JP2008099594A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester capable of preventing dust from invading into the upper corner part of a threshing part at the vicinity of a tail pipe, and also preventing the dust from being accumulated. <P>SOLUTION: The combine harvester is constituted as follows. A screen 100 is arranged between a supporting frame 296 for supporting a back net 290 at the back side of a receiving net 230 at the opposite side of a feed chain 9, and the inner face of a side plate 210b at the back side of the threshing chamber 210 in the threshing device obtained by rotatably supporting the threshing cylinder 220 in the threshing chamber 210, and covering the underside outer periphery of the threshing cylinder 220 with the receiving net 230 so as to be detachable. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a combine, and more particularly, to a configuration of a threshing device disposed on an upper part of a combine body.

  Conventionally, a combine technology in which an exhaust device is piped on the upper part of the fuselage is known. As a combine equipped with such an exhaust device, for example, an exhaust silencer is provided in an engine room and connected to the exhaust silencer. A tail pipe is provided above the fuselage, and a rear part of the tail pipe is fixed to an upper part of the threshing part (see, for example, Patent Document 1). 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 get caught in the exhaust device, mud etc. Is prevented from entering. For this reason, it is possible to prevent a drop in the traveling performance of the combine due to the inclusion of mud or the like in the exhaust device or the intrusion of mud or the like.
Japanese Utility Model Publication No. 61-26130

However, in the exhaust device as described above, the surface temperature of the exhaust device increases due to the heat of the exhaust gas. The tail pipe is often supported in the vicinity of the corner of the threshing portion, and when the temperature of the tail pipe itself becomes high, heat is transferred to the threshing portion, but the inside of the corner of the threshing portion is structurally dusty. Etc. are easily deposited, and combustibles are present near the heat source.
The present invention has been made in view of the above problems, and provides a combine that can prevent dust from entering the upper corner of the threshing portion in the vicinity of the tail pipe and prevent dust accumulation.

  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, in the threshing apparatus in which the handling cylinder is rotatably supported in the handling chamber, the lower outer periphery of the handling cylinder is covered with the receiving net, and the receiving net is detachable, the threshing apparatus is opposite to the feed chain. A shielding plate is disposed between the support frame that supports the back side of the receiving net and the inner surface of the side plate on the back side of the handling chamber.

  According to a second aspect of the present invention, a plurality of partition plates are provided in a direction perpendicular to the shielding plate on the inner surface of the corner portion on the back side of the shielding plate, the support frame, and the handling chamber.

  According to a third aspect of the present invention, the partition plate is disposed in the vicinity of a support member provided to support a tail pipe for releasing exhaust gas from the engine silencer to the outside of the fuselage at the upper part of the handling chamber.

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

  According to the first aspect of the present invention, it is possible to prevent dust from entering the upper corner on the back side of the handling chamber and to prevent dust accumulation. Also, cleaning can be easily performed.

  In the second aspect, the strength of the support frame can be increased.

  In claim 3, the strength of the tail pipe mounting portion can be improved. Moreover, the intrusion of the combustible material in the vicinity of the tail pipe serving as a heat source can be blocked by the shielding plate, and a heat insulating space can be formed.

  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 schematic left side view of the threshing unit 15 and the sorting unit 16, FIG. 8 is a front view showing the handling chamber 210, and FIG. 10 is a front view showing the threshing portion 15 and the tail pipe 61, FIG. 11 is a front sectional view showing the shielding plate 100, FIG. 12 is a plan view, FIG. 13 is a right side view showing the handling chamber 210, and FIG. FIG. 15 is a cross-sectional front view of the same.

  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 unit 14 is provided at the front of the machine body 13, and a sorting unit 16 is provided on the left side of the traveling direction at the upper part of the machine body 13, and a handling cylinder 220, a grain feeder 170 and the like are provided above the sorting unit 16. A threshing unit 15 is provided. A seat 19 and a cabin 18 which is a driving operation unit 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. A guard plate 90 is attached to the lateral feed auger 23 of the discharge auger 21 at a location approaching the downstream end 63 of the tail pipe 61.

  As shown in FIG. 4, the engine 34 is mounted below the cabin 18 on the front portion 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 that covers the upper surface, the front surface, and the left and right side surfaces. The front surface is an engine room front cover 37 serving as a front wall, and the rear surface is attached to the engine room rear frame 33 and serves as a rear wall. The rear cover 38 and the upper surface are constituted by a heat shield plate 50. Further, the engine room 32 is provided with an opening (not shown) for taking in outside air for cooling on the right side, and in the vicinity of the opening, a radiator 40, a radiator 40, and an engine 34 are provided as shown in FIG. A cooling fan 35 for sucking outside air for cooling is provided, and an intake path (not shown) in which an air cleaner, an intake silencer, and the like are disposed is formed from the rear lower part of the cabin 18 to the engine 34.

Next, the said threshing part 15 is demonstrated using FIG.7 and FIG.8.
In the handling chamber 210 formed in the threshing portion 15, a substantially cylindrical handling cylinder 220 that is pivoted in the front-rear direction of the machine body is rotatably supported, and a tooth handling 220 a is provided on the outer peripheral surface of the handling cylinder 220.・ 220a ... are planted. A semicircular receiving net 230 is detachably provided so as to cover the lower periphery of the handling cylinder 220. On the other hand, the feed chain 9 restrains the stock side of the cereal while inserting the tip (point) side of the cereal into the lower side of the handling cylinder 220 and transports the cereal to the rear of the machine body. At this time, threshing is performed by rotation of the barrel 220, so that grains, sawdust, and the like leak from the receiving net 230.

  A dust feed valve 240 is provided on the inner peripheral surface of the chamber cover 210a covering the chamber 210 at an appropriate interval in the left-right width direction, and is pivotally supported around a pivot point in the vertical direction. ing. Then, by rotating the dust feed valve 240, it is possible to adjust the time required for the cereal to move in the handling chamber 210 according to the varieties of the cereal and the state of the cereal.

  A processing chamber 250 is formed at the rear side of the rear side of the handling cylinder 220 (the Glen tank 17 side, in the present embodiment, the right side in the machine body traveling direction), and the processing chamber 250 has a substantially cylindrical shape. The dust feeding port processing cylinder 260 is horizontally supported and pivotally supported in the front-rear direction on the side of the rear portion of the handling cylinder 220 so that it is parallel to the handling cylinder 220. Further, the rear (right) side surface of the handling cylinder case that covers the handling cylinder 220 and forms the handling chamber 210, and the front part (left) of the processing cylinder case that covers the dust feeding port processing cylinder 260 and forms the processing chamber 250. A dust feed port 270 is opened on the side surface, and the handling chamber 210 and the processing chamber 250 communicate with each other. A semicircular processing cylinder net 280 is provided so as to cover the lower periphery of the dust-feed port processing cylinder 260. In this way, unprocessed materials such as shoots adhering grains that could not be processed by the handling cylinder 220 are transferred into the processing chamber 250 from the dust feed port 270 and processed, and holes (mesh) provided in the processing cylinder network 280 are processed. Only the processed material leaks through.

  In addition, a blade body 260a made of a long plate body is fixed on the outer peripheral surface of the rear end portion of the dust supply port processing cylinder 260. The blade 260a rotates integrally with the dust outlet processing cylinder 260, and the sawdust conveyed to the rear of the processing chamber 250 by the dust outlet processing cylinder 260 is splashed off by the rotation of the blade 260a. It is discharged below the dust feed port processing cylinder 260 and guided outside the machine body by a guide plate (not shown).

  A dust feeding / conveying conveyor 281 is pivoted in the front-rear direction below the processing cylinder 280. The dust feeding conveyor 281 is a screw type conveyor, and the processed material that has dropped downward through the holes (mesh) provided in the processing cylinder net 280 by the dust feeding conveyor 281 is forward of the machine body (that is, , In the direction opposite to the conveying direction of the dust feeding port processing cylinder 260), and is reintroduced into the sorting unit 16 from the dust discharging port 281 a provided at the front end of the dust feeding and conveying conveyor 281.

  An outlet partition plate 520 is disposed at the rear of the handling cylinder 220, and a sieving device 119 is disposed at the lower part of the outlet partition plate 520 and above the extension line of the handling cylinder receiving net 230. Screening grains are selected to improve the selection.

Then, the structure of the receiving network 230 of the threshing part 15 is demonstrated using FIG.8 and FIG.9.
The receiving net 230 is divided into two parts, with the glen tank 17 side (traveling direction right side) as the back net 290 and the feed chain 9 side (traveling direction left side) as the front net 291. In FIG. 9, the back net 290 and the front net 291 are connected by a connecting portion 295.

  The periphery of the back net 290 and the front net 291 is supported by a frame having an L-shape in cross section. In the connecting portion 295, the contact portion between the back net 290 and the front net 291 is arranged in the radial direction of the handling cylinder 220. Net frames 290a and 291a are formed by bending substantially outward at the right angle, and at this connecting portion 295, pins 292a, 292a, and 292a are connected to either the back net 290 or the front net 291 from the net frame. An insertion hole is formed in the other mesh frame corresponding to a position where the pin 292a is projected, and the front mesh 291 is pushed in. Thus, the pin 292a is fitted into the insertion hole to connect the back net 290 and the front net 291. Note that the position and number of the pins 292a are not limited, and the connection configuration is not limited, and may be a structure in which irregularities are fitted.

  Further, a net frame 290b is formed on the back side of the back net 290 in the same manner as the net frame 290a, and pins 292b, 292b, and 292b are positioned in the longitudinal direction of the machine body from the net frame 290b. The rear net 290 is fixed to the machine and is received by fitting the pins 292b to a support frame 296, which is a fixing member provided on the machine side. The net 230 is fixed below the handling cylinder 220.

  As shown in FIG. 9, the receiving net 230 is formed in a substantially L shape in plan view by a back net 290 and a front net 291, and the front net 291 protrudes slightly in the front-rear direction. The receiving net 230 is configured by fixing a thin metal plate 294 on a net frame 293, and the plate 294 has a rectangular hole 294a formed almost uniformly on the entire surface to form a mesh. Is formed. Then, through these punched holes 294a, soot and shavings, etc., which have been handled on the receiving net 230 by the tooth handling 220a, 220a,... Are leaked. In this embodiment, the shape of the hole 294a is a square, but it may be a circle or a polygon.

  As described above, the projecting portion 291 c in the receiving net 230 having a substantially L shape in plan view is the latter half of the grain supply path 9 a by the feed chain 9 and is located below the latter half of the handling cylinder 220. On the upper surface of the protruding portion 291c, a partition 297 having a predetermined height formed by a metal plate or the like is disposed between the teeth 220a in parallel with the moving direction of the teeth 220a due to the rotation of the barrel 220. A plurality of protrusions are provided at equal intervals in the longitudinal direction of the body so as to be positioned. In the projecting portion 291c provided with a plurality of partitions 297, the cereals conveyed by the feed chain 9 are lifted upward by the partitions 297 and pressed downward by the tooth handling 220a, 220a,. It is possible to bring the tooth handling 220a, 220a.

  The receiving network 230 is configured to be detachable from the side of the machine body. That is, the feed chain frame 190 configured to be openable and closable with respect to the aircraft side is opened, and the arc is formed along the rail provided on the frame 298 (see FIG. 9) provided on the aircraft side from the aircraft side. It can be pulled out and inserted and removed. Therefore, stoppers 299 and 299 are provided on the connecting portion 295 side of the net frame 293 before and after the back net 290, respectively. In the stoppers 299 and 299, a plate spring 299a formed by bending a part of a plate-like member into a mountain shape on the mesh frame 293 is fastened and fixed by a bolt or the like, and the plate spring 299a is fixed to the frame 298 on the body side. It can be locked using a stopper 299b or the like so that the back net 290 does not slip when the front net 291 is pulled out for maintenance or the like.

  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 portion 62, which is a portion that is externally connected to the silencer outlet pipe 43 of the exhaust silencer 42, toward the rear of the body 13. Yes. Further, an insertion port 60 for the tail pipe 61 is provided between the upper end 38 a side of the engine room rear cover 38 serving as the rear wall and the lower end side of the heat shield plate 50, and the insertion port 60, the tail pipe 61, It arrange | positions so that it may have a predetermined gap | interval between. Thus, the tail pipe 61 extends through the insertion opening 60, bends upward of the airframe 13 behind the through portion of the engine room rear frame 33, and extends toward the left side of the airframe 13. Next, when reaching the upper part of the threshing part 15 between the grain tank 17 and the threshing part 15, it bends in the horizontal direction again toward the rear of the machine 13 and extends backward, and this machine (the threshing part 15 or the Glen tank 17). ) A downstream end portion 63 of the tail pipe 61 is disposed near the front and rear center. 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.
Further, as shown in FIGS. 1 and 2, the tail pipe 61 is provided such that the upper end of the discharge port located at the highest position is lower than the lower end of 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 a part that is externally connected to the silencer outlet pipe 43 of the exhaust silencer 42 and 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 65 a of the inner pipe 65 protrudes upstream of the end of the outer pipe 64, and the upstream side of the tail pipe 61. In the end 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 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 FIGS. 3 and 6, the tail pipe 61 has an angle α (hereinafter, The downstream end portion 63 of the tail pipe 61 is located in the vicinity of the front, rear, left and right 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. Further, as shown in FIG. 5, the pipe is so shaped as to be discharged at an angle γ (hereinafter referred to as a discharge direction γ) that is higher than the height when the chamber cover 15 b is most opened. .

  Therefore, in order to discharge from the downstream end 63 in the vicinity of the center of the machine, as shown in FIG. 3, the dimension A up to the peripheral edge of the machine (here, the left rear corner of the machine) can be taken long and discharged. Since it is discharged in the direction α, the exhaust gas can be discharged far from the operator, and the influence of the exhaust gas on the operator (specifically, exhaust gas is sprayed or soot adheres) can be reduced. The influence of the exhaust gas on the discharge auger 21 and the grain tank 17 located on the right side can be reduced. Further, since the exhaust gas is discharged above the height when the handling chamber cover 15b is most opened, the handling chamber cover 15b is not exposed to the exhaust gas and can be prevented from being contaminated. The angle α in the discharge direction to the left side of the machine is preferably 30 degrees or less.

  Next, the shielding plate 100 will be described. As shown in FIGS. 10 and 11, the shielding plate 100 is formed so that the plate is bent in a generally square shape when viewed from the front, and the right end portion of the shielding plate 100 is bent downward in the vertical direction. It inclines and is arranged toward. The shielding plate 100 is substantially rectangular in plan view, and the right end of the shielding plate 100 is fixed in contact with the inner surface of the side plate 210b on the back side (left side in the left-right direction of the machine body) of the handling chamber 210. The left end portion of the shielding plate 100 is fixed to the right end portion of the support frame 296 described above, and is formed to have a size for closing the space between the side plate 210b of the handling chamber 210 and the support frame 296.

  By attaching in this way, as shown in FIG. 11, the shielding plate 100 is installed between the inner surface of the side plate 210 b above the handling chamber 210 and the right end portion of the support frame 296, and the space in the corner portion above it. A space of a predetermined size is provided in the upper right corner of the handling chamber 210. For this reason, conventionally, dust such as sawdust has entered and accumulated through the gap between the inner surface of the side plate 210b of the chamber 210 and the support frame 296 by threshing work, as described above, By closing the gap portion with the shielding plate 100, it is possible to prevent dust and the like from entering the corners, and to prevent accumulation of dust and the like. As a result, cleaning can be easily performed. In this embodiment, the shape of the shielding plate 100 is a substantially square shape when viewed from the front, and the corner of the handling chamber 210 is closed. However, the shape is not limited to this shape. It does not matter as a configuration such as a plate.

  Further, as shown in FIGS. 11 to 13, a partition plate 110 formed of a plate material or the like has a predetermined interval in the front-rear direction of the airframe in the front-rear direction of the airframe, in the middle of the front-rear direction of the upper surface of the shielding plate 100. However, a plurality of protrusions are provided in the upward direction substantially orthogonal to the upper surface of the shielding plate 100, and the upper end portion and the right end portion of the partition plate 110 are in contact with the inner surface of the corner portion of the handling chamber 210. Further, the lower left end portion of the partition plate 110 is disposed so as to abut on the right side surface portion of the support frame 296 having a quadrangular sectional view. A support member 83 of the tail pipe 61 is provided in the upper right portion of the handling chamber 210 in the vicinity of the upper end portion of the partition plate 110, and a lateral portion 61b of the tail pipe 61 is provided via the support member 83 as described later. It is supported.

  In this way, by attaching the partition plate 110 on the upper surface of the shielding plate 100 between the upper right corner of the chamber 210 and the support frame 296 in a direction perpendicular to the shielding plate 100, the middle portion of the support frame 296 is reinforced. Thus, the strength of the support frame 296 can be further increased. Furthermore, since it becomes possible to reinforce the inner surface of the corner portion on the back side (right side in the left-right direction of the machine body) of the handling chamber 210, the tail pipe 61 can be stably attached when the tail pipe 61 is attached to the outer side of the corner portion via the support member 83. It can be held. In particular, by providing a plurality of partition plates 110 in the vicinity of the support member 83, further reinforcement is possible. Further, by arranging the partition plate 110 between the shielding plate 100 and the corner portion and providing a space of a predetermined size in the upper right portion of the handling chamber 210, it is possible to have a heat insulation effect and to emit from the tail pipe 61. There is an advantage that it is difficult to directly transmit the influence of the generated heat or the like to the inside of the handling chamber 210. In the present embodiment, three partition plates 110 are attached, but there is no particular limitation.

Next, support of the exhaust device 41 will be described. As shown in FIGS. 4 and 10, 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 deposited on 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.
The support member 82 supports a vertical portion 61 a extending in the vertical direction of the tail pipe 61. On the other hand, the support member 83 supports a lateral portion 61 b extending in the horizontal direction of the tail pipe 61. By supporting in multiple places, it will be supported by the threshing part 15 more firmly. In the present embodiment, the support member supports the two places, but the structure may be supported at three or more places.

  Next, the cereal conveyance device 170 will be described. As shown in FIG. 8, the cereal conveying device 170 is arranged on the left side surface portion of the threshing unit 15 described above, and the culm conveying device 170 sandwiches one end (stock source side) of the harvested cereal. A feed chain 9 for conveying the cereals harvested by the mowing unit 14 to the rejection conveying chain 10 of the rejection conveying device 320 (see FIG. 7), and a feed chain 9 disposed above the feed chain 9 , And the like, and a plurality of elastic supports 172, 172,... That elastically support the pinch 171 with respect to the machine side. .

  Next, the cover part 120 that covers the pinch 171 will be described. As shown in FIGS. 14 and 15, the cover part 120 is formed so that the upper part of the cross-sectional shape when viewed from the front is rounded and extends vertically downward from the middle part in the vertical direction. It is a shape that covers substantially the upper half of the flange 171. In addition, a side turn lamp 121 for instructing the advancing direction of the aircraft and an emergency stop switch 122 for emergency stopping the engine 34 are disposed at a front and rear portions of the cover portion 120 at predetermined intervals.

  The side turn lamp 121 and the emergency stop switch 122 are attached to the inner side plate 175 supporting the clamp 171 via a support stay 123. Specifically, the back portion of the side turn lamp 121, such as the coupler and harness, is fixed to one side of the crank-shaped fixing plate 124, and the other side is bolted to one side of the support stay 123. Similarly, the emergency stop switch 122 also has a back surface, such as a coupler and a harness, fixed to one side of the crank-shaped fixing plate 125 and the other side bolted to one side of the support stay 123. The other side of the support stay 123 is attached to an inner side plate 175 in the vicinity of the upper portion of the support frame 174 that supports the nip 171. Further, the cover portion 120 is provided with insertion holes 126 and 127 through which the left part of the side turn lamp 121 and the emergency stop switch 122 is inserted to protrude, and the shape of the insertion hole 126 of the emergency stop switch 122 is as follows. The edge 128 is formed by burring the periphery of the insertion hole 126. In this way, the cover part 120 is attached to the side surface of the threshing part 15 so as to be removable. The shape of the cover part 120 is not limited to the present embodiment, and it is sufficient that the cover 171, the side turn lamp 121, the emergency stop switch 122, and the like can be covered.

  By attaching in this way, it is not necessary to remove or reconnect the harnesses when removing the cover part 120. Therefore, it is possible to easily perform maintenance such as clogging by removing the cover part 120. is there. In addition, troubles caused by forgetting to connect the harness during assembly can be prevented. Further, the cover 120 can be attached and detached without interfering with the side turn lamp 121, the emergency stop switch 122, etc., and damage to the lamp can be prevented. Further, by forming the edge portion 128 in the insertion hole 126, the strength of the insertion hole 126 can be ensured.

  As described above, the combine 11 according to the present embodiment rotatably supports the handling cylinder 220 in the handling chamber 210, covers the lower outer periphery of the handling cylinder 220 with the receiving net 230, and can remove the receiving net 230. In the threshing apparatus described above, the shielding plate 100 is disposed between the support frame 296 that supports the back net 290 that is the back side of the receiving net 230 on the side opposite to the feed chain 9 and the inner surface of the side plate 210b on the back side of the handling chamber 210. It is a thing. By comprising in this way, the entrance of dust to the upper corner on the back side of the handling chamber 210 can be prevented, and dust accumulation can be prevented. Also, cleaning can be easily performed.

  In addition, a plurality of partition plates 110 are provided in a direction perpendicular to the shielding plate 100 on the inner surface of the corner portion on the back side of the shielding plate 100, the support frame 296, and the handling chamber 210. With this configuration, the strength of the support frame 296 can be increased.

  Further, the partition plate 110 is disposed in the vicinity of a support member 83 provided to support the tail pipe 61 that discharges exhaust gas from the exhaust silencer 42 of the engine 34 to the outside of the machine body at the upper part of the handling chamber 210. . With this configuration, the strength of the tail pipe 61 mounting portion can be improved. Moreover, the approach of the combustible material to the tail pipe 61 vicinity used as a heat source can be interrupted | blocked with a shielding board, and a heat insulation space can be formed.

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 left side schematic diagram of the threshing part 15 and the selection part 16. FIG. The front view which shows the treatment room 210. FIG. The front view which shows the threshing part 15 and the tail pipe 61. FIG. FIG. 3 is a front sectional view showing the shielding plate 100. FIG. The right view which shows the treatment room 210. FIG. The side view which shows the cover part 120. Similarly front sectional drawing.

Explanation of symbols

9 Feed Chain 11 Combine 13 Airframe 34 Engine 42 Exhaust Silencer 61 Tail Pipe 82/83 Support Member 100 Shield Plate 110 Partition Plate 210 Handling Room 210b Side Plate 220 Handling Cylinder 230 Receiving Net 290 Back Net 296 Support Frame

Claims (3)

  In a threshing device that supports a handling cylinder rotatably in the handling chamber, covers the lower outer periphery of the handling cylinder with a receiving net, and allows the receiving net to be detachable, supports the back side of the receiving net opposite to the feed chain A combiner, characterized in that a shielding plate is disposed between the support frame to be operated and the inner surface of the side plate on the back side of the handling chamber.   The combine according to claim 1, wherein a plurality of partition plates are provided in a direction perpendicular to the shielding plate on the inner surface of the corner portion on the back side of the shielding plate, the support frame, and the handling chamber.   The combiner according to claim 2, wherein the partition plate is disposed in the vicinity of a support member provided to support a tail pipe that discharges exhaust gas from an engine silencer to the outside of the fuselage at the upper part of the handling chamber. .

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