a rotary potentiometer 53. [

As shown in Fig. 7, a spur wheel 57 is fixed to the intermediate portion of the vertical conveying auger 22. An actuator 52 as a horizontal direction driving means is provided on the base 13 side and a toothed wheel 58 is provided on a rotary shaft of the actuator 52. The spur gear 57 and the spur wheel 58 are sandwiched between the vertical conveying auger 22 and the lateral conveying auger 23 by operating the actuator 52 to rotate in a horizontal direction. A rotary potentiometer 54 as a horizontal angle detecting means is provided coaxially with the spur gear 58. And the horizontal angle of the discharge auger 21 is detected by the rotary potentiometer 54. [ The elevation angle detection means and the horizontal angle detection means may use rotation angle detection means such as a resolver or 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 base 13 of the combine 11. The guard member 81 prevents the interference between the tail pipe 61 and the discharge auger 21 so that the discharge auger 21 does not come into contact with the tail pipe 61 when the discharge auger 21 approaches the tail pipe 61 . The mounting position and shape of the guard member 81 are determined by finding the vertical angle and the horizontal angle of the discharge auger 21 corresponding to the position where the tail pipe 61 is likely to interfere with the tail pipe 61, The lateral conveying auger 23 is brought into contact with the guard member 81 before the tail pipe 61 before the front wall 21 enters.

Specifically, the guard member 81 is formed by bending a metal pipe, a rod-shaped member, or a plate-like member in a substantially inverted U-shape. As shown in Fig. 6, one end of the pipe is positioned at the position below the rear end of the tail pipe 61 at a position away from the rear end of the tail pipe 61 by a predetermined distance, Is fixed to the frame between the tank (17) and the threshing portion (15), and is drawn up to extend vertically from the frame toward the upper side of the base (13). As shown in FIG. 5, the rear end of the tail pipe 61 is curved in a 'U' shape at a position substantially the same height as the rear end of the tail pipe 61 and extends toward the left rear diagonally of the base 13 to form a lateral guard member 81a do. Subsequently, the rear portion of the transverse guard member 81a is bent downward at a position substantially equal to the upper end of the grain tank 17, and extends in the vertical direction to form the vertical guard member 81b. Since the vertical guard member 81b is extended downward to directly contact the threshing portion 15, the longitudinal guard member 81b is bent substantially in the form of a crank when viewed from the front, 15 to the mounting table provided on the right side surface.

The guard member 81 is disposed on the rear right 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 side end portion 63 of the tail pipe 61. [ Here, as shown in Figs. 4 and 8, the tail pipe 61 is formed so as to be discharged upward at an angle? (Hereinafter referred to as discharge direction?) With respect to the horizontal direction of the gas when viewed from the side. Then, the guard member 81 is disposed in parallel with the discharge direction? Of the tail pipe 61. Specifically, the longitudinal axis direction of the transverse guard member 81a of the guard member 81 and the discharge direction beta of the tail pipe 61 are arranged in parallel. 6, the dimension B from the downstream side end portion 63 of the tail pipe 61 to the guard member 81 (vertical guard member 81b) in the discharge direction?

8, the exhaust gas is discharged from the downstream side end portion 63 of the tail pipe 61 in the exhaust direction beta, but the exhaust gas does not directly touch the guard member 81. As shown in Fig. On the other hand, when the lateral transfer auger 23 of the discharge auger 21 is rotated, the lateral transfer auger 23 is brought closest to the guard member 81, that is, the lateral transfer auger 23 is moved to the auger storage position The horizontal conveying auger 23 is moved in parallel with the discharge direction beta and the horizontal guard member 81a and the vertical guard member 81b are moved parallel to the discharge direction, The lateral transfer auger 23 is spaced apart from the dimension B by a distance of two lines (a two-line dotted line in Fig. 8).

6, the guard member 81 is disposed in parallel with the discharge direction? Of the tail pipe 61. As shown in FIG. That is, as described above, the guard member 81 has a shape that is substantially 'united' when viewed from the top, and the guard member 81 is disposed in parallel with the discharge direction? Of the tail pipe 61 . Therefore, the guard member 81 can be arranged compactly on the base body 13, and the space above the base body 13 can be efficiently utilized.

Next, the guard plate 90 will be described. As shown in Figs. 8 and 11, the guard plate 90 is formed by bending a rectangular metal plate so as to have a substantially C-shaped cross-sectional shape and to cover a substantially lower portion of the transverse auger 23. On the other hand, the guard plate 90 may be cylindrical and cover the entire outer periphery of the transverse auger 23. Further, even if soot contained in the exhaust gas is adhered to the guard plate 90 due to black heat-resistant coating on the guard plate 90, contamination of the surface of the guard plate 90 is not noticeable. The color of the entire outer surface of the lateral conveying auger 23 as well as the vicinity of the end portion 63 of the tail pipe 61 at the time of storing the lateral conveying auger 23, , Or by making the color close to soot, the contamination of the surface of the guard plate 90 may be made less conspicuous.

The guard plate 90 is mounted on the transverse auger 23 of the discharge auger 21. More specifically, the guard plate 90 is located near the downstream end 63 of the tail pipe 61 of the transverse conveying auger 23 at the position where the transverse conveying augment 23 is housed (the downstream end 63 And the bottom surface of the guard plate 90 is mounted so as to face the downstream side end portion 63 of the tail pipe 61. As shown in Fig. The shape of the guard plate 90 is not limited to the present embodiment, but it is only required to be able to cover a portion near the downstream end 63 of the tail pipe 61.

As shown in Fig. 8, a plurality of (six in this embodiment) high (high) beams are arranged at predetermined angles (approximately 90 degrees) in the radial direction at the mounting position of the guard plate 90 of the transverse conveying auger 23. [ ) Nuts (or bolts) 91 are fixed by welding or the like. Similarly, a bolt hole is opened at a position facing the high nut 91 of the guard plate 90. That is, in the transverse conveying auger 23, six high nuts 91 are fixed by welding or the like at a position facing the front end and the rear end of the guard plate 90. On the other hand, a bolt hole is formed in the guard plate 90 at a position corresponding to the high nut 91 of the transverse transfer auger 23. The bolt holes of the guard plate 90 and the bolt holes 91 of the transverse transfer auger 23 are aligned with each other and the bolt 92 is inserted to attach the guard plate 90 to the transverse transfer auger 23. The method of mounting the guard plate 90 is not limited to this embodiment, and it is sufficient that the guard plate 90 can be fixed to the lateral guard member 81a.

11, the guard plate 90 is mounted so as to be spaced apart from the outer circumferential surface of the transverse transfer augment 23 by a length of the high nut 91, and the guard plate 90 and the transverse transfer auger A gap 93 is formed. Therefore, a gap 93 is formed between the guard plate 90 and the transverse transfer auger 23 so that heat can be radiated therebetween and the thermal conduction from the guard plate 90 to the transverse auger 23 is reduced. Alternatively, a heat insulating material may be interposed between the guard plate 90 and the outer peripheral surface of the transverse auger 23, or a heat insulating material serving also as a buffering member having heat resistance may be directly adhered to the outer peripheral surface of the transverse auger 23.

As shown in Figs. 8 and 10, the lateral conveying auger 23 of the discharge auger 21 may approach the guard member 81 depending on the operation. 8 and 8 from the downstream side end portion 63 of the tail pipe 61. In this case, the lateral conveying auger 23 can be moved above the lateral guard member 81a and laterally of the vertical guard member 81b, It is possible to prevent the exhaust gas from being blocked by the guard plate 90 and coming into contact with the transverse transfer grooves 23 of the discharge auger 21 when the exhaust gas is discharged in the direction of the arrow shown in Fig. Since the guard plate 90 is mounted between the transverse conveying auger 23 and the guard member 81, the guard plate 90 is brought into contact with the guard member 81, Deformation of the auger 23 is prevented.

As described above, the combine 11 according to the present invention includes a grain tank 17 for storing rice after cutting, threshing, and sorting, and an engine 34 having one end mounted on the base and the other end connected to the threshing portion 15. [ And an exhaust device (41) constituted by a tail pipe (61) or the like, the exhaust silencer (42) extending between the exhaust port (41) and the grain tank (17) The tail pipe 61 connected to the exhaust manifold 36 is supported by the support members 82 and 83 provided on the hoist 15. [ With this configuration, the surface temperature of the tail pipe 61 is lowered by introducing the exhaust air discharged from the radiator. Also, deposition of dust on the muffler pipe is prevented. In addition, since the tail pipe 15 is supported by the shrunk portion 15 with less vibration, the durability of the tail pipe 61 is improved. Further, since the tail pipe 61 is improved in durability, it is possible to use a lightweight material.

The exhaust device 41 includes an exhaust silencer 42 connected to the engine 34 in an engine room 32 disposed in front of the exhaust gas outlet 42 and connected to a downstream side of the exhaust silencer 42, A tail pipe 61 which is provided in the tail pipe 61 in the engine room 32 and allows the outside air in the engine room 32 to flow into the tail pipe 61 And an outside air introducing portion 71 for introducing the outside air. With such a configuration, mud or the like wound up during traveling is hardly caught by the exhausting device 41, so that mud or the like is prevented from being attracted to the exhausting device 41, and mud or the like is prevented from entering. Therefore, it is possible to prevent the running performance of the combine 11 from being lowered due to the attraction of the mud or the like of the exhaust device 41 or the infiltration of mud or the like.

Further, since the exhaust device 41 is piped above the gas, the exhaust gas discharged from the tail pipe 61 is not sprayed to the ground below the gas, so that the dust or the like is wound around the combine 11 by the exhaust gas It can prevent coming.

The outside air introduction portion 71 is provided in the tail pipe 61 in the engine room 32 and introduces the outside air in the engine room 32 into the tail pipe 61. The outside air in the engine room 32 is filled with dust, It is not necessary to provide the cover portion in the vicinity of the opening of the outside air introduction portion 71. Therefore, the structure of the outside air introduction portion 41 can be simplified and the structure of the exhaust device can be simplified.

In addition, the discharge direction of the tail pipe (61) from the discharge port (63) is configured to discharge from the front, back, right and left central portions of the gas toward the rear outer corner of the threshing portion (15). With this configuration, the exhaust gas can be discharged in a direction away from the driver's seat or the air intake port. Further, it becomes possible to take a sufficient distance to allow the exhaust gas to diffuse after being discharged from the tail pipe 61.

A drainage auger 21 disposed so as to be vertically and horizontally rotatable so as to discharge rice from the grain tank 17; And an exhaust device 41 connected to an engine 34 mounted on the base and the other end of which is constituted by an exhaust silencer 42 extending between the threshing section 15 and the grain tank 17 and a tail pipe 61 or the like The discharge port 63 of the tail pipe 61 is disposed above the threshing section 15 and the discharge direction is located behind the discharge auger 21 at the time of storage.

The outlet 63 of the tail pipe 61 is disposed below the transverse conveying auger 23 of the discharge auger 21 at the time of storage at the substantially central portion in the longitudinal direction of the base. With such a configuration, the tip of the tail pipe 61 does not touch at the time of storage in the garage. Further, the exhaust gas does not come into contact with the ceiling, the wall or the like at the time of containment, so that it does not become dirty. In addition, even when the nonwoven sheet 100 is put on the entire base body during storage or after the end of the work, the nonwoven sheet 100 does not contact the tail pipe 61, and the nonwoven sheet 100 is wiped with the heat of the tail pipe 61 I never do that.

The guard member 81 is disposed higher than the downstream end of the tail pipe 61 and parallel to the discharge direction of the tail pipe 61 as seen in plan view. With this configuration, it is possible to prevent the interference between the tail pipe 61 and the discharge auger 21 by the guard member.

Example 2

Next, a second embodiment of the present invention will be described with reference to the drawings.

The combine according to this embodiment will be described with reference to the drawings. Fig. 16 is a side view of the combine, Fig. 17 is a front view of the combine, Fig. 18 is a plan view of the combine, Fig. 19 is a side schematic view of the exhaust device, Fig. 20 is a schematic front view of the exhaust device, .

First, the overall configuration of the combine 111 will be described. 16 to 18, the combine 111 is provided with a chassis 113 on a crawler traveling device 112 including right and left crawlers, and an engine 134 (See Fig. 19) is mounted. A transmission case 131 (see FIG. 21) for shifting the driving force of the engine 134 to the crawler traveling device 112 is disposed in front of the base 113, and the mission case 131 is provided with a crawler traveling device 112 are provided. A sorting section 116 is provided on the front side of the base body 113 and on the left side in the traveling direction on the upper side of the base 113 and the upper side of the sorting section 116 is provided with a feed and feed chain 115a The sorting unit 115 is provided with a first conveyor or a second conveyor at a lower portion of the sorting unit 116. A seat 119 is provided on the right front portion of the upper portion of the base body 113 and a top soaker 117 serving as a curved receiving portion for temporarily storing the rice and discharging the rice to the envelope is provided on the right rear portion of the base body 113. The grain that has been precisely sorted by the sorting unit 116 is temporarily stored in the topsoaker 117 from the first conveyor through the grain barrel 124. In addition, from the No. 2 conveyor, it is reduced to the front portion of the sorting unit 116 through the No. 2 reducing apparatus 120. The bottom portion of the top soaker 117 is provided with an outlet 117a for discharging it as an envelope or the like. The outlet 117a is equipped with a shutter so that it can be opened and closed by operating the shutter, so that it can be closed when the envelope is exchanged or if necessary, and can be closed when not in use. Further, a pillar for suspending the envelope is disposed on the side of the discharge port 117a.

The engine 134 is mounted below the front portion of the base body 113 of the combine 111 and the engine 134 is accommodated in the engine room 132 as shown in Fig. The engine room 132 is constituted by an engine room cover (not shown) covering the upper surface, the front surface, the left and right sides, and the rear surface is constituted by the engine room rear frame 133. An opening (not shown) for blowing the cooling outside air is provided in the engine room 132 and an air cleaner or an air intake silencer is disposed over the engine 134 from behind the seat 119 An intake path (not shown) is formed.

Next, the exhaust device 141 will be described. As shown in Fig. 19, the exhaust device 141 is connected to the exhaust manifold 136 of the engine 134 to exhaust the exhaust gas after combustion, and to reduce the exhaust sound accompanying the explosion. The exhaust device 141 has an exhaust silencer 142, a tail pipe 161, and an outside air inlet portion 171.

The exhaust silencer 142 is connected to the exhaust manifold 136 of the engine 134 to reduce the exhaust noise. As shown in Fig. 19, the exhaust silencer 142 is a normal body having a substantially elliptical cross-sectional shape, and a silencer outlet pipe 143, which is an exhaust gas outlet, is provided near one side. The exhaust silencer 142 is disposed in the engine room 132 at a position above the engine 134 where the exhaust wind of the cooling fan 135 reaches. Since the exhaust silencer 142 is provided at a position where the exhaust wind of the cooling fan 135 is exposed, it is possible to prevent the exhaust silencer 142 from being cooled and accumulating dust. 20, the exhaust silencer 142 is disposed so as to face the left and right direction of the base body 113 in the longitudinal direction and to offset in the leftward direction of the base body 113 with respect to the exhaust manifold 136, The silencer outlet pipe 143 is connected to the left side in the traveling direction of the base body 113.

Next, the tail pipe 161 will be described. The tail pipe 161 is connected to the downstream side of the exhaust silencer 142 to exhaust the exhaust gas from the engine 134. 19 to 21, the tail pipe 161 is formed in such a manner that the rear end of the base body 113 at the upstream side end portion 162, which is a portion connected to the silencer outlet pipe 143 of the exhaust silencer 142, And then extends toward the left side of the base body 113 while being bent toward the upper side of the base body 113 from the rear of the penetration portion of the engine room rear frame 133 and then to the top soaker 117 and the threshing portion 115 The tail pipe 161 is bent in the horizontal direction toward the rear of the base 113 and extends rearward to the rear of the base 113. The tail pipe 161 is provided near the front and rear center of the apparatus (the hoist 115 or the top soaker 117) The downstream side end portion 163 is disposed. The downstream side end portion 163 is bent at an angle? (Fig. 19) obliquely upwardly with respect to the horizontal plane when viewed from the side, and is inclined to the left rear side (feed chain side) obliquely with respect to the front- 21).

In addition, the tail pipe 161 is arranged to bypass the vicinity of the No. 2 reducing device 120 and the barrel 124 upward. That is, the tail pipe 161 approaches the fore and aft barrel 124 in the vicinity of the bent portion toward the upper side in the vicinity of the front portion of the front end of the No. 2 reducing device 120 and the portion extending horizontally rearward from above, (Left direction in the traveling direction). As described above, by arranging the tail pipe 161 in the vicinity of the No. 2 reducing apparatus 120 and the grain cylinder 124, the heat of the exhaust gas is conducted to the inside of the No. 2 reducing apparatus 120 and the grain cylinder 124 So that the clogging can be reduced by warming and drying the inside of the humidifier.

As shown in Fig. 19, the tail pipe 161 is composed of an outer pipe 164 and an inner pipe 165. As shown in Fig. The inner pipe 165 is connected to the silane outlet pipe 143 of the exhaust silencer 142 to pass the exhaust gas and the outer pipe 164 is a portion forming the heat insulating layer between the inner pipe 165 and the inner pipe 165. The inner pipe 165 and the outer pipe 164 are made of metal straight pipe and elbow respectively and the inner pipe 165 is inserted into the outer pipe 164. The inner pipe 165 inserted into the outer pipe 164 is fixed by the welding means or the like to the outer surface of the inner pipe 165 and the inner surface of the outer pipe 164 to fix the inner pipe 165 to the outer pipe 164, And a predetermined gap is secured between them. The gap between the inner pipe 165 and the outer pipe 164 serves as a heat insulating layer. The gap is communicated from the upstream side end 162 of the tail pipe 161 to the downstream side end 163. In the present embodiment, the tail pipe 161 is a double pipe composed of the outer pipe 164 and the inner pipe 165, but may be a single pipe made up only of the inner pipe 165, It may be triple or more.

The shape of the downstream side end portion 163 of the tail pipe 161 is such that the end portion of the inner pipe 165 is located on the upstream side of the end portion of the outer pipe 164, And the end positions of the outer tube 164 and the inner tube 165 are different from each other. In addition, the end of the outer tube 164 is cut obliquely and the upper side is protruded so as to prevent rainwater or the like from entering the tail pipe 161. The engine 134 is operated so that the exhaust gas flows from the downstream end of the inner pipe 165 to the inner pipe 165 because the difference in the end positions of the outer pipe 164 and the inner pipe 165 at the downstream end 163 of the tail pipe 161 A negative pressure is generated between the rear end of the inner pipe 165 and the outer pipe 164 by the air flow of the exhaust gas to suck air from between the front end of the outer pipe 164 and the front portion of the inner pipe 165, A flow of air in the downstream direction occurs in the gap between the outer tube 164 and the outer tube 164. When a flow of air occurs, the inside of the gap is ventilated, so that the temperature rise of the air inside the gap is suppressed low, and the heat insulating effect between the inner pipe 165 and the outer pipe 164 is enhanced. Therefore, the rise of the surface temperature of the outer tube 164 can be suppressed to a low level, so that it is possible to prevent the thermal influence on the harness and the like even if the harness or the like is provided by approaching the tail pipe 161. In addition, rainwater or the like can be prevented from entering the tail pipe 161.

The shape of the tail pipe 161 on the engine room 132 side at the upstream side end portion 162 is such that the end portion of the inner pipe 165 protrudes to the upstream side of the end portion of the outer pipe 164, And the end portions of the outer pipe 164 and the inner pipe 165 differ from each other.

In addition, the shape of the tail pipe 161 at the upstream side end portion 162 is obliquely cut to form a guide. The side of the long side of the guide is provided so as to face the exhaust wind exhausted from the radiator. With this configuration, it is possible to reduce the surface temperature of the tail pipe by increasing the amount of outdoor air introduced.

Since the clearance between the inner pipe 165 and the outer pipe 164 communicates with the outside air at the upstream end 162 of the tail pipe 161, the clearance between the downstream end 163 of the tail pipe 161, The water is discharged from the upstream-side end portion 162. [0064] It is therefore possible to prevent rainwater or the like from entering the inside of the exhaust silencer 142 or the engine 134 through the gap between the inner pipe 165 and the outer pipe 164.

Here, as shown in Fig. 18, the tail pipe 161 has an angle? (Hereinafter referred to as " a " The downstream end 163 of the tail pipe 161 is positioned in the vicinity of the center of the apparatus. That is, the tail pipe 161 is discharged in the discharge direction? From the downstream end 163 in the vicinity of the center of the apparatus. Further, as shown in Fig. 21, the shape is a shape that is piped to discharge at an angle? (Hereinafter, referred to as discharge direction?) Which is higher than the height when the paper cover is rotated upward as much as possible.

Therefore, as shown in Fig. 18, the dimension A to the edge of the main body (here, near the left rear corner of the main body) is taken longer and the length of the main body It is possible to exhaust the exhaust gas to a position far from the operator so that it is possible to reduce the influence of the exhaust gas to the operator (specifically, to exhaust the exhaust gas or to attach the soot) The influence of the exhaust gas on the soaker 117 can be reduced. In addition, since the exhaust gas is discharged above the height when the paper cover is opened to the maximum, exhaust can be prevented from reaching the paper cover, thereby preventing contamination. The angle? Of the discharge direction to the left side of the apparatus is preferably 30 degrees or less.

Next, the outside air introduction portion 171 will be described. The outside air introduction portion 171 introduces outside air into the inside pipe 165 of the tail pipe 161 to lower the temperature of the exhaust gas by outside air. The silencer outlet pipe 143 of the exhaust silencer 142 is connected to the upstream side end portion 162 of the tail pipe 161 and the outside air intake portion 171 is connected to the connection portion between the exhaust silencer 142 and the tail pipe 161 . When the exhaust gas passes through the inner pipe 165 at the time of operation of the engine 134, a negative pressure is generated in the outside air introducing portion 171 by the air flow of the exhaust gas, so that outside air flows from the opening portion of the outside air introducing portion 171 to the inside pipe 165 And is sucked.

The upstream side end portion 162 of the tail pipe 161 is basically the same as the upstream side end portion 62 according to the first embodiment and the upstream side end portion 162 is shown in Figs. 13, and 14 shown in Fig.

19, the outside air introduction portion 171 is provided in the engine room 132 close to the exhaust silencer 142, and is provided at a position where the exhaust wind of the cooling fan 135 is in contact. The exhaust air of the cooling fan 135 always touches the outside air introduction portion 171 so that the low temperature air can be introduced from the outside air introduction portion 171 and accumulation of dust on the outside air introduction portion 171 can be prevented.

20, the direction in which the tail pipe 161 and the silencer outlet pipe 143 are connected is the forward and backward direction of the base body 113. [ Since the vibration of the silencer outlet pipe 143 due to the vibration of the engine 134 coincides with the inserting direction by inserting the silencer outlet pipe 143 in the direction corresponding to the vibration direction of the engine 134, It is difficult to contact the contact surface 165. In order to prevent interference between the silencer outlet pipe 143 and the tail pipe 161, it is preferable that the inserting direction of the silencer outlet pipe 143 is a direction in which the vibration of the engine 134 is large.

The outside air introduction portion 171 is formed so that a silencer outlet pipe 143 provided in the exhaust silencer 142 is inserted into the tail pipe 161 and a clearance is secured between the silencer outlet pipe 143 and the tail pipe 161 The flange connecting the exhaust silencer 142 and the tail pipe 161 becomes unnecessary. Since the flange is not required, the mass of the exhaust silencer 142 as the oscillator can be reduced, and the vibration of the exhaust silencer 142 can be reduced, so that the noise due to vibration can be reduced.

Next, the support of the exhaust device 141 will be described. 19 to 21, the tail pipe 161 is supported on the threshing portion 115 via the support members 182, 183, and 184. As described above, if the exhaust device 141 is piped and supported above the base 113, it becomes difficult for the exhaust device 141 to accumulate dust or the like. In the support portion of the tail pipe 161 of the tail pipe 161, the gap between the tail pipe 161 and the hoist portion 115 is sufficiently secured, and a harness, a gas hose, or the like is disposed under the tail pipe 161 Thereby preventing the influence of heat.

The support members 182 and 183 fixed to the right side surface of the threshing portion 115 support the vertical portion 161a extending in the vertical direction of the tail pipe 161. [ The supporting member 184 fixed to the upper right surface of the threshing portion 115 supports the transverse portion 161b extending in the horizontal direction of the tail pipe 161. [ By being supported at a plurality of locations as described above, it is supported by the threshing section 115 more firmly. On the other hand, in the present embodiment, the support members are supported at three locations, but two or less locations or four or more locations may be supported.

As described above, the combine 111 according to the present invention includes a top soaker 117 for storing rice after cutting, threshing, and sorting, and an engine 134 having one end mounted on the base and the other end connected to the threshing portion 115. [ And an exhaust device 141 constituted by an exhaust silencer 142 and a tail pipe 161 extending between the top shoaker 117 and the top soaker 117. The combine is provided on the upstream side of the exhaust device 141 with an engine 134 The tail pipe 161 connected to the exhaust manifold 136 of the throttle body 115 is supported by the support members 182, 183 and 184 provided on the threshing portion 115. With this configuration, the surface temperature of the tail pipe 161 is lowered by introducing the exhaust air discharged from the radiator. Also, deposition of dust on the muffler pipe is prevented. In addition, since the tail pipe 161 is supported by the shrunk portion 115 with less vibration, the durability of the tail pipe 161 is improved. Further, since the tail pipe 161 has improved durability, it is possible to use a lightweight material.

The exhaust device 141 includes an exhaust silencer 142 connected to the engine 134 in an engine room 132 disposed in front of the exhaust gas outlet of the exhaust gas silencer 142 and connected to the downstream side of the exhaust silencer 142, A tail pipe 161 for discharging the exhaust gas from the engine 134 to the tail pipe 161 in the engine room 132 and for introducing outside air in the engine room 132 into the tail pipe 161 And an outside air introducing portion 171 for introducing the air. With this configuration, mud or the like rolled up during running is hardly caught by the exhaust device 141, so that mud or the like is prevented from being attracted to the exhaust device 141, and mud or the like is prevented from entering. Therefore, it is possible to prevent the driving performance of the combine 111 from deteriorating due to the attraction of mud or the like of the exhaust device 141 or the invasion of mud.

Further, since the exhaust device 141 is piped above the gas, the exhaust gas discharged from the tail pipe 161 is not sprayed to the ground below the gas, so that dust or the like is wound around the combine 111 by the exhaust gas It can prevent coming.

The outside air introducing portion 171 is provided in the tail pipe 161 in the engine room 132 and introduces the outside air in the engine room 132 into the tail pipe 161. The outside air in the engine room 132 is air- It is not necessary to provide the cover portion in the vicinity of the opening of the outside air introduction portion 141. Therefore, the structure of the outside air introduction portion 141 can be simplified, and the structure of the exhaust device can be simplified.

INDUSTRIAL APPLICABILITY The present invention can be utilized in the technique of a combine in which an exhaust device is piped to an upper portion of a gas.

Claims (6)

An exhaust silencer and a tail which are connected to an engine mounted on a machine body and whose other ends are extended between the threshing portion and the grain receiving portion; And a tail pipe connected to an exhaust manifold of an engine on an upstream side of the exhaust device is supported by a support provided on a threshing portion, In the exhaust device, An exhaust silencer connected to the engine in an engine room provided at the front of the vehicle, A tail pipe connected to a downstream side of the exhaust silencer and disposed above the gas exhaust pipe to discharge exhaust gas from the engine, And an outside air introduction portion provided in the tail pipe in the engine room for introducing outside air in an engine room into a tail pipe, The tail pipe Wherein the bending portion is bent and extends from the rear portion of the engine toward the upper side of the body and extends from the bending portion to the upper side of the bending portion to bend toward the rear of the body. delete The method according to claim 1, And the discharge direction of the tail pipe from the discharge port is discharged toward the rear outer side edge portion of the threshing portion at the front, rear, center, left, and right central portions when seen from the plane. An auger which is disposed so as to be rotatable in the up-and-down direction and in the horizontal direction and discharges the rice in the curved receiving section, an engine And an exhaust device formed by an exhaust silencer and a tail pipe, the other end of which is extended between the threshing portion and the curved storage portion, wherein the discharge port of the tail pipe is disposed above the threshing portion, And the tail pipe extends rearwardly from the rear of the engine toward the upper side of the body and extends between the curled-up storage portion and the threshing portion to reach the upper portion of the threshing portion And extends in a bent direction toward the rear of the gas. 5. The method of claim 4, Wherein the outlet pipe of the tail pipe is disposed below the lateral auger of the discharge auger at the center in the front-rear direction of the gas container. The method according to claim 4 or 5, Wherein a guard member is disposed higher than a downstream side end portion of the tail pipe and parallel to a discharge direction of the tail pipe when viewed in plan view.

Images