JP2014193122A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester comprising a grain tank that secures safety for maintenance and inspection work and that has a large storage capacity.SOLUTION: The problem is solved by connecting an inlet port of an exhaust emission control device (40) to an exhaust manifold (30B) of an engine (9) via a connecting pipe (50), connecting a lower end part of a tail pipe (63) for leading exhaust gas discharged from an outlet port of the exhaust emission control device (40) to the outside of a machine to the outlet port, extending the tail pipe (63) upward along a grain elevating device (14), and surrounding the tail pipe (63) with a protective cover (67).

Description

  The present invention relates to a combine.

Conventionally, a configuration has been proposed in which a tail pipe that discharges high-temperature exhaust gas discharged from an engine to the outside of the engine is disposed in a space formed between the threshing apparatus and the Glen tank.
For example, Patent Document 1 describes a configuration in which a tail pipe has a double structure of an inner pipe and an outer pipe to prevent heat dissipation from the inner pipe where exhaust gas flows and becomes high temperature. The structure which extends the front-end | tip part above the threshing apparatus is described.

JP 2011-206067 A JP 2007-247472 A

However, since the combine described in Patent Document 1 is composed of only the inner pipe without an outer pipe provided in the upstream side portion connected to the exhaust port of the engine of the tail pipe, There is a risk that the components such as the sensor disposed around the inner pipe will become hot due to heat radiation from the inner pipe and cause malfunction of the sensor or the like, and the safety during maintenance and inspection work may be lowered.
Moreover, since the combine described in patent document 2 has arrange | positioned the tail pipe inclined back upwards between the side wall of a threshing apparatus, and the side wall of a Glen tank, it is necessary to narrow the width | variety of the left-right direction of a Glen tank. There was a possibility that the storage capacity of the Glen tank would be reduced.

  Then, the main subject of this invention is to propose the combine which can eliminate this problem.

The present invention that has solved the above problems is as follows.
That is, the invention described in claim 1 includes a threshing device (5) on the left and right sides of the fuselage, and a grain tank (6) for storing grain on the left and right sides of the fuselage, the grain tank (6). The front side of the machine is provided with an engine (9), and between the threshing device (5) and the glen tank (6), the cerealing device for conveying the grain threshed by the threshing device (5) to the glen tank (6) In the combine comprising (14),
An inclined wall (23B) that rises and inclines toward the threshing device (5) is formed at the bottom of the Glen tank (6), and the exhaust of the engine (9) is formed in a space below the inclined wall (23B). An exhaust purification device (40) for removing particulate matter from the gas is arranged, and an inlet of the exhaust purification device (40) is connected to an exhaust manifold (30B) of the engine (9) through a connection pipe (50). The lower end portion of the tail pipe (63) for guiding the exhaust gas discharged from the outlet to the outside of the machine is connected to the outlet of the exhaust purification device (40), and the tail pipe (63) is connected to the cereals. A combine that extends upward along the device (14) and surrounds the tail pipe (63) with a protective cover (67).

  The invention according to claim 2 is the combine according to claim 1, wherein a lower portion of the tail pipe (63) is extended upward along the lower surface of the inclined wall (23B).

  According to a third aspect of the present invention, the tail pipe (63) communicates with the lower tail pile (63A) connected to the outlet of the exhaust gas purification device (40) and the upper end of the lower tail pile (63A). The outer tail of the lower tail pipe (63A) with the upper tail of the lower tail pipe (63A) inserted into the lower end of the upper tail pipe (63B). The lower tail pile (63A) is surrounded by the protective cover (65), and the upper tail pipe is surrounded by a predetermined gap between the surface and the inner peripheral surface of the lower end portion of the upper tail pipe (63B). The combine according to claim 1, wherein (63B) is extended upward along the cerealing device (14).

  The invention according to claim 4 is the combine according to claim 3, wherein the lower tail pipe (63A) extends obliquely upward along the lower surface of the inclined wall (23B).

  According to a fifth aspect of the present invention, the protective cover (67) includes an upper cover (64) surrounding the upper tail pipe (63B) and a lower cover (65) surrounding the lower tail pipe (63A). The combine according to claim 3 or 4, wherein a predetermined gap is formed between the upper end of the lower cover (65) and the lower end of the upper cover (64).

  Invention of Claim 6 is a combine of any one of Claims 3-5 which formed the several opening part (65B) in the surrounding surface of the said lower side cover (65).

According to the first aspect of the present invention, the tail pipe (63) connected to the outlet of the exhaust purification device (40) and having a high temperature is surrounded by the protective cover (67), so the exhaust purification device (40). The safety of maintenance and inspection work such as this can be improved.
Further, even if a sensor or the like is disposed around the lower portion of the tail pipe (63), the temperature rise of the sensor or the like can be suppressed and malfunction can be prevented.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, the lower part of the tail pipe (63) extends obliquely upward along the lower surface of the inclined wall (23B). The storage capacity of the Glen tank can be expanded.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1, the tail pipe (63) communicates with the lower tail pile (63A) and the upper end portion of the lower tail pile (63A). The outer peripheral surface of the upper end portion of the lower tail pipe (63A) with the upper end portion of the lower tail pipe (63A) inserted into the lower end portion of the upper tail pipe (63B) And the inner peripheral surface of the lower end portion of the upper tail pipe (63B), a predetermined gap is formed, so that the outside air is drawn into the upper tail pipe (63B) by the diffuser effect and the temperature of the exhaust gas is lowered. Thus, it is possible to prevent the tail pipe (63B) from becoming excessively hot. Further, rainwater or the like that has entered from the upper end of the tail pipe (63) can be discharged to the outside through the gap.

  According to the invention of claim 4, in addition to the effect of the invention of claim 3, the lower tail pipe (63A) extends obliquely upward along the lower surface of the inclined wall (23B). The storage capacity of the Glen tank can be expanded.

  According to the invention described in claim 5, in addition to the effects of the invention described in claim 3 or 4, the protective cover (67) includes the upper cover (64) surrounding the upper tail pipe (63B) and the lower tail. Since it comprises a lower cover (65) surrounding the pipe (63A) and a predetermined gap is formed between the upper end of the lower cover (65) and the lower end of the upper cover (64), the diffuser The outside air to be drawn into the upper tail pipe (63B) due to the effect is smoothly drawn from the gap between the upper end portion of the lower cover (65) and the lower end portion of the upper cover (64), and the upper tail pipe ( The temperature of the exhaust gas in 63B) can be further reduced.

  According to the invention described in claim 6, in addition to the effect of the invention described in any one of claims 3 to 5, a plurality of openings (65B) are formed on the peripheral surface of the lower cover (65). Therefore, it is possible to prevent the diffuser effect from being lowered by the protective cover (65). Further, rainwater or the like discharged from the gap between the upper tail pipe (63B) and the lower tail pile (63A) can be discharged to the outside from the opening (65B).

It is a front view of a combine. It is a left view for the principal part description of a combine. It is a top view for the principal part description of a combine. It is a rear view for the principal part description of a combine. It is a left view of the periphery of the first tail pipe. It is a left view of the periphery of the second tail pipe. It is a right view of the 2nd tail pipe which attached the protective cover. It is a left view of the periphery of the air cleaner. It is a top view around an air cleaner. It is a front view for the principal part description of an engine room.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in order to make an understanding easy, although it showed and demonstrated the direction for convenience, the structure is not limited by these.

As shown in FIGS. 1 to 4, the combine 1 includes a traveling device 3 composed of a pair of left and right crawlers traveling in the field, a reaping device 4 that harvests corn from the field at the front end position of the machine body, and a culm behind it. A threshing device 5 that performs threshing / selection of the threshing, and a Glen tank 6 that is juxtaposed on the right side of the threshing device 5 and stores the threshed and sorted grain, and faces the back of the reaping device 5 on the front side of the Glen tank 6 A cabin 7 on which an operator is boarded is provided at the site.
Further, on the rear side of the Glen tank 6, a discharge auger 8 that discharges stored grains to the outside of the machine is provided so as to be pivotable about the vertical axis, and in the engine room E below the cabin 7, there is a diesel engine. 9 is installed.

<Threshing device>
The cereals harvested by the reaping device 4 are supplied to the threshing device 5 and threshed and sorted by the threshing device 5. The threshing device 5 includes a handling chamber for threshing cereals at the upper part and a sorting room for selecting cereals at the lower part. A handling cylinder having a plurality of tooth handling teeth in the front-rear direction is pivotally supported in the handling chamber, and the first receptacle for collecting the grains leaking from the swing sorting device and the branch bellflower adhere to the sorting chamber. A second receiving bowl is provided to collect the finished grains.

The grain recovered by the first receiving is transported upward by a first cerealing device (a cerealing device in claims) 14 arranged on the right side of the threshing device 5, and put into the glen tank 6 to be temporarily stored. It is stored in. The lower part of the first cerealing device 14 communicates with a discharge port formed at the lower right side of the threshing device 5, and the upper part of the first cerealing device 14 communicates with the inlet of the glen tank 6.
Moreover, the 1st threshing apparatus 14 is installed in the space S pinched | interposed by the threshing apparatus 5 and the Glen tank 6 so that it may go up toward the front-end | tip part from the lower part, and it may incline.

  The cereal grains to which branch branches and the like collected by the second receiving pad are attached are transferred to the second processing chamber by the second cerealing device installed on the right side of the threshing device 5. The lower part of the second cerealing device located behind the lower part of the first cerealing device 14 communicates with a discharge port formed in the lower right side of the threshing device 5, and the upper part of the second cerealing device is the second processing. It communicates with the room entrance. Moreover, the 2nd cerealing apparatus is installed in the space S pinched | interposed by the threshing apparatus 5 and the Glen tank 6 so that it may be inclined upwards toward the front-end | tip part from the lower part.

<Glentank>
The grain conveyed upward by the first cerealing device 14 is stored in the Glen tank 6. The Glen tank 6 includes a front wall and a rear wall that are spaced apart in the front-rear direction, a right wall and a left wall that are spaced apart in the left-right direction, a ceiling wall, and a bottom wall. At the upper part of the left wall, an inlet for inputting the grain is formed, and at the bottom of the glen tank 6, a discharge spiral for transferring the grain to the discharge auger 8 is provided.
The upper part of the left wall of the Glen tank 6 is formed with a vertical wall 23A extending vertically in the vertical direction in order to store a large amount of grain, and the lower part of the left wall efficiently stores the stored grain. In order to discharge well into the discharge spiral, it is formed by an inclined wall 23B having an angle of repose from the left side to the right side. Note that the inclined wall 23B is formed with a stepped portion having a different height in the longitudinal direction of the body.

  In order to make effective use of the space S formed between the threshing device 5 and the Glen tank 6, the vertical wall 23A of the left wall has a recess for arranging the first cerealing device 14 and the second cerealing device. 22A. Note that the recess 22A is formed by a stepped portion having a different height in the longitudinal direction of the vertical wall 23A.

The left wall inclined wall 23B has a recess 22B in which the exhaust pipe 60 of a DPF unit (exhaust purification device in claims) 40 that is a diesel particulate filter is disposed. In addition, the recessed part 22B is formed by the level | step-difference part from which height differs in the machine body front-back direction of the inclined wall 23B.
By arranging the exhaust pipe 60 of the high-temperature DPF unit 40 in the recess 22B of the inclined wall 23B on the left wall, drying of the grains stored in the glen tank 6 is promoted, and the grains are efficiently conveyed. Can do.

  The discharge auger 8 is composed of a cerealing cylinder 8A erected on the rear side of the Glen tank 6 so as to be rotatable on the vertical axis, and a horizontal transfer cylinder 8B connected to the upper end of the cerealing cylinder 8A so as to be rotatable on the horizontal axis. The horizontal transfer cylinder 8B is configured to be turnable from the storage position placed on the support member 8D fixed to the upper surface of the threshing device 5 to the discharge work position protruding to the side of the machine body.

<Engine>
The engine 9 arranged in the engine room E is attached to the body frame 2 via a mount rubber. As shown in FIG. 5, the engine 9 is provided with a supercharger 30 having an intake turbine 30 </ b> A that supercharges air to the engine 9 and an exhaust manifold 30 </ b> B that exhausts exhaust gas from the engine 9.
An air cleaner 33 is connected to the intake turbine 30A to remove impurities in the air taken in through the connection pipe 35. A pre-cleaner 32 that takes in air while filtering outside air is connected to the air cleaner 33 through the connection pipe 34. The exhaust manifold 30 </ b> B is connected to an inlet of a DPF unit 40 that removes impurities in the exhaust gas via a connection pipe 50. A pipe for supplying fuel from the fuel tank to the engine 9 is disposed on the right side of the DPF unit 40.

<DPF unit>
As shown in FIG. 5, the DPF unit 40 includes an inflow side oxidation catalyst (DOC) 40 </ b> A and an outflow side particulate filter (DPF) 40 </ b> B, and exhaust gas discharged from the engine 9. The unburned fuel therein is oxidized by the DOC 40A, and the particulate matter in the exhaust gas is removed by the filtering action of the DPF 40B.

  In order to simplify the mounting structure, the DPF unit 40 is fixed to the machine body frame 2 via a mount rubber in the same manner as the engine 9. The DPF unit 40 is disposed between the rear surface of the engine 9 and the lower part of the first cerealing device 14 in the vicinity of the engine 9 in order to prevent the temperature of exhaust gas discharged from the engine 9 from decreasing. Further, the front end portion of the DPF unit 40 is arranged at substantially the same position as the front wall of the Glen tank 6 in order to promote drying of the grains stored in the Glen tank 6.

  As shown in FIGS. 3 and 4, the DPF unit 40 has a lower side of a substantially central portion in the left-right direction of the Glen tank 6 in order to dry the grains stored in the Glen tank 6 by heat radiation from the DPF unit 40. It is arrange | positioned below and it is arrange | positioned under the silhouette part of the inclined wall 23B of the left wall of the Glen tank 6 in planar view. The exhaust port of the DPF unit 40 is also located below the inclined wall 23B.

  As shown in FIG. 5, the inlet of the DPF unit 40 is connected to the exhaust manifold 30 </ b> B via the connection pipe 50, and exhaust gas from which impurities and the like have been removed is discharged to the outlet of the DPF unit 40. A first tail pipe which is an exhaust pipe 60 is connected.

  The connection pipe 50 includes a first connection pipe 51 made of a steel pipe, a flexible tube 52 made of a flexible stainless pipe that reduces the propagation of vibration of the engine 9, and a second connection pipe 53 made of a steel pipe. Yes.

  As shown in FIG. 5, the first connection pipe 51 extends from the exhaust manifold 30B substantially downward, and the flexible tube 52 extends from the lower end of the first connection pipe 51 substantially downward, The second connection pipe 53 is bent approximately 90 degrees from the lower end of the flexible tube 52 and then extends rearward and is connected to the inlet of the DPF unit 40.

  As shown in FIG. 4, the first connection pipe 51 is bent approximately 90 degrees from the exhaust manifold 30 </ b> B and then extends downward, and the flexible tube 52 extends downward from the lower end of the first connection pipe 51. The second connecting pipe 53 extends downward from the lower end of the flexible tube 52 and then curves backward by approximately 90 degrees and is connected to the inflow port of the DPF unit 40.

  As shown in FIG. 5, the exhaust pipe 60 includes a first tail pipe 61 made of a steel pipe and a first cover 62 formed in a curved shape or a refracting shape for preventing rainwater or the like from entering the first tail pipe 61. It is configured.

  The lower portion of the first tail pipe 61 extends upward from the outlet of the DPF unit 40, and then extends to the front upper left along the inclined wall 23B. The upper portion extends from the upper end portion of the lower portion of the first tail pipe 61 toward the upper front side at a steeper slope than the lower portion of the first tail pipe 61. The first cover 62 is attached to the upper side of the exhaust port formed at the upper end of the first tail pipe 61 with the opening 62A facing rearward.

  In order to effectively utilize the space S formed between the threshing device 5 and the Glen tank 6, the lower portion of the first tail pipe 61 is disposed in the left and right recess 22B formed in the inclined wall 23B, and the first The upper part of the 1 tail pipe 61 is in a vertical parallel recess 22A formed on the vertical wall 23A of the grain tank 6 in which the first cerealing device 14 is arranged, in a posture parallel to the first cerealing device 14 and the first raising It is arranged in front of the grain device 14. By arranging the first tail pipe 61 in the recess 22B of the inclined wall 23B of the Glen tank 6 or in the recess 22A of the vertical wall 23A, drying of the grains stored in the Glen tank 6 is promoted, and the grains Can be carried out efficiently.

  It is preferable that the inner diameter of the lower portion of the first tail pipe 61 is formed larger than the outer diameter of the outlet of the DPF unit 40. As a result, a predetermined gap is formed between the lower part of the first tail pipe 61 and the outlet of the DPF unit 40, and the flow of exhaust gas discharged from the outlet of the DPF unit 40 to the lower part of the first tail pipe 61. As a result, the diffuser effect is generated, the outside air is sucked, and the temperature of the exhaust gas discharged to the lower portion of the first tail pipe 61 can be lowered. Further, since the discharge of the outside air heated by the DPF unit 40 around the lower portion of the first tail pipe 61 is also promoted, failure of sensors provided around the DPF unit 40 can be prevented. Furthermore, rainwater or the like that has entered from the opening 62A of the first cover 62 can be drained out of the apparatus through the gap.

  The upper portion of the first tail pipe 61 is detachably attached to the front side of the first cerealing device 14 via a stay (not shown), and the first cover 62 is attached to the upper end portion of the first tail pipe 61 (shown). It is detachably attached via (omitted). Moreover, in order to prevent the deformation | transformation of the 1st cover 62 by the collision with the exterior and to maintain the attachment attitude | position of the 1st cover 62, the 1st cover 62 is connected to the upper end part of the 1st cerealing device 14 via the connection member 8C. It is preferable to connect to.

  The first cover 62 has a longitudinal cross-sectional shape formed in a semicircular arc shape, and the lower portion of the first cover 62 is formed in a cylindrical shape. It is preferable that the inner diameter of the cylindrical portion of the first cover 62 be larger than the outer diameter of the upper end portion of the first tail pipe 61. As a result, a predetermined gap is formed between the cylindrical portion of the first cover 62 and the upper end portion of the first tail pipe 61, and the exhaust gas discharged from the upper end portion of the first tail pipe 61 to the first cover 62 side. The diffuser effect is generated by the flow of the air, the outside air is sucked in, the temperature of the exhaust gas discharged to the first cover 62 is lowered, and the temperature of the exhaust gas discharged from the opening 62A of the first cover 62 to the outside is also Can be reduced.

In order to prevent the exhaust gas discharged from the first tail pipe 61 from being taken out by the precleaner 32, the vertical center position of the opening 62 </ b> A of the first cover 62 is set at the intake port of the precleaner 32. It is preferable to arrange at a higher position.
Further, in order to efficiently exhaust the exhaust gas to the outside of the machine, the discharge guide direction of the exhaust gas from the opening 62A of the first cover 62 is set so that the lateral feed cylinder 8B of the discharge auger 8 is in the storage state on the combine body. In a certain state, it is set substantially parallel to the lateral feed cylinder 8B.

Next, a second tail pipe (tail pipe in the claims) 63 that can be replaced with the above-described first tail pipe 61 will be described.
As shown in FIG. 6, the second tail pipe 63 has a larger diameter than the lower tail pipe 63A made of a steel pipe whose lower part is connected to the outlet of the DPF unit 40 and the outer diameter of the lower tail pipe 63A. The upper tail pipe 63B is formed of a steel pipe having a formed inner diameter and having a first cover 62 and the like attached to the upper end portion. Further, the outer periphery of the second tail pipe 63 is surrounded by a protective cover 67. The protective cover 67 includes a protective cover (upper cover in the claims) 64 surrounding the outer periphery of the upper tail pipe 63B, and a protective cover (lower cover in the claims) 65 surrounding the outer periphery of the lower tail pipe 63A. Is done.

  After the lower tail pipe 63A extends upward from the outlet of the DPF unit 40, the lower tail pipe 63A extends obliquely toward the front left upper side along the inclined wall 23B, and the upper tail pipe 63B The upper tail pipe 63B that covers the upper end of the tail pipe 63A extends from the lower end of the upper tail pipe 63B toward the upper front side more steeply than the lower tail pipe 63A. The first cover 62 is attached to the upper side of the exhaust port formed at the upper end of the first tail pipe 61 with the opening 62A facing rearward.

  The inner diameter of the lower part of the lower tail pipe 63A is formed larger than the outer diameter of the outlet of the DPF unit 40. As a result, a predetermined gap is formed between the lower portion of the lower tail pipe 63A and the outlet of the DPF unit 40, and the diffuser is caused by the flow of exhaust gas discharged from the outlet of the DPF unit 40 to the lower tail pipe 63A. An effect is generated, and the temperature of the exhaust gas discharged into the lower tail pipe 63A can be lowered by sucking outside air. Further, the discharge of the outside air heated by the DPF unit 40 around the lower portion of the lower tail pipe 63A is also promoted, so that the failure of sensors provided around the DPF unit 40 can be prevented. Furthermore, rainwater or the like that has entered from the opening 62A of the first cover 62 can be drained out of the apparatus through the gap.

  As shown in FIG. 7, it is preferable to attach a protective cover 65 to the outer peripheral portion of the lower tail pipe 63A in order to increase the safety of maintenance / inspection work. The protective cover 65 extends from the lower end of the lower tail pipe 63A to the lower part of the upper tail pipe 63B so as to cover the lower tail pipe 63A heated by the exhaust gas discharged from the DPF unit 40 to the lower tail pipe 63A. Between the upper part of the lower tail pipe 63A to be inserted, it is attached to the lower tail pipe 63A via a stay (not shown).

  In addition, the protective cover 65 has a large number of substantially elliptical openings 65 </ b> A each having a major axis in the vertical direction and are opened at predetermined intervals in the vertical direction and the circumferential direction. As a result, the diffuser effect at the lower portion of the upper tail pipe 63B and the upper portion of the lower tail pipe 63A can be maintained above a certain level, and rainwater or the like that has entered from the opening 62A of the first cover 62 can be removed from the gap. In addition, drainage performance can be maintained above a certain level.

  The inner diameter of the lower part of the upper tail pipe 63B is formed larger than the outer diameter of the upper part of the lower tail pipe 63A. As a result, a predetermined gap is formed between the lower part of the upper tail pipe 63B and the upper part of the lower tail pipe 63A into which the lower part of the upper tail pipe 63B is inserted, and is discharged from the lower tail pipe 63A to the upper tail pipe 63B side. The diffuser effect is generated by the flow of exhaust gas, and the temperature of the exhaust gas discharged to the upper tail pipe 63B can be lowered by sucking outside air. Further, the discharge of the outside air heated by the DPF unit 40 around the lower portion of the upper tail pipe 63B is also promoted, so that the failure of sensors provided around the DPF unit 40 can be prevented. Furthermore, rainwater or the like that has entered from the opening 62A of the first cover 62 can be drained out of the apparatus through the gap.

The upper tail pipe 63B is detachably attached to the front side of the first cerealing device 14 via a stay (not shown), and the first cover 62 has a stay (not shown) at the upper end of the first tail pipe 61. It is attached detachably via.
In addition, a protective cover 64 is provided on the outer periphery of the upper tail pipe 63B in order to enhance the safety of maintenance / inspection work. The protective cover 64 suppresses the heating of the threshing device 5 and the glen tank 6 due to the hot air of the upper tail pipe 63B that becomes high temperature. The lower end of the protective cover 64 is arranged with a predetermined gap from the upper end of the protective cover 65 of the lower tail pipe 63A, and external air outside the cover can be sucked from the gap. This enhances the effect of reducing the exhaust gas temperature in the second tail pipe.

Next, the second cover 66 that can replace the first cover 62 described above will be described.
As shown in FIG. 7, in order to improve safety during work, the second cover 66 is configured in a double structure including an inner cover 66A through which exhaust gas passes and an outer cover 66B that covers the inner cover 66A. Yes.

  The inner cover 66A extends upward from a lower end connected to the upper portion of the upper tail pipe 63B, and then curves backward. The inner cover 66A is formed in a semicircular arc shape in longitudinal section, and the rear side is opened.

  The outer cover 66B is formed to extend upward from the lower end along the inner cover 66A and then bend toward the rear. The outer cover 66B has a lower longitudinal cross-sectional shape that is cylindrical. Moreover, the upper longitudinal cross-sectional shape is formed in a semicircular arc shape, and the rear side is opened.

<Arrangement of air cleaner and pre-cleaner>
1-4, the large-sized air cleaner 33 which filters the external air supplied to the engine 9 is arrange | positioned above the threshing apparatus 5, and the intake efficiency of the engine 9 is improved.
The air cleaner 33 is disposed on the upper side of the threshing device 5 at a position adjacent to the left side of the left rear portion of the cabin 7 along the front-rear direction. The air cleaner 33 is supported by a support member 80 provided on the upper surface of the threshing device 5. In addition, since the support member 80 is attached to the cover 82 on the fixed side while avoiding the opening / closing portion of the upper cover 81 that covers the upper surface of the threshing device 5, there is no problem even if the upper cover 81 is opened / closed.

  As shown in FIGS. 8 and 9, the precleaner 32 is supported on the upper part of the first cerealing device 14 via a support member 83. An intermediate portion of the support member 83 is connected to a support member 8D that supports the horizontal transfer cylinder 8B.

  In order to prevent the intake of outside air heated by the engine 9 and the exhaust pipe 60, the outer peripheral portion of the precleaner 32 is partitioned by a shielding cover 36. The bottom plate of the shielding cover 36 facing the lower portion of the precleaner 32 is detachably attached to a stay 37 provided on the upper portion of the support member 83. The side plate of the shielding cover 36 facing the side portion of the precleaner 32 is It is formed in a substantially U shape in plan view, and a substantially U-shaped opening is arranged toward the threshing device 5 side.

  The shape of the side plate of the shielding cover 36 in plan view can be a polygonal shape, but the left side end portion of the side plate of the shielding cover 36 in the front-rear direction is threshing more than the left side end portion of the precleaner 32. It is preferable to extend to the device 5 side. Further, as the precleaner 32, it is preferable to use a self-cleaning precleaner in order to reduce the frequency of maintenance and inspection work.

Since the precleaner 32 is disposed at a position higher than the air cleaner 33 and is disposed on the rear side of the cabin 7 in plan view, interference with the lateral transfer cylinder 8B can be prevented.
The first cover 62 disposed at the upper ends of the pre-cleaner 32 and the tail pipe 61 is disposed at substantially the same height and is disposed at substantially the same position in the left-right direction, but the opening 62A of the first cover 62 is The opening is directed to the side opposite to the side where the precleaner 32 exists. This makes it difficult for the exhaust gas guided and discharged by the first cover 62 to be sucked into the precleaner 32.

<Engine room>
As shown in FIG. 10, an engine room E is provided below the cabin 7.

  The engine cover 95 is provided with a filter body made of a hollow iron plate or the like. Inside the engine cover 95, an intercooler 93, an oil cooler 92, a radiator 91, a fan 90, and an engine 9 are arranged in this order from the outside.

The intercooler 93 is a device that cools the combustion air-fuel mixture in order to increase the combustion efficiency of the engine 9, and is attached to a support member 96 provided outside the radiator 91. The exhaust port of the intercooler 93 is connected to the intake port of the engine 9 via a rubber hose 93A, and the support member 96 rotates in the left-right direction around a support shaft provided in the upper part of the support member 96 and extending in the front-rear direction. In order to prevent damage due to deformation of the rubber hose 93A that occurs when the supporting member 96 that moves is moved, it is preferable to provide a regulation guide 94 that regulates the deformation amount of the rubber hose 93A to a certain level or less.
Moreover, it is also possible to use an aluminum pipe having high heat conduction efficiency instead of the rubber hose 93A, and it is more preferable to provide a radiation fin on the outer periphery of the aluminum pipe.

  The oil cooler 92 is a device that cools the elevating cylinder and the driving oil for the transmission, and is attached to a support member 96 provided outside the radiator 91. A plurality of oil coolers 92 can be provided for each application.

The radiator 91 is a device that cools the cooling water heated by the engine 9, and is connected to a manifold that is a cooling water path of the engine 9.
The radiator 91 is disposed between the oil cooler 92 and the fan 90, and a support member for attaching the intercooler 93 and the oil cooler 92 is provided outside the radiator 91. Inside the radiator 91, the suction efficiency of the fan 90 is provided. A shroud surrounding the fan 90 is provided.
The shroud is preferably formed in a circular shape or a polygonal shape along the outer periphery of the fan 90, and is formed by using a thin plate-shaped steel plate in order to reduce the resistance to the intake of outside air by the fan 90.

  The fan 90 sucks outside air through the filter body of the engine cover 95 in the forward rotation driving state, cools the radiator 91 and the engine 9, and, in the reverse rotation driving state, the airframe through the filter body. This is an apparatus that exhausts the inside air inside and removes dust, dust, and the like attached to the filter body.

5 Threshing device 6 Glen tank 9 Engine 14 First threshing device
23B Inclined wall 30B Exhaust manifold 40 DPF unit (Exhaust gas purification device)
50 Connection pipe 63 Second tail pipe (tail pipe)
63A Lower tail pipe 63B Upper tail pipe 64 Protective cover (upper cover)
65 Protective cover (lower cover)
65A opening 67 protective cover

Claims (6)

A threshing device (5) is provided on one side of the machine body, a grain tank (6) for storing grains is provided on the left and right sides of the machine body, and an engine (9) is provided on the front side of the grain tank (6). In the combine provided with the cerealing device (14) for conveying the grain threshed by the threshing device (5) to the grain tank (6) between the threshing device (5) and the grain tank (6),
An inclined wall (23B) that rises and inclines toward the threshing device (5) is formed at the bottom of the Glen tank (6), and the exhaust of the engine (9) is formed in a space below the inclined wall (23B). An exhaust purification device (40) for removing particulate matter from the gas,
The inflow port of the exhaust purification device (40) is connected to the exhaust manifold (30B) of the engine (9) through the connection pipe (50), and the exhaust port of the exhaust purification device (40) is discharged from the outflow port. A tail pipe (63) for guiding the exhaust gas to be discharged outside the machine, and connecting the tail pipe (63) upward along the cerealing device (14),
The combine characterized in that the tail pipe (63) is surrounded by a protective cover (67).   The combine according to claim 1, wherein a lower part of the tail pipe (63) extends upward along the lower surface of the inclined wall (23B). A lower tail pile (63A) that connects the tail pipe (63) to the outlet of the exhaust purification device (40), and an upper tail pipe (63B) that communicates with the upper end of the lower tail pile (63A) Configure
With the upper end of the lower tail pile (63A) inserted into the lower end of the upper tail pipe (63B), the outer peripheral surface of the upper end of the lower tail pipe (63A) and the lower end of the upper tail pipe (63B) With a predetermined gap between the inner peripheral surface of the
The combine according to claim 1, wherein the lower tail pile (63A) is surrounded by the protective cover (65), and the upper tail pipe (63B) is extended upward along the cerealing device (14).   The combine according to claim 3, wherein the lower tail pipe (63A) extends obliquely upward along the lower surface of the inclined wall (23B). The protective cover (67) includes an upper cover (64) surrounding the upper tail pipe (63B) and a lower cover (65) surrounding the lower tail pipe (63A),
The combine according to claim 3 or 4, wherein a predetermined gap is formed between an upper end portion of the lower cover (65) and a lower end portion of the upper cover (64).   The combine according to any one of claims 3 to 5, wherein a plurality of openings (65B) are formed on a peripheral surface of the lower cover (65).

Images